diff --git a/build/CMakeLists.txt b/build/CMakeLists.txt index fb43bba6..5ce1dad5 100644 --- a/build/CMakeLists.txt +++ b/build/CMakeLists.txt @@ -6,7 +6,7 @@ PROJECT(mango CXX C ASM) # ------------------------------------------------------------------------------ set(MANGO_VERSION_MAJOR 1) -set(MANGO_VERSION_MINOR 4) +set(MANGO_VERSION_MINOR 5) set(MANGO_VERSION_PATCH 0) set(MANGO_VERSION_STRING ${MANGO_VERSION_MAJOR}.${MANGO_VERSION_MINOR}.${MANGO_VERSION_PATCH}) diff --git a/build/meson.build b/build/meson.build index 51efb8db..c123c7cf 100644 --- a/build/meson.build +++ b/build/meson.build @@ -7,7 +7,7 @@ project( 'mango', 'c', 'cpp', meson_version: '>= 0.50.0', - version: '1.4.0', + version: '1.5.0', default_options : [ 'c_std=c11', 'cpp_std=c++17', @@ -583,6 +583,16 @@ external_deflate_sources = files( '../source/external/libdeflate/lib/zlib_decompress.c', ) +if is_arm + external_deflate_sources += files( + '../source/external/libdeflate/lib/arm/cpu_features.c' + ) +elif is_x86 + external_deflate_sources += files( + '../source/external/libdeflate/lib/x86/cpu_features.c', + ) +endif + external_zlib_headers = files( '../source/external/zlib/crc32.h', '../source/external/zlib/inffast.h', @@ -610,16 +620,6 @@ external_zlib_sources = files( '../source/external/zlib/uncompr.c', ) -if is_arm - external_deflate_sources += files( - '../source/external/libdeflate/lib/arm/cpu_features.c' - ) -elif is_x86 - external_deflate_sources += files( - '../source/external/libdeflate/lib/x86/cpu_features.c', - ) -endif - external_unrar_headers = files( '../source/external/unrar/rarvm.hpp', '../source/external/unrar/suballoc.hpp', diff --git a/example/image/CMakeLists.txt b/example/image/CMakeLists.txt index abc50d21..ae764146 100644 --- a/example/image/CMakeLists.txt +++ b/example/image/CMakeLists.txt @@ -10,6 +10,7 @@ add_executable(jpeg_reader jpeg_reader/jpeg_reader.cpp) add_executable(icc_p3_test icc/p3.cpp) add_executable(blitter blitter/blitter.cpp) add_executable(palette palette/palette.cpp) +add_executable(async_decode async_decode/async_decode.cpp) file(COPY icc/DisplayP3-v2-micro.icc DESTINATION ${CMAKE_CURRENT_BINARY_DIR}) file(COPY blitter/conquer.jpg DESTINATION ${CMAKE_CURRENT_BINARY_DIR}) diff --git a/example/image/async_decode/async_decode.cpp b/example/image/async_decode/async_decode.cpp new file mode 100644 index 00000000..c5bdecc1 --- /dev/null +++ b/example/image/async_decode/async_decode.cpp @@ -0,0 +1,73 @@ +/* + MANGO Multimedia Development Platform + Copyright (C) 2012-2024 Twilight Finland 3D Oy Ltd. All rights reserved. +*/ +#include +#include +#include + +using namespace mango; +using namespace mango::image; +using namespace mango::filesystem; + +void test(const char* filename, int cancel_ms) +{ + File file(filename); + ImageDecoder decoder(file, filename); + + if (!decoder.isDecoder()) + { + return; + } + + ImageHeader header = decoder.header(); + Bitmap bitmap(header); + + u64 time0 = Time::ms(); + + float progress = 0.0f; + std::mutex mutex; + + auto future = decoder.launch([&mutex, &progress] (const ImageDecodeRect& rect) + { + std::lock_guard lock(mutex); + progress += rect.progress; + float percent = std::round(progress * 1000.0f) / 10.0f; + printLine("[+] Update: [{:>5} x {:<5}] ({:>5}, {:>5} ) {:6.1f} %", + rect.width, rect.height, rect.x, rect.y, percent); + }, bitmap); + + if (cancel_ms >= 0) + { + Sleep::ms(cancel_ms); + decoder.cancel(); + } + + future.get(); + + u64 time1 = Time::ms(); + printLine("Decoding: {} ms", time1 - time0); + + bitmap.save("test.png"); +} + +int main(int argc, const char* argv[]) +{ + if (argc < 2) + { + printLine("Too few arguments. usage: "); + exit(1); + } + + const char* filename = argv[1]; + + int cancel_ms = -1; + if (argc == 3) + { + cancel_ms = std::atoi(argv[2]); + } + + //printEnable(Print::Info, true); + + test(filename, cancel_ms); +} diff --git a/example/image/jpeg_benchmark/jpeg_benchmark.cpp b/example/image/jpeg_benchmark/jpeg_benchmark.cpp index 3600d0ba..576ba64b 100644 --- a/example/image/jpeg_benchmark/jpeg_benchmark.cpp +++ b/example/image/jpeg_benchmark/jpeg_benchmark.cpp @@ -346,7 +346,7 @@ size_t toojpeg_save(const char* filename, const Surface& surface) #define WUFFS_CONFIG__MODULE__BASE #define WUFFS_CONFIG__MODULE__JPEG -#include "../png_benchmark/wuffs/wuffs-unsupported-snapshot.c" +#include "../png_benchmark/wuffs/wuffs-v0.4.c" class WuffsCallbacks : public wuffs_aux::DecodeImageCallbacks { diff --git a/example/image/png_benchmark/png_benchmark.cpp b/example/image/png_benchmark/png_benchmark.cpp index 36d34e94..b5084f12 100644 --- a/example/image/png_benchmark/png_benchmark.cpp +++ b/example/image/png_benchmark/png_benchmark.cpp @@ -563,7 +563,7 @@ size_t save_fpnge(const Bitmap& bitmap) #define WUFFS_CONFIG__MODULE__PNG #define WUFFS_CONFIG__MODULE__ZLIB -#include "wuffs/wuffs-unsupported-snapshot.c" +#include "wuffs/wuffs-v0.4.c" class WuffsCallbacks : public wuffs_aux::DecodeImageCallbacks { diff --git a/example/image/png_benchmark/wuffs/wuffs-unsupported-snapshot.c b/example/image/png_benchmark/wuffs/wuffs-v0.4.c similarity index 77% rename from example/image/png_benchmark/wuffs/wuffs-unsupported-snapshot.c rename to example/image/png_benchmark/wuffs/wuffs-v0.4.c index 919ebfe6..014b1293 100644 --- a/example/image/png_benchmark/wuffs/wuffs-unsupported-snapshot.c +++ b/example/image/png_benchmark/wuffs/wuffs-v0.4.c @@ -80,15 +80,58 @@ extern "C" { // the last commit date in the repository used to build this library. Within // each major.minor branch, the commit count should increase monotonically. // -// ¡ Some code generation programs can override WUFFS_VERSION. -#define WUFFS_VERSION 0 +// WUFFS_VERSION was overridden by "wuffs gen -version" based on revision +// a14745aa458fd2b2785034efa04eab3c7b5b91e0 committed on 2024-09-14. +#define WUFFS_VERSION 0x000040000 #define WUFFS_VERSION_MAJOR 0 -#define WUFFS_VERSION_MINOR 0 +#define WUFFS_VERSION_MINOR 4 #define WUFFS_VERSION_PATCH 0 -#define WUFFS_VERSION_PRE_RELEASE_LABEL "unsupported.snapshot" -#define WUFFS_VERSION_BUILD_METADATA_COMMIT_COUNT 0 -#define WUFFS_VERSION_BUILD_METADATA_COMMIT_DATE 0 -#define WUFFS_VERSION_STRING "0.0.0+0.00000000" +#define WUFFS_VERSION_PRE_RELEASE_LABEL "alpha.9" +#define WUFFS_VERSION_BUILD_METADATA_COMMIT_COUNT 3837 +#define WUFFS_VERSION_BUILD_METADATA_COMMIT_DATE 20240914 +#define WUFFS_VERSION_STRING "0.4.0-alpha.9+3837.20240914" + +// ---------------- Private Implementation Macros Re-definition Check + +// Users (those who #include the "wuffs-vM.N.c" file) should not define any +// WUFFS_PRIVATE_IMPL__ETC macros, only WUFFS_CONFIG__ETC macros (and +// WUFFS_IMPLEMENTATION). Mucking about with the private implementation macros +// is not supported and may break when upgrading to newer Wuffs versions. + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_CRC32) || \ + defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) || \ + defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64) || \ + defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) || \ + defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) || \ + defined(WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE) || \ + defined(WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) || \ + defined(WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL) || \ + defined(WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U16) || \ + defined(WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32) || \ + defined(WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U64) || \ + defined(WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U8) + +#if defined(__GNUC__) || defined(__clang__) +#warning "Defining WUFFS_PRIVATE_IMPL__ETC yourself is not supported" +#elif defined(_MSC_VER) +#pragma message("Defining WUFFS_PRIVATE_IMPL__ETC yourself is not supported") +#endif + +#endif + +// ---------------- Obsolete Macros Check + +// std/tga was renamed to std/targa in September 2024 (Wuffs v0.4 alpha). +#if defined(WUFFS_CONFIG__MODULE__TGA) + +#if defined(__GNUC__) || defined(__clang__) +#warning "WUFFS_CONFIG__MODULE__TGA was renamed to WUFFS_CONFIG__MODULE__TARGA" +#elif defined(_MSC_VER) +#pragma message( \ + "WUFFS_CONFIG__MODULE__TGA was renamed to WUFFS_CONFIG__MODULE__TARGA") +#endif + +#endif // ---------------- Configuration @@ -116,11 +159,11 @@ extern "C" { // intrinsics. Look for __ARM_FEATURE_CRC32 instead. #if defined(__ARM_FEATURE_CRC32) #include -#define WUFFS_BASE__CPU_ARCH__ARM_CRC32 +#define WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_CRC32 #endif // defined(__ARM_FEATURE_CRC32) #if defined(__ARM_NEON) #include -#define WUFFS_BASE__CPU_ARCH__ARM_NEON +#define WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON #endif // defined(__ARM_NEON) #endif // defined(__ARM_FEATURE_UNALIGNED) etc @@ -128,26 +171,82 @@ extern "C" { // POPCNT. This is checked at runtime via cpuid, not at compile time. // // Likewise, "cpu_arch >= x86_avx2" also requires PCLMUL, POPCNT and SSE4.2. -#if defined(__i386__) || defined(__x86_64__) +// +// ---- +// +// Technically, we could use the SSE family on 32-bit x86, not just 64-bit x86. +// But some intrinsics don't compile in 32-bit mode. It's not worth the hassle. +// https://github.com/google/wuffs/issues/145 +#if defined(__x86_64__) #if !defined(__native_client__) #include #include -// X86_FAMILY means X86 (32-bit) or X86_64 (64-bit, obviously). -#define WUFFS_BASE__CPU_ARCH__X86_FAMILY -#if defined(__x86_64__) -#define WUFFS_BASE__CPU_ARCH__X86_64 -#endif // defined(__x86_64__) +#define WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64 +#define WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2 +#define WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3 #endif // !defined(__native_client__) -#endif // defined(__i386__) || defined(__x86_64__) +#endif // defined(__x86_64__) #elif defined(_MSC_VER) // (#if-chain ref AVOID_CPU_ARCH_1) -#if defined(_M_IX86) || defined(_M_X64) -#if defined(__AVX__) || defined(__clang__) +#if defined(_M_X64) + +// On X86_64, Microsoft Visual C/C++ (MSVC) only supports SSE2 by default. +// There are /arch:SSE2, /arch:AVX and /arch:AVX2 compiler flags (the AVX2 one +// is roughly equivalent to X86_64_V3), but there is no /arch:SSE42 compiler +// flag that's equivalent to X86_64_V2. +// +// For getting maximum performance with X86_64 MSVC and Wuffs, pass /arch:AVX2 +// (and then test on the oldest hardware you intend to support). +// +// Absent that compiler flag, either define one of the three macros listed +// below or else the X86_64 SIMD code will be disabled and you'll get a #pragma +// message stating this library "performs best with /arch:AVX2". This message +// is harmless and ignorable, in that the non-SIMD code is still correct and +// reasonably performant, but is a reminder that when combining Wuffs and MSVC, +// some compiler configuration is required for maximum performance. +// +// - WUFFS_CONFIG__DISABLE_MSVC_CPU_ARCH__X86_64_FAMILY +// - WUFFS_CONFIG__ENABLE_MSVC_CPU_ARCH__X86_64_V2 (enables SSE4.2 and below) +// - WUFFS_CONFIG__ENABLE_MSVC_CPU_ARCH__X86_64_V3 (enables AVX2 and below) +// +// Defining the first one (WUFFS_CONFIG__DISABLE_MSVC_CPU_ARCH__X86_64_FAMILY) +// or defining none of those three (the default state) are equivalent (in that +// both disable the SIMD code paths), other than that pragma message. +// +// When defining these WUFFS_CONFIG__ENABLE_ETC macros with MSVC, be aware that +// some users report it leading to ICEs (Internal Compiler Errors), but other +// users report no problems at all (and improved performance). It's unclear +// exactly what combination of SIMD code and MSVC configuration lead to ICEs. +// Do your own testing with your own MSVC version and configuration. +// +// https://github.com/google/wuffs/issues/148 +// https://github.com/google/wuffs/issues/151 +// https://developercommunity.visualstudio.com/t/fatal--error-C1001:-Internal-compiler-er/10703305 +// +// Clang (including clang-cl) and GCC don't need this WUFFS_CONFIG__ETC macro +// machinery, or having the Wuffs-the-library user to fiddle with compiler +// flags, because they support "__attribute__((target(arg)))". +#if defined(__AVX2__) || defined(__clang__) || \ + defined(WUFFS_CONFIG__ENABLE_MSVC_CPU_ARCH__X86_64_V3) +#define WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64 +#define WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2 +#define WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3 +#elif defined(WUFFS_CONFIG__ENABLE_MSVC_CPU_ARCH__X86_64_V2) +#define WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64 +#define WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2 +#elif !defined(WUFFS_CONFIG__DISABLE_MSVC_CPU_ARCH__X86_64_FAMILY) +#pragma message("Wuffs with MSVC+X64 performs best with /arch:AVX2") +#endif // defined(__AVX2__) || defined(__clang__) || etc + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64) + +#if defined(WUFFS_CONFIG__DISABLE_MSVC_CPU_ARCH__X86_64_FAMILY) +#error "MSVC_CPU_ARCH simultaneously enabled and disabled" +#endif -// We need for the __cpuid function. #include -// That's not enough for X64 SIMD, with clang-cl, if we want to use +// intrin.h isn't enough for X64 SIMD, with clang-cl, if we want to use // "__attribute__((target(arg)))" without e.g. "/arch:AVX". // // Some web pages suggest that is all you need, as it pulls in @@ -156,25 +255,9 @@ extern "C" { #include // AVX, AVX2, FMA, POPCNT #include // SSE4.2 #include // AES, PCLMUL -// X86_FAMILY means X86 (32-bit) or X86_64 (64-bit, obviously). -#define WUFFS_BASE__CPU_ARCH__X86_FAMILY -#if defined(_M_X64) -#define WUFFS_BASE__CPU_ARCH__X86_64 -#endif // defined(_M_X64) - -#else // defined(__AVX__) || defined(__clang__) - -// clang-cl (which defines both __clang__ and _MSC_VER) supports -// "__attribute__((target(arg)))". -// -// For MSVC's cl.exe (unlike clang or gcc), SIMD capability is a compile-time -// property of the source file (e.g. a /arch:AVX or -mavx compiler flag), not -// of individual functions (that can be conditionally selected at runtime). -#pragma message("Wuffs with MSVC+IX86/X64 needs /arch:AVX for best performance") - -#endif // defined(__AVX__) || defined(__clang__) -#endif // defined(_M_IX86) || defined(_M_X64) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64) +#endif // defined(_M_X64) #endif // (#if-chain ref AVOID_CPU_ARCH_1) #endif // (#if-chain ref AVOID_CPU_ARCH_0) @@ -197,20 +280,20 @@ extern "C" { static inline bool // wuffs_base__cpu_arch__have_arm_crc32(void) { -#if defined(WUFFS_BASE__CPU_ARCH__ARM_CRC32) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_CRC32) return true; #else return false; -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_CRC32) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_CRC32) } static inline bool // wuffs_base__cpu_arch__have_arm_neon(void) { -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) return true; #else return false; -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) } static inline bool // @@ -219,7 +302,7 @@ wuffs_base__cpu_arch__have_x86_avx2(void) { defined(__AVX2__) return true; #else -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64) // GCC defines these macros but MSVC does not. // - bit_AVX2 = (1 << 5) const unsigned int avx2_ebx7 = 0x00000020; @@ -257,9 +340,9 @@ wuffs_base__cpu_arch__have_x86_avx2(void) { } } #else -#error "WUFFS_BASE__CPU_ARCH__ETC combined with an unsupported compiler" +#error "WUFFS_PRIVATE_IMPL__CPU_ARCH__ETC combined with an unsupported compiler" #endif // defined(__GNUC__); defined(_MSC_VER) -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_64) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64) return false; #endif // defined(__PCLMUL__) && defined(__POPCNT__) && defined(__SSE4_2__) && // defined(__AVX2__) @@ -270,7 +353,7 @@ wuffs_base__cpu_arch__have_x86_bmi2(void) { #if defined(__BMI2__) return true; #else -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64) // GCC defines these macros but MSVC does not. // - bit_BMI2 = (1 << 8) const unsigned int bmi2_ebx7 = 0x00000100; @@ -292,9 +375,9 @@ wuffs_base__cpu_arch__have_x86_bmi2(void) { return true; } #else -#error "WUFFS_BASE__CPU_ARCH__ETC combined with an unsupported compiler" +#error "WUFFS_PRIVATE_IMPL__CPU_ARCH__ETC combined with an unsupported compiler" #endif // defined(__GNUC__); defined(_MSC_VER) -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64) return false; #endif // defined(__BMI2__) } @@ -304,7 +387,7 @@ wuffs_base__cpu_arch__have_x86_sse42(void) { #if defined(__PCLMUL__) && defined(__POPCNT__) && defined(__SSE4_2__) return true; #else -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64) // GCC defines these macros but MSVC does not. // - bit_PCLMUL = (1 << 1) // - bit_POPCNT = (1 << 23) @@ -328,9 +411,9 @@ wuffs_base__cpu_arch__have_x86_sse42(void) { return true; } #else -#error "WUFFS_BASE__CPU_ARCH__ETC combined with an unsupported compiler" +#error "WUFFS_PRIVATE_IMPL__CPU_ARCH__ETC combined with an unsupported compiler" #endif // defined(__GNUC__); defined(_MSC_VER) -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64) return false; #endif // defined(__PCLMUL__) && defined(__POPCNT__) && defined(__SSE4_2__) } @@ -349,9 +432,15 @@ wuffs_base__cpu_arch__have_x86_sse42(void) { // The "defined(__clang__)" isn't redundant. While vanilla clang defines // __GNUC__, clang-cl (which mimics MSVC's cl.exe) does not. #if defined(__GNUC__) || defined(__clang__) +#define WUFFS_BASE__FORCE_INLINE __attribute__((__always_inline__)) #define WUFFS_BASE__POTENTIALLY_UNUSED __attribute__((unused)) #define WUFFS_BASE__WARN_UNUSED_RESULT __attribute__((warn_unused_result)) +#elif defined(_MSC_VER) +#define WUFFS_BASE__FORCE_INLINE __forceinline +#define WUFFS_BASE__POTENTIALLY_UNUSED +#define WUFFS_BASE__WARN_UNUSED_RESULT #else +#define WUFFS_BASE__FORCE_INLINE #define WUFFS_BASE__POTENTIALLY_UNUSED #define WUFFS_BASE__WARN_UNUSED_RESULT #endif @@ -445,28 +534,6 @@ wuffs_base__strip_const_from_u64_ptr(const uint64_t* ptr) { // -------- -// wuffs_private_impl__placeholder_etc_with_non_null_address provides non-NULL -// pointers to various integer types. These values aren't intended to ever be -// modified and their addresses aren't intended to ever be dereferenced. -// -// It's just that adding 0 to a NULL pointer can be undefined behavior (and -// UBSAN will complain), so functions like wuffs_base__empty_slice_u8 need some -// arbitrary non-NULL placeholder pointer, even though the slice has 0 length. - -extern const uint8_t // - wuffs_private_impl__placeholder_u8_with_non_null_address; - -extern const uint16_t // - wuffs_private_impl__placeholder_u16_with_non_null_address; - -extern const uint32_t // - wuffs_private_impl__placeholder_u32_with_non_null_address; - -extern const uint64_t // - wuffs_private_impl__placeholder_u64_with_non_null_address; - -// -------- - // wuffs_base__empty_struct is used when a Wuffs function returns an empty // struct. In C, if a function f returns void, you can't say "x = f()", but in // Wuffs, if a function g returns empty, you can say "y = g()". @@ -535,6 +602,7 @@ extern const char wuffs_base__suspension__even_more_information[]; extern const char wuffs_base__suspension__mispositioned_read[]; extern const char wuffs_base__suspension__mispositioned_write[]; extern const char wuffs_base__suspension__short_read[]; +extern const char wuffs_base__suspension__short_workbuf[]; extern const char wuffs_base__suspension__short_write[]; extern const char wuffs_base__error__bad_i_o_position[]; extern const char wuffs_base__error__bad_argument_length_too_short[]; @@ -548,6 +616,7 @@ extern const char wuffs_base__error__bad_vtable[]; extern const char wuffs_base__error__bad_workbuf_length[]; extern const char wuffs_base__error__bad_wuffs_version[]; extern const char wuffs_base__error__cannot_return_a_suspension[]; +extern const char wuffs_base__error__disabled_by_wuffs_config_dst_pixel_format_enable_allowlist[]; extern const char wuffs_base__error__disabled_by_previous_error[]; extern const char wuffs_base__error__initialize_falsely_claimed_already_zeroed[]; extern const char wuffs_base__error__initialize_not_called[]; @@ -700,6 +769,12 @@ typedef struct wuffs_base__transform__output__struct { // Wuffs' u32 values are big-endian ("JPEG" is 0x4A504547 not 0x4745504A) to // preserve ordering: "JPEG" < "MP3 " and 0x4A504547 < 0x4D503320. +// Android Binary XML (for resources; see AndroidBinXmlParser.java). +#define WUFFS_BASE__FOURCC__ABXR 0x41425852 + +// Android Binary XML (for system_server; see BinaryXmlSerializer.java). +#define WUFFS_BASE__FOURCC__ABXS 0x41425853 + // Background Color. #define WUFFS_BASE__FOURCC__BGCL 0x4247434C @@ -724,6 +799,9 @@ typedef struct wuffs_base__transform__output__struct { // Encapsulated PostScript. #define WUFFS_BASE__FOURCC__EPS 0x45505320 +// Ericsson Texture Compression 2 (iPACKMAN). +#define WUFFS_BASE__FOURCC__ETC2 0x45544332 + // Exchangeable Image File Format. #define WUFFS_BASE__FOURCC__EXIF 0x45584946 @@ -781,6 +859,9 @@ typedef struct wuffs_base__transform__output__struct { // Lempel–Ziv 4. #define WUFFS_BASE__FOURCC__LZ4 0x4C5A3420 +// Lzip. +#define WUFFS_BASE__FOURCC__LZIP 0x4C5A4950 + // Lempel–Ziv Markov-chain Algorithm. #define WUFFS_BASE__FOURCC__LZMA 0x4C5A4D41 @@ -850,6 +931,9 @@ typedef struct wuffs_base__transform__output__struct { // Truevision Advanced Raster Graphics Adapter. #define WUFFS_BASE__FOURCC__TGA 0x54474120 +// Thumbhash. +#define WUFFS_BASE__FOURCC__TH 0x54482020 + // Tagged Image File Format. #define WUFFS_BASE__FOURCC__TIFF 0x54494646 @@ -892,6 +976,8 @@ typedef struct wuffs_base__transform__output__struct { #define WUFFS_BASE__QUIRK_IGNORE_CHECKSUM 1 +#define WUFFS_BASE__QUIRK_QUALITY 2 + // -------- // Flicks are a unit of time. One flick (frame-tick) is 1 / 705_600_000 of a @@ -1164,6 +1250,11 @@ wuffs_base__make_bitvec256(uint64_t e00, return res; } +static inline uint64_t // +wuffs_base__bitvec256__get_u64(const wuffs_base__bitvec256* b, uint32_t i) { + return b->elements_u64[i & 3]; +} + // -------- // wuffs_base__optional_u63 is like a std::optional, but for C (not @@ -1667,7 +1758,7 @@ wuffs_base__make_slice_u64(uint64_t* ptr, size_t len) { static inline wuffs_base__slice_u8 // wuffs_base__make_slice_u8_ij(uint8_t* ptr, size_t i, size_t j) { wuffs_base__slice_u8 ret; - ret.ptr = ptr + i; + ret.ptr = ptr ? (ptr + i) : NULL; ret.len = (j >= i) ? (j - i) : 0; return ret; } @@ -1675,7 +1766,7 @@ wuffs_base__make_slice_u8_ij(uint8_t* ptr, size_t i, size_t j) { static inline wuffs_base__slice_u16 // wuffs_base__make_slice_u16_ij(uint16_t* ptr, size_t i, size_t j) { wuffs_base__slice_u16 ret; - ret.ptr = ptr + i; + ret.ptr = ptr ? (ptr + i) : NULL; ret.len = (j >= i) ? (j - i) : 0; return ret; } @@ -1683,7 +1774,7 @@ wuffs_base__make_slice_u16_ij(uint16_t* ptr, size_t i, size_t j) { static inline wuffs_base__slice_u32 // wuffs_base__make_slice_u32_ij(uint32_t* ptr, size_t i, size_t j) { wuffs_base__slice_u32 ret; - ret.ptr = ptr + i; + ret.ptr = ptr ? (ptr + i) : NULL; ret.len = (j >= i) ? (j - i) : 0; return ret; } @@ -1691,7 +1782,7 @@ wuffs_base__make_slice_u32_ij(uint32_t* ptr, size_t i, size_t j) { static inline wuffs_base__slice_u64 // wuffs_base__make_slice_u64_ij(uint64_t* ptr, size_t i, size_t j) { wuffs_base__slice_u64 ret; - ret.ptr = ptr + i; + ret.ptr = ptr ? (ptr + i) : NULL; ret.len = (j >= i) ? (j - i) : 0; return ret; } @@ -1699,8 +1790,7 @@ wuffs_base__make_slice_u64_ij(uint64_t* ptr, size_t i, size_t j) { static inline wuffs_base__slice_u8 // wuffs_base__empty_slice_u8(void) { wuffs_base__slice_u8 ret; - ret.ptr = wuffs_base__strip_const_from_u8_ptr( - &wuffs_private_impl__placeholder_u8_with_non_null_address); + ret.ptr = NULL; ret.len = 0; return ret; } @@ -1708,8 +1798,7 @@ wuffs_base__empty_slice_u8(void) { static inline wuffs_base__slice_u16 // wuffs_base__empty_slice_u16(void) { wuffs_base__slice_u16 ret; - ret.ptr = wuffs_base__strip_const_from_u16_ptr( - &wuffs_private_impl__placeholder_u16_with_non_null_address); + ret.ptr = NULL; ret.len = 0; return ret; } @@ -1717,8 +1806,7 @@ wuffs_base__empty_slice_u16(void) { static inline wuffs_base__slice_u32 // wuffs_base__empty_slice_u32(void) { wuffs_base__slice_u32 ret; - ret.ptr = wuffs_base__strip_const_from_u32_ptr( - &wuffs_private_impl__placeholder_u32_with_non_null_address); + ret.ptr = NULL; ret.len = 0; return ret; } @@ -1726,8 +1814,7 @@ wuffs_base__empty_slice_u32(void) { static inline wuffs_base__slice_u64 // wuffs_base__empty_slice_u64(void) { wuffs_base__slice_u64 ret; - ret.ptr = wuffs_base__strip_const_from_u64_ptr( - &wuffs_private_impl__placeholder_u64_with_non_null_address); + ret.ptr = NULL; ret.len = 0; return ret; } @@ -1787,8 +1874,7 @@ wuffs_base__make_table_u64(uint64_t* ptr, static inline wuffs_base__table_u8 // wuffs_base__empty_table_u8(void) { wuffs_base__table_u8 ret; - ret.ptr = wuffs_base__strip_const_from_u8_ptr( - &wuffs_private_impl__placeholder_u8_with_non_null_address); + ret.ptr = NULL; ret.width = 0; ret.height = 0; ret.stride = 0; @@ -1798,8 +1884,7 @@ wuffs_base__empty_table_u8(void) { static inline wuffs_base__table_u16 // wuffs_base__empty_table_u16(void) { wuffs_base__table_u16 ret; - ret.ptr = wuffs_base__strip_const_from_u16_ptr( - &wuffs_private_impl__placeholder_u16_with_non_null_address); + ret.ptr = NULL; ret.width = 0; ret.height = 0; ret.stride = 0; @@ -1809,8 +1894,7 @@ wuffs_base__empty_table_u16(void) { static inline wuffs_base__table_u32 // wuffs_base__empty_table_u32(void) { wuffs_base__table_u32 ret; - ret.ptr = wuffs_base__strip_const_from_u32_ptr( - &wuffs_private_impl__placeholder_u32_with_non_null_address); + ret.ptr = NULL; ret.width = 0; ret.height = 0; ret.stride = 0; @@ -1820,8 +1904,7 @@ wuffs_base__empty_table_u32(void) { static inline wuffs_base__table_u64 // wuffs_base__empty_table_u64(void) { wuffs_base__table_u64 ret; - ret.ptr = wuffs_base__strip_const_from_u64_ptr( - &wuffs_private_impl__placeholder_u64_with_non_null_address); + ret.ptr = NULL; ret.width = 0; ret.height = 0; ret.stride = 0; @@ -1960,6 +2043,20 @@ WUFFS_BASE__MAYBE_STATIC int32_t // wuffs_base__magic_number_guess_fourcc(wuffs_base__slice_u8 prefix_data, bool prefix_closed); +// ---------------- Quirk Values + +// These constants are the value half of a key-value pair, where the key is +// WUFFS_BASE__QUIRK_QUALITY. +// +// In the Wuffs API, set_quirk takes a u64 value. These macro definitions are +// likewise unsigned values (uint64_t) but for this particular key, they are +// best interpreted as signed values (int64_t). "Lower-than-default quality" +// and "higher-than-default quality", as signed values, are -1 and +1. +// +// See doc/note/quirks.md for some more discussion about trade-offs. +#define WUFFS_BASE__QUIRK_QUALITY__VALUE__LOWER_QUALITY UINT64_MAX +#define WUFFS_BASE__QUIRK_QUALITY__VALUE__HIGHER_QUALITY ((uint64_t)1) + // ---------------- Ranges and Rects // See https://github.com/google/wuffs/blob/main/doc/note/ranges-and-rects.md @@ -3107,8 +3204,7 @@ wuffs_base__slice_u8__writer(wuffs_base__slice_u8 s) { static inline wuffs_base__io_buffer // wuffs_base__empty_io_buffer(void) { wuffs_base__io_buffer ret; - ret.data.ptr = wuffs_base__strip_const_from_u8_ptr( - &wuffs_private_impl__placeholder_u8_with_non_null_address); + ret.data.ptr = NULL; ret.data.len = 0; ret.meta.wi = 0; ret.meta.ri = 0; @@ -3204,7 +3300,7 @@ wuffs_base__io_buffer__reader_length(const wuffs_base__io_buffer* buf) { static inline uint8_t* // wuffs_base__io_buffer__reader_pointer(const wuffs_base__io_buffer* buf) { - return buf ? (buf->data.ptr + buf->meta.ri) : NULL; + return (buf && buf->data.ptr) ? (buf->data.ptr + buf->meta.ri) : NULL; } static inline uint64_t // @@ -3214,7 +3310,8 @@ wuffs_base__io_buffer__reader_position(const wuffs_base__io_buffer* buf) { static inline wuffs_base__slice_u8 // wuffs_base__io_buffer__reader_slice(const wuffs_base__io_buffer* buf) { - return buf ? wuffs_base__make_slice_u8(buf->data.ptr + buf->meta.ri, + return (buf && buf->data.ptr) + ? wuffs_base__make_slice_u8(buf->data.ptr + buf->meta.ri, buf->meta.wi - buf->meta.ri) : wuffs_base__empty_slice_u8(); } @@ -3226,7 +3323,7 @@ wuffs_base__io_buffer__writer_length(const wuffs_base__io_buffer* buf) { static inline uint8_t* // wuffs_base__io_buffer__writer_pointer(const wuffs_base__io_buffer* buf) { - return buf ? (buf->data.ptr + buf->meta.wi) : NULL; + return (buf && buf->data.ptr) ? (buf->data.ptr + buf->meta.wi) : NULL; } static inline uint64_t // @@ -3236,7 +3333,8 @@ wuffs_base__io_buffer__writer_position(const wuffs_base__io_buffer* buf) { static inline wuffs_base__slice_u8 // wuffs_base__io_buffer__writer_slice(const wuffs_base__io_buffer* buf) { - return buf ? wuffs_base__make_slice_u8(buf->data.ptr + buf->meta.wi, + return (buf && buf->data.ptr) + ? wuffs_base__make_slice_u8(buf->data.ptr + buf->meta.wi, buf->data.len - buf->meta.wi) : wuffs_base__empty_slice_u8(); } @@ -3331,49 +3429,53 @@ wuffs_base__make_token(uint64_t repr) { // -------- +// clang-format off + +// -------- + #define WUFFS_BASE__TOKEN__LENGTH__MAX_INCL 0xFFFF -#define WUFFS_BASE__TOKEN__VALUE__SHIFT 17 -#define WUFFS_BASE__TOKEN__VALUE_EXTENSION__SHIFT 17 -#define WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT 42 -#define WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT 17 +#define WUFFS_BASE__TOKEN__VALUE__SHIFT 17 +#define WUFFS_BASE__TOKEN__VALUE_EXTENSION__SHIFT 17 +#define WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT 42 +#define WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT 17 #define WUFFS_BASE__TOKEN__VALUE_BASE_CATEGORY__SHIFT 38 -#define WUFFS_BASE__TOKEN__VALUE_BASE_DETAIL__SHIFT 17 -#define WUFFS_BASE__TOKEN__CONTINUED__SHIFT 16 -#define WUFFS_BASE__TOKEN__LENGTH__SHIFT 0 +#define WUFFS_BASE__TOKEN__VALUE_BASE_DETAIL__SHIFT 17 +#define WUFFS_BASE__TOKEN__CONTINUED__SHIFT 16 +#define WUFFS_BASE__TOKEN__LENGTH__SHIFT 0 -#define WUFFS_BASE__TOKEN__VALUE_EXTENSION__NUM_BITS 46 +#define WUFFS_BASE__TOKEN__VALUE_EXTENSION__NUM_BITS 46 // -------- -#define WUFFS_BASE__TOKEN__VBC__FILLER 0 -#define WUFFS_BASE__TOKEN__VBC__STRUCTURE 1 -#define WUFFS_BASE__TOKEN__VBC__STRING 2 -#define WUFFS_BASE__TOKEN__VBC__UNICODE_CODE_POINT 3 -#define WUFFS_BASE__TOKEN__VBC__LITERAL 4 -#define WUFFS_BASE__TOKEN__VBC__NUMBER 5 -#define WUFFS_BASE__TOKEN__VBC__INLINE_INTEGER_SIGNED 6 +#define WUFFS_BASE__TOKEN__VBC__FILLER 0 +#define WUFFS_BASE__TOKEN__VBC__STRUCTURE 1 +#define WUFFS_BASE__TOKEN__VBC__STRING 2 +#define WUFFS_BASE__TOKEN__VBC__UNICODE_CODE_POINT 3 +#define WUFFS_BASE__TOKEN__VBC__LITERAL 4 +#define WUFFS_BASE__TOKEN__VBC__NUMBER 5 +#define WUFFS_BASE__TOKEN__VBC__INLINE_INTEGER_SIGNED 6 #define WUFFS_BASE__TOKEN__VBC__INLINE_INTEGER_UNSIGNED 7 // -------- -#define WUFFS_BASE__TOKEN__VBD__FILLER__PUNCTUATION 0x00001 +#define WUFFS_BASE__TOKEN__VBD__FILLER__PUNCTUATION 0x00001 #define WUFFS_BASE__TOKEN__VBD__FILLER__COMMENT_BLOCK 0x00002 -#define WUFFS_BASE__TOKEN__VBD__FILLER__COMMENT_LINE 0x00004 +#define WUFFS_BASE__TOKEN__VBD__FILLER__COMMENT_LINE 0x00004 // COMMENT_ANY is a bit-wise or of COMMENT_BLOCK AND COMMENT_LINE. -#define WUFFS_BASE__TOKEN__VBD__FILLER__COMMENT_ANY 0x00006 +#define WUFFS_BASE__TOKEN__VBD__FILLER__COMMENT_ANY 0x00006 // -------- -#define WUFFS_BASE__TOKEN__VBD__STRUCTURE__PUSH 0x00001 -#define WUFFS_BASE__TOKEN__VBD__STRUCTURE__POP 0x00002 +#define WUFFS_BASE__TOKEN__VBD__STRUCTURE__PUSH 0x00001 +#define WUFFS_BASE__TOKEN__VBD__STRUCTURE__POP 0x00002 #define WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_NONE 0x00010 #define WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_LIST 0x00020 #define WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_DICT 0x00040 -#define WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_NONE 0x01000 -#define WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_LIST 0x02000 -#define WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_DICT 0x04000 +#define WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_NONE 0x01000 +#define WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_LIST 0x02000 +#define WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_DICT 0x04000 // -------- @@ -3393,11 +3495,11 @@ wuffs_base__make_token(uint64_t repr) { // // The lack of any particular bit is conservative: it is valid for all-ASCII // strings, in a single- or multi-token chain, to have none of these bits set. -#define WUFFS_BASE__TOKEN__VBD__STRING__DEFINITELY_UTF_8 0x00001 -#define WUFFS_BASE__TOKEN__VBD__STRING__CHAIN_MUST_BE_UTF_8 0x00002 +#define WUFFS_BASE__TOKEN__VBD__STRING__DEFINITELY_UTF_8 0x00001 +#define WUFFS_BASE__TOKEN__VBD__STRING__CHAIN_MUST_BE_UTF_8 0x00002 #define WUFFS_BASE__TOKEN__VBD__STRING__CHAIN_SHOULD_BE_UTF_8 0x00004 -#define WUFFS_BASE__TOKEN__VBD__STRING__DEFINITELY_ASCII 0x00010 -#define WUFFS_BASE__TOKEN__VBD__STRING__CHAIN_MUST_BE_ASCII 0x00020 +#define WUFFS_BASE__TOKEN__VBD__STRING__DEFINITELY_ASCII 0x00010 +#define WUFFS_BASE__TOKEN__VBD__STRING__CHAIN_MUST_BE_ASCII 0x00020 #define WUFFS_BASE__TOKEN__VBD__STRING__CHAIN_SHOULD_BE_ASCII 0x00040 // CONVERT_D_DST_S_SRC means that multiples of S source bytes (possibly padded) @@ -3412,22 +3514,22 @@ wuffs_base__make_token(uint64_t repr) { // When src is the empty string, multiple conversion algorithms are applicable // (so these bits are not necessarily mutually exclusive), all producing the // same empty dst string. -#define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_0_DST_1_SRC_DROP 0x00100 -#define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_1_DST_1_SRC_COPY 0x00200 +#define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_0_DST_1_SRC_DROP 0x00100 +#define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_1_DST_1_SRC_COPY 0x00200 #define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_1_DST_2_SRC_HEXADECIMAL 0x00400 #define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_1_DST_4_SRC_BACKSLASH_X 0x00800 #define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_3_DST_4_SRC_BASE_64_STD 0x01000 #define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_3_DST_4_SRC_BASE_64_URL 0x02000 -#define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_4_DST_5_SRC_ASCII_85 0x04000 +#define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_4_DST_5_SRC_ASCII_85 0x04000 #define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_5_DST_8_SRC_BASE_32_HEX 0x08000 #define WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_5_DST_8_SRC_BASE_32_STD 0x10000 // -------- #define WUFFS_BASE__TOKEN__VBD__LITERAL__UNDEFINED 0x00001 -#define WUFFS_BASE__TOKEN__VBD__LITERAL__NULL 0x00002 -#define WUFFS_BASE__TOKEN__VBD__LITERAL__FALSE 0x00004 -#define WUFFS_BASE__TOKEN__VBD__LITERAL__TRUE 0x00008 +#define WUFFS_BASE__TOKEN__VBD__LITERAL__NULL 0x00002 +#define WUFFS_BASE__TOKEN__VBD__LITERAL__FALSE 0x00004 +#define WUFFS_BASE__TOKEN__VBD__LITERAL__TRUE 0x00008 // -------- @@ -3440,8 +3542,8 @@ wuffs_base__make_token(uint64_t repr) { // For a source string of "+123" or "-0x9A", only the first two are valid. // // For a source string of "123.", only the first one is valid. -#define WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_FLOATING_POINT 0x00001 -#define WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_INTEGER_SIGNED 0x00002 +#define WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_FLOATING_POINT 0x00001 +#define WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_INTEGER_SIGNED 0x00002 #define WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_INTEGER_UNSIGNED 0x00004 #define WUFFS_BASE__TOKEN__VBD__NUMBER__CONTENT_NEG_INF 0x00010 @@ -3453,11 +3555,15 @@ wuffs_base__make_token(uint64_t repr) { // "300", which are big-endian, little-endian or text. For binary formats, the // token length (after adjusting for FORMAT_IGNORE_ETC) discriminates // e.g. u16 little-endian vs u32 little-endian. -#define WUFFS_BASE__TOKEN__VBD__NUMBER__FORMAT_BINARY_BIG_ENDIAN 0x00100 +#define WUFFS_BASE__TOKEN__VBD__NUMBER__FORMAT_BINARY_BIG_ENDIAN 0x00100 #define WUFFS_BASE__TOKEN__VBD__NUMBER__FORMAT_BINARY_LITTLE_ENDIAN 0x00200 -#define WUFFS_BASE__TOKEN__VBD__NUMBER__FORMAT_TEXT 0x00400 +#define WUFFS_BASE__TOKEN__VBD__NUMBER__FORMAT_TEXT 0x00400 -#define WUFFS_BASE__TOKEN__VBD__NUMBER__FORMAT_IGNORE_FIRST_BYTE 0x01000 +#define WUFFS_BASE__TOKEN__VBD__NUMBER__FORMAT_IGNORE_FIRST_BYTE 0x01000 + +// -------- + +// clang-format on // -------- @@ -3569,9 +3675,6 @@ wuffs_base__token::length() const { // -------- -extern const wuffs_base__token // - wuffs_private_impl__placeholder_token_with_non_null_address; - #if defined(__GNUC__) #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wcast-qual" @@ -3601,8 +3704,7 @@ wuffs_base__make_slice_token(wuffs_base__token* ptr, size_t len) { static inline wuffs_base__slice_token // wuffs_base__empty_slice_token(void) { wuffs_base__slice_token ret; - ret.ptr = wuffs_base__strip_const_from_token_ptr( - &wuffs_private_impl__placeholder_token_with_non_null_address); + ret.ptr = NULL; ret.len = 0; return ret; } @@ -3691,8 +3793,7 @@ wuffs_base__slice_token__writer(wuffs_base__slice_token s) { static inline wuffs_base__token_buffer // wuffs_base__empty_token_buffer(void) { wuffs_base__token_buffer ret; - ret.data.ptr = wuffs_base__strip_const_from_token_ptr( - &wuffs_private_impl__placeholder_token_with_non_null_address); + ret.data.ptr = NULL; ret.data.len = 0; ret.meta.wi = 0; ret.meta.ri = 0; @@ -3900,12 +4001,12 @@ wuffs_base__token_buffer::writer_token_position() const { // // You can pass the C stdlib's malloc as the malloc_func. // -// It returns an empty slice (containing a NULL ptr field) if (num_uxx * -// sizeof(uintxx_t)) would overflow SIZE_MAX. +// It returns an empty slice (containing a NULL ptr field) if num_uxx is zero +// or if (num_uxx * sizeof(uintxx_t)) would overflow SIZE_MAX. static inline wuffs_base__slice_u8 // wuffs_base__malloc_slice_u8(void* (*malloc_func)(size_t), uint64_t num_u8) { - if (malloc_func && (num_u8 <= (SIZE_MAX / sizeof(uint8_t)))) { + if (malloc_func && num_u8 && (num_u8 <= (SIZE_MAX / sizeof(uint8_t)))) { void* p = (*malloc_func)((size_t)(num_u8 * sizeof(uint8_t))); if (p) { return wuffs_base__make_slice_u8((uint8_t*)(p), (size_t)num_u8); @@ -3916,7 +4017,7 @@ wuffs_base__malloc_slice_u8(void* (*malloc_func)(size_t), uint64_t num_u8) { static inline wuffs_base__slice_u16 // wuffs_base__malloc_slice_u16(void* (*malloc_func)(size_t), uint64_t num_u16) { - if (malloc_func && (num_u16 <= (SIZE_MAX / sizeof(uint16_t)))) { + if (malloc_func && num_u16 && (num_u16 <= (SIZE_MAX / sizeof(uint16_t)))) { void* p = (*malloc_func)((size_t)(num_u16 * sizeof(uint16_t))); if (p) { return wuffs_base__make_slice_u16((uint16_t*)(p), (size_t)num_u16); @@ -3927,7 +4028,7 @@ wuffs_base__malloc_slice_u16(void* (*malloc_func)(size_t), uint64_t num_u16) { static inline wuffs_base__slice_u32 // wuffs_base__malloc_slice_u32(void* (*malloc_func)(size_t), uint64_t num_u32) { - if (malloc_func && (num_u32 <= (SIZE_MAX / sizeof(uint32_t)))) { + if (malloc_func && num_u32 && (num_u32 <= (SIZE_MAX / sizeof(uint32_t)))) { void* p = (*malloc_func)((size_t)(num_u32 * sizeof(uint32_t))); if (p) { return wuffs_base__make_slice_u32((uint32_t*)(p), (size_t)num_u32); @@ -3938,7 +4039,7 @@ wuffs_base__malloc_slice_u32(void* (*malloc_func)(size_t), uint64_t num_u32) { static inline wuffs_base__slice_u64 // wuffs_base__malloc_slice_u64(void* (*malloc_func)(size_t), uint64_t num_u64) { - if (malloc_func && (num_u64 <= (SIZE_MAX / sizeof(uint64_t)))) { + if (malloc_func && num_u64 && (num_u64 <= (SIZE_MAX / sizeof(uint64_t)))) { void* p = (*malloc_func)((size_t)(num_u64 * sizeof(uint64_t))); if (p) { return wuffs_base__make_slice_u64((uint64_t*)(p), (size_t)num_u64); @@ -4008,6 +4109,26 @@ wuffs_base__color_u32_argb_premul__as__color_u8_gray( return (uint8_t)(weighted_average >> 24); } +static inline uint16_t // +wuffs_base__color_u32_argb_premul__as__color_u16_alpha_gray_nonpremul( + wuffs_base__color_u32_argb_premul c) { + uint32_t a = 0xFF & (c >> 24); + if (a == 0) { + return 0; + } + uint32_t a16 = a * 0x101; + + uint32_t cr = 0xFF & (c >> 16); + cr = (cr * (0x101 * 0xFFFF)) / a16; + uint32_t cg = 0xFF & (c >> 8); + cg = (cg * (0x101 * 0xFFFF)) / a16; + uint32_t cb = 0xFF & (c >> 0); + cb = (cb * (0x101 * 0xFFFF)) / a16; + + uint32_t weighted_average = (19595 * cr) + (38470 * cg) + (7471 * cb) + 32768; + return (uint16_t)((a16 & 0xFF00) | (weighted_average >> 24)); +} + static inline uint16_t // wuffs_base__color_u32_argb_premul__as__color_u16_gray( wuffs_base__color_u32_argb_premul c) { @@ -4118,6 +4239,46 @@ wuffs_base__color_u32_argb_premul__as__color_u64_argb_nonpremul( return (a16 << 48) | (r16 << 32) | (g16 << 16) | (b16 << 0); } +static inline uint8_t // +wuffs_base__color_u64_argb_premul__as__color_u8_gray(uint64_t argb_premul) { + uint32_t r16 = ((uint32_t)(0xFFFF & (argb_premul >> 32))); + uint32_t g16 = ((uint32_t)(0xFFFF & (argb_premul >> 16))); + uint32_t b16 = ((uint32_t)(0xFFFF & (argb_premul >> 0))); + + // These coefficients (the fractions 0.299, 0.587 and 0.114) are the same + // as those given by the JFIF specification. + // + // Note that 19595 + 38470 + 7471 equals 65536, also known as (1 << 16). We + // shift by 24, not just by 16, because the return value is 8-bit color, not + // 16-bit color. + uint32_t weighted_average = + (19595 * r16) + (38470 * g16) + (7471 * b16) + 32768; + return (uint8_t)(weighted_average >> 24); +} + +static inline uint8_t // +wuffs_base__color_u64_argb_nonpremul__as__color_u8_gray( + uint64_t argb_nonpremul) { + uint32_t a16 = ((uint32_t)(0xFFFF & (argb_nonpremul >> 48))); + + uint32_t r16 = ((uint32_t)(0xFFFF & (argb_nonpremul >> 32))); + r16 = (r16 * a16) / 0xFFFF; + uint32_t g16 = ((uint32_t)(0xFFFF & (argb_nonpremul >> 16))); + g16 = (g16 * a16) / 0xFFFF; + uint32_t b16 = ((uint32_t)(0xFFFF & (argb_nonpremul >> 0))); + b16 = (b16 * a16) / 0xFFFF; + + // These coefficients (the fractions 0.299, 0.587 and 0.114) are the same + // as those given by the JFIF specification. + // + // Note that 19595 + 38470 + 7471 equals 65536, also known as (1 << 16). We + // shift by 24, not just by 16, because the return value is 8-bit color, not + // 16-bit color. + uint32_t weighted_average = + (19595 * r16) + (38470 * g16) + (7471 * b16) + 32768; + return (uint8_t)(weighted_average >> 24); +} + static inline uint64_t // wuffs_base__color_u32__as__color_u64(uint32_t c) { uint64_t a16 = 0x101 * (0xFF & (c >> 24)); @@ -4240,6 +4401,20 @@ typedef uint32_t wuffs_base__pixel_alpha_transparency; // -------- +// wuffs_base__pixel_coloration is whether a pixel format's color model has no +// color (alpha only), gray color or rich (non-gray) color. Rich color includes +// RGB, BGR, YCC, YCCK, CMY and CMYK. +// +// Coloration does not capture the alpha aspect of the color model. It does not +// distinguish RGB from RGBA. +typedef uint32_t wuffs_base__pixel_coloration; + +#define WUFFS_BASE__PIXEL_COLORATION__NONE 0 +#define WUFFS_BASE__PIXEL_COLORATION__GRAY 1 +#define WUFFS_BASE__PIXEL_COLORATION__RICH 3 + +// -------- + // Deprecated: use WUFFS_BASE__PIXEL_FORMAT__NUM_PLANES_MAX_INCL. #define WUFFS_BASE__PIXEL_FORMAT__NUM_PLANES_MAX 4 @@ -4268,6 +4443,7 @@ typedef struct wuffs_base__pixel_format__struct { inline bool is_indexed() const; inline bool is_interleaved() const; inline bool is_planar() const; + inline uint32_t coloration() const; inline uint32_t num_planes() const; inline wuffs_base__pixel_alpha_transparency transparency() const; #endif // __cplusplus @@ -4284,47 +4460,51 @@ wuffs_base__make_pixel_format(uint32_t repr) { // Common 8-bit-depth pixel formats. This list is not exhaustive; not all valid // wuffs_base__pixel_format values are present. -#define WUFFS_BASE__PIXEL_FORMAT__INVALID 0x00000000 +// clang-format off + +#define WUFFS_BASE__PIXEL_FORMAT__INVALID 0x00000000 -#define WUFFS_BASE__PIXEL_FORMAT__A 0x02000008 +#define WUFFS_BASE__PIXEL_FORMAT__A 0x02000008 -#define WUFFS_BASE__PIXEL_FORMAT__Y 0x20000008 -#define WUFFS_BASE__PIXEL_FORMAT__Y_16LE 0x2000000B -#define WUFFS_BASE__PIXEL_FORMAT__Y_16BE 0x2010000B -#define WUFFS_BASE__PIXEL_FORMAT__YA_NONPREMUL 0x21000008 -#define WUFFS_BASE__PIXEL_FORMAT__YA_PREMUL 0x22000008 +#define WUFFS_BASE__PIXEL_FORMAT__Y 0x20000008 +#define WUFFS_BASE__PIXEL_FORMAT__Y_16LE 0x2000000B +#define WUFFS_BASE__PIXEL_FORMAT__Y_16BE 0x2010000B +#define WUFFS_BASE__PIXEL_FORMAT__YA_NONPREMUL 0x21000088 +#define WUFFS_BASE__PIXEL_FORMAT__YA_PREMUL 0x22000088 -#define WUFFS_BASE__PIXEL_FORMAT__YCBCR 0x40020888 -#define WUFFS_BASE__PIXEL_FORMAT__YCBCRA_NONPREMUL 0x41038888 -#define WUFFS_BASE__PIXEL_FORMAT__YCBCRK 0x50038888 +#define WUFFS_BASE__PIXEL_FORMAT__YCBCR 0x40020888 +#define WUFFS_BASE__PIXEL_FORMAT__YCBCRA_NONPREMUL 0x41038888 +#define WUFFS_BASE__PIXEL_FORMAT__YCBCRK 0x50038888 -#define WUFFS_BASE__PIXEL_FORMAT__YCOCG 0x60020888 -#define WUFFS_BASE__PIXEL_FORMAT__YCOCGA_NONPREMUL 0x61038888 -#define WUFFS_BASE__PIXEL_FORMAT__YCOCGK 0x70038888 +#define WUFFS_BASE__PIXEL_FORMAT__YCOCG 0x60020888 +#define WUFFS_BASE__PIXEL_FORMAT__YCOCGA_NONPREMUL 0x61038888 +#define WUFFS_BASE__PIXEL_FORMAT__YCOCGK 0x70038888 -#define WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL 0x81040008 -#define WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL 0x82040008 -#define WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY 0x83040008 +#define WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL 0x81040008 +#define WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL 0x82040008 +#define WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY 0x83040008 -#define WUFFS_BASE__PIXEL_FORMAT__BGR_565 0x80000565 -#define WUFFS_BASE__PIXEL_FORMAT__BGR 0x80000888 -#define WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL 0x81008888 -#define WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE 0x8100BBBB -#define WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL 0x82008888 -#define WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL_4X16LE 0x8200BBBB -#define WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY 0x83008888 -#define WUFFS_BASE__PIXEL_FORMAT__BGRX 0x90008888 +#define WUFFS_BASE__PIXEL_FORMAT__BGR_565 0x80000565 +#define WUFFS_BASE__PIXEL_FORMAT__BGR 0x80000888 +#define WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL 0x81008888 +#define WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE 0x8100BBBB +#define WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL 0x82008888 +#define WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL_4X16LE 0x8200BBBB +#define WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY 0x83008888 +#define WUFFS_BASE__PIXEL_FORMAT__BGRX 0x90008888 -#define WUFFS_BASE__PIXEL_FORMAT__RGB 0xA0000888 -#define WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL 0xA1008888 -#define WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL_4X16LE 0xA100BBBB -#define WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL 0xA2008888 -#define WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL_4X16LE 0xA200BBBB -#define WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY 0xA3008888 -#define WUFFS_BASE__PIXEL_FORMAT__RGBX 0xB0008888 +#define WUFFS_BASE__PIXEL_FORMAT__RGB 0xA0000888 +#define WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL 0xA1008888 +#define WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL_4X16LE 0xA100BBBB +#define WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL 0xA2008888 +#define WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL_4X16LE 0xA200BBBB +#define WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY 0xA3008888 +#define WUFFS_BASE__PIXEL_FORMAT__RGBX 0xB0008888 -#define WUFFS_BASE__PIXEL_FORMAT__CMY 0xC0020888 -#define WUFFS_BASE__PIXEL_FORMAT__CMYK 0xD0038888 +#define WUFFS_BASE__PIXEL_FORMAT__CMY 0xC0020888 +#define WUFFS_BASE__PIXEL_FORMAT__CMYK 0xD0038888 + +// clang-format on extern const uint32_t wuffs_private_impl__pixel_format__bits_per_channel[16]; @@ -4370,6 +4550,12 @@ wuffs_base__pixel_format__is_planar(const wuffs_base__pixel_format* f) { return ((f->repr >> 16) & 0x03) != 0; } +static inline uint32_t // +wuffs_base__pixel_format__coloration(const wuffs_base__pixel_format* f) { + uint32_t n = (f->repr) >> 29; + return (n <= 1) ? n : 3; +} + static inline uint32_t // wuffs_base__pixel_format__num_planes(const wuffs_base__pixel_format* f) { return ((f->repr >> 16) & 0x03) + 1; @@ -4412,6 +4598,11 @@ wuffs_base__pixel_format::is_planar() const { return wuffs_base__pixel_format__is_planar(this); } +inline uint32_t // +wuffs_base__pixel_format::coloration() const { + return wuffs_base__pixel_format__coloration(this); +} + inline uint32_t // wuffs_base__pixel_format::num_planes() const { return wuffs_base__pixel_format__num_planes(this); @@ -4565,15 +4756,20 @@ wuffs_base__pixel_config__set(wuffs_base__pixel_config* c, return; } if (pixfmt_repr) { - uint64_t wh = ((uint64_t)width) * ((uint64_t)height); - // TODO: handle things other than 1 byte per pixel. - if (wh <= ((uint64_t)SIZE_MAX)) { + do { +#if SIZE_MAX < 0xFFFFFFFFFFFFFFFFull + uint64_t wh = ((uint64_t)width) * ((uint64_t)height); + // TODO: handle things other than 1 byte per pixel. + if (wh > ((uint64_t)SIZE_MAX)) { + break; + } +#endif c->private_impl.pixfmt.repr = pixfmt_repr; c->private_impl.pixsub.repr = pixsub_repr; c->private_impl.width = width; c->private_impl.height = height; return; - } + } while (0); } c->private_impl.pixfmt.repr = 0; @@ -7859,7 +8055,7 @@ extern const char wuffs_cbor__error__unsupported_recursion_depth[]; #define WUFFS_CBOR__DECODER_SRC_IO_BUFFER_LENGTH_MIN_INCL 9u -#define WUFFS_CBOR__TOKEN_VALUE_MAJOR 787997u +#define WUFFS_CBOR__TOKEN_VALUE_MAJOR 731642u #define WUFFS_CBOR__TOKEN_VALUE_MINOR__DETAIL_MASK 262143u @@ -8423,6 +8619,10 @@ struct wuffs_crc64__ecma_hasher__struct { wuffs_base__vtable null_vtable; uint64_t f_state; + + wuffs_base__empty_struct (*choosy_up)( + wuffs_crc64__ecma_hasher* self, + wuffs_base__slice_u8 a_x); } private_impl; #ifdef __cplusplus @@ -8828,6 +9028,372 @@ struct wuffs_deflate__decoder__struct { #endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__DEFLATE) || defined(WUFFS_NONMONOLITHIC) +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ETC2) || defined(WUFFS_NONMONOLITHIC) + +// ---------------- Status Codes + +extern const char wuffs_etc2__error__bad_header[]; +extern const char wuffs_etc2__error__truncated_input[]; +extern const char wuffs_etc2__error__unsupported_etc2_file[]; + +// ---------------- Public Consts + +#define WUFFS_ETC2__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u + +// ---------------- Struct Declarations + +typedef struct wuffs_etc2__decoder__struct wuffs_etc2__decoder; + +#ifdef __cplusplus +extern "C" { +#endif + +// ---------------- Public Initializer Prototypes + +// For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, +// etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". +// +// Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. +// Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_etc2__decoder__initialize( + wuffs_etc2__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options); + +size_t +sizeof__wuffs_etc2__decoder(void); + +// ---------------- Allocs + +// These functions allocate and initialize Wuffs structs. They return NULL if +// memory allocation fails. If they return non-NULL, there is no need to call +// wuffs_foo__bar__initialize, but the caller is responsible for eventually +// calling free on the returned pointer. That pointer is effectively a C++ +// std::unique_ptr. + +wuffs_etc2__decoder* +wuffs_etc2__decoder__alloc(void); + +static inline wuffs_base__image_decoder* +wuffs_etc2__decoder__alloc_as__wuffs_base__image_decoder(void) { + return (wuffs_base__image_decoder*)(wuffs_etc2__decoder__alloc()); +} + +// ---------------- Upcasts + +static inline wuffs_base__image_decoder* +wuffs_etc2__decoder__upcast_as__wuffs_base__image_decoder( + wuffs_etc2__decoder* p) { + return (wuffs_base__image_decoder*)p; +} + +// ---------------- Public Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_etc2__decoder__get_quirk( + const wuffs_etc2__decoder* self, + uint32_t a_key); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_etc2__decoder__set_quirk( + wuffs_etc2__decoder* self, + uint32_t a_key, + uint64_t a_value); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_etc2__decoder__decode_image_config( + wuffs_etc2__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_etc2__decoder__decode_frame_config( + wuffs_etc2__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_etc2__decoder__decode_frame( + wuffs_etc2__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_etc2__decoder__frame_dirty_rect( + const wuffs_etc2__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_etc2__decoder__num_animation_loops( + const wuffs_etc2__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_etc2__decoder__num_decoded_frame_configs( + const wuffs_etc2__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_etc2__decoder__num_decoded_frames( + const wuffs_etc2__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_etc2__decoder__restart_frame( + wuffs_etc2__decoder* self, + uint64_t a_index, + uint64_t a_io_position); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_etc2__decoder__set_report_metadata( + wuffs_etc2__decoder* self, + uint32_t a_fourcc, + bool a_report); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_etc2__decoder__tell_me_more( + wuffs_etc2__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_etc2__decoder__workbuf_len( + const wuffs_etc2__decoder* self); + +#ifdef __cplusplus +} // extern "C" +#endif + +// ---------------- Struct Definitions + +// These structs' fields, and the sizeof them, are private implementation +// details that aren't guaranteed to be stable across Wuffs versions. +// +// See https://en.wikipedia.org/wiki/Opaque_pointer#C + +#if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) + +struct wuffs_etc2__decoder__struct { + // Do not access the private_impl's or private_data's fields directly. There + // is no API/ABI compatibility or safety guarantee if you do so. Instead, use + // the wuffs_foo__bar__baz functions. + // + // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct + // can be stack allocated when WUFFS_IMPLEMENTATION is defined. + + struct { + uint32_t magic; + uint32_t active_coroutine; + wuffs_base__vtable vtable_for__wuffs_base__image_decoder; + wuffs_base__vtable null_vtable; + + uint32_t f_pixfmt; + uint32_t f_width; + uint32_t f_height; + uint8_t f_call_sequence; + bool f_srgb; + uint32_t f_num_buffered_blocks; + uint32_t f_dst_x; + uint32_t f_dst_y; + wuffs_base__pixel_swizzler f_swizzler; + + uint32_t p_decode_image_config; + uint32_t p_do_decode_image_config; + uint32_t p_decode_frame_config; + uint32_t p_do_decode_frame_config; + uint32_t p_decode_frame; + uint32_t p_do_decode_frame; + uint32_t p_from_src_to_colors; + } private_impl; + + struct { + uint64_t f_alphas[64]; + uint64_t f_colors[64]; + uint8_t f_buffer[4096]; + + struct { + uint16_t v_rounded_up_width; + uint16_t v_rounded_up_height; + uint64_t scratch; + } s_do_decode_image_config; + struct { + uint32_t v_remaining; + } s_do_decode_frame; + struct { + uint32_t v_bi; + uint64_t scratch; + } s_from_src_to_colors; + } private_data; + +#ifdef __cplusplus +#if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + using unique_ptr = std::unique_ptr; + + // On failure, the alloc_etc functions return nullptr. They don't throw. + + static inline unique_ptr + alloc() { + return unique_ptr(wuffs_etc2__decoder__alloc()); + } + + static inline wuffs_base__image_decoder::unique_ptr + alloc_as__wuffs_base__image_decoder() { + return wuffs_base__image_decoder::unique_ptr( + wuffs_etc2__decoder__alloc_as__wuffs_base__image_decoder()); + } +#endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + +#if defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + // Disallow constructing or copying an object via standard C++ mechanisms, + // e.g. the "new" operator, as this struct is intentionally opaque. Its total + // size and field layout is not part of the public, stable, memory-safe API. + // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and + // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as + // their first argument) rather than tweaking bar.private_impl.qux fields. + // + // In C, we can just leave wuffs_foo__bar as an incomplete type (unless + // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in + // order to provide convenience methods. These forward on "this", so that you + // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". + wuffs_etc2__decoder__struct() = delete; + wuffs_etc2__decoder__struct(const wuffs_etc2__decoder__struct&) = delete; + wuffs_etc2__decoder__struct& operator=( + const wuffs_etc2__decoder__struct&) = delete; +#endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + +#if !defined(WUFFS_IMPLEMENTATION) + // As above, the size of the struct is not part of the public API, and unless + // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap + // allocated, not stack allocated. Its size is not intended to be known at + // compile time, but it is unfortunately divulged as a side effect of + // defining C++ convenience methods. Use "sizeof__T()", calling the function, + // instead of "sizeof T", invoking the operator. To make the two values + // different, so that passing the latter will be rejected by the initialize + // function, we add an arbitrary amount of dead weight. + uint8_t dead_weight[123000000]; // 123 MB. +#endif // !defined(WUFFS_IMPLEMENTATION) + + inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT + initialize( + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options) { + return wuffs_etc2__decoder__initialize( + this, sizeof_star_self, wuffs_version, options); + } + + inline wuffs_base__image_decoder* + upcast_as__wuffs_base__image_decoder() { + return (wuffs_base__image_decoder*)this; + } + + inline uint64_t + get_quirk( + uint32_t a_key) const { + return wuffs_etc2__decoder__get_quirk(this, a_key); + } + + inline wuffs_base__status + set_quirk( + uint32_t a_key, + uint64_t a_value) { + return wuffs_etc2__decoder__set_quirk(this, a_key, a_value); + } + + inline wuffs_base__status + decode_image_config( + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + return wuffs_etc2__decoder__decode_image_config(this, a_dst, a_src); + } + + inline wuffs_base__status + decode_frame_config( + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + return wuffs_etc2__decoder__decode_frame_config(this, a_dst, a_src); + } + + inline wuffs_base__status + decode_frame( + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + return wuffs_etc2__decoder__decode_frame(this, a_dst, a_src, a_blend, a_workbuf, a_opts); + } + + inline wuffs_base__rect_ie_u32 + frame_dirty_rect() const { + return wuffs_etc2__decoder__frame_dirty_rect(this); + } + + inline uint32_t + num_animation_loops() const { + return wuffs_etc2__decoder__num_animation_loops(this); + } + + inline uint64_t + num_decoded_frame_configs() const { + return wuffs_etc2__decoder__num_decoded_frame_configs(this); + } + + inline uint64_t + num_decoded_frames() const { + return wuffs_etc2__decoder__num_decoded_frames(this); + } + + inline wuffs_base__status + restart_frame( + uint64_t a_index, + uint64_t a_io_position) { + return wuffs_etc2__decoder__restart_frame(this, a_index, a_io_position); + } + + inline wuffs_base__empty_struct + set_report_metadata( + uint32_t a_fourcc, + bool a_report) { + return wuffs_etc2__decoder__set_report_metadata(this, a_fourcc, a_report); + } + + inline wuffs_base__status + tell_me_more( + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + return wuffs_etc2__decoder__tell_me_more(this, a_dst, a_minfo, a_src); + } + + inline wuffs_base__range_ii_u64 + workbuf_len() const { + return wuffs_etc2__decoder__workbuf_len(this); + } + +#endif // __cplusplus +}; // struct wuffs_etc2__decoder__struct + +#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ETC2) || defined(WUFFS_NONMONOLITHIC) + #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__GIF) || defined(WUFFS_NONMONOLITHIC) // ---------------- Status Codes @@ -8845,19 +9411,19 @@ extern const char wuffs_gif__error__truncated_input[]; #define WUFFS_GIF__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u -#define WUFFS_GIF__QUIRK_DELAY_NUM_DECODED_FRAMES 1041635328u +#define WUFFS_GIF__QUIRK_DELAY_NUM_DECODED_FRAMES 983928832u -#define WUFFS_GIF__QUIRK_FIRST_FRAME_LOCAL_PALETTE_MEANS_BLACK_BACKGROUND 1041635329u +#define WUFFS_GIF__QUIRK_FIRST_FRAME_LOCAL_PALETTE_MEANS_BLACK_BACKGROUND 983928833u -#define WUFFS_GIF__QUIRK_HONOR_BACKGROUND_COLOR 1041635330u +#define WUFFS_GIF__QUIRK_HONOR_BACKGROUND_COLOR 983928834u -#define WUFFS_GIF__QUIRK_IGNORE_TOO_MUCH_PIXEL_DATA 1041635331u +#define WUFFS_GIF__QUIRK_IGNORE_TOO_MUCH_PIXEL_DATA 983928835u -#define WUFFS_GIF__QUIRK_IMAGE_BOUNDS_ARE_STRICT 1041635332u +#define WUFFS_GIF__QUIRK_IMAGE_BOUNDS_ARE_STRICT 983928836u -#define WUFFS_GIF__QUIRK_REJECT_EMPTY_FRAME 1041635333u +#define WUFFS_GIF__QUIRK_REJECT_EMPTY_FRAME 983928837u -#define WUFFS_GIF__QUIRK_REJECT_EMPTY_PALETTE 1041635334u +#define WUFFS_GIF__QUIRK_REJECT_EMPTY_PALETTE 983928838u // ---------------- Struct Declarations @@ -9106,8 +9672,7 @@ struct wuffs_gif__decoder__struct { uint64_t scratch; } s_skip_frame; struct { - uint8_t v_c[6]; - uint32_t v_i; + uint64_t scratch; } s_decode_header; struct { uint8_t v_flags; @@ -9437,8 +10002,8 @@ struct wuffs_gzip__decoder__struct { struct { uint8_t v_flags; - uint32_t v_checksum_got; - uint32_t v_decoded_length_got; + uint32_t v_checksum_have; + uint32_t v_decoded_length_have; uint32_t v_checksum_want; uint64_t scratch; } s_do_transform_io; @@ -9555,8 +10120,11 @@ extern const char wuffs_jpeg__error__bad_sof_marker[]; extern const char wuffs_jpeg__error__bad_sos_marker[]; extern const char wuffs_jpeg__error__bad_header[]; extern const char wuffs_jpeg__error__bad_marker[]; +extern const char wuffs_jpeg__error__bad_scan_count[]; extern const char wuffs_jpeg__error__missing_huffman_table[]; extern const char wuffs_jpeg__error__missing_quantization_table[]; +extern const char wuffs_jpeg__error__rejected_progressive_jpeg[]; +extern const char wuffs_jpeg__error__short_sos_bitstream[]; extern const char wuffs_jpeg__error__truncated_input[]; extern const char wuffs_jpeg__error__unsupported_arithmetic_coding[]; extern const char wuffs_jpeg__error__unsupported_color_model[]; @@ -9574,6 +10142,8 @@ extern const char wuffs_jpeg__error__unsupported_scan_count[]; #define WUFFS_JPEG__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 51552191232u +#define WUFFS_JPEG__QUIRK_REJECT_PROGRESSIVE_JPEGS 1162824704u + // ---------------- Struct Declarations typedef struct wuffs_jpeg__decoder__struct wuffs_jpeg__decoder; @@ -9799,6 +10369,13 @@ struct wuffs_jpeg__decoder__struct { uint32_t f_bitstream_ri; uint32_t f_bitstream_wi; bool f_bitstream_is_closed; + bool f_expect_multiple_scans; + bool f_use_lower_quality; + bool f_reject_progressive_jpegs; + bool f_swizzle_immediately; + wuffs_base__status f_swizzle_immediately_status; + uint32_t f_swizzle_immediately_b_offsets[10]; + uint32_t f_swizzle_immediately_c_offsets[5]; uint32_t f_bitstream_padding; uint16_t f_quant_tables[4][64]; uint16_t f_saved_quant_tables[4][64]; @@ -9834,6 +10411,7 @@ struct wuffs_jpeg__decoder__struct { uint32_t p_skip_past_the_next_restart_marker; uint32_t (*choosy_decode_mcu)( wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, wuffs_base__slice_u8 a_workbuf, uint32_t a_mx, uint32_t a_my); @@ -9842,6 +10420,7 @@ struct wuffs_jpeg__decoder__struct { struct { uint8_t f_bitstream_buffer[2048]; uint16_t f_mcu_blocks[10][64]; + uint8_t f_swizzle_immediately_buffer[640]; uint8_t f_swizzle_ycck_scratch_buffer_2k[2048]; uint8_t f_dht_temp_counts[16]; uint8_t f_dht_temp_bit_lengths[256]; @@ -10061,45 +10640,45 @@ extern const char wuffs_json__error__unsupported_recursion_depth[]; #define WUFFS_JSON__DECODER_SRC_IO_BUFFER_LENGTH_MIN_INCL 100u -#define WUFFS_JSON__QUIRK_ALLOW_ASCII_CONTROL_CODES 1225364480u +#define WUFFS_JSON__QUIRK_ALLOW_ASCII_CONTROL_CODES 1167656960u -#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_A 1225364481u +#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_A 1167656961u -#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_CAPITAL_U 1225364482u +#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_CAPITAL_U 1167656962u -#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_E 1225364483u +#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_E 1167656963u -#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_NEW_LINE 1225364484u +#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_NEW_LINE 1167656964u -#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_QUESTION_MARK 1225364485u +#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_QUESTION_MARK 1167656965u -#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_SINGLE_QUOTE 1225364486u +#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_SINGLE_QUOTE 1167656966u -#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_V 1225364487u +#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_V 1167656967u -#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_X_AS_CODE_POINTS 1225364489u +#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_X_AS_CODE_POINTS 1167656969u -#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_ZERO 1225364490u +#define WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_ZERO 1167656970u -#define WUFFS_JSON__QUIRK_ALLOW_COMMENT_BLOCK 1225364491u +#define WUFFS_JSON__QUIRK_ALLOW_COMMENT_BLOCK 1167656971u -#define WUFFS_JSON__QUIRK_ALLOW_COMMENT_LINE 1225364492u +#define WUFFS_JSON__QUIRK_ALLOW_COMMENT_LINE 1167656972u -#define WUFFS_JSON__QUIRK_ALLOW_EXTRA_COMMA 1225364493u +#define WUFFS_JSON__QUIRK_ALLOW_EXTRA_COMMA 1167656973u -#define WUFFS_JSON__QUIRK_ALLOW_INF_NAN_NUMBERS 1225364494u +#define WUFFS_JSON__QUIRK_ALLOW_INF_NAN_NUMBERS 1167656974u -#define WUFFS_JSON__QUIRK_ALLOW_LEADING_ASCII_RECORD_SEPARATOR 1225364495u +#define WUFFS_JSON__QUIRK_ALLOW_LEADING_ASCII_RECORD_SEPARATOR 1167656975u -#define WUFFS_JSON__QUIRK_ALLOW_LEADING_UNICODE_BYTE_ORDER_MARK 1225364496u +#define WUFFS_JSON__QUIRK_ALLOW_LEADING_UNICODE_BYTE_ORDER_MARK 1167656976u -#define WUFFS_JSON__QUIRK_ALLOW_TRAILING_FILLER 1225364497u +#define WUFFS_JSON__QUIRK_ALLOW_TRAILING_FILLER 1167656977u -#define WUFFS_JSON__QUIRK_EXPECT_TRAILING_NEW_LINE_OR_EOF 1225364498u +#define WUFFS_JSON__QUIRK_EXPECT_TRAILING_NEW_LINE_OR_EOF 1167656978u -#define WUFFS_JSON__QUIRK_JSON_POINTER_ALLOW_TILDE_N_TILDE_R_TILDE_T 1225364499u +#define WUFFS_JSON__QUIRK_JSON_POINTER_ALLOW_TILDE_N_TILDE_R_TILDE_T 1167656979u -#define WUFFS_JSON__QUIRK_REPLACE_INVALID_UNICODE 1225364500u +#define WUFFS_JSON__QUIRK_REPLACE_INVALID_UNICODE 1167656980u // ---------------- Struct Declarations @@ -10341,11 +10920,13 @@ extern const char wuffs_lzma__error__unsupported_properties[]; // ---------------- Public Consts -#define WUFFS_LZMA__DECODER_DST_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 4294967295u +#define WUFFS_LZMA__DECODER_DST_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0u + +#define WUFFS_LZMA__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 4294967568u -#define WUFFS_LZMA__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u +#define WUFFS_LZMA__QUIRK_ALLOW_NON_ZERO_INITIAL_BYTE 1290294272u -#define WUFFS_LZMA__QUIRK_FORMAT_EXTENSION 1348001792u +#define WUFFS_LZMA__QUIRK_FORMAT_EXTENSION 1290294273u // ---------------- Struct Declarations @@ -10462,16 +11043,34 @@ struct wuffs_lzma__decoder__struct { uint32_t f_pb; uint32_t f_format_extension; uint32_t f_dict_size; + uint32_t f_dict_workbuf_index; + uint32_t f_dict_seen; uint64_t f_decoded_length; uint64_t f_lzma2_encoded_length_have; uint64_t f_lzma2_encoded_length_want; bool f_lzma2_need_prob_reset; bool f_lzma2_need_properties; + bool f_lzma2_need_dict_reset; + bool f_prev_lzma2_chunk_was_uncompressed; + bool f_allow_non_zero_initial_byte; + bool f_end_of_chunk; + uint8_t f_stashed_bytes[2]; + uint32_t f_stashed_bits; + uint32_t f_stashed_range; + uint32_t f_stashed_state; + uint32_t f_stashed_rep0; + uint32_t f_stashed_rep1; + uint32_t f_stashed_rep2; + uint32_t f_stashed_rep3; + uint64_t f_stashed_pos; + uint64_t f_stashed_pos_end; uint32_t p_decode_bitstream_slow; uint32_t p_transform_io; uint32_t p_do_transform_io; uint32_t p_decode_bitstream; + uint32_t p_update_stashed_bytes; + uint32_t p_decode_optional_end_of_stream; } private_impl; struct { @@ -10502,15 +11101,17 @@ struct wuffs_lzma__decoder__struct { uint32_t v_rep3; uint32_t v_rep; uint64_t v_pos; + uint64_t v_pos_end; uint32_t v_lc; uint64_t v_lp_mask; uint64_t v_pb_mask; uint32_t v_tree_node; uint8_t v_prev_byte; - uint8_t v_match_byte; + uint32_t v_match_byte; uint32_t v_len_state; uint32_t v_slot; uint32_t v_len; + uint32_t v_lanl_offset; uint32_t v_num_extra_bits; uint32_t v_dist_extra_bits; uint32_t v_i; @@ -10519,10 +11120,12 @@ struct wuffs_lzma__decoder__struct { uint32_t v_index_small_dist_base; uint32_t v_index_small_dist_extra; uint32_t v_index_large_dist; + uint32_t v_dist; uint64_t scratch; } s_decode_bitstream_slow; struct { uint8_t v_header_byte; + uint32_t v_length; uint64_t scratch; } s_do_transform_io; } private_data; @@ -10627,6 +11230,248 @@ struct wuffs_lzma__decoder__struct { #endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZMA) || defined(WUFFS_NONMONOLITHIC) +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZIP) || defined(WUFFS_NONMONOLITHIC) + +// ---------------- Status Codes + +extern const char wuffs_lzip__error__bad_checksum[]; +extern const char wuffs_lzip__error__bad_footer[]; +extern const char wuffs_lzip__error__bad_header[]; +extern const char wuffs_lzip__error__truncated_input[]; + +// ---------------- Public Consts + +#define WUFFS_LZIP__DECODER_DST_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0u + +#define WUFFS_LZIP__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 4294967568u + +// ---------------- Struct Declarations + +typedef struct wuffs_lzip__decoder__struct wuffs_lzip__decoder; + +#ifdef __cplusplus +extern "C" { +#endif + +// ---------------- Public Initializer Prototypes + +// For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, +// etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". +// +// Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. +// Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_lzip__decoder__initialize( + wuffs_lzip__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options); + +size_t +sizeof__wuffs_lzip__decoder(void); + +// ---------------- Allocs + +// These functions allocate and initialize Wuffs structs. They return NULL if +// memory allocation fails. If they return non-NULL, there is no need to call +// wuffs_foo__bar__initialize, but the caller is responsible for eventually +// calling free on the returned pointer. That pointer is effectively a C++ +// std::unique_ptr. + +wuffs_lzip__decoder* +wuffs_lzip__decoder__alloc(void); + +static inline wuffs_base__io_transformer* +wuffs_lzip__decoder__alloc_as__wuffs_base__io_transformer(void) { + return (wuffs_base__io_transformer*)(wuffs_lzip__decoder__alloc()); +} + +// ---------------- Upcasts + +static inline wuffs_base__io_transformer* +wuffs_lzip__decoder__upcast_as__wuffs_base__io_transformer( + wuffs_lzip__decoder* p) { + return (wuffs_base__io_transformer*)p; +} + +// ---------------- Public Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_lzip__decoder__get_quirk( + const wuffs_lzip__decoder* self, + uint32_t a_key); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_lzip__decoder__set_quirk( + wuffs_lzip__decoder* self, + uint32_t a_key, + uint64_t a_value); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_lzip__decoder__dst_history_retain_length( + const wuffs_lzip__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_lzip__decoder__workbuf_len( + const wuffs_lzip__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_lzip__decoder__transform_io( + wuffs_lzip__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); + +#ifdef __cplusplus +} // extern "C" +#endif + +// ---------------- Struct Definitions + +// These structs' fields, and the sizeof them, are private implementation +// details that aren't guaranteed to be stable across Wuffs versions. +// +// See https://en.wikipedia.org/wiki/Opaque_pointer#C + +#if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) + +struct wuffs_lzip__decoder__struct { + // Do not access the private_impl's or private_data's fields directly. There + // is no API/ABI compatibility or safety guarantee if you do so. Instead, use + // the wuffs_foo__bar__baz functions. + // + // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct + // can be stack allocated when WUFFS_IMPLEMENTATION is defined. + + struct { + uint32_t magic; + uint32_t active_coroutine; + wuffs_base__vtable vtable_for__wuffs_base__io_transformer; + wuffs_base__vtable null_vtable; + + bool f_ignore_checksum; + uint64_t f_dsize_have; + uint64_t f_ssize_have; + + uint32_t p_transform_io; + uint32_t p_do_transform_io; + } private_impl; + + struct { + wuffs_crc32__ieee_hasher f_crc32; + wuffs_lzma__decoder f_lzma; + + struct { + uint64_t scratch; + } s_do_transform_io; + } private_data; + +#ifdef __cplusplus +#if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + using unique_ptr = std::unique_ptr; + + // On failure, the alloc_etc functions return nullptr. They don't throw. + + static inline unique_ptr + alloc() { + return unique_ptr(wuffs_lzip__decoder__alloc()); + } + + static inline wuffs_base__io_transformer::unique_ptr + alloc_as__wuffs_base__io_transformer() { + return wuffs_base__io_transformer::unique_ptr( + wuffs_lzip__decoder__alloc_as__wuffs_base__io_transformer()); + } +#endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + +#if defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + // Disallow constructing or copying an object via standard C++ mechanisms, + // e.g. the "new" operator, as this struct is intentionally opaque. Its total + // size and field layout is not part of the public, stable, memory-safe API. + // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and + // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as + // their first argument) rather than tweaking bar.private_impl.qux fields. + // + // In C, we can just leave wuffs_foo__bar as an incomplete type (unless + // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in + // order to provide convenience methods. These forward on "this", so that you + // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". + wuffs_lzip__decoder__struct() = delete; + wuffs_lzip__decoder__struct(const wuffs_lzip__decoder__struct&) = delete; + wuffs_lzip__decoder__struct& operator=( + const wuffs_lzip__decoder__struct&) = delete; +#endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + +#if !defined(WUFFS_IMPLEMENTATION) + // As above, the size of the struct is not part of the public API, and unless + // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap + // allocated, not stack allocated. Its size is not intended to be known at + // compile time, but it is unfortunately divulged as a side effect of + // defining C++ convenience methods. Use "sizeof__T()", calling the function, + // instead of "sizeof T", invoking the operator. To make the two values + // different, so that passing the latter will be rejected by the initialize + // function, we add an arbitrary amount of dead weight. + uint8_t dead_weight[123000000]; // 123 MB. +#endif // !defined(WUFFS_IMPLEMENTATION) + + inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT + initialize( + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options) { + return wuffs_lzip__decoder__initialize( + this, sizeof_star_self, wuffs_version, options); + } + + inline wuffs_base__io_transformer* + upcast_as__wuffs_base__io_transformer() { + return (wuffs_base__io_transformer*)this; + } + + inline uint64_t + get_quirk( + uint32_t a_key) const { + return wuffs_lzip__decoder__get_quirk(this, a_key); + } + + inline wuffs_base__status + set_quirk( + uint32_t a_key, + uint64_t a_value) { + return wuffs_lzip__decoder__set_quirk(this, a_key, a_value); + } + + inline wuffs_base__optional_u63 + dst_history_retain_length() const { + return wuffs_lzip__decoder__dst_history_retain_length(this); + } + + inline wuffs_base__range_ii_u64 + workbuf_len() const { + return wuffs_lzip__decoder__workbuf_len(this); + } + + inline wuffs_base__status + transform_io( + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + return wuffs_lzip__decoder__transform_io(this, a_dst, a_src, a_workbuf); + } + +#endif // __cplusplus +}; // struct wuffs_lzip__decoder__struct + +#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZIP) || defined(WUFFS_NONMONOLITHIC) + #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZW) || defined(WUFFS_NONMONOLITHIC) // ---------------- Status Codes @@ -10640,7 +11485,7 @@ extern const char wuffs_lzw__error__truncated_input[]; #define WUFFS_LZW__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u -#define WUFFS_LZW__QUIRK_LITERAL_WIDTH_PLUS_ONE 1348378624u +#define WUFFS_LZW__QUIRK_LITERAL_WIDTH_PLUS_ONE 1290672128u // ---------------- Struct Declarations @@ -11596,7 +12441,7 @@ extern const char wuffs_zlib__error__truncated_input[]; // ---------------- Public Consts -#define WUFFS_ZLIB__QUIRK_JUST_RAW_DEFLATE 2113790976u +#define WUFFS_ZLIB__QUIRK_JUST_RAW_DEFLATE 2056083456u #define WUFFS_ZLIB__DECODER_DST_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0u @@ -11729,7 +12574,7 @@ struct wuffs_zlib__decoder__struct { bool f_want_dictionary; bool f_quirks[1]; bool f_ignore_checksum; - uint32_t f_dict_id_got; + uint32_t f_dict_id_have; uint32_t f_dict_id_want; uint32_t p_transform_io; @@ -11742,7 +12587,7 @@ struct wuffs_zlib__decoder__struct { wuffs_deflate__decoder f_flate; struct { - uint32_t v_checksum_got; + uint32_t v_checksum_have; uint64_t scratch; } s_do_transform_io; } private_data; @@ -12361,253 +13206,21 @@ struct wuffs_png__decoder__struct { #endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__PNG) || defined(WUFFS_NONMONOLITHIC) -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__SHA256) || defined(WUFFS_NONMONOLITHIC) - -// ---------------- Status Codes - -// ---------------- Public Consts - -// ---------------- Struct Declarations - -typedef struct wuffs_sha256__hasher__struct wuffs_sha256__hasher; - -#ifdef __cplusplus -extern "C" { -#endif - -// ---------------- Public Initializer Prototypes - -// For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, -// etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". -// -// Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. -// Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. - -wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_sha256__hasher__initialize( - wuffs_sha256__hasher* self, - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options); - -size_t -sizeof__wuffs_sha256__hasher(void); - -// ---------------- Allocs - -// These functions allocate and initialize Wuffs structs. They return NULL if -// memory allocation fails. If they return non-NULL, there is no need to call -// wuffs_foo__bar__initialize, but the caller is responsible for eventually -// calling free on the returned pointer. That pointer is effectively a C++ -// std::unique_ptr. - -wuffs_sha256__hasher* -wuffs_sha256__hasher__alloc(void); - -static inline wuffs_base__hasher_bitvec256* -wuffs_sha256__hasher__alloc_as__wuffs_base__hasher_bitvec256(void) { - return (wuffs_base__hasher_bitvec256*)(wuffs_sha256__hasher__alloc()); -} - -// ---------------- Upcasts - -static inline wuffs_base__hasher_bitvec256* -wuffs_sha256__hasher__upcast_as__wuffs_base__hasher_bitvec256( - wuffs_sha256__hasher* p) { - return (wuffs_base__hasher_bitvec256*)p; -} - -// ---------------- Public Function Prototypes - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_sha256__hasher__get_quirk( - const wuffs_sha256__hasher* self, - uint32_t a_key); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_sha256__hasher__set_quirk( - wuffs_sha256__hasher* self, - uint32_t a_key, - uint64_t a_value); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_sha256__hasher__update( - wuffs_sha256__hasher* self, - wuffs_base__slice_u8 a_x); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__bitvec256 -wuffs_sha256__hasher__update_bitvec256( - wuffs_sha256__hasher* self, - wuffs_base__slice_u8 a_x); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__bitvec256 -wuffs_sha256__hasher__checksum_bitvec256( - const wuffs_sha256__hasher* self); - -#ifdef __cplusplus -} // extern "C" -#endif - -// ---------------- Struct Definitions - -// These structs' fields, and the sizeof them, are private implementation -// details that aren't guaranteed to be stable across Wuffs versions. -// -// See https://en.wikipedia.org/wiki/Opaque_pointer#C - -#if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) - -struct wuffs_sha256__hasher__struct { - // Do not access the private_impl's or private_data's fields directly. There - // is no API/ABI compatibility or safety guarantee if you do so. Instead, use - // the wuffs_foo__bar__baz functions. - // - // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct - // can be stack allocated when WUFFS_IMPLEMENTATION is defined. - - struct { - uint32_t magic; - uint32_t active_coroutine; - wuffs_base__vtable vtable_for__wuffs_base__hasher_bitvec256; - wuffs_base__vtable null_vtable; - - uint64_t f_length_modulo_u64; - bool f_length_overflows_u64; - uint8_t f_padding0; - uint8_t f_padding1; - uint8_t f_padding2; - uint32_t f_buf_len; - uint8_t f_buf_data[64]; - uint32_t f_h0; - uint32_t f_h1; - uint32_t f_h2; - uint32_t f_h3; - uint32_t f_h4; - uint32_t f_h5; - uint32_t f_h6; - uint32_t f_h7; - } private_impl; - -#ifdef __cplusplus -#if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) - using unique_ptr = std::unique_ptr; - - // On failure, the alloc_etc functions return nullptr. They don't throw. - - static inline unique_ptr - alloc() { - return unique_ptr(wuffs_sha256__hasher__alloc()); - } - - static inline wuffs_base__hasher_bitvec256::unique_ptr - alloc_as__wuffs_base__hasher_bitvec256() { - return wuffs_base__hasher_bitvec256::unique_ptr( - wuffs_sha256__hasher__alloc_as__wuffs_base__hasher_bitvec256()); - } -#endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) - -#if defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) - // Disallow constructing or copying an object via standard C++ mechanisms, - // e.g. the "new" operator, as this struct is intentionally opaque. Its total - // size and field layout is not part of the public, stable, memory-safe API. - // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and - // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as - // their first argument) rather than tweaking bar.private_impl.qux fields. - // - // In C, we can just leave wuffs_foo__bar as an incomplete type (unless - // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in - // order to provide convenience methods. These forward on "this", so that you - // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". - wuffs_sha256__hasher__struct() = delete; - wuffs_sha256__hasher__struct(const wuffs_sha256__hasher__struct&) = delete; - wuffs_sha256__hasher__struct& operator=( - const wuffs_sha256__hasher__struct&) = delete; -#endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) - -#if !defined(WUFFS_IMPLEMENTATION) - // As above, the size of the struct is not part of the public API, and unless - // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap - // allocated, not stack allocated. Its size is not intended to be known at - // compile time, but it is unfortunately divulged as a side effect of - // defining C++ convenience methods. Use "sizeof__T()", calling the function, - // instead of "sizeof T", invoking the operator. To make the two values - // different, so that passing the latter will be rejected by the initialize - // function, we add an arbitrary amount of dead weight. - uint8_t dead_weight[123000000]; // 123 MB. -#endif // !defined(WUFFS_IMPLEMENTATION) - - inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT - initialize( - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options) { - return wuffs_sha256__hasher__initialize( - this, sizeof_star_self, wuffs_version, options); - } - - inline wuffs_base__hasher_bitvec256* - upcast_as__wuffs_base__hasher_bitvec256() { - return (wuffs_base__hasher_bitvec256*)this; - } - - inline uint64_t - get_quirk( - uint32_t a_key) const { - return wuffs_sha256__hasher__get_quirk(this, a_key); - } - - inline wuffs_base__status - set_quirk( - uint32_t a_key, - uint64_t a_value) { - return wuffs_sha256__hasher__set_quirk(this, a_key, a_value); - } - - inline wuffs_base__empty_struct - update( - wuffs_base__slice_u8 a_x) { - return wuffs_sha256__hasher__update(this, a_x); - } - - inline wuffs_base__bitvec256 - update_bitvec256( - wuffs_base__slice_u8 a_x) { - return wuffs_sha256__hasher__update_bitvec256(this, a_x); - } - - inline wuffs_base__bitvec256 - checksum_bitvec256() const { - return wuffs_sha256__hasher__checksum_bitvec256(this); - } - -#endif // __cplusplus -}; // struct wuffs_sha256__hasher__struct - -#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) - -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__SHA256) || defined(WUFFS_NONMONOLITHIC) - -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__TGA) || defined(WUFFS_NONMONOLITHIC) +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__QOI) || defined(WUFFS_NONMONOLITHIC) // ---------------- Status Codes -extern const char wuffs_tga__error__bad_header[]; -extern const char wuffs_tga__error__bad_run_length_encoding[]; -extern const char wuffs_tga__error__truncated_input[]; -extern const char wuffs_tga__error__unsupported_tga_file[]; +extern const char wuffs_qoi__error__bad_footer[]; +extern const char wuffs_qoi__error__bad_header[]; +extern const char wuffs_qoi__error__truncated_input[]; // ---------------- Public Consts -#define WUFFS_TGA__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u +#define WUFFS_QOI__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u // ---------------- Struct Declarations -typedef struct wuffs_tga__decoder__struct wuffs_tga__decoder; +typedef struct wuffs_qoi__decoder__struct wuffs_qoi__decoder; #ifdef __cplusplus extern "C" { @@ -12622,14 +13235,14 @@ extern "C" { // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_tga__decoder__initialize( - wuffs_tga__decoder* self, +wuffs_qoi__decoder__initialize( + wuffs_qoi__decoder* self, size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options); size_t -sizeof__wuffs_tga__decoder(void); +sizeof__wuffs_qoi__decoder(void); // ---------------- Allocs @@ -12639,19 +13252,19 @@ sizeof__wuffs_tga__decoder(void); // calling free on the returned pointer. That pointer is effectively a C++ // std::unique_ptr. -wuffs_tga__decoder* -wuffs_tga__decoder__alloc(void); +wuffs_qoi__decoder* +wuffs_qoi__decoder__alloc(void); static inline wuffs_base__image_decoder* -wuffs_tga__decoder__alloc_as__wuffs_base__image_decoder(void) { - return (wuffs_base__image_decoder*)(wuffs_tga__decoder__alloc()); +wuffs_qoi__decoder__alloc_as__wuffs_base__image_decoder(void) { + return (wuffs_base__image_decoder*)(wuffs_qoi__decoder__alloc()); } // ---------------- Upcasts static inline wuffs_base__image_decoder* -wuffs_tga__decoder__upcast_as__wuffs_base__image_decoder( - wuffs_tga__decoder* p) { +wuffs_qoi__decoder__upcast_as__wuffs_base__image_decoder( + wuffs_qoi__decoder* p) { return (wuffs_base__image_decoder*)p; } @@ -12659,35 +13272,35 @@ wuffs_tga__decoder__upcast_as__wuffs_base__image_decoder( WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_tga__decoder__get_quirk( - const wuffs_tga__decoder* self, +wuffs_qoi__decoder__get_quirk( + const wuffs_qoi__decoder* self, uint32_t a_key); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__set_quirk( - wuffs_tga__decoder* self, +wuffs_qoi__decoder__set_quirk( + wuffs_qoi__decoder* self, uint32_t a_key, uint64_t a_value); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__decode_image_config( - wuffs_tga__decoder* self, +wuffs_qoi__decoder__decode_image_config( + wuffs_qoi__decoder* self, wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__decode_frame_config( - wuffs_tga__decoder* self, +wuffs_qoi__decoder__decode_frame_config( + wuffs_qoi__decoder* self, wuffs_base__frame_config* a_dst, wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__decode_frame( - wuffs_tga__decoder* self, +wuffs_qoi__decoder__decode_frame( + wuffs_qoi__decoder* self, wuffs_base__pixel_buffer* a_dst, wuffs_base__io_buffer* a_src, wuffs_base__pixel_blend a_blend, @@ -12696,50 +13309,50 @@ wuffs_tga__decoder__decode_frame( WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 -wuffs_tga__decoder__frame_dirty_rect( - const wuffs_tga__decoder* self); +wuffs_qoi__decoder__frame_dirty_rect( + const wuffs_qoi__decoder* self); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_tga__decoder__num_animation_loops( - const wuffs_tga__decoder* self); +wuffs_qoi__decoder__num_animation_loops( + const wuffs_qoi__decoder* self); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_tga__decoder__num_decoded_frame_configs( - const wuffs_tga__decoder* self); +wuffs_qoi__decoder__num_decoded_frame_configs( + const wuffs_qoi__decoder* self); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_tga__decoder__num_decoded_frames( - const wuffs_tga__decoder* self); +wuffs_qoi__decoder__num_decoded_frames( + const wuffs_qoi__decoder* self); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__restart_frame( - wuffs_tga__decoder* self, +wuffs_qoi__decoder__restart_frame( + wuffs_qoi__decoder* self, uint64_t a_index, uint64_t a_io_position); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_tga__decoder__set_report_metadata( - wuffs_tga__decoder* self, +wuffs_qoi__decoder__set_report_metadata( + wuffs_qoi__decoder* self, uint32_t a_fourcc, bool a_report); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__tell_me_more( - wuffs_tga__decoder* self, +wuffs_qoi__decoder__tell_me_more( + wuffs_qoi__decoder* self, wuffs_base__io_buffer* a_dst, wuffs_base__more_information* a_minfo, wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_tga__decoder__workbuf_len( - const wuffs_tga__decoder* self); +wuffs_qoi__decoder__workbuf_len( + const wuffs_qoi__decoder* self); #ifdef __cplusplus } // extern "C" @@ -12754,7 +13367,7 @@ wuffs_tga__decoder__workbuf_len( #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -struct wuffs_tga__decoder__struct { +struct wuffs_qoi__decoder__struct { // Do not access the private_impl's or private_data's fields directly. There // is no API/ABI compatibility or safety guarantee if you do so. Instead, use // the wuffs_foo__bar__baz functions. @@ -12768,22 +13381,14 @@ struct wuffs_tga__decoder__struct { wuffs_base__vtable vtable_for__wuffs_base__image_decoder; wuffs_base__vtable null_vtable; + uint32_t f_pixfmt; uint32_t f_width; uint32_t f_height; + uint64_t f_remaining_pixels_times_4; uint8_t f_call_sequence; - uint8_t f_header_id_length; - uint8_t f_header_color_map_type; - uint8_t f_header_image_type; - uint16_t f_header_color_map_first_entry_index; - uint16_t f_header_color_map_length; - uint8_t f_header_color_map_entry_size; - uint8_t f_header_pixel_depth; - uint8_t f_header_image_descriptor; - bool f_opaque; - uint32_t f_scratch_bytes_per_pixel; - uint32_t f_src_bytes_per_pixel; - uint32_t f_src_pixfmt; - uint64_t f_frame_config_io_position; + uint32_t f_buffer_index; + uint32_t f_dst_x; + uint32_t f_dst_y; wuffs_base__pixel_swizzler f_swizzler; uint32_t p_decode_image_config; @@ -12792,45 +13397,42 @@ struct wuffs_tga__decoder__struct { uint32_t p_do_decode_frame_config; uint32_t p_decode_frame; uint32_t p_do_decode_frame; + uint32_t p_from_src_to_buffer; } private_impl; struct { - uint8_t f_dst_palette[1024]; - uint8_t f_src_palette[1024]; - uint8_t f_scratch[4]; + uint8_t f_pixel[4]; + uint8_t f_cache[256]; + uint8_t f_buffer[8196]; struct { - uint32_t v_i; uint64_t scratch; } s_do_decode_image_config; struct { - uint64_t v_dst_bytes_per_pixel; - uint32_t v_dst_x; - uint32_t v_dst_y; - uint64_t v_mark; - uint32_t v_num_pixels32; - uint32_t v_lit_length; - uint32_t v_run_length; - uint64_t v_num_dst_bytes; uint64_t scratch; } s_do_decode_frame; + struct { + uint8_t v_dg; + uint32_t v_bi; + uint32_t v_bk; + } s_from_src_to_buffer; } private_data; #ifdef __cplusplus #if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) - using unique_ptr = std::unique_ptr; + using unique_ptr = std::unique_ptr; // On failure, the alloc_etc functions return nullptr. They don't throw. static inline unique_ptr alloc() { - return unique_ptr(wuffs_tga__decoder__alloc()); + return unique_ptr(wuffs_qoi__decoder__alloc()); } static inline wuffs_base__image_decoder::unique_ptr alloc_as__wuffs_base__image_decoder() { return wuffs_base__image_decoder::unique_ptr( - wuffs_tga__decoder__alloc_as__wuffs_base__image_decoder()); + wuffs_qoi__decoder__alloc_as__wuffs_base__image_decoder()); } #endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) @@ -12846,10 +13448,10 @@ struct wuffs_tga__decoder__struct { // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in // order to provide convenience methods. These forward on "this", so that you // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". - wuffs_tga__decoder__struct() = delete; - wuffs_tga__decoder__struct(const wuffs_tga__decoder__struct&) = delete; - wuffs_tga__decoder__struct& operator=( - const wuffs_tga__decoder__struct&) = delete; + wuffs_qoi__decoder__struct() = delete; + wuffs_qoi__decoder__struct(const wuffs_qoi__decoder__struct&) = delete; + wuffs_qoi__decoder__struct& operator=( + const wuffs_qoi__decoder__struct&) = delete; #endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) #if !defined(WUFFS_IMPLEMENTATION) @@ -12869,7 +13471,7 @@ struct wuffs_tga__decoder__struct { size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options) { - return wuffs_tga__decoder__initialize( + return wuffs_qoi__decoder__initialize( this, sizeof_star_self, wuffs_version, options); } @@ -12881,28 +13483,28 @@ struct wuffs_tga__decoder__struct { inline uint64_t get_quirk( uint32_t a_key) const { - return wuffs_tga__decoder__get_quirk(this, a_key); + return wuffs_qoi__decoder__get_quirk(this, a_key); } inline wuffs_base__status set_quirk( uint32_t a_key, uint64_t a_value) { - return wuffs_tga__decoder__set_quirk(this, a_key, a_value); + return wuffs_qoi__decoder__set_quirk(this, a_key, a_value); } inline wuffs_base__status decode_image_config( wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src) { - return wuffs_tga__decoder__decode_image_config(this, a_dst, a_src); + return wuffs_qoi__decoder__decode_image_config(this, a_dst, a_src); } inline wuffs_base__status decode_frame_config( wuffs_base__frame_config* a_dst, wuffs_base__io_buffer* a_src) { - return wuffs_tga__decoder__decode_frame_config(this, a_dst, a_src); + return wuffs_qoi__decoder__decode_frame_config(this, a_dst, a_src); } inline wuffs_base__status @@ -12912,41 +13514,41 @@ struct wuffs_tga__decoder__struct { wuffs_base__pixel_blend a_blend, wuffs_base__slice_u8 a_workbuf, wuffs_base__decode_frame_options* a_opts) { - return wuffs_tga__decoder__decode_frame(this, a_dst, a_src, a_blend, a_workbuf, a_opts); + return wuffs_qoi__decoder__decode_frame(this, a_dst, a_src, a_blend, a_workbuf, a_opts); } inline wuffs_base__rect_ie_u32 frame_dirty_rect() const { - return wuffs_tga__decoder__frame_dirty_rect(this); + return wuffs_qoi__decoder__frame_dirty_rect(this); } inline uint32_t num_animation_loops() const { - return wuffs_tga__decoder__num_animation_loops(this); + return wuffs_qoi__decoder__num_animation_loops(this); } inline uint64_t num_decoded_frame_configs() const { - return wuffs_tga__decoder__num_decoded_frame_configs(this); + return wuffs_qoi__decoder__num_decoded_frame_configs(this); } inline uint64_t num_decoded_frames() const { - return wuffs_tga__decoder__num_decoded_frames(this); + return wuffs_qoi__decoder__num_decoded_frames(this); } inline wuffs_base__status restart_frame( uint64_t a_index, uint64_t a_io_position) { - return wuffs_tga__decoder__restart_frame(this, a_index, a_io_position); + return wuffs_qoi__decoder__restart_frame(this, a_index, a_io_position); } inline wuffs_base__empty_struct set_report_metadata( uint32_t a_fourcc, bool a_report) { - return wuffs_tga__decoder__set_report_metadata(this, a_fourcc, a_report); + return wuffs_qoi__decoder__set_report_metadata(this, a_fourcc, a_report); } inline wuffs_base__status @@ -12954,35 +13556,268 @@ struct wuffs_tga__decoder__struct { wuffs_base__io_buffer* a_dst, wuffs_base__more_information* a_minfo, wuffs_base__io_buffer* a_src) { - return wuffs_tga__decoder__tell_me_more(this, a_dst, a_minfo, a_src); + return wuffs_qoi__decoder__tell_me_more(this, a_dst, a_minfo, a_src); } inline wuffs_base__range_ii_u64 workbuf_len() const { - return wuffs_tga__decoder__workbuf_len(this); + return wuffs_qoi__decoder__workbuf_len(this); } #endif // __cplusplus -}; // struct wuffs_tga__decoder__struct +}; // struct wuffs_qoi__decoder__struct #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__TGA) || defined(WUFFS_NONMONOLITHIC) +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__QOI) || defined(WUFFS_NONMONOLITHIC) -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WBMP) || defined(WUFFS_NONMONOLITHIC) +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__SHA256) || defined(WUFFS_NONMONOLITHIC) // ---------------- Status Codes -extern const char wuffs_wbmp__error__bad_header[]; -extern const char wuffs_wbmp__error__truncated_input[]; +// ---------------- Public Consts + +// ---------------- Struct Declarations + +typedef struct wuffs_sha256__hasher__struct wuffs_sha256__hasher; + +#ifdef __cplusplus +extern "C" { +#endif + +// ---------------- Public Initializer Prototypes + +// For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, +// etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". +// +// Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. +// Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_sha256__hasher__initialize( + wuffs_sha256__hasher* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options); + +size_t +sizeof__wuffs_sha256__hasher(void); + +// ---------------- Allocs + +// These functions allocate and initialize Wuffs structs. They return NULL if +// memory allocation fails. If they return non-NULL, there is no need to call +// wuffs_foo__bar__initialize, but the caller is responsible for eventually +// calling free on the returned pointer. That pointer is effectively a C++ +// std::unique_ptr. + +wuffs_sha256__hasher* +wuffs_sha256__hasher__alloc(void); + +static inline wuffs_base__hasher_bitvec256* +wuffs_sha256__hasher__alloc_as__wuffs_base__hasher_bitvec256(void) { + return (wuffs_base__hasher_bitvec256*)(wuffs_sha256__hasher__alloc()); +} + +// ---------------- Upcasts + +static inline wuffs_base__hasher_bitvec256* +wuffs_sha256__hasher__upcast_as__wuffs_base__hasher_bitvec256( + wuffs_sha256__hasher* p) { + return (wuffs_base__hasher_bitvec256*)p; +} + +// ---------------- Public Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_sha256__hasher__get_quirk( + const wuffs_sha256__hasher* self, + uint32_t a_key); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_sha256__hasher__set_quirk( + wuffs_sha256__hasher* self, + uint32_t a_key, + uint64_t a_value); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_sha256__hasher__update( + wuffs_sha256__hasher* self, + wuffs_base__slice_u8 a_x); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__bitvec256 +wuffs_sha256__hasher__update_bitvec256( + wuffs_sha256__hasher* self, + wuffs_base__slice_u8 a_x); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__bitvec256 +wuffs_sha256__hasher__checksum_bitvec256( + const wuffs_sha256__hasher* self); + +#ifdef __cplusplus +} // extern "C" +#endif + +// ---------------- Struct Definitions + +// These structs' fields, and the sizeof them, are private implementation +// details that aren't guaranteed to be stable across Wuffs versions. +// +// See https://en.wikipedia.org/wiki/Opaque_pointer#C + +#if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) + +struct wuffs_sha256__hasher__struct { + // Do not access the private_impl's or private_data's fields directly. There + // is no API/ABI compatibility or safety guarantee if you do so. Instead, use + // the wuffs_foo__bar__baz functions. + // + // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct + // can be stack allocated when WUFFS_IMPLEMENTATION is defined. + + struct { + uint32_t magic; + uint32_t active_coroutine; + wuffs_base__vtable vtable_for__wuffs_base__hasher_bitvec256; + wuffs_base__vtable null_vtable; + + uint64_t f_length_modulo_u64; + bool f_length_overflows_u64; + uint8_t f_padding0; + uint8_t f_padding1; + uint8_t f_padding2; + uint32_t f_buf_len; + uint8_t f_buf_data[64]; + uint32_t f_h0; + uint32_t f_h1; + uint32_t f_h2; + uint32_t f_h3; + uint32_t f_h4; + uint32_t f_h5; + uint32_t f_h6; + uint32_t f_h7; + } private_impl; + +#ifdef __cplusplus +#if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + using unique_ptr = std::unique_ptr; + + // On failure, the alloc_etc functions return nullptr. They don't throw. + + static inline unique_ptr + alloc() { + return unique_ptr(wuffs_sha256__hasher__alloc()); + } + + static inline wuffs_base__hasher_bitvec256::unique_ptr + alloc_as__wuffs_base__hasher_bitvec256() { + return wuffs_base__hasher_bitvec256::unique_ptr( + wuffs_sha256__hasher__alloc_as__wuffs_base__hasher_bitvec256()); + } +#endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + +#if defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + // Disallow constructing or copying an object via standard C++ mechanisms, + // e.g. the "new" operator, as this struct is intentionally opaque. Its total + // size and field layout is not part of the public, stable, memory-safe API. + // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and + // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as + // their first argument) rather than tweaking bar.private_impl.qux fields. + // + // In C, we can just leave wuffs_foo__bar as an incomplete type (unless + // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in + // order to provide convenience methods. These forward on "this", so that you + // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". + wuffs_sha256__hasher__struct() = delete; + wuffs_sha256__hasher__struct(const wuffs_sha256__hasher__struct&) = delete; + wuffs_sha256__hasher__struct& operator=( + const wuffs_sha256__hasher__struct&) = delete; +#endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + +#if !defined(WUFFS_IMPLEMENTATION) + // As above, the size of the struct is not part of the public API, and unless + // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap + // allocated, not stack allocated. Its size is not intended to be known at + // compile time, but it is unfortunately divulged as a side effect of + // defining C++ convenience methods. Use "sizeof__T()", calling the function, + // instead of "sizeof T", invoking the operator. To make the two values + // different, so that passing the latter will be rejected by the initialize + // function, we add an arbitrary amount of dead weight. + uint8_t dead_weight[123000000]; // 123 MB. +#endif // !defined(WUFFS_IMPLEMENTATION) + + inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT + initialize( + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options) { + return wuffs_sha256__hasher__initialize( + this, sizeof_star_self, wuffs_version, options); + } + + inline wuffs_base__hasher_bitvec256* + upcast_as__wuffs_base__hasher_bitvec256() { + return (wuffs_base__hasher_bitvec256*)this; + } + + inline uint64_t + get_quirk( + uint32_t a_key) const { + return wuffs_sha256__hasher__get_quirk(this, a_key); + } + + inline wuffs_base__status + set_quirk( + uint32_t a_key, + uint64_t a_value) { + return wuffs_sha256__hasher__set_quirk(this, a_key, a_value); + } + + inline wuffs_base__empty_struct + update( + wuffs_base__slice_u8 a_x) { + return wuffs_sha256__hasher__update(this, a_x); + } + + inline wuffs_base__bitvec256 + update_bitvec256( + wuffs_base__slice_u8 a_x) { + return wuffs_sha256__hasher__update_bitvec256(this, a_x); + } + + inline wuffs_base__bitvec256 + checksum_bitvec256() const { + return wuffs_sha256__hasher__checksum_bitvec256(this); + } + +#endif // __cplusplus +}; // struct wuffs_sha256__hasher__struct + +#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__SHA256) || defined(WUFFS_NONMONOLITHIC) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__TARGA) || defined(WUFFS_NONMONOLITHIC) + +// ---------------- Status Codes + +extern const char wuffs_targa__error__bad_header[]; +extern const char wuffs_targa__error__bad_run_length_encoding[]; +extern const char wuffs_targa__error__truncated_input[]; +extern const char wuffs_targa__error__unsupported_targa_file[]; // ---------------- Public Consts -#define WUFFS_WBMP__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u +#define WUFFS_TARGA__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u // ---------------- Struct Declarations -typedef struct wuffs_wbmp__decoder__struct wuffs_wbmp__decoder; +typedef struct wuffs_targa__decoder__struct wuffs_targa__decoder; #ifdef __cplusplus extern "C" { @@ -12997,14 +13832,14 @@ extern "C" { // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_wbmp__decoder__initialize( - wuffs_wbmp__decoder* self, +wuffs_targa__decoder__initialize( + wuffs_targa__decoder* self, size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options); size_t -sizeof__wuffs_wbmp__decoder(void); +sizeof__wuffs_targa__decoder(void); // ---------------- Allocs @@ -13014,19 +13849,19 @@ sizeof__wuffs_wbmp__decoder(void); // calling free on the returned pointer. That pointer is effectively a C++ // std::unique_ptr. -wuffs_wbmp__decoder* -wuffs_wbmp__decoder__alloc(void); +wuffs_targa__decoder* +wuffs_targa__decoder__alloc(void); static inline wuffs_base__image_decoder* -wuffs_wbmp__decoder__alloc_as__wuffs_base__image_decoder(void) { - return (wuffs_base__image_decoder*)(wuffs_wbmp__decoder__alloc()); +wuffs_targa__decoder__alloc_as__wuffs_base__image_decoder(void) { + return (wuffs_base__image_decoder*)(wuffs_targa__decoder__alloc()); } // ---------------- Upcasts static inline wuffs_base__image_decoder* -wuffs_wbmp__decoder__upcast_as__wuffs_base__image_decoder( - wuffs_wbmp__decoder* p) { +wuffs_targa__decoder__upcast_as__wuffs_base__image_decoder( + wuffs_targa__decoder* p) { return (wuffs_base__image_decoder*)p; } @@ -13034,35 +13869,35 @@ wuffs_wbmp__decoder__upcast_as__wuffs_base__image_decoder( WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_wbmp__decoder__get_quirk( - const wuffs_wbmp__decoder* self, +wuffs_targa__decoder__get_quirk( + const wuffs_targa__decoder* self, uint32_t a_key); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__set_quirk( - wuffs_wbmp__decoder* self, +wuffs_targa__decoder__set_quirk( + wuffs_targa__decoder* self, uint32_t a_key, uint64_t a_value); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__decode_image_config( - wuffs_wbmp__decoder* self, +wuffs_targa__decoder__decode_image_config( + wuffs_targa__decoder* self, wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__decode_frame_config( - wuffs_wbmp__decoder* self, +wuffs_targa__decoder__decode_frame_config( + wuffs_targa__decoder* self, wuffs_base__frame_config* a_dst, wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__decode_frame( - wuffs_wbmp__decoder* self, +wuffs_targa__decoder__decode_frame( + wuffs_targa__decoder* self, wuffs_base__pixel_buffer* a_dst, wuffs_base__io_buffer* a_src, wuffs_base__pixel_blend a_blend, @@ -13071,50 +13906,50 @@ wuffs_wbmp__decoder__decode_frame( WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 -wuffs_wbmp__decoder__frame_dirty_rect( - const wuffs_wbmp__decoder* self); +wuffs_targa__decoder__frame_dirty_rect( + const wuffs_targa__decoder* self); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_wbmp__decoder__num_animation_loops( - const wuffs_wbmp__decoder* self); +wuffs_targa__decoder__num_animation_loops( + const wuffs_targa__decoder* self); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_wbmp__decoder__num_decoded_frame_configs( - const wuffs_wbmp__decoder* self); +wuffs_targa__decoder__num_decoded_frame_configs( + const wuffs_targa__decoder* self); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_wbmp__decoder__num_decoded_frames( - const wuffs_wbmp__decoder* self); +wuffs_targa__decoder__num_decoded_frames( + const wuffs_targa__decoder* self); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__restart_frame( - wuffs_wbmp__decoder* self, +wuffs_targa__decoder__restart_frame( + wuffs_targa__decoder* self, uint64_t a_index, uint64_t a_io_position); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_wbmp__decoder__set_report_metadata( - wuffs_wbmp__decoder* self, +wuffs_targa__decoder__set_report_metadata( + wuffs_targa__decoder* self, uint32_t a_fourcc, bool a_report); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__tell_me_more( - wuffs_wbmp__decoder* self, +wuffs_targa__decoder__tell_me_more( + wuffs_targa__decoder* self, wuffs_base__io_buffer* a_dst, wuffs_base__more_information* a_minfo, wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_wbmp__decoder__workbuf_len( - const wuffs_wbmp__decoder* self); +wuffs_targa__decoder__workbuf_len( + const wuffs_targa__decoder* self); #ifdef __cplusplus } // extern "C" @@ -13129,7 +13964,7 @@ wuffs_wbmp__decoder__workbuf_len( #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -struct wuffs_wbmp__decoder__struct { +struct wuffs_targa__decoder__struct { // Do not access the private_impl's or private_data's fields directly. There // is no API/ABI compatibility or safety guarantee if you do so. Instead, use // the wuffs_foo__bar__baz functions. @@ -13146,6 +13981,18 @@ struct wuffs_wbmp__decoder__struct { uint32_t f_width; uint32_t f_height; uint8_t f_call_sequence; + uint8_t f_header_id_length; + uint8_t f_header_color_map_type; + uint8_t f_header_image_type; + uint16_t f_header_color_map_first_entry_index; + uint16_t f_header_color_map_length; + uint8_t f_header_color_map_entry_size; + uint8_t f_header_pixel_depth; + uint8_t f_header_image_descriptor; + bool f_opaque; + uint32_t f_scratch_bytes_per_pixel; + uint32_t f_src_bytes_per_pixel; + uint32_t f_src_pixfmt; uint64_t f_frame_config_io_position; wuffs_base__pixel_swizzler f_swizzler; @@ -13158,34 +14005,42 @@ struct wuffs_wbmp__decoder__struct { } private_impl; struct { + uint8_t f_dst_palette[1024]; + uint8_t f_src_palette[1024]; + uint8_t f_scratch[4]; + struct { uint32_t v_i; - uint32_t v_p; + uint64_t scratch; } s_do_decode_image_config; struct { uint64_t v_dst_bytes_per_pixel; uint32_t v_dst_x; uint32_t v_dst_y; - uint8_t v_src[1]; - uint8_t v_c; + uint64_t v_mark; + uint32_t v_num_pixels32; + uint32_t v_lit_length; + uint32_t v_run_length; + uint64_t v_num_dst_bytes; + uint64_t scratch; } s_do_decode_frame; } private_data; #ifdef __cplusplus #if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) - using unique_ptr = std::unique_ptr; + using unique_ptr = std::unique_ptr; // On failure, the alloc_etc functions return nullptr. They don't throw. static inline unique_ptr alloc() { - return unique_ptr(wuffs_wbmp__decoder__alloc()); + return unique_ptr(wuffs_targa__decoder__alloc()); } static inline wuffs_base__image_decoder::unique_ptr alloc_as__wuffs_base__image_decoder() { return wuffs_base__image_decoder::unique_ptr( - wuffs_wbmp__decoder__alloc_as__wuffs_base__image_decoder()); + wuffs_targa__decoder__alloc_as__wuffs_base__image_decoder()); } #endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) @@ -13201,10 +14056,10 @@ struct wuffs_wbmp__decoder__struct { // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in // order to provide convenience methods. These forward on "this", so that you // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". - wuffs_wbmp__decoder__struct() = delete; - wuffs_wbmp__decoder__struct(const wuffs_wbmp__decoder__struct&) = delete; - wuffs_wbmp__decoder__struct& operator=( - const wuffs_wbmp__decoder__struct&) = delete; + wuffs_targa__decoder__struct() = delete; + wuffs_targa__decoder__struct(const wuffs_targa__decoder__struct&) = delete; + wuffs_targa__decoder__struct& operator=( + const wuffs_targa__decoder__struct&) = delete; #endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) #if !defined(WUFFS_IMPLEMENTATION) @@ -13224,7 +14079,7 @@ struct wuffs_wbmp__decoder__struct { size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options) { - return wuffs_wbmp__decoder__initialize( + return wuffs_targa__decoder__initialize( this, sizeof_star_self, wuffs_version, options); } @@ -13236,28 +14091,28 @@ struct wuffs_wbmp__decoder__struct { inline uint64_t get_quirk( uint32_t a_key) const { - return wuffs_wbmp__decoder__get_quirk(this, a_key); + return wuffs_targa__decoder__get_quirk(this, a_key); } inline wuffs_base__status set_quirk( uint32_t a_key, uint64_t a_value) { - return wuffs_wbmp__decoder__set_quirk(this, a_key, a_value); + return wuffs_targa__decoder__set_quirk(this, a_key, a_value); } inline wuffs_base__status decode_image_config( wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src) { - return wuffs_wbmp__decoder__decode_image_config(this, a_dst, a_src); + return wuffs_targa__decoder__decode_image_config(this, a_dst, a_src); } inline wuffs_base__status decode_frame_config( wuffs_base__frame_config* a_dst, wuffs_base__io_buffer* a_src) { - return wuffs_wbmp__decoder__decode_frame_config(this, a_dst, a_src); + return wuffs_targa__decoder__decode_frame_config(this, a_dst, a_src); } inline wuffs_base__status @@ -13267,41 +14122,41 @@ struct wuffs_wbmp__decoder__struct { wuffs_base__pixel_blend a_blend, wuffs_base__slice_u8 a_workbuf, wuffs_base__decode_frame_options* a_opts) { - return wuffs_wbmp__decoder__decode_frame(this, a_dst, a_src, a_blend, a_workbuf, a_opts); + return wuffs_targa__decoder__decode_frame(this, a_dst, a_src, a_blend, a_workbuf, a_opts); } inline wuffs_base__rect_ie_u32 frame_dirty_rect() const { - return wuffs_wbmp__decoder__frame_dirty_rect(this); + return wuffs_targa__decoder__frame_dirty_rect(this); } inline uint32_t num_animation_loops() const { - return wuffs_wbmp__decoder__num_animation_loops(this); + return wuffs_targa__decoder__num_animation_loops(this); } inline uint64_t num_decoded_frame_configs() const { - return wuffs_wbmp__decoder__num_decoded_frame_configs(this); + return wuffs_targa__decoder__num_decoded_frame_configs(this); } inline uint64_t num_decoded_frames() const { - return wuffs_wbmp__decoder__num_decoded_frames(this); + return wuffs_targa__decoder__num_decoded_frames(this); } inline wuffs_base__status restart_frame( uint64_t a_index, uint64_t a_io_position) { - return wuffs_wbmp__decoder__restart_frame(this, a_index, a_io_position); + return wuffs_targa__decoder__restart_frame(this, a_index, a_io_position); } inline wuffs_base__empty_struct set_report_metadata( uint32_t a_fourcc, bool a_report) { - return wuffs_wbmp__decoder__set_report_metadata(this, a_fourcc, a_report); + return wuffs_targa__decoder__set_report_metadata(this, a_fourcc, a_report); } inline wuffs_base__status @@ -13309,30 +14164,37 @@ struct wuffs_wbmp__decoder__struct { wuffs_base__io_buffer* a_dst, wuffs_base__more_information* a_minfo, wuffs_base__io_buffer* a_src) { - return wuffs_wbmp__decoder__tell_me_more(this, a_dst, a_minfo, a_src); + return wuffs_targa__decoder__tell_me_more(this, a_dst, a_minfo, a_src); } inline wuffs_base__range_ii_u64 workbuf_len() const { - return wuffs_wbmp__decoder__workbuf_len(this); + return wuffs_targa__decoder__workbuf_len(this); } #endif // __cplusplus -}; // struct wuffs_wbmp__decoder__struct +}; // struct wuffs_targa__decoder__struct #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WBMP) || defined(WUFFS_NONMONOLITHIC) +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__TARGA) || defined(WUFFS_NONMONOLITHIC) -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH32) || defined(WUFFS_NONMONOLITHIC) +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__THUMBHASH) || defined(WUFFS_NONMONOLITHIC) // ---------------- Status Codes +extern const char wuffs_thumbhash__error__bad_header[]; +extern const char wuffs_thumbhash__error__truncated_input[]; + // ---------------- Public Consts +#define WUFFS_THUMBHASH__QUIRK_JUST_RAW_THUMBHASH 1712283648u + +#define WUFFS_THUMBHASH__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u + // ---------------- Struct Declarations -typedef struct wuffs_xxhash32__hasher__struct wuffs_xxhash32__hasher; +typedef struct wuffs_thumbhash__decoder__struct wuffs_thumbhash__decoder; #ifdef __cplusplus extern "C" { @@ -13347,14 +14209,14 @@ extern "C" { // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_xxhash32__hasher__initialize( - wuffs_xxhash32__hasher* self, +wuffs_thumbhash__decoder__initialize( + wuffs_thumbhash__decoder* self, size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options); size_t -sizeof__wuffs_xxhash32__hasher(void); +sizeof__wuffs_thumbhash__decoder(void); // ---------------- Allocs @@ -13364,53 +14226,107 @@ sizeof__wuffs_xxhash32__hasher(void); // calling free on the returned pointer. That pointer is effectively a C++ // std::unique_ptr. -wuffs_xxhash32__hasher* -wuffs_xxhash32__hasher__alloc(void); +wuffs_thumbhash__decoder* +wuffs_thumbhash__decoder__alloc(void); -static inline wuffs_base__hasher_u32* -wuffs_xxhash32__hasher__alloc_as__wuffs_base__hasher_u32(void) { - return (wuffs_base__hasher_u32*)(wuffs_xxhash32__hasher__alloc()); +static inline wuffs_base__image_decoder* +wuffs_thumbhash__decoder__alloc_as__wuffs_base__image_decoder(void) { + return (wuffs_base__image_decoder*)(wuffs_thumbhash__decoder__alloc()); } // ---------------- Upcasts -static inline wuffs_base__hasher_u32* -wuffs_xxhash32__hasher__upcast_as__wuffs_base__hasher_u32( - wuffs_xxhash32__hasher* p) { - return (wuffs_base__hasher_u32*)p; +static inline wuffs_base__image_decoder* +wuffs_thumbhash__decoder__upcast_as__wuffs_base__image_decoder( + wuffs_thumbhash__decoder* p) { + return (wuffs_base__image_decoder*)p; } // ---------------- Public Function Prototypes WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_xxhash32__hasher__get_quirk( - const wuffs_xxhash32__hasher* self, +wuffs_thumbhash__decoder__get_quirk( + const wuffs_thumbhash__decoder* self, uint32_t a_key); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_xxhash32__hasher__set_quirk( - wuffs_xxhash32__hasher* self, +wuffs_thumbhash__decoder__set_quirk( + wuffs_thumbhash__decoder* self, uint32_t a_key, uint64_t a_value); WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_xxhash32__hasher__update( - wuffs_xxhash32__hasher* self, - wuffs_base__slice_u8 a_x); +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_thumbhash__decoder__decode_image_config( + wuffs_thumbhash__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_xxhash32__hasher__update_u32( - wuffs_xxhash32__hasher* self, - wuffs_base__slice_u8 a_x); +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_thumbhash__decoder__decode_frame_config( + wuffs_thumbhash__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_thumbhash__decoder__decode_frame( + wuffs_thumbhash__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_thumbhash__decoder__frame_dirty_rect( + const wuffs_thumbhash__decoder* self); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_xxhash32__hasher__checksum_u32( - const wuffs_xxhash32__hasher* self); +wuffs_thumbhash__decoder__num_animation_loops( + const wuffs_thumbhash__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_thumbhash__decoder__num_decoded_frame_configs( + const wuffs_thumbhash__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_thumbhash__decoder__num_decoded_frames( + const wuffs_thumbhash__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_thumbhash__decoder__restart_frame( + wuffs_thumbhash__decoder* self, + uint64_t a_index, + uint64_t a_io_position); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_thumbhash__decoder__set_report_metadata( + wuffs_thumbhash__decoder* self, + uint32_t a_fourcc, + bool a_report); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_thumbhash__decoder__tell_me_more( + wuffs_thumbhash__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_thumbhash__decoder__workbuf_len( + const wuffs_thumbhash__decoder* self); #ifdef __cplusplus } // extern "C" @@ -13425,7 +14341,7 @@ wuffs_xxhash32__hasher__checksum_u32( #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -struct wuffs_xxhash32__hasher__struct { +struct wuffs_thumbhash__decoder__struct { // Do not access the private_impl's or private_data's fields directly. There // is no API/ABI compatibility or safety guarantee if you do so. Instead, use // the wuffs_foo__bar__baz functions. @@ -13436,36 +14352,72 @@ struct wuffs_xxhash32__hasher__struct { struct { uint32_t magic; uint32_t active_coroutine; - wuffs_base__vtable vtable_for__wuffs_base__hasher_u32; + wuffs_base__vtable vtable_for__wuffs_base__image_decoder; wuffs_base__vtable null_vtable; - uint32_t f_length_modulo_u32; - bool f_length_overflows_u32; - uint8_t f_padding0; - uint8_t f_padding1; - uint8_t f_buf_len; - uint8_t f_buf_data[16]; - uint32_t f_v0; - uint32_t f_v1; - uint32_t f_v2; - uint32_t f_v3; + uint32_t f_pixfmt; + uint8_t f_w_dimension_code; + uint8_t f_h_dimension_code; + uint8_t f_call_sequence; + uint8_t f_frame_config_io_position; + uint64_t f_l_dc; + uint64_t f_p_dc; + uint64_t f_q_dc; + uint64_t f_a_dc; + bool f_quirk_just_raw_thumbhash; + uint8_t f_l_scale; + uint8_t f_p_scale; + uint8_t f_q_scale; + uint8_t f_a_scale; + uint8_t f_has_alpha; + uint8_t f_l_count; + uint8_t f_is_landscape; + uint32_t f_lx; + uint32_t f_ly; + wuffs_base__pixel_swizzler f_swizzler; + + uint32_t p_decode_image_config; + uint32_t p_do_decode_image_config; + uint32_t p_decode_frame_config; + uint32_t p_do_decode_frame_config; + uint32_t p_decode_frame; + uint32_t p_do_decode_frame; + uint32_t p_from_src_to_coeffs; } private_impl; + struct { + uint32_t f_lac[32]; + uint32_t f_pac[8]; + uint32_t f_qac[8]; + uint32_t f_aac[16]; + uint8_t f_pixels[32][128]; + + struct { + uint64_t scratch; + } s_do_decode_image_config; + struct { + uint32_t v_cy; + uint32_t v_cx; + uint32_t v_i; + bool v_has_bits; + } s_from_src_to_coeffs; + } private_data; + #ifdef __cplusplus #if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) - using unique_ptr = std::unique_ptr; + using unique_ptr = std::unique_ptr; // On failure, the alloc_etc functions return nullptr. They don't throw. static inline unique_ptr alloc() { - return unique_ptr(wuffs_xxhash32__hasher__alloc()); + return unique_ptr(wuffs_thumbhash__decoder__alloc()); } - static inline wuffs_base__hasher_u32::unique_ptr - alloc_as__wuffs_base__hasher_u32() { - return wuffs_base__hasher_u32::unique_ptr( - wuffs_xxhash32__hasher__alloc_as__wuffs_base__hasher_u32()); + static inline wuffs_base__image_decoder::unique_ptr + alloc_as__wuffs_base__image_decoder() { + return wuffs_base__image_decoder::unique_ptr( + wuffs_thumbhash__decoder__alloc_as__wuffs_base__image_decoder()); } #endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) @@ -13481,10 +14433,10 @@ struct wuffs_xxhash32__hasher__struct { // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in // order to provide convenience methods. These forward on "this", so that you // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". - wuffs_xxhash32__hasher__struct() = delete; - wuffs_xxhash32__hasher__struct(const wuffs_xxhash32__hasher__struct&) = delete; - wuffs_xxhash32__hasher__struct& operator=( - const wuffs_xxhash32__hasher__struct&) = delete; + wuffs_thumbhash__decoder__struct() = delete; + wuffs_thumbhash__decoder__struct(const wuffs_thumbhash__decoder__struct&) = delete; + wuffs_thumbhash__decoder__struct& operator=( + const wuffs_thumbhash__decoder__struct&) = delete; #endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) #if !defined(WUFFS_IMPLEMENTATION) @@ -13504,53 +14456,107 @@ struct wuffs_xxhash32__hasher__struct { size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options) { - return wuffs_xxhash32__hasher__initialize( + return wuffs_thumbhash__decoder__initialize( this, sizeof_star_self, wuffs_version, options); } - inline wuffs_base__hasher_u32* - upcast_as__wuffs_base__hasher_u32() { - return (wuffs_base__hasher_u32*)this; + inline wuffs_base__image_decoder* + upcast_as__wuffs_base__image_decoder() { + return (wuffs_base__image_decoder*)this; } inline uint64_t get_quirk( uint32_t a_key) const { - return wuffs_xxhash32__hasher__get_quirk(this, a_key); + return wuffs_thumbhash__decoder__get_quirk(this, a_key); } inline wuffs_base__status set_quirk( uint32_t a_key, uint64_t a_value) { - return wuffs_xxhash32__hasher__set_quirk(this, a_key, a_value); + return wuffs_thumbhash__decoder__set_quirk(this, a_key, a_value); } - inline wuffs_base__empty_struct - update( - wuffs_base__slice_u8 a_x) { - return wuffs_xxhash32__hasher__update(this, a_x); + inline wuffs_base__status + decode_image_config( + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + return wuffs_thumbhash__decoder__decode_image_config(this, a_dst, a_src); } - inline uint32_t - update_u32( - wuffs_base__slice_u8 a_x) { - return wuffs_xxhash32__hasher__update_u32(this, a_x); + inline wuffs_base__status + decode_frame_config( + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + return wuffs_thumbhash__decoder__decode_frame_config(this, a_dst, a_src); } - inline uint32_t - checksum_u32() const { - return wuffs_xxhash32__hasher__checksum_u32(this); + inline wuffs_base__status + decode_frame( + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + return wuffs_thumbhash__decoder__decode_frame(this, a_dst, a_src, a_blend, a_workbuf, a_opts); } -#endif // __cplusplus -}; // struct wuffs_xxhash32__hasher__struct - -#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) + inline wuffs_base__rect_ie_u32 + frame_dirty_rect() const { + return wuffs_thumbhash__decoder__frame_dirty_rect(this); + } -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH32) || defined(WUFFS_NONMONOLITHIC) + inline uint32_t + num_animation_loops() const { + return wuffs_thumbhash__decoder__num_animation_loops(this); + } -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH64) || defined(WUFFS_NONMONOLITHIC) + inline uint64_t + num_decoded_frame_configs() const { + return wuffs_thumbhash__decoder__num_decoded_frame_configs(this); + } + + inline uint64_t + num_decoded_frames() const { + return wuffs_thumbhash__decoder__num_decoded_frames(this); + } + + inline wuffs_base__status + restart_frame( + uint64_t a_index, + uint64_t a_io_position) { + return wuffs_thumbhash__decoder__restart_frame(this, a_index, a_io_position); + } + + inline wuffs_base__empty_struct + set_report_metadata( + uint32_t a_fourcc, + bool a_report) { + return wuffs_thumbhash__decoder__set_report_metadata(this, a_fourcc, a_report); + } + + inline wuffs_base__status + tell_me_more( + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + return wuffs_thumbhash__decoder__tell_me_more(this, a_dst, a_minfo, a_src); + } + + inline wuffs_base__range_ii_u64 + workbuf_len() const { + return wuffs_thumbhash__decoder__workbuf_len(this); + } + +#endif // __cplusplus +}; // struct wuffs_thumbhash__decoder__struct + +#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__THUMBHASH) || defined(WUFFS_NONMONOLITHIC) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__VP8) || defined(WUFFS_NONMONOLITHIC) // ---------------- Status Codes @@ -13558,7 +14564,7 @@ struct wuffs_xxhash32__hasher__struct { // ---------------- Struct Declarations -typedef struct wuffs_xxhash64__hasher__struct wuffs_xxhash64__hasher; +typedef struct wuffs_vp8__placeholder__struct wuffs_vp8__placeholder; #ifdef __cplusplus extern "C" { @@ -13573,14 +14579,14 @@ extern "C" { // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_xxhash64__hasher__initialize( - wuffs_xxhash64__hasher* self, +wuffs_vp8__placeholder__initialize( + wuffs_vp8__placeholder* self, size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options); size_t -sizeof__wuffs_xxhash64__hasher(void); +sizeof__wuffs_vp8__placeholder(void); // ---------------- Allocs @@ -13590,54 +14596,13 @@ sizeof__wuffs_xxhash64__hasher(void); // calling free on the returned pointer. That pointer is effectively a C++ // std::unique_ptr. -wuffs_xxhash64__hasher* -wuffs_xxhash64__hasher__alloc(void); - -static inline wuffs_base__hasher_u64* -wuffs_xxhash64__hasher__alloc_as__wuffs_base__hasher_u64(void) { - return (wuffs_base__hasher_u64*)(wuffs_xxhash64__hasher__alloc()); -} +wuffs_vp8__placeholder* +wuffs_vp8__placeholder__alloc(void); // ---------------- Upcasts -static inline wuffs_base__hasher_u64* -wuffs_xxhash64__hasher__upcast_as__wuffs_base__hasher_u64( - wuffs_xxhash64__hasher* p) { - return (wuffs_base__hasher_u64*)p; -} - // ---------------- Public Function Prototypes -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_xxhash64__hasher__get_quirk( - const wuffs_xxhash64__hasher* self, - uint32_t a_key); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_xxhash64__hasher__set_quirk( - wuffs_xxhash64__hasher* self, - uint32_t a_key, - uint64_t a_value); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_xxhash64__hasher__update( - wuffs_xxhash64__hasher* self, - wuffs_base__slice_u8 a_x); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_xxhash64__hasher__update_u64( - wuffs_xxhash64__hasher* self, - wuffs_base__slice_u8 a_x); - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_xxhash64__hasher__checksum_u64( - const wuffs_xxhash64__hasher* self); - #ifdef __cplusplus } // extern "C" #endif @@ -13651,7 +14616,7 @@ wuffs_xxhash64__hasher__checksum_u64( #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -struct wuffs_xxhash64__hasher__struct { +struct wuffs_vp8__placeholder__struct { // Do not access the private_impl's or private_data's fields directly. There // is no API/ABI compatibility or safety guarantee if you do so. Instead, use // the wuffs_foo__bar__baz functions. @@ -13662,37 +14627,20 @@ struct wuffs_xxhash64__hasher__struct { struct { uint32_t magic; uint32_t active_coroutine; - wuffs_base__vtable vtable_for__wuffs_base__hasher_u64; wuffs_base__vtable null_vtable; - uint64_t f_length_modulo_u64; - bool f_length_overflows_u64; - uint8_t f_padding0; - uint8_t f_padding1; - uint8_t f_padding2; - uint32_t f_buf_len; - uint8_t f_buf_data[32]; - uint64_t f_v0; - uint64_t f_v1; - uint64_t f_v2; - uint64_t f_v3; + uint32_t f_placeholder; } private_impl; #ifdef __cplusplus #if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) - using unique_ptr = std::unique_ptr; + using unique_ptr = std::unique_ptr; // On failure, the alloc_etc functions return nullptr. They don't throw. static inline unique_ptr alloc() { - return unique_ptr(wuffs_xxhash64__hasher__alloc()); - } - - static inline wuffs_base__hasher_u64::unique_ptr - alloc_as__wuffs_base__hasher_u64() { - return wuffs_base__hasher_u64::unique_ptr( - wuffs_xxhash64__hasher__alloc_as__wuffs_base__hasher_u64()); + return unique_ptr(wuffs_vp8__placeholder__alloc()); } #endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) @@ -13708,10 +14656,10 @@ struct wuffs_xxhash64__hasher__struct { // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in // order to provide convenience methods. These forward on "this", so that you // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". - wuffs_xxhash64__hasher__struct() = delete; - wuffs_xxhash64__hasher__struct(const wuffs_xxhash64__hasher__struct&) = delete; - wuffs_xxhash64__hasher__struct& operator=( - const wuffs_xxhash64__hasher__struct&) = delete; + wuffs_vp8__placeholder__struct() = delete; + wuffs_vp8__placeholder__struct(const wuffs_vp8__placeholder__struct&) = delete; + wuffs_vp8__placeholder__struct& operator=( + const wuffs_vp8__placeholder__struct&) = delete; #endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) #if !defined(WUFFS_IMPLEMENTATION) @@ -13731,74 +14679,31 @@ struct wuffs_xxhash64__hasher__struct { size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options) { - return wuffs_xxhash64__hasher__initialize( + return wuffs_vp8__placeholder__initialize( this, sizeof_star_self, wuffs_version, options); } - inline wuffs_base__hasher_u64* - upcast_as__wuffs_base__hasher_u64() { - return (wuffs_base__hasher_u64*)this; - } - - inline uint64_t - get_quirk( - uint32_t a_key) const { - return wuffs_xxhash64__hasher__get_quirk(this, a_key); - } - - inline wuffs_base__status - set_quirk( - uint32_t a_key, - uint64_t a_value) { - return wuffs_xxhash64__hasher__set_quirk(this, a_key, a_value); - } - - inline wuffs_base__empty_struct - update( - wuffs_base__slice_u8 a_x) { - return wuffs_xxhash64__hasher__update(this, a_x); - } - - inline uint64_t - update_u64( - wuffs_base__slice_u8 a_x) { - return wuffs_xxhash64__hasher__update_u64(this, a_x); - } - - inline uint64_t - checksum_u64() const { - return wuffs_xxhash64__hasher__checksum_u64(this); - } - #endif // __cplusplus -}; // struct wuffs_xxhash64__hasher__struct +}; // struct wuffs_vp8__placeholder__struct #endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH64) || defined(WUFFS_NONMONOLITHIC) +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__VP8) || defined(WUFFS_NONMONOLITHIC) -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XZ) || defined(WUFFS_NONMONOLITHIC) +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WBMP) || defined(WUFFS_NONMONOLITHIC) // ---------------- Status Codes -extern const char wuffs_xz__error__bad_block_header[]; -extern const char wuffs_xz__error__bad_checksum[]; -extern const char wuffs_xz__error__bad_header[]; -extern const char wuffs_xz__error__bad_padding[]; -extern const char wuffs_xz__error__truncated_input[]; -extern const char wuffs_xz__error__unsupported_checksum_algorithm[]; -extern const char wuffs_xz__error__unsupported_filter[]; -extern const char wuffs_xz__error__unsupported_number_of_filters[]; +extern const char wuffs_wbmp__error__bad_header[]; +extern const char wuffs_wbmp__error__truncated_input[]; // ---------------- Public Consts -#define WUFFS_XZ__DECODER_DST_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 4294967295u - -#define WUFFS_XZ__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u +#define WUFFS_WBMP__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u // ---------------- Struct Declarations -typedef struct wuffs_xz__decoder__struct wuffs_xz__decoder; +typedef struct wuffs_wbmp__decoder__struct wuffs_wbmp__decoder; #ifdef __cplusplus extern "C" { @@ -13813,14 +14718,14 @@ extern "C" { // Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_xz__decoder__initialize( - wuffs_xz__decoder* self, +wuffs_wbmp__decoder__initialize( + wuffs_wbmp__decoder* self, size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options); size_t -sizeof__wuffs_xz__decoder(void); +sizeof__wuffs_wbmp__decoder(void); // ---------------- Allocs @@ -13830,54 +14735,107 @@ sizeof__wuffs_xz__decoder(void); // calling free on the returned pointer. That pointer is effectively a C++ // std::unique_ptr. -wuffs_xz__decoder* -wuffs_xz__decoder__alloc(void); +wuffs_wbmp__decoder* +wuffs_wbmp__decoder__alloc(void); -static inline wuffs_base__io_transformer* -wuffs_xz__decoder__alloc_as__wuffs_base__io_transformer(void) { - return (wuffs_base__io_transformer*)(wuffs_xz__decoder__alloc()); +static inline wuffs_base__image_decoder* +wuffs_wbmp__decoder__alloc_as__wuffs_base__image_decoder(void) { + return (wuffs_base__image_decoder*)(wuffs_wbmp__decoder__alloc()); } // ---------------- Upcasts -static inline wuffs_base__io_transformer* -wuffs_xz__decoder__upcast_as__wuffs_base__io_transformer( - wuffs_xz__decoder* p) { - return (wuffs_base__io_transformer*)p; +static inline wuffs_base__image_decoder* +wuffs_wbmp__decoder__upcast_as__wuffs_base__image_decoder( + wuffs_wbmp__decoder* p) { + return (wuffs_base__image_decoder*)p; } // ---------------- Public Function Prototypes WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_xz__decoder__get_quirk( - const wuffs_xz__decoder* self, +wuffs_wbmp__decoder__get_quirk( + const wuffs_wbmp__decoder* self, uint32_t a_key); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_xz__decoder__set_quirk( - wuffs_xz__decoder* self, +wuffs_wbmp__decoder__set_quirk( + wuffs_wbmp__decoder* self, uint32_t a_key, uint64_t a_value); WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 -wuffs_xz__decoder__dst_history_retain_length( - const wuffs_xz__decoder* self); +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_wbmp__decoder__decode_image_config( + wuffs_wbmp__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_xz__decoder__workbuf_len( - const wuffs_xz__decoder* self); +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_wbmp__decoder__decode_frame_config( + wuffs_wbmp__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_xz__decoder__transform_io( - wuffs_xz__decoder* self, - wuffs_base__io_buffer* a_dst, +wuffs_wbmp__decoder__decode_frame( + wuffs_wbmp__decoder* self, + wuffs_base__pixel_buffer* a_dst, wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf); + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_wbmp__decoder__frame_dirty_rect( + const wuffs_wbmp__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_wbmp__decoder__num_animation_loops( + const wuffs_wbmp__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_wbmp__decoder__num_decoded_frame_configs( + const wuffs_wbmp__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_wbmp__decoder__num_decoded_frames( + const wuffs_wbmp__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_wbmp__decoder__restart_frame( + wuffs_wbmp__decoder* self, + uint64_t a_index, + uint64_t a_io_position); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_wbmp__decoder__set_report_metadata( + wuffs_wbmp__decoder* self, + uint32_t a_fourcc, + bool a_report); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_wbmp__decoder__tell_me_more( + wuffs_wbmp__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_wbmp__decoder__workbuf_len( + const wuffs_wbmp__decoder* self); #ifdef __cplusplus } // extern "C" @@ -13892,7 +14850,7 @@ wuffs_xz__decoder__transform_io( #if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -struct wuffs_xz__decoder__struct { +struct wuffs_wbmp__decoder__struct { // Do not access the private_impl's or private_data's fields directly. There // is no API/ABI compatibility or safety guarantee if you do so. Instead, use // the wuffs_foo__bar__baz functions. @@ -13903,55 +14861,52 @@ struct wuffs_xz__decoder__struct { struct { uint32_t magic; uint32_t active_coroutine; - wuffs_base__vtable vtable_for__wuffs_base__io_transformer; + wuffs_base__vtable vtable_for__wuffs_base__image_decoder; wuffs_base__vtable null_vtable; - uint32_t f_placeholder; - uint32_t f_checksummer; - bool f_ignore_checksum; - bool f_block_has_compressed_size; - bool f_block_has_uncompressed_size; - uint64_t f_block_compressed_size; - uint64_t f_block_uncompressed_size; + uint32_t f_width; + uint32_t f_height; + uint8_t f_call_sequence; + uint64_t f_frame_config_io_position; + wuffs_base__pixel_swizzler f_swizzler; - uint32_t p_transform_io; - uint32_t p_do_transform_io; - uint32_t p_decode_block_header_with_padding; - uint32_t p_decode_block_header_sans_padding; + uint32_t p_decode_image_config; + uint32_t p_do_decode_image_config; + uint32_t p_decode_frame_config; + uint32_t p_do_decode_frame_config; + uint32_t p_decode_frame; + uint32_t p_do_decode_frame; } private_impl; struct { - wuffs_crc32__ieee_hasher f_crc32; - wuffs_crc64__ecma_hasher f_crc64; - wuffs_sha256__hasher f_sha256; - wuffs_lzma__decoder f_lzma; - struct { - uint32_t v_checksum32_have; - uint32_t v_padding; - uint64_t scratch; - } s_do_transform_io; + uint32_t v_i; + uint32_t v_p; + } s_do_decode_image_config; struct { - uint64_t v_padded_size_have; - uint64_t v_padded_size_want; - } s_decode_block_header_with_padding; + uint64_t v_dst_bytes_per_pixel; + uint32_t v_dst_x; + uint32_t v_dst_y; + uint8_t v_src[1]; + uint8_t v_c8; + } s_do_decode_frame; } private_data; #ifdef __cplusplus #if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) - using unique_ptr = std::unique_ptr; + using unique_ptr = std::unique_ptr; // On failure, the alloc_etc functions return nullptr. They don't throw. static inline unique_ptr alloc() { - return unique_ptr(wuffs_xz__decoder__alloc()); + return unique_ptr(wuffs_wbmp__decoder__alloc()); } - static inline wuffs_base__io_transformer::unique_ptr - alloc_as__wuffs_base__io_transformer() { - return wuffs_base__io_transformer::unique_ptr( - wuffs_xz__decoder__alloc_as__wuffs_base__io_transformer()); + static inline wuffs_base__image_decoder::unique_ptr + alloc_as__wuffs_base__image_decoder() { + return wuffs_base__image_decoder::unique_ptr( + wuffs_wbmp__decoder__alloc_as__wuffs_base__image_decoder()); } #endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) @@ -13967,10 +14922,10 @@ struct wuffs_xz__decoder__struct { // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in // order to provide convenience methods. These forward on "this", so that you // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". - wuffs_xz__decoder__struct() = delete; - wuffs_xz__decoder__struct(const wuffs_xz__decoder__struct&) = delete; - wuffs_xz__decoder__struct& operator=( - const wuffs_xz__decoder__struct&) = delete; + wuffs_wbmp__decoder__struct() = delete; + wuffs_wbmp__decoder__struct(const wuffs_wbmp__decoder__struct&) = delete; + wuffs_wbmp__decoder__struct& operator=( + const wuffs_wbmp__decoder__struct&) = delete; #endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) #if !defined(WUFFS_IMPLEMENTATION) @@ -13990,7681 +14945,10231 @@ struct wuffs_xz__decoder__struct { size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options) { - return wuffs_xz__decoder__initialize( + return wuffs_wbmp__decoder__initialize( this, sizeof_star_self, wuffs_version, options); } - inline wuffs_base__io_transformer* - upcast_as__wuffs_base__io_transformer() { - return (wuffs_base__io_transformer*)this; + inline wuffs_base__image_decoder* + upcast_as__wuffs_base__image_decoder() { + return (wuffs_base__image_decoder*)this; } inline uint64_t get_quirk( uint32_t a_key) const { - return wuffs_xz__decoder__get_quirk(this, a_key); + return wuffs_wbmp__decoder__get_quirk(this, a_key); } inline wuffs_base__status set_quirk( uint32_t a_key, uint64_t a_value) { - return wuffs_xz__decoder__set_quirk(this, a_key, a_value); + return wuffs_wbmp__decoder__set_quirk(this, a_key, a_value); } - inline wuffs_base__optional_u63 - dst_history_retain_length() const { - return wuffs_xz__decoder__dst_history_retain_length(this); + inline wuffs_base__status + decode_image_config( + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + return wuffs_wbmp__decoder__decode_image_config(this, a_dst, a_src); } - inline wuffs_base__range_ii_u64 - workbuf_len() const { - return wuffs_xz__decoder__workbuf_len(this); + inline wuffs_base__status + decode_frame_config( + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + return wuffs_wbmp__decoder__decode_frame_config(this, a_dst, a_src); } inline wuffs_base__status - transform_io( - wuffs_base__io_buffer* a_dst, + decode_frame( + wuffs_base__pixel_buffer* a_dst, wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { - return wuffs_xz__decoder__transform_io(this, a_dst, a_src, a_workbuf); + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + return wuffs_wbmp__decoder__decode_frame(this, a_dst, a_src, a_blend, a_workbuf, a_opts); } -#endif // __cplusplus -}; // struct wuffs_xz__decoder__struct - -#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) - -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XZ) || defined(WUFFS_NONMONOLITHIC) + inline wuffs_base__rect_ie_u32 + frame_dirty_rect() const { + return wuffs_wbmp__decoder__frame_dirty_rect(this); + } -#if defined(__cplusplus) && defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + inline uint32_t + num_animation_loops() const { + return wuffs_wbmp__decoder__num_animation_loops(this); + } -// ---------------- Auxiliary - Base + inline uint64_t + num_decoded_frame_configs() const { + return wuffs_wbmp__decoder__num_decoded_frame_configs(this); + } -// Auxiliary code is discussed at -// https://github.com/google/wuffs/blob/main/doc/note/auxiliary-code.md + inline uint64_t + num_decoded_frames() const { + return wuffs_wbmp__decoder__num_decoded_frames(this); + } -#include + inline wuffs_base__status + restart_frame( + uint64_t a_index, + uint64_t a_io_position) { + return wuffs_wbmp__decoder__restart_frame(this, a_index, a_io_position); + } -#include + inline wuffs_base__empty_struct + set_report_metadata( + uint32_t a_fourcc, + bool a_report) { + return wuffs_wbmp__decoder__set_report_metadata(this, a_fourcc, a_report); + } -namespace wuffs_aux { + inline wuffs_base__status + tell_me_more( + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + return wuffs_wbmp__decoder__tell_me_more(this, a_dst, a_minfo, a_src); + } -using IOBuffer = wuffs_base__io_buffer; + inline wuffs_base__range_ii_u64 + workbuf_len() const { + return wuffs_wbmp__decoder__workbuf_len(this); + } -// MemOwner represents ownership of some memory. Dynamically allocated memory -// (e.g. from malloc or new) is typically paired with free or delete, invoked -// when the std::unique_ptr is destroyed. Statically allocated memory might use -// MemOwner(nullptr, &free), even if that statically allocated memory is not -// nullptr, since calling free(nullptr) is a no-op. -using MemOwner = std::unique_ptr; +#endif // __cplusplus +}; // struct wuffs_wbmp__decoder__struct -namespace sync_io { +#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -// -------- +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WBMP) || defined(WUFFS_NONMONOLITHIC) -// DynIOBuffer is an IOBuffer that is backed by a dynamically sized byte array. -// It owns that backing array and will free it in its destructor. -// -// The array size can be explicitly extended (by calling the grow method) but, -// unlike a C++ std::vector, there is no implicit extension (e.g. by calling -// std::vector::insert) and its maximum size is capped by the max_incl -// constructor argument. -// -// It contains an IOBuffer-typed field whose reader side provides access to -// previously written bytes and whose writer side provides access to the -// allocated but not-yet-written-to slack space. For Go programmers, this slack -// space is roughly analogous to the s[len(s):cap(s)] space of a slice s. -class DynIOBuffer { - public: - enum GrowResult { - OK = 0, - FailedMaxInclExceeded = 1, - FailedOutOfMemory = 2, - }; +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WEBP) || defined(WUFFS_NONMONOLITHIC) - // m_buf holds the dynamically sized byte array and its read/write indexes: - // - m_buf.meta.wi is roughly analogous to a Go slice's length. - // - m_buf.data.len is roughly analogous to a Go slice's capacity. It is - // also equal to the m_buf.data.ptr malloc/realloc size. - // - // Users should not modify the m_buf.data.ptr or m_buf.data.len fields (as - // they are conceptually private to this class), but they can modify the - // bytes referenced by that pointer-length pair (e.g. compactions). - IOBuffer m_buf; +// ---------------- Status Codes - // m_max_incl is an inclusive upper bound on the backing array size. - const uint64_t m_max_incl; +extern const char wuffs_webp__error__bad_huffman_code_over_subscribed[]; +extern const char wuffs_webp__error__bad_huffman_code_under_subscribed[]; +extern const char wuffs_webp__error__bad_huffman_code[]; +extern const char wuffs_webp__error__bad_back_reference[]; +extern const char wuffs_webp__error__bad_color_cache[]; +extern const char wuffs_webp__error__bad_header[]; +extern const char wuffs_webp__error__bad_transform[]; +extern const char wuffs_webp__error__short_chunk[]; +extern const char wuffs_webp__error__truncated_input[]; +extern const char wuffs_webp__error__unsupported_number_of_huffman_groups[]; +extern const char wuffs_webp__error__unsupported_transform_after_color_indexing_transform[]; +extern const char wuffs_webp__error__unsupported_webp_file[]; - // Constructor and destructor. - explicit DynIOBuffer(uint64_t max_incl); - ~DynIOBuffer(); +// ---------------- Public Consts - // Drop frees the byte array and resets m_buf. The DynIOBuffer can still be - // used after a drop call. It just restarts from zero. - void drop(); +#define WUFFS_WEBP__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 0u - // grow ensures that the byte array size is at least min_incl and at most - // max_incl. It returns FailedMaxInclExceeded if that would require - // allocating more than max_incl bytes, including the case where (min_incl > - // max_incl). It returns FailedOutOfMemory if memory allocation failed. - GrowResult grow(uint64_t min_incl); +// ---------------- Struct Declarations - private: - // Delete the copy and assign constructors. - DynIOBuffer(const DynIOBuffer&) = delete; - DynIOBuffer& operator=(const DynIOBuffer&) = delete; +typedef struct wuffs_webp__decoder__struct wuffs_webp__decoder; - bool allocated(); +#ifdef __cplusplus +extern "C" { +#endif - static uint64_t round_up(uint64_t min_incl, uint64_t max_incl); -}; +// ---------------- Public Initializer Prototypes -// -------- +// For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, +// etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". +// +// Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. +// Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. -class Input { - public: - virtual ~Input(); +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_webp__decoder__initialize( + wuffs_webp__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options); - virtual IOBuffer* BringsItsOwnIOBuffer(); - virtual std::string CopyIn(IOBuffer* dst) = 0; -}; +size_t +sizeof__wuffs_webp__decoder(void); -// -------- +// ---------------- Allocs -// FileInput is an Input that reads from a file source. -// -// It does not take responsibility for closing the file when done. -class FileInput : public Input { - public: - FileInput(FILE* f); +// These functions allocate and initialize Wuffs structs. They return NULL if +// memory allocation fails. If they return non-NULL, there is no need to call +// wuffs_foo__bar__initialize, but the caller is responsible for eventually +// calling free on the returned pointer. That pointer is effectively a C++ +// std::unique_ptr. - virtual std::string CopyIn(IOBuffer* dst); +wuffs_webp__decoder* +wuffs_webp__decoder__alloc(void); - private: - FILE* m_f; +static inline wuffs_base__image_decoder* +wuffs_webp__decoder__alloc_as__wuffs_base__image_decoder(void) { + return (wuffs_base__image_decoder*)(wuffs_webp__decoder__alloc()); +} - // Delete the copy and assign constructors. - FileInput(const FileInput&) = delete; - FileInput& operator=(const FileInput&) = delete; -}; +// ---------------- Upcasts -// -------- +static inline wuffs_base__image_decoder* +wuffs_webp__decoder__upcast_as__wuffs_base__image_decoder( + wuffs_webp__decoder* p) { + return (wuffs_base__image_decoder*)p; +} -// MemoryInput is an Input that reads from an in-memory source. -// -// It does not take responsibility for freeing the memory when done. -class MemoryInput : public Input { - public: - MemoryInput(const char* ptr, size_t len); - MemoryInput(const uint8_t* ptr, size_t len); +// ---------------- Public Function Prototypes - virtual IOBuffer* BringsItsOwnIOBuffer(); - virtual std::string CopyIn(IOBuffer* dst); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_webp__decoder__get_quirk( + const wuffs_webp__decoder* self, + uint32_t a_key); - private: - IOBuffer m_io; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_webp__decoder__set_quirk( + wuffs_webp__decoder* self, + uint32_t a_key, + uint64_t a_value); - // Delete the copy and assign constructors. - MemoryInput(const MemoryInput&) = delete; - MemoryInput& operator=(const MemoryInput&) = delete; -}; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_webp__decoder__decode_image_config( + wuffs_webp__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); -// -------- +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_webp__decoder__decode_frame_config( + wuffs_webp__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); -} // namespace sync_io +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_webp__decoder__decode_frame( + wuffs_webp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); -} // namespace wuffs_aux +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_webp__decoder__frame_dirty_rect( + const wuffs_webp__decoder* self); -// ---------------- Auxiliary - CBOR +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_webp__decoder__num_animation_loops( + const wuffs_webp__decoder* self); -namespace wuffs_aux { +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_webp__decoder__num_decoded_frame_configs( + const wuffs_webp__decoder* self); -struct DecodeCborResult { - DecodeCborResult(std::string&& error_message0, uint64_t cursor_position0); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_webp__decoder__num_decoded_frames( + const wuffs_webp__decoder* self); - std::string error_message; - uint64_t cursor_position; -}; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_webp__decoder__restart_frame( + wuffs_webp__decoder* self, + uint64_t a_index, + uint64_t a_io_position); -class DecodeCborCallbacks { - public: - virtual ~DecodeCborCallbacks(); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_webp__decoder__set_report_metadata( + wuffs_webp__decoder* self, + uint32_t a_fourcc, + bool a_report); - // AppendXxx are called for leaf nodes: literals, numbers, strings, etc. +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_webp__decoder__tell_me_more( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src); - virtual std::string AppendNull() = 0; - virtual std::string AppendUndefined() = 0; - virtual std::string AppendBool(bool val) = 0; - virtual std::string AppendF64(double val) = 0; - virtual std::string AppendI64(int64_t val) = 0; - virtual std::string AppendU64(uint64_t val) = 0; - virtual std::string AppendByteString(std::string&& val) = 0; - virtual std::string AppendTextString(std::string&& val) = 0; - virtual std::string AppendMinus1MinusX(uint64_t val) = 0; - virtual std::string AppendCborSimpleValue(uint8_t val) = 0; - virtual std::string AppendCborTag(uint64_t val) = 0; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_webp__decoder__workbuf_len( + const wuffs_webp__decoder* self); - // Push and Pop are called for container nodes: CBOR arrays (lists) and CBOR - // maps (dictionaries). - // - // The flags bits combine exactly one of: - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_NONE - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_LIST - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_DICT - // and exactly one of: - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_NONE - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_LIST - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_DICT +#ifdef __cplusplus +} // extern "C" +#endif - virtual std::string Push(uint32_t flags) = 0; - virtual std::string Pop(uint32_t flags) = 0; +// ---------------- Struct Definitions - // Done is always the last Callback method called by DecodeCbor, whether or - // not parsing the input as CBOR encountered an error. Even when successful, - // trailing data may remain in input and buffer. - // - // Do not keep a reference to buffer or buffer.data.ptr after Done returns, - // as DecodeCbor may then de-allocate the backing array. +// These structs' fields, and the sizeof them, are private implementation +// details that aren't guaranteed to be stable across Wuffs versions. +// +// See https://en.wikipedia.org/wiki/Opaque_pointer#C + +#if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) + +struct wuffs_webp__decoder__struct { + // Do not access the private_impl's or private_data's fields directly. There + // is no API/ABI compatibility or safety guarantee if you do so. Instead, use + // the wuffs_foo__bar__baz functions. // - // The default Done implementation is a no-op. - virtual void // - Done(DecodeCborResult& result, sync_io::Input& input, IOBuffer& buffer); -}; + // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct + // can be stack allocated when WUFFS_IMPLEMENTATION is defined. -// The FooArgBar types add structure to Foo's optional arguments. They wrap -// inner representations for several reasons: -// - It provides a home for the DefaultValue static method, for Foo callers -// that want to override some but not all optional arguments. -// - It provides the "Bar" name at Foo call sites, which can help self- -// document Foo calls with many arguemnts. -// - It provides some type safety against accidentally transposing or omitting -// adjacent fundamentally-numeric-typed optional arguments. + struct { + uint32_t magic; + uint32_t active_coroutine; + wuffs_base__vtable vtable_for__wuffs_base__image_decoder; + wuffs_base__vtable null_vtable; -// DecodeCborArgQuirks wraps an optional argument to DecodeCbor. -struct DecodeCborArgQuirks { - explicit DecodeCborArgQuirks(wuffs_base__slice_u32 repr0); - explicit DecodeCborArgQuirks(uint32_t* ptr, size_t len); + uint32_t f_pixfmt; + uint32_t f_width; + uint32_t f_height; + uint8_t f_call_sequence; + uint8_t f_code_length_code_lengths[19]; + bool f_sub_chunk_has_padding; + uint64_t f_frame_config_io_position; + uint32_t f_riff_chunk_length; + uint32_t f_sub_chunk_length; + uint32_t f_bits; + uint32_t f_n_bits; + bool f_seen_transform[4]; + uint8_t f_transform_type[4]; + uint8_t f_transform_tile_size_log2[4]; + uint32_t f_n_transforms; + uint32_t f_color_cache_bits; + uint32_t f_overall_color_cache_bits; + uint32_t f_overall_tile_size_log2; + uint32_t f_overall_n_huffman_groups; + uint32_t f_ht_n_symbols; + uint32_t f_ht_code_lengths_remaining; + uint32_t f_color_indexing_palette_size; + uint32_t f_color_indexing_width; + uint32_t f_workbuf_offset_for_transform[4]; + uint32_t f_workbuf_offset_for_color_indexing; + wuffs_base__pixel_swizzler f_swizzler; - // DefaultValue returns an empty slice. - static DecodeCborArgQuirks DefaultValue(); + uint32_t p_decode_huffman_groups; + uint32_t p_decode_huffman_tree; + uint32_t p_decode_huffman_tree_simple; + uint32_t p_decode_code_length_code_lengths; + uint32_t p_build_code_lengths; + uint32_t p_decode_pixels_slow; + uint32_t p_decode_image_config; + uint32_t p_do_decode_image_config; + uint32_t p_do_decode_image_config_limited; + uint32_t p_do_decode_image_config_limited_vp8l; + uint32_t p_decode_frame_config; + uint32_t p_do_decode_frame_config; + uint32_t p_decode_frame; + uint32_t p_do_decode_frame; + uint32_t p_decode_transform; + uint32_t p_decode_color_cache_parameters; + uint32_t p_decode_hg_table; + uint32_t p_decode_pixels; + } private_impl; - wuffs_base__slice_u32 repr; -}; + struct { + uint8_t f_palette[1024]; + uint32_t f_color_cache[2048]; + uint16_t f_codes[2328]; + uint16_t f_code_lengths[2328]; + uint16_t f_code_lengths_huffman_nodes[37]; + uint16_t f_huffman_nodes[256][6267]; -// DecodeCbor calls callbacks based on the CBOR-formatted data in input. -// -// On success, the returned error_message is empty and cursor_position counts -// the number of bytes consumed. On failure, error_message is non-empty and -// cursor_position is the location of the error. That error may be a content -// error (invalid CBOR) or an input error (e.g. network failure). -DecodeCborResult // -DecodeCbor(DecodeCborCallbacks& callbacks, - sync_io::Input& input, - DecodeCborArgQuirks quirks = DecodeCborArgQuirks::DefaultValue()); + struct { + uint32_t v_hg; + uint32_t v_ht; + } s_decode_huffman_groups; + struct { + uint32_t v_use_second_symbol; + uint32_t v_first_symbol_n_bits; + uint32_t v_symbol0; + uint32_t v_base_offset; + } s_decode_huffman_tree_simple; + struct { + uint32_t v_n_codes; + uint32_t v_i; + } s_decode_code_length_code_lengths; + struct { + uint32_t v_length_n_bits; + uint16_t v_prev_code_length; + uint32_t v_s; + uint32_t v_s_max; + uint16_t v_node; + uint16_t v_repeat_value; + uint32_t v_repeat_n_bits; + } s_build_code_lengths; + struct { + uint64_t v_p; + uint64_t v_p_max; + uint32_t v_tile_size_log2; + uint32_t v_width_in_tiles; + uint32_t v_x; + uint32_t v_y; + uint32_t v_hg; + uint16_t v_node; + uint32_t v_color; + uint32_t v_back_ref_len_n_bits; + uint32_t v_back_ref_len_minus_1; + uint32_t v_back_ref_dist_n_bits; + uint32_t v_back_ref_dist_premap_minus_1; + uint64_t v_color_cache_p; + } s_decode_pixels_slow; + struct { + uint64_t scratch; + } s_do_decode_image_config; + struct { + uint64_t scratch; + } s_do_decode_image_config_limited; + struct { + uint64_t scratch; + } s_do_decode_image_config_limited_vp8l; + struct { + uint32_t v_width; + } s_do_decode_frame; + struct { + uint32_t v_transform_type; + uint32_t v_tile_size_log2; + } s_decode_transform; + struct { + uint32_t v_tile_size_log2; + } s_decode_hg_table; + } private_data; -} // namespace wuffs_aux +#ifdef __cplusplus +#if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + using unique_ptr = std::unique_ptr; -// ---------------- Auxiliary - Image + // On failure, the alloc_etc functions return nullptr. They don't throw. -namespace wuffs_aux { + static inline unique_ptr + alloc() { + return unique_ptr(wuffs_webp__decoder__alloc()); + } -struct DecodeImageResult { - DecodeImageResult(MemOwner&& pixbuf_mem_owner0, - wuffs_base__pixel_buffer pixbuf0, - std::string&& error_message0); - DecodeImageResult(std::string&& error_message0); + static inline wuffs_base__image_decoder::unique_ptr + alloc_as__wuffs_base__image_decoder() { + return wuffs_base__image_decoder::unique_ptr( + wuffs_webp__decoder__alloc_as__wuffs_base__image_decoder()); + } +#endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) - MemOwner pixbuf_mem_owner; - wuffs_base__pixel_buffer pixbuf; - std::string error_message; -}; +#if defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + // Disallow constructing or copying an object via standard C++ mechanisms, + // e.g. the "new" operator, as this struct is intentionally opaque. Its total + // size and field layout is not part of the public, stable, memory-safe API. + // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and + // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as + // their first argument) rather than tweaking bar.private_impl.qux fields. + // + // In C, we can just leave wuffs_foo__bar as an incomplete type (unless + // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in + // order to provide convenience methods. These forward on "this", so that you + // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". + wuffs_webp__decoder__struct() = delete; + wuffs_webp__decoder__struct(const wuffs_webp__decoder__struct&) = delete; + wuffs_webp__decoder__struct& operator=( + const wuffs_webp__decoder__struct&) = delete; +#endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) -// DecodeImageCallbacks are the callbacks given to DecodeImage. They are always -// called in this order: -// 1. SelectDecoder -// 2. HandleMetadata -// 3. SelectPixfmt -// 4. AllocPixbuf -// 5. AllocWorkbuf -// 6. Done -// -// It may return early - the third callback might not be invoked if the second -// one fails - but the final callback (Done) is always invoked. -class DecodeImageCallbacks { - public: - // AllocPixbufResult holds a memory allocation (the result of malloc or new, - // a statically allocated pointer, etc), or an error message. The memory is - // de-allocated when mem_owner goes out of scope and is destroyed. - struct AllocPixbufResult { - AllocPixbufResult(MemOwner&& mem_owner0, wuffs_base__pixel_buffer pixbuf0); - AllocPixbufResult(std::string&& error_message0); +#if !defined(WUFFS_IMPLEMENTATION) + // As above, the size of the struct is not part of the public API, and unless + // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap + // allocated, not stack allocated. Its size is not intended to be known at + // compile time, but it is unfortunately divulged as a side effect of + // defining C++ convenience methods. Use "sizeof__T()", calling the function, + // instead of "sizeof T", invoking the operator. To make the two values + // different, so that passing the latter will be rejected by the initialize + // function, we add an arbitrary amount of dead weight. + uint8_t dead_weight[123000000]; // 123 MB. +#endif // !defined(WUFFS_IMPLEMENTATION) - MemOwner mem_owner; - wuffs_base__pixel_buffer pixbuf; - std::string error_message; - }; + inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT + initialize( + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options) { + return wuffs_webp__decoder__initialize( + this, sizeof_star_self, wuffs_version, options); + } - // AllocWorkbufResult holds a memory allocation (the result of malloc or new, - // a statically allocated pointer, etc), or an error message. The memory is - // de-allocated when mem_owner goes out of scope and is destroyed. - struct AllocWorkbufResult { - AllocWorkbufResult(MemOwner&& mem_owner0, wuffs_base__slice_u8 workbuf0); - AllocWorkbufResult(std::string&& error_message0); + inline wuffs_base__image_decoder* + upcast_as__wuffs_base__image_decoder() { + return (wuffs_base__image_decoder*)this; + } - MemOwner mem_owner; - wuffs_base__slice_u8 workbuf; - std::string error_message; - }; + inline uint64_t + get_quirk( + uint32_t a_key) const { + return wuffs_webp__decoder__get_quirk(this, a_key); + } - virtual ~DecodeImageCallbacks(); + inline wuffs_base__status + set_quirk( + uint32_t a_key, + uint64_t a_value) { + return wuffs_webp__decoder__set_quirk(this, a_key, a_value); + } - // SelectDecoder returns the image decoder for the input data's file format. - // Returning a nullptr means failure (DecodeImage_UnsupportedImageFormat). - // - // Common formats will have a FourCC value in the range [1 ..= 0x7FFF_FFFF], - // such as WUFFS_BASE__FOURCC__JPEG. A zero FourCC value means that Wuffs' - // standard library did not recognize the image format but if SelectDecoder - // was overridden, it may examine the input data's starting bytes and still - // provide its own image decoder, e.g. for an exotic image file format that's - // not in Wuffs' standard library. The prefix_etc fields have the same - // meaning as wuffs_base__magic_number_guess_fourcc arguments. SelectDecoder - // implementations should not modify prefix_data's contents. - // - // SelectDecoder might be called more than once, since some image file - // formats can wrap others. For example, a nominal BMP file can actually - // contain a JPEG or a PNG. - // - // The default SelectDecoder accepts the FOURCC codes listed below. For - // modular builds (i.e. when #define'ing WUFFS_CONFIG__MODULES), acceptance - // of the ETC file format is optional (for each value of ETC) and depends on - // the corresponding module to be enabled at compile time (i.e. #define'ing - // WUFFS_CONFIG__MODULE__ETC). - // - WUFFS_BASE__FOURCC__BMP - // - WUFFS_BASE__FOURCC__GIF - // - WUFFS_BASE__FOURCC__JPEG - // - WUFFS_BASE__FOURCC__NIE - // - WUFFS_BASE__FOURCC__NPBM - // - WUFFS_BASE__FOURCC__PNG - // - WUFFS_BASE__FOURCC__TGA - // - WUFFS_BASE__FOURCC__WBMP - virtual wuffs_base__image_decoder::unique_ptr // - SelectDecoder(uint32_t fourcc, - wuffs_base__slice_u8 prefix_data, - bool prefix_closed); + inline wuffs_base__status + decode_image_config( + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + return wuffs_webp__decoder__decode_image_config(this, a_dst, a_src); + } - // HandleMetadata acknowledges image metadata. minfo.flavor will be one of: - // - WUFFS_BASE__MORE_INFORMATION__FLAVOR__METADATA_RAW_PASSTHROUGH - // - WUFFS_BASE__MORE_INFORMATION__FLAVOR__METADATA_PARSED - // If it is ETC__METADATA_RAW_ETC then raw contains the metadata bytes. Those - // bytes should not be retained beyond the the HandleMetadata call. - // - // minfo.metadata__fourcc() will typically match one of the - // DecodeImageArgFlags bits. For example, if (REPORT_METADATA_CHRM | - // REPORT_METADATA_GAMA) was passed to DecodeImage then the metadata FourCC - // will be either WUFFS_BASE__FOURCC__CHRM or WUFFS_BASE__FOURCC__GAMA. - // - // It returns an error message, or an empty string on success. - virtual std::string // - HandleMetadata(const wuffs_base__more_information& minfo, - wuffs_base__slice_u8 raw); + inline wuffs_base__status + decode_frame_config( + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + return wuffs_webp__decoder__decode_frame_config(this, a_dst, a_src); + } - // SelectPixfmt returns the destination pixel format for AllocPixbuf. It - // should return wuffs_base__make_pixel_format(etc) called with one of: - // - WUFFS_BASE__PIXEL_FORMAT__BGR_565 - // - WUFFS_BASE__PIXEL_FORMAT__BGR - // - WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL - // - WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE - // - WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL - // - WUFFS_BASE__PIXEL_FORMAT__RGB - // - WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL - // - WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL - // or return image_config.pixcfg.pixel_format(). The latter means to use the - // image file's natural pixel format. For example, GIF images' natural pixel - // format is an indexed one. - // - // Returning otherwise means failure (DecodeImage_UnsupportedPixelFormat). - // - // The default SelectPixfmt implementation returns - // wuffs_base__make_pixel_format(WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL) which - // is 4 bytes per pixel (8 bits per channel × 4 channels). - virtual wuffs_base__pixel_format // - SelectPixfmt(const wuffs_base__image_config& image_config); + inline wuffs_base__status + decode_frame( + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + return wuffs_webp__decoder__decode_frame(this, a_dst, a_src, a_blend, a_workbuf, a_opts); + } - // AllocPixbuf allocates the pixel buffer. - // - // allow_uninitialized_memory will be true if a valid background_color was - // passed to DecodeImage, since the pixel buffer's contents will be - // overwritten with that color after AllocPixbuf returns. - // - // The default AllocPixbuf implementation allocates either uninitialized or - // zeroed memory. Zeroed memory typically corresponds to filling with opaque - // black or transparent black, depending on the pixel format. - virtual AllocPixbufResult // - AllocPixbuf(const wuffs_base__image_config& image_config, - bool allow_uninitialized_memory); + inline wuffs_base__rect_ie_u32 + frame_dirty_rect() const { + return wuffs_webp__decoder__frame_dirty_rect(this); + } - // AllocWorkbuf allocates the work buffer. The allocated buffer's length - // should be at least len_range.min_incl, but larger allocations (up to - // len_range.max_incl) may have better performance (by using more memory). - // - // The default AllocWorkbuf implementation allocates len_range.max_incl bytes - // of either uninitialized or zeroed memory. - virtual AllocWorkbufResult // - AllocWorkbuf(wuffs_base__range_ii_u64 len_range, - bool allow_uninitialized_memory); + inline uint32_t + num_animation_loops() const { + return wuffs_webp__decoder__num_animation_loops(this); + } - // Done is always the last Callback method called by DecodeImage, whether or - // not parsing the input encountered an error. Even when successful, trailing - // data may remain in input and buffer. - // - // The image_decoder is the one returned by SelectDecoder (if SelectDecoder - // was successful), or a no-op unique_ptr otherwise. Like any unique_ptr, - // ownership moves to the Done implementation. - // - // Do not keep a reference to buffer or buffer.data.ptr after Done returns, - // as DecodeImage may then de-allocate the backing array. - // - // The default Done implementation is a no-op, other than running the - // image_decoder unique_ptr destructor. - virtual void // - Done(DecodeImageResult& result, - sync_io::Input& input, - IOBuffer& buffer, - wuffs_base__image_decoder::unique_ptr image_decoder); -}; + inline uint64_t + num_decoded_frame_configs() const { + return wuffs_webp__decoder__num_decoded_frame_configs(this); + } -extern const char DecodeImage_BufferIsTooShort[]; -extern const char DecodeImage_MaxInclDimensionExceeded[]; -extern const char DecodeImage_MaxInclMetadataLengthExceeded[]; -extern const char DecodeImage_OutOfMemory[]; -extern const char DecodeImage_UnexpectedEndOfFile[]; -extern const char DecodeImage_UnsupportedImageFormat[]; -extern const char DecodeImage_UnsupportedMetadata[]; -extern const char DecodeImage_UnsupportedPixelBlend[]; -extern const char DecodeImage_UnsupportedPixelConfiguration[]; -extern const char DecodeImage_UnsupportedPixelFormat[]; + inline uint64_t + num_decoded_frames() const { + return wuffs_webp__decoder__num_decoded_frames(this); + } -// The FooArgBar types add structure to Foo's optional arguments. They wrap -// inner representations for several reasons: -// - It provides a home for the DefaultValue static method, for Foo callers -// that want to override some but not all optional arguments. -// - It provides the "Bar" name at Foo call sites, which can help self- -// document Foo calls with many arguemnts. -// - It provides some type safety against accidentally transposing or omitting -// adjacent fundamentally-numeric-typed optional arguments. + inline wuffs_base__status + restart_frame( + uint64_t a_index, + uint64_t a_io_position) { + return wuffs_webp__decoder__restart_frame(this, a_index, a_io_position); + } -// DecodeImageArgQuirks wraps an optional argument to DecodeImage. -struct DecodeImageArgQuirks { - explicit DecodeImageArgQuirks(wuffs_base__slice_u32 repr0); - explicit DecodeImageArgQuirks(uint32_t* ptr, size_t len); + inline wuffs_base__empty_struct + set_report_metadata( + uint32_t a_fourcc, + bool a_report) { + return wuffs_webp__decoder__set_report_metadata(this, a_fourcc, a_report); + } - // DefaultValue returns an empty slice. - static DecodeImageArgQuirks DefaultValue(); + inline wuffs_base__status + tell_me_more( + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + return wuffs_webp__decoder__tell_me_more(this, a_dst, a_minfo, a_src); + } - wuffs_base__slice_u32 repr; -}; + inline wuffs_base__range_ii_u64 + workbuf_len() const { + return wuffs_webp__decoder__workbuf_len(this); + } -// DecodeImageArgFlags wraps an optional argument to DecodeImage. -struct DecodeImageArgFlags { - explicit DecodeImageArgFlags(uint64_t repr0); +#endif // __cplusplus +}; // struct wuffs_webp__decoder__struct - // DefaultValue returns 0. - static DecodeImageArgFlags DefaultValue(); +#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) - // TODO: support all of the REPORT_METADATA_ETC flags, not just CHRM, EXIF, - // GAMA, ICCP, KVP, SRGB and XMP. +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WEBP) || defined(WUFFS_NONMONOLITHIC) - // Background Color. - static constexpr uint64_t REPORT_METADATA_BGCL = 0x0001; - // Primary Chromaticities and White Point. - static constexpr uint64_t REPORT_METADATA_CHRM = 0x0002; - // Exchangeable Image File Format. - static constexpr uint64_t REPORT_METADATA_EXIF = 0x0004; - // Gamma Correction. - static constexpr uint64_t REPORT_METADATA_GAMA = 0x0008; - // International Color Consortium Profile. - static constexpr uint64_t REPORT_METADATA_ICCP = 0x0010; - // Key-Value Pair. - // - // For PNG files, this includes iTXt, tEXt and zTXt chunks. In the - // HandleMetadata callback, the raw argument contains UTF-8 strings. - static constexpr uint64_t REPORT_METADATA_KVP = 0x0020; - // Modification Time. - static constexpr uint64_t REPORT_METADATA_MTIM = 0x0040; - // Offset (2-Dimensional). - static constexpr uint64_t REPORT_METADATA_OFS2 = 0x0080; - // Physical Dimensions. - static constexpr uint64_t REPORT_METADATA_PHYD = 0x0100; - // Standard Red Green Blue (Rendering Intent). - static constexpr uint64_t REPORT_METADATA_SRGB = 0x0200; - // Extensible Metadata Platform. - static constexpr uint64_t REPORT_METADATA_XMP = 0x0400; +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH32) || defined(WUFFS_NONMONOLITHIC) - uint64_t repr; -}; +// ---------------- Status Codes -// DecodeImageArgPixelBlend wraps an optional argument to DecodeImage. -struct DecodeImageArgPixelBlend { - explicit DecodeImageArgPixelBlend(wuffs_base__pixel_blend repr0); +// ---------------- Public Consts - // DefaultValue returns WUFFS_BASE__PIXEL_BLEND__SRC. - static DecodeImageArgPixelBlend DefaultValue(); +// ---------------- Struct Declarations - wuffs_base__pixel_blend repr; -}; +typedef struct wuffs_xxhash32__hasher__struct wuffs_xxhash32__hasher; -// DecodeImageArgBackgroundColor wraps an optional argument to DecodeImage. -struct DecodeImageArgBackgroundColor { - explicit DecodeImageArgBackgroundColor( - wuffs_base__color_u32_argb_premul repr0); +#ifdef __cplusplus +extern "C" { +#endif - // DefaultValue returns 1, an invalid wuffs_base__color_u32_argb_premul. - static DecodeImageArgBackgroundColor DefaultValue(); +// ---------------- Public Initializer Prototypes - wuffs_base__color_u32_argb_premul repr; -}; +// For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, +// etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". +// +// Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. +// Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. -// DecodeImageArgMaxInclDimension wraps an optional argument to DecodeImage. -struct DecodeImageArgMaxInclDimension { - explicit DecodeImageArgMaxInclDimension(uint32_t repr0); +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_xxhash32__hasher__initialize( + wuffs_xxhash32__hasher* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options); - // DefaultValue returns 1048575 = 0x000F_FFFF, more than 1 million pixels. - static DecodeImageArgMaxInclDimension DefaultValue(); +size_t +sizeof__wuffs_xxhash32__hasher(void); - uint32_t repr; -}; +// ---------------- Allocs -// DecodeImageArgMaxInclMetadataLength wraps an optional argument to -// DecodeImage. -struct DecodeImageArgMaxInclMetadataLength { - explicit DecodeImageArgMaxInclMetadataLength(uint64_t repr0); +// These functions allocate and initialize Wuffs structs. They return NULL if +// memory allocation fails. If they return non-NULL, there is no need to call +// wuffs_foo__bar__initialize, but the caller is responsible for eventually +// calling free on the returned pointer. That pointer is effectively a C++ +// std::unique_ptr. - // DefaultValue returns 16777215 = 0x00FF_FFFF, one less than 16 MiB. - static DecodeImageArgMaxInclMetadataLength DefaultValue(); +wuffs_xxhash32__hasher* +wuffs_xxhash32__hasher__alloc(void); - uint64_t repr; -}; +static inline wuffs_base__hasher_u32* +wuffs_xxhash32__hasher__alloc_as__wuffs_base__hasher_u32(void) { + return (wuffs_base__hasher_u32*)(wuffs_xxhash32__hasher__alloc()); +} -// DecodeImage decodes the image data in input. A variety of image file formats -// can be decoded, depending on what callbacks.SelectDecoder returns. -// -// For animated formats, only the first frame is returned, since the API is -// simpler for synchronous I/O and having DecodeImage only return when -// completely done, but rendering animation often involves handling other -// events in between animation frames. To decode multiple frames of animated -// images, or for asynchronous I/O (e.g. when decoding an image streamed over -// the network), use Wuffs' lower level C API instead of its higher level, -// simplified C++ API (the wuffs_aux API). -// -// The DecodeImageResult's fields depend on whether decoding succeeded: -// - On total success, the error_message is empty and pixbuf.pixcfg.is_valid() -// is true. -// - On partial success (e.g. the input file was truncated but we are still -// able to decode some of the pixels), error_message is non-empty but -// pixbuf.pixcfg.is_valid() is still true. It is up to the caller whether to -// accept or reject partial success. -// - On failure, the error_message is non_empty and pixbuf.pixcfg.is_valid() -// is false. -// -// The callbacks allocate the pixel buffer memory and work buffer memory. On -// success, pixel buffer memory ownership is passed to the DecodeImage caller -// as the returned pixbuf_mem_owner. Regardless of success or failure, the work -// buffer memory is deleted. -// -// The pixel_blend (one of the constants listed below) determines how to -// composite the decoded image over the pixel buffer's original pixels (as -// returned by callbacks.AllocPixbuf): -// - WUFFS_BASE__PIXEL_BLEND__SRC -// - WUFFS_BASE__PIXEL_BLEND__SRC_OVER -// -// The background_color is used to fill the pixel buffer after -// callbacks.AllocPixbuf returns, if it is valid in the -// wuffs_base__color_u32_argb_premul__is_valid sense. The default value, -// 0x0000_0001, is not valid since its Blue channel value (0x01) is greater -// than its Alpha channel value (0x00). A valid background_color will typically -// be overwritten when pixel_blend is WUFFS_BASE__PIXEL_BLEND__SRC, but might -// still be visible on partial (not total) success or when pixel_blend is -// WUFFS_BASE__PIXEL_BLEND__SRC_OVER and the decoded image is not fully opaque. -// -// Decoding fails (with DecodeImage_MaxInclDimensionExceeded) if the image's -// width or height is greater than max_incl_dimension or if any opted-in (via -// flags bits) metadata is longer than max_incl_metadata_length. -DecodeImageResult // -DecodeImage(DecodeImageCallbacks& callbacks, - sync_io::Input& input, - DecodeImageArgQuirks quirks = DecodeImageArgQuirks::DefaultValue(), - DecodeImageArgFlags flags = DecodeImageArgFlags::DefaultValue(), - DecodeImageArgPixelBlend pixel_blend = - DecodeImageArgPixelBlend::DefaultValue(), - DecodeImageArgBackgroundColor background_color = - DecodeImageArgBackgroundColor::DefaultValue(), - DecodeImageArgMaxInclDimension max_incl_dimension = - DecodeImageArgMaxInclDimension::DefaultValue(), - DecodeImageArgMaxInclMetadataLength max_incl_metadata_length = - DecodeImageArgMaxInclMetadataLength::DefaultValue()); +// ---------------- Upcasts -} // namespace wuffs_aux +static inline wuffs_base__hasher_u32* +wuffs_xxhash32__hasher__upcast_as__wuffs_base__hasher_u32( + wuffs_xxhash32__hasher* p) { + return (wuffs_base__hasher_u32*)p; +} -// ---------------- Auxiliary - JSON +// ---------------- Public Function Prototypes -namespace wuffs_aux { +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_xxhash32__hasher__get_quirk( + const wuffs_xxhash32__hasher* self, + uint32_t a_key); -struct DecodeJsonResult { - DecodeJsonResult(std::string&& error_message0, uint64_t cursor_position0); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_xxhash32__hasher__set_quirk( + wuffs_xxhash32__hasher* self, + uint32_t a_key, + uint64_t a_value); - std::string error_message; - uint64_t cursor_position; -}; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_xxhash32__hasher__update( + wuffs_xxhash32__hasher* self, + wuffs_base__slice_u8 a_x); -class DecodeJsonCallbacks { - public: - virtual ~DecodeJsonCallbacks(); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_xxhash32__hasher__update_u32( + wuffs_xxhash32__hasher* self, + wuffs_base__slice_u8 a_x); - // AppendXxx are called for leaf nodes: literals, numbers and strings. For - // strings, the Callbacks implementation is responsible for tracking map keys - // versus other values. +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_xxhash32__hasher__checksum_u32( + const wuffs_xxhash32__hasher* self); - virtual std::string AppendNull() = 0; - virtual std::string AppendBool(bool val) = 0; - virtual std::string AppendF64(double val) = 0; - virtual std::string AppendI64(int64_t val) = 0; - virtual std::string AppendTextString(std::string&& val) = 0; +#ifdef __cplusplus +} // extern "C" +#endif - // Push and Pop are called for container nodes: JSON arrays (lists) and JSON - // objects (dictionaries). - // - // The flags bits combine exactly one of: - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_NONE - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_LIST - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_DICT - // and exactly one of: - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_NONE - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_LIST - // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_DICT +// ---------------- Struct Definitions - virtual std::string Push(uint32_t flags) = 0; - virtual std::string Pop(uint32_t flags) = 0; +// These structs' fields, and the sizeof them, are private implementation +// details that aren't guaranteed to be stable across Wuffs versions. +// +// See https://en.wikipedia.org/wiki/Opaque_pointer#C - // Done is always the last Callback method called by DecodeJson, whether or - // not parsing the input as JSON encountered an error. Even when successful, - // trailing data may remain in input and buffer. See "Unintuitive JSON - // Parsing" (https://nullprogram.com/blog/2019/12/28/) which discusses JSON - // parsing and when it stops. +#if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) + +struct wuffs_xxhash32__hasher__struct { + // Do not access the private_impl's or private_data's fields directly. There + // is no API/ABI compatibility or safety guarantee if you do so. Instead, use + // the wuffs_foo__bar__baz functions. // - // Do not keep a reference to buffer or buffer.data.ptr after Done returns, - // as DecodeJson may then de-allocate the backing array. + // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct + // can be stack allocated when WUFFS_IMPLEMENTATION is defined. + + struct { + uint32_t magic; + uint32_t active_coroutine; + wuffs_base__vtable vtable_for__wuffs_base__hasher_u32; + wuffs_base__vtable null_vtable; + + uint32_t f_length_modulo_u32; + bool f_length_overflows_u32; + uint8_t f_padding0; + uint8_t f_padding1; + uint8_t f_buf_len; + uint8_t f_buf_data[16]; + uint32_t f_v0; + uint32_t f_v1; + uint32_t f_v2; + uint32_t f_v3; + } private_impl; + +#ifdef __cplusplus +#if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + using unique_ptr = std::unique_ptr; + + // On failure, the alloc_etc functions return nullptr. They don't throw. + + static inline unique_ptr + alloc() { + return unique_ptr(wuffs_xxhash32__hasher__alloc()); + } + + static inline wuffs_base__hasher_u32::unique_ptr + alloc_as__wuffs_base__hasher_u32() { + return wuffs_base__hasher_u32::unique_ptr( + wuffs_xxhash32__hasher__alloc_as__wuffs_base__hasher_u32()); + } +#endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + +#if defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + // Disallow constructing or copying an object via standard C++ mechanisms, + // e.g. the "new" operator, as this struct is intentionally opaque. Its total + // size and field layout is not part of the public, stable, memory-safe API. + // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and + // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as + // their first argument) rather than tweaking bar.private_impl.qux fields. // - // The default Done implementation is a no-op. - virtual void // - Done(DecodeJsonResult& result, sync_io::Input& input, IOBuffer& buffer); -}; + // In C, we can just leave wuffs_foo__bar as an incomplete type (unless + // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in + // order to provide convenience methods. These forward on "this", so that you + // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". + wuffs_xxhash32__hasher__struct() = delete; + wuffs_xxhash32__hasher__struct(const wuffs_xxhash32__hasher__struct&) = delete; + wuffs_xxhash32__hasher__struct& operator=( + const wuffs_xxhash32__hasher__struct&) = delete; +#endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) -extern const char DecodeJson_BadJsonPointer[]; -extern const char DecodeJson_NoMatch[]; +#if !defined(WUFFS_IMPLEMENTATION) + // As above, the size of the struct is not part of the public API, and unless + // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap + // allocated, not stack allocated. Its size is not intended to be known at + // compile time, but it is unfortunately divulged as a side effect of + // defining C++ convenience methods. Use "sizeof__T()", calling the function, + // instead of "sizeof T", invoking the operator. To make the two values + // different, so that passing the latter will be rejected by the initialize + // function, we add an arbitrary amount of dead weight. + uint8_t dead_weight[123000000]; // 123 MB. +#endif // !defined(WUFFS_IMPLEMENTATION) -// The FooArgBar types add structure to Foo's optional arguments. They wrap -// inner representations for several reasons: -// - It provides a home for the DefaultValue static method, for Foo callers -// that want to override some but not all optional arguments. -// - It provides the "Bar" name at Foo call sites, which can help self- -// document Foo calls with many arguemnts. -// - It provides some type safety against accidentally transposing or omitting -// adjacent fundamentally-numeric-typed optional arguments. + inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT + initialize( + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options) { + return wuffs_xxhash32__hasher__initialize( + this, sizeof_star_self, wuffs_version, options); + } -// DecodeJsonArgQuirks wraps an optional argument to DecodeJson. -struct DecodeJsonArgQuirks { - explicit DecodeJsonArgQuirks(wuffs_base__slice_u32 repr0); - explicit DecodeJsonArgQuirks(uint32_t* ptr, size_t len); + inline wuffs_base__hasher_u32* + upcast_as__wuffs_base__hasher_u32() { + return (wuffs_base__hasher_u32*)this; + } - // DefaultValue returns an empty slice. - static DecodeJsonArgQuirks DefaultValue(); + inline uint64_t + get_quirk( + uint32_t a_key) const { + return wuffs_xxhash32__hasher__get_quirk(this, a_key); + } - wuffs_base__slice_u32 repr; -}; + inline wuffs_base__status + set_quirk( + uint32_t a_key, + uint64_t a_value) { + return wuffs_xxhash32__hasher__set_quirk(this, a_key, a_value); + } -// DecodeJsonArgJsonPointer wraps an optional argument to DecodeJson. -struct DecodeJsonArgJsonPointer { - explicit DecodeJsonArgJsonPointer(std::string repr0); + inline wuffs_base__empty_struct + update( + wuffs_base__slice_u8 a_x) { + return wuffs_xxhash32__hasher__update(this, a_x); + } - // DefaultValue returns an empty string. - static DecodeJsonArgJsonPointer DefaultValue(); + inline uint32_t + update_u32( + wuffs_base__slice_u8 a_x) { + return wuffs_xxhash32__hasher__update_u32(this, a_x); + } - std::string repr; -}; + inline uint32_t + checksum_u32() const { + return wuffs_xxhash32__hasher__checksum_u32(this); + } -// DecodeJson calls callbacks based on the JSON-formatted data in input. -// -// On success, the returned error_message is empty and cursor_position counts -// the number of bytes consumed. On failure, error_message is non-empty and -// cursor_position is the location of the error. That error may be a content -// error (invalid JSON) or an input error (e.g. network failure). -// -// json_pointer is a query in the JSON Pointer (RFC 6901) syntax. The callbacks -// run for the input's sub-node that matches the query. DecodeJson_NoMatch is -// returned if no matching sub-node was found. The empty query matches the -// input's root node, consistent with JSON Pointer semantics. -// -// The JSON Pointer implementation is greedy: duplicate keys are not rejected -// but only the first match for each '/'-separated fragment is followed. -DecodeJsonResult // -DecodeJson(DecodeJsonCallbacks& callbacks, - sync_io::Input& input, - DecodeJsonArgQuirks quirks = DecodeJsonArgQuirks::DefaultValue(), - DecodeJsonArgJsonPointer json_pointer = - DecodeJsonArgJsonPointer::DefaultValue()); +#endif // __cplusplus +}; // struct wuffs_xxhash32__hasher__struct -} // namespace wuffs_aux +#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -#endif // defined(__cplusplus) && defined(WUFFS_BASE__HAVE_UNIQUE_PTR) +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH32) || defined(WUFFS_NONMONOLITHIC) -// ‼ WUFFS C HEADER ENDS HERE. -#ifdef WUFFS_IMPLEMENTATION +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH64) || defined(WUFFS_NONMONOLITHIC) + +// ---------------- Status Codes + +// ---------------- Public Consts + +// ---------------- Struct Declarations + +typedef struct wuffs_xxhash64__hasher__struct wuffs_xxhash64__hasher; #ifdef __cplusplus extern "C" { #endif -// ---------------- Fundamentals - -// WUFFS_BASE__MAGIC is a magic number to check that initializers are called. -// It's not foolproof, given C doesn't automatically zero memory before use, -// but it should catch 99.99% of cases. -// -// Its (non-zero) value is arbitrary, based on md5sum("wuffs"). -#define WUFFS_BASE__MAGIC ((uint32_t)0x3CCB6C71) +// ---------------- Public Initializer Prototypes -// WUFFS_BASE__DISABLED is a magic number to indicate that a non-recoverable -// error was previously encountered. +// For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, +// etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". // -// Its (non-zero) value is arbitrary, based on md5sum("disabled"). -#define WUFFS_BASE__DISABLED ((uint32_t)0x075AE3D2) +// Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. +// Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. -// Use switch cases for coroutine suspension points, similar to the technique -// in https://www.chiark.greenend.org.uk/~sgtatham/coroutines.html -// -// The implicit fallthrough is intentional. -// -// We use trivial macros instead of an explicit assignment and case statement -// so that clang-format doesn't get confused by the unusual "case"s. -#define WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0 case 0:; -#define WUFFS_BASE__COROUTINE_SUSPENSION_POINT(n) \ - coro_susp_point = n; \ - case n:; +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_xxhash64__hasher__initialize( + wuffs_xxhash64__hasher* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options); -#define WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(n) \ - if (!status.repr) { \ - goto ok; \ - } else if (*status.repr != '$') { \ - goto exit; \ - } \ - coro_susp_point = n; \ - goto suspend; \ - case n:; +size_t +sizeof__wuffs_xxhash64__hasher(void); -// The "defined(__clang__)" isn't redundant. While vanilla clang defines -// __GNUC__, clang-cl (which mimics MSVC's cl.exe) does not. -#if defined(__GNUC__) || defined(__clang__) -#define WUFFS_BASE__LIKELY(expr) (__builtin_expect(!!(expr), 1)) -#define WUFFS_BASE__UNLIKELY(expr) (__builtin_expect(!!(expr), 0)) -#else -#define WUFFS_BASE__LIKELY(expr) (expr) -#define WUFFS_BASE__UNLIKELY(expr) (expr) -#endif +// ---------------- Allocs -// -------- +// These functions allocate and initialize Wuffs structs. They return NULL if +// memory allocation fails. If they return non-NULL, there is no need to call +// wuffs_foo__bar__initialize, but the caller is responsible for eventually +// calling free on the returned pointer. That pointer is effectively a C++ +// std::unique_ptr. -static inline wuffs_base__empty_struct // -wuffs_private_impl__ignore_status(wuffs_base__status z) { - return wuffs_base__make_empty_struct(); -} +wuffs_xxhash64__hasher* +wuffs_xxhash64__hasher__alloc(void); -static inline wuffs_base__status // -wuffs_private_impl__status__ensure_not_a_suspension(wuffs_base__status z) { - if (z.repr && (*z.repr == '$')) { - z.repr = wuffs_base__error__cannot_return_a_suspension; - } - return z; +static inline wuffs_base__hasher_u64* +wuffs_xxhash64__hasher__alloc_as__wuffs_base__hasher_u64(void) { + return (wuffs_base__hasher_u64*)(wuffs_xxhash64__hasher__alloc()); } -// -------- +// ---------------- Upcasts -// wuffs_private_impl__iterate_total_advance returns the exclusive -// pointer-offset at which iteration should stop. The overall slice has length -// total_len, each iteration's sub-slice has length iter_len and are placed -// iter_advance apart. -// -// The iter_advance may not be larger than iter_len. The iter_advance may be -// smaller than iter_len, in which case the sub-slices will overlap. -// -// The return value r satisfies ((0 <= r) && (r <= total_len)). -// -// For example, if total_len = 15, iter_len = 5 and iter_advance = 3, there are -// four iterations at offsets 0, 3, 6 and 9. This function returns 12. -// -// 0123456789012345 -// [....] -// [....] -// [....] -// [....] -// $ -// 0123456789012345 -// -// For example, if total_len = 15, iter_len = 5 and iter_advance = 5, there are -// three iterations at offsets 0, 5 and 10. This function returns 15. -// -// 0123456789012345 -// [....] -// [....] -// [....] -// $ -// 0123456789012345 -static inline size_t // -wuffs_private_impl__iterate_total_advance(size_t total_len, - size_t iter_len, - size_t iter_advance) { - if (total_len >= iter_len) { - size_t n = total_len - iter_len; - return ((n / iter_advance) * iter_advance) + iter_advance; - } - return 0; +static inline wuffs_base__hasher_u64* +wuffs_xxhash64__hasher__upcast_as__wuffs_base__hasher_u64( + wuffs_xxhash64__hasher* p) { + return (wuffs_base__hasher_u64*)p; } -// ---------------- Numeric Types - -extern const uint8_t wuffs_private_impl__low_bits_mask__u8[8]; -extern const uint16_t wuffs_private_impl__low_bits_mask__u16[16]; -extern const uint32_t wuffs_private_impl__low_bits_mask__u32[32]; -extern const uint64_t wuffs_private_impl__low_bits_mask__u64[64]; +// ---------------- Public Function Prototypes -#define WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U8(n) \ - (wuffs_private_impl__low_bits_mask__u8[n]) -#define WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U16(n) \ - (wuffs_private_impl__low_bits_mask__u16[n]) -#define WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(n) \ - (wuffs_private_impl__low_bits_mask__u32[n]) -#define WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U64(n) \ - (wuffs_private_impl__low_bits_mask__u64[n]) +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_xxhash64__hasher__get_quirk( + const wuffs_xxhash64__hasher* self, + uint32_t a_key); -// -------- +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_xxhash64__hasher__set_quirk( + wuffs_xxhash64__hasher* self, + uint32_t a_key, + uint64_t a_value); -static inline void // -wuffs_private_impl__u8__sat_add_indirect(uint8_t* x, uint8_t y) { - *x = wuffs_base__u8__sat_add(*x, y); -} +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_xxhash64__hasher__update( + wuffs_xxhash64__hasher* self, + wuffs_base__slice_u8 a_x); -static inline void // -wuffs_private_impl__u8__sat_sub_indirect(uint8_t* x, uint8_t y) { - *x = wuffs_base__u8__sat_sub(*x, y); -} +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_xxhash64__hasher__update_u64( + wuffs_xxhash64__hasher* self, + wuffs_base__slice_u8 a_x); -static inline void // -wuffs_private_impl__u16__sat_add_indirect(uint16_t* x, uint16_t y) { - *x = wuffs_base__u16__sat_add(*x, y); -} +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_xxhash64__hasher__checksum_u64( + const wuffs_xxhash64__hasher* self); -static inline void // -wuffs_private_impl__u16__sat_sub_indirect(uint16_t* x, uint16_t y) { - *x = wuffs_base__u16__sat_sub(*x, y); -} +#ifdef __cplusplus +} // extern "C" +#endif -static inline void // -wuffs_private_impl__u32__sat_add_indirect(uint32_t* x, uint32_t y) { - *x = wuffs_base__u32__sat_add(*x, y); -} +// ---------------- Struct Definitions -static inline void // -wuffs_private_impl__u32__sat_sub_indirect(uint32_t* x, uint32_t y) { - *x = wuffs_base__u32__sat_sub(*x, y); -} +// These structs' fields, and the sizeof them, are private implementation +// details that aren't guaranteed to be stable across Wuffs versions. +// +// See https://en.wikipedia.org/wiki/Opaque_pointer#C -static inline void // -wuffs_private_impl__u64__sat_add_indirect(uint64_t* x, uint64_t y) { - *x = wuffs_base__u64__sat_add(*x, y); -} +#if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -static inline void // -wuffs_private_impl__u64__sat_sub_indirect(uint64_t* x, uint64_t y) { - *x = wuffs_base__u64__sat_sub(*x, y); -} +struct wuffs_xxhash64__hasher__struct { + // Do not access the private_impl's or private_data's fields directly. There + // is no API/ABI compatibility or safety guarantee if you do so. Instead, use + // the wuffs_foo__bar__baz functions. + // + // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct + // can be stack allocated when WUFFS_IMPLEMENTATION is defined. -// ---------------- Numeric Types (Utility) + struct { + uint32_t magic; + uint32_t active_coroutine; + wuffs_base__vtable vtable_for__wuffs_base__hasher_u64; + wuffs_base__vtable null_vtable; -#define wuffs_base__utility__sign_extend_convert_u16_u32(a) \ - ((uint32_t)(int32_t)(int16_t)(a)) + uint64_t f_length_modulo_u64; + bool f_length_overflows_u64; + uint8_t f_padding0; + uint8_t f_padding1; + uint8_t f_padding2; + uint32_t f_buf_len; + uint8_t f_buf_data[32]; + uint64_t f_v0; + uint64_t f_v1; + uint64_t f_v2; + uint64_t f_v3; + } private_impl; -#define wuffs_base__utility__sign_extend_rshift_u32(a, n) \ - ((uint32_t)(((int32_t)(a)) >> (n))) +#ifdef __cplusplus +#if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + using unique_ptr = std::unique_ptr; -#define wuffs_base__utility__sign_extend_rshift_u64(a, n) \ - ((uint64_t)(((int64_t)(a)) >> (n))) + // On failure, the alloc_etc functions return nullptr. They don't throw. -#define wuffs_base__utility__make_bitvec256(e00, e01, e02, e03) \ - wuffs_base__make_bitvec256(e00, e01, e02, e03) + static inline unique_ptr + alloc() { + return unique_ptr(wuffs_xxhash64__hasher__alloc()); + } -#define wuffs_base__utility__make_optional_u63(h, v) \ - wuffs_base__make_optional_u63(h, v) + static inline wuffs_base__hasher_u64::unique_ptr + alloc_as__wuffs_base__hasher_u64() { + return wuffs_base__hasher_u64::unique_ptr( + wuffs_xxhash64__hasher__alloc_as__wuffs_base__hasher_u64()); + } +#endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) -// ---------------- Slices and Tables +#if defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + // Disallow constructing or copying an object via standard C++ mechanisms, + // e.g. the "new" operator, as this struct is intentionally opaque. Its total + // size and field layout is not part of the public, stable, memory-safe API. + // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and + // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as + // their first argument) rather than tweaking bar.private_impl.qux fields. + // + // In C, we can just leave wuffs_foo__bar as an incomplete type (unless + // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in + // order to provide convenience methods. These forward on "this", so that you + // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". + wuffs_xxhash64__hasher__struct() = delete; + wuffs_xxhash64__hasher__struct(const wuffs_xxhash64__hasher__struct&) = delete; + wuffs_xxhash64__hasher__struct& operator=( + const wuffs_xxhash64__hasher__struct&) = delete; +#endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) -// wuffs_private_impl__slice_u8__prefix returns up to the first up_to bytes of -// s. -static inline wuffs_base__slice_u8 // -wuffs_private_impl__slice_u8__prefix(wuffs_base__slice_u8 s, uint64_t up_to) { - if (((uint64_t)(s.len)) > up_to) { - s.len = ((size_t)up_to); - } - return s; -} +#if !defined(WUFFS_IMPLEMENTATION) + // As above, the size of the struct is not part of the public API, and unless + // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap + // allocated, not stack allocated. Its size is not intended to be known at + // compile time, but it is unfortunately divulged as a side effect of + // defining C++ convenience methods. Use "sizeof__T()", calling the function, + // instead of "sizeof T", invoking the operator. To make the two values + // different, so that passing the latter will be rejected by the initialize + // function, we add an arbitrary amount of dead weight. + uint8_t dead_weight[123000000]; // 123 MB. +#endif // !defined(WUFFS_IMPLEMENTATION) -// wuffs_private_impl__slice_u8__suffix returns up to the last up_to bytes of -// s. -static inline wuffs_base__slice_u8 // -wuffs_private_impl__slice_u8__suffix(wuffs_base__slice_u8 s, uint64_t up_to) { - if (((uint64_t)(s.len)) > up_to) { - s.ptr += ((uint64_t)(s.len)) - up_to; - s.len = ((size_t)up_to); + inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT + initialize( + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options) { + return wuffs_xxhash64__hasher__initialize( + this, sizeof_star_self, wuffs_version, options); } - return s; -} -// wuffs_private_impl__slice_u8__copy_from_slice calls memmove(dst.ptr, -// src.ptr, len) where len is the minimum of dst.len and src.len. -// -// Passing a wuffs_base__slice_u8 with all fields NULL or zero (a valid, empty -// slice) is valid and results in a no-op. -static inline uint64_t // -wuffs_private_impl__slice_u8__copy_from_slice(wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 src) { - size_t len = dst.len < src.len ? dst.len : src.len; - if (len > 0) { - memmove(dst.ptr, src.ptr, len); + inline wuffs_base__hasher_u64* + upcast_as__wuffs_base__hasher_u64() { + return (wuffs_base__hasher_u64*)this; } - return len; -} -static inline wuffs_base__empty_struct // -wuffs_private_impl__bulk_load_host_endian(void* ptr, - size_t len, - wuffs_base__slice_u8 src) { - if (len && (len <= src.len)) { - memmove(ptr, src.ptr, len); + inline uint64_t + get_quirk( + uint32_t a_key) const { + return wuffs_xxhash64__hasher__get_quirk(this, a_key); } - return wuffs_base__make_empty_struct(); -} -static inline wuffs_base__empty_struct // -wuffs_private_impl__bulk_memset(void* ptr, size_t len, uint8_t byte_value) { - if (len) { - memset(ptr, byte_value, len); + inline wuffs_base__status + set_quirk( + uint32_t a_key, + uint64_t a_value) { + return wuffs_xxhash64__hasher__set_quirk(this, a_key, a_value); } - return wuffs_base__make_empty_struct(); -} -static inline wuffs_base__empty_struct // -wuffs_private_impl__bulk_save_host_endian(void* ptr, - size_t len, - wuffs_base__slice_u8 dst) { - if (len && (len <= dst.len)) { - memmove(dst.ptr, ptr, len); + inline wuffs_base__empty_struct + update( + wuffs_base__slice_u8 a_x) { + return wuffs_xxhash64__hasher__update(this, a_x); } - return wuffs_base__make_empty_struct(); -} -// -------- + inline uint64_t + update_u64( + wuffs_base__slice_u8 a_x) { + return wuffs_xxhash64__hasher__update_u64(this, a_x); + } -static inline wuffs_base__slice_u8 // -wuffs_private_impl__table_u8__row_u32(wuffs_base__table_u8 t, uint32_t y) { - if (y < t.height) { - return wuffs_base__make_slice_u8(t.ptr + (t.stride * y), t.width); + inline uint64_t + checksum_u64() const { + return wuffs_xxhash64__hasher__checksum_u64(this); } - return wuffs_base__empty_slice_u8(); -} -// ---------------- Slices and Tables (Utility) +#endif // __cplusplus +}; // struct wuffs_xxhash64__hasher__struct -#define wuffs_base__utility__empty_slice_u8 wuffs_base__empty_slice_u8 +#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -// ---------------- Ranges and Rects +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH64) || defined(WUFFS_NONMONOLITHIC) -static inline uint32_t // -wuffs_private_impl__range_ii_u32__get_min_incl( - const wuffs_base__range_ii_u32* r) { - return r->min_incl; -} +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XZ) || defined(WUFFS_NONMONOLITHIC) -static inline uint32_t // -wuffs_private_impl__range_ii_u32__get_max_incl( - const wuffs_base__range_ii_u32* r) { - return r->max_incl; -} +// ---------------- Status Codes -static inline uint32_t // -wuffs_private_impl__range_ie_u32__get_min_incl( - const wuffs_base__range_ie_u32* r) { - return r->min_incl; -} +extern const char wuffs_xz__error__bad_bcj_offset[]; +extern const char wuffs_xz__error__bad_block_header[]; +extern const char wuffs_xz__error__bad_checksum[]; +extern const char wuffs_xz__error__bad_filter[]; +extern const char wuffs_xz__error__bad_footer[]; +extern const char wuffs_xz__error__bad_header[]; +extern const char wuffs_xz__error__bad_header_concatenated_stream[]; +extern const char wuffs_xz__error__bad_index[]; +extern const char wuffs_xz__error__bad_padding[]; +extern const char wuffs_xz__error__truncated_input[]; +extern const char wuffs_xz__error__unsupported_checksum_algorithm[]; +extern const char wuffs_xz__error__unsupported_filter[]; +extern const char wuffs_xz__error__unsupported_filter_combination[]; -static inline uint32_t // -wuffs_private_impl__range_ie_u32__get_max_excl( - const wuffs_base__range_ie_u32* r) { - return r->max_excl; -} +// ---------------- Public Consts -static inline uint64_t // -wuffs_private_impl__range_ii_u64__get_min_incl( - const wuffs_base__range_ii_u64* r) { - return r->min_incl; -} +#define WUFFS_XZ__QUIRK_DECODE_STANDALONE_CONCATENATED_STREAMS 1963655168u -static inline uint64_t // -wuffs_private_impl__range_ii_u64__get_max_incl( - const wuffs_base__range_ii_u64* r) { - return r->max_incl; -} +#define WUFFS_XZ__DECODER_DST_HISTORY_RETAIN_LENGTH_MAX_INCL_WORST_CASE 0u -static inline uint64_t // -wuffs_private_impl__range_ie_u64__get_min_incl( - const wuffs_base__range_ie_u64* r) { - return r->min_incl; -} +#define WUFFS_XZ__DECODER_WORKBUF_LEN_MAX_INCL_WORST_CASE 4294967568u -static inline uint64_t // -wuffs_private_impl__range_ie_u64__get_max_excl( - const wuffs_base__range_ie_u64* r) { - return r->max_excl; -} +// ---------------- Struct Declarations -// ---------------- Ranges and Rects (Utility) +typedef struct wuffs_xz__decoder__struct wuffs_xz__decoder; -#define wuffs_base__utility__empty_range_ii_u32 wuffs_base__empty_range_ii_u32 -#define wuffs_base__utility__empty_range_ie_u32 wuffs_base__empty_range_ie_u32 -#define wuffs_base__utility__empty_range_ii_u64 wuffs_base__empty_range_ii_u64 -#define wuffs_base__utility__empty_range_ie_u64 wuffs_base__empty_range_ie_u64 -#define wuffs_base__utility__empty_rect_ii_u32 wuffs_base__empty_rect_ii_u32 -#define wuffs_base__utility__empty_rect_ie_u32 wuffs_base__empty_rect_ie_u32 -#define wuffs_base__utility__make_range_ii_u32 wuffs_base__make_range_ii_u32 -#define wuffs_base__utility__make_range_ie_u32 wuffs_base__make_range_ie_u32 -#define wuffs_base__utility__make_range_ii_u64 wuffs_base__make_range_ii_u64 -#define wuffs_base__utility__make_range_ie_u64 wuffs_base__make_range_ie_u64 -#define wuffs_base__utility__make_rect_ii_u32 wuffs_base__make_rect_ii_u32 -#define wuffs_base__utility__make_rect_ie_u32 wuffs_base__make_rect_ie_u32 +#ifdef __cplusplus +extern "C" { +#endif -// ---------------- I/O +// ---------------- Public Initializer Prototypes -static inline uint64_t // -wuffs_private_impl__io__count_since(uint64_t mark, uint64_t index) { - if (index >= mark) { - return index - mark; - } - return 0; -} +// For any given "wuffs_foo__bar* self", "wuffs_foo__bar__initialize(self, +// etc)" should be called before any other "wuffs_foo__bar__xxx(self, etc)". +// +// Pass sizeof(*self) and WUFFS_VERSION for sizeof_star_self and wuffs_version. +// Pass 0 (or some combination of WUFFS_INITIALIZE__XXX) for options. -// TODO: drop the "const" in "const uint8_t* ptr". Some though required about -// the base.io_reader.since method returning a mutable "slice base.u8". -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wcast-qual" -#endif -static inline wuffs_base__slice_u8 // -wuffs_private_impl__io__since(uint64_t mark, - uint64_t index, - const uint8_t* ptr) { - if (index >= mark) { - return wuffs_base__make_slice_u8(((uint8_t*)ptr) + mark, - ((size_t)(index - mark))); - } - return wuffs_base__empty_slice_u8(); -} -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_xz__decoder__initialize( + wuffs_xz__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options); -// -------- +size_t +sizeof__wuffs_xz__decoder(void); -static inline void // -wuffs_private_impl__io_reader__limit(const uint8_t** ptr_io2_r, - const uint8_t* iop_r, - uint64_t limit) { - if (((uint64_t)(*ptr_io2_r - iop_r)) > limit) { - *ptr_io2_r = iop_r + limit; - } -} +// ---------------- Allocs -static inline uint32_t // -wuffs_private_impl__io_reader__limited_copy_u32_to_slice( - const uint8_t** ptr_iop_r, - const uint8_t* io2_r, - uint32_t length, - wuffs_base__slice_u8 dst) { - const uint8_t* iop_r = *ptr_iop_r; - size_t n = dst.len; - if (n > length) { - n = length; - } - if (n > ((size_t)(io2_r - iop_r))) { - n = (size_t)(io2_r - iop_r); - } - if (n > 0) { - memmove(dst.ptr, iop_r, n); - *ptr_iop_r += n; - } - return (uint32_t)(n); +// These functions allocate and initialize Wuffs structs. They return NULL if +// memory allocation fails. If they return non-NULL, there is no need to call +// wuffs_foo__bar__initialize, but the caller is responsible for eventually +// calling free on the returned pointer. That pointer is effectively a C++ +// std::unique_ptr. + +wuffs_xz__decoder* +wuffs_xz__decoder__alloc(void); + +static inline wuffs_base__io_transformer* +wuffs_xz__decoder__alloc_as__wuffs_base__io_transformer(void) { + return (wuffs_base__io_transformer*)(wuffs_xz__decoder__alloc()); } -// wuffs_private_impl__io_reader__match7 returns whether the io_reader's -// upcoming bytes start with the given prefix (up to 7 bytes long). It is -// peek-like, not read-like, in that there are no side-effects. -// -// The low 3 bits of a hold the prefix length, n. -// -// The high 56 bits of a hold the prefix itself, in little-endian order. The -// first prefix byte is in bits 8..=15, the second prefix byte is in bits -// 16..=23, etc. The high (8 * (7 - n)) bits are ignored. -// -// There are three possible return values: -// - 0 means success. -// - 1 means inconclusive, equivalent to "$short read". -// - 2 means failure. -static inline uint32_t // -wuffs_private_impl__io_reader__match7(const uint8_t* iop_r, - const uint8_t* io2_r, - wuffs_base__io_buffer* r, - uint64_t a) { - uint32_t n = a & 7; - a >>= 8; - if ((io2_r - iop_r) >= 8) { - uint64_t x = wuffs_base__peek_u64le__no_bounds_check(iop_r); - uint32_t shift = 8 * (8 - n); - return ((a << shift) == (x << shift)) ? 0 : 2; - } - for (; n > 0; n--) { - if (iop_r >= io2_r) { - return (r && r->meta.closed) ? 2 : 1; - } else if (*iop_r != ((uint8_t)(a))) { - return 2; - } - iop_r++; - a >>= 8; - } - return 0; +// ---------------- Upcasts + +static inline wuffs_base__io_transformer* +wuffs_xz__decoder__upcast_as__wuffs_base__io_transformer( + wuffs_xz__decoder* p) { + return (wuffs_base__io_transformer*)p; } -static inline wuffs_base__io_buffer* // -wuffs_private_impl__io_reader__set(wuffs_base__io_buffer* b, - const uint8_t** ptr_iop_r, - const uint8_t** ptr_io0_r, - const uint8_t** ptr_io1_r, - const uint8_t** ptr_io2_r, - wuffs_base__slice_u8 data, - uint64_t history_position) { - b->data = data; - b->meta.wi = data.len; - b->meta.ri = 0; - b->meta.pos = history_position; - b->meta.closed = false; +// ---------------- Public Function Prototypes - *ptr_iop_r = data.ptr; - *ptr_io0_r = data.ptr; - *ptr_io1_r = data.ptr; - *ptr_io2_r = data.ptr + data.len; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_xz__decoder__get_quirk( + const wuffs_xz__decoder* self, + uint32_t a_key); - return b; -} +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_xz__decoder__set_quirk( + wuffs_xz__decoder* self, + uint32_t a_key, + uint64_t a_value); -// -------- +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_xz__decoder__dst_history_retain_length( + const wuffs_xz__decoder* self); -static inline uint64_t // -wuffs_private_impl__io_writer__copy_from_slice(uint8_t** ptr_iop_w, - uint8_t* io2_w, - wuffs_base__slice_u8 src) { - uint8_t* iop_w = *ptr_iop_w; - size_t n = src.len; - if (n > ((size_t)(io2_w - iop_w))) { - n = (size_t)(io2_w - iop_w); - } - if (n > 0) { - memmove(iop_w, src.ptr, n); - *ptr_iop_w += n; - } - return (uint64_t)(n); -} +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_xz__decoder__workbuf_len( + const wuffs_xz__decoder* self); -static inline void // -wuffs_private_impl__io_writer__limit(uint8_t** ptr_io2_w, - uint8_t* iop_w, - uint64_t limit) { - if (((uint64_t)(*ptr_io2_w - iop_w)) > limit) { - *ptr_io2_w = iop_w + limit; - } -} +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_xz__decoder__transform_io( + wuffs_xz__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); -static inline uint32_t // -wuffs_private_impl__io_writer__limited_copy_u32_from_history( - uint8_t** ptr_iop_w, - uint8_t* io0_w, - uint8_t* io2_w, - uint32_t length, - uint32_t distance) { - if (!distance) { - return 0; - } - uint8_t* p = *ptr_iop_w; - if ((size_t)(p - io0_w) < (size_t)(distance)) { - return 0; - } - uint8_t* q = p - distance; - size_t n = (size_t)(io2_w - p); - if ((size_t)(length) > n) { - length = (uint32_t)(n); - } else { - n = (size_t)(length); - } - // TODO: unrolling by 3 seems best for the std/deflate benchmarks, but that - // is mostly because 3 is the minimum length for the deflate format. This - // function implementation shouldn't overfit to that one format. Perhaps the - // limited_copy_u32_from_history Wuffs method should also take an unroll hint - // argument, and the cgen can look if that argument is the constant - // expression '3'. - // - // See also wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast - // below. - for (; n >= 3; n -= 3) { - *p++ = *q++; - *p++ = *q++; - *p++ = *q++; - } - for (; n; n--) { - *p++ = *q++; - } - *ptr_iop_w = p; - return length; -} +#ifdef __cplusplus +} // extern "C" +#endif -// wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast is like -// the wuffs_private_impl__io_writer__limited_copy_u32_from_history function -// above, but has stronger pre-conditions. -// -// The caller needs to prove that: -// - length >= 1 -// - length <= (io2_w - *ptr_iop_w) -// - distance >= 1 -// - distance <= (*ptr_iop_w - io0_w) -static inline uint32_t // -wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast( - uint8_t** ptr_iop_w, - uint8_t* io0_w, - uint8_t* io2_w, - uint32_t length, - uint32_t distance) { - uint8_t* p = *ptr_iop_w; - uint8_t* q = p - distance; - uint32_t n = length; - for (; n >= 3; n -= 3) { - *p++ = *q++; - *p++ = *q++; - *p++ = *q++; - } - for (; n; n--) { - *p++ = *q++; - } - *ptr_iop_w = p; - return length; -} +// ---------------- Struct Definitions -// wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast_return_cusp -// is like the -// wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast function, -// but also returns the cusp: a byte pair (as a u16le) being the last byte of -// and next byte after the copied history. -// -// For example, if history was [10, 11, 12, 13, 14, 15, 16, 17, 18] then: -// - copying l=3, d=8 produces [11, 12, 13] and the cusp is (13, 14). -// - copying l=3, d=2 produces [17, 18, 17] and the cusp is (17, 18). +// These structs' fields, and the sizeof them, are private implementation +// details that aren't guaranteed to be stable across Wuffs versions. // -// The caller needs to prove that: -// - length >= 1 -// - length <= (io2_w - *ptr_iop_w) -// - distance >= 1 -// - distance <= (*ptr_iop_w - io0_w) -static inline uint32_t // -wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast_return_cusp( - uint8_t** ptr_iop_w, - uint8_t* io0_w, - uint8_t* io2_w, - uint32_t length, - uint32_t distance) { - uint8_t* p = *ptr_iop_w; - uint8_t* q = p - distance; - uint32_t n = length; - for (; n >= 3; n -= 3) { - *p++ = *q++; - *p++ = *q++; - *p++ = *q++; - } - for (; n; n--) { - *p++ = *q++; - } - *ptr_iop_w = p; - return (uint32_t)wuffs_base__peek_u16le__no_bounds_check(q - 1); -} +// See https://en.wikipedia.org/wiki/Opaque_pointer#C -// wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_distance_1_fast -// copies the previous byte (the one immediately before *ptr_iop_w), copying 8 -// byte chunks at a time. Each chunk contains 8 repetitions of the same byte. -// -// In terms of number of bytes copied, length is rounded up to a multiple of 8. -// As a special case, a zero length rounds up to 8 (even though 0 is already a -// multiple of 8), since there is always at least one 8 byte chunk copied. -// -// In terms of advancing *ptr_iop_w, length is not rounded up. -// -// The caller needs to prove that: -// - length >= 1 -// - (length + 8) <= (io2_w - *ptr_iop_w) -// - distance == 1 -// - distance <= (*ptr_iop_w - io0_w) -static inline uint32_t // -wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_distance_1_fast( - uint8_t** ptr_iop_w, - uint8_t* io0_w, - uint8_t* io2_w, - uint32_t length, - uint32_t distance) { - uint8_t* p = *ptr_iop_w; - uint64_t x = p[-1]; - x |= x << 8; - x |= x << 16; - x |= x << 32; - uint32_t n = length; - while (1) { - wuffs_base__poke_u64le__no_bounds_check(p, x); - if (n <= 8) { - p += n; - break; - } - p += 8; - n -= 8; - } - *ptr_iop_w = p; - return length; -} +#if defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -// wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast -// is like the -// wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast function -// above, but copies 8 byte chunks at a time. -// -// In terms of number of bytes copied, length is rounded up to a multiple of 8. -// As a special case, a zero length rounds up to 8 (even though 0 is already a -// multiple of 8), since there is always at least one 8 byte chunk copied. -// -// In terms of advancing *ptr_iop_w, length is not rounded up. -// -// The caller needs to prove that: -// - length >= 1 -// - (length + 8) <= (io2_w - *ptr_iop_w) -// - distance >= 8 -// - distance <= (*ptr_iop_w - io0_w) -static inline uint32_t // -wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast( - uint8_t** ptr_iop_w, - uint8_t* io0_w, - uint8_t* io2_w, - uint32_t length, - uint32_t distance) { - uint8_t* p = *ptr_iop_w; - uint8_t* q = p - distance; - uint32_t n = length; - while (1) { - memcpy(p, q, 8); - if (n <= 8) { - p += n; - break; - } - p += 8; - q += 8; - n -= 8; - } - *ptr_iop_w = p; - return length; -} +struct wuffs_xz__decoder__struct { + // Do not access the private_impl's or private_data's fields directly. There + // is no API/ABI compatibility or safety guarantee if you do so. Instead, use + // the wuffs_foo__bar__baz functions. + // + // It is a struct, not a struct*, so that the outermost wuffs_foo__bar struct + // can be stack allocated when WUFFS_IMPLEMENTATION is defined. -static inline uint32_t // -wuffs_private_impl__io_writer__limited_copy_u32_from_reader( - uint8_t** ptr_iop_w, - uint8_t* io2_w, - uint32_t length, - const uint8_t** ptr_iop_r, - const uint8_t* io2_r) { - uint8_t* iop_w = *ptr_iop_w; - size_t n = length; - if (n > ((size_t)(io2_w - iop_w))) { - n = (size_t)(io2_w - iop_w); - } - const uint8_t* iop_r = *ptr_iop_r; - if (n > ((size_t)(io2_r - iop_r))) { - n = (size_t)(io2_r - iop_r); - } - if (n > 0) { - memmove(iop_w, iop_r, n); - *ptr_iop_w += n; - *ptr_iop_r += n; - } - return (uint32_t)(n); -} + struct { + uint32_t magic; + uint32_t active_coroutine; + wuffs_base__vtable vtable_for__wuffs_base__io_transformer; + wuffs_base__vtable null_vtable; -static inline uint32_t // -wuffs_private_impl__io_writer__limited_copy_u32_from_slice( - uint8_t** ptr_iop_w, - uint8_t* io2_w, - uint32_t length, - wuffs_base__slice_u8 src) { - uint8_t* iop_w = *ptr_iop_w; - size_t n = src.len; - if (n > length) { - n = length; - } - if (n > ((size_t)(io2_w - iop_w))) { - n = (size_t)(io2_w - iop_w); - } - if (n > 0) { - memmove(iop_w, src.ptr, n); - *ptr_iop_w += n; - } - return (uint32_t)(n); -} + uint32_t f_filters[3]; + uint32_t f_num_non_final_filters; + uint8_t f_checksummer; + bool f_ignore_checksum; + bool f_standalone_format; + bool f_lzma_needs_reset; + bool f_block_has_compressed_size; + bool f_block_has_uncompressed_size; + uint8_t f_bcj_undo_index; + uint32_t f_bcj_pos; + uint32_t f_bcj_x86_prev_mask; + uint64_t f_block_compressed_size; + uint64_t f_block_uncompressed_size; + uint64_t f_compressed_size_for_index; + uint32_t f_verification_have_hashed_sizes[2]; + uint32_t f_verification_want_hashed_sizes[2]; + uint64_t f_verification_have_total_sizes[2]; + uint64_t f_verification_want_total_sizes[2]; + uint64_t f_num_actual_blocks; + uint64_t f_num_index_blocks; + uint64_t f_index_block_compressed_size; + uint64_t f_index_block_uncompressed_size; + uint64_t f_backwards_size; + bool f_started_verify_index; + uint16_t f_flags; + + uint8_t (*choosy_apply_non_final_filters)( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice); + uint32_t p_transform_io; + uint32_t p_do_transform_io; + uint32_t p_decode_block_header_with_padding; + uint32_t p_decode_block_header_sans_padding; + uint32_t p_verify_index; + uint32_t p_verify_footer; + } private_impl; -static inline wuffs_base__io_buffer* // -wuffs_private_impl__io_writer__set(wuffs_base__io_buffer* b, - uint8_t** ptr_iop_w, - uint8_t** ptr_io0_w, - uint8_t** ptr_io1_w, - uint8_t** ptr_io2_w, - wuffs_base__slice_u8 data, - uint64_t history_position) { - b->data = data; - b->meta.wi = 0; - b->meta.ri = 0; - b->meta.pos = history_position; - b->meta.closed = false; + struct { + uint8_t f_filter_data[3][256]; + wuffs_crc32__ieee_hasher f_crc32; + wuffs_crc64__ecma_hasher f_crc64; + wuffs_sha256__hasher f_sha256; + wuffs_lzma__decoder f_lzma; - *ptr_iop_w = data.ptr; - *ptr_io0_w = data.ptr; - *ptr_io1_w = data.ptr; - *ptr_io2_w = data.ptr + data.len; + struct { + uint32_t v_checksum32_have; + uint32_t v_checksum32_want; + wuffs_base__bitvec256 v_checksum256_have; + uint64_t v_compressed_size; + uint64_t v_uncompressed_size; + uint64_t scratch; + } s_do_transform_io; + struct { + uint64_t v_padded_size_have; + uint64_t v_padded_size_want; + } s_decode_block_header_with_padding; + struct { + uint8_t v_flags; + uint8_t v_filter_id; + uint32_t v_shift; + uint32_t v_f; + uint64_t scratch; + } s_decode_block_header_sans_padding; + struct { + uint32_t v_shift; + } s_verify_index; + struct { + uint64_t scratch; + } s_verify_footer; + } private_data; - return b; -} +#ifdef __cplusplus +#if defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + using unique_ptr = std::unique_ptr; -// ---------------- I/O (Utility) + // On failure, the alloc_etc functions return nullptr. They don't throw. -#define wuffs_base__utility__empty_io_reader wuffs_base__empty_io_reader -#define wuffs_base__utility__empty_io_writer wuffs_base__empty_io_writer + static inline unique_ptr + alloc() { + return unique_ptr(wuffs_xz__decoder__alloc()); + } -// ---------------- Tokens + static inline wuffs_base__io_transformer::unique_ptr + alloc_as__wuffs_base__io_transformer() { + return wuffs_base__io_transformer::unique_ptr( + wuffs_xz__decoder__alloc_as__wuffs_base__io_transformer()); + } +#endif // defined(WUFFS_BASE__HAVE_UNIQUE_PTR) -// ---------------- Tokens (Utility) +#if defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) + // Disallow constructing or copying an object via standard C++ mechanisms, + // e.g. the "new" operator, as this struct is intentionally opaque. Its total + // size and field layout is not part of the public, stable, memory-safe API. + // Use malloc or memcpy and the sizeof__wuffs_foo__bar function instead, and + // call wuffs_foo__bar__baz methods (which all take a "this"-like pointer as + // their first argument) rather than tweaking bar.private_impl.qux fields. + // + // In C, we can just leave wuffs_foo__bar as an incomplete type (unless + // WUFFS_IMPLEMENTATION is #define'd). In C++, we define a complete type in + // order to provide convenience methods. These forward on "this", so that you + // can write "bar->baz(etc)" instead of "wuffs_foo__bar__baz(bar, etc)". + wuffs_xz__decoder__struct() = delete; + wuffs_xz__decoder__struct(const wuffs_xz__decoder__struct&) = delete; + wuffs_xz__decoder__struct& operator=( + const wuffs_xz__decoder__struct&) = delete; +#endif // defined(WUFFS_BASE__HAVE_EQ_DELETE) && !defined(WUFFS_IMPLEMENTATION) -// ---------------- Memory Allocation +#if !defined(WUFFS_IMPLEMENTATION) + // As above, the size of the struct is not part of the public API, and unless + // WUFFS_IMPLEMENTATION is #define'd, this struct type T should be heap + // allocated, not stack allocated. Its size is not intended to be known at + // compile time, but it is unfortunately divulged as a side effect of + // defining C++ convenience methods. Use "sizeof__T()", calling the function, + // instead of "sizeof T", invoking the operator. To make the two values + // different, so that passing the latter will be rejected by the initialize + // function, we add an arbitrary amount of dead weight. + uint8_t dead_weight[123000000]; // 123 MB. +#endif // !defined(WUFFS_IMPLEMENTATION) -// ---------------- Images + inline wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT + initialize( + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options) { + return wuffs_xz__decoder__initialize( + this, sizeof_star_self, wuffs_version, options); + } -WUFFS_BASE__MAYBE_STATIC uint64_t // -wuffs_base__pixel_swizzler__limited_swizzle_u32_interleaved_from_reader( - const wuffs_base__pixel_swizzler* p, - uint32_t up_to_num_pixels, - wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 dst_palette, - const uint8_t** ptr_iop_r, - const uint8_t* io2_r); + inline wuffs_base__io_transformer* + upcast_as__wuffs_base__io_transformer() { + return (wuffs_base__io_transformer*)this; + } -WUFFS_BASE__MAYBE_STATIC uint64_t // -wuffs_base__pixel_swizzler__swizzle_interleaved_from_reader( - const wuffs_base__pixel_swizzler* p, - wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 dst_palette, - const uint8_t** ptr_iop_r, - const uint8_t* io2_r); + inline uint64_t + get_quirk( + uint32_t a_key) const { + return wuffs_xz__decoder__get_quirk(this, a_key); + } -WUFFS_BASE__MAYBE_STATIC uint64_t // -wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black( - const wuffs_base__pixel_swizzler* p, - wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 dst_palette, - uint64_t num_pixels); + inline wuffs_base__status + set_quirk( + uint32_t a_key, + uint64_t a_value) { + return wuffs_xz__decoder__set_quirk(this, a_key, a_value); + } -WUFFS_BASE__MAYBE_STATIC wuffs_base__status // -wuffs_base__pixel_swizzler__swizzle_ycck( - const wuffs_base__pixel_swizzler* p, - wuffs_base__pixel_buffer* dst, - wuffs_base__slice_u8 dst_palette, - uint32_t width, - uint32_t height, - wuffs_base__slice_u8 src0, - wuffs_base__slice_u8 src1, - wuffs_base__slice_u8 src2, - wuffs_base__slice_u8 src3, - uint32_t width0, - uint32_t width1, - uint32_t width2, - uint32_t width3, - uint32_t height0, - uint32_t height1, - uint32_t height2, - uint32_t height3, - uint32_t stride0, - uint32_t stride1, - uint32_t stride2, - uint32_t stride3, - uint8_t h0, - uint8_t h1, - uint8_t h2, - uint8_t h3, - uint8_t v0, - uint8_t v1, - uint8_t v2, - uint8_t v3, - bool is_rgb_or_cmyk, - bool triangle_filter_for_2to1, - wuffs_base__slice_u8 scratch_buffer_2k); + inline wuffs_base__optional_u63 + dst_history_retain_length() const { + return wuffs_xz__decoder__dst_history_retain_length(this); + } -// ---------------- Images (Utility) + inline wuffs_base__range_ii_u64 + workbuf_len() const { + return wuffs_xz__decoder__workbuf_len(this); + } -#define wuffs_base__utility__make_pixel_format wuffs_base__make_pixel_format + inline wuffs_base__status + transform_io( + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + return wuffs_xz__decoder__transform_io(this, a_dst, a_src, a_workbuf); + } -// ---------------- String Conversions +#endif // __cplusplus +}; // struct wuffs_xz__decoder__struct -// ---------------- Unicode and UTF-8 +#endif // defined(__cplusplus) || defined(WUFFS_IMPLEMENTATION) -// ---------------- +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XZ) || defined(WUFFS_NONMONOLITHIC) -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ - defined(WUFFS_CONFIG__MODULE__BASE__CORE) +#if defined(__cplusplus) && defined(WUFFS_BASE__HAVE_UNIQUE_PTR) -const uint8_t wuffs_private_impl__low_bits_mask__u8[8] = { - 0x00, 0x01, 0x03, 0x07, 0x0F, 0x1F, 0x3F, 0x7F, -}; +// ---------------- Auxiliary - Base -const uint16_t wuffs_private_impl__low_bits_mask__u16[16] = { - 0x0000, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F, 0x003F, 0x007F, - 0x00FF, 0x01FF, 0x03FF, 0x07FF, 0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF, -}; +// Auxiliary code is discussed at +// https://github.com/google/wuffs/blob/main/doc/note/auxiliary-code.md -const uint32_t wuffs_private_impl__low_bits_mask__u32[32] = { - 0x00000000, 0x00000001, 0x00000003, 0x00000007, 0x0000000F, 0x0000001F, - 0x0000003F, 0x0000007F, 0x000000FF, 0x000001FF, 0x000003FF, 0x000007FF, - 0x00000FFF, 0x00001FFF, 0x00003FFF, 0x00007FFF, 0x0000FFFF, 0x0001FFFF, - 0x0003FFFF, 0x0007FFFF, 0x000FFFFF, 0x001FFFFF, 0x003FFFFF, 0x007FFFFF, - 0x00FFFFFF, 0x01FFFFFF, 0x03FFFFFF, 0x07FFFFFF, 0x0FFFFFFF, 0x1FFFFFFF, - 0x3FFFFFFF, 0x7FFFFFFF, -}; +#include -const uint64_t wuffs_private_impl__low_bits_mask__u64[64] = { - 0x0000000000000000, 0x0000000000000001, 0x0000000000000003, - 0x0000000000000007, 0x000000000000000F, 0x000000000000001F, - 0x000000000000003F, 0x000000000000007F, 0x00000000000000FF, - 0x00000000000001FF, 0x00000000000003FF, 0x00000000000007FF, - 0x0000000000000FFF, 0x0000000000001FFF, 0x0000000000003FFF, - 0x0000000000007FFF, 0x000000000000FFFF, 0x000000000001FFFF, - 0x000000000003FFFF, 0x000000000007FFFF, 0x00000000000FFFFF, - 0x00000000001FFFFF, 0x00000000003FFFFF, 0x00000000007FFFFF, - 0x0000000000FFFFFF, 0x0000000001FFFFFF, 0x0000000003FFFFFF, - 0x0000000007FFFFFF, 0x000000000FFFFFFF, 0x000000001FFFFFFF, - 0x000000003FFFFFFF, 0x000000007FFFFFFF, 0x00000000FFFFFFFF, - 0x00000001FFFFFFFF, 0x00000003FFFFFFFF, 0x00000007FFFFFFFF, - 0x0000000FFFFFFFFF, 0x0000001FFFFFFFFF, 0x0000003FFFFFFFFF, - 0x0000007FFFFFFFFF, 0x000000FFFFFFFFFF, 0x000001FFFFFFFFFF, - 0x000003FFFFFFFFFF, 0x000007FFFFFFFFFF, 0x00000FFFFFFFFFFF, - 0x00001FFFFFFFFFFF, 0x00003FFFFFFFFFFF, 0x00007FFFFFFFFFFF, - 0x0000FFFFFFFFFFFF, 0x0001FFFFFFFFFFFF, 0x0003FFFFFFFFFFFF, - 0x0007FFFFFFFFFFFF, 0x000FFFFFFFFFFFFF, 0x001FFFFFFFFFFFFF, - 0x003FFFFFFFFFFFFF, 0x007FFFFFFFFFFFFF, 0x00FFFFFFFFFFFFFF, - 0x01FFFFFFFFFFFFFF, 0x03FFFFFFFFFFFFFF, 0x07FFFFFFFFFFFFFF, - 0x0FFFFFFFFFFFFFFF, 0x1FFFFFFFFFFFFFFF, 0x3FFFFFFFFFFFFFFF, - 0x7FFFFFFFFFFFFFFF, -}; +#include +#include -const uint32_t wuffs_private_impl__pixel_format__bits_per_channel[16] = { - 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, - 0x08, 0x0A, 0x0C, 0x10, 0x18, 0x20, 0x30, 0x40, -}; +namespace wuffs_aux { -const uint8_t // - wuffs_private_impl__placeholder_u8_with_non_null_address = 0; +using IOBuffer = wuffs_base__io_buffer; -const uint16_t // - wuffs_private_impl__placeholder_u16_with_non_null_address = 0; +// MemOwner represents ownership of some memory. Dynamically allocated memory +// (e.g. from malloc or new) is typically paired with free or delete, invoked +// when the std::unique_ptr is destroyed. Statically allocated memory might use +// MemOwner(nullptr, &free), even if that statically allocated memory is not +// nullptr, since calling free(nullptr) is a no-op. +using MemOwner = std::unique_ptr; -const uint32_t // - wuffs_private_impl__placeholder_u32_with_non_null_address = 0; +using QuirkKeyValuePair = std::pair; -const uint64_t // - wuffs_private_impl__placeholder_u64_with_non_null_address = 0; +namespace sync_io { -const wuffs_base__token // - wuffs_private_impl__placeholder_token_with_non_null_address = {0}; +// -------- -const char wuffs_base__note__i_o_redirect[] = "@base: I/O redirect"; -const char wuffs_base__note__end_of_data[] = "@base: end of data"; -const char wuffs_base__note__metadata_reported[] = "@base: metadata reported"; -const char wuffs_base__suspension__even_more_information[] = "$base: even more information"; -const char wuffs_base__suspension__mispositioned_read[] = "$base: mispositioned read"; -const char wuffs_base__suspension__mispositioned_write[] = "$base: mispositioned write"; -const char wuffs_base__suspension__short_read[] = "$base: short read"; -const char wuffs_base__suspension__short_write[] = "$base: short write"; -const char wuffs_base__error__bad_i_o_position[] = "#base: bad I/O position"; -const char wuffs_base__error__bad_argument_length_too_short[] = "#base: bad argument (length too short)"; -const char wuffs_base__error__bad_argument[] = "#base: bad argument"; -const char wuffs_base__error__bad_call_sequence[] = "#base: bad call sequence"; -const char wuffs_base__error__bad_data[] = "#base: bad data"; -const char wuffs_base__error__bad_receiver[] = "#base: bad receiver"; -const char wuffs_base__error__bad_restart[] = "#base: bad restart"; -const char wuffs_base__error__bad_sizeof_receiver[] = "#base: bad sizeof receiver"; -const char wuffs_base__error__bad_vtable[] = "#base: bad vtable"; -const char wuffs_base__error__bad_workbuf_length[] = "#base: bad workbuf length"; -const char wuffs_base__error__bad_wuffs_version[] = "#base: bad wuffs version"; -const char wuffs_base__error__cannot_return_a_suspension[] = "#base: cannot return a suspension"; -const char wuffs_base__error__disabled_by_previous_error[] = "#base: disabled by previous error"; -const char wuffs_base__error__initialize_falsely_claimed_already_zeroed[] = "#base: initialize falsely claimed already zeroed"; -const char wuffs_base__error__initialize_not_called[] = "#base: initialize not called"; -const char wuffs_base__error__insufficient_history[] = "#base: insufficient history"; -const char wuffs_base__error__interleaved_coroutine_calls[] = "#base: interleaved coroutine calls"; -const char wuffs_base__error__no_more_information[] = "#base: no more information"; -const char wuffs_base__error__not_enough_data[] = "#base: not enough data"; -const char wuffs_base__error__out_of_bounds[] = "#base: out of bounds"; -const char wuffs_base__error__unsupported_image_dimension[] = "#base: unsupported image dimension"; -const char wuffs_base__error__unsupported_method[] = "#base: unsupported method"; -const char wuffs_base__error__unsupported_option[] = "#base: unsupported option"; -const char wuffs_base__error__unsupported_pixel_swizzler_option[] = "#base: unsupported pixel swizzler option"; -const char wuffs_base__error__too_much_data[] = "#base: too much data"; +// DynIOBuffer is an IOBuffer that is backed by a dynamically sized byte array. +// It owns that backing array and will free it in its destructor. +// +// The array size can be explicitly extended (by calling the grow method) but, +// unlike a C++ std::vector, there is no implicit extension (e.g. by calling +// std::vector::insert) and its maximum size is capped by the max_incl +// constructor argument. +// +// It contains an IOBuffer-typed field whose reader side provides access to +// previously written bytes and whose writer side provides access to the +// allocated but not-yet-written-to slack space. For Go programmers, this slack +// space is roughly analogous to the s[len(s):cap(s)] space of a slice s. +class DynIOBuffer { + public: + enum GrowResult { + OK = 0, + FailedMaxInclExceeded = 1, + FailedOutOfMemory = 2, + }; -const char wuffs_base__hasher_u32__vtable_name[] = "{vtable}wuffs_base__hasher_u32"; -const char wuffs_base__hasher_u64__vtable_name[] = "{vtable}wuffs_base__hasher_u64"; -const char wuffs_base__hasher_bitvec256__vtable_name[] = "{vtable}wuffs_base__hasher_bitvec256"; -const char wuffs_base__image_decoder__vtable_name[] = "{vtable}wuffs_base__image_decoder"; -const char wuffs_base__io_transformer__vtable_name[] = "{vtable}wuffs_base__io_transformer"; -const char wuffs_base__token_decoder__vtable_name[] = "{vtable}wuffs_base__token_decoder"; + // m_buf holds the dynamically sized byte array and its read/write indexes: + // - m_buf.meta.wi is roughly analogous to a Go slice's length. + // - m_buf.data.len is roughly analogous to a Go slice's capacity. It is + // also equal to the m_buf.data.ptr malloc/realloc size. + // + // Users should not modify the m_buf.data.ptr or m_buf.data.len fields (as + // they are conceptually private to this class), but they can modify the + // bytes referenced by that pointer-length pair (e.g. compactions). + IOBuffer m_buf; -#endif // !defined(WUFFS_CONFIG__MODULES) || - // defined(WUFFS_CONFIG__MODULE__BASE) || - // defined(WUFFS_CONFIG__MODULE__BASE__CORE) + // m_max_incl is an inclusive upper bound on the backing array size. + const uint64_t m_max_incl; -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ - defined(WUFFS_CONFIG__MODULE__BASE__INTERFACES) + // Constructor and destructor. + explicit DynIOBuffer(uint64_t max_incl); + ~DynIOBuffer(); -// ---------------- Interface Definitions. + // Drop frees the byte array and resets m_buf. The DynIOBuffer can still be + // used after a drop call. It just restarts from zero. + void drop(); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_base__hasher_u32__checksum_u32( - const wuffs_base__hasher_u32* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } + // grow ensures that the byte array size is at least min_incl and at most + // max_incl. It returns FailedMaxInclExceeded if that would require + // allocating more than max_incl bytes, including the case where (min_incl > + // max_incl). It returns FailedOutOfMemory if memory allocation failed. + GrowResult grow(uint64_t min_incl); - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_u32__vtable_name) { - const wuffs_base__hasher_u32__func_ptrs* func_ptrs = - (const wuffs_base__hasher_u32__func_ptrs*)(v->function_pointers); - return (*func_ptrs->checksum_u32)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + private: + // Delete the copy and assign constructors. + DynIOBuffer(const DynIOBuffer&) = delete; + DynIOBuffer& operator=(const DynIOBuffer&) = delete; - return 0; -} + static uint64_t round_up(uint64_t min_incl, uint64_t max_incl); +}; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__hasher_u32__get_quirk( - const wuffs_base__hasher_u32* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } +// -------- - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_u32__vtable_name) { - const wuffs_base__hasher_u32__func_ptrs* func_ptrs = - (const wuffs_base__hasher_u32__func_ptrs*)(v->function_pointers); - return (*func_ptrs->get_quirk)(self, a_key); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +class Input { + public: + virtual ~Input(); - return 0; -} + virtual IOBuffer* BringsItsOwnIOBuffer(); + virtual std::string CopyIn(IOBuffer* dst) = 0; +}; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__hasher_u32__set_quirk( - wuffs_base__hasher_u32* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } +// -------- - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_u32__vtable_name) { - const wuffs_base__hasher_u32__func_ptrs* func_ptrs = - (const wuffs_base__hasher_u32__func_ptrs*)(v->function_pointers); - return (*func_ptrs->set_quirk)(self, a_key, a_value); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +// FileInput is an Input that reads from a file source. +// +// It does not take responsibility for closing the file when done. +class FileInput : public Input { + public: + FileInput(FILE* f); - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} + virtual std::string CopyIn(IOBuffer* dst); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_base__hasher_u32__update( - wuffs_base__hasher_u32* self, - wuffs_base__slice_u8 a_x) { - if (!self) { - return wuffs_base__make_empty_struct(); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_empty_struct(); - } + private: + FILE* m_f; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_u32__vtable_name) { - const wuffs_base__hasher_u32__func_ptrs* func_ptrs = - (const wuffs_base__hasher_u32__func_ptrs*)(v->function_pointers); - return (*func_ptrs->update)(self, a_x); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + // Delete the copy and assign constructors. + FileInput(const FileInput&) = delete; + FileInput& operator=(const FileInput&) = delete; +}; - return wuffs_base__make_empty_struct(); -} +// -------- -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_base__hasher_u32__update_u32( - wuffs_base__hasher_u32* self, - wuffs_base__slice_u8 a_x) { - if (!self) { - return 0; - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return 0; - } +// MemoryInput is an Input that reads from an in-memory source. +// +// It does not take responsibility for freeing the memory when done. +class MemoryInput : public Input { + public: + MemoryInput(const char* ptr, size_t len); + MemoryInput(const uint8_t* ptr, size_t len); - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_u32__vtable_name) { - const wuffs_base__hasher_u32__func_ptrs* func_ptrs = - (const wuffs_base__hasher_u32__func_ptrs*)(v->function_pointers); - return (*func_ptrs->update_u32)(self, a_x); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + virtual IOBuffer* BringsItsOwnIOBuffer(); + virtual std::string CopyIn(IOBuffer* dst); - return 0; -} + private: + IOBuffer m_io; -// -------- + // Delete the copy and assign constructors. + MemoryInput(const MemoryInput&) = delete; + MemoryInput& operator=(const MemoryInput&) = delete; +}; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__hasher_u64__checksum_u64( - const wuffs_base__hasher_u64* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } +// -------- - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_u64__vtable_name) { - const wuffs_base__hasher_u64__func_ptrs* func_ptrs = - (const wuffs_base__hasher_u64__func_ptrs*)(v->function_pointers); - return (*func_ptrs->checksum_u64)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +} // namespace sync_io - return 0; -} +} // namespace wuffs_aux -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__hasher_u64__get_quirk( - const wuffs_base__hasher_u64* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } +// ---------------- Auxiliary - CBOR - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_u64__vtable_name) { - const wuffs_base__hasher_u64__func_ptrs* func_ptrs = - (const wuffs_base__hasher_u64__func_ptrs*)(v->function_pointers); - return (*func_ptrs->get_quirk)(self, a_key); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +namespace wuffs_aux { - return 0; -} +struct DecodeCborResult { + DecodeCborResult(std::string&& error_message0, uint64_t cursor_position0); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__hasher_u64__set_quirk( - wuffs_base__hasher_u64* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } + std::string error_message; + uint64_t cursor_position; +}; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_u64__vtable_name) { - const wuffs_base__hasher_u64__func_ptrs* func_ptrs = - (const wuffs_base__hasher_u64__func_ptrs*)(v->function_pointers); - return (*func_ptrs->set_quirk)(self, a_key, a_value); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +class DecodeCborCallbacks { + public: + virtual ~DecodeCborCallbacks(); - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} + // AppendXxx are called for leaf nodes: literals, numbers, strings, etc. -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_base__hasher_u64__update( - wuffs_base__hasher_u64* self, - wuffs_base__slice_u8 a_x) { - if (!self) { - return wuffs_base__make_empty_struct(); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_empty_struct(); - } + virtual std::string AppendNull() = 0; + virtual std::string AppendUndefined() = 0; + virtual std::string AppendBool(bool val) = 0; + virtual std::string AppendF64(double val) = 0; + virtual std::string AppendI64(int64_t val) = 0; + virtual std::string AppendU64(uint64_t val) = 0; + virtual std::string AppendByteString(std::string&& val) = 0; + virtual std::string AppendTextString(std::string&& val) = 0; + virtual std::string AppendMinus1MinusX(uint64_t val) = 0; + virtual std::string AppendCborSimpleValue(uint8_t val) = 0; + virtual std::string AppendCborTag(uint64_t val) = 0; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_u64__vtable_name) { - const wuffs_base__hasher_u64__func_ptrs* func_ptrs = - (const wuffs_base__hasher_u64__func_ptrs*)(v->function_pointers); - return (*func_ptrs->update)(self, a_x); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + // Push and Pop are called for container nodes: CBOR arrays (lists) and CBOR + // maps (dictionaries). + // + // The flags bits combine exactly one of: + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_NONE + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_LIST + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_DICT + // and exactly one of: + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_NONE + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_LIST + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_DICT - return wuffs_base__make_empty_struct(); -} + virtual std::string Push(uint32_t flags) = 0; + virtual std::string Pop(uint32_t flags) = 0; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__hasher_u64__update_u64( - wuffs_base__hasher_u64* self, - wuffs_base__slice_u8 a_x) { - if (!self) { - return 0; - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return 0; - } + // Done is always the last Callback method called by DecodeCbor, whether or + // not parsing the input as CBOR encountered an error. Even when successful, + // trailing data may remain in input and buffer. + // + // Do not keep a reference to buffer or buffer.data.ptr after Done returns, + // as DecodeCbor may then de-allocate the backing array. + // + // The default Done implementation is a no-op. + virtual void // + Done(DecodeCborResult& result, sync_io::Input& input, IOBuffer& buffer); +}; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_u64__vtable_name) { - const wuffs_base__hasher_u64__func_ptrs* func_ptrs = - (const wuffs_base__hasher_u64__func_ptrs*)(v->function_pointers); - return (*func_ptrs->update_u64)(self, a_x); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +// The FooArgBar types add structure to Foo's optional arguments. They wrap +// inner representations for several reasons: +// - It provides a home for the DefaultValue static method, for Foo callers +// that want to override some but not all optional arguments. +// - It provides the "Bar" name at Foo call sites, which can help self- +// document Foo calls with many arguemnts. +// - It provides some type safety against accidentally transposing or omitting +// adjacent fundamentally-numeric-typed optional arguments. - return 0; -} +// DecodeCborArgQuirks wraps an optional argument to DecodeCbor. +struct DecodeCborArgQuirks { + explicit DecodeCborArgQuirks(const QuirkKeyValuePair* ptr0, + const size_t len0); -// -------- + // DefaultValue returns an empty slice. + static DecodeCborArgQuirks DefaultValue(); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__bitvec256 -wuffs_base__hasher_bitvec256__checksum_bitvec256( - const wuffs_base__hasher_bitvec256* self) { - if (!self) { - return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); - } + const QuirkKeyValuePair* ptr; + const size_t len; +}; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_bitvec256__vtable_name) { - const wuffs_base__hasher_bitvec256__func_ptrs* func_ptrs = - (const wuffs_base__hasher_bitvec256__func_ptrs*)(v->function_pointers); - return (*func_ptrs->checksum_bitvec256)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +// DecodeCbor calls callbacks based on the CBOR-formatted data in input. +// +// On success, the returned error_message is empty and cursor_position counts +// the number of bytes consumed. On failure, error_message is non-empty and +// cursor_position is the location of the error. That error may be a content +// error (invalid CBOR) or an input error (e.g. network failure). +DecodeCborResult // +DecodeCbor(DecodeCborCallbacks& callbacks, + sync_io::Input& input, + DecodeCborArgQuirks quirks = DecodeCborArgQuirks::DefaultValue()); - return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); -} +} // namespace wuffs_aux -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__hasher_bitvec256__get_quirk( - const wuffs_base__hasher_bitvec256* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } +// ---------------- Auxiliary - Image - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_bitvec256__vtable_name) { - const wuffs_base__hasher_bitvec256__func_ptrs* func_ptrs = - (const wuffs_base__hasher_bitvec256__func_ptrs*)(v->function_pointers); - return (*func_ptrs->get_quirk)(self, a_key); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +namespace wuffs_aux { - return 0; -} - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__hasher_bitvec256__set_quirk( - wuffs_base__hasher_bitvec256* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } +struct DecodeImageResult { + DecodeImageResult(MemOwner&& pixbuf_mem_owner0, + wuffs_base__pixel_buffer pixbuf0, + std::string&& error_message0); + DecodeImageResult(std::string&& error_message0); - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_bitvec256__vtable_name) { - const wuffs_base__hasher_bitvec256__func_ptrs* func_ptrs = - (const wuffs_base__hasher_bitvec256__func_ptrs*)(v->function_pointers); - return (*func_ptrs->set_quirk)(self, a_key, a_value); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + MemOwner pixbuf_mem_owner; + wuffs_base__pixel_buffer pixbuf; + std::string error_message; +}; - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} +// DecodeImageCallbacks are the callbacks given to DecodeImage. They are always +// called in this order: +// 1. SelectDecoder +// 2. HandleMetadata +// 3. SelectPixfmt +// 4. AllocPixbuf +// 5. AllocWorkbuf +// 6. Done +// +// It may return early - the third callback might not be invoked if the second +// one fails - but the final callback (Done) is always invoked. +class DecodeImageCallbacks { + public: + // AllocPixbufResult holds a memory allocation (the result of malloc or new, + // a statically allocated pointer, etc), or an error message. The memory is + // de-allocated when mem_owner goes out of scope and is destroyed. + struct AllocPixbufResult { + AllocPixbufResult(MemOwner&& mem_owner0, wuffs_base__pixel_buffer pixbuf0); + AllocPixbufResult(std::string&& error_message0); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_base__hasher_bitvec256__update( - wuffs_base__hasher_bitvec256* self, - wuffs_base__slice_u8 a_x) { - if (!self) { - return wuffs_base__make_empty_struct(); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_empty_struct(); - } + MemOwner mem_owner; + wuffs_base__pixel_buffer pixbuf; + std::string error_message; + }; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_bitvec256__vtable_name) { - const wuffs_base__hasher_bitvec256__func_ptrs* func_ptrs = - (const wuffs_base__hasher_bitvec256__func_ptrs*)(v->function_pointers); - return (*func_ptrs->update)(self, a_x); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + // AllocWorkbufResult holds a memory allocation (the result of malloc or new, + // a statically allocated pointer, etc), or an error message. The memory is + // de-allocated when mem_owner goes out of scope and is destroyed. + struct AllocWorkbufResult { + AllocWorkbufResult(MemOwner&& mem_owner0, wuffs_base__slice_u8 workbuf0); + AllocWorkbufResult(std::string&& error_message0); - return wuffs_base__make_empty_struct(); -} + MemOwner mem_owner; + wuffs_base__slice_u8 workbuf; + std::string error_message; + }; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__bitvec256 -wuffs_base__hasher_bitvec256__update_bitvec256( - wuffs_base__hasher_bitvec256* self, - wuffs_base__slice_u8 a_x) { - if (!self) { - return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); - } + virtual ~DecodeImageCallbacks(); - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__hasher_bitvec256__vtable_name) { - const wuffs_base__hasher_bitvec256__func_ptrs* func_ptrs = - (const wuffs_base__hasher_bitvec256__func_ptrs*)(v->function_pointers); - return (*func_ptrs->update_bitvec256)(self, a_x); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + // SelectDecoder returns the image decoder for the input data's file format. + // Returning a nullptr means failure (DecodeImage_UnsupportedImageFormat). + // + // Common formats will have a FourCC value in the range [1 ..= 0x7FFF_FFFF], + // such as WUFFS_BASE__FOURCC__JPEG. A zero FourCC value means that Wuffs' + // standard library did not recognize the image format but if SelectDecoder + // was overridden, it may examine the input data's starting bytes and still + // provide its own image decoder, e.g. for an exotic image file format that's + // not in Wuffs' standard library. The prefix_etc fields have the same + // meaning as wuffs_base__magic_number_guess_fourcc arguments. SelectDecoder + // implementations should not modify prefix_data's contents. + // + // SelectDecoder might be called more than once, since some image file + // formats can wrap others. For example, a nominal BMP file can actually + // contain a JPEG or a PNG. + // + // The default SelectDecoder accepts the FOURCC codes listed below. For + // modular builds (i.e. when #define'ing WUFFS_CONFIG__MODULES), acceptance + // of the FOO file format is optional (for each value of FOO) and depends on + // the corresponding module to be enabled at compile time (i.e. #define'ing + // WUFFS_CONFIG__MODULE__FOO). + // + // - WUFFS_BASE__FOURCC__BMP + // - WUFFS_BASE__FOURCC__ETC2 + // - WUFFS_BASE__FOURCC__GIF + // - WUFFS_BASE__FOURCC__JPEG + // - WUFFS_BASE__FOURCC__NIE + // - WUFFS_BASE__FOURCC__NPBM + // - WUFFS_BASE__FOURCC__PNG + // - WUFFS_BASE__FOURCC__QOI + // - WUFFS_BASE__FOURCC__TARGA + // - WUFFS_BASE__FOURCC__TH + // - WUFFS_BASE__FOURCC__WBMP + // - WUFFS_BASE__FOURCC__WEBP + // + // The FOOBAR in WUFFS_BASE__FOURCC__FOBA is limited to four characters, but + // the FOOBAR in the corresponding WUFFS_CONFIG__MODULE__FOOBAR macro might + // be fuller and longer. For example, NPBM / NETPBM or TH / THUMBHASH. + virtual wuffs_base__image_decoder::unique_ptr // + SelectDecoder(uint32_t fourcc, + wuffs_base__slice_u8 prefix_data, + bool prefix_closed); - return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); -} + // HandleMetadata acknowledges image metadata. minfo.flavor will be one of: + // - WUFFS_BASE__MORE_INFORMATION__FLAVOR__METADATA_RAW_PASSTHROUGH + // - WUFFS_BASE__MORE_INFORMATION__FLAVOR__METADATA_PARSED + // If it is METADATA_RAW_PASSTHROUGH then raw contains the metadata bytes. + // Those bytes should not be retained beyond the the HandleMetadata call. + // + // minfo.metadata__fourcc() will typically match one of the + // DecodeImageArgFlags bits. For example, if (REPORT_METADATA_CHRM | + // REPORT_METADATA_GAMA) was passed to DecodeImage then the metadata FourCC + // will be either WUFFS_BASE__FOURCC__CHRM or WUFFS_BASE__FOURCC__GAMA. + // + // It returns an error message, or an empty string on success. + virtual std::string // + HandleMetadata(const wuffs_base__more_information& minfo, + wuffs_base__slice_u8 raw); -// -------- + // SelectPixfmt returns the destination pixel format for AllocPixbuf. It + // should return wuffs_base__make_pixel_format(etc) called with one of: + // - WUFFS_BASE__PIXEL_FORMAT__Y + // - WUFFS_BASE__PIXEL_FORMAT__BGR_565 + // - WUFFS_BASE__PIXEL_FORMAT__BGR + // - WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL + // - WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE + // - WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL + // - WUFFS_BASE__PIXEL_FORMAT__RGB + // - WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL + // - WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL + // or return image_config.pixcfg.pixel_format(). The latter means to use the + // image file's natural pixel format. For example, GIF images' natural pixel + // format is an indexed one. + // + // Returning otherwise means failure (DecodeImage_UnsupportedPixelFormat). + // + // The default SelectPixfmt implementation returns + // wuffs_base__make_pixel_format(WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL) which + // is 4 bytes per pixel (8 bits per channel × 4 channels). + virtual wuffs_base__pixel_format // + SelectPixfmt(const wuffs_base__image_config& image_config); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__image_decoder__decode_frame( - wuffs_base__image_decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } + // AllocPixbuf allocates the pixel buffer. + // + // allow_uninitialized_memory will be true if a valid background_color was + // passed to DecodeImage, since the pixel buffer's contents will be + // overwritten with that color after AllocPixbuf returns. + // + // The default AllocPixbuf implementation allocates either uninitialized or + // zeroed memory. Zeroed memory typically corresponds to filling with opaque + // black or transparent black, depending on the pixel format. + virtual AllocPixbufResult // + AllocPixbuf(const wuffs_base__image_config& image_config, + bool allow_uninitialized_memory); - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->decode_frame)(self, a_dst, a_src, a_blend, a_workbuf, a_opts); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + // AllocWorkbuf allocates the work buffer. The allocated buffer's length + // should be at least len_range.min_incl, but larger allocations (up to + // len_range.max_incl) may have better performance (by using more memory). + // + // The default AllocWorkbuf implementation allocates len_range.max_incl bytes + // of either uninitialized or zeroed memory. + virtual AllocWorkbufResult // + AllocWorkbuf(wuffs_base__range_ii_u64 len_range, + bool allow_uninitialized_memory); - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} + // Done is always the last Callback method called by DecodeImage, whether or + // not parsing the input encountered an error. Even when successful, trailing + // data may remain in input and buffer. + // + // The image_decoder is the one returned by SelectDecoder (if SelectDecoder + // was successful), or a no-op unique_ptr otherwise. Like any unique_ptr, + // ownership moves to the Done implementation. + // + // Do not keep a reference to buffer or buffer.data.ptr after Done returns, + // as DecodeImage may then de-allocate the backing array. + // + // The default Done implementation is a no-op, other than running the + // image_decoder unique_ptr destructor. + virtual void // + Done(DecodeImageResult& result, + sync_io::Input& input, + IOBuffer& buffer, + wuffs_base__image_decoder::unique_ptr image_decoder); +}; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__image_decoder__decode_frame_config( - wuffs_base__image_decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } +extern const char DecodeImage_BufferIsTooShort[]; +extern const char DecodeImage_MaxInclDimensionExceeded[]; +extern const char DecodeImage_MaxInclMetadataLengthExceeded[]; +extern const char DecodeImage_OutOfMemory[]; +extern const char DecodeImage_UnexpectedEndOfFile[]; +extern const char DecodeImage_UnsupportedImageFormat[]; +extern const char DecodeImage_UnsupportedMetadata[]; +extern const char DecodeImage_UnsupportedPixelBlend[]; +extern const char DecodeImage_UnsupportedPixelConfiguration[]; +extern const char DecodeImage_UnsupportedPixelFormat[]; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->decode_frame_config)(self, a_dst, a_src); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +// The FooArgBar types add structure to Foo's optional arguments. They wrap +// inner representations for several reasons: +// - It provides a home for the DefaultValue static method, for Foo callers +// that want to override some but not all optional arguments. +// - It provides the "Bar" name at Foo call sites, which can help self- +// document Foo calls with many arguemnts. +// - It provides some type safety against accidentally transposing or omitting +// adjacent fundamentally-numeric-typed optional arguments. - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} +// DecodeImageArgQuirks wraps an optional argument to DecodeImage. +struct DecodeImageArgQuirks { + explicit DecodeImageArgQuirks(const QuirkKeyValuePair* ptr0, + const size_t len0); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__image_decoder__decode_image_config( - wuffs_base__image_decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } + // DefaultValue returns an empty slice. + static DecodeImageArgQuirks DefaultValue(); - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->decode_image_config)(self, a_dst, a_src); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + const QuirkKeyValuePair* ptr; + const size_t len; +}; - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} +// DecodeImageArgFlags wraps an optional argument to DecodeImage. +struct DecodeImageArgFlags { + explicit DecodeImageArgFlags(uint64_t repr0); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 -wuffs_base__image_decoder__frame_dirty_rect( - const wuffs_base__image_decoder* self) { - if (!self) { - return wuffs_base__utility__empty_rect_ie_u32(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_rect_ie_u32(); - } + // DefaultValue returns 0. + static DecodeImageArgFlags DefaultValue(); - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->frame_dirty_rect)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + // TODO: support all of the REPORT_METADATA_FOO flags, not just CHRM, EXIF, + // GAMA, ICCP, KVP, SRGB and XMP. - return wuffs_base__utility__empty_rect_ie_u32(); -} + // Background Color. + static constexpr uint64_t REPORT_METADATA_BGCL = 0x0001; + // Primary Chromaticities and White Point. + static constexpr uint64_t REPORT_METADATA_CHRM = 0x0002; + // Exchangeable Image File Format. + static constexpr uint64_t REPORT_METADATA_EXIF = 0x0004; + // Gamma Correction. + static constexpr uint64_t REPORT_METADATA_GAMA = 0x0008; + // International Color Consortium Profile. + static constexpr uint64_t REPORT_METADATA_ICCP = 0x0010; + // Key-Value Pair. + // + // For PNG files, this includes iTXt, tEXt and zTXt chunks. In the + // HandleMetadata callback, the raw argument contains UTF-8 strings. + static constexpr uint64_t REPORT_METADATA_KVP = 0x0020; + // Modification Time. + static constexpr uint64_t REPORT_METADATA_MTIM = 0x0040; + // Offset (2-Dimensional). + static constexpr uint64_t REPORT_METADATA_OFS2 = 0x0080; + // Physical Dimensions. + static constexpr uint64_t REPORT_METADATA_PHYD = 0x0100; + // Standard Red Green Blue (Rendering Intent). + static constexpr uint64_t REPORT_METADATA_SRGB = 0x0200; + // Extensible Metadata Platform. + static constexpr uint64_t REPORT_METADATA_XMP = 0x0400; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__image_decoder__get_quirk( - const wuffs_base__image_decoder* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } + uint64_t repr; +}; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->get_quirk)(self, a_key); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +// DecodeImageArgPixelBlend wraps an optional argument to DecodeImage. +struct DecodeImageArgPixelBlend { + explicit DecodeImageArgPixelBlend(wuffs_base__pixel_blend repr0); - return 0; -} + // DefaultValue returns WUFFS_BASE__PIXEL_BLEND__SRC. + static DecodeImageArgPixelBlend DefaultValue(); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_base__image_decoder__num_animation_loops( - const wuffs_base__image_decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } + wuffs_base__pixel_blend repr; +}; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->num_animation_loops)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +// DecodeImageArgBackgroundColor wraps an optional argument to DecodeImage. +struct DecodeImageArgBackgroundColor { + explicit DecodeImageArgBackgroundColor( + wuffs_base__color_u32_argb_premul repr0); - return 0; -} + // DefaultValue returns 1, an invalid wuffs_base__color_u32_argb_premul. + static DecodeImageArgBackgroundColor DefaultValue(); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__image_decoder__num_decoded_frame_configs( - const wuffs_base__image_decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } + wuffs_base__color_u32_argb_premul repr; +}; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->num_decoded_frame_configs)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +// DecodeImageArgMaxInclDimension wraps an optional argument to DecodeImage. +struct DecodeImageArgMaxInclDimension { + explicit DecodeImageArgMaxInclDimension(uint32_t repr0); - return 0; -} + // DefaultValue returns 1048575 = 0x000F_FFFF, more than 1 million pixels. + static DecodeImageArgMaxInclDimension DefaultValue(); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__image_decoder__num_decoded_frames( - const wuffs_base__image_decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } + uint32_t repr; +}; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->num_decoded_frames)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +// DecodeImageArgMaxInclMetadataLength wraps an optional argument to +// DecodeImage. +struct DecodeImageArgMaxInclMetadataLength { + explicit DecodeImageArgMaxInclMetadataLength(uint64_t repr0); - return 0; -} + // DefaultValue returns 16777215 = 0x00FF_FFFF, one less than 16 MiB. + static DecodeImageArgMaxInclMetadataLength DefaultValue(); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__image_decoder__restart_frame( - wuffs_base__image_decoder* self, - uint64_t a_index, - uint64_t a_io_position) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } + uint64_t repr; +}; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->restart_frame)(self, a_index, a_io_position); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +// DecodeImage decodes the image data in input. A variety of image file formats +// can be decoded, depending on what callbacks.SelectDecoder returns. +// +// For animated formats, only the first frame is returned, since the API is +// simpler for synchronous I/O and having DecodeImage only return when +// completely done, but rendering animation often involves handling other +// events in between animation frames. To decode multiple frames of animated +// images, or for asynchronous I/O (e.g. when decoding an image streamed over +// the network), use Wuffs' lower level C API instead of its higher level, +// simplified C++ API (the wuffs_aux API). +// +// The DecodeImageResult's fields depend on whether decoding succeeded: +// - On total success, the error_message is empty and pixbuf.pixcfg.is_valid() +// is true. +// - On partial success (e.g. the input file was truncated but we are still +// able to decode some of the pixels), error_message is non-empty but +// pixbuf.pixcfg.is_valid() is still true. It is up to the caller whether to +// accept or reject partial success. +// - On failure, the error_message is non_empty and pixbuf.pixcfg.is_valid() +// is false. +// +// The callbacks allocate the pixel buffer memory and work buffer memory. On +// success, pixel buffer memory ownership is passed to the DecodeImage caller +// as the returned pixbuf_mem_owner. Regardless of success or failure, the work +// buffer memory is deleted. +// +// The pixel_blend (one of the constants listed below) determines how to +// composite the decoded image over the pixel buffer's original pixels (as +// returned by callbacks.AllocPixbuf): +// - WUFFS_BASE__PIXEL_BLEND__SRC +// - WUFFS_BASE__PIXEL_BLEND__SRC_OVER +// +// The background_color is used to fill the pixel buffer after +// callbacks.AllocPixbuf returns, if it is valid in the +// wuffs_base__color_u32_argb_premul__is_valid sense. The default value, +// 0x0000_0001, is not valid since its Blue channel value (0x01) is greater +// than its Alpha channel value (0x00). A valid background_color will typically +// be overwritten when pixel_blend is WUFFS_BASE__PIXEL_BLEND__SRC, but might +// still be visible on partial (not total) success or when pixel_blend is +// WUFFS_BASE__PIXEL_BLEND__SRC_OVER and the decoded image is not fully opaque. +// +// Decoding fails (with DecodeImage_MaxInclDimensionExceeded) if the image's +// width or height is greater than max_incl_dimension or if any opted-in (via +// flags bits) metadata is longer than max_incl_metadata_length. +DecodeImageResult // +DecodeImage(DecodeImageCallbacks& callbacks, + sync_io::Input& input, + DecodeImageArgQuirks quirks = DecodeImageArgQuirks::DefaultValue(), + DecodeImageArgFlags flags = DecodeImageArgFlags::DefaultValue(), + DecodeImageArgPixelBlend pixel_blend = + DecodeImageArgPixelBlend::DefaultValue(), + DecodeImageArgBackgroundColor background_color = + DecodeImageArgBackgroundColor::DefaultValue(), + DecodeImageArgMaxInclDimension max_incl_dimension = + DecodeImageArgMaxInclDimension::DefaultValue(), + DecodeImageArgMaxInclMetadataLength max_incl_metadata_length = + DecodeImageArgMaxInclMetadataLength::DefaultValue()); - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} +} // namespace wuffs_aux -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__image_decoder__set_quirk( - wuffs_base__image_decoder* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } +// ---------------- Auxiliary - JSON - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->set_quirk)(self, a_key, a_value); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +namespace wuffs_aux { - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} +struct DecodeJsonResult { + DecodeJsonResult(std::string&& error_message0, uint64_t cursor_position0); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_base__image_decoder__set_report_metadata( - wuffs_base__image_decoder* self, - uint32_t a_fourcc, - bool a_report) { - if (!self) { - return wuffs_base__make_empty_struct(); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_empty_struct(); - } + std::string error_message; + uint64_t cursor_position; +}; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->set_report_metadata)(self, a_fourcc, a_report); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +class DecodeJsonCallbacks { + public: + virtual ~DecodeJsonCallbacks(); - return wuffs_base__make_empty_struct(); -} + // AppendXxx are called for leaf nodes: literals, numbers and strings. For + // strings, the Callbacks implementation is responsible for tracking map keys + // versus other values. -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__image_decoder__tell_me_more( - wuffs_base__image_decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } + virtual std::string AppendNull() = 0; + virtual std::string AppendBool(bool val) = 0; + virtual std::string AppendF64(double val) = 0; + virtual std::string AppendI64(int64_t val) = 0; + virtual std::string AppendTextString(std::string&& val) = 0; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->tell_me_more)(self, a_dst, a_minfo, a_src); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + // Push and Pop are called for container nodes: JSON arrays (lists) and JSON + // objects (dictionaries). + // + // The flags bits combine exactly one of: + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_NONE + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_LIST + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__FROM_DICT + // and exactly one of: + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_NONE + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_LIST + // - WUFFS_BASE__TOKEN__VBD__STRUCTURE__TO_DICT - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} + virtual std::string Push(uint32_t flags) = 0; + virtual std::string Pop(uint32_t flags) = 0; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_base__image_decoder__workbuf_len( - const wuffs_base__image_decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); - } + // Done is always the last Callback method called by DecodeJson, whether or + // not parsing the input as JSON encountered an error. Even when successful, + // trailing data may remain in input and buffer. See "Unintuitive JSON + // Parsing" (https://nullprogram.com/blog/2019/12/28/) which discusses JSON + // parsing and when it stops. + // + // Do not keep a reference to buffer or buffer.data.ptr after Done returns, + // as DecodeJson may then de-allocate the backing array. + // + // The default Done implementation is a no-op. + virtual void // + Done(DecodeJsonResult& result, sync_io::Input& input, IOBuffer& buffer); +}; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { - const wuffs_base__image_decoder__func_ptrs* func_ptrs = - (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->workbuf_len)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +extern const char DecodeJson_BadJsonPointer[]; +extern const char DecodeJson_NoMatch[]; - return wuffs_base__utility__empty_range_ii_u64(); -} +// The FooArgBar types add structure to Foo's optional arguments. They wrap +// inner representations for several reasons: +// - It provides a home for the DefaultValue static method, for Foo callers +// that want to override some but not all optional arguments. +// - It provides the "Bar" name at Foo call sites, which can help self- +// document Foo calls with many arguemnts. +// - It provides some type safety against accidentally transposing or omitting +// adjacent fundamentally-numeric-typed optional arguments. -// -------- +// DecodeJsonArgQuirks wraps an optional argument to DecodeJson. +struct DecodeJsonArgQuirks { + explicit DecodeJsonArgQuirks(const QuirkKeyValuePair* ptr0, + const size_t len0); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 -wuffs_base__io_transformer__dst_history_retain_length( - const wuffs_base__io_transformer* self) { - if (!self) { - return wuffs_base__utility__make_optional_u63(false, 0u); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__make_optional_u63(false, 0u); - } + // DefaultValue returns an empty slice. + static DecodeJsonArgQuirks DefaultValue(); - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { - const wuffs_base__io_transformer__func_ptrs* func_ptrs = - (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); - return (*func_ptrs->dst_history_retain_length)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + const QuirkKeyValuePair* ptr; + const size_t len; +}; - return wuffs_base__utility__make_optional_u63(false, 0u); -} +// DecodeJsonArgJsonPointer wraps an optional argument to DecodeJson. +struct DecodeJsonArgJsonPointer { + explicit DecodeJsonArgJsonPointer(std::string repr0); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__io_transformer__get_quirk( - const wuffs_base__io_transformer* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } + // DefaultValue returns an empty string. + static DecodeJsonArgJsonPointer DefaultValue(); - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { - const wuffs_base__io_transformer__func_ptrs* func_ptrs = - (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); - return (*func_ptrs->get_quirk)(self, a_key); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } + std::string repr; +}; - return 0; -} +// DecodeJson calls callbacks based on the JSON-formatted data in input. +// +// On success, the returned error_message is empty and cursor_position counts +// the number of bytes consumed. On failure, error_message is non-empty and +// cursor_position is the location of the error. That error may be a content +// error (invalid JSON) or an input error (e.g. network failure). +// +// json_pointer is a query in the JSON Pointer (RFC 6901) syntax. The callbacks +// run for the input's sub-node that matches the query. DecodeJson_NoMatch is +// returned if no matching sub-node was found. The empty query matches the +// input's root node, consistent with JSON Pointer semantics. +// +// The JSON Pointer implementation is greedy: duplicate keys are not rejected +// but only the first match for each '/'-separated fragment is followed. +DecodeJsonResult // +DecodeJson(DecodeJsonCallbacks& callbacks, + sync_io::Input& input, + DecodeJsonArgQuirks quirks = DecodeJsonArgQuirks::DefaultValue(), + DecodeJsonArgJsonPointer json_pointer = + DecodeJsonArgJsonPointer::DefaultValue()); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__io_transformer__set_quirk( - wuffs_base__io_transformer* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } +} // namespace wuffs_aux - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { - const wuffs_base__io_transformer__func_ptrs* func_ptrs = - (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); - return (*func_ptrs->set_quirk)(self, a_key, a_value); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +#endif // defined(__cplusplus) && defined(WUFFS_BASE__HAVE_UNIQUE_PTR) - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} +// ---------------- Wuffs' reimplementation of the STB API. +// +// This is a drop-in replacement of that third-party library. +// +// Disabled by default, unless you #define the +// WUFFS_CONFIG__ENABLE_DROP_IN_REPLACEMENT__STB macro beforehand. +// +// For API docs, see https://github.com/nothings/stb -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__io_transformer__transform_io( - wuffs_base__io_transformer* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } +#if defined(WUFFS_CONFIG__ENABLE_DROP_IN_REPLACEMENT__STB) - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { - const wuffs_base__io_transformer__func_ptrs* func_ptrs = - (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); - return (*func_ptrs->transform_io)(self, a_dst, a_src, a_workbuf); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +#ifdef __cplusplus +extern "C" { +#endif - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} +#if defined(WUFFS_CONFIG__STATIC_FUNCTIONS) || defined(STB_IMAGE_STATIC) +#define WUFFS_DROP_IN__STB__MAYBE_STATIC static +#else +#define WUFFS_DROP_IN__STB__MAYBE_STATIC +#endif -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_base__io_transformer__workbuf_len( - const wuffs_base__io_transformer* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); - } +enum { + STBI_default = 0, + STBI_grey = 1, + STBI_grey_alpha = 2, + STBI_rgb = 3, + STBI_rgb_alpha = 4 +}; - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { - const wuffs_base__io_transformer__func_ptrs* func_ptrs = - (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); - return (*func_ptrs->workbuf_len)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +typedef unsigned char stbi_uc; +typedef unsigned short stbi_us; - return wuffs_base__utility__empty_range_ii_u64(); -} +typedef struct { + int (*read)(void* user, char* data, int size); + void (*skip)(void* user, int n); + int (*eof)(void* user); +} stbi_io_callbacks; // -------- -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__token_decoder__decode_tokens( - wuffs_base__token_decoder* self, - wuffs_base__token_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } +WUFFS_DROP_IN__STB__MAYBE_STATIC int // +stbi_info_from_memory( // + stbi_uc const* buffer, // + int len, // + int* x, // + int* y, // + int* comp); + +WUFFS_DROP_IN__STB__MAYBE_STATIC stbi_uc* // +stbi_load_from_memory( // + stbi_uc const* buffer, // + int len, // + int* x, // + int* y, // + int* channels_in_file, // + int desired_channels); + +WUFFS_DROP_IN__STB__MAYBE_STATIC int // +stbi_info_from_callbacks( // + stbi_io_callbacks const* clbk, // + void* user, // + int* x, // + int* y, // + int* comp); + +WUFFS_DROP_IN__STB__MAYBE_STATIC stbi_uc* // +stbi_load_from_callbacks( // + stbi_io_callbacks const* clbk, // + void* user, // + int* x, // + int* y, // + int* channels_in_file, // + int desired_channels); - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__token_decoder__vtable_name) { - const wuffs_base__token_decoder__func_ptrs* func_ptrs = - (const wuffs_base__token_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->decode_tokens)(self, a_dst, a_src, a_workbuf); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +// -------- - return wuffs_base__make_status(wuffs_base__error__bad_vtable); -} +#if !defined(STBI_NO_STDIO) + +WUFFS_DROP_IN__STB__MAYBE_STATIC int // +stbi_info( // + char const* filename, // + int* x, // + int* y, // + int* comp); + +WUFFS_DROP_IN__STB__MAYBE_STATIC stbi_uc* // +stbi_load( // + char const* filename, // + int* x, // + int* y, // + int* channels_in_file, // + int desired_channels); + +WUFFS_DROP_IN__STB__MAYBE_STATIC int // +stbi_info_from_file( // + FILE* f, // + int* x, // + int* y, // + int* comp); + +WUFFS_DROP_IN__STB__MAYBE_STATIC stbi_uc* // +stbi_load_from_file( // + FILE* f, // + int* x, // + int* y, // + int* channels_in_file, // + int desired_channels); + +#endif // !defined(STBI_NO_STDIO) -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_base__token_decoder__get_quirk( - const wuffs_base__token_decoder* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } +// -------- - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__token_decoder__vtable_name) { - const wuffs_base__token_decoder__func_ptrs* func_ptrs = - (const wuffs_base__token_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->get_quirk)(self, a_key); - } else if (v->vtable_name == NULL) { - break; - } - v++; - } +WUFFS_DROP_IN__STB__MAYBE_STATIC void // +stbi_image_free( // + void* retval_from_stbi_load); - return 0; +WUFFS_DROP_IN__STB__MAYBE_STATIC const char* // +stbi_failure_reason(void); + +#ifdef __cplusplus } +#endif -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_base__token_decoder__set_quirk( - wuffs_base__token_decoder* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); +#endif // defined (WUFFS_CONFIG__ENABLE_DROP_IN_REPLACEMENT__STB) + +// ‼ WUFFS C HEADER ENDS HERE. +#ifdef WUFFS_IMPLEMENTATION + +#ifdef __cplusplus +extern "C" { +#endif + +// ---------------- Fundamentals + +// WUFFS_BASE__MAGIC is a magic number to check that initializers are called. +// It's not foolproof, given C doesn't automatically zero memory before use, +// but it should catch 99.99% of cases. +// +// Its (non-zero) value is arbitrary, based on md5sum("wuffs"). +#define WUFFS_BASE__MAGIC ((uint32_t)0x3CCB6C71) + +// WUFFS_BASE__DISABLED is a magic number to indicate that a non-recoverable +// error was previously encountered. +// +// Its (non-zero) value is arbitrary, based on md5sum("disabled"). +#define WUFFS_BASE__DISABLED ((uint32_t)0x075AE3D2) + +// Use switch cases for coroutine suspension points, similar to the technique +// in https://www.chiark.greenend.org.uk/~sgtatham/coroutines.html +// +// The implicit fallthrough is intentional. +// +// We use trivial macros instead of an explicit assignment and case statement +// so that clang-format doesn't get confused by the unusual "case"s. +#define WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0 case 0:; +#define WUFFS_BASE__COROUTINE_SUSPENSION_POINT(n) \ + coro_susp_point = n; \ + case n:; + +#define WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(n) \ + if (!status.repr) { \ + goto ok; \ + } else if (*status.repr != '$') { \ + goto exit; \ + } \ + coro_susp_point = n; \ + goto suspend; \ + case n:; + +// The "defined(__clang__)" isn't redundant. While vanilla clang defines +// __GNUC__, clang-cl (which mimics MSVC's cl.exe) does not. +#if defined(__GNUC__) || defined(__clang__) +#define WUFFS_BASE__LIKELY(expr) (__builtin_expect(!!(expr), 1)) +#define WUFFS_BASE__UNLIKELY(expr) (__builtin_expect(!!(expr), 0)) +#else +#define WUFFS_BASE__LIKELY(expr) (expr) +#define WUFFS_BASE__UNLIKELY(expr) (expr) +#endif + +// -------- + +static inline wuffs_base__empty_struct // +wuffs_private_impl__ignore_status(wuffs_base__status z) { + return wuffs_base__make_empty_struct(); +} + +static inline wuffs_base__status // +wuffs_private_impl__status__ensure_not_a_suspension(wuffs_base__status z) { + if (z.repr && (*z.repr == '$')) { + z.repr = wuffs_base__error__cannot_return_a_suspension; } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); + return z; +} + +// -------- + +// wuffs_private_impl__iterate_total_advance returns the exclusive +// pointer-offset at which iteration should stop. The overall slice has length +// total_len, each iteration's sub-slice has length iter_len and are placed +// iter_advance apart. +// +// The iter_advance may not be larger than iter_len. The iter_advance may be +// smaller than iter_len, in which case the sub-slices will overlap. +// +// The return value r satisfies ((0 <= r) && (r <= total_len)). +// +// For example, if total_len = 15, iter_len = 5 and iter_advance = 3, there are +// four iterations at offsets 0, 3, 6 and 9. This function returns 12. +// +// 0123456789012345 +// [....] +// [....] +// [....] +// [....] +// $ +// 0123456789012345 +// +// For example, if total_len = 15, iter_len = 5 and iter_advance = 5, there are +// three iterations at offsets 0, 5 and 10. This function returns 15. +// +// 0123456789012345 +// [....] +// [....] +// [....] +// $ +// 0123456789012345 +static inline size_t // +wuffs_private_impl__iterate_total_advance(size_t total_len, + size_t iter_len, + size_t iter_advance) { + if (total_len >= iter_len) { + size_t n = total_len - iter_len; + return ((n / iter_advance) * iter_advance) + iter_advance; } + return 0; +} - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__token_decoder__vtable_name) { - const wuffs_base__token_decoder__func_ptrs* func_ptrs = - (const wuffs_base__token_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->set_quirk)(self, a_key, a_value); - } else if (v->vtable_name == NULL) { - break; - } - v++; +// ---------------- Numeric Types + +extern const uint8_t wuffs_private_impl__low_bits_mask__u8[8]; +extern const uint16_t wuffs_private_impl__low_bits_mask__u16[16]; +extern const uint32_t wuffs_private_impl__low_bits_mask__u32[32]; +extern const uint64_t wuffs_private_impl__low_bits_mask__u64[64]; + +#define WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U8(n) \ + (wuffs_private_impl__low_bits_mask__u8[n]) +#define WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U16(n) \ + (wuffs_private_impl__low_bits_mask__u16[n]) +#define WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(n) \ + (wuffs_private_impl__low_bits_mask__u32[n]) +#define WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U64(n) \ + (wuffs_private_impl__low_bits_mask__u64[n]) + +// -------- + +static inline void // +wuffs_private_impl__u8__sat_add_indirect(uint8_t* x, uint8_t y) { + *x = wuffs_base__u8__sat_add(*x, y); +} + +static inline void // +wuffs_private_impl__u8__sat_sub_indirect(uint8_t* x, uint8_t y) { + *x = wuffs_base__u8__sat_sub(*x, y); +} + +static inline void // +wuffs_private_impl__u16__sat_add_indirect(uint16_t* x, uint16_t y) { + *x = wuffs_base__u16__sat_add(*x, y); +} + +static inline void // +wuffs_private_impl__u16__sat_sub_indirect(uint16_t* x, uint16_t y) { + *x = wuffs_base__u16__sat_sub(*x, y); +} + +static inline void // +wuffs_private_impl__u32__sat_add_indirect(uint32_t* x, uint32_t y) { + *x = wuffs_base__u32__sat_add(*x, y); +} + +static inline void // +wuffs_private_impl__u32__sat_sub_indirect(uint32_t* x, uint32_t y) { + *x = wuffs_base__u32__sat_sub(*x, y); +} + +static inline void // +wuffs_private_impl__u64__sat_add_indirect(uint64_t* x, uint64_t y) { + *x = wuffs_base__u64__sat_add(*x, y); +} + +static inline void // +wuffs_private_impl__u64__sat_sub_indirect(uint64_t* x, uint64_t y) { + *x = wuffs_base__u64__sat_sub(*x, y); +} + +// ---------------- Numeric Types (Utility) + +#define wuffs_base__utility__i64_divide(a, b) \ + ((uint64_t)(((int64_t)(a)) / ((int64_t)(b)))) + +#define wuffs_base__utility__sign_extend_convert_u8_u32(a) \ + ((uint32_t)(int32_t)(int8_t)(a)) + +#define wuffs_base__utility__sign_extend_convert_u8_u64(a) \ + ((uint64_t)(int64_t)(int8_t)(a)) + +#define wuffs_base__utility__sign_extend_convert_u16_u32(a) \ + ((uint32_t)(int32_t)(int16_t)(a)) + +#define wuffs_base__utility__sign_extend_convert_u16_u64(a) \ + ((uint64_t)(int64_t)(int16_t)(a)) + +#define wuffs_base__utility__sign_extend_convert_u32_u64(a) \ + ((uint64_t)(int64_t)(int32_t)(a)) + +#define wuffs_base__utility__sign_extend_rshift_u32(a, n) \ + ((uint32_t)(((int32_t)(a)) >> (n))) + +#define wuffs_base__utility__sign_extend_rshift_u64(a, n) \ + ((uint64_t)(((int64_t)(a)) >> (n))) + +#define wuffs_base__utility__make_bitvec256(e00, e01, e02, e03) \ + wuffs_base__make_bitvec256(e00, e01, e02, e03) + +#define wuffs_base__utility__make_optional_u63(h, v) \ + wuffs_base__make_optional_u63(h, v) + +// ---------------- Slices and Tables + +// This function basically returns (ptr + len), except that that expression is +// Undefined Behavior in C (but not C++) when ptr is NULL, even if len is zero. +// +// Precondition: (ptr != NULL) || (len == 0). +static inline const uint8_t* // +wuffs_private_impl__ptr_u8_plus_len(const uint8_t* ptr, size_t len) { + return ptr ? (ptr + len) : NULL; +} + +// -------- + +// wuffs_private_impl__slice_u8__prefix returns up to the first up_to bytes of +// s. +static inline wuffs_base__slice_u8 // +wuffs_private_impl__slice_u8__prefix(wuffs_base__slice_u8 s, uint64_t up_to) { + if (((uint64_t)(s.len)) > up_to) { + s.len = ((size_t)up_to); } + return s; +} - return wuffs_base__make_status(wuffs_base__error__bad_vtable); +// wuffs_private_impl__slice_u8__suffix returns up to the last up_to bytes of +// s. +static inline wuffs_base__slice_u8 // +wuffs_private_impl__slice_u8__suffix(wuffs_base__slice_u8 s, uint64_t up_to) { + if (((uint64_t)(s.len)) > up_to) { + s.ptr += ((uint64_t)(s.len)) - up_to; + s.len = ((size_t)up_to); + } + return s; } -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_base__token_decoder__workbuf_len( - const wuffs_base__token_decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); +// wuffs_private_impl__slice_u8__copy_from_slice calls memmove(dst.ptr, +// src.ptr, len) where len is the minimum of dst.len and src.len. +// +// Passing a wuffs_base__slice_u8 with all fields NULL or zero (a valid, empty +// slice) is valid and results in a no-op. +static inline uint64_t // +wuffs_private_impl__slice_u8__copy_from_slice(wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 src) { + size_t len = dst.len < src.len ? dst.len : src.len; + if (len > 0) { + memmove(dst.ptr, src.ptr, len); } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); + return len; +} + +static inline wuffs_base__empty_struct // +wuffs_private_impl__bulk_load_host_endian(void* ptr, + size_t len, + wuffs_base__slice_u8 src) { + if (len && (len <= src.len)) { + memmove(ptr, src.ptr, len); } + return wuffs_base__make_empty_struct(); +} - const wuffs_base__vtable* v = &self->private_impl.first_vtable; - int i; - for (i = 0; i < 63; i++) { - if (v->vtable_name == wuffs_base__token_decoder__vtable_name) { - const wuffs_base__token_decoder__func_ptrs* func_ptrs = - (const wuffs_base__token_decoder__func_ptrs*)(v->function_pointers); - return (*func_ptrs->workbuf_len)(self); - } else if (v->vtable_name == NULL) { - break; - } - v++; +static inline wuffs_base__empty_struct // +wuffs_private_impl__bulk_memset(void* ptr, size_t len, uint8_t byte_value) { + if (len) { + memset(ptr, byte_value, len); } + return wuffs_base__make_empty_struct(); +} - return wuffs_base__utility__empty_range_ii_u64(); +static inline wuffs_base__empty_struct // +wuffs_private_impl__bulk_save_host_endian(void* ptr, + size_t len, + wuffs_base__slice_u8 dst) { + if (len && (len <= dst.len)) { + memmove(dst.ptr, ptr, len); + } + return wuffs_base__make_empty_struct(); } -#endif // !defined(WUFFS_CONFIG__MODULES) || - // defined(WUFFS_CONFIG__MODULE__BASE) || - // defined(WUFFS_CONFIG__MODULE__BASE__INTERFACES) +// -------- -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ - defined(WUFFS_CONFIG__MODULE__BASE__FLOATCONV) +static inline wuffs_base__slice_u8 // +wuffs_private_impl__table_u8__row_u32(wuffs_base__table_u8 t, uint32_t y) { + if (t.ptr && (y < t.height)) { + return wuffs_base__make_slice_u8(t.ptr + (t.stride * y), t.width); + } + return wuffs_base__empty_slice_u8(); +} -// ---------------- IEEE 754 Floating Point +// ---------------- Slices and Tables (Utility) -// The etc__hpd_left_shift and etc__powers_of_5 tables were printed by -// script/print-hpd-left-shift.go. That script has an optional -comments flag, -// whose output is not copied here, which prints further detail. -// -// These tables are used in -// wuffs_private_impl__high_prec_dec__lshift_num_new_digits. +#define wuffs_base__utility__empty_slice_u8 wuffs_base__empty_slice_u8 -// wuffs_private_impl__hpd_left_shift[i] encodes the number of new digits -// created after multiplying a positive integer by (1 << i): the additional -// length in the decimal representation. For example, shifting "234" by 3 -// (equivalent to multiplying by 8) will produce "1872". Going from a 3-length -// string to a 4-length string means that 1 new digit was added (and existing -// digits may have changed). -// -// Shifting by i can add either N or N-1 new digits, depending on whether the -// original positive integer compares >= or < to the i'th power of 5 (as 10 -// equals 2 * 5). Comparison is lexicographic, not numerical. -// -// For example, shifting by 4 (i.e. multiplying by 16) can add 1 or 2 new -// digits, depending on a lexicographic comparison to (5 ** 4), i.e. "625": -// - ("1" << 4) is "16", which adds 1 new digit. -// - ("5678" << 4) is "90848", which adds 1 new digit. -// - ("624" << 4) is "9984", which adds 1 new digit. -// - ("62498" << 4) is "999968", which adds 1 new digit. -// - ("625" << 4) is "10000", which adds 2 new digits. -// - ("625001" << 4) is "10000016", which adds 2 new digits. -// - ("7008" << 4) is "112128", which adds 2 new digits. -// - ("99" << 4) is "1584", which adds 2 new digits. -// -// Thus, when i is 4, N is 2 and (5 ** i) is "625". This etc__hpd_left_shift -// array encodes this as: -// - etc__hpd_left_shift[4] is 0x1006 = (2 << 11) | 0x0006. -// - etc__hpd_left_shift[5] is 0x1009 = (? << 11) | 0x0009. -// where the ? isn't relevant for i == 4. -// -// The high 5 bits of etc__hpd_left_shift[i] is N, the higher of the two -// possible number of new digits. The low 11 bits are an offset into the -// etc__powers_of_5 array (of length 0x051C, so offsets fit in 11 bits). When i -// is 4, its offset and the next one is 6 and 9, and etc__powers_of_5[6 .. 9] -// is the string "\x06\x02\x05", so the relevant power of 5 is "625". -// -// Thanks to Ken Thompson for the original idea. -static const uint16_t wuffs_private_impl__hpd_left_shift[65] = { - 0x0000, 0x0800, 0x0801, 0x0803, 0x1006, 0x1009, 0x100D, 0x1812, 0x1817, - 0x181D, 0x2024, 0x202B, 0x2033, 0x203C, 0x2846, 0x2850, 0x285B, 0x3067, - 0x3073, 0x3080, 0x388E, 0x389C, 0x38AB, 0x38BB, 0x40CC, 0x40DD, 0x40EF, - 0x4902, 0x4915, 0x4929, 0x513E, 0x5153, 0x5169, 0x5180, 0x5998, 0x59B0, - 0x59C9, 0x61E3, 0x61FD, 0x6218, 0x6A34, 0x6A50, 0x6A6D, 0x6A8B, 0x72AA, - 0x72C9, 0x72E9, 0x7B0A, 0x7B2B, 0x7B4D, 0x8370, 0x8393, 0x83B7, 0x83DC, - 0x8C02, 0x8C28, 0x8C4F, 0x9477, 0x949F, 0x94C8, 0x9CF2, 0x051C, 0x051C, - 0x051C, 0x051C, -}; +// ---------------- Ranges and Rects -// wuffs_private_impl__powers_of_5 contains the powers of 5, concatenated -// together: "5", "25", "125", "625", "3125", etc. -static const uint8_t wuffs_private_impl__powers_of_5[0x051C] = { - 5, 2, 5, 1, 2, 5, 6, 2, 5, 3, 1, 2, 5, 1, 5, 6, 2, 5, 7, 8, 1, 2, 5, 3, 9, - 0, 6, 2, 5, 1, 9, 5, 3, 1, 2, 5, 9, 7, 6, 5, 6, 2, 5, 4, 8, 8, 2, 8, 1, 2, - 5, 2, 4, 4, 1, 4, 0, 6, 2, 5, 1, 2, 2, 0, 7, 0, 3, 1, 2, 5, 6, 1, 0, 3, 5, - 1, 5, 6, 2, 5, 3, 0, 5, 1, 7, 5, 7, 8, 1, 2, 5, 1, 5, 2, 5, 8, 7, 8, 9, 0, - 6, 2, 5, 7, 6, 2, 9, 3, 9, 4, 5, 3, 1, 2, 5, 3, 8, 1, 4, 6, 9, 7, 2, 6, 5, - 6, 2, 5, 1, 9, 0, 7, 3, 4, 8, 6, 3, 2, 8, 1, 2, 5, 9, 5, 3, 6, 7, 4, 3, 1, - 6, 4, 0, 6, 2, 5, 4, 7, 6, 8, 3, 7, 1, 5, 8, 2, 0, 3, 1, 2, 5, 2, 3, 8, 4, - 1, 8, 5, 7, 9, 1, 0, 1, 5, 6, 2, 5, 1, 1, 9, 2, 0, 9, 2, 8, 9, 5, 5, 0, 7, - 8, 1, 2, 5, 5, 9, 6, 0, 4, 6, 4, 4, 7, 7, 5, 3, 9, 0, 6, 2, 5, 2, 9, 8, 0, - 2, 3, 2, 2, 3, 8, 7, 6, 9, 5, 3, 1, 2, 5, 1, 4, 9, 0, 1, 1, 6, 1, 1, 9, 3, - 8, 4, 7, 6, 5, 6, 2, 5, 7, 4, 5, 0, 5, 8, 0, 5, 9, 6, 9, 2, 3, 8, 2, 8, 1, - 2, 5, 3, 7, 2, 5, 2, 9, 0, 2, 9, 8, 4, 6, 1, 9, 1, 4, 0, 6, 2, 5, 1, 8, 6, - 2, 6, 4, 5, 1, 4, 9, 2, 3, 0, 9, 5, 7, 0, 3, 1, 2, 5, 9, 3, 1, 3, 2, 2, 5, - 7, 4, 6, 1, 5, 4, 7, 8, 5, 1, 5, 6, 2, 5, 4, 6, 5, 6, 6, 1, 2, 8, 7, 3, 0, - 7, 7, 3, 9, 2, 5, 7, 8, 1, 2, 5, 2, 3, 2, 8, 3, 0, 6, 4, 3, 6, 5, 3, 8, 6, - 9, 6, 2, 8, 9, 0, 6, 2, 5, 1, 1, 6, 4, 1, 5, 3, 2, 1, 8, 2, 6, 9, 3, 4, 8, - 1, 4, 4, 5, 3, 1, 2, 5, 5, 8, 2, 0, 7, 6, 6, 0, 9, 1, 3, 4, 6, 7, 4, 0, 7, - 2, 2, 6, 5, 6, 2, 5, 2, 9, 1, 0, 3, 8, 3, 0, 4, 5, 6, 7, 3, 3, 7, 0, 3, 6, - 1, 3, 2, 8, 1, 2, 5, 1, 4, 5, 5, 1, 9, 1, 5, 2, 2, 8, 3, 6, 6, 8, 5, 1, 8, - 0, 6, 6, 4, 0, 6, 2, 5, 7, 2, 7, 5, 9, 5, 7, 6, 1, 4, 1, 8, 3, 4, 2, 5, 9, - 0, 3, 3, 2, 0, 3, 1, 2, 5, 3, 6, 3, 7, 9, 7, 8, 8, 0, 7, 0, 9, 1, 7, 1, 2, - 9, 5, 1, 6, 6, 0, 1, 5, 6, 2, 5, 1, 8, 1, 8, 9, 8, 9, 4, 0, 3, 5, 4, 5, 8, - 5, 6, 4, 7, 5, 8, 3, 0, 0, 7, 8, 1, 2, 5, 9, 0, 9, 4, 9, 4, 7, 0, 1, 7, 7, - 2, 9, 2, 8, 2, 3, 7, 9, 1, 5, 0, 3, 9, 0, 6, 2, 5, 4, 5, 4, 7, 4, 7, 3, 5, - 0, 8, 8, 6, 4, 6, 4, 1, 1, 8, 9, 5, 7, 5, 1, 9, 5, 3, 1, 2, 5, 2, 2, 7, 3, - 7, 3, 6, 7, 5, 4, 4, 3, 2, 3, 2, 0, 5, 9, 4, 7, 8, 7, 5, 9, 7, 6, 5, 6, 2, - 5, 1, 1, 3, 6, 8, 6, 8, 3, 7, 7, 2, 1, 6, 1, 6, 0, 2, 9, 7, 3, 9, 3, 7, 9, - 8, 8, 2, 8, 1, 2, 5, 5, 6, 8, 4, 3, 4, 1, 8, 8, 6, 0, 8, 0, 8, 0, 1, 4, 8, - 6, 9, 6, 8, 9, 9, 4, 1, 4, 0, 6, 2, 5, 2, 8, 4, 2, 1, 7, 0, 9, 4, 3, 0, 4, - 0, 4, 0, 0, 7, 4, 3, 4, 8, 4, 4, 9, 7, 0, 7, 0, 3, 1, 2, 5, 1, 4, 2, 1, 0, - 8, 5, 4, 7, 1, 5, 2, 0, 2, 0, 0, 3, 7, 1, 7, 4, 2, 2, 4, 8, 5, 3, 5, 1, 5, - 6, 2, 5, 7, 1, 0, 5, 4, 2, 7, 3, 5, 7, 6, 0, 1, 0, 0, 1, 8, 5, 8, 7, 1, 1, - 2, 4, 2, 6, 7, 5, 7, 8, 1, 2, 5, 3, 5, 5, 2, 7, 1, 3, 6, 7, 8, 8, 0, 0, 5, - 0, 0, 9, 2, 9, 3, 5, 5, 6, 2, 1, 3, 3, 7, 8, 9, 0, 6, 2, 5, 1, 7, 7, 6, 3, - 5, 6, 8, 3, 9, 4, 0, 0, 2, 5, 0, 4, 6, 4, 6, 7, 7, 8, 1, 0, 6, 6, 8, 9, 4, - 5, 3, 1, 2, 5, 8, 8, 8, 1, 7, 8, 4, 1, 9, 7, 0, 0, 1, 2, 5, 2, 3, 2, 3, 3, - 8, 9, 0, 5, 3, 3, 4, 4, 7, 2, 6, 5, 6, 2, 5, 4, 4, 4, 0, 8, 9, 2, 0, 9, 8, - 5, 0, 0, 6, 2, 6, 1, 6, 1, 6, 9, 4, 5, 2, 6, 6, 7, 2, 3, 6, 3, 2, 8, 1, 2, - 5, 2, 2, 2, 0, 4, 4, 6, 0, 4, 9, 2, 5, 0, 3, 1, 3, 0, 8, 0, 8, 4, 7, 2, 6, - 3, 3, 3, 6, 1, 8, 1, 6, 4, 0, 6, 2, 5, 1, 1, 1, 0, 2, 2, 3, 0, 2, 4, 6, 2, - 5, 1, 5, 6, 5, 4, 0, 4, 2, 3, 6, 3, 1, 6, 6, 8, 0, 9, 0, 8, 2, 0, 3, 1, 2, - 5, 5, 5, 5, 1, 1, 1, 5, 1, 2, 3, 1, 2, 5, 7, 8, 2, 7, 0, 2, 1, 1, 8, 1, 5, - 8, 3, 4, 0, 4, 5, 4, 1, 0, 1, 5, 6, 2, 5, 2, 7, 7, 5, 5, 5, 7, 5, 6, 1, 5, - 6, 2, 8, 9, 1, 3, 5, 1, 0, 5, 9, 0, 7, 9, 1, 7, 0, 2, 2, 7, 0, 5, 0, 7, 8, - 1, 2, 5, 1, 3, 8, 7, 7, 7, 8, 7, 8, 0, 7, 8, 1, 4, 4, 5, 6, 7, 5, 5, 2, 9, - 5, 3, 9, 5, 8, 5, 1, 1, 3, 5, 2, 5, 3, 9, 0, 6, 2, 5, 6, 9, 3, 8, 8, 9, 3, - 9, 0, 3, 9, 0, 7, 2, 2, 8, 3, 7, 7, 6, 4, 7, 6, 9, 7, 9, 2, 5, 5, 6, 7, 6, - 2, 6, 9, 5, 3, 1, 2, 5, 3, 4, 6, 9, 4, 4, 6, 9, 5, 1, 9, 5, 3, 6, 1, 4, 1, - 8, 8, 8, 2, 3, 8, 4, 8, 9, 6, 2, 7, 8, 3, 8, 1, 3, 4, 7, 6, 5, 6, 2, 5, 1, - 7, 3, 4, 7, 2, 3, 4, 7, 5, 9, 7, 6, 8, 0, 7, 0, 9, 4, 4, 1, 1, 9, 2, 4, 4, - 8, 1, 3, 9, 1, 9, 0, 6, 7, 3, 8, 2, 8, 1, 2, 5, 8, 6, 7, 3, 6, 1, 7, 3, 7, - 9, 8, 8, 4, 0, 3, 5, 4, 7, 2, 0, 5, 9, 6, 2, 2, 4, 0, 6, 9, 5, 9, 5, 3, 3, - 6, 9, 1, 4, 0, 6, 2, 5, -}; +static inline uint32_t // +wuffs_private_impl__range_ii_u32__get_min_incl( + const wuffs_base__range_ii_u32* r) { + return r->min_incl; +} + +static inline uint32_t // +wuffs_private_impl__range_ii_u32__get_max_incl( + const wuffs_base__range_ii_u32* r) { + return r->max_incl; +} + +static inline uint32_t // +wuffs_private_impl__range_ie_u32__get_min_incl( + const wuffs_base__range_ie_u32* r) { + return r->min_incl; +} + +static inline uint32_t // +wuffs_private_impl__range_ie_u32__get_max_excl( + const wuffs_base__range_ie_u32* r) { + return r->max_excl; +} + +static inline uint64_t // +wuffs_private_impl__range_ii_u64__get_min_incl( + const wuffs_base__range_ii_u64* r) { + return r->min_incl; +} + +static inline uint64_t // +wuffs_private_impl__range_ii_u64__get_max_incl( + const wuffs_base__range_ii_u64* r) { + return r->max_incl; +} + +static inline uint64_t // +wuffs_private_impl__range_ie_u64__get_min_incl( + const wuffs_base__range_ie_u64* r) { + return r->min_incl; +} + +static inline uint64_t // +wuffs_private_impl__range_ie_u64__get_max_excl( + const wuffs_base__range_ie_u64* r) { + return r->max_excl; +} + +// ---------------- Ranges and Rects (Utility) + +#define wuffs_base__utility__empty_range_ii_u32 wuffs_base__empty_range_ii_u32 +#define wuffs_base__utility__empty_range_ie_u32 wuffs_base__empty_range_ie_u32 +#define wuffs_base__utility__empty_range_ii_u64 wuffs_base__empty_range_ii_u64 +#define wuffs_base__utility__empty_range_ie_u64 wuffs_base__empty_range_ie_u64 +#define wuffs_base__utility__empty_rect_ii_u32 wuffs_base__empty_rect_ii_u32 +#define wuffs_base__utility__empty_rect_ie_u32 wuffs_base__empty_rect_ie_u32 +#define wuffs_base__utility__make_range_ii_u32 wuffs_base__make_range_ii_u32 +#define wuffs_base__utility__make_range_ie_u32 wuffs_base__make_range_ie_u32 +#define wuffs_base__utility__make_range_ii_u64 wuffs_base__make_range_ii_u64 +#define wuffs_base__utility__make_range_ie_u64 wuffs_base__make_range_ie_u64 +#define wuffs_base__utility__make_rect_ii_u32 wuffs_base__make_rect_ii_u32 +#define wuffs_base__utility__make_rect_ie_u32 wuffs_base__make_rect_ie_u32 + +// ---------------- I/O + +static inline uint64_t // +wuffs_private_impl__io__count_since(uint64_t mark, uint64_t index) { + if (index >= mark) { + return index - mark; + } + return 0; +} + +// TODO: drop the "const" in "const uint8_t* ptr". Some though required about +// the base.io_reader.since method returning a mutable "slice base.u8". +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wcast-qual" +#endif +static inline wuffs_base__slice_u8 // +wuffs_private_impl__io__since(uint64_t mark, + uint64_t index, + const uint8_t* ptr) { + if (index >= mark) { + return wuffs_base__make_slice_u8(((uint8_t*)ptr) + mark, + ((size_t)(index - mark))); + } + return wuffs_base__empty_slice_u8(); +} +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif // -------- -// wuffs_private_impl__powers_of_10 contains truncated approximations to the -// powers of 10, ranging from 1e-307 to 1e+288 inclusive, as 596 pairs of -// uint64_t values (a 128-bit mantissa). +static inline void // +wuffs_private_impl__io_reader__limit(const uint8_t** ptr_io2_r, + const uint8_t* iop_r, + uint64_t limit) { + if (((uint64_t)(*ptr_io2_r - iop_r)) > limit) { + *ptr_io2_r = iop_r + limit; + } +} + +static inline uint32_t // +wuffs_private_impl__io_reader__limited_copy_u32_to_slice( + const uint8_t** ptr_iop_r, + const uint8_t* io2_r, + uint32_t length, + wuffs_base__slice_u8 dst) { + const uint8_t* iop_r = *ptr_iop_r; + size_t n = dst.len; + if (n > length) { + n = length; + } + if (n > ((size_t)(io2_r - iop_r))) { + n = (size_t)(io2_r - iop_r); + } + if (n > 0) { + memmove(dst.ptr, iop_r, n); + *ptr_iop_r += n; + } + return (uint32_t)(n); +} + +// wuffs_private_impl__io_reader__match7 returns whether the io_reader's +// upcoming bytes start with the given prefix (up to 7 bytes long). It is +// peek-like, not read-like, in that there are no side-effects. // -// There's also an implicit third column (implied by a linear formula involving -// the base-10 exponent) that is the base-2 exponent, biased by a magic -// constant. That constant (1214 or 0x04BE) equals 1023 + 191. 1023 is the bias -// for IEEE 754 double-precision floating point. 191 is ((3 * 64) - 1) and -// wuffs_private_impl__parse_number_f64_eisel_lemire works with -// multiples-of-64-bit mantissas. +// The low 3 bits of a hold the prefix length, n. // -// For example, the third row holds the approximation to 1e-305: -// 0xE0B62E29_29ABA83C_331ACDAB_FE94DE87 * (2 ** (0x0049 - 0x04BE)) +// The high 56 bits of a hold the prefix itself, in little-endian order. The +// first prefix byte is in bits 8..=15, the second prefix byte is in bits +// 16..=23, etc. The high (8 * (7 - n)) bits are ignored. // -// Similarly, 1e+4 is approximated by: -// 0x9C400000_00000000_00000000_00000000 * (2 ** (0x044C - 0x04BE)) +// There are three possible return values: +// - 0 means success. +// - 1 means inconclusive, equivalent to "$short read". +// - 2 means failure. +static inline uint32_t // +wuffs_private_impl__io_reader__match7(const uint8_t* iop_r, + const uint8_t* io2_r, + wuffs_base__io_buffer* r, + uint64_t a) { + uint32_t n = a & 7; + a >>= 8; + if ((io2_r - iop_r) >= 8) { + uint64_t x = wuffs_base__peek_u64le__no_bounds_check(iop_r); + uint32_t shift = 8 * (8 - n); + return ((a << shift) == (x << shift)) ? 0 : 2; + } + for (; n > 0; n--) { + if (iop_r >= io2_r) { + return (r && r->meta.closed) ? 2 : 1; + } else if (*iop_r != ((uint8_t)(a))) { + return 2; + } + iop_r++; + a >>= 8; + } + return 0; +} + +static inline wuffs_base__io_buffer* // +wuffs_private_impl__io_reader__set(wuffs_base__io_buffer* b, + const uint8_t** ptr_iop_r, + const uint8_t** ptr_io0_r, + const uint8_t** ptr_io1_r, + const uint8_t** ptr_io2_r, + wuffs_base__slice_u8 data, + uint64_t history_position) { + b->data = data; + b->meta.wi = data.len; + b->meta.ri = 0; + b->meta.pos = history_position; + b->meta.closed = false; + + *ptr_iop_r = data.ptr; + *ptr_io0_r = data.ptr; + *ptr_io1_r = data.ptr; + *ptr_io2_r = data.ptr + data.len; + + return b; +} + +// -------- + +static inline uint64_t // +wuffs_private_impl__io_writer__copy_from_slice(uint8_t** ptr_iop_w, + uint8_t* io2_w, + wuffs_base__slice_u8 src) { + uint8_t* iop_w = *ptr_iop_w; + size_t n = src.len; + if (n > ((size_t)(io2_w - iop_w))) { + n = (size_t)(io2_w - iop_w); + } + if (n > 0) { + memmove(iop_w, src.ptr, n); + *ptr_iop_w += n; + } + return (uint64_t)(n); +} + +static inline void // +wuffs_private_impl__io_writer__limit(uint8_t** ptr_io2_w, + uint8_t* iop_w, + uint64_t limit) { + if (((uint64_t)(*ptr_io2_w - iop_w)) > limit) { + *ptr_io2_w = iop_w + limit; + } +} + +static inline uint32_t // +wuffs_private_impl__io_writer__limited_copy_u32_from_history( + uint8_t** ptr_iop_w, + uint8_t* io0_w, + uint8_t* io2_w, + uint32_t length, + uint32_t distance) { + if (!distance) { + return 0; + } + uint8_t* p = *ptr_iop_w; + if ((size_t)(p - io0_w) < (size_t)(distance)) { + return 0; + } + uint8_t* q = p - distance; + size_t n = (size_t)(io2_w - p); + if ((size_t)(length) > n) { + length = (uint32_t)(n); + } else { + n = (size_t)(length); + } + // TODO: unrolling by 3 seems best for the std/deflate benchmarks, but that + // is mostly because 3 is the minimum length for the deflate format. This + // function implementation shouldn't overfit to that one format. Perhaps the + // limited_copy_u32_from_history Wuffs method should also take an unroll hint + // argument, and the cgen can look if that argument is the constant + // expression '3'. + // + // See also wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast + // below. + for (; n >= 3; n -= 3) { + *p++ = *q++; + *p++ = *q++; + *p++ = *q++; + } + for (; n; n--) { + *p++ = *q++; + } + *ptr_iop_w = p; + return length; +} + +// wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast is like +// the wuffs_private_impl__io_writer__limited_copy_u32_from_history function +// above, but has stronger pre-conditions. // -// Similarly, 1e+68 is approximated by: -// 0xED63A231_D4C4FB27_4CA7AAA8_63EE4BDD * (2 ** (0x0520 - 0x04BE)) +// The caller needs to prove that: +// - length >= 1 +// - length <= (io2_w - *ptr_iop_w) +// - distance >= 1 +// - distance <= (*ptr_iop_w - io0_w) +static inline uint32_t // +wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast( + uint8_t** ptr_iop_w, + uint8_t* io0_w, + uint8_t* io2_w, + uint32_t length, + uint32_t distance) { + uint8_t* p = *ptr_iop_w; + uint8_t* q = p - distance; + uint32_t n = length; + for (; n >= 3; n -= 3) { + *p++ = *q++; + *p++ = *q++; + *p++ = *q++; + } + for (; n; n--) { + *p++ = *q++; + } + *ptr_iop_w = p; + return length; +} + +// wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast_return_cusp +// is like the +// wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast function, +// but also returns the cusp: a byte pair (as a u16le) being the last byte of +// and next byte after the copied history. // -// This table was generated by by script/print-mpb-powers-of-10.go -static const uint64_t wuffs_private_impl__powers_of_10[596][2] = { - {0xA5D3B6D479F8E056, 0x8FD0C16206306BAB}, // 1e-307 - {0x8F48A4899877186C, 0xB3C4F1BA87BC8696}, // 1e-306 - {0x331ACDABFE94DE87, 0xE0B62E2929ABA83C}, // 1e-305 - {0x9FF0C08B7F1D0B14, 0x8C71DCD9BA0B4925}, // 1e-304 - {0x07ECF0AE5EE44DD9, 0xAF8E5410288E1B6F}, // 1e-303 - {0xC9E82CD9F69D6150, 0xDB71E91432B1A24A}, // 1e-302 - {0xBE311C083A225CD2, 0x892731AC9FAF056E}, // 1e-301 - {0x6DBD630A48AAF406, 0xAB70FE17C79AC6CA}, // 1e-300 - {0x092CBBCCDAD5B108, 0xD64D3D9DB981787D}, // 1e-299 - {0x25BBF56008C58EA5, 0x85F0468293F0EB4E}, // 1e-298 - {0xAF2AF2B80AF6F24E, 0xA76C582338ED2621}, // 1e-297 - {0x1AF5AF660DB4AEE1, 0xD1476E2C07286FAA}, // 1e-296 - {0x50D98D9FC890ED4D, 0x82CCA4DB847945CA}, // 1e-295 - {0xE50FF107BAB528A0, 0xA37FCE126597973C}, // 1e-294 - {0x1E53ED49A96272C8, 0xCC5FC196FEFD7D0C}, // 1e-293 - {0x25E8E89C13BB0F7A, 0xFF77B1FCBEBCDC4F}, // 1e-292 - {0x77B191618C54E9AC, 0x9FAACF3DF73609B1}, // 1e-291 - {0xD59DF5B9EF6A2417, 0xC795830D75038C1D}, // 1e-290 - {0x4B0573286B44AD1D, 0xF97AE3D0D2446F25}, // 1e-289 - {0x4EE367F9430AEC32, 0x9BECCE62836AC577}, // 1e-288 - {0x229C41F793CDA73F, 0xC2E801FB244576D5}, // 1e-287 - {0x6B43527578C1110F, 0xF3A20279ED56D48A}, // 1e-286 - {0x830A13896B78AAA9, 0x9845418C345644D6}, // 1e-285 - {0x23CC986BC656D553, 0xBE5691EF416BD60C}, // 1e-284 - {0x2CBFBE86B7EC8AA8, 0xEDEC366B11C6CB8F}, // 1e-283 - {0x7BF7D71432F3D6A9, 0x94B3A202EB1C3F39}, // 1e-282 - {0xDAF5CCD93FB0CC53, 0xB9E08A83A5E34F07}, // 1e-281 - {0xD1B3400F8F9CFF68, 0xE858AD248F5C22C9}, // 1e-280 - {0x23100809B9C21FA1, 0x91376C36D99995BE}, // 1e-279 - {0xABD40A0C2832A78A, 0xB58547448FFFFB2D}, // 1e-278 - {0x16C90C8F323F516C, 0xE2E69915B3FFF9F9}, // 1e-277 - {0xAE3DA7D97F6792E3, 0x8DD01FAD907FFC3B}, // 1e-276 - {0x99CD11CFDF41779C, 0xB1442798F49FFB4A}, // 1e-275 - {0x40405643D711D583, 0xDD95317F31C7FA1D}, // 1e-274 - {0x482835EA666B2572, 0x8A7D3EEF7F1CFC52}, // 1e-273 - {0xDA3243650005EECF, 0xAD1C8EAB5EE43B66}, // 1e-272 - {0x90BED43E40076A82, 0xD863B256369D4A40}, // 1e-271 - {0x5A7744A6E804A291, 0x873E4F75E2224E68}, // 1e-270 - {0x711515D0A205CB36, 0xA90DE3535AAAE202}, // 1e-269 - {0x0D5A5B44CA873E03, 0xD3515C2831559A83}, // 1e-268 - {0xE858790AFE9486C2, 0x8412D9991ED58091}, // 1e-267 - {0x626E974DBE39A872, 0xA5178FFF668AE0B6}, // 1e-266 - {0xFB0A3D212DC8128F, 0xCE5D73FF402D98E3}, // 1e-265 - {0x7CE66634BC9D0B99, 0x80FA687F881C7F8E}, // 1e-264 - {0x1C1FFFC1EBC44E80, 0xA139029F6A239F72}, // 1e-263 - {0xA327FFB266B56220, 0xC987434744AC874E}, // 1e-262 - {0x4BF1FF9F0062BAA8, 0xFBE9141915D7A922}, // 1e-261 - {0x6F773FC3603DB4A9, 0x9D71AC8FADA6C9B5}, // 1e-260 - {0xCB550FB4384D21D3, 0xC4CE17B399107C22}, // 1e-259 - {0x7E2A53A146606A48, 0xF6019DA07F549B2B}, // 1e-258 - {0x2EDA7444CBFC426D, 0x99C102844F94E0FB}, // 1e-257 - {0xFA911155FEFB5308, 0xC0314325637A1939}, // 1e-256 - {0x793555AB7EBA27CA, 0xF03D93EEBC589F88}, // 1e-255 - {0x4BC1558B2F3458DE, 0x96267C7535B763B5}, // 1e-254 - {0x9EB1AAEDFB016F16, 0xBBB01B9283253CA2}, // 1e-253 - {0x465E15A979C1CADC, 0xEA9C227723EE8BCB}, // 1e-252 - {0x0BFACD89EC191EC9, 0x92A1958A7675175F}, // 1e-251 - {0xCEF980EC671F667B, 0xB749FAED14125D36}, // 1e-250 - {0x82B7E12780E7401A, 0xE51C79A85916F484}, // 1e-249 - {0xD1B2ECB8B0908810, 0x8F31CC0937AE58D2}, // 1e-248 - {0x861FA7E6DCB4AA15, 0xB2FE3F0B8599EF07}, // 1e-247 - {0x67A791E093E1D49A, 0xDFBDCECE67006AC9}, // 1e-246 - {0xE0C8BB2C5C6D24E0, 0x8BD6A141006042BD}, // 1e-245 - {0x58FAE9F773886E18, 0xAECC49914078536D}, // 1e-244 - {0xAF39A475506A899E, 0xDA7F5BF590966848}, // 1e-243 - {0x6D8406C952429603, 0x888F99797A5E012D}, // 1e-242 - {0xC8E5087BA6D33B83, 0xAAB37FD7D8F58178}, // 1e-241 - {0xFB1E4A9A90880A64, 0xD5605FCDCF32E1D6}, // 1e-240 - {0x5CF2EEA09A55067F, 0x855C3BE0A17FCD26}, // 1e-239 - {0xF42FAA48C0EA481E, 0xA6B34AD8C9DFC06F}, // 1e-238 - {0xF13B94DAF124DA26, 0xD0601D8EFC57B08B}, // 1e-237 - {0x76C53D08D6B70858, 0x823C12795DB6CE57}, // 1e-236 - {0x54768C4B0C64CA6E, 0xA2CB1717B52481ED}, // 1e-235 - {0xA9942F5DCF7DFD09, 0xCB7DDCDDA26DA268}, // 1e-234 - {0xD3F93B35435D7C4C, 0xFE5D54150B090B02}, // 1e-233 - {0xC47BC5014A1A6DAF, 0x9EFA548D26E5A6E1}, // 1e-232 - {0x359AB6419CA1091B, 0xC6B8E9B0709F109A}, // 1e-231 - {0xC30163D203C94B62, 0xF867241C8CC6D4C0}, // 1e-230 - {0x79E0DE63425DCF1D, 0x9B407691D7FC44F8}, // 1e-229 - {0x985915FC12F542E4, 0xC21094364DFB5636}, // 1e-228 - {0x3E6F5B7B17B2939D, 0xF294B943E17A2BC4}, // 1e-227 - {0xA705992CEECF9C42, 0x979CF3CA6CEC5B5A}, // 1e-226 - {0x50C6FF782A838353, 0xBD8430BD08277231}, // 1e-225 - {0xA4F8BF5635246428, 0xECE53CEC4A314EBD}, // 1e-224 - {0x871B7795E136BE99, 0x940F4613AE5ED136}, // 1e-223 - {0x28E2557B59846E3F, 0xB913179899F68584}, // 1e-222 - {0x331AEADA2FE589CF, 0xE757DD7EC07426E5}, // 1e-221 - {0x3FF0D2C85DEF7621, 0x9096EA6F3848984F}, // 1e-220 - {0x0FED077A756B53A9, 0xB4BCA50B065ABE63}, // 1e-219 - {0xD3E8495912C62894, 0xE1EBCE4DC7F16DFB}, // 1e-218 - {0x64712DD7ABBBD95C, 0x8D3360F09CF6E4BD}, // 1e-217 - {0xBD8D794D96AACFB3, 0xB080392CC4349DEC}, // 1e-216 - {0xECF0D7A0FC5583A0, 0xDCA04777F541C567}, // 1e-215 - {0xF41686C49DB57244, 0x89E42CAAF9491B60}, // 1e-214 - {0x311C2875C522CED5, 0xAC5D37D5B79B6239}, // 1e-213 - {0x7D633293366B828B, 0xD77485CB25823AC7}, // 1e-212 - {0xAE5DFF9C02033197, 0x86A8D39EF77164BC}, // 1e-211 - {0xD9F57F830283FDFC, 0xA8530886B54DBDEB}, // 1e-210 - {0xD072DF63C324FD7B, 0xD267CAA862A12D66}, // 1e-209 - {0x4247CB9E59F71E6D, 0x8380DEA93DA4BC60}, // 1e-208 - {0x52D9BE85F074E608, 0xA46116538D0DEB78}, // 1e-207 - {0x67902E276C921F8B, 0xCD795BE870516656}, // 1e-206 - {0x00BA1CD8A3DB53B6, 0x806BD9714632DFF6}, // 1e-205 - {0x80E8A40ECCD228A4, 0xA086CFCD97BF97F3}, // 1e-204 - {0x6122CD128006B2CD, 0xC8A883C0FDAF7DF0}, // 1e-203 - {0x796B805720085F81, 0xFAD2A4B13D1B5D6C}, // 1e-202 - {0xCBE3303674053BB0, 0x9CC3A6EEC6311A63}, // 1e-201 - {0xBEDBFC4411068A9C, 0xC3F490AA77BD60FC}, // 1e-200 - {0xEE92FB5515482D44, 0xF4F1B4D515ACB93B}, // 1e-199 - {0x751BDD152D4D1C4A, 0x991711052D8BF3C5}, // 1e-198 - {0xD262D45A78A0635D, 0xBF5CD54678EEF0B6}, // 1e-197 - {0x86FB897116C87C34, 0xEF340A98172AACE4}, // 1e-196 - {0xD45D35E6AE3D4DA0, 0x9580869F0E7AAC0E}, // 1e-195 - {0x8974836059CCA109, 0xBAE0A846D2195712}, // 1e-194 - {0x2BD1A438703FC94B, 0xE998D258869FACD7}, // 1e-193 - {0x7B6306A34627DDCF, 0x91FF83775423CC06}, // 1e-192 - {0x1A3BC84C17B1D542, 0xB67F6455292CBF08}, // 1e-191 - {0x20CABA5F1D9E4A93, 0xE41F3D6A7377EECA}, // 1e-190 - {0x547EB47B7282EE9C, 0x8E938662882AF53E}, // 1e-189 - {0xE99E619A4F23AA43, 0xB23867FB2A35B28D}, // 1e-188 - {0x6405FA00E2EC94D4, 0xDEC681F9F4C31F31}, // 1e-187 - {0xDE83BC408DD3DD04, 0x8B3C113C38F9F37E}, // 1e-186 - {0x9624AB50B148D445, 0xAE0B158B4738705E}, // 1e-185 - {0x3BADD624DD9B0957, 0xD98DDAEE19068C76}, // 1e-184 - {0xE54CA5D70A80E5D6, 0x87F8A8D4CFA417C9}, // 1e-183 - {0x5E9FCF4CCD211F4C, 0xA9F6D30A038D1DBC}, // 1e-182 - {0x7647C3200069671F, 0xD47487CC8470652B}, // 1e-181 - {0x29ECD9F40041E073, 0x84C8D4DFD2C63F3B}, // 1e-180 - {0xF468107100525890, 0xA5FB0A17C777CF09}, // 1e-179 - {0x7182148D4066EEB4, 0xCF79CC9DB955C2CC}, // 1e-178 - {0xC6F14CD848405530, 0x81AC1FE293D599BF}, // 1e-177 - {0xB8ADA00E5A506A7C, 0xA21727DB38CB002F}, // 1e-176 - {0xA6D90811F0E4851C, 0xCA9CF1D206FDC03B}, // 1e-175 - {0x908F4A166D1DA663, 0xFD442E4688BD304A}, // 1e-174 - {0x9A598E4E043287FE, 0x9E4A9CEC15763E2E}, // 1e-173 - {0x40EFF1E1853F29FD, 0xC5DD44271AD3CDBA}, // 1e-172 - {0xD12BEE59E68EF47C, 0xF7549530E188C128}, // 1e-171 - {0x82BB74F8301958CE, 0x9A94DD3E8CF578B9}, // 1e-170 - {0xE36A52363C1FAF01, 0xC13A148E3032D6E7}, // 1e-169 - {0xDC44E6C3CB279AC1, 0xF18899B1BC3F8CA1}, // 1e-168 - {0x29AB103A5EF8C0B9, 0x96F5600F15A7B7E5}, // 1e-167 - {0x7415D448F6B6F0E7, 0xBCB2B812DB11A5DE}, // 1e-166 - {0x111B495B3464AD21, 0xEBDF661791D60F56}, // 1e-165 - {0xCAB10DD900BEEC34, 0x936B9FCEBB25C995}, // 1e-164 - {0x3D5D514F40EEA742, 0xB84687C269EF3BFB}, // 1e-163 - {0x0CB4A5A3112A5112, 0xE65829B3046B0AFA}, // 1e-162 - {0x47F0E785EABA72AB, 0x8FF71A0FE2C2E6DC}, // 1e-161 - {0x59ED216765690F56, 0xB3F4E093DB73A093}, // 1e-160 - {0x306869C13EC3532C, 0xE0F218B8D25088B8}, // 1e-159 - {0x1E414218C73A13FB, 0x8C974F7383725573}, // 1e-158 - {0xE5D1929EF90898FA, 0xAFBD2350644EEACF}, // 1e-157 - {0xDF45F746B74ABF39, 0xDBAC6C247D62A583}, // 1e-156 - {0x6B8BBA8C328EB783, 0x894BC396CE5DA772}, // 1e-155 - {0x066EA92F3F326564, 0xAB9EB47C81F5114F}, // 1e-154 - {0xC80A537B0EFEFEBD, 0xD686619BA27255A2}, // 1e-153 - {0xBD06742CE95F5F36, 0x8613FD0145877585}, // 1e-152 - {0x2C48113823B73704, 0xA798FC4196E952E7}, // 1e-151 - {0xF75A15862CA504C5, 0xD17F3B51FCA3A7A0}, // 1e-150 - {0x9A984D73DBE722FB, 0x82EF85133DE648C4}, // 1e-149 - {0xC13E60D0D2E0EBBA, 0xA3AB66580D5FDAF5}, // 1e-148 - {0x318DF905079926A8, 0xCC963FEE10B7D1B3}, // 1e-147 - {0xFDF17746497F7052, 0xFFBBCFE994E5C61F}, // 1e-146 - {0xFEB6EA8BEDEFA633, 0x9FD561F1FD0F9BD3}, // 1e-145 - {0xFE64A52EE96B8FC0, 0xC7CABA6E7C5382C8}, // 1e-144 - {0x3DFDCE7AA3C673B0, 0xF9BD690A1B68637B}, // 1e-143 - {0x06BEA10CA65C084E, 0x9C1661A651213E2D}, // 1e-142 - {0x486E494FCFF30A62, 0xC31BFA0FE5698DB8}, // 1e-141 - {0x5A89DBA3C3EFCCFA, 0xF3E2F893DEC3F126}, // 1e-140 - {0xF89629465A75E01C, 0x986DDB5C6B3A76B7}, // 1e-139 - {0xF6BBB397F1135823, 0xBE89523386091465}, // 1e-138 - {0x746AA07DED582E2C, 0xEE2BA6C0678B597F}, // 1e-137 - {0xA8C2A44EB4571CDC, 0x94DB483840B717EF}, // 1e-136 - {0x92F34D62616CE413, 0xBA121A4650E4DDEB}, // 1e-135 - {0x77B020BAF9C81D17, 0xE896A0D7E51E1566}, // 1e-134 - {0x0ACE1474DC1D122E, 0x915E2486EF32CD60}, // 1e-133 - {0x0D819992132456BA, 0xB5B5ADA8AAFF80B8}, // 1e-132 - {0x10E1FFF697ED6C69, 0xE3231912D5BF60E6}, // 1e-131 - {0xCA8D3FFA1EF463C1, 0x8DF5EFABC5979C8F}, // 1e-130 - {0xBD308FF8A6B17CB2, 0xB1736B96B6FD83B3}, // 1e-129 - {0xAC7CB3F6D05DDBDE, 0xDDD0467C64BCE4A0}, // 1e-128 - {0x6BCDF07A423AA96B, 0x8AA22C0DBEF60EE4}, // 1e-127 - {0x86C16C98D2C953C6, 0xAD4AB7112EB3929D}, // 1e-126 - {0xE871C7BF077BA8B7, 0xD89D64D57A607744}, // 1e-125 - {0x11471CD764AD4972, 0x87625F056C7C4A8B}, // 1e-124 - {0xD598E40D3DD89BCF, 0xA93AF6C6C79B5D2D}, // 1e-123 - {0x4AFF1D108D4EC2C3, 0xD389B47879823479}, // 1e-122 - {0xCEDF722A585139BA, 0x843610CB4BF160CB}, // 1e-121 - {0xC2974EB4EE658828, 0xA54394FE1EEDB8FE}, // 1e-120 - {0x733D226229FEEA32, 0xCE947A3DA6A9273E}, // 1e-119 - {0x0806357D5A3F525F, 0x811CCC668829B887}, // 1e-118 - {0xCA07C2DCB0CF26F7, 0xA163FF802A3426A8}, // 1e-117 - {0xFC89B393DD02F0B5, 0xC9BCFF6034C13052}, // 1e-116 - {0xBBAC2078D443ACE2, 0xFC2C3F3841F17C67}, // 1e-115 - {0xD54B944B84AA4C0D, 0x9D9BA7832936EDC0}, // 1e-114 - {0x0A9E795E65D4DF11, 0xC5029163F384A931}, // 1e-113 - {0x4D4617B5FF4A16D5, 0xF64335BCF065D37D}, // 1e-112 - {0x504BCED1BF8E4E45, 0x99EA0196163FA42E}, // 1e-111 - {0xE45EC2862F71E1D6, 0xC06481FB9BCF8D39}, // 1e-110 - {0x5D767327BB4E5A4C, 0xF07DA27A82C37088}, // 1e-109 - {0x3A6A07F8D510F86F, 0x964E858C91BA2655}, // 1e-108 - {0x890489F70A55368B, 0xBBE226EFB628AFEA}, // 1e-107 - {0x2B45AC74CCEA842E, 0xEADAB0ABA3B2DBE5}, // 1e-106 - {0x3B0B8BC90012929D, 0x92C8AE6B464FC96F}, // 1e-105 - {0x09CE6EBB40173744, 0xB77ADA0617E3BBCB}, // 1e-104 - {0xCC420A6A101D0515, 0xE55990879DDCAABD}, // 1e-103 - {0x9FA946824A12232D, 0x8F57FA54C2A9EAB6}, // 1e-102 - {0x47939822DC96ABF9, 0xB32DF8E9F3546564}, // 1e-101 - {0x59787E2B93BC56F7, 0xDFF9772470297EBD}, // 1e-100 - {0x57EB4EDB3C55B65A, 0x8BFBEA76C619EF36}, // 1e-99 - {0xEDE622920B6B23F1, 0xAEFAE51477A06B03}, // 1e-98 - {0xE95FAB368E45ECED, 0xDAB99E59958885C4}, // 1e-97 - {0x11DBCB0218EBB414, 0x88B402F7FD75539B}, // 1e-96 - {0xD652BDC29F26A119, 0xAAE103B5FCD2A881}, // 1e-95 - {0x4BE76D3346F0495F, 0xD59944A37C0752A2}, // 1e-94 - {0x6F70A4400C562DDB, 0x857FCAE62D8493A5}, // 1e-93 - {0xCB4CCD500F6BB952, 0xA6DFBD9FB8E5B88E}, // 1e-92 - {0x7E2000A41346A7A7, 0xD097AD07A71F26B2}, // 1e-91 - {0x8ED400668C0C28C8, 0x825ECC24C873782F}, // 1e-90 - {0x728900802F0F32FA, 0xA2F67F2DFA90563B}, // 1e-89 - {0x4F2B40A03AD2FFB9, 0xCBB41EF979346BCA}, // 1e-88 - {0xE2F610C84987BFA8, 0xFEA126B7D78186BC}, // 1e-87 - {0x0DD9CA7D2DF4D7C9, 0x9F24B832E6B0F436}, // 1e-86 - {0x91503D1C79720DBB, 0xC6EDE63FA05D3143}, // 1e-85 - {0x75A44C6397CE912A, 0xF8A95FCF88747D94}, // 1e-84 - {0xC986AFBE3EE11ABA, 0x9B69DBE1B548CE7C}, // 1e-83 - {0xFBE85BADCE996168, 0xC24452DA229B021B}, // 1e-82 - {0xFAE27299423FB9C3, 0xF2D56790AB41C2A2}, // 1e-81 - {0xDCCD879FC967D41A, 0x97C560BA6B0919A5}, // 1e-80 - {0x5400E987BBC1C920, 0xBDB6B8E905CB600F}, // 1e-79 - {0x290123E9AAB23B68, 0xED246723473E3813}, // 1e-78 - {0xF9A0B6720AAF6521, 0x9436C0760C86E30B}, // 1e-77 - {0xF808E40E8D5B3E69, 0xB94470938FA89BCE}, // 1e-76 - {0xB60B1D1230B20E04, 0xE7958CB87392C2C2}, // 1e-75 - {0xB1C6F22B5E6F48C2, 0x90BD77F3483BB9B9}, // 1e-74 - {0x1E38AEB6360B1AF3, 0xB4ECD5F01A4AA828}, // 1e-73 - {0x25C6DA63C38DE1B0, 0xE2280B6C20DD5232}, // 1e-72 - {0x579C487E5A38AD0E, 0x8D590723948A535F}, // 1e-71 - {0x2D835A9DF0C6D851, 0xB0AF48EC79ACE837}, // 1e-70 - {0xF8E431456CF88E65, 0xDCDB1B2798182244}, // 1e-69 - {0x1B8E9ECB641B58FF, 0x8A08F0F8BF0F156B}, // 1e-68 - {0xE272467E3D222F3F, 0xAC8B2D36EED2DAC5}, // 1e-67 - {0x5B0ED81DCC6ABB0F, 0xD7ADF884AA879177}, // 1e-66 - {0x98E947129FC2B4E9, 0x86CCBB52EA94BAEA}, // 1e-65 - {0x3F2398D747B36224, 0xA87FEA27A539E9A5}, // 1e-64 - {0x8EEC7F0D19A03AAD, 0xD29FE4B18E88640E}, // 1e-63 - {0x1953CF68300424AC, 0x83A3EEEEF9153E89}, // 1e-62 - {0x5FA8C3423C052DD7, 0xA48CEAAAB75A8E2B}, // 1e-61 - {0x3792F412CB06794D, 0xCDB02555653131B6}, // 1e-60 - {0xE2BBD88BBEE40BD0, 0x808E17555F3EBF11}, // 1e-59 - {0x5B6ACEAEAE9D0EC4, 0xA0B19D2AB70E6ED6}, // 1e-58 - {0xF245825A5A445275, 0xC8DE047564D20A8B}, // 1e-57 - {0xEED6E2F0F0D56712, 0xFB158592BE068D2E}, // 1e-56 - {0x55464DD69685606B, 0x9CED737BB6C4183D}, // 1e-55 - {0xAA97E14C3C26B886, 0xC428D05AA4751E4C}, // 1e-54 - {0xD53DD99F4B3066A8, 0xF53304714D9265DF}, // 1e-53 - {0xE546A8038EFE4029, 0x993FE2C6D07B7FAB}, // 1e-52 - {0xDE98520472BDD033, 0xBF8FDB78849A5F96}, // 1e-51 - {0x963E66858F6D4440, 0xEF73D256A5C0F77C}, // 1e-50 - {0xDDE7001379A44AA8, 0x95A8637627989AAD}, // 1e-49 - {0x5560C018580D5D52, 0xBB127C53B17EC159}, // 1e-48 - {0xAAB8F01E6E10B4A6, 0xE9D71B689DDE71AF}, // 1e-47 - {0xCAB3961304CA70E8, 0x9226712162AB070D}, // 1e-46 - {0x3D607B97C5FD0D22, 0xB6B00D69BB55C8D1}, // 1e-45 - {0x8CB89A7DB77C506A, 0xE45C10C42A2B3B05}, // 1e-44 - {0x77F3608E92ADB242, 0x8EB98A7A9A5B04E3}, // 1e-43 - {0x55F038B237591ED3, 0xB267ED1940F1C61C}, // 1e-42 - {0x6B6C46DEC52F6688, 0xDF01E85F912E37A3}, // 1e-41 - {0x2323AC4B3B3DA015, 0x8B61313BBABCE2C6}, // 1e-40 - {0xABEC975E0A0D081A, 0xAE397D8AA96C1B77}, // 1e-39 - {0x96E7BD358C904A21, 0xD9C7DCED53C72255}, // 1e-38 - {0x7E50D64177DA2E54, 0x881CEA14545C7575}, // 1e-37 - {0xDDE50BD1D5D0B9E9, 0xAA242499697392D2}, // 1e-36 - {0x955E4EC64B44E864, 0xD4AD2DBFC3D07787}, // 1e-35 - {0xBD5AF13BEF0B113E, 0x84EC3C97DA624AB4}, // 1e-34 - {0xECB1AD8AEACDD58E, 0xA6274BBDD0FADD61}, // 1e-33 - {0x67DE18EDA5814AF2, 0xCFB11EAD453994BA}, // 1e-32 - {0x80EACF948770CED7, 0x81CEB32C4B43FCF4}, // 1e-31 - {0xA1258379A94D028D, 0xA2425FF75E14FC31}, // 1e-30 - {0x096EE45813A04330, 0xCAD2F7F5359A3B3E}, // 1e-29 - {0x8BCA9D6E188853FC, 0xFD87B5F28300CA0D}, // 1e-28 - {0x775EA264CF55347D, 0x9E74D1B791E07E48}, // 1e-27 - {0x95364AFE032A819D, 0xC612062576589DDA}, // 1e-26 - {0x3A83DDBD83F52204, 0xF79687AED3EEC551}, // 1e-25 - {0xC4926A9672793542, 0x9ABE14CD44753B52}, // 1e-24 - {0x75B7053C0F178293, 0xC16D9A0095928A27}, // 1e-23 - {0x5324C68B12DD6338, 0xF1C90080BAF72CB1}, // 1e-22 - {0xD3F6FC16EBCA5E03, 0x971DA05074DA7BEE}, // 1e-21 - {0x88F4BB1CA6BCF584, 0xBCE5086492111AEA}, // 1e-20 - {0x2B31E9E3D06C32E5, 0xEC1E4A7DB69561A5}, // 1e-19 - {0x3AFF322E62439FCF, 0x9392EE8E921D5D07}, // 1e-18 - {0x09BEFEB9FAD487C2, 0xB877AA3236A4B449}, // 1e-17 - {0x4C2EBE687989A9B3, 0xE69594BEC44DE15B}, // 1e-16 - {0x0F9D37014BF60A10, 0x901D7CF73AB0ACD9}, // 1e-15 - {0x538484C19EF38C94, 0xB424DC35095CD80F}, // 1e-14 - {0x2865A5F206B06FB9, 0xE12E13424BB40E13}, // 1e-13 - {0xF93F87B7442E45D3, 0x8CBCCC096F5088CB}, // 1e-12 - {0xF78F69A51539D748, 0xAFEBFF0BCB24AAFE}, // 1e-11 - {0xB573440E5A884D1B, 0xDBE6FECEBDEDD5BE}, // 1e-10 - {0x31680A88F8953030, 0x89705F4136B4A597}, // 1e-9 - {0xFDC20D2B36BA7C3D, 0xABCC77118461CEFC}, // 1e-8 - {0x3D32907604691B4C, 0xD6BF94D5E57A42BC}, // 1e-7 - {0xA63F9A49C2C1B10F, 0x8637BD05AF6C69B5}, // 1e-6 - {0x0FCF80DC33721D53, 0xA7C5AC471B478423}, // 1e-5 - {0xD3C36113404EA4A8, 0xD1B71758E219652B}, // 1e-4 - {0x645A1CAC083126E9, 0x83126E978D4FDF3B}, // 1e-3 - {0x3D70A3D70A3D70A3, 0xA3D70A3D70A3D70A}, // 1e-2 - {0xCCCCCCCCCCCCCCCC, 0xCCCCCCCCCCCCCCCC}, // 1e-1 - {0x0000000000000000, 0x8000000000000000}, // 1e0 - {0x0000000000000000, 0xA000000000000000}, // 1e1 - {0x0000000000000000, 0xC800000000000000}, // 1e2 - {0x0000000000000000, 0xFA00000000000000}, // 1e3 - {0x0000000000000000, 0x9C40000000000000}, // 1e4 - {0x0000000000000000, 0xC350000000000000}, // 1e5 - {0x0000000000000000, 0xF424000000000000}, // 1e6 - {0x0000000000000000, 0x9896800000000000}, // 1e7 - {0x0000000000000000, 0xBEBC200000000000}, // 1e8 - {0x0000000000000000, 0xEE6B280000000000}, // 1e9 - {0x0000000000000000, 0x9502F90000000000}, // 1e10 - {0x0000000000000000, 0xBA43B74000000000}, // 1e11 - {0x0000000000000000, 0xE8D4A51000000000}, // 1e12 - {0x0000000000000000, 0x9184E72A00000000}, // 1e13 - {0x0000000000000000, 0xB5E620F480000000}, // 1e14 - {0x0000000000000000, 0xE35FA931A0000000}, // 1e15 - {0x0000000000000000, 0x8E1BC9BF04000000}, // 1e16 - {0x0000000000000000, 0xB1A2BC2EC5000000}, // 1e17 - {0x0000000000000000, 0xDE0B6B3A76400000}, // 1e18 - {0x0000000000000000, 0x8AC7230489E80000}, // 1e19 - {0x0000000000000000, 0xAD78EBC5AC620000}, // 1e20 - {0x0000000000000000, 0xD8D726B7177A8000}, // 1e21 - {0x0000000000000000, 0x878678326EAC9000}, // 1e22 - {0x0000000000000000, 0xA968163F0A57B400}, // 1e23 - {0x0000000000000000, 0xD3C21BCECCEDA100}, // 1e24 - {0x0000000000000000, 0x84595161401484A0}, // 1e25 - {0x0000000000000000, 0xA56FA5B99019A5C8}, // 1e26 - {0x0000000000000000, 0xCECB8F27F4200F3A}, // 1e27 - {0x4000000000000000, 0x813F3978F8940984}, // 1e28 - {0x5000000000000000, 0xA18F07D736B90BE5}, // 1e29 - {0xA400000000000000, 0xC9F2C9CD04674EDE}, // 1e30 - {0x4D00000000000000, 0xFC6F7C4045812296}, // 1e31 - {0xF020000000000000, 0x9DC5ADA82B70B59D}, // 1e32 - {0x6C28000000000000, 0xC5371912364CE305}, // 1e33 - {0xC732000000000000, 0xF684DF56C3E01BC6}, // 1e34 - {0x3C7F400000000000, 0x9A130B963A6C115C}, // 1e35 - {0x4B9F100000000000, 0xC097CE7BC90715B3}, // 1e36 - {0x1E86D40000000000, 0xF0BDC21ABB48DB20}, // 1e37 - {0x1314448000000000, 0x96769950B50D88F4}, // 1e38 - {0x17D955A000000000, 0xBC143FA4E250EB31}, // 1e39 - {0x5DCFAB0800000000, 0xEB194F8E1AE525FD}, // 1e40 - {0x5AA1CAE500000000, 0x92EFD1B8D0CF37BE}, // 1e41 - {0xF14A3D9E40000000, 0xB7ABC627050305AD}, // 1e42 - {0x6D9CCD05D0000000, 0xE596B7B0C643C719}, // 1e43 - {0xE4820023A2000000, 0x8F7E32CE7BEA5C6F}, // 1e44 - {0xDDA2802C8A800000, 0xB35DBF821AE4F38B}, // 1e45 - {0xD50B2037AD200000, 0xE0352F62A19E306E}, // 1e46 - {0x4526F422CC340000, 0x8C213D9DA502DE45}, // 1e47 - {0x9670B12B7F410000, 0xAF298D050E4395D6}, // 1e48 - {0x3C0CDD765F114000, 0xDAF3F04651D47B4C}, // 1e49 - {0xA5880A69FB6AC800, 0x88D8762BF324CD0F}, // 1e50 - {0x8EEA0D047A457A00, 0xAB0E93B6EFEE0053}, // 1e51 - {0x72A4904598D6D880, 0xD5D238A4ABE98068}, // 1e52 - {0x47A6DA2B7F864750, 0x85A36366EB71F041}, // 1e53 - {0x999090B65F67D924, 0xA70C3C40A64E6C51}, // 1e54 - {0xFFF4B4E3F741CF6D, 0xD0CF4B50CFE20765}, // 1e55 - {0xBFF8F10E7A8921A4, 0x82818F1281ED449F}, // 1e56 - {0xAFF72D52192B6A0D, 0xA321F2D7226895C7}, // 1e57 - {0x9BF4F8A69F764490, 0xCBEA6F8CEB02BB39}, // 1e58 - {0x02F236D04753D5B4, 0xFEE50B7025C36A08}, // 1e59 - {0x01D762422C946590, 0x9F4F2726179A2245}, // 1e60 - {0x424D3AD2B7B97EF5, 0xC722F0EF9D80AAD6}, // 1e61 - {0xD2E0898765A7DEB2, 0xF8EBAD2B84E0D58B}, // 1e62 - {0x63CC55F49F88EB2F, 0x9B934C3B330C8577}, // 1e63 - {0x3CBF6B71C76B25FB, 0xC2781F49FFCFA6D5}, // 1e64 - {0x8BEF464E3945EF7A, 0xF316271C7FC3908A}, // 1e65 - {0x97758BF0E3CBB5AC, 0x97EDD871CFDA3A56}, // 1e66 - {0x3D52EEED1CBEA317, 0xBDE94E8E43D0C8EC}, // 1e67 - {0x4CA7AAA863EE4BDD, 0xED63A231D4C4FB27}, // 1e68 - {0x8FE8CAA93E74EF6A, 0x945E455F24FB1CF8}, // 1e69 - {0xB3E2FD538E122B44, 0xB975D6B6EE39E436}, // 1e70 - {0x60DBBCA87196B616, 0xE7D34C64A9C85D44}, // 1e71 - {0xBC8955E946FE31CD, 0x90E40FBEEA1D3A4A}, // 1e72 - {0x6BABAB6398BDBE41, 0xB51D13AEA4A488DD}, // 1e73 - {0xC696963C7EED2DD1, 0xE264589A4DCDAB14}, // 1e74 - {0xFC1E1DE5CF543CA2, 0x8D7EB76070A08AEC}, // 1e75 - {0x3B25A55F43294BCB, 0xB0DE65388CC8ADA8}, // 1e76 - {0x49EF0EB713F39EBE, 0xDD15FE86AFFAD912}, // 1e77 - {0x6E3569326C784337, 0x8A2DBF142DFCC7AB}, // 1e78 - {0x49C2C37F07965404, 0xACB92ED9397BF996}, // 1e79 - {0xDC33745EC97BE906, 0xD7E77A8F87DAF7FB}, // 1e80 - {0x69A028BB3DED71A3, 0x86F0AC99B4E8DAFD}, // 1e81 - {0xC40832EA0D68CE0C, 0xA8ACD7C0222311BC}, // 1e82 - {0xF50A3FA490C30190, 0xD2D80DB02AABD62B}, // 1e83 - {0x792667C6DA79E0FA, 0x83C7088E1AAB65DB}, // 1e84 - {0x577001B891185938, 0xA4B8CAB1A1563F52}, // 1e85 - {0xED4C0226B55E6F86, 0xCDE6FD5E09ABCF26}, // 1e86 - {0x544F8158315B05B4, 0x80B05E5AC60B6178}, // 1e87 - {0x696361AE3DB1C721, 0xA0DC75F1778E39D6}, // 1e88 - {0x03BC3A19CD1E38E9, 0xC913936DD571C84C}, // 1e89 - {0x04AB48A04065C723, 0xFB5878494ACE3A5F}, // 1e90 - {0x62EB0D64283F9C76, 0x9D174B2DCEC0E47B}, // 1e91 - {0x3BA5D0BD324F8394, 0xC45D1DF942711D9A}, // 1e92 - {0xCA8F44EC7EE36479, 0xF5746577930D6500}, // 1e93 - {0x7E998B13CF4E1ECB, 0x9968BF6ABBE85F20}, // 1e94 - {0x9E3FEDD8C321A67E, 0xBFC2EF456AE276E8}, // 1e95 - {0xC5CFE94EF3EA101E, 0xEFB3AB16C59B14A2}, // 1e96 - {0xBBA1F1D158724A12, 0x95D04AEE3B80ECE5}, // 1e97 - {0x2A8A6E45AE8EDC97, 0xBB445DA9CA61281F}, // 1e98 - {0xF52D09D71A3293BD, 0xEA1575143CF97226}, // 1e99 - {0x593C2626705F9C56, 0x924D692CA61BE758}, // 1e100 - {0x6F8B2FB00C77836C, 0xB6E0C377CFA2E12E}, // 1e101 - {0x0B6DFB9C0F956447, 0xE498F455C38B997A}, // 1e102 - {0x4724BD4189BD5EAC, 0x8EDF98B59A373FEC}, // 1e103 - {0x58EDEC91EC2CB657, 0xB2977EE300C50FE7}, // 1e104 - {0x2F2967B66737E3ED, 0xDF3D5E9BC0F653E1}, // 1e105 - {0xBD79E0D20082EE74, 0x8B865B215899F46C}, // 1e106 - {0xECD8590680A3AA11, 0xAE67F1E9AEC07187}, // 1e107 - {0xE80E6F4820CC9495, 0xDA01EE641A708DE9}, // 1e108 - {0x3109058D147FDCDD, 0x884134FE908658B2}, // 1e109 - {0xBD4B46F0599FD415, 0xAA51823E34A7EEDE}, // 1e110 - {0x6C9E18AC7007C91A, 0xD4E5E2CDC1D1EA96}, // 1e111 - {0x03E2CF6BC604DDB0, 0x850FADC09923329E}, // 1e112 - {0x84DB8346B786151C, 0xA6539930BF6BFF45}, // 1e113 - {0xE612641865679A63, 0xCFE87F7CEF46FF16}, // 1e114 - {0x4FCB7E8F3F60C07E, 0x81F14FAE158C5F6E}, // 1e115 - {0xE3BE5E330F38F09D, 0xA26DA3999AEF7749}, // 1e116 - {0x5CADF5BFD3072CC5, 0xCB090C8001AB551C}, // 1e117 - {0x73D9732FC7C8F7F6, 0xFDCB4FA002162A63}, // 1e118 - {0x2867E7FDDCDD9AFA, 0x9E9F11C4014DDA7E}, // 1e119 - {0xB281E1FD541501B8, 0xC646D63501A1511D}, // 1e120 - {0x1F225A7CA91A4226, 0xF7D88BC24209A565}, // 1e121 - {0x3375788DE9B06958, 0x9AE757596946075F}, // 1e122 - {0x0052D6B1641C83AE, 0xC1A12D2FC3978937}, // 1e123 - {0xC0678C5DBD23A49A, 0xF209787BB47D6B84}, // 1e124 - {0xF840B7BA963646E0, 0x9745EB4D50CE6332}, // 1e125 - {0xB650E5A93BC3D898, 0xBD176620A501FBFF}, // 1e126 - {0xA3E51F138AB4CEBE, 0xEC5D3FA8CE427AFF}, // 1e127 - {0xC66F336C36B10137, 0x93BA47C980E98CDF}, // 1e128 - {0xB80B0047445D4184, 0xB8A8D9BBE123F017}, // 1e129 - {0xA60DC059157491E5, 0xE6D3102AD96CEC1D}, // 1e130 - {0x87C89837AD68DB2F, 0x9043EA1AC7E41392}, // 1e131 - {0x29BABE4598C311FB, 0xB454E4A179DD1877}, // 1e132 - {0xF4296DD6FEF3D67A, 0xE16A1DC9D8545E94}, // 1e133 - {0x1899E4A65F58660C, 0x8CE2529E2734BB1D}, // 1e134 - {0x5EC05DCFF72E7F8F, 0xB01AE745B101E9E4}, // 1e135 - {0x76707543F4FA1F73, 0xDC21A1171D42645D}, // 1e136 - {0x6A06494A791C53A8, 0x899504AE72497EBA}, // 1e137 - {0x0487DB9D17636892, 0xABFA45DA0EDBDE69}, // 1e138 - {0x45A9D2845D3C42B6, 0xD6F8D7509292D603}, // 1e139 - {0x0B8A2392BA45A9B2, 0x865B86925B9BC5C2}, // 1e140 - {0x8E6CAC7768D7141E, 0xA7F26836F282B732}, // 1e141 - {0x3207D795430CD926, 0xD1EF0244AF2364FF}, // 1e142 - {0x7F44E6BD49E807B8, 0x8335616AED761F1F}, // 1e143 - {0x5F16206C9C6209A6, 0xA402B9C5A8D3A6E7}, // 1e144 - {0x36DBA887C37A8C0F, 0xCD036837130890A1}, // 1e145 - {0xC2494954DA2C9789, 0x802221226BE55A64}, // 1e146 - {0xF2DB9BAA10B7BD6C, 0xA02AA96B06DEB0FD}, // 1e147 - {0x6F92829494E5ACC7, 0xC83553C5C8965D3D}, // 1e148 - {0xCB772339BA1F17F9, 0xFA42A8B73ABBF48C}, // 1e149 - {0xFF2A760414536EFB, 0x9C69A97284B578D7}, // 1e150 - {0xFEF5138519684ABA, 0xC38413CF25E2D70D}, // 1e151 - {0x7EB258665FC25D69, 0xF46518C2EF5B8CD1}, // 1e152 - {0xEF2F773FFBD97A61, 0x98BF2F79D5993802}, // 1e153 - {0xAAFB550FFACFD8FA, 0xBEEEFB584AFF8603}, // 1e154 - {0x95BA2A53F983CF38, 0xEEAABA2E5DBF6784}, // 1e155 - {0xDD945A747BF26183, 0x952AB45CFA97A0B2}, // 1e156 - {0x94F971119AEEF9E4, 0xBA756174393D88DF}, // 1e157 - {0x7A37CD5601AAB85D, 0xE912B9D1478CEB17}, // 1e158 - {0xAC62E055C10AB33A, 0x91ABB422CCB812EE}, // 1e159 - {0x577B986B314D6009, 0xB616A12B7FE617AA}, // 1e160 - {0xED5A7E85FDA0B80B, 0xE39C49765FDF9D94}, // 1e161 - {0x14588F13BE847307, 0x8E41ADE9FBEBC27D}, // 1e162 - {0x596EB2D8AE258FC8, 0xB1D219647AE6B31C}, // 1e163 - {0x6FCA5F8ED9AEF3BB, 0xDE469FBD99A05FE3}, // 1e164 - {0x25DE7BB9480D5854, 0x8AEC23D680043BEE}, // 1e165 - {0xAF561AA79A10AE6A, 0xADA72CCC20054AE9}, // 1e166 - {0x1B2BA1518094DA04, 0xD910F7FF28069DA4}, // 1e167 - {0x90FB44D2F05D0842, 0x87AA9AFF79042286}, // 1e168 - {0x353A1607AC744A53, 0xA99541BF57452B28}, // 1e169 - {0x42889B8997915CE8, 0xD3FA922F2D1675F2}, // 1e170 - {0x69956135FEBADA11, 0x847C9B5D7C2E09B7}, // 1e171 - {0x43FAB9837E699095, 0xA59BC234DB398C25}, // 1e172 - {0x94F967E45E03F4BB, 0xCF02B2C21207EF2E}, // 1e173 - {0x1D1BE0EEBAC278F5, 0x8161AFB94B44F57D}, // 1e174 - {0x6462D92A69731732, 0xA1BA1BA79E1632DC}, // 1e175 - {0x7D7B8F7503CFDCFE, 0xCA28A291859BBF93}, // 1e176 - {0x5CDA735244C3D43E, 0xFCB2CB35E702AF78}, // 1e177 - {0x3A0888136AFA64A7, 0x9DEFBF01B061ADAB}, // 1e178 - {0x088AAA1845B8FDD0, 0xC56BAEC21C7A1916}, // 1e179 - {0x8AAD549E57273D45, 0xF6C69A72A3989F5B}, // 1e180 - {0x36AC54E2F678864B, 0x9A3C2087A63F6399}, // 1e181 - {0x84576A1BB416A7DD, 0xC0CB28A98FCF3C7F}, // 1e182 - {0x656D44A2A11C51D5, 0xF0FDF2D3F3C30B9F}, // 1e183 - {0x9F644AE5A4B1B325, 0x969EB7C47859E743}, // 1e184 - {0x873D5D9F0DDE1FEE, 0xBC4665B596706114}, // 1e185 - {0xA90CB506D155A7EA, 0xEB57FF22FC0C7959}, // 1e186 - {0x09A7F12442D588F2, 0x9316FF75DD87CBD8}, // 1e187 - {0x0C11ED6D538AEB2F, 0xB7DCBF5354E9BECE}, // 1e188 - {0x8F1668C8A86DA5FA, 0xE5D3EF282A242E81}, // 1e189 - {0xF96E017D694487BC, 0x8FA475791A569D10}, // 1e190 - {0x37C981DCC395A9AC, 0xB38D92D760EC4455}, // 1e191 - {0x85BBE253F47B1417, 0xE070F78D3927556A}, // 1e192 - {0x93956D7478CCEC8E, 0x8C469AB843B89562}, // 1e193 - {0x387AC8D1970027B2, 0xAF58416654A6BABB}, // 1e194 - {0x06997B05FCC0319E, 0xDB2E51BFE9D0696A}, // 1e195 - {0x441FECE3BDF81F03, 0x88FCF317F22241E2}, // 1e196 - {0xD527E81CAD7626C3, 0xAB3C2FDDEEAAD25A}, // 1e197 - {0x8A71E223D8D3B074, 0xD60B3BD56A5586F1}, // 1e198 - {0xF6872D5667844E49, 0x85C7056562757456}, // 1e199 - {0xB428F8AC016561DB, 0xA738C6BEBB12D16C}, // 1e200 - {0xE13336D701BEBA52, 0xD106F86E69D785C7}, // 1e201 - {0xECC0024661173473, 0x82A45B450226B39C}, // 1e202 - {0x27F002D7F95D0190, 0xA34D721642B06084}, // 1e203 - {0x31EC038DF7B441F4, 0xCC20CE9BD35C78A5}, // 1e204 - {0x7E67047175A15271, 0xFF290242C83396CE}, // 1e205 - {0x0F0062C6E984D386, 0x9F79A169BD203E41}, // 1e206 - {0x52C07B78A3E60868, 0xC75809C42C684DD1}, // 1e207 - {0xA7709A56CCDF8A82, 0xF92E0C3537826145}, // 1e208 - {0x88A66076400BB691, 0x9BBCC7A142B17CCB}, // 1e209 - {0x6ACFF893D00EA435, 0xC2ABF989935DDBFE}, // 1e210 - {0x0583F6B8C4124D43, 0xF356F7EBF83552FE}, // 1e211 - {0xC3727A337A8B704A, 0x98165AF37B2153DE}, // 1e212 - {0x744F18C0592E4C5C, 0xBE1BF1B059E9A8D6}, // 1e213 - {0x1162DEF06F79DF73, 0xEDA2EE1C7064130C}, // 1e214 - {0x8ADDCB5645AC2BA8, 0x9485D4D1C63E8BE7}, // 1e215 - {0x6D953E2BD7173692, 0xB9A74A0637CE2EE1}, // 1e216 - {0xC8FA8DB6CCDD0437, 0xE8111C87C5C1BA99}, // 1e217 - {0x1D9C9892400A22A2, 0x910AB1D4DB9914A0}, // 1e218 - {0x2503BEB6D00CAB4B, 0xB54D5E4A127F59C8}, // 1e219 - {0x2E44AE64840FD61D, 0xE2A0B5DC971F303A}, // 1e220 - {0x5CEAECFED289E5D2, 0x8DA471A9DE737E24}, // 1e221 - {0x7425A83E872C5F47, 0xB10D8E1456105DAD}, // 1e222 - {0xD12F124E28F77719, 0xDD50F1996B947518}, // 1e223 - {0x82BD6B70D99AAA6F, 0x8A5296FFE33CC92F}, // 1e224 - {0x636CC64D1001550B, 0xACE73CBFDC0BFB7B}, // 1e225 - {0x3C47F7E05401AA4E, 0xD8210BEFD30EFA5A}, // 1e226 - {0x65ACFAEC34810A71, 0x8714A775E3E95C78}, // 1e227 - {0x7F1839A741A14D0D, 0xA8D9D1535CE3B396}, // 1e228 - {0x1EDE48111209A050, 0xD31045A8341CA07C}, // 1e229 - {0x934AED0AAB460432, 0x83EA2B892091E44D}, // 1e230 - {0xF81DA84D5617853F, 0xA4E4B66B68B65D60}, // 1e231 - {0x36251260AB9D668E, 0xCE1DE40642E3F4B9}, // 1e232 - {0xC1D72B7C6B426019, 0x80D2AE83E9CE78F3}, // 1e233 - {0xB24CF65B8612F81F, 0xA1075A24E4421730}, // 1e234 - {0xDEE033F26797B627, 0xC94930AE1D529CFC}, // 1e235 - {0x169840EF017DA3B1, 0xFB9B7CD9A4A7443C}, // 1e236 - {0x8E1F289560EE864E, 0x9D412E0806E88AA5}, // 1e237 - {0xF1A6F2BAB92A27E2, 0xC491798A08A2AD4E}, // 1e238 - {0xAE10AF696774B1DB, 0xF5B5D7EC8ACB58A2}, // 1e239 - {0xACCA6DA1E0A8EF29, 0x9991A6F3D6BF1765}, // 1e240 - {0x17FD090A58D32AF3, 0xBFF610B0CC6EDD3F}, // 1e241 - {0xDDFC4B4CEF07F5B0, 0xEFF394DCFF8A948E}, // 1e242 - {0x4ABDAF101564F98E, 0x95F83D0A1FB69CD9}, // 1e243 - {0x9D6D1AD41ABE37F1, 0xBB764C4CA7A4440F}, // 1e244 - {0x84C86189216DC5ED, 0xEA53DF5FD18D5513}, // 1e245 - {0x32FD3CF5B4E49BB4, 0x92746B9BE2F8552C}, // 1e246 - {0x3FBC8C33221DC2A1, 0xB7118682DBB66A77}, // 1e247 - {0x0FABAF3FEAA5334A, 0xE4D5E82392A40515}, // 1e248 - {0x29CB4D87F2A7400E, 0x8F05B1163BA6832D}, // 1e249 - {0x743E20E9EF511012, 0xB2C71D5BCA9023F8}, // 1e250 - {0x914DA9246B255416, 0xDF78E4B2BD342CF6}, // 1e251 - {0x1AD089B6C2F7548E, 0x8BAB8EEFB6409C1A}, // 1e252 - {0xA184AC2473B529B1, 0xAE9672ABA3D0C320}, // 1e253 - {0xC9E5D72D90A2741E, 0xDA3C0F568CC4F3E8}, // 1e254 - {0x7E2FA67C7A658892, 0x8865899617FB1871}, // 1e255 - {0xDDBB901B98FEEAB7, 0xAA7EEBFB9DF9DE8D}, // 1e256 - {0x552A74227F3EA565, 0xD51EA6FA85785631}, // 1e257 - {0xD53A88958F87275F, 0x8533285C936B35DE}, // 1e258 - {0x8A892ABAF368F137, 0xA67FF273B8460356}, // 1e259 - {0x2D2B7569B0432D85, 0xD01FEF10A657842C}, // 1e260 - {0x9C3B29620E29FC73, 0x8213F56A67F6B29B}, // 1e261 - {0x8349F3BA91B47B8F, 0xA298F2C501F45F42}, // 1e262 - {0x241C70A936219A73, 0xCB3F2F7642717713}, // 1e263 - {0xED238CD383AA0110, 0xFE0EFB53D30DD4D7}, // 1e264 - {0xF4363804324A40AA, 0x9EC95D1463E8A506}, // 1e265 - {0xB143C6053EDCD0D5, 0xC67BB4597CE2CE48}, // 1e266 - {0xDD94B7868E94050A, 0xF81AA16FDC1B81DA}, // 1e267 - {0xCA7CF2B4191C8326, 0x9B10A4E5E9913128}, // 1e268 - {0xFD1C2F611F63A3F0, 0xC1D4CE1F63F57D72}, // 1e269 - {0xBC633B39673C8CEC, 0xF24A01A73CF2DCCF}, // 1e270 - {0xD5BE0503E085D813, 0x976E41088617CA01}, // 1e271 - {0x4B2D8644D8A74E18, 0xBD49D14AA79DBC82}, // 1e272 - {0xDDF8E7D60ED1219E, 0xEC9C459D51852BA2}, // 1e273 - {0xCABB90E5C942B503, 0x93E1AB8252F33B45}, // 1e274 - {0x3D6A751F3B936243, 0xB8DA1662E7B00A17}, // 1e275 - {0x0CC512670A783AD4, 0xE7109BFBA19C0C9D}, // 1e276 - {0x27FB2B80668B24C5, 0x906A617D450187E2}, // 1e277 - {0xB1F9F660802DEDF6, 0xB484F9DC9641E9DA}, // 1e278 - {0x5E7873F8A0396973, 0xE1A63853BBD26451}, // 1e279 - {0xDB0B487B6423E1E8, 0x8D07E33455637EB2}, // 1e280 - {0x91CE1A9A3D2CDA62, 0xB049DC016ABC5E5F}, // 1e281 - {0x7641A140CC7810FB, 0xDC5C5301C56B75F7}, // 1e282 - {0xA9E904C87FCB0A9D, 0x89B9B3E11B6329BA}, // 1e283 - {0x546345FA9FBDCD44, 0xAC2820D9623BF429}, // 1e284 - {0xA97C177947AD4095, 0xD732290FBACAF133}, // 1e285 - {0x49ED8EABCCCC485D, 0x867F59A9D4BED6C0}, // 1e286 - {0x5C68F256BFFF5A74, 0xA81F301449EE8C70}, // 1e287 - {0x73832EEC6FFF3111, 0xD226FC195C6A2F8C}, // 1e288 -}; - -// wuffs_private_impl__f64_powers_of_10 holds powers of 10 that can be exactly -// represented by a float64 (what C calls a double). -static const double wuffs_private_impl__f64_powers_of_10[23] = { - 1e0, 1e1, 1e2, 1e3, 1e4, 1e5, 1e6, 1e7, 1e8, 1e9, 1e10, 1e11, - 1e12, 1e13, 1e14, 1e15, 1e16, 1e17, 1e18, 1e19, 1e20, 1e21, 1e22, -}; - -// ---------------- IEEE 754 Floating Point - -WUFFS_BASE__MAYBE_STATIC wuffs_base__lossy_value_u16 // -wuffs_base__ieee_754_bit_representation__from_f64_to_u16_truncate(double f) { - uint64_t u = 0; - if (sizeof(uint64_t) == sizeof(double)) { - memcpy(&u, &f, sizeof(uint64_t)); +// For example, if history was [10, 11, 12, 13, 14, 15, 16, 17, 18] then: +// - copying l=3, d=8 produces [11, 12, 13] and the cusp is (13, 14). +// - copying l=3, d=2 produces [17, 18, 17] and the cusp is (17, 18). +// +// The caller needs to prove that: +// - length >= 1 +// - length <= (io2_w - *ptr_iop_w) +// - distance >= 1 +// - distance <= (*ptr_iop_w - io0_w) +static inline uint32_t // +wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast_return_cusp( + uint8_t** ptr_iop_w, + uint8_t* io0_w, + uint8_t* io2_w, + uint32_t length, + uint32_t distance) { + uint8_t* p = *ptr_iop_w; + uint8_t* q = p - distance; + uint32_t n = length; + for (; n >= 3; n -= 3) { + *p++ = *q++; + *p++ = *q++; + *p++ = *q++; } - uint16_t neg = ((uint16_t)((u >> 63) << 15)); - u &= 0x7FFFFFFFFFFFFFFF; - uint64_t exp = u >> 52; - uint64_t man = u & 0x000FFFFFFFFFFFFF; - - if (exp == 0x7FF) { - if (man == 0) { // Infinity. - wuffs_base__lossy_value_u16 ret; - ret.value = neg | 0x7C00; - ret.lossy = false; - return ret; - } - // NaN. Shift the 52 mantissa bits to 10 mantissa bits, keeping the most - // significant mantissa bit (quiet vs signaling NaNs). Also set the low 9 - // bits of ret.value so that the 10-bit mantissa is non-zero. - wuffs_base__lossy_value_u16 ret; - ret.value = neg | 0x7DFF | ((uint16_t)(man >> 42)); - ret.lossy = false; - return ret; - - } else if (exp > 0x40E) { // Truncate to the largest finite f16. - wuffs_base__lossy_value_u16 ret; - ret.value = neg | 0x7BFF; - ret.lossy = true; - return ret; - - } else if (exp <= 0x3E6) { // Truncate to zero. - wuffs_base__lossy_value_u16 ret; - ret.value = neg; - ret.lossy = (u != 0); - return ret; - - } else if (exp <= 0x3F0) { // Normal f64, subnormal f16. - // Convert from a 53-bit mantissa (after realizing the implicit bit) to a - // 10-bit mantissa and then adjust for the exponent. - man |= 0x0010000000000000; - uint32_t shift = ((uint32_t)(1051 - exp)); // 1051 = 0x3F0 + 53 - 10. - uint64_t shifted_man = man >> shift; - wuffs_base__lossy_value_u16 ret; - ret.value = neg | ((uint16_t)shifted_man); - ret.lossy = (shifted_man << shift) != man; - return ret; + for (; n; n--) { + *p++ = *q++; } - - // Normal f64, normal f16. - - // Re-bias from 1023 to 15 and shift above f16's 10 mantissa bits. - exp = (exp - 1008) << 10; // 1008 = 1023 - 15 = 0x3FF - 0xF. - - // Convert from a 52-bit mantissa (excluding the implicit bit) to a 10-bit - // mantissa (again excluding the implicit bit). We lose some information if - // any of the bottom 42 bits are non-zero. - wuffs_base__lossy_value_u16 ret; - ret.value = neg | ((uint16_t)exp) | ((uint16_t)(man >> 42)); - ret.lossy = (man << 22) != 0; - return ret; + *ptr_iop_w = p; + return (uint32_t)wuffs_base__peek_u16le__no_bounds_check(q - 1); } -WUFFS_BASE__MAYBE_STATIC wuffs_base__lossy_value_u32 // -wuffs_base__ieee_754_bit_representation__from_f64_to_u32_truncate(double f) { - uint64_t u = 0; - if (sizeof(uint64_t) == sizeof(double)) { - memcpy(&u, &f, sizeof(uint64_t)); - } - uint32_t neg = ((uint32_t)(u >> 63)) << 31; - u &= 0x7FFFFFFFFFFFFFFF; - uint64_t exp = u >> 52; - uint64_t man = u & 0x000FFFFFFFFFFFFF; - - if (exp == 0x7FF) { - if (man == 0) { // Infinity. - wuffs_base__lossy_value_u32 ret; - ret.value = neg | 0x7F800000; - ret.lossy = false; - return ret; +// wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_distance_1_fast +// copies the previous byte (the one immediately before *ptr_iop_w), copying 8 +// byte chunks at a time. Each chunk contains 8 repetitions of the same byte. +// +// In terms of number of bytes copied, length is rounded up to a multiple of 8. +// As a special case, a zero length rounds up to 8 (even though 0 is already a +// multiple of 8), since there is always at least one 8 byte chunk copied. +// +// In terms of advancing *ptr_iop_w, length is not rounded up. +// +// The caller needs to prove that: +// - length >= 1 +// - (length + 8) <= (io2_w - *ptr_iop_w) +// - distance == 1 +// - distance <= (*ptr_iop_w - io0_w) +static inline uint32_t // +wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_distance_1_fast( + uint8_t** ptr_iop_w, + uint8_t* io0_w, + uint8_t* io2_w, + uint32_t length, + uint32_t distance) { + uint8_t* p = *ptr_iop_w; + uint64_t x = p[-1]; + x |= x << 8; + x |= x << 16; + x |= x << 32; + uint32_t n = length; + while (1) { + wuffs_base__poke_u64le__no_bounds_check(p, x); + if (n <= 8) { + p += n; + break; } - // NaN. Shift the 52 mantissa bits to 23 mantissa bits, keeping the most - // significant mantissa bit (quiet vs signaling NaNs). Also set the low 22 - // bits of ret.value so that the 23-bit mantissa is non-zero. - wuffs_base__lossy_value_u32 ret; - ret.value = neg | 0x7FBFFFFF | ((uint32_t)(man >> 29)); - ret.lossy = false; - return ret; - - } else if (exp > 0x47E) { // Truncate to the largest finite f32. - wuffs_base__lossy_value_u32 ret; - ret.value = neg | 0x7F7FFFFF; - ret.lossy = true; - return ret; - - } else if (exp <= 0x369) { // Truncate to zero. - wuffs_base__lossy_value_u32 ret; - ret.value = neg; - ret.lossy = (u != 0); - return ret; - - } else if (exp <= 0x380) { // Normal f64, subnormal f32. - // Convert from a 53-bit mantissa (after realizing the implicit bit) to a - // 23-bit mantissa and then adjust for the exponent. - man |= 0x0010000000000000; - uint32_t shift = ((uint32_t)(926 - exp)); // 926 = 0x380 + 53 - 23. - uint64_t shifted_man = man >> shift; - wuffs_base__lossy_value_u32 ret; - ret.value = neg | ((uint32_t)shifted_man); - ret.lossy = (shifted_man << shift) != man; - return ret; + p += 8; + n -= 8; } - - // Normal f64, normal f32. - - // Re-bias from 1023 to 127 and shift above f32's 23 mantissa bits. - exp = (exp - 896) << 23; // 896 = 1023 - 127 = 0x3FF - 0x7F. - - // Convert from a 52-bit mantissa (excluding the implicit bit) to a 23-bit - // mantissa (again excluding the implicit bit). We lose some information if - // any of the bottom 29 bits are non-zero. - wuffs_base__lossy_value_u32 ret; - ret.value = neg | ((uint32_t)exp) | ((uint32_t)(man >> 29)); - ret.lossy = (man << 35) != 0; - return ret; + *ptr_iop_w = p; + return length; } -// -------- - -#define WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE 2047 -#define WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION 800 - -// WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL is the largest N such that -// ((10 << N) < (1 << 64)). -#define WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL 60 - -// wuffs_private_impl__high_prec_dec (abbreviated as HPD) is a fixed precision -// floating point decimal number, augmented with ±infinity values, but it -// cannot represent NaN (Not a Number). +// wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_distance_1_fast_return_cusp +// copies the previous byte (the one immediately before *ptr_iop_w), copying 8 +// byte chunks at a time. Each chunk contains 8 repetitions of the same byte. +// It also returns the cusp: a byte pair (as a u16le) being the last byte of +// and next byte after the copied history. // -// "High precision" means that the mantissa holds 800 decimal digits. 800 is -// WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION. +// In terms of number of bytes copied, length is rounded up to a multiple of 8. +// As a special case, a zero length rounds up to 8 (even though 0 is already a +// multiple of 8), since there is always at least one 8 byte chunk copied. // -// An HPD isn't for general purpose arithmetic, only for conversions to and -// from IEEE 754 double-precision floating point, where the largest and -// smallest positive, finite values are approximately 1.8e+308 and 4.9e-324. -// HPD exponents above +2047 mean infinity, below -2047 mean zero. The ±2047 -// bounds are further away from zero than ±(324 + 800), where 800 and 2047 is -// WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION and -// WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE. -// -// digits[.. num_digits] are the number's digits in big-endian order. The -// uint8_t values are in the range [0 ..= 9], not ['0' ..= '9'], where e.g. '7' -// is the ASCII value 0x37. +// In terms of advancing *ptr_iop_w, length is not rounded up. // -// decimal_point is the index (within digits) of the decimal point. It may be -// negative or be larger than num_digits, in which case the explicit digits are -// padded with implicit zeroes. +// The caller needs to prove that: +// - length >= 1 +// - (length + 8) <= (io2_w - *ptr_iop_w) +// - distance == 1 +// - distance <= (*ptr_iop_w - io0_w) +static inline uint32_t // +wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_distance_1_fast_return_cusp( + uint8_t** ptr_iop_w, + uint8_t* io0_w, + uint8_t* io2_w, + uint32_t length, + uint32_t distance) { + uint8_t* p = *ptr_iop_w; + uint8_t* q = p - distance; + uint64_t x = p[-1]; + x |= x << 8; + x |= x << 16; + x |= x << 32; + uint32_t n = length; + while (1) { + wuffs_base__poke_u64le__no_bounds_check(p, x); + if (n <= 8) { + p += n; + q += n; + break; + } + p += 8; + q += 8; + n -= 8; + } + *ptr_iop_w = p; + return (uint32_t)wuffs_base__peek_u16le__no_bounds_check(q - 1); +} + +// wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast +// is like the +// wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast function +// above, but copies 8 byte chunks at a time. // -// For example, if num_digits is 3 and digits is "\x07\x08\x09": -// - A decimal_point of -2 means ".00789" -// - A decimal_point of -1 means ".0789" -// - A decimal_point of +0 means ".789" -// - A decimal_point of +1 means "7.89" -// - A decimal_point of +2 means "78.9" -// - A decimal_point of +3 means "789." -// - A decimal_point of +4 means "7890." -// - A decimal_point of +5 means "78900." +// In terms of number of bytes copied, length is rounded up to a multiple of 8. +// As a special case, a zero length rounds up to 8 (even though 0 is already a +// multiple of 8), since there is always at least one 8 byte chunk copied. // -// As above, a decimal_point higher than +2047 means that the overall value is -// infinity, lower than -2047 means zero. +// In terms of advancing *ptr_iop_w, length is not rounded up. // -// negative is a sign bit. An HPD can distinguish positive and negative zero. +// The caller needs to prove that: +// - length >= 1 +// - (length + 8) <= (io2_w - *ptr_iop_w) +// - distance >= 8 +// - distance <= (*ptr_iop_w - io0_w) +static inline uint32_t // +wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast( + uint8_t** ptr_iop_w, + uint8_t* io0_w, + uint8_t* io2_w, + uint32_t length, + uint32_t distance) { + uint8_t* p = *ptr_iop_w; + uint8_t* q = p - distance; + uint32_t n = length; + while (1) { + memcpy(p, q, 8); + if (n <= 8) { + p += n; + break; + } + p += 8; + q += 8; + n -= 8; + } + *ptr_iop_w = p; + return length; +} + +// wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast_return_cusp +// is like the +// wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast function +// above, but copies 8 byte chunks at a time. It also returns the cusp: a byte +// pair (as a u16le) being the last byte of and next byte after the copied +// history. // -// truncated is whether there are more than -// WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION digits, and at least one of those -// extra digits are non-zero. The existence of long-tail digits can affect -// rounding. +// In terms of number of bytes copied, length is rounded up to a multiple of 8. +// As a special case, a zero length rounds up to 8 (even though 0 is already a +// multiple of 8), since there is always at least one 8 byte chunk copied. // -// The "all fields are zero" value is valid, and represents the number +0. -typedef struct wuffs_private_impl__high_prec_dec__struct { - uint32_t num_digits; - int32_t decimal_point; - bool negative; - bool truncated; - uint8_t digits[WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION]; -} wuffs_private_impl__high_prec_dec; - -// wuffs_private_impl__high_prec_dec__trim trims trailing zeroes from the -// h->digits[.. h->num_digits] slice. They have no benefit, since we explicitly -// track h->decimal_point. +// In terms of advancing *ptr_iop_w, length is not rounded up. // -// Preconditions: -// - h is non-NULL. -static inline void // -wuffs_private_impl__high_prec_dec__trim(wuffs_private_impl__high_prec_dec* h) { - while ((h->num_digits > 0) && (h->digits[h->num_digits - 1] == 0)) { - h->num_digits--; +// The caller needs to prove that: +// - length >= 1 +// - (length + 8) <= (io2_w - *ptr_iop_w) +// - distance >= 8 +// - distance <= (*ptr_iop_w - io0_w) +static inline uint32_t // +wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast_return_cusp( + uint8_t** ptr_iop_w, + uint8_t* io0_w, + uint8_t* io2_w, + uint32_t length, + uint32_t distance) { + uint8_t* p = *ptr_iop_w; + uint8_t* q = p - distance; + uint32_t n = length; + while (1) { + memcpy(p, q, 8); + if (n <= 8) { + p += n; + q += n; + break; + } + p += 8; + q += 8; + n -= 8; } + *ptr_iop_w = p; + return (uint32_t)wuffs_base__peek_u16le__no_bounds_check(q - 1); } -// wuffs_private_impl__high_prec_dec__assign sets h to represent the number x. -// -// Preconditions: -// - h is non-NULL. -static void // -wuffs_private_impl__high_prec_dec__assign(wuffs_private_impl__high_prec_dec* h, - uint64_t x, - bool negative) { - uint32_t n = 0; +static inline uint32_t // +wuffs_private_impl__io_writer__limited_copy_u32_from_reader( + uint8_t** ptr_iop_w, + uint8_t* io2_w, + uint32_t length, + const uint8_t** ptr_iop_r, + const uint8_t* io2_r) { + uint8_t* iop_w = *ptr_iop_w; + size_t n = length; + if (n > ((size_t)(io2_w - iop_w))) { + n = (size_t)(io2_w - iop_w); + } + const uint8_t* iop_r = *ptr_iop_r; + if (n > ((size_t)(io2_r - iop_r))) { + n = (size_t)(io2_r - iop_r); + } + if (n > 0) { + memmove(iop_w, iop_r, n); + *ptr_iop_w += n; + *ptr_iop_r += n; + } + return (uint32_t)(n); +} - // Set h->digits. - if (x > 0) { - // Calculate the digits, working right-to-left. After we determine n (how - // many digits there are), copy from buf to h->digits. - // - // UINT64_MAX, 18446744073709551615, is 20 digits long. It can be faster to - // copy a constant number of bytes than a variable number (20 instead of - // n). Make buf large enough (and start writing to it from the middle) so - // that can we always copy 20 bytes: the slice buf[(20-n) .. (40-n)]. - uint8_t buf[40] = {0}; - uint8_t* ptr = &buf[20]; - do { - uint64_t remaining = x / 10; - x -= remaining * 10; - ptr--; - *ptr = (uint8_t)x; - n++; - x = remaining; - } while (x > 0); - memcpy(h->digits, ptr, 20); +static inline uint32_t // +wuffs_private_impl__io_writer__limited_copy_u32_from_slice( + uint8_t** ptr_iop_w, + uint8_t* io2_w, + uint32_t length, + wuffs_base__slice_u8 src) { + uint8_t* iop_w = *ptr_iop_w; + size_t n = src.len; + if (n > length) { + n = length; + } + if (n > ((size_t)(io2_w - iop_w))) { + n = (size_t)(io2_w - iop_w); + } + if (n > 0) { + memmove(iop_w, src.ptr, n); + *ptr_iop_w += n; } + return (uint32_t)(n); +} - // Set h's other fields. - h->num_digits = n; - h->decimal_point = (int32_t)n; - h->negative = negative; - h->truncated = false; - wuffs_private_impl__high_prec_dec__trim(h); +static inline wuffs_base__io_buffer* // +wuffs_private_impl__io_writer__set(wuffs_base__io_buffer* b, + uint8_t** ptr_iop_w, + uint8_t** ptr_io0_w, + uint8_t** ptr_io1_w, + uint8_t** ptr_io2_w, + wuffs_base__slice_u8 data, + uint64_t history_position) { + b->data = data; + b->meta.wi = 0; + b->meta.ri = 0; + b->meta.pos = history_position; + b->meta.closed = false; + + *ptr_iop_w = data.ptr; + *ptr_io0_w = data.ptr; + *ptr_io1_w = data.ptr; + *ptr_io2_w = data.ptr + data.len; + + return b; } -static wuffs_base__status // -wuffs_private_impl__high_prec_dec__parse(wuffs_private_impl__high_prec_dec* h, - wuffs_base__slice_u8 s, - uint32_t options) { - if (!h) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - h->num_digits = 0; - h->decimal_point = 0; - h->negative = false; - h->truncated = false; +// ---------------- I/O (Utility) - uint8_t* p = s.ptr; - uint8_t* q = s.ptr + s.len; +#define wuffs_base__utility__empty_io_reader wuffs_base__empty_io_reader +#define wuffs_base__utility__empty_io_writer wuffs_base__empty_io_writer - if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { - for (;; p++) { - if (p >= q) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } else if (*p != '_') { - break; - } - } - } +// ---------------- Tokens - // Parse sign. - do { - if (*p == '+') { - p++; - } else if (*p == '-') { - h->negative = true; - p++; - } else { - break; - } - if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { - for (;; p++) { - if (p >= q) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } else if (*p != '_') { - break; - } - } - } - } while (0); +// ---------------- Tokens (Utility) - // Parse digits, up to (and including) a '.', 'E' or 'e'. Examples for each - // limb in this if-else chain: - // - "0.789" - // - "1002.789" - // - ".789" - // - Other (invalid input). - uint32_t nd = 0; - int32_t dp = 0; - bool no_digits_before_separator = false; - if (('0' == *p) && - !(options & - WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_MULTIPLE_LEADING_ZEROES)) { - p++; - for (;; p++) { - if (p >= q) { - goto after_all; - } else if (*p == - ((options & - WUFFS_BASE__PARSE_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) - ? ',' - : '.')) { - p++; - goto after_sep; - } else if ((*p == 'E') || (*p == 'e')) { - p++; - goto after_exp; - } else if ((*p != '_') || - !(options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - } +// ---------------- Memory Allocation - } else if (('0' <= *p) && (*p <= '9')) { - if (*p == '0') { - for (; (p < q) && (*p == '0'); p++) { - } - } else { - h->digits[nd++] = (uint8_t)(*p - '0'); - dp = (int32_t)nd; - p++; - } +// ---------------- Images - for (;; p++) { - if (p >= q) { - goto after_all; - } else if (('0' <= *p) && (*p <= '9')) { - if (nd < WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) { - h->digits[nd++] = (uint8_t)(*p - '0'); - dp = (int32_t)nd; - } else if ('0' != *p) { - // Long-tail non-zeroes set the truncated bit. - h->truncated = true; - } - } else if (*p == - ((options & - WUFFS_BASE__PARSE_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) - ? ',' - : '.')) { - p++; - goto after_sep; - } else if ((*p == 'E') || (*p == 'e')) { - p++; - goto after_exp; - } else if ((*p != '_') || - !(options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - } +WUFFS_BASE__MAYBE_STATIC uint64_t // +wuffs_base__pixel_swizzler__limited_swizzle_u32_interleaved_from_reader( + const wuffs_base__pixel_swizzler* p, + uint32_t up_to_num_pixels, + wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 dst_palette, + const uint8_t** ptr_iop_r, + const uint8_t* io2_r); - } else if (*p == ((options & - WUFFS_BASE__PARSE_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) - ? ',' - : '.')) { - p++; - no_digits_before_separator = true; +WUFFS_BASE__MAYBE_STATIC uint64_t // +wuffs_base__pixel_swizzler__swizzle_interleaved_from_reader( + const wuffs_base__pixel_swizzler* p, + wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 dst_palette, + const uint8_t** ptr_iop_r, + const uint8_t* io2_r); - } else { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } +WUFFS_BASE__MAYBE_STATIC uint64_t // +wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black( + const wuffs_base__pixel_swizzler* p, + wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 dst_palette, + uint64_t num_pixels); -after_sep: - for (;; p++) { - if (p >= q) { - goto after_all; - } else if ('0' == *p) { - if (nd == 0) { - // Track leading zeroes implicitly. - dp--; - } else if (nd < WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) { - h->digits[nd++] = (uint8_t)(*p - '0'); - } - } else if (('0' < *p) && (*p <= '9')) { - if (nd < WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) { - h->digits[nd++] = (uint8_t)(*p - '0'); - } else { - // Long-tail non-zeroes set the truncated bit. - h->truncated = true; - } - } else if ((*p == 'E') || (*p == 'e')) { - p++; - goto after_exp; - } else if ((*p != '_') || - !(options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - } +WUFFS_BASE__MAYBE_STATIC wuffs_base__status // +wuffs_base__pixel_swizzler__swizzle_ycck( + const wuffs_base__pixel_swizzler* p, + wuffs_base__pixel_buffer* dst, + wuffs_base__slice_u8 dst_palette, + uint32_t x_min_incl, + uint32_t x_max_excl, + uint32_t y_min_incl, + uint32_t y_max_excl, + wuffs_base__slice_u8 src0, + wuffs_base__slice_u8 src1, + wuffs_base__slice_u8 src2, + wuffs_base__slice_u8 src3, + uint32_t width0, + uint32_t width1, + uint32_t width2, + uint32_t width3, + uint32_t height0, + uint32_t height1, + uint32_t height2, + uint32_t height3, + uint32_t stride0, + uint32_t stride1, + uint32_t stride2, + uint32_t stride3, + uint8_t h0, + uint8_t h1, + uint8_t h2, + uint8_t h3, + uint8_t v0, + uint8_t v1, + uint8_t v2, + uint8_t v3, + bool is_rgb_or_cmyk, + bool triangle_filter_for_2to1, + wuffs_base__slice_u8 scratch_buffer_2k); -after_exp: - do { - if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { - for (;; p++) { - if (p >= q) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } else if (*p != '_') { - break; - } - } - } +// ---------------- Images (Utility) - int32_t exp_sign = +1; - if (*p == '+') { - p++; - } else if (*p == '-') { - exp_sign = -1; - p++; - } +#define wuffs_base__utility__make_pixel_format wuffs_base__make_pixel_format - int32_t exp = 0; - const int32_t exp_large = WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE + - WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION; - bool saw_exp_digits = false; - for (; p < q; p++) { - if ((*p == '_') && - (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { - // No-op. - } else if (('0' <= *p) && (*p <= '9')) { - saw_exp_digits = true; - if (exp < exp_large) { - exp = (10 * exp) + ((int32_t)(*p - '0')); - } - } else { - break; - } - } - if (!saw_exp_digits) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - dp += exp_sign * exp; - } while (0); +// ---------------- String Conversions -after_all: - if (p != q) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - h->num_digits = nd; - if (nd == 0) { - if (no_digits_before_separator) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - h->decimal_point = 0; - } else if (dp < -WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE) { - h->decimal_point = -WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE - 1; - } else if (dp > +WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE) { - h->decimal_point = +WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE + 1; - } else { - h->decimal_point = dp; - } - wuffs_private_impl__high_prec_dec__trim(h); - return wuffs_base__make_status(NULL); -} +// ---------------- Unicode and UTF-8 -// -------- +// ---------------- -// wuffs_private_impl__high_prec_dec__lshift_num_new_digits returns the number -// of additional decimal digits when left-shifting by shift. -// -// See below for preconditions. -static uint32_t // -wuffs_private_impl__high_prec_dec__lshift_num_new_digits( - wuffs_private_impl__high_prec_dec* h, - uint32_t shift) { - // Masking with 0x3F should be unnecessary (assuming the preconditions) but - // it's cheap and ensures that we don't overflow the - // wuffs_private_impl__hpd_left_shift array. - shift &= 63; +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ + defined(WUFFS_CONFIG__MODULE__BASE__CORE) - uint32_t x_a = wuffs_private_impl__hpd_left_shift[shift]; - uint32_t x_b = wuffs_private_impl__hpd_left_shift[shift + 1]; - uint32_t num_new_digits = x_a >> 11; - uint32_t pow5_a = 0x7FF & x_a; - uint32_t pow5_b = 0x7FF & x_b; +const uint8_t wuffs_private_impl__low_bits_mask__u8[8] = { + 0x00, 0x01, 0x03, 0x07, 0x0F, 0x1F, 0x3F, 0x7F, +}; - const uint8_t* pow5 = &wuffs_private_impl__powers_of_5[pow5_a]; - uint32_t i = 0; - uint32_t n = pow5_b - pow5_a; - for (; i < n; i++) { - if (i >= h->num_digits) { - return num_new_digits - 1; - } else if (h->digits[i] == pow5[i]) { - continue; - } else if (h->digits[i] < pow5[i]) { - return num_new_digits - 1; - } else { - return num_new_digits; - } - } - return num_new_digits; -} +const uint16_t wuffs_private_impl__low_bits_mask__u16[16] = { + 0x0000, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F, 0x003F, 0x007F, + 0x00FF, 0x01FF, 0x03FF, 0x07FF, 0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF, +}; -// -------- +const uint32_t wuffs_private_impl__low_bits_mask__u32[32] = { + 0x00000000, 0x00000001, 0x00000003, 0x00000007, 0x0000000F, 0x0000001F, + 0x0000003F, 0x0000007F, 0x000000FF, 0x000001FF, 0x000003FF, 0x000007FF, + 0x00000FFF, 0x00001FFF, 0x00003FFF, 0x00007FFF, 0x0000FFFF, 0x0001FFFF, + 0x0003FFFF, 0x0007FFFF, 0x000FFFFF, 0x001FFFFF, 0x003FFFFF, 0x007FFFFF, + 0x00FFFFFF, 0x01FFFFFF, 0x03FFFFFF, 0x07FFFFFF, 0x0FFFFFFF, 0x1FFFFFFF, + 0x3FFFFFFF, 0x7FFFFFFF, +}; -// wuffs_private_impl__high_prec_dec__rounded_integer returns the integral -// (non-fractional) part of h, provided that it is 18 or fewer decimal digits. -// For 19 or more digits, it returns UINT64_MAX. Note that: -// - (1 << 53) is 9007199254740992, which has 16 decimal digits. -// - (1 << 56) is 72057594037927936, which has 17 decimal digits. -// - (1 << 59) is 576460752303423488, which has 18 decimal digits. -// - (1 << 63) is 9223372036854775808, which has 19 decimal digits. -// and that IEEE 754 double precision has 52 mantissa bits. -// -// That integral part is rounded-to-even: rounding 7.5 or 8.5 both give 8. -// -// h's negative bit is ignored: rounding -8.6 returns 9. -// -// See below for preconditions. -static uint64_t // -wuffs_private_impl__high_prec_dec__rounded_integer( - wuffs_private_impl__high_prec_dec* h) { - if ((h->num_digits == 0) || (h->decimal_point < 0)) { +const uint64_t wuffs_private_impl__low_bits_mask__u64[64] = { + 0x0000000000000000, 0x0000000000000001, 0x0000000000000003, + 0x0000000000000007, 0x000000000000000F, 0x000000000000001F, + 0x000000000000003F, 0x000000000000007F, 0x00000000000000FF, + 0x00000000000001FF, 0x00000000000003FF, 0x00000000000007FF, + 0x0000000000000FFF, 0x0000000000001FFF, 0x0000000000003FFF, + 0x0000000000007FFF, 0x000000000000FFFF, 0x000000000001FFFF, + 0x000000000003FFFF, 0x000000000007FFFF, 0x00000000000FFFFF, + 0x00000000001FFFFF, 0x00000000003FFFFF, 0x00000000007FFFFF, + 0x0000000000FFFFFF, 0x0000000001FFFFFF, 0x0000000003FFFFFF, + 0x0000000007FFFFFF, 0x000000000FFFFFFF, 0x000000001FFFFFFF, + 0x000000003FFFFFFF, 0x000000007FFFFFFF, 0x00000000FFFFFFFF, + 0x00000001FFFFFFFF, 0x00000003FFFFFFFF, 0x00000007FFFFFFFF, + 0x0000000FFFFFFFFF, 0x0000001FFFFFFFFF, 0x0000003FFFFFFFFF, + 0x0000007FFFFFFFFF, 0x000000FFFFFFFFFF, 0x000001FFFFFFFFFF, + 0x000003FFFFFFFFFF, 0x000007FFFFFFFFFF, 0x00000FFFFFFFFFFF, + 0x00001FFFFFFFFFFF, 0x00003FFFFFFFFFFF, 0x00007FFFFFFFFFFF, + 0x0000FFFFFFFFFFFF, 0x0001FFFFFFFFFFFF, 0x0003FFFFFFFFFFFF, + 0x0007FFFFFFFFFFFF, 0x000FFFFFFFFFFFFF, 0x001FFFFFFFFFFFFF, + 0x003FFFFFFFFFFFFF, 0x007FFFFFFFFFFFFF, 0x00FFFFFFFFFFFFFF, + 0x01FFFFFFFFFFFFFF, 0x03FFFFFFFFFFFFFF, 0x07FFFFFFFFFFFFFF, + 0x0FFFFFFFFFFFFFFF, 0x1FFFFFFFFFFFFFFF, 0x3FFFFFFFFFFFFFFF, + 0x7FFFFFFFFFFFFFFF, +}; + +const uint32_t wuffs_private_impl__pixel_format__bits_per_channel[16] = { + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x0A, 0x0C, 0x10, 0x18, 0x20, 0x30, 0x40, +}; + +const char wuffs_base__note__i_o_redirect[] = "@base: I/O redirect"; +const char wuffs_base__note__end_of_data[] = "@base: end of data"; +const char wuffs_base__note__metadata_reported[] = "@base: metadata reported"; +const char wuffs_base__suspension__even_more_information[] = "$base: even more information"; +const char wuffs_base__suspension__mispositioned_read[] = "$base: mispositioned read"; +const char wuffs_base__suspension__mispositioned_write[] = "$base: mispositioned write"; +const char wuffs_base__suspension__short_read[] = "$base: short read"; +const char wuffs_base__suspension__short_workbuf[] = "$base: short workbuf"; +const char wuffs_base__suspension__short_write[] = "$base: short write"; +const char wuffs_base__error__bad_i_o_position[] = "#base: bad I/O position"; +const char wuffs_base__error__bad_argument_length_too_short[] = "#base: bad argument (length too short)"; +const char wuffs_base__error__bad_argument[] = "#base: bad argument"; +const char wuffs_base__error__bad_call_sequence[] = "#base: bad call sequence"; +const char wuffs_base__error__bad_data[] = "#base: bad data"; +const char wuffs_base__error__bad_receiver[] = "#base: bad receiver"; +const char wuffs_base__error__bad_restart[] = "#base: bad restart"; +const char wuffs_base__error__bad_sizeof_receiver[] = "#base: bad sizeof receiver"; +const char wuffs_base__error__bad_vtable[] = "#base: bad vtable"; +const char wuffs_base__error__bad_workbuf_length[] = "#base: bad workbuf length"; +const char wuffs_base__error__bad_wuffs_version[] = "#base: bad wuffs version"; +const char wuffs_base__error__cannot_return_a_suspension[] = "#base: cannot return a suspension"; +const char wuffs_base__error__disabled_by_wuffs_config_dst_pixel_format_enable_allowlist[] = "#base: disabled by WUFFS_CONFIG__DST_PIXEL_FORMAT__ENABLE_ALLOWLIST"; +const char wuffs_base__error__disabled_by_previous_error[] = "#base: disabled by previous error"; +const char wuffs_base__error__initialize_falsely_claimed_already_zeroed[] = "#base: initialize falsely claimed already zeroed"; +const char wuffs_base__error__initialize_not_called[] = "#base: initialize not called"; +const char wuffs_base__error__insufficient_history[] = "#base: insufficient history"; +const char wuffs_base__error__interleaved_coroutine_calls[] = "#base: interleaved coroutine calls"; +const char wuffs_base__error__no_more_information[] = "#base: no more information"; +const char wuffs_base__error__not_enough_data[] = "#base: not enough data"; +const char wuffs_base__error__out_of_bounds[] = "#base: out of bounds"; +const char wuffs_base__error__unsupported_image_dimension[] = "#base: unsupported image dimension"; +const char wuffs_base__error__unsupported_method[] = "#base: unsupported method"; +const char wuffs_base__error__unsupported_option[] = "#base: unsupported option"; +const char wuffs_base__error__unsupported_pixel_swizzler_option[] = "#base: unsupported pixel swizzler option"; +const char wuffs_base__error__too_much_data[] = "#base: too much data"; + +const char wuffs_base__hasher_u32__vtable_name[] = "{vtable}wuffs_base__hasher_u32"; +const char wuffs_base__hasher_u64__vtable_name[] = "{vtable}wuffs_base__hasher_u64"; +const char wuffs_base__hasher_bitvec256__vtable_name[] = "{vtable}wuffs_base__hasher_bitvec256"; +const char wuffs_base__image_decoder__vtable_name[] = "{vtable}wuffs_base__image_decoder"; +const char wuffs_base__io_transformer__vtable_name[] = "{vtable}wuffs_base__io_transformer"; +const char wuffs_base__token_decoder__vtable_name[] = "{vtable}wuffs_base__token_decoder"; + +#endif // !defined(WUFFS_CONFIG__MODULES) || + // defined(WUFFS_CONFIG__MODULE__BASE) || + // defined(WUFFS_CONFIG__MODULE__BASE__CORE) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ + defined(WUFFS_CONFIG__MODULE__BASE__INTERFACES) + +// ---------------- Interface Definitions. + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_base__hasher_u32__checksum_u32( + const wuffs_base__hasher_u32* self) { + if (!self) { return 0; - } else if (h->decimal_point > 18) { - return UINT64_MAX; } - - uint32_t dp = (uint32_t)(h->decimal_point); - uint64_t n = 0; - uint32_t i = 0; - for (; i < dp; i++) { - n = (10 * n) + ((i < h->num_digits) ? h->digits[i] : 0); + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - bool round_up = false; - if (dp < h->num_digits) { - round_up = h->digits[dp] >= 5; - if ((h->digits[dp] == 5) && (dp + 1 == h->num_digits)) { - // We are exactly halfway. If we're truncated, round up, otherwise round - // to even. - round_up = h->truncated || // - ((dp > 0) && (1 & h->digits[dp - 1])); + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_u32__vtable_name) { + const wuffs_base__hasher_u32__func_ptrs* func_ptrs = + (const wuffs_base__hasher_u32__func_ptrs*)(v->function_pointers); + return (*func_ptrs->checksum_u32)(self); + } else if (v->vtable_name == NULL) { + break; } - } - if (round_up) { - n++; + v++; } - return n; + return 0; } -// wuffs_private_impl__high_prec_dec__small_xshift shifts h's number (where 'x' -// is 'l' or 'r' for left or right) by a small shift value. -// -// Preconditions: -// - h is non-NULL. -// - h->decimal_point is "not extreme". -// - shift is non-zero. -// - shift is "a small shift". -// -// "Not extreme" means within ±WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE. -// -// "A small shift" means not more than -// WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL. -// -// wuffs_private_impl__high_prec_dec__rounded_integer and -// wuffs_private_impl__high_prec_dec__lshift_num_new_digits have the same -// preconditions. -// -// wuffs_private_impl__high_prec_dec__lshift keeps the first two preconditions -// but not the last two. Its shift argument is signed and does not need to be -// "small": zero is a no-op, positive means left shift and negative means right -// shift. - -static void // -wuffs_private_impl__high_prec_dec__small_lshift( - wuffs_private_impl__high_prec_dec* h, - uint32_t shift) { - if (h->num_digits == 0) { - return; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_base__hasher_u32__get_quirk( + const wuffs_base__hasher_u32* self, + uint32_t a_key) { + if (!self) { + return 0; } - uint32_t num_new_digits = - wuffs_private_impl__high_prec_dec__lshift_num_new_digits(h, shift); - uint32_t rx = h->num_digits - 1; // Read index. - uint32_t wx = h->num_digits - 1 + num_new_digits; // Write index. - uint64_t n = 0; - - // Repeat: pick up a digit, put down a digit, right to left. - while (((int32_t)rx) >= 0) { - n += ((uint64_t)(h->digits[rx])) << shift; - uint64_t quo = n / 10; - uint64_t rem = n - (10 * quo); - if (wx < WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) { - h->digits[wx] = (uint8_t)rem; - } else if (rem > 0) { - h->truncated = true; - } - n = quo; - wx--; - rx--; + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - // Put down leading digits, right to left. - while (n > 0) { - uint64_t quo = n / 10; - uint64_t rem = n - (10 * quo); - if (wx < WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) { - h->digits[wx] = (uint8_t)rem; - } else if (rem > 0) { - h->truncated = true; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_u32__vtable_name) { + const wuffs_base__hasher_u32__func_ptrs* func_ptrs = + (const wuffs_base__hasher_u32__func_ptrs*)(v->function_pointers); + return (*func_ptrs->get_quirk)(self, a_key); + } else if (v->vtable_name == NULL) { + break; } - n = quo; - wx--; + v++; } - // Finish. - h->num_digits += num_new_digits; - if (h->num_digits > WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) { - h->num_digits = WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION; - } - h->decimal_point += (int32_t)num_new_digits; - wuffs_private_impl__high_prec_dec__trim(h); + return 0; } -static void // -wuffs_private_impl__high_prec_dec__small_rshift( - wuffs_private_impl__high_prec_dec* h, - uint32_t shift) { - uint32_t rx = 0; // Read index. - uint32_t wx = 0; // Write index. - uint64_t n = 0; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__hasher_u32__set_quirk( + wuffs_base__hasher_u32* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } - // Pick up enough leading digits to cover the first shift. - while ((n >> shift) == 0) { - if (rx < h->num_digits) { - // Read a digit. - n = (10 * n) + h->digits[rx++]; - } else if (n == 0) { - // h's number used to be zero and remains zero. - return; - } else { - // Read sufficient implicit trailing zeroes. - while ((n >> shift) == 0) { - n = 10 * n; - rx++; - } + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_u32__vtable_name) { + const wuffs_base__hasher_u32__func_ptrs* func_ptrs = + (const wuffs_base__hasher_u32__func_ptrs*)(v->function_pointers); + return (*func_ptrs->set_quirk)(self, a_key, a_value); + } else if (v->vtable_name == NULL) { break; } - } - h->decimal_point -= ((int32_t)(rx - 1)); - if (h->decimal_point < -WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE) { - // After the shift, h's number is effectively zero. - h->num_digits = 0; - h->decimal_point = 0; - h->truncated = false; - return; + v++; } - // Repeat: pick up a digit, put down a digit, left to right. - uint64_t mask = (((uint64_t)(1)) << shift) - 1; - while (rx < h->num_digits) { - uint8_t new_digit = ((uint8_t)(n >> shift)); - n = (10 * (n & mask)) + h->digits[rx++]; - h->digits[wx++] = new_digit; + return wuffs_base__make_status(wuffs_base__error__bad_vtable); +} + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_base__hasher_u32__update( + wuffs_base__hasher_u32* self, + wuffs_base__slice_u8 a_x) { + if (!self) { + return wuffs_base__make_empty_struct(); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_empty_struct(); } - // Put down trailing digits, left to right. - while (n > 0) { - uint8_t new_digit = ((uint8_t)(n >> shift)); - n = 10 * (n & mask); - if (wx < WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) { - h->digits[wx++] = new_digit; - } else if (new_digit > 0) { - h->truncated = true; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_u32__vtable_name) { + const wuffs_base__hasher_u32__func_ptrs* func_ptrs = + (const wuffs_base__hasher_u32__func_ptrs*)(v->function_pointers); + return (*func_ptrs->update)(self, a_x); + } else if (v->vtable_name == NULL) { + break; } + v++; } - // Finish. - h->num_digits = wx; - wuffs_private_impl__high_prec_dec__trim(h); + return wuffs_base__make_empty_struct(); } -static void // -wuffs_private_impl__high_prec_dec__lshift(wuffs_private_impl__high_prec_dec* h, - int32_t shift) { - if (shift > 0) { - while (shift > +WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL) { - wuffs_private_impl__high_prec_dec__small_lshift( - h, WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL); - shift -= WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL; - } - wuffs_private_impl__high_prec_dec__small_lshift(h, ((uint32_t)(+shift))); - } else if (shift < 0) { - while (shift < -WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL) { - wuffs_private_impl__high_prec_dec__small_rshift( - h, WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL); - shift += WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_base__hasher_u32__update_u32( + wuffs_base__hasher_u32* self, + wuffs_base__slice_u8 a_x) { + if (!self) { + return 0; + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return 0; + } + + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_u32__vtable_name) { + const wuffs_base__hasher_u32__func_ptrs* func_ptrs = + (const wuffs_base__hasher_u32__func_ptrs*)(v->function_pointers); + return (*func_ptrs->update_u32)(self, a_x); + } else if (v->vtable_name == NULL) { + break; } - wuffs_private_impl__high_prec_dec__small_rshift(h, ((uint32_t)(-shift))); + v++; } + + return 0; } // -------- -// wuffs_private_impl__high_prec_dec__round_etc rounds h's number. For those -// functions that take an n argument, rounding produces at most n digits (which -// is not necessarily at most n decimal places). Negative n values are ignored, -// as well as any n greater than or equal to h's number of digits. The -// etc__round_just_enough function implicitly chooses an n to implement -// WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION. -// -// Preconditions: -// - h is non-NULL. -// - h->decimal_point is "not extreme". -// -// "Not extreme" means within ±WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE. - -static void // -wuffs_private_impl__high_prec_dec__round_down( - wuffs_private_impl__high_prec_dec* h, - int32_t n) { - if ((n < 0) || (h->num_digits <= (uint32_t)n)) { - return; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_base__hasher_u64__checksum_u64( + const wuffs_base__hasher_u64* self) { + if (!self) { + return 0; } - h->num_digits = (uint32_t)(n); - wuffs_private_impl__high_prec_dec__trim(h); -} - -static void // -wuffs_private_impl__high_prec_dec__round_up( - wuffs_private_impl__high_prec_dec* h, - int32_t n) { - if ((n < 0) || (h->num_digits <= (uint32_t)n)) { - return; + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - for (n--; n >= 0; n--) { - if (h->digits[n] < 9) { - h->digits[n]++; - h->num_digits = (uint32_t)(n + 1); - return; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_u64__vtable_name) { + const wuffs_base__hasher_u64__func_ptrs* func_ptrs = + (const wuffs_base__hasher_u64__func_ptrs*)(v->function_pointers); + return (*func_ptrs->checksum_u64)(self); + } else if (v->vtable_name == NULL) { + break; } + v++; } - // The number is all 9s. Change to a single 1 and adjust the decimal point. - h->digits[0] = 1; - h->num_digits = 1; - h->decimal_point++; + return 0; } -static void // -wuffs_private_impl__high_prec_dec__round_nearest( - wuffs_private_impl__high_prec_dec* h, - int32_t n) { - if ((n < 0) || (h->num_digits <= (uint32_t)n)) { - return; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_base__hasher_u64__get_quirk( + const wuffs_base__hasher_u64* self, + uint32_t a_key) { + if (!self) { + return 0; } - bool up = h->digits[n] >= 5; - if ((h->digits[n] == 5) && ((n + 1) == ((int32_t)(h->num_digits)))) { - up = h->truncated || // - ((n > 0) && ((h->digits[n - 1] & 1) != 0)); + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - if (up) { - wuffs_private_impl__high_prec_dec__round_up(h, n); - } else { - wuffs_private_impl__high_prec_dec__round_down(h, n); + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_u64__vtable_name) { + const wuffs_base__hasher_u64__func_ptrs* func_ptrs = + (const wuffs_base__hasher_u64__func_ptrs*)(v->function_pointers); + return (*func_ptrs->get_quirk)(self, a_key); + } else if (v->vtable_name == NULL) { + break; + } + v++; } + + return 0; } -static void // -wuffs_private_impl__high_prec_dec__round_just_enough( - wuffs_private_impl__high_prec_dec* h, - int32_t exp2, - uint64_t mantissa) { - // The magic numbers 52 and 53 in this function are because IEEE 754 double - // precision has 52 mantissa bits. - // - // Let f be the floating point number represented by exp2 and mantissa (and - // also the number in h): the number (mantissa * (2 ** (exp2 - 52))). - // - // If f is zero or a small integer, we can return early. - if ((mantissa == 0) || - ((exp2 < 53) && (h->decimal_point >= ((int32_t)(h->num_digits))))) { - return; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__hasher_u64__set_quirk( + wuffs_base__hasher_u64* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); } - - // The smallest normal f has an exp2 of -1022 and a mantissa of (1 << 52). - // Subnormal numbers have the same exp2 but a smaller mantissa. - static const int32_t min_incl_normal_exp2 = -1022; - static const uint64_t min_incl_normal_mantissa = 0x0010000000000000ul; - - // Compute lower and upper bounds such that any number between them (possibly - // inclusive) will round to f. First, the lower bound. Our number f is: - // ((mantissa + 0) * (2 ** ( exp2 - 52))) - // - // The next lowest floating point number is: - // ((mantissa - 1) * (2 ** ( exp2 - 52))) - // unless (mantissa - 1) drops the (1 << 52) bit and exp2 is not the - // min_incl_normal_exp2. Either way, call it: - // ((l_mantissa) * (2 ** (l_exp2 - 52))) - // - // The lower bound is halfway between them (noting that 52 became 53): - // (((2 * l_mantissa) + 1) * (2 ** (l_exp2 - 53))) - int32_t l_exp2 = exp2; - uint64_t l_mantissa = mantissa - 1; - if ((exp2 > min_incl_normal_exp2) && (mantissa <= min_incl_normal_mantissa)) { - l_exp2 = exp2 - 1; - l_mantissa = (2 * mantissa) - 1; + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); } - wuffs_private_impl__high_prec_dec lower; - wuffs_private_impl__high_prec_dec__assign(&lower, (2 * l_mantissa) + 1, - false); - wuffs_private_impl__high_prec_dec__lshift(&lower, l_exp2 - 53); - - // Next, the upper bound. Our number f is: - // ((mantissa + 0) * (2 ** (exp2 - 52))) - // - // The next highest floating point number is: - // ((mantissa + 1) * (2 ** (exp2 - 52))) - // - // The upper bound is halfway between them (noting that 52 became 53): - // (((2 * mantissa) + 1) * (2 ** (exp2 - 53))) - wuffs_private_impl__high_prec_dec upper; - wuffs_private_impl__high_prec_dec__assign(&upper, (2 * mantissa) + 1, false); - wuffs_private_impl__high_prec_dec__lshift(&upper, exp2 - 53); - - // The lower and upper bounds are possible outputs only if the original - // mantissa is even, so that IEEE round-to-even would round to the original - // mantissa and not its neighbors. - bool inclusive = (mantissa & 1) == 0; - - // As we walk the digits, we want to know whether rounding up would fall - // within the upper bound. This is tracked by upper_delta: - // - When -1, the digits of h and upper are the same so far. - // - When +0, we saw a difference of 1 between h and upper on a previous - // digit and subsequently only 9s for h and 0s for upper. Thus, rounding - // up may fall outside of the bound if !inclusive. - // - When +1, the difference is greater than 1 and we know that rounding up - // falls within the bound. - // - // This is a state machine with three states. The numerical value for each - // state (-1, +0 or +1) isn't important, other than their order. - int upper_delta = -1; - // We can now figure out the shortest number of digits required. Walk the - // digits until h has distinguished itself from lower or upper. - // - // The zi and zd variables are indexes and digits, for z in l (lower), h (the - // number) and u (upper). - // - // The lower, h and upper numbers may have their decimal points at different - // places. In this case, upper is the longest, so we iterate ui starting from - // 0 and iterate li and hi starting from either 0 or -1. - int32_t ui = 0; - for (;; ui++) { - // Calculate hd, the middle number's digit. - int32_t hi = ui - upper.decimal_point + h->decimal_point; - if (hi >= ((int32_t)(h->num_digits))) { + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_u64__vtable_name) { + const wuffs_base__hasher_u64__func_ptrs* func_ptrs = + (const wuffs_base__hasher_u64__func_ptrs*)(v->function_pointers); + return (*func_ptrs->set_quirk)(self, a_key, a_value); + } else if (v->vtable_name == NULL) { break; } - uint8_t hd = (((uint32_t)hi) < h->num_digits) ? h->digits[hi] : 0; + v++; + } - // Calculate ld, the lower bound's digit. - int32_t li = ui - upper.decimal_point + lower.decimal_point; - uint8_t ld = (((uint32_t)li) < lower.num_digits) ? lower.digits[li] : 0; + return wuffs_base__make_status(wuffs_base__error__bad_vtable); +} - // We can round down (truncate) if lower has a different digit than h or if - // lower is inclusive and is exactly the result of rounding down (i.e. we - // have reached the final digit of lower). - bool can_round_down = - (ld != hd) || // - (inclusive && ((li + 1) == ((int32_t)(lower.num_digits)))); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_base__hasher_u64__update( + wuffs_base__hasher_u64* self, + wuffs_base__slice_u8 a_x) { + if (!self) { + return wuffs_base__make_empty_struct(); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_empty_struct(); + } - // Calculate ud, the upper bound's digit, and update upper_delta. - uint8_t ud = (((uint32_t)ui) < upper.num_digits) ? upper.digits[ui] : 0; - if (upper_delta < 0) { - if ((hd + 1) < ud) { - // For example: - // h = 12345??? - // upper = 12347??? - upper_delta = +1; - } else if (hd != ud) { - // For example: - // h = 12345??? - // upper = 12346??? - upper_delta = +0; - } - } else if (upper_delta == 0) { - if ((hd != 9) || (ud != 0)) { - // For example: - // h = 1234598? - // upper = 1234600? - upper_delta = +1; - } + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_u64__vtable_name) { + const wuffs_base__hasher_u64__func_ptrs* func_ptrs = + (const wuffs_base__hasher_u64__func_ptrs*)(v->function_pointers); + return (*func_ptrs->update)(self, a_x); + } else if (v->vtable_name == NULL) { + break; } + v++; + } - // We can round up if upper has a different digit than h and either upper - // is inclusive or upper is bigger than the result of rounding up. - bool can_round_up = - (upper_delta > 0) || // - ((upper_delta == 0) && // - (inclusive || ((ui + 1) < ((int32_t)(upper.num_digits))))); + return wuffs_base__make_empty_struct(); +} - // If we can round either way, round to nearest. If we can round only one - // way, do it. If we can't round, continue the loop. - if (can_round_down) { - if (can_round_up) { - wuffs_private_impl__high_prec_dec__round_nearest(h, hi + 1); - return; - } else { - wuffs_private_impl__high_prec_dec__round_down(h, hi + 1); - return; - } - } else { - if (can_round_up) { - wuffs_private_impl__high_prec_dec__round_up(h, hi + 1); - return; - } +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_base__hasher_u64__update_u64( + wuffs_base__hasher_u64* self, + wuffs_base__slice_u8 a_x) { + if (!self) { + return 0; + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return 0; + } + + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_u64__vtable_name) { + const wuffs_base__hasher_u64__func_ptrs* func_ptrs = + (const wuffs_base__hasher_u64__func_ptrs*)(v->function_pointers); + return (*func_ptrs->update_u64)(self, a_x); + } else if (v->vtable_name == NULL) { + break; } + v++; } + + return 0; } // -------- -// wuffs_private_impl__parse_number_f64_eisel_lemire produces the IEEE 754 -// double-precision value for an exact mantissa and base-10 exponent. For -// example: -// - when parsing "12345.678e+02", man is 12345678 and exp10 is -1. -// - when parsing "-12", man is 12 and exp10 is 0. Processing the leading -// minus sign is the responsibility of the caller, not this function. -// -// On success, it returns a non-negative int64_t such that the low 63 bits hold -// the 11-bit exponent and 52-bit mantissa. -// -// On failure, it returns a negative value. -// -// The algorithm is based on an original idea by Michael Eisel that was refined -// by Daniel Lemire. See -// https://lemire.me/blog/2020/03/10/fast-float-parsing-in-practice/ -// and -// https://nigeltao.github.io/blog/2020/eisel-lemire.html -// -// Preconditions: -// - man is non-zero. -// - exp10 is in the range [-307 ..= 288], the same range of the -// wuffs_private_impl__powers_of_10 array. -// -// The exp10 range (and the fact that man is in the range [1 ..= UINT64_MAX], -// approximately [1 ..= 1.85e+19]) means that (man * (10 ** exp10)) is in the -// range [1e-307 ..= 1.85e+307]. This is entirely within the range of normal -// (neither subnormal nor non-finite) f64 values: DBL_MIN and DBL_MAX are -// approximately 2.23e–308 and 1.80e+308. -static int64_t // -wuffs_private_impl__parse_number_f64_eisel_lemire(uint64_t man, int32_t exp10) { - // Look up the (possibly truncated) base-2 representation of (10 ** exp10). - // The look-up table was constructed so that it is already normalized: the - // table entry's mantissa's MSB (most significant bit) is on. - const uint64_t* po10 = &wuffs_private_impl__powers_of_10[exp10 + 307][0]; - - // Normalize the man argument. The (man != 0) precondition means that a - // non-zero bit exists. - uint32_t clz = wuffs_base__count_leading_zeroes_u64(man); - man <<= clz; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__bitvec256 +wuffs_base__hasher_bitvec256__checksum_bitvec256( + const wuffs_base__hasher_bitvec256* self) { + if (!self) { + return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); + } - // Calculate the return value's base-2 exponent. We might tweak it by ±1 - // later, but its initial value comes from a linear scaling of exp10, - // converting from power-of-10 to power-of-2, and adjusting by clz. - // - // The magic constants are: - // - 1087 = 1023 + 64. The 1023 is the f64 exponent bias. The 64 is because - // the look-up table uses 64-bit mantissas. - // - 217706 is such that the ratio 217706 / 65536 ≈ 3.321930 is close enough - // (over the practical range of exp10) to log(10) / log(2) ≈ 3.321928. - // - 65536 = 1<<16 is arbitrary but a power of 2, so division is a shift. - // - // Equality of the linearly-scaled value and the actual power-of-2, over the - // range of exp10 arguments that this function accepts, is confirmed by - // script/print-mpb-powers-of-10.go - uint64_t ret_exp2 = - ((uint64_t)(((217706 * exp10) >> 16) + 1087)) - ((uint64_t)clz); + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_bitvec256__vtable_name) { + const wuffs_base__hasher_bitvec256__func_ptrs* func_ptrs = + (const wuffs_base__hasher_bitvec256__func_ptrs*)(v->function_pointers); + return (*func_ptrs->checksum_bitvec256)(self); + } else if (v->vtable_name == NULL) { + break; + } + v++; + } - // Multiply the two mantissas. Normalization means that both mantissas are at - // least (1<<63), so the 128-bit product must be at least (1<<126). The high - // 64 bits of the product, x_hi, must therefore be at least (1<<62). - // - // As a consequence, x_hi has either 0 or 1 leading zeroes. Shifting x_hi - // right by either 9 or 10 bits (depending on x_hi's MSB) will therefore - // leave the top 10 MSBs (bits 54 ..= 63) off and the 11th MSB (bit 53) on. - wuffs_base__multiply_u64__output x = wuffs_base__multiply_u64(man, po10[1]); - uint64_t x_hi = x.hi; - uint64_t x_lo = x.lo; + return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); +} - // Before we shift right by at least 9 bits, recall that the look-up table - // entry was possibly truncated. We have so far only calculated a lower bound - // for the product (man * e), where e is (10 ** exp10). The upper bound would - // add a further (man * 1) to the 128-bit product, which overflows the lower - // 64-bit limb if ((x_lo + man) < man). - // - // If overflow occurs, that adds 1 to x_hi. Since we're about to shift right - // by at least 9 bits, that carried 1 can be ignored unless the higher 64-bit - // limb's low 9 bits are all on. - // - // For example, parsing "9999999999999999999" will take the if-true branch - // here, since: - // - x_hi = 0x4563918244F3FFFF - // - x_lo = 0x8000000000000000 - // - man = 0x8AC7230489E7FFFF - if (((x_hi & 0x1FF) == 0x1FF) && ((x_lo + man) < man)) { - // Refine our calculation of (man * e). Before, our approximation of e used - // a "low resolution" 64-bit mantissa. Now use a "high resolution" 128-bit - // mantissa. We've already calculated x = (man * bits_0_to_63_incl_of_e). - // Now calculate y = (man * bits_64_to_127_incl_of_e). - wuffs_base__multiply_u64__output y = wuffs_base__multiply_u64(man, po10[0]); - uint64_t y_hi = y.hi; - uint64_t y_lo = y.lo; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_base__hasher_bitvec256__get_quirk( + const wuffs_base__hasher_bitvec256* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } - // Merge the 128-bit x and 128-bit y, which overlap by 64 bits, to - // calculate the 192-bit product of the 64-bit man by the 128-bit e. - // As we exit this if-block, we only care about the high 128 bits - // (merged_hi and merged_lo) of that 192-bit product. - // - // For example, parsing "1.234e-45" will take the if-true branch here, - // since: - // - x_hi = 0x70B7E3696DB29FFF - // - x_lo = 0xE040000000000000 - // - y_hi = 0x33718BBEAB0E0D7A - // - y_lo = 0xA880000000000000 - uint64_t merged_hi = x_hi; - uint64_t merged_lo = x_lo + y_hi; - if (merged_lo < x_lo) { - merged_hi++; // Carry the overflow bit. + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_bitvec256__vtable_name) { + const wuffs_base__hasher_bitvec256__func_ptrs* func_ptrs = + (const wuffs_base__hasher_bitvec256__func_ptrs*)(v->function_pointers); + return (*func_ptrs->get_quirk)(self, a_key); + } else if (v->vtable_name == NULL) { + break; } + v++; + } - // The "high resolution" approximation of e is still a lower bound. Once - // again, see if the upper bound is large enough to produce a different - // result. This time, if it does, give up instead of reaching for an even - // more precise approximation to e. - // - // This three-part check is similar to the two-part check that guarded the - // if block that we're now in, but it has an extra term for the middle 64 - // bits (checking that adding 1 to merged_lo would overflow). - // - // For example, parsing "5.9604644775390625e-8" will take the if-true - // branch here, since: - // - merged_hi = 0x7FFFFFFFFFFFFFFF - // - merged_lo = 0xFFFFFFFFFFFFFFFF - // - y_lo = 0x4DB3FFC120988200 - // - man = 0xD3C21BCECCEDA100 - if (((merged_hi & 0x1FF) == 0x1FF) && ((merged_lo + 1) == 0) && - (y_lo + man < man)) { - return -1; - } + return 0; +} - // Replace the 128-bit x with merged. - x_hi = merged_hi; - x_lo = merged_lo; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__hasher_bitvec256__set_quirk( + wuffs_base__hasher_bitvec256* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); } - // As mentioned above, shifting x_hi right by either 9 or 10 bits will leave - // the top 10 MSBs (bits 54 ..= 63) off and the 11th MSB (bit 53) on. If the - // MSB (before shifting) was on, adjust ret_exp2 for the larger shift. - // - // Having bit 53 on (and higher bits off) means that ret_mantissa is a 54-bit - // number. - uint64_t msb = x_hi >> 63; - uint64_t ret_mantissa = x_hi >> (msb + 9); - ret_exp2 -= 1 ^ msb; - - // IEEE 754 rounds to-nearest with ties rounded to-even. Rounding to-even can - // be tricky. If we're half-way between two exactly representable numbers - // (x's low 73 bits are zero and the next 2 bits that matter are "01"), give - // up instead of trying to pick the winner. - // - // Technically, we could tighten the condition by changing "73" to "73 or 74, - // depending on msb", but a flat "73" is simpler. - // - // For example, parsing "1e+23" will take the if-true branch here, since: - // - x_hi = 0x54B40B1F852BDA00 - // - ret_mantissa = 0x002A5A058FC295ED - if ((x_lo == 0) && ((x_hi & 0x1FF) == 0) && ((ret_mantissa & 3) == 1)) { - return -1; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_bitvec256__vtable_name) { + const wuffs_base__hasher_bitvec256__func_ptrs* func_ptrs = + (const wuffs_base__hasher_bitvec256__func_ptrs*)(v->function_pointers); + return (*func_ptrs->set_quirk)(self, a_key, a_value); + } else if (v->vtable_name == NULL) { + break; + } + v++; } - // If we're not halfway then it's rounding to-nearest. Starting with a 54-bit - // number, carry the lowest bit (bit 0) up if it's on. Regardless of whether - // it was on or off, shifting right by one then produces a 53-bit number. If - // carrying up overflowed, shift again. - ret_mantissa += ret_mantissa & 1; - ret_mantissa >>= 1; - // This if block is equivalent to (but benchmarks slightly faster than) the - // following branchless form: - // uint64_t overflow_adjustment = ret_mantissa >> 53; - // ret_mantissa >>= overflow_adjustment; - // ret_exp2 += overflow_adjustment; - // - // For example, parsing "7.2057594037927933e+16" will take the if-true - // branch here, since: - // - x_hi = 0x7FFFFFFFFFFFFE80 - // - ret_mantissa = 0x0020000000000000 - if ((ret_mantissa >> 53) > 0) { - ret_mantissa >>= 1; - ret_exp2++; + return wuffs_base__make_status(wuffs_base__error__bad_vtable); +} + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_base__hasher_bitvec256__update( + wuffs_base__hasher_bitvec256* self, + wuffs_base__slice_u8 a_x) { + if (!self) { + return wuffs_base__make_empty_struct(); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_empty_struct(); } - // Starting with a 53-bit number, IEEE 754 double-precision normal numbers - // have an implicit mantissa bit. Mask that away and keep the low 52 bits. - ret_mantissa &= 0x000FFFFFFFFFFFFF; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_bitvec256__vtable_name) { + const wuffs_base__hasher_bitvec256__func_ptrs* func_ptrs = + (const wuffs_base__hasher_bitvec256__func_ptrs*)(v->function_pointers); + return (*func_ptrs->update)(self, a_x); + } else if (v->vtable_name == NULL) { + break; + } + v++; + } - // Pack the bits and return. - return ((int64_t)(ret_mantissa | (ret_exp2 << 52))); + return wuffs_base__make_empty_struct(); } -// -------- +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__bitvec256 +wuffs_base__hasher_bitvec256__update_bitvec256( + wuffs_base__hasher_bitvec256* self, + wuffs_base__slice_u8 a_x) { + if (!self) { + return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); + } -static wuffs_base__result_f64 // -wuffs_private_impl__parse_number_f64_special(wuffs_base__slice_u8 s, - uint32_t options) { - do { - if (options & WUFFS_BASE__PARSE_NUMBER_FXX__REJECT_INF_AND_NAN) { - goto fail; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__hasher_bitvec256__vtable_name) { + const wuffs_base__hasher_bitvec256__func_ptrs* func_ptrs = + (const wuffs_base__hasher_bitvec256__func_ptrs*)(v->function_pointers); + return (*func_ptrs->update_bitvec256)(self, a_x); + } else if (v->vtable_name == NULL) { + break; } + v++; + } - uint8_t* p = s.ptr; - uint8_t* q = s.ptr + s.len; + return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); +} - for (; (p < q) && (*p == '_'); p++) { - } - if (p >= q) { - goto fail; - } +// -------- - // Parse sign. - bool negative = false; - do { - if (*p == '+') { - p++; - } else if (*p == '-') { - negative = true; - p++; - } else { - break; - } - for (; (p < q) && (*p == '_'); p++) { - } - } while (0); - if (p >= q) { - goto fail; - } +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__image_decoder__decode_frame( + wuffs_base__image_decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } - bool nan = false; - switch (p[0]) { - case 'I': - case 'i': - if (((q - p) < 3) || // - ((p[1] != 'N') && (p[1] != 'n')) || // - ((p[2] != 'F') && (p[2] != 'f'))) { - goto fail; - } - p += 3; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->decode_frame)(self, a_dst, a_src, a_blend, a_workbuf, a_opts); + } else if (v->vtable_name == NULL) { + break; + } + v++; + } - if ((p >= q) || (*p == '_')) { - break; - } else if (((q - p) < 5) || // - ((p[0] != 'I') && (p[0] != 'i')) || // - ((p[1] != 'N') && (p[1] != 'n')) || // - ((p[2] != 'I') && (p[2] != 'i')) || // - ((p[3] != 'T') && (p[3] != 't')) || // - ((p[4] != 'Y') && (p[4] != 'y'))) { - goto fail; - } - p += 5; + return wuffs_base__make_status(wuffs_base__error__bad_vtable); +} - if ((p >= q) || (*p == '_')) { - break; - } - goto fail; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__image_decoder__decode_frame_config( + wuffs_base__image_decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } - case 'N': - case 'n': - if (((q - p) < 3) || // - ((p[1] != 'A') && (p[1] != 'a')) || // - ((p[2] != 'N') && (p[2] != 'n'))) { - goto fail; - } - p += 3; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->decode_frame_config)(self, a_dst, a_src); + } else if (v->vtable_name == NULL) { + break; + } + v++; + } - if ((p >= q) || (*p == '_')) { - nan = true; - break; - } - goto fail; + return wuffs_base__make_status(wuffs_base__error__bad_vtable); +} - default: - goto fail; - } +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__image_decoder__decode_image_config( + wuffs_base__image_decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } - // Finish. - for (; (p < q) && (*p == '_'); p++) { - } - if (p != q) { - goto fail; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->decode_image_config)(self, a_dst, a_src); + } else if (v->vtable_name == NULL) { + break; } - wuffs_base__result_f64 ret; - ret.status.repr = NULL; - ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64( - (nan ? 0x7FFFFFFFFFFFFFFF : 0x7FF0000000000000) | - (negative ? 0x8000000000000000 : 0)); - return ret; - } while (0); + v++; + } -fail: - do { - wuffs_base__result_f64 ret; - ret.status.repr = wuffs_base__error__bad_argument; - ret.value = 0; - return ret; - } while (0); + return wuffs_base__make_status(wuffs_base__error__bad_vtable); } -WUFFS_BASE__MAYBE_STATIC wuffs_base__result_f64 // -wuffs_private_impl__high_prec_dec__to_f64(wuffs_private_impl__high_prec_dec* h, - uint32_t options) { - do { - // powers converts decimal powers of 10 to binary powers of 2. For example, - // (10000 >> 13) is 1. It stops before the elements exceed 60, also known - // as WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL. - // - // This rounds down (1<<13 is a lower bound for 1e4). Adding 1 to the array - // element value rounds up (1<<14 is an upper bound for 1e4) while staying - // at or below WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL. - // - // When starting in the range [1e+1 .. 1e+2] (i.e. h->decimal_point == +2), - // powers[2] == 6 and so: - // - Right shifting by 6+0 produces the range [10/64 .. 100/64] = - // [0.156250 .. 1.56250]. The resultant h->decimal_point is +0 or +1. - // - Right shifting by 6+1 produces the range [10/128 .. 100/128] = - // [0.078125 .. 0.78125]. The resultant h->decimal_point is -1 or -0. - // - // When starting in the range [1e-3 .. 1e-2] (i.e. h->decimal_point == -2), - // powers[2] == 6 and so: - // - Left shifting by 6+0 produces the range [0.001*64 .. 0.01*64] = - // [0.064 .. 0.64]. The resultant h->decimal_point is -1 or -0. - // - Left shifting by 6+1 produces the range [0.001*128 .. 0.01*128] = - // [0.128 .. 1.28]. The resultant h->decimal_point is +0 or +1. - // - // Thus, when targeting h->decimal_point being +0 or +1, use (powers[n]+0) - // when right shifting but (powers[n]+1) when left shifting. - static const uint32_t num_powers = 19; - static const uint8_t powers[19] = { - 0, 3, 6, 9, 13, 16, 19, 23, 26, 29, // - 33, 36, 39, 43, 46, 49, 53, 56, 59, // - }; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_base__image_decoder__frame_dirty_rect( + const wuffs_base__image_decoder* self) { + if (!self) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_rect_ie_u32(); + } - // Handle zero and obvious extremes. The largest and smallest positive - // finite f64 values are approximately 1.8e+308 and 4.9e-324. - if ((h->num_digits == 0) || (h->decimal_point < -326)) { - goto zero; - } else if (h->decimal_point > 310) { - goto infinity; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->frame_dirty_rect)(self); + } else if (v->vtable_name == NULL) { + break; } + v++; + } - // Try the fast Eisel-Lemire algorithm again. Calculating the (man, exp10) - // pair from the high_prec_dec h is more correct but slower than the - // approach taken in wuffs_base__parse_number_f64. The latter is optimized - // for the common cases (e.g. assuming no underscores or a leading '+' - // sign) rather than the full set of cases allowed by the Wuffs API. - // - // When we have 19 or fewer mantissa digits, run Eisel-Lemire once (trying - // for an exact result). When we have more than 19 mantissa digits, run it - // twice to get a lower and upper bound. We still have an exact result - // (within f64's rounding margin) if both bounds are equal (and valid). - uint32_t i_max = h->num_digits; - if (i_max > 19) { - i_max = 19; - } - int32_t exp10 = h->decimal_point - ((int32_t)i_max); - if ((-307 <= exp10) && (exp10 <= 288)) { - uint64_t man = 0; - uint32_t i; - for (i = 0; i < i_max; i++) { - man = (10 * man) + h->digits[i]; - } - while (man != 0) { // The 'while' is just an 'if' that we can 'break'. - int64_t r0 = - wuffs_private_impl__parse_number_f64_eisel_lemire(man + 0, exp10); - if (r0 < 0) { - break; - } else if (h->num_digits > 19) { - int64_t r1 = - wuffs_private_impl__parse_number_f64_eisel_lemire(man + 1, exp10); - if (r1 != r0) { - break; - } - } - wuffs_base__result_f64 ret; - ret.status.repr = NULL; - ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64( - ((uint64_t)r0) | (((uint64_t)(h->negative)) << 63)); - return ret; - } - } + return wuffs_base__utility__empty_rect_ie_u32(); +} - // When Eisel-Lemire fails, fall back to Simple Decimal Conversion. See - // https://nigeltao.github.io/blog/2020/parse-number-f64-simple.html - // - // Scale by powers of 2 until we're in the range [0.1 .. 10]. Equivalently, - // that h->decimal_point is +0 or +1. - // - // First we shift right while at or above 10... - const int32_t f64_bias = -1023; - int32_t exp2 = 0; - while (h->decimal_point > 1) { - uint32_t n = (uint32_t)(+h->decimal_point); - uint32_t shift = (n < num_powers) - ? powers[n] - : WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_base__image_decoder__get_quirk( + const wuffs_base__image_decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } - wuffs_private_impl__high_prec_dec__small_rshift(h, shift); - if (h->decimal_point < -WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE) { - goto zero; - } - exp2 += (int32_t)shift; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->get_quirk)(self, a_key); + } else if (v->vtable_name == NULL) { + break; } - // ...then we shift left while below 0.1. - while (h->decimal_point < 0) { - uint32_t shift; - uint32_t n = (uint32_t)(-h->decimal_point); - shift = (n < num_powers) - // The +1 is per "when targeting h->decimal_point being +0 or - // +1... when left shifting" in the powers comment above. - ? (powers[n] + 1u) - : WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL; + v++; + } - wuffs_private_impl__high_prec_dec__small_lshift(h, shift); - if (h->decimal_point > +WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE) { - goto infinity; - } - exp2 -= (int32_t)shift; - } + return 0; +} - // To get from "in the range [0.1 .. 10]" to "in the range [1 .. 2]" (which - // will give us our exponent in base-2), the mantissa's first 3 digits will - // determine the final left shift, equal to 52 (the number of explicit f64 - // bits) plus an additional adjustment. - int man3 = (100 * h->digits[0]) + - ((h->num_digits > 1) ? (10 * h->digits[1]) : 0) + - ((h->num_digits > 2) ? h->digits[2] : 0); - int32_t additional_lshift = 0; - if (h->decimal_point == 0) { // The value is in [0.1 .. 1]. - if (man3 < 125) { - additional_lshift = +4; - } else if (man3 < 250) { - additional_lshift = +3; - } else if (man3 < 500) { - additional_lshift = +2; - } else { - additional_lshift = +1; - } - } else { // The value is in [1 .. 10]. - if (man3 < 200) { - additional_lshift = -0; - } else if (man3 < 400) { - additional_lshift = -1; - } else if (man3 < 800) { - additional_lshift = -2; - } else { - additional_lshift = -3; - } - } - exp2 -= additional_lshift; - uint32_t final_lshift = (uint32_t)(52 + additional_lshift); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_base__image_decoder__num_animation_loops( + const wuffs_base__image_decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } - // The minimum normal exponent is (f64_bias + 1). - while ((f64_bias + 1) > exp2) { - uint32_t n = (uint32_t)((f64_bias + 1) - exp2); - if (n > WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL) { - n = WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL; - } - wuffs_private_impl__high_prec_dec__small_rshift(h, n); - exp2 += (int32_t)n; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->num_animation_loops)(self); + } else if (v->vtable_name == NULL) { + break; } + v++; + } - // Check for overflow. - if ((exp2 - f64_bias) >= 0x07FF) { // (1 << 11) - 1. - goto infinity; - } + return 0; +} - // Extract 53 bits for the mantissa (in base-2). - wuffs_private_impl__high_prec_dec__small_lshift(h, final_lshift); - uint64_t man2 = wuffs_private_impl__high_prec_dec__rounded_integer(h); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_base__image_decoder__num_decoded_frame_configs( + const wuffs_base__image_decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } - // Rounding might have added one bit. If so, shift and re-check overflow. - if ((man2 >> 53) != 0) { - man2 >>= 1; - exp2++; - if ((exp2 - f64_bias) >= 0x07FF) { // (1 << 11) - 1. - goto infinity; - } + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->num_decoded_frame_configs)(self); + } else if (v->vtable_name == NULL) { + break; } + v++; + } - // Handle subnormal numbers. - if ((man2 >> 52) == 0) { - exp2 = f64_bias; - } + return 0; +} - // Pack the bits and return. - uint64_t exp2_bits = - (uint64_t)((exp2 - f64_bias) & 0x07FF); // (1 << 11) - 1. - uint64_t bits = (man2 & 0x000FFFFFFFFFFFFF) | // (1 << 52) - 1. - (exp2_bits << 52) | // - (h->negative ? 0x8000000000000000 : 0); // (1 << 63). +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_base__image_decoder__num_decoded_frames( + const wuffs_base__image_decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } - wuffs_base__result_f64 ret; - ret.status.repr = NULL; - ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64(bits); - return ret; - } while (0); + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->num_decoded_frames)(self); + } else if (v->vtable_name == NULL) { + break; + } + v++; + } -zero: - do { - uint64_t bits = h->negative ? 0x8000000000000000 : 0; + return 0; +} - wuffs_base__result_f64 ret; - ret.status.repr = NULL; - ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64(bits); - return ret; - } while (0); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__image_decoder__restart_frame( + wuffs_base__image_decoder* self, + uint64_t a_index, + uint64_t a_io_position) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } -infinity: - do { - if (options & WUFFS_BASE__PARSE_NUMBER_FXX__REJECT_INF_AND_NAN) { - wuffs_base__result_f64 ret; - ret.status.repr = wuffs_base__error__bad_argument; - ret.value = 0; - return ret; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->restart_frame)(self, a_index, a_io_position); + } else if (v->vtable_name == NULL) { + break; } + v++; + } - uint64_t bits = h->negative ? 0xFFF0000000000000 : 0x7FF0000000000000; + return wuffs_base__make_status(wuffs_base__error__bad_vtable); +} - wuffs_base__result_f64 ret; - ret.status.repr = NULL; - ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64(bits); - return ret; - } while (0); -} - -static inline bool // -wuffs_private_impl__is_decimal_digit(uint8_t c) { - return ('0' <= c) && (c <= '9'); -} - -WUFFS_BASE__MAYBE_STATIC wuffs_base__result_f64 // -wuffs_base__parse_number_f64(wuffs_base__slice_u8 s, uint32_t options) { - // In practice, almost all "dd.ddddE±xxx" numbers can be represented - // losslessly by a uint64_t mantissa "dddddd" and an int32_t base-10 - // exponent, adjusting "xxx" for the position (if present) of the decimal - // separator '.' or ','. - // - // This (u64 man, i32 exp10) data structure is superficially similar to the - // "Do It Yourself Floating Point" type from Loitsch (†), but the exponent - // here is base-10, not base-2. - // - // If s's number fits in a (man, exp10), parse that pair with the - // Eisel-Lemire algorithm. If not, or if Eisel-Lemire fails, parsing s with - // the fallback algorithm is slower but comprehensive. - // - // † "Printing Floating-Point Numbers Quickly and Accurately with Integers" - // (https://www.cs.tufts.edu/~nr/cs257/archive/florian-loitsch/printf.pdf). - // Florian Loitsch is also the primary contributor to - // https://github.com/google/double-conversion - do { - // Calculating that (man, exp10) pair needs to stay within s's bounds. - // Provided that s isn't extremely long, work on a NUL-terminated copy of - // s's contents. The NUL byte isn't a valid part of "±dd.ddddE±xxx". - // - // As the pointer p walks the contents, it's faster to repeatedly check "is - // *p a valid digit" than "is p within bounds and *p a valid digit". - if (s.len >= 256) { - goto fallback; - } - uint8_t z[256]; - memcpy(&z[0], s.ptr, s.len); - z[s.len] = 0; - const uint8_t* p = &z[0]; - - // Look for a leading minus sign. Technically, we could also look for an - // optional plus sign, but the "script/process-json-numbers.c with -p" - // benchmark is noticably slower if we do. It's optional and, in practice, - // usually absent. Let the fallback catch it. - bool negative = (*p == '-'); - if (negative) { - p++; - } - - // After walking "dd.dddd", comparing p later with p now will produce the - // number of "d"s and "."s. - const uint8_t* const start_of_digits_ptr = p; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__image_decoder__set_quirk( + wuffs_base__image_decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } - // Walk the "d"s before a '.', 'E', NUL byte, etc. If it starts with '0', - // it must be a single '0'. If it starts with a non-zero decimal digit, it - // can be a sequence of decimal digits. - // - // Update the man variable during the walk. It's OK if man overflows now. - // We'll detect that later. - uint64_t man; - if (*p == '0') { - man = 0; - p++; - if (wuffs_private_impl__is_decimal_digit(*p)) { - goto fallback; - } - } else if (wuffs_private_impl__is_decimal_digit(*p)) { - man = ((uint8_t)(*p - '0')); - p++; - for (; wuffs_private_impl__is_decimal_digit(*p); p++) { - man = (10 * man) + ((uint8_t)(*p - '0')); - } - } else { - goto fallback; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->set_quirk)(self, a_key, a_value); + } else if (v->vtable_name == NULL) { + break; } + v++; + } - // Walk the "d"s after the optional decimal separator ('.' or ','), - // updating the man and exp10 variables. - int32_t exp10 = 0; - if (*p == - ((options & WUFFS_BASE__PARSE_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) - ? ',' - : '.')) { - p++; - const uint8_t* first_after_separator_ptr = p; - if (!wuffs_private_impl__is_decimal_digit(*p)) { - goto fallback; - } - man = (10 * man) + ((uint8_t)(*p - '0')); - p++; - for (; wuffs_private_impl__is_decimal_digit(*p); p++) { - man = (10 * man) + ((uint8_t)(*p - '0')); - } - exp10 = ((int32_t)(first_after_separator_ptr - p)); - } + return wuffs_base__make_status(wuffs_base__error__bad_vtable); +} - // Count the number of digits: - // - for an input of "314159", digit_count is 6. - // - for an input of "3.14159", digit_count is 7. - // - // This is off-by-one if there is a decimal separator. That's OK for now. - // We'll correct for that later. The "script/process-json-numbers.c with - // -p" benchmark is noticably slower if we try to correct for that now. - uint32_t digit_count = (uint32_t)(p - start_of_digits_ptr); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_base__image_decoder__set_report_metadata( + wuffs_base__image_decoder* self, + uint32_t a_fourcc, + bool a_report) { + if (!self) { + return wuffs_base__make_empty_struct(); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_empty_struct(); + } - // Update exp10 for the optional exponent, starting with 'E' or 'e'. - if ((*p | 0x20) == 'e') { - p++; - int32_t exp_sign = +1; - if (*p == '-') { - p++; - exp_sign = -1; - } else if (*p == '+') { - p++; - } - if (!wuffs_private_impl__is_decimal_digit(*p)) { - goto fallback; - } - int32_t exp_num = ((uint8_t)(*p - '0')); - p++; - // The rest of the exp_num walking has a peculiar control flow but, once - // again, the "script/process-json-numbers.c with -p" benchmark is - // sensitive to alternative formulations. - if (wuffs_private_impl__is_decimal_digit(*p)) { - exp_num = (10 * exp_num) + ((uint8_t)(*p - '0')); - p++; - } - if (wuffs_private_impl__is_decimal_digit(*p)) { - exp_num = (10 * exp_num) + ((uint8_t)(*p - '0')); - p++; - } - while (wuffs_private_impl__is_decimal_digit(*p)) { - if (exp_num > 0x1000000) { - goto fallback; - } - exp_num = (10 * exp_num) + ((uint8_t)(*p - '0')); - p++; - } - exp10 += exp_sign * exp_num; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->set_report_metadata)(self, a_fourcc, a_report); + } else if (v->vtable_name == NULL) { + break; } + v++; + } - // The Wuffs API is that the original slice has no trailing data. It also - // allows underscores, which we don't catch here but the fallback should. - if (p != &z[s.len]) { - goto fallback; - } + return wuffs_base__make_empty_struct(); +} - // Check that the uint64_t typed man variable has not overflowed, based on - // digit_count. - // - // For reference: - // - (1 << 63) is 9223372036854775808, which has 19 decimal digits. - // - (1 << 64) is 18446744073709551616, which has 20 decimal digits. - // - 19 nines, 9999999999999999999, is 0x8AC7230489E7FFFF, which has 64 - // bits and 16 hexadecimal digits. - // - 20 nines, 99999999999999999999, is 0x56BC75E2D630FFFFF, which has 67 - // bits and 17 hexadecimal digits. - if (digit_count > 19) { - // Even if we have more than 19 pseudo-digits, it's not yet definitely an - // overflow. Recall that digit_count might be off-by-one (too large) if - // there's a decimal separator. It will also over-report the number of - // meaningful digits if the input looks something like "0.000dddExxx". - // - // We adjust by the number of leading '0's and '.'s and re-compare to 19. - // Once again, technically, we could skip ','s too, but that perturbs the - // "script/process-json-numbers.c with -p" benchmark. - const uint8_t* q = start_of_digits_ptr; - for (; (*q == '0') || (*q == '.'); q++) { - } - digit_count -= (uint32_t)(q - start_of_digits_ptr); - if (digit_count > 19) { - goto fallback; - } - } +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__image_decoder__tell_me_more( + wuffs_base__image_decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } - // The wuffs_private_impl__parse_number_f64_eisel_lemire preconditions - // include that exp10 is in the range [-307 ..= 288]. - if ((exp10 < -307) || (288 < exp10)) { - goto fallback; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->tell_me_more)(self, a_dst, a_minfo, a_src); + } else if (v->vtable_name == NULL) { + break; } + v++; + } - // If both man and (10 ** exp10) are exactly representable by a double, we - // don't need to run the Eisel-Lemire algorithm. - if ((-22 <= exp10) && (exp10 <= 22) && ((man >> 53) == 0)) { - double d = (double)man; - if (exp10 >= 0) { - d *= wuffs_private_impl__f64_powers_of_10[+exp10]; - } else { - d /= wuffs_private_impl__f64_powers_of_10[-exp10]; - } - wuffs_base__result_f64 ret; - ret.status.repr = NULL; - ret.value = negative ? -d : +d; - return ret; - } + return wuffs_base__make_status(wuffs_base__error__bad_vtable); +} - // The wuffs_private_impl__parse_number_f64_eisel_lemire preconditions - // include that man is non-zero. Parsing "0" should be caught by the "If - // both man and (10 ** exp10)" above, but "0e99" might not. - if (man == 0) { - goto fallback; - } +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_base__image_decoder__workbuf_len( + const wuffs_base__image_decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } - // Our man and exp10 are in range. Run the Eisel-Lemire algorithm. - int64_t r = wuffs_private_impl__parse_number_f64_eisel_lemire(man, exp10); - if (r < 0) { - goto fallback; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__image_decoder__vtable_name) { + const wuffs_base__image_decoder__func_ptrs* func_ptrs = + (const wuffs_base__image_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->workbuf_len)(self); + } else if (v->vtable_name == NULL) { + break; } - wuffs_base__result_f64 ret; - ret.status.repr = NULL; - ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64( - ((uint64_t)r) | (((uint64_t)negative) << 63)); - return ret; - } while (0); + v++; + } -fallback: - do { - wuffs_private_impl__high_prec_dec h; - wuffs_base__status status = - wuffs_private_impl__high_prec_dec__parse(&h, s, options); - if (status.repr) { - return wuffs_private_impl__parse_number_f64_special(s, options); - } - return wuffs_private_impl__high_prec_dec__to_f64(&h, options); - } while (0); + return wuffs_base__utility__empty_range_ii_u64(); } // -------- -static inline size_t // -wuffs_private_impl__render_inf(wuffs_base__slice_u8 dst, - bool neg, - uint32_t options) { - if (neg) { - if (dst.len < 4) { - return 0; - } - wuffs_base__poke_u32le__no_bounds_check(dst.ptr, 0x666E492D); // '-Inf'le. - return 4; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_base__io_transformer__dst_history_retain_length( + const wuffs_base__io_transformer* self) { + if (!self) { + return wuffs_base__utility__make_optional_u63(false, 0u); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__make_optional_u63(false, 0u); } - if (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN) { - if (dst.len < 4) { - return 0; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { + const wuffs_base__io_transformer__func_ptrs* func_ptrs = + (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); + return (*func_ptrs->dst_history_retain_length)(self); + } else if (v->vtable_name == NULL) { + break; } - wuffs_base__poke_u32le__no_bounds_check(dst.ptr, 0x666E492B); // '+Inf'le. - return 4; + v++; } - if (dst.len < 3) { - return 0; - } - wuffs_base__poke_u24le__no_bounds_check(dst.ptr, 0x666E49); // 'Inf'le. - return 3; + return wuffs_base__utility__make_optional_u63(false, 0u); } -static inline size_t // -wuffs_private_impl__render_nan(wuffs_base__slice_u8 dst) { - if (dst.len < 3) { +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_base__io_transformer__get_quirk( + const wuffs_base__io_transformer* self, + uint32_t a_key) { + if (!self) { return 0; } - wuffs_base__poke_u24le__no_bounds_check(dst.ptr, 0x4E614E); // 'NaN'le. - return 3; -} - -static size_t // -wuffs_private_impl__high_prec_dec__render_exponent_absent( - wuffs_base__slice_u8 dst, - wuffs_private_impl__high_prec_dec* h, - uint32_t precision, - uint32_t options) { - size_t n = (h->negative || - (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN)) - ? 1 - : 0; - if (h->decimal_point <= 0) { - n += 1; - } else { - n += (size_t)(h->decimal_point); - } - if (precision > 0) { - n += precision + 1; // +1 for the '.'. + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - // Don't modify dst if the formatted number won't fit. - if (n > dst.len) { - return 0; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { + const wuffs_base__io_transformer__func_ptrs* func_ptrs = + (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); + return (*func_ptrs->get_quirk)(self, a_key); + } else if (v->vtable_name == NULL) { + break; + } + v++; } - // Align-left or align-right. - uint8_t* ptr = (options & WUFFS_BASE__RENDER_NUMBER_XXX__ALIGN_RIGHT) - ? &dst.ptr[dst.len - n] - : &dst.ptr[0]; + return 0; +} - // Leading "±". - if (h->negative) { - *ptr++ = '-'; - } else if (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN) { - *ptr++ = '+'; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__io_transformer__set_quirk( + wuffs_base__io_transformer* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); } - - // Integral digits. - if (h->decimal_point <= 0) { - *ptr++ = '0'; - } else { - uint32_t m = - wuffs_base__u32__min(h->num_digits, (uint32_t)(h->decimal_point)); - uint32_t i = 0; - for (; i < m; i++) { - *ptr++ = (uint8_t)('0' | h->digits[i]); - } - for (; i < (uint32_t)(h->decimal_point); i++) { - *ptr++ = '0'; - } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); } - // Separator and then fractional digits. - if (precision > 0) { - *ptr++ = - (options & WUFFS_BASE__RENDER_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) - ? ',' - : '.'; - uint32_t i = 0; - for (; i < precision; i++) { - uint32_t j = ((uint32_t)(h->decimal_point)) + i; - *ptr++ = (uint8_t)('0' | ((j < h->num_digits) ? h->digits[j] : 0)); + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { + const wuffs_base__io_transformer__func_ptrs* func_ptrs = + (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); + return (*func_ptrs->set_quirk)(self, a_key, a_value); + } else if (v->vtable_name == NULL) { + break; } + v++; } - return n; + return wuffs_base__make_status(wuffs_base__error__bad_vtable); } -static size_t // -wuffs_private_impl__high_prec_dec__render_exponent_present( - wuffs_base__slice_u8 dst, - wuffs_private_impl__high_prec_dec* h, - uint32_t precision, - uint32_t options) { - int32_t exp = 0; - if (h->num_digits > 0) { - exp = h->decimal_point - 1; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__io_transformer__transform_io( + wuffs_base__io_transformer* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); } - bool negative_exp = exp < 0; - if (negative_exp) { - exp = -exp; + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); } - size_t n = (h->negative || - (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN)) - ? 4 - : 3; // Mininum 3 bytes: first digit and then "e±". - if (precision > 0) { - n += precision + 1; // +1 for the '.'. - } - n += (exp < 100) ? 2 : 3; - - // Don't modify dst if the formatted number won't fit. - if (n > dst.len) { - return 0; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { + const wuffs_base__io_transformer__func_ptrs* func_ptrs = + (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); + return (*func_ptrs->transform_io)(self, a_dst, a_src, a_workbuf); + } else if (v->vtable_name == NULL) { + break; + } + v++; } - // Align-left or align-right. - uint8_t* ptr = (options & WUFFS_BASE__RENDER_NUMBER_XXX__ALIGN_RIGHT) - ? &dst.ptr[dst.len - n] - : &dst.ptr[0]; + return wuffs_base__make_status(wuffs_base__error__bad_vtable); +} - // Leading "±". - if (h->negative) { - *ptr++ = '-'; - } else if (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN) { - *ptr++ = '+'; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_base__io_transformer__workbuf_len( + const wuffs_base__io_transformer* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); } - - // Integral digit. - if (h->num_digits > 0) { - *ptr++ = (uint8_t)('0' | h->digits[0]); - } else { - *ptr++ = '0'; + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); } - // Separator and then fractional digits. - if (precision > 0) { - *ptr++ = - (options & WUFFS_BASE__RENDER_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) - ? ',' - : '.'; - uint32_t i = 1; - uint32_t j = wuffs_base__u32__min(h->num_digits, precision + 1); - for (; i < j; i++) { - *ptr++ = (uint8_t)('0' | h->digits[i]); - } - for (; i <= precision; i++) { - *ptr++ = '0'; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__io_transformer__vtable_name) { + const wuffs_base__io_transformer__func_ptrs* func_ptrs = + (const wuffs_base__io_transformer__func_ptrs*)(v->function_pointers); + return (*func_ptrs->workbuf_len)(self); + } else if (v->vtable_name == NULL) { + break; } + v++; } - // Exponent: "e±" and then 2 or 3 digits. - *ptr++ = 'e'; - *ptr++ = negative_exp ? '-' : '+'; - if (exp < 10) { - *ptr++ = '0'; - *ptr++ = (uint8_t)('0' | exp); - } else if (exp < 100) { - *ptr++ = (uint8_t)('0' | (exp / 10)); - *ptr++ = (uint8_t)('0' | (exp % 10)); - } else { - int32_t e = exp / 100; - exp -= e * 100; - *ptr++ = (uint8_t)('0' | e); - *ptr++ = (uint8_t)('0' | (exp / 10)); - *ptr++ = (uint8_t)('0' | (exp % 10)); - } - - return n; + return wuffs_base__utility__empty_range_ii_u64(); } -WUFFS_BASE__MAYBE_STATIC size_t // -wuffs_base__render_number_f64(wuffs_base__slice_u8 dst, - double x, - uint32_t precision, - uint32_t options) { - // Decompose x (64 bits) into negativity (1 bit), base-2 exponent (11 bits - // with a -1023 bias) and mantissa (52 bits). - uint64_t bits = wuffs_base__ieee_754_bit_representation__from_f64_to_u64(x); - bool neg = (bits >> 63) != 0; - int32_t exp2 = ((int32_t)(bits >> 52)) & 0x7FF; - uint64_t man = bits & 0x000FFFFFFFFFFFFFul; +// -------- - // Apply the exponent bias and set the implicit top bit of the mantissa, - // unless x is subnormal. Also take care of Inf and NaN. - if (exp2 == 0x7FF) { - if (man != 0) { - return wuffs_private_impl__render_nan(dst); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__token_decoder__decode_tokens( + wuffs_base__token_decoder* self, + wuffs_base__token_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__token_decoder__vtable_name) { + const wuffs_base__token_decoder__func_ptrs* func_ptrs = + (const wuffs_base__token_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->decode_tokens)(self, a_dst, a_src, a_workbuf); + } else if (v->vtable_name == NULL) { + break; } - return wuffs_private_impl__render_inf(dst, neg, options); - } else if (exp2 == 0) { - exp2 = -1022; - } else { - exp2 -= 1023; - man |= 0x0010000000000000ul; + v++; } - // Ensure that precision isn't too large. - if (precision > 4095) { - precision = 4095; + return wuffs_base__make_status(wuffs_base__error__bad_vtable); +} + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_base__token_decoder__get_quirk( + const wuffs_base__token_decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - // Convert from the (neg, exp2, man) tuple to an HPD. - wuffs_private_impl__high_prec_dec h; - wuffs_private_impl__high_prec_dec__assign(&h, man, neg); - if (h.num_digits > 0) { - wuffs_private_impl__high_prec_dec__lshift(&h, - exp2 - 52); // 52 mantissa bits. + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__token_decoder__vtable_name) { + const wuffs_base__token_decoder__func_ptrs* func_ptrs = + (const wuffs_base__token_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->get_quirk)(self, a_key); + } else if (v->vtable_name == NULL) { + break; + } + v++; } - // Handle the "%e" and "%f" formats. - switch (options & (WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_ABSENT | - WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_PRESENT)) { - case WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_ABSENT: // The "%"f" format. - if (options & WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION) { - wuffs_private_impl__high_prec_dec__round_just_enough(&h, exp2, man); - int32_t p = ((int32_t)(h.num_digits)) - h.decimal_point; - precision = ((uint32_t)(wuffs_base__i32__max(0, p))); - } else { - wuffs_private_impl__high_prec_dec__round_nearest( - &h, ((int32_t)precision) + h.decimal_point); - } - return wuffs_private_impl__high_prec_dec__render_exponent_absent( - dst, &h, precision, options); + return 0; +} - case WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_PRESENT: // The "%e" format. - if (options & WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION) { - wuffs_private_impl__high_prec_dec__round_just_enough(&h, exp2, man); - precision = (h.num_digits > 0) ? (h.num_digits - 1) : 0; - } else { - wuffs_private_impl__high_prec_dec__round_nearest( - &h, ((int32_t)precision) + 1); - } - return wuffs_private_impl__high_prec_dec__render_exponent_present( - dst, &h, precision, options); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_base__token_decoder__set_quirk( + wuffs_base__token_decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); } - // We have the "%g" format and so precision means the number of significant - // digits, not the number of digits after the decimal separator. Perform - // rounding and determine whether to use "%e" or "%f". - int32_t e_threshold = 0; - if (options & WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION) { - wuffs_private_impl__high_prec_dec__round_just_enough(&h, exp2, man); - precision = h.num_digits; - e_threshold = 6; - } else { - if (precision == 0) { - precision = 1; - } - wuffs_private_impl__high_prec_dec__round_nearest(&h, ((int32_t)precision)); - e_threshold = ((int32_t)precision); - int32_t nd = ((int32_t)(h.num_digits)); - if ((e_threshold > nd) && (nd >= h.decimal_point)) { - e_threshold = nd; + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__token_decoder__vtable_name) { + const wuffs_base__token_decoder__func_ptrs* func_ptrs = + (const wuffs_base__token_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->set_quirk)(self, a_key, a_value); + } else if (v->vtable_name == NULL) { + break; } + v++; } - // Use the "%e" format if the exponent is large. - int32_t e = h.decimal_point - 1; - if ((e < -4) || (e_threshold <= e)) { - uint32_t p = wuffs_base__u32__min(precision, h.num_digits); - return wuffs_private_impl__high_prec_dec__render_exponent_present( - dst, &h, (p > 0) ? (p - 1) : 0, options); + return wuffs_base__make_status(wuffs_base__error__bad_vtable); +} + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_base__token_decoder__workbuf_len( + const wuffs_base__token_decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); } - // Use the "%f" format otherwise. - int32_t p = ((int32_t)precision); - if (p > h.decimal_point) { - p = ((int32_t)(h.num_digits)); + const wuffs_base__vtable* v = &self->private_impl.first_vtable; + int i; + for (i = 0; i < 63; i++) { + if (v->vtable_name == wuffs_base__token_decoder__vtable_name) { + const wuffs_base__token_decoder__func_ptrs* func_ptrs = + (const wuffs_base__token_decoder__func_ptrs*)(v->function_pointers); + return (*func_ptrs->workbuf_len)(self); + } else if (v->vtable_name == NULL) { + break; + } + v++; } - precision = ((uint32_t)(wuffs_base__i32__max(0, p - h.decimal_point))); - return wuffs_private_impl__high_prec_dec__render_exponent_absent( - dst, &h, precision, options); + + return wuffs_base__utility__empty_range_ii_u64(); } #endif // !defined(WUFFS_CONFIG__MODULES) || // defined(WUFFS_CONFIG__MODULE__BASE) || - // defined(WUFFS_CONFIG__MODULE__BASE__FLOATCONV) + // defined(WUFFS_CONFIG__MODULE__BASE__INTERFACES) #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ - defined(WUFFS_CONFIG__MODULE__BASE__INTCONV) - -// ---------------- Integer - -// wuffs_base__parse_number__foo_digits entries are 0x00 for invalid digits, -// and (0x80 | v) for valid digits, where v is the 4 bit value. - -static const uint8_t wuffs_base__parse_number__decimal_digits[256] = { - // 0 1 2 3 4 5 6 7 - // 8 9 A B C D E F - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x00 ..= 0x07. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x08 ..= 0x0F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x10 ..= 0x17. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x18 ..= 0x1F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x20 ..= 0x27. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x28 ..= 0x2F. - 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, // 0x30 ..= 0x37. '0'-'7'. - 0x88, 0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x38 ..= 0x3F. '8'-'9'. - - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x40 ..= 0x47. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x48 ..= 0x4F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x50 ..= 0x57. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x58 ..= 0x5F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x60 ..= 0x67. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x68 ..= 0x6F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x70 ..= 0x77. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x78 ..= 0x7F. - - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x80 ..= 0x87. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x88 ..= 0x8F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x90 ..= 0x97. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x98 ..= 0x9F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xA0 ..= 0xA7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xA8 ..= 0xAF. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xB0 ..= 0xB7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xB8 ..= 0xBF. - - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xC0 ..= 0xC7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xC8 ..= 0xCF. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xD0 ..= 0xD7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xD8 ..= 0xDF. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xE0 ..= 0xE7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xE8 ..= 0xEF. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xF0 ..= 0xF7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xF8 ..= 0xFF. - // 0 1 2 3 4 5 6 7 - // 8 9 A B C D E F -}; - -static const uint8_t wuffs_base__parse_number__hexadecimal_digits[256] = { - // 0 1 2 3 4 5 6 7 - // 8 9 A B C D E F - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x00 ..= 0x07. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x08 ..= 0x0F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x10 ..= 0x17. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x18 ..= 0x1F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x20 ..= 0x27. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x28 ..= 0x2F. - 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, // 0x30 ..= 0x37. '0'-'7'. - 0x88, 0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x38 ..= 0x3F. '8'-'9'. + defined(WUFFS_CONFIG__MODULE__BASE__FLOATCONV) - 0x00, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, 0x00, // 0x40 ..= 0x47. 'A'-'F'. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x48 ..= 0x4F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x50 ..= 0x57. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x58 ..= 0x5F. - 0x00, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, 0x00, // 0x60 ..= 0x67. 'a'-'f'. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x68 ..= 0x6F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x70 ..= 0x77. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x78 ..= 0x7F. +// ---------------- IEEE 754 Floating Point - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x80 ..= 0x87. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x88 ..= 0x8F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x90 ..= 0x97. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x98 ..= 0x9F. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xA0 ..= 0xA7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xA8 ..= 0xAF. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xB0 ..= 0xB7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xB8 ..= 0xBF. +// The etc__hpd_left_shift and etc__powers_of_5 tables were printed by +// script/print-hpd-left-shift.go. That script has an optional -comments flag, +// whose output is not copied here, which prints further detail. +// +// These tables are used in +// wuffs_private_impl__high_prec_dec__lshift_num_new_digits. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xC0 ..= 0xC7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xC8 ..= 0xCF. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xD0 ..= 0xD7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xD8 ..= 0xDF. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xE0 ..= 0xE7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xE8 ..= 0xEF. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xF0 ..= 0xF7. - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xF8 ..= 0xFF. - // 0 1 2 3 4 5 6 7 - // 8 9 A B C D E F +// wuffs_private_impl__hpd_left_shift[i] encodes the number of new digits +// created after multiplying a positive integer by (1 << i): the additional +// length in the decimal representation. For example, shifting "234" by 3 +// (equivalent to multiplying by 8) will produce "1872". Going from a 3-length +// string to a 4-length string means that 1 new digit was added (and existing +// digits may have changed). +// +// Shifting by i can add either N or N-1 new digits, depending on whether the +// original positive integer compares >= or < to the i'th power of 5 (as 10 +// equals 2 * 5). Comparison is lexicographic, not numerical. +// +// For example, shifting by 4 (i.e. multiplying by 16) can add 1 or 2 new +// digits, depending on a lexicographic comparison to (5 ** 4), i.e. "625": +// - ("1" << 4) is "16", which adds 1 new digit. +// - ("5678" << 4) is "90848", which adds 1 new digit. +// - ("624" << 4) is "9984", which adds 1 new digit. +// - ("62498" << 4) is "999968", which adds 1 new digit. +// - ("625" << 4) is "10000", which adds 2 new digits. +// - ("625001" << 4) is "10000016", which adds 2 new digits. +// - ("7008" << 4) is "112128", which adds 2 new digits. +// - ("99" << 4) is "1584", which adds 2 new digits. +// +// Thus, when i is 4, N is 2 and (5 ** i) is "625". This etc__hpd_left_shift +// array encodes this as: +// - etc__hpd_left_shift[4] is 0x1006 = (2 << 11) | 0x0006. +// - etc__hpd_left_shift[5] is 0x1009 = (? << 11) | 0x0009. +// where the ? isn't relevant for i == 4. +// +// The high 5 bits of etc__hpd_left_shift[i] is N, the higher of the two +// possible number of new digits. The low 11 bits are an offset into the +// etc__powers_of_5 array (of length 0x051C, so offsets fit in 11 bits). When i +// is 4, its offset and the next one is 6 and 9, and etc__powers_of_5[6 .. 9] +// is the string "\x06\x02\x05", so the relevant power of 5 is "625". +// +// Thanks to Ken Thompson for the original idea. +static const uint16_t wuffs_private_impl__hpd_left_shift[65] = { + 0x0000, 0x0800, 0x0801, 0x0803, 0x1006, 0x1009, 0x100D, 0x1812, 0x1817, + 0x181D, 0x2024, 0x202B, 0x2033, 0x203C, 0x2846, 0x2850, 0x285B, 0x3067, + 0x3073, 0x3080, 0x388E, 0x389C, 0x38AB, 0x38BB, 0x40CC, 0x40DD, 0x40EF, + 0x4902, 0x4915, 0x4929, 0x513E, 0x5153, 0x5169, 0x5180, 0x5998, 0x59B0, + 0x59C9, 0x61E3, 0x61FD, 0x6218, 0x6A34, 0x6A50, 0x6A6D, 0x6A8B, 0x72AA, + 0x72C9, 0x72E9, 0x7B0A, 0x7B2B, 0x7B4D, 0x8370, 0x8393, 0x83B7, 0x83DC, + 0x8C02, 0x8C28, 0x8C4F, 0x9477, 0x949F, 0x94C8, 0x9CF2, 0x051C, 0x051C, + 0x051C, 0x051C, }; -static const uint8_t wuffs_private_impl__encode_base16[16] = { - 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, // 0x00 ..= 0x07. - 0x38, 0x39, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, // 0x08 ..= 0x0F. +// wuffs_private_impl__powers_of_5 contains the powers of 5, concatenated +// together: "5", "25", "125", "625", "3125", etc. +static const uint8_t wuffs_private_impl__powers_of_5[0x051C] = { + 5, 2, 5, 1, 2, 5, 6, 2, 5, 3, 1, 2, 5, 1, 5, 6, 2, 5, 7, 8, 1, 2, 5, 3, 9, + 0, 6, 2, 5, 1, 9, 5, 3, 1, 2, 5, 9, 7, 6, 5, 6, 2, 5, 4, 8, 8, 2, 8, 1, 2, + 5, 2, 4, 4, 1, 4, 0, 6, 2, 5, 1, 2, 2, 0, 7, 0, 3, 1, 2, 5, 6, 1, 0, 3, 5, + 1, 5, 6, 2, 5, 3, 0, 5, 1, 7, 5, 7, 8, 1, 2, 5, 1, 5, 2, 5, 8, 7, 8, 9, 0, + 6, 2, 5, 7, 6, 2, 9, 3, 9, 4, 5, 3, 1, 2, 5, 3, 8, 1, 4, 6, 9, 7, 2, 6, 5, + 6, 2, 5, 1, 9, 0, 7, 3, 4, 8, 6, 3, 2, 8, 1, 2, 5, 9, 5, 3, 6, 7, 4, 3, 1, + 6, 4, 0, 6, 2, 5, 4, 7, 6, 8, 3, 7, 1, 5, 8, 2, 0, 3, 1, 2, 5, 2, 3, 8, 4, + 1, 8, 5, 7, 9, 1, 0, 1, 5, 6, 2, 5, 1, 1, 9, 2, 0, 9, 2, 8, 9, 5, 5, 0, 7, + 8, 1, 2, 5, 5, 9, 6, 0, 4, 6, 4, 4, 7, 7, 5, 3, 9, 0, 6, 2, 5, 2, 9, 8, 0, + 2, 3, 2, 2, 3, 8, 7, 6, 9, 5, 3, 1, 2, 5, 1, 4, 9, 0, 1, 1, 6, 1, 1, 9, 3, + 8, 4, 7, 6, 5, 6, 2, 5, 7, 4, 5, 0, 5, 8, 0, 5, 9, 6, 9, 2, 3, 8, 2, 8, 1, + 2, 5, 3, 7, 2, 5, 2, 9, 0, 2, 9, 8, 4, 6, 1, 9, 1, 4, 0, 6, 2, 5, 1, 8, 6, + 2, 6, 4, 5, 1, 4, 9, 2, 3, 0, 9, 5, 7, 0, 3, 1, 2, 5, 9, 3, 1, 3, 2, 2, 5, + 7, 4, 6, 1, 5, 4, 7, 8, 5, 1, 5, 6, 2, 5, 4, 6, 5, 6, 6, 1, 2, 8, 7, 3, 0, + 7, 7, 3, 9, 2, 5, 7, 8, 1, 2, 5, 2, 3, 2, 8, 3, 0, 6, 4, 3, 6, 5, 3, 8, 6, + 9, 6, 2, 8, 9, 0, 6, 2, 5, 1, 1, 6, 4, 1, 5, 3, 2, 1, 8, 2, 6, 9, 3, 4, 8, + 1, 4, 4, 5, 3, 1, 2, 5, 5, 8, 2, 0, 7, 6, 6, 0, 9, 1, 3, 4, 6, 7, 4, 0, 7, + 2, 2, 6, 5, 6, 2, 5, 2, 9, 1, 0, 3, 8, 3, 0, 4, 5, 6, 7, 3, 3, 7, 0, 3, 6, + 1, 3, 2, 8, 1, 2, 5, 1, 4, 5, 5, 1, 9, 1, 5, 2, 2, 8, 3, 6, 6, 8, 5, 1, 8, + 0, 6, 6, 4, 0, 6, 2, 5, 7, 2, 7, 5, 9, 5, 7, 6, 1, 4, 1, 8, 3, 4, 2, 5, 9, + 0, 3, 3, 2, 0, 3, 1, 2, 5, 3, 6, 3, 7, 9, 7, 8, 8, 0, 7, 0, 9, 1, 7, 1, 2, + 9, 5, 1, 6, 6, 0, 1, 5, 6, 2, 5, 1, 8, 1, 8, 9, 8, 9, 4, 0, 3, 5, 4, 5, 8, + 5, 6, 4, 7, 5, 8, 3, 0, 0, 7, 8, 1, 2, 5, 9, 0, 9, 4, 9, 4, 7, 0, 1, 7, 7, + 2, 9, 2, 8, 2, 3, 7, 9, 1, 5, 0, 3, 9, 0, 6, 2, 5, 4, 5, 4, 7, 4, 7, 3, 5, + 0, 8, 8, 6, 4, 6, 4, 1, 1, 8, 9, 5, 7, 5, 1, 9, 5, 3, 1, 2, 5, 2, 2, 7, 3, + 7, 3, 6, 7, 5, 4, 4, 3, 2, 3, 2, 0, 5, 9, 4, 7, 8, 7, 5, 9, 7, 6, 5, 6, 2, + 5, 1, 1, 3, 6, 8, 6, 8, 3, 7, 7, 2, 1, 6, 1, 6, 0, 2, 9, 7, 3, 9, 3, 7, 9, + 8, 8, 2, 8, 1, 2, 5, 5, 6, 8, 4, 3, 4, 1, 8, 8, 6, 0, 8, 0, 8, 0, 1, 4, 8, + 6, 9, 6, 8, 9, 9, 4, 1, 4, 0, 6, 2, 5, 2, 8, 4, 2, 1, 7, 0, 9, 4, 3, 0, 4, + 0, 4, 0, 0, 7, 4, 3, 4, 8, 4, 4, 9, 7, 0, 7, 0, 3, 1, 2, 5, 1, 4, 2, 1, 0, + 8, 5, 4, 7, 1, 5, 2, 0, 2, 0, 0, 3, 7, 1, 7, 4, 2, 2, 4, 8, 5, 3, 5, 1, 5, + 6, 2, 5, 7, 1, 0, 5, 4, 2, 7, 3, 5, 7, 6, 0, 1, 0, 0, 1, 8, 5, 8, 7, 1, 1, + 2, 4, 2, 6, 7, 5, 7, 8, 1, 2, 5, 3, 5, 5, 2, 7, 1, 3, 6, 7, 8, 8, 0, 0, 5, + 0, 0, 9, 2, 9, 3, 5, 5, 6, 2, 1, 3, 3, 7, 8, 9, 0, 6, 2, 5, 1, 7, 7, 6, 3, + 5, 6, 8, 3, 9, 4, 0, 0, 2, 5, 0, 4, 6, 4, 6, 7, 7, 8, 1, 0, 6, 6, 8, 9, 4, + 5, 3, 1, 2, 5, 8, 8, 8, 1, 7, 8, 4, 1, 9, 7, 0, 0, 1, 2, 5, 2, 3, 2, 3, 3, + 8, 9, 0, 5, 3, 3, 4, 4, 7, 2, 6, 5, 6, 2, 5, 4, 4, 4, 0, 8, 9, 2, 0, 9, 8, + 5, 0, 0, 6, 2, 6, 1, 6, 1, 6, 9, 4, 5, 2, 6, 6, 7, 2, 3, 6, 3, 2, 8, 1, 2, + 5, 2, 2, 2, 0, 4, 4, 6, 0, 4, 9, 2, 5, 0, 3, 1, 3, 0, 8, 0, 8, 4, 7, 2, 6, + 3, 3, 3, 6, 1, 8, 1, 6, 4, 0, 6, 2, 5, 1, 1, 1, 0, 2, 2, 3, 0, 2, 4, 6, 2, + 5, 1, 5, 6, 5, 4, 0, 4, 2, 3, 6, 3, 1, 6, 6, 8, 0, 9, 0, 8, 2, 0, 3, 1, 2, + 5, 5, 5, 5, 1, 1, 1, 5, 1, 2, 3, 1, 2, 5, 7, 8, 2, 7, 0, 2, 1, 1, 8, 1, 5, + 8, 3, 4, 0, 4, 5, 4, 1, 0, 1, 5, 6, 2, 5, 2, 7, 7, 5, 5, 5, 7, 5, 6, 1, 5, + 6, 2, 8, 9, 1, 3, 5, 1, 0, 5, 9, 0, 7, 9, 1, 7, 0, 2, 2, 7, 0, 5, 0, 7, 8, + 1, 2, 5, 1, 3, 8, 7, 7, 7, 8, 7, 8, 0, 7, 8, 1, 4, 4, 5, 6, 7, 5, 5, 2, 9, + 5, 3, 9, 5, 8, 5, 1, 1, 3, 5, 2, 5, 3, 9, 0, 6, 2, 5, 6, 9, 3, 8, 8, 9, 3, + 9, 0, 3, 9, 0, 7, 2, 2, 8, 3, 7, 7, 6, 4, 7, 6, 9, 7, 9, 2, 5, 5, 6, 7, 6, + 2, 6, 9, 5, 3, 1, 2, 5, 3, 4, 6, 9, 4, 4, 6, 9, 5, 1, 9, 5, 3, 6, 1, 4, 1, + 8, 8, 8, 2, 3, 8, 4, 8, 9, 6, 2, 7, 8, 3, 8, 1, 3, 4, 7, 6, 5, 6, 2, 5, 1, + 7, 3, 4, 7, 2, 3, 4, 7, 5, 9, 7, 6, 8, 0, 7, 0, 9, 4, 4, 1, 1, 9, 2, 4, 4, + 8, 1, 3, 9, 1, 9, 0, 6, 7, 3, 8, 2, 8, 1, 2, 5, 8, 6, 7, 3, 6, 1, 7, 3, 7, + 9, 8, 8, 4, 0, 3, 5, 4, 7, 2, 0, 5, 9, 6, 2, 2, 4, 0, 6, 9, 5, 9, 5, 3, 3, + 6, 9, 1, 4, 0, 6, 2, 5, }; // -------- -WUFFS_BASE__MAYBE_STATIC wuffs_base__result_i64 // -wuffs_base__parse_number_i64(wuffs_base__slice_u8 s, uint32_t options) { - uint8_t* p = s.ptr; - uint8_t* q = s.ptr + s.len; - - if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { - for (; (p < q) && (*p == '_'); p++) { - } - } - - bool negative = false; - if (p >= q) { - goto fail_bad_argument; - } else if (*p == '-') { - p++; - negative = true; - } else if (*p == '+') { - p++; - } - - do { - wuffs_base__result_u64 r = wuffs_base__parse_number_u64( - wuffs_base__make_slice_u8(p, (size_t)(q - p)), options); - if (r.status.repr != NULL) { - wuffs_base__result_i64 ret; - ret.status.repr = r.status.repr; - ret.value = 0; - return ret; - } else if (negative) { - if (r.value < 0x8000000000000000) { - wuffs_base__result_i64 ret; - ret.status.repr = NULL; - ret.value = -(int64_t)(r.value); - return ret; - } else if (r.value == 0x8000000000000000) { - wuffs_base__result_i64 ret; - ret.status.repr = NULL; - ret.value = INT64_MIN; - return ret; - } - goto fail_out_of_bounds; - } else if (r.value > 0x7FFFFFFFFFFFFFFF) { - goto fail_out_of_bounds; - } else { - wuffs_base__result_i64 ret; - ret.status.repr = NULL; - ret.value = +(int64_t)(r.value); - return ret; - } +// wuffs_private_impl__powers_of_10 contains truncated approximations to the +// powers of 10, ranging from 1e-307 to 1e+288 inclusive, as 596 pairs of +// uint64_t values (a 128-bit mantissa). +// +// There's also an implicit third column (implied by a linear formula involving +// the base-10 exponent) that is the base-2 exponent, biased by a magic +// constant. That constant (1214 or 0x04BE) equals 1023 + 191. 1023 is the bias +// for IEEE 754 double-precision floating point. 191 is ((3 * 64) - 1) and +// wuffs_private_impl__parse_number_f64_eisel_lemire works with +// multiples-of-64-bit mantissas. +// +// For example, the third row holds the approximation to 1e-305: +// 0xE0B62E29_29ABA83C_331ACDAB_FE94DE87 * (2 ** (0x0049 - 0x04BE)) +// +// Similarly, 1e+4 is approximated by: +// 0x9C400000_00000000_00000000_00000000 * (2 ** (0x044C - 0x04BE)) +// +// Similarly, 1e+68 is approximated by: +// 0xED63A231_D4C4FB27_4CA7AAA8_63EE4BDD * (2 ** (0x0520 - 0x04BE)) +// +// This table was generated by by script/print-mpb-powers-of-10.go +static const uint64_t wuffs_private_impl__powers_of_10[596][2] = { + {0xA5D3B6D479F8E056, 0x8FD0C16206306BAB}, // 1e-307 + {0x8F48A4899877186C, 0xB3C4F1BA87BC8696}, // 1e-306 + {0x331ACDABFE94DE87, 0xE0B62E2929ABA83C}, // 1e-305 + {0x9FF0C08B7F1D0B14, 0x8C71DCD9BA0B4925}, // 1e-304 + {0x07ECF0AE5EE44DD9, 0xAF8E5410288E1B6F}, // 1e-303 + {0xC9E82CD9F69D6150, 0xDB71E91432B1A24A}, // 1e-302 + {0xBE311C083A225CD2, 0x892731AC9FAF056E}, // 1e-301 + {0x6DBD630A48AAF406, 0xAB70FE17C79AC6CA}, // 1e-300 + {0x092CBBCCDAD5B108, 0xD64D3D9DB981787D}, // 1e-299 + {0x25BBF56008C58EA5, 0x85F0468293F0EB4E}, // 1e-298 + {0xAF2AF2B80AF6F24E, 0xA76C582338ED2621}, // 1e-297 + {0x1AF5AF660DB4AEE1, 0xD1476E2C07286FAA}, // 1e-296 + {0x50D98D9FC890ED4D, 0x82CCA4DB847945CA}, // 1e-295 + {0xE50FF107BAB528A0, 0xA37FCE126597973C}, // 1e-294 + {0x1E53ED49A96272C8, 0xCC5FC196FEFD7D0C}, // 1e-293 + {0x25E8E89C13BB0F7A, 0xFF77B1FCBEBCDC4F}, // 1e-292 + {0x77B191618C54E9AC, 0x9FAACF3DF73609B1}, // 1e-291 + {0xD59DF5B9EF6A2417, 0xC795830D75038C1D}, // 1e-290 + {0x4B0573286B44AD1D, 0xF97AE3D0D2446F25}, // 1e-289 + {0x4EE367F9430AEC32, 0x9BECCE62836AC577}, // 1e-288 + {0x229C41F793CDA73F, 0xC2E801FB244576D5}, // 1e-287 + {0x6B43527578C1110F, 0xF3A20279ED56D48A}, // 1e-286 + {0x830A13896B78AAA9, 0x9845418C345644D6}, // 1e-285 + {0x23CC986BC656D553, 0xBE5691EF416BD60C}, // 1e-284 + {0x2CBFBE86B7EC8AA8, 0xEDEC366B11C6CB8F}, // 1e-283 + {0x7BF7D71432F3D6A9, 0x94B3A202EB1C3F39}, // 1e-282 + {0xDAF5CCD93FB0CC53, 0xB9E08A83A5E34F07}, // 1e-281 + {0xD1B3400F8F9CFF68, 0xE858AD248F5C22C9}, // 1e-280 + {0x23100809B9C21FA1, 0x91376C36D99995BE}, // 1e-279 + {0xABD40A0C2832A78A, 0xB58547448FFFFB2D}, // 1e-278 + {0x16C90C8F323F516C, 0xE2E69915B3FFF9F9}, // 1e-277 + {0xAE3DA7D97F6792E3, 0x8DD01FAD907FFC3B}, // 1e-276 + {0x99CD11CFDF41779C, 0xB1442798F49FFB4A}, // 1e-275 + {0x40405643D711D583, 0xDD95317F31C7FA1D}, // 1e-274 + {0x482835EA666B2572, 0x8A7D3EEF7F1CFC52}, // 1e-273 + {0xDA3243650005EECF, 0xAD1C8EAB5EE43B66}, // 1e-272 + {0x90BED43E40076A82, 0xD863B256369D4A40}, // 1e-271 + {0x5A7744A6E804A291, 0x873E4F75E2224E68}, // 1e-270 + {0x711515D0A205CB36, 0xA90DE3535AAAE202}, // 1e-269 + {0x0D5A5B44CA873E03, 0xD3515C2831559A83}, // 1e-268 + {0xE858790AFE9486C2, 0x8412D9991ED58091}, // 1e-267 + {0x626E974DBE39A872, 0xA5178FFF668AE0B6}, // 1e-266 + {0xFB0A3D212DC8128F, 0xCE5D73FF402D98E3}, // 1e-265 + {0x7CE66634BC9D0B99, 0x80FA687F881C7F8E}, // 1e-264 + {0x1C1FFFC1EBC44E80, 0xA139029F6A239F72}, // 1e-263 + {0xA327FFB266B56220, 0xC987434744AC874E}, // 1e-262 + {0x4BF1FF9F0062BAA8, 0xFBE9141915D7A922}, // 1e-261 + {0x6F773FC3603DB4A9, 0x9D71AC8FADA6C9B5}, // 1e-260 + {0xCB550FB4384D21D3, 0xC4CE17B399107C22}, // 1e-259 + {0x7E2A53A146606A48, 0xF6019DA07F549B2B}, // 1e-258 + {0x2EDA7444CBFC426D, 0x99C102844F94E0FB}, // 1e-257 + {0xFA911155FEFB5308, 0xC0314325637A1939}, // 1e-256 + {0x793555AB7EBA27CA, 0xF03D93EEBC589F88}, // 1e-255 + {0x4BC1558B2F3458DE, 0x96267C7535B763B5}, // 1e-254 + {0x9EB1AAEDFB016F16, 0xBBB01B9283253CA2}, // 1e-253 + {0x465E15A979C1CADC, 0xEA9C227723EE8BCB}, // 1e-252 + {0x0BFACD89EC191EC9, 0x92A1958A7675175F}, // 1e-251 + {0xCEF980EC671F667B, 0xB749FAED14125D36}, // 1e-250 + {0x82B7E12780E7401A, 0xE51C79A85916F484}, // 1e-249 + {0xD1B2ECB8B0908810, 0x8F31CC0937AE58D2}, // 1e-248 + {0x861FA7E6DCB4AA15, 0xB2FE3F0B8599EF07}, // 1e-247 + {0x67A791E093E1D49A, 0xDFBDCECE67006AC9}, // 1e-246 + {0xE0C8BB2C5C6D24E0, 0x8BD6A141006042BD}, // 1e-245 + {0x58FAE9F773886E18, 0xAECC49914078536D}, // 1e-244 + {0xAF39A475506A899E, 0xDA7F5BF590966848}, // 1e-243 + {0x6D8406C952429603, 0x888F99797A5E012D}, // 1e-242 + {0xC8E5087BA6D33B83, 0xAAB37FD7D8F58178}, // 1e-241 + {0xFB1E4A9A90880A64, 0xD5605FCDCF32E1D6}, // 1e-240 + {0x5CF2EEA09A55067F, 0x855C3BE0A17FCD26}, // 1e-239 + {0xF42FAA48C0EA481E, 0xA6B34AD8C9DFC06F}, // 1e-238 + {0xF13B94DAF124DA26, 0xD0601D8EFC57B08B}, // 1e-237 + {0x76C53D08D6B70858, 0x823C12795DB6CE57}, // 1e-236 + {0x54768C4B0C64CA6E, 0xA2CB1717B52481ED}, // 1e-235 + {0xA9942F5DCF7DFD09, 0xCB7DDCDDA26DA268}, // 1e-234 + {0xD3F93B35435D7C4C, 0xFE5D54150B090B02}, // 1e-233 + {0xC47BC5014A1A6DAF, 0x9EFA548D26E5A6E1}, // 1e-232 + {0x359AB6419CA1091B, 0xC6B8E9B0709F109A}, // 1e-231 + {0xC30163D203C94B62, 0xF867241C8CC6D4C0}, // 1e-230 + {0x79E0DE63425DCF1D, 0x9B407691D7FC44F8}, // 1e-229 + {0x985915FC12F542E4, 0xC21094364DFB5636}, // 1e-228 + {0x3E6F5B7B17B2939D, 0xF294B943E17A2BC4}, // 1e-227 + {0xA705992CEECF9C42, 0x979CF3CA6CEC5B5A}, // 1e-226 + {0x50C6FF782A838353, 0xBD8430BD08277231}, // 1e-225 + {0xA4F8BF5635246428, 0xECE53CEC4A314EBD}, // 1e-224 + {0x871B7795E136BE99, 0x940F4613AE5ED136}, // 1e-223 + {0x28E2557B59846E3F, 0xB913179899F68584}, // 1e-222 + {0x331AEADA2FE589CF, 0xE757DD7EC07426E5}, // 1e-221 + {0x3FF0D2C85DEF7621, 0x9096EA6F3848984F}, // 1e-220 + {0x0FED077A756B53A9, 0xB4BCA50B065ABE63}, // 1e-219 + {0xD3E8495912C62894, 0xE1EBCE4DC7F16DFB}, // 1e-218 + {0x64712DD7ABBBD95C, 0x8D3360F09CF6E4BD}, // 1e-217 + {0xBD8D794D96AACFB3, 0xB080392CC4349DEC}, // 1e-216 + {0xECF0D7A0FC5583A0, 0xDCA04777F541C567}, // 1e-215 + {0xF41686C49DB57244, 0x89E42CAAF9491B60}, // 1e-214 + {0x311C2875C522CED5, 0xAC5D37D5B79B6239}, // 1e-213 + {0x7D633293366B828B, 0xD77485CB25823AC7}, // 1e-212 + {0xAE5DFF9C02033197, 0x86A8D39EF77164BC}, // 1e-211 + {0xD9F57F830283FDFC, 0xA8530886B54DBDEB}, // 1e-210 + {0xD072DF63C324FD7B, 0xD267CAA862A12D66}, // 1e-209 + {0x4247CB9E59F71E6D, 0x8380DEA93DA4BC60}, // 1e-208 + {0x52D9BE85F074E608, 0xA46116538D0DEB78}, // 1e-207 + {0x67902E276C921F8B, 0xCD795BE870516656}, // 1e-206 + {0x00BA1CD8A3DB53B6, 0x806BD9714632DFF6}, // 1e-205 + {0x80E8A40ECCD228A4, 0xA086CFCD97BF97F3}, // 1e-204 + {0x6122CD128006B2CD, 0xC8A883C0FDAF7DF0}, // 1e-203 + {0x796B805720085F81, 0xFAD2A4B13D1B5D6C}, // 1e-202 + {0xCBE3303674053BB0, 0x9CC3A6EEC6311A63}, // 1e-201 + {0xBEDBFC4411068A9C, 0xC3F490AA77BD60FC}, // 1e-200 + {0xEE92FB5515482D44, 0xF4F1B4D515ACB93B}, // 1e-199 + {0x751BDD152D4D1C4A, 0x991711052D8BF3C5}, // 1e-198 + {0xD262D45A78A0635D, 0xBF5CD54678EEF0B6}, // 1e-197 + {0x86FB897116C87C34, 0xEF340A98172AACE4}, // 1e-196 + {0xD45D35E6AE3D4DA0, 0x9580869F0E7AAC0E}, // 1e-195 + {0x8974836059CCA109, 0xBAE0A846D2195712}, // 1e-194 + {0x2BD1A438703FC94B, 0xE998D258869FACD7}, // 1e-193 + {0x7B6306A34627DDCF, 0x91FF83775423CC06}, // 1e-192 + {0x1A3BC84C17B1D542, 0xB67F6455292CBF08}, // 1e-191 + {0x20CABA5F1D9E4A93, 0xE41F3D6A7377EECA}, // 1e-190 + {0x547EB47B7282EE9C, 0x8E938662882AF53E}, // 1e-189 + {0xE99E619A4F23AA43, 0xB23867FB2A35B28D}, // 1e-188 + {0x6405FA00E2EC94D4, 0xDEC681F9F4C31F31}, // 1e-187 + {0xDE83BC408DD3DD04, 0x8B3C113C38F9F37E}, // 1e-186 + {0x9624AB50B148D445, 0xAE0B158B4738705E}, // 1e-185 + {0x3BADD624DD9B0957, 0xD98DDAEE19068C76}, // 1e-184 + {0xE54CA5D70A80E5D6, 0x87F8A8D4CFA417C9}, // 1e-183 + {0x5E9FCF4CCD211F4C, 0xA9F6D30A038D1DBC}, // 1e-182 + {0x7647C3200069671F, 0xD47487CC8470652B}, // 1e-181 + {0x29ECD9F40041E073, 0x84C8D4DFD2C63F3B}, // 1e-180 + {0xF468107100525890, 0xA5FB0A17C777CF09}, // 1e-179 + {0x7182148D4066EEB4, 0xCF79CC9DB955C2CC}, // 1e-178 + {0xC6F14CD848405530, 0x81AC1FE293D599BF}, // 1e-177 + {0xB8ADA00E5A506A7C, 0xA21727DB38CB002F}, // 1e-176 + {0xA6D90811F0E4851C, 0xCA9CF1D206FDC03B}, // 1e-175 + {0x908F4A166D1DA663, 0xFD442E4688BD304A}, // 1e-174 + {0x9A598E4E043287FE, 0x9E4A9CEC15763E2E}, // 1e-173 + {0x40EFF1E1853F29FD, 0xC5DD44271AD3CDBA}, // 1e-172 + {0xD12BEE59E68EF47C, 0xF7549530E188C128}, // 1e-171 + {0x82BB74F8301958CE, 0x9A94DD3E8CF578B9}, // 1e-170 + {0xE36A52363C1FAF01, 0xC13A148E3032D6E7}, // 1e-169 + {0xDC44E6C3CB279AC1, 0xF18899B1BC3F8CA1}, // 1e-168 + {0x29AB103A5EF8C0B9, 0x96F5600F15A7B7E5}, // 1e-167 + {0x7415D448F6B6F0E7, 0xBCB2B812DB11A5DE}, // 1e-166 + {0x111B495B3464AD21, 0xEBDF661791D60F56}, // 1e-165 + {0xCAB10DD900BEEC34, 0x936B9FCEBB25C995}, // 1e-164 + {0x3D5D514F40EEA742, 0xB84687C269EF3BFB}, // 1e-163 + {0x0CB4A5A3112A5112, 0xE65829B3046B0AFA}, // 1e-162 + {0x47F0E785EABA72AB, 0x8FF71A0FE2C2E6DC}, // 1e-161 + {0x59ED216765690F56, 0xB3F4E093DB73A093}, // 1e-160 + {0x306869C13EC3532C, 0xE0F218B8D25088B8}, // 1e-159 + {0x1E414218C73A13FB, 0x8C974F7383725573}, // 1e-158 + {0xE5D1929EF90898FA, 0xAFBD2350644EEACF}, // 1e-157 + {0xDF45F746B74ABF39, 0xDBAC6C247D62A583}, // 1e-156 + {0x6B8BBA8C328EB783, 0x894BC396CE5DA772}, // 1e-155 + {0x066EA92F3F326564, 0xAB9EB47C81F5114F}, // 1e-154 + {0xC80A537B0EFEFEBD, 0xD686619BA27255A2}, // 1e-153 + {0xBD06742CE95F5F36, 0x8613FD0145877585}, // 1e-152 + {0x2C48113823B73704, 0xA798FC4196E952E7}, // 1e-151 + {0xF75A15862CA504C5, 0xD17F3B51FCA3A7A0}, // 1e-150 + {0x9A984D73DBE722FB, 0x82EF85133DE648C4}, // 1e-149 + {0xC13E60D0D2E0EBBA, 0xA3AB66580D5FDAF5}, // 1e-148 + {0x318DF905079926A8, 0xCC963FEE10B7D1B3}, // 1e-147 + {0xFDF17746497F7052, 0xFFBBCFE994E5C61F}, // 1e-146 + {0xFEB6EA8BEDEFA633, 0x9FD561F1FD0F9BD3}, // 1e-145 + {0xFE64A52EE96B8FC0, 0xC7CABA6E7C5382C8}, // 1e-144 + {0x3DFDCE7AA3C673B0, 0xF9BD690A1B68637B}, // 1e-143 + {0x06BEA10CA65C084E, 0x9C1661A651213E2D}, // 1e-142 + {0x486E494FCFF30A62, 0xC31BFA0FE5698DB8}, // 1e-141 + {0x5A89DBA3C3EFCCFA, 0xF3E2F893DEC3F126}, // 1e-140 + {0xF89629465A75E01C, 0x986DDB5C6B3A76B7}, // 1e-139 + {0xF6BBB397F1135823, 0xBE89523386091465}, // 1e-138 + {0x746AA07DED582E2C, 0xEE2BA6C0678B597F}, // 1e-137 + {0xA8C2A44EB4571CDC, 0x94DB483840B717EF}, // 1e-136 + {0x92F34D62616CE413, 0xBA121A4650E4DDEB}, // 1e-135 + {0x77B020BAF9C81D17, 0xE896A0D7E51E1566}, // 1e-134 + {0x0ACE1474DC1D122E, 0x915E2486EF32CD60}, // 1e-133 + {0x0D819992132456BA, 0xB5B5ADA8AAFF80B8}, // 1e-132 + {0x10E1FFF697ED6C69, 0xE3231912D5BF60E6}, // 1e-131 + {0xCA8D3FFA1EF463C1, 0x8DF5EFABC5979C8F}, // 1e-130 + {0xBD308FF8A6B17CB2, 0xB1736B96B6FD83B3}, // 1e-129 + {0xAC7CB3F6D05DDBDE, 0xDDD0467C64BCE4A0}, // 1e-128 + {0x6BCDF07A423AA96B, 0x8AA22C0DBEF60EE4}, // 1e-127 + {0x86C16C98D2C953C6, 0xAD4AB7112EB3929D}, // 1e-126 + {0xE871C7BF077BA8B7, 0xD89D64D57A607744}, // 1e-125 + {0x11471CD764AD4972, 0x87625F056C7C4A8B}, // 1e-124 + {0xD598E40D3DD89BCF, 0xA93AF6C6C79B5D2D}, // 1e-123 + {0x4AFF1D108D4EC2C3, 0xD389B47879823479}, // 1e-122 + {0xCEDF722A585139BA, 0x843610CB4BF160CB}, // 1e-121 + {0xC2974EB4EE658828, 0xA54394FE1EEDB8FE}, // 1e-120 + {0x733D226229FEEA32, 0xCE947A3DA6A9273E}, // 1e-119 + {0x0806357D5A3F525F, 0x811CCC668829B887}, // 1e-118 + {0xCA07C2DCB0CF26F7, 0xA163FF802A3426A8}, // 1e-117 + {0xFC89B393DD02F0B5, 0xC9BCFF6034C13052}, // 1e-116 + {0xBBAC2078D443ACE2, 0xFC2C3F3841F17C67}, // 1e-115 + {0xD54B944B84AA4C0D, 0x9D9BA7832936EDC0}, // 1e-114 + {0x0A9E795E65D4DF11, 0xC5029163F384A931}, // 1e-113 + {0x4D4617B5FF4A16D5, 0xF64335BCF065D37D}, // 1e-112 + {0x504BCED1BF8E4E45, 0x99EA0196163FA42E}, // 1e-111 + {0xE45EC2862F71E1D6, 0xC06481FB9BCF8D39}, // 1e-110 + {0x5D767327BB4E5A4C, 0xF07DA27A82C37088}, // 1e-109 + {0x3A6A07F8D510F86F, 0x964E858C91BA2655}, // 1e-108 + {0x890489F70A55368B, 0xBBE226EFB628AFEA}, // 1e-107 + {0x2B45AC74CCEA842E, 0xEADAB0ABA3B2DBE5}, // 1e-106 + {0x3B0B8BC90012929D, 0x92C8AE6B464FC96F}, // 1e-105 + {0x09CE6EBB40173744, 0xB77ADA0617E3BBCB}, // 1e-104 + {0xCC420A6A101D0515, 0xE55990879DDCAABD}, // 1e-103 + {0x9FA946824A12232D, 0x8F57FA54C2A9EAB6}, // 1e-102 + {0x47939822DC96ABF9, 0xB32DF8E9F3546564}, // 1e-101 + {0x59787E2B93BC56F7, 0xDFF9772470297EBD}, // 1e-100 + {0x57EB4EDB3C55B65A, 0x8BFBEA76C619EF36}, // 1e-99 + {0xEDE622920B6B23F1, 0xAEFAE51477A06B03}, // 1e-98 + {0xE95FAB368E45ECED, 0xDAB99E59958885C4}, // 1e-97 + {0x11DBCB0218EBB414, 0x88B402F7FD75539B}, // 1e-96 + {0xD652BDC29F26A119, 0xAAE103B5FCD2A881}, // 1e-95 + {0x4BE76D3346F0495F, 0xD59944A37C0752A2}, // 1e-94 + {0x6F70A4400C562DDB, 0x857FCAE62D8493A5}, // 1e-93 + {0xCB4CCD500F6BB952, 0xA6DFBD9FB8E5B88E}, // 1e-92 + {0x7E2000A41346A7A7, 0xD097AD07A71F26B2}, // 1e-91 + {0x8ED400668C0C28C8, 0x825ECC24C873782F}, // 1e-90 + {0x728900802F0F32FA, 0xA2F67F2DFA90563B}, // 1e-89 + {0x4F2B40A03AD2FFB9, 0xCBB41EF979346BCA}, // 1e-88 + {0xE2F610C84987BFA8, 0xFEA126B7D78186BC}, // 1e-87 + {0x0DD9CA7D2DF4D7C9, 0x9F24B832E6B0F436}, // 1e-86 + {0x91503D1C79720DBB, 0xC6EDE63FA05D3143}, // 1e-85 + {0x75A44C6397CE912A, 0xF8A95FCF88747D94}, // 1e-84 + {0xC986AFBE3EE11ABA, 0x9B69DBE1B548CE7C}, // 1e-83 + {0xFBE85BADCE996168, 0xC24452DA229B021B}, // 1e-82 + {0xFAE27299423FB9C3, 0xF2D56790AB41C2A2}, // 1e-81 + {0xDCCD879FC967D41A, 0x97C560BA6B0919A5}, // 1e-80 + {0x5400E987BBC1C920, 0xBDB6B8E905CB600F}, // 1e-79 + {0x290123E9AAB23B68, 0xED246723473E3813}, // 1e-78 + {0xF9A0B6720AAF6521, 0x9436C0760C86E30B}, // 1e-77 + {0xF808E40E8D5B3E69, 0xB94470938FA89BCE}, // 1e-76 + {0xB60B1D1230B20E04, 0xE7958CB87392C2C2}, // 1e-75 + {0xB1C6F22B5E6F48C2, 0x90BD77F3483BB9B9}, // 1e-74 + {0x1E38AEB6360B1AF3, 0xB4ECD5F01A4AA828}, // 1e-73 + {0x25C6DA63C38DE1B0, 0xE2280B6C20DD5232}, // 1e-72 + {0x579C487E5A38AD0E, 0x8D590723948A535F}, // 1e-71 + {0x2D835A9DF0C6D851, 0xB0AF48EC79ACE837}, // 1e-70 + {0xF8E431456CF88E65, 0xDCDB1B2798182244}, // 1e-69 + {0x1B8E9ECB641B58FF, 0x8A08F0F8BF0F156B}, // 1e-68 + {0xE272467E3D222F3F, 0xAC8B2D36EED2DAC5}, // 1e-67 + {0x5B0ED81DCC6ABB0F, 0xD7ADF884AA879177}, // 1e-66 + {0x98E947129FC2B4E9, 0x86CCBB52EA94BAEA}, // 1e-65 + {0x3F2398D747B36224, 0xA87FEA27A539E9A5}, // 1e-64 + {0x8EEC7F0D19A03AAD, 0xD29FE4B18E88640E}, // 1e-63 + {0x1953CF68300424AC, 0x83A3EEEEF9153E89}, // 1e-62 + {0x5FA8C3423C052DD7, 0xA48CEAAAB75A8E2B}, // 1e-61 + {0x3792F412CB06794D, 0xCDB02555653131B6}, // 1e-60 + {0xE2BBD88BBEE40BD0, 0x808E17555F3EBF11}, // 1e-59 + {0x5B6ACEAEAE9D0EC4, 0xA0B19D2AB70E6ED6}, // 1e-58 + {0xF245825A5A445275, 0xC8DE047564D20A8B}, // 1e-57 + {0xEED6E2F0F0D56712, 0xFB158592BE068D2E}, // 1e-56 + {0x55464DD69685606B, 0x9CED737BB6C4183D}, // 1e-55 + {0xAA97E14C3C26B886, 0xC428D05AA4751E4C}, // 1e-54 + {0xD53DD99F4B3066A8, 0xF53304714D9265DF}, // 1e-53 + {0xE546A8038EFE4029, 0x993FE2C6D07B7FAB}, // 1e-52 + {0xDE98520472BDD033, 0xBF8FDB78849A5F96}, // 1e-51 + {0x963E66858F6D4440, 0xEF73D256A5C0F77C}, // 1e-50 + {0xDDE7001379A44AA8, 0x95A8637627989AAD}, // 1e-49 + {0x5560C018580D5D52, 0xBB127C53B17EC159}, // 1e-48 + {0xAAB8F01E6E10B4A6, 0xE9D71B689DDE71AF}, // 1e-47 + {0xCAB3961304CA70E8, 0x9226712162AB070D}, // 1e-46 + {0x3D607B97C5FD0D22, 0xB6B00D69BB55C8D1}, // 1e-45 + {0x8CB89A7DB77C506A, 0xE45C10C42A2B3B05}, // 1e-44 + {0x77F3608E92ADB242, 0x8EB98A7A9A5B04E3}, // 1e-43 + {0x55F038B237591ED3, 0xB267ED1940F1C61C}, // 1e-42 + {0x6B6C46DEC52F6688, 0xDF01E85F912E37A3}, // 1e-41 + {0x2323AC4B3B3DA015, 0x8B61313BBABCE2C6}, // 1e-40 + {0xABEC975E0A0D081A, 0xAE397D8AA96C1B77}, // 1e-39 + {0x96E7BD358C904A21, 0xD9C7DCED53C72255}, // 1e-38 + {0x7E50D64177DA2E54, 0x881CEA14545C7575}, // 1e-37 + {0xDDE50BD1D5D0B9E9, 0xAA242499697392D2}, // 1e-36 + {0x955E4EC64B44E864, 0xD4AD2DBFC3D07787}, // 1e-35 + {0xBD5AF13BEF0B113E, 0x84EC3C97DA624AB4}, // 1e-34 + {0xECB1AD8AEACDD58E, 0xA6274BBDD0FADD61}, // 1e-33 + {0x67DE18EDA5814AF2, 0xCFB11EAD453994BA}, // 1e-32 + {0x80EACF948770CED7, 0x81CEB32C4B43FCF4}, // 1e-31 + {0xA1258379A94D028D, 0xA2425FF75E14FC31}, // 1e-30 + {0x096EE45813A04330, 0xCAD2F7F5359A3B3E}, // 1e-29 + {0x8BCA9D6E188853FC, 0xFD87B5F28300CA0D}, // 1e-28 + {0x775EA264CF55347D, 0x9E74D1B791E07E48}, // 1e-27 + {0x95364AFE032A819D, 0xC612062576589DDA}, // 1e-26 + {0x3A83DDBD83F52204, 0xF79687AED3EEC551}, // 1e-25 + {0xC4926A9672793542, 0x9ABE14CD44753B52}, // 1e-24 + {0x75B7053C0F178293, 0xC16D9A0095928A27}, // 1e-23 + {0x5324C68B12DD6338, 0xF1C90080BAF72CB1}, // 1e-22 + {0xD3F6FC16EBCA5E03, 0x971DA05074DA7BEE}, // 1e-21 + {0x88F4BB1CA6BCF584, 0xBCE5086492111AEA}, // 1e-20 + {0x2B31E9E3D06C32E5, 0xEC1E4A7DB69561A5}, // 1e-19 + {0x3AFF322E62439FCF, 0x9392EE8E921D5D07}, // 1e-18 + {0x09BEFEB9FAD487C2, 0xB877AA3236A4B449}, // 1e-17 + {0x4C2EBE687989A9B3, 0xE69594BEC44DE15B}, // 1e-16 + {0x0F9D37014BF60A10, 0x901D7CF73AB0ACD9}, // 1e-15 + {0x538484C19EF38C94, 0xB424DC35095CD80F}, // 1e-14 + {0x2865A5F206B06FB9, 0xE12E13424BB40E13}, // 1e-13 + {0xF93F87B7442E45D3, 0x8CBCCC096F5088CB}, // 1e-12 + {0xF78F69A51539D748, 0xAFEBFF0BCB24AAFE}, // 1e-11 + {0xB573440E5A884D1B, 0xDBE6FECEBDEDD5BE}, // 1e-10 + {0x31680A88F8953030, 0x89705F4136B4A597}, // 1e-9 + {0xFDC20D2B36BA7C3D, 0xABCC77118461CEFC}, // 1e-8 + {0x3D32907604691B4C, 0xD6BF94D5E57A42BC}, // 1e-7 + {0xA63F9A49C2C1B10F, 0x8637BD05AF6C69B5}, // 1e-6 + {0x0FCF80DC33721D53, 0xA7C5AC471B478423}, // 1e-5 + {0xD3C36113404EA4A8, 0xD1B71758E219652B}, // 1e-4 + {0x645A1CAC083126E9, 0x83126E978D4FDF3B}, // 1e-3 + {0x3D70A3D70A3D70A3, 0xA3D70A3D70A3D70A}, // 1e-2 + {0xCCCCCCCCCCCCCCCC, 0xCCCCCCCCCCCCCCCC}, // 1e-1 + {0x0000000000000000, 0x8000000000000000}, // 1e0 + {0x0000000000000000, 0xA000000000000000}, // 1e1 + {0x0000000000000000, 0xC800000000000000}, // 1e2 + {0x0000000000000000, 0xFA00000000000000}, // 1e3 + {0x0000000000000000, 0x9C40000000000000}, // 1e4 + {0x0000000000000000, 0xC350000000000000}, // 1e5 + {0x0000000000000000, 0xF424000000000000}, // 1e6 + {0x0000000000000000, 0x9896800000000000}, // 1e7 + {0x0000000000000000, 0xBEBC200000000000}, // 1e8 + {0x0000000000000000, 0xEE6B280000000000}, // 1e9 + {0x0000000000000000, 0x9502F90000000000}, // 1e10 + {0x0000000000000000, 0xBA43B74000000000}, // 1e11 + {0x0000000000000000, 0xE8D4A51000000000}, // 1e12 + {0x0000000000000000, 0x9184E72A00000000}, // 1e13 + {0x0000000000000000, 0xB5E620F480000000}, // 1e14 + {0x0000000000000000, 0xE35FA931A0000000}, // 1e15 + {0x0000000000000000, 0x8E1BC9BF04000000}, // 1e16 + {0x0000000000000000, 0xB1A2BC2EC5000000}, // 1e17 + {0x0000000000000000, 0xDE0B6B3A76400000}, // 1e18 + {0x0000000000000000, 0x8AC7230489E80000}, // 1e19 + {0x0000000000000000, 0xAD78EBC5AC620000}, // 1e20 + {0x0000000000000000, 0xD8D726B7177A8000}, // 1e21 + {0x0000000000000000, 0x878678326EAC9000}, // 1e22 + {0x0000000000000000, 0xA968163F0A57B400}, // 1e23 + {0x0000000000000000, 0xD3C21BCECCEDA100}, // 1e24 + {0x0000000000000000, 0x84595161401484A0}, // 1e25 + {0x0000000000000000, 0xA56FA5B99019A5C8}, // 1e26 + {0x0000000000000000, 0xCECB8F27F4200F3A}, // 1e27 + {0x4000000000000000, 0x813F3978F8940984}, // 1e28 + {0x5000000000000000, 0xA18F07D736B90BE5}, // 1e29 + {0xA400000000000000, 0xC9F2C9CD04674EDE}, // 1e30 + {0x4D00000000000000, 0xFC6F7C4045812296}, // 1e31 + {0xF020000000000000, 0x9DC5ADA82B70B59D}, // 1e32 + {0x6C28000000000000, 0xC5371912364CE305}, // 1e33 + {0xC732000000000000, 0xF684DF56C3E01BC6}, // 1e34 + {0x3C7F400000000000, 0x9A130B963A6C115C}, // 1e35 + {0x4B9F100000000000, 0xC097CE7BC90715B3}, // 1e36 + {0x1E86D40000000000, 0xF0BDC21ABB48DB20}, // 1e37 + {0x1314448000000000, 0x96769950B50D88F4}, // 1e38 + {0x17D955A000000000, 0xBC143FA4E250EB31}, // 1e39 + {0x5DCFAB0800000000, 0xEB194F8E1AE525FD}, // 1e40 + {0x5AA1CAE500000000, 0x92EFD1B8D0CF37BE}, // 1e41 + {0xF14A3D9E40000000, 0xB7ABC627050305AD}, // 1e42 + {0x6D9CCD05D0000000, 0xE596B7B0C643C719}, // 1e43 + {0xE4820023A2000000, 0x8F7E32CE7BEA5C6F}, // 1e44 + {0xDDA2802C8A800000, 0xB35DBF821AE4F38B}, // 1e45 + {0xD50B2037AD200000, 0xE0352F62A19E306E}, // 1e46 + {0x4526F422CC340000, 0x8C213D9DA502DE45}, // 1e47 + {0x9670B12B7F410000, 0xAF298D050E4395D6}, // 1e48 + {0x3C0CDD765F114000, 0xDAF3F04651D47B4C}, // 1e49 + {0xA5880A69FB6AC800, 0x88D8762BF324CD0F}, // 1e50 + {0x8EEA0D047A457A00, 0xAB0E93B6EFEE0053}, // 1e51 + {0x72A4904598D6D880, 0xD5D238A4ABE98068}, // 1e52 + {0x47A6DA2B7F864750, 0x85A36366EB71F041}, // 1e53 + {0x999090B65F67D924, 0xA70C3C40A64E6C51}, // 1e54 + {0xFFF4B4E3F741CF6D, 0xD0CF4B50CFE20765}, // 1e55 + {0xBFF8F10E7A8921A4, 0x82818F1281ED449F}, // 1e56 + {0xAFF72D52192B6A0D, 0xA321F2D7226895C7}, // 1e57 + {0x9BF4F8A69F764490, 0xCBEA6F8CEB02BB39}, // 1e58 + {0x02F236D04753D5B4, 0xFEE50B7025C36A08}, // 1e59 + {0x01D762422C946590, 0x9F4F2726179A2245}, // 1e60 + {0x424D3AD2B7B97EF5, 0xC722F0EF9D80AAD6}, // 1e61 + {0xD2E0898765A7DEB2, 0xF8EBAD2B84E0D58B}, // 1e62 + {0x63CC55F49F88EB2F, 0x9B934C3B330C8577}, // 1e63 + {0x3CBF6B71C76B25FB, 0xC2781F49FFCFA6D5}, // 1e64 + {0x8BEF464E3945EF7A, 0xF316271C7FC3908A}, // 1e65 + {0x97758BF0E3CBB5AC, 0x97EDD871CFDA3A56}, // 1e66 + {0x3D52EEED1CBEA317, 0xBDE94E8E43D0C8EC}, // 1e67 + {0x4CA7AAA863EE4BDD, 0xED63A231D4C4FB27}, // 1e68 + {0x8FE8CAA93E74EF6A, 0x945E455F24FB1CF8}, // 1e69 + {0xB3E2FD538E122B44, 0xB975D6B6EE39E436}, // 1e70 + {0x60DBBCA87196B616, 0xE7D34C64A9C85D44}, // 1e71 + {0xBC8955E946FE31CD, 0x90E40FBEEA1D3A4A}, // 1e72 + {0x6BABAB6398BDBE41, 0xB51D13AEA4A488DD}, // 1e73 + {0xC696963C7EED2DD1, 0xE264589A4DCDAB14}, // 1e74 + {0xFC1E1DE5CF543CA2, 0x8D7EB76070A08AEC}, // 1e75 + {0x3B25A55F43294BCB, 0xB0DE65388CC8ADA8}, // 1e76 + {0x49EF0EB713F39EBE, 0xDD15FE86AFFAD912}, // 1e77 + {0x6E3569326C784337, 0x8A2DBF142DFCC7AB}, // 1e78 + {0x49C2C37F07965404, 0xACB92ED9397BF996}, // 1e79 + {0xDC33745EC97BE906, 0xD7E77A8F87DAF7FB}, // 1e80 + {0x69A028BB3DED71A3, 0x86F0AC99B4E8DAFD}, // 1e81 + {0xC40832EA0D68CE0C, 0xA8ACD7C0222311BC}, // 1e82 + {0xF50A3FA490C30190, 0xD2D80DB02AABD62B}, // 1e83 + {0x792667C6DA79E0FA, 0x83C7088E1AAB65DB}, // 1e84 + {0x577001B891185938, 0xA4B8CAB1A1563F52}, // 1e85 + {0xED4C0226B55E6F86, 0xCDE6FD5E09ABCF26}, // 1e86 + {0x544F8158315B05B4, 0x80B05E5AC60B6178}, // 1e87 + {0x696361AE3DB1C721, 0xA0DC75F1778E39D6}, // 1e88 + {0x03BC3A19CD1E38E9, 0xC913936DD571C84C}, // 1e89 + {0x04AB48A04065C723, 0xFB5878494ACE3A5F}, // 1e90 + {0x62EB0D64283F9C76, 0x9D174B2DCEC0E47B}, // 1e91 + {0x3BA5D0BD324F8394, 0xC45D1DF942711D9A}, // 1e92 + {0xCA8F44EC7EE36479, 0xF5746577930D6500}, // 1e93 + {0x7E998B13CF4E1ECB, 0x9968BF6ABBE85F20}, // 1e94 + {0x9E3FEDD8C321A67E, 0xBFC2EF456AE276E8}, // 1e95 + {0xC5CFE94EF3EA101E, 0xEFB3AB16C59B14A2}, // 1e96 + {0xBBA1F1D158724A12, 0x95D04AEE3B80ECE5}, // 1e97 + {0x2A8A6E45AE8EDC97, 0xBB445DA9CA61281F}, // 1e98 + {0xF52D09D71A3293BD, 0xEA1575143CF97226}, // 1e99 + {0x593C2626705F9C56, 0x924D692CA61BE758}, // 1e100 + {0x6F8B2FB00C77836C, 0xB6E0C377CFA2E12E}, // 1e101 + {0x0B6DFB9C0F956447, 0xE498F455C38B997A}, // 1e102 + {0x4724BD4189BD5EAC, 0x8EDF98B59A373FEC}, // 1e103 + {0x58EDEC91EC2CB657, 0xB2977EE300C50FE7}, // 1e104 + {0x2F2967B66737E3ED, 0xDF3D5E9BC0F653E1}, // 1e105 + {0xBD79E0D20082EE74, 0x8B865B215899F46C}, // 1e106 + {0xECD8590680A3AA11, 0xAE67F1E9AEC07187}, // 1e107 + {0xE80E6F4820CC9495, 0xDA01EE641A708DE9}, // 1e108 + {0x3109058D147FDCDD, 0x884134FE908658B2}, // 1e109 + {0xBD4B46F0599FD415, 0xAA51823E34A7EEDE}, // 1e110 + {0x6C9E18AC7007C91A, 0xD4E5E2CDC1D1EA96}, // 1e111 + {0x03E2CF6BC604DDB0, 0x850FADC09923329E}, // 1e112 + {0x84DB8346B786151C, 0xA6539930BF6BFF45}, // 1e113 + {0xE612641865679A63, 0xCFE87F7CEF46FF16}, // 1e114 + {0x4FCB7E8F3F60C07E, 0x81F14FAE158C5F6E}, // 1e115 + {0xE3BE5E330F38F09D, 0xA26DA3999AEF7749}, // 1e116 + {0x5CADF5BFD3072CC5, 0xCB090C8001AB551C}, // 1e117 + {0x73D9732FC7C8F7F6, 0xFDCB4FA002162A63}, // 1e118 + {0x2867E7FDDCDD9AFA, 0x9E9F11C4014DDA7E}, // 1e119 + {0xB281E1FD541501B8, 0xC646D63501A1511D}, // 1e120 + {0x1F225A7CA91A4226, 0xF7D88BC24209A565}, // 1e121 + {0x3375788DE9B06958, 0x9AE757596946075F}, // 1e122 + {0x0052D6B1641C83AE, 0xC1A12D2FC3978937}, // 1e123 + {0xC0678C5DBD23A49A, 0xF209787BB47D6B84}, // 1e124 + {0xF840B7BA963646E0, 0x9745EB4D50CE6332}, // 1e125 + {0xB650E5A93BC3D898, 0xBD176620A501FBFF}, // 1e126 + {0xA3E51F138AB4CEBE, 0xEC5D3FA8CE427AFF}, // 1e127 + {0xC66F336C36B10137, 0x93BA47C980E98CDF}, // 1e128 + {0xB80B0047445D4184, 0xB8A8D9BBE123F017}, // 1e129 + {0xA60DC059157491E5, 0xE6D3102AD96CEC1D}, // 1e130 + {0x87C89837AD68DB2F, 0x9043EA1AC7E41392}, // 1e131 + {0x29BABE4598C311FB, 0xB454E4A179DD1877}, // 1e132 + {0xF4296DD6FEF3D67A, 0xE16A1DC9D8545E94}, // 1e133 + {0x1899E4A65F58660C, 0x8CE2529E2734BB1D}, // 1e134 + {0x5EC05DCFF72E7F8F, 0xB01AE745B101E9E4}, // 1e135 + {0x76707543F4FA1F73, 0xDC21A1171D42645D}, // 1e136 + {0x6A06494A791C53A8, 0x899504AE72497EBA}, // 1e137 + {0x0487DB9D17636892, 0xABFA45DA0EDBDE69}, // 1e138 + {0x45A9D2845D3C42B6, 0xD6F8D7509292D603}, // 1e139 + {0x0B8A2392BA45A9B2, 0x865B86925B9BC5C2}, // 1e140 + {0x8E6CAC7768D7141E, 0xA7F26836F282B732}, // 1e141 + {0x3207D795430CD926, 0xD1EF0244AF2364FF}, // 1e142 + {0x7F44E6BD49E807B8, 0x8335616AED761F1F}, // 1e143 + {0x5F16206C9C6209A6, 0xA402B9C5A8D3A6E7}, // 1e144 + {0x36DBA887C37A8C0F, 0xCD036837130890A1}, // 1e145 + {0xC2494954DA2C9789, 0x802221226BE55A64}, // 1e146 + {0xF2DB9BAA10B7BD6C, 0xA02AA96B06DEB0FD}, // 1e147 + {0x6F92829494E5ACC7, 0xC83553C5C8965D3D}, // 1e148 + {0xCB772339BA1F17F9, 0xFA42A8B73ABBF48C}, // 1e149 + {0xFF2A760414536EFB, 0x9C69A97284B578D7}, // 1e150 + {0xFEF5138519684ABA, 0xC38413CF25E2D70D}, // 1e151 + {0x7EB258665FC25D69, 0xF46518C2EF5B8CD1}, // 1e152 + {0xEF2F773FFBD97A61, 0x98BF2F79D5993802}, // 1e153 + {0xAAFB550FFACFD8FA, 0xBEEEFB584AFF8603}, // 1e154 + {0x95BA2A53F983CF38, 0xEEAABA2E5DBF6784}, // 1e155 + {0xDD945A747BF26183, 0x952AB45CFA97A0B2}, // 1e156 + {0x94F971119AEEF9E4, 0xBA756174393D88DF}, // 1e157 + {0x7A37CD5601AAB85D, 0xE912B9D1478CEB17}, // 1e158 + {0xAC62E055C10AB33A, 0x91ABB422CCB812EE}, // 1e159 + {0x577B986B314D6009, 0xB616A12B7FE617AA}, // 1e160 + {0xED5A7E85FDA0B80B, 0xE39C49765FDF9D94}, // 1e161 + {0x14588F13BE847307, 0x8E41ADE9FBEBC27D}, // 1e162 + {0x596EB2D8AE258FC8, 0xB1D219647AE6B31C}, // 1e163 + {0x6FCA5F8ED9AEF3BB, 0xDE469FBD99A05FE3}, // 1e164 + {0x25DE7BB9480D5854, 0x8AEC23D680043BEE}, // 1e165 + {0xAF561AA79A10AE6A, 0xADA72CCC20054AE9}, // 1e166 + {0x1B2BA1518094DA04, 0xD910F7FF28069DA4}, // 1e167 + {0x90FB44D2F05D0842, 0x87AA9AFF79042286}, // 1e168 + {0x353A1607AC744A53, 0xA99541BF57452B28}, // 1e169 + {0x42889B8997915CE8, 0xD3FA922F2D1675F2}, // 1e170 + {0x69956135FEBADA11, 0x847C9B5D7C2E09B7}, // 1e171 + {0x43FAB9837E699095, 0xA59BC234DB398C25}, // 1e172 + {0x94F967E45E03F4BB, 0xCF02B2C21207EF2E}, // 1e173 + {0x1D1BE0EEBAC278F5, 0x8161AFB94B44F57D}, // 1e174 + {0x6462D92A69731732, 0xA1BA1BA79E1632DC}, // 1e175 + {0x7D7B8F7503CFDCFE, 0xCA28A291859BBF93}, // 1e176 + {0x5CDA735244C3D43E, 0xFCB2CB35E702AF78}, // 1e177 + {0x3A0888136AFA64A7, 0x9DEFBF01B061ADAB}, // 1e178 + {0x088AAA1845B8FDD0, 0xC56BAEC21C7A1916}, // 1e179 + {0x8AAD549E57273D45, 0xF6C69A72A3989F5B}, // 1e180 + {0x36AC54E2F678864B, 0x9A3C2087A63F6399}, // 1e181 + {0x84576A1BB416A7DD, 0xC0CB28A98FCF3C7F}, // 1e182 + {0x656D44A2A11C51D5, 0xF0FDF2D3F3C30B9F}, // 1e183 + {0x9F644AE5A4B1B325, 0x969EB7C47859E743}, // 1e184 + {0x873D5D9F0DDE1FEE, 0xBC4665B596706114}, // 1e185 + {0xA90CB506D155A7EA, 0xEB57FF22FC0C7959}, // 1e186 + {0x09A7F12442D588F2, 0x9316FF75DD87CBD8}, // 1e187 + {0x0C11ED6D538AEB2F, 0xB7DCBF5354E9BECE}, // 1e188 + {0x8F1668C8A86DA5FA, 0xE5D3EF282A242E81}, // 1e189 + {0xF96E017D694487BC, 0x8FA475791A569D10}, // 1e190 + {0x37C981DCC395A9AC, 0xB38D92D760EC4455}, // 1e191 + {0x85BBE253F47B1417, 0xE070F78D3927556A}, // 1e192 + {0x93956D7478CCEC8E, 0x8C469AB843B89562}, // 1e193 + {0x387AC8D1970027B2, 0xAF58416654A6BABB}, // 1e194 + {0x06997B05FCC0319E, 0xDB2E51BFE9D0696A}, // 1e195 + {0x441FECE3BDF81F03, 0x88FCF317F22241E2}, // 1e196 + {0xD527E81CAD7626C3, 0xAB3C2FDDEEAAD25A}, // 1e197 + {0x8A71E223D8D3B074, 0xD60B3BD56A5586F1}, // 1e198 + {0xF6872D5667844E49, 0x85C7056562757456}, // 1e199 + {0xB428F8AC016561DB, 0xA738C6BEBB12D16C}, // 1e200 + {0xE13336D701BEBA52, 0xD106F86E69D785C7}, // 1e201 + {0xECC0024661173473, 0x82A45B450226B39C}, // 1e202 + {0x27F002D7F95D0190, 0xA34D721642B06084}, // 1e203 + {0x31EC038DF7B441F4, 0xCC20CE9BD35C78A5}, // 1e204 + {0x7E67047175A15271, 0xFF290242C83396CE}, // 1e205 + {0x0F0062C6E984D386, 0x9F79A169BD203E41}, // 1e206 + {0x52C07B78A3E60868, 0xC75809C42C684DD1}, // 1e207 + {0xA7709A56CCDF8A82, 0xF92E0C3537826145}, // 1e208 + {0x88A66076400BB691, 0x9BBCC7A142B17CCB}, // 1e209 + {0x6ACFF893D00EA435, 0xC2ABF989935DDBFE}, // 1e210 + {0x0583F6B8C4124D43, 0xF356F7EBF83552FE}, // 1e211 + {0xC3727A337A8B704A, 0x98165AF37B2153DE}, // 1e212 + {0x744F18C0592E4C5C, 0xBE1BF1B059E9A8D6}, // 1e213 + {0x1162DEF06F79DF73, 0xEDA2EE1C7064130C}, // 1e214 + {0x8ADDCB5645AC2BA8, 0x9485D4D1C63E8BE7}, // 1e215 + {0x6D953E2BD7173692, 0xB9A74A0637CE2EE1}, // 1e216 + {0xC8FA8DB6CCDD0437, 0xE8111C87C5C1BA99}, // 1e217 + {0x1D9C9892400A22A2, 0x910AB1D4DB9914A0}, // 1e218 + {0x2503BEB6D00CAB4B, 0xB54D5E4A127F59C8}, // 1e219 + {0x2E44AE64840FD61D, 0xE2A0B5DC971F303A}, // 1e220 + {0x5CEAECFED289E5D2, 0x8DA471A9DE737E24}, // 1e221 + {0x7425A83E872C5F47, 0xB10D8E1456105DAD}, // 1e222 + {0xD12F124E28F77719, 0xDD50F1996B947518}, // 1e223 + {0x82BD6B70D99AAA6F, 0x8A5296FFE33CC92F}, // 1e224 + {0x636CC64D1001550B, 0xACE73CBFDC0BFB7B}, // 1e225 + {0x3C47F7E05401AA4E, 0xD8210BEFD30EFA5A}, // 1e226 + {0x65ACFAEC34810A71, 0x8714A775E3E95C78}, // 1e227 + {0x7F1839A741A14D0D, 0xA8D9D1535CE3B396}, // 1e228 + {0x1EDE48111209A050, 0xD31045A8341CA07C}, // 1e229 + {0x934AED0AAB460432, 0x83EA2B892091E44D}, // 1e230 + {0xF81DA84D5617853F, 0xA4E4B66B68B65D60}, // 1e231 + {0x36251260AB9D668E, 0xCE1DE40642E3F4B9}, // 1e232 + {0xC1D72B7C6B426019, 0x80D2AE83E9CE78F3}, // 1e233 + {0xB24CF65B8612F81F, 0xA1075A24E4421730}, // 1e234 + {0xDEE033F26797B627, 0xC94930AE1D529CFC}, // 1e235 + {0x169840EF017DA3B1, 0xFB9B7CD9A4A7443C}, // 1e236 + {0x8E1F289560EE864E, 0x9D412E0806E88AA5}, // 1e237 + {0xF1A6F2BAB92A27E2, 0xC491798A08A2AD4E}, // 1e238 + {0xAE10AF696774B1DB, 0xF5B5D7EC8ACB58A2}, // 1e239 + {0xACCA6DA1E0A8EF29, 0x9991A6F3D6BF1765}, // 1e240 + {0x17FD090A58D32AF3, 0xBFF610B0CC6EDD3F}, // 1e241 + {0xDDFC4B4CEF07F5B0, 0xEFF394DCFF8A948E}, // 1e242 + {0x4ABDAF101564F98E, 0x95F83D0A1FB69CD9}, // 1e243 + {0x9D6D1AD41ABE37F1, 0xBB764C4CA7A4440F}, // 1e244 + {0x84C86189216DC5ED, 0xEA53DF5FD18D5513}, // 1e245 + {0x32FD3CF5B4E49BB4, 0x92746B9BE2F8552C}, // 1e246 + {0x3FBC8C33221DC2A1, 0xB7118682DBB66A77}, // 1e247 + {0x0FABAF3FEAA5334A, 0xE4D5E82392A40515}, // 1e248 + {0x29CB4D87F2A7400E, 0x8F05B1163BA6832D}, // 1e249 + {0x743E20E9EF511012, 0xB2C71D5BCA9023F8}, // 1e250 + {0x914DA9246B255416, 0xDF78E4B2BD342CF6}, // 1e251 + {0x1AD089B6C2F7548E, 0x8BAB8EEFB6409C1A}, // 1e252 + {0xA184AC2473B529B1, 0xAE9672ABA3D0C320}, // 1e253 + {0xC9E5D72D90A2741E, 0xDA3C0F568CC4F3E8}, // 1e254 + {0x7E2FA67C7A658892, 0x8865899617FB1871}, // 1e255 + {0xDDBB901B98FEEAB7, 0xAA7EEBFB9DF9DE8D}, // 1e256 + {0x552A74227F3EA565, 0xD51EA6FA85785631}, // 1e257 + {0xD53A88958F87275F, 0x8533285C936B35DE}, // 1e258 + {0x8A892ABAF368F137, 0xA67FF273B8460356}, // 1e259 + {0x2D2B7569B0432D85, 0xD01FEF10A657842C}, // 1e260 + {0x9C3B29620E29FC73, 0x8213F56A67F6B29B}, // 1e261 + {0x8349F3BA91B47B8F, 0xA298F2C501F45F42}, // 1e262 + {0x241C70A936219A73, 0xCB3F2F7642717713}, // 1e263 + {0xED238CD383AA0110, 0xFE0EFB53D30DD4D7}, // 1e264 + {0xF4363804324A40AA, 0x9EC95D1463E8A506}, // 1e265 + {0xB143C6053EDCD0D5, 0xC67BB4597CE2CE48}, // 1e266 + {0xDD94B7868E94050A, 0xF81AA16FDC1B81DA}, // 1e267 + {0xCA7CF2B4191C8326, 0x9B10A4E5E9913128}, // 1e268 + {0xFD1C2F611F63A3F0, 0xC1D4CE1F63F57D72}, // 1e269 + {0xBC633B39673C8CEC, 0xF24A01A73CF2DCCF}, // 1e270 + {0xD5BE0503E085D813, 0x976E41088617CA01}, // 1e271 + {0x4B2D8644D8A74E18, 0xBD49D14AA79DBC82}, // 1e272 + {0xDDF8E7D60ED1219E, 0xEC9C459D51852BA2}, // 1e273 + {0xCABB90E5C942B503, 0x93E1AB8252F33B45}, // 1e274 + {0x3D6A751F3B936243, 0xB8DA1662E7B00A17}, // 1e275 + {0x0CC512670A783AD4, 0xE7109BFBA19C0C9D}, // 1e276 + {0x27FB2B80668B24C5, 0x906A617D450187E2}, // 1e277 + {0xB1F9F660802DEDF6, 0xB484F9DC9641E9DA}, // 1e278 + {0x5E7873F8A0396973, 0xE1A63853BBD26451}, // 1e279 + {0xDB0B487B6423E1E8, 0x8D07E33455637EB2}, // 1e280 + {0x91CE1A9A3D2CDA62, 0xB049DC016ABC5E5F}, // 1e281 + {0x7641A140CC7810FB, 0xDC5C5301C56B75F7}, // 1e282 + {0xA9E904C87FCB0A9D, 0x89B9B3E11B6329BA}, // 1e283 + {0x546345FA9FBDCD44, 0xAC2820D9623BF429}, // 1e284 + {0xA97C177947AD4095, 0xD732290FBACAF133}, // 1e285 + {0x49ED8EABCCCC485D, 0x867F59A9D4BED6C0}, // 1e286 + {0x5C68F256BFFF5A74, 0xA81F301449EE8C70}, // 1e287 + {0x73832EEC6FFF3111, 0xD226FC195C6A2F8C}, // 1e288 +}; + +// wuffs_private_impl__f64_powers_of_10 holds powers of 10 that can be exactly +// represented by a float64 (what C calls a double). +static const double wuffs_private_impl__f64_powers_of_10[23] = { + 1e0, 1e1, 1e2, 1e3, 1e4, 1e5, 1e6, 1e7, 1e8, 1e9, 1e10, 1e11, + 1e12, 1e13, 1e14, 1e15, 1e16, 1e17, 1e18, 1e19, 1e20, 1e21, 1e22, +}; + +// ---------------- IEEE 754 Floating Point + +WUFFS_BASE__MAYBE_STATIC wuffs_base__lossy_value_u16 // +wuffs_base__ieee_754_bit_representation__from_f64_to_u16_truncate(double f) { + uint64_t u = 0; + if (sizeof(uint64_t) == sizeof(double)) { + memcpy(&u, &f, sizeof(uint64_t)); + } + uint16_t neg = ((uint16_t)((u >> 63) << 15)); + u &= 0x7FFFFFFFFFFFFFFF; + uint64_t exp = u >> 52; + uint64_t man = u & 0x000FFFFFFFFFFFFF; + + if (exp == 0x7FF) { + if (man == 0) { // Infinity. + wuffs_base__lossy_value_u16 ret; + ret.value = neg | 0x7C00; + ret.lossy = false; + return ret; + } + // NaN. Shift the 52 mantissa bits to 10 mantissa bits, keeping the most + // significant mantissa bit (quiet vs signaling NaNs). Also set the low 9 + // bits of ret.value so that the 10-bit mantissa is non-zero. + wuffs_base__lossy_value_u16 ret; + ret.value = neg | 0x7DFF | ((uint16_t)(man >> 42)); + ret.lossy = false; + return ret; + + } else if (exp > 0x40E) { // Truncate to the largest finite f16. + wuffs_base__lossy_value_u16 ret; + ret.value = neg | 0x7BFF; + ret.lossy = true; + return ret; + + } else if (exp <= 0x3E6) { // Truncate to zero. + wuffs_base__lossy_value_u16 ret; + ret.value = neg; + ret.lossy = (u != 0); + return ret; + + } else if (exp <= 0x3F0) { // Normal f64, subnormal f16. + // Convert from a 53-bit mantissa (after realizing the implicit bit) to a + // 10-bit mantissa and then adjust for the exponent. + man |= 0x0010000000000000; + uint32_t shift = ((uint32_t)(1051 - exp)); // 1051 = 0x3F0 + 53 - 10. + uint64_t shifted_man = man >> shift; + wuffs_base__lossy_value_u16 ret; + ret.value = neg | ((uint16_t)shifted_man); + ret.lossy = (shifted_man << shift) != man; + return ret; + } + + // Normal f64, normal f16. + + // Re-bias from 1023 to 15 and shift above f16's 10 mantissa bits. + exp = (exp - 1008) << 10; // 1008 = 1023 - 15 = 0x3FF - 0xF. + + // Convert from a 52-bit mantissa (excluding the implicit bit) to a 10-bit + // mantissa (again excluding the implicit bit). We lose some information if + // any of the bottom 42 bits are non-zero. + wuffs_base__lossy_value_u16 ret; + ret.value = neg | ((uint16_t)exp) | ((uint16_t)(man >> 42)); + ret.lossy = (man << 22) != 0; + return ret; +} + +WUFFS_BASE__MAYBE_STATIC wuffs_base__lossy_value_u32 // +wuffs_base__ieee_754_bit_representation__from_f64_to_u32_truncate(double f) { + uint64_t u = 0; + if (sizeof(uint64_t) == sizeof(double)) { + memcpy(&u, &f, sizeof(uint64_t)); + } + uint32_t neg = ((uint32_t)(u >> 63)) << 31; + u &= 0x7FFFFFFFFFFFFFFF; + uint64_t exp = u >> 52; + uint64_t man = u & 0x000FFFFFFFFFFFFF; + + if (exp == 0x7FF) { + if (man == 0) { // Infinity. + wuffs_base__lossy_value_u32 ret; + ret.value = neg | 0x7F800000; + ret.lossy = false; + return ret; + } + // NaN. Shift the 52 mantissa bits to 23 mantissa bits, keeping the most + // significant mantissa bit (quiet vs signaling NaNs). Also set the low 22 + // bits of ret.value so that the 23-bit mantissa is non-zero. + wuffs_base__lossy_value_u32 ret; + ret.value = neg | 0x7FBFFFFF | ((uint32_t)(man >> 29)); + ret.lossy = false; + return ret; + + } else if (exp > 0x47E) { // Truncate to the largest finite f32. + wuffs_base__lossy_value_u32 ret; + ret.value = neg | 0x7F7FFFFF; + ret.lossy = true; + return ret; + + } else if (exp <= 0x369) { // Truncate to zero. + wuffs_base__lossy_value_u32 ret; + ret.value = neg; + ret.lossy = (u != 0); + return ret; + + } else if (exp <= 0x380) { // Normal f64, subnormal f32. + // Convert from a 53-bit mantissa (after realizing the implicit bit) to a + // 23-bit mantissa and then adjust for the exponent. + man |= 0x0010000000000000; + uint32_t shift = ((uint32_t)(926 - exp)); // 926 = 0x380 + 53 - 23. + uint64_t shifted_man = man >> shift; + wuffs_base__lossy_value_u32 ret; + ret.value = neg | ((uint32_t)shifted_man); + ret.lossy = (shifted_man << shift) != man; + return ret; + } + + // Normal f64, normal f32. + + // Re-bias from 1023 to 127 and shift above f32's 23 mantissa bits. + exp = (exp - 896) << 23; // 896 = 1023 - 127 = 0x3FF - 0x7F. + + // Convert from a 52-bit mantissa (excluding the implicit bit) to a 23-bit + // mantissa (again excluding the implicit bit). We lose some information if + // any of the bottom 29 bits are non-zero. + wuffs_base__lossy_value_u32 ret; + ret.value = neg | ((uint32_t)exp) | ((uint32_t)(man >> 29)); + ret.lossy = (man << 35) != 0; + return ret; +} + +// -------- + +#define WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE 2047 +#define WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION 800 + +// WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL is the largest N such that +// ((10 << N) < (1 << 64)). +#define WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL 60 + +// wuffs_private_impl__high_prec_dec (abbreviated as HPD) is a fixed precision +// floating point decimal number, augmented with ±infinity values, but it +// cannot represent NaN (Not a Number). +// +// "High precision" means that the mantissa holds 800 decimal digits. 800 is +// WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION. +// +// An HPD isn't for general purpose arithmetic, only for conversions to and +// from IEEE 754 double-precision floating point, where the largest and +// smallest positive, finite values are approximately 1.8e+308 and 4.9e-324. +// HPD exponents above +2047 mean infinity, below -2047 mean zero. The ±2047 +// bounds are further away from zero than ±(324 + 800), where 800 and 2047 is +// WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION and +// WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE. +// +// digits[.. num_digits] are the number's digits in big-endian order. The +// uint8_t values are in the range [0 ..= 9], not ['0' ..= '9'], where e.g. '7' +// is the ASCII value 0x37. +// +// decimal_point is the index (within digits) of the decimal point. It may be +// negative or be larger than num_digits, in which case the explicit digits are +// padded with implicit zeroes. +// +// For example, if num_digits is 3 and digits is "\x07\x08\x09": +// - A decimal_point of -2 means ".00789" +// - A decimal_point of -1 means ".0789" +// - A decimal_point of +0 means ".789" +// - A decimal_point of +1 means "7.89" +// - A decimal_point of +2 means "78.9" +// - A decimal_point of +3 means "789." +// - A decimal_point of +4 means "7890." +// - A decimal_point of +5 means "78900." +// +// As above, a decimal_point higher than +2047 means that the overall value is +// infinity, lower than -2047 means zero. +// +// negative is a sign bit. An HPD can distinguish positive and negative zero. +// +// truncated is whether there are more than +// WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION digits, and at least one of those +// extra digits are non-zero. The existence of long-tail digits can affect +// rounding. +// +// The "all fields are zero" value is valid, and represents the number +0. +typedef struct wuffs_private_impl__high_prec_dec__struct { + uint32_t num_digits; + int32_t decimal_point; + bool negative; + bool truncated; + uint8_t digits[WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION]; +} wuffs_private_impl__high_prec_dec; + +// wuffs_private_impl__high_prec_dec__trim trims trailing zeroes from the +// h->digits[.. h->num_digits] slice. They have no benefit, since we explicitly +// track h->decimal_point. +// +// Preconditions: +// - h is non-NULL. +static inline void // +wuffs_private_impl__high_prec_dec__trim(wuffs_private_impl__high_prec_dec* h) { + while ((h->num_digits > 0) && (h->digits[h->num_digits - 1] == 0)) { + h->num_digits--; + } +} + +// wuffs_private_impl__high_prec_dec__assign sets h to represent the number x. +// +// Preconditions: +// - h is non-NULL. +static void // +wuffs_private_impl__high_prec_dec__assign(wuffs_private_impl__high_prec_dec* h, + uint64_t x, + bool negative) { + uint32_t n = 0; + + // Set h->digits. + if (x > 0) { + // Calculate the digits, working right-to-left. After we determine n (how + // many digits there are), copy from buf to h->digits. + // + // UINT64_MAX, 18446744073709551615, is 20 digits long. It can be faster to + // copy a constant number of bytes than a variable number (20 instead of + // n). Make buf large enough (and start writing to it from the middle) so + // that can we always copy 20 bytes: the slice buf[(20-n) .. (40-n)]. + uint8_t buf[40] = {0}; + uint8_t* ptr = &buf[20]; + do { + uint64_t remaining = x / 10; + x -= remaining * 10; + ptr--; + *ptr = (uint8_t)x; + n++; + x = remaining; + } while (x > 0); + memcpy(h->digits, ptr, 20); + } + + // Set h's other fields. + h->num_digits = n; + h->decimal_point = (int32_t)n; + h->negative = negative; + h->truncated = false; + wuffs_private_impl__high_prec_dec__trim(h); +} + +static wuffs_base__status // +wuffs_private_impl__high_prec_dec__parse(wuffs_private_impl__high_prec_dec* h, + wuffs_base__slice_u8 s, + uint32_t options) { + if (!h) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + h->num_digits = 0; + h->decimal_point = 0; + h->negative = false; + h->truncated = false; + + uint8_t* p = s.ptr; + uint8_t* q = s.ptr + s.len; + + if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { + for (;; p++) { + if (p >= q) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } else if (*p != '_') { + break; + } + } + } + + // Parse sign. + do { + if (*p == '+') { + p++; + } else if (*p == '-') { + h->negative = true; + p++; + } else { + break; + } + if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { + for (;; p++) { + if (p >= q) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } else if (*p != '_') { + break; + } + } + } + } while (0); + + // Parse digits, up to (and including) a '.', 'E' or 'e'. Examples for each + // limb in this if-else chain: + // - "0.789" + // - "1002.789" + // - ".789" + // - Other (invalid input). + uint32_t nd = 0; + int32_t dp = 0; + bool no_digits_before_separator = false; + if (('0' == *p) && + !(options & + WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_MULTIPLE_LEADING_ZEROES)) { + p++; + for (;; p++) { + if (p >= q) { + goto after_all; + } else if (*p == + ((options & + WUFFS_BASE__PARSE_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) + ? ',' + : '.')) { + p++; + goto after_sep; + } else if ((*p == 'E') || (*p == 'e')) { + p++; + goto after_exp; + } else if ((*p != '_') || + !(options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + } + + } else if (('0' <= *p) && (*p <= '9')) { + if (*p == '0') { + for (; (p < q) && (*p == '0'); p++) { + } + } else { + h->digits[nd++] = (uint8_t)(*p - '0'); + dp = (int32_t)nd; + p++; + } + + for (;; p++) { + if (p >= q) { + goto after_all; + } else if (('0' <= *p) && (*p <= '9')) { + if (nd < WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) { + h->digits[nd++] = (uint8_t)(*p - '0'); + dp = (int32_t)nd; + } else if ('0' != *p) { + // Long-tail non-zeroes set the truncated bit. + h->truncated = true; + } + } else if (*p == + ((options & + WUFFS_BASE__PARSE_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) + ? ',' + : '.')) { + p++; + goto after_sep; + } else if ((*p == 'E') || (*p == 'e')) { + p++; + goto after_exp; + } else if ((*p != '_') || + !(options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + } + + } else if (*p == ((options & + WUFFS_BASE__PARSE_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) + ? ',' + : '.')) { + p++; + no_digits_before_separator = true; + + } else { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + +after_sep: + for (;; p++) { + if (p >= q) { + goto after_all; + } else if ('0' == *p) { + if (nd == 0) { + // Track leading zeroes implicitly. + dp--; + } else if (nd < WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) { + h->digits[nd++] = (uint8_t)(*p - '0'); + } + } else if (('0' < *p) && (*p <= '9')) { + if (nd < WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) { + h->digits[nd++] = (uint8_t)(*p - '0'); + } else { + // Long-tail non-zeroes set the truncated bit. + h->truncated = true; + } + } else if ((*p == 'E') || (*p == 'e')) { + p++; + goto after_exp; + } else if ((*p != '_') || + !(options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + } + +after_exp: + do { + if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { + for (;; p++) { + if (p >= q) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } else if (*p != '_') { + break; + } + } + } + + int32_t exp_sign = +1; + if (*p == '+') { + p++; + } else if (*p == '-') { + exp_sign = -1; + p++; + } + + int32_t exp = 0; + const int32_t exp_large = WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE + + WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION; + bool saw_exp_digits = false; + for (; p < q; p++) { + if ((*p == '_') && + (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { + // No-op. + } else if (('0' <= *p) && (*p <= '9')) { + saw_exp_digits = true; + if (exp < exp_large) { + exp = (10 * exp) + ((int32_t)(*p - '0')); + } + } else { + break; + } + } + if (!saw_exp_digits) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + dp += exp_sign * exp; + } while (0); + +after_all: + if (p != q) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + h->num_digits = nd; + if (nd == 0) { + if (no_digits_before_separator) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + h->decimal_point = 0; + } else if (dp < -WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE) { + h->decimal_point = -WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE - 1; + } else if (dp > +WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE) { + h->decimal_point = +WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE + 1; + } else { + h->decimal_point = dp; + } + wuffs_private_impl__high_prec_dec__trim(h); + return wuffs_base__make_status(NULL); +} + +// -------- + +// wuffs_private_impl__high_prec_dec__lshift_num_new_digits returns the number +// of additional decimal digits when left-shifting by shift. +// +// See below for preconditions. +static uint32_t // +wuffs_private_impl__high_prec_dec__lshift_num_new_digits( + wuffs_private_impl__high_prec_dec* h, + uint32_t shift) { + // Masking with 0x3F should be unnecessary (assuming the preconditions) but + // it's cheap and ensures that we don't overflow the + // wuffs_private_impl__hpd_left_shift array. + shift &= 63; + + uint32_t x_a = wuffs_private_impl__hpd_left_shift[shift]; + uint32_t x_b = wuffs_private_impl__hpd_left_shift[shift + 1]; + uint32_t num_new_digits = x_a >> 11; + uint32_t pow5_a = 0x7FF & x_a; + uint32_t pow5_b = 0x7FF & x_b; + + const uint8_t* pow5 = &wuffs_private_impl__powers_of_5[pow5_a]; + uint32_t i = 0; + uint32_t n = pow5_b - pow5_a; + for (; i < n; i++) { + if (i >= h->num_digits) { + return num_new_digits - 1; + } else if (h->digits[i] == pow5[i]) { + continue; + } else if (h->digits[i] < pow5[i]) { + return num_new_digits - 1; + } else { + return num_new_digits; + } + } + return num_new_digits; +} + +// -------- + +// wuffs_private_impl__high_prec_dec__rounded_integer returns the integral +// (non-fractional) part of h, provided that it is 18 or fewer decimal digits. +// For 19 or more digits, it returns UINT64_MAX. Note that: +// - (1 << 53) is 9007199254740992, which has 16 decimal digits. +// - (1 << 56) is 72057594037927936, which has 17 decimal digits. +// - (1 << 59) is 576460752303423488, which has 18 decimal digits. +// - (1 << 63) is 9223372036854775808, which has 19 decimal digits. +// and that IEEE 754 double precision has 52 mantissa bits. +// +// That integral part is rounded-to-even: rounding 7.5 or 8.5 both give 8. +// +// h's negative bit is ignored: rounding -8.6 returns 9. +// +// See below for preconditions. +static uint64_t // +wuffs_private_impl__high_prec_dec__rounded_integer( + wuffs_private_impl__high_prec_dec* h) { + if ((h->num_digits == 0) || (h->decimal_point < 0)) { + return 0; + } else if (h->decimal_point > 18) { + return UINT64_MAX; + } + + uint32_t dp = (uint32_t)(h->decimal_point); + uint64_t n = 0; + uint32_t i = 0; + for (; i < dp; i++) { + n = (10 * n) + ((i < h->num_digits) ? h->digits[i] : 0); + } + + bool round_up = false; + if (dp < h->num_digits) { + round_up = h->digits[dp] >= 5; + if ((h->digits[dp] == 5) && (dp + 1 == h->num_digits)) { + // We are exactly halfway. If we're truncated, round up, otherwise round + // to even. + round_up = h->truncated || // + ((dp > 0) && (1 & h->digits[dp - 1])); + } + } + if (round_up) { + n++; + } + + return n; +} + +// wuffs_private_impl__high_prec_dec__small_xshift shifts h's number (where 'x' +// is 'l' or 'r' for left or right) by a small shift value. +// +// Preconditions: +// - h is non-NULL. +// - h->decimal_point is "not extreme". +// - shift is non-zero. +// - shift is "a small shift". +// +// "Not extreme" means within ±WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE. +// +// "A small shift" means not more than +// WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL. +// +// wuffs_private_impl__high_prec_dec__rounded_integer and +// wuffs_private_impl__high_prec_dec__lshift_num_new_digits have the same +// preconditions. +// +// wuffs_private_impl__high_prec_dec__lshift keeps the first two preconditions +// but not the last two. Its shift argument is signed and does not need to be +// "small": zero is a no-op, positive means left shift and negative means right +// shift. + +static void // +wuffs_private_impl__high_prec_dec__small_lshift( + wuffs_private_impl__high_prec_dec* h, + uint32_t shift) { + if (h->num_digits == 0) { + return; + } + uint32_t num_new_digits = + wuffs_private_impl__high_prec_dec__lshift_num_new_digits(h, shift); + uint32_t rx = h->num_digits - 1; // Read index. + uint32_t wx = h->num_digits - 1 + num_new_digits; // Write index. + uint64_t n = 0; + + // Repeat: pick up a digit, put down a digit, right to left. + while (((int32_t)rx) >= 0) { + n += ((uint64_t)(h->digits[rx])) << shift; + uint64_t quo = n / 10; + uint64_t rem = n - (10 * quo); + if (wx < WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) { + h->digits[wx] = (uint8_t)rem; + } else if (rem > 0) { + h->truncated = true; + } + n = quo; + wx--; + rx--; + } + + // Put down leading digits, right to left. + while (n > 0) { + uint64_t quo = n / 10; + uint64_t rem = n - (10 * quo); + if (wx < WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) { + h->digits[wx] = (uint8_t)rem; + } else if (rem > 0) { + h->truncated = true; + } + n = quo; + wx--; + } + + // Finish. + h->num_digits += num_new_digits; + if (h->num_digits > WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) { + h->num_digits = WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION; + } + h->decimal_point += (int32_t)num_new_digits; + wuffs_private_impl__high_prec_dec__trim(h); +} + +static void // +wuffs_private_impl__high_prec_dec__small_rshift( + wuffs_private_impl__high_prec_dec* h, + uint32_t shift) { + uint32_t rx = 0; // Read index. + uint32_t wx = 0; // Write index. + uint64_t n = 0; + + // Pick up enough leading digits to cover the first shift. + while ((n >> shift) == 0) { + if (rx < h->num_digits) { + // Read a digit. + n = (10 * n) + h->digits[rx++]; + } else if (n == 0) { + // h's number used to be zero and remains zero. + return; + } else { + // Read sufficient implicit trailing zeroes. + while ((n >> shift) == 0) { + n = 10 * n; + rx++; + } + break; + } + } + h->decimal_point -= ((int32_t)(rx - 1)); + if (h->decimal_point < -WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE) { + // After the shift, h's number is effectively zero. + h->num_digits = 0; + h->decimal_point = 0; + h->truncated = false; + return; + } + + // Repeat: pick up a digit, put down a digit, left to right. + uint64_t mask = (((uint64_t)(1)) << shift) - 1; + while (rx < h->num_digits) { + uint8_t new_digit = ((uint8_t)(n >> shift)); + n = (10 * (n & mask)) + h->digits[rx++]; + h->digits[wx++] = new_digit; + } + + // Put down trailing digits, left to right. + while (n > 0) { + uint8_t new_digit = ((uint8_t)(n >> shift)); + n = 10 * (n & mask); + if (wx < WUFFS_PRIVATE_IMPL__HPD__DIGITS_PRECISION) { + h->digits[wx++] = new_digit; + } else if (new_digit > 0) { + h->truncated = true; + } + } + + // Finish. + h->num_digits = wx; + wuffs_private_impl__high_prec_dec__trim(h); +} + +static void // +wuffs_private_impl__high_prec_dec__lshift(wuffs_private_impl__high_prec_dec* h, + int32_t shift) { + if (shift > 0) { + while (shift > +WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL) { + wuffs_private_impl__high_prec_dec__small_lshift( + h, WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL); + shift -= WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL; + } + wuffs_private_impl__high_prec_dec__small_lshift(h, ((uint32_t)(+shift))); + } else if (shift < 0) { + while (shift < -WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL) { + wuffs_private_impl__high_prec_dec__small_rshift( + h, WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL); + shift += WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL; + } + wuffs_private_impl__high_prec_dec__small_rshift(h, ((uint32_t)(-shift))); + } +} + +// -------- + +// wuffs_private_impl__high_prec_dec__round_etc rounds h's number. For those +// functions that take an n argument, rounding produces at most n digits (which +// is not necessarily at most n decimal places). Negative n values are ignored, +// as well as any n greater than or equal to h's number of digits. The +// etc__round_just_enough function implicitly chooses an n to implement +// WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION. +// +// Preconditions: +// - h is non-NULL. +// - h->decimal_point is "not extreme". +// +// "Not extreme" means within ±WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE. + +static void // +wuffs_private_impl__high_prec_dec__round_down( + wuffs_private_impl__high_prec_dec* h, + int32_t n) { + if ((n < 0) || (h->num_digits <= (uint32_t)n)) { + return; + } + h->num_digits = (uint32_t)(n); + wuffs_private_impl__high_prec_dec__trim(h); +} + +static void // +wuffs_private_impl__high_prec_dec__round_up( + wuffs_private_impl__high_prec_dec* h, + int32_t n) { + if ((n < 0) || (h->num_digits <= (uint32_t)n)) { + return; + } + + for (n--; n >= 0; n--) { + if (h->digits[n] < 9) { + h->digits[n]++; + h->num_digits = (uint32_t)(n + 1); + return; + } + } + + // The number is all 9s. Change to a single 1 and adjust the decimal point. + h->digits[0] = 1; + h->num_digits = 1; + h->decimal_point++; +} + +static void // +wuffs_private_impl__high_prec_dec__round_nearest( + wuffs_private_impl__high_prec_dec* h, + int32_t n) { + if ((n < 0) || (h->num_digits <= (uint32_t)n)) { + return; + } + bool up = h->digits[n] >= 5; + if ((h->digits[n] == 5) && ((n + 1) == ((int32_t)(h->num_digits)))) { + up = h->truncated || // + ((n > 0) && ((h->digits[n - 1] & 1) != 0)); + } + + if (up) { + wuffs_private_impl__high_prec_dec__round_up(h, n); + } else { + wuffs_private_impl__high_prec_dec__round_down(h, n); + } +} + +static void // +wuffs_private_impl__high_prec_dec__round_just_enough( + wuffs_private_impl__high_prec_dec* h, + int32_t exp2, + uint64_t mantissa) { + // The magic numbers 52 and 53 in this function are because IEEE 754 double + // precision has 52 mantissa bits. + // + // Let f be the floating point number represented by exp2 and mantissa (and + // also the number in h): the number (mantissa * (2 ** (exp2 - 52))). + // + // If f is zero or a small integer, we can return early. + if ((mantissa == 0) || + ((exp2 < 53) && (h->decimal_point >= ((int32_t)(h->num_digits))))) { + return; + } + + // The smallest normal f has an exp2 of -1022 and a mantissa of (1 << 52). + // Subnormal numbers have the same exp2 but a smaller mantissa. + static const int32_t min_incl_normal_exp2 = -1022; + static const uint64_t min_incl_normal_mantissa = 0x0010000000000000ul; + + // Compute lower and upper bounds such that any number between them (possibly + // inclusive) will round to f. First, the lower bound. Our number f is: + // ((mantissa + 0) * (2 ** ( exp2 - 52))) + // + // The next lowest floating point number is: + // ((mantissa - 1) * (2 ** ( exp2 - 52))) + // unless (mantissa - 1) drops the (1 << 52) bit and exp2 is not the + // min_incl_normal_exp2. Either way, call it: + // ((l_mantissa) * (2 ** (l_exp2 - 52))) + // + // The lower bound is halfway between them (noting that 52 became 53): + // (((2 * l_mantissa) + 1) * (2 ** (l_exp2 - 53))) + int32_t l_exp2 = exp2; + uint64_t l_mantissa = mantissa - 1; + if ((exp2 > min_incl_normal_exp2) && (mantissa <= min_incl_normal_mantissa)) { + l_exp2 = exp2 - 1; + l_mantissa = (2 * mantissa) - 1; + } + wuffs_private_impl__high_prec_dec lower; + wuffs_private_impl__high_prec_dec__assign(&lower, (2 * l_mantissa) + 1, + false); + wuffs_private_impl__high_prec_dec__lshift(&lower, l_exp2 - 53); + + // Next, the upper bound. Our number f is: + // ((mantissa + 0) * (2 ** (exp2 - 52))) + // + // The next highest floating point number is: + // ((mantissa + 1) * (2 ** (exp2 - 52))) + // + // The upper bound is halfway between them (noting that 52 became 53): + // (((2 * mantissa) + 1) * (2 ** (exp2 - 53))) + wuffs_private_impl__high_prec_dec upper; + wuffs_private_impl__high_prec_dec__assign(&upper, (2 * mantissa) + 1, false); + wuffs_private_impl__high_prec_dec__lshift(&upper, exp2 - 53); + + // The lower and upper bounds are possible outputs only if the original + // mantissa is even, so that IEEE round-to-even would round to the original + // mantissa and not its neighbors. + bool inclusive = (mantissa & 1) == 0; + + // As we walk the digits, we want to know whether rounding up would fall + // within the upper bound. This is tracked by upper_delta: + // - When -1, the digits of h and upper are the same so far. + // - When +0, we saw a difference of 1 between h and upper on a previous + // digit and subsequently only 9s for h and 0s for upper. Thus, rounding + // up may fall outside of the bound if !inclusive. + // - When +1, the difference is greater than 1 and we know that rounding up + // falls within the bound. + // + // This is a state machine with three states. The numerical value for each + // state (-1, +0 or +1) isn't important, other than their order. + int upper_delta = -1; + + // We can now figure out the shortest number of digits required. Walk the + // digits until h has distinguished itself from lower or upper. + // + // The zi and zd variables are indexes and digits, for z in l (lower), h (the + // number) and u (upper). + // + // The lower, h and upper numbers may have their decimal points at different + // places. In this case, upper is the longest, so we iterate ui starting from + // 0 and iterate li and hi starting from either 0 or -1. + int32_t ui = 0; + for (;; ui++) { + // Calculate hd, the middle number's digit. + int32_t hi = ui - upper.decimal_point + h->decimal_point; + if (hi >= ((int32_t)(h->num_digits))) { + break; + } + uint8_t hd = (((uint32_t)hi) < h->num_digits) ? h->digits[hi] : 0; + + // Calculate ld, the lower bound's digit. + int32_t li = ui - upper.decimal_point + lower.decimal_point; + uint8_t ld = (((uint32_t)li) < lower.num_digits) ? lower.digits[li] : 0; + + // We can round down (truncate) if lower has a different digit than h or if + // lower is inclusive and is exactly the result of rounding down (i.e. we + // have reached the final digit of lower). + bool can_round_down = + (ld != hd) || // + (inclusive && ((li + 1) == ((int32_t)(lower.num_digits)))); + + // Calculate ud, the upper bound's digit, and update upper_delta. + uint8_t ud = (((uint32_t)ui) < upper.num_digits) ? upper.digits[ui] : 0; + if (upper_delta < 0) { + if ((hd + 1) < ud) { + // For example: + // h = 12345??? + // upper = 12347??? + upper_delta = +1; + } else if (hd != ud) { + // For example: + // h = 12345??? + // upper = 12346??? + upper_delta = +0; + } + } else if (upper_delta == 0) { + if ((hd != 9) || (ud != 0)) { + // For example: + // h = 1234598? + // upper = 1234600? + upper_delta = +1; + } + } + + // We can round up if upper has a different digit than h and either upper + // is inclusive or upper is bigger than the result of rounding up. + bool can_round_up = + (upper_delta > 0) || // + ((upper_delta == 0) && // + (inclusive || ((ui + 1) < ((int32_t)(upper.num_digits))))); + + // If we can round either way, round to nearest. If we can round only one + // way, do it. If we can't round, continue the loop. + if (can_round_down) { + if (can_round_up) { + wuffs_private_impl__high_prec_dec__round_nearest(h, hi + 1); + return; + } else { + wuffs_private_impl__high_prec_dec__round_down(h, hi + 1); + return; + } + } else { + if (can_round_up) { + wuffs_private_impl__high_prec_dec__round_up(h, hi + 1); + return; + } + } + } +} + +// -------- + +// wuffs_private_impl__parse_number_f64_eisel_lemire produces the IEEE 754 +// double-precision value for an exact mantissa and base-10 exponent. For +// example: +// - when parsing "12345.678e+02", man is 12345678 and exp10 is -1. +// - when parsing "-12", man is 12 and exp10 is 0. Processing the leading +// minus sign is the responsibility of the caller, not this function. +// +// On success, it returns a non-negative int64_t such that the low 63 bits hold +// the 11-bit exponent and 52-bit mantissa. +// +// On failure, it returns a negative value. +// +// The algorithm is based on an original idea by Michael Eisel that was refined +// by Daniel Lemire. See +// https://lemire.me/blog/2020/03/10/fast-float-parsing-in-practice/ +// and +// https://nigeltao.github.io/blog/2020/eisel-lemire.html +// +// Preconditions: +// - man is non-zero. +// - exp10 is in the range [-307 ..= 288], the same range of the +// wuffs_private_impl__powers_of_10 array. +// +// The exp10 range (and the fact that man is in the range [1 ..= UINT64_MAX], +// approximately [1 ..= 1.85e+19]) means that (man * (10 ** exp10)) is in the +// range [1e-307 ..= 1.85e+307]. This is entirely within the range of normal +// (neither subnormal nor non-finite) f64 values: DBL_MIN and DBL_MAX are +// approximately 2.23e–308 and 1.80e+308. +static int64_t // +wuffs_private_impl__parse_number_f64_eisel_lemire(uint64_t man, int32_t exp10) { + // Look up the (possibly truncated) base-2 representation of (10 ** exp10). + // The look-up table was constructed so that it is already normalized: the + // table entry's mantissa's MSB (most significant bit) is on. + const uint64_t* po10 = &wuffs_private_impl__powers_of_10[exp10 + 307][0]; + + // Normalize the man argument. The (man != 0) precondition means that a + // non-zero bit exists. + uint32_t clz = wuffs_base__count_leading_zeroes_u64(man); + man <<= clz; + + // Calculate the return value's base-2 exponent. We might tweak it by ±1 + // later, but its initial value comes from a linear scaling of exp10, + // converting from power-of-10 to power-of-2, and adjusting by clz. + // + // The magic constants are: + // - 1087 = 1023 + 64. The 1023 is the f64 exponent bias. The 64 is because + // the look-up table uses 64-bit mantissas. + // - 217706 is such that the ratio 217706 / 65536 ≈ 3.321930 is close enough + // (over the practical range of exp10) to log(10) / log(2) ≈ 3.321928. + // - 65536 = 1<<16 is arbitrary but a power of 2, so division is a shift. + // + // Equality of the linearly-scaled value and the actual power-of-2, over the + // range of exp10 arguments that this function accepts, is confirmed by + // script/print-mpb-powers-of-10.go + uint64_t ret_exp2 = + ((uint64_t)(((217706 * exp10) >> 16) + 1087)) - ((uint64_t)clz); + + // Multiply the two mantissas. Normalization means that both mantissas are at + // least (1<<63), so the 128-bit product must be at least (1<<126). The high + // 64 bits of the product, x_hi, must therefore be at least (1<<62). + // + // As a consequence, x_hi has either 0 or 1 leading zeroes. Shifting x_hi + // right by either 9 or 10 bits (depending on x_hi's MSB) will therefore + // leave the top 10 MSBs (bits 54 ..= 63) off and the 11th MSB (bit 53) on. + wuffs_base__multiply_u64__output x = wuffs_base__multiply_u64(man, po10[1]); + uint64_t x_hi = x.hi; + uint64_t x_lo = x.lo; + + // Before we shift right by at least 9 bits, recall that the look-up table + // entry was possibly truncated. We have so far only calculated a lower bound + // for the product (man * e), where e is (10 ** exp10). The upper bound would + // add a further (man * 1) to the 128-bit product, which overflows the lower + // 64-bit limb if ((x_lo + man) < man). + // + // If overflow occurs, that adds 1 to x_hi. Since we're about to shift right + // by at least 9 bits, that carried 1 can be ignored unless the higher 64-bit + // limb's low 9 bits are all on. + // + // For example, parsing "9999999999999999999" will take the if-true branch + // here, since: + // - x_hi = 0x4563918244F3FFFF + // - x_lo = 0x8000000000000000 + // - man = 0x8AC7230489E7FFFF + if (((x_hi & 0x1FF) == 0x1FF) && ((x_lo + man) < man)) { + // Refine our calculation of (man * e). Before, our approximation of e used + // a "low resolution" 64-bit mantissa. Now use a "high resolution" 128-bit + // mantissa. We've already calculated x = (man * bits_0_to_63_incl_of_e). + // Now calculate y = (man * bits_64_to_127_incl_of_e). + wuffs_base__multiply_u64__output y = wuffs_base__multiply_u64(man, po10[0]); + uint64_t y_hi = y.hi; + uint64_t y_lo = y.lo; + + // Merge the 128-bit x and 128-bit y, which overlap by 64 bits, to + // calculate the 192-bit product of the 64-bit man by the 128-bit e. + // As we exit this if-block, we only care about the high 128 bits + // (merged_hi and merged_lo) of that 192-bit product. + // + // For example, parsing "1.234e-45" will take the if-true branch here, + // since: + // - x_hi = 0x70B7E3696DB29FFF + // - x_lo = 0xE040000000000000 + // - y_hi = 0x33718BBEAB0E0D7A + // - y_lo = 0xA880000000000000 + uint64_t merged_hi = x_hi; + uint64_t merged_lo = x_lo + y_hi; + if (merged_lo < x_lo) { + merged_hi++; // Carry the overflow bit. + } + + // The "high resolution" approximation of e is still a lower bound. Once + // again, see if the upper bound is large enough to produce a different + // result. This time, if it does, give up instead of reaching for an even + // more precise approximation to e. + // + // This three-part check is similar to the two-part check that guarded the + // if block that we're now in, but it has an extra term for the middle 64 + // bits (checking that adding 1 to merged_lo would overflow). + // + // For example, parsing "5.9604644775390625e-8" will take the if-true + // branch here, since: + // - merged_hi = 0x7FFFFFFFFFFFFFFF + // - merged_lo = 0xFFFFFFFFFFFFFFFF + // - y_lo = 0x4DB3FFC120988200 + // - man = 0xD3C21BCECCEDA100 + if (((merged_hi & 0x1FF) == 0x1FF) && ((merged_lo + 1) == 0) && + (y_lo + man < man)) { + return -1; + } + + // Replace the 128-bit x with merged. + x_hi = merged_hi; + x_lo = merged_lo; + } + + // As mentioned above, shifting x_hi right by either 9 or 10 bits will leave + // the top 10 MSBs (bits 54 ..= 63) off and the 11th MSB (bit 53) on. If the + // MSB (before shifting) was on, adjust ret_exp2 for the larger shift. + // + // Having bit 53 on (and higher bits off) means that ret_mantissa is a 54-bit + // number. + uint64_t msb = x_hi >> 63; + uint64_t ret_mantissa = x_hi >> (msb + 9); + ret_exp2 -= 1 ^ msb; + + // IEEE 754 rounds to-nearest with ties rounded to-even. Rounding to-even can + // be tricky. If we're half-way between two exactly representable numbers + // (x's low 73 bits are zero and the next 2 bits that matter are "01"), give + // up instead of trying to pick the winner. + // + // Technically, we could tighten the condition by changing "73" to "73 or 74, + // depending on msb", but a flat "73" is simpler. + // + // For example, parsing "1e+23" will take the if-true branch here, since: + // - x_hi = 0x54B40B1F852BDA00 + // - ret_mantissa = 0x002A5A058FC295ED + if ((x_lo == 0) && ((x_hi & 0x1FF) == 0) && ((ret_mantissa & 3) == 1)) { + return -1; + } + + // If we're not halfway then it's rounding to-nearest. Starting with a 54-bit + // number, carry the lowest bit (bit 0) up if it's on. Regardless of whether + // it was on or off, shifting right by one then produces a 53-bit number. If + // carrying up overflowed, shift again. + ret_mantissa += ret_mantissa & 1; + ret_mantissa >>= 1; + // This if block is equivalent to (but benchmarks slightly faster than) the + // following branchless form: + // uint64_t overflow_adjustment = ret_mantissa >> 53; + // ret_mantissa >>= overflow_adjustment; + // ret_exp2 += overflow_adjustment; + // + // For example, parsing "7.2057594037927933e+16" will take the if-true + // branch here, since: + // - x_hi = 0x7FFFFFFFFFFFFE80 + // - ret_mantissa = 0x0020000000000000 + if ((ret_mantissa >> 53) > 0) { + ret_mantissa >>= 1; + ret_exp2++; + } + + // Starting with a 53-bit number, IEEE 754 double-precision normal numbers + // have an implicit mantissa bit. Mask that away and keep the low 52 bits. + ret_mantissa &= 0x000FFFFFFFFFFFFF; + + // Pack the bits and return. + return ((int64_t)(ret_mantissa | (ret_exp2 << 52))); +} + +// -------- + +static wuffs_base__result_f64 // +wuffs_private_impl__parse_number_f64_special(wuffs_base__slice_u8 s, + uint32_t options) { + do { + if (options & WUFFS_BASE__PARSE_NUMBER_FXX__REJECT_INF_AND_NAN) { + goto fail; + } + + uint8_t* p = s.ptr; + uint8_t* q = s.ptr + s.len; + + for (; (p < q) && (*p == '_'); p++) { + } + if (p >= q) { + goto fail; + } + + // Parse sign. + bool negative = false; + do { + if (*p == '+') { + p++; + } else if (*p == '-') { + negative = true; + p++; + } else { + break; + } + for (; (p < q) && (*p == '_'); p++) { + } + } while (0); + if (p >= q) { + goto fail; + } + + bool nan = false; + switch (p[0]) { + case 'I': + case 'i': + if (((q - p) < 3) || // + ((p[1] != 'N') && (p[1] != 'n')) || // + ((p[2] != 'F') && (p[2] != 'f'))) { + goto fail; + } + p += 3; + + if ((p >= q) || (*p == '_')) { + break; + } else if (((q - p) < 5) || // + ((p[0] != 'I') && (p[0] != 'i')) || // + ((p[1] != 'N') && (p[1] != 'n')) || // + ((p[2] != 'I') && (p[2] != 'i')) || // + ((p[3] != 'T') && (p[3] != 't')) || // + ((p[4] != 'Y') && (p[4] != 'y'))) { + goto fail; + } + p += 5; + + if ((p >= q) || (*p == '_')) { + break; + } + goto fail; + + case 'N': + case 'n': + if (((q - p) < 3) || // + ((p[1] != 'A') && (p[1] != 'a')) || // + ((p[2] != 'N') && (p[2] != 'n'))) { + goto fail; + } + p += 3; + + if ((p >= q) || (*p == '_')) { + nan = true; + break; + } + goto fail; + + default: + goto fail; + } + + // Finish. + for (; (p < q) && (*p == '_'); p++) { + } + if (p != q) { + goto fail; + } + wuffs_base__result_f64 ret; + ret.status.repr = NULL; + ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64( + (nan ? 0x7FFFFFFFFFFFFFFF : 0x7FF0000000000000) | + (negative ? 0x8000000000000000 : 0)); + return ret; + } while (0); + +fail: + do { + wuffs_base__result_f64 ret; + ret.status.repr = wuffs_base__error__bad_argument; + ret.value = 0; + return ret; + } while (0); +} + +WUFFS_BASE__MAYBE_STATIC wuffs_base__result_f64 // +wuffs_private_impl__high_prec_dec__to_f64(wuffs_private_impl__high_prec_dec* h, + uint32_t options) { + do { + // powers converts decimal powers of 10 to binary powers of 2. For example, + // (10000 >> 13) is 1. It stops before the elements exceed 60, also known + // as WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL. + // + // This rounds down (1<<13 is a lower bound for 1e4). Adding 1 to the array + // element value rounds up (1<<14 is an upper bound for 1e4) while staying + // at or below WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL. + // + // When starting in the range [1e+1 .. 1e+2] (i.e. h->decimal_point == +2), + // powers[2] == 6 and so: + // - Right shifting by 6+0 produces the range [10/64 .. 100/64] = + // [0.156250 .. 1.56250]. The resultant h->decimal_point is +0 or +1. + // - Right shifting by 6+1 produces the range [10/128 .. 100/128] = + // [0.078125 .. 0.78125]. The resultant h->decimal_point is -1 or -0. + // + // When starting in the range [1e-3 .. 1e-2] (i.e. h->decimal_point == -2), + // powers[2] == 6 and so: + // - Left shifting by 6+0 produces the range [0.001*64 .. 0.01*64] = + // [0.064 .. 0.64]. The resultant h->decimal_point is -1 or -0. + // - Left shifting by 6+1 produces the range [0.001*128 .. 0.01*128] = + // [0.128 .. 1.28]. The resultant h->decimal_point is +0 or +1. + // + // Thus, when targeting h->decimal_point being +0 or +1, use (powers[n]+0) + // when right shifting but (powers[n]+1) when left shifting. + static const uint32_t num_powers = 19; + static const uint8_t powers[19] = { + 0, 3, 6, 9, 13, 16, 19, 23, 26, 29, // + 33, 36, 39, 43, 46, 49, 53, 56, 59, // + }; + + // Handle zero and obvious extremes. The largest and smallest positive + // finite f64 values are approximately 1.8e+308 and 4.9e-324. + if ((h->num_digits == 0) || (h->decimal_point < -326)) { + goto zero; + } else if (h->decimal_point > 310) { + goto infinity; + } + + // Try the fast Eisel-Lemire algorithm again. Calculating the (man, exp10) + // pair from the high_prec_dec h is more correct but slower than the + // approach taken in wuffs_base__parse_number_f64. The latter is optimized + // for the common cases (e.g. assuming no underscores or a leading '+' + // sign) rather than the full set of cases allowed by the Wuffs API. + // + // When we have 19 or fewer mantissa digits, run Eisel-Lemire once (trying + // for an exact result). When we have more than 19 mantissa digits, run it + // twice to get a lower and upper bound. We still have an exact result + // (within f64's rounding margin) if both bounds are equal (and valid). + uint32_t i_max = h->num_digits; + if (i_max > 19) { + i_max = 19; + } + int32_t exp10 = h->decimal_point - ((int32_t)i_max); + if ((-307 <= exp10) && (exp10 <= 288)) { + uint64_t man = 0; + uint32_t i; + for (i = 0; i < i_max; i++) { + man = (10 * man) + h->digits[i]; + } + while (man != 0) { // The 'while' is just an 'if' that we can 'break'. + int64_t r0 = + wuffs_private_impl__parse_number_f64_eisel_lemire(man + 0, exp10); + if (r0 < 0) { + break; + } else if (h->num_digits > 19) { + int64_t r1 = + wuffs_private_impl__parse_number_f64_eisel_lemire(man + 1, exp10); + if (r1 != r0) { + break; + } + } + wuffs_base__result_f64 ret; + ret.status.repr = NULL; + ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64( + ((uint64_t)r0) | (((uint64_t)(h->negative)) << 63)); + return ret; + } + } + + // When Eisel-Lemire fails, fall back to Simple Decimal Conversion. See + // https://nigeltao.github.io/blog/2020/parse-number-f64-simple.html + // + // Scale by powers of 2 until we're in the range [0.1 .. 10]. Equivalently, + // that h->decimal_point is +0 or +1. + // + // First we shift right while at or above 10... + const int32_t f64_bias = -1023; + int32_t exp2 = 0; + while (h->decimal_point > 1) { + uint32_t n = (uint32_t)(+h->decimal_point); + uint32_t shift = (n < num_powers) + ? powers[n] + : WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL; + + wuffs_private_impl__high_prec_dec__small_rshift(h, shift); + if (h->decimal_point < -WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE) { + goto zero; + } + exp2 += (int32_t)shift; + } + // ...then we shift left while below 0.1. + while (h->decimal_point < 0) { + uint32_t shift; + uint32_t n = (uint32_t)(-h->decimal_point); + shift = (n < num_powers) + // The +1 is per "when targeting h->decimal_point being +0 or + // +1... when left shifting" in the powers comment above. + ? (powers[n] + 1u) + : WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL; + + wuffs_private_impl__high_prec_dec__small_lshift(h, shift); + if (h->decimal_point > +WUFFS_PRIVATE_IMPL__HPD__DECIMAL_POINT__RANGE) { + goto infinity; + } + exp2 -= (int32_t)shift; + } + + // To get from "in the range [0.1 .. 10]" to "in the range [1 .. 2]" (which + // will give us our exponent in base-2), the mantissa's first 3 digits will + // determine the final left shift, equal to 52 (the number of explicit f64 + // bits) plus an additional adjustment. + int man3 = (100 * h->digits[0]) + + ((h->num_digits > 1) ? (10 * h->digits[1]) : 0) + + ((h->num_digits > 2) ? h->digits[2] : 0); + int32_t additional_lshift = 0; + if (h->decimal_point == 0) { // The value is in [0.1 .. 1]. + if (man3 < 125) { + additional_lshift = +4; + } else if (man3 < 250) { + additional_lshift = +3; + } else if (man3 < 500) { + additional_lshift = +2; + } else { + additional_lshift = +1; + } + } else { // The value is in [1 .. 10]. + if (man3 < 200) { + additional_lshift = -0; + } else if (man3 < 400) { + additional_lshift = -1; + } else if (man3 < 800) { + additional_lshift = -2; + } else { + additional_lshift = -3; + } + } + exp2 -= additional_lshift; + uint32_t final_lshift = (uint32_t)(52 + additional_lshift); + + // The minimum normal exponent is (f64_bias + 1). + while ((f64_bias + 1) > exp2) { + uint32_t n = (uint32_t)((f64_bias + 1) - exp2); + if (n > WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL) { + n = WUFFS_PRIVATE_IMPL__HPD__SHIFT__MAX_INCL; + } + wuffs_private_impl__high_prec_dec__small_rshift(h, n); + exp2 += (int32_t)n; + } + + // Check for overflow. + if ((exp2 - f64_bias) >= 0x07FF) { // (1 << 11) - 1. + goto infinity; + } + + // Extract 53 bits for the mantissa (in base-2). + wuffs_private_impl__high_prec_dec__small_lshift(h, final_lshift); + uint64_t man2 = wuffs_private_impl__high_prec_dec__rounded_integer(h); + + // Rounding might have added one bit. If so, shift and re-check overflow. + if ((man2 >> 53) != 0) { + man2 >>= 1; + exp2++; + if ((exp2 - f64_bias) >= 0x07FF) { // (1 << 11) - 1. + goto infinity; + } + } + + // Handle subnormal numbers. + if ((man2 >> 52) == 0) { + exp2 = f64_bias; + } + + // Pack the bits and return. + uint64_t exp2_bits = + (uint64_t)((exp2 - f64_bias) & 0x07FF); // (1 << 11) - 1. + uint64_t bits = (man2 & 0x000FFFFFFFFFFFFF) | // (1 << 52) - 1. + (exp2_bits << 52) | // + (h->negative ? 0x8000000000000000 : 0); // (1 << 63). + + wuffs_base__result_f64 ret; + ret.status.repr = NULL; + ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64(bits); + return ret; + } while (0); + +zero: + do { + uint64_t bits = h->negative ? 0x8000000000000000 : 0; + + wuffs_base__result_f64 ret; + ret.status.repr = NULL; + ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64(bits); + return ret; + } while (0); + +infinity: + do { + if (options & WUFFS_BASE__PARSE_NUMBER_FXX__REJECT_INF_AND_NAN) { + wuffs_base__result_f64 ret; + ret.status.repr = wuffs_base__error__bad_argument; + ret.value = 0; + return ret; + } + + uint64_t bits = h->negative ? 0xFFF0000000000000 : 0x7FF0000000000000; + + wuffs_base__result_f64 ret; + ret.status.repr = NULL; + ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64(bits); + return ret; + } while (0); +} + +static inline bool // +wuffs_private_impl__is_decimal_digit(uint8_t c) { + return ('0' <= c) && (c <= '9'); +} + +WUFFS_BASE__MAYBE_STATIC wuffs_base__result_f64 // +wuffs_base__parse_number_f64(wuffs_base__slice_u8 s, uint32_t options) { + // In practice, almost all "dd.ddddE±xxx" numbers can be represented + // losslessly by a uint64_t mantissa "dddddd" and an int32_t base-10 + // exponent, adjusting "xxx" for the position (if present) of the decimal + // separator '.' or ','. + // + // This (u64 man, i32 exp10) data structure is superficially similar to the + // "Do It Yourself Floating Point" type from Loitsch (†), but the exponent + // here is base-10, not base-2. + // + // If s's number fits in a (man, exp10), parse that pair with the + // Eisel-Lemire algorithm. If not, or if Eisel-Lemire fails, parsing s with + // the fallback algorithm is slower but comprehensive. + // + // † "Printing Floating-Point Numbers Quickly and Accurately with Integers" + // (https://www.cs.tufts.edu/~nr/cs257/archive/florian-loitsch/printf.pdf). + // Florian Loitsch is also the primary contributor to + // https://github.com/google/double-conversion + do { + // Calculating that (man, exp10) pair needs to stay within s's bounds. + // Provided that s isn't extremely long, work on a NUL-terminated copy of + // s's contents. The NUL byte isn't a valid part of "±dd.ddddE±xxx". + // + // As the pointer p walks the contents, it's faster to repeatedly check "is + // *p a valid digit" than "is p within bounds and *p a valid digit". + if (s.len >= 256) { + goto fallback; + } + uint8_t z[256]; + memcpy(&z[0], s.ptr, s.len); + z[s.len] = 0; + const uint8_t* p = &z[0]; + + // Look for a leading minus sign. Technically, we could also look for an + // optional plus sign, but the "script/process-json-numbers.c with -p" + // benchmark is noticably slower if we do. It's optional and, in practice, + // usually absent. Let the fallback catch it. + bool negative = (*p == '-'); + if (negative) { + p++; + } + + // After walking "dd.dddd", comparing p later with p now will produce the + // number of "d"s and "."s. + const uint8_t* const start_of_digits_ptr = p; + + // Walk the "d"s before a '.', 'E', NUL byte, etc. If it starts with '0', + // it must be a single '0'. If it starts with a non-zero decimal digit, it + // can be a sequence of decimal digits. + // + // Update the man variable during the walk. It's OK if man overflows now. + // We'll detect that later. + uint64_t man; + if (*p == '0') { + man = 0; + p++; + if (wuffs_private_impl__is_decimal_digit(*p)) { + goto fallback; + } + } else if (wuffs_private_impl__is_decimal_digit(*p)) { + man = ((uint8_t)(*p - '0')); + p++; + for (; wuffs_private_impl__is_decimal_digit(*p); p++) { + man = (10 * man) + ((uint8_t)(*p - '0')); + } + } else { + goto fallback; + } + + // Walk the "d"s after the optional decimal separator ('.' or ','), + // updating the man and exp10 variables. + int32_t exp10 = 0; + if (*p == + ((options & WUFFS_BASE__PARSE_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) + ? ',' + : '.')) { + p++; + const uint8_t* first_after_separator_ptr = p; + if (!wuffs_private_impl__is_decimal_digit(*p)) { + goto fallback; + } + man = (10 * man) + ((uint8_t)(*p - '0')); + p++; + for (; wuffs_private_impl__is_decimal_digit(*p); p++) { + man = (10 * man) + ((uint8_t)(*p - '0')); + } + exp10 = ((int32_t)(first_after_separator_ptr - p)); + } + + // Count the number of digits: + // - for an input of "314159", digit_count is 6. + // - for an input of "3.14159", digit_count is 7. + // + // This is off-by-one if there is a decimal separator. That's OK for now. + // We'll correct for that later. The "script/process-json-numbers.c with + // -p" benchmark is noticably slower if we try to correct for that now. + uint32_t digit_count = (uint32_t)(p - start_of_digits_ptr); + + // Update exp10 for the optional exponent, starting with 'E' or 'e'. + if ((*p | 0x20) == 'e') { + p++; + int32_t exp_sign = +1; + if (*p == '-') { + p++; + exp_sign = -1; + } else if (*p == '+') { + p++; + } + if (!wuffs_private_impl__is_decimal_digit(*p)) { + goto fallback; + } + int32_t exp_num = ((uint8_t)(*p - '0')); + p++; + // The rest of the exp_num walking has a peculiar control flow but, once + // again, the "script/process-json-numbers.c with -p" benchmark is + // sensitive to alternative formulations. + if (wuffs_private_impl__is_decimal_digit(*p)) { + exp_num = (10 * exp_num) + ((uint8_t)(*p - '0')); + p++; + } + if (wuffs_private_impl__is_decimal_digit(*p)) { + exp_num = (10 * exp_num) + ((uint8_t)(*p - '0')); + p++; + } + while (wuffs_private_impl__is_decimal_digit(*p)) { + if (exp_num > 0x1000000) { + goto fallback; + } + exp_num = (10 * exp_num) + ((uint8_t)(*p - '0')); + p++; + } + exp10 += exp_sign * exp_num; + } + + // The Wuffs API is that the original slice has no trailing data. It also + // allows underscores, which we don't catch here but the fallback should. + if (p != &z[s.len]) { + goto fallback; + } + + // Check that the uint64_t typed man variable has not overflowed, based on + // digit_count. + // + // For reference: + // - (1 << 63) is 9223372036854775808, which has 19 decimal digits. + // - (1 << 64) is 18446744073709551616, which has 20 decimal digits. + // - 19 nines, 9999999999999999999, is 0x8AC7230489E7FFFF, which has 64 + // bits and 16 hexadecimal digits. + // - 20 nines, 99999999999999999999, is 0x56BC75E2D630FFFFF, which has 67 + // bits and 17 hexadecimal digits. + if (digit_count > 19) { + // Even if we have more than 19 pseudo-digits, it's not yet definitely an + // overflow. Recall that digit_count might be off-by-one (too large) if + // there's a decimal separator. It will also over-report the number of + // meaningful digits if the input looks something like "0.000dddExxx". + // + // We adjust by the number of leading '0's and '.'s and re-compare to 19. + // Once again, technically, we could skip ','s too, but that perturbs the + // "script/process-json-numbers.c with -p" benchmark. + const uint8_t* q = start_of_digits_ptr; + for (; (*q == '0') || (*q == '.'); q++) { + } + digit_count -= (uint32_t)(q - start_of_digits_ptr); + if (digit_count > 19) { + goto fallback; + } + } + + // The wuffs_private_impl__parse_number_f64_eisel_lemire preconditions + // include that exp10 is in the range [-307 ..= 288]. + if ((exp10 < -307) || (288 < exp10)) { + goto fallback; + } + + // If both man and (10 ** exp10) are exactly representable by a double, we + // don't need to run the Eisel-Lemire algorithm. + if ((-22 <= exp10) && (exp10 <= 22) && ((man >> 53) == 0)) { + double d = (double)man; + if (exp10 >= 0) { + d *= wuffs_private_impl__f64_powers_of_10[+exp10]; + } else { + d /= wuffs_private_impl__f64_powers_of_10[-exp10]; + } + wuffs_base__result_f64 ret; + ret.status.repr = NULL; + ret.value = negative ? -d : +d; + return ret; + } + + // The wuffs_private_impl__parse_number_f64_eisel_lemire preconditions + // include that man is non-zero. Parsing "0" should be caught by the "If + // both man and (10 ** exp10)" above, but "0e99" might not. + if (man == 0) { + goto fallback; + } + + // Our man and exp10 are in range. Run the Eisel-Lemire algorithm. + int64_t r = wuffs_private_impl__parse_number_f64_eisel_lemire(man, exp10); + if (r < 0) { + goto fallback; + } + wuffs_base__result_f64 ret; + ret.status.repr = NULL; + ret.value = wuffs_base__ieee_754_bit_representation__from_u64_to_f64( + ((uint64_t)r) | (((uint64_t)negative) << 63)); + return ret; + } while (0); + +fallback: + do { + wuffs_private_impl__high_prec_dec h; + wuffs_base__status status = + wuffs_private_impl__high_prec_dec__parse(&h, s, options); + if (status.repr) { + return wuffs_private_impl__parse_number_f64_special(s, options); + } + return wuffs_private_impl__high_prec_dec__to_f64(&h, options); + } while (0); +} + +// -------- + +static inline size_t // +wuffs_private_impl__render_inf(wuffs_base__slice_u8 dst, + bool neg, + uint32_t options) { + if (neg) { + if (dst.len < 4) { + return 0; + } + wuffs_base__poke_u32le__no_bounds_check(dst.ptr, 0x666E492D); // '-Inf'le. + return 4; + } + + if (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN) { + if (dst.len < 4) { + return 0; + } + wuffs_base__poke_u32le__no_bounds_check(dst.ptr, 0x666E492B); // '+Inf'le. + return 4; + } + + if (dst.len < 3) { + return 0; + } + wuffs_base__poke_u24le__no_bounds_check(dst.ptr, 0x666E49); // 'Inf'le. + return 3; +} + +static inline size_t // +wuffs_private_impl__render_nan(wuffs_base__slice_u8 dst) { + if (dst.len < 3) { + return 0; + } + wuffs_base__poke_u24le__no_bounds_check(dst.ptr, 0x4E614E); // 'NaN'le. + return 3; +} + +static size_t // +wuffs_private_impl__high_prec_dec__render_exponent_absent( + wuffs_base__slice_u8 dst, + wuffs_private_impl__high_prec_dec* h, + uint32_t precision, + uint32_t options) { + size_t n = (h->negative || + (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN)) + ? 1 + : 0; + if (h->decimal_point <= 0) { + n += 1; + } else { + n += (size_t)(h->decimal_point); + } + if (precision > 0) { + n += precision + 1; // +1 for the '.'. + } + + // Don't modify dst if the formatted number won't fit. + if (n > dst.len) { + return 0; + } + + // Align-left or align-right. + uint8_t* ptr = (options & WUFFS_BASE__RENDER_NUMBER_XXX__ALIGN_RIGHT) + ? &dst.ptr[dst.len - n] + : &dst.ptr[0]; + + // Leading "±". + if (h->negative) { + *ptr++ = '-'; + } else if (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN) { + *ptr++ = '+'; + } + + // Integral digits. + if (h->decimal_point <= 0) { + *ptr++ = '0'; + } else { + uint32_t m = + wuffs_base__u32__min(h->num_digits, (uint32_t)(h->decimal_point)); + uint32_t i = 0; + for (; i < m; i++) { + *ptr++ = (uint8_t)('0' | h->digits[i]); + } + for (; i < (uint32_t)(h->decimal_point); i++) { + *ptr++ = '0'; + } + } + + // Separator and then fractional digits. + if (precision > 0) { + *ptr++ = + (options & WUFFS_BASE__RENDER_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) + ? ',' + : '.'; + uint32_t i = 0; + for (; i < precision; i++) { + uint32_t j = ((uint32_t)(h->decimal_point)) + i; + *ptr++ = (uint8_t)('0' | ((j < h->num_digits) ? h->digits[j] : 0)); + } + } + + return n; +} + +static size_t // +wuffs_private_impl__high_prec_dec__render_exponent_present( + wuffs_base__slice_u8 dst, + wuffs_private_impl__high_prec_dec* h, + uint32_t precision, + uint32_t options) { + int32_t exp = 0; + if (h->num_digits > 0) { + exp = h->decimal_point - 1; + } + bool negative_exp = exp < 0; + if (negative_exp) { + exp = -exp; + } + + size_t n = (h->negative || + (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN)) + ? 4 + : 3; // Mininum 3 bytes: first digit and then "e±". + if (precision > 0) { + n += precision + 1; // +1 for the '.'. + } + n += (exp < 100) ? 2 : 3; + + // Don't modify dst if the formatted number won't fit. + if (n > dst.len) { + return 0; + } + + // Align-left or align-right. + uint8_t* ptr = (options & WUFFS_BASE__RENDER_NUMBER_XXX__ALIGN_RIGHT) + ? &dst.ptr[dst.len - n] + : &dst.ptr[0]; + + // Leading "±". + if (h->negative) { + *ptr++ = '-'; + } else if (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN) { + *ptr++ = '+'; + } + + // Integral digit. + if (h->num_digits > 0) { + *ptr++ = (uint8_t)('0' | h->digits[0]); + } else { + *ptr++ = '0'; + } + + // Separator and then fractional digits. + if (precision > 0) { + *ptr++ = + (options & WUFFS_BASE__RENDER_NUMBER_FXX__DECIMAL_SEPARATOR_IS_A_COMMA) + ? ',' + : '.'; + uint32_t i = 1; + uint32_t j = wuffs_base__u32__min(h->num_digits, precision + 1); + for (; i < j; i++) { + *ptr++ = (uint8_t)('0' | h->digits[i]); + } + for (; i <= precision; i++) { + *ptr++ = '0'; + } + } + + // Exponent: "e±" and then 2 or 3 digits. + *ptr++ = 'e'; + *ptr++ = negative_exp ? '-' : '+'; + if (exp < 10) { + *ptr++ = '0'; + *ptr++ = (uint8_t)('0' | exp); + } else if (exp < 100) { + *ptr++ = (uint8_t)('0' | (exp / 10)); + *ptr++ = (uint8_t)('0' | (exp % 10)); + } else { + int32_t e = exp / 100; + exp -= e * 100; + *ptr++ = (uint8_t)('0' | e); + *ptr++ = (uint8_t)('0' | (exp / 10)); + *ptr++ = (uint8_t)('0' | (exp % 10)); + } + + return n; +} + +WUFFS_BASE__MAYBE_STATIC size_t // +wuffs_base__render_number_f64(wuffs_base__slice_u8 dst, + double x, + uint32_t precision, + uint32_t options) { + // Decompose x (64 bits) into negativity (1 bit), base-2 exponent (11 bits + // with a -1023 bias) and mantissa (52 bits). + uint64_t bits = wuffs_base__ieee_754_bit_representation__from_f64_to_u64(x); + bool neg = (bits >> 63) != 0; + int32_t exp2 = ((int32_t)(bits >> 52)) & 0x7FF; + uint64_t man = bits & 0x000FFFFFFFFFFFFFul; + + // Apply the exponent bias and set the implicit top bit of the mantissa, + // unless x is subnormal. Also take care of Inf and NaN. + if (exp2 == 0x7FF) { + if (man != 0) { + return wuffs_private_impl__render_nan(dst); + } + return wuffs_private_impl__render_inf(dst, neg, options); + } else if (exp2 == 0) { + exp2 = -1022; + } else { + exp2 -= 1023; + man |= 0x0010000000000000ul; + } + + // Ensure that precision isn't too large. + if (precision > 4095) { + precision = 4095; + } + + // Convert from the (neg, exp2, man) tuple to an HPD. + wuffs_private_impl__high_prec_dec h; + wuffs_private_impl__high_prec_dec__assign(&h, man, neg); + if (h.num_digits > 0) { + wuffs_private_impl__high_prec_dec__lshift(&h, + exp2 - 52); // 52 mantissa bits. + } + + // Handle the "%e" and "%f" formats. + switch (options & (WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_ABSENT | + WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_PRESENT)) { + case WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_ABSENT: // The "%"f" format. + if (options & WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION) { + wuffs_private_impl__high_prec_dec__round_just_enough(&h, exp2, man); + int32_t p = ((int32_t)(h.num_digits)) - h.decimal_point; + precision = ((uint32_t)(wuffs_base__i32__max(0, p))); + } else { + wuffs_private_impl__high_prec_dec__round_nearest( + &h, ((int32_t)precision) + h.decimal_point); + } + return wuffs_private_impl__high_prec_dec__render_exponent_absent( + dst, &h, precision, options); + + case WUFFS_BASE__RENDER_NUMBER_FXX__EXPONENT_PRESENT: // The "%e" format. + if (options & WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION) { + wuffs_private_impl__high_prec_dec__round_just_enough(&h, exp2, man); + precision = (h.num_digits > 0) ? (h.num_digits - 1) : 0; + } else { + wuffs_private_impl__high_prec_dec__round_nearest( + &h, ((int32_t)precision) + 1); + } + return wuffs_private_impl__high_prec_dec__render_exponent_present( + dst, &h, precision, options); + } + + // We have the "%g" format and so precision means the number of significant + // digits, not the number of digits after the decimal separator. Perform + // rounding and determine whether to use "%e" or "%f". + int32_t e_threshold = 0; + if (options & WUFFS_BASE__RENDER_NUMBER_FXX__JUST_ENOUGH_PRECISION) { + wuffs_private_impl__high_prec_dec__round_just_enough(&h, exp2, man); + precision = h.num_digits; + e_threshold = 6; + } else { + if (precision == 0) { + precision = 1; + } + wuffs_private_impl__high_prec_dec__round_nearest(&h, ((int32_t)precision)); + e_threshold = ((int32_t)precision); + int32_t nd = ((int32_t)(h.num_digits)); + if ((e_threshold > nd) && (nd >= h.decimal_point)) { + e_threshold = nd; + } + } + + // Use the "%e" format if the exponent is large. + int32_t e = h.decimal_point - 1; + if ((e < -4) || (e_threshold <= e)) { + uint32_t p = wuffs_base__u32__min(precision, h.num_digits); + return wuffs_private_impl__high_prec_dec__render_exponent_present( + dst, &h, (p > 0) ? (p - 1) : 0, options); + } + + // Use the "%f" format otherwise. + int32_t p = ((int32_t)precision); + if (p > h.decimal_point) { + p = ((int32_t)(h.num_digits)); + } + precision = ((uint32_t)(wuffs_base__i32__max(0, p - h.decimal_point))); + return wuffs_private_impl__high_prec_dec__render_exponent_absent( + dst, &h, precision, options); +} + +#endif // !defined(WUFFS_CONFIG__MODULES) || + // defined(WUFFS_CONFIG__MODULE__BASE) || + // defined(WUFFS_CONFIG__MODULE__BASE__FLOATCONV) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ + defined(WUFFS_CONFIG__MODULE__BASE__INTCONV) + +// ---------------- Integer + +// wuffs_base__parse_number__foo_digits entries are 0x00 for invalid digits, +// and (0x80 | v) for valid digits, where v is the 4 bit value. + +static const uint8_t wuffs_base__parse_number__decimal_digits[256] = { + // 0 1 2 3 4 5 6 7 + // 8 9 A B C D E F + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x00 ..= 0x07. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x08 ..= 0x0F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x10 ..= 0x17. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x18 ..= 0x1F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x20 ..= 0x27. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x28 ..= 0x2F. + 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, // 0x30 ..= 0x37. '0'-'7'. + 0x88, 0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x38 ..= 0x3F. '8'-'9'. + + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x40 ..= 0x47. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x48 ..= 0x4F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x50 ..= 0x57. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x58 ..= 0x5F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x60 ..= 0x67. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x68 ..= 0x6F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x70 ..= 0x77. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x78 ..= 0x7F. + + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x80 ..= 0x87. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x88 ..= 0x8F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x90 ..= 0x97. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x98 ..= 0x9F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xA0 ..= 0xA7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xA8 ..= 0xAF. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xB0 ..= 0xB7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xB8 ..= 0xBF. + + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xC0 ..= 0xC7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xC8 ..= 0xCF. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xD0 ..= 0xD7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xD8 ..= 0xDF. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xE0 ..= 0xE7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xE8 ..= 0xEF. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xF0 ..= 0xF7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xF8 ..= 0xFF. + // 0 1 2 3 4 5 6 7 + // 8 9 A B C D E F +}; + +static const uint8_t wuffs_base__parse_number__hexadecimal_digits[256] = { + // 0 1 2 3 4 5 6 7 + // 8 9 A B C D E F + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x00 ..= 0x07. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x08 ..= 0x0F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x10 ..= 0x17. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x18 ..= 0x1F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x20 ..= 0x27. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x28 ..= 0x2F. + 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, // 0x30 ..= 0x37. '0'-'7'. + 0x88, 0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x38 ..= 0x3F. '8'-'9'. + + 0x00, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, 0x00, // 0x40 ..= 0x47. 'A'-'F'. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x48 ..= 0x4F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x50 ..= 0x57. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x58 ..= 0x5F. + 0x00, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, 0x00, // 0x60 ..= 0x67. 'a'-'f'. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x68 ..= 0x6F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x70 ..= 0x77. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x78 ..= 0x7F. + + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x80 ..= 0x87. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x88 ..= 0x8F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x90 ..= 0x97. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0x98 ..= 0x9F. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xA0 ..= 0xA7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xA8 ..= 0xAF. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xB0 ..= 0xB7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xB8 ..= 0xBF. + + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xC0 ..= 0xC7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xC8 ..= 0xCF. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xD0 ..= 0xD7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xD8 ..= 0xDF. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xE0 ..= 0xE7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xE8 ..= 0xEF. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xF0 ..= 0xF7. + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0xF8 ..= 0xFF. + // 0 1 2 3 4 5 6 7 + // 8 9 A B C D E F +}; + +static const uint8_t wuffs_private_impl__encode_base16[16] = { + 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, // 0x00 ..= 0x07. + 0x38, 0x39, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, // 0x08 ..= 0x0F. +}; + +// -------- + +WUFFS_BASE__MAYBE_STATIC wuffs_base__result_i64 // +wuffs_base__parse_number_i64(wuffs_base__slice_u8 s, uint32_t options) { + uint8_t* p = s.ptr; + uint8_t* q = s.ptr + s.len; + + if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { + for (; (p < q) && (*p == '_'); p++) { + } + } + + bool negative = false; + if (p >= q) { + goto fail_bad_argument; + } else if (*p == '-') { + p++; + negative = true; + } else if (*p == '+') { + p++; + } + + do { + wuffs_base__result_u64 r = wuffs_base__parse_number_u64( + wuffs_base__make_slice_u8(p, (size_t)(q - p)), options); + if (r.status.repr != NULL) { + wuffs_base__result_i64 ret; + ret.status.repr = r.status.repr; + ret.value = 0; + return ret; + } else if (negative) { + if (r.value < 0x8000000000000000) { + wuffs_base__result_i64 ret; + ret.status.repr = NULL; + ret.value = -(int64_t)(r.value); + return ret; + } else if (r.value == 0x8000000000000000) { + wuffs_base__result_i64 ret; + ret.status.repr = NULL; + ret.value = INT64_MIN; + return ret; + } + goto fail_out_of_bounds; + } else if (r.value > 0x7FFFFFFFFFFFFFFF) { + goto fail_out_of_bounds; + } else { + wuffs_base__result_i64 ret; + ret.status.repr = NULL; + ret.value = +(int64_t)(r.value); + return ret; + } + } while (0); + +fail_bad_argument: + do { + wuffs_base__result_i64 ret; + ret.status.repr = wuffs_base__error__bad_argument; + ret.value = 0; + return ret; + } while (0); + +fail_out_of_bounds: + do { + wuffs_base__result_i64 ret; + ret.status.repr = wuffs_base__error__out_of_bounds; + ret.value = 0; + return ret; + } while (0); +} + +WUFFS_BASE__MAYBE_STATIC wuffs_base__result_u64 // +wuffs_base__parse_number_u64(wuffs_base__slice_u8 s, uint32_t options) { + uint8_t* p = s.ptr; + uint8_t* q = s.ptr + s.len; + + if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { + for (; (p < q) && (*p == '_'); p++) { + } + } + + if (p >= q) { + goto fail_bad_argument; + + } else if (*p == '0') { + p++; + if (p >= q) { + goto ok_zero; + } + if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { + if (*p == '_') { + p++; + for (; p < q; p++) { + if (*p != '_') { + if (options & + WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_MULTIPLE_LEADING_ZEROES) { + goto decimal; + } + goto fail_bad_argument; + } + } + goto ok_zero; + } + } + + if ((*p == 'x') || (*p == 'X')) { + p++; + if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { + for (; (p < q) && (*p == '_'); p++) { + } + } + if (p < q) { + goto hexadecimal; + } + + } else if ((*p == 'd') || (*p == 'D')) { + p++; + if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { + for (; (p < q) && (*p == '_'); p++) { + } + } + if (p < q) { + goto decimal; + } + } + + if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_MULTIPLE_LEADING_ZEROES) { + goto decimal; + } + goto fail_bad_argument; + } + +decimal: + do { + uint64_t v = wuffs_base__parse_number__decimal_digits[*p++]; + if (v == 0) { + goto fail_bad_argument; + } + v &= 0x0F; + + // UINT64_MAX is 18446744073709551615, which is ((10 * max10) + max1). + const uint64_t max10 = 1844674407370955161u; + const uint8_t max1 = 5; + + for (; p < q; p++) { + if ((*p == '_') && + (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { + continue; + } + uint8_t digit = wuffs_base__parse_number__decimal_digits[*p]; + if (digit == 0) { + goto fail_bad_argument; + } + digit &= 0x0F; + if ((v > max10) || ((v == max10) && (digit > max1))) { + goto fail_out_of_bounds; + } + v = (10 * v) + ((uint64_t)(digit)); + } + + wuffs_base__result_u64 ret; + ret.status.repr = NULL; + ret.value = v; + return ret; + } while (0); + +hexadecimal: + do { + uint64_t v = wuffs_base__parse_number__hexadecimal_digits[*p++]; + if (v == 0) { + goto fail_bad_argument; + } + v &= 0x0F; + + for (; p < q; p++) { + if ((*p == '_') && + (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { + continue; + } + uint8_t digit = wuffs_base__parse_number__hexadecimal_digits[*p]; + if (digit == 0) { + goto fail_bad_argument; + } + digit &= 0x0F; + if ((v >> 60) != 0) { + goto fail_out_of_bounds; + } + v = (v << 4) | ((uint64_t)(digit)); + } + + wuffs_base__result_u64 ret; + ret.status.repr = NULL; + ret.value = v; + return ret; + } while (0); + +ok_zero: + do { + wuffs_base__result_u64 ret; + ret.status.repr = NULL; + ret.value = 0; + return ret; + } while (0); + +fail_bad_argument: + do { + wuffs_base__result_u64 ret; + ret.status.repr = wuffs_base__error__bad_argument; + ret.value = 0; + return ret; + } while (0); + +fail_out_of_bounds: + do { + wuffs_base__result_u64 ret; + ret.status.repr = wuffs_base__error__out_of_bounds; + ret.value = 0; + return ret; + } while (0); +} + +// -------- + +// wuffs_base__render_number__first_hundred contains the decimal encodings of +// the first one hundred numbers [0 ..= 99]. +static const uint8_t wuffs_base__render_number__first_hundred[200] = { + '0', '0', '0', '1', '0', '2', '0', '3', '0', '4', // + '0', '5', '0', '6', '0', '7', '0', '8', '0', '9', // + '1', '0', '1', '1', '1', '2', '1', '3', '1', '4', // + '1', '5', '1', '6', '1', '7', '1', '8', '1', '9', // + '2', '0', '2', '1', '2', '2', '2', '3', '2', '4', // + '2', '5', '2', '6', '2', '7', '2', '8', '2', '9', // + '3', '0', '3', '1', '3', '2', '3', '3', '3', '4', // + '3', '5', '3', '6', '3', '7', '3', '8', '3', '9', // + '4', '0', '4', '1', '4', '2', '4', '3', '4', '4', // + '4', '5', '4', '6', '4', '7', '4', '8', '4', '9', // + '5', '0', '5', '1', '5', '2', '5', '3', '5', '4', // + '5', '5', '5', '6', '5', '7', '5', '8', '5', '9', // + '6', '0', '6', '1', '6', '2', '6', '3', '6', '4', // + '6', '5', '6', '6', '6', '7', '6', '8', '6', '9', // + '7', '0', '7', '1', '7', '2', '7', '3', '7', '4', // + '7', '5', '7', '6', '7', '7', '7', '8', '7', '9', // + '8', '0', '8', '1', '8', '2', '8', '3', '8', '4', // + '8', '5', '8', '6', '8', '7', '8', '8', '8', '9', // + '9', '0', '9', '1', '9', '2', '9', '3', '9', '4', // + '9', '5', '9', '6', '9', '7', '9', '8', '9', '9', // +}; + +static size_t // +wuffs_private_impl__render_number_u64(wuffs_base__slice_u8 dst, + uint64_t x, + uint32_t options, + bool neg) { + uint8_t buf[WUFFS_BASE__U64__BYTE_LENGTH__MAX_INCL]; + uint8_t* ptr = &buf[0] + sizeof(buf); + + while (x >= 100) { + size_t index = ((size_t)((x % 100) * 2)); + x /= 100; + uint8_t s0 = wuffs_base__render_number__first_hundred[index + 0]; + uint8_t s1 = wuffs_base__render_number__first_hundred[index + 1]; + ptr -= 2; + ptr[0] = s0; + ptr[1] = s1; + } + + if (x < 10) { + ptr -= 1; + ptr[0] = (uint8_t)('0' + x); + } else { + size_t index = ((size_t)(x * 2)); + uint8_t s0 = wuffs_base__render_number__first_hundred[index + 0]; + uint8_t s1 = wuffs_base__render_number__first_hundred[index + 1]; + ptr -= 2; + ptr[0] = s0; + ptr[1] = s1; + } + + if (neg) { + ptr -= 1; + ptr[0] = '-'; + } else if (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN) { + ptr -= 1; + ptr[0] = '+'; + } + + size_t n = sizeof(buf) - ((size_t)(ptr - &buf[0])); + if (n > dst.len) { + return 0; + } + memcpy(dst.ptr + ((options & WUFFS_BASE__RENDER_NUMBER_XXX__ALIGN_RIGHT) + ? (dst.len - n) + : 0), + ptr, n); + return n; +} + +WUFFS_BASE__MAYBE_STATIC size_t // +wuffs_base__render_number_i64(wuffs_base__slice_u8 dst, + int64_t x, + uint32_t options) { + uint64_t u = (uint64_t)x; + bool neg = x < 0; + if (neg) { + u = 1 + ~u; + } + return wuffs_private_impl__render_number_u64(dst, u, options, neg); +} + +WUFFS_BASE__MAYBE_STATIC size_t // +wuffs_base__render_number_u64(wuffs_base__slice_u8 dst, + uint64_t x, + uint32_t options) { + return wuffs_private_impl__render_number_u64(dst, x, options, false); +} + +// ---------------- Base-16 + +WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // +wuffs_base__base_16__decode2(wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 src, + bool src_closed, + uint32_t options) { + wuffs_base__transform__output o; + size_t src_len2 = src.len / 2; + size_t len; + if (dst.len < src_len2) { + len = dst.len; + o.status.repr = wuffs_base__suspension__short_write; + } else { + len = src_len2; + if (!src_closed) { + o.status.repr = wuffs_base__suspension__short_read; + } else if (src.len & 1) { + o.status.repr = wuffs_base__error__bad_data; + } else { + o.status.repr = NULL; + } + } + + uint8_t* d = dst.ptr; + uint8_t* s = src.ptr; + size_t n = len; + + while (n--) { + *d = (uint8_t)((wuffs_base__parse_number__hexadecimal_digits[s[0]] << 4) | + (wuffs_base__parse_number__hexadecimal_digits[s[1]] & 0x0F)); + d += 1; + s += 2; + } + + o.num_dst = len; + o.num_src = len * 2; + return o; +} + +WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // +wuffs_base__base_16__decode4(wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 src, + bool src_closed, + uint32_t options) { + wuffs_base__transform__output o; + size_t src_len4 = src.len / 4; + size_t len = dst.len < src_len4 ? dst.len : src_len4; + if (dst.len < src_len4) { + len = dst.len; + o.status.repr = wuffs_base__suspension__short_write; + } else { + len = src_len4; + if (!src_closed) { + o.status.repr = wuffs_base__suspension__short_read; + } else if (src.len & 1) { + o.status.repr = wuffs_base__error__bad_data; + } else { + o.status.repr = NULL; + } + } + + uint8_t* d = dst.ptr; + uint8_t* s = src.ptr; + size_t n = len; + + while (n--) { + *d = (uint8_t)((wuffs_base__parse_number__hexadecimal_digits[s[2]] << 4) | + (wuffs_base__parse_number__hexadecimal_digits[s[3]] & 0x0F)); + d += 1; + s += 4; + } + + o.num_dst = len; + o.num_src = len * 4; + return o; +} + +WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // +wuffs_base__base_16__encode2(wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 src, + bool src_closed, + uint32_t options) { + wuffs_base__transform__output o; + size_t dst_len2 = dst.len / 2; + size_t len; + if (dst_len2 < src.len) { + len = dst_len2; + o.status.repr = wuffs_base__suspension__short_write; + } else { + len = src.len; + if (!src_closed) { + o.status.repr = wuffs_base__suspension__short_read; + } else { + o.status.repr = NULL; + } + } + + uint8_t* d = dst.ptr; + uint8_t* s = src.ptr; + size_t n = len; + + while (n--) { + uint8_t c = *s; + d[0] = wuffs_private_impl__encode_base16[c >> 4]; + d[1] = wuffs_private_impl__encode_base16[c & 0x0F]; + d += 2; + s += 1; + } + + o.num_dst = len * 2; + o.num_src = len; + return o; +} + +WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // +wuffs_base__base_16__encode4(wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 src, + bool src_closed, + uint32_t options) { + wuffs_base__transform__output o; + size_t dst_len4 = dst.len / 4; + size_t len; + if (dst_len4 < src.len) { + len = dst_len4; + o.status.repr = wuffs_base__suspension__short_write; + } else { + len = src.len; + if (!src_closed) { + o.status.repr = wuffs_base__suspension__short_read; + } else { + o.status.repr = NULL; + } + } + + uint8_t* d = dst.ptr; + uint8_t* s = src.ptr; + size_t n = len; + + while (n--) { + uint8_t c = *s; + d[0] = '\\'; + d[1] = 'x'; + d[2] = wuffs_private_impl__encode_base16[c >> 4]; + d[3] = wuffs_private_impl__encode_base16[c & 0x0F]; + d += 4; + s += 1; + } + + o.num_dst = len * 4; + o.num_src = len; + return o; +} + +// ---------------- Base-64 + +// The two base-64 alphabets, std and url, differ only in the last two codes. +// - std: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" +// - url: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_" + +static const uint8_t wuffs_base__base_64__decode_std[256] = { + // 0 1 2 3 4 5 6 7 + // 8 9 A B C D E F + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x00 ..= 0x07. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x08 ..= 0x0F. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x10 ..= 0x17. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x18 ..= 0x1F. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x20 ..= 0x27. + 0x80, 0x80, 0x80, 0x3E, 0x80, 0x80, 0x80, 0x3F, // 0x28 ..= 0x2F. + 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, // 0x30 ..= 0x37. + 0x3C, 0x3D, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x38 ..= 0x3F. + + 0x80, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, // 0x40 ..= 0x47. + 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, // 0x48 ..= 0x4F. + 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, // 0x50 ..= 0x57. + 0x17, 0x18, 0x19, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x58 ..= 0x5F. + 0x80, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, // 0x60 ..= 0x67. + 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, // 0x68 ..= 0x6F. + 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, // 0x70 ..= 0x77. + 0x31, 0x32, 0x33, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x78 ..= 0x7F. + + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x80 ..= 0x87. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x88 ..= 0x8F. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x90 ..= 0x97. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x98 ..= 0x9F. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xA0 ..= 0xA7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xA8 ..= 0xAF. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xB0 ..= 0xB7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xB8 ..= 0xBF. + + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xC0 ..= 0xC7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xC8 ..= 0xCF. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xD0 ..= 0xD7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xD8 ..= 0xDF. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xE0 ..= 0xE7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xE8 ..= 0xEF. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF0 ..= 0xF7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF8 ..= 0xFF. + // 0 1 2 3 4 5 6 7 + // 8 9 A B C D E F +}; + +static const uint8_t wuffs_base__base_64__decode_url[256] = { + // 0 1 2 3 4 5 6 7 + // 8 9 A B C D E F + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x00 ..= 0x07. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x08 ..= 0x0F. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x10 ..= 0x17. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x18 ..= 0x1F. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x20 ..= 0x27. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x3E, 0x80, 0x80, // 0x28 ..= 0x2F. + 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, // 0x30 ..= 0x37. + 0x3C, 0x3D, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x38 ..= 0x3F. + + 0x80, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, // 0x40 ..= 0x47. + 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, // 0x48 ..= 0x4F. + 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, // 0x50 ..= 0x57. + 0x17, 0x18, 0x19, 0x80, 0x80, 0x80, 0x80, 0x3F, // 0x58 ..= 0x5F. + 0x80, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, // 0x60 ..= 0x67. + 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, // 0x68 ..= 0x6F. + 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, // 0x70 ..= 0x77. + 0x31, 0x32, 0x33, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x78 ..= 0x7F. + + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x80 ..= 0x87. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x88 ..= 0x8F. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x90 ..= 0x97. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x98 ..= 0x9F. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xA0 ..= 0xA7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xA8 ..= 0xAF. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xB0 ..= 0xB7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xB8 ..= 0xBF. + + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xC0 ..= 0xC7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xC8 ..= 0xCF. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xD0 ..= 0xD7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xD8 ..= 0xDF. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xE0 ..= 0xE7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xE8 ..= 0xEF. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF0 ..= 0xF7. + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF8 ..= 0xFF. + // 0 1 2 3 4 5 6 7 + // 8 9 A B C D E F +}; + +static const uint8_t wuffs_base__base_64__encode_std[64] = { + // 0 1 2 3 4 5 6 7 + // 8 9 A B C D E F + 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, // 0x00 ..= 0x07. + 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, // 0x08 ..= 0x0F. + 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, // 0x10 ..= 0x17. + 0x59, 0x5A, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, // 0x18 ..= 0x1F. + 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, // 0x20 ..= 0x27. + 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, // 0x28 ..= 0x2F. + 0x77, 0x78, 0x79, 0x7A, 0x30, 0x31, 0x32, 0x33, // 0x30 ..= 0x37. + 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x2B, 0x2F, // 0x38 ..= 0x3F. +}; + +static const uint8_t wuffs_base__base_64__encode_url[64] = { + // 0 1 2 3 4 5 6 7 + // 8 9 A B C D E F + 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, // 0x00 ..= 0x07. + 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, // 0x08 ..= 0x0F. + 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, // 0x10 ..= 0x17. + 0x59, 0x5A, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, // 0x18 ..= 0x1F. + 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, // 0x20 ..= 0x27. + 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, // 0x28 ..= 0x2F. + 0x77, 0x78, 0x79, 0x7A, 0x30, 0x31, 0x32, 0x33, // 0x30 ..= 0x37. + 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x2D, 0x5F, // 0x38 ..= 0x3F. +}; + +// -------- + +WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // +wuffs_base__base_64__decode(wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 src, + bool src_closed, + uint32_t options) { + const uint8_t* alphabet = (options & WUFFS_BASE__BASE_64__URL_ALPHABET) + ? wuffs_base__base_64__decode_url + : wuffs_base__base_64__decode_std; + wuffs_base__transform__output o; + uint8_t* d_ptr = dst.ptr; + size_t d_len = dst.len; + const uint8_t* s_ptr = src.ptr; + size_t s_len = src.len; + bool pad = false; + + while (s_len >= 4) { + uint32_t s = wuffs_base__peek_u32le__no_bounds_check(s_ptr); + uint32_t s0 = alphabet[0xFF & (s >> 0)]; + uint32_t s1 = alphabet[0xFF & (s >> 8)]; + uint32_t s2 = alphabet[0xFF & (s >> 16)]; + uint32_t s3 = alphabet[0xFF & (s >> 24)]; + + if (((s0 | s1 | s2 | s3) & 0xC0) != 0) { + if (s_len > 4) { + o.status.repr = wuffs_base__error__bad_data; + goto done; + } else if (!src_closed) { + o.status.repr = wuffs_base__suspension__short_read; + goto done; + } else if ((options & WUFFS_BASE__BASE_64__DECODE_ALLOW_PADDING) && + (s_ptr[3] == '=')) { + pad = true; + if (s_ptr[2] == '=') { + goto src2; + } + goto src3; + } + o.status.repr = wuffs_base__error__bad_data; + goto done; + } + + if (d_len < 3) { + o.status.repr = wuffs_base__suspension__short_write; + goto done; + } + + s_ptr += 4; + s_len -= 4; + s = (s0 << 18) | (s1 << 12) | (s2 << 6) | (s3 << 0); + *d_ptr++ = (uint8_t)(s >> 16); + *d_ptr++ = (uint8_t)(s >> 8); + *d_ptr++ = (uint8_t)(s >> 0); + d_len -= 3; + } + + if (!src_closed) { + o.status.repr = wuffs_base__suspension__short_read; + goto done; + } + + if (s_len == 0) { + o.status.repr = NULL; + goto done; + } else if (s_len == 1) { + o.status.repr = wuffs_base__error__bad_data; + goto done; + } else if (s_len == 2) { + goto src2; + } + +src3: + do { + uint32_t s = wuffs_base__peek_u24le__no_bounds_check(s_ptr); + uint32_t s0 = alphabet[0xFF & (s >> 0)]; + uint32_t s1 = alphabet[0xFF & (s >> 8)]; + uint32_t s2 = alphabet[0xFF & (s >> 16)]; + if ((s0 & 0xC0) || (s1 & 0xC0) || (s2 & 0xC3)) { + o.status.repr = wuffs_base__error__bad_data; + goto done; + } + if (d_len < 2) { + o.status.repr = wuffs_base__suspension__short_write; + goto done; + } + s_ptr += pad ? 4 : 3; + s = (s0 << 18) | (s1 << 12) | (s2 << 6); + *d_ptr++ = (uint8_t)(s >> 16); + *d_ptr++ = (uint8_t)(s >> 8); + o.status.repr = NULL; + goto done; } while (0); -fail_bad_argument: +src2: do { - wuffs_base__result_i64 ret; - ret.status.repr = wuffs_base__error__bad_argument; - ret.value = 0; - return ret; + uint32_t s = wuffs_base__peek_u16le__no_bounds_check(s_ptr); + uint32_t s0 = alphabet[0xFF & (s >> 0)]; + uint32_t s1 = alphabet[0xFF & (s >> 8)]; + if ((s0 & 0xC0) || (s1 & 0xCF)) { + o.status.repr = wuffs_base__error__bad_data; + goto done; + } + if (d_len < 1) { + o.status.repr = wuffs_base__suspension__short_write; + goto done; + } + s_ptr += pad ? 4 : 2; + s = (s0 << 18) | (s1 << 12); + *d_ptr++ = (uint8_t)(s >> 16); + o.status.repr = NULL; + goto done; + } while (0); + +done: + o.num_dst = (size_t)(d_ptr - dst.ptr); + o.num_src = (size_t)(s_ptr - src.ptr); + return o; +} + +WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // +wuffs_base__base_64__encode(wuffs_base__slice_u8 dst, + wuffs_base__slice_u8 src, + bool src_closed, + uint32_t options) { + const uint8_t* alphabet = (options & WUFFS_BASE__BASE_64__URL_ALPHABET) + ? wuffs_base__base_64__encode_url + : wuffs_base__base_64__encode_std; + wuffs_base__transform__output o; + uint8_t* d_ptr = dst.ptr; + size_t d_len = dst.len; + const uint8_t* s_ptr = src.ptr; + size_t s_len = src.len; + + do { + while (s_len >= 3) { + if (d_len < 4) { + o.status.repr = wuffs_base__suspension__short_write; + goto done; + } + uint32_t s = wuffs_base__peek_u24be__no_bounds_check(s_ptr); + s_ptr += 3; + s_len -= 3; + *d_ptr++ = alphabet[0x3F & (s >> 18)]; + *d_ptr++ = alphabet[0x3F & (s >> 12)]; + *d_ptr++ = alphabet[0x3F & (s >> 6)]; + *d_ptr++ = alphabet[0x3F & (s >> 0)]; + d_len -= 4; + } + + if (!src_closed) { + o.status.repr = wuffs_base__suspension__short_read; + goto done; + } + + if (s_len == 2) { + if (d_len < + ((options & WUFFS_BASE__BASE_64__ENCODE_EMIT_PADDING) ? 4 : 3)) { + o.status.repr = wuffs_base__suspension__short_write; + goto done; + } + uint32_t s = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(s_ptr))) + << 8; + s_ptr += 2; + *d_ptr++ = alphabet[0x3F & (s >> 18)]; + *d_ptr++ = alphabet[0x3F & (s >> 12)]; + *d_ptr++ = alphabet[0x3F & (s >> 6)]; + if (options & WUFFS_BASE__BASE_64__ENCODE_EMIT_PADDING) { + *d_ptr++ = '='; + } + o.status.repr = NULL; + goto done; + + } else if (s_len == 1) { + if (d_len < + ((options & WUFFS_BASE__BASE_64__ENCODE_EMIT_PADDING) ? 4 : 2)) { + o.status.repr = wuffs_base__suspension__short_write; + goto done; + } + uint32_t s = ((uint32_t)(wuffs_base__peek_u8__no_bounds_check(s_ptr))) + << 16; + s_ptr += 1; + *d_ptr++ = alphabet[0x3F & (s >> 18)]; + *d_ptr++ = alphabet[0x3F & (s >> 12)]; + if (options & WUFFS_BASE__BASE_64__ENCODE_EMIT_PADDING) { + *d_ptr++ = '='; + *d_ptr++ = '='; + } + o.status.repr = NULL; + goto done; + + } else { + o.status.repr = NULL; + goto done; + } } while (0); -fail_out_of_bounds: - do { - wuffs_base__result_i64 ret; - ret.status.repr = wuffs_base__error__out_of_bounds; - ret.value = 0; - return ret; - } while (0); +done: + o.num_dst = (size_t)(d_ptr - dst.ptr); + o.num_src = (size_t)(s_ptr - src.ptr); + return o; +} + +#endif // !defined(WUFFS_CONFIG__MODULES) || + // defined(WUFFS_CONFIG__MODULE__BASE) || + // defined(WUFFS_CONFIG__MODULE__BASE__INTCONV) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ + defined(WUFFS_CONFIG__MODULE__BASE__MAGIC) + +// ---------------- Magic Numbers + +// ICO doesn't start with a magic identifier. Instead, see if the opening bytes +// are plausibly ICO. +// +// Callers should have already verified that (prefix_data.len >= 2) and the +// first two bytes are 0x00. +// +// See: +// - https://docs.fileformat.com/image/ico/ +static int32_t // +wuffs_base__magic_number_guess_fourcc__maybe_ico( + wuffs_base__slice_u8 prefix_data, + bool prefix_closed) { + // Allow-list for the Image Type field. + if (prefix_data.len < 4) { + return prefix_closed ? 0 : -1; + } else if (prefix_data.ptr[3] != 0) { + return 0; + } + switch (prefix_data.ptr[2]) { + case 0x01: // ICO + case 0x02: // CUR + break; + default: + return 0; + } + + // The Number Of Images should be positive. + if (prefix_data.len < 6) { + return prefix_closed ? 0 : -1; + } else if ((prefix_data.ptr[4] == 0) && (prefix_data.ptr[5] == 0)) { + return 0; + } + + // The first ICONDIRENTRY's fourth byte should be zero. + if (prefix_data.len < 10) { + return prefix_closed ? 0 : -1; + } else if (prefix_data.ptr[9] != 0) { + return 0; + } + + // TODO: have a separate FourCC for CUR? + return 0x49434F20; // 'ICO 'be +} + +// TGA doesn't start with a magic identifier. Instead, see if the opening bytes +// are plausibly TGA. +// +// Callers should have already verified that (prefix_data.len >= 2) and the +// second byte (prefix_data.ptr[1], the Color Map Type byte), is either 0x00 or +// 0x01. +// +// See: +// - https://docs.fileformat.com/image/tga/ +// - https://www.dca.fee.unicamp.br/~martino/disciplinas/ea978/tgaffs.pdf +static int32_t // +wuffs_base__magic_number_guess_fourcc__maybe_tga( + wuffs_base__slice_u8 prefix_data, + bool prefix_closed) { + // Allow-list for the Image Type field. + if (prefix_data.len < 3) { + return prefix_closed ? 0 : -1; + } + switch (prefix_data.ptr[2]) { + case 0x01: + case 0x02: + case 0x03: + case 0x09: + case 0x0A: + case 0x0B: + break; + default: + // TODO: 0x20 and 0x21 are invalid, according to the spec, but are + // apparently unofficial extensions. + return 0; + } + + // Allow-list for the Color Map Entry Size field (if the Color Map Type field + // is non-zero) or else all the Color Map fields should be zero. + if (prefix_data.len < 8) { + return prefix_closed ? 0 : -1; + } else if (prefix_data.ptr[1] != 0x00) { + switch (prefix_data.ptr[7]) { + case 0x0F: + case 0x10: + case 0x18: + case 0x20: + break; + default: + return 0; + } + } else if ((prefix_data.ptr[3] | prefix_data.ptr[4] | prefix_data.ptr[5] | + prefix_data.ptr[6] | prefix_data.ptr[7]) != 0x00) { + return 0; + } + + // Allow-list for the Pixel Depth field. + if (prefix_data.len < 17) { + return prefix_closed ? 0 : -1; + } + switch (prefix_data.ptr[16]) { + case 0x01: + case 0x08: + case 0x0F: + case 0x10: + case 0x18: + case 0x20: + break; + default: + return 0; + } + + return 0x54474120; // 'TGA 'be +} + +WUFFS_BASE__MAYBE_STATIC int32_t // +wuffs_base__magic_number_guess_fourcc(wuffs_base__slice_u8 prefix_data, + bool prefix_closed) { + // This is similar to (but different from): + // - the magic/Magdir tables under https://github.com/file/file + // - the MIME Sniffing algorithm at https://mimesniff.spec.whatwg.org/ + + // table holds the 'magic numbers' (which are actually variable length + // strings). The strings may contain NUL bytes, so the "const char* magic" + // value starts with the length-minus-1 of the 'magic number'. + // + // Keep it sorted by magic[1], then magic[0] descending (prioritizing longer + // matches) and finally by magic[2:]. When multiple entries match, the + // longest one wins. + // + // The fourcc field might be negated, in which case there's further + // specialization (see § below). + static struct { + int32_t fourcc; + const char* magic; + } table[] = { + {-0x30302020, "\x01\x00\x00"}, // '00 'be + {+0x41425852, "\x03\x03\x00\x08\x00"}, // ABXR + {+0x475A2020, "\x02\x1F\x8B\x08"}, // GZ + {+0x5A535444, "\x03\x28\xB5\x2F\xFD"}, // ZSTD + {+0x584D4C20, "\x05\x3C\x3F\x78\x6D\x6C\x20"}, // XML + {+0x41425853, "\x03\x41\x42\x58\x00"}, // ABXS + {+0x425A3220, "\x02\x42\x5A\x68"}, // BZ2 + {+0x424D5020, "\x01\x42\x4D"}, // BMP + {+0x47494620, "\x03\x47\x49\x46\x38"}, // GIF + {+0x54494646, "\x03\x49\x49\x2A\x00"}, // TIFF (little-endian) + {+0x4C5A4950, "\x04\x4C\x5A\x49\x50\x01"}, // LZIP + {+0x54494646, "\x03\x4D\x4D\x00\x2A"}, // TIFF (big-endian) + {+0x45544332, "\x03\x50\x4B\x4D\x20"}, // ETC2 (*.pkm) + {+0x4E50424D, "\x02\x50\x35\x0A"}, // NPBM (P5; *.pgm) + {+0x4E50424D, "\x02\x50\x36\x0A"}, // NPBM (P6; *.ppm) + {-0x52494646, "\x03\x52\x49\x46\x46"}, // RIFF + {+0x4C5A4D41, "\x04\x5D\x00\x10\x00\x00"}, // LZMA + {+0x4C5A4D41, "\x02\x5D\x00\x00"}, // LZMA + {+0x4E494520, "\x02\x6E\xC3\xAF"}, // NIE + {+0x514F4920, "\x03\x71\x6F\x69\x66"}, // QOI + {+0x5A4C4942, "\x01\x78\x9C"}, // ZLIB + {+0x504E4720, "\x03\x89\x50\x4E\x47"}, // PNG + {+0x54482020, "\x02\xC3\xBE\xFE"}, // TH + {+0x585A2020, "\x04\xFD\x37\x7A\x58\x5A"}, // XZ + {+0x4A504547, "\x01\xFF\xD8"}, // JPEG + }; + static const size_t table_len = sizeof(table) / sizeof(table[0]); + + if (prefix_data.len == 0) { + return prefix_closed ? 0 : -1; + } + uint8_t pre_first_byte = prefix_data.ptr[0]; + + int32_t fourcc = 0; + size_t i; + for (i = 0; i < table_len; i++) { + uint8_t mag_first_byte = ((uint8_t)(table[i].magic[1])); + if (pre_first_byte < mag_first_byte) { + break; + } else if (pre_first_byte > mag_first_byte) { + continue; + } + fourcc = table[i].fourcc; + + uint8_t mag_remaining_len = ((uint8_t)(table[i].magic[0])); + if (mag_remaining_len == 0) { + goto match; + } + + const char* mag_remaining_ptr = table[i].magic + 2; + uint8_t* pre_remaining_ptr = prefix_data.ptr + 1; + size_t pre_remaining_len = prefix_data.len - 1; + if (pre_remaining_len < mag_remaining_len) { + if (!memcmp(pre_remaining_ptr, mag_remaining_ptr, pre_remaining_len)) { + return prefix_closed ? 0 : -1; + } + } else { + if (!memcmp(pre_remaining_ptr, mag_remaining_ptr, mag_remaining_len)) { + goto match; + } + } + } + + if (prefix_data.len < 2) { + return prefix_closed ? 0 : -1; + } else if ((prefix_data.ptr[1] == 0x00) || (prefix_data.ptr[1] == 0x01)) { + return wuffs_base__magic_number_guess_fourcc__maybe_tga(prefix_data, + prefix_closed); + } + + return 0; + +match: + // Negative FourCC values (see § above) are further specialized. + if (fourcc < 0) { + fourcc = -fourcc; + + if (fourcc == 0x52494646) { // 'RIFF'be + if (prefix_data.len < 12) { + return prefix_closed ? 0 : -1; + } + uint32_t x = wuffs_base__peek_u32be__no_bounds_check(prefix_data.ptr + 8); + if (x == 0x57454250) { // 'WEBP'be + return 0x57454250; // 'WEBP'be + } + + } else if (fourcc == 0x30302020) { // '00 'be + // Binary data starting with multiple 0x00 NUL bytes is quite common. + // Unfortunately, some file formats also don't start with a magic + // identifier, so we have to use heuristics (where the order matters, the + // same as /usr/bin/file's magic/Magdir tables) as best we can. Maybe + // it's TGA, ICO/CUR, etc. Maybe it's something else. + int32_t tga = wuffs_base__magic_number_guess_fourcc__maybe_tga( + prefix_data, prefix_closed); + if (tga != 0) { + return tga; + } + int32_t ico = wuffs_base__magic_number_guess_fourcc__maybe_ico( + prefix_data, prefix_closed); + if (ico != 0) { + return ico; + } + if (prefix_data.len < 4) { + return prefix_closed ? 0 : -1; + } else if ((prefix_data.ptr[2] != 0x00) && + ((prefix_data.ptr[2] >= 0x80) || + (prefix_data.ptr[3] != 0x00))) { + // Roughly speaking, this could be a non-degenerate (non-0-width and + // non-0-height) WBMP image. + return 0x57424D50; // 'WBMP'be + } + return 0; + } + } + return fourcc; +} + +#endif // !defined(WUFFS_CONFIG__MODULES) || + // defined(WUFFS_CONFIG__MODULE__BASE) || + // defined(WUFFS_CONFIG__MODULE__BASE__MAGIC) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ + defined(WUFFS_CONFIG__MODULE__BASE__PIXCONV) + +// ---------------- Pixel Swizzler + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") +static uint64_t // +wuffs_private_impl__swizzle_bgrw__bgr__x86_sse42(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len); + +static uint64_t // +wuffs_private_impl__swizzle_bgrw__rgb__x86_sse42(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len); + +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") +static uint64_t // +wuffs_private_impl__swizzle_swap_rgbx_bgrx__x86_sse42(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len); + +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") +static uint64_t // +wuffs_private_impl__swizzle_xxxx__y__x86_sse42(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + +// -------- + +static inline uint32_t // +wuffs_private_impl__swap_u32_argb_abgr(uint32_t u) { + uint32_t o = u & 0xFF00FF00ul; + uint32_t r = u & 0x00FF0000ul; + uint32_t b = u & 0x000000FFul; + return o | (r >> 16) | (b << 16); +} + +static inline uint64_t // +wuffs_private_impl__swap_u64_argb_abgr(uint64_t u) { + uint64_t o = u & 0xFFFF0000FFFF0000ull; + uint64_t r = u & 0x0000FFFF00000000ull; + uint64_t b = u & 0x000000000000FFFFull; + return o | (r >> 32) | (b << 32); } -WUFFS_BASE__MAYBE_STATIC wuffs_base__result_u64 // -wuffs_base__parse_number_u64(wuffs_base__slice_u8 s, uint32_t options) { - uint8_t* p = s.ptr; - uint8_t* q = s.ptr + s.len; +static inline uint32_t // +wuffs_private_impl__color_u64__as__color_u32__swap_u32_argb_abgr(uint64_t c) { + uint32_t a = ((uint32_t)(0xFF & (c >> 56))); + uint32_t r = ((uint32_t)(0xFF & (c >> 40))); + uint32_t g = ((uint32_t)(0xFF & (c >> 24))); + uint32_t b = ((uint32_t)(0xFF & (c >> 8))); + return (a << 24) | (b << 16) | (g << 8) | (r << 0); +} - if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { - for (; (p < q) && (*p == '_'); p++) { - } +// -------- + +WUFFS_BASE__MAYBE_STATIC wuffs_base__color_u32_argb_premul // +wuffs_base__pixel_buffer__color_u32_at(const wuffs_base__pixel_buffer* pb, + uint32_t x, + uint32_t y) { + if (!pb || (x >= pb->pixcfg.private_impl.width) || + (y >= pb->pixcfg.private_impl.height)) { + return 0; } - if (p >= q) { - goto fail_bad_argument; + if (wuffs_base__pixel_format__is_planar(&pb->pixcfg.private_impl.pixfmt)) { + // TODO: support planar formats. + return 0; + } - } else if (*p == '0') { - p++; - if (p >= q) { - goto ok_zero; - } - if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { - if (*p == '_') { - p++; - for (; p < q; p++) { - if (*p != '_') { - if (options & - WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_MULTIPLE_LEADING_ZEROES) { - goto decimal; - } - goto fail_bad_argument; - } - } - goto ok_zero; - } - } + size_t stride = pb->private_impl.planes[0].stride; + const uint8_t* row = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)); - if ((*p == 'x') || (*p == 'X')) { - p++; - if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { - for (; (p < q) && (*p == '_'); p++) { - } - } - if (p < q) { - goto hexadecimal; - } + switch (pb->pixcfg.private_impl.pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: + return wuffs_base__peek_u32le__no_bounds_check(row + (4 * ((size_t)x))); - } else if ((*p == 'd') || (*p == 'D')) { - p++; - if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES) { - for (; (p < q) && (*p == '_'); p++) { - } - } - if (p < q) { - goto decimal; - } + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: { + uint8_t* palette = pb->private_impl.planes[3].ptr; + return wuffs_base__peek_u32le__no_bounds_check(palette + + (4 * ((size_t)row[x]))); } - if (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_MULTIPLE_LEADING_ZEROES) { - goto decimal; + // Common formats above. Rarer formats below. + + case WUFFS_BASE__PIXEL_FORMAT__Y: + return 0xFF000000 | (0x00010101 * ((uint32_t)(row[x]))); + case WUFFS_BASE__PIXEL_FORMAT__Y_16LE: + return 0xFF000000 | (0x00010101 * ((uint32_t)(row[(2 * x) + 1]))); + case WUFFS_BASE__PIXEL_FORMAT__Y_16BE: + return 0xFF000000 | (0x00010101 * ((uint32_t)(row[(2 * x) + 0]))); + case WUFFS_BASE__PIXEL_FORMAT__YA_NONPREMUL: + return wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( + (((uint32_t)(row[(2 * x) + 1])) << 24) | + (((uint32_t)(row[(2 * x) + 0])) * 0x00010101)); + + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: { + uint8_t* palette = pb->private_impl.planes[3].ptr; + return wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u32le__no_bounds_check(palette + + (4 * ((size_t)row[x])))); } - goto fail_bad_argument; + + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + return wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( + wuffs_base__peek_u16le__no_bounds_check(row + (2 * ((size_t)x)))); + case WUFFS_BASE__PIXEL_FORMAT__BGR: + return 0xFF000000 | + wuffs_base__peek_u24le__no_bounds_check(row + (3 * ((size_t)x))); + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + return wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u32le__no_bounds_check(row + (4 * ((size_t)x)))); + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + return wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u64le__no_bounds_check(row + (8 * ((size_t)x)))); + case WUFFS_BASE__PIXEL_FORMAT__BGRX: + return 0xFF000000 | + wuffs_base__peek_u32le__no_bounds_check(row + (4 * ((size_t)x))); + + case WUFFS_BASE__PIXEL_FORMAT__RGB: + return 0xFF000000 | + wuffs_base__peek_u24be__no_bounds_check(row + (3 * ((size_t)x))); + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + return wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u32le__no_bounds_check(row + + (4 * ((size_t)x))))); + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: + return wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(row + (4 * ((size_t)x)))); + case WUFFS_BASE__PIXEL_FORMAT__RGBX: + return wuffs_private_impl__swap_u32_argb_abgr( + 0xFF000000 | + wuffs_base__peek_u32le__no_bounds_check(row + (4 * ((size_t)x)))); + + default: + // TODO: support more formats. + break; } -decimal: - do { - uint64_t v = wuffs_base__parse_number__decimal_digits[*p++]; - if (v == 0) { - goto fail_bad_argument; - } - v &= 0x0F; + return 0; +} - // UINT64_MAX is 18446744073709551615, which is ((10 * max10) + max1). - const uint64_t max10 = 1844674407370955161u; - const uint8_t max1 = 5; +// -------- - for (; p < q; p++) { - if ((*p == '_') && - (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { - continue; - } - uint8_t digit = wuffs_base__parse_number__decimal_digits[*p]; - if (digit == 0) { - goto fail_bad_argument; - } - digit &= 0x0F; - if ((v > max10) || ((v == max10) && (digit > max1))) { - goto fail_out_of_bounds; - } - v = (10 * v) + ((uint64_t)(digit)); +WUFFS_BASE__MAYBE_STATIC wuffs_base__status // +wuffs_base__pixel_buffer__set_color_u32_at( + wuffs_base__pixel_buffer* pb, + uint32_t x, + uint32_t y, + wuffs_base__color_u32_argb_premul color) { + if (!pb) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if ((x >= pb->pixcfg.private_impl.width) || + (y >= pb->pixcfg.private_impl.height)) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + + if (wuffs_base__pixel_format__is_planar(&pb->pixcfg.private_impl.pixfmt)) { + // TODO: support planar formats. + return wuffs_base__make_status(wuffs_base__error__unsupported_option); + } + + size_t stride = pb->private_impl.planes[0].stride; + uint8_t* row = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)); + + switch (pb->pixcfg.private_impl.pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRX: + wuffs_base__poke_u32le__no_bounds_check(row + (4 * ((size_t)x)), color); + break; + + // Common formats above. Rarer formats below. + + case WUFFS_BASE__PIXEL_FORMAT__Y: + wuffs_base__poke_u8__no_bounds_check( + row + ((size_t)x), + wuffs_base__color_u32_argb_premul__as__color_u8_gray(color)); + break; + case WUFFS_BASE__PIXEL_FORMAT__Y_16LE: + wuffs_base__poke_u16le__no_bounds_check( + row + (2 * ((size_t)x)), + wuffs_base__color_u32_argb_premul__as__color_u16_gray(color)); + break; + case WUFFS_BASE__PIXEL_FORMAT__Y_16BE: + wuffs_base__poke_u16be__no_bounds_check( + row + (2 * ((size_t)x)), + wuffs_base__color_u32_argb_premul__as__color_u16_gray(color)); + break; + case WUFFS_BASE__PIXEL_FORMAT__YA_NONPREMUL: + wuffs_base__poke_u16le__no_bounds_check( + row + (2 * ((size_t)x)), + wuffs_base__color_u32_argb_premul__as__color_u16_alpha_gray_nonpremul( + color)); + break; + + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: + wuffs_base__poke_u8__no_bounds_check( + row + ((size_t)x), wuffs_base__pixel_palette__closest_element( + wuffs_base__pixel_buffer__palette(pb), + pb->pixcfg.private_impl.pixfmt, color)); + break; + + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + wuffs_base__poke_u16le__no_bounds_check( + row + (2 * ((size_t)x)), + wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565(color)); + break; + case WUFFS_BASE__PIXEL_FORMAT__BGR: + wuffs_base__poke_u24le__no_bounds_check(row + (3 * ((size_t)x)), color); + break; + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + wuffs_base__poke_u32le__no_bounds_check( + row + (4 * ((size_t)x)), + wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( + color)); + break; + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + wuffs_base__poke_u64le__no_bounds_check( + row + (8 * ((size_t)x)), + wuffs_base__color_u32_argb_premul__as__color_u64_argb_nonpremul( + color)); + break; + case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: + wuffs_base__poke_u32le__no_bounds_check( + row + (4 * ((size_t)x)), (color >> 31) ? (color | 0xFF000000) : 0); + break; + + case WUFFS_BASE__PIXEL_FORMAT__RGB: + wuffs_base__poke_u24le__no_bounds_check( + row + (3 * ((size_t)x)), + wuffs_private_impl__swap_u32_argb_abgr(color)); + break; + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + wuffs_base__poke_u32le__no_bounds_check( + row + (4 * ((size_t)x)), + wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( + wuffs_private_impl__swap_u32_argb_abgr(color))); + break; + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBX: + wuffs_base__poke_u32le__no_bounds_check( + row + (4 * ((size_t)x)), + wuffs_private_impl__swap_u32_argb_abgr(color)); + break; + + default: + // TODO: support more formats. + return wuffs_base__make_status(wuffs_base__error__unsupported_option); + } + + return wuffs_base__make_status(NULL); +} + +// -------- + +static inline void // +wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xx( + wuffs_base__pixel_buffer* pb, + wuffs_base__rect_ie_u32 rect, + uint16_t color) { + size_t stride = pb->private_impl.planes[0].stride; + uint32_t width = wuffs_base__rect_ie_u32__width(&rect); + if ((stride == (2 * ((uint64_t)width))) && (rect.min_incl_x == 0)) { + uint8_t* ptr = + pb->private_impl.planes[0].ptr + (stride * ((size_t)rect.min_incl_y)); + uint32_t height = wuffs_base__rect_ie_u32__height(&rect); + size_t n; + for (n = ((size_t)width) * ((size_t)height); n > 0; n--) { + wuffs_base__poke_u16le__no_bounds_check(ptr, color); + ptr += 2; } + return; + } - wuffs_base__result_u64 ret; - ret.status.repr = NULL; - ret.value = v; - return ret; - } while (0); + uint32_t y; + for (y = rect.min_incl_y; y < rect.max_excl_y; y++) { + uint8_t* ptr = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)) + + (2 * ((size_t)rect.min_incl_x)); + uint32_t n; + for (n = width; n > 0; n--) { + wuffs_base__poke_u16le__no_bounds_check(ptr, color); + ptr += 2; + } + } +} -hexadecimal: - do { - uint64_t v = wuffs_base__parse_number__hexadecimal_digits[*p++]; - if (v == 0) { - goto fail_bad_argument; +static inline void // +wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxx( + wuffs_base__pixel_buffer* pb, + wuffs_base__rect_ie_u32 rect, + uint32_t color) { + size_t stride = pb->private_impl.planes[0].stride; + uint32_t width = wuffs_base__rect_ie_u32__width(&rect); + if ((stride == (3 * ((uint64_t)width))) && (rect.min_incl_x == 0)) { + uint8_t* ptr = + pb->private_impl.planes[0].ptr + (stride * ((size_t)rect.min_incl_y)); + uint32_t height = wuffs_base__rect_ie_u32__height(&rect); + size_t n; + for (n = ((size_t)width) * ((size_t)height); n > 0; n--) { + wuffs_base__poke_u24le__no_bounds_check(ptr, color); + ptr += 3; } - v &= 0x0F; + return; + } - for (; p < q; p++) { - if ((*p == '_') && - (options & WUFFS_BASE__PARSE_NUMBER_XXX__ALLOW_UNDERSCORES)) { - continue; - } - uint8_t digit = wuffs_base__parse_number__hexadecimal_digits[*p]; - if (digit == 0) { - goto fail_bad_argument; - } - digit &= 0x0F; - if ((v >> 60) != 0) { - goto fail_out_of_bounds; - } - v = (v << 4) | ((uint64_t)(digit)); + uint32_t y; + for (y = rect.min_incl_y; y < rect.max_excl_y; y++) { + uint8_t* ptr = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)) + + (3 * ((size_t)rect.min_incl_x)); + uint32_t n; + for (n = width; n > 0; n--) { + wuffs_base__poke_u24le__no_bounds_check(ptr, color); + ptr += 3; } + } +} - wuffs_base__result_u64 ret; - ret.status.repr = NULL; - ret.value = v; - return ret; - } while (0); +static inline void // +wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxxx( + wuffs_base__pixel_buffer* pb, + wuffs_base__rect_ie_u32 rect, + uint32_t color) { + size_t stride = pb->private_impl.planes[0].stride; + uint32_t width = wuffs_base__rect_ie_u32__width(&rect); + if ((stride == (4 * ((uint64_t)width))) && (rect.min_incl_x == 0)) { + uint8_t* ptr = + pb->private_impl.planes[0].ptr + (stride * ((size_t)rect.min_incl_y)); + uint32_t height = wuffs_base__rect_ie_u32__height(&rect); + size_t n; + for (n = ((size_t)width) * ((size_t)height); n > 0; n--) { + wuffs_base__poke_u32le__no_bounds_check(ptr, color); + ptr += 4; + } + return; + } -ok_zero: - do { - wuffs_base__result_u64 ret; - ret.status.repr = NULL; - ret.value = 0; - return ret; - } while (0); + uint32_t y; + for (y = rect.min_incl_y; y < rect.max_excl_y; y++) { + uint8_t* ptr = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)) + + (4 * ((size_t)rect.min_incl_x)); + uint32_t n; + for (n = width; n > 0; n--) { + wuffs_base__poke_u32le__no_bounds_check(ptr, color); + ptr += 4; + } + } +} -fail_bad_argument: - do { - wuffs_base__result_u64 ret; - ret.status.repr = wuffs_base__error__bad_argument; - ret.value = 0; - return ret; - } while (0); +static inline void // +wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxxxxxxx( + wuffs_base__pixel_buffer* pb, + wuffs_base__rect_ie_u32 rect, + uint64_t color) { + size_t stride = pb->private_impl.planes[0].stride; + uint32_t width = wuffs_base__rect_ie_u32__width(&rect); + if ((stride == (8 * ((uint64_t)width))) && (rect.min_incl_x == 0)) { + uint8_t* ptr = + pb->private_impl.planes[0].ptr + (stride * ((size_t)rect.min_incl_y)); + uint32_t height = wuffs_base__rect_ie_u32__height(&rect); + size_t n; + for (n = ((size_t)width) * ((size_t)height); n > 0; n--) { + wuffs_base__poke_u64le__no_bounds_check(ptr, color); + ptr += 8; + } + return; + } -fail_out_of_bounds: - do { - wuffs_base__result_u64 ret; - ret.status.repr = wuffs_base__error__out_of_bounds; - ret.value = 0; - return ret; - } while (0); + uint32_t y; + for (y = rect.min_incl_y; y < rect.max_excl_y; y++) { + uint8_t* ptr = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)) + + (8 * ((size_t)rect.min_incl_x)); + uint32_t n; + for (n = width; n > 0; n--) { + wuffs_base__poke_u64le__no_bounds_check(ptr, color); + ptr += 8; + } + } } -// -------- +WUFFS_BASE__MAYBE_STATIC wuffs_base__status // +wuffs_base__pixel_buffer__set_color_u32_fill_rect( + wuffs_base__pixel_buffer* pb, + wuffs_base__rect_ie_u32 rect, + wuffs_base__color_u32_argb_premul color) { + if (!pb) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } else if (wuffs_base__rect_ie_u32__is_empty(&rect)) { + return wuffs_base__make_status(NULL); + } + wuffs_base__rect_ie_u32 bounds = + wuffs_base__pixel_config__bounds(&pb->pixcfg); + if (!wuffs_base__rect_ie_u32__contains_rect(&bounds, rect)) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } -// wuffs_base__render_number__first_hundred contains the decimal encodings of -// the first one hundred numbers [0 ..= 99]. -static const uint8_t wuffs_base__render_number__first_hundred[200] = { - '0', '0', '0', '1', '0', '2', '0', '3', '0', '4', // - '0', '5', '0', '6', '0', '7', '0', '8', '0', '9', // - '1', '0', '1', '1', '1', '2', '1', '3', '1', '4', // - '1', '5', '1', '6', '1', '7', '1', '8', '1', '9', // - '2', '0', '2', '1', '2', '2', '2', '3', '2', '4', // - '2', '5', '2', '6', '2', '7', '2', '8', '2', '9', // - '3', '0', '3', '1', '3', '2', '3', '3', '3', '4', // - '3', '5', '3', '6', '3', '7', '3', '8', '3', '9', // - '4', '0', '4', '1', '4', '2', '4', '3', '4', '4', // - '4', '5', '4', '6', '4', '7', '4', '8', '4', '9', // - '5', '0', '5', '1', '5', '2', '5', '3', '5', '4', // - '5', '5', '5', '6', '5', '7', '5', '8', '5', '9', // - '6', '0', '6', '1', '6', '2', '6', '3', '6', '4', // - '6', '5', '6', '6', '6', '7', '6', '8', '6', '9', // - '7', '0', '7', '1', '7', '2', '7', '3', '7', '4', // - '7', '5', '7', '6', '7', '7', '7', '8', '7', '9', // - '8', '0', '8', '1', '8', '2', '8', '3', '8', '4', // - '8', '5', '8', '6', '8', '7', '8', '8', '8', '9', // - '9', '0', '9', '1', '9', '2', '9', '3', '9', '4', // - '9', '5', '9', '6', '9', '7', '9', '8', '9', '9', // -}; + if (wuffs_base__pixel_format__is_planar(&pb->pixcfg.private_impl.pixfmt)) { + // TODO: support planar formats. + return wuffs_base__make_status(wuffs_base__error__unsupported_option); + } -static size_t // -wuffs_private_impl__render_number_u64(wuffs_base__slice_u8 dst, - uint64_t x, - uint32_t options, - bool neg) { - uint8_t buf[WUFFS_BASE__U64__BYTE_LENGTH__MAX_INCL]; - uint8_t* ptr = &buf[0] + sizeof(buf); + switch (pb->pixcfg.private_impl.pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRX: + wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxxx(pb, rect, + color); + return wuffs_base__make_status(NULL); + + // Common formats above. Rarer formats below. + + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xx( + pb, rect, + wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565(color)); + return wuffs_base__make_status(NULL); - while (x >= 100) { - size_t index = ((size_t)((x % 100) * 2)); - x /= 100; - uint8_t s0 = wuffs_base__render_number__first_hundred[index + 0]; - uint8_t s1 = wuffs_base__render_number__first_hundred[index + 1]; - ptr -= 2; - ptr[0] = s0; - ptr[1] = s1; - } + case WUFFS_BASE__PIXEL_FORMAT__BGR: + wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxx(pb, rect, + color); + return wuffs_base__make_status(NULL); - if (x < 10) { - ptr -= 1; - ptr[0] = (uint8_t)('0' + x); - } else { - size_t index = ((size_t)(x * 2)); - uint8_t s0 = wuffs_base__render_number__first_hundred[index + 0]; - uint8_t s1 = wuffs_base__render_number__first_hundred[index + 1]; - ptr -= 2; - ptr[0] = s0; - ptr[1] = s1; - } + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxxx( + pb, rect, + wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( + color)); + return wuffs_base__make_status(NULL); - if (neg) { - ptr -= 1; - ptr[0] = '-'; - } else if (options & WUFFS_BASE__RENDER_NUMBER_XXX__LEADING_PLUS_SIGN) { - ptr -= 1; - ptr[0] = '+'; + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxxxxxxx( + pb, rect, + wuffs_base__color_u32_argb_premul__as__color_u64_argb_nonpremul( + color)); + return wuffs_base__make_status(NULL); + + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxxx( + pb, rect, + wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( + wuffs_private_impl__swap_u32_argb_abgr(color))); + return wuffs_base__make_status(NULL); + + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBX: + wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxxx( + pb, rect, wuffs_private_impl__swap_u32_argb_abgr(color)); + return wuffs_base__make_status(NULL); } - size_t n = sizeof(buf) - ((size_t)(ptr - &buf[0])); - if (n > dst.len) { - return 0; + uint32_t y; + for (y = rect.min_incl_y; y < rect.max_excl_y; y++) { + uint32_t x; + for (x = rect.min_incl_x; x < rect.max_excl_x; x++) { + wuffs_base__pixel_buffer__set_color_u32_at(pb, x, y, color); + } } - memcpy(dst.ptr + ((options & WUFFS_BASE__RENDER_NUMBER_XXX__ALIGN_RIGHT) - ? (dst.len - n) - : 0), - ptr, n); - return n; + return wuffs_base__make_status(NULL); } -WUFFS_BASE__MAYBE_STATIC size_t // -wuffs_base__render_number_i64(wuffs_base__slice_u8 dst, - int64_t x, - uint32_t options) { - uint64_t u = (uint64_t)x; - bool neg = x < 0; - if (neg) { - u = 1 + ~u; +// -------- + +WUFFS_BASE__MAYBE_STATIC uint8_t // +wuffs_base__pixel_palette__closest_element( + wuffs_base__slice_u8 palette_slice, + wuffs_base__pixel_format palette_format, + wuffs_base__color_u32_argb_premul c) { + size_t n = palette_slice.len / 4; + if (n > (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { + n = (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4); } - return wuffs_private_impl__render_number_u64(dst, u, options, neg); -} + size_t best_index = 0; + uint64_t best_score = 0xFFFFFFFFFFFFFFFF; -WUFFS_BASE__MAYBE_STATIC size_t // -wuffs_base__render_number_u64(wuffs_base__slice_u8 dst, - uint64_t x, - uint32_t options) { - return wuffs_private_impl__render_number_u64(dst, x, options, false); -} + // Work in 16-bit color. + uint32_t ca = 0x101 * (0xFF & (c >> 24)); + uint32_t cr = 0x101 * (0xFF & (c >> 16)); + uint32_t cg = 0x101 * (0xFF & (c >> 8)); + uint32_t cb = 0x101 * (0xFF & (c >> 0)); -// ---------------- Base-16 + switch (palette_format.repr) { + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: { + bool nonpremul = palette_format.repr == + WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL; -WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // -wuffs_base__base_16__decode2(wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 src, - bool src_closed, - uint32_t options) { - wuffs_base__transform__output o; - size_t src_len2 = src.len / 2; - size_t len; - if (dst.len < src_len2) { - len = dst.len; - o.status.repr = wuffs_base__suspension__short_write; - } else { - len = src_len2; - if (!src_closed) { - o.status.repr = wuffs_base__suspension__short_read; - } else if (src.len & 1) { - o.status.repr = wuffs_base__error__bad_data; - } else { - o.status.repr = NULL; - } - } + size_t i; + for (i = 0; i < n; i++) { + // Work in 16-bit color. + uint32_t pb = 0x101 * ((uint32_t)(palette_slice.ptr[(4 * i) + 0])); + uint32_t pg = 0x101 * ((uint32_t)(palette_slice.ptr[(4 * i) + 1])); + uint32_t pr = 0x101 * ((uint32_t)(palette_slice.ptr[(4 * i) + 2])); + uint32_t pa = 0x101 * ((uint32_t)(palette_slice.ptr[(4 * i) + 3])); - uint8_t* d = dst.ptr; - uint8_t* s = src.ptr; - size_t n = len; + // Convert to premultiplied alpha. + if (nonpremul && (pa != 0xFFFF)) { + pb = (pb * pa) / 0xFFFF; + pg = (pg * pa) / 0xFFFF; + pr = (pr * pa) / 0xFFFF; + } - while (n--) { - *d = (uint8_t)((wuffs_base__parse_number__hexadecimal_digits[s[0]] << 4) | - (wuffs_base__parse_number__hexadecimal_digits[s[1]] & 0x0F)); - d += 1; - s += 2; + // These deltas are conceptually int32_t (signed) but after squaring, + // it's equivalent to work in uint32_t (unsigned). + pb -= cb; + pg -= cg; + pr -= cr; + pa -= ca; + uint64_t score = ((uint64_t)(pb * pb)) + ((uint64_t)(pg * pg)) + + ((uint64_t)(pr * pr)) + ((uint64_t)(pa * pa)); + if (best_score > score) { + best_score = score; + best_index = i; + } + } + break; + } } - o.num_dst = len; - o.num_src = len * 2; - return o; + return (uint8_t)best_index; } -WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // -wuffs_base__base_16__decode4(wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 src, - bool src_closed, - uint32_t options) { - wuffs_base__transform__output o; - size_t src_len4 = src.len / 4; - size_t len = dst.len < src_len4 ? dst.len : src_len4; - if (dst.len < src_len4) { - len = dst.len; - o.status.repr = wuffs_base__suspension__short_write; - } else { - len = src_len4; - if (!src_closed) { - o.status.repr = wuffs_base__suspension__short_read; - } else if (src.len & 1) { - o.status.repr = wuffs_base__error__bad_data; - } else { - o.status.repr = NULL; - } +// -------- + +static inline uint32_t // +wuffs_private_impl__composite_nonpremul_nonpremul_u32_axxx( + uint32_t dst_nonpremul, + uint32_t src_nonpremul) { + // Extract 16-bit color components. + // + // If the destination is transparent then SRC_OVER is equivalent to SRC: just + // return src_nonpremul. This isn't just an optimization (skipping the rest + // of the function's computation). It also preserves the nonpremul + // distinction between e.g. transparent red and transparent blue that would + // otherwise be lost by converting from nonpremul to premul and back. + uint32_t da = 0x101 * (0xFF & (dst_nonpremul >> 24)); + if (da == 0) { + return src_nonpremul; } + uint32_t dr = 0x101 * (0xFF & (dst_nonpremul >> 16)); + uint32_t dg = 0x101 * (0xFF & (dst_nonpremul >> 8)); + uint32_t db = 0x101 * (0xFF & (dst_nonpremul >> 0)); + uint32_t sa = 0x101 * (0xFF & (src_nonpremul >> 24)); + uint32_t sr = 0x101 * (0xFF & (src_nonpremul >> 16)); + uint32_t sg = 0x101 * (0xFF & (src_nonpremul >> 8)); + uint32_t sb = 0x101 * (0xFF & (src_nonpremul >> 0)); - uint8_t* d = dst.ptr; - uint8_t* s = src.ptr; - size_t n = len; + // Convert dst from nonpremul to premul. + dr = (dr * da) / 0xFFFF; + dg = (dg * da) / 0xFFFF; + db = (db * da) / 0xFFFF; - while (n--) { - *d = (uint8_t)((wuffs_base__parse_number__hexadecimal_digits[s[2]] << 4) | - (wuffs_base__parse_number__hexadecimal_digits[s[3]] & 0x0F)); - d += 1; - s += 4; + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; + + // Composite src (nonpremul) over dst (premul). + da = sa + ((da * ia) / 0xFFFF); + dr = ((sr * sa) + (dr * ia)) / 0xFFFF; + dg = ((sg * sa) + (dg * ia)) / 0xFFFF; + db = ((sb * sa) + (db * ia)) / 0xFFFF; + + // Convert dst from premul to nonpremul. + if (da != 0) { + dr = (dr * 0xFFFF) / da; + dg = (dg * 0xFFFF) / da; + db = (db * 0xFFFF) / da; } - o.num_dst = len; - o.num_src = len * 4; - return o; + // Convert from 16-bit color to 8-bit color. + da >>= 8; + dr >>= 8; + dg >>= 8; + db >>= 8; + + // Combine components. + return (db << 0) | (dg << 8) | (dr << 16) | (da << 24); } -WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // -wuffs_base__base_16__encode2(wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 src, - bool src_closed, - uint32_t options) { - wuffs_base__transform__output o; - size_t dst_len2 = dst.len / 2; - size_t len; - if (dst_len2 < src.len) { - len = dst_len2; - o.status.repr = wuffs_base__suspension__short_write; - } else { - len = src.len; - if (!src_closed) { - o.status.repr = wuffs_base__suspension__short_read; - } else { - o.status.repr = NULL; - } +static inline uint64_t // +wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx( + uint64_t dst_nonpremul, + uint64_t src_nonpremul) { + // Extract components. + // + // If the destination is transparent then SRC_OVER is equivalent to SRC: just + // return src_nonpremul. This isn't just an optimization (skipping the rest + // of the function's computation). It also preserves the nonpremul + // distinction between e.g. transparent red and transparent blue that would + // otherwise be lost by converting from nonpremul to premul and back. + uint64_t da = 0xFFFF & (dst_nonpremul >> 48); + if (da == 0) { + return src_nonpremul; } + uint64_t dr = 0xFFFF & (dst_nonpremul >> 32); + uint64_t dg = 0xFFFF & (dst_nonpremul >> 16); + uint64_t db = 0xFFFF & (dst_nonpremul >> 0); + uint64_t sa = 0xFFFF & (src_nonpremul >> 48); + uint64_t sr = 0xFFFF & (src_nonpremul >> 32); + uint64_t sg = 0xFFFF & (src_nonpremul >> 16); + uint64_t sb = 0xFFFF & (src_nonpremul >> 0); - uint8_t* d = dst.ptr; - uint8_t* s = src.ptr; - size_t n = len; + // Convert dst from nonpremul to premul. + dr = (dr * da) / 0xFFFF; + dg = (dg * da) / 0xFFFF; + db = (db * da) / 0xFFFF; - while (n--) { - uint8_t c = *s; - d[0] = wuffs_private_impl__encode_base16[c >> 4]; - d[1] = wuffs_private_impl__encode_base16[c & 0x0F]; - d += 2; - s += 1; + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint64_t ia = 0xFFFF - sa; + + // Composite src (nonpremul) over dst (premul). + da = sa + ((da * ia) / 0xFFFF); + dr = ((sr * sa) + (dr * ia)) / 0xFFFF; + dg = ((sg * sa) + (dg * ia)) / 0xFFFF; + db = ((sb * sa) + (db * ia)) / 0xFFFF; + + // Convert dst from premul to nonpremul. + if (da != 0) { + dr = (dr * 0xFFFF) / da; + dg = (dg * 0xFFFF) / da; + db = (db * 0xFFFF) / da; } - o.num_dst = len * 2; - o.num_src = len; - return o; + // Combine components. + return (db << 0) | (dg << 16) | (dr << 32) | (da << 48); } -WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // -wuffs_base__base_16__encode4(wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 src, - bool src_closed, - uint32_t options) { - wuffs_base__transform__output o; - size_t dst_len4 = dst.len / 4; - size_t len; - if (dst_len4 < src.len) { - len = dst_len4; - o.status.repr = wuffs_base__suspension__short_write; - } else { - len = src.len; - if (!src_closed) { - o.status.repr = wuffs_base__suspension__short_read; - } else { - o.status.repr = NULL; - } - } +static inline uint32_t // +wuffs_private_impl__composite_nonpremul_premul_u32_axxx(uint32_t dst_nonpremul, + uint32_t src_premul) { + // Extract 16-bit color components. + uint32_t da = 0x101 * (0xFF & (dst_nonpremul >> 24)); + uint32_t dr = 0x101 * (0xFF & (dst_nonpremul >> 16)); + uint32_t dg = 0x101 * (0xFF & (dst_nonpremul >> 8)); + uint32_t db = 0x101 * (0xFF & (dst_nonpremul >> 0)); + uint32_t sa = 0x101 * (0xFF & (src_premul >> 24)); + uint32_t sr = 0x101 * (0xFF & (src_premul >> 16)); + uint32_t sg = 0x101 * (0xFF & (src_premul >> 8)); + uint32_t sb = 0x101 * (0xFF & (src_premul >> 0)); - uint8_t* d = dst.ptr; - uint8_t* s = src.ptr; - size_t n = len; + // Convert dst from nonpremul to premul. + dr = (dr * da) / 0xFFFF; + dg = (dg * da) / 0xFFFF; + db = (db * da) / 0xFFFF; - while (n--) { - uint8_t c = *s; - d[0] = '\\'; - d[1] = 'x'; - d[2] = wuffs_private_impl__encode_base16[c >> 4]; - d[3] = wuffs_private_impl__encode_base16[c & 0x0F]; - d += 4; - s += 1; - } + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; - o.num_dst = len * 4; - o.num_src = len; - return o; -} + // Composite src (premul) over dst (premul). + da = sa + ((da * ia) / 0xFFFF); + dr = sr + ((dr * ia) / 0xFFFF); + dg = sg + ((dg * ia) / 0xFFFF); + db = sb + ((db * ia) / 0xFFFF); -// ---------------- Base-64 + // Convert dst from premul to nonpremul. + if (da != 0) { + dr = (dr * 0xFFFF) / da; + dg = (dg * 0xFFFF) / da; + db = (db * 0xFFFF) / da; + } -// The two base-64 alphabets, std and url, differ only in the last two codes. -// - std: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" -// - url: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_" + // Convert from 16-bit color to 8-bit color. + da >>= 8; + dr >>= 8; + dg >>= 8; + db >>= 8; -static const uint8_t wuffs_base__base_64__decode_std[256] = { - // 0 1 2 3 4 5 6 7 - // 8 9 A B C D E F - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x00 ..= 0x07. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x08 ..= 0x0F. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x10 ..= 0x17. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x18 ..= 0x1F. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x20 ..= 0x27. - 0x80, 0x80, 0x80, 0x3E, 0x80, 0x80, 0x80, 0x3F, // 0x28 ..= 0x2F. - 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, // 0x30 ..= 0x37. - 0x3C, 0x3D, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x38 ..= 0x3F. + // Combine components. + return (db << 0) | (dg << 8) | (dr << 16) | (da << 24); +} - 0x80, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, // 0x40 ..= 0x47. - 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, // 0x48 ..= 0x4F. - 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, // 0x50 ..= 0x57. - 0x17, 0x18, 0x19, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x58 ..= 0x5F. - 0x80, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, // 0x60 ..= 0x67. - 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, // 0x68 ..= 0x6F. - 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, // 0x70 ..= 0x77. - 0x31, 0x32, 0x33, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x78 ..= 0x7F. +static inline uint64_t // +wuffs_private_impl__composite_nonpremul_premul_u64_axxx(uint64_t dst_nonpremul, + uint64_t src_premul) { + // Extract components. + uint64_t da = 0xFFFF & (dst_nonpremul >> 48); + uint64_t dr = 0xFFFF & (dst_nonpremul >> 32); + uint64_t dg = 0xFFFF & (dst_nonpremul >> 16); + uint64_t db = 0xFFFF & (dst_nonpremul >> 0); + uint64_t sa = 0xFFFF & (src_premul >> 48); + uint64_t sr = 0xFFFF & (src_premul >> 32); + uint64_t sg = 0xFFFF & (src_premul >> 16); + uint64_t sb = 0xFFFF & (src_premul >> 0); - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x80 ..= 0x87. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x88 ..= 0x8F. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x90 ..= 0x97. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x98 ..= 0x9F. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xA0 ..= 0xA7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xA8 ..= 0xAF. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xB0 ..= 0xB7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xB8 ..= 0xBF. + // Convert dst from nonpremul to premul. + dr = (dr * da) / 0xFFFF; + dg = (dg * da) / 0xFFFF; + db = (db * da) / 0xFFFF; - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xC0 ..= 0xC7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xC8 ..= 0xCF. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xD0 ..= 0xD7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xD8 ..= 0xDF. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xE0 ..= 0xE7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xE8 ..= 0xEF. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF0 ..= 0xF7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF8 ..= 0xFF. - // 0 1 2 3 4 5 6 7 - // 8 9 A B C D E F -}; + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint64_t ia = 0xFFFF - sa; -static const uint8_t wuffs_base__base_64__decode_url[256] = { - // 0 1 2 3 4 5 6 7 - // 8 9 A B C D E F - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x00 ..= 0x07. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x08 ..= 0x0F. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x10 ..= 0x17. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x18 ..= 0x1F. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x20 ..= 0x27. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x3E, 0x80, 0x80, // 0x28 ..= 0x2F. - 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, // 0x30 ..= 0x37. - 0x3C, 0x3D, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x38 ..= 0x3F. + // Composite src (premul) over dst (premul). + da = sa + ((da * ia) / 0xFFFF); + dr = sr + ((dr * ia) / 0xFFFF); + dg = sg + ((dg * ia) / 0xFFFF); + db = sb + ((db * ia) / 0xFFFF); - 0x80, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, // 0x40 ..= 0x47. - 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, // 0x48 ..= 0x4F. - 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, // 0x50 ..= 0x57. - 0x17, 0x18, 0x19, 0x80, 0x80, 0x80, 0x80, 0x3F, // 0x58 ..= 0x5F. - 0x80, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, // 0x60 ..= 0x67. - 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, // 0x68 ..= 0x6F. - 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, // 0x70 ..= 0x77. - 0x31, 0x32, 0x33, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x78 ..= 0x7F. + // Convert dst from premul to nonpremul. + if (da != 0) { + dr = (dr * 0xFFFF) / da; + dg = (dg * 0xFFFF) / da; + db = (db * 0xFFFF) / da; + } - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x80 ..= 0x87. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x88 ..= 0x8F. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x90 ..= 0x97. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0x98 ..= 0x9F. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xA0 ..= 0xA7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xA8 ..= 0xAF. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xB0 ..= 0xB7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xB8 ..= 0xBF. + // Combine components. + return (db << 0) | (dg << 16) | (dr << 32) | (da << 48); +} - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xC0 ..= 0xC7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xC8 ..= 0xCF. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xD0 ..= 0xD7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xD8 ..= 0xDF. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xE0 ..= 0xE7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xE8 ..= 0xEF. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF0 ..= 0xF7. - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, // 0xF8 ..= 0xFF. - // 0 1 2 3 4 5 6 7 - // 8 9 A B C D E F -}; +static inline uint32_t // +wuffs_private_impl__composite_premul_nonpremul_u32_axxx( + uint32_t dst_premul, + uint32_t src_nonpremul) { + // Extract 16-bit color components. + uint32_t da = 0x101 * (0xFF & (dst_premul >> 24)); + uint32_t dr = 0x101 * (0xFF & (dst_premul >> 16)); + uint32_t dg = 0x101 * (0xFF & (dst_premul >> 8)); + uint32_t db = 0x101 * (0xFF & (dst_premul >> 0)); + uint32_t sa = 0x101 * (0xFF & (src_nonpremul >> 24)); + uint32_t sr = 0x101 * (0xFF & (src_nonpremul >> 16)); + uint32_t sg = 0x101 * (0xFF & (src_nonpremul >> 8)); + uint32_t sb = 0x101 * (0xFF & (src_nonpremul >> 0)); -static const uint8_t wuffs_base__base_64__encode_std[64] = { - // 0 1 2 3 4 5 6 7 - // 8 9 A B C D E F - 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, // 0x00 ..= 0x07. - 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, // 0x08 ..= 0x0F. - 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, // 0x10 ..= 0x17. - 0x59, 0x5A, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, // 0x18 ..= 0x1F. - 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, // 0x20 ..= 0x27. - 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, // 0x28 ..= 0x2F. - 0x77, 0x78, 0x79, 0x7A, 0x30, 0x31, 0x32, 0x33, // 0x30 ..= 0x37. - 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x2B, 0x2F, // 0x38 ..= 0x3F. -}; + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; -static const uint8_t wuffs_base__base_64__encode_url[64] = { - // 0 1 2 3 4 5 6 7 - // 8 9 A B C D E F - 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, // 0x00 ..= 0x07. - 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, // 0x08 ..= 0x0F. - 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, // 0x10 ..= 0x17. - 0x59, 0x5A, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, // 0x18 ..= 0x1F. - 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, // 0x20 ..= 0x27. - 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, // 0x28 ..= 0x2F. - 0x77, 0x78, 0x79, 0x7A, 0x30, 0x31, 0x32, 0x33, // 0x30 ..= 0x37. - 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x2D, 0x5F, // 0x38 ..= 0x3F. -}; + // Composite src (nonpremul) over dst (premul). + da = sa + ((da * ia) / 0xFFFF); + dr = ((sr * sa) + (dr * ia)) / 0xFFFF; + dg = ((sg * sa) + (dg * ia)) / 0xFFFF; + db = ((sb * sa) + (db * ia)) / 0xFFFF; -// -------- + // Convert from 16-bit color to 8-bit color. + da >>= 8; + dr >>= 8; + dg >>= 8; + db >>= 8; -WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // -wuffs_base__base_64__decode(wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 src, - bool src_closed, - uint32_t options) { - const uint8_t* alphabet = (options & WUFFS_BASE__BASE_64__URL_ALPHABET) - ? wuffs_base__base_64__decode_url - : wuffs_base__base_64__decode_std; - wuffs_base__transform__output o; - uint8_t* d_ptr = dst.ptr; - size_t d_len = dst.len; - const uint8_t* s_ptr = src.ptr; - size_t s_len = src.len; - bool pad = false; + // Combine components. + return (db << 0) | (dg << 8) | (dr << 16) | (da << 24); +} - while (s_len >= 4) { - uint32_t s = wuffs_base__peek_u32le__no_bounds_check(s_ptr); - uint32_t s0 = alphabet[0xFF & (s >> 0)]; - uint32_t s1 = alphabet[0xFF & (s >> 8)]; - uint32_t s2 = alphabet[0xFF & (s >> 16)]; - uint32_t s3 = alphabet[0xFF & (s >> 24)]; +static inline uint64_t // +wuffs_private_impl__composite_premul_nonpremul_u64_axxx( + uint64_t dst_premul, + uint64_t src_nonpremul) { + // Extract components. + uint64_t da = 0xFFFF & (dst_premul >> 48); + uint64_t dr = 0xFFFF & (dst_premul >> 32); + uint64_t dg = 0xFFFF & (dst_premul >> 16); + uint64_t db = 0xFFFF & (dst_premul >> 0); + uint64_t sa = 0xFFFF & (src_nonpremul >> 48); + uint64_t sr = 0xFFFF & (src_nonpremul >> 32); + uint64_t sg = 0xFFFF & (src_nonpremul >> 16); + uint64_t sb = 0xFFFF & (src_nonpremul >> 0); - if (((s0 | s1 | s2 | s3) & 0xC0) != 0) { - if (s_len > 4) { - o.status.repr = wuffs_base__error__bad_data; - goto done; - } else if (!src_closed) { - o.status.repr = wuffs_base__suspension__short_read; - goto done; - } else if ((options & WUFFS_BASE__BASE_64__DECODE_ALLOW_PADDING) && - (s_ptr[3] == '=')) { - pad = true; - if (s_ptr[2] == '=') { - goto src2; - } - goto src3; - } - o.status.repr = wuffs_base__error__bad_data; - goto done; - } + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint64_t ia = 0xFFFF - sa; - if (d_len < 3) { - o.status.repr = wuffs_base__suspension__short_write; - goto done; - } + // Composite src (nonpremul) over dst (premul). + da = sa + ((da * ia) / 0xFFFF); + dr = ((sr * sa) + (dr * ia)) / 0xFFFF; + dg = ((sg * sa) + (dg * ia)) / 0xFFFF; + db = ((sb * sa) + (db * ia)) / 0xFFFF; - s_ptr += 4; - s_len -= 4; - s = (s0 << 18) | (s1 << 12) | (s2 << 6) | (s3 << 0); - *d_ptr++ = (uint8_t)(s >> 16); - *d_ptr++ = (uint8_t)(s >> 8); - *d_ptr++ = (uint8_t)(s >> 0); - d_len -= 3; - } + // Combine components. + return (db << 0) | (dg << 16) | (dr << 32) | (da << 48); +} - if (!src_closed) { - o.status.repr = wuffs_base__suspension__short_read; - goto done; - } +static inline uint32_t // +wuffs_private_impl__composite_premul_premul_u32_axxx(uint32_t dst_premul, + uint32_t src_premul) { + // Extract 16-bit color components. + uint32_t da = 0x101 * (0xFF & (dst_premul >> 24)); + uint32_t dr = 0x101 * (0xFF & (dst_premul >> 16)); + uint32_t dg = 0x101 * (0xFF & (dst_premul >> 8)); + uint32_t db = 0x101 * (0xFF & (dst_premul >> 0)); + uint32_t sa = 0x101 * (0xFF & (src_premul >> 24)); + uint32_t sr = 0x101 * (0xFF & (src_premul >> 16)); + uint32_t sg = 0x101 * (0xFF & (src_premul >> 8)); + uint32_t sb = 0x101 * (0xFF & (src_premul >> 0)); - if (s_len == 0) { - o.status.repr = NULL; - goto done; - } else if (s_len == 1) { - o.status.repr = wuffs_base__error__bad_data; - goto done; - } else if (s_len == 2) { - goto src2; - } + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; -src3: - do { - uint32_t s = wuffs_base__peek_u24le__no_bounds_check(s_ptr); - uint32_t s0 = alphabet[0xFF & (s >> 0)]; - uint32_t s1 = alphabet[0xFF & (s >> 8)]; - uint32_t s2 = alphabet[0xFF & (s >> 16)]; - if ((s0 & 0xC0) || (s1 & 0xC0) || (s2 & 0xC3)) { - o.status.repr = wuffs_base__error__bad_data; - goto done; - } - if (d_len < 2) { - o.status.repr = wuffs_base__suspension__short_write; - goto done; - } - s_ptr += pad ? 4 : 3; - s = (s0 << 18) | (s1 << 12) | (s2 << 6); - *d_ptr++ = (uint8_t)(s >> 16); - *d_ptr++ = (uint8_t)(s >> 8); - o.status.repr = NULL; - goto done; - } while (0); + // Composite src (premul) over dst (premul). + da = sa + ((da * ia) / 0xFFFF); + dr = sr + ((dr * ia) / 0xFFFF); + dg = sg + ((dg * ia) / 0xFFFF); + db = sb + ((db * ia) / 0xFFFF); -src2: - do { - uint32_t s = wuffs_base__peek_u16le__no_bounds_check(s_ptr); - uint32_t s0 = alphabet[0xFF & (s >> 0)]; - uint32_t s1 = alphabet[0xFF & (s >> 8)]; - if ((s0 & 0xC0) || (s1 & 0xCF)) { - o.status.repr = wuffs_base__error__bad_data; - goto done; - } - if (d_len < 1) { - o.status.repr = wuffs_base__suspension__short_write; - goto done; - } - s_ptr += pad ? 4 : 2; - s = (s0 << 18) | (s1 << 12); - *d_ptr++ = (uint8_t)(s >> 16); - o.status.repr = NULL; - goto done; - } while (0); + // Convert from 16-bit color to 8-bit color. + da >>= 8; + dr >>= 8; + dg >>= 8; + db >>= 8; -done: - o.num_dst = (size_t)(d_ptr - dst.ptr); - o.num_src = (size_t)(s_ptr - src.ptr); - return o; + // Combine components. + return (db << 0) | (dg << 8) | (dr << 16) | (da << 24); } -WUFFS_BASE__MAYBE_STATIC wuffs_base__transform__output // -wuffs_base__base_64__encode(wuffs_base__slice_u8 dst, - wuffs_base__slice_u8 src, - bool src_closed, - uint32_t options) { - const uint8_t* alphabet = (options & WUFFS_BASE__BASE_64__URL_ALPHABET) - ? wuffs_base__base_64__encode_url - : wuffs_base__base_64__encode_std; - wuffs_base__transform__output o; - uint8_t* d_ptr = dst.ptr; - size_t d_len = dst.len; - const uint8_t* s_ptr = src.ptr; - size_t s_len = src.len; +// -------- - do { - while (s_len >= 3) { - if (d_len < 4) { - o.status.repr = wuffs_base__suspension__short_write; - goto done; - } - uint32_t s = wuffs_base__peek_u24be__no_bounds_check(s_ptr); - s_ptr += 3; - s_len -= 3; - *d_ptr++ = alphabet[0x3F & (s >> 18)]; - *d_ptr++ = alphabet[0x3F & (s >> 12)]; - *d_ptr++ = alphabet[0x3F & (s >> 6)]; - *d_ptr++ = alphabet[0x3F & (s >> 0)]; - d_len -= 4; - } +static uint64_t // +wuffs_private_impl__swizzle_squash_align4_bgr_565_8888(uint8_t* dst_ptr, + size_t dst_len, + const uint8_t* src_ptr, + size_t src_len, + bool nonpremul) { + size_t len = (dst_len < src_len ? dst_len : src_len) / 4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; - if (!src_closed) { - o.status.repr = wuffs_base__suspension__short_read; - goto done; + size_t n = len; + while (n--) { + uint32_t argb = wuffs_base__peek_u32le__no_bounds_check(s); + if (nonpremul) { + argb = + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul(argb); } + uint32_t b5 = 0x1F & (argb >> (8 - 5)); + uint32_t g6 = 0x3F & (argb >> (16 - 6)); + uint32_t r5 = 0x1F & (argb >> (24 - 5)); + uint32_t alpha = argb & 0xFF000000; + wuffs_base__poke_u32le__no_bounds_check( + d, alpha | (r5 << 11) | (g6 << 5) | (b5 << 0)); + s += 4; + d += 4; + } + return len; +} - if (s_len == 2) { - if (d_len < - ((options & WUFFS_BASE__BASE_64__ENCODE_EMIT_PADDING) ? 4 : 3)) { - o.status.repr = wuffs_base__suspension__short_write; - goto done; - } - uint32_t s = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(s_ptr))) - << 8; - s_ptr += 2; - *d_ptr++ = alphabet[0x3F & (s >> 18)]; - *d_ptr++ = alphabet[0x3F & (s >> 12)]; - *d_ptr++ = alphabet[0x3F & (s >> 6)]; - if (options & WUFFS_BASE__BASE_64__ENCODE_EMIT_PADDING) { - *d_ptr++ = '='; - } - o.status.repr = NULL; - goto done; +// -------- - } else if (s_len == 1) { - if (d_len < - ((options & WUFFS_BASE__BASE_64__ENCODE_EMIT_PADDING) ? 4 : 2)) { - o.status.repr = wuffs_base__suspension__short_write; - goto done; - } - uint32_t s = ((uint32_t)(wuffs_base__peek_u8__no_bounds_check(s_ptr))) - << 16; - s_ptr += 1; - *d_ptr++ = alphabet[0x3F & (s >> 18)]; - *d_ptr++ = alphabet[0x3F & (s >> 12)]; - if (options & WUFFS_BASE__BASE_64__ENCODE_EMIT_PADDING) { - *d_ptr++ = '='; - *d_ptr++ = '='; - } - o.status.repr = NULL; - goto done; +static uint64_t // +wuffs_private_impl__swizzle_squash_align4_y_8888(uint8_t* dst_ptr, + size_t dst_len, + const uint8_t* src_ptr, + size_t src_len, + bool nonpremul) { + size_t len = (dst_len < src_len ? dst_len : src_len) / 4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; - } else { - o.status.repr = NULL; - goto done; + size_t n = len; + while (n--) { + uint32_t argb = wuffs_base__peek_u32le__no_bounds_check(s); + if (nonpremul) { + argb = + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul(argb); } - } while (0); + uint32_t s0 = wuffs_base__color_u32_argb_premul__as__color_u8_gray(argb); + wuffs_base__poke_u32le__no_bounds_check( + d, (argb & 0xFF000000) | (s0 * 0x010101)); + s += 4; + d += 4; + } + return len; +} -done: - o.num_dst = (size_t)(d_ptr - dst.ptr); - o.num_src = (size_t)(s_ptr - src.ptr); - return o; +// -------- + +static uint64_t // +wuffs_private_impl__swizzle_swap_rgb_bgr(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t len = (dst_len < src_len ? dst_len : src_len) / 3; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + + size_t n = len; + while (n--) { + uint8_t s0 = s[0]; + uint8_t s1 = s[1]; + uint8_t s2 = s[2]; + d[0] = s2; + d[1] = s1; + d[2] = s0; + s += 3; + d += 3; + } + return len; } -#endif // !defined(WUFFS_CONFIG__MODULES) || - // defined(WUFFS_CONFIG__MODULE__BASE) || - // defined(WUFFS_CONFIG__MODULE__BASE__INTCONV) +// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") +static uint64_t // +wuffs_private_impl__swizzle_swap_rgbx_bgrx__x86_sse42(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t len = (dst_len < src_len ? dst_len : src_len) / 4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ - defined(WUFFS_CONFIG__MODULE__BASE__MAGIC) + __m128i shuffle = _mm_set_epi8(+0x0F, +0x0C, +0x0D, +0x0E, // + +0x0B, +0x08, +0x09, +0x0A, // + +0x07, +0x04, +0x05, +0x06, // + +0x03, +0x00, +0x01, +0x02); -// ---------------- Magic Numbers + while (n >= 4) { + __m128i x; + x = _mm_lddqu_si128((const __m128i*)(const void*)s); + x = _mm_shuffle_epi8(x, shuffle); + _mm_storeu_si128((__m128i*)(void*)d, x); -// ICO doesn't start with a magic identifier. Instead, see if the opening bytes -// are plausibly ICO. -// -// Callers should have already verified that (prefix_data.len >= 2) and the -// first two bytes are 0x00. -// -// See: -// - https://docs.fileformat.com/image/ico/ -static int32_t // -wuffs_base__magic_number_guess_fourcc__maybe_ico( - wuffs_base__slice_u8 prefix_data, - bool prefix_closed) { - // Allow-list for the Image Type field. - if (prefix_data.len < 4) { - return prefix_closed ? 0 : -1; - } else if (prefix_data.ptr[3] != 0) { - return 0; - } - switch (prefix_data.ptr[2]) { - case 0x01: // ICO - case 0x02: // CUR - break; - default: - return 0; + s += 4 * 4; + d += 4 * 4; + n -= 4; } - // The Number Of Images should be positive. - if (prefix_data.len < 6) { - return prefix_closed ? 0 : -1; - } else if ((prefix_data.ptr[4] == 0) && (prefix_data.ptr[5] == 0)) { - return 0; + while (n--) { + uint8_t s0 = s[0]; + uint8_t s1 = s[1]; + uint8_t s2 = s[2]; + uint8_t s3 = s[3]; + d[0] = s2; + d[1] = s1; + d[2] = s0; + d[3] = s3; + s += 4; + d += 4; } + return len; +} +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 - // The first ICONDIRENTRY's fourth byte should be zero. - if (prefix_data.len < 10) { - return prefix_closed ? 0 : -1; - } else if (prefix_data.ptr[9] != 0) { - return 0; - } +static uint64_t // +wuffs_private_impl__swizzle_swap_rgbx_bgrx(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t len = (dst_len < src_len ? dst_len : src_len) / 4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; - // TODO: have a separate FourCC for CUR? - return 0x49434F20; // 'ICO 'be + size_t n = len; + while (n--) { + uint8_t s0 = s[0]; + uint8_t s1 = s[1]; + uint8_t s2 = s[2]; + uint8_t s3 = s[3]; + d[0] = s2; + d[1] = s1; + d[2] = s0; + d[3] = s3; + s += 4; + d += 4; + } + return len; } -// TGA doesn't start with a magic identifier. Instead, see if the opening bytes -// are plausibly TGA. -// -// Callers should have already verified that (prefix_data.len >= 2) and the -// second byte (prefix_data.ptr[1], the Color Map Type byte), is either 0x00 or -// 0x01. -// -// See: -// - https://docs.fileformat.com/image/tga/ -// - https://www.dca.fee.unicamp.br/~martino/disciplinas/ea978/tgaffs.pdf -static int32_t // -wuffs_base__magic_number_guess_fourcc__maybe_tga( - wuffs_base__slice_u8 prefix_data, - bool prefix_closed) { - // Allow-list for the Image Type field. - if (prefix_data.len < 3) { - return prefix_closed ? 0 : -1; - } - switch (prefix_data.ptr[2]) { - case 0x01: - case 0x02: - case 0x03: - case 0x09: - case 0x0A: - case 0x0B: - break; - default: - // TODO: 0x20 and 0x21 are invalid, according to the spec, but are - // apparently unofficial extensions. - return 0; - } +// -------- - // Allow-list for the Color Map Entry Size field (if the Color Map Type field - // is non-zero) or else all the Color Map fields should be zero. - if (prefix_data.len < 8) { - return prefix_closed ? 0 : -1; - } else if (prefix_data.ptr[1] != 0x00) { - switch (prefix_data.ptr[7]) { - case 0x0F: - case 0x10: - case 0x18: - case 0x20: - break; - default: - return 0; - } - } else if ((prefix_data.ptr[3] | prefix_data.ptr[4] | prefix_data.ptr[5] | - prefix_data.ptr[6] | prefix_data.ptr[7]) != 0x00) { - return 0; +static uint64_t // +wuffs_private_impl__swizzle_copy_1_1(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t len = (dst_len < src_len) ? dst_len : src_len; + if (len > 0) { + memmove(dst_ptr, src_ptr, len); } + return len; +} - // Allow-list for the Pixel Depth field. - if (prefix_data.len < 17) { - return prefix_closed ? 0 : -1; +static uint64_t // +wuffs_private_impl__swizzle_copy_2_2(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len2 = src_len / 2; + size_t len = (dst_len2 < src_len2) ? dst_len2 : src_len2; + if (len > 0) { + memmove(dst_ptr, src_ptr, len * 2); } - switch (prefix_data.ptr[16]) { - case 0x01: - case 0x08: - case 0x0F: - case 0x10: - case 0x18: - case 0x20: - break; - default: - return 0; + return len; +} + +static uint64_t // +wuffs_private_impl__swizzle_copy_3_3(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; + size_t src_len3 = src_len / 3; + size_t len = (dst_len3 < src_len3) ? dst_len3 : src_len3; + if (len > 0) { + memmove(dst_ptr, src_ptr, len * 3); } + return len; +} - return 0x54474120; // 'TGA 'be +static uint64_t // +wuffs_private_impl__swizzle_copy_4_4(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len4 = src_len / 4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + if (len > 0) { + memmove(dst_ptr, src_ptr, len * 4); + } + return len; } -WUFFS_BASE__MAYBE_STATIC int32_t // -wuffs_base__magic_number_guess_fourcc(wuffs_base__slice_u8 prefix_data, - bool prefix_closed) { - // This is similar to (but different from): - // - the magic/Magdir tables under https://github.com/file/file - // - the MIME Sniffing algorithm at https://mimesniff.spec.whatwg.org/ +static uint64_t // +wuffs_private_impl__swizzle_copy_8_8(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; + size_t src_len8 = src_len / 8; + size_t len = (dst_len8 < src_len8) ? dst_len8 : src_len8; + if (len > 0) { + memmove(dst_ptr, src_ptr, len * 8); + } + return len; +} - // table holds the 'magic numbers' (which are actually variable length - // strings). The strings may contain NUL bytes, so the "const char* magic" - // value starts with the length-minus-1 of the 'magic number'. - // - // Keep it sorted by magic[1], then magic[0] descending (prioritizing longer - // matches) and finally by magic[2:]. When multiple entries match, the - // longest one wins. - // - // The fourcc field might be negated, in which case there's further - // specialization (see § below). - static struct { - int32_t fourcc; - const char* magic; - } table[] = { - {-0x30302020, "\x01\x00\x00"}, // '00 'be - {+0x475A2020, "\x02\x1F\x8B\x08"}, // GZ - {+0x5A535444, "\x03\x28\xB5\x2F\xFD"}, // ZSTD - {+0x425A3220, "\x02\x42\x5A\x68"}, // BZ2 - {+0x424D5020, "\x01\x42\x4D"}, // BMP - {+0x47494620, "\x03\x47\x49\x46\x38"}, // GIF - {+0x54494646, "\x03\x49\x49\x2A\x00"}, // TIFF (little-endian) - {+0x54494646, "\x03\x4D\x4D\x00\x2A"}, // TIFF (big-endian) - {+0x4E50424D, "\x02\x50\x35\x0A"}, // NPBM (P5; *.pgm) - {+0x4E50424D, "\x02\x50\x36\x0A"}, // NPBM (P6; *.ppm) - {-0x52494646, "\x03\x52\x49\x46\x46"}, // RIFF - {+0x4C5A4D41, "\x04\x5D\x00\x10\x00\x00"}, // LZMA - {+0x4C5A4D41, "\x02\x5D\x00\x00"}, // LZMA - {+0x4E494520, "\x02\x6E\xC3\xAF"}, // NIE - {+0x514F4920, "\x03\x71\x6F\x69\x66"}, // QOI - {+0x5A4C4942, "\x01\x78\x9C"}, // ZLIB - {+0x504E4720, "\x03\x89\x50\x4E\x47"}, // PNG - {+0x585A2020, "\x04\xFD\x37\x7A\x58\x5A"}, // XZ - {+0x4A504547, "\x01\xFF\xD8"}, // JPEG - }; - static const size_t table_len = sizeof(table) / sizeof(table[0]); +// -------- - if (prefix_data.len == 0) { - return prefix_closed ? 0 : -1; - } - uint8_t pre_first_byte = prefix_data.ptr[0]; +static uint64_t // +wuffs_private_impl__swizzle_bgr_565__bgr(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len3 = src_len / 3; + size_t len = (dst_len2 < src_len3) ? dst_len2 : src_len3; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - int32_t fourcc = 0; - size_t i; - for (i = 0; i < table_len; i++) { - uint8_t mag_first_byte = ((uint8_t)(table[i].magic[1])); - if (pre_first_byte < mag_first_byte) { - break; - } else if (pre_first_byte > mag_first_byte) { - continue; - } - fourcc = table[i].fourcc; + // TODO: unroll. - uint8_t mag_remaining_len = ((uint8_t)(table[i].magic[0])); - if (mag_remaining_len == 0) { - goto match; - } + while (n >= 1) { + uint32_t b5 = (uint32_t)(s[0] >> 3); + uint32_t g6 = (uint32_t)(s[1] >> 2); + uint32_t r5 = (uint32_t)(s[2] >> 3); + uint32_t rgb_565 = (r5 << 11) | (g6 << 5) | (b5 << 0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)rgb_565); - const char* mag_remaining_ptr = table[i].magic + 2; - uint8_t* pre_remaining_ptr = prefix_data.ptr + 1; - size_t pre_remaining_len = prefix_data.len - 1; - if (pre_remaining_len < mag_remaining_len) { - if (!memcmp(pre_remaining_ptr, mag_remaining_ptr, pre_remaining_len)) { - return prefix_closed ? 0 : -1; - } - } else { - if (!memcmp(pre_remaining_ptr, mag_remaining_ptr, mag_remaining_len)) { - goto match; - } - } + s += 1 * 3; + d += 1 * 2; + n -= 1; } - if (prefix_data.len < 2) { - return prefix_closed ? 0 : -1; - } else if ((prefix_data.ptr[1] == 0x00) || (prefix_data.ptr[1] == 0x01)) { - return wuffs_base__magic_number_guess_fourcc__maybe_tga(prefix_data, - prefix_closed); - } + return len; +} - return 0; +static uint64_t // +wuffs_private_impl__swizzle_bgr_565__bgrx(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len4 = src_len / 4; + size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; -match: - // Negative FourCC values (see § above) are further specialized. - if (fourcc < 0) { - fourcc = -fourcc; + // TODO: unroll. - if (fourcc == 0x52494646) { // 'RIFF'be - if (prefix_data.len < 12) { - return prefix_closed ? 0 : -1; - } - uint32_t x = wuffs_base__peek_u32be__no_bounds_check(prefix_data.ptr + 8); - if (x == 0x57454250) { // 'WEBP'be - return 0x57454250; // 'WEBP'be - } + while (n >= 1) { + uint32_t b5 = (uint32_t)(s[0] >> 3); + uint32_t g6 = (uint32_t)(s[1] >> 2); + uint32_t r5 = (uint32_t)(s[2] >> 3); + uint32_t rgb_565 = (r5 << 11) | (g6 << 5) | (b5 << 0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)rgb_565); - } else if (fourcc == 0x30302020) { // '00 'be - // Binary data starting with multiple 0x00 NUL bytes is quite common. - // Unfortunately, some file formats also don't start with a magic - // identifier, so we have to use heuristics (where the order matters, the - // same as /usr/bin/file's magic/Magdir tables) as best we can. Maybe - // it's TGA, ICO/CUR, etc. Maybe it's something else. - int32_t tga = wuffs_base__magic_number_guess_fourcc__maybe_tga( - prefix_data, prefix_closed); - if (tga != 0) { - return tga; - } - int32_t ico = wuffs_base__magic_number_guess_fourcc__maybe_ico( - prefix_data, prefix_closed); - if (ico != 0) { - return ico; - } - if (prefix_data.len < 4) { - return prefix_closed ? 0 : -1; - } else if ((prefix_data.ptr[2] != 0x00) && - ((prefix_data.ptr[2] >= 0x80) || - (prefix_data.ptr[3] != 0x00))) { - // Roughly speaking, this could be a non-degenerate (non-0-width and - // non-0-height) WBMP image. - return 0x57424D50; // 'WBMP'be - } - return 0; - } + s += 1 * 4; + d += 1 * 2; + n -= 1; } - return fourcc; + + return len; } -#endif // !defined(WUFFS_CONFIG__MODULES) || - // defined(WUFFS_CONFIG__MODULE__BASE) || - // defined(WUFFS_CONFIG__MODULE__BASE__MAGIC) +static uint64_t // +wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len4 = src_len / 4; + size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BASE) || \ - defined(WUFFS_CONFIG__MODULE__BASE__PIXCONV) + // TODO: unroll. -// ---------------- Pixel Swizzler + while (n >= 1) { + wuffs_base__poke_u16le__no_bounds_check( + d + (0 * 2), + wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))))); -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") -static uint64_t // -wuffs_private_impl__swizzle_bgrw__rgb__x86_sse42(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len); + s += 1 * 4; + d += 1 * 2; + n -= 1; + } -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") -static uint64_t // -wuffs_private_impl__swizzle_swap_rgbx_bgrx__x86_sse42(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len); + return len; +} -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") static uint64_t // -wuffs_private_impl__swizzle_xxxx__y__x86_sse42(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len); -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul_4x16le__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len8 = src_len / 8; + size_t len = (dst_len2 < src_len8) ? dst_len2 : src_len8; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; -// -------- + // TODO: unroll. -static inline uint32_t // -wuffs_private_impl__swap_u32_argb_abgr(uint32_t u) { - uint32_t o = u & 0xFF00FF00ul; - uint32_t r = u & 0x00FF0000ul; - uint32_t b = u & 0x000000FFul; - return o | (r >> 16) | (b << 16); -} + while (n >= 1) { + wuffs_base__poke_u16le__no_bounds_check( + d + (0 * 2), + wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( + wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8))))); -static inline uint64_t // -wuffs_private_impl__swap_u64_argb_abgr(uint64_t u) { - uint64_t o = u & 0xFFFF0000FFFF0000ull; - uint64_t r = u & 0x0000FFFF00000000ull; - uint64_t b = u & 0x000000000000FFFFull; - return o | (r >> 32) | (b << 32); -} + s += 1 * 8; + d += 1 * 2; + n -= 1; + } -static inline uint32_t // -wuffs_private_impl__color_u64__as__color_u32__swap_u32_argb_abgr(uint64_t c) { - uint32_t a = ((uint32_t)(0xFF & (c >> 56))); - uint32_t r = ((uint32_t)(0xFF & (c >> 40))); - uint32_t g = ((uint32_t)(0xFF & (c >> 24))); - uint32_t b = ((uint32_t)(0xFF & (c >> 8))); - return (a << 24) | (b << 16) | (g << 8) | (r << 0); + return len; } -// -------- +static uint64_t // +wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len4 = src_len / 4; + size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; -WUFFS_BASE__MAYBE_STATIC wuffs_base__color_u32_argb_premul // -wuffs_base__pixel_buffer__color_u32_at(const wuffs_base__pixel_buffer* pb, - uint32_t x, - uint32_t y) { - if (!pb || (x >= pb->pixcfg.private_impl.width) || - (y >= pb->pixcfg.private_impl.height)) { - return 0; - } + // TODO: unroll. - if (wuffs_base__pixel_format__is_planar(&pb->pixcfg.private_impl.pixfmt)) { - // TODO: support planar formats. - return 0; + while (n >= 1) { + // Extract 16-bit color components. + uint32_t sa = 0x101 * ((uint32_t)s[3]); + uint32_t sr = 0x101 * ((uint32_t)s[2]); + uint32_t sg = 0x101 * ((uint32_t)s[1]); + uint32_t sb = 0x101 * ((uint32_t)s[0]); + + // Convert from 565 color to 16-bit color. + uint32_t old_rgb_565 = wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2)); + uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); + uint32_t dr = (0x8421 * old_r5) >> 4; + uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); + uint32_t dg = (0x1041 * old_g6) >> 2; + uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); + uint32_t db = (0x8421 * old_b5) >> 4; + + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; + + // Composite src (nonpremul) over dst (premul). + dr = ((sr * sa) + (dr * ia)) / 0xFFFF; + dg = ((sg * sa) + (dg * ia)) / 0xFFFF; + db = ((sb * sa) + (db * ia)) / 0xFFFF; + + // Convert from 16-bit color to 565 color and combine the components. + uint32_t new_r5 = 0x1F & (dr >> 11); + uint32_t new_g6 = 0x3F & (dg >> 10); + uint32_t new_b5 = 0x1F & (db >> 11); + uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)new_rgb_565); + + s += 1 * 4; + d += 1 * 2; + n -= 1; } - size_t stride = pb->private_impl.planes[0].stride; - const uint8_t* row = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)); + return len; +} - switch (pb->pixcfg.private_impl.pixfmt.repr) { - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: - return wuffs_base__peek_u32le__no_bounds_check(row + (4 * ((size_t)x))); +static uint64_t // +wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul_4x16le__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len8 = src_len / 8; + size_t len = (dst_len2 < src_len8) ? dst_len2 : src_len8; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: { - uint8_t* palette = pb->private_impl.planes[3].ptr; - return wuffs_base__peek_u32le__no_bounds_check(palette + - (4 * ((size_t)row[x]))); - } + // TODO: unroll. - // Common formats above. Rarer formats below. + while (n >= 1) { + // Extract 16-bit color components. + uint32_t sa = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 6)); + uint32_t sr = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 4)); + uint32_t sg = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 2)); + uint32_t sb = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 0)); - case WUFFS_BASE__PIXEL_FORMAT__Y: - return 0xFF000000 | (0x00010101 * ((uint32_t)(row[x]))); - case WUFFS_BASE__PIXEL_FORMAT__Y_16LE: - return 0xFF000000 | (0x00010101 * ((uint32_t)(row[(2 * x) + 1]))); - case WUFFS_BASE__PIXEL_FORMAT__Y_16BE: - return 0xFF000000 | (0x00010101 * ((uint32_t)(row[(2 * x) + 0]))); + // Convert from 565 color to 16-bit color. + uint32_t old_rgb_565 = wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2)); + uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); + uint32_t dr = (0x8421 * old_r5) >> 4; + uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); + uint32_t dg = (0x1041 * old_g6) >> 2; + uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); + uint32_t db = (0x8421 * old_b5) >> 4; - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: { - uint8_t* palette = pb->private_impl.planes[3].ptr; - return wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( - wuffs_base__peek_u32le__no_bounds_check(palette + - (4 * ((size_t)row[x])))); - } + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; - case WUFFS_BASE__PIXEL_FORMAT__BGR_565: - return wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( - wuffs_base__peek_u16le__no_bounds_check(row + (2 * ((size_t)x)))); - case WUFFS_BASE__PIXEL_FORMAT__BGR: - return 0xFF000000 | - wuffs_base__peek_u24le__no_bounds_check(row + (3 * ((size_t)x))); - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: - return wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( - wuffs_base__peek_u32le__no_bounds_check(row + (4 * ((size_t)x)))); - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: - return wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul( - wuffs_base__peek_u64le__no_bounds_check(row + (8 * ((size_t)x)))); - case WUFFS_BASE__PIXEL_FORMAT__BGRX: - return 0xFF000000 | - wuffs_base__peek_u32le__no_bounds_check(row + (4 * ((size_t)x))); + // Composite src (nonpremul) over dst (premul). + dr = ((sr * sa) + (dr * ia)) / 0xFFFF; + dg = ((sg * sa) + (dg * ia)) / 0xFFFF; + db = ((sb * sa) + (db * ia)) / 0xFFFF; - case WUFFS_BASE__PIXEL_FORMAT__RGB: - return wuffs_private_impl__swap_u32_argb_abgr( - 0xFF000000 | - wuffs_base__peek_u24le__no_bounds_check(row + (3 * ((size_t)x)))); - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: - return wuffs_private_impl__swap_u32_argb_abgr( - wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( - wuffs_base__peek_u32le__no_bounds_check(row + - (4 * ((size_t)x))))); - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: - return wuffs_private_impl__swap_u32_argb_abgr( - wuffs_base__peek_u32le__no_bounds_check(row + (4 * ((size_t)x)))); - case WUFFS_BASE__PIXEL_FORMAT__RGBX: - return wuffs_private_impl__swap_u32_argb_abgr( - 0xFF000000 | - wuffs_base__peek_u32le__no_bounds_check(row + (4 * ((size_t)x)))); + // Convert from 16-bit color to 565 color and combine the components. + uint32_t new_r5 = 0x1F & (dr >> 11); + uint32_t new_g6 = 0x3F & (dg >> 10); + uint32_t new_b5 = 0x1F & (db >> 11); + uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)new_rgb_565); - default: - // TODO: support more formats. - break; + s += 1 * 8; + d += 1 * 2; + n -= 1; } - return 0; + return len; } -// -------- +static uint64_t // +wuffs_private_impl__swizzle_bgr_565__bgra_premul__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len4 = src_len / 4; + size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; + + // TODO: unroll. + + while (n >= 1) { + wuffs_base__poke_u16le__no_bounds_check( + d + (0 * 2), wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))); -WUFFS_BASE__MAYBE_STATIC wuffs_base__status // -wuffs_base__pixel_buffer__set_color_u32_at( - wuffs_base__pixel_buffer* pb, - uint32_t x, - uint32_t y, - wuffs_base__color_u32_argb_premul color) { - if (!pb) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if ((x >= pb->pixcfg.private_impl.width) || - (y >= pb->pixcfg.private_impl.height)) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); + s += 1 * 4; + d += 1 * 2; + n -= 1; } - if (wuffs_base__pixel_format__is_planar(&pb->pixcfg.private_impl.pixfmt)) { - // TODO: support planar formats. - return wuffs_base__make_status(wuffs_base__error__unsupported_option); - } + return len; +} - size_t stride = pb->private_impl.planes[0].stride; - uint8_t* row = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)); +static uint64_t // +wuffs_private_impl__swizzle_bgr_565__bgra_premul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len4 = src_len / 4; + size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - switch (pb->pixcfg.private_impl.pixfmt.repr) { - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRX: - wuffs_base__poke_u32le__no_bounds_check(row + (4 * ((size_t)x)), color); - break; + // TODO: unroll. - // Common formats above. Rarer formats below. + while (n >= 1) { + // Extract 16-bit color components. + uint32_t sa = 0x101 * ((uint32_t)s[3]); + uint32_t sr = 0x101 * ((uint32_t)s[2]); + uint32_t sg = 0x101 * ((uint32_t)s[1]); + uint32_t sb = 0x101 * ((uint32_t)s[0]); - case WUFFS_BASE__PIXEL_FORMAT__Y: - wuffs_base__poke_u8__no_bounds_check( - row + ((size_t)x), - wuffs_base__color_u32_argb_premul__as__color_u8_gray(color)); - break; - case WUFFS_BASE__PIXEL_FORMAT__Y_16LE: - wuffs_base__poke_u16le__no_bounds_check( - row + (2 * ((size_t)x)), - wuffs_base__color_u32_argb_premul__as__color_u16_gray(color)); - break; - case WUFFS_BASE__PIXEL_FORMAT__Y_16BE: - wuffs_base__poke_u16be__no_bounds_check( - row + (2 * ((size_t)x)), - wuffs_base__color_u32_argb_premul__as__color_u16_gray(color)); - break; + // Convert from 565 color to 16-bit color. + uint32_t old_rgb_565 = wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2)); + uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); + uint32_t dr = (0x8421 * old_r5) >> 4; + uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); + uint32_t dg = (0x1041 * old_g6) >> 2; + uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); + uint32_t db = (0x8421 * old_b5) >> 4; - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: - wuffs_base__poke_u8__no_bounds_check( - row + ((size_t)x), wuffs_base__pixel_palette__closest_element( - wuffs_base__pixel_buffer__palette(pb), - pb->pixcfg.private_impl.pixfmt, color)); - break; + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; - case WUFFS_BASE__PIXEL_FORMAT__BGR_565: - wuffs_base__poke_u16le__no_bounds_check( - row + (2 * ((size_t)x)), - wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565(color)); - break; - case WUFFS_BASE__PIXEL_FORMAT__BGR: - wuffs_base__poke_u24le__no_bounds_check(row + (3 * ((size_t)x)), color); - break; - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: - wuffs_base__poke_u32le__no_bounds_check( - row + (4 * ((size_t)x)), - wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( - color)); - break; - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: - wuffs_base__poke_u64le__no_bounds_check( - row + (8 * ((size_t)x)), - wuffs_base__color_u32_argb_premul__as__color_u64_argb_nonpremul( - color)); - break; + // Composite src (premul) over dst (premul). + dr = sr + ((dr * ia) / 0xFFFF); + dg = sg + ((dg * ia) / 0xFFFF); + db = sb + ((db * ia) / 0xFFFF); - case WUFFS_BASE__PIXEL_FORMAT__RGB: - wuffs_base__poke_u24le__no_bounds_check( - row + (3 * ((size_t)x)), - wuffs_private_impl__swap_u32_argb_abgr(color)); - break; - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: - wuffs_base__poke_u32le__no_bounds_check( - row + (4 * ((size_t)x)), - wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( - wuffs_private_impl__swap_u32_argb_abgr(color))); - break; - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBX: - wuffs_base__poke_u32le__no_bounds_check( - row + (4 * ((size_t)x)), - wuffs_private_impl__swap_u32_argb_abgr(color)); - break; + // Convert from 16-bit color to 565 color and combine the components. + uint32_t new_r5 = 0x1F & (dr >> 11); + uint32_t new_g6 = 0x3F & (dg >> 10); + uint32_t new_b5 = 0x1F & (db >> 11); + uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)new_rgb_565); - default: - // TODO: support more formats. - return wuffs_base__make_status(wuffs_base__error__unsupported_option); + s += 1 * 4; + d += 1 * 2; + n -= 1; } - return wuffs_base__make_status(NULL); + return len; } -// -------- +static uint64_t // +wuffs_private_impl__swizzle_bgr_565__rgb(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len3 = src_len / 3; + size_t len = (dst_len2 < src_len3) ? dst_len2 : src_len3; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; -static inline void // -wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xx( - wuffs_base__pixel_buffer* pb, - wuffs_base__rect_ie_u32 rect, - uint16_t color) { - size_t stride = pb->private_impl.planes[0].stride; - uint32_t width = wuffs_base__rect_ie_u32__width(&rect); - if ((stride == (2 * ((uint64_t)width))) && (rect.min_incl_x == 0)) { - uint8_t* ptr = - pb->private_impl.planes[0].ptr + (stride * ((size_t)rect.min_incl_y)); - uint32_t height = wuffs_base__rect_ie_u32__height(&rect); - size_t n; - for (n = ((size_t)width) * ((size_t)height); n > 0; n--) { - wuffs_base__poke_u16le__no_bounds_check(ptr, color); - ptr += 2; - } - return; - } + // TODO: unroll. - uint32_t y; - for (y = rect.min_incl_y; y < rect.max_excl_y; y++) { - uint8_t* ptr = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)) + - (2 * ((size_t)rect.min_incl_x)); - uint32_t n; - for (n = width; n > 0; n--) { - wuffs_base__poke_u16le__no_bounds_check(ptr, color); - ptr += 2; - } - } -} + while (n >= 1) { + uint32_t r5 = (uint32_t)(s[0] >> 3); + uint32_t g6 = (uint32_t)(s[1] >> 2); + uint32_t b5 = (uint32_t)(s[2] >> 3); + uint32_t rgb_565 = (r5 << 11) | (g6 << 5) | (b5 << 0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)rgb_565); -static inline void // -wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxx( - wuffs_base__pixel_buffer* pb, - wuffs_base__rect_ie_u32 rect, - uint32_t color) { - size_t stride = pb->private_impl.planes[0].stride; - uint32_t width = wuffs_base__rect_ie_u32__width(&rect); - if ((stride == (3 * ((uint64_t)width))) && (rect.min_incl_x == 0)) { - uint8_t* ptr = - pb->private_impl.planes[0].ptr + (stride * ((size_t)rect.min_incl_y)); - uint32_t height = wuffs_base__rect_ie_u32__height(&rect); - size_t n; - for (n = ((size_t)width) * ((size_t)height); n > 0; n--) { - wuffs_base__poke_u24le__no_bounds_check(ptr, color); - ptr += 3; - } - return; + s += 1 * 3; + d += 1 * 2; + n -= 1; } - uint32_t y; - for (y = rect.min_incl_y; y < rect.max_excl_y; y++) { - uint8_t* ptr = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)) + - (3 * ((size_t)rect.min_incl_x)); - uint32_t n; - for (n = width; n > 0; n--) { - wuffs_base__poke_u24le__no_bounds_check(ptr, color); - ptr += 3; - } - } + return len; } -static inline void // -wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxxx( - wuffs_base__pixel_buffer* pb, - wuffs_base__rect_ie_u32 rect, - uint32_t color) { - size_t stride = pb->private_impl.planes[0].stride; - uint32_t width = wuffs_base__rect_ie_u32__width(&rect); - if ((stride == (4 * ((uint64_t)width))) && (rect.min_incl_x == 0)) { - uint8_t* ptr = - pb->private_impl.planes[0].ptr + (stride * ((size_t)rect.min_incl_y)); - uint32_t height = wuffs_base__rect_ie_u32__height(&rect); - size_t n; - for (n = ((size_t)width) * ((size_t)height); n > 0; n--) { - wuffs_base__poke_u32le__no_bounds_check(ptr, color); - ptr += 4; - } - return; - } - - uint32_t y; - for (y = rect.min_incl_y; y < rect.max_excl_y; y++) { - uint8_t* ptr = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)) + - (4 * ((size_t)rect.min_incl_x)); - uint32_t n; - for (n = width; n > 0; n--) { - wuffs_base__poke_u32le__no_bounds_check(ptr, color); - ptr += 4; - } - } -} +static uint64_t // +wuffs_private_impl__swizzle_bgr_565__rgba_nonpremul__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len4 = src_len / 4; + size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; -static inline void // -wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxxxxxxx( - wuffs_base__pixel_buffer* pb, - wuffs_base__rect_ie_u32 rect, - uint64_t color) { - size_t stride = pb->private_impl.planes[0].stride; - uint32_t width = wuffs_base__rect_ie_u32__width(&rect); - if ((stride == (8 * ((uint64_t)width))) && (rect.min_incl_x == 0)) { - uint8_t* ptr = - pb->private_impl.planes[0].ptr + (stride * ((size_t)rect.min_incl_y)); - uint32_t height = wuffs_base__rect_ie_u32__height(&rect); - size_t n; - for (n = ((size_t)width) * ((size_t)height); n > 0; n--) { - wuffs_base__poke_u64le__no_bounds_check(ptr, color); - ptr += 8; - } - return; - } + // TODO: unroll. - uint32_t y; - for (y = rect.min_incl_y; y < rect.max_excl_y; y++) { - uint8_t* ptr = pb->private_impl.planes[0].ptr + (stride * ((size_t)y)) + - (8 * ((size_t)rect.min_incl_x)); - uint32_t n; - for (n = width; n > 0; n--) { - wuffs_base__poke_u64le__no_bounds_check(ptr, color); - ptr += 8; - } - } -} + while (n >= 1) { + wuffs_base__poke_u16le__no_bounds_check( + d + (0 * 2), + wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( + wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))))); -WUFFS_BASE__MAYBE_STATIC wuffs_base__status // -wuffs_base__pixel_buffer__set_color_u32_fill_rect( - wuffs_base__pixel_buffer* pb, - wuffs_base__rect_ie_u32 rect, - wuffs_base__color_u32_argb_premul color) { - if (!pb) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } else if (wuffs_base__rect_ie_u32__is_empty(&rect)) { - return wuffs_base__make_status(NULL); - } - wuffs_base__rect_ie_u32 bounds = - wuffs_base__pixel_config__bounds(&pb->pixcfg); - if (!wuffs_base__rect_ie_u32__contains_rect(&bounds, rect)) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); + s += 1 * 4; + d += 1 * 2; + n -= 1; } - if (wuffs_base__pixel_format__is_planar(&pb->pixcfg.private_impl.pixfmt)) { - // TODO: support planar formats. - return wuffs_base__make_status(wuffs_base__error__unsupported_option); - } + return len; +} - switch (pb->pixcfg.private_impl.pixfmt.repr) { - case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__BGRX: - wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxxx(pb, rect, - color); - return wuffs_base__make_status(NULL); +static uint64_t // +wuffs_private_impl__swizzle_bgr_565__rgba_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len4 = src_len / 4; + size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - // Common formats above. Rarer formats below. + // TODO: unroll. - case WUFFS_BASE__PIXEL_FORMAT__BGR_565: - wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xx( - pb, rect, - wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565(color)); - return wuffs_base__make_status(NULL); + while (n >= 1) { + // Extract 16-bit color components. + uint32_t sa = 0x101 * ((uint32_t)s[3]); + uint32_t sb = 0x101 * ((uint32_t)s[2]); + uint32_t sg = 0x101 * ((uint32_t)s[1]); + uint32_t sr = 0x101 * ((uint32_t)s[0]); - case WUFFS_BASE__PIXEL_FORMAT__BGR: - wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxx(pb, rect, - color); - return wuffs_base__make_status(NULL); + // Convert from 565 color to 16-bit color. + uint32_t old_rgb_565 = wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2)); + uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); + uint32_t dr = (0x8421 * old_r5) >> 4; + uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); + uint32_t dg = (0x1041 * old_g6) >> 2; + uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); + uint32_t db = (0x8421 * old_b5) >> 4; - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: - wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxxx( - pb, rect, - wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( - color)); - return wuffs_base__make_status(NULL); + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; - case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: - wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxxxxxxx( - pb, rect, - wuffs_base__color_u32_argb_premul__as__color_u64_argb_nonpremul( - color)); - return wuffs_base__make_status(NULL); + // Composite src (nonpremul) over dst (premul). + dr = ((sr * sa) + (dr * ia)) / 0xFFFF; + dg = ((sg * sa) + (dg * ia)) / 0xFFFF; + db = ((sb * sa) + (db * ia)) / 0xFFFF; - case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: - wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxxx( - pb, rect, - wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( - wuffs_private_impl__swap_u32_argb_abgr(color))); - return wuffs_base__make_status(NULL); + // Convert from 16-bit color to 565 color and combine the components. + uint32_t new_r5 = 0x1F & (dr >> 11); + uint32_t new_g6 = 0x3F & (dg >> 10); + uint32_t new_b5 = 0x1F & (db >> 11); + uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)new_rgb_565); - case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__RGBX: - wuffs_private_impl__pixel_buffer__set_color_u32_fill_rect__xxxx( - pb, rect, wuffs_private_impl__swap_u32_argb_abgr(color)); - return wuffs_base__make_status(NULL); + s += 1 * 4; + d += 1 * 2; + n -= 1; } - uint32_t y; - for (y = rect.min_incl_y; y < rect.max_excl_y; y++) { - uint32_t x; - for (x = rect.min_incl_x; x < rect.max_excl_x; x++) { - wuffs_base__pixel_buffer__set_color_u32_at(pb, x, y, color); - } - } - return wuffs_base__make_status(NULL); + return len; } -// -------- - -WUFFS_BASE__MAYBE_STATIC uint8_t // -wuffs_base__pixel_palette__closest_element( - wuffs_base__slice_u8 palette_slice, - wuffs_base__pixel_format palette_format, - wuffs_base__color_u32_argb_premul c) { - size_t n = palette_slice.len / 4; - if (n > (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { - n = (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4); - } - size_t best_index = 0; - uint64_t best_score = 0xFFFFFFFFFFFFFFFF; +static uint64_t // +wuffs_private_impl__swizzle_bgr_565__rgba_premul__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len4 = src_len / 4; + size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - // Work in 16-bit color. - uint32_t ca = 0x101 * (0xFF & (c >> 24)); - uint32_t cr = 0x101 * (0xFF & (c >> 16)); - uint32_t cg = 0x101 * (0xFF & (c >> 8)); - uint32_t cb = 0x101 * (0xFF & (c >> 0)); + // TODO: unroll. - switch (palette_format.repr) { - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL: - case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: { - bool nonpremul = palette_format.repr == - WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL; + while (n >= 1) { + wuffs_base__poke_u16le__no_bounds_check( + d + (0 * 2), + wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( + wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))))); - size_t i; - for (i = 0; i < n; i++) { - // Work in 16-bit color. - uint32_t pb = 0x101 * ((uint32_t)(palette_slice.ptr[(4 * i) + 0])); - uint32_t pg = 0x101 * ((uint32_t)(palette_slice.ptr[(4 * i) + 1])); - uint32_t pr = 0x101 * ((uint32_t)(palette_slice.ptr[(4 * i) + 2])); - uint32_t pa = 0x101 * ((uint32_t)(palette_slice.ptr[(4 * i) + 3])); + s += 1 * 4; + d += 1 * 2; + n -= 1; + } - // Convert to premultiplied alpha. - if (nonpremul && (pa != 0xFFFF)) { - pb = (pb * pa) / 0xFFFF; - pg = (pg * pa) / 0xFFFF; - pr = (pr * pa) / 0xFFFF; - } + return len; +} - // These deltas are conceptually int32_t (signed) but after squaring, - // it's equivalent to work in uint32_t (unsigned). - pb -= cb; - pg -= cg; - pr -= cr; - pa -= ca; - uint64_t score = ((uint64_t)(pb * pb)) + ((uint64_t)(pg * pg)) + - ((uint64_t)(pr * pr)) + ((uint64_t)(pa * pa)); - if (best_score > score) { - best_score = score; - best_index = i; - } - } - break; - } - } +static uint64_t // +wuffs_private_impl__swizzle_bgr_565__rgba_premul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len4 = src_len / 4; + size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - return (uint8_t)best_index; -} + // TODO: unroll. -// -------- + while (n >= 1) { + // Extract 16-bit color components. + uint32_t sa = 0x101 * ((uint32_t)s[3]); + uint32_t sb = 0x101 * ((uint32_t)s[2]); + uint32_t sg = 0x101 * ((uint32_t)s[1]); + uint32_t sr = 0x101 * ((uint32_t)s[0]); -static inline uint32_t // -wuffs_private_impl__composite_nonpremul_nonpremul_u32_axxx( - uint32_t dst_nonpremul, - uint32_t src_nonpremul) { - // Extract 16-bit color components. - // - // If the destination is transparent then SRC_OVER is equivalent to SRC: just - // return src_nonpremul. This isn't just an optimization (skipping the rest - // of the function's computation). It also preserves the nonpremul - // distinction between e.g. transparent red and transparent blue that would - // otherwise be lost by converting from nonpremul to premul and back. - uint32_t da = 0x101 * (0xFF & (dst_nonpremul >> 24)); - if (da == 0) { - return src_nonpremul; - } - uint32_t dr = 0x101 * (0xFF & (dst_nonpremul >> 16)); - uint32_t dg = 0x101 * (0xFF & (dst_nonpremul >> 8)); - uint32_t db = 0x101 * (0xFF & (dst_nonpremul >> 0)); - uint32_t sa = 0x101 * (0xFF & (src_nonpremul >> 24)); - uint32_t sr = 0x101 * (0xFF & (src_nonpremul >> 16)); - uint32_t sg = 0x101 * (0xFF & (src_nonpremul >> 8)); - uint32_t sb = 0x101 * (0xFF & (src_nonpremul >> 0)); + // Convert from 565 color to 16-bit color. + uint32_t old_rgb_565 = wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2)); + uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); + uint32_t dr = (0x8421 * old_r5) >> 4; + uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); + uint32_t dg = (0x1041 * old_g6) >> 2; + uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); + uint32_t db = (0x8421 * old_b5) >> 4; - // Convert dst from nonpremul to premul. - dr = (dr * da) / 0xFFFF; - dg = (dg * da) / 0xFFFF; - db = (db * da) / 0xFFFF; + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; + // Composite src (premul) over dst (premul). + dr = sr + ((dr * ia) / 0xFFFF); + dg = sg + ((dg * ia) / 0xFFFF); + db = sb + ((db * ia) / 0xFFFF); - // Composite src (nonpremul) over dst (premul). - da = sa + ((da * ia) / 0xFFFF); - dr = ((sr * sa) + (dr * ia)) / 0xFFFF; - dg = ((sg * sa) + (dg * ia)) / 0xFFFF; - db = ((sb * sa) + (db * ia)) / 0xFFFF; + // Convert from 16-bit color to 565 color and combine the components. + uint32_t new_r5 = 0x1F & (dr >> 11); + uint32_t new_g6 = 0x3F & (dg >> 10); + uint32_t new_b5 = 0x1F & (db >> 11); + uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)new_rgb_565); - // Convert dst from premul to nonpremul. - if (da != 0) { - dr = (dr * 0xFFFF) / da; - dg = (dg * 0xFFFF) / da; - db = (db * 0xFFFF) / da; + s += 1 * 4; + d += 1 * 2; + n -= 1; } - // Convert from 16-bit color to 8-bit color. - da >>= 8; - dr >>= 8; - dg >>= 8; - db >>= 8; - - // Combine components. - return (db << 0) | (dg << 8) | (dr << 16) | (da << 24); + return len; } -static inline uint64_t // -wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx( - uint64_t dst_nonpremul, - uint64_t src_nonpremul) { - // Extract components. - // - // If the destination is transparent then SRC_OVER is equivalent to SRC: just - // return src_nonpremul. This isn't just an optimization (skipping the rest - // of the function's computation). It also preserves the nonpremul - // distinction between e.g. transparent red and transparent blue that would - // otherwise be lost by converting from nonpremul to premul and back. - uint64_t da = 0xFFFF & (dst_nonpremul >> 48); - if (da == 0) { - return src_nonpremul; - } - uint64_t dr = 0xFFFF & (dst_nonpremul >> 32); - uint64_t dg = 0xFFFF & (dst_nonpremul >> 16); - uint64_t db = 0xFFFF & (dst_nonpremul >> 0); - uint64_t sa = 0xFFFF & (src_nonpremul >> 48); - uint64_t sr = 0xFFFF & (src_nonpremul >> 32); - uint64_t sg = 0xFFFF & (src_nonpremul >> 16); - uint64_t sb = 0xFFFF & (src_nonpremul >> 0); - - // Convert dst from nonpremul to premul. - dr = (dr * da) / 0xFFFF; - dg = (dg * da) / 0xFFFF; - db = (db * da) / 0xFFFF; +static uint64_t // +wuffs_private_impl__swizzle_bgr_565__y(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t len = (dst_len2 < src_len) ? dst_len2 : src_len; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint64_t ia = 0xFFFF - sa; + // TODO: unroll. - // Composite src (nonpremul) over dst (premul). - da = sa + ((da * ia) / 0xFFFF); - dr = ((sr * sa) + (dr * ia)) / 0xFFFF; - dg = ((sg * sa) + (dg * ia)) / 0xFFFF; - db = ((sb * sa) + (db * ia)) / 0xFFFF; + while (n >= 1) { + uint32_t y5 = (uint32_t)(s[0] >> 3); + uint32_t y6 = (uint32_t)(s[0] >> 2); + uint32_t rgb_565 = (y5 << 11) | (y6 << 5) | (y5 << 0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)rgb_565); - // Convert dst from premul to nonpremul. - if (da != 0) { - dr = (dr * 0xFFFF) / da; - dg = (dg * 0xFFFF) / da; - db = (db * 0xFFFF) / da; + s += 1 * 1; + d += 1 * 2; + n -= 1; } - // Combine components. - return (db << 0) | (dg << 16) | (dr << 32) | (da << 48); + return len; } -static inline uint32_t // -wuffs_private_impl__composite_nonpremul_premul_u32_axxx(uint32_t dst_nonpremul, - uint32_t src_premul) { - // Extract 16-bit color components. - uint32_t da = 0x101 * (0xFF & (dst_nonpremul >> 24)); - uint32_t dr = 0x101 * (0xFF & (dst_nonpremul >> 16)); - uint32_t dg = 0x101 * (0xFF & (dst_nonpremul >> 8)); - uint32_t db = 0x101 * (0xFF & (dst_nonpremul >> 0)); - uint32_t sa = 0x101 * (0xFF & (src_premul >> 24)); - uint32_t sr = 0x101 * (0xFF & (src_premul >> 16)); - uint32_t sg = 0x101 * (0xFF & (src_premul >> 8)); - uint32_t sb = 0x101 * (0xFF & (src_premul >> 0)); - - // Convert dst from nonpremul to premul. - dr = (dr * da) / 0xFFFF; - dg = (dg * da) / 0xFFFF; - db = (db * da) / 0xFFFF; +static uint64_t // +wuffs_private_impl__swizzle_bgr_565__y_16be(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len2 = src_len / 2; + size_t len = (dst_len2 < src_len2) ? dst_len2 : src_len2; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; + // TODO: unroll. - // Composite src (premul) over dst (premul). - da = sa + ((da * ia) / 0xFFFF); - dr = sr + ((dr * ia) / 0xFFFF); - dg = sg + ((dg * ia) / 0xFFFF); - db = sb + ((db * ia) / 0xFFFF); + while (n >= 1) { + uint32_t y5 = (uint32_t)(s[0] >> 3); + uint32_t y6 = (uint32_t)(s[0] >> 2); + uint32_t rgb_565 = (y5 << 11) | (y6 << 5) | (y5 << 0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)rgb_565); - // Convert dst from premul to nonpremul. - if (da != 0) { - dr = (dr * 0xFFFF) / da; - dg = (dg * 0xFFFF) / da; - db = (db * 0xFFFF) / da; + s += 1 * 2; + d += 1 * 2; + n -= 1; } - // Convert from 16-bit color to 8-bit color. - da >>= 8; - dr >>= 8; - dg >>= 8; - db >>= 8; - - // Combine components. - return (db << 0) | (dg << 8) | (dr << 16) | (da << 24); + return len; } -static inline uint64_t // -wuffs_private_impl__composite_nonpremul_premul_u64_axxx(uint64_t dst_nonpremul, - uint64_t src_premul) { - // Extract components. - uint64_t da = 0xFFFF & (dst_nonpremul >> 48); - uint64_t dr = 0xFFFF & (dst_nonpremul >> 32); - uint64_t dg = 0xFFFF & (dst_nonpremul >> 16); - uint64_t db = 0xFFFF & (dst_nonpremul >> 0); - uint64_t sa = 0xFFFF & (src_premul >> 48); - uint64_t sr = 0xFFFF & (src_premul >> 32); - uint64_t sg = 0xFFFF & (src_premul >> 16); - uint64_t sb = 0xFFFF & (src_premul >> 0); +static uint64_t // +wuffs_private_impl__swizzle_bgr_565__ya_nonpremul__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len2 = src_len / 2; + size_t len = (dst_len2 < src_len2) ? dst_len2 : src_len2; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - // Convert dst from nonpremul to premul. - dr = (dr * da) / 0xFFFF; - dg = (dg * da) / 0xFFFF; - db = (db * da) / 0xFFFF; + // TODO: unroll. - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint64_t ia = 0xFFFF - sa; + while (n >= 1) { + uint32_t s0 = ((uint32_t)(s[1]) << 24) | ((uint32_t)(s[0]) * 0x010101); - // Composite src (premul) over dst (premul). - da = sa + ((da * ia) / 0xFFFF); - dr = sr + ((dr * ia) / 0xFFFF); - dg = sg + ((dg * ia) / 0xFFFF); - db = sb + ((db * ia) / 0xFFFF); + wuffs_base__poke_u16le__no_bounds_check( + d + (0 * 2), + wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( + s0))); - // Convert dst from premul to nonpremul. - if (da != 0) { - dr = (dr * 0xFFFF) / da; - dg = (dg * 0xFFFF) / da; - db = (db * 0xFFFF) / da; + s += 1 * 2; + d += 1 * 2; + n -= 1; } - // Combine components. - return (db << 0) | (dg << 16) | (dr << 32) | (da << 48); + return len; } -static inline uint32_t // -wuffs_private_impl__composite_premul_nonpremul_u32_axxx( - uint32_t dst_premul, - uint32_t src_nonpremul) { - // Extract 16-bit color components. - uint32_t da = 0x101 * (0xFF & (dst_premul >> 24)); - uint32_t dr = 0x101 * (0xFF & (dst_premul >> 16)); - uint32_t dg = 0x101 * (0xFF & (dst_premul >> 8)); - uint32_t db = 0x101 * (0xFF & (dst_premul >> 0)); - uint32_t sa = 0x101 * (0xFF & (src_nonpremul >> 24)); - uint32_t sr = 0x101 * (0xFF & (src_nonpremul >> 16)); - uint32_t sg = 0x101 * (0xFF & (src_nonpremul >> 8)); - uint32_t sb = 0x101 * (0xFF & (src_nonpremul >> 0)); +static uint64_t // +wuffs_private_impl__swizzle_bgr_565__ya_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; + size_t src_len2 = src_len / 2; + size_t len = (dst_len2 < src_len2) ? dst_len2 : src_len2; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; + // TODO: unroll. - // Composite src (nonpremul) over dst (premul). - da = sa + ((da * ia) / 0xFFFF); - dr = ((sr * sa) + (dr * ia)) / 0xFFFF; - dg = ((sg * sa) + (dg * ia)) / 0xFFFF; - db = ((sb * sa) + (db * ia)) / 0xFFFF; + while (n >= 1) { + // Extract 16-bit color components. + uint32_t sa = 0x101 * ((uint32_t)s[1]); + uint32_t sy = 0x101 * ((uint32_t)s[0]); - // Convert from 16-bit color to 8-bit color. - da >>= 8; - dr >>= 8; - dg >>= 8; - db >>= 8; + // Convert from 565 color to 16-bit color. + uint32_t old_rgb_565 = wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2)); + uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); + uint32_t dr = (0x8421 * old_r5) >> 4; + uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); + uint32_t dg = (0x1041 * old_g6) >> 2; + uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); + uint32_t db = (0x8421 * old_b5) >> 4; - // Combine components. - return (db << 0) | (dg << 8) | (dr << 16) | (da << 24); -} + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; -static inline uint64_t // -wuffs_private_impl__composite_premul_nonpremul_u64_axxx( - uint64_t dst_premul, - uint64_t src_nonpremul) { - // Extract components. - uint64_t da = 0xFFFF & (dst_premul >> 48); - uint64_t dr = 0xFFFF & (dst_premul >> 32); - uint64_t dg = 0xFFFF & (dst_premul >> 16); - uint64_t db = 0xFFFF & (dst_premul >> 0); - uint64_t sa = 0xFFFF & (src_nonpremul >> 48); - uint64_t sr = 0xFFFF & (src_nonpremul >> 32); - uint64_t sg = 0xFFFF & (src_nonpremul >> 16); - uint64_t sb = 0xFFFF & (src_nonpremul >> 0); + // Composite src (nonpremul) over dst (premul). + dr = ((sy * sa) + (dr * ia)) / 0xFFFF; + dg = ((sy * sa) + (dg * ia)) / 0xFFFF; + db = ((sy * sa) + (db * ia)) / 0xFFFF; - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint64_t ia = 0xFFFF - sa; + // Convert from 16-bit color to 565 color and combine the components. + uint32_t new_r5 = 0x1F & (dr >> 11); + uint32_t new_g6 = 0x3F & (dg >> 10); + uint32_t new_b5 = 0x1F & (db >> 11); + uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)new_rgb_565); - // Composite src (nonpremul) over dst (premul). - da = sa + ((da * ia) / 0xFFFF); - dr = ((sr * sa) + (dr * ia)) / 0xFFFF; - dg = ((sg * sa) + (dg * ia)) / 0xFFFF; - db = ((sb * sa) + (db * ia)) / 0xFFFF; + s += 1 * 2; + d += 1 * 2; + n -= 1; + } - // Combine components. - return (db << 0) | (dg << 16) | (dr << 32) | (da << 48); + return len; } -static inline uint32_t // -wuffs_private_impl__composite_premul_premul_u32_axxx(uint32_t dst_premul, - uint32_t src_premul) { - // Extract 16-bit color components. - uint32_t da = 0x101 * (0xFF & (dst_premul >> 24)); - uint32_t dr = 0x101 * (0xFF & (dst_premul >> 16)); - uint32_t dg = 0x101 * (0xFF & (dst_premul >> 8)); - uint32_t db = 0x101 * (0xFF & (dst_premul >> 0)); - uint32_t sa = 0x101 * (0xFF & (src_premul >> 24)); - uint32_t sr = 0x101 * (0xFF & (src_premul >> 16)); - uint32_t sg = 0x101 * (0xFF & (src_premul >> 8)); - uint32_t sb = 0x101 * (0xFF & (src_premul >> 0)); +static uint64_t // +wuffs_private_impl__swizzle_bgr_565__index__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; + } + size_t dst_len2 = dst_len / 2; + size_t len = (dst_len2 < src_len) ? dst_len2 : src_len; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; + const size_t loop_unroll_count = 4; - // Composite src (premul) over dst (premul). - da = sa + ((da * ia) / 0xFFFF); - dr = sr + ((dr * ia) / 0xFFFF); - dg = sg + ((dg * ia) / 0xFFFF); - db = sb + ((db * ia) / 0xFFFF); + while (n >= loop_unroll_count) { + wuffs_base__poke_u16le__no_bounds_check( + d + (0 * 2), wuffs_base__peek_u16le__no_bounds_check( + dst_palette_ptr + ((size_t)s[0] * 4))); + wuffs_base__poke_u16le__no_bounds_check( + d + (1 * 2), wuffs_base__peek_u16le__no_bounds_check( + dst_palette_ptr + ((size_t)s[1] * 4))); + wuffs_base__poke_u16le__no_bounds_check( + d + (2 * 2), wuffs_base__peek_u16le__no_bounds_check( + dst_palette_ptr + ((size_t)s[2] * 4))); + wuffs_base__poke_u16le__no_bounds_check( + d + (3 * 2), wuffs_base__peek_u16le__no_bounds_check( + dst_palette_ptr + ((size_t)s[3] * 4))); - // Convert from 16-bit color to 8-bit color. - da >>= 8; - dr >>= 8; - dg >>= 8; - db >>= 8; + s += loop_unroll_count * 1; + d += loop_unroll_count * 2; + n -= loop_unroll_count; + } - // Combine components. - return (db << 0) | (dg << 8) | (dr << 16) | (da << 24); -} + while (n >= 1) { + wuffs_base__poke_u16le__no_bounds_check( + d + (0 * 2), wuffs_base__peek_u16le__no_bounds_check( + dst_palette_ptr + ((size_t)s[0] * 4))); -// -------- + s += 1 * 1; + d += 1 * 2; + n -= 1; + } + + return len; +} static uint64_t // -wuffs_private_impl__swizzle_squash_align4_bgr_565_8888(uint8_t* dst_ptr, - size_t dst_len, - const uint8_t* src_ptr, - size_t src_len, - bool nonpremul) { - size_t len = (dst_len < src_len ? dst_len : src_len) / 4; +wuffs_private_impl__swizzle_bgr_565__index_bgra_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; + } + size_t dst_len2 = dst_len / 2; + size_t len = (dst_len2 < src_len) ? dst_len2 : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; + size_t n = len; + + // TODO: unroll. + + while (n >= 1) { + uint32_t d0 = wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( + wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2))); + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4)); + wuffs_base__poke_u16le__no_bounds_check( + d + (0 * 2), + wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( + wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, s0))); + + s += 1 * 1; + d += 1 * 2; + n -= 1; + } + + return len; +} +static uint64_t // +wuffs_private_impl__swizzle_bgr_565__index_binary_alpha__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; + } + size_t dst_len2 = dst_len / 2; + size_t len = (dst_len2 < src_len) ? dst_len2 : src_len; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; size_t n = len; - while (n--) { - uint32_t argb = wuffs_base__peek_u32le__no_bounds_check(s); - if (nonpremul) { - argb = - wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul(argb); + + // TODO: unroll. + + while (n >= 1) { + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4)); + if (s0) { + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)s0); } - uint32_t b5 = 0x1F & (argb >> (8 - 5)); - uint32_t g6 = 0x3F & (argb >> (16 - 6)); - uint32_t r5 = 0x1F & (argb >> (24 - 5)); - uint32_t alpha = argb & 0xFF000000; - wuffs_base__poke_u32le__no_bounds_check( - d, alpha | (r5 << 11) | (g6 << 5) | (b5 << 0)); - s += 4; - d += 4; + + s += 1 * 1; + d += 1 * 2; + n -= 1; } + return len; } // -------- static uint64_t // -wuffs_private_impl__swizzle_swap_rgb_bgr(uint8_t* dst_ptr, +wuffs_private_impl__swizzle_bgr__bgr_565(uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t len = (dst_len < src_len ? dst_len : src_len) / 3; + size_t dst_len3 = dst_len / 3; + size_t src_len2 = src_len / 2; + size_t len = (dst_len3 < src_len2) ? dst_len3 : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; + size_t n = len; + + // TODO: unroll. + + while (n >= 1) { + uint32_t s0 = wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( + wuffs_base__peek_u16le__no_bounds_check(s + (0 * 2))); + wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); - size_t n = len; - while (n--) { - uint8_t s0 = s[0]; - uint8_t s1 = s[1]; - uint8_t s2 = s[2]; - d[0] = s2; - d[1] = s1; - d[2] = s0; - s += 3; - d += 3; + s += 1 * 2; + d += 1 * 3; + n -= 1; } + return len; } -// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") static uint64_t // -wuffs_private_impl__swizzle_swap_rgbx_bgrx__x86_sse42(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t len = (dst_len < src_len ? dst_len : src_len) / 4; +wuffs_private_impl__swizzle_bgr__bgra_nonpremul__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; + size_t src_len4 = src_len / 4; + size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - __m128i shuffle = _mm_set_epi8(+0x0F, +0x0C, +0x0D, +0x0E, // - +0x0B, +0x08, +0x09, +0x0A, // - +0x07, +0x04, +0x05, +0x06, // - +0x03, +0x00, +0x01, +0x02); + // TODO: unroll. - while (n >= 4) { - __m128i x; - x = _mm_lddqu_si128((const __m128i*)(const void*)s); - x = _mm_shuffle_epi8(x, shuffle); - _mm_storeu_si128((__m128i*)(void*)d, x); + while (n >= 1) { + uint32_t s0 = + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); - s += 4 * 4; - d += 4 * 4; - n -= 4; + s += 1 * 4; + d += 1 * 3; + n -= 1; } - while (n--) { - uint8_t s0 = s[0]; - uint8_t s1 = s[1]; - uint8_t s2 = s[2]; - uint8_t s3 = s[3]; - d[0] = s2; - d[1] = s1; - d[2] = s0; - d[3] = s3; - s += 4; - d += 4; - } return len; } -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 static uint64_t // -wuffs_private_impl__swizzle_swap_rgbx_bgrx(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t len = (dst_len < src_len ? dst_len : src_len) / 4; +wuffs_private_impl__swizzle_bgr__bgra_nonpremul_4x16le__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; + size_t src_len8 = src_len / 8; + size_t len = (dst_len3 < src_len8) ? dst_len3 : src_len8; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; - while (n--) { - uint8_t s0 = s[0]; - uint8_t s1 = s[1]; - uint8_t s2 = s[2]; - uint8_t s3 = s[3]; - d[0] = s2; - d[1] = s1; - d[2] = s0; - d[3] = s3; - s += 4; - d += 4; - } - return len; -} -// -------- + // TODO: unroll. -static uint64_t // -wuffs_private_impl__swizzle_copy_1_1(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t len = (dst_len < src_len) ? dst_len : src_len; - if (len > 0) { - memmove(dst_ptr, src_ptr, len); - } - return len; -} + while (n >= 1) { + uint32_t s0 = + wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8))); + wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); -static uint64_t // -wuffs_private_impl__swizzle_copy_2_2(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; - size_t src_len2 = src_len / 2; - size_t len = (dst_len2 < src_len2) ? dst_len2 : src_len2; - if (len > 0) { - memmove(dst_ptr, src_ptr, len * 2); + s += 1 * 8; + d += 1 * 3; + n -= 1; } - return len; -} -static uint64_t // -wuffs_private_impl__swizzle_copy_3_3(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len3 = src_len / 3; - size_t len = (dst_len3 < src_len3) ? dst_len3 : src_len3; - if (len > 0) { - memmove(dst_ptr, src_ptr, len * 3); - } return len; } static uint64_t // -wuffs_private_impl__swizzle_copy_4_4(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; +wuffs_private_impl__swizzle_bgr__bgra_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; - if (len > 0) { - memmove(dst_ptr, src_ptr, len * 4); + size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; + + // TODO: unroll. + + while (n >= 1) { + // Extract 16-bit color components. + uint32_t dr = 0x101 * ((uint32_t)d[2]); + uint32_t dg = 0x101 * ((uint32_t)d[1]); + uint32_t db = 0x101 * ((uint32_t)d[0]); + uint32_t sa = 0x101 * ((uint32_t)s[3]); + uint32_t sr = 0x101 * ((uint32_t)s[2]); + uint32_t sg = 0x101 * ((uint32_t)s[1]); + uint32_t sb = 0x101 * ((uint32_t)s[0]); + + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; + + // Composite src (nonpremul) over dst (premul). + dr = ((sr * sa) + (dr * ia)) / 0xFFFF; + dg = ((sg * sa) + (dg * ia)) / 0xFFFF; + db = ((sb * sa) + (db * ia)) / 0xFFFF; + + // Convert from 16-bit color to 8-bit color. + d[0] = (uint8_t)(db >> 8); + d[1] = (uint8_t)(dg >> 8); + d[2] = (uint8_t)(dr >> 8); + + s += 1 * 4; + d += 1 * 3; + n -= 1; } + return len; } static uint64_t // -wuffs_private_impl__swizzle_copy_8_8(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; +wuffs_private_impl__swizzle_bgr__bgra_nonpremul_4x16le__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; size_t src_len8 = src_len / 8; - size_t len = (dst_len8 < src_len8) ? dst_len8 : src_len8; - if (len > 0) { - memmove(dst_ptr, src_ptr, len * 8); + size_t len = (dst_len3 < src_len8) ? dst_len3 : src_len8; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; + + // TODO: unroll. + + while (n >= 1) { + // Extract 16-bit color components. + uint32_t dr = 0x101 * ((uint32_t)d[2]); + uint32_t dg = 0x101 * ((uint32_t)d[1]); + uint32_t db = 0x101 * ((uint32_t)d[0]); + uint32_t sa = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 6)); + uint32_t sr = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 4)); + uint32_t sg = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 2)); + uint32_t sb = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 0)); + + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; + + // Composite src (nonpremul) over dst (premul). + dr = ((sr * sa) + (dr * ia)) / 0xFFFF; + dg = ((sg * sa) + (dg * ia)) / 0xFFFF; + db = ((sb * sa) + (db * ia)) / 0xFFFF; + + // Convert from 16-bit color to 8-bit color. + d[0] = (uint8_t)(db >> 8); + d[1] = (uint8_t)(dg >> 8); + d[2] = (uint8_t)(dr >> 8); + + s += 1 * 8; + d += 1 * 3; + n -= 1; } + return len; } -// -------- - static uint64_t // -wuffs_private_impl__swizzle_bgr_565__bgr(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; - size_t src_len3 = src_len / 3; - size_t len = (dst_len2 < src_len3) ? dst_len2 : src_len3; +wuffs_private_impl__swizzle_bgr__bgra_premul__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; + size_t src_len4 = src_len / 4; + size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - // TODO: unroll. - while (n >= 1) { - uint32_t b5 = (uint32_t)(s[0] >> 3); - uint32_t g6 = (uint32_t)(s[1] >> 2); - uint32_t r5 = (uint32_t)(s[2] >> 3); - uint32_t rgb_565 = (r5 << 11) | (g6 << 5) | (b5 << 0); - wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)rgb_565); + uint8_t s0 = s[0]; + uint8_t s1 = s[1]; + uint8_t s2 = s[2]; + d[0] = s0; + d[1] = s1; + d[2] = s2; - s += 1 * 3; - d += 1 * 2; + s += 1 * 4; + d += 1 * 3; n -= 1; } @@ -21672,30 +25177,44 @@ wuffs_private_impl__swizzle_bgr_565__bgr(uint8_t* dst_ptr, } static uint64_t // -wuffs_private_impl__swizzle_bgr_565__bgrx(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; +wuffs_private_impl__swizzle_bgr__bgra_premul__src_over(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; size_t src_len4 = src_len / 4; - size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; + size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - // TODO: unroll. - while (n >= 1) { - uint32_t b5 = (uint32_t)(s[0] >> 3); - uint32_t g6 = (uint32_t)(s[1] >> 2); - uint32_t r5 = (uint32_t)(s[2] >> 3); - uint32_t rgb_565 = (r5 << 11) | (g6 << 5) | (b5 << 0); - wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)rgb_565); + // Extract 16-bit color components. + uint32_t dr = 0x101 * ((uint32_t)d[2]); + uint32_t dg = 0x101 * ((uint32_t)d[1]); + uint32_t db = 0x101 * ((uint32_t)d[0]); + uint32_t sa = 0x101 * ((uint32_t)s[3]); + uint32_t sr = 0x101 * ((uint32_t)s[2]); + uint32_t sg = 0x101 * ((uint32_t)s[1]); + uint32_t sb = 0x101 * ((uint32_t)s[0]); + + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; + + // Composite src (premul) over dst (premul). + dr = sr + ((dr * ia) / 0xFFFF); + dg = sg + ((dg * ia) / 0xFFFF); + db = sb + ((db * ia) / 0xFFFF); + + // Convert from 16-bit color to 8-bit color. + d[0] = (uint8_t)(db >> 8); + d[1] = (uint8_t)(dg >> 8); + d[2] = (uint8_t)(dr >> 8); s += 1 * 4; - d += 1 * 2; + d += 1 * 3; n -= 1; } @@ -21703,16 +25222,15 @@ wuffs_private_impl__swizzle_bgr_565__bgrx(uint8_t* dst_ptr, } static uint64_t // -wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul__src( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; +wuffs_private_impl__swizzle_bgr__rgba_nonpremul__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; size_t src_len4 = src_len / 4; - size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; + size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -21720,14 +25238,13 @@ wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul__src( // TODO: unroll. while (n >= 1) { - wuffs_base__poke_u16le__no_bounds_check( - d + (0 * 2), - wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( - wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))))); + uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))); + wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); s += 1 * 4; - d += 1 * 2; + d += 1 * 3; n -= 1; } @@ -21735,16 +25252,16 @@ wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul__src( } static uint64_t // -wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul_4x16le__src( +wuffs_private_impl__swizzle_bgr__rgba_nonpremul_4x16le__src( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len2 = dst_len / 2; + size_t dst_len3 = dst_len / 3; size_t src_len8 = src_len / 8; - size_t len = (dst_len2 < src_len8) ? dst_len2 : src_len8; + size_t len = (dst_len3 < src_len8) ? dst_len3 : src_len8; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -21752,14 +25269,13 @@ wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul_4x16le__src( // TODO: unroll. while (n >= 1) { - wuffs_base__poke_u16le__no_bounds_check( - d + (0 * 2), - wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( - wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul( - wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8))))); + uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)))); + wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); s += 1 * 8; - d += 1 * 2; + d += 1 * 3; n -= 1; } @@ -21767,16 +25283,16 @@ wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul_4x16le__src( } static uint64_t // -wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul__src_over( +wuffs_private_impl__swizzle_bgr__rgba_nonpremul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len2 = dst_len / 2; + size_t dst_len3 = dst_len / 3; size_t src_len4 = src_len / 4; - size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; + size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -21785,19 +25301,13 @@ wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul__src_over( while (n >= 1) { // Extract 16-bit color components. + uint32_t dr = 0x101 * ((uint32_t)d[2]); + uint32_t dg = 0x101 * ((uint32_t)d[1]); + uint32_t db = 0x101 * ((uint32_t)d[0]); uint32_t sa = 0x101 * ((uint32_t)s[3]); - uint32_t sr = 0x101 * ((uint32_t)s[2]); + uint32_t sb = 0x101 * ((uint32_t)s[2]); uint32_t sg = 0x101 * ((uint32_t)s[1]); - uint32_t sb = 0x101 * ((uint32_t)s[0]); - - // Convert from 565 color to 16-bit color. - uint32_t old_rgb_565 = wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2)); - uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); - uint32_t dr = (0x8421 * old_r5) >> 4; - uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); - uint32_t dg = (0x1041 * old_g6) >> 2; - uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); - uint32_t db = (0x8421 * old_b5) >> 4; + uint32_t sr = 0x101 * ((uint32_t)s[0]); // Calculate the inverse of the src-alpha: how much of the dst to keep. uint32_t ia = 0xFFFF - sa; @@ -21807,15 +25317,13 @@ wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul__src_over( dg = ((sg * sa) + (dg * ia)) / 0xFFFF; db = ((sb * sa) + (db * ia)) / 0xFFFF; - // Convert from 16-bit color to 565 color and combine the components. - uint32_t new_r5 = 0x1F & (dr >> 11); - uint32_t new_g6 = 0x3F & (dg >> 10); - uint32_t new_b5 = 0x1F & (db >> 11); - uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); - wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)new_rgb_565); + // Convert from 16-bit color to 8-bit color. + d[0] = (uint8_t)(db >> 8); + d[1] = (uint8_t)(dg >> 8); + d[2] = (uint8_t)(dr >> 8); s += 1 * 4; - d += 1 * 2; + d += 1 * 3; n -= 1; } @@ -21823,16 +25331,16 @@ wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul__src_over( } static uint64_t // -wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul_4x16le__src_over( +wuffs_private_impl__swizzle_bgr__rgba_nonpremul_4x16le__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len2 = dst_len / 2; + size_t dst_len3 = dst_len / 3; size_t src_len8 = src_len / 8; - size_t len = (dst_len2 < src_len8) ? dst_len2 : src_len8; + size_t len = (dst_len3 < src_len8) ? dst_len3 : src_len8; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -21841,19 +25349,13 @@ wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul_4x16le__src_over( while (n >= 1) { // Extract 16-bit color components. + uint32_t dr = 0x101 * ((uint32_t)d[2]); + uint32_t dg = 0x101 * ((uint32_t)d[1]); + uint32_t db = 0x101 * ((uint32_t)d[0]); uint32_t sa = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 6)); - uint32_t sr = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 4)); + uint32_t sb = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 4)); uint32_t sg = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 2)); - uint32_t sb = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 0)); - - // Convert from 565 color to 16-bit color. - uint32_t old_rgb_565 = wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2)); - uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); - uint32_t dr = (0x8421 * old_r5) >> 4; - uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); - uint32_t dg = (0x1041 * old_g6) >> 2; - uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); - uint32_t db = (0x8421 * old_b5) >> 4; + uint32_t sr = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 0)); // Calculate the inverse of the src-alpha: how much of the dst to keep. uint32_t ia = 0xFFFF - sa; @@ -21863,15 +25365,13 @@ wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul_4x16le__src_over( dg = ((sg * sa) + (dg * ia)) / 0xFFFF; db = ((sb * sa) + (db * ia)) / 0xFFFF; - // Convert from 16-bit color to 565 color and combine the components. - uint32_t new_r5 = 0x1F & (dr >> 11); - uint32_t new_g6 = 0x3F & (dg >> 10); - uint32_t new_b5 = 0x1F & (db >> 11); - uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); - wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)new_rgb_565); + // Convert from 16-bit color to 8-bit color. + d[0] = (uint8_t)(db >> 8); + d[1] = (uint8_t)(dg >> 8); + d[2] = (uint8_t)(dr >> 8); s += 1 * 8; - d += 1 * 2; + d += 1 * 3; n -= 1; } @@ -21879,28 +25379,29 @@ wuffs_private_impl__swizzle_bgr_565__bgra_nonpremul_4x16le__src_over( } static uint64_t // -wuffs_private_impl__swizzle_bgr_565__bgra_premul__src(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; +wuffs_private_impl__swizzle_bgr__rgba_premul__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; size_t src_len4 = src_len / 4; - size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; + size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - // TODO: unroll. - while (n >= 1) { - wuffs_base__poke_u16le__no_bounds_check( - d + (0 * 2), wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))); + uint8_t s0 = s[0]; + uint8_t s1 = s[1]; + uint8_t s2 = s[2]; + d[0] = s2; + d[1] = s1; + d[2] = s0; s += 1 * 4; - d += 1 * 2; + d += 1 * 3; n -= 1; } @@ -21908,37 +25409,28 @@ wuffs_private_impl__swizzle_bgr_565__bgra_premul__src(uint8_t* dst_ptr, } static uint64_t // -wuffs_private_impl__swizzle_bgr_565__bgra_premul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; +wuffs_private_impl__swizzle_bgr__rgba_premul__src_over(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; size_t src_len4 = src_len / 4; - size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; + size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - // TODO: unroll. - while (n >= 1) { // Extract 16-bit color components. + uint32_t dr = 0x101 * ((uint32_t)d[2]); + uint32_t dg = 0x101 * ((uint32_t)d[1]); + uint32_t db = 0x101 * ((uint32_t)d[0]); uint32_t sa = 0x101 * ((uint32_t)s[3]); - uint32_t sr = 0x101 * ((uint32_t)s[2]); + uint32_t sb = 0x101 * ((uint32_t)s[2]); uint32_t sg = 0x101 * ((uint32_t)s[1]); - uint32_t sb = 0x101 * ((uint32_t)s[0]); - - // Convert from 565 color to 16-bit color. - uint32_t old_rgb_565 = wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2)); - uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); - uint32_t dr = (0x8421 * old_r5) >> 4; - uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); - uint32_t dg = (0x1041 * old_g6) >> 2; - uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); - uint32_t db = (0x8421 * old_b5) >> 4; + uint32_t sr = 0x101 * ((uint32_t)s[0]); // Calculate the inverse of the src-alpha: how much of the dst to keep. uint32_t ia = 0xFFFF - sa; @@ -21948,15 +25440,13 @@ wuffs_private_impl__swizzle_bgr_565__bgra_premul__src_over( dg = sg + ((dg * ia) / 0xFFFF); db = sb + ((db * ia) / 0xFFFF); - // Convert from 16-bit color to 565 color and combine the components. - uint32_t new_r5 = 0x1F & (dr >> 11); - uint32_t new_g6 = 0x3F & (dg >> 10); - uint32_t new_b5 = 0x1F & (db >> 11); - uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); - wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)new_rgb_565); + // Convert from 16-bit color to 8-bit color. + d[0] = (uint8_t)(db >> 8); + d[1] = (uint8_t)(dg >> 8); + d[2] = (uint8_t)(dr >> 8); s += 1 * 4; - d += 1 * 2; + d += 1 * 3; n -= 1; } @@ -21964,15 +25454,15 @@ wuffs_private_impl__swizzle_bgr_565__bgra_premul__src_over( } static uint64_t // -wuffs_private_impl__swizzle_bgr_565__rgb(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; - size_t src_len3 = src_len / 3; - size_t len = (dst_len2 < src_len3) ? dst_len2 : src_len3; +wuffs_private_impl__swizzle_bgr__rgbx(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; + size_t src_len4 = src_len / 4; + size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -21980,47 +25470,47 @@ wuffs_private_impl__swizzle_bgr_565__rgb(uint8_t* dst_ptr, // TODO: unroll. while (n >= 1) { - uint32_t r5 = (uint32_t)(s[0] >> 3); - uint32_t g6 = (uint32_t)(s[1] >> 2); - uint32_t b5 = (uint32_t)(s[2] >> 3); - uint32_t rgb_565 = (r5 << 11) | (g6 << 5) | (b5 << 0); - wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)rgb_565); + uint8_t b0 = s[0]; + uint8_t b1 = s[1]; + uint8_t b2 = s[2]; + d[0] = b2; + d[1] = b1; + d[2] = b0; - s += 1 * 3; - d += 1 * 2; + s += 1 * 4; + d += 1 * 3; n -= 1; } return len; } +// -------- + static uint64_t // -wuffs_private_impl__swizzle_bgr_565__rgba_nonpremul__src( +wuffs_private_impl__swizzle_bgra_nonpremul__bgra_nonpremul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len2 = dst_len / 2; + size_t dst_len4 = dst_len / 4; size_t src_len4 = src_len / 4; - size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - // TODO: unroll. - while (n >= 1) { - wuffs_base__poke_u16le__no_bounds_check( - d + (0 * 2), - wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( - wuffs_private_impl__swap_u32_argb_abgr( - wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))))); + uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_private_impl__composite_nonpremul_nonpremul_u32_axxx(d0, s0)); s += 1 * 4; - d += 1 * 2; + d += 1 * 4; n -= 1; } @@ -22028,55 +25518,59 @@ wuffs_private_impl__swizzle_bgr_565__rgba_nonpremul__src( } static uint64_t // -wuffs_private_impl__swizzle_bgr_565__rgba_nonpremul__src_over( +wuffs_private_impl__swizzle_bgra_nonpremul__bgra_nonpremul_4x16le__src( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len2 = dst_len / 2; - size_t src_len4 = src_len / 4; - size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; + size_t dst_len4 = dst_len / 4; + size_t src_len8 = src_len / 8; + size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; - - // TODO: unroll. + size_t n = len; while (n >= 1) { - // Extract 16-bit color components. - uint32_t sa = 0x101 * ((uint32_t)s[3]); - uint32_t sb = 0x101 * ((uint32_t)s[2]); - uint32_t sg = 0x101 * ((uint32_t)s[1]); - uint32_t sr = 0x101 * ((uint32_t)s[0]); - - // Convert from 565 color to 16-bit color. - uint32_t old_rgb_565 = wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2)); - uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); - uint32_t dr = (0x8421 * old_r5) >> 4; - uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); - uint32_t dg = (0x1041 * old_g6) >> 2; - uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); - uint32_t db = (0x8421 * old_b5) >> 4; + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), wuffs_base__color_u64__as__color_u32( + wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)))); - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; + s += 1 * 8; + d += 1 * 4; + n -= 1; + } + return len; +} - // Composite src (nonpremul) over dst (premul). - dr = ((sr * sa) + (dr * ia)) / 0xFFFF; - dg = ((sg * sa) + (dg * ia)) / 0xFFFF; - db = ((sb * sa) + (db * ia)) / 0xFFFF; +static uint64_t // +wuffs_private_impl__swizzle_bgra_nonpremul__bgra_nonpremul_4x16le__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len8 = src_len / 8; + size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; - // Convert from 16-bit color to 565 color and combine the components. - uint32_t new_r5 = 0x1F & (dr >> 11); - uint32_t new_g6 = 0x3F & (dg >> 10); - uint32_t new_b5 = 0x1F & (db >> 11); - uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); - wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)new_rgb_565); + while (n >= 1) { + uint64_t d0 = wuffs_base__color_u32__as__color_u64( + wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4))); + uint64_t s0 = wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_base__color_u64__as__color_u32( + wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx(d0, + s0))); - s += 1 * 4; - d += 1 * 2; + s += 1 * 8; + d += 1 * 4; n -= 1; } @@ -22084,30 +25578,28 @@ wuffs_private_impl__swizzle_bgr_565__rgba_nonpremul__src_over( } static uint64_t // -wuffs_private_impl__swizzle_bgr_565__rgba_premul__src(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; +wuffs_private_impl__swizzle_bgra_nonpremul__bgra_premul__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; size_t src_len4 = src_len / 4; - size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - // TODO: unroll. - while (n >= 1) { - wuffs_base__poke_u16le__no_bounds_check( - d + (0 * 2), - wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( - wuffs_private_impl__swap_u32_argb_abgr( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))))); + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul(s0)); s += 1 * 4; - d += 1 * 2; + d += 1 * 4; n -= 1; } @@ -22115,55 +25607,29 @@ wuffs_private_impl__swizzle_bgr_565__rgba_premul__src(uint8_t* dst_ptr, } static uint64_t // -wuffs_private_impl__swizzle_bgr_565__rgba_premul__src_over( +wuffs_private_impl__swizzle_bgra_nonpremul__bgra_premul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len2 = dst_len / 2; + size_t dst_len4 = dst_len / 4; size_t src_len4 = src_len / 4; - size_t len = (dst_len2 < src_len4) ? dst_len2 : src_len4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - // TODO: unroll. - while (n >= 1) { - // Extract 16-bit color components. - uint32_t sa = 0x101 * ((uint32_t)s[3]); - uint32_t sb = 0x101 * ((uint32_t)s[2]); - uint32_t sg = 0x101 * ((uint32_t)s[1]); - uint32_t sr = 0x101 * ((uint32_t)s[0]); - - // Convert from 565 color to 16-bit color. - uint32_t old_rgb_565 = wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2)); - uint32_t old_r5 = 0x1F & (old_rgb_565 >> 11); - uint32_t dr = (0x8421 * old_r5) >> 4; - uint32_t old_g6 = 0x3F & (old_rgb_565 >> 5); - uint32_t dg = (0x1041 * old_g6) >> 2; - uint32_t old_b5 = 0x1F & (old_rgb_565 >> 0); - uint32_t db = (0x8421 * old_b5) >> 4; - - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; - - // Composite src (premul) over dst (premul). - dr = sr + ((dr * ia) / 0xFFFF); - dg = sg + ((dg * ia) / 0xFFFF); - db = sb + ((db * ia) / 0xFFFF); - - // Convert from 16-bit color to 565 color and combine the components. - uint32_t new_r5 = 0x1F & (dr >> 11); - uint32_t new_g6 = 0x3F & (dg >> 10); - uint32_t new_b5 = 0x1F & (db >> 11); - uint32_t new_rgb_565 = (new_r5 << 11) | (new_g6 << 5) | (new_b5 << 0); - wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)new_rgb_565); + uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_private_impl__composite_nonpremul_premul_u32_axxx(d0, s0)); s += 1 * 4; - d += 1 * 2; + d += 1 * 4; n -= 1; } @@ -22171,14 +25637,19 @@ wuffs_private_impl__swizzle_bgr_565__rgba_premul__src_over( } static uint64_t // -wuffs_private_impl__swizzle_bgr_565__y(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; - size_t len = (dst_len2 < src_len) ? dst_len2 : src_len; +wuffs_private_impl__swizzle_bgra_nonpremul__index_bgra_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; + } + size_t dst_len4 = dst_len / 4; + size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -22186,13 +25657,15 @@ wuffs_private_impl__swizzle_bgr_565__y(uint8_t* dst_ptr, // TODO: unroll. while (n >= 1) { - uint32_t y5 = (uint32_t)(s[0] >> 3); - uint32_t y6 = (uint32_t)(s[0] >> 2); - uint32_t rgb_565 = (y5 << 11) | (y6 << 5) | (y5 << 0); - wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)rgb_565); + uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4)); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_private_impl__composite_nonpremul_nonpremul_u32_axxx(d0, s0)); s += 1 * 1; - d += 1 * 2; + d += 1 * 4; n -= 1; } @@ -22200,29 +25673,30 @@ wuffs_private_impl__swizzle_bgr_565__y(uint8_t* dst_ptr, } static uint64_t // -wuffs_private_impl__swizzle_bgr_565__y_16be(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len2 = dst_len / 2; - size_t src_len2 = src_len / 2; - size_t len = (dst_len2 < src_len2) ? dst_len2 : src_len2; +wuffs_private_impl__swizzle_bgra_nonpremul__rgba_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len4 = src_len / 4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - // TODO: unroll. - while (n >= 1) { - uint32_t y5 = (uint32_t)(s[0] >> 3); - uint32_t y6 = (uint32_t)(s[0] >> 2); - uint32_t rgb_565 = (y5 << 11) | (y6 << 5) | (y5 << 0); - wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)rgb_565); + uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); + uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_private_impl__composite_nonpremul_nonpremul_u32_axxx(d0, s0)); - s += 1 * 2; - d += 1 * 2; + s += 1 * 4; + d += 1 * 4; n -= 1; } @@ -22230,50 +25704,29 @@ wuffs_private_impl__swizzle_bgr_565__y_16be(uint8_t* dst_ptr, } static uint64_t // -wuffs_private_impl__swizzle_bgr_565__index__src(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - if (dst_palette_len != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return 0; - } - size_t dst_len2 = dst_len / 2; - size_t len = (dst_len2 < src_len) ? dst_len2 : src_len; +wuffs_private_impl__swizzle_bgra_nonpremul__rgba_premul__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len4 = src_len / 4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - const size_t loop_unroll_count = 4; - - while (n >= loop_unroll_count) { - wuffs_base__poke_u16le__no_bounds_check( - d + (0 * 2), wuffs_base__peek_u16le__no_bounds_check( - dst_palette_ptr + ((size_t)s[0] * 4))); - wuffs_base__poke_u16le__no_bounds_check( - d + (1 * 2), wuffs_base__peek_u16le__no_bounds_check( - dst_palette_ptr + ((size_t)s[1] * 4))); - wuffs_base__poke_u16le__no_bounds_check( - d + (2 * 2), wuffs_base__peek_u16le__no_bounds_check( - dst_palette_ptr + ((size_t)s[2] * 4))); - wuffs_base__poke_u16le__no_bounds_check( - d + (3 * 2), wuffs_base__peek_u16le__no_bounds_check( - dst_palette_ptr + ((size_t)s[3] * 4))); - - s += loop_unroll_count * 1; - d += loop_unroll_count * 2; - n -= loop_unroll_count; - } - while (n >= 1) { - wuffs_base__poke_u16le__no_bounds_check( - d + (0 * 2), wuffs_base__peek_u16le__no_bounds_check( - dst_palette_ptr + ((size_t)s[0] * 4))); + uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul(s0)); - s += 1 * 1; - d += 1 * 2; + s += 1 * 4; + d += 1 * 4; n -= 1; } @@ -22281,37 +25734,30 @@ wuffs_private_impl__swizzle_bgr_565__index__src(uint8_t* dst_ptr, } static uint64_t // -wuffs_private_impl__swizzle_bgr_565__index_bgra_nonpremul__src_over( +wuffs_private_impl__swizzle_bgra_nonpremul__rgba_premul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - if (dst_palette_len != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return 0; - } - size_t dst_len2 = dst_len / 2; - size_t len = (dst_len2 < src_len) ? dst_len2 : src_len; + size_t dst_len4 = dst_len / 4; + size_t src_len4 = src_len / 4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - // TODO: unroll. - while (n >= 1) { - uint32_t d0 = wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( - wuffs_base__peek_u16le__no_bounds_check(d + (0 * 2))); - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[0] * 4)); - wuffs_base__poke_u16le__no_bounds_check( - d + (0 * 2), - wuffs_base__color_u32_argb_premul__as__color_u16_rgb_565( - wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, s0))); + uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); + uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_private_impl__composite_nonpremul_premul_u32_axxx(d0, s0)); - s += 1 * 1; - d += 1 * 2; + s += 1 * 4; + d += 1 * 4; n -= 1; } @@ -22319,19 +25765,16 @@ wuffs_private_impl__swizzle_bgr_565__index_bgra_nonpremul__src_over( } static uint64_t // -wuffs_private_impl__swizzle_bgr_565__index_binary_alpha__src_over( +wuffs_private_impl__swizzle_bgra_nonpremul__ya_nonpremul__src( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - if (dst_palette_len != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return 0; - } - size_t dst_len2 = dst_len / 2; - size_t len = (dst_len2 < src_len) ? dst_len2 : src_len; + size_t dst_len4 = dst_len / 4; + size_t src_len2 = src_len / 2; + size_t len = (dst_len4 < src_len2) ? dst_len4 : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -22339,32 +25782,28 @@ wuffs_private_impl__swizzle_bgr_565__index_binary_alpha__src_over( // TODO: unroll. while (n >= 1) { - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[0] * 4)); - if (s0) { - wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)s0); - } + uint32_t s0 = ((uint32_t)(s[1]) << 24) | ((uint32_t)(s[0]) * 0x010101); + wuffs_base__poke_u32le__no_bounds_check(d + (0 * 4), s0); - s += 1 * 1; - d += 1 * 2; + s += 1 * 2; + d += 1 * 4; n -= 1; } return len; } -// -------- - static uint64_t // -wuffs_private_impl__swizzle_bgr__bgr_565(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; +wuffs_private_impl__swizzle_bgra_nonpremul__ya_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; size_t src_len2 = src_len / 2; - size_t len = (dst_len3 < src_len2) ? dst_len3 : src_len2; + size_t len = (dst_len4 < src_len2) ? dst_len4 : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -22372,169 +25811,204 @@ wuffs_private_impl__swizzle_bgr__bgr_565(uint8_t* dst_ptr, // TODO: unroll. while (n >= 1) { - uint32_t s0 = wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( - wuffs_base__peek_u16le__no_bounds_check(s + (0 * 2))); - wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); + uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); + uint32_t s0 = ((uint32_t)(s[1]) << 24) | ((uint32_t)(s[0]) * 0x010101); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_private_impl__composite_nonpremul_nonpremul_u32_axxx(d0, s0)); s += 1 * 2; - d += 1 * 3; + d += 1 * 4; n -= 1; } return len; } +// -------- + static uint64_t // -wuffs_private_impl__swizzle_bgr__bgra_nonpremul__src(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__bgra_nonpremul__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; size_t src_len4 = src_len / 4; - size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; + size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; + size_t n = len; + while (n >= 1) { + uint8_t s0 = s[0]; + uint8_t s1 = s[1]; + uint8_t s2 = s[2]; + uint8_t s3 = s[3]; + d[0] = s0; + d[1] = s0; + d[2] = s1; + d[3] = s1; + d[4] = s2; + d[5] = s2; + d[6] = s3; + d[7] = s3; - // TODO: unroll. + s += 1 * 4; + d += 1 * 8; + n -= 1; + } + return len; +} + +static uint64_t // +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__bgra_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; + size_t src_len4 = src_len / 4; + size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; while (n >= 1) { - uint32_t s0 = - wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); - wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); + uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); + uint64_t s0 = wuffs_base__color_u32__as__color_u64( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), + wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx(d0, s0)); s += 1 * 4; - d += 1 * 3; + d += 1 * 8; n -= 1; } + return len; +} + +static uint64_t // +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__bgra_nonpremul_4x16le__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; + size_t src_len8 = src_len / 8; + size_t len = (dst_len8 < src_len8) ? dst_len8 : src_len8; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + + size_t n = len; + while (n >= 1) { + uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); + uint64_t s0 = wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)); + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), + wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx(d0, s0)); + s += 1 * 8; + d += 1 * 8; + n -= 1; + } return len; } static uint64_t // -wuffs_private_impl__swizzle_bgr__bgra_nonpremul_4x16le__src( +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__bgra_premul__src( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len8 = src_len / 8; - size_t len = (dst_len3 < src_len8) ? dst_len3 : src_len8; + size_t dst_len8 = dst_len / 8; + size_t src_len4 = src_len / 4; + size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; - - // TODO: unroll. + size_t n = len; while (n >= 1) { - uint32_t s0 = - wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul( - wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8))); - wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); + uint64_t s0 = wuffs_base__color_u32__as__color_u64( + wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))); + wuffs_base__poke_u64le__no_bounds_check(d + (0 * 8), s0); - s += 1 * 8; - d += 1 * 3; + s += 1 * 4; + d += 1 * 8; n -= 1; } - return len; } static uint64_t // -wuffs_private_impl__swizzle_bgr__bgra_nonpremul__src_over( +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__bgra_premul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len3 = dst_len / 3; + size_t dst_len8 = dst_len / 8; size_t src_len4 = src_len / 4; - size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; + size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; - - // TODO: unroll. + size_t n = len; while (n >= 1) { - // Extract 16-bit color components. - uint32_t dr = 0x101 * ((uint32_t)d[2]); - uint32_t dg = 0x101 * ((uint32_t)d[1]); - uint32_t db = 0x101 * ((uint32_t)d[0]); - uint32_t sa = 0x101 * ((uint32_t)s[3]); - uint32_t sr = 0x101 * ((uint32_t)s[2]); - uint32_t sg = 0x101 * ((uint32_t)s[1]); - uint32_t sb = 0x101 * ((uint32_t)s[0]); - - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; - - // Composite src (nonpremul) over dst (premul). - dr = ((sr * sa) + (dr * ia)) / 0xFFFF; - dg = ((sg * sa) + (dg * ia)) / 0xFFFF; - db = ((sb * sa) + (db * ia)) / 0xFFFF; - - // Convert from 16-bit color to 8-bit color. - d[0] = (uint8_t)(db >> 8); - d[1] = (uint8_t)(dg >> 8); - d[2] = (uint8_t)(dr >> 8); + uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); + uint64_t s0 = wuffs_base__color_u32__as__color_u64( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), + wuffs_private_impl__composite_nonpremul_premul_u64_axxx(d0, s0)); s += 1 * 4; - d += 1 * 3; + d += 1 * 8; n -= 1; } - return len; } static uint64_t // -wuffs_private_impl__swizzle_bgr__bgra_nonpremul_4x16le__src_over( +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__index_bgra_nonpremul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len8 = src_len / 8; - size_t len = (dst_len3 < src_len8) ? dst_len3 : src_len8; + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; + } + size_t dst_len8 = dst_len / 8; + size_t len = (dst_len8 < src_len) ? dst_len8 : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - // TODO: unroll. - while (n >= 1) { - // Extract 16-bit color components. - uint32_t dr = 0x101 * ((uint32_t)d[2]); - uint32_t dg = 0x101 * ((uint32_t)d[1]); - uint32_t db = 0x101 * ((uint32_t)d[0]); - uint32_t sa = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 6)); - uint32_t sr = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 4)); - uint32_t sg = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 2)); - uint32_t sb = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 0)); - - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; - - // Composite src (nonpremul) over dst (premul). - dr = ((sr * sa) + (dr * ia)) / 0xFFFF; - dg = ((sg * sa) + (dg * ia)) / 0xFFFF; - db = ((sb * sa) + (db * ia)) / 0xFFFF; - - // Convert from 16-bit color to 8-bit color. - d[0] = (uint8_t)(db >> 8); - d[1] = (uint8_t)(dg >> 8); - d[2] = (uint8_t)(dr >> 8); + uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); + uint64_t s0 = wuffs_base__color_u32__as__color_u64( + wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4))); + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), + wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx(d0, s0)); - s += 1 * 8; - d += 1 * 3; + s += 1 * 1; + d += 1 * 8; n -= 1; } @@ -22542,200 +26016,202 @@ wuffs_private_impl__swizzle_bgr__bgra_nonpremul_4x16le__src_over( } static uint64_t // -wuffs_private_impl__swizzle_bgr__bgra_premul__src(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__rgba_nonpremul__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; size_t src_len4 = src_len / 4; - size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; + size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; + size_t n = len; while (n >= 1) { uint8_t s0 = s[0]; uint8_t s1 = s[1]; uint8_t s2 = s[2]; - d[0] = s0; - d[1] = s1; - d[2] = s2; + uint8_t s3 = s[3]; + d[0] = s2; + d[1] = s2; + d[2] = s1; + d[3] = s1; + d[4] = s0; + d[5] = s0; + d[6] = s3; + d[7] = s3; s += 1 * 4; - d += 1 * 3; + d += 1 * 8; n -= 1; } - return len; } static uint64_t // -wuffs_private_impl__swizzle_bgr__bgra_premul__src_over(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__rgba_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; size_t src_len4 = src_len / 4; - size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; + size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; + size_t n = len; while (n >= 1) { - // Extract 16-bit color components. - uint32_t dr = 0x101 * ((uint32_t)d[2]); - uint32_t dg = 0x101 * ((uint32_t)d[1]); - uint32_t db = 0x101 * ((uint32_t)d[0]); - uint32_t sa = 0x101 * ((uint32_t)s[3]); - uint32_t sr = 0x101 * ((uint32_t)s[2]); - uint32_t sg = 0x101 * ((uint32_t)s[1]); - uint32_t sb = 0x101 * ((uint32_t)s[0]); + uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); + uint64_t s0 = wuffs_base__color_u32__as__color_u64( + wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))); + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), + wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx(d0, s0)); - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; + s += 1 * 4; + d += 1 * 8; + n -= 1; + } + return len; +} - // Composite src (premul) over dst (premul). - dr = sr + ((dr * ia) / 0xFFFF); - dg = sg + ((dg * ia) / 0xFFFF); - db = sb + ((db * ia) / 0xFFFF); +static uint64_t // +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__rgba_premul__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; + size_t src_len4 = src_len / 4; + size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; - // Convert from 16-bit color to 8-bit color. - d[0] = (uint8_t)(db >> 8); - d[1] = (uint8_t)(dg >> 8); - d[2] = (uint8_t)(dr >> 8); + size_t n = len; + while (n >= 1) { + uint64_t s0 = wuffs_base__color_u32__as__color_u64( + wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( + wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))))); + wuffs_base__poke_u64le__no_bounds_check(d + (0 * 8), s0); s += 1 * 4; - d += 1 * 3; + d += 1 * 8; n -= 1; } - return len; } static uint64_t // -wuffs_private_impl__swizzle_bgr__rgba_nonpremul__src(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__rgba_premul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len8 = dst_len / 8; size_t src_len4 = src_len / 4; - size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; + size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; - - // TODO: unroll. + size_t n = len; while (n >= 1) { - uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( - wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( + uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); + uint64_t s0 = wuffs_base__color_u32__as__color_u64( + wuffs_private_impl__swap_u32_argb_abgr( wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))); - wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), + wuffs_private_impl__composite_nonpremul_premul_u64_axxx(d0, s0)); s += 1 * 4; - d += 1 * 3; + d += 1 * 8; n -= 1; } - return len; } static uint64_t // -wuffs_private_impl__swizzle_bgr__rgba_nonpremul_4x16le__src( +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__ya_nonpremul__src( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len8 = src_len / 8; - size_t len = (dst_len3 < src_len8) ? dst_len3 : src_len8; + size_t dst_len8 = dst_len / 8; + size_t src_len2 = src_len / 2; + size_t len = (dst_len8 < src_len2) ? dst_len8 : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; - - // TODO: unroll. + size_t n = len; while (n >= 1) { - uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( - wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul( - wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)))); - wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); + uint64_t s0 = ((uint64_t)(s[1]) * 0x0101000000000000) | + ((uint64_t)(s[0]) * 0x0000010101010101); + wuffs_base__poke_u64le__no_bounds_check(d + (0 * 8), s0); - s += 1 * 8; - d += 1 * 3; + s += 1 * 2; + d += 1 * 8; n -= 1; } - return len; } static uint64_t // -wuffs_private_impl__swizzle_bgr__rgba_nonpremul__src_over( +wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__ya_nonpremul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len4 = src_len / 4; - size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; + size_t dst_len8 = dst_len / 8; + size_t src_len2 = src_len / 2; + size_t len = (dst_len8 < src_len2) ? dst_len8 : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; - - // TODO: unroll. + size_t n = len; while (n >= 1) { - // Extract 16-bit color components. - uint32_t dr = 0x101 * ((uint32_t)d[2]); - uint32_t dg = 0x101 * ((uint32_t)d[1]); - uint32_t db = 0x101 * ((uint32_t)d[0]); - uint32_t sa = 0x101 * ((uint32_t)s[3]); - uint32_t sb = 0x101 * ((uint32_t)s[2]); - uint32_t sg = 0x101 * ((uint32_t)s[1]); - uint32_t sr = 0x101 * ((uint32_t)s[0]); - - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; - - // Composite src (nonpremul) over dst (premul). - dr = ((sr * sa) + (dr * ia)) / 0xFFFF; - dg = ((sg * sa) + (dg * ia)) / 0xFFFF; - db = ((sb * sa) + (db * ia)) / 0xFFFF; - - // Convert from 16-bit color to 8-bit color. - d[0] = (uint8_t)(db >> 8); - d[1] = (uint8_t)(dg >> 8); - d[2] = (uint8_t)(dr >> 8); + uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); + uint64_t s0 = ((uint64_t)(s[1]) * 0x0101000000000000) | + ((uint64_t)(s[0]) * 0x0000010101010101); + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), + wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx(d0, s0)); - s += 1 * 4; - d += 1 * 3; + s += 1 * 2; + d += 1 * 8; n -= 1; } - return len; } +// -------- + static uint64_t // -wuffs_private_impl__swizzle_bgr__rgba_nonpremul_4x16le__src_over( +wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul__src( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len8 = src_len / 8; - size_t len = (dst_len3 < src_len8) ? dst_len3 : src_len8; + size_t dst_len4 = dst_len / 4; + size_t src_len4 = src_len / 4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -22743,30 +26219,13 @@ wuffs_private_impl__swizzle_bgr__rgba_nonpremul_4x16le__src_over( // TODO: unroll. while (n >= 1) { - // Extract 16-bit color components. - uint32_t dr = 0x101 * ((uint32_t)d[2]); - uint32_t dg = 0x101 * ((uint32_t)d[1]); - uint32_t db = 0x101 * ((uint32_t)d[0]); - uint32_t sa = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 6)); - uint32_t sb = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 4)); - uint32_t sg = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 2)); - uint32_t sr = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 0)); - - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; - - // Composite src (nonpremul) over dst (premul). - dr = ((sr * sa) + (dr * ia)) / 0xFFFF; - dg = ((sg * sa) + (dg * ia)) / 0xFFFF; - db = ((sb * sa) + (db * ia)) / 0xFFFF; - - // Convert from 16-bit color to 8-bit color. - d[0] = (uint8_t)(db >> 8); - d[1] = (uint8_t)(dg >> 8); - d[2] = (uint8_t)(dr >> 8); + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul(s0)); - s += 1 * 8; - d += 1 * 3; + s += 1 * 4; + d += 1 * 4; n -= 1; } @@ -22774,29 +26233,30 @@ wuffs_private_impl__swizzle_bgr__rgba_nonpremul_4x16le__src_over( } static uint64_t // -wuffs_private_impl__swizzle_bgr__rgba_premul__src(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len4 = src_len / 4; - size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; +wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul_4x16le__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len8 = src_len / 8; + size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; + // TODO: unroll. + while (n >= 1) { - uint8_t s0 = s[0]; - uint8_t s1 = s[1]; - uint8_t s2 = s[2]; - d[0] = s2; - d[1] = s1; - d[2] = s0; + uint64_t s0 = wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul(s0)); - s += 1 * 4; - d += 1 * 3; + s += 1 * 8; + d += 1 * 4; n -= 1; } @@ -22804,44 +26264,31 @@ wuffs_private_impl__swizzle_bgr__rgba_premul__src(uint8_t* dst_ptr, } static uint64_t // -wuffs_private_impl__swizzle_bgr__rgba_premul__src_over(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; +wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; size_t src_len4 = src_len / 4; - size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - while (n >= 1) { - // Extract 16-bit color components. - uint32_t dr = 0x101 * ((uint32_t)d[2]); - uint32_t dg = 0x101 * ((uint32_t)d[1]); - uint32_t db = 0x101 * ((uint32_t)d[0]); - uint32_t sa = 0x101 * ((uint32_t)s[3]); - uint32_t sb = 0x101 * ((uint32_t)s[2]); - uint32_t sg = 0x101 * ((uint32_t)s[1]); - uint32_t sr = 0x101 * ((uint32_t)s[0]); - - // Calculate the inverse of the src-alpha: how much of the dst to keep. - uint32_t ia = 0xFFFF - sa; - - // Composite src (premul) over dst (premul). - dr = sr + ((dr * ia) / 0xFFFF); - dg = sg + ((dg * ia) / 0xFFFF); - db = sb + ((db * ia) / 0xFFFF); + // TODO: unroll. - // Convert from 16-bit color to 8-bit color. - d[0] = (uint8_t)(db >> 8); - d[1] = (uint8_t)(dg >> 8); - d[2] = (uint8_t)(dr >> 8); + while (n >= 1) { + uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, s0)); s += 1 * 4; - d += 1 * 3; + d += 1 * 4; n -= 1; } @@ -22849,15 +26296,16 @@ wuffs_private_impl__swizzle_bgr__rgba_premul__src_over(uint8_t* dst_ptr, } static uint64_t // -wuffs_private_impl__swizzle_bgr__rgbx(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len4 = src_len / 4; - size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; +wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul_4x16le__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len8 = src_len / 8; + size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -22865,25 +26313,24 @@ wuffs_private_impl__swizzle_bgr__rgbx(uint8_t* dst_ptr, // TODO: unroll. while (n >= 1) { - uint8_t b0 = s[0]; - uint8_t b1 = s[1]; - uint8_t b2 = s[2]; - d[0] = b2; - d[1] = b1; - d[2] = b0; + uint64_t d0 = wuffs_base__color_u32__as__color_u64( + wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4))); + uint64_t s0 = wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + wuffs_base__color_u64__as__color_u32( + wuffs_private_impl__composite_premul_nonpremul_u64_axxx(d0, s0))); - s += 1 * 4; - d += 1 * 3; + s += 1 * 8; + d += 1 * 4; n -= 1; } return len; } -// -------- - static uint64_t // -wuffs_private_impl__swizzle_bgra_nonpremul__bgra_nonpremul__src_over( +wuffs_private_impl__swizzle_bgra_premul__bgra_premul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, @@ -22897,12 +26344,14 @@ wuffs_private_impl__swizzle_bgra_nonpremul__bgra_nonpremul__src_over( const uint8_t* s = src_ptr; size_t n = len; + // TODO: unroll. + while (n >= 1) { uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); wuffs_base__poke_u32le__no_bounds_check( d + (0 * 4), - wuffs_private_impl__composite_nonpremul_nonpremul_u32_axxx(d0, s0)); + wuffs_private_impl__composite_premul_premul_u32_axxx(d0, s0)); s += 1 * 4; d += 1 * 4; @@ -22913,34 +26362,43 @@ wuffs_private_impl__swizzle_bgra_nonpremul__bgra_nonpremul__src_over( } static uint64_t // -wuffs_private_impl__swizzle_bgra_nonpremul__bgra_nonpremul_4x16le__src( +wuffs_private_impl__swizzle_bgra_premul__index_bgra_nonpremul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; + } size_t dst_len4 = dst_len / 4; - size_t src_len8 = src_len / 8; - size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; + size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; + + // TODO: unroll. + while (n >= 1) { + uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4)); wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), wuffs_base__color_u64__as__color_u32( - wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)))); + d + (0 * 4), + wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, s0)); - s += 1 * 8; + s += 1 * 1; d += 1 * 4; n -= 1; } + return len; } static uint64_t // -wuffs_private_impl__swizzle_bgra_nonpremul__bgra_nonpremul_4x16le__src_over( +wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul__src( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, @@ -22948,23 +26406,22 @@ wuffs_private_impl__swizzle_bgra_nonpremul__bgra_nonpremul_4x16le__src_over( const uint8_t* src_ptr, size_t src_len) { size_t dst_len4 = dst_len / 4; - size_t src_len8 = src_len / 8; - size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; + size_t src_len4 = src_len / 4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; + // TODO: unroll. + while (n >= 1) { - uint64_t d0 = wuffs_base__color_u32__as__color_u64( - wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4))); - uint64_t s0 = wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)); + uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); wuffs_base__poke_u32le__no_bounds_check( d + (0 * 4), - wuffs_base__color_u64__as__color_u32( - wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx(d0, - s0))); + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul(s0)); - s += 1 * 8; + s += 1 * 4; d += 1 * 4; n -= 1; } @@ -22973,7 +26430,7 @@ wuffs_private_impl__swizzle_bgra_nonpremul__bgra_nonpremul_4x16le__src_over( } static uint64_t // -wuffs_private_impl__swizzle_bgra_nonpremul__bgra_premul__src( +wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, @@ -22987,11 +26444,15 @@ wuffs_private_impl__swizzle_bgra_nonpremul__bgra_premul__src( const uint8_t* s = src_ptr; size_t n = len; + // TODO: unroll. + while (n >= 1) { - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); + uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); + uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); wuffs_base__poke_u32le__no_bounds_check( d + (0 * 4), - wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul(s0)); + wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, s0)); s += 1 * 4; d += 1 * 4; @@ -23002,7 +26463,7 @@ wuffs_private_impl__swizzle_bgra_nonpremul__bgra_premul__src( } static uint64_t // -wuffs_private_impl__swizzle_bgra_nonpremul__bgra_premul__src_over( +wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul_4x16le__src( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, @@ -23010,20 +26471,23 @@ wuffs_private_impl__swizzle_bgra_nonpremul__bgra_premul__src_over( const uint8_t* src_ptr, size_t src_len) { size_t dst_len4 = dst_len / 4; - size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + size_t src_len8 = src_len / 8; + size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; + // TODO: unroll. + while (n >= 1) { - uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); + uint64_t s0 = wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)); wuffs_base__poke_u32le__no_bounds_check( d + (0 * 4), - wuffs_private_impl__composite_nonpremul_premul_u32_axxx(d0, s0)); + wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul( + s0))); - s += 1 * 4; + s += 1 * 8; d += 1 * 4; n -= 1; } @@ -23032,19 +26496,16 @@ wuffs_private_impl__swizzle_bgra_nonpremul__bgra_premul__src_over( } static uint64_t // -wuffs_private_impl__swizzle_bgra_nonpremul__index_bgra_nonpremul__src_over( +wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul_4x16le__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - if (dst_palette_len != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return 0; - } size_t dst_len4 = dst_len / 4; - size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; + size_t src_len8 = src_len / 8; + size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -23052,14 +26513,16 @@ wuffs_private_impl__swizzle_bgra_nonpremul__index_bgra_nonpremul__src_over( // TODO: unroll. while (n >= 1) { - uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[0] * 4)); + uint64_t d0 = wuffs_base__color_u32__as__color_u64( + wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4))); + uint64_t s0 = wuffs_private_impl__swap_u64_argb_abgr( + wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8))); wuffs_base__poke_u32le__no_bounds_check( d + (0 * 4), - wuffs_private_impl__composite_nonpremul_nonpremul_u32_axxx(d0, s0)); + wuffs_base__color_u64__as__color_u32( + wuffs_private_impl__composite_premul_nonpremul_u64_axxx(d0, s0))); - s += 1 * 1; + s += 1 * 8; d += 1 * 4; n -= 1; } @@ -23068,7 +26531,7 @@ wuffs_private_impl__swizzle_bgra_nonpremul__index_bgra_nonpremul__src_over( } static uint64_t // -wuffs_private_impl__swizzle_bgra_nonpremul__rgba_nonpremul__src_over( +wuffs_private_impl__swizzle_bgra_premul__rgba_premul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, @@ -23088,7 +26551,7 @@ wuffs_private_impl__swizzle_bgra_nonpremul__rgba_nonpremul__src_over( wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); wuffs_base__poke_u32le__no_bounds_check( d + (0 * 4), - wuffs_private_impl__composite_nonpremul_nonpremul_u32_axxx(d0, s0)); + wuffs_private_impl__composite_premul_premul_u32_axxx(d0, s0)); s += 1 * 4; d += 1 * 4; @@ -23099,7 +26562,7 @@ wuffs_private_impl__swizzle_bgra_nonpremul__rgba_nonpremul__src_over( } static uint64_t // -wuffs_private_impl__swizzle_bgra_nonpremul__rgba_premul__src( +wuffs_private_impl__swizzle_bgra_premul__ya_nonpremul__src( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, @@ -23107,20 +26570,21 @@ wuffs_private_impl__swizzle_bgra_nonpremul__rgba_premul__src( const uint8_t* src_ptr, size_t src_len) { size_t dst_len4 = dst_len / 4; - size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + size_t src_len2 = src_len / 2; + size_t len = (dst_len4 < src_len2) ? dst_len4 : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; + // TODO: unroll. + while (n >= 1) { - uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + uint32_t s0 = ((uint32_t)(s[1]) << 24) | ((uint32_t)(s[0]) * 0x010101); wuffs_base__poke_u32le__no_bounds_check( d + (0 * 4), - wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul(s0)); + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul(s0)); - s += 1 * 4; + s += 1 * 2; d += 1 * 4; n -= 1; } @@ -23129,7 +26593,7 @@ wuffs_private_impl__swizzle_bgra_nonpremul__rgba_premul__src( } static uint64_t // -wuffs_private_impl__swizzle_bgra_nonpremul__rgba_premul__src_over( +wuffs_private_impl__swizzle_bgra_premul__ya_nonpremul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, @@ -23137,21 +26601,22 @@ wuffs_private_impl__swizzle_bgra_nonpremul__rgba_premul__src_over( const uint8_t* src_ptr, size_t src_len) { size_t dst_len4 = dst_len / 4; - size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + size_t src_len2 = src_len / 2; + size_t len = (dst_len4 < src_len2) ? dst_len4 : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; + // TODO: unroll. + while (n >= 1) { uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); - uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + uint32_t s0 = ((uint32_t)(s[1]) << 24) | ((uint32_t)(s[0]) * 0x010101); wuffs_base__poke_u32le__no_bounds_check( d + (0 * 4), - wuffs_private_impl__composite_nonpremul_premul_u32_axxx(d0, s0)); + wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, s0)); - s += 1 * 4; + s += 1 * 2; d += 1 * 4; n -= 1; } @@ -23162,333 +26627,414 @@ wuffs_private_impl__swizzle_bgra_nonpremul__rgba_premul__src_over( // -------- static uint64_t // -wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__bgra_nonpremul__src( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; - size_t src_len4 = src_len / 4; - size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; +wuffs_private_impl__swizzle_bgrw__bgr(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len3 = src_len / 3; + size_t len = (dst_len4 < src_len3) ? dst_len4 : src_len3; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; + size_t n = len; + + // TODO: unroll. + + while (n >= 1) { + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + 0xFF000000 | wuffs_base__peek_u24le__no_bounds_check(s + (0 * 3))); + s += 1 * 3; + d += 1 * 4; + n -= 1; + } + + return len; +} + +static uint64_t // +wuffs_private_impl__swizzle_bgrw__bgr_565(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len2 = src_len / 2; + size_t len = (dst_len4 < src_len2) ? dst_len4 : src_len2; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; size_t n = len; + + // TODO: unroll. + while (n >= 1) { - uint8_t s0 = s[0]; - uint8_t s1 = s[1]; - uint8_t s2 = s[2]; - uint8_t s3 = s[3]; - d[0] = s0; - d[1] = s0; - d[2] = s1; - d[3] = s1; - d[4] = s2; - d[5] = s2; - d[6] = s3; - d[7] = s3; + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( + wuffs_base__peek_u16le__no_bounds_check(s + (0 * 2)))); - s += 1 * 4; - d += 1 * 8; + s += 1 * 2; + d += 1 * 4; n -= 1; } + return len; } static uint64_t // -wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__bgra_nonpremul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; +wuffs_private_impl__swizzle_bgrw__bgrx(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; size_t src_len4 = src_len / 4; - size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; + + // TODO: unroll. + while (n >= 1) { - uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); - uint64_t s0 = wuffs_base__color_u32__as__color_u64( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); - wuffs_base__poke_u64le__no_bounds_check( - d + (0 * 8), - wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx(d0, s0)); + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), + 0xFF000000 | wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); s += 1 * 4; - d += 1 * 8; + d += 1 * 4; n -= 1; } + return len; } +// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") static uint64_t // -wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__bgra_nonpremul_4x16le__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; - size_t src_len8 = src_len / 8; - size_t len = (dst_len8 < src_len8) ? dst_len8 : src_len8; +wuffs_private_impl__swizzle_bgrw__bgr__x86_sse42(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len3 = src_len / 3; + size_t len = (dst_len4 < src_len3) ? dst_len4 : src_len3; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; + + __m128i shuffle = _mm_set_epi8(+0x00, +0x0B, +0x0A, +0x09, // + +0x00, +0x08, +0x07, +0x06, // + +0x00, +0x05, +0x04, +0x03, // + +0x00, +0x02, +0x01, +0x00); + __m128i or_ff = _mm_set_epi8(-0x01, +0x00, +0x00, +0x00, // + -0x01, +0x00, +0x00, +0x00, // + -0x01, +0x00, +0x00, +0x00, // + -0x01, +0x00, +0x00, +0x00); + + while (n >= 6) { + __m128i x; + x = _mm_lddqu_si128((const __m128i*)(const void*)s); + x = _mm_shuffle_epi8(x, shuffle); + x = _mm_or_si128(x, or_ff); + _mm_storeu_si128((__m128i*)(void*)d, x); + + s += 4 * 3; + d += 4 * 4; + n -= 4; + } + while (n >= 1) { - uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); - uint64_t s0 = wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)); - wuffs_base__poke_u64le__no_bounds_check( - d + (0 * 8), - wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx(d0, s0)); + uint8_t b0 = s[0]; + uint8_t b1 = s[1]; + uint8_t b2 = s[2]; + d[0] = b0; + d[1] = b1; + d[2] = b2; + d[3] = 0xFF; - s += 1 * 8; - d += 1 * 8; + s += 1 * 3; + d += 1 * 4; n -= 1; } + return len; } +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") static uint64_t // -wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__bgra_premul__src( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; - size_t src_len4 = src_len / 4; - size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; +wuffs_private_impl__swizzle_bgrw__rgb__x86_sse42(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len3 = src_len / 3; + size_t len = (dst_len4 < src_len3) ? dst_len4 : src_len3; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; + + __m128i shuffle = _mm_set_epi8(+0x00, +0x09, +0x0A, +0x0B, // + +0x00, +0x06, +0x07, +0x08, // + +0x00, +0x03, +0x04, +0x05, // + +0x00, +0x00, +0x01, +0x02); + __m128i or_ff = _mm_set_epi8(-0x01, +0x00, +0x00, +0x00, // + -0x01, +0x00, +0x00, +0x00, // + -0x01, +0x00, +0x00, +0x00, // + -0x01, +0x00, +0x00, +0x00); + + while (n >= 6) { + __m128i x; + x = _mm_lddqu_si128((const __m128i*)(const void*)s); + x = _mm_shuffle_epi8(x, shuffle); + x = _mm_or_si128(x, or_ff); + _mm_storeu_si128((__m128i*)(void*)d, x); + + s += 4 * 3; + d += 4 * 4; + n -= 4; + } + while (n >= 1) { - uint64_t s0 = wuffs_base__color_u32__as__color_u64( - wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))); - wuffs_base__poke_u64le__no_bounds_check(d + (0 * 8), s0); + uint8_t b0 = s[0]; + uint8_t b1 = s[1]; + uint8_t b2 = s[2]; + d[0] = b2; + d[1] = b1; + d[2] = b0; + d[3] = 0xFF; - s += 1 * 4; - d += 1 * 8; + s += 1 * 3; + d += 1 * 4; n -= 1; } + return len; } +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 static uint64_t // -wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__bgra_premul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; - size_t src_len4 = src_len / 4; - size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; +wuffs_private_impl__swizzle_bgrw__rgb(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len3 = src_len / 3; + size_t len = (dst_len4 < src_len3) ? dst_len4 : src_len3; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; + while (n >= 1) { - uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); - uint64_t s0 = wuffs_base__color_u32__as__color_u64( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); - wuffs_base__poke_u64le__no_bounds_check( - d + (0 * 8), - wuffs_private_impl__composite_nonpremul_premul_u64_axxx(d0, s0)); + uint8_t b0 = s[0]; + uint8_t b1 = s[1]; + uint8_t b2 = s[2]; + d[0] = b2; + d[1] = b1; + d[2] = b0; + d[3] = 0xFF; - s += 1 * 4; - d += 1 * 8; + s += 1 * 3; + d += 1 * 4; n -= 1; } + return len; } static uint64_t // -wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__index_bgra_nonpremul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - if (dst_palette_len != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return 0; - } - size_t dst_len8 = dst_len / 8; - size_t len = (dst_len8 < src_len) ? dst_len8 : src_len; +wuffs_private_impl__swizzle_bgrw__rgbx(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len4 = dst_len / 4; + size_t src_len4 = src_len / 4; + size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; + // TODO: unroll. + while (n >= 1) { - uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); - uint64_t s0 = wuffs_base__color_u32__as__color_u64( - wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[0] * 4))); - wuffs_base__poke_u64le__no_bounds_check( - d + (0 * 8), - wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx(d0, s0)); + uint8_t b0 = s[0]; + uint8_t b1 = s[1]; + uint8_t b2 = s[2]; + d[0] = b2; + d[1] = b1; + d[2] = b0; + d[3] = 0xFF; - s += 1 * 1; - d += 1 * 8; + s += 1 * 4; + d += 1 * 4; n -= 1; } return len; } +// -------- + static uint64_t // -wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__rgba_nonpremul__src( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_bgrw_4x16le__bgr(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { size_t dst_len8 = dst_len / 8; - size_t src_len4 = src_len / 4; - size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; + size_t src_len3 = src_len / 3; + size_t len = (dst_len8 < src_len3) ? dst_len8 : src_len3; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; + while (n >= 1) { uint8_t s0 = s[0]; uint8_t s1 = s[1]; uint8_t s2 = s[2]; - uint8_t s3 = s[3]; - d[0] = s2; - d[1] = s2; + d[0] = s0; + d[1] = s0; d[2] = s1; d[3] = s1; - d[4] = s0; - d[5] = s0; - d[6] = s3; - d[7] = s3; + d[4] = s2; + d[5] = s2; + d[6] = 0xFF; + d[7] = 0xFF; - s += 1 * 4; + s += 1 * 3; d += 1 * 8; n -= 1; } + return len; } static uint64_t // -wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__rgba_nonpremul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_bgrw_4x16le__bgr_565(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { size_t dst_len8 = dst_len / 8; - size_t src_len4 = src_len / 4; - size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; + size_t src_len2 = src_len / 2; + size_t len = (dst_len8 < src_len2) ? dst_len8 : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; + while (n >= 1) { - uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); - uint64_t s0 = wuffs_base__color_u32__as__color_u64( - wuffs_private_impl__swap_u32_argb_abgr( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))); wuffs_base__poke_u64le__no_bounds_check( d + (0 * 8), - wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx(d0, s0)); + wuffs_base__color_u32__as__color_u64( + wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( + wuffs_base__peek_u16le__no_bounds_check(s + (0 * 2))))); - s += 1 * 4; + s += 1 * 2; d += 1 * 8; n -= 1; } + return len; } static uint64_t // -wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__rgba_premul__src( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_bgrw_4x16le__bgrx(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { size_t dst_len8 = dst_len / 8; size_t src_len4 = src_len / 4; size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; + while (n >= 1) { - uint64_t s0 = wuffs_base__color_u32__as__color_u64( - wuffs_base__color_u32_argb_premul__as__color_u32_argb_nonpremul( - wuffs_private_impl__swap_u32_argb_abgr( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))))); - wuffs_base__poke_u64le__no_bounds_check(d + (0 * 8), s0); + uint8_t s0 = s[0]; + uint8_t s1 = s[1]; + uint8_t s2 = s[2]; + d[0] = s0; + d[1] = s0; + d[2] = s1; + d[3] = s1; + d[4] = s2; + d[5] = s2; + d[6] = 0xFF; + d[7] = 0xFF; s += 1 * 4; d += 1 * 8; n -= 1; } + return len; } static uint64_t // -wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__rgba_premul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_bgrw_4x16le__rgb(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { size_t dst_len8 = dst_len / 8; - size_t src_len4 = src_len / 4; - size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; + size_t src_len3 = src_len / 3; + size_t len = (dst_len8 < src_len3) ? dst_len8 : src_len3; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; + while (n >= 1) { - uint64_t d0 = wuffs_base__peek_u64le__no_bounds_check(d + (0 * 8)); - uint64_t s0 = wuffs_base__color_u32__as__color_u64( - wuffs_private_impl__swap_u32_argb_abgr( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))); - wuffs_base__poke_u64le__no_bounds_check( - d + (0 * 8), - wuffs_private_impl__composite_nonpremul_premul_u64_axxx(d0, s0)); + uint8_t s0 = s[0]; + uint8_t s1 = s[1]; + uint8_t s2 = s[2]; + d[0] = s2; + d[1] = s2; + d[2] = s1; + d[3] = s1; + d[4] = s0; + d[5] = s0; + d[6] = 0xFF; + d[7] = 0xFF; - s += 1 * 4; + s += 1 * 3; d += 1 * 8; n -= 1; } + return len; } // -------- static uint64_t // -wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul__src( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; +wuffs_private_impl__swizzle_rgb__bgr_565(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; + size_t src_len2 = src_len / 2; + size_t len = (dst_len3 < src_len2) ? dst_len3 : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -23496,21 +27042,24 @@ wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul__src( // TODO: unroll. while (n >= 1) { - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul(s0)); + wuffs_base__poke_u24le__no_bounds_check( + d + (0 * 3), + wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( + wuffs_base__peek_u16le__no_bounds_check(s + (0 * 2))))); - s += 1 * 4; - d += 1 * 4; + s += 1 * 2; + d += 1 * 3; n -= 1; } return len; } +// -------- + static uint64_t // -wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul_4x16le__src( +wuffs_private_impl__swizzle_rgba_nonpremul__bgra_nonpremul_4x16le__src( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, @@ -23522,26 +27071,23 @@ wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul_4x16le__src( size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; - - // TODO: unroll. + size_t n = len; while (n >= 1) { - uint64_t s0 = wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)); wuffs_base__poke_u32le__no_bounds_check( d + (0 * 4), - wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul(s0)); + wuffs_private_impl__color_u64__as__color_u32__swap_u32_argb_abgr( + wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)))); s += 1 * 8; d += 1 * 4; n -= 1; } - return len; } static uint64_t // -wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul__src_over( +wuffs_private_impl__swizzle_rgba_nonpremul__bgra_nonpremul_4x16le__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, @@ -23549,22 +27095,24 @@ wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul__src_over( const uint8_t* src_ptr, size_t src_len) { size_t dst_len4 = dst_len / 4; - size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + size_t src_len8 = src_len / 8; + size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - // TODO: unroll. - while (n >= 1) { - uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); + uint64_t d0 = wuffs_base__color_u32__as__color_u64( + wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4))); + uint64_t s0 = wuffs_private_impl__swap_u64_argb_abgr( + wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8))); wuffs_base__poke_u32le__no_bounds_check( d + (0 * 4), - wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, s0)); + wuffs_base__color_u64__as__color_u32( + wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx(d0, + s0))); - s += 1 * 4; + s += 1 * 8; d += 1 * 4; n -= 1; } @@ -23572,17 +27120,18 @@ wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul__src_over( return len; } +// -------- + static uint64_t // -wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul_4x16le__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_rgbw__bgr_565(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { size_t dst_len4 = dst_len / 4; - size_t src_len8 = src_len / 8; - size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; + size_t src_len2 = src_len / 2; + size_t len = (dst_len4 < src_len2) ? dst_len4 : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -23590,15 +27139,13 @@ wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul_4x16le__src_over( // TODO: unroll. while (n >= 1) { - uint64_t d0 = wuffs_base__color_u32__as__color_u64( - wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4))); - uint64_t s0 = wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)); wuffs_base__poke_u32le__no_bounds_check( d + (0 * 4), - wuffs_base__color_u64__as__color_u32( - wuffs_private_impl__composite_premul_nonpremul_u64_axxx(d0, s0))); + wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( + wuffs_base__peek_u16le__no_bounds_check(s + (0 * 2))))); - s += 1 * 8; + s += 1 * 2; d += 1 * 4; n -= 1; } @@ -23606,32 +27153,60 @@ wuffs_private_impl__swizzle_bgra_premul__bgra_nonpremul_4x16le__src_over( return len; } +// -------- + static uint64_t // -wuffs_private_impl__swizzle_bgra_premul__bgra_premul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; +wuffs_private_impl__swizzle_xxx__index__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; + } + size_t dst_len3 = dst_len / 3; + size_t len = (dst_len3 < src_len) ? dst_len3 : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - // TODO: unroll. + const size_t loop_unroll_count = 4; - while (n >= 1) { - uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); + // The comparison in the while condition is ">", not ">=", because with + // ">=", the last 4-byte store could write past the end of the dst slice. + // + // Each 4-byte store writes one too many bytes, but a subsequent store + // will overwrite that with the correct byte. There is always another + // store, whether a 4-byte store in this loop or a 1-byte store in the + // next loop. + while (n > loop_unroll_count) { wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_private_impl__composite_premul_premul_u32_axxx(d0, s0)); + d + (0 * 3), wuffs_base__peek_u32le__no_bounds_check( + dst_palette_ptr + ((size_t)s[0] * 4))); + wuffs_base__poke_u32le__no_bounds_check( + d + (1 * 3), wuffs_base__peek_u32le__no_bounds_check( + dst_palette_ptr + ((size_t)s[1] * 4))); + wuffs_base__poke_u32le__no_bounds_check( + d + (2 * 3), wuffs_base__peek_u32le__no_bounds_check( + dst_palette_ptr + ((size_t)s[2] * 4))); + wuffs_base__poke_u32le__no_bounds_check( + d + (3 * 3), wuffs_base__peek_u32le__no_bounds_check( + dst_palette_ptr + ((size_t)s[3] * 4))); - s += 1 * 4; - d += 1 * 4; + s += loop_unroll_count * 1; + d += loop_unroll_count * 3; + n -= loop_unroll_count; + } + + while (n >= 1) { + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4)); + wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); + + s += 1 * 1; + d += 1 * 3; n -= 1; } @@ -23639,7 +27214,7 @@ wuffs_private_impl__swizzle_bgra_premul__bgra_premul__src_over( } static uint64_t // -wuffs_private_impl__swizzle_bgra_premul__index_bgra_nonpremul__src_over( +wuffs_private_impl__swizzle_xxx__index_bgra_nonpremul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, @@ -23650,8 +27225,8 @@ wuffs_private_impl__swizzle_bgra_premul__index_bgra_nonpremul__src_over( WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { return 0; } - size_t dst_len4 = dst_len / 4; - size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; + size_t dst_len3 = dst_len / 3; + size_t len = (dst_len3 < src_len) ? dst_len3 : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -23659,15 +27234,16 @@ wuffs_private_impl__swizzle_bgra_premul__index_bgra_nonpremul__src_over( // TODO: unroll. while (n >= 1) { - uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); + uint32_t d0 = + wuffs_base__peek_u24le__no_bounds_check(d + (0 * 3)) | 0xFF000000; uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + ((size_t)s[0] * 4)); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), + wuffs_base__poke_u24le__no_bounds_check( + d + (0 * 3), wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, s0)); s += 1 * 1; - d += 1 * 4; + d += 1 * 3; n -= 1; } @@ -23675,31 +27251,61 @@ wuffs_private_impl__swizzle_bgra_premul__index_bgra_nonpremul__src_over( } static uint64_t // -wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul__src( +wuffs_private_impl__swizzle_xxx__index_binary_alpha__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; + } + size_t dst_len3 = dst_len / 3; + size_t len = (dst_len3 < src_len) ? dst_len3 : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - // TODO: unroll. + const size_t loop_unroll_count = 4; + + while (n >= loop_unroll_count) { + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4)); + if (s0) { + wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); + } + uint32_t s1 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[1] * 4)); + if (s1) { + wuffs_base__poke_u24le__no_bounds_check(d + (1 * 3), s1); + } + uint32_t s2 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[2] * 4)); + if (s2) { + wuffs_base__poke_u24le__no_bounds_check(d + (2 * 3), s2); + } + uint32_t s3 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[3] * 4)); + if (s3) { + wuffs_base__poke_u24le__no_bounds_check(d + (3 * 3), s3); + } + + s += loop_unroll_count * 1; + d += loop_unroll_count * 3; + n -= loop_unroll_count; + } while (n >= 1) { - uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul(s0)); + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4)); + if (s0) { + wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); + } - s += 1 * 4; - d += 1 * 4; + s += 1 * 1; + d += 1 * 3; n -= 1; } @@ -23707,16 +27313,15 @@ wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul__src( } static uint64_t // -wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; +wuffs_private_impl__swizzle_xxx__xxxx(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -23724,15 +27329,11 @@ wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul__src_over( // TODO: unroll. while (n >= 1) { - uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); - uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, s0)); + wuffs_base__poke_u24le__no_bounds_check( + d + (0 * 3), wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); s += 1 * 4; - d += 1 * 4; + d += 1 * 3; n -= 1; } @@ -23740,16 +27341,14 @@ wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul__src_over( } static uint64_t // -wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul_4x16le__src( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len8 = src_len / 8; - size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; +wuffs_private_impl__swizzle_xxx__y(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; + size_t len = (dst_len3 < src_len) ? dst_len3 : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -23757,15 +27356,13 @@ wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul_4x16le__src( // TODO: unroll. while (n >= 1) { - uint64_t s0 = wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_private_impl__swap_u32_argb_abgr( - wuffs_base__color_u64_argb_nonpremul__as__color_u32_argb_premul( - s0))); + uint8_t s0 = s[0]; + d[0] = s0; + d[1] = s0; + d[2] = s0; - s += 1 * 8; - d += 1 * 4; + s += 1 * 1; + d += 1 * 3; n -= 1; } @@ -23773,16 +27370,15 @@ wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul_4x16le__src( } static uint64_t // -wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul_4x16le__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len8 = src_len / 8; - size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; +wuffs_private_impl__swizzle_xxx__y_16be(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; + size_t src_len2 = src_len / 2; + size_t len = (dst_len3 < src_len2) ? dst_len3 : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -23790,17 +27386,13 @@ wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul_4x16le__src_over( // TODO: unroll. while (n >= 1) { - uint64_t d0 = wuffs_base__color_u32__as__color_u64( - wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4))); - uint64_t s0 = wuffs_private_impl__swap_u64_argb_abgr( - wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8))); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_base__color_u64__as__color_u32( - wuffs_private_impl__composite_premul_nonpremul_u64_axxx(d0, s0))); + uint8_t s0 = s[0]; + d[0] = s0; + d[1] = s0; + d[2] = s0; - s += 1 * 8; - d += 1 * 4; + s += 1 * 2; + d += 1 * 3; n -= 1; } @@ -23808,48 +27400,46 @@ wuffs_private_impl__swizzle_bgra_premul__rgba_nonpremul_4x16le__src_over( } static uint64_t // -wuffs_private_impl__swizzle_bgra_premul__rgba_premul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; +wuffs_private_impl__swizzle_xxx__ya_nonpremul__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; + size_t src_len2 = src_len / 2; + size_t len = (dst_len3 < src_len2) ? dst_len3 : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; + // TODO: unroll. + while (n >= 1) { - uint32_t d0 = wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4)); - uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( - wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_private_impl__composite_premul_premul_u32_axxx(d0, s0)); + uint32_t s0 = ((uint32_t)(s[1]) << 24) | ((uint32_t)(s[0]) * 0x010101); + wuffs_base__poke_u24le__no_bounds_check( + d + (0 * 3), + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul(s0)); - s += 1 * 4; - d += 1 * 4; + s += 1 * 2; + d += 1 * 3; n -= 1; } return len; } -// -------- - static uint64_t // -wuffs_private_impl__swizzle_bgrw__bgr(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len3 = src_len / 3; - size_t len = (dst_len4 < src_len3) ? dst_len4 : src_len3; +wuffs_private_impl__swizzle_xxx__ya_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len3 = dst_len / 3; + size_t src_len2 = src_len / 2; + size_t len = (dst_len3 < src_len2) ? dst_len3 : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -23857,40 +27447,67 @@ wuffs_private_impl__swizzle_bgrw__bgr(uint8_t* dst_ptr, // TODO: unroll. while (n >= 1) { - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - 0xFF000000 | wuffs_base__peek_u24le__no_bounds_check(s + (0 * 3))); + uint32_t d0 = + wuffs_base__peek_u24le__no_bounds_check(d + (0 * 3)) | 0xFF000000; + uint32_t s0 = ((uint32_t)(s[1]) << 24) | ((uint32_t)(s[0]) * 0x010101); + wuffs_base__poke_u24le__no_bounds_check( + d + (0 * 3), + wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, s0)); - s += 1 * 3; - d += 1 * 4; + s += 1 * 2; + d += 1 * 3; n -= 1; } return len; } +// -------- + static uint64_t // -wuffs_private_impl__swizzle_bgrw__bgr_565(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_xxxx__index__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; + } size_t dst_len4 = dst_len / 4; - size_t src_len2 = src_len / 2; - size_t len = (dst_len4 < src_len2) ? dst_len4 : src_len2; + size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - // TODO: unroll. + const size_t loop_unroll_count = 4; + + while (n >= loop_unroll_count) { + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), wuffs_base__peek_u32le__no_bounds_check( + dst_palette_ptr + ((size_t)s[0] * 4))); + wuffs_base__poke_u32le__no_bounds_check( + d + (1 * 4), wuffs_base__peek_u32le__no_bounds_check( + dst_palette_ptr + ((size_t)s[1] * 4))); + wuffs_base__poke_u32le__no_bounds_check( + d + (2 * 4), wuffs_base__peek_u32le__no_bounds_check( + dst_palette_ptr + ((size_t)s[2] * 4))); + wuffs_base__poke_u32le__no_bounds_check( + d + (3 * 4), wuffs_base__peek_u32le__no_bounds_check( + dst_palette_ptr + ((size_t)s[3] * 4))); + + s += loop_unroll_count * 1; + d += loop_unroll_count * 4; + n -= loop_unroll_count; + } while (n >= 1) { wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( - wuffs_base__peek_u16le__no_bounds_check(s + (0 * 2)))); + d + (0 * 4), wuffs_base__peek_u32le__no_bounds_check( + dst_palette_ptr + ((size_t)s[0] * 4))); - s += 1 * 2; + s += 1 * 1; d += 1 * 4; n -= 1; } @@ -23899,27 +27516,60 @@ wuffs_private_impl__swizzle_bgrw__bgr_565(uint8_t* dst_ptr, } static uint64_t // -wuffs_private_impl__swizzle_bgrw__bgrx(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_xxxx__index_binary_alpha__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; + } size_t dst_len4 = dst_len / 4; - size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - // TODO: unroll. + const size_t loop_unroll_count = 4; + + while (n >= loop_unroll_count) { + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4)); + if (s0) { + wuffs_base__poke_u32le__no_bounds_check(d + (0 * 4), s0); + } + uint32_t s1 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[1] * 4)); + if (s1) { + wuffs_base__poke_u32le__no_bounds_check(d + (1 * 4), s1); + } + uint32_t s2 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[2] * 4)); + if (s2) { + wuffs_base__poke_u32le__no_bounds_check(d + (2 * 4), s2); + } + uint32_t s3 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[3] * 4)); + if (s3) { + wuffs_base__poke_u32le__no_bounds_check(d + (3 * 4), s3); + } + + s += loop_unroll_count * 1; + d += loop_unroll_count * 4; + n -= loop_unroll_count; + } while (n >= 1) { - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - 0xFF000000 | wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4)); + if (s0) { + wuffs_base__poke_u32le__no_bounds_check(d + (0 * 4), s0); + } - s += 1 * 4; + s += 1 * 1; d += 1 * 4; n -= 1; } @@ -23928,86 +27578,74 @@ wuffs_private_impl__swizzle_bgrw__bgrx(uint8_t* dst_ptr, } // ‼ WUFFS MULTI-FILE SECTION +x86_sse42 -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") static uint64_t // -wuffs_private_impl__swizzle_bgrw__rgb__x86_sse42(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_xxxx__y__x86_sse42(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { size_t dst_len4 = dst_len / 4; - size_t src_len3 = src_len / 3; - size_t len = (dst_len4 < src_len3) ? dst_len4 : src_len3; + size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - __m128i shuffle = _mm_set_epi8(+0x00, +0x09, +0x0A, +0x0B, // - +0x00, +0x06, +0x07, +0x08, // - +0x00, +0x03, +0x04, +0x05, // - +0x00, +0x00, +0x01, +0x02); + __m128i shuffle = _mm_set_epi8(+0x03, +0x03, +0x03, +0x03, // + +0x02, +0x02, +0x02, +0x02, // + +0x01, +0x01, +0x01, +0x01, // + +0x00, +0x00, +0x00, +0x00); __m128i or_ff = _mm_set_epi8(-0x01, +0x00, +0x00, +0x00, // -0x01, +0x00, +0x00, +0x00, // -0x01, +0x00, +0x00, +0x00, // -0x01, +0x00, +0x00, +0x00); - while (n >= 6) { + while (n >= 4) { __m128i x; - x = _mm_lddqu_si128((const __m128i*)(const void*)s); + x = _mm_cvtsi32_si128((int)(wuffs_base__peek_u32le__no_bounds_check(s))); x = _mm_shuffle_epi8(x, shuffle); x = _mm_or_si128(x, or_ff); _mm_storeu_si128((__m128i*)(void*)d, x); - s += 4 * 3; + s += 4 * 1; d += 4 * 4; n -= 4; } while (n >= 1) { - uint8_t b0 = s[0]; - uint8_t b1 = s[1]; - uint8_t b2 = s[2]; - d[0] = b2; - d[1] = b1; - d[2] = b0; - d[3] = 0xFF; + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), 0xFF000000 | (0x010101 * (uint32_t)s[0])); - s += 1 * 3; + s += 1 * 1; d += 1 * 4; n -= 1; } return len; } -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) // ‼ WUFFS MULTI-FILE SECTION -x86_sse42 static uint64_t // -wuffs_private_impl__swizzle_bgrw__rgb(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_xxxx__y(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { size_t dst_len4 = dst_len / 4; - size_t src_len3 = src_len / 3; - size_t len = (dst_len4 < src_len3) ? dst_len4 : src_len3; + size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; while (n >= 1) { - uint8_t b0 = s[0]; - uint8_t b1 = s[1]; - uint8_t b2 = s[2]; - d[0] = b2; - d[1] = b1; - d[2] = b0; - d[3] = 0xFF; + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), 0xFF000000 | (0x010101 * (uint32_t)s[0])); - s += 1 * 3; + s += 1 * 1; d += 1 * 4; n -= 1; } @@ -24016,31 +27654,24 @@ wuffs_private_impl__swizzle_bgrw__rgb(uint8_t* dst_ptr, } static uint64_t // -wuffs_private_impl__swizzle_bgrw__rgbx(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_xxxx__y_16be(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { size_t dst_len4 = dst_len / 4; - size_t src_len4 = src_len / 4; - size_t len = (dst_len4 < src_len4) ? dst_len4 : src_len4; + size_t src_len2 = src_len / 2; + size_t len = (dst_len4 < src_len2) ? dst_len4 : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - // TODO: unroll. - while (n >= 1) { - uint8_t b0 = s[0]; - uint8_t b1 = s[1]; - uint8_t b2 = s[2]; - d[0] = b2; - d[1] = b1; - d[2] = b0; - d[3] = 0xFF; + wuffs_base__poke_u32le__no_bounds_check( + d + (0 * 4), 0xFF000000 | (0x010101 * (uint32_t)s[0])); - s += 1 * 4; + s += 1 * 2; d += 1 * 4; n -= 1; } @@ -24051,33 +27682,29 @@ wuffs_private_impl__swizzle_bgrw__rgbx(uint8_t* dst_ptr, // -------- static uint64_t // -wuffs_private_impl__swizzle_bgrw_4x16le__bgr(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_xxxxxxxx__index__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; + } size_t dst_len8 = dst_len / 8; - size_t src_len3 = src_len / 3; - size_t len = (dst_len8 < src_len3) ? dst_len8 : src_len3; + size_t len = (dst_len8 < src_len) ? dst_len8 : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; while (n >= 1) { - uint8_t s0 = s[0]; - uint8_t s1 = s[1]; - uint8_t s2 = s[2]; - d[0] = s0; - d[1] = s0; - d[2] = s1; - d[3] = s1; - d[4] = s2; - d[5] = s2; - d[6] = 0xFF; - d[7] = 0xFF; + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), wuffs_base__color_u32__as__color_u64( + wuffs_base__peek_u32le__no_bounds_check( + dst_palette_ptr + ((size_t)s[0] * 4)))); - s += 1 * 3; + s += 1 * 1; d += 1 * 8; n -= 1; } @@ -24086,27 +27713,32 @@ wuffs_private_impl__swizzle_bgrw_4x16le__bgr(uint8_t* dst_ptr, } static uint64_t // -wuffs_private_impl__swizzle_bgrw_4x16le__bgr_565(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_xxxxxxxx__index_binary_alpha__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; + } size_t dst_len8 = dst_len / 8; - size_t src_len2 = src_len / 2; - size_t len = (dst_len8 < src_len2) ? dst_len8 : src_len2; + size_t len = (dst_len8 < src_len) ? dst_len8 : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; while (n >= 1) { - wuffs_base__poke_u64le__no_bounds_check( - d + (0 * 8), - wuffs_base__color_u32__as__color_u64( - wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( - wuffs_base__peek_u16le__no_bounds_check(s + (0 * 2))))); + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4)); + if (s0) { + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), wuffs_base__color_u32__as__color_u64(s0)); + } - s += 1 * 2; + s += 1 * 1; d += 1 * 8; n -= 1; } @@ -24115,33 +27747,23 @@ wuffs_private_impl__swizzle_bgrw_4x16le__bgr_565(uint8_t* dst_ptr, } static uint64_t // -wuffs_private_impl__swizzle_bgrw_4x16le__bgrx(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_xxxxxxxx__y(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { size_t dst_len8 = dst_len / 8; - size_t src_len4 = src_len / 4; - size_t len = (dst_len8 < src_len4) ? dst_len8 : src_len4; + size_t len = (dst_len8 < src_len) ? dst_len8 : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; while (n >= 1) { - uint8_t s0 = s[0]; - uint8_t s1 = s[1]; - uint8_t s2 = s[2]; - d[0] = s0; - d[1] = s0; - d[2] = s1; - d[3] = s1; - d[4] = s2; - d[5] = s2; - d[6] = 0xFF; - d[7] = 0xFF; + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), 0xFFFF000000000000 | (0x010101010101 * (uint64_t)s[0])); - s += 1 * 4; + s += 1 * 1; d += 1 * 8; n -= 1; } @@ -24150,33 +27772,26 @@ wuffs_private_impl__swizzle_bgrw_4x16le__bgrx(uint8_t* dst_ptr, } static uint64_t // -wuffs_private_impl__swizzle_bgrw_4x16le__rgb(uint8_t* dst_ptr, +wuffs_private_impl__swizzle_xxxxxxxx__y_16be(uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { size_t dst_len8 = dst_len / 8; - size_t src_len3 = src_len / 3; - size_t len = (dst_len8 < src_len3) ? dst_len8 : src_len3; + size_t src_len2 = src_len / 2; + size_t len = (dst_len8 < src_len2) ? dst_len8 : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; while (n >= 1) { - uint8_t s0 = s[0]; - uint8_t s1 = s[1]; - uint8_t s2 = s[2]; - d[0] = s2; - d[1] = s2; - d[2] = s1; - d[3] = s1; - d[4] = s0; - d[5] = s0; - d[6] = 0xFF; - d[7] = 0xFF; + uint64_t s0 = + ((uint64_t)(wuffs_base__peek_u16be__no_bounds_check(s + (0 * 2)))); + wuffs_base__poke_u64le__no_bounds_check( + d + (0 * 8), 0xFFFF000000000000 | (0x000100010001 * s0)); - s += 1 * 3; + s += 1 * 2; d += 1 * 8; n -= 1; } @@ -24187,15 +27802,42 @@ wuffs_private_impl__swizzle_bgrw_4x16le__rgb(uint8_t* dst_ptr, // -------- static uint64_t // -wuffs_private_impl__swizzle_rgb__bgr_565(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; +wuffs_private_impl__swizzle_y__bgr(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t src_len3 = src_len / 3; + size_t len = (dst_len < src_len3) ? dst_len : src_len3; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; + + // TODO: unroll. + + while (n >= 1) { + uint32_t s0 = + 0xFF000000 | wuffs_base__peek_u24le__no_bounds_check(s + (0 * 3)); + d[0] = wuffs_base__color_u32_argb_premul__as__color_u8_gray(s0); + + s += 1 * 3; + d += 1 * 1; + n -= 1; + } + + return len; +} + +static uint64_t // +wuffs_private_impl__swizzle_y__bgr_565(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { size_t src_len2 = src_len / 2; - size_t len = (dst_len3 < src_len2) ? dst_len3 : src_len2; + size_t len = (dst_len < src_len2) ? dst_len : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -24203,96 +27845,87 @@ wuffs_private_impl__swizzle_rgb__bgr_565(uint8_t* dst_ptr, // TODO: unroll. while (n >= 1) { - wuffs_base__poke_u24le__no_bounds_check( - d + (0 * 3), - wuffs_private_impl__swap_u32_argb_abgr( - wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( - wuffs_base__peek_u16le__no_bounds_check(s + (0 * 2))))); + uint32_t s0 = wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( + wuffs_base__peek_u16le__no_bounds_check(s + (0 * 2))); + d[0] = wuffs_base__color_u32_argb_premul__as__color_u8_gray(s0); s += 1 * 2; - d += 1 * 3; + d += 1 * 1; n -= 1; } return len; } -// -------- - static uint64_t // -wuffs_private_impl__swizzle_rgba_nonpremul__bgra_nonpremul_4x16le__src( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len8 = src_len / 8; - size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; +wuffs_private_impl__swizzle_y__bgra_nonpremul__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t src_len4 = src_len / 4; + size_t len = (dst_len < src_len4) ? dst_len : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; - size_t n = len; + + // TODO: unroll. + while (n >= 1) { - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_private_impl__color_u64__as__color_u32__swap_u32_argb_abgr( - wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8)))); + uint32_t s0 = + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + d[0] = wuffs_base__color_u32_argb_premul__as__color_u8_gray(s0); - s += 1 * 8; - d += 1 * 4; + s += 1 * 4; + d += 1 * 1; n -= 1; } + return len; } static uint64_t // -wuffs_private_impl__swizzle_rgba_nonpremul__bgra_nonpremul_4x16le__src_over( +wuffs_private_impl__swizzle_y__bgra_nonpremul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len8 = src_len / 8; - size_t len = (dst_len4 < src_len8) ? dst_len4 : src_len8; + size_t src_len4 = src_len / 4; + size_t len = (dst_len < src_len4) ? dst_len : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; + // TODO: unroll. + while (n >= 1) { - uint64_t d0 = wuffs_base__color_u32__as__color_u64( - wuffs_base__peek_u32le__no_bounds_check(d + (0 * 4))); - uint64_t s0 = wuffs_private_impl__swap_u64_argb_abgr( - wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8))); - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_base__color_u64__as__color_u32( - wuffs_private_impl__composite_nonpremul_nonpremul_u64_axxx(d0, - s0))); + uint32_t d0 = 0xFF000000 | (0x00010101 * ((uint32_t)(d[0]))); + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); + d[0] = wuffs_base__color_u32_argb_premul__as__color_u8_gray( + wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, s0)); - s += 1 * 8; - d += 1 * 4; + s += 1 * 4; + d += 1 * 1; n -= 1; } return len; } -// -------- - static uint64_t // -wuffs_private_impl__swizzle_rgbw__bgr_565(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t src_len2 = src_len / 2; - size_t len = (dst_len4 < src_len2) ? dst_len4 : src_len2; +wuffs_private_impl__swizzle_y__bgra_nonpremul_4x16le__src( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t src_len8 = src_len / 8; + size_t len = (dst_len < src_len8) ? dst_len : src_len8; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -24300,74 +27933,58 @@ wuffs_private_impl__swizzle_rgbw__bgr_565(uint8_t* dst_ptr, // TODO: unroll. while (n >= 1) { - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), - wuffs_private_impl__swap_u32_argb_abgr( - wuffs_base__color_u16_rgb_565__as__color_u32_argb_premul( - wuffs_base__peek_u16le__no_bounds_check(s + (0 * 2))))); + d[0] = wuffs_base__color_u64_argb_nonpremul__as__color_u8_gray( + wuffs_base__peek_u64le__no_bounds_check(s + (0 * 8))); - s += 1 * 2; - d += 1 * 4; + s += 1 * 8; + d += 1 * 1; n -= 1; } return len; } -// -------- - static uint64_t // -wuffs_private_impl__swizzle_xxx__index__src(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - if (dst_palette_len != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return 0; - } - size_t dst_len3 = dst_len / 3; - size_t len = (dst_len3 < src_len) ? dst_len3 : src_len; +wuffs_private_impl__swizzle_y__bgra_nonpremul_4x16le__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t src_len8 = src_len / 8; + size_t len = (dst_len < src_len8) ? dst_len : src_len8; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - const size_t loop_unroll_count = 4; + // TODO: unroll. - // The comparison in the while condition is ">", not ">=", because with - // ">=", the last 4-byte store could write past the end of the dst slice. - // - // Each 4-byte store writes one too many bytes, but a subsequent store - // will overwrite that with the correct byte. There is always another - // store, whether a 4-byte store in this loop or a 1-byte store in the - // next loop. - while (n > loop_unroll_count) { - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 3), wuffs_base__peek_u32le__no_bounds_check( - dst_palette_ptr + ((size_t)s[0] * 4))); - wuffs_base__poke_u32le__no_bounds_check( - d + (1 * 3), wuffs_base__peek_u32le__no_bounds_check( - dst_palette_ptr + ((size_t)s[1] * 4))); - wuffs_base__poke_u32le__no_bounds_check( - d + (2 * 3), wuffs_base__peek_u32le__no_bounds_check( - dst_palette_ptr + ((size_t)s[2] * 4))); - wuffs_base__poke_u32le__no_bounds_check( - d + (3 * 3), wuffs_base__peek_u32le__no_bounds_check( - dst_palette_ptr + ((size_t)s[3] * 4))); + while (n >= 1) { + // Extract 16-bit color components. + uint32_t dr = 0x101 * ((uint32_t)d[0]); + uint32_t dg = 0x101 * ((uint32_t)d[0]); + uint32_t db = 0x101 * ((uint32_t)d[0]); + uint32_t sa = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 6)); + uint32_t sr = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 4)); + uint32_t sg = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 2)); + uint32_t sb = ((uint32_t)wuffs_base__peek_u16le__no_bounds_check(s + 0)); - s += loop_unroll_count * 1; - d += loop_unroll_count * 3; - n -= loop_unroll_count; - } + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; - while (n >= 1) { - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[0] * 4)); - wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); + // Composite src (nonpremul) over dst (premul). + dr = ((sr * sa) + (dr * ia)) / 0xFFFF; + dg = ((sg * sa) + (dg * ia)) / 0xFFFF; + db = ((sb * sa) + (db * ia)) / 0xFFFF; - s += 1 * 1; - d += 1 * 3; + // Convert to 16-bit color to 8-bit gray. + uint32_t weighted_average = + (19595 * dr) + (38470 * dg) + (7471 * db) + 32768; + d[0] = (uint8_t)(weighted_average >> 24); + + s += 1 * 8; + d += 1 * 1; n -= 1; } @@ -24375,19 +27992,14 @@ wuffs_private_impl__swizzle_xxx__index__src(uint8_t* dst_ptr, } static uint64_t // -wuffs_private_impl__swizzle_xxx__index_bgra_nonpremul__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - if (dst_palette_len != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return 0; - } - size_t dst_len3 = dst_len / 3; - size_t len = (dst_len3 < src_len) ? dst_len3 : src_len; +wuffs_private_impl__swizzle_y__bgra_premul__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t src_len4 = src_len / 4; + size_t len = (dst_len < src_len4) ? dst_len : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -24395,16 +28007,11 @@ wuffs_private_impl__swizzle_xxx__index_bgra_nonpremul__src_over( // TODO: unroll. while (n >= 1) { - uint32_t d0 = - wuffs_base__peek_u24le__no_bounds_check(d + (0 * 3)) | 0xFF000000; - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[0] * 4)); - wuffs_base__poke_u24le__no_bounds_check( - d + (0 * 3), - wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, s0)); + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); + d[0] = wuffs_base__color_u32_argb_premul__as__color_u8_gray(s0); - s += 1 * 1; - d += 1 * 3; + s += 1 * 4; + d += 1 * 1; n -= 1; } @@ -24412,61 +28019,45 @@ wuffs_private_impl__swizzle_xxx__index_bgra_nonpremul__src_over( } static uint64_t // -wuffs_private_impl__swizzle_xxx__index_binary_alpha__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - if (dst_palette_len != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return 0; - } - size_t dst_len3 = dst_len / 3; - size_t len = (dst_len3 < src_len) ? dst_len3 : src_len; +wuffs_private_impl__swizzle_y__bgra_premul__src_over(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t src_len4 = src_len / 4; + size_t len = (dst_len < src_len4) ? dst_len : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - const size_t loop_unroll_count = 4; + // TODO: unroll. - while (n >= loop_unroll_count) { - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[0] * 4)); - if (s0) { - wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); - } - uint32_t s1 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[1] * 4)); - if (s1) { - wuffs_base__poke_u24le__no_bounds_check(d + (1 * 3), s1); - } - uint32_t s2 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[2] * 4)); - if (s2) { - wuffs_base__poke_u24le__no_bounds_check(d + (2 * 3), s2); - } - uint32_t s3 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[3] * 4)); - if (s3) { - wuffs_base__poke_u24le__no_bounds_check(d + (3 * 3), s3); - } + while (n >= 1) { + // Extract 16-bit color components. + uint32_t dr = 0x101 * ((uint32_t)d[0]); + uint32_t dg = 0x101 * ((uint32_t)d[0]); + uint32_t db = 0x101 * ((uint32_t)d[0]); + uint32_t sa = 0x101 * ((uint32_t)s[3]); + uint32_t sr = 0x101 * ((uint32_t)s[2]); + uint32_t sg = 0x101 * ((uint32_t)s[1]); + uint32_t sb = 0x101 * ((uint32_t)s[0]); - s += loop_unroll_count * 1; - d += loop_unroll_count * 3; - n -= loop_unroll_count; - } + // Calculate the inverse of the src-alpha: how much of the dst to keep. + uint32_t ia = 0xFFFF - sa; - while (n >= 1) { - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[0] * 4)); - if (s0) { - wuffs_base__poke_u24le__no_bounds_check(d + (0 * 3), s0); - } + // Composite src (premul) over dst (premul). + dr = sr + ((dr * ia) / 0xFFFF); + dg = sg + ((dg * ia) / 0xFFFF); + db = sb + ((db * ia) / 0xFFFF); - s += 1 * 1; - d += 1 * 3; + // Convert to 16-bit color to 8-bit gray. + uint32_t weighted_average = + (19595 * dr) + (38470 * dg) + (7471 * db) + 32768; + d[0] = (uint8_t)(weighted_average >> 24); + + s += 1 * 4; + d += 1 * 1; n -= 1; } @@ -24474,15 +28065,14 @@ wuffs_private_impl__swizzle_xxx__index_binary_alpha__src_over( } static uint64_t // -wuffs_private_impl__swizzle_xxx__xxxx(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; +wuffs_private_impl__swizzle_y__bgrx(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { size_t src_len4 = src_len / 4; - size_t len = (dst_len3 < src_len4) ? dst_len3 : src_len4; + size_t len = (dst_len < src_len4) ? dst_len : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -24490,11 +28080,12 @@ wuffs_private_impl__swizzle_xxx__xxxx(uint8_t* dst_ptr, // TODO: unroll. while (n >= 1) { - wuffs_base__poke_u24le__no_bounds_check( - d + (0 * 3), wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + uint32_t s0 = + 0xFF000000 | wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)); + d[0] = wuffs_base__color_u32_argb_premul__as__color_u8_gray(s0); s += 1 * 4; - d += 1 * 3; + d += 1 * 1; n -= 1; } @@ -24502,14 +28093,14 @@ wuffs_private_impl__swizzle_xxx__xxxx(uint8_t* dst_ptr, } static uint64_t // -wuffs_private_impl__swizzle_xxx__y(uint8_t* dst_ptr, +wuffs_private_impl__swizzle_y__rgb(uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, size_t dst_palette_len, const uint8_t* src_ptr, size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t len = (dst_len3 < src_len) ? dst_len3 : src_len; + size_t src_len3 = src_len / 3; + size_t len = (dst_len < src_len3) ? dst_len : src_len3; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -24517,13 +28108,12 @@ wuffs_private_impl__swizzle_xxx__y(uint8_t* dst_ptr, // TODO: unroll. while (n >= 1) { - uint8_t s0 = s[0]; - d[0] = s0; - d[1] = s0; - d[2] = s0; + uint32_t s0 = + 0xFF000000 | wuffs_base__peek_u24be__no_bounds_check(s + (0 * 3)); + d[0] = wuffs_base__color_u32_argb_premul__as__color_u8_gray(s0); - s += 1 * 1; - d += 1 * 3; + s += 1 * 3; + d += 1 * 1; n -= 1; } @@ -24531,15 +28121,14 @@ wuffs_private_impl__swizzle_xxx__y(uint8_t* dst_ptr, } static uint64_t // -wuffs_private_impl__swizzle_xxx__y_16be(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len3 = dst_len / 3; - size_t src_len2 = src_len / 2; - size_t len = (dst_len3 < src_len2) ? dst_len3 : src_len2; +wuffs_private_impl__swizzle_y__rgba_nonpremul__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t src_len4 = src_len / 4; + size_t len = (dst_len < src_len4) ? dst_len : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; @@ -24547,66 +28136,44 @@ wuffs_private_impl__swizzle_xxx__y_16be(uint8_t* dst_ptr, // TODO: unroll. while (n >= 1) { - uint8_t s0 = s[0]; - d[0] = s0; - d[1] = s0; - d[2] = s0; + uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4)))); + d[0] = wuffs_base__color_u32_argb_premul__as__color_u8_gray(s0); - s += 1 * 2; - d += 1 * 3; + s += 1 * 4; + d += 1 * 1; n -= 1; } return len; } -// -------- - static uint64_t // -wuffs_private_impl__swizzle_xxxx__index__src(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - if (dst_palette_len != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return 0; - } - size_t dst_len4 = dst_len / 4; - size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; +wuffs_private_impl__swizzle_y__rgba_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t src_len4 = src_len / 4; + size_t len = (dst_len < src_len4) ? dst_len : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - const size_t loop_unroll_count = 4; - - while (n >= loop_unroll_count) { - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), wuffs_base__peek_u32le__no_bounds_check( - dst_palette_ptr + ((size_t)s[0] * 4))); - wuffs_base__poke_u32le__no_bounds_check( - d + (1 * 4), wuffs_base__peek_u32le__no_bounds_check( - dst_palette_ptr + ((size_t)s[1] * 4))); - wuffs_base__poke_u32le__no_bounds_check( - d + (2 * 4), wuffs_base__peek_u32le__no_bounds_check( - dst_palette_ptr + ((size_t)s[2] * 4))); - wuffs_base__poke_u32le__no_bounds_check( - d + (3 * 4), wuffs_base__peek_u32le__no_bounds_check( - dst_palette_ptr + ((size_t)s[3] * 4))); - - s += loop_unroll_count * 1; - d += loop_unroll_count * 4; - n -= loop_unroll_count; - } + // TODO: unroll. while (n >= 1) { - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), wuffs_base__peek_u32le__no_bounds_check( - dst_palette_ptr + ((size_t)s[0] * 4))); + uint32_t d0 = 0xFF000000 | (0x00010101 * ((uint32_t)(d[0]))); + uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + d[0] = wuffs_base__color_u32_argb_premul__as__color_u8_gray( + wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, s0)); - s += 1 * 1; - d += 1 * 4; + s += 1 * 4; + d += 1 * 1; n -= 1; } @@ -24614,137 +28181,111 @@ wuffs_private_impl__swizzle_xxxx__index__src(uint8_t* dst_ptr, } static uint64_t // -wuffs_private_impl__swizzle_xxxx__index_binary_alpha__src_over( - uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - if (dst_palette_len != - WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { - return 0; - } - size_t dst_len4 = dst_len / 4; - size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; +wuffs_private_impl__swizzle_y__rgba_premul__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t src_len4 = src_len / 4; + size_t len = (dst_len < src_len4) ? dst_len : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - const size_t loop_unroll_count = 4; - - while (n >= loop_unroll_count) { - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[0] * 4)); - if (s0) { - wuffs_base__poke_u32le__no_bounds_check(d + (0 * 4), s0); - } - uint32_t s1 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[1] * 4)); - if (s1) { - wuffs_base__poke_u32le__no_bounds_check(d + (1 * 4), s1); - } - uint32_t s2 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[2] * 4)); - if (s2) { - wuffs_base__poke_u32le__no_bounds_check(d + (2 * 4), s2); - } - uint32_t s3 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[3] * 4)); - if (s3) { - wuffs_base__poke_u32le__no_bounds_check(d + (3 * 4), s3); - } - - s += loop_unroll_count * 1; - d += loop_unroll_count * 4; - n -= loop_unroll_count; - } + // TODO: unroll. while (n >= 1) { - uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + - ((size_t)s[0] * 4)); - if (s0) { - wuffs_base__poke_u32le__no_bounds_check(d + (0 * 4), s0); - } + uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + d[0] = wuffs_base__color_u32_argb_premul__as__color_u8_gray(s0); - s += 1 * 1; - d += 1 * 4; + s += 1 * 4; + d += 1 * 1; n -= 1; } return len; } -// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") static uint64_t // -wuffs_private_impl__swizzle_xxxx__y__x86_sse42(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; +wuffs_private_impl__swizzle_y__rgba_premul__src_over(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t src_len4 = src_len / 4; + size_t len = (dst_len < src_len4) ? dst_len : src_len4; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; - __m128i shuffle = _mm_set_epi8(+0x03, +0x03, +0x03, +0x03, // - +0x02, +0x02, +0x02, +0x02, // - +0x01, +0x01, +0x01, +0x01, // - +0x00, +0x00, +0x00, +0x00); - __m128i or_ff = _mm_set_epi8(-0x01, +0x00, +0x00, +0x00, // - -0x01, +0x00, +0x00, +0x00, // - -0x01, +0x00, +0x00, +0x00, // - -0x01, +0x00, +0x00, +0x00); + // TODO: unroll. - while (n >= 4) { - __m128i x; - x = _mm_cvtsi32_si128((int)(wuffs_base__peek_u32le__no_bounds_check(s))); - x = _mm_shuffle_epi8(x, shuffle); - x = _mm_or_si128(x, or_ff); - _mm_storeu_si128((__m128i*)(void*)d, x); + while (n >= 1) { + uint32_t d0 = 0xFF000000 | (0x00010101 * ((uint32_t)(d[0]))); + uint32_t s0 = wuffs_private_impl__swap_u32_argb_abgr( + wuffs_base__peek_u32le__no_bounds_check(s + (0 * 4))); + d[0] = wuffs_base__color_u32_argb_premul__as__color_u8_gray( + wuffs_private_impl__composite_premul_premul_u32_axxx(d0, s0)); - s += 4 * 1; - d += 4 * 4; - n -= 4; + s += 1 * 4; + d += 1 * 1; + n -= 1; } + return len; +} + +static uint64_t // +wuffs_private_impl__swizzle_y__y_16be(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t src_len2 = src_len / 2; + size_t len = (dst_len < src_len2) ? dst_len : src_len2; + uint8_t* d = dst_ptr; + const uint8_t* s = src_ptr; + size_t n = len; + + // TODO: unroll. + while (n >= 1) { - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), 0xFF000000 | (0x010101 * (uint32_t)s[0])); + d[0] = s[0]; - s += 1 * 1; - d += 1 * 4; + s += 1 * 2; + d += 1 * 1; n -= 1; } return len; } -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 static uint64_t // -wuffs_private_impl__swizzle_xxxx__y(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; - size_t len = (dst_len4 < src_len) ? dst_len4 : src_len; +wuffs_private_impl__swizzle_y__ya_nonpremul__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t src_len2 = src_len / 2; + size_t len = (dst_len < src_len2) ? dst_len : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; + // TODO: unroll. + while (n >= 1) { - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), 0xFF000000 | (0x010101 * (uint32_t)s[0])); + uint32_t s0 = ((uint32_t)(s[1]) << 24) | ((uint32_t)(s[0]) * 0x010101); + d[0] = (uint8_t) + wuffs_base__color_u32_argb_nonpremul__as__color_u32_argb_premul(s0); - s += 1 * 1; - d += 1 * 4; + s += 1 * 2; + d += 1 * 1; n -= 1; } @@ -24752,58 +28293,57 @@ wuffs_private_impl__swizzle_xxxx__y(uint8_t* dst_ptr, } static uint64_t // -wuffs_private_impl__swizzle_xxxx__y_16be(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len4 = dst_len / 4; +wuffs_private_impl__swizzle_y__ya_nonpremul__src_over(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { size_t src_len2 = src_len / 2; - size_t len = (dst_len4 < src_len2) ? dst_len4 : src_len2; + size_t len = (dst_len < src_len2) ? dst_len : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; + // TODO: unroll. + while (n >= 1) { - wuffs_base__poke_u32le__no_bounds_check( - d + (0 * 4), 0xFF000000 | (0x010101 * (uint32_t)s[0])); + uint32_t d0 = 0xFF000000 | ((uint32_t)(d[0]) * 0x010101); + uint32_t s0 = ((uint32_t)(s[1]) << 24) | ((uint32_t)(s[0]) * 0x010101); + d[0] = (uint8_t)wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, + s0); s += 1 * 2; - d += 1 * 4; + d += 1 * 1; n -= 1; } return len; } -// -------- - static uint64_t // -wuffs_private_impl__swizzle_xxxxxxxx__index__src(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_y__index__src(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { if (dst_palette_len != WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { return 0; } - size_t dst_len8 = dst_len / 8; - size_t len = (dst_len8 < src_len) ? dst_len8 : src_len; + size_t len = (dst_len < src_len) ? dst_len : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; + // TODO: unroll. + while (n >= 1) { - wuffs_base__poke_u64le__no_bounds_check( - d + (0 * 8), wuffs_base__color_u32__as__color_u64( - wuffs_base__peek_u32le__no_bounds_check( - dst_palette_ptr + ((size_t)s[0] * 4)))); + d[0] = dst_palette_ptr[(size_t)s[0] * 4]; s += 1 * 1; - d += 1 * 8; + d += 1 * 1; n -= 1; } @@ -24811,7 +28351,7 @@ wuffs_private_impl__swizzle_xxxxxxxx__index__src(uint8_t* dst_ptr, } static uint64_t // -wuffs_private_impl__swizzle_xxxxxxxx__index_binary_alpha__src_over( +wuffs_private_impl__swizzle_y__index_bgra_nonpremul__src_over( uint8_t* dst_ptr, size_t dst_len, uint8_t* dst_palette_ptr, @@ -24822,22 +28362,22 @@ wuffs_private_impl__swizzle_xxxxxxxx__index_binary_alpha__src_over( WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { return 0; } - size_t dst_len8 = dst_len / 8; - size_t len = (dst_len8 < src_len) ? dst_len8 : src_len; + size_t len = (dst_len < src_len) ? dst_len : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; + // TODO: unroll. + while (n >= 1) { + uint32_t d0 = 0xFF000000 | (0x00010101 * ((uint32_t)(d[0]))); uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + ((size_t)s[0] * 4)); - if (s0) { - wuffs_base__poke_u64le__no_bounds_check( - d + (0 * 8), wuffs_base__color_u32__as__color_u64(s0)); - } + d[0] = wuffs_base__color_u32_argb_premul__as__color_u8_gray( + wuffs_private_impl__composite_premul_nonpremul_u32_axxx(d0, s0)); s += 1 * 1; - d += 1 * 8; + d += 1 * 1; n -= 1; } @@ -24845,52 +28385,33 @@ wuffs_private_impl__swizzle_xxxxxxxx__index_binary_alpha__src_over( } static uint64_t // -wuffs_private_impl__swizzle_xxxxxxxx__y(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; - size_t len = (dst_len8 < src_len) ? dst_len8 : src_len; - uint8_t* d = dst_ptr; - const uint8_t* s = src_ptr; - size_t n = len; - - while (n >= 1) { - wuffs_base__poke_u64le__no_bounds_check( - d + (0 * 8), 0xFFFF000000000000 | (0x010101010101 * (uint64_t)s[0])); - - s += 1 * 1; - d += 1 * 8; - n -= 1; +wuffs_private_impl__swizzle_y__index_binary_alpha__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + if (dst_palette_len != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return 0; } - - return len; -} - -static uint64_t // -wuffs_private_impl__swizzle_xxxxxxxx__y_16be(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { - size_t dst_len8 = dst_len / 8; - size_t src_len2 = src_len / 2; - size_t len = (dst_len8 < src_len2) ? dst_len8 : src_len2; + size_t len = (dst_len < src_len) ? dst_len : src_len; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; + // TODO: unroll. + while (n >= 1) { - uint64_t s0 = - ((uint64_t)(wuffs_base__peek_u16be__no_bounds_check(s + (0 * 2)))); - wuffs_base__poke_u64le__no_bounds_check( - d + (0 * 8), 0xFFFF000000000000 | (0x000100010001 * s0)); + uint32_t s0 = wuffs_base__peek_u32le__no_bounds_check(dst_palette_ptr + + ((size_t)s[0] * 4)); + if (s0) { + d[0] = (uint8_t)s0; + } - s += 1 * 2; - d += 1 * 8; + s += 1 * 1; + d += 1 * 1; n -= 1; } @@ -24900,36 +28421,43 @@ wuffs_private_impl__swizzle_xxxxxxxx__y_16be(uint8_t* dst_ptr, // -------- static uint64_t // -wuffs_private_impl__swizzle_y__y_16be(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_y_16le__y_16be(uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { + size_t dst_len2 = dst_len / 2; size_t src_len2 = src_len / 2; - size_t len = (dst_len < src_len2) ? dst_len : src_len2; + size_t len = (dst_len2 < src_len2) ? dst_len2 : src_len2; uint8_t* d = dst_ptr; const uint8_t* s = src_ptr; size_t n = len; while (n >= 1) { - d[0] = s[0]; + uint8_t s0 = s[0]; + uint8_t s1 = s[1]; + d[0] = s1; + d[1] = s0; s += 1 * 2; - d += 1 * 1; + d += 1 * 2; n -= 1; } return len; } +// -------- + static uint64_t // -wuffs_private_impl__swizzle_y_16le__y_16be(uint8_t* dst_ptr, - size_t dst_len, - uint8_t* dst_palette_ptr, - size_t dst_palette_len, - const uint8_t* src_ptr, - size_t src_len) { +wuffs_private_impl__swizzle_ya_nonpremul__ya_nonpremul__src_over( + uint8_t* dst_ptr, + size_t dst_len, + uint8_t* dst_palette_ptr, + size_t dst_palette_len, + const uint8_t* src_ptr, + size_t src_len) { size_t dst_len2 = dst_len / 2; size_t src_len2 = src_len / 2; size_t len = (dst_len2 < src_len2) ? dst_len2 : src_len2; @@ -24938,10 +28466,11 @@ wuffs_private_impl__swizzle_y_16le__y_16be(uint8_t* dst_ptr, size_t n = len; while (n >= 1) { - uint8_t s0 = s[0]; - uint8_t s1 = s[1]; - d[0] = s1; - d[1] = s0; + uint32_t d0 = ((uint32_t)(d[1]) << 24) | ((uint32_t)(d[0]) * 0x010101); + uint32_t s0 = ((uint32_t)(s[1]) << 24) | ((uint32_t)(s[0]) * 0x010101); + uint32_t c0 = + wuffs_private_impl__composite_nonpremul_nonpremul_u32_axxx(d0, s0); + wuffs_base__poke_u16le__no_bounds_check(d + (0 * 2), (uint16_t)(c0 >> 16)); s += 1 * 2; d += 1 * 2; @@ -24986,7 +28515,7 @@ wuffs_private_impl__swizzle_transparent_black_src_over( // -------- -static wuffs_base__pixel_swizzler__func // +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // wuffs_private_impl__pixel_swizzler__prepare__y( wuffs_base__pixel_swizzler* p, wuffs_base__pixel_format dst_pixfmt, @@ -25012,7 +28541,7 @@ wuffs_private_impl__pixel_swizzler__prepare__y( case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: case WUFFS_BASE__PIXEL_FORMAT__RGBX: -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) if (wuffs_base__cpu_arch__have_x86_sse42()) { return wuffs_private_impl__swizzle_xxxx__y__x86_sse42; } @@ -25028,7 +28557,7 @@ wuffs_private_impl__pixel_swizzler__prepare__y( return NULL; } -static wuffs_base__pixel_swizzler__func // +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // wuffs_private_impl__pixel_swizzler__prepare__y_16be( wuffs_base__pixel_swizzler* p, wuffs_base__pixel_format dst_pixfmt, @@ -25071,7 +28600,85 @@ wuffs_private_impl__pixel_swizzler__prepare__y_16be( return NULL; } -static wuffs_base__pixel_swizzler__func // +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // +wuffs_private_impl__pixel_swizzler__prepare__ya_nonpremul( + wuffs_base__pixel_swizzler* p, + wuffs_base__pixel_format dst_pixfmt, + wuffs_base__slice_u8 dst_palette, + wuffs_base__slice_u8 src_palette, + wuffs_base__pixel_blend blend) { + switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__Y: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_y__ya_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_y__ya_nonpremul__src_over; + } + return NULL; + + case WUFFS_BASE__PIXEL_FORMAT__YA_NONPREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_copy_2_2; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_ya_nonpremul__ya_nonpremul__src_over; + } + return NULL; + + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgr_565__ya_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgr_565__ya_nonpremul__src_over; + } + return NULL; + + case WUFFS_BASE__PIXEL_FORMAT__BGR: + case WUFFS_BASE__PIXEL_FORMAT__RGB: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_xxx__ya_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_xxx__ya_nonpremul__src_over; + } + return NULL; + + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgra_nonpremul__ya_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul__ya_nonpremul__src_over; + } + return NULL; + + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgra_premul__ya_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_premul__ya_nonpremul__src_over; + } + return NULL; + + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL_4X16LE: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__ya_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__ya_nonpremul__src_over; + } + return NULL; + } + return NULL; +} + +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // wuffs_private_impl__pixel_swizzler__prepare__indexed__bgra_nonpremul( wuffs_base__pixel_swizzler* p, wuffs_base__pixel_format dst_pixfmt, @@ -25079,6 +28686,26 @@ wuffs_private_impl__pixel_swizzler__prepare__indexed__bgra_nonpremul( wuffs_base__slice_u8 src_palette, wuffs_base__pixel_blend blend) { switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__Y: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + if (wuffs_private_impl__swizzle_squash_align4_y_8888( + dst_palette.ptr, dst_palette.len, src_palette.ptr, + src_palette.len, true) != + (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { + return NULL; + } + return wuffs_private_impl__swizzle_y__index__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + if (wuffs_private_impl__slice_u8__copy_from_slice(dst_palette, + src_palette) != + WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH) { + return NULL; + } + return wuffs_private_impl__swizzle_y__index_bgra_nonpremul__src_over; + } + return NULL; + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: if (wuffs_private_impl__slice_u8__copy_from_slice(dst_palette, src_palette) != @@ -25243,7 +28870,7 @@ wuffs_private_impl__pixel_swizzler__prepare__indexed__bgra_nonpremul( return NULL; } -static wuffs_base__pixel_swizzler__func // +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // wuffs_private_impl__pixel_swizzler__prepare__indexed__bgra_binary( wuffs_base__pixel_swizzler* p, wuffs_base__pixel_format dst_pixfmt, @@ -25251,6 +28878,21 @@ wuffs_private_impl__pixel_swizzler__prepare__indexed__bgra_binary( wuffs_base__slice_u8 src_palette, wuffs_base__pixel_blend blend) { switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__Y: + if (wuffs_private_impl__swizzle_squash_align4_y_8888( + dst_palette.ptr, dst_palette.len, src_palette.ptr, + src_palette.len, false) != + (WUFFS_BASE__PIXEL_FORMAT__INDEXED__PALETTE_BYTE_LENGTH / 4)) { + return NULL; + } + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_y__index__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_y__index_binary_alpha__src_over; + } + return NULL; + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL: case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: @@ -25360,7 +29002,7 @@ wuffs_private_impl__pixel_swizzler__prepare__indexed__bgra_binary( return NULL; } -static wuffs_base__pixel_swizzler__func // +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // wuffs_private_impl__pixel_swizzler__prepare__bgr_565( wuffs_base__pixel_swizzler* p, wuffs_base__pixel_format dst_pixfmt, @@ -25368,6 +29010,9 @@ wuffs_private_impl__pixel_swizzler__prepare__bgr_565( wuffs_base__slice_u8 src_palette, wuffs_base__pixel_blend blend) { switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__Y: + return wuffs_private_impl__swizzle_y__bgr_565; + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: return wuffs_private_impl__swizzle_copy_2_2; @@ -25396,7 +29041,7 @@ wuffs_private_impl__pixel_swizzler__prepare__bgr_565( return NULL; } -static wuffs_base__pixel_swizzler__func // +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // wuffs_private_impl__pixel_swizzler__prepare__bgr( wuffs_base__pixel_swizzler* p, wuffs_base__pixel_format dst_pixfmt, @@ -25404,6 +29049,9 @@ wuffs_private_impl__pixel_swizzler__prepare__bgr( wuffs_base__slice_u8 src_palette, wuffs_base__pixel_blend blend) { switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__Y: + return wuffs_private_impl__swizzle_y__bgr; + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: return wuffs_private_impl__swizzle_bgr_565__bgr; @@ -25414,6 +29062,11 @@ wuffs_private_impl__pixel_swizzler__prepare__bgr( case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: case WUFFS_BASE__PIXEL_FORMAT__BGRX: +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + if (wuffs_base__cpu_arch__have_x86_sse42()) { + return wuffs_private_impl__swizzle_bgrw__bgr__x86_sse42; + } +#endif return wuffs_private_impl__swizzle_bgrw__bgr; case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: @@ -25427,7 +29080,7 @@ wuffs_private_impl__pixel_swizzler__prepare__bgr( case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: case WUFFS_BASE__PIXEL_FORMAT__RGBX: -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) if (wuffs_base__cpu_arch__have_x86_sse42()) { return wuffs_private_impl__swizzle_bgrw__rgb__x86_sse42; } @@ -25437,7 +29090,7 @@ wuffs_private_impl__pixel_swizzler__prepare__bgr( return NULL; } -static wuffs_base__pixel_swizzler__func // +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // wuffs_private_impl__pixel_swizzler__prepare__bgra_nonpremul( wuffs_base__pixel_swizzler* p, wuffs_base__pixel_format dst_pixfmt, @@ -25445,6 +29098,15 @@ wuffs_private_impl__pixel_swizzler__prepare__bgra_nonpremul( wuffs_base__slice_u8 src_palette, wuffs_base__pixel_blend blend) { switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__Y: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_y__bgra_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_y__bgra_nonpremul__src_over; + } + return NULL; + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: switch (blend) { case WUFFS_BASE__PIXEL_BLEND__SRC: @@ -25507,7 +29169,7 @@ wuffs_private_impl__pixel_swizzler__prepare__bgra_nonpremul( case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: switch (blend) { case WUFFS_BASE__PIXEL_BLEND__SRC: -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) if (wuffs_base__cpu_arch__have_x86_sse42()) { return wuffs_private_impl__swizzle_swap_rgbx_bgrx__x86_sse42; } @@ -25535,7 +29197,7 @@ wuffs_private_impl__pixel_swizzler__prepare__bgra_nonpremul( return NULL; } -static wuffs_base__pixel_swizzler__func // +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // wuffs_private_impl__pixel_swizzler__prepare__bgra_nonpremul_4x16le( wuffs_base__pixel_swizzler* p, wuffs_base__pixel_format dst_pixfmt, @@ -25543,6 +29205,15 @@ wuffs_private_impl__pixel_swizzler__prepare__bgra_nonpremul_4x16le( wuffs_base__slice_u8 src_palette, wuffs_base__pixel_blend blend) { switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__Y: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_y__bgra_nonpremul_4x16le__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_y__bgra_nonpremul_4x16le__src_over; + } + return NULL; + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: switch (blend) { case WUFFS_BASE__PIXEL_BLEND__SRC: @@ -25628,7 +29299,7 @@ wuffs_private_impl__pixel_swizzler__prepare__bgra_nonpremul_4x16le( return NULL; } -static wuffs_base__pixel_swizzler__func // +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // wuffs_private_impl__pixel_swizzler__prepare__bgra_premul( wuffs_base__pixel_swizzler* p, wuffs_base__pixel_format dst_pixfmt, @@ -25636,6 +29307,15 @@ wuffs_private_impl__pixel_swizzler__prepare__bgra_premul( wuffs_base__slice_u8 src_palette, wuffs_base__pixel_blend blend) { switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__Y: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_y__bgra_premul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_y__bgra_premul__src_over; + } + return NULL; + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: switch (blend) { case WUFFS_BASE__PIXEL_BLEND__SRC: @@ -25702,7 +29382,7 @@ wuffs_private_impl__pixel_swizzler__prepare__bgra_premul( case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: switch (blend) { case WUFFS_BASE__PIXEL_BLEND__SRC: -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) if (wuffs_base__cpu_arch__have_x86_sse42()) { return wuffs_private_impl__swizzle_swap_rgbx_bgrx__x86_sse42; } @@ -25716,7 +29396,110 @@ wuffs_private_impl__pixel_swizzler__prepare__bgra_premul( return NULL; } -static wuffs_base__pixel_swizzler__func // +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // +wuffs_private_impl__pixel_swizzler__prepare__bgra_binary( + wuffs_base__pixel_swizzler* p, + wuffs_base__pixel_format dst_pixfmt, + wuffs_base__slice_u8 dst_palette, + wuffs_base__slice_u8 src_palette, + wuffs_base__pixel_blend blend) { + switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__Y: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_y__bgra_premul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_y__bgra_premul__src_over; + } + return NULL; + + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgr_565__bgra_premul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgr_565__bgra_premul__src_over; + } + return NULL; + + case WUFFS_BASE__PIXEL_FORMAT__BGR: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgr__bgra_premul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgr__bgra_premul__src_over; + } + return NULL; + + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_copy_4_4; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul__bgra_premul__src_over; + } + return NULL; + + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__bgra_premul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul_4x16le__bgra_premul__src_over; + } + return NULL; + + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_copy_4_4; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_premul__bgra_premul__src_over; + } + return NULL; + + case WUFFS_BASE__PIXEL_FORMAT__RGB: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_bgr__rgba_premul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgr__rgba_premul__src_over; + } + return NULL; + + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + if (wuffs_base__cpu_arch__have_x86_sse42()) { + return wuffs_private_impl__swizzle_swap_rgbx_bgrx__x86_sse42; + } +#endif + return wuffs_private_impl__swizzle_swap_rgbx_bgrx; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_nonpremul__rgba_premul__src_over; + } + return NULL; + + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + if (wuffs_base__cpu_arch__have_x86_sse42()) { + return wuffs_private_impl__swizzle_swap_rgbx_bgrx__x86_sse42; + } +#endif + return wuffs_private_impl__swizzle_swap_rgbx_bgrx; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_bgra_premul__rgba_premul__src_over; + } + return NULL; + } + return NULL; +} + +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // wuffs_private_impl__pixel_swizzler__prepare__bgrx( wuffs_base__pixel_swizzler* p, wuffs_base__pixel_format dst_pixfmt, @@ -25724,6 +29507,9 @@ wuffs_private_impl__pixel_swizzler__prepare__bgrx( wuffs_base__slice_u8 src_palette, wuffs_base__pixel_blend blend) { switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__Y: + return wuffs_private_impl__swizzle_y__bgrx; + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: return wuffs_private_impl__swizzle_bgr_565__bgrx; @@ -25753,7 +29539,7 @@ wuffs_private_impl__pixel_swizzler__prepare__bgrx( return NULL; } -static wuffs_base__pixel_swizzler__func // +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // wuffs_private_impl__pixel_swizzler__prepare__rgb( wuffs_base__pixel_swizzler* p, wuffs_base__pixel_format dst_pixfmt, @@ -25761,6 +29547,9 @@ wuffs_private_impl__pixel_swizzler__prepare__rgb( wuffs_base__slice_u8 src_palette, wuffs_base__pixel_blend blend) { switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__Y: + return wuffs_private_impl__swizzle_y__rgb; + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: return wuffs_private_impl__swizzle_bgr_565__rgb; @@ -25771,7 +29560,7 @@ wuffs_private_impl__pixel_swizzler__prepare__rgb( case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: case WUFFS_BASE__PIXEL_FORMAT__BGRX: -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) if (wuffs_base__cpu_arch__have_x86_sse42()) { return wuffs_private_impl__swizzle_bgrw__rgb__x86_sse42; } @@ -25788,12 +29577,17 @@ wuffs_private_impl__pixel_swizzler__prepare__rgb( case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: case WUFFS_BASE__PIXEL_FORMAT__RGBA_BINARY: case WUFFS_BASE__PIXEL_FORMAT__RGBX: +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + if (wuffs_base__cpu_arch__have_x86_sse42()) { + return wuffs_private_impl__swizzle_bgrw__bgr__x86_sse42; + } +#endif return wuffs_private_impl__swizzle_bgrw__bgr; } return NULL; } -static wuffs_base__pixel_swizzler__func // +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // wuffs_private_impl__pixel_swizzler__prepare__rgba_nonpremul( wuffs_base__pixel_swizzler* p, wuffs_base__pixel_format dst_pixfmt, @@ -25801,6 +29595,15 @@ wuffs_private_impl__pixel_swizzler__prepare__rgba_nonpremul( wuffs_base__slice_u8 src_palette, wuffs_base__pixel_blend blend) { switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__Y: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_y__rgba_nonpremul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_y__rgba_nonpremul__src_over; + } + return NULL; + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: switch (blend) { case WUFFS_BASE__PIXEL_BLEND__SRC: @@ -25822,7 +29625,7 @@ wuffs_private_impl__pixel_swizzler__prepare__rgba_nonpremul( case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: switch (blend) { case WUFFS_BASE__PIXEL_BLEND__SRC: -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) if (wuffs_base__cpu_arch__have_x86_sse42()) { return wuffs_private_impl__swizzle_swap_rgbx_bgrx__x86_sse42; } @@ -25891,7 +29694,7 @@ wuffs_private_impl__pixel_swizzler__prepare__rgba_nonpremul( return NULL; } -static wuffs_base__pixel_swizzler__func // +static inline WUFFS_BASE__FORCE_INLINE wuffs_base__pixel_swizzler__func // wuffs_private_impl__pixel_swizzler__prepare__rgba_premul( wuffs_base__pixel_swizzler* p, wuffs_base__pixel_format dst_pixfmt, @@ -25899,6 +29702,15 @@ wuffs_private_impl__pixel_swizzler__prepare__rgba_premul( wuffs_base__slice_u8 src_palette, wuffs_base__pixel_blend blend) { switch (dst_pixfmt.repr) { + case WUFFS_BASE__PIXEL_FORMAT__Y: + switch (blend) { + case WUFFS_BASE__PIXEL_BLEND__SRC: + return wuffs_private_impl__swizzle_y__rgba_premul__src; + case WUFFS_BASE__PIXEL_BLEND__SRC_OVER: + return wuffs_private_impl__swizzle_y__rgba_premul__src_over; + } + return NULL; + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: switch (blend) { case WUFFS_BASE__PIXEL_BLEND__SRC: @@ -25938,7 +29750,7 @@ wuffs_private_impl__pixel_swizzler__prepare__rgba_premul( case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: switch (blend) { case WUFFS_BASE__PIXEL_BLEND__SRC: -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) if (wuffs_base__cpu_arch__have_x86_sse42()) { return wuffs_private_impl__swizzle_swap_rgbx_bgrx__x86_sse42; } @@ -25996,6 +29808,54 @@ wuffs_base__pixel_swizzler__prepare(wuffs_base__pixel_swizzler* p, p->private_impl.dst_pixfmt_bytes_per_pixel = 0; p->private_impl.src_pixfmt_bytes_per_pixel = 0; + // ---- + +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ENABLE_ALLOWLIST) + switch (dst_pixfmt.repr) { +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_Y) + case WUFFS_BASE__PIXEL_FORMAT__Y: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_BGR_565) + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_BGR) + case WUFFS_BASE__PIXEL_FORMAT__BGR: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_BGRA_NONPREMUL) + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_BGRA_NONPREMUL_4X16LE) + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_BGRA_PREMUL) + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_RGB) + case WUFFS_BASE__PIXEL_FORMAT__RGB: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_RGBA_NONPREMUL) + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_RGBA_PREMUL) + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + break; +#endif + default: + return wuffs_base__make_status( + wuffs_base__error__disabled_by_wuffs_config_dst_pixel_format_enable_allowlist); + } +#endif // defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ENABLE_ALLOWLIST) + + // ---- + wuffs_base__pixel_swizzler__func func = NULL; wuffs_base__pixel_swizzler__transparent_black_func transparent_black_func = NULL; @@ -26041,6 +29901,11 @@ wuffs_base__pixel_swizzler__prepare(wuffs_base__pixel_swizzler* p, p, dst_pixfmt, dst_palette, src_palette, blend); break; + case WUFFS_BASE__PIXEL_FORMAT__YA_NONPREMUL: + func = wuffs_private_impl__pixel_swizzler__prepare__ya_nonpremul( + p, dst_pixfmt, dst_palette, src_palette, blend); + break; + case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: func = wuffs_private_impl__pixel_swizzler__prepare__indexed__bgra_nonpremul( @@ -26077,6 +29942,11 @@ wuffs_base__pixel_swizzler__prepare(wuffs_base__pixel_swizzler* p, p, dst_pixfmt, dst_palette, src_palette, blend); break; + case WUFFS_BASE__PIXEL_FORMAT__BGRA_BINARY: + func = wuffs_private_impl__pixel_swizzler__prepare__bgra_binary( + p, dst_pixfmt, dst_palette, src_palette, blend); + break; + case WUFFS_BASE__PIXEL_FORMAT__BGRX: func = wuffs_private_impl__pixel_swizzler__prepare__bgrx( p, dst_pixfmt, dst_palette, src_palette, blend); @@ -26177,7 +30047,7 @@ wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black( // -------- -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2,avx2") static void // wuffs_private_impl__swizzle_ycc__convert_3_bgrx_x86_avx2( @@ -26214,7 +30084,7 @@ wuffs_private_impl__swizzle_ycc__upsample_inv_h2v2_triangle_x86_avx2( bool first_column, bool last_column); #endif -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_64) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) // -------- @@ -26792,8 +30662,10 @@ wuffs_private_impl__swizzle_ycck__general__triangle_filter_edge_row( static void // wuffs_private_impl__swizzle_ycck__general__triangle_filter( wuffs_base__pixel_buffer* dst, - uint32_t width, - uint32_t height, + uint32_t x_min_incl, + uint32_t x_max_excl, + uint32_t y_min_incl, + uint32_t y_max_excl, const uint8_t* src_ptr0, const uint8_t* src_ptr1, const uint8_t* src_ptr2, @@ -26815,6 +30687,10 @@ wuffs_private_impl__swizzle_ycck__general__triangle_filter( uint8_t* scratch_buffer_2k_ptr, wuffs_private_impl__swizzle_ycc__upsample_func (*upfuncs)[4][4], wuffs_private_impl__swizzle_ycc__convert_4_func conv4func) { + if ((x_min_incl != 0) || (y_min_incl != 0)) { + return; + } + wuffs_private_impl__swizzle_ycc__upsample_func upfunc0 = (*upfuncs)[(inv_h0 - 1u) & 3u][(inv_v0 - 1u) & 3u]; wuffs_private_impl__swizzle_ycc__upsample_func upfunc1 = @@ -26827,7 +30703,7 @@ wuffs_private_impl__swizzle_ycck__general__triangle_filter( // First row. uint32_t h1v2_bias = 1u; wuffs_private_impl__swizzle_ycck__general__triangle_filter_edge_row( - dst, width, 0u, // + dst, x_max_excl, 0u, // src_ptr0, src_ptr1, src_ptr2, src_ptr3, // stride0, stride1, stride2, stride3, // inv_h0, inv_h1, inv_h2, inv_h3, // @@ -26839,10 +30715,10 @@ wuffs_private_impl__swizzle_ycck__general__triangle_filter( h1v2_bias = 2u; // Middle rows. - bool last_row = height == 2u * half_height_for_2to1; - uint32_t y_max_excl = last_row ? (height - 1u) : height; + bool last_row = y_max_excl == 2u * half_height_for_2to1; + uint32_t middle_y_max_excl = last_row ? (y_max_excl - 1u) : y_max_excl; uint32_t y; - for (y = 1u; y < y_max_excl; y++) { + for (y = 1u; y < middle_y_max_excl; y++) { const uint8_t* src0_major = src_ptr0 + ((y / inv_v0) * (size_t)stride0); const uint8_t* src0_minor = (inv_v0 != 2u) @@ -26869,11 +30745,11 @@ wuffs_private_impl__swizzle_ycck__general__triangle_filter( uint32_t total_src_len3 = 0u; uint32_t x = 0u; - while (x < width) { + while (x < x_max_excl) { bool first_column = x == 0u; uint32_t end = x + 480u; - if (end > width) { - end = width; + if (end > x_max_excl) { + end = x_max_excl; } uint32_t src_len0 = ((end - x) + inv_h0 - 1u) / inv_h0; @@ -26929,9 +30805,9 @@ wuffs_private_impl__swizzle_ycck__general__triangle_filter( } // Last row. - if (y_max_excl != height) { + if (middle_y_max_excl != y_max_excl) { wuffs_private_impl__swizzle_ycck__general__triangle_filter_edge_row( - dst, width, height - 1u, // + dst, x_max_excl, middle_y_max_excl, // src_ptr0, src_ptr1, src_ptr2, src_ptr3, // stride0, stride1, stride2, stride3, // inv_h0, inv_h1, inv_h2, inv_h3, // @@ -27027,8 +30903,10 @@ wuffs_private_impl__swizzle_ycc__general__triangle_filter_edge_row( static void // wuffs_private_impl__swizzle_ycc__general__triangle_filter( wuffs_base__pixel_buffer* dst, - uint32_t width, - uint32_t height, + uint32_t x_min_incl, + uint32_t x_max_excl, + uint32_t y_min_incl, + uint32_t y_max_excl, const uint8_t* src_ptr0, const uint8_t* src_ptr1, const uint8_t* src_ptr2, @@ -27046,6 +30924,10 @@ wuffs_private_impl__swizzle_ycc__general__triangle_filter( uint8_t* scratch_buffer_2k_ptr, wuffs_private_impl__swizzle_ycc__upsample_func (*upfuncs)[4][4], wuffs_private_impl__swizzle_ycc__convert_3_func conv3func) { + if ((x_min_incl != 0) || (y_min_incl != 0)) { + return; + } + wuffs_private_impl__swizzle_ycc__upsample_func upfunc0 = (*upfuncs)[(inv_h0 - 1u) & 3u][(inv_v0 - 1u) & 3u]; wuffs_private_impl__swizzle_ycc__upsample_func upfunc1 = @@ -27056,7 +30938,7 @@ wuffs_private_impl__swizzle_ycc__general__triangle_filter( // First row. uint32_t h1v2_bias = 1u; wuffs_private_impl__swizzle_ycc__general__triangle_filter_edge_row( - dst, width, 0u, // + dst, x_max_excl, 0u, // src_ptr0, src_ptr1, src_ptr2, // stride0, stride1, stride2, // inv_h0, inv_h1, inv_h2, // @@ -27068,10 +30950,10 @@ wuffs_private_impl__swizzle_ycc__general__triangle_filter( h1v2_bias = 2u; // Middle rows. - bool last_row = height == 2u * half_height_for_2to1; - uint32_t y_max_excl = last_row ? (height - 1u) : height; + bool last_row = y_max_excl == 2u * half_height_for_2to1; + uint32_t middle_y_max_excl = last_row ? (y_max_excl - 1u) : y_max_excl; uint32_t y; - for (y = 1u; y < y_max_excl; y++) { + for (y = 1u; y < middle_y_max_excl; y++) { const uint8_t* src0_major = src_ptr0 + ((y / inv_v0) * (size_t)stride0); const uint8_t* src0_minor = (inv_v0 != 2u) @@ -27092,11 +30974,11 @@ wuffs_private_impl__swizzle_ycc__general__triangle_filter( uint32_t total_src_len2 = 0u; uint32_t x = 0u; - while (x < width) { + while (x < x_max_excl) { bool first_column = x == 0u; uint32_t end = x + 672u; - if (end > width) { - end = width; + if (end > x_max_excl) { + end = x_max_excl; } uint32_t src_len0 = ((end - x) + inv_h0 - 1u) / inv_h0; @@ -27141,16 +31023,16 @@ wuffs_private_impl__swizzle_ycc__general__triangle_filter( } // Last row. - if (y_max_excl != height) { + if (middle_y_max_excl != y_max_excl) { wuffs_private_impl__swizzle_ycc__general__triangle_filter_edge_row( - dst, width, height - 1u, // - src_ptr0, src_ptr1, src_ptr2, // - stride0, stride1, stride2, // - inv_h0, inv_h1, inv_h2, // - inv_v0, inv_v1, inv_v2, // - half_width_for_2to1, // - h1v2_bias, // - scratch_buffer_2k_ptr, // + dst, x_max_excl, middle_y_max_excl, // + src_ptr0, src_ptr1, src_ptr2, // + stride0, stride1, stride2, // + inv_h0, inv_h1, inv_h2, // + inv_v0, inv_v1, inv_v2, // + half_width_for_2to1, // + h1v2_bias, // + scratch_buffer_2k_ptr, // upfunc0, upfunc1, upfunc2, conv3func); } } @@ -27158,8 +31040,10 @@ wuffs_private_impl__swizzle_ycc__general__triangle_filter( static void // wuffs_private_impl__swizzle_ycc__general__box_filter( wuffs_base__pixel_buffer* dst, - uint32_t width, - uint32_t height, + uint32_t x_min_incl, + uint32_t x_max_excl, + uint32_t y_min_incl, + uint32_t y_max_excl, const uint8_t* src_ptr0, const uint8_t* src_ptr1, const uint8_t* src_ptr2, @@ -27185,41 +31069,44 @@ wuffs_private_impl__swizzle_ycc__general__box_filter( (*upfuncs)[(inv_h2 - 1u) & 3u][(inv_v2 - 1u) & 3u]; uint32_t y; - for (y = 0u; y < height; y++) { - const uint8_t* src0_major = src_ptr0 + ((y / inv_v0) * (size_t)stride0); - const uint8_t* src1_major = src_ptr1 + ((y / inv_v1) * (size_t)stride1); - const uint8_t* src2_major = src_ptr2 + ((y / inv_v2) * (size_t)stride2); - - uint32_t x = 0u; - while (x < width) { + for (y = y_min_incl; y < y_max_excl; y++) { + const uint8_t* src0_major = + src_ptr0 + (((y - y_min_incl) / inv_v0) * (size_t)stride0); + const uint8_t* src1_major = + src_ptr1 + (((y - y_min_incl) / inv_v1) * (size_t)stride1); + const uint8_t* src2_major = + src_ptr2 + (((y - y_min_incl) / inv_v2) * (size_t)stride2); + + uint32_t x = x_min_incl; + while (x < x_max_excl) { uint32_t end = x + 672u; - if (end > width) { - end = width; + if (end > x_max_excl) { + end = x_max_excl; } uint32_t src_len0 = ((end - x) + inv_h0 - 1u) / inv_h0; uint32_t src_len1 = ((end - x) + inv_h1 - 1u) / inv_h1; uint32_t src_len2 = ((end - x) + inv_h2 - 1u) / inv_h2; - const uint8_t* up0 = (*upfunc0)( // - scratch_buffer_2k_ptr + (0u * 672u), // - src0_major + (x / inv_h0), // - src0_major + (x / inv_h0), // - src_len0, // + const uint8_t* up0 = (*upfunc0)( // + scratch_buffer_2k_ptr + (0u * 672u), // + src0_major + ((x - x_min_incl) / inv_h0), // + src0_major + ((x - x_min_incl) / inv_h0), // + src_len0, // 0u, false, false); - const uint8_t* up1 = (*upfunc1)( // - scratch_buffer_2k_ptr + (1u * 672u), // - src1_major + (x / inv_h1), // - src1_major + (x / inv_h1), // - src_len1, // + const uint8_t* up1 = (*upfunc1)( // + scratch_buffer_2k_ptr + (1u * 672u), // + src1_major + ((x - x_min_incl) / inv_h1), // + src1_major + ((x - x_min_incl) / inv_h1), // + src_len1, // 0u, false, false); - const uint8_t* up2 = (*upfunc2)( // - scratch_buffer_2k_ptr + (2u * 672u), // - src2_major + (x / inv_h2), // - src2_major + (x / inv_h2), // - src_len2, // + const uint8_t* up2 = (*upfunc2)( // + scratch_buffer_2k_ptr + (2u * 672u), // + src2_major + ((x - x_min_incl) / inv_h2), // + src2_major + ((x - x_min_incl) / inv_h2), // + src_len2, // 0u, false, false); (*conv3func)(dst, x, end, y, up0, up1, up2); @@ -27228,6 +31115,100 @@ wuffs_private_impl__swizzle_ycc__general__box_filter( } } +static void // +wuffs_private_impl__swizzle_ycck__general__box_filter( + wuffs_base__pixel_buffer* dst, + uint32_t x_min_incl, + uint32_t x_max_excl, + uint32_t y_min_incl, + uint32_t y_max_excl, + const uint8_t* src_ptr0, + const uint8_t* src_ptr1, + const uint8_t* src_ptr2, + const uint8_t* src_ptr3, + uint32_t stride0, + uint32_t stride1, + uint32_t stride2, + uint32_t stride3, + uint32_t inv_h0, + uint32_t inv_h1, + uint32_t inv_h2, + uint32_t inv_h3, + uint32_t inv_v0, + uint32_t inv_v1, + uint32_t inv_v2, + uint32_t inv_v3, + uint32_t half_width_for_2to1, + uint32_t half_height_for_2to1, + uint8_t* scratch_buffer_2k_ptr, + wuffs_private_impl__swizzle_ycc__upsample_func (*upfuncs)[4][4], + wuffs_private_impl__swizzle_ycc__convert_4_func conv4func) { + wuffs_private_impl__swizzle_ycc__upsample_func upfunc0 = + (*upfuncs)[(inv_h0 - 1u) & 3u][(inv_v0 - 1u) & 3u]; + wuffs_private_impl__swizzle_ycc__upsample_func upfunc1 = + (*upfuncs)[(inv_h1 - 1u) & 3u][(inv_v1 - 1u) & 3u]; + wuffs_private_impl__swizzle_ycc__upsample_func upfunc2 = + (*upfuncs)[(inv_h2 - 1u) & 3u][(inv_v2 - 1u) & 3u]; + wuffs_private_impl__swizzle_ycc__upsample_func upfunc3 = + (*upfuncs)[(inv_h3 - 1u) & 3u][(inv_v3 - 1u) & 3u]; + + uint32_t y; + for (y = y_min_incl; y < y_max_excl; y++) { + const uint8_t* src0_major = + src_ptr0 + (((y - y_min_incl) / inv_v0) * (size_t)stride0); + const uint8_t* src1_major = + src_ptr1 + (((y - y_min_incl) / inv_v1) * (size_t)stride1); + const uint8_t* src2_major = + src_ptr2 + (((y - y_min_incl) / inv_v2) * (size_t)stride2); + const uint8_t* src3_major = + src_ptr3 + (((y - y_min_incl) / inv_v3) * (size_t)stride3); + + uint32_t x = x_min_incl; + while (x < x_max_excl) { + uint32_t end = x + 480u; + if (end > x_max_excl) { + end = x_max_excl; + } + + uint32_t src_len0 = ((end - x) + inv_h0 - 1u) / inv_h0; + uint32_t src_len1 = ((end - x) + inv_h1 - 1u) / inv_h1; + uint32_t src_len2 = ((end - x) + inv_h2 - 1u) / inv_h2; + uint32_t src_len3 = ((end - x) + inv_h3 - 1u) / inv_h3; + + const uint8_t* up0 = (*upfunc0)( // + scratch_buffer_2k_ptr + (0u * 480u), // + src0_major + ((x - x_min_incl) / inv_h0), // + src0_major + ((x - x_min_incl) / inv_h0), // + src_len0, // + 0u, false, false); + + const uint8_t* up1 = (*upfunc1)( // + scratch_buffer_2k_ptr + (1u * 480u), // + src1_major + ((x - x_min_incl) / inv_h1), // + src1_major + ((x - x_min_incl) / inv_h1), // + src_len1, // + 0u, false, false); + + const uint8_t* up2 = (*upfunc2)( // + scratch_buffer_2k_ptr + (2u * 480u), // + src2_major + ((x - x_min_incl) / inv_h2), // + src2_major + ((x - x_min_incl) / inv_h2), // + src_len2, // + 0u, false, false); + + const uint8_t* up3 = (*upfunc3)( // + scratch_buffer_2k_ptr + (3u * 480u), // + src3_major + ((x - x_min_incl) / inv_h3), // + src3_major + ((x - x_min_incl) / inv_h3), // + src_len3, // + 0u, false, false); + + (*conv4func)(dst, x, end, y, up0, up1, up2, up3); + x = end; + } + } +} + // -------- // wuffs_private_impl__swizzle_flattened_length is like @@ -27252,8 +31233,10 @@ wuffs_base__pixel_swizzler__swizzle_ycck( const wuffs_base__pixel_swizzler* p, wuffs_base__pixel_buffer* dst, wuffs_base__slice_u8 dst_palette, - uint32_t width, - uint32_t height, + uint32_t x_min_incl, + uint32_t x_max_excl, + uint32_t y_min_incl, + uint32_t y_max_excl, wuffs_base__slice_u8 src0, wuffs_base__slice_u8 src1, wuffs_base__slice_u8 src2, @@ -27283,13 +31266,18 @@ wuffs_base__pixel_swizzler__swizzle_ycck( wuffs_base__slice_u8 scratch_buffer_2k) { if (!p) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } else if (!dst || (width > 0xFFFFu) || (height > 0xFFFFu) || // - (4u <= ((unsigned int)h0 - 1u)) || // - (4u <= ((unsigned int)h1 - 1u)) || // - (4u <= ((unsigned int)h2 - 1u)) || // - (4u <= ((unsigned int)v0 - 1u)) || // - (4u <= ((unsigned int)v1 - 1u)) || // - (4u <= ((unsigned int)v2 - 1u)) || // + } else if (!dst || // + (x_min_incl > x_max_excl) || // + (x_max_excl > 0xFFFFu) || // + (y_min_incl > y_max_excl) || // + (y_max_excl > 0xFFFFu) || // + (4u <= ((unsigned int)h0 - 1u)) || // + (4u <= ((unsigned int)h1 - 1u)) || // + (4u <= ((unsigned int)h2 - 1u)) || // + (4u <= ((unsigned int)v0 - 1u)) || // + (4u <= ((unsigned int)v1 - 1u)) || // + (4u <= ((unsigned int)v2 - 1u)) || // + (triangle_filter_for_2to1 && ((x_min_incl | y_min_incl) > 0u)) || (scratch_buffer_2k.len < 2048u)) { return wuffs_base__make_status(wuffs_base__error__bad_argument); } @@ -27316,21 +31304,69 @@ wuffs_base__pixel_swizzler__swizzle_ycck( uint32_t inv_v2 = max_incl_v / v2; uint32_t inv_v3 = v3 ? (max_incl_v / v3) : 0u; - uint32_t half_width_for_2to1 = (width + 1u) / 2u; - uint32_t half_height_for_2to1 = (height + 1u) / 2u; - - width = wuffs_private_impl__u32__min_of_5( // - width, // - width0 * inv_h0, // - width1 * inv_h1, // - width2 * inv_h2, // - wuffs_base__pixel_config__width(&dst->pixcfg)); - height = wuffs_private_impl__u32__min_of_5( // - height, // - height0 * inv_v0, // - height1 * inv_v1, // - height2 * inv_v2, // - wuffs_base__pixel_config__height(&dst->pixcfg)); + if (x_min_incl != 0) { + if ((x_min_incl % inv_h0) || (x_min_incl % inv_h1) || + (x_min_incl % inv_h2) || (inv_h3 && (x_min_incl % inv_h3))) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + } + if (y_min_incl != 0) { + if ((y_min_incl % inv_v0) || (y_min_incl % inv_v1) || + (y_min_incl % inv_v2) || (inv_v3 && (y_min_incl % inv_v3))) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + } + + uint32_t half_width_for_2to1 = ((x_max_excl - x_min_incl) + 1u) / 2u; + if (inv_h0 == 2) { + half_width_for_2to1 = wuffs_base__u32__min(half_width_for_2to1, width0); + } + if (inv_h1 == 2) { + half_width_for_2to1 = wuffs_base__u32__min(half_width_for_2to1, width1); + } + if (inv_h2 == 2) { + half_width_for_2to1 = wuffs_base__u32__min(half_width_for_2to1, width2); + } + if (inv_h3 == 2) { + half_width_for_2to1 = wuffs_base__u32__min(half_width_for_2to1, width3); + } + + uint32_t half_height_for_2to1 = ((y_max_excl - y_min_incl) + 1u) / 2u; + if (inv_v0 == 2) { + half_height_for_2to1 = wuffs_base__u32__min(half_height_for_2to1, height0); + } + if (inv_v1 == 2) { + half_height_for_2to1 = wuffs_base__u32__min(half_height_for_2to1, height1); + } + if (inv_v2 == 2) { + half_height_for_2to1 = wuffs_base__u32__min(half_height_for_2to1, height2); + } + if (inv_v3 == 2) { + half_height_for_2to1 = wuffs_base__u32__min(half_height_for_2to1, height3); + } + + x_max_excl = wuffs_base__u32__min( // + wuffs_base__pixel_config__width(&dst->pixcfg), // + x_min_incl + wuffs_private_impl__u32__min_of_5( // + x_max_excl - x_min_incl, // + width0 * inv_h0, // + width1 * inv_h1, // + width2 * inv_h2, // + inv_h3 ? (width3 * inv_h3) : 0xFFFFFFFF)); + y_max_excl = wuffs_base__u32__min( // + wuffs_base__pixel_config__height(&dst->pixcfg), // + y_min_incl + wuffs_private_impl__u32__min_of_5( // + y_max_excl - y_min_incl, // + height0 * inv_v0, // + height1 * inv_v1, // + height2 * inv_v2, // + inv_v3 ? (height3 * inv_v3) : 0xFFFFFFFF)); + + if ((x_min_incl >= x_max_excl) || (y_min_incl >= y_max_excl)) { + return wuffs_base__make_status(NULL); + } + uint32_t width = x_max_excl - x_min_incl; + uint32_t height = y_max_excl - y_min_incl; if (((h0 * inv_h0) != max_incl_h) || // ((h1 * inv_h1) != max_incl_h) || // @@ -27361,10 +31397,56 @@ wuffs_base__pixel_swizzler__swizzle_ycck( wuffs_base__error__unsupported_pixel_swizzler_option); } + // ---- + +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ENABLE_ALLOWLIST) + switch (dst->pixcfg.private_impl.pixfmt.repr) { +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_Y) + case WUFFS_BASE__PIXEL_FORMAT__Y: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_BGR_565) + case WUFFS_BASE__PIXEL_FORMAT__BGR_565: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_BGR) + case WUFFS_BASE__PIXEL_FORMAT__BGR: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_BGRA_NONPREMUL) + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_BGRA_NONPREMUL_4X16LE) + case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_BGRA_PREMUL) + case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_RGB) + case WUFFS_BASE__PIXEL_FORMAT__RGB: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_RGBA_NONPREMUL) + case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: + break; +#endif +#if defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ALLOW_RGBA_PREMUL) + case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: + break; +#endif + default: + return wuffs_base__make_status( + wuffs_base__error__disabled_by_wuffs_config_dst_pixel_format_enable_allowlist); + } +#else // defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ENABLE_ALLOWLIST) switch (dst->pixcfg.private_impl.pixfmt.repr) { case WUFFS_BASE__PIXEL_FORMAT__Y: case WUFFS_BASE__PIXEL_FORMAT__Y_16LE: case WUFFS_BASE__PIXEL_FORMAT__Y_16BE: + case WUFFS_BASE__PIXEL_FORMAT__YA_NONPREMUL: case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_NONPREMUL: case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_PREMUL: case WUFFS_BASE__PIXEL_FORMAT__INDEXED__BGRA_BINARY: @@ -27385,10 +31467,9 @@ wuffs_base__pixel_swizzler__swizzle_ycck( return wuffs_base__make_status( wuffs_base__error__unsupported_pixel_swizzler_option); } +#endif // defined(WUFFS_CONFIG__DST_PIXEL_FORMAT__ENABLE_ALLOWLIST) - if ((width <= 0u) || (height <= 0u)) { - return wuffs_base__make_status(NULL); - } + // ---- wuffs_private_impl__swizzle_ycc__convert_3_func conv3func = NULL; @@ -27399,7 +31480,7 @@ wuffs_base__pixel_swizzler__swizzle_ycck( case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: case WUFFS_BASE__PIXEL_FORMAT__BGRA_PREMUL: case WUFFS_BASE__PIXEL_FORMAT__BGRX: -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) if (wuffs_base__cpu_arch__have_x86_avx2()) { conv3func = &wuffs_private_impl__swizzle_ycc__convert_3_bgrx_x86_avx2; break; @@ -27410,7 +31491,7 @@ wuffs_base__pixel_swizzler__swizzle_ycck( case WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL: case WUFFS_BASE__PIXEL_FORMAT__RGBA_PREMUL: case WUFFS_BASE__PIXEL_FORMAT__RGBX: -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) if (wuffs_base__cpu_arch__have_x86_avx2()) { conv3func = &wuffs_private_impl__swizzle_ycc__convert_3_rgbx_x86_avx2; break; @@ -27424,28 +31505,58 @@ wuffs_base__pixel_swizzler__swizzle_ycck( } } - void (*func)(wuffs_base__pixel_buffer * dst, // - uint32_t width, // - uint32_t height, // - const uint8_t* src_ptr0, // - const uint8_t* src_ptr1, // - const uint8_t* src_ptr2, // - uint32_t stride0, // - uint32_t stride1, // - uint32_t stride2, // - uint32_t inv_h0, // - uint32_t inv_h1, // - uint32_t inv_h2, // - uint32_t inv_v0, // - uint32_t inv_v1, // - uint32_t inv_v2, // - uint32_t half_width_for_2to1, // - uint32_t half_height_for_2to1, // - uint8_t* scratch_buffer_2k_ptr, // - wuffs_private_impl__swizzle_ycc__upsample_func(*upfuncs)[4][4], - wuffs_private_impl__swizzle_ycc__convert_3_func conv3func) = + void (*func3)(wuffs_base__pixel_buffer * dst, // + uint32_t x_min_incl, // + uint32_t x_max_excl, // + uint32_t y_min_incl, // + uint32_t y_max_excl, // + const uint8_t* src_ptr0, // + const uint8_t* src_ptr1, // + const uint8_t* src_ptr2, // + uint32_t stride0, // + uint32_t stride1, // + uint32_t stride2, // + uint32_t inv_h0, // + uint32_t inv_h1, // + uint32_t inv_h2, // + uint32_t inv_v0, // + uint32_t inv_v1, // + uint32_t inv_v2, // + uint32_t half_width_for_2to1, // + uint32_t half_height_for_2to1, // + uint8_t* scratch_buffer_2k_ptr, // + wuffs_private_impl__swizzle_ycc__upsample_func(*upfuncs)[4][4], + wuffs_private_impl__swizzle_ycc__convert_3_func conv3func) = &wuffs_private_impl__swizzle_ycc__general__box_filter; + void (*func4)(wuffs_base__pixel_buffer * dst, // + uint32_t x_min_incl, // + uint32_t x_max_excl, // + uint32_t y_min_incl, // + uint32_t y_max_excl, // + const uint8_t* src_ptr0, // + const uint8_t* src_ptr1, // + const uint8_t* src_ptr2, // + const uint8_t* src_ptr3, // + uint32_t stride0, // + uint32_t stride1, // + uint32_t stride2, // + uint32_t stride3, // + uint32_t inv_h0, // + uint32_t inv_h1, // + uint32_t inv_h2, // + uint32_t inv_h3, // + uint32_t inv_v0, // + uint32_t inv_v1, // + uint32_t inv_v2, // + uint32_t inv_v3, // + uint32_t half_width_for_2to1, // + uint32_t half_height_for_2to1, // + uint8_t* scratch_buffer_2k_ptr, // + wuffs_private_impl__swizzle_ycc__upsample_func(*upfuncs)[4][4], + wuffs_private_impl__swizzle_ycc__convert_4_func conv4func) = + &wuffs_private_impl__swizzle_ycck__general__box_filter; + wuffs_private_impl__swizzle_ycc__upsample_func upfuncs[4][4]; memcpy(&upfuncs, &wuffs_private_impl__swizzle_ycc__upsample_funcs, sizeof upfuncs); @@ -27453,14 +31564,16 @@ wuffs_base__pixel_swizzler__swizzle_ycck( if (triangle_filter_for_2to1 && (wuffs_private_impl__swizzle_has_triangle_upsampler(inv_h0, inv_v0) || wuffs_private_impl__swizzle_has_triangle_upsampler(inv_h1, inv_v1) || - wuffs_private_impl__swizzle_has_triangle_upsampler(inv_h2, inv_v2))) { - func = &wuffs_private_impl__swizzle_ycc__general__triangle_filter; + wuffs_private_impl__swizzle_has_triangle_upsampler(inv_h2, inv_v2) || + wuffs_private_impl__swizzle_has_triangle_upsampler(inv_h3, inv_v3))) { + func3 = &wuffs_private_impl__swizzle_ycc__general__triangle_filter; + func4 = &wuffs_private_impl__swizzle_ycck__general__triangle_filter; upfuncs[0][1] = wuffs_private_impl__swizzle_ycc__upsample_inv_h1v2_triangle; upfuncs[1][0] = wuffs_private_impl__swizzle_ycc__upsample_inv_h2v1_triangle; upfuncs[1][1] = wuffs_private_impl__swizzle_ycc__upsample_inv_h2v2_triangle; -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) #if defined(__GNUC__) && !defined(__clang__) // Don't use our AVX2 implementation for GCC (but do use it for clang). For // some unknown reason, GCC performs noticably better on the non-SIMD @@ -27486,23 +31599,23 @@ wuffs_base__pixel_swizzler__swizzle_ycck( wuffs_private_impl__swizzle_ycc__convert_4_func conv4func = is_rgb_or_cmyk ? &wuffs_private_impl__swizzle_cmyk__convert_4_general : &wuffs_private_impl__swizzle_ycck__convert_4_general; - wuffs_private_impl__swizzle_ycck__general__triangle_filter( // - dst, width, height, // - src0.ptr, src1.ptr, src2.ptr, src3.ptr, // - stride0, stride1, stride2, stride3, // - inv_h0, inv_h1, inv_h2, inv_h3, // - inv_v0, inv_v1, inv_v2, inv_v3, // - half_width_for_2to1, half_height_for_2to1, // + (*func4)( // + dst, x_min_incl, x_max_excl, y_min_incl, y_max_excl, // + src0.ptr, src1.ptr, src2.ptr, src3.ptr, // + stride0, stride1, stride2, stride3, // + inv_h0, inv_h1, inv_h2, inv_h3, // + inv_v0, inv_v1, inv_v2, inv_v3, // + half_width_for_2to1, half_height_for_2to1, // scratch_buffer_2k.ptr, &upfuncs, conv4func); } else { - (*func)( // - dst, width, height, // - src0.ptr, src1.ptr, src2.ptr, // - stride0, stride1, stride2, // - inv_h0, inv_h1, inv_h2, // - inv_v0, inv_v1, inv_v2, // - half_width_for_2to1, half_height_for_2to1, // + (*func3)( // + dst, x_min_incl, x_max_excl, y_min_incl, y_max_excl, // + src0.ptr, src1.ptr, src2.ptr, // + stride0, stride1, stride2, // + inv_h0, inv_h1, inv_h2, // + inv_v0, inv_v1, inv_v2, // + half_width_for_2to1, half_height_for_2to1, // scratch_buffer_2k.ptr, &upfuncs, conv3func); } @@ -27512,7 +31625,7 @@ wuffs_base__pixel_swizzler__swizzle_ycck( // -------- // ‼ WUFFS MULTI-FILE SECTION +x86_avx2 -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2,avx2") static void // wuffs_private_impl__swizzle_ycc__convert_3_bgrx_x86_avx2( @@ -28137,7 +32250,7 @@ wuffs_private_impl__swizzle_ycc__upsample_inv_h2v2_triangle_x86_avx2( return dst_ptr; } #endif -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_64) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) // ‼ WUFFS MULTI-FILE SECTION -x86_avx2 #endif // !defined(WUFFS_CONFIG__MODULES) || @@ -28391,21 +32504,21 @@ wuffs_adler32__hasher__up__choosy_default( wuffs_adler32__hasher* self, wuffs_base__slice_u8 a_x); -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct wuffs_adler32__hasher__up_arm_neon( wuffs_adler32__hasher* self, wuffs_base__slice_u8 a_x); -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct wuffs_adler32__hasher__up_x86_sse42( wuffs_adler32__hasher* self, wuffs_base__slice_u8 a_x); -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) // ---------------- VTables @@ -28477,7 +32590,7 @@ wuffs_adler32__hasher__initialize( wuffs_adler32__hasher* wuffs_adler32__hasher__alloc(void) { wuffs_adler32__hasher* x = - (wuffs_adler32__hasher*)(calloc(sizeof(wuffs_adler32__hasher), 1)); + (wuffs_adler32__hasher*)(calloc(1, sizeof(wuffs_adler32__hasher))); if (!x) { return NULL; } @@ -28553,10 +32666,10 @@ wuffs_adler32__hasher__update( self->private_impl.f_started = true; self->private_impl.f_state = 1u; self->private_impl.choosy_up = ( -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) wuffs_base__cpu_arch__have_arm_neon() ? &wuffs_adler32__hasher__up_arm_neon : #endif -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_adler32__hasher__up_x86_sse42 : #endif self->private_impl.choosy_up); @@ -28615,7 +32728,7 @@ wuffs_adler32__hasher__up__choosy_default( wuffs_base__slice_u8 i_slice_p = a_x; v_p.ptr = i_slice_p.ptr; v_p.len = 1; - uint8_t* i_end0_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 8) * 8); + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 8) * 8)); while (v_p.ptr < i_end0_p) { v_s1 += ((uint32_t)(v_p.ptr[0u])); v_s2 += v_s1; @@ -28643,7 +32756,7 @@ wuffs_adler32__hasher__up__choosy_default( v_p.ptr += 1; } v_p.len = 1; - uint8_t* i_end1_p = i_slice_p.ptr + i_slice_p.len; + const uint8_t* i_end1_p = wuffs_private_impl__ptr_u8_plus_len(i_slice_p.ptr, i_slice_p.len); while (v_p.ptr < i_end1_p) { v_s1 += ((uint32_t)(v_p.ptr[0u])); v_s2 += v_s1; @@ -28679,7 +32792,7 @@ wuffs_adler32__hasher__checksum_u32( // ‼ WUFFS MULTI-FILE SECTION +arm_neon // -------- func adler32.hasher.up_arm_neon -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct wuffs_adler32__hasher__up_arm_neon( @@ -28730,7 +32843,7 @@ wuffs_adler32__hasher__up_arm_neon( wuffs_base__slice_u8 i_slice_p = a_x; v_p.ptr = i_slice_p.ptr; v_p.len = 32; - uint8_t* i_end0_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 32) * 32); + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 32) * 32)); while (v_p.ptr < i_end0_p) { v_p__left = vld1q_u8(v_p.ptr); v_p_right = vld1q_u8(v_p.ptr + 16u); @@ -28764,7 +32877,7 @@ wuffs_adler32__hasher__up_arm_neon( wuffs_base__slice_u8 i_slice_p = wuffs_base__slice_u8__subslice_i(a_x, v_tail_index); v_p.ptr = i_slice_p.ptr; v_p.len = 1; - uint8_t* i_end0_p = i_slice_p.ptr + i_slice_p.len; + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(i_slice_p.ptr, i_slice_p.len); while (v_p.ptr < i_end0_p) { v_s1 += ((uint32_t)(v_p.ptr[0u])); v_s2 += v_s1; @@ -28780,13 +32893,13 @@ wuffs_adler32__hasher__up_arm_neon( self->private_impl.f_state = (((v_s2 & 65535u) << 16u) | (v_s1 & 65535u)); return wuffs_base__make_empty_struct(); } -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) // ‼ WUFFS MULTI-FILE SECTION -arm_neon // ‼ WUFFS MULTI-FILE SECTION +x86_sse42 // -------- func adler32.hasher.up_x86_sse42 -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct @@ -28831,7 +32944,7 @@ wuffs_adler32__hasher__up_x86_sse42( wuffs_base__slice_u8 i_slice_p = a_x; v_p.ptr = i_slice_p.ptr; v_p.len = 32; - uint8_t* i_end0_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 32) * 32); + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 32) * 32)); while (v_p.ptr < i_end0_p) { v_q__left = _mm_lddqu_si128((const __m128i*)(const void*)(v_p.ptr)); v_q_right = _mm_lddqu_si128((const __m128i*)(const void*)(v_p.ptr + 16u)); @@ -28857,7 +32970,7 @@ wuffs_adler32__hasher__up_x86_sse42( wuffs_base__slice_u8 i_slice_p = wuffs_base__slice_u8__subslice_i(a_x, v_tail_index); v_p.ptr = i_slice_p.ptr; v_p.len = 1; - uint8_t* i_end0_p = i_slice_p.ptr + i_slice_p.len; + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(i_slice_p.ptr, i_slice_p.len); while (v_p.ptr < i_end0_p) { v_s1 += ((uint32_t)(v_p.ptr[0u])); v_s2 += v_s1; @@ -28873,7 +32986,7 @@ wuffs_adler32__hasher__up_x86_sse42( self->private_impl.f_state = (((v_s2 & 65535u) << 16u) | (v_s1 & 65535u)); return wuffs_base__make_empty_struct(); } -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) // ‼ WUFFS MULTI-FILE SECTION -x86_sse42 #endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ADLER32) @@ -29083,7 +33196,7 @@ wuffs_bmp__decoder__initialize( wuffs_bmp__decoder* wuffs_bmp__decoder__alloc(void) { wuffs_bmp__decoder* x = - (wuffs_bmp__decoder*)(calloc(sizeof(wuffs_bmp__decoder), 1)); + (wuffs_bmp__decoder*)(calloc(1, sizeof(wuffs_bmp__decoder))); if (!x) { return NULL; } @@ -29221,6 +33334,7 @@ wuffs_bmp__decoder__do_decode_image_config( uint32_t v_width = 0; uint32_t v_height = 0; uint32_t v_planes = 0; + uint32_t v_n = 0; uint32_t v_dst_pixfmt = 0; uint32_t v_byte_width = 0; @@ -29978,7 +34092,8 @@ wuffs_bmp__decoder__do_decode_image_config( } } } else if (self->private_impl.f_bitmap_info_len >= 40u) { - self->private_data.s_do_decode_image_config.scratch = (self->private_impl.f_bitmap_info_len - 40u); + v_n = (self->private_impl.f_bitmap_info_len - 40u); + self->private_data.s_do_decode_image_config.scratch = v_n; WUFFS_BASE__COROUTINE_SUSPENSION_POINT(45); if (self->private_data.s_do_decode_image_config.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { self->private_data.s_do_decode_image_config.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); @@ -30096,6 +34211,8 @@ wuffs_bmp__decoder__do_decode_image_config( (self->private_impl.f_channel_num_bits[2u] > 8u) || (self->private_impl.f_channel_num_bits[3u] > 8u)) { v_dst_pixfmt = 2164308923u; + } else if (((self->private_impl.f_src_pixfmt == 2198077448u) || (self->private_impl.f_src_pixfmt == 2147485832u) || (self->private_impl.f_src_pixfmt == 2415954056u)) || ((self->private_impl.f_src_pixfmt == 2164308923u) && (self->private_impl.f_channel_masks[3u] == 0u))) { + v_dst_pixfmt = 2415954056u; } wuffs_base__image_config__set( a_dst, @@ -30704,176 +34821,173 @@ wuffs_bmp__decoder__swizzle_rle( v_dst = wuffs_base__utility__empty_slice_u8(); } while (true) { - while (true) { - if (v_rle_state == 0u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 1u) { - goto label__goto_suspend__break; - } - v_code = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - if (v_code == 0u) { - v_rle_state = 2u; - continue; - } - self->private_impl.f_rle_length = ((uint32_t)(v_code)); - v_rle_state = 1u; + if (v_rle_state == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 1u) { + break; + } + v_code = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + if (v_code == 0u) { + v_rle_state = 2u; continue; - } else if (v_rle_state == 1u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 1u) { - goto label__goto_suspend__break; + } + self->private_impl.f_rle_length = ((uint32_t)(v_code)); + v_rle_state = 1u; + continue; + } else if (v_rle_state == 1u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 1u) { + break; + } + v_code = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + if (self->private_impl.f_bits_per_pixel == 8u) { + v_p0 = 0u; + while (v_p0 < self->private_impl.f_rle_length) { + self->private_data.f_scratch[v_p0] = v_code; + v_p0 += 1u; } - v_code = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - if (self->private_impl.f_bits_per_pixel == 8u) { - v_p0 = 0u; - while (v_p0 < self->private_impl.f_rle_length) { - self->private_data.f_scratch[v_p0] = v_code; - v_p0 += 1u; - } - } else { - v_indexes[0u] = ((uint8_t)(((uint8_t)(v_code >> 4u)))); - v_indexes[1u] = ((uint8_t)(v_code & 15u)); - v_p0 = 0u; - while (v_p0 < self->private_impl.f_rle_length) { - self->private_data.f_scratch[(v_p0 + 0u)] = v_indexes[0u]; - self->private_data.f_scratch[(v_p0 + 1u)] = v_indexes[1u]; - v_p0 += 2u; - } + } else { + v_indexes[0u] = ((uint8_t)(((uint8_t)(v_code >> 4u)))); + v_indexes[1u] = ((uint8_t)(v_code & 15u)); + v_p0 = 0u; + while (v_p0 < self->private_impl.f_rle_length) { + self->private_data.f_scratch[(v_p0 + 0u)] = v_indexes[0u]; + self->private_data.f_scratch[(v_p0 + 1u)] = v_indexes[1u]; + v_p0 += 2u; } - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, self->private_impl.f_rle_length)); - wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, self->private_impl.f_rle_length); - v_rle_state = 0u; - goto label__middle__continue; - } else if (v_rle_state == 2u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 1u) { - goto label__goto_suspend__break; + } + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, self->private_impl.f_rle_length)); + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, self->private_impl.f_rle_length); + v_rle_state = 0u; + goto label__middle__continue; + } else if (v_rle_state == 2u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 1u) { + break; + } + v_code = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + if (v_code < 2u) { + if ((self->private_impl.f_dst_y >= self->private_impl.f_height) && (v_code == 0u)) { + status = wuffs_base__make_status(wuffs_bmp__error__bad_rle_compression); + goto exit; } - v_code = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - if (v_code < 2u) { - if ((self->private_impl.f_dst_y >= self->private_impl.f_height) && (v_code == 0u)) { - status = wuffs_base__make_status(wuffs_bmp__error__bad_rle_compression); - goto exit; - } - wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black(&self->private_impl.f_swizzler, v_dst, v_dst_palette, 18446744073709551615u); - self->private_impl.f_dst_x = 0u; - self->private_impl.f_dst_y += self->private_impl.f_dst_y_inc; - if (v_code > 0u) { - goto label__outer__break; - } - v_rle_state = 0u; - goto label__outer__continue; - } else if (v_code == 2u) { - v_rle_state = 4u; - continue; + wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black(&self->private_impl.f_swizzler, v_dst, v_dst_palette, 18446744073709551615u); + self->private_impl.f_dst_x = 0u; + self->private_impl.f_dst_y += self->private_impl.f_dst_y_inc; + if (v_code > 0u) { + goto label__outer__break; } - self->private_impl.f_rle_length = ((uint32_t)(v_code)); - self->private_impl.f_rle_padded = ((self->private_impl.f_bits_per_pixel == 8u) && (((uint8_t)(v_code & 1u)) != 0u)); - v_rle_state = 3u; + v_rle_state = 0u; + goto label__outer__continue; + } else if (v_code == 2u) { + v_rle_state = 4u; continue; - } else if (v_rle_state == 3u) { - if (self->private_impl.f_bits_per_pixel == 8u) { - v_n = wuffs_base__pixel_swizzler__limited_swizzle_u32_interleaved_from_reader( - &self->private_impl.f_swizzler, - self->private_impl.f_rle_length, - v_dst, - v_dst_palette, - &iop_a_src, - io2_a_src); - wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(v_n))); - wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_rle_length, ((uint32_t)(v_n))); - } else { - v_chunk_count = ((self->private_impl.f_rle_length + 3u) / 4u); - v_p0 = 0u; - while ((v_chunk_count > 0u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 2u)) { - v_chunk_bits = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); - iop_a_src += 2u; - self->private_data.f_scratch[(v_p0 + 0u)] = ((uint8_t)((15u & (v_chunk_bits >> 12u)))); - self->private_data.f_scratch[(v_p0 + 1u)] = ((uint8_t)((15u & (v_chunk_bits >> 8u)))); - self->private_data.f_scratch[(v_p0 + 2u)] = ((uint8_t)((15u & (v_chunk_bits >> 4u)))); - self->private_data.f_scratch[(v_p0 + 3u)] = ((uint8_t)((15u & (v_chunk_bits >> 0u)))); - v_p0 = ((v_p0 & 255u) + 4u); - v_chunk_count -= 1u; - } - v_p0 = wuffs_base__u32__min(v_p0, self->private_impl.f_rle_length); - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, v_p0)); - wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, v_p0); - wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_rle_length, v_p0); - } - if (self->private_impl.f_rle_length > 0u) { - goto label__goto_suspend__break; - } - if (self->private_impl.f_rle_padded) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 1u) { - goto label__goto_suspend__break; - } - iop_a_src += 1u; - self->private_impl.f_rle_padded = false; + } + self->private_impl.f_rle_length = ((uint32_t)(v_code)); + self->private_impl.f_rle_padded = ((self->private_impl.f_bits_per_pixel == 8u) && (((uint8_t)(v_code & 1u)) != 0u)); + v_rle_state = 3u; + continue; + } else if (v_rle_state == 3u) { + if (self->private_impl.f_bits_per_pixel == 8u) { + v_n = wuffs_base__pixel_swizzler__limited_swizzle_u32_interleaved_from_reader( + &self->private_impl.f_swizzler, + self->private_impl.f_rle_length, + v_dst, + v_dst_palette, + &iop_a_src, + io2_a_src); + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(v_n))); + wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_rle_length, ((uint32_t)(v_n))); + } else { + v_chunk_count = ((self->private_impl.f_rle_length + 3u) / 4u); + v_p0 = 0u; + while ((v_chunk_count > 0u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 2u)) { + v_chunk_bits = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + iop_a_src += 2u; + self->private_data.f_scratch[(v_p0 + 0u)] = ((uint8_t)((15u & (v_chunk_bits >> 12u)))); + self->private_data.f_scratch[(v_p0 + 1u)] = ((uint8_t)((15u & (v_chunk_bits >> 8u)))); + self->private_data.f_scratch[(v_p0 + 2u)] = ((uint8_t)((15u & (v_chunk_bits >> 4u)))); + self->private_data.f_scratch[(v_p0 + 3u)] = ((uint8_t)((15u & (v_chunk_bits >> 0u)))); + v_p0 = ((v_p0 & 255u) + 4u); + v_chunk_count -= 1u; } - v_rle_state = 0u; - goto label__middle__continue; - } else if (v_rle_state == 4u) { + v_p0 = wuffs_base__u32__min(v_p0, self->private_impl.f_rle_length); + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, v_p0)); + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, v_p0); + wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_rle_length, v_p0); + } + if (self->private_impl.f_rle_length > 0u) { + break; + } + if (self->private_impl.f_rle_padded) { if (((uint64_t)(io2_a_src - iop_a_src)) < 1u) { - goto label__goto_suspend__break; + break; } - self->private_impl.f_rle_delta_x = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); iop_a_src += 1u; - v_rle_state = 5u; - continue; + self->private_impl.f_rle_padded = false; } + v_rle_state = 0u; + goto label__middle__continue; + } else if (v_rle_state == 4u) { if (((uint64_t)(io2_a_src - iop_a_src)) < 1u) { - goto label__goto_suspend__break; + break; } - v_code = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + self->private_impl.f_rle_delta_x = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); iop_a_src += 1u; - if (self->private_impl.f_rle_delta_x > 0u) { - wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black(&self->private_impl.f_swizzler, v_dst, v_dst_palette, ((uint64_t)(self->private_impl.f_rle_delta_x))); - wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(self->private_impl.f_rle_delta_x))); - self->private_impl.f_rle_delta_x = 0u; - if (self->private_impl.f_dst_x > self->private_impl.f_width) { - status = wuffs_base__make_status(wuffs_bmp__error__bad_rle_compression); - goto exit; - } + v_rle_state = 5u; + continue; + } + if (((uint64_t)(io2_a_src - iop_a_src)) < 1u) { + break; + } + v_code = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + if (self->private_impl.f_rle_delta_x > 0u) { + wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black(&self->private_impl.f_swizzler, v_dst, v_dst_palette, ((uint64_t)(self->private_impl.f_rle_delta_x))); + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(self->private_impl.f_rle_delta_x))); + self->private_impl.f_rle_delta_x = 0u; + if (self->private_impl.f_dst_x > self->private_impl.f_width) { + status = wuffs_base__make_status(wuffs_bmp__error__bad_rle_compression); + goto exit; } - if (v_code > 0u) { + } + if (v_code > 0u) { #if defined(__GNUC__) #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wconversion" #endif - v_code -= 1u; + v_code -= 1u; #if defined(__GNUC__) #pragma GCC diagnostic pop #endif - while (true) { - self->private_impl.f_dst_y += self->private_impl.f_dst_y_inc; - if (self->private_impl.f_dst_y >= self->private_impl.f_height) { - status = wuffs_base__make_status(wuffs_bmp__error__bad_rle_compression); - goto exit; - } - v_row = wuffs_private_impl__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); - if (v_dst_bytes_per_row < ((uint64_t)(v_row.len))) { - v_row = wuffs_base__slice_u8__subslice_j(v_row, v_dst_bytes_per_row); - } - if (v_code <= 0u) { - wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black(&self->private_impl.f_swizzler, v_row, v_dst_palette, ((uint64_t)(self->private_impl.f_dst_x))); - break; - } - wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black(&self->private_impl.f_swizzler, v_row, v_dst_palette, 18446744073709551615u); + while (true) { + self->private_impl.f_dst_y += self->private_impl.f_dst_y_inc; + if (self->private_impl.f_dst_y >= self->private_impl.f_height) { + status = wuffs_base__make_status(wuffs_bmp__error__bad_rle_compression); + goto exit; + } + v_row = wuffs_private_impl__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); + if (v_dst_bytes_per_row < ((uint64_t)(v_row.len))) { + v_row = wuffs_base__slice_u8__subslice_j(v_row, v_dst_bytes_per_row); + } + if (v_code <= 0u) { + wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black(&self->private_impl.f_swizzler, v_row, v_dst_palette, ((uint64_t)(self->private_impl.f_dst_x))); + break; + } + wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black(&self->private_impl.f_swizzler, v_row, v_dst_palette, 18446744073709551615u); #if defined(__GNUC__) #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wconversion" #endif - v_code -= 1u; + v_code -= 1u; #if defined(__GNUC__) #pragma GCC diagnostic pop #endif - } } - v_rle_state = 0u; - goto label__middle__continue; } + v_rle_state = 0u; + goto label__middle__continue; } - label__goto_suspend__break:; self->private_impl.f_rle_state = v_rle_state; status = wuffs_base__make_status(wuffs_bmp__note__internal_note_short_read); goto ok; @@ -31848,7 +35962,7 @@ wuffs_bzip2__decoder__initialize( wuffs_bzip2__decoder* wuffs_bzip2__decoder__alloc(void) { wuffs_bzip2__decoder* x = - (wuffs_bzip2__decoder*)(calloc(sizeof(wuffs_bzip2__decoder), 1)); + (wuffs_bzip2__decoder*)(calloc(1, sizeof(wuffs_bzip2__decoder))); if (!x) { return NULL; } @@ -32025,7 +36139,7 @@ wuffs_bzip2__decoder__do_transform_io( wuffs_base__slice_u8 a_workbuf) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; + uint8_t v_c8 = 0; uint32_t v_i = 0; uint64_t v_tag = 0; wuffs_base__status v_status = wuffs_base__make_status(NULL); @@ -32058,9 +36172,9 @@ wuffs_bzip2__decoder__do_transform_io( goto suspend; } uint8_t t_0 = *iop_a_src++; - v_c = t_0; + v_c8 = t_0; } - if (v_c != 66u) { + if (v_c8 != 66u) { status = wuffs_base__make_status(wuffs_bzip2__error__bad_header); goto exit; } @@ -32071,9 +36185,9 @@ wuffs_bzip2__decoder__do_transform_io( goto suspend; } uint8_t t_1 = *iop_a_src++; - v_c = t_1; + v_c8 = t_1; } - if (v_c != 90u) { + if (v_c8 != 90u) { status = wuffs_base__make_status(wuffs_bzip2__error__bad_header); goto exit; } @@ -32084,9 +36198,9 @@ wuffs_bzip2__decoder__do_transform_io( goto suspend; } uint8_t t_2 = *iop_a_src++; - v_c = t_2; + v_c8 = t_2; } - if (v_c != 104u) { + if (v_c8 != 104u) { status = wuffs_base__make_status(wuffs_bzip2__error__bad_header); goto exit; } @@ -32097,13 +36211,13 @@ wuffs_bzip2__decoder__do_transform_io( goto suspend; } uint8_t t_3 = *iop_a_src++; - v_c = t_3; + v_c8 = t_3; } - if ((v_c < 49u) || (57u < v_c)) { + if ((v_c8 < 49u) || (57u < v_c8)) { status = wuffs_base__make_status(wuffs_bzip2__error__bad_header); goto exit; } - self->private_impl.f_max_incl_block_size = (((uint32_t)(((uint8_t)(v_c - 48u)))) * 100000u); + self->private_impl.f_max_incl_block_size = (((uint32_t)(((uint8_t)(v_c8 - 48u)))) * 100000u); while (true) { v_tag = 0u; v_i = 0u; @@ -32116,9 +36230,9 @@ wuffs_bzip2__decoder__do_transform_io( goto suspend; } uint8_t t_4 = *iop_a_src++; - v_c = t_4; + v_c8 = t_4; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); self->private_impl.f_n_bits = 8u; } v_tag <<= 1u; @@ -32214,9 +36328,9 @@ wuffs_bzip2__decoder__do_transform_io( goto suspend; } uint8_t t_5 = *iop_a_src++; - v_c = t_5; + v_c8 = t_5; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); self->private_impl.f_n_bits = 8u; } v_final_checksum_want <<= 1u; @@ -32261,7 +36375,7 @@ wuffs_bzip2__decoder__prepare_block( wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; + uint8_t v_c8 = 0; uint32_t v_i = 0; uint32_t v_j = 0; uint32_t v_selector = 0; @@ -32299,9 +36413,9 @@ wuffs_bzip2__decoder__prepare_block( goto suspend; } uint8_t t_0 = *iop_a_src++; - v_c = t_0; + v_c8 = t_0; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); self->private_impl.f_n_bits = 8u; } self->private_impl.f_block_checksum_want <<= 1u; @@ -32318,9 +36432,9 @@ wuffs_bzip2__decoder__prepare_block( goto suspend; } uint8_t t_1 = *iop_a_src++; - v_c = t_1; + v_c8 = t_1; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); self->private_impl.f_n_bits = 8u; } if ((self->private_impl.f_bits >> 31u) != 0u) { @@ -32340,9 +36454,9 @@ wuffs_bzip2__decoder__prepare_block( goto suspend; } uint8_t t_2 = *iop_a_src++; - v_c = t_2; + v_c8 = t_2; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); self->private_impl.f_n_bits = 8u; } self->private_impl.f_original_pointer <<= 1u; @@ -32366,9 +36480,9 @@ wuffs_bzip2__decoder__prepare_block( goto suspend; } uint8_t t_3 = *iop_a_src++; - v_c = t_3; + v_c8 = t_3; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); self->private_impl.f_n_bits = 8u; } if ((self->private_impl.f_bits >> 31u) != 0u) { @@ -32394,9 +36508,9 @@ wuffs_bzip2__decoder__prepare_block( goto suspend; } uint8_t t_4 = *iop_a_src++; - v_c = t_4; + v_c8 = t_4; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); self->private_impl.f_n_bits = 8u; } self->private_data.f_scratch += (self->private_impl.f_bits >> 31u); @@ -32425,9 +36539,9 @@ wuffs_bzip2__decoder__prepare_block( goto suspend; } uint8_t t_5 = *iop_a_src++; - v_c = t_5; + v_c8 = t_5; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); self->private_impl.f_n_bits = 8u; } self->private_data.f_scratch <<= 1u; @@ -32452,9 +36566,9 @@ wuffs_bzip2__decoder__prepare_block( goto suspend; } uint8_t t_6 = *iop_a_src++; - v_c = t_6; + v_c8 = t_6; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); self->private_impl.f_n_bits = 8u; } self->private_data.f_scratch <<= 1u; @@ -32485,9 +36599,9 @@ wuffs_bzip2__decoder__prepare_block( goto suspend; } uint8_t t_7 = *iop_a_src++; - v_c = t_7; + v_c8 = t_7; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); self->private_impl.f_n_bits = 8u; } if ((self->private_impl.f_bits >> 31u) == 0u) { @@ -32580,7 +36694,7 @@ wuffs_bzip2__decoder__read_code_lengths( wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; + uint8_t v_c8 = 0; uint32_t v_i = 0; uint32_t v_code_length = 0; @@ -32614,9 +36728,9 @@ wuffs_bzip2__decoder__read_code_lengths( goto suspend; } uint8_t t_0 = *iop_a_src++; - v_c = t_0; + v_c8 = t_0; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); self->private_impl.f_n_bits = 8u; } v_code_length <<= 1u; @@ -32640,9 +36754,9 @@ wuffs_bzip2__decoder__read_code_lengths( goto suspend; } uint8_t t_1 = *iop_a_src++; - v_c = t_1; + v_c8 = t_1; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); self->private_impl.f_n_bits = 8u; } if ((self->private_impl.f_bits >> 31u) == 0u) { @@ -32660,9 +36774,9 @@ wuffs_bzip2__decoder__read_code_lengths( goto suspend; } uint8_t t_2 = *iop_a_src++; - v_c = t_2; + v_c8 = t_2; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); self->private_impl.f_n_bits = 8u; } if ((self->private_impl.f_bits >> 31u) == 0u) { @@ -33185,7 +37299,7 @@ wuffs_bzip2__decoder__decode_huffman_slow( wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; + uint8_t v_c8 = 0; uint32_t v_node_index = 0; uint16_t v_child = 0; uint32_t v_child_ff = 0; @@ -33235,9 +37349,9 @@ wuffs_bzip2__decoder__decode_huffman_slow( goto suspend; } uint8_t t_0 = *iop_a_src++; - v_c = t_0; + v_c8 = t_0; } - self->private_impl.f_bits = (((uint32_t)(v_c)) << 24u); + self->private_impl.f_bits = (((uint32_t)(v_c8)) << 24u); self->private_impl.f_n_bits = 8u; } v_child = self->private_data.f_huffman_trees[self->private_impl.f_decode_huffman_which][v_node_index][(self->private_impl.f_bits >> 31u)]; @@ -33406,7 +37520,7 @@ wuffs_cbor__decoder__initialize( wuffs_cbor__decoder* wuffs_cbor__decoder__alloc(void) { wuffs_cbor__decoder* x = - (wuffs_cbor__decoder*)(calloc(sizeof(wuffs_cbor__decoder), 1)); + (wuffs_cbor__decoder*)(calloc(1, sizeof(wuffs_cbor__decoder))); if (!x) { return NULL; } @@ -33521,7 +37635,7 @@ wuffs_cbor__decoder__decode_tokens( uint32_t v_vminor = 0; uint32_t v_vminor_alt = 0; uint32_t v_continued = 0; - uint8_t v_c = 0; + uint8_t v_c8 = 0; uint8_t v_c_major = 0; uint8_t v_c_minor = 0; bool v_tagged = false; @@ -33583,9 +37697,9 @@ wuffs_cbor__decoder__decode_tokens( WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); goto label__outer__continue; } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - if ((v_indefinite_string_major_type != 0u) && (v_indefinite_string_major_type != ((uint8_t)(v_c >> 5u)))) { - if (v_c != 255u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + if ((v_indefinite_string_major_type != 0u) && (v_indefinite_string_major_type != ((uint8_t)(v_c8 >> 5u)))) { + if (v_c8 != 255u) { status = wuffs_base__make_status(wuffs_cbor__error__bad_input); goto exit; } @@ -33601,8 +37715,8 @@ wuffs_cbor__decoder__decode_tokens( goto label__goto_parsed_a_leaf_value__break; } iop_a_src += 1u; - v_c_major = ((uint8_t)(((uint8_t)(v_c >> 5u)))); - v_c_minor = ((uint8_t)(v_c & 31u)); + v_c_major = ((uint8_t)(((uint8_t)(v_c8 >> 5u)))); + v_c_minor = ((uint8_t)(v_c8 & 31u)); if (v_c_minor < 24u) { v_string_length = ((uint64_t)(v_c_minor)); } else { @@ -33682,7 +37796,7 @@ wuffs_cbor__decoder__decode_tokens( (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); } else { *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(787997u)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | + (((uint64_t)(731642u)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | (((uint64_t)(16777216u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | (((uint64_t)(9u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); } @@ -33906,12 +38020,12 @@ wuffs_cbor__decoder__decode_tokens( } if (v_string_length < 262144u) { *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(787997u)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | + (((uint64_t)(731642u)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | (((uint64_t)((4194304u | ((uint32_t)(v_string_length))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | (((uint64_t)(((uint32_t)(WUFFS_CBOR__TOKEN_LENGTHS[v_c_minor])))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); } else { *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(787997u)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | + (((uint64_t)(731642u)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | (((uint64_t)((4194304u | ((uint32_t)((v_string_length >> 46u)))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); @@ -33924,7 +38038,7 @@ wuffs_cbor__decoder__decode_tokens( } else if (v_c_major == 7u) { if (v_c_minor < 20u) { *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(787997u)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | + (((uint64_t)(731642u)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | (((uint64_t)((8388608u | ((uint32_t)((v_string_length & 255u)))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); goto label__goto_parsed_a_leaf_value__break; @@ -33943,7 +38057,7 @@ wuffs_cbor__decoder__decode_tokens( break; } *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(787997u)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | + (((uint64_t)(731642u)) << WUFFS_BASE__TOKEN__VALUE_MAJOR__SHIFT) | (((uint64_t)((8388608u | ((uint32_t)((v_string_length & 255u)))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); goto label__goto_parsed_a_leaf_value__break; @@ -34616,30 +38730,6 @@ WUFFS_CRC32__IEEE_TABLE[16][256] WUFFS_BASE__POTENTIALLY_UNUSED = { }, }; -static const uint8_t -WUFFS_CRC32__IEEE_X86_SSE42_K1K2[16] WUFFS_BASE__POTENTIALLY_UNUSED = { - 212u, 43u, 68u, 84u, 1u, 0u, 0u, 0u, - 150u, 21u, 228u, 198u, 1u, 0u, 0u, 0u, -}; - -static const uint8_t -WUFFS_CRC32__IEEE_X86_SSE42_K3K4[16] WUFFS_BASE__POTENTIALLY_UNUSED = { - 208u, 151u, 25u, 117u, 1u, 0u, 0u, 0u, - 158u, 0u, 170u, 204u, 0u, 0u, 0u, 0u, -}; - -static const uint8_t -WUFFS_CRC32__IEEE_X86_SSE42_K5ZZ[16] WUFFS_BASE__POTENTIALLY_UNUSED = { - 36u, 97u, 205u, 99u, 1u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, -}; - -static const uint8_t -WUFFS_CRC32__IEEE_X86_SSE42_PXMU[16] WUFFS_BASE__POTENTIALLY_UNUSED = { - 65u, 6u, 113u, 219u, 1u, 0u, 0u, 0u, - 65u, 22u, 1u, 247u, 1u, 0u, 0u, 0u, -}; - // ---------------- Private Initializer Prototypes // ---------------- Private Function Prototypes @@ -34656,29 +38746,21 @@ wuffs_crc32__ieee_hasher__up__choosy_default( wuffs_crc32__ieee_hasher* self, wuffs_base__slice_u8 a_x); -#if defined(WUFFS_BASE__CPU_ARCH__ARM_CRC32) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_CRC32) WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct wuffs_crc32__ieee_hasher__up_arm_crc32( wuffs_crc32__ieee_hasher* self, wuffs_base__slice_u8 a_x); -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_CRC32) - -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_crc32__ieee_hasher__up_x86_avx2( - wuffs_crc32__ieee_hasher* self, - wuffs_base__slice_u8 a_x); -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_64) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_CRC32) -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct wuffs_crc32__ieee_hasher__up_x86_sse42( wuffs_crc32__ieee_hasher* self, wuffs_base__slice_u8 a_x); -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) // ---------------- VTables @@ -34750,7 +38832,7 @@ wuffs_crc32__ieee_hasher__initialize( wuffs_crc32__ieee_hasher* wuffs_crc32__ieee_hasher__alloc(void) { wuffs_crc32__ieee_hasher* x = - (wuffs_crc32__ieee_hasher*)(calloc(sizeof(wuffs_crc32__ieee_hasher), 1)); + (wuffs_crc32__ieee_hasher*)(calloc(1, sizeof(wuffs_crc32__ieee_hasher))); if (!x) { return NULL; } @@ -34824,13 +38906,10 @@ wuffs_crc32__ieee_hasher__update( if (self->private_impl.f_state == 0u) { self->private_impl.choosy_up = ( -#if defined(WUFFS_BASE__CPU_ARCH__ARM_CRC32) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_CRC32) wuffs_base__cpu_arch__have_arm_crc32() ? &wuffs_crc32__ieee_hasher__up_arm_crc32 : #endif -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) - wuffs_base__cpu_arch__have_x86_avx2() ? &wuffs_crc32__ieee_hasher__up_x86_avx2 : -#endif -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_crc32__ieee_hasher__up_x86_sse42 : #endif self->private_impl.choosy_up); @@ -34880,7 +38959,7 @@ wuffs_crc32__ieee_hasher__up__choosy_default( wuffs_base__slice_u8 i_slice_p = a_x; v_p.ptr = i_slice_p.ptr; v_p.len = 16; - uint8_t* i_end0_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 32) * 32); + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 32) * 32)); while (v_p.ptr < i_end0_p) { v_s ^= ((((uint32_t)(v_p.ptr[0u])) << 0u) | (((uint32_t)(v_p.ptr[1u])) << 8u) | @@ -34926,7 +39005,7 @@ wuffs_crc32__ieee_hasher__up__choosy_default( v_p.ptr += 16; } v_p.len = 16; - uint8_t* i_end1_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 16) * 16); + const uint8_t* i_end1_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 16) * 16)); while (v_p.ptr < i_end1_p) { v_s ^= ((((uint32_t)(v_p.ptr[0u])) << 0u) | (((uint32_t)(v_p.ptr[1u])) << 8u) | @@ -34951,7 +39030,7 @@ wuffs_crc32__ieee_hasher__up__choosy_default( v_p.ptr += 16; } v_p.len = 1; - uint8_t* i_end2_p = i_slice_p.ptr + i_slice_p.len; + const uint8_t* i_end2_p = wuffs_private_impl__ptr_u8_plus_len(i_slice_p.ptr, i_slice_p.len); while (v_p.ptr < i_end2_p) { v_s = (WUFFS_CRC32__IEEE_TABLE[0u][((uint8_t)(((uint8_t)(v_s)) ^ v_p.ptr[0u]))] ^ (v_s >> 8u)); v_p.ptr += 1; @@ -34982,7 +39061,7 @@ wuffs_crc32__ieee_hasher__checksum_u32( // ‼ WUFFS MULTI-FILE SECTION +arm_crc32 // -------- func crc32.ieee_hasher.up_arm_crc32 -#if defined(WUFFS_BASE__CPU_ARCH__ARM_CRC32) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_CRC32) WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct wuffs_crc32__ieee_hasher__up_arm_crc32( @@ -35000,7 +39079,7 @@ wuffs_crc32__ieee_hasher__up_arm_crc32( wuffs_base__slice_u8 i_slice_p = a_x; v_p.ptr = i_slice_p.ptr; v_p.len = 8; - uint8_t* i_end0_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 128) * 128); + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 128) * 128)); while (v_p.ptr < i_end0_p) { v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); v_p.ptr += 8; @@ -35036,13 +39115,13 @@ wuffs_crc32__ieee_hasher__up_arm_crc32( v_p.ptr += 8; } v_p.len = 8; - uint8_t* i_end1_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 8) * 8); + const uint8_t* i_end1_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 8) * 8)); while (v_p.ptr < i_end1_p) { v_s = __crc32d(v_s, wuffs_base__peek_u64le__no_bounds_check(v_p.ptr)); v_p.ptr += 8; } v_p.len = 1; - uint8_t* i_end2_p = i_slice_p.ptr + i_slice_p.len; + const uint8_t* i_end2_p = wuffs_private_impl__ptr_u8_plus_len(i_slice_p.ptr, i_slice_p.len); while (v_p.ptr < i_end2_p) { v_s = __crc32b(v_s, v_p.ptr[0u]); v_p.ptr += 1; @@ -35052,133 +39131,13 @@ wuffs_crc32__ieee_hasher__up_arm_crc32( self->private_impl.f_state = (4294967295u ^ v_s); return wuffs_base__make_empty_struct(); } -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_CRC32) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_CRC32) // ‼ WUFFS MULTI-FILE SECTION -arm_crc32 -// ‼ WUFFS MULTI-FILE SECTION +x86_avx2 -// -------- func crc32.ieee_hasher.up_x86_avx2 - -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2,avx2") -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_crc32__ieee_hasher__up_x86_avx2( - wuffs_crc32__ieee_hasher* self, - wuffs_base__slice_u8 a_x) { - uint32_t v_s = 0; - wuffs_base__slice_u8 v_p = {0}; - __m128i v_k = {0}; - __m128i v_x0 = {0}; - __m128i v_x1 = {0}; - __m128i v_x2 = {0}; - __m128i v_x3 = {0}; - __m128i v_y0 = {0}; - __m128i v_y1 = {0}; - __m128i v_y2 = {0}; - __m128i v_y3 = {0}; - uint64_t v_tail_index = 0; - - v_s = (4294967295u ^ self->private_impl.f_state); - while ((((uint64_t)(a_x.len)) > 0u) && ((15u & ((uint32_t)(0xFFFu & (uintptr_t)(a_x.ptr)))) != 0u)) { - v_s = (WUFFS_CRC32__IEEE_TABLE[0u][((uint8_t)(((uint8_t)(v_s)) ^ a_x.ptr[0u]))] ^ (v_s >> 8u)); - a_x = wuffs_base__slice_u8__subslice_i(a_x, 1u); - } - if (((uint64_t)(a_x.len)) < 64u) { - { - wuffs_base__slice_u8 i_slice_p = a_x; - v_p.ptr = i_slice_p.ptr; - v_p.len = 1; - uint8_t* i_end0_p = i_slice_p.ptr + i_slice_p.len; - while (v_p.ptr < i_end0_p) { - v_s = (WUFFS_CRC32__IEEE_TABLE[0u][((uint8_t)(((uint8_t)(v_s)) ^ v_p.ptr[0u]))] ^ (v_s >> 8u)); - v_p.ptr += 1; - } - v_p.len = 0; - } - self->private_impl.f_state = (4294967295u ^ v_s); - return wuffs_base__make_empty_struct(); - } - v_x0 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 0u)); - v_x1 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 16u)); - v_x2 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 32u)); - v_x3 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 48u)); - v_x0 = _mm_xor_si128(v_x0, _mm_cvtsi32_si128((int32_t)(v_s))); - v_k = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC32__IEEE_X86_SSE42_K1K2)); - { - wuffs_base__slice_u8 i_slice_p = wuffs_base__slice_u8__subslice_i(a_x, 64u); - v_p.ptr = i_slice_p.ptr; - v_p.len = 64; - uint8_t* i_end0_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 64) * 64); - while (v_p.ptr < i_end0_p) { - v_y0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(0u)); - v_y1 = _mm_clmulepi64_si128(v_x1, v_k, (int32_t)(0u)); - v_y2 = _mm_clmulepi64_si128(v_x2, v_k, (int32_t)(0u)); - v_y3 = _mm_clmulepi64_si128(v_x3, v_k, (int32_t)(0u)); - v_x0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(17u)); - v_x1 = _mm_clmulepi64_si128(v_x1, v_k, (int32_t)(17u)); - v_x2 = _mm_clmulepi64_si128(v_x2, v_k, (int32_t)(17u)); - v_x3 = _mm_clmulepi64_si128(v_x3, v_k, (int32_t)(17u)); - v_x0 = _mm_xor_si128(_mm_xor_si128(v_x0, v_y0), _mm_lddqu_si128((const __m128i*)(const void*)(v_p.ptr + 0u))); - v_x1 = _mm_xor_si128(_mm_xor_si128(v_x1, v_y1), _mm_lddqu_si128((const __m128i*)(const void*)(v_p.ptr + 16u))); - v_x2 = _mm_xor_si128(_mm_xor_si128(v_x2, v_y2), _mm_lddqu_si128((const __m128i*)(const void*)(v_p.ptr + 32u))); - v_x3 = _mm_xor_si128(_mm_xor_si128(v_x3, v_y3), _mm_lddqu_si128((const __m128i*)(const void*)(v_p.ptr + 48u))); - v_p.ptr += 64; - } - v_p.len = 0; - } - v_k = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC32__IEEE_X86_SSE42_K3K4)); - v_y0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(0u)); - v_x0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(17u)); - v_x0 = _mm_xor_si128(v_x0, v_x1); - v_x0 = _mm_xor_si128(v_x0, v_y0); - v_y0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(0u)); - v_x0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(17u)); - v_x0 = _mm_xor_si128(v_x0, v_x2); - v_x0 = _mm_xor_si128(v_x0, v_y0); - v_y0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(0u)); - v_x0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(17u)); - v_x0 = _mm_xor_si128(v_x0, v_x3); - v_x0 = _mm_xor_si128(v_x0, v_y0); - v_x1 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(16u)); - v_x2 = _mm_set_epi32((int32_t)(0u), (int32_t)(4294967295u), (int32_t)(0u), (int32_t)(4294967295u)); - v_x0 = _mm_srli_si128(v_x0, (int32_t)(8u)); - v_x0 = _mm_xor_si128(v_x0, v_x1); - v_k = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC32__IEEE_X86_SSE42_K5ZZ)); - v_x1 = _mm_srli_si128(v_x0, (int32_t)(4u)); - v_x0 = _mm_and_si128(v_x0, v_x2); - v_x0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(0u)); - v_x0 = _mm_xor_si128(v_x0, v_x1); - v_k = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC32__IEEE_X86_SSE42_PXMU)); - v_x1 = _mm_and_si128(v_x0, v_x2); - v_x1 = _mm_clmulepi64_si128(v_x1, v_k, (int32_t)(16u)); - v_x1 = _mm_and_si128(v_x1, v_x2); - v_x1 = _mm_clmulepi64_si128(v_x1, v_k, (int32_t)(0u)); - v_x0 = _mm_xor_si128(v_x0, v_x1); - v_s = ((uint32_t)(_mm_extract_epi32(v_x0, (int32_t)(1u)))); - v_tail_index = (((uint64_t)(a_x.len)) & 18446744073709551552u); - if (v_tail_index < ((uint64_t)(a_x.len))) { - { - wuffs_base__slice_u8 i_slice_p = wuffs_base__slice_u8__subslice_i(a_x, v_tail_index); - v_p.ptr = i_slice_p.ptr; - v_p.len = 1; - uint8_t* i_end0_p = i_slice_p.ptr + i_slice_p.len; - while (v_p.ptr < i_end0_p) { - v_s = (WUFFS_CRC32__IEEE_TABLE[0u][((uint8_t)(((uint8_t)(v_s)) ^ v_p.ptr[0u]))] ^ (v_s >> 8u)); - v_p.ptr += 1; - } - v_p.len = 0; - } - } - self->private_impl.f_state = (4294967295u ^ v_s); - return wuffs_base__make_empty_struct(); -} -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_64) -// ‼ WUFFS MULTI-FILE SECTION -x86_avx2 - // ‼ WUFFS MULTI-FILE SECTION +x86_sse42 // -------- func crc32.ieee_hasher.up_x86_sse42 -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct @@ -35186,113 +39145,125 @@ wuffs_crc32__ieee_hasher__up_x86_sse42( wuffs_crc32__ieee_hasher* self, wuffs_base__slice_u8 a_x) { uint32_t v_s = 0; - wuffs_base__slice_u8 v_p = {0}; - __m128i v_k = {0}; + __m128i v_kk = {0}; __m128i v_x0 = {0}; __m128i v_x1 = {0}; __m128i v_x2 = {0}; __m128i v_x3 = {0}; + __m128i v_x4 = {0}; + __m128i v_x5 = {0}; + __m128i v_x6 = {0}; + __m128i v_x7 = {0}; __m128i v_y0 = {0}; __m128i v_y1 = {0}; __m128i v_y2 = {0}; __m128i v_y3 = {0}; - uint64_t v_tail_index = 0; + __m128i v_y4 = {0}; + __m128i v_y5 = {0}; + __m128i v_y6 = {0}; + __m128i v_y7 = {0}; v_s = (4294967295u ^ self->private_impl.f_state); while ((((uint64_t)(a_x.len)) > 0u) && ((15u & ((uint32_t)(0xFFFu & (uintptr_t)(a_x.ptr)))) != 0u)) { v_s = (WUFFS_CRC32__IEEE_TABLE[0u][((uint8_t)(((uint8_t)(v_s)) ^ a_x.ptr[0u]))] ^ (v_s >> 8u)); a_x = wuffs_base__slice_u8__subslice_i(a_x, 1u); } - if (((uint64_t)(a_x.len)) < 64u) { - { - wuffs_base__slice_u8 i_slice_p = a_x; - v_p.ptr = i_slice_p.ptr; - v_p.len = 1; - uint8_t* i_end0_p = i_slice_p.ptr + i_slice_p.len; - while (v_p.ptr < i_end0_p) { - v_s = (WUFFS_CRC32__IEEE_TABLE[0u][((uint8_t)(((uint8_t)(v_s)) ^ v_p.ptr[0u]))] ^ (v_s >> 8u)); - v_p.ptr += 1; - } - v_p.len = 0; - } - self->private_impl.f_state = (4294967295u ^ v_s); - return wuffs_base__make_empty_struct(); - } - v_x0 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 0u)); - v_x1 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 16u)); - v_x2 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 32u)); - v_x3 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 48u)); - v_x0 = _mm_xor_si128(v_x0, _mm_cvtsi32_si128((int32_t)(v_s))); - v_k = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC32__IEEE_X86_SSE42_K1K2)); - { - wuffs_base__slice_u8 i_slice_p = wuffs_base__slice_u8__subslice_i(a_x, 64u); - v_p.ptr = i_slice_p.ptr; - v_p.len = 64; - uint8_t* i_end0_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 64) * 64); - while (v_p.ptr < i_end0_p) { - v_y0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(0u)); - v_y1 = _mm_clmulepi64_si128(v_x1, v_k, (int32_t)(0u)); - v_y2 = _mm_clmulepi64_si128(v_x2, v_k, (int32_t)(0u)); - v_y3 = _mm_clmulepi64_si128(v_x3, v_k, (int32_t)(0u)); - v_x0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(17u)); - v_x1 = _mm_clmulepi64_si128(v_x1, v_k, (int32_t)(17u)); - v_x2 = _mm_clmulepi64_si128(v_x2, v_k, (int32_t)(17u)); - v_x3 = _mm_clmulepi64_si128(v_x3, v_k, (int32_t)(17u)); - v_x0 = _mm_xor_si128(_mm_xor_si128(v_x0, v_y0), _mm_lddqu_si128((const __m128i*)(const void*)(v_p.ptr + 0u))); - v_x1 = _mm_xor_si128(_mm_xor_si128(v_x1, v_y1), _mm_lddqu_si128((const __m128i*)(const void*)(v_p.ptr + 16u))); - v_x2 = _mm_xor_si128(_mm_xor_si128(v_x2, v_y2), _mm_lddqu_si128((const __m128i*)(const void*)(v_p.ptr + 32u))); - v_x3 = _mm_xor_si128(_mm_xor_si128(v_x3, v_y3), _mm_lddqu_si128((const __m128i*)(const void*)(v_p.ptr + 48u))); - v_p.ptr += 64; - } - v_p.len = 0; + if (((uint64_t)(a_x.len)) >= 128u) { + v_x0 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 0u)); + v_x1 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 16u)); + v_x2 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 32u)); + v_x3 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 48u)); + v_x4 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 64u)); + v_x5 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 80u)); + v_x6 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 96u)); + v_x7 = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 112u)); + v_kk = _mm_set_epi32((int32_t)(0u), (int32_t)(2433674945u), (int32_t)(0u), (int32_t)(872412467u)); + v_x0 = _mm_xor_si128(v_x0, _mm_cvtsi32_si128((int32_t)(v_s))); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 128u); + while (((uint64_t)(a_x.len)) >= 128u) { + v_y0 = _mm_clmulepi64_si128(v_x0, v_kk, (int32_t)(0u)); + v_x0 = _mm_clmulepi64_si128(v_x0, v_kk, (int32_t)(17u)); + v_y1 = _mm_clmulepi64_si128(v_x1, v_kk, (int32_t)(0u)); + v_x1 = _mm_clmulepi64_si128(v_x1, v_kk, (int32_t)(17u)); + v_y2 = _mm_clmulepi64_si128(v_x2, v_kk, (int32_t)(0u)); + v_x2 = _mm_clmulepi64_si128(v_x2, v_kk, (int32_t)(17u)); + v_y3 = _mm_clmulepi64_si128(v_x3, v_kk, (int32_t)(0u)); + v_x3 = _mm_clmulepi64_si128(v_x3, v_kk, (int32_t)(17u)); + v_y4 = _mm_clmulepi64_si128(v_x4, v_kk, (int32_t)(0u)); + v_x4 = _mm_clmulepi64_si128(v_x4, v_kk, (int32_t)(17u)); + v_y5 = _mm_clmulepi64_si128(v_x5, v_kk, (int32_t)(0u)); + v_x5 = _mm_clmulepi64_si128(v_x5, v_kk, (int32_t)(17u)); + v_y6 = _mm_clmulepi64_si128(v_x6, v_kk, (int32_t)(0u)); + v_x6 = _mm_clmulepi64_si128(v_x6, v_kk, (int32_t)(17u)); + v_y7 = _mm_clmulepi64_si128(v_x7, v_kk, (int32_t)(0u)); + v_x7 = _mm_clmulepi64_si128(v_x7, v_kk, (int32_t)(17u)); + v_y0 = _mm_xor_si128(v_y0, _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 0u))); + v_x0 = _mm_xor_si128(v_x0, v_y0); + v_y1 = _mm_xor_si128(v_y1, _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 16u))); + v_x1 = _mm_xor_si128(v_x1, v_y1); + v_y2 = _mm_xor_si128(v_y2, _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 32u))); + v_x2 = _mm_xor_si128(v_x2, v_y2); + v_y3 = _mm_xor_si128(v_y3, _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 48u))); + v_x3 = _mm_xor_si128(v_x3, v_y3); + v_y4 = _mm_xor_si128(v_y4, _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 64u))); + v_x4 = _mm_xor_si128(v_x4, v_y4); + v_y5 = _mm_xor_si128(v_y5, _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 80u))); + v_x5 = _mm_xor_si128(v_x5, v_y5); + v_y6 = _mm_xor_si128(v_y6, _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 96u))); + v_x6 = _mm_xor_si128(v_x6, v_y6); + v_y7 = _mm_xor_si128(v_y7, _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 112u))); + v_x7 = _mm_xor_si128(v_x7, v_y7); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 128u); + } + v_kk = _mm_set_epi32((int32_t)(0u), (int32_t)(3433693342u), (int32_t)(0u), (int32_t)(2926088593u)); + v_y0 = _mm_clmulepi64_si128(v_x0, v_kk, (int32_t)(0u)); + v_x0 = _mm_clmulepi64_si128(v_x0, v_kk, (int32_t)(17u)); + v_y2 = _mm_clmulepi64_si128(v_x2, v_kk, (int32_t)(0u)); + v_x2 = _mm_clmulepi64_si128(v_x2, v_kk, (int32_t)(17u)); + v_y4 = _mm_clmulepi64_si128(v_x4, v_kk, (int32_t)(0u)); + v_x4 = _mm_clmulepi64_si128(v_x4, v_kk, (int32_t)(17u)); + v_y6 = _mm_clmulepi64_si128(v_x6, v_kk, (int32_t)(0u)); + v_x6 = _mm_clmulepi64_si128(v_x6, v_kk, (int32_t)(17u)); + v_y0 = _mm_xor_si128(v_y0, v_x1); + v_x0 = _mm_xor_si128(v_x0, v_y0); + v_y2 = _mm_xor_si128(v_y2, v_x3); + v_x2 = _mm_xor_si128(v_x2, v_y2); + v_y4 = _mm_xor_si128(v_y4, v_x5); + v_x4 = _mm_xor_si128(v_x4, v_y4); + v_y6 = _mm_xor_si128(v_y6, v_x7); + v_x6 = _mm_xor_si128(v_x6, v_y6); + v_kk = _mm_set_epi32((int32_t)(0u), (int32_t)(2166711591u), (int32_t)(0u), (int32_t)(4057597354u)); + v_y0 = _mm_clmulepi64_si128(v_x0, v_kk, (int32_t)(0u)); + v_x0 = _mm_clmulepi64_si128(v_x0, v_kk, (int32_t)(17u)); + v_y4 = _mm_clmulepi64_si128(v_x4, v_kk, (int32_t)(0u)); + v_x4 = _mm_clmulepi64_si128(v_x4, v_kk, (int32_t)(17u)); + v_y0 = _mm_xor_si128(v_y0, v_x2); + v_x0 = _mm_xor_si128(v_x0, v_y0); + v_y4 = _mm_xor_si128(v_y4, v_x6); + v_x4 = _mm_xor_si128(v_x4, v_y4); + v_kk = _mm_set_epi32((int32_t)(0u), (int32_t)(496309207u), (int32_t)(0u), (int32_t)(2402626965u)); + v_y0 = _mm_clmulepi64_si128(v_x0, v_kk, (int32_t)(0u)); + v_x0 = _mm_clmulepi64_si128(v_x0, v_kk, (int32_t)(17u)); + v_y0 = _mm_xor_si128(v_y0, v_x4); + v_x0 = _mm_xor_si128(v_x0, v_y0); + v_kk = _mm_set_epi32((int32_t)(1u), (int32_t)(3681617473u), (int32_t)(3034951717u), (int32_t)(4144043585u)); + v_s = ((uint32_t)(_mm_extract_epi32(_mm_clmulepi64_si128(_mm_clmulepi64_si128(_mm_cvtsi64_si128((int64_t)(((uint64_t)(_mm_extract_epi64(v_x0, (int32_t)(0u)))))), v_kk, (int32_t)(0u)), v_kk, (int32_t)(16u)), (int32_t)(2u)))); + v_kk = _mm_set_epi32((int32_t)(1u), (int32_t)(3681617473u), (int32_t)(3034951717u), (int32_t)(4144043585u)); + v_s = ((uint32_t)(_mm_extract_epi32(_mm_clmulepi64_si128(_mm_clmulepi64_si128(_mm_cvtsi64_si128((int64_t)((((uint64_t)(_mm_extract_epi64(v_x0, (int32_t)(1u)))) ^ ((uint64_t)(v_s))))), v_kk, (int32_t)(0u)), v_kk, (int32_t)(16u)), (int32_t)(2u)))); + } + while (((uint64_t)(a_x.len)) >= 8u) { + v_kk = _mm_set_epi32((int32_t)(1u), (int32_t)(3681617473u), (int32_t)(3034951717u), (int32_t)(4144043585u)); + v_s = ((uint32_t)(_mm_extract_epi32(_mm_clmulepi64_si128(_mm_clmulepi64_si128(_mm_cvtsi64_si128((int64_t)((wuffs_base__peek_u64le__no_bounds_check(a_x.ptr) ^ ((uint64_t)(v_s))))), v_kk, (int32_t)(0u)), v_kk, (int32_t)(16u)), (int32_t)(2u)))); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 8u); } - v_k = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC32__IEEE_X86_SSE42_K3K4)); - v_y0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(0u)); - v_x0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(17u)); - v_x0 = _mm_xor_si128(v_x0, v_x1); - v_x0 = _mm_xor_si128(v_x0, v_y0); - v_y0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(0u)); - v_x0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(17u)); - v_x0 = _mm_xor_si128(v_x0, v_x2); - v_x0 = _mm_xor_si128(v_x0, v_y0); - v_y0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(0u)); - v_x0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(17u)); - v_x0 = _mm_xor_si128(v_x0, v_x3); - v_x0 = _mm_xor_si128(v_x0, v_y0); - v_x1 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(16u)); - v_x2 = _mm_set_epi32((int32_t)(0u), (int32_t)(4294967295u), (int32_t)(0u), (int32_t)(4294967295u)); - v_x0 = _mm_srli_si128(v_x0, (int32_t)(8u)); - v_x0 = _mm_xor_si128(v_x0, v_x1); - v_k = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC32__IEEE_X86_SSE42_K5ZZ)); - v_x1 = _mm_srli_si128(v_x0, (int32_t)(4u)); - v_x0 = _mm_and_si128(v_x0, v_x2); - v_x0 = _mm_clmulepi64_si128(v_x0, v_k, (int32_t)(0u)); - v_x0 = _mm_xor_si128(v_x0, v_x1); - v_k = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC32__IEEE_X86_SSE42_PXMU)); - v_x1 = _mm_and_si128(v_x0, v_x2); - v_x1 = _mm_clmulepi64_si128(v_x1, v_k, (int32_t)(16u)); - v_x1 = _mm_and_si128(v_x1, v_x2); - v_x1 = _mm_clmulepi64_si128(v_x1, v_k, (int32_t)(0u)); - v_x0 = _mm_xor_si128(v_x0, v_x1); - v_s = ((uint32_t)(_mm_extract_epi32(v_x0, (int32_t)(1u)))); - v_tail_index = (((uint64_t)(a_x.len)) & 18446744073709551552u); - if (v_tail_index < ((uint64_t)(a_x.len))) { - { - wuffs_base__slice_u8 i_slice_p = wuffs_base__slice_u8__subslice_i(a_x, v_tail_index); - v_p.ptr = i_slice_p.ptr; - v_p.len = 1; - uint8_t* i_end0_p = i_slice_p.ptr + i_slice_p.len; - while (v_p.ptr < i_end0_p) { - v_s = (WUFFS_CRC32__IEEE_TABLE[0u][((uint8_t)(((uint8_t)(v_s)) ^ v_p.ptr[0u]))] ^ (v_s >> 8u)); - v_p.ptr += 1; - } - v_p.len = 0; - } + while (((uint64_t)(a_x.len)) > 0u) { + v_s = (WUFFS_CRC32__IEEE_TABLE[0u][((uint8_t)(((uint8_t)(v_s)) ^ a_x.ptr[0u]))] ^ (v_s >> 8u)); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 1u); } self->private_impl.f_state = (4294967295u ^ v_s); return wuffs_base__make_empty_struct(); } -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) // ‼ WUFFS MULTI-FILE SECTION -x86_sse42 #endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__CRC32) @@ -35572,10 +39543,60 @@ WUFFS_CRC64__ECMA_TABLE[8][256] WUFFS_BASE__POTENTIALLY_UNUSED = { }, }; +static const uint8_t +WUFFS_CRC64__ECMA_X86_SSE42_FOLD1[16] WUFFS_BASE__POTENTIALLY_UNUSED = { + 228u, 58u, 57u, 202u, 151u, 212u, 93u, 224u, + 64u, 95u, 135u, 199u, 175u, 149u, 190u, 218u, +}; + +static const uint8_t +WUFFS_CRC64__ECMA_X86_SSE42_FOLD2[16] WUFFS_BASE__POTENTIALLY_UNUSED = { + 68u, 250u, 158u, 138u, 0u, 91u, 9u, 96u, + 81u, 175u, 225u, 15u, 163u, 83u, 230u, 59u, +}; + +static const uint8_t +WUFFS_CRC64__ECMA_X86_SSE42_FOLD4[16] WUFFS_BASE__POTENTIALLY_UNUSED = { + 243u, 65u, 212u, 157u, 187u, 239u, 227u, 106u, + 244u, 45u, 132u, 167u, 84u, 96u, 31u, 8u, +}; + +static const uint8_t +WUFFS_CRC64__ECMA_X86_SSE42_FOLD8[16] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 16u, 204u, 79u, 29u, 215u, 87u, 135u, + 64u, 231u, 61u, 247u, 42u, 107u, 216u, 215u, +}; + +static const uint8_t +WUFFS_CRC64__ECMA_X86_SSE42_MUPX[16] WUFFS_BASE__POTENTIALLY_UNUSED = { + 213u, 99u, 41u, 23u, 108u, 70u, 62u, 156u, + 133u, 30u, 14u, 175u, 43u, 175u, 216u, 146u, +}; + // ---------------- Private Initializer Prototypes // ---------------- Private Function Prototypes +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_crc64__ecma_hasher__up( + wuffs_crc64__ecma_hasher* self, + wuffs_base__slice_u8 a_x); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_crc64__ecma_hasher__up__choosy_default( + wuffs_crc64__ecma_hasher* self, + wuffs_base__slice_u8 a_x); + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_crc64__ecma_hasher__up_x86_sse42( + wuffs_crc64__ecma_hasher* self, + wuffs_base__slice_u8 a_x); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + // ---------------- VTables const wuffs_base__hasher_u64__func_ptrs @@ -35633,6 +39654,8 @@ wuffs_crc64__ecma_hasher__initialize( } } + self->private_impl.choosy_up = &wuffs_crc64__ecma_hasher__up__choosy_default; + self->private_impl.magic = WUFFS_BASE__MAGIC; self->private_impl.vtable_for__wuffs_base__hasher_u64.vtable_name = wuffs_base__hasher_u64__vtable_name; @@ -35644,7 +39667,7 @@ wuffs_crc64__ecma_hasher__initialize( wuffs_crc64__ecma_hasher* wuffs_crc64__ecma_hasher__alloc(void) { wuffs_crc64__ecma_hasher* x = - (wuffs_crc64__ecma_hasher*)(calloc(sizeof(wuffs_crc64__ecma_hasher), 1)); + (wuffs_crc64__ecma_hasher*)(calloc(1, sizeof(wuffs_crc64__ecma_hasher))); if (!x) { return NULL; } @@ -35716,6 +39739,50 @@ wuffs_crc64__ecma_hasher__update( return wuffs_base__make_empty_struct(); } + if (self->private_impl.f_state == 0u) { + self->private_impl.choosy_up = ( +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_crc64__ecma_hasher__up_x86_sse42 : +#endif + self->private_impl.choosy_up); + } + wuffs_crc64__ecma_hasher__up(self, a_x); + return wuffs_base__make_empty_struct(); +} + +// -------- func crc64.ecma_hasher.update_u64 + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_crc64__ecma_hasher__update_u64( + wuffs_crc64__ecma_hasher* self, + wuffs_base__slice_u8 a_x) { + if (!self) { + return 0; + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return 0; + } + + wuffs_crc64__ecma_hasher__update(self, a_x); + return wuffs_crc64__ecma_hasher__checksum_u64(self); +} + +// -------- func crc64.ecma_hasher.up + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_crc64__ecma_hasher__up( + wuffs_crc64__ecma_hasher* self, + wuffs_base__slice_u8 a_x) { + return (*self->private_impl.choosy_up)(self, a_x); +} + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_crc64__ecma_hasher__up__choosy_default( + wuffs_crc64__ecma_hasher* self, + wuffs_base__slice_u8 a_x) { uint64_t v_s = 0; wuffs_base__slice_u8 v_p = {0}; @@ -35724,7 +39791,7 @@ wuffs_crc64__ecma_hasher__update( wuffs_base__slice_u8 i_slice_p = a_x; v_p.ptr = i_slice_p.ptr; v_p.len = 8; - uint8_t* i_end0_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 8) * 8); + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 8) * 8)); while (v_p.ptr < i_end0_p) { v_s ^= ((((uint64_t)(v_p.ptr[0u])) << 0u) | (((uint64_t)(v_p.ptr[1u])) << 8u) | @@ -35745,7 +39812,7 @@ wuffs_crc64__ecma_hasher__update( v_p.ptr += 8; } v_p.len = 1; - uint8_t* i_end1_p = i_slice_p.ptr + i_slice_p.len; + const uint8_t* i_end1_p = wuffs_private_impl__ptr_u8_plus_len(i_slice_p.ptr, i_slice_p.len); while (v_p.ptr < i_end1_p) { v_s = (WUFFS_CRC64__ECMA_TABLE[0u][((uint8_t)(((uint8_t)(v_s)) ^ v_p.ptr[0u]))] ^ (v_s >> 8u)); v_p.ptr += 1; @@ -35756,24 +39823,6 @@ wuffs_crc64__ecma_hasher__update( return wuffs_base__make_empty_struct(); } -// -------- func crc64.ecma_hasher.update_u64 - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_crc64__ecma_hasher__update_u64( - wuffs_crc64__ecma_hasher* self, - wuffs_base__slice_u8 a_x) { - if (!self) { - return 0; - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return 0; - } - - wuffs_crc64__ecma_hasher__update(self, a_x); - return wuffs_crc64__ecma_hasher__checksum_u64(self); -} - // -------- func crc64.ecma_hasher.checksum_u64 WUFFS_BASE__GENERATED_C_CODE @@ -35791,6 +39840,140 @@ wuffs_crc64__ecma_hasher__checksum_u64( return self->private_impl.f_state; } +// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 +// -------- func crc64.ecma_hasher.up_x86_sse42 + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_crc64__ecma_hasher__up_x86_sse42( + wuffs_crc64__ecma_hasher* self, + wuffs_base__slice_u8 a_x) { + uint64_t v_s = 0; + wuffs_base__slice_u8 v_p = {0}; + uint8_t v_buf[48] = {0}; + __m128i v_xa = {0}; + __m128i v_xb = {0}; + __m128i v_xc = {0}; + __m128i v_xd = {0}; + __m128i v_xe = {0}; + __m128i v_xf = {0}; + __m128i v_xg = {0}; + __m128i v_xh = {0}; + __m128i v_mu1 = {0}; + __m128i v_mu2 = {0}; + __m128i v_mu4 = {0}; + __m128i v_mu8 = {0}; + __m128i v_mupx = {0}; + + v_s = (18446744073709551615u ^ self->private_impl.f_state); + while ((((uint64_t)(a_x.len)) > 0u) && ((15u & ((uint32_t)(0xFFFu & (uintptr_t)(a_x.ptr)))) != 0u)) { + v_s = (WUFFS_CRC64__ECMA_TABLE[0u][((uint8_t)(((uint8_t)(v_s)) ^ a_x.ptr[0u]))] ^ (v_s >> 8u)); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 1u); + } + do { + do { + if (((uint64_t)(a_x.len)) >= 128u) { + } else if (((uint64_t)(a_x.len)) >= 64u) { + v_xa = _mm_xor_si128(_mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 0u)), _mm_cvtsi64_si128((int64_t)(v_s))); + v_xb = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 16u)); + v_xc = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 32u)); + v_xd = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 48u)); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 64u); + break; + } else if (((uint64_t)(a_x.len)) >= 32u) { + v_xa = _mm_xor_si128(_mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 0u)), _mm_cvtsi64_si128((int64_t)(v_s))); + v_xb = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 16u)); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 32u); + goto label__chain2__break; + } else { + { + wuffs_base__slice_u8 i_slice_p = a_x; + v_p.ptr = i_slice_p.ptr; + v_p.len = 1; + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(i_slice_p.ptr, i_slice_p.len); + while (v_p.ptr < i_end0_p) { + v_s = (WUFFS_CRC64__ECMA_TABLE[0u][((uint8_t)(((uint8_t)(v_s)) ^ v_p.ptr[0u]))] ^ (v_s >> 8u)); + v_p.ptr += 1; + } + v_p.len = 0; + } + self->private_impl.f_state = (18446744073709551615u ^ v_s); + return wuffs_base__make_empty_struct(); + } + v_xa = _mm_xor_si128(_mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 0u)), _mm_cvtsi64_si128((int64_t)(v_s))); + v_xb = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 16u)); + v_xc = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 32u)); + v_xd = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 48u)); + v_xe = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 64u)); + v_xf = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 80u)); + v_xg = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 96u)); + v_xh = _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 112u)); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 128u); + v_mu8 = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC64__ECMA_X86_SSE42_FOLD8)); + while (((uint64_t)(a_x.len)) >= 128u) { + v_xa = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xa, v_mu8, (int32_t)(0u)), _mm_clmulepi64_si128(v_xa, v_mu8, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 0u))); + v_xb = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xb, v_mu8, (int32_t)(0u)), _mm_clmulepi64_si128(v_xb, v_mu8, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 16u))); + v_xc = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xc, v_mu8, (int32_t)(0u)), _mm_clmulepi64_si128(v_xc, v_mu8, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 32u))); + v_xd = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xd, v_mu8, (int32_t)(0u)), _mm_clmulepi64_si128(v_xd, v_mu8, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 48u))); + v_xe = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xe, v_mu8, (int32_t)(0u)), _mm_clmulepi64_si128(v_xe, v_mu8, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 64u))); + v_xf = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xf, v_mu8, (int32_t)(0u)), _mm_clmulepi64_si128(v_xf, v_mu8, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 80u))); + v_xg = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xg, v_mu8, (int32_t)(0u)), _mm_clmulepi64_si128(v_xg, v_mu8, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 96u))); + v_xh = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xh, v_mu8, (int32_t)(0u)), _mm_clmulepi64_si128(v_xh, v_mu8, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 112u))); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 128u); + } + v_mu4 = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC64__ECMA_X86_SSE42_FOLD4)); + v_xa = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xa, v_mu4, (int32_t)(0u)), _mm_clmulepi64_si128(v_xa, v_mu4, (int32_t)(17u))), v_xe); + v_xb = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xb, v_mu4, (int32_t)(0u)), _mm_clmulepi64_si128(v_xb, v_mu4, (int32_t)(17u))), v_xf); + v_xc = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xc, v_mu4, (int32_t)(0u)), _mm_clmulepi64_si128(v_xc, v_mu4, (int32_t)(17u))), v_xg); + v_xd = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xd, v_mu4, (int32_t)(0u)), _mm_clmulepi64_si128(v_xd, v_mu4, (int32_t)(17u))), v_xh); + if (((uint64_t)(a_x.len)) > 64u) { + v_xa = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xa, v_mu4, (int32_t)(0u)), _mm_clmulepi64_si128(v_xa, v_mu4, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 0u))); + v_xb = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xb, v_mu4, (int32_t)(0u)), _mm_clmulepi64_si128(v_xb, v_mu4, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 16u))); + v_xc = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xc, v_mu4, (int32_t)(0u)), _mm_clmulepi64_si128(v_xc, v_mu4, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 32u))); + v_xd = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xd, v_mu4, (int32_t)(0u)), _mm_clmulepi64_si128(v_xd, v_mu4, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 48u))); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 64u); + } + } while (0); + v_mu2 = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC64__ECMA_X86_SSE42_FOLD2)); + v_xa = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xa, v_mu2, (int32_t)(0u)), _mm_clmulepi64_si128(v_xa, v_mu2, (int32_t)(17u))), v_xc); + v_xb = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xb, v_mu2, (int32_t)(0u)), _mm_clmulepi64_si128(v_xb, v_mu2, (int32_t)(17u))), v_xd); + if (((uint64_t)(a_x.len)) > 32u) { + v_xa = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xa, v_mu2, (int32_t)(0u)), _mm_clmulepi64_si128(v_xa, v_mu2, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 0u))); + v_xb = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xb, v_mu2, (int32_t)(0u)), _mm_clmulepi64_si128(v_xb, v_mu2, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 16u))); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 32u); + } + } while (0); + label__chain2__break:; + v_mu1 = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC64__ECMA_X86_SSE42_FOLD1)); + v_xa = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xa, v_mu1, (int32_t)(0u)), _mm_clmulepi64_si128(v_xa, v_mu1, (int32_t)(17u))), v_xb); + if (((uint64_t)(a_x.len)) > 24u) { + v_xa = _mm_xor_si128(_mm_xor_si128(_mm_clmulepi64_si128(v_xa, v_mu1, (int32_t)(0u)), _mm_clmulepi64_si128(v_xa, v_mu1, (int32_t)(17u))), _mm_lddqu_si128((const __m128i*)(const void*)(a_x.ptr + 0u))); + a_x = wuffs_base__slice_u8__subslice_i(a_x, 16u); + if (((uint64_t)(a_x.len)) > 24u) { + return wuffs_base__make_empty_struct(); + } + } + _mm_storeu_si128((__m128i*)(void*)(v_buf + (24u - ((uint64_t)(a_x.len)))), v_xa); + wuffs_private_impl__slice_u8__copy_from_slice(wuffs_base__make_slice_u8_ij(v_buf, ((24u - ((uint64_t)(a_x.len))) + 16u), 48), a_x); + v_mu2 = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC64__ECMA_X86_SSE42_FOLD2)); + v_xa = _mm_lddqu_si128((const __m128i*)(const void*)(v_buf + 0u)); + v_xb = _mm_lddqu_si128((const __m128i*)(const void*)(v_buf + 16u)); + v_xc = _mm_lddqu_si128((const __m128i*)(const void*)(v_buf + 32u)); + v_xd = _mm_xor_si128(_mm_clmulepi64_si128(v_xa, v_mu2, (int32_t)(0u)), _mm_clmulepi64_si128(v_xa, v_mu2, (int32_t)(17u))); + v_xe = _mm_xor_si128(_mm_clmulepi64_si128(v_xb, v_mu1, (int32_t)(0u)), _mm_clmulepi64_si128(v_xb, v_mu1, (int32_t)(17u))); + v_xa = _mm_xor_si128(v_xd, _mm_xor_si128(v_xe, v_xc)); + v_mupx = _mm_lddqu_si128((const __m128i*)(const void*)(WUFFS_CRC64__ECMA_X86_SSE42_MUPX)); + v_xb = _mm_clmulepi64_si128(v_xa, v_mupx, (int32_t)(0u)); + v_xc = _mm_clmulepi64_si128(v_xb, v_mupx, (int32_t)(16u)); + v_s = ((uint64_t)(_mm_extract_epi64(_mm_xor_si128(_mm_xor_si128(v_xc, _mm_slli_si128(v_xb, (int32_t)(8u))), v_xa), (int32_t)(1u)))); + self->private_impl.f_state = (18446744073709551615u ^ v_s); + return wuffs_base__make_empty_struct(); +} +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 + #endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__CRC64) #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__DEFLATE) @@ -35927,14 +40110,14 @@ wuffs_deflate__decoder__init_huff( uint32_t a_n_codes1, uint32_t a_base_symbol); -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status wuffs_deflate__decoder__decode_huffman_bmi2( wuffs_deflate__decoder* self, wuffs_base__io_buffer* a_dst, wuffs_base__io_buffer* a_src); -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status @@ -36035,7 +40218,7 @@ wuffs_deflate__decoder__initialize( wuffs_deflate__decoder* wuffs_deflate__decoder__alloc(void) { wuffs_deflate__decoder* x = - (wuffs_deflate__decoder*)(calloc(sizeof(wuffs_deflate__decoder), 1)); + (wuffs_deflate__decoder*)(calloc(1, sizeof(wuffs_deflate__decoder))); if (!x) { return NULL; } @@ -36268,7 +40451,7 @@ wuffs_deflate__decoder__do_transform_io( WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; self->private_impl.choosy_decode_huffman_fast64 = ( -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) wuffs_base__cpu_arch__have_x86_bmi2() ? &wuffs_deflate__decoder__decode_huffman_bmi2 : #endif self->private_impl.choosy_decode_huffman_fast64); @@ -37070,98 +41253,572 @@ wuffs_deflate__decoder__init_huff( return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); } } - v_prev_cl = v_cl; - v_key = v_code; - if (v_cl > 9u) { - v_cl -= 9u; - v_redirect_key = ((v_key >> v_cl) & 511u); - v_key = ((v_key) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(v_cl)); - if (v_prev_redirect_key != v_redirect_key) { - v_prev_redirect_key = v_redirect_key; - v_remaining = (((uint32_t)(1u)) << v_cl); - v_j = v_prev_cl; - while (v_j <= 15u) { - if (v_remaining <= ((uint32_t)(v_counts[v_j]))) { - break; - } - v_remaining -= ((uint32_t)(v_counts[v_j])); - if (v_remaining > 1073741824u) { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - } - v_remaining <<= 1u; - v_j += 1u; - } - if ((v_j <= 9u) || (15u < v_j)) { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - } - v_j -= 9u; - v_initial_high_bits = (((uint32_t)(1u)) << v_j); - v_top = v_next_top; - if ((v_top + (((uint32_t)(1u)) << v_j)) > 1024u) { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - } - v_next_top = (v_top + (((uint32_t)(1u)) << v_j)); - v_redirect_key = (((uint32_t)(WUFFS_DEFLATE__REVERSE8[(v_redirect_key >> 1u)])) | ((v_redirect_key & 1u) << 8u)); - self->private_data.f_huffs[a_which][v_redirect_key] = (268435465u | (v_top << 8u) | (v_j << 4u)); + v_prev_cl = v_cl; + v_key = v_code; + if (v_cl > 9u) { + v_cl -= 9u; + v_redirect_key = ((v_key >> v_cl) & 511u); + v_key = ((v_key) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(v_cl)); + if (v_prev_redirect_key != v_redirect_key) { + v_prev_redirect_key = v_redirect_key; + v_remaining = (((uint32_t)(1u)) << v_cl); + v_j = v_prev_cl; + while (v_j <= 15u) { + if (v_remaining <= ((uint32_t)(v_counts[v_j]))) { + break; + } + v_remaining -= ((uint32_t)(v_counts[v_j])); + if (v_remaining > 1073741824u) { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + } + v_remaining <<= 1u; + v_j += 1u; + } + if ((v_j <= 9u) || (15u < v_j)) { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + } + v_j -= 9u; + v_initial_high_bits = (((uint32_t)(1u)) << v_j); + v_top = v_next_top; + if ((v_top + (((uint32_t)(1u)) << v_j)) > 1024u) { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + } + v_next_top = (v_top + (((uint32_t)(1u)) << v_j)); + v_redirect_key = (((uint32_t)(WUFFS_DEFLATE__REVERSE8[(v_redirect_key >> 1u)])) | ((v_redirect_key & 1u) << 8u)); + self->private_data.f_huffs[a_which][v_redirect_key] = (268435465u | (v_top << 8u) | (v_j << 4u)); + } + } + if ((v_key >= 512u) || (v_counts[v_prev_cl] <= 0u)) { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + } +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_counts[v_prev_cl] -= 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_reversed_key = (((uint32_t)(WUFFS_DEFLATE__REVERSE8[(v_key >> 1u)])) | ((v_key & 1u) << 8u)); + v_reversed_key >>= (9u - v_cl); + v_symbol = ((uint32_t)(v_symbols[v_i])); + if (v_symbol == 256u) { + v_value = (536870912u | v_cl); + } else if ((v_symbol < 256u) && (a_which == 0u)) { + v_value = (2147483648u | (v_symbol << 8u) | v_cl); + } else if (v_symbol >= a_base_symbol) { + v_symbol -= a_base_symbol; + if (a_which == 0u) { + v_value = (WUFFS_DEFLATE__LCODE_MAGIC_NUMBERS[(v_symbol & 31u)] | v_cl); + } else { + v_value = (WUFFS_DEFLATE__DCODE_MAGIC_NUMBERS[(v_symbol & 31u)] | v_cl); + } + } else { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + } + v_high_bits = v_initial_high_bits; + v_delta = (((uint32_t)(1u)) << v_cl); + while (v_high_bits >= v_delta) { + v_high_bits -= v_delta; + if ((v_top + ((v_high_bits | v_reversed_key) & 511u)) >= 1024u) { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + } + self->private_data.f_huffs[a_which][(v_top + ((v_high_bits | v_reversed_key) & 511u))] = v_value; + } + v_i += 1u; + if (v_i >= v_n_symbols) { + break; + } + v_code += 1u; + if (v_code >= 32768u) { + return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + } + } + return wuffs_base__make_status(NULL); +} + +// ‼ WUFFS MULTI-FILE SECTION +x86_bmi2 +// -------- func deflate.decoder.decode_huffman_bmi2 + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("bmi2") +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_deflate__decoder__decode_huffman_bmi2( + wuffs_deflate__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint64_t v_bits = 0; + uint32_t v_n_bits = 0; + uint32_t v_table_entry = 0; + uint32_t v_table_entry_n_bits = 0; + uint64_t v_lmask = 0; + uint64_t v_dmask = 0; + uint32_t v_redir_top = 0; + uint32_t v_redir_mask = 0; + uint32_t v_length = 0; + uint32_t v_dist_minus_1 = 0; + uint32_t v_hlen = 0; + uint32_t v_hdist = 0; + uint32_t v_hdist_adjustment = 0; + + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7u)) != 0u)) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); + goto exit; + } + v_bits = ((uint64_t)(self->private_impl.f_bits)); + v_n_bits = self->private_impl.f_n_bits; + v_lmask = ((((uint64_t)(1u)) << self->private_impl.f_n_huffs_bits[0u]) - 1u); + v_dmask = ((((uint64_t)(1u)) << self->private_impl.f_n_huffs_bits[1u]) - 1u); + if (self->private_impl.f_transformed_history_count < (a_dst ? a_dst->meta.pos : 0u)) { + status = wuffs_base__make_status(wuffs_base__error__bad_i_o_position); + goto exit; + } + v_hdist_adjustment = ((uint32_t)((self->private_impl.f_transformed_history_count - (a_dst ? a_dst->meta.pos : 0u)))); + label__loop__continue:; + while ((((uint64_t)(io2_a_dst - iop_a_dst)) >= 266u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 8u)) { + v_bits |= ((uint64_t)(wuffs_base__peek_u64le__no_bounds_check(iop_a_src) << (v_n_bits & 63u))); + iop_a_src += ((63u - (v_n_bits & 63u)) >> 3u); + v_n_bits |= 56u; + v_table_entry = self->private_data.f_huffs[0u][(v_bits & v_lmask)]; + v_table_entry_n_bits = (v_table_entry & 15u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + if ((v_table_entry >> 31u) != 0u) { + (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)((v_table_entry >> 8u)))), iop_a_dst += 1); + continue; + } else if ((v_table_entry >> 30u) != 0u) { + } else if ((v_table_entry >> 29u) != 0u) { + self->private_impl.f_end_of_block = true; + break; + } else if ((v_table_entry >> 28u) != 0u) { + v_redir_top = ((v_table_entry >> 8u) & 65535u); + v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); + v_table_entry = self->private_data.f_huffs[0u][((v_redir_top + (((uint32_t)(v_bits)) & v_redir_mask)) & 1023u)]; + v_table_entry_n_bits = (v_table_entry & 15u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + if ((v_table_entry >> 31u) != 0u) { + (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)((v_table_entry >> 8u)))), iop_a_dst += 1); + continue; + } else if ((v_table_entry >> 30u) != 0u) { + } else if ((v_table_entry >> 29u) != 0u) { + self->private_impl.f_end_of_block = true; + break; + } else if ((v_table_entry >> 28u) != 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; + } else if ((v_table_entry >> 27u) != 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; + } + } else if ((v_table_entry >> 27u) != 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; + } + v_length = (((v_table_entry >> 8u) & 255u) + 3u); + v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); + if (v_table_entry_n_bits > 0u) { + v_length = (((v_length + 253u + ((uint32_t)(((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U64(v_table_entry_n_bits))))) & 255u) + 3u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + } + v_table_entry = self->private_data.f_huffs[1u][(v_bits & v_dmask)]; + v_table_entry_n_bits = (v_table_entry & 15u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + if ((v_table_entry >> 28u) == 1u) { + v_redir_top = ((v_table_entry >> 8u) & 65535u); + v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); + v_table_entry = self->private_data.f_huffs[1u][((v_redir_top + (((uint32_t)(v_bits)) & v_redir_mask)) & 1023u)]; + v_table_entry_n_bits = (v_table_entry & 15u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + } + if ((v_table_entry >> 24u) != 64u) { + if ((v_table_entry >> 24u) == 8u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + goto exit; + } + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; + } + v_dist_minus_1 = ((v_table_entry >> 8u) & 32767u); + v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); + v_dist_minus_1 = ((v_dist_minus_1 + ((uint32_t)(((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U64(v_table_entry_n_bits))))) & 32767u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + do { + if (((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) { + v_hlen = 0u; + v_hdist = ((uint32_t)((((uint64_t)((v_dist_minus_1 + 1u))) - ((uint64_t)(iop_a_dst - io0_a_dst))))); + if (v_length > v_hdist) { + v_length -= v_hdist; + v_hlen = v_hdist; + } else { + v_hlen = v_length; + v_length = 0u; + } + v_hdist += v_hdist_adjustment; + if (self->private_impl.f_history_index < v_hdist) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_distance); + goto exit; + } + wuffs_private_impl__io_writer__limited_copy_u32_from_slice( + &iop_a_dst, io2_a_dst,v_hlen, wuffs_base__make_slice_u8_ij(self->private_data.f_history, ((self->private_impl.f_history_index - v_hdist) & 32767u), 33025)); + if (v_length == 0u) { + goto label__loop__continue; + } + if ((((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) || (((uint64_t)(v_length)) > ((uint64_t)(io2_a_dst - iop_a_dst))) || (((uint64_t)((v_length + 8u))) > ((uint64_t)(io2_a_dst - iop_a_dst)))) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_distance); + goto exit; + } + } + if ((v_dist_minus_1 + 1u) >= 8u) { + wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast( + &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); + } else if ((v_dist_minus_1 + 1u) == 1u) { + wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_distance_1_fast( + &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); + } else { + wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast( + &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); + } + } while (0); + } + if (v_n_bits > 63u) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); + goto exit; + } + while (v_n_bits >= 8u) { + v_n_bits -= 8u; + if (iop_a_src > io1_a_src) { + iop_a_src--; + } else { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_i_o); + goto exit; + } + } + self->private_impl.f_bits = ((uint32_t)((v_bits & ((((uint64_t)(1u)) << v_n_bits) - 1u)))); + self->private_impl.f_n_bits = v_n_bits; + if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> self->private_impl.f_n_bits) != 0u)) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); + goto exit; + } + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) +// ‼ WUFFS MULTI-FILE SECTION -x86_bmi2 + +// -------- func deflate.decoder.decode_huffman_fast32 + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_deflate__decoder__decode_huffman_fast32( + wuffs_deflate__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_bits = 0; + uint32_t v_n_bits = 0; + uint32_t v_table_entry = 0; + uint32_t v_table_entry_n_bits = 0; + uint32_t v_lmask = 0; + uint32_t v_dmask = 0; + uint32_t v_redir_top = 0; + uint32_t v_redir_mask = 0; + uint32_t v_length = 0; + uint32_t v_dist_minus_1 = 0; + uint32_t v_hlen = 0; + uint32_t v_hdist = 0; + uint32_t v_hdist_adjustment = 0; + + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7u)) != 0u)) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); + goto exit; + } + v_bits = self->private_impl.f_bits; + v_n_bits = self->private_impl.f_n_bits; + v_lmask = ((((uint32_t)(1u)) << self->private_impl.f_n_huffs_bits[0u]) - 1u); + v_dmask = ((((uint32_t)(1u)) << self->private_impl.f_n_huffs_bits[1u]) - 1u); + if (self->private_impl.f_transformed_history_count < (a_dst ? a_dst->meta.pos : 0u)) { + status = wuffs_base__make_status(wuffs_base__error__bad_i_o_position); + goto exit; + } + v_hdist_adjustment = ((uint32_t)((self->private_impl.f_transformed_history_count - (a_dst ? a_dst->meta.pos : 0u)))); + label__loop__continue:; + while ((((uint64_t)(io2_a_dst - iop_a_dst)) >= 266u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 12u)) { + if (v_n_bits < 15u) { + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + } else { + } + v_table_entry = self->private_data.f_huffs[0u][(v_bits & v_lmask)]; + v_table_entry_n_bits = (v_table_entry & 15u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + if ((v_table_entry >> 31u) != 0u) { + (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)((v_table_entry >> 8u)))), iop_a_dst += 1); + continue; + } else if ((v_table_entry >> 30u) != 0u) { + } else if ((v_table_entry >> 29u) != 0u) { + self->private_impl.f_end_of_block = true; + break; + } else if ((v_table_entry >> 28u) != 0u) { + if (v_n_bits < 15u) { + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + } else { + } + v_redir_top = ((v_table_entry >> 8u) & 65535u); + v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); + v_table_entry = self->private_data.f_huffs[0u][((v_redir_top + (v_bits & v_redir_mask)) & 1023u)]; + v_table_entry_n_bits = (v_table_entry & 15u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + if ((v_table_entry >> 31u) != 0u) { + (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)((v_table_entry >> 8u)))), iop_a_dst += 1); + continue; + } else if ((v_table_entry >> 30u) != 0u) { + } else if ((v_table_entry >> 29u) != 0u) { + self->private_impl.f_end_of_block = true; + break; + } else if ((v_table_entry >> 28u) != 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; + } else if ((v_table_entry >> 27u) != 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; + } + } else if ((v_table_entry >> 27u) != 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; + } + v_length = (((v_table_entry >> 8u) & 255u) + 3u); + v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); + if (v_table_entry_n_bits > 0u) { + if (v_n_bits < 15u) { + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + } else { } + v_length = (((v_length + 253u + ((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(v_table_entry_n_bits))) & 255u) + 3u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + } else { } - if ((v_key >= 512u) || (v_counts[v_prev_cl] <= 0u)) { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + if (v_n_bits < 15u) { + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + } else { } -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_counts[v_prev_cl] -= 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - v_reversed_key = (((uint32_t)(WUFFS_DEFLATE__REVERSE8[(v_key >> 1u)])) | ((v_key & 1u) << 8u)); - v_reversed_key >>= (9u - v_cl); - v_symbol = ((uint32_t)(v_symbols[v_i])); - if (v_symbol == 256u) { - v_value = (536870912u | v_cl); - } else if ((v_symbol < 256u) && (a_which == 0u)) { - v_value = (2147483648u | (v_symbol << 8u) | v_cl); - } else if (v_symbol >= a_base_symbol) { - v_symbol -= a_base_symbol; - if (a_which == 0u) { - v_value = (WUFFS_DEFLATE__LCODE_MAGIC_NUMBERS[(v_symbol & 31u)] | v_cl); + v_table_entry = self->private_data.f_huffs[1u][(v_bits & v_dmask)]; + v_table_entry_n_bits = (v_table_entry & 15u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + if ((v_table_entry >> 28u) == 1u) { + if (v_n_bits < 15u) { + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; } else { - v_value = (WUFFS_DEFLATE__DCODE_MAGIC_NUMBERS[(v_symbol & 31u)] | v_cl); } + v_redir_top = ((v_table_entry >> 8u) & 65535u); + v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); + v_table_entry = self->private_data.f_huffs[1u][((v_redir_top + (v_bits & v_redir_mask)) & 1023u)]; + v_table_entry_n_bits = (v_table_entry & 15u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; } else { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); } - v_high_bits = v_initial_high_bits; - v_delta = (((uint32_t)(1u)) << v_cl); - while (v_high_bits >= v_delta) { - v_high_bits -= v_delta; - if ((v_top + ((v_high_bits | v_reversed_key) & 511u)) >= 1024u) { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + if ((v_table_entry >> 24u) != 64u) { + if ((v_table_entry >> 24u) == 8u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + goto exit; } - self->private_data.f_huffs[a_which][(v_top + ((v_high_bits | v_reversed_key) & 511u))] = v_value; + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; } - v_i += 1u; - if (v_i >= v_n_symbols) { - break; + v_dist_minus_1 = ((v_table_entry >> 8u) & 32767u); + v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); + if (v_n_bits < v_table_entry_n_bits) { + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; } - v_code += 1u; - if (v_code >= 32768u) { - return wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + v_dist_minus_1 = ((v_dist_minus_1 + ((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(v_table_entry_n_bits))) & 32767u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + do { + if (((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) { + v_hlen = 0u; + v_hdist = ((uint32_t)((((uint64_t)((v_dist_minus_1 + 1u))) - ((uint64_t)(iop_a_dst - io0_a_dst))))); + if (v_length > v_hdist) { + v_length -= v_hdist; + v_hlen = v_hdist; + } else { + v_hlen = v_length; + v_length = 0u; + } + v_hdist += v_hdist_adjustment; + if (self->private_impl.f_history_index < v_hdist) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_distance); + goto exit; + } + wuffs_private_impl__io_writer__limited_copy_u32_from_slice( + &iop_a_dst, io2_a_dst,v_hlen, wuffs_base__make_slice_u8_ij(self->private_data.f_history, ((self->private_impl.f_history_index - v_hdist) & 32767u), 33025)); + if (v_length == 0u) { + goto label__loop__continue; + } + if ((((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) || (((uint64_t)(v_length)) > ((uint64_t)(io2_a_dst - iop_a_dst))) || (((uint64_t)((v_length + 8u))) > ((uint64_t)(io2_a_dst - iop_a_dst)))) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_distance); + goto exit; + } + } + if ((v_dist_minus_1 + 1u) >= 8u) { + wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast( + &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); + } else { + wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast( + &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); + } + } while (0); + } + while (v_n_bits >= 8u) { + v_n_bits -= 8u; + if (iop_a_src > io1_a_src) { + iop_a_src--; + } else { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_i_o); + goto exit; } } - return wuffs_base__make_status(NULL); + self->private_impl.f_bits = (v_bits & ((((uint32_t)(1u)) << v_n_bits) - 1u)); + self->private_impl.f_n_bits = v_n_bits; + if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> self->private_impl.f_n_bits) != 0u)) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); + goto exit; + } + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; } -// ‼ WUFFS MULTI-FILE SECTION +x86_bmi2 -// -------- func deflate.decoder.decode_huffman_bmi2 +// -------- func deflate.decoder.decode_huffman_fast64 -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("bmi2") WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_deflate__decoder__decode_huffman_bmi2( +wuffs_deflate__decoder__decode_huffman_fast64( + wuffs_deflate__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src) { + return (*self->private_impl.choosy_decode_huffman_fast64)(self, a_dst, a_src); +} + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_deflate__decoder__decode_huffman_fast64__choosy_default( wuffs_deflate__decoder* self, wuffs_base__io_buffer* a_dst, wuffs_base__io_buffer* a_src) { @@ -37323,37 +41980,367 @@ wuffs_deflate__decoder__decode_huffman_bmi2( goto exit; } } - if ((v_dist_minus_1 + 1u) >= 8u) { - wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast( - &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); - } else if ((v_dist_minus_1 + 1u) == 1u) { - wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_distance_1_fast( - &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); - } else { - wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast( + if ((v_dist_minus_1 + 1u) >= 8u) { + wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast( + &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); + } else if ((v_dist_minus_1 + 1u) == 1u) { + wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_distance_1_fast( + &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); + } else { + wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast( + &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); + } + } while (0); + } + if (v_n_bits > 63u) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); + goto exit; + } + while (v_n_bits >= 8u) { + v_n_bits -= 8u; + if (iop_a_src > io1_a_src) { + iop_a_src--; + } else { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_i_o); + goto exit; + } + } + self->private_impl.f_bits = ((uint32_t)((v_bits & ((((uint64_t)(1u)) << v_n_bits) - 1u)))); + self->private_impl.f_n_bits = v_n_bits; + if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> self->private_impl.f_n_bits) != 0u)) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); + goto exit; + } + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func deflate.decoder.decode_huffman_slow + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_deflate__decoder__decode_huffman_slow( + wuffs_deflate__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_bits = 0; + uint32_t v_n_bits = 0; + uint32_t v_table_entry = 0; + uint32_t v_table_entry_n_bits = 0; + uint32_t v_lmask = 0; + uint32_t v_dmask = 0; + uint32_t v_b0 = 0; + uint32_t v_redir_top = 0; + uint32_t v_redir_mask = 0; + uint32_t v_b1 = 0; + uint32_t v_length = 0; + uint32_t v_b2 = 0; + uint32_t v_b3 = 0; + uint32_t v_b4 = 0; + uint32_t v_dist_minus_1 = 0; + uint32_t v_b5 = 0; + uint32_t v_n_copied = 0; + uint32_t v_hlen = 0; + uint32_t v_hdist = 0; + + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_huffman_slow; + if (coro_susp_point) { + v_bits = self->private_data.s_decode_huffman_slow.v_bits; + v_n_bits = self->private_data.s_decode_huffman_slow.v_n_bits; + v_table_entry_n_bits = self->private_data.s_decode_huffman_slow.v_table_entry_n_bits; + v_lmask = self->private_data.s_decode_huffman_slow.v_lmask; + v_dmask = self->private_data.s_decode_huffman_slow.v_dmask; + v_redir_top = self->private_data.s_decode_huffman_slow.v_redir_top; + v_redir_mask = self->private_data.s_decode_huffman_slow.v_redir_mask; + v_length = self->private_data.s_decode_huffman_slow.v_length; + v_dist_minus_1 = self->private_data.s_decode_huffman_slow.v_dist_minus_1; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7u)) != 0u)) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); + goto exit; + } + v_bits = self->private_impl.f_bits; + v_n_bits = self->private_impl.f_n_bits; + v_lmask = ((((uint32_t)(1u)) << self->private_impl.f_n_huffs_bits[0u]) - 1u); + v_dmask = ((((uint32_t)(1u)) << self->private_impl.f_n_huffs_bits[1u]) - 1u); + label__loop__continue:; + while ( ! (self->private_impl.p_decode_huffman_slow != 0)) { + while (true) { + v_table_entry = self->private_data.f_huffs[0u][(v_bits & v_lmask)]; + v_table_entry_n_bits = (v_table_entry & 15u); + if (v_n_bits >= v_table_entry_n_bits) { + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + break; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint32_t t_0 = *iop_a_src++; + v_b0 = t_0; + } + v_bits |= (v_b0 << v_n_bits); + v_n_bits += 8u; + } + if ((v_table_entry >> 31u) != 0u) { + self->private_data.s_decode_huffman_slow.scratch = ((uint8_t)((v_table_entry >> 8u))); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (iop_a_dst == io2_a_dst) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + goto suspend; + } + *iop_a_dst++ = ((uint8_t)(self->private_data.s_decode_huffman_slow.scratch)); + continue; + } else if ((v_table_entry >> 30u) != 0u) { + } else if ((v_table_entry >> 29u) != 0u) { + self->private_impl.f_end_of_block = true; + break; + } else if ((v_table_entry >> 28u) != 0u) { + v_redir_top = ((v_table_entry >> 8u) & 65535u); + v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); + while (true) { + v_table_entry = self->private_data.f_huffs[0u][((v_redir_top + (v_bits & v_redir_mask)) & 1023u)]; + v_table_entry_n_bits = (v_table_entry & 15u); + if (v_n_bits >= v_table_entry_n_bits) { + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + break; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint32_t t_1 = *iop_a_src++; + v_b1 = t_1; + } + v_bits |= (v_b1 << v_n_bits); + v_n_bits += 8u; + } + if ((v_table_entry >> 31u) != 0u) { + self->private_data.s_decode_huffman_slow.scratch = ((uint8_t)((v_table_entry >> 8u))); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (iop_a_dst == io2_a_dst) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + goto suspend; + } + *iop_a_dst++ = ((uint8_t)(self->private_data.s_decode_huffman_slow.scratch)); + continue; + } else if ((v_table_entry >> 30u) != 0u) { + } else if ((v_table_entry >> 29u) != 0u) { + self->private_impl.f_end_of_block = true; + break; + } else if ((v_table_entry >> 28u) != 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; + } else if ((v_table_entry >> 27u) != 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; + } + } else if ((v_table_entry >> 27u) != 0u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; + } + v_length = (((v_table_entry >> 8u) & 255u) + 3u); + v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); + if (v_table_entry_n_bits > 0u) { + while (v_n_bits < v_table_entry_n_bits) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint32_t t_2 = *iop_a_src++; + v_b2 = t_2; + } + v_bits |= (v_b2 << v_n_bits); + v_n_bits += 8u; + } + v_length = (((v_length + 253u + ((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(v_table_entry_n_bits))) & 255u) + 3u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + } + while (true) { + v_table_entry = self->private_data.f_huffs[1u][(v_bits & v_dmask)]; + v_table_entry_n_bits = (v_table_entry & 15u); + if (v_n_bits >= v_table_entry_n_bits) { + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + break; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint32_t t_3 = *iop_a_src++; + v_b3 = t_3; + } + v_bits |= (v_b3 << v_n_bits); + v_n_bits += 8u; + } + if ((v_table_entry >> 28u) == 1u) { + v_redir_top = ((v_table_entry >> 8u) & 65535u); + v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); + while (true) { + v_table_entry = self->private_data.f_huffs[1u][((v_redir_top + (v_bits & v_redir_mask)) & 1023u)]; + v_table_entry_n_bits = (v_table_entry & 15u); + if (v_n_bits >= v_table_entry_n_bits) { + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + break; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint32_t t_4 = *iop_a_src++; + v_b4 = t_4; + } + v_bits |= (v_b4 << v_n_bits); + v_n_bits += 8u; + } + } + if ((v_table_entry >> 24u) != 64u) { + if ((v_table_entry >> 24u) == 8u) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + goto exit; + } + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + goto exit; + } + v_dist_minus_1 = ((v_table_entry >> 8u) & 32767u); + v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); + if (v_table_entry_n_bits > 0u) { + while (v_n_bits < v_table_entry_n_bits) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint32_t t_5 = *iop_a_src++; + v_b5 = t_5; + } + v_bits |= (v_b5 << v_n_bits); + v_n_bits += 8u; + } + v_dist_minus_1 = ((v_dist_minus_1 + ((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(v_table_entry_n_bits))) & 32767u); + v_bits >>= v_table_entry_n_bits; + v_n_bits -= v_table_entry_n_bits; + } + while (true) { + if (((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) { + v_hdist = ((uint32_t)((((uint64_t)((v_dist_minus_1 + 1u))) - ((uint64_t)(iop_a_dst - io0_a_dst))))); + if (v_hdist < v_length) { + v_hlen = v_hdist; + } else { + v_hlen = v_length; + } + v_hdist += ((uint32_t)(((uint64_t)(self->private_impl.f_transformed_history_count - (a_dst ? a_dst->meta.pos : 0u))))); + if (self->private_impl.f_history_index < v_hdist) { + status = wuffs_base__make_status(wuffs_deflate__error__bad_distance); + goto exit; + } + v_n_copied = wuffs_private_impl__io_writer__limited_copy_u32_from_slice( + &iop_a_dst, io2_a_dst,v_hlen, wuffs_base__make_slice_u8_ij(self->private_data.f_history, ((self->private_impl.f_history_index - v_hdist) & 32767u), 33025)); + if (v_n_copied < v_hlen) { + v_length -= v_n_copied; + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); + continue; + } + v_length -= v_hlen; + if (v_length == 0u) { + goto label__loop__continue; + } + } + v_n_copied = wuffs_private_impl__io_writer__limited_copy_u32_from_history( &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); + if (v_length <= v_n_copied) { + goto label__loop__continue; + } + v_length -= v_n_copied; + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(10); } - } while (0); - } - if (v_n_bits > 63u) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); - goto exit; - } - while (v_n_bits >= 8u) { - v_n_bits -= 8u; - if (iop_a_src > io1_a_src) { - iop_a_src--; - } else { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_i_o); + } + self->private_impl.f_bits = v_bits; + self->private_impl.f_n_bits = v_n_bits; + if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7u)) != 0u)) { + status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); goto exit; } - } - self->private_impl.f_bits = ((uint32_t)((v_bits & ((((uint64_t)(1u)) << v_n_bits) - 1u)))); - self->private_impl.f_n_bits = v_n_bits; - if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> self->private_impl.f_n_bits) != 0u)) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); + + ok: + self->private_impl.p_decode_huffman_slow = 0; goto exit; } + + goto suspend; + suspend: + self->private_impl.p_decode_huffman_slow = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_huffman_slow.v_bits = v_bits; + self->private_data.s_decode_huffman_slow.v_n_bits = v_n_bits; + self->private_data.s_decode_huffman_slow.v_table_entry_n_bits = v_table_entry_n_bits; + self->private_data.s_decode_huffman_slow.v_lmask = v_lmask; + self->private_data.s_decode_huffman_slow.v_dmask = v_dmask; + self->private_data.s_decode_huffman_slow.v_redir_top = v_redir_top; + self->private_data.s_decode_huffman_slow.v_redir_mask = v_redir_mask; + self->private_data.s_decode_huffman_slow.v_length = v_length; + self->private_data.s_decode_huffman_slow.v_dist_minus_1 = v_dist_minus_1; + goto exit; exit: if (a_dst && a_dst->data.ptr) { @@ -37365,309 +42352,552 @@ wuffs_deflate__decoder__decode_huffman_bmi2( return status; } -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -// ‼ WUFFS MULTI-FILE SECTION -x86_bmi2 -// -------- func deflate.decoder.decode_huffman_fast32 +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__DEFLATE) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ETC2) + +// ---------------- Status Codes Implementations + +const char wuffs_etc2__error__bad_header[] = "#etc2: bad header"; +const char wuffs_etc2__error__truncated_input[] = "#etc2: truncated input"; +const char wuffs_etc2__error__unsupported_etc2_file[] = "#etc2: unsupported ETC2 file"; + +// ---------------- Private Consts + +static const uint32_t +WUFFS_ETC2__DIFFS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 1u, 2u, 3u, 4294967292u, 4294967293u, 4294967294u, 4294967295u, +}; + +static const uint32_t +WUFFS_ETC2__MODIFIERS[16][4] WUFFS_BASE__POTENTIALLY_UNUSED = { + { + 2u, 8u, 4294967294u, 4294967288u, + }, { + 5u, 17u, 4294967291u, 4294967279u, + }, { + 9u, 29u, 4294967287u, 4294967267u, + }, { + 13u, 42u, 4294967283u, 4294967254u, + }, { + 18u, 60u, 4294967278u, 4294967236u, + }, { + 24u, 80u, 4294967272u, 4294967216u, + }, { + 33u, 106u, 4294967263u, 4294967190u, + }, { + 47u, 183u, 4294967249u, 4294967113u, + }, + { + 0u, 8u, 0u, 4294967288u, + }, { + 0u, 17u, 0u, 4294967279u, + }, { + 0u, 29u, 0u, 4294967267u, + }, { + 0u, 42u, 0u, 4294967254u, + }, { + 0u, 60u, 0u, 4294967236u, + }, { + 0u, 80u, 0u, 4294967216u, + }, { + 0u, 106u, 0u, 4294967190u, + }, { + 0u, 183u, 0u, 4294967113u, + }, +}; + +static const uint8_t +WUFFS_ETC2__T_H_MODIFIERS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 3u, 6u, 11u, 16u, 23u, 32u, 41u, 64u, +}; + +static const uint32_t +WUFFS_ETC2__ALPHA_MODIFIERS[16][8] WUFFS_BASE__POTENTIALLY_UNUSED = { + { + 4294967293u, 4294967290u, 4294967287u, 4294967281u, 2u, 5u, 8u, 14u, + }, { + 4294967293u, 4294967289u, 4294967286u, 4294967283u, 2u, 6u, 9u, 12u, + }, { + 4294967294u, 4294967291u, 4294967288u, 4294967283u, 1u, 4u, 7u, 12u, + }, { + 4294967294u, 4294967292u, 4294967290u, 4294967283u, 1u, 3u, 5u, 12u, + }, { + 4294967293u, 4294967290u, 4294967288u, 4294967284u, 2u, 5u, 7u, 11u, + }, { + 4294967293u, 4294967289u, 4294967287u, 4294967285u, 2u, 6u, 8u, 10u, + }, { + 4294967292u, 4294967289u, 4294967288u, 4294967285u, 3u, 6u, 7u, 10u, + }, { + 4294967293u, 4294967291u, 4294967288u, 4294967285u, 2u, 4u, 7u, 10u, + }, + { + 4294967294u, 4294967290u, 4294967288u, 4294967286u, 1u, 5u, 7u, 9u, + }, { + 4294967294u, 4294967291u, 4294967288u, 4294967286u, 1u, 4u, 7u, 9u, + }, { + 4294967294u, 4294967292u, 4294967288u, 4294967286u, 1u, 3u, 7u, 9u, + }, { + 4294967294u, 4294967291u, 4294967289u, 4294967286u, 1u, 4u, 6u, 9u, + }, { + 4294967293u, 4294967292u, 4294967289u, 4294967286u, 2u, 3u, 6u, 9u, + }, { + 4294967295u, 4294967294u, 4294967293u, 4294967286u, 0u, 1u, 2u, 9u, + }, { + 4294967292u, 4294967290u, 4294967288u, 4294967287u, 3u, 5u, 7u, 8u, + }, { + 4294967293u, 4294967291u, 4294967289u, 4294967287u, 2u, 4u, 6u, 8u, + }, +}; + +static const uint8_t +WUFFS_ETC2__CLAMP[1024] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 1u, 2u, 3u, 4u, 5u, 6u, 7u, + 8u, 9u, 10u, 11u, 12u, 13u, 14u, 15u, + 16u, 17u, 18u, 19u, 20u, 21u, 22u, 23u, + 24u, 25u, 26u, 27u, 28u, 29u, 30u, 31u, + 32u, 33u, 34u, 35u, 36u, 37u, 38u, 39u, + 40u, 41u, 42u, 43u, 44u, 45u, 46u, 47u, + 48u, 49u, 50u, 51u, 52u, 53u, 54u, 55u, + 56u, 57u, 58u, 59u, 60u, 61u, 62u, 63u, + 64u, 65u, 66u, 67u, 68u, 69u, 70u, 71u, + 72u, 73u, 74u, 75u, 76u, 77u, 78u, 79u, + 80u, 81u, 82u, 83u, 84u, 85u, 86u, 87u, + 88u, 89u, 90u, 91u, 92u, 93u, 94u, 95u, + 96u, 97u, 98u, 99u, 100u, 101u, 102u, 103u, + 104u, 105u, 106u, 107u, 108u, 109u, 110u, 111u, + 112u, 113u, 114u, 115u, 116u, 117u, 118u, 119u, + 120u, 121u, 122u, 123u, 124u, 125u, 126u, 127u, + 128u, 129u, 130u, 131u, 132u, 133u, 134u, 135u, + 136u, 137u, 138u, 139u, 140u, 141u, 142u, 143u, + 144u, 145u, 146u, 147u, 148u, 149u, 150u, 151u, + 152u, 153u, 154u, 155u, 156u, 157u, 158u, 159u, + 160u, 161u, 162u, 163u, 164u, 165u, 166u, 167u, + 168u, 169u, 170u, 171u, 172u, 173u, 174u, 175u, + 176u, 177u, 178u, 179u, 180u, 181u, 182u, 183u, + 184u, 185u, 186u, 187u, 188u, 189u, 190u, 191u, + 192u, 193u, 194u, 195u, 196u, 197u, 198u, 199u, + 200u, 201u, 202u, 203u, 204u, 205u, 206u, 207u, + 208u, 209u, 210u, 211u, 212u, 213u, 214u, 215u, + 216u, 217u, 218u, 219u, 220u, 221u, 222u, 223u, + 224u, 225u, 226u, 227u, 228u, 229u, 230u, 231u, + 232u, 233u, 234u, 235u, 236u, 237u, 238u, 239u, + 240u, 241u, 242u, 243u, 244u, 245u, 246u, 247u, + 248u, 249u, 250u, 251u, 252u, 253u, 254u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 255u, 255u, 255u, 255u, 255u, 255u, 255u, 255u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, +}; + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_deflate__decoder__decode_huffman_fast32( - wuffs_deflate__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); +wuffs_etc2__decoder__do_decode_image_config( + wuffs_etc2__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); - uint32_t v_bits = 0; - uint32_t v_n_bits = 0; - uint32_t v_table_entry = 0; - uint32_t v_table_entry_n_bits = 0; - uint32_t v_lmask = 0; - uint32_t v_dmask = 0; - uint32_t v_redir_top = 0; - uint32_t v_redir_mask = 0; - uint32_t v_length = 0; - uint32_t v_dist_minus_1 = 0; - uint32_t v_hlen = 0; - uint32_t v_hdist = 0; - uint32_t v_hdist_adjustment = 0; +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_etc2__decoder__do_decode_frame_config( + wuffs_etc2__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); - uint8_t* iop_a_dst = NULL; - uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; - } - } - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_etc2__decoder__do_decode_frame( + wuffs_etc2__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); - if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7u)) != 0u)) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); - goto exit; - } - v_bits = self->private_impl.f_bits; - v_n_bits = self->private_impl.f_n_bits; - v_lmask = ((((uint32_t)(1u)) << self->private_impl.f_n_huffs_bits[0u]) - 1u); - v_dmask = ((((uint32_t)(1u)) << self->private_impl.f_n_huffs_bits[1u]) - 1u); - if (self->private_impl.f_transformed_history_count < (a_dst ? a_dst->meta.pos : 0u)) { - status = wuffs_base__make_status(wuffs_base__error__bad_i_o_position); - goto exit; - } - v_hdist_adjustment = ((uint32_t)((self->private_impl.f_transformed_history_count - (a_dst ? a_dst->meta.pos : 0u)))); - label__loop__continue:; - while ((((uint64_t)(io2_a_dst - iop_a_dst)) >= 266u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 12u)) { - if (v_n_bits < 15u) { - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - } else { - } - v_table_entry = self->private_data.f_huffs[0u][(v_bits & v_lmask)]; - v_table_entry_n_bits = (v_table_entry & 15u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - if ((v_table_entry >> 31u) != 0u) { - (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)((v_table_entry >> 8u)))), iop_a_dst += 1); - continue; - } else if ((v_table_entry >> 30u) != 0u) { - } else if ((v_table_entry >> 29u) != 0u) { - self->private_impl.f_end_of_block = true; - break; - } else if ((v_table_entry >> 28u) != 0u) { - if (v_n_bits < 15u) { - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - } else { - } - v_redir_top = ((v_table_entry >> 8u) & 65535u); - v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); - v_table_entry = self->private_data.f_huffs[0u][((v_redir_top + (v_bits & v_redir_mask)) & 1023u)]; - v_table_entry_n_bits = (v_table_entry & 15u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - if ((v_table_entry >> 31u) != 0u) { - (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)((v_table_entry >> 8u)))), iop_a_dst += 1); - continue; - } else if ((v_table_entry >> 30u) != 0u) { - } else if ((v_table_entry >> 29u) != 0u) { - self->private_impl.f_end_of_block = true; - break; - } else if ((v_table_entry >> 28u) != 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; - } else if ((v_table_entry >> 27u) != 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); - goto exit; - } else { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; - } - } else if ((v_table_entry >> 27u) != 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); - goto exit; - } else { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; - } - v_length = (((v_table_entry >> 8u) & 255u) + 3u); - v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); - if (v_table_entry_n_bits > 0u) { - if (v_n_bits < 15u) { - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - } else { - } - v_length = (((v_length + 253u + ((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(v_table_entry_n_bits))) & 255u) + 3u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - } else { - } - if (v_n_bits < 15u) { - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - } else { - } - v_table_entry = self->private_data.f_huffs[1u][(v_bits & v_dmask)]; - v_table_entry_n_bits = (v_table_entry & 15u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - if ((v_table_entry >> 28u) == 1u) { - if (v_n_bits < 15u) { - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - } else { - } - v_redir_top = ((v_table_entry >> 8u) & 65535u); - v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); - v_table_entry = self->private_data.f_huffs[1u][((v_redir_top + (v_bits & v_redir_mask)) & 1023u)]; - v_table_entry_n_bits = (v_table_entry & 15u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - } else { - } - if ((v_table_entry >> 24u) != 64u) { - if ((v_table_entry >> 24u) == 8u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); - goto exit; - } - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; - } - v_dist_minus_1 = ((v_table_entry >> 8u) & 32767u); - v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); - if (v_n_bits < v_table_entry_n_bits) { - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - } - v_dist_minus_1 = ((v_dist_minus_1 + ((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(v_table_entry_n_bits))) & 32767u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - do { - if (((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) { - v_hlen = 0u; - v_hdist = ((uint32_t)((((uint64_t)((v_dist_minus_1 + 1u))) - ((uint64_t)(iop_a_dst - io0_a_dst))))); - if (v_length > v_hdist) { - v_length -= v_hdist; - v_hlen = v_hdist; - } else { - v_hlen = v_length; - v_length = 0u; - } - v_hdist += v_hdist_adjustment; - if (self->private_impl.f_history_index < v_hdist) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_distance); - goto exit; - } - wuffs_private_impl__io_writer__limited_copy_u32_from_slice( - &iop_a_dst, io2_a_dst,v_hlen, wuffs_base__make_slice_u8_ij(self->private_data.f_history, ((self->private_impl.f_history_index - v_hdist) & 32767u), 33025)); - if (v_length == 0u) { - goto label__loop__continue; - } - if ((((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) || (((uint64_t)(v_length)) > ((uint64_t)(io2_a_dst - iop_a_dst))) || (((uint64_t)((v_length + 8u))) > ((uint64_t)(io2_a_dst - iop_a_dst)))) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_distance); - goto exit; - } - } - if ((v_dist_minus_1 + 1u) >= 8u) { - wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast( - &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); - } else { - wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast( - &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); - } - } while (0); +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_etc2__decoder__from_src_to_colors( + wuffs_etc2__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_etc2__decoder__from_colors_to_buffer( + wuffs_etc2__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_etc2__decoder__decode_t_mode( + wuffs_etc2__decoder* self, + uint64_t a_bits, + uint32_t a_offset, + bool a_transparent); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_etc2__decoder__decode_h_mode( + wuffs_etc2__decoder* self, + uint64_t a_bits, + uint32_t a_offset, + bool a_transparent); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_etc2__decoder__decode_planar_mode( + wuffs_etc2__decoder* self, + uint64_t a_bits, + uint32_t a_offset); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_etc2__decoder__decode_half_block( + wuffs_etc2__decoder* self, + uint32_t a_bits, + uint32_t a_offset, + uint32_t a_which, + uint32_t a_r, + uint32_t a_g, + uint32_t a_b, + bool a_flip, + bool a_transparent, + bool a_second); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_etc2__decoder__from_alphas_to_buffer( + wuffs_etc2__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_etc2__decoder__from_buffer_to_dst( + wuffs_etc2__decoder* self, + wuffs_base__pixel_buffer* a_dst); + +// ---------------- VTables + +const wuffs_base__image_decoder__func_ptrs +wuffs_etc2__decoder__func_ptrs_for__wuffs_base__image_decoder = { + (wuffs_base__status(*)(void*, + wuffs_base__pixel_buffer*, + wuffs_base__io_buffer*, + wuffs_base__pixel_blend, + wuffs_base__slice_u8, + wuffs_base__decode_frame_options*))(&wuffs_etc2__decoder__decode_frame), + (wuffs_base__status(*)(void*, + wuffs_base__frame_config*, + wuffs_base__io_buffer*))(&wuffs_etc2__decoder__decode_frame_config), + (wuffs_base__status(*)(void*, + wuffs_base__image_config*, + wuffs_base__io_buffer*))(&wuffs_etc2__decoder__decode_image_config), + (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_etc2__decoder__frame_dirty_rect), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_etc2__decoder__get_quirk), + (uint32_t(*)(const void*))(&wuffs_etc2__decoder__num_animation_loops), + (uint64_t(*)(const void*))(&wuffs_etc2__decoder__num_decoded_frame_configs), + (uint64_t(*)(const void*))(&wuffs_etc2__decoder__num_decoded_frames), + (wuffs_base__status(*)(void*, + uint64_t, + uint64_t))(&wuffs_etc2__decoder__restart_frame), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_etc2__decoder__set_quirk), + (wuffs_base__empty_struct(*)(void*, + uint32_t, + bool))(&wuffs_etc2__decoder__set_report_metadata), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__more_information*, + wuffs_base__io_buffer*))(&wuffs_etc2__decoder__tell_me_more), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_etc2__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_etc2__decoder__initialize( + wuffs_etc2__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); } - while (v_n_bits >= 8u) { - v_n_bits -= 8u; - if (iop_a_src > io1_a_src) { - iop_a_src--; + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; } else { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_i_o); - goto exit; + memset(&(self->private_impl), 0, sizeof(self->private_impl)); } } - self->private_impl.f_bits = (v_bits & ((((uint32_t)(1u)) << v_n_bits) - 1u)); - self->private_impl.f_n_bits = v_n_bits; - if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> self->private_impl.f_n_bits) != 0u)) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); - goto exit; + + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = + wuffs_base__image_decoder__vtable_name; + self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = + (const void*)(&wuffs_etc2__decoder__func_ptrs_for__wuffs_base__image_decoder); + return wuffs_base__make_status(NULL); +} + +wuffs_etc2__decoder* +wuffs_etc2__decoder__alloc(void) { + wuffs_etc2__decoder* x = + (wuffs_etc2__decoder*)(calloc(1, sizeof(wuffs_etc2__decoder))); + if (!x) { + return NULL; } - goto exit; - exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + if (wuffs_etc2__decoder__initialize( + x, sizeof(wuffs_etc2__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; } - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + return x; +} + +size_t +sizeof__wuffs_etc2__decoder(void) { + return sizeof(wuffs_etc2__decoder); +} + +// ---------------- Function Implementations + +// -------- func etc2.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_etc2__decoder__get_quirk( + const wuffs_etc2__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - return status; + return 0u; } -// -------- func deflate.decoder.decode_huffman_fast64 +// -------- func etc2.decoder.set_quirk WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_deflate__decoder__decode_huffman_fast64( - wuffs_deflate__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src) { - return (*self->private_impl.choosy_decode_huffman_fast64)(self, a_dst, a_src); +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_etc2__decoder__set_quirk( + wuffs_etc2__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + return wuffs_base__make_status(wuffs_base__error__unsupported_option); } +// -------- func etc2.decoder.decode_image_config + WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_deflate__decoder__decode_huffman_fast64__choosy_default( - wuffs_deflate__decoder* self, - wuffs_base__io_buffer* a_dst, +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_etc2__decoder__decode_image_config( + wuffs_etc2__decoder* self, + wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - uint64_t v_bits = 0; - uint32_t v_n_bits = 0; - uint32_t v_table_entry = 0; - uint32_t v_table_entry_n_bits = 0; - uint64_t v_lmask = 0; - uint64_t v_dmask = 0; - uint32_t v_redir_top = 0; - uint32_t v_redir_mask = 0; - uint32_t v_length = 0; - uint32_t v_dist_minus_1 = 0; - uint32_t v_hlen = 0; - uint32_t v_hdist = 0; - uint32_t v_hdist_adjustment = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint8_t* iop_a_dst = NULL; - uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; + uint32_t coro_susp_point = self->private_impl.p_decode_image_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_etc2__decoder__do_decode_image_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_etc2__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } + + ok: + self->private_impl.p_decode_image_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; } + return status; +} + +// -------- func etc2.decoder.do_decode_image_config + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_etc2__decoder__do_decode_image_config( + wuffs_etc2__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_c32 = 0; + uint16_t v_rounded_up_width = 0; + uint16_t v_rounded_up_height = 0; + const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -37679,160 +42909,246 @@ wuffs_deflate__decoder__decode_huffman_fast64__choosy_default( io2_a_src = io0_a_src + a_src->meta.wi; } - if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7u)) != 0u)) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); - goto exit; - } - v_bits = ((uint64_t)(self->private_impl.f_bits)); - v_n_bits = self->private_impl.f_n_bits; - v_lmask = ((((uint64_t)(1u)) << self->private_impl.f_n_huffs_bits[0u]) - 1u); - v_dmask = ((((uint64_t)(1u)) << self->private_impl.f_n_huffs_bits[1u]) - 1u); - if (self->private_impl.f_transformed_history_count < (a_dst ? a_dst->meta.pos : 0u)) { - status = wuffs_base__make_status(wuffs_base__error__bad_i_o_position); - goto exit; + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; + if (coro_susp_point) { + v_rounded_up_width = self->private_data.s_do_decode_image_config.v_rounded_up_width; + v_rounded_up_height = self->private_data.s_do_decode_image_config.v_rounded_up_height; } - v_hdist_adjustment = ((uint32_t)((self->private_impl.f_transformed_history_count - (a_dst ? a_dst->meta.pos : 0u)))); - label__loop__continue:; - while ((((uint64_t)(io2_a_dst - iop_a_dst)) >= 266u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 8u)) { - v_bits |= ((uint64_t)(wuffs_base__peek_u64le__no_bounds_check(iop_a_src) << (v_n_bits & 63u))); - iop_a_src += ((63u - (v_n_bits & 63u)) >> 3u); - v_n_bits |= 56u; - v_table_entry = self->private_data.f_huffs[0u][(v_bits & v_lmask)]; - v_table_entry_n_bits = (v_table_entry & 15u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - if ((v_table_entry >> 31u) != 0u) { - (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)((v_table_entry >> 8u)))), iop_a_dst += 1); - continue; - } else if ((v_table_entry >> 30u) != 0u) { - } else if ((v_table_entry >> 29u) != 0u) { - self->private_impl.f_end_of_block = true; - break; - } else if ((v_table_entry >> 28u) != 0u) { - v_redir_top = ((v_table_entry >> 8u) & 65535u); - v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); - v_table_entry = self->private_data.f_huffs[0u][((v_redir_top + (((uint32_t)(v_bits)) & v_redir_mask)) & 1023u)]; - v_table_entry_n_bits = (v_table_entry & 15u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - if ((v_table_entry >> 31u) != 0u) { - (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)((v_table_entry >> 8u)))), iop_a_dst += 1); - continue; - } else if ((v_table_entry >> 30u) != 0u) { - } else if ((v_table_entry >> 29u) != 0u) { - self->private_impl.f_end_of_block = true; - break; - } else if ((v_table_entry >> 28u) != 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; - } else if ((v_table_entry >> 27u) != 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); - goto exit; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence != 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; } else { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; + } } - } else if ((v_table_entry >> 27u) != 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + v_c32 = t_0; + } + if (v_c32 != 541936464u) { + status = wuffs_base__make_status(wuffs_etc2__error__bad_header); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 24) { + t_1 = ((uint32_t)(*scratch)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; + } + } + v_c32 = t_1; + } + if ((v_c32 == 12337u) || (v_c32 == 16789554u) || (v_c32 == 151007282u)) { + self->private_impl.f_pixfmt = 2415954056u; + } else if ((v_c32 == 50343986u) || (v_c32 == 167784498u)) { + self->private_impl.f_pixfmt = 2164295816u; + } else if ((v_c32 == 67121202u) || (v_c32 == 184561714u)) { + self->private_impl.f_pixfmt = 2197850248u; + } else if ((v_c32 & 65535u) == 12338u) { + status = wuffs_base__make_status(wuffs_etc2__error__unsupported_etc2_file); goto exit; } else { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + status = wuffs_base__make_status(wuffs_etc2__error__bad_header); goto exit; } - v_length = (((v_table_entry >> 8u) & 255u) + 3u); - v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); - if (v_table_entry_n_bits > 0u) { - v_length = (((v_length + 253u + ((uint32_t)(((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U64(v_table_entry_n_bits))))) & 255u) + 3u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; + self->private_impl.f_srgb = ((v_c32 >> 24u) >= 9u); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + uint16_t t_2; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_2 = wuffs_base__peek_u16be__no_bounds_check(iop_a_src); + iop_a_src += 2; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_2); + if (num_bits_2 == 8) { + t_2 = ((uint16_t)(*scratch >> 48)); + break; + } + num_bits_2 += 8u; + *scratch |= ((uint64_t)(num_bits_2)); + } + } + v_rounded_up_width = t_2; } - v_table_entry = self->private_data.f_huffs[1u][(v_bits & v_dmask)]; - v_table_entry_n_bits = (v_table_entry & 15u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - if ((v_table_entry >> 28u) == 1u) { - v_redir_top = ((v_table_entry >> 8u) & 65535u); - v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); - v_table_entry = self->private_data.f_huffs[1u][((v_redir_top + (((uint32_t)(v_bits)) & v_redir_mask)) & 1023u)]; - v_table_entry_n_bits = (v_table_entry & 15u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + uint16_t t_3; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_3 = wuffs_base__peek_u16be__no_bounds_check(iop_a_src); + iop_a_src += 2; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_3 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_3); + if (num_bits_3 == 8) { + t_3 = ((uint16_t)(*scratch >> 48)); + break; + } + num_bits_3 += 8u; + *scratch |= ((uint64_t)(num_bits_3)); + } + } + v_rounded_up_height = t_3; } - if ((v_table_entry >> 24u) != 64u) { - if ((v_table_entry >> 24u) == 8u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); - goto exit; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + uint32_t t_4; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_4 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_4 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_4); + if (num_bits_4 == 8) { + t_4 = ((uint32_t)(*scratch >> 48)); + break; + } + num_bits_4 += 8u; + *scratch |= ((uint64_t)(num_bits_4)); + } } - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + v_c32 = t_4; + } + if (((v_c32 + 3u) & 4294967292u) != ((uint32_t)(v_rounded_up_width))) { + status = wuffs_base__make_status(wuffs_etc2__error__bad_header); goto exit; } - v_dist_minus_1 = ((v_table_entry >> 8u) & 32767u); - v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); - v_dist_minus_1 = ((v_dist_minus_1 + ((uint32_t)(((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U64(v_table_entry_n_bits))))) & 32767u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - do { - if (((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) { - v_hlen = 0u; - v_hdist = ((uint32_t)((((uint64_t)((v_dist_minus_1 + 1u))) - ((uint64_t)(iop_a_dst - io0_a_dst))))); - if (v_length > v_hdist) { - v_length -= v_hdist; - v_hlen = v_hdist; - } else { - v_hlen = v_length; - v_length = 0u; - } - v_hdist += v_hdist_adjustment; - if (self->private_impl.f_history_index < v_hdist) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_distance); - goto exit; - } - wuffs_private_impl__io_writer__limited_copy_u32_from_slice( - &iop_a_dst, io2_a_dst,v_hlen, wuffs_base__make_slice_u8_ij(self->private_data.f_history, ((self->private_impl.f_history_index - v_hdist) & 32767u), 33025)); - if (v_length == 0u) { - goto label__loop__continue; - } - if ((((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) || (((uint64_t)(v_length)) > ((uint64_t)(io2_a_dst - iop_a_dst))) || (((uint64_t)((v_length + 8u))) > ((uint64_t)(io2_a_dst - iop_a_dst)))) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_distance); - goto exit; + self->private_impl.f_width = v_c32; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); + uint32_t t_5; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_5 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_5 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_5); + if (num_bits_5 == 8) { + t_5 = ((uint32_t)(*scratch >> 48)); + break; + } + num_bits_5 += 8u; + *scratch |= ((uint64_t)(num_bits_5)); } } - if ((v_dist_minus_1 + 1u) >= 8u) { - wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast( - &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); - } else if ((v_dist_minus_1 + 1u) == 1u) { - wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_distance_1_fast( - &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); - } else { - wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast( - &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); - } - } while (0); - } - if (v_n_bits > 63u) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); - goto exit; - } - while (v_n_bits >= 8u) { - v_n_bits -= 8u; - if (iop_a_src > io1_a_src) { - iop_a_src--; - } else { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_i_o); + v_c32 = t_5; + } + if (((v_c32 + 3u) & 4294967292u) != ((uint32_t)(v_rounded_up_height))) { + status = wuffs_base__make_status(wuffs_etc2__error__bad_header); goto exit; } - } - self->private_impl.f_bits = ((uint32_t)((v_bits & ((((uint64_t)(1u)) << v_n_bits) - 1u)))); - self->private_impl.f_n_bits = v_n_bits; - if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> self->private_impl.f_n_bits) != 0u)) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); + self->private_impl.f_height = v_c32; + if (a_dst != NULL) { + wuffs_base__image_config__set( + a_dst, + self->private_impl.f_pixfmt, + 0u, + self->private_impl.f_width, + self->private_impl.f_height, + 16u, + (self->private_impl.f_pixfmt == 2415954056u)); + } + self->private_impl.f_call_sequence = 32u; + + goto ok; + ok: + self->private_impl.p_do_decode_image_config = 0; goto exit; } + + goto suspend; + suspend: + self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_decode_image_config.v_rounded_up_width = v_rounded_up_width; + self->private_data.s_do_decode_image_config.v_rounded_up_height = v_rounded_up_height; + goto exit; exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } if (a_src && a_src->data.ptr) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } @@ -37840,49 +43156,82 @@ wuffs_deflate__decoder__decode_huffman_fast64__choosy_default( return status; } -// -------- func deflate.decoder.decode_huffman_slow +// -------- func etc2.decoder.decode_frame_config WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_deflate__decoder__decode_huffman_slow( - wuffs_deflate__decoder* self, - wuffs_base__io_buffer* a_dst, +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_etc2__decoder__decode_frame_config( + wuffs_etc2__decoder* self, + wuffs_base__frame_config* a_dst, wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 2)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t v_bits = 0; - uint32_t v_n_bits = 0; - uint32_t v_table_entry = 0; - uint32_t v_table_entry_n_bits = 0; - uint32_t v_lmask = 0; - uint32_t v_dmask = 0; - uint32_t v_b0 = 0; - uint32_t v_redir_top = 0; - uint32_t v_redir_mask = 0; - uint32_t v_b1 = 0; - uint32_t v_length = 0; - uint32_t v_b2 = 0; - uint32_t v_b3 = 0; - uint32_t v_b4 = 0; - uint32_t v_dist_minus_1 = 0; - uint32_t v_b5 = 0; - uint32_t v_n_copied = 0; - uint32_t v_hlen = 0; - uint32_t v_hdist = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint8_t* iop_a_dst = NULL; - uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; + uint32_t coro_susp_point = self->private_impl.p_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_etc2__decoder__do_decode_frame_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_etc2__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } + + ok: + self->private_impl.p_decode_frame_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; } + return status; +} + +// -------- func etc2.decoder.do_decode_frame_config + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_etc2__decoder__do_decode_frame_config( + wuffs_etc2__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -37894,275 +43243,350 @@ wuffs_deflate__decoder__decode_huffman_slow( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_huffman_slow; - if (coro_susp_point) { - v_bits = self->private_data.s_decode_huffman_slow.v_bits; - v_n_bits = self->private_data.s_decode_huffman_slow.v_n_bits; - v_table_entry_n_bits = self->private_data.s_decode_huffman_slow.v_table_entry_n_bits; - v_lmask = self->private_data.s_decode_huffman_slow.v_lmask; - v_dmask = self->private_data.s_decode_huffman_slow.v_dmask; - v_redir_top = self->private_data.s_decode_huffman_slow.v_redir_top; - v_redir_mask = self->private_data.s_decode_huffman_slow.v_redir_mask; - v_length = self->private_data.s_decode_huffman_slow.v_length; - v_dist_minus_1 = self->private_data.s_decode_huffman_slow.v_dist_minus_1; + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence == 32u) { + } else if (self->private_impl.f_call_sequence < 32u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_etc2__decoder__do_decode_image_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else if (self->private_impl.f_call_sequence == 40u) { + if (16u != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_restart); + goto exit; + } + } else if (self->private_impl.f_call_sequence == 64u) { + self->private_impl.f_call_sequence = 96u; + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + if (a_dst != NULL) { + wuffs_base__frame_config__set( + a_dst, + wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height), + ((wuffs_base__flicks)(0u)), + 0u, + 16u, + 0u, + (self->private_impl.f_pixfmt == 2415954056u), + false, + 4278190080u); + } + self->private_impl.f_call_sequence = 64u; + + ok: + self->private_impl.p_do_decode_frame_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func etc2.decoder.decode_frame + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_etc2__decoder__decode_frame( + wuffs_etc2__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 3)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_frame; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7u)) != 0u)) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); - goto exit; + while (true) { + { + wuffs_base__status t_0 = wuffs_etc2__decoder__do_decode_frame(self, + a_dst, + a_src, + a_blend, + a_workbuf, + a_opts); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_etc2__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } - v_bits = self->private_impl.f_bits; - v_n_bits = self->private_impl.f_n_bits; - v_lmask = ((((uint32_t)(1u)) << self->private_impl.f_n_huffs_bits[0u]) - 1u); - v_dmask = ((((uint32_t)(1u)) << self->private_impl.f_n_huffs_bits[1u]) - 1u); - label__loop__continue:; - while ( ! (self->private_impl.p_decode_huffman_slow != 0)) { - while (true) { - v_table_entry = self->private_data.f_huffs[0u][(v_bits & v_lmask)]; - v_table_entry_n_bits = (v_table_entry & 15u); - if (v_n_bits >= v_table_entry_n_bits) { - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - break; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint32_t t_0 = *iop_a_src++; - v_b0 = t_0; - } - v_bits |= (v_b0 << v_n_bits); - v_n_bits += 8u; + + ok: + self->private_impl.p_decode_frame = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func etc2.decoder.do_decode_frame + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_etc2__decoder__do_decode_frame( + wuffs_etc2__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_remaining = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; + if (coro_susp_point) { + v_remaining = self->private_data.s_do_decode_frame.v_remaining; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence == 64u) { + } else if (self->private_impl.f_call_sequence < 64u) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_etc2__decoder__do_decode_frame_config(self, NULL, a_src); + if (status.repr) { + goto suspend; } - if ((v_table_entry >> 31u) != 0u) { - self->private_data.s_decode_huffman_slow.scratch = ((uint8_t)((v_table_entry >> 8u))); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (iop_a_dst == io2_a_dst) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - goto suspend; - } - *iop_a_dst++ = ((uint8_t)(self->private_data.s_decode_huffman_slow.scratch)); - continue; - } else if ((v_table_entry >> 30u) != 0u) { - } else if ((v_table_entry >> 29u) != 0u) { - self->private_impl.f_end_of_block = true; - break; - } else if ((v_table_entry >> 28u) != 0u) { - v_redir_top = ((v_table_entry >> 8u) & 65535u); - v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); - while (true) { - v_table_entry = self->private_data.f_huffs[0u][((v_redir_top + (v_bits & v_redir_mask)) & 1023u)]; - v_table_entry_n_bits = (v_table_entry & 15u); - if (v_n_bits >= v_table_entry_n_bits) { - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - break; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint32_t t_1 = *iop_a_src++; - v_b1 = t_1; - } - v_bits |= (v_b1 << v_n_bits); - v_n_bits += 8u; - } - if ((v_table_entry >> 31u) != 0u) { - self->private_data.s_decode_huffman_slow.scratch = ((uint8_t)((v_table_entry >> 8u))); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - if (iop_a_dst == io2_a_dst) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - goto suspend; - } - *iop_a_dst++ = ((uint8_t)(self->private_data.s_decode_huffman_slow.scratch)); - continue; - } else if ((v_table_entry >> 30u) != 0u) { - } else if ((v_table_entry >> 29u) != 0u) { - self->private_impl.f_end_of_block = true; - break; - } else if ((v_table_entry >> 28u) != 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; - } else if ((v_table_entry >> 27u) != 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); - goto exit; - } else { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; - } - } else if ((v_table_entry >> 27u) != 0u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, + wuffs_base__pixel_buffer__pixel_format(a_dst), + wuffs_base__pixel_buffer__palette(a_dst), + wuffs_base__utility__make_pixel_format(self->private_impl.f_pixfmt), + wuffs_base__utility__empty_slice_u8(), + a_blend); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { goto exit; - } else { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); goto exit; } - v_length = (((v_table_entry >> 8u) & 255u) + 3u); - v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); - if (v_table_entry_n_bits > 0u) { - while (v_n_bits < v_table_entry_n_bits) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint32_t t_2 = *iop_a_src++; - v_b2 = t_2; - } - v_bits |= (v_b2 << v_n_bits); - v_n_bits += 8u; - } - v_length = (((v_length + 253u + ((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(v_table_entry_n_bits))) & 255u) + 3u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; + goto ok; + } + self->private_impl.f_dst_x = 0u; + self->private_impl.f_dst_y = 0u; + v_remaining = (((self->private_impl.f_width + 3u) / 4u) * ((self->private_impl.f_height + 3u) / 4u)); + while (v_remaining > 0u) { + self->private_impl.f_num_buffered_blocks = wuffs_base__u32__min(v_remaining, 64u); + if (v_remaining < self->private_impl.f_num_buffered_blocks) { + status = wuffs_base__make_status(wuffs_base__error__too_much_data); + goto exit; } - while (true) { - v_table_entry = self->private_data.f_huffs[1u][(v_bits & v_dmask)]; - v_table_entry_n_bits = (v_table_entry & 15u); - if (v_n_bits >= v_table_entry_n_bits) { - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - break; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint32_t t_3 = *iop_a_src++; - v_b3 = t_3; + v_remaining -= self->private_impl.f_num_buffered_blocks; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + status = wuffs_etc2__decoder__from_src_to_colors(self, a_src); + if (status.repr) { + goto suspend; + } + wuffs_etc2__decoder__from_colors_to_buffer(self); + if (self->private_impl.f_pixfmt == 2164295816u) { + wuffs_etc2__decoder__from_alphas_to_buffer(self); + } + v_status = wuffs_etc2__decoder__from_buffer_to_dst(self, a_dst); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; } - v_bits |= (v_b3 << v_n_bits); - v_n_bits += 8u; + goto ok; } - if ((v_table_entry >> 28u) == 1u) { - v_redir_top = ((v_table_entry >> 8u) & 65535u); - v_redir_mask = ((((uint32_t)(1u)) << ((v_table_entry >> 4u) & 15u)) - 1u); - while (true) { - v_table_entry = self->private_data.f_huffs[1u][((v_redir_top + (v_bits & v_redir_mask)) & 1023u)]; - v_table_entry_n_bits = (v_table_entry & 15u); - if (v_n_bits >= v_table_entry_n_bits) { - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - break; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + } + self->private_impl.f_call_sequence = 96u; + + ok: + self->private_impl.p_do_decode_frame = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_decode_frame.v_remaining = v_remaining; + + goto exit; + exit: + return status; +} + +// -------- func etc2.decoder.from_src_to_colors + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_etc2__decoder__from_src_to_colors( + wuffs_etc2__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_bi = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_from_src_to_colors; + if (coro_susp_point) { + v_bi = self->private_data.s_from_src_to_colors.v_bi; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (v_bi < self->private_impl.f_num_buffered_blocks) { + if (self->private_impl.f_pixfmt == 2164295816u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint64_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_0 = wuffs_base__peek_u64be__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_from_src_to_colors.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_from_src_to_colors.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 56) { + t_0 = ((uint64_t)(*scratch >> 0)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); } - uint32_t t_4 = *iop_a_src++; - v_b4 = t_4; } - v_bits |= (v_b4 << v_n_bits); - v_n_bits += 8u; - } - } - if ((v_table_entry >> 24u) != 64u) { - if ((v_table_entry >> 24u) == 8u) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_huffman_code); - goto exit; + self->private_data.f_alphas[v_bi] = t_0; } - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_huffman_decoder_state); - goto exit; } - v_dist_minus_1 = ((v_table_entry >> 8u) & 32767u); - v_table_entry_n_bits = ((v_table_entry >> 4u) & 15u); - if (v_table_entry_n_bits > 0u) { - while (v_n_bits < v_table_entry_n_bits) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint64_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_1 = wuffs_base__peek_u64be__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_from_src_to_colors.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint32_t t_5 = *iop_a_src++; - v_b5 = t_5; - } - v_bits |= (v_b5 << v_n_bits); - v_n_bits += 8u; - } - v_dist_minus_1 = ((v_dist_minus_1 + ((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(v_table_entry_n_bits))) & 32767u); - v_bits >>= v_table_entry_n_bits; - v_n_bits -= v_table_entry_n_bits; - } - while (true) { - if (((uint64_t)((v_dist_minus_1 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) { - v_hdist = ((uint32_t)((((uint64_t)((v_dist_minus_1 + 1u))) - ((uint64_t)(iop_a_dst - io0_a_dst))))); - if (v_hdist < v_length) { - v_hlen = v_hdist; - } else { - v_hlen = v_length; - } - v_hdist += ((uint32_t)(((uint64_t)(self->private_impl.f_transformed_history_count - (a_dst ? a_dst->meta.pos : 0u))))); - if (self->private_impl.f_history_index < v_hdist) { - status = wuffs_base__make_status(wuffs_deflate__error__bad_distance); - goto exit; - } - v_n_copied = wuffs_private_impl__io_writer__limited_copy_u32_from_slice( - &iop_a_dst, io2_a_dst,v_hlen, wuffs_base__make_slice_u8_ij(self->private_data.f_history, ((self->private_impl.f_history_index - v_hdist) & 32767u), 33025)); - if (v_n_copied < v_hlen) { - v_length -= v_n_copied; - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); - continue; - } - v_length -= v_hlen; - if (v_length == 0u) { - goto label__loop__continue; + uint64_t* scratch = &self->private_data.s_from_src_to_colors.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); + if (num_bits_1 == 56) { + t_1 = ((uint64_t)(*scratch >> 0)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)); } } - v_n_copied = wuffs_private_impl__io_writer__limited_copy_u32_from_history( - &iop_a_dst, io0_a_dst, io2_a_dst, v_length, (v_dist_minus_1 + 1u)); - if (v_length <= v_n_copied) { - goto label__loop__continue; - } - v_length -= v_n_copied; - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(10); + self->private_data.f_colors[v_bi] = t_1; } - } - self->private_impl.f_bits = v_bits; - self->private_impl.f_n_bits = v_n_bits; - if ((self->private_impl.f_n_bits >= 8u) || ((self->private_impl.f_bits >> (self->private_impl.f_n_bits & 7u)) != 0u)) { - status = wuffs_base__make_status(wuffs_deflate__error__internal_error_inconsistent_n_bits); - goto exit; + v_bi += 1u; } + goto ok; ok: - self->private_impl.p_decode_huffman_slow = 0; + self->private_impl.p_from_src_to_colors = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_huffman_slow = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_huffman_slow.v_bits = v_bits; - self->private_data.s_decode_huffman_slow.v_n_bits = v_n_bits; - self->private_data.s_decode_huffman_slow.v_table_entry_n_bits = v_table_entry_n_bits; - self->private_data.s_decode_huffman_slow.v_lmask = v_lmask; - self->private_data.s_decode_huffman_slow.v_dmask = v_dmask; - self->private_data.s_decode_huffman_slow.v_redir_top = v_redir_top; - self->private_data.s_decode_huffman_slow.v_redir_mask = v_redir_mask; - self->private_data.s_decode_huffman_slow.v_length = v_length; - self->private_data.s_decode_huffman_slow.v_dist_minus_1 = v_dist_minus_1; + self->private_impl.p_from_src_to_colors = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_from_src_to_colors.v_bi = v_bi; goto exit; exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } if (a_src && a_src->data.ptr) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } @@ -38170,7 +43594,668 @@ wuffs_deflate__decoder__decode_huffman_slow( return status; } -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__DEFLATE) +// -------- func etc2.decoder.from_colors_to_buffer + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_etc2__decoder__from_colors_to_buffer( + wuffs_etc2__decoder* self) { + uint32_t v_bi = 0; + uint64_t v_color = 0; + uint32_t v_r0 = 0; + uint32_t v_r1 = 0; + uint32_t v_g0 = 0; + uint32_t v_g1 = 0; + uint32_t v_b0 = 0; + uint32_t v_b1 = 0; + bool v_diff = false; + bool v_tran = false; + bool v_flip = false; + + while (v_bi < self->private_impl.f_num_buffered_blocks) { + v_color = self->private_data.f_colors[v_bi]; + v_diff = ((v_color & 8589934592u) != 0u); + v_tran = ( ! v_diff && (self->private_impl.f_pixfmt == 2197850248u)); + if ( ! v_diff && (self->private_impl.f_pixfmt != 2197850248u)) { + v_r0 = ((uint32_t)((15u & (v_color >> 60u)))); + v_r0 = ((v_r0 << 4u) | v_r0); + v_r1 = ((uint32_t)((15u & (v_color >> 56u)))); + v_r1 = ((v_r1 << 4u) | v_r1); + v_g0 = ((uint32_t)((15u & (v_color >> 52u)))); + v_g0 = ((v_g0 << 4u) | v_g0); + v_g1 = ((uint32_t)((15u & (v_color >> 48u)))); + v_g1 = ((v_g1 << 4u) | v_g1); + v_b0 = ((uint32_t)((15u & (v_color >> 44u)))); + v_b0 = ((v_b0 << 4u) | v_b0); + v_b1 = ((uint32_t)((15u & (v_color >> 40u)))); + v_b1 = ((v_b1 << 4u) | v_b1); + } else { + v_r0 = ((uint32_t)((31u & (v_color >> 59u)))); + v_r1 = ((uint32_t)(v_r0 + WUFFS_ETC2__DIFFS[(7u & (v_color >> 56u))])); + if ((v_r1 >> 5u) != 0u) { + wuffs_etc2__decoder__decode_t_mode(self, v_color, (16u * v_bi), v_tran); + v_bi += 1u; + continue; + } + v_r0 = (((uint32_t)(v_r0 << 3u)) | (v_r0 >> 2u)); + v_r1 = (((uint32_t)(v_r1 << 3u)) | (v_r1 >> 2u)); + v_g0 = ((uint32_t)((31u & (v_color >> 51u)))); + v_g1 = ((uint32_t)(v_g0 + WUFFS_ETC2__DIFFS[(7u & (v_color >> 48u))])); + if ((v_g1 >> 5u) != 0u) { + wuffs_etc2__decoder__decode_h_mode(self, v_color, (16u * v_bi), v_tran); + v_bi += 1u; + continue; + } + v_g0 = (((uint32_t)(v_g0 << 3u)) | (v_g0 >> 2u)); + v_g1 = (((uint32_t)(v_g1 << 3u)) | (v_g1 >> 2u)); + v_b0 = ((uint32_t)((31u & (v_color >> 43u)))); + v_b1 = ((uint32_t)(v_b0 + WUFFS_ETC2__DIFFS[(7u & (v_color >> 40u))])); + if ((v_b1 >> 5u) != 0u) { + wuffs_etc2__decoder__decode_planar_mode(self, v_color, (16u * v_bi)); + v_bi += 1u; + continue; + } + v_b0 = (((uint32_t)(v_b0 << 3u)) | (v_b0 >> 2u)); + v_b1 = (((uint32_t)(v_b1 << 3u)) | (v_b1 >> 2u)); + } + v_flip = ((v_color & 4294967296u) != 0u); + wuffs_etc2__decoder__decode_half_block(self, + ((uint32_t)(v_color)), + (16u * v_bi), + ((uint32_t)(((v_color >> 37u) & 7u))), + v_r0, + v_g0, + v_b0, + v_flip, + v_tran, + false); + wuffs_etc2__decoder__decode_half_block(self, + ((uint32_t)(v_color)), + (16u * v_bi), + ((uint32_t)(((v_color >> 34u) & 7u))), + v_r1, + v_g1, + v_b1, + v_flip, + v_tran, + true); + v_bi += 1u; + } + return wuffs_base__make_empty_struct(); +} + +// -------- func etc2.decoder.decode_t_mode + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_etc2__decoder__decode_t_mode( + wuffs_etc2__decoder* self, + uint64_t a_bits, + uint32_t a_offset, + bool a_transparent) { + uint8_t v_r[4] = {0}; + uint8_t v_g[4] = {0}; + uint8_t v_b[4] = {0}; + uint8_t v_a[4] = {0}; + uint32_t v_which = 0; + uint32_t v_delta = 0; + uint32_t v_y = 0; + uint32_t v_x = 0; + uint32_t v_x4y = 0; + uint32_t v_index = 0; + uint32_t v_o = 0; + + v_r[0u] = ((uint8_t)(((uint8_t)((12u & (a_bits >> 57u)))) | ((uint8_t)((3u & (a_bits >> 56u)))))); + v_r[0u] = ((uint8_t)(((uint8_t)(v_r[0u] << 4u)) | v_r[0u])); + v_g[0u] = ((uint8_t)((15u & (a_bits >> 52u)))); + v_g[0u] = ((uint8_t)(((uint8_t)(v_g[0u] << 4u)) | v_g[0u])); + v_b[0u] = ((uint8_t)((15u & (a_bits >> 48u)))); + v_b[0u] = ((uint8_t)(((uint8_t)(v_b[0u] << 4u)) | v_b[0u])); + v_a[0u] = 255u; + v_r[2u] = ((uint8_t)((15u & (a_bits >> 44u)))); + v_r[2u] = ((uint8_t)(((uint8_t)(v_r[2u] << 4u)) | v_r[2u])); + v_g[2u] = ((uint8_t)((15u & (a_bits >> 40u)))); + v_g[2u] = ((uint8_t)(((uint8_t)(v_g[2u] << 4u)) | v_g[2u])); + v_b[2u] = ((uint8_t)((15u & (a_bits >> 36u)))); + v_b[2u] = ((uint8_t)(((uint8_t)(v_b[2u] << 4u)) | v_b[2u])); + v_a[2u] = 255u; + v_which = (((uint32_t)((6u & (a_bits >> 33u)))) | ((uint32_t)((1u & (a_bits >> 32u))))); + v_delta = ((uint32_t)(WUFFS_ETC2__T_H_MODIFIERS[v_which])); + v_r[1u] = WUFFS_ETC2__CLAMP[(((uint32_t)(((uint32_t)(v_r[2u])) + v_delta)) & 1023u)]; + v_g[1u] = WUFFS_ETC2__CLAMP[(((uint32_t)(((uint32_t)(v_g[2u])) + v_delta)) & 1023u)]; + v_b[1u] = WUFFS_ETC2__CLAMP[(((uint32_t)(((uint32_t)(v_b[2u])) + v_delta)) & 1023u)]; + v_a[1u] = 255u; + v_r[3u] = WUFFS_ETC2__CLAMP[(((uint32_t)(((uint32_t)(v_r[2u])) - v_delta)) & 1023u)]; + v_g[3u] = WUFFS_ETC2__CLAMP[(((uint32_t)(((uint32_t)(v_g[2u])) - v_delta)) & 1023u)]; + v_b[3u] = WUFFS_ETC2__CLAMP[(((uint32_t)(((uint32_t)(v_b[2u])) - v_delta)) & 1023u)]; + v_a[3u] = 255u; + if (a_transparent) { + v_r[2u] = 0u; + v_g[2u] = 0u; + v_b[2u] = 0u; + v_a[2u] = 0u; + } + while (v_y < 4u) { + v_x = 0u; + while (v_x < 4u) { + v_x4y = ((v_x * 4u) | v_y); + v_index = (((uint32_t)(((a_bits >> v_x4y) & 1u))) | ((uint32_t)(((a_bits >> (v_x4y + 15u)) & 2u)))); + v_o = (a_offset + (v_x * 4u) + (v_y * 1024u)); + self->private_data.f_buffer[(v_o + 0u)] = v_b[v_index]; + self->private_data.f_buffer[(v_o + 1u)] = v_g[v_index]; + self->private_data.f_buffer[(v_o + 2u)] = v_r[v_index]; + self->private_data.f_buffer[(v_o + 3u)] = v_a[v_index]; + v_x += 1u; + } + v_y += 1u; + } + return wuffs_base__make_empty_struct(); +} + +// -------- func etc2.decoder.decode_h_mode + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_etc2__decoder__decode_h_mode( + wuffs_etc2__decoder* self, + uint64_t a_bits, + uint32_t a_offset, + bool a_transparent) { + uint8_t v_r[4] = {0}; + uint8_t v_g[4] = {0}; + uint8_t v_b[4] = {0}; + uint8_t v_a[4] = {0}; + uint32_t v_rgb0 = 0; + uint32_t v_rgb2 = 0; + uint32_t v_which = 0; + uint32_t v_delta = 0; + uint32_t v_y = 0; + uint32_t v_x = 0; + uint32_t v_x4y = 0; + uint32_t v_index = 0; + uint32_t v_o = 0; + + v_r[0u] = ((uint8_t)((15u & (a_bits >> 59u)))); + v_r[0u] = ((uint8_t)(((uint8_t)(v_r[0u] << 4u)) | v_r[0u])); + v_g[0u] = ((uint8_t)(((uint8_t)((14u & (a_bits >> 55u)))) | ((uint8_t)((1u & (a_bits >> 52u)))))); + v_g[0u] = ((uint8_t)(((uint8_t)(v_g[0u] << 4u)) | v_g[0u])); + v_b[0u] = ((uint8_t)(((uint8_t)((8u & (a_bits >> 48u)))) | ((uint8_t)((7u & (a_bits >> 47u)))))); + v_b[0u] = ((uint8_t)(((uint8_t)(v_b[0u] << 4u)) | v_b[0u])); + v_r[2u] = ((uint8_t)((15u & (a_bits >> 43u)))); + v_r[2u] = ((uint8_t)(((uint8_t)(v_r[2u] << 4u)) | v_r[2u])); + v_g[2u] = ((uint8_t)((15u & (a_bits >> 39u)))); + v_g[2u] = ((uint8_t)(((uint8_t)(v_g[2u] << 4u)) | v_g[2u])); + v_b[2u] = ((uint8_t)((15u & (a_bits >> 35u)))); + v_b[2u] = ((uint8_t)(((uint8_t)(v_b[2u] << 4u)) | v_b[2u])); + v_rgb0 = ((((uint32_t)(v_r[0u])) << 16u) | (((uint32_t)(v_g[0u])) << 8u) | (((uint32_t)(v_b[0u])) << 0u)); + v_rgb2 = ((((uint32_t)(v_r[2u])) << 16u) | (((uint32_t)(v_g[2u])) << 8u) | (((uint32_t)(v_b[2u])) << 0u)); + v_which = (((uint32_t)((4u & (a_bits >> 32u)))) | ((uint32_t)((2u & (a_bits >> 31u))))); + if (v_rgb0 >= v_rgb2) { + v_which |= 1u; + } + v_delta = ((uint32_t)(WUFFS_ETC2__T_H_MODIFIERS[v_which])); + v_r[1u] = WUFFS_ETC2__CLAMP[(((uint32_t)(((uint32_t)(v_r[0u])) - v_delta)) & 1023u)]; + v_g[1u] = WUFFS_ETC2__CLAMP[(((uint32_t)(((uint32_t)(v_g[0u])) - v_delta)) & 1023u)]; + v_b[1u] = WUFFS_ETC2__CLAMP[(((uint32_t)(((uint32_t)(v_b[0u])) - v_delta)) & 1023u)]; + v_a[1u] = 255u; + v_r[0u] = WUFFS_ETC2__CLAMP[(((uint32_t)(((uint32_t)(v_r[0u])) + v_delta)) & 1023u)]; + v_g[0u] = WUFFS_ETC2__CLAMP[(((uint32_t)(((uint32_t)(v_g[0u])) + v_delta)) & 1023u)]; + v_b[0u] = WUFFS_ETC2__CLAMP[(((uint32_t)(((uint32_t)(v_b[0u])) + v_delta)) & 1023u)]; + v_a[0u] = 255u; + v_r[3u] = WUFFS_ETC2__CLAMP[(((uint32_t)(((uint32_t)(v_r[2u])) - v_delta)) & 1023u)]; + v_g[3u] = WUFFS_ETC2__CLAMP[(((uint32_t)(((uint32_t)(v_g[2u])) - v_delta)) & 1023u)]; + v_b[3u] = WUFFS_ETC2__CLAMP[(((uint32_t)(((uint32_t)(v_b[2u])) - v_delta)) & 1023u)]; + v_a[3u] = 255u; + v_r[2u] = WUFFS_ETC2__CLAMP[(((uint32_t)(((uint32_t)(v_r[2u])) + v_delta)) & 1023u)]; + v_g[2u] = WUFFS_ETC2__CLAMP[(((uint32_t)(((uint32_t)(v_g[2u])) + v_delta)) & 1023u)]; + v_b[2u] = WUFFS_ETC2__CLAMP[(((uint32_t)(((uint32_t)(v_b[2u])) + v_delta)) & 1023u)]; + v_a[2u] = 255u; + if (a_transparent) { + v_r[2u] = 0u; + v_g[2u] = 0u; + v_b[2u] = 0u; + v_a[2u] = 0u; + } + while (v_y < 4u) { + v_x = 0u; + while (v_x < 4u) { + v_x4y = ((v_x * 4u) | v_y); + v_index = (((uint32_t)(((a_bits >> v_x4y) & 1u))) | ((uint32_t)(((a_bits >> (v_x4y + 15u)) & 2u)))); + v_o = (a_offset + (v_x * 4u) + (v_y * 1024u)); + self->private_data.f_buffer[(v_o + 0u)] = v_b[v_index]; + self->private_data.f_buffer[(v_o + 1u)] = v_g[v_index]; + self->private_data.f_buffer[(v_o + 2u)] = v_r[v_index]; + self->private_data.f_buffer[(v_o + 3u)] = v_a[v_index]; + v_x += 1u; + } + v_y += 1u; + } + return wuffs_base__make_empty_struct(); +} + +// -------- func etc2.decoder.decode_planar_mode + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_etc2__decoder__decode_planar_mode( + wuffs_etc2__decoder* self, + uint64_t a_bits, + uint32_t a_offset) { + uint32_t v_ro = 0; + uint32_t v_go = 0; + uint32_t v_bo = 0; + uint32_t v_rh = 0; + uint32_t v_gh = 0; + uint32_t v_bh = 0; + uint32_t v_rv = 0; + uint32_t v_gv = 0; + uint32_t v_bv = 0; + uint32_t v_y = 0; + uint32_t v_x = 0; + uint32_t v_o = 0; + uint32_t v_rp = 0; + uint32_t v_gp = 0; + uint32_t v_bp = 0; + + v_ro = ((uint32_t)((63u & (a_bits >> 57u)))); + v_ro = (((uint32_t)(v_ro << 2u)) | (v_ro >> 4u)); + v_go = (((uint32_t)((64u & (a_bits >> 50u)))) | ((uint32_t)((63u & (a_bits >> 49u))))); + v_go = (((uint32_t)(v_go << 1u)) | (v_go >> 6u)); + v_bo = (((uint32_t)((32u & (a_bits >> 43u)))) | ((uint32_t)((24u & (a_bits >> 40u)))) | ((uint32_t)((7u & (a_bits >> 39u))))); + v_bo = (((uint32_t)(v_bo << 2u)) | (v_bo >> 4u)); + v_rh = (((uint32_t)((62u & (a_bits >> 33u)))) | ((uint32_t)((1u & (a_bits >> 32u))))); + v_rh = (((uint32_t)(v_rh << 2u)) | (v_rh >> 4u)); + v_gh = ((uint32_t)((127u & (a_bits >> 25u)))); + v_gh = (((uint32_t)(v_gh << 1u)) | (v_gh >> 6u)); + v_bh = ((uint32_t)((63u & (a_bits >> 19u)))); + v_bh = (((uint32_t)(v_bh << 2u)) | (v_bh >> 4u)); + v_rv = ((uint32_t)((63u & (a_bits >> 13u)))); + v_rv = (((uint32_t)(v_rv << 2u)) | (v_rv >> 4u)); + v_gv = ((uint32_t)((127u & (a_bits >> 6u)))); + v_gv = (((uint32_t)(v_gv << 1u)) | (v_gv >> 6u)); + v_bv = ((uint32_t)((63u & (a_bits >> 0u)))); + v_bv = (((uint32_t)(v_bv << 2u)) | (v_bv >> 4u)); + v_rh -= v_ro; + v_gh -= v_go; + v_bh -= v_bo; + v_rv -= v_ro; + v_gv -= v_go; + v_bv -= v_bo; + v_ro *= 4u; + v_go *= 4u; + v_bo *= 4u; + while (v_y < 4u) { + v_x = 0u; + while (v_x < 4u) { + v_o = (a_offset + (v_x * 4u) + (v_y * 1024u)); + v_bp = ((uint32_t)(((uint32_t)(((uint32_t)(v_x * v_bh)) + ((uint32_t)(v_y * v_bv)))) + v_bo)); + self->private_data.f_buffer[(v_o + 0u)] = WUFFS_ETC2__CLAMP[((((uint32_t)(v_bp + 2u)) / 4u) & 1023u)]; + v_gp = ((uint32_t)(((uint32_t)(((uint32_t)(v_x * v_gh)) + ((uint32_t)(v_y * v_gv)))) + v_go)); + self->private_data.f_buffer[(v_o + 1u)] = WUFFS_ETC2__CLAMP[((((uint32_t)(v_gp + 2u)) / 4u) & 1023u)]; + v_rp = ((uint32_t)(((uint32_t)(((uint32_t)(v_x * v_rh)) + ((uint32_t)(v_y * v_rv)))) + v_ro)); + self->private_data.f_buffer[(v_o + 2u)] = WUFFS_ETC2__CLAMP[((((uint32_t)(v_rp + 2u)) / 4u) & 1023u)]; + v_x += 1u; + self->private_data.f_buffer[(v_o + 3u)] = 255u; + } + v_y += 1u; + } + return wuffs_base__make_empty_struct(); +} + +// -------- func etc2.decoder.decode_half_block + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_etc2__decoder__decode_half_block( + wuffs_etc2__decoder* self, + uint32_t a_bits, + uint32_t a_offset, + uint32_t a_which, + uint32_t a_r, + uint32_t a_g, + uint32_t a_b, + bool a_flip, + bool a_transparent, + bool a_second) { + uint32_t v_which = 0; + uint32_t v_x0 = 0; + uint32_t v_y0 = 0; + uint32_t v_x = 0; + uint32_t v_y = 0; + uint32_t v_i = 0; + uint32_t v_x4y = 0; + uint32_t v_index = 0; + uint32_t v_modif = 0; + uint32_t v_o = 0; + + v_which = a_which; + if (a_transparent) { + v_which |= 8u; + } + if ( ! a_second) { + } else if (a_flip) { + v_y0 = 2u; + } else { + v_x0 = 2u; + } + while (v_i < 8u) { + if (a_flip) { + v_x = ((v_x0 + (v_i / 2u)) & 3u); + v_y = (v_y0 + (v_i & 1u)); + } else { + v_x = (v_x0 + (v_i / 4u)); + v_y = ((v_y0 + v_i) & 3u); + } + v_x4y = ((v_x * 4u) | v_y); + v_index = (((a_bits >> v_x4y) & 1u) | ((a_bits >> (v_x4y + 15u)) & 2u)); + v_modif = WUFFS_ETC2__MODIFIERS[v_which][v_index]; + v_o = (a_offset + (v_x * 4u) + (v_y * 1024u)); + if (a_transparent && (v_index == 2u)) { + self->private_data.f_buffer[(v_o + 0u)] = 0u; + self->private_data.f_buffer[(v_o + 1u)] = 0u; + self->private_data.f_buffer[(v_o + 2u)] = 0u; + self->private_data.f_buffer[(v_o + 3u)] = 0u; + } else { + self->private_data.f_buffer[(v_o + 0u)] = WUFFS_ETC2__CLAMP[(((uint32_t)(a_b + v_modif)) & 1023u)]; + self->private_data.f_buffer[(v_o + 1u)] = WUFFS_ETC2__CLAMP[(((uint32_t)(a_g + v_modif)) & 1023u)]; + self->private_data.f_buffer[(v_o + 2u)] = WUFFS_ETC2__CLAMP[(((uint32_t)(a_r + v_modif)) & 1023u)]; + self->private_data.f_buffer[(v_o + 3u)] = 255u; + } + v_i += 1u; + } + return wuffs_base__make_empty_struct(); +} + +// -------- func etc2.decoder.from_alphas_to_buffer + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_etc2__decoder__from_alphas_to_buffer( + wuffs_etc2__decoder* self) { + uint32_t v_bi = 0; + uint64_t v_alpha = 0; + uint32_t v_a0 = 0; + uint32_t v_multiplier = 0; + uint32_t v_which = 0; + uint32_t v_offset = 0; + uint32_t v_y = 0; + uint32_t v_x = 0; + uint32_t v_shift = 0; + uint32_t v_delta = 0; + uint32_t v_o = 0; + + while (v_bi < self->private_impl.f_num_buffered_blocks) { + v_alpha = self->private_data.f_alphas[v_bi]; + v_a0 = ((uint32_t)((v_alpha >> 56u))); + v_multiplier = ((uint32_t)(((v_alpha >> 52u) & 15u))); + v_which = ((uint32_t)(((v_alpha >> 48u) & 15u))); + v_offset = (16u * v_bi); + v_y = 0u; + while (v_y < 4u) { + v_x = 0u; + while (v_x < 4u) { + v_shift = ((((v_x ^ 3u) * 4u) | (v_y ^ 3u)) * 3u); + v_delta = ((uint32_t)(v_multiplier * WUFFS_ETC2__ALPHA_MODIFIERS[v_which][(7u & (v_alpha >> v_shift))])); + v_o = (v_offset + (v_x * 4u) + (v_y * 1024u)); + self->private_data.f_buffer[(v_o + 3u)] = WUFFS_ETC2__CLAMP[(((uint32_t)(v_a0 + v_delta)) & 1023u)]; + v_x += 1u; + } + v_y += 1u; + } + v_bi += 1u; + } + return wuffs_base__make_empty_struct(); +} + +// -------- func etc2.decoder.from_buffer_to_dst + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_etc2__decoder__from_buffer_to_dst( + wuffs_etc2__decoder* self, + wuffs_base__pixel_buffer* a_dst) { + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint32_t v_dst_bytes_per_pixel = 0; + uint64_t v_dst_bytes_per_row = 0; + wuffs_base__table_u8 v_tab = {0}; + uint32_t v_bi = 0; + uint32_t v_rem_x = 0; + uint32_t v_dy = 0; + wuffs_base__slice_u8 v_dst = {0}; + wuffs_base__slice_u8 v_src = {0}; + uint32_t v_si = 0; + uint32_t v_sj = 0; + uint64_t v_i = 0; + uint32_t v_num_src_pixels = 0; + + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + return wuffs_base__make_status(wuffs_base__error__unsupported_option); + } + v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); + v_dst_bytes_per_row = ((uint64_t)((self->private_impl.f_width * v_dst_bytes_per_pixel))); + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + while (v_bi < self->private_impl.f_num_buffered_blocks) { + if (self->private_impl.f_width <= self->private_impl.f_dst_x) { + self->private_impl.f_dst_x = 0u; + self->private_impl.f_dst_y += 4u; + if (self->private_impl.f_dst_y >= self->private_impl.f_height) { + break; + } + v_rem_x = self->private_impl.f_width; + } else { + v_rem_x = (self->private_impl.f_width - self->private_impl.f_dst_x); + } + v_dy = 0u; + while (v_dy < 4u) { + v_si = ((1024u * v_dy) + (16u * v_bi)); + v_sj = ((1024u * v_dy) + 1024u); + if (v_si < v_sj) { + v_src = wuffs_base__make_slice_u8_ij(self->private_data.f_buffer, v_si, v_sj); + } + if (((uint64_t)((4u * v_rem_x))) < ((uint64_t)(v_src.len))) { + v_src = wuffs_base__slice_u8__subslice_j(v_src, ((uint64_t)((4u * v_rem_x)))); + } + if (((uint32_t)(self->private_impl.f_dst_y + v_dy)) >= self->private_impl.f_height) { + break; + } + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, ((uint32_t)(self->private_impl.f_dst_y + v_dy))); + if (v_dst_bytes_per_row < ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row); + } + v_i = (((uint64_t)(self->private_impl.f_dst_x)) * ((uint64_t)(v_dst_bytes_per_pixel))); + if (v_i < ((uint64_t)(v_dst.len))) { + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), wuffs_base__pixel_buffer__palette(a_dst), v_src); + } + v_dy += 1u; + } + v_num_src_pixels = (((uint32_t)(((uint64_t)(v_src.len)))) / 4u); + self->private_impl.f_dst_x += v_num_src_pixels; + v_bi += ((v_num_src_pixels + 3u) / 4u); + } + return wuffs_base__make_status(NULL); +} + +// -------- func etc2.decoder.frame_dirty_rect + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_etc2__decoder__frame_dirty_rect( + const wuffs_etc2__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + + return wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height); +} + +// -------- func etc2.decoder.num_animation_loops + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_etc2__decoder__num_animation_loops( + const wuffs_etc2__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return 0u; +} + +// -------- func etc2.decoder.num_decoded_frame_configs + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_etc2__decoder__num_decoded_frame_configs( + const wuffs_etc2__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (self->private_impl.f_call_sequence > 32u) { + return 1u; + } + return 0u; +} + +// -------- func etc2.decoder.num_decoded_frames + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_etc2__decoder__num_decoded_frames( + const wuffs_etc2__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (self->private_impl.f_call_sequence > 64u) { + return 1u; + } + return 0u; +} + +// -------- func etc2.decoder.restart_frame + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_etc2__decoder__restart_frame( + wuffs_etc2__decoder* self, + uint64_t a_index, + uint64_t a_io_position) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + if (self->private_impl.f_call_sequence < 32u) { + return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + } + if ((a_index != 0u) || (a_io_position != 16u)) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + self->private_impl.f_call_sequence = 40u; + return wuffs_base__make_status(NULL); +} + +// -------- func etc2.decoder.set_report_metadata + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_etc2__decoder__set_report_metadata( + wuffs_etc2__decoder* self, + uint32_t a_fourcc, + bool a_report) { + return wuffs_base__make_empty_struct(); +} + +// -------- func etc2.decoder.tell_me_more + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_etc2__decoder__tell_me_more( + wuffs_etc2__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 4)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + status = wuffs_base__make_status(wuffs_base__error__no_more_information); + goto exit; + + goto ok; + ok: + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func etc2.decoder.workbuf_len + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_etc2__decoder__workbuf_len( + const wuffs_etc2__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + return wuffs_base__utility__make_range_ii_u64(0u, 0u); +} + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ETC2) #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__GIF) @@ -38227,7 +44312,7 @@ WUFFS_GIF__XMPDATAXMP[11] WUFFS_BASE__POTENTIALLY_UNUSED = { 88u, 77u, 80u, }; -#define WUFFS_GIF__QUIRKS_BASE 1041635328u +#define WUFFS_GIF__QUIRKS_BASE 983928832u #define WUFFS_GIF__QUIRKS_COUNT 7u @@ -38450,7 +44535,7 @@ wuffs_gif__decoder__initialize( wuffs_gif__decoder* wuffs_gif__decoder__alloc(void) { wuffs_gif__decoder* x = - (wuffs_gif__decoder*)(calloc(sizeof(wuffs_gif__decoder), 1)); + (wuffs_gif__decoder*)(calloc(1, sizeof(wuffs_gif__decoder))); if (!x) { return NULL; } @@ -38486,8 +44571,8 @@ wuffs_gif__decoder__get_quirk( uint32_t v_key = 0; - if (a_key >= 1041635328u) { - v_key = (a_key - 1041635328u); + if (a_key >= 983928832u) { + v_key = (a_key - 983928832u); if (v_key < 7u) { if (self->private_impl.f_quirks[v_key]) { return 1u; @@ -38515,8 +44600,8 @@ wuffs_gif__decoder__set_quirk( : wuffs_base__error__initialize_not_called); } - if ((self->private_impl.f_call_sequence == 0u) && (a_key >= 1041635328u)) { - a_key -= 1041635328u; + if ((self->private_impl.f_call_sequence == 0u) && (a_key >= 983928832u)) { + a_key -= 983928832u; if (a_key < 7u) { self->private_impl.f_quirks[a_key] = (a_value > 0u); return wuffs_base__make_status(NULL); @@ -39566,8 +45651,7 @@ wuffs_gif__decoder__decode_header( wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c[6] = {0}; - uint32_t v_i = 0; + uint64_t v_c48 = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -39581,31 +45665,39 @@ wuffs_gif__decoder__decode_header( } uint32_t coro_susp_point = self->private_impl.p_decode_header; - if (coro_susp_point) { - memcpy(v_c, self->private_data.s_decode_header.v_c, sizeof(v_c)); - v_i = self->private_data.s_decode_header.v_i; - } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - while (v_i < 6u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint64_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 6)) { + t_0 = ((uint64_t)(wuffs_base__peek_u48le__no_bounds_check(iop_a_src))); + iop_a_src += 6; + } else { + self->private_data.s_decode_header.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_header.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 40) { + t_0 = ((uint64_t)(*scratch)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; } - uint8_t t_0 = *iop_a_src++; - v_c[v_i] = t_0; } - v_i += 1u; + v_c48 = t_0; } - if ((v_c[0u] != 71u) || - (v_c[1u] != 73u) || - (v_c[2u] != 70u) || - (v_c[3u] != 56u) || - ((v_c[4u] != 55u) && (v_c[4u] != 57u)) || - (v_c[5u] != 97u)) { + if ((v_c48 != 106889795225927u) && (v_c48 != 106898385160519u)) { status = wuffs_base__make_status(wuffs_gif__error__bad_header); goto exit; } @@ -39619,8 +45711,6 @@ wuffs_gif__decoder__decode_header( goto suspend; suspend: self->private_impl.p_decode_header = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - memcpy(self->private_data.s_decode_header.v_c, v_c, sizeof(v_c)); - self->private_data.s_decode_header.v_i = v_i; goto exit; exit: @@ -40006,7 +46096,7 @@ wuffs_gif__decoder__decode_ae( wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; + uint8_t v_c8 = 0; uint8_t v_block_size = 0; bool v_is_animexts = false; bool v_is_netscape = false; @@ -40078,12 +46168,12 @@ wuffs_gif__decoder__decode_ae( goto suspend; } uint8_t t_1 = *iop_a_src++; - v_c = t_1; + v_c8 = t_1; } - v_is_animexts = (v_is_animexts && (v_c == WUFFS_GIF__ANIMEXTS1DOT0[v_block_size])); - v_is_netscape = (v_is_netscape && (v_c == WUFFS_GIF__NETSCAPE2DOT0[v_block_size])); - v_is_iccp = (v_is_iccp && (v_c == WUFFS_GIF__ICCRGBG1012[v_block_size])); - v_is_xmp = (v_is_xmp && (v_c == WUFFS_GIF__XMPDATAXMP[v_block_size])); + v_is_animexts = (v_is_animexts && (v_c8 == WUFFS_GIF__ANIMEXTS1DOT0[v_block_size])); + v_is_netscape = (v_is_netscape && (v_c8 == WUFFS_GIF__NETSCAPE2DOT0[v_block_size])); + v_is_iccp = (v_is_iccp && (v_c8 == WUFFS_GIF__ICCRGBG1012[v_block_size])); + v_is_xmp = (v_is_xmp && (v_c8 == WUFFS_GIF__XMPDATAXMP[v_block_size])); #if defined(__GNUC__) #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wconversion" @@ -40122,9 +46212,9 @@ wuffs_gif__decoder__decode_ae( goto suspend; } uint8_t t_3 = *iop_a_src++; - v_c = t_3; + v_c8 = t_3; } - if (v_c != 1u) { + if (v_c8 != 1u) { self->private_data.s_decode_ae.scratch = 2u; WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); if (self->private_data.s_decode_ae.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { @@ -40228,7 +46318,7 @@ wuffs_gif__decoder__decode_gc( wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; + uint8_t v_c8 = 0; uint8_t v_flags = 0; uint16_t v_gc_duration_centiseconds = 0; @@ -40254,9 +46344,9 @@ wuffs_gif__decoder__decode_gc( goto suspend; } uint8_t t_0 = *iop_a_src++; - v_c = t_0; + v_c8 = t_0; } - if (v_c != 4u) { + if (v_c8 != 4u) { status = wuffs_base__make_status(wuffs_gif__error__bad_graphic_control); goto exit; } @@ -40324,9 +46414,9 @@ wuffs_gif__decoder__decode_gc( goto suspend; } uint8_t t_4 = *iop_a_src++; - v_c = t_4; + v_c8 = t_4; } - if (v_c != 0u) { + if (v_c8 != 0u) { status = wuffs_base__make_status(wuffs_gif__error__bad_graphic_control); goto exit; } @@ -40784,10 +46874,10 @@ wuffs_gif__decoder__decode_id_part2( } { wuffs_base__io_buffer* o_0_v_r = v_r; - const uint8_t *o_0_iop_v_r = iop_v_r; - const uint8_t *o_0_io0_v_r = io0_v_r; - const uint8_t *o_0_io1_v_r = io1_v_r; - const uint8_t *o_0_io2_v_r = io2_v_r; + const uint8_t* o_0_iop_v_r = iop_v_r; + const uint8_t* o_0_io0_v_r = io0_v_r; + const uint8_t* o_0_io1_v_r = io1_v_r; + const uint8_t* o_0_io2_v_r = io2_v_r; v_r = wuffs_private_impl__io_reader__set( &u_r, &iop_v_r, @@ -41356,7 +47446,7 @@ wuffs_gzip__decoder__initialize( wuffs_gzip__decoder* wuffs_gzip__decoder__alloc(void) { wuffs_gzip__decoder* x = - (wuffs_gzip__decoder*)(calloc(sizeof(wuffs_gzip__decoder), 1)); + (wuffs_gzip__decoder*)(calloc(1, sizeof(wuffs_gzip__decoder))); if (!x) { return NULL; } @@ -41533,12 +47623,12 @@ wuffs_gzip__decoder__do_transform_io( wuffs_base__slice_u8 a_workbuf) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; + uint8_t v_c8 = 0; uint8_t v_flags = 0; uint16_t v_xlen = 0; uint64_t v_mark = 0; - uint32_t v_checksum_got = 0; - uint32_t v_decoded_length_got = 0; + uint32_t v_checksum_have = 0; + uint32_t v_decoded_length_have = 0; wuffs_base__status v_status = wuffs_base__make_status(NULL); uint32_t v_checksum_want = 0; uint32_t v_decoded_length_want = 0; @@ -41570,8 +47660,8 @@ wuffs_gzip__decoder__do_transform_io( uint32_t coro_susp_point = self->private_impl.p_do_transform_io; if (coro_susp_point) { v_flags = self->private_data.s_do_transform_io.v_flags; - v_checksum_got = self->private_data.s_do_transform_io.v_checksum_got; - v_decoded_length_got = self->private_data.s_do_transform_io.v_decoded_length_got; + v_checksum_have = self->private_data.s_do_transform_io.v_checksum_have; + v_decoded_length_have = self->private_data.s_do_transform_io.v_decoded_length_have; v_checksum_want = self->private_data.s_do_transform_io.v_checksum_want; } switch (coro_susp_point) { @@ -41584,9 +47674,9 @@ wuffs_gzip__decoder__do_transform_io( goto suspend; } uint8_t t_0 = *iop_a_src++; - v_c = t_0; + v_c8 = t_0; } - if (v_c != 31u) { + if (v_c8 != 31u) { status = wuffs_base__make_status(wuffs_gzip__error__bad_header); goto exit; } @@ -41597,9 +47687,9 @@ wuffs_gzip__decoder__do_transform_io( goto suspend; } uint8_t t_1 = *iop_a_src++; - v_c = t_1; + v_c8 = t_1; } - if (v_c != 139u) { + if (v_c8 != 139u) { status = wuffs_base__make_status(wuffs_gzip__error__bad_header); goto exit; } @@ -41610,9 +47700,9 @@ wuffs_gzip__decoder__do_transform_io( goto suspend; } uint8_t t_2 = *iop_a_src++; - v_c = t_2; + v_c8 = t_2; } - if (v_c != 8u) { + if (v_c8 != 8u) { status = wuffs_base__make_status(wuffs_gzip__error__bad_compression_method); goto exit; } @@ -41683,9 +47773,9 @@ wuffs_gzip__decoder__do_transform_io( goto suspend; } uint8_t t_5 = *iop_a_src++; - v_c = t_5; + v_c8 = t_5; } - if (v_c == 0u) { + if (v_c8 == 0u) { break; } } @@ -41699,9 +47789,9 @@ wuffs_gzip__decoder__do_transform_io( goto suspend; } uint8_t t_6 = *iop_a_src++; - v_c = t_6; + v_c8 = t_6; } - if (v_c == 0u) { + if (v_c8 == 0u) { break; } } @@ -41740,8 +47830,8 @@ wuffs_gzip__decoder__do_transform_io( } } if ( ! self->private_impl.f_ignore_checksum) { - v_checksum_got = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_checksum, wuffs_private_impl__io__since(v_mark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); - v_decoded_length_got += ((uint32_t)(wuffs_private_impl__io__count_since(v_mark, ((uint64_t)(iop_a_dst - io0_a_dst))))); + v_checksum_have = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_checksum, wuffs_private_impl__io__since(v_mark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); + v_decoded_length_have += ((uint32_t)(wuffs_private_impl__io__count_since(v_mark, ((uint64_t)(iop_a_dst - io0_a_dst))))); } if (wuffs_base__status__is_ok(&v_status)) { break; @@ -41807,7 +47897,7 @@ wuffs_gzip__decoder__do_transform_io( } v_decoded_length_want = t_9; } - if ( ! self->private_impl.f_ignore_checksum && ((v_checksum_got != v_checksum_want) || (v_decoded_length_got != v_decoded_length_want))) { + if ( ! self->private_impl.f_ignore_checksum && ((v_checksum_have != v_checksum_want) || (v_decoded_length_have != v_decoded_length_want))) { status = wuffs_base__make_status(wuffs_gzip__error__bad_checksum); goto exit; } @@ -41821,8 +47911,8 @@ wuffs_gzip__decoder__do_transform_io( suspend: self->private_impl.p_do_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; self->private_data.s_do_transform_io.v_flags = v_flags; - self->private_data.s_do_transform_io.v_checksum_got = v_checksum_got; - self->private_data.s_do_transform_io.v_decoded_length_got = v_decoded_length_got; + self->private_data.s_do_transform_io.v_checksum_have = v_checksum_have; + self->private_data.s_do_transform_io.v_decoded_length_have = v_decoded_length_have; self->private_data.s_do_transform_io.v_checksum_want = v_checksum_want; goto exit; @@ -41850,8 +47940,11 @@ const char wuffs_jpeg__error__bad_sof_marker[] = "#jpeg: bad SOF marker"; const char wuffs_jpeg__error__bad_sos_marker[] = "#jpeg: bad SOS marker"; const char wuffs_jpeg__error__bad_header[] = "#jpeg: bad header"; const char wuffs_jpeg__error__bad_marker[] = "#jpeg: bad marker"; +const char wuffs_jpeg__error__bad_scan_count[] = "#jpeg: bad scan count"; const char wuffs_jpeg__error__missing_huffman_table[] = "#jpeg: missing Huffman table"; const char wuffs_jpeg__error__missing_quantization_table[] = "#jpeg: missing Quantization table"; +const char wuffs_jpeg__error__rejected_progressive_jpeg[] = "#jpeg: rejected progressive JPEG"; +const char wuffs_jpeg__error__short_sos_bitstream[] = "#jpeg: short SOS bitstream"; const char wuffs_jpeg__error__truncated_input[] = "#jpeg: truncated input"; const char wuffs_jpeg__error__unsupported_arithmetic_coding[] = "#jpeg: unsupported arithmetic coding"; const char wuffs_jpeg__error__unsupported_color_model[] = "#jpeg: unsupported color model"; @@ -42090,6 +48183,8 @@ WUFFS_JPEG__DEFAULT_HUFF_TABLE_AC_CHROMA[179] WUFFS_BASE__POTENTIALLY_UNUSED = { 248u, 249u, 250u, }; +#define WUFFS_JPEG__QUIRKS_BASE 1162824704u + // ---------------- Private Initializer Prototypes // ---------------- Private Function Prototypes @@ -42110,7 +48205,7 @@ wuffs_jpeg__decoder__decode_idct__choosy_default( uint64_t a_dst_stride, uint32_t a_q); -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct wuffs_jpeg__decoder__decode_idct_x86_avx2( @@ -42118,7 +48213,7 @@ wuffs_jpeg__decoder__decode_idct_x86_avx2( wuffs_base__slice_u8 a_dst_buffer, uint64_t a_dst_stride, uint32_t a_q); -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_64) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status @@ -42194,6 +48289,7 @@ WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status wuffs_jpeg__decoder__decode_sos( wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, wuffs_base__io_buffer* a_src, wuffs_base__slice_u8 a_workbuf); @@ -42276,14 +48372,23 @@ static wuffs_base__status wuffs_jpeg__decoder__swizzle_gray( wuffs_jpeg__decoder* self, wuffs_base__pixel_buffer* a_dst, - wuffs_base__slice_u8 a_workbuf); + wuffs_base__slice_u8 a_workbuf, + uint32_t a_x0, + uint32_t a_x1, + uint32_t a_y0, + uint32_t a_y1, + uint64_t a_stride); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status wuffs_jpeg__decoder__swizzle_colorful( wuffs_jpeg__decoder* self, wuffs_base__pixel_buffer* a_dst, - wuffs_base__slice_u8 a_workbuf); + wuffs_base__slice_u8 a_workbuf, + uint32_t a_x0, + uint32_t a_x1, + uint32_t a_y0, + uint32_t a_y1); WUFFS_BASE__GENERATED_C_CODE static bool @@ -42304,6 +48409,7 @@ WUFFS_BASE__GENERATED_C_CODE static uint32_t wuffs_jpeg__decoder__decode_mcu( wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, wuffs_base__slice_u8 a_workbuf, uint32_t a_mx, uint32_t a_my); @@ -42312,6 +48418,7 @@ WUFFS_BASE__GENERATED_C_CODE static uint32_t wuffs_jpeg__decoder__decode_mcu__choosy_default( wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, wuffs_base__slice_u8 a_workbuf, uint32_t a_mx, uint32_t a_my); @@ -42320,6 +48427,7 @@ WUFFS_BASE__GENERATED_C_CODE static uint32_t wuffs_jpeg__decoder__decode_mcu_progressive_ac_high_bits( wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, wuffs_base__slice_u8 a_workbuf, uint32_t a_mx, uint32_t a_my); @@ -42328,6 +48436,7 @@ WUFFS_BASE__GENERATED_C_CODE static uint32_t wuffs_jpeg__decoder__decode_mcu_progressive_ac_low_bit( wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, wuffs_base__slice_u8 a_workbuf, uint32_t a_mx, uint32_t a_my); @@ -42336,6 +48445,7 @@ WUFFS_BASE__GENERATED_C_CODE static uint32_t wuffs_jpeg__decoder__decode_mcu_progressive_dc_high_bits( wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, wuffs_base__slice_u8 a_workbuf, uint32_t a_mx, uint32_t a_my); @@ -42344,6 +48454,7 @@ WUFFS_BASE__GENERATED_C_CODE static uint32_t wuffs_jpeg__decoder__decode_mcu_progressive_dc_low_bit( wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, wuffs_base__slice_u8 a_workbuf, uint32_t a_mx, uint32_t a_my); @@ -42442,7 +48553,7 @@ wuffs_jpeg__decoder__initialize( wuffs_jpeg__decoder* wuffs_jpeg__decoder__alloc(void) { wuffs_jpeg__decoder* x = - (wuffs_jpeg__decoder*)(calloc(sizeof(wuffs_jpeg__decoder), 1)); + (wuffs_jpeg__decoder*)(calloc(1, sizeof(wuffs_jpeg__decoder))); if (!x) { return NULL; } @@ -43585,7 +49696,7 @@ wuffs_jpeg__decoder__decode_idct__choosy_default( // ‼ WUFFS MULTI-FILE SECTION +x86_avx2 // -------- func jpeg.decoder.decode_idct_x86_avx2 -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2,avx2") WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct @@ -43969,7 +50080,7 @@ wuffs_jpeg__decoder__decode_idct_x86_avx2( wuffs_base__poke_u64le__no_bounds_check(a_dst_buffer.ptr, v_final7); return wuffs_base__make_empty_struct(); } -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_64) +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) // ‼ WUFFS MULTI-FILE SECTION -x86_avx2 // -------- func jpeg.decoder.get_quirk @@ -43987,6 +50098,15 @@ wuffs_jpeg__decoder__get_quirk( return 0; } + if (a_key == 2u) { + if (self->private_impl.f_use_lower_quality) { + return 18446744073709551615u; + } + } else if (a_key == 1162824704u) { + if (self->private_impl.f_reject_progressive_jpegs) { + return 1u; + } + } return 0u; } @@ -44008,6 +50128,13 @@ wuffs_jpeg__decoder__set_quirk( : wuffs_base__error__initialize_not_called); } + if (a_key == 2u) { + self->private_impl.f_use_lower_quality = (a_value >= 9223372036854775808u); + return wuffs_base__make_status(NULL); + } else if (a_key == 1162824704u) { + self->private_impl.f_reject_progressive_jpegs = (a_value != 0u); + return wuffs_base__make_status(NULL); + } return wuffs_base__make_status(wuffs_base__error__unsupported_option); } @@ -44087,7 +50214,7 @@ wuffs_jpeg__decoder__do_decode_image_config( wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; + uint8_t v_c8 = 0; uint8_t v_marker = 0; uint32_t v_pixfmt = 0; @@ -44120,9 +50247,9 @@ wuffs_jpeg__decoder__do_decode_image_config( goto suspend; } uint8_t t_0 = *iop_a_src++; - v_c = t_0; + v_c8 = t_0; } - if (v_c != 255u) { + if (v_c8 != 255u) { status = wuffs_base__make_status(wuffs_jpeg__error__bad_header); goto exit; } @@ -44133,9 +50260,9 @@ wuffs_jpeg__decoder__do_decode_image_config( goto suspend; } uint8_t t_1 = *iop_a_src++; - v_c = t_1; + v_c8 = t_1; } - if (v_c != 216u) { + if (v_c8 != 216u) { status = wuffs_base__make_status(wuffs_jpeg__error__bad_header); goto exit; } @@ -44148,9 +50275,9 @@ wuffs_jpeg__decoder__do_decode_image_config( goto suspend; } uint8_t t_2 = *iop_a_src++; - v_c = t_2; + v_c8 = t_2; } - if (v_c == 255u) { + if (v_c8 == 255u) { break; } } @@ -44162,10 +50289,10 @@ wuffs_jpeg__decoder__do_decode_image_config( goto suspend; } uint8_t t_3 = *iop_a_src++; - v_c = t_3; + v_c8 = t_3; } - if (v_c != 255u) { - v_marker = v_c; + if (v_c8 != 255u) { + v_marker = v_c8; break; } } @@ -44206,6 +50333,9 @@ wuffs_jpeg__decoder__do_decode_image_config( self->private_impl.f_payload_length = t_4; } if (self->private_impl.f_payload_length < 2u) { + if ((v_marker == 254u) || ((224u <= v_marker) && (v_marker < 240u))) { + continue; + } status = wuffs_base__make_status(wuffs_jpeg__error__bad_marker); goto exit; } @@ -44216,9 +50346,20 @@ wuffs_jpeg__decoder__do_decode_image_config( goto exit; } else if (v_marker < 208u) { if (v_marker <= 194u) { - if (self->private_impl.f_sof_marker != 0u) { + if ((v_marker == 194u) && self->private_impl.f_reject_progressive_jpegs) { + status = wuffs_base__make_status(wuffs_jpeg__error__rejected_progressive_jpeg); + goto exit; + } else if (self->private_impl.f_sof_marker != 0u) { status = wuffs_base__make_status(wuffs_jpeg__error__bad_sof_marker); goto exit; + } else if (v_marker == 192u) { + if (self->private_impl.f_seen_dht[2u] || + self->private_impl.f_seen_dht[3u] || + self->private_impl.f_seen_dht[6u] || + self->private_impl.f_seen_dht[7u]) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sof_marker); + goto exit; + } } self->private_impl.f_sof_marker = v_marker; if (a_src) { @@ -44237,8 +50378,18 @@ wuffs_jpeg__decoder__do_decode_image_config( status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_lossless_coding); goto exit; } else if (v_marker == 196u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); - goto exit; + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + status = wuffs_jpeg__decoder__decode_dht(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + continue; } else if ((197u <= v_marker) && (v_marker <= 199u)) { status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_hierarchical_coding); goto exit; @@ -44260,7 +50411,7 @@ wuffs_jpeg__decoder__do_decode_image_config( if (a_src) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); status = wuffs_jpeg__decoder__decode_dqt(self, a_src); if (a_src) { iop_a_src = a_src->data.ptr + a_src->meta.ri; @@ -44273,7 +50424,7 @@ wuffs_jpeg__decoder__do_decode_image_config( if (a_src) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); status = wuffs_jpeg__decoder__decode_dri(self, a_src); if (a_src) { iop_a_src = a_src->data.ptr + a_src->meta.ri; @@ -44290,7 +50441,7 @@ wuffs_jpeg__decoder__do_decode_image_config( if (a_src) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); status = wuffs_jpeg__decoder__decode_appn(self, a_src, v_marker); if (a_src) { iop_a_src = a_src->data.ptr + a_src->meta.ri; @@ -44307,7 +50458,7 @@ wuffs_jpeg__decoder__do_decode_image_config( } } self->private_data.s_do_decode_image_config.scratch = self->private_impl.f_payload_length; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); if (self->private_data.s_do_decode_image_config.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { self->private_data.s_do_decode_image_config.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); iop_a_src = io2_a_src; @@ -44318,7 +50469,7 @@ wuffs_jpeg__decoder__do_decode_image_config( self->private_impl.f_payload_length = 0u; } self->private_impl.choosy_decode_idct = ( -#if defined(WUFFS_BASE__CPU_ARCH__X86_64) +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V3) wuffs_base__cpu_arch__have_x86_avx2() ? &wuffs_jpeg__decoder__decode_idct_x86_avx2 : #endif self->private_impl.choosy_decode_idct); @@ -44368,7 +50519,7 @@ wuffs_jpeg__decoder__decode_dqt( wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; + uint8_t v_c8 = 0; uint8_t v_q = 0; uint32_t v_i = 0; @@ -44400,17 +50551,17 @@ wuffs_jpeg__decoder__decode_dqt( goto suspend; } uint8_t t_0 = *iop_a_src++; - v_c = t_0; + v_c8 = t_0; } - if (((uint8_t)(v_c & 15u)) > 3u) { + if (((uint8_t)(v_c8 & 15u)) > 3u) { status = wuffs_base__make_status(wuffs_jpeg__error__bad_dqt_marker); goto exit; } - v_q = ((uint8_t)(v_c & 15u)); - if (((uint8_t)(v_c >> 4u)) == 1u) { + v_q = ((uint8_t)(v_c8 & 15u)); + if (((uint8_t)(v_c8 >> 4u)) == 1u) { status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_precision); goto exit; - } else if ((((uint8_t)(v_c >> 4u)) > 1u) || (self->private_impl.f_payload_length < 64u)) { + } else if ((((uint8_t)(v_c8 >> 4u)) > 1u) || (self->private_impl.f_payload_length < 64u)) { status = wuffs_base__make_status(wuffs_jpeg__error__bad_dqt_marker); goto exit; } @@ -44762,7 +50913,7 @@ wuffs_jpeg__decoder__decode_sof( wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; + uint8_t v_c8 = 0; uint8_t v_comp_h = 0; uint8_t v_comp_v = 0; uint32_t v_i = 0; @@ -44808,13 +50959,13 @@ wuffs_jpeg__decoder__decode_sof( goto suspend; } uint8_t t_0 = *iop_a_src++; - v_c = t_0; + v_c8 = t_0; } - if (v_c == 8u) { - } else if (v_c == 12u) { + if (v_c8 == 8u) { + } else if (v_c8 == 12u) { status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_precision_12_bits); goto exit; - } else if (v_c == 16u) { + } else if (v_c8 == 16u) { status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_precision_16_bits); goto exit; } else { @@ -44894,16 +51045,16 @@ wuffs_jpeg__decoder__decode_sof( goto suspend; } uint8_t t_3 = *iop_a_src++; - v_c = t_3; + v_c8 = t_3; } - if ((v_c == 0u) || (v_c > 4u)) { + if ((v_c8 == 0u) || (v_c8 > 4u)) { status = wuffs_base__make_status(wuffs_jpeg__error__bad_sof_marker); goto exit; - } else if (v_c == 2u) { + } else if (v_c8 == 2u) { status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_color_model); goto exit; } - self->private_impl.f_num_components = ((uint32_t)(v_c)); + self->private_impl.f_num_components = ((uint32_t)(v_c8)); if (self->private_impl.f_payload_length != (3u * self->private_impl.f_num_components)) { status = wuffs_base__make_status(wuffs_jpeg__error__bad_sof_marker); goto exit; @@ -44927,10 +51078,10 @@ wuffs_jpeg__decoder__decode_sof( goto suspend; } uint8_t t_5 = *iop_a_src++; - v_c = t_5; + v_c8 = t_5; } - v_comp_h = ((uint8_t)(v_c >> 4u)); - v_comp_v = ((uint8_t)(v_c & 15u)); + v_comp_h = ((uint8_t)(v_c8 >> 4u)); + v_comp_v = ((uint8_t)(v_c8 & 15u)); if ((v_comp_h == 0u) || (v_comp_h > 4u) || (v_comp_v == 0u) || @@ -44953,13 +51104,13 @@ wuffs_jpeg__decoder__decode_sof( goto suspend; } uint8_t t_6 = *iop_a_src++; - v_c = t_6; + v_c8 = t_6; } - if (v_c >= 4u) { + if (v_c8 >= 4u) { status = wuffs_base__make_status(wuffs_jpeg__error__bad_sof_marker); goto exit; } - self->private_impl.f_components_tq[v_i] = v_c; + self->private_impl.f_components_tq[v_i] = v_c8; v_j = 0u; while (v_j < v_i) { if (self->private_impl.f_components_c[v_j] == self->private_impl.f_components_c[v_i]) { @@ -45294,14 +51445,27 @@ wuffs_jpeg__decoder__decode_frame( if ((v_ddf_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { v_ddf_status = wuffs_base__make_status(wuffs_jpeg__error__truncated_input); } - if (wuffs_base__status__is_error(&v_ddf_status) || (v_scan_count < self->private_impl.f_scan_count)) { + if ( ! self->private_impl.f_swizzle_immediately && (wuffs_base__status__is_error(&v_ddf_status) || (v_scan_count < self->private_impl.f_scan_count))) { if (self->private_impl.f_sof_marker >= 194u) { wuffs_jpeg__decoder__apply_progressive_idct(self, a_workbuf); } if (self->private_impl.f_num_components == 1u) { - v_swizzle_status = wuffs_jpeg__decoder__swizzle_gray(self, a_dst, a_workbuf); + v_swizzle_status = wuffs_jpeg__decoder__swizzle_gray(self, + a_dst, + a_workbuf, + 0u, + 4294967295u, + 0u, + 4294967295u, + ((uint64_t)(self->private_impl.f_components_workbuf_widths[0u]))); } else { - v_swizzle_status = wuffs_jpeg__decoder__swizzle_colorful(self, a_dst, a_workbuf); + v_swizzle_status = wuffs_jpeg__decoder__swizzle_colorful(self, + a_dst, + a_workbuf, + 0u, + 4294967295u, + 0u, + 4294967295u); } if (wuffs_base__status__is_error(&v_ddf_status)) { status = v_ddf_status; @@ -45348,7 +51512,7 @@ wuffs_jpeg__decoder__do_decode_frame( uint32_t v_pixfmt = 0; wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; + uint8_t v_c8 = 0; uint8_t v_marker = 0; const uint8_t* iop_a_src = NULL; @@ -45406,9 +51570,14 @@ wuffs_jpeg__decoder__do_decode_frame( } goto ok; } + self->private_impl.f_swizzle_immediately = false; if (self->private_impl.f_components_workbuf_offsets[8u] > ((uint64_t)(a_workbuf.len))) { - status = wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); - goto exit; + if ((self->private_impl.f_sof_marker >= 194u) || ! self->private_impl.f_use_lower_quality) { + status = wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); + goto exit; + } + self->private_impl.f_swizzle_immediately = true; + self->private_impl.f_swizzle_immediately_status = wuffs_base__make_status(NULL); } else if (self->private_impl.f_components_workbuf_offsets[4u] < self->private_impl.f_components_workbuf_offsets[8u]) { wuffs_private_impl__bulk_memset(a_workbuf.ptr + self->private_impl.f_components_workbuf_offsets[4u], (self->private_impl.f_components_workbuf_offsets[8u] - self->private_impl.f_components_workbuf_offsets[4u]), 0u); } @@ -45424,9 +51593,9 @@ wuffs_jpeg__decoder__do_decode_frame( goto suspend; } uint8_t t_0 = *iop_a_src++; - v_c = t_0; + v_c8 = t_0; } - if (v_c == 255u) { + if (v_c8 == 255u) { break; } } @@ -45438,10 +51607,10 @@ wuffs_jpeg__decoder__do_decode_frame( goto suspend; } uint8_t t_1 = *iop_a_src++; - v_c = t_1; + v_c8 = t_1; } - if (v_c != 255u) { - v_marker = v_c; + if (v_c8 != 255u) { + v_marker = v_c8; break; } } @@ -45521,7 +51690,7 @@ wuffs_jpeg__decoder__do_decode_frame( a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - status = wuffs_jpeg__decoder__decode_sos(self, a_src, a_workbuf); + status = wuffs_jpeg__decoder__decode_sos(self, a_dst, a_src, a_workbuf); if (a_src) { iop_a_src = a_src->data.ptr + a_src->meta.ri; } @@ -45608,7 +51777,7 @@ wuffs_jpeg__decoder__decode_dht( wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; + uint8_t v_c8 = 0; uint8_t v_tc = 0; uint8_t v_th = 0; uint8_t v_tc4_th = 0; @@ -45637,10 +51806,6 @@ wuffs_jpeg__decoder__decode_dht( switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_sof_marker == 0u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); - goto exit; - } while (self->private_impl.f_payload_length > 0u) { if (self->private_impl.f_payload_length < 17u) { status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); @@ -45654,14 +51819,14 @@ wuffs_jpeg__decoder__decode_dht( goto suspend; } uint8_t t_0 = *iop_a_src++; - v_c = t_0; + v_c8 = t_0; } - if ((((uint8_t)(v_c >> 4u)) > 1u) || (((uint8_t)(v_c & 15u)) > 3u)) { + if ((((uint8_t)(v_c8 >> 4u)) > 1u) || (((uint8_t)(v_c8 & 15u)) > 3u)) { status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); goto exit; } - v_tc = ((uint8_t)(v_c >> 4u)); - v_th = ((uint8_t)(v_c & 15u)); + v_tc = ((uint8_t)(v_c8 >> 4u)); + v_th = ((uint8_t)(v_c8 & 15u)); v_tc4_th = ((uint8_t)(((uint8_t)(((uint8_t)(v_tc * 4u)) | v_th)))); if ((self->private_impl.f_sof_marker == 192u) && (((uint8_t)(v_tc4_th & 3u)) > 1u)) { status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); @@ -45690,59 +51855,596 @@ wuffs_jpeg__decoder__decode_dht( status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); goto exit; } - v_total_count = v_working_total_count; - if (self->private_impl.f_payload_length < v_total_count) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); + v_total_count = v_working_total_count; + if (self->private_impl.f_payload_length < v_total_count) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); + goto exit; + } + self->private_impl.f_payload_length -= v_total_count; + v_i = 0u; + while (v_i < v_total_count) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + self->private_impl.f_huff_tables_symbols[v_tc4_th][v_i] = t_2; + } + v_i += 1u; + } + while (v_i < 256u) { + self->private_impl.f_huff_tables_symbols[v_tc4_th][v_i] = 0u; + v_i += 1u; + } + if (((uint8_t)(v_tc4_th & 4u)) == 0u) { + v_i = 0u; + while (v_i < v_total_count) { + if (self->private_impl.f_huff_tables_symbols[v_tc4_th][v_i] > 15u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); + goto exit; + } + v_i += 1u; + } + } + v_failed = wuffs_jpeg__decoder__calculate_huff_tables(self, v_tc4_th, v_total_count); + if (v_failed) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); + goto exit; + } + self->private_impl.f_seen_dht[v_tc4_th] = true; + } + + goto ok; + ok: + self->private_impl.p_decode_dht = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_dht = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_dht.v_tc4_th = v_tc4_th; + self->private_data.s_decode_dht.v_total_count = v_total_count; + self->private_data.s_decode_dht.v_i = v_i; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func jpeg.decoder.calculate_huff_tables + +WUFFS_BASE__GENERATED_C_CODE +static bool +wuffs_jpeg__decoder__calculate_huff_tables( + wuffs_jpeg__decoder* self, + uint8_t a_tc4_th, + uint32_t a_total_count) { + uint32_t v_i = 0; + uint8_t v_j = 0; + uint8_t v_k = 0; + uint32_t v_bit_length_minus_one = 0; + uint8_t v_bit_length = 0; + uint32_t v_bit_string = 0; + uint32_t v_slow = 0; + uint8_t v_prefix = 0; + uint16_t v_fast = 0; + uint32_t v_reps = 0; + + v_i = 0u; + v_k = 0u; + v_bit_length_minus_one = 0u; + while (v_i < a_total_count) { + while (v_k >= self->private_data.f_dht_temp_counts[v_bit_length_minus_one]) { + v_k = 0u; + v_bit_length_minus_one = ((v_bit_length_minus_one + 1u) & 15u); + } +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_k += 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + self->private_data.f_dht_temp_bit_lengths[v_i] = ((uint8_t)((v_bit_length_minus_one + 1u))); + v_i += 1u; + } + v_bit_length = 0u; + v_bit_string = 0u; + v_i = 0u; + while (v_i < a_total_count) { + while (v_bit_length < self->private_data.f_dht_temp_bit_lengths[v_i]) { + if (v_bit_length >= 16u) { + return true; + } +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_bit_length += 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_bit_string <<= 1u; + } + self->private_data.f_dht_temp_bit_strings[v_i] = ((uint16_t)(v_bit_string)); + v_bit_string += 1u; + if ((v_bit_string >> v_bit_length) > 0u) { + return true; + } + v_i += 1u; + } + v_k = 0u; + v_bit_length_minus_one = 0u; + while (true) { + if (self->private_data.f_dht_temp_counts[v_bit_length_minus_one] == 0u) { + self->private_impl.f_huff_tables_slow[a_tc4_th][v_bit_length_minus_one] = 0u; + } else { + v_slow = (255u & ((uint32_t)(((uint32_t)(v_k)) - ((uint32_t)(self->private_data.f_dht_temp_bit_strings[v_k]))))); +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_k += self->private_data.f_dht_temp_counts[v_bit_length_minus_one]; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + self->private_impl.f_huff_tables_slow[a_tc4_th][v_bit_length_minus_one] = (v_slow | ((((uint32_t)(self->private_data.f_dht_temp_bit_strings[((uint8_t)(v_k - 1u))])) + 1u) << 8u)); + } + v_bit_length_minus_one = ((v_bit_length_minus_one + 1u) & 15u); + if (v_bit_length_minus_one == 0u) { + break; + } + } + v_i = 0u; + while (v_i < 256u) { + self->private_impl.f_huff_tables_fast[a_tc4_th][v_i] = 65535u; + v_i += 1u; + } + v_j = 0u; + v_bit_length_minus_one = 0u; + while (v_bit_length_minus_one < 8u) { + v_k = 0u; + while (v_k < self->private_data.f_dht_temp_counts[v_bit_length_minus_one]) { + v_prefix = ((uint8_t)((((uint32_t)(self->private_data.f_dht_temp_bit_strings[v_j])) << (7u - v_bit_length_minus_one)))); + v_fast = ((uint16_t)(((((uint32_t)((v_bit_length_minus_one + 1u))) << 8u) | ((uint32_t)(self->private_impl.f_huff_tables_symbols[a_tc4_th][v_j]))))); + v_reps = (((uint32_t)(1u)) << (7u - v_bit_length_minus_one)); + while (v_reps > 0u) { + self->private_impl.f_huff_tables_fast[a_tc4_th][v_prefix] = v_fast; +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_prefix += 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_reps -= 1u; + } +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_k += 1u; + v_j += 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } + v_bit_length_minus_one += 1u; + } + return false; +} + +// -------- func jpeg.decoder.decode_sos + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__decode_sos( + wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_my = 0; + uint32_t v_mx = 0; + uint32_t v_decode_mcu_result = 0; + uint32_t v_bitstream_length = 0; + + uint32_t coro_susp_point = self->private_impl.p_decode_sos; + if (coro_susp_point) { + v_my = self->private_data.s_decode_sos.v_my; + v_mx = self->private_data.s_decode_sos.v_mx; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_scan_count >= 32u) { + status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_scan_count); + goto exit; + } else if ((self->private_impl.f_scan_count > 0u) && ! self->private_impl.f_expect_multiple_scans) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_scan_count); + goto exit; + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_jpeg__decoder__prepare_scan(self, a_src); + if (status.repr) { + goto suspend; + } + self->private_impl.f_next_restart_marker = 0u; + self->private_impl.f_mcu_previous_dc_values[0u] = 0u; + self->private_impl.f_mcu_previous_dc_values[1u] = 0u; + self->private_impl.f_mcu_previous_dc_values[2u] = 0u; + self->private_impl.f_mcu_previous_dc_values[3u] = 0u; + self->private_impl.f_restarts_remaining = self->private_impl.f_restart_interval; + self->private_impl.f_eob_run = 0u; + self->private_impl.f_bitstream_bits = 0u; + self->private_impl.f_bitstream_n_bits = 0u; + self->private_impl.f_bitstream_ri = 0u; + self->private_impl.f_bitstream_wi = 0u; + self->private_impl.f_bitstream_padding = 12345u; + wuffs_jpeg__decoder__fill_bitstream(self, a_src); + v_my = 0u; + while (v_my < self->private_impl.f_scan_height_in_mcus) { + v_mx = 0u; + while (v_mx < self->private_impl.f_scan_width_in_mcus) { + self->private_impl.f_mcu_current_block = 0u; + self->private_impl.f_mcu_zig_index = ((uint32_t)(self->private_impl.f_scan_ss)); + if (self->private_impl.f_sof_marker >= 194u) { + wuffs_jpeg__decoder__load_mcu_blocks(self, v_mx, v_my, a_workbuf); + } + while (true) { + v_decode_mcu_result = wuffs_jpeg__decoder__decode_mcu(self, + a_dst, + a_workbuf, + v_mx, + v_my); + if (v_decode_mcu_result == 0u) { + break; + } else if (v_decode_mcu_result == 1u) { + } else if (v_decode_mcu_result == 2u) { + status = wuffs_base__make_status(wuffs_jpeg__error__internal_error_inconsistent_decoder_state); + goto exit; + } else { + status = self->private_impl.f_swizzle_immediately_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + while (true) { + v_bitstream_length = ((uint32_t)(self->private_impl.f_bitstream_wi - self->private_impl.f_bitstream_ri)); + wuffs_jpeg__decoder__fill_bitstream(self, a_src); + if (v_bitstream_length < ((uint32_t)(self->private_impl.f_bitstream_wi - self->private_impl.f_bitstream_ri))) { + break; + } else if (self->private_impl.f_bitstream_padding == 0u) { + status = wuffs_base__make_status(wuffs_jpeg__error__short_sos_bitstream); + goto exit; + } else if ((a_src && a_src->meta.closed) && ! self->private_impl.f_bitstream_is_closed) { + if (self->private_impl.f_bitstream_wi < 1024u) { + wuffs_private_impl__bulk_memset(&self->private_data.f_bitstream_buffer[self->private_impl.f_bitstream_wi], 264u, 0u); + self->private_impl.f_bitstream_wi += 264u; + self->private_impl.f_bitstream_is_closed = true; + } + break; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + } + } + if (self->private_impl.f_sof_marker >= 194u) { + wuffs_jpeg__decoder__save_mcu_blocks(self, v_mx, v_my, a_workbuf); + } + if (self->private_impl.f_restarts_remaining > 0u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_impl.f_restarts_remaining -= 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + if (self->private_impl.f_restarts_remaining == 0u) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + status = wuffs_jpeg__decoder__skip_past_the_next_restart_marker(self, a_src); + if (status.repr) { + goto suspend; + } + self->private_impl.f_mcu_previous_dc_values[0u] = 0u; + self->private_impl.f_mcu_previous_dc_values[1u] = 0u; + self->private_impl.f_mcu_previous_dc_values[2u] = 0u; + self->private_impl.f_mcu_previous_dc_values[3u] = 0u; + self->private_impl.f_restarts_remaining = self->private_impl.f_restart_interval; + self->private_impl.f_eob_run = 0u; + self->private_impl.f_bitstream_bits = 0u; + self->private_impl.f_bitstream_n_bits = 0u; + self->private_impl.f_bitstream_ri = 0u; + self->private_impl.f_bitstream_wi = 0u; + self->private_impl.f_bitstream_padding = 12345u; + } + } + v_mx += 1u; + } + v_my += 1u; + } + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_scan_count, 1u); + + ok: + self->private_impl.p_decode_sos = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_sos = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_sos.v_my = v_my; + self->private_data.s_decode_sos.v_mx = v_mx; + + goto exit; + exit: + return status; +} + +// -------- func jpeg.decoder.prepare_scan + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__prepare_scan( + wuffs_jpeg__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint32_t v_i = 0; + uint32_t v_j = 0; + uint32_t v_j_max_incl = 0; + bool v_failed = false; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_prepare_scan; + if (coro_susp_point) { + v_i = self->private_data.s_prepare_scan.v_i; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if ((self->private_impl.f_payload_length < 6u) || (self->private_impl.f_payload_length > 12u)) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + if ((v_c8 < 1u) || (v_c8 > 4u)) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } + self->private_impl.f_scan_num_components = ((uint32_t)(v_c8)); + if ((self->private_impl.f_scan_num_components > self->private_impl.f_num_components) || (self->private_impl.f_payload_length != (4u + (2u * self->private_impl.f_scan_num_components)))) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } + self->private_impl.f_payload_length = 0u; + v_i = 0u; + while (v_i < self->private_impl.f_scan_num_components) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + v_j = 0u; + while (true) { + if (v_j >= self->private_impl.f_num_components) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } + if (v_c8 == self->private_impl.f_components_c[v_j]) { + if ( ! self->private_impl.f_seen_dqt[self->private_impl.f_components_tq[v_j]]) { + status = wuffs_base__make_status(wuffs_jpeg__error__missing_quantization_table); + goto exit; + } + self->private_impl.f_scan_comps_cselector[v_i] = ((uint8_t)(v_j)); + break; + } + v_j += 1u; + } + v_j = 0u; + while (v_j < v_i) { + if (self->private_impl.f_scan_comps_cselector[v_i] == self->private_impl.f_scan_comps_cselector[v_j]) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } + v_j += 1u; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; + } + if ((((uint8_t)(v_c8 >> 4u)) > 3u) || (((uint8_t)(v_c8 & 15u)) > 3u)) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } + self->private_impl.f_scan_comps_td[v_i] = ((uint8_t)(v_c8 >> 4u)); + self->private_impl.f_scan_comps_ta[v_i] = ((uint8_t)(v_c8 & 15u)); + if (self->private_impl.f_sof_marker == 192u) { + if ((self->private_impl.f_scan_comps_td[v_i] > 1u) || (self->private_impl.f_scan_comps_ta[v_i] > 1u)) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } + } + v_i += 1u; + } + if (self->private_impl.f_scan_count == 0u) { + self->private_impl.f_expect_multiple_scans = ((self->private_impl.f_sof_marker >= 194u) || (self->private_impl.f_scan_num_components < self->private_impl.f_num_components)); + } + if (self->private_impl.f_sof_marker < 194u) { + self->private_data.s_prepare_scan.scratch = 3u; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (self->private_data.s_prepare_scan.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_prepare_scan.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_prepare_scan.scratch; + self->private_impl.f_scan_ss = 0u; + self->private_impl.f_scan_se = 63u; + self->private_impl.f_scan_ah = 0u; + self->private_impl.f_scan_al = 0u; + } else { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_c8 = t_3; + } + if (v_c8 > 63u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } + self->private_impl.f_scan_ss = v_c8; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_4 = *iop_a_src++; + v_c8 = t_4; + } + if ((v_c8 > 63u) || (v_c8 < self->private_impl.f_scan_ss)) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } + self->private_impl.f_scan_se = v_c8; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_5 = *iop_a_src++; + v_c8 = t_5; + } + if ((((uint8_t)(v_c8 >> 4u)) > 14u) || (((uint8_t)(v_c8 & 15u)) > 13u)) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); goto exit; } - self->private_impl.f_payload_length -= v_total_count; - v_i = 0u; - while (v_i < v_total_count) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_2 = *iop_a_src++; - self->private_impl.f_huff_tables_symbols[v_tc4_th][v_i] = t_2; + self->private_impl.f_scan_ah = ((uint8_t)(v_c8 >> 4u)); + self->private_impl.f_scan_al = ((uint8_t)(v_c8 & 15u)); + if (self->private_impl.f_scan_ah > 0u) { + if (((uint8_t)(self->private_impl.f_scan_ah - 1u)) != self->private_impl.f_scan_al) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; } - v_i += 1u; } - while (v_i < 256u) { - self->private_impl.f_huff_tables_symbols[v_tc4_th][v_i] = 0u; - v_i += 1u; + if (self->private_impl.f_scan_ss == 0u) { + if (self->private_impl.f_scan_se != 0u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } else if (self->private_impl.f_scan_ah == 0u) { + self->private_impl.choosy_decode_mcu = ( + &wuffs_jpeg__decoder__decode_mcu_progressive_dc_high_bits); + } else { + self->private_impl.choosy_decode_mcu = ( + &wuffs_jpeg__decoder__decode_mcu_progressive_dc_low_bit); + } + } else { + if (self->private_impl.f_scan_num_components != 1u) { + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); + goto exit; + } else if (self->private_impl.f_scan_ah == 0u) { + self->private_impl.choosy_decode_mcu = ( + &wuffs_jpeg__decoder__decode_mcu_progressive_ac_high_bits); + } else { + self->private_impl.choosy_decode_mcu = ( + &wuffs_jpeg__decoder__decode_mcu_progressive_ac_low_bit); + } } - if (((uint8_t)(v_tc4_th & 4u)) == 0u) { - v_i = 0u; - while (v_i < v_total_count) { - if (self->private_impl.f_huff_tables_symbols[v_tc4_th][v_i] > 15u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); - goto exit; - } - v_i += 1u; + } + v_i = 0u; + while (v_i < self->private_impl.f_scan_num_components) { + if ((self->private_impl.f_scan_ss == 0u) && ! self->private_impl.f_seen_dht[((uint8_t)(0u | self->private_impl.f_scan_comps_td[v_i]))]) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + status = wuffs_jpeg__decoder__use_default_huffman_table(self, ((uint8_t)(0u | self->private_impl.f_scan_comps_td[v_i]))); + if (status.repr) { + goto suspend; } } - v_failed = wuffs_jpeg__decoder__calculate_huff_tables(self, v_tc4_th, v_total_count); + if ((self->private_impl.f_scan_se != 0u) && ! self->private_impl.f_seen_dht[((uint8_t)(4u | self->private_impl.f_scan_comps_ta[v_i]))]) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + status = wuffs_jpeg__decoder__use_default_huffman_table(self, ((uint8_t)(4u | self->private_impl.f_scan_comps_ta[v_i]))); + if (status.repr) { + goto suspend; + } + } + v_j = ((uint32_t)(self->private_impl.f_scan_ss)); + v_j_max_incl = ((uint32_t)(wuffs_base__u8__min(self->private_impl.f_scan_se, 9u))); + while (v_j <= v_j_max_incl) { + self->private_impl.f_block_smoothing_lowest_scan_al[self->private_impl.f_scan_comps_cselector[v_i]][v_j] = self->private_impl.f_scan_al; + v_j += 1u; + } + v_i += 1u; + } + if (self->private_impl.f_scan_num_components == 1u) { + wuffs_jpeg__decoder__calculate_single_component_scan_fields(self); + } else { + v_failed = wuffs_jpeg__decoder__calculate_multiple_component_scan_fields(self); if (v_failed) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_dht_marker); + status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); goto exit; } - self->private_impl.f_seen_dht[v_tc4_th] = true; } goto ok; ok: - self->private_impl.p_decode_dht = 0; + self->private_impl.p_prepare_scan = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_dht = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_dht.v_tc4_th = v_tc4_th; - self->private_data.s_decode_dht.v_total_count = v_total_count; - self->private_data.s_decode_dht.v_i = v_i; + self->private_impl.p_prepare_scan = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_prepare_scan.v_i = v_i; goto exit; exit: @@ -45753,3372 +52455,5798 @@ wuffs_jpeg__decoder__decode_dht( return status; } -// -------- func jpeg.decoder.calculate_huff_tables +// -------- func jpeg.decoder.use_default_huffman_table WUFFS_BASE__GENERATED_C_CODE -static bool -wuffs_jpeg__decoder__calculate_huff_tables( +static wuffs_base__status +wuffs_jpeg__decoder__use_default_huffman_table( wuffs_jpeg__decoder* self, - uint8_t a_tc4_th, - uint32_t a_total_count) { - uint32_t v_i = 0; - uint8_t v_j = 0; - uint8_t v_k = 0; - uint32_t v_bit_length_minus_one = 0; - uint8_t v_bit_length = 0; - uint32_t v_bit_string = 0; - uint32_t v_slow = 0; - uint8_t v_prefix = 0; - uint16_t v_fast = 0; - uint32_t v_reps = 0; + uint8_t a_tc4_th) { + wuffs_base__status status = wuffs_base__make_status(NULL); - v_i = 0u; - v_k = 0u; - v_bit_length_minus_one = 0u; - while (v_i < a_total_count) { - while (v_k >= self->private_data.f_dht_temp_counts[v_bit_length_minus_one]) { - v_k = 0u; - v_bit_length_minus_one = ((v_bit_length_minus_one + 1u) & 15u); + wuffs_base__slice_u8 v_data = {0}; + wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); + wuffs_base__io_buffer* v_r = &u_r; + const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + if (a_tc4_th == 0u) { + v_data = wuffs_base__make_slice_u8(wuffs_base__strip_const_from_u8_ptr(WUFFS_JPEG__DEFAULT_HUFF_TABLE_DC_LUMA), 29); + } else if (a_tc4_th == 1u) { + v_data = wuffs_base__make_slice_u8(wuffs_base__strip_const_from_u8_ptr(WUFFS_JPEG__DEFAULT_HUFF_TABLE_DC_CHROMA), 29); + } else if (a_tc4_th == 4u) { + v_data = wuffs_base__make_slice_u8(wuffs_base__strip_const_from_u8_ptr(WUFFS_JPEG__DEFAULT_HUFF_TABLE_AC_LUMA), 179); + } else if (a_tc4_th == 5u) { + v_data = wuffs_base__make_slice_u8(wuffs_base__strip_const_from_u8_ptr(WUFFS_JPEG__DEFAULT_HUFF_TABLE_AC_CHROMA), 179); + } else { + status = wuffs_base__make_status(wuffs_jpeg__error__missing_huffman_table); + goto exit; + } + { + wuffs_base__io_buffer* o_0_v_r = v_r; + const uint8_t* o_0_iop_v_r = iop_v_r; + const uint8_t* o_0_io0_v_r = io0_v_r; + const uint8_t* o_0_io1_v_r = io1_v_r; + const uint8_t* o_0_io2_v_r = io2_v_r; + v_r = wuffs_private_impl__io_reader__set( + &u_r, + &iop_v_r, + &io0_v_r, + &io1_v_r, + &io2_v_r, + v_data, + 0u); + self->private_impl.f_payload_length = ((uint32_t)((((uint64_t)(v_data.len)) & 65535u))); + { + wuffs_base__status t_0 = wuffs_jpeg__decoder__decode_dht(self, v_r); + v_status = t_0; } -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_k += 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - self->private_data.f_dht_temp_bit_lengths[v_i] = ((uint8_t)((v_bit_length_minus_one + 1u))); - v_i += 1u; + v_r = o_0_v_r; + iop_v_r = o_0_iop_v_r; + io0_v_r = o_0_io0_v_r; + io1_v_r = o_0_io1_v_r; + io2_v_r = o_0_io2_v_r; } - v_bit_length = 0u; - v_bit_string = 0u; + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + + ok: + goto exit; + exit: + return status; +} + +// -------- func jpeg.decoder.calculate_single_component_scan_fields + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_jpeg__decoder__calculate_single_component_scan_fields( + wuffs_jpeg__decoder* self) { + uint8_t v_csel = 0; + + self->private_impl.f_scan_comps_bx_offset[0u] = 0u; + self->private_impl.f_scan_comps_by_offset[0u] = 0u; + self->private_impl.f_mcu_num_blocks = 1u; + self->private_impl.f_mcu_blocks_sselector[0u] = 0u; + v_csel = self->private_impl.f_scan_comps_cselector[0u]; + self->private_impl.f_mcu_blocks_offset[0u] = self->private_impl.f_components_workbuf_offsets[v_csel]; + self->private_impl.f_mcu_blocks_mx_mul[0u] = 8u; + self->private_impl.f_mcu_blocks_my_mul[0u] = (8u * self->private_impl.f_components_workbuf_widths[v_csel]); + self->private_impl.f_mcu_blocks_dc_hselector[0u] = ((uint8_t)(0u | self->private_impl.f_scan_comps_td[0u])); + self->private_impl.f_mcu_blocks_ac_hselector[0u] = ((uint8_t)(4u | self->private_impl.f_scan_comps_ta[0u])); + self->private_impl.f_scan_width_in_mcus = wuffs_jpeg__decoder__quantize_dimension(self, self->private_impl.f_width, self->private_impl.f_components_h[v_csel], self->private_impl.f_max_incl_components_h); + self->private_impl.f_scan_height_in_mcus = wuffs_jpeg__decoder__quantize_dimension(self, self->private_impl.f_height, self->private_impl.f_components_v[v_csel], self->private_impl.f_max_incl_components_v); + return wuffs_base__make_empty_struct(); +} + +// -------- func jpeg.decoder.calculate_multiple_component_scan_fields + +WUFFS_BASE__GENERATED_C_CODE +static bool +wuffs_jpeg__decoder__calculate_multiple_component_scan_fields( + wuffs_jpeg__decoder* self) { + uint32_t v_i = 0; + uint32_t v_h = 0; + uint32_t v_v = 0; + uint32_t v_hv = 0; + uint32_t v_total_hv = 0; + uint32_t v_b = 0; + uint32_t v_bx_offset = 0; + uint32_t v_by_offset = 0; + uint32_t v_sibo = 0; + uint8_t v_ssel = 0; + uint8_t v_csel = 0; + + v_total_hv = 0u; v_i = 0u; - while (v_i < a_total_count) { - while (v_bit_length < self->private_data.f_dht_temp_bit_lengths[v_i]) { - if (v_bit_length >= 16u) { - return true; + v_b = 0u; + v_bx_offset = 0u; + v_by_offset = 0u; + while (v_i < self->private_impl.f_scan_num_components) { + v_h = ((uint32_t)(self->private_impl.f_components_h[self->private_impl.f_scan_comps_cselector[v_i]])); + v_v = ((uint32_t)(self->private_impl.f_components_v[self->private_impl.f_scan_comps_cselector[v_i]])); + v_hv = (((uint32_t)(self->private_impl.f_components_h[self->private_impl.f_scan_comps_cselector[v_i]])) * ((uint32_t)(self->private_impl.f_components_v[self->private_impl.f_scan_comps_cselector[v_i]]))); + self->private_impl.f_swizzle_immediately_c_offsets[v_i] = ((uint32_t)(64u * v_total_hv)); + v_total_hv += v_hv; + while (v_hv > 0u) { + self->private_impl.f_scan_comps_bx_offset[(v_b & 15u)] = ((uint8_t)((v_bx_offset & 3u))); + self->private_impl.f_scan_comps_by_offset[(v_b & 15u)] = ((uint8_t)((v_by_offset & 3u))); + self->private_impl.f_mcu_blocks_sselector[(v_b & 15u)] = ((uint8_t)(v_i)); + v_b += 1u; + v_bx_offset += 1u; + if (v_bx_offset == v_h) { + v_bx_offset = 0u; + v_by_offset += 1u; + if (v_by_offset == v_v) { + v_by_offset = 0u; + } } -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_bit_length += 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - v_bit_string <<= 1u; - } - self->private_data.f_dht_temp_bit_strings[v_i] = ((uint16_t)(v_bit_string)); - v_bit_string += 1u; - if ((v_bit_string >> v_bit_length) > 0u) { - return true; + v_hv -= 1u; } v_i += 1u; } - v_k = 0u; - v_bit_length_minus_one = 0u; - while (true) { - if (self->private_data.f_dht_temp_counts[v_bit_length_minus_one] == 0u) { - self->private_impl.f_huff_tables_slow[a_tc4_th][v_bit_length_minus_one] = 0u; - } else { - v_slow = (255u & ((uint32_t)(((uint32_t)(v_k)) - ((uint32_t)(self->private_data.f_dht_temp_bit_strings[v_k]))))); -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_k += self->private_data.f_dht_temp_counts[v_bit_length_minus_one]; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - self->private_impl.f_huff_tables_slow[a_tc4_th][v_bit_length_minus_one] = (v_slow | ((((uint32_t)(self->private_data.f_dht_temp_bit_strings[((uint8_t)(v_k - 1u))])) + 1u) << 8u)); + if (v_total_hv > 10u) { + return true; + } + self->private_impl.f_mcu_num_blocks = v_total_hv; + self->private_impl.f_swizzle_immediately_c_offsets[self->private_impl.f_scan_num_components] = ((uint32_t)(64u * v_total_hv)); + v_b = 0u; + while (v_b < self->private_impl.f_mcu_num_blocks) { + v_ssel = self->private_impl.f_mcu_blocks_sselector[v_b]; + v_csel = self->private_impl.f_scan_comps_cselector[v_ssel]; + self->private_impl.f_mcu_blocks_offset[v_b] = (self->private_impl.f_components_workbuf_offsets[v_csel] + (8u * ((uint64_t)(self->private_impl.f_scan_comps_bx_offset[v_b]))) + (8u * ((uint64_t)(self->private_impl.f_scan_comps_by_offset[v_b])) * ((uint64_t)(self->private_impl.f_components_workbuf_widths[v_csel])))); + self->private_impl.f_mcu_blocks_mx_mul[v_b] = (8u * ((uint32_t)(self->private_impl.f_components_h[v_csel]))); + self->private_impl.f_mcu_blocks_my_mul[v_b] = (8u * ((uint32_t)(self->private_impl.f_components_v[v_csel])) * self->private_impl.f_components_workbuf_widths[v_csel]); + self->private_impl.f_mcu_blocks_dc_hselector[v_b] = ((uint8_t)(0u | self->private_impl.f_scan_comps_td[v_ssel])); + self->private_impl.f_mcu_blocks_ac_hselector[v_b] = ((uint8_t)(4u | self->private_impl.f_scan_comps_ta[v_ssel])); + v_sibo = ((uint32_t)(self->private_impl.f_swizzle_immediately_c_offsets[v_csel] + ((8u * ((uint32_t)(self->private_impl.f_scan_comps_bx_offset[v_b]))) + (64u * ((uint32_t)(self->private_impl.f_scan_comps_by_offset[v_b])) * ((uint32_t)(self->private_impl.f_components_h[v_csel])))))); + self->private_impl.f_swizzle_immediately_b_offsets[v_b] = wuffs_base__u32__min(v_sibo, 576u); + v_b += 1u; + } + self->private_impl.f_scan_width_in_mcus = self->private_impl.f_width_in_mcus; + self->private_impl.f_scan_height_in_mcus = self->private_impl.f_height_in_mcus; + return false; +} + +// -------- func jpeg.decoder.fill_bitstream + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_jpeg__decoder__fill_bitstream( + wuffs_jpeg__decoder* self, + wuffs_base__io_buffer* a_src) { + uint32_t v_wi = 0; + uint8_t v_c8 = 0; + uint32_t v_new_wi = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + if (self->private_impl.f_bitstream_ri <= 0u) { + } else if (self->private_impl.f_bitstream_ri >= self->private_impl.f_bitstream_wi) { + self->private_impl.f_bitstream_ri = 0u; + self->private_impl.f_bitstream_wi = 0u; + } else { + v_wi = (self->private_impl.f_bitstream_wi - self->private_impl.f_bitstream_ri); + wuffs_private_impl__slice_u8__copy_from_slice(wuffs_base__make_slice_u8(self->private_data.f_bitstream_buffer, 2048), wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, + self->private_impl.f_bitstream_ri, + self->private_impl.f_bitstream_wi)); + self->private_impl.f_bitstream_ri = 0u; + self->private_impl.f_bitstream_wi = v_wi; + } + v_wi = self->private_impl.f_bitstream_wi; + while ((v_wi < 2048u) && (((uint64_t)(io2_a_src - iop_a_src)) > 0u)) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + if (v_c8 < 255u) { + self->private_data.f_bitstream_buffer[v_wi] = v_c8; + v_wi += 1u; + iop_a_src += 1u; + continue; + } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 1u) { + break; } - v_bit_length_minus_one = ((v_bit_length_minus_one + 1u) & 15u); - if (v_bit_length_minus_one == 0u) { + v_c8 = iop_a_src[1u]; + if (v_c8 == 0u) { + self->private_data.f_bitstream_buffer[v_wi] = 255u; + v_wi += 1u; + iop_a_src += 2u; + continue; + } else if (v_c8 < 255u) { break; } + iop_a_src += 1u; } - v_i = 0u; - while (v_i < 256u) { - self->private_impl.f_huff_tables_fast[a_tc4_th][v_i] = 65535u; - v_i += 1u; - } - v_j = 0u; - v_bit_length_minus_one = 0u; - while (v_bit_length_minus_one < 8u) { - v_k = 0u; - while (v_k < self->private_data.f_dht_temp_counts[v_bit_length_minus_one]) { - v_prefix = ((uint8_t)((((uint32_t)(self->private_data.f_dht_temp_bit_strings[v_j])) << (7u - v_bit_length_minus_one)))); - v_fast = ((uint16_t)(((((uint32_t)((v_bit_length_minus_one + 1u))) << 8u) | ((uint32_t)(self->private_impl.f_huff_tables_symbols[a_tc4_th][v_j]))))); - v_reps = (((uint32_t)(1u)) << (7u - v_bit_length_minus_one)); - while (v_reps > 0u) { - self->private_impl.f_huff_tables_fast[a_tc4_th][v_prefix] = v_fast; -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_prefix += 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - v_reps -= 1u; + if (((uint64_t)(io2_a_src - iop_a_src)) > 1u) { + if ((wuffs_base__peek_u8be__no_bounds_check(iop_a_src) >= 255u) && (((uint16_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src) >> 8u)) > 0u)) { + v_new_wi = (wuffs_base__u32__min(v_wi, 1784u) + 264u); + v_new_wi = wuffs_base__u32__min(v_new_wi, (v_wi + self->private_impl.f_bitstream_padding)); + if (v_wi < v_new_wi) { + wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_bitstream_padding, (v_new_wi - v_wi)); + wuffs_private_impl__bulk_memset(&self->private_data.f_bitstream_buffer[v_wi], (v_new_wi - v_wi), 0u); + v_wi = v_new_wi; } -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_k += 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_j += 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif } - v_bit_length_minus_one += 1u; } - return false; + self->private_impl.f_bitstream_wi = v_wi; + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return wuffs_base__make_empty_struct(); +} + +// -------- func jpeg.decoder.load_mcu_blocks_for_single_component + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_jpeg__decoder__load_mcu_blocks_for_single_component( + wuffs_jpeg__decoder* self, + uint32_t a_mx, + uint32_t a_my, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_csel) { + return (*self->private_impl.choosy_load_mcu_blocks_for_single_component)(self, a_mx, a_my, a_workbuf, a_csel); +} + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_jpeg__decoder__load_mcu_blocks_for_single_component__choosy_default( + wuffs_jpeg__decoder* self, + uint32_t a_mx, + uint32_t a_my, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_csel) { + uint64_t v_stride16 = 0; + uint64_t v_offset = 0; + + v_stride16 = ((uint64_t)((self->private_impl.f_components_workbuf_widths[a_csel] * 16u))); + v_offset = (self->private_impl.f_components_workbuf_offsets[(a_csel | 4u)] + (((uint64_t)(a_mx)) * 128u) + (((uint64_t)(a_my)) * v_stride16)); + if (v_offset <= ((uint64_t)(a_workbuf.len))) { + wuffs_private_impl__bulk_load_host_endian(&self->private_data.f_mcu_blocks[0], 1u * (size_t)128u, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset)); + } + return wuffs_base__make_empty_struct(); +} + +// -------- func jpeg.decoder.load_mcu_blocks + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_jpeg__decoder__load_mcu_blocks( + wuffs_jpeg__decoder* self, + uint32_t a_mx, + uint32_t a_my, + wuffs_base__slice_u8 a_workbuf) { + uint32_t v_b = 0; + uint8_t v_csel = 0; + uint64_t v_h = 0; + uint64_t v_v = 0; + uint64_t v_stride16 = 0; + uint64_t v_offset = 0; + + v_h = 1u; + v_v = 1u; + v_b = 0u; + while (v_b < self->private_impl.f_mcu_num_blocks) { + v_csel = self->private_impl.f_scan_comps_cselector[self->private_impl.f_mcu_blocks_sselector[v_b]]; + if (self->private_impl.f_scan_num_components > 1u) { + v_h = ((uint64_t)(self->private_impl.f_components_h[v_csel])); + v_v = ((uint64_t)(self->private_impl.f_components_v[v_csel])); + } + v_stride16 = ((uint64_t)((self->private_impl.f_components_workbuf_widths[v_csel] * 16u))); + v_offset = (self->private_impl.f_components_workbuf_offsets[((uint8_t)(v_csel | 4u))] + (((v_h * ((uint64_t)(a_mx))) + ((uint64_t)(self->private_impl.f_scan_comps_bx_offset[v_b]))) * 128u) + (((v_v * ((uint64_t)(a_my))) + ((uint64_t)(self->private_impl.f_scan_comps_by_offset[v_b]))) * v_stride16)); + if (v_offset <= ((uint64_t)(a_workbuf.len))) { + wuffs_private_impl__bulk_load_host_endian(&self->private_data.f_mcu_blocks[v_b], 1u * (size_t)128u, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset)); + } + v_b += 1u; + } + return wuffs_base__make_empty_struct(); +} + +// -------- func jpeg.decoder.save_mcu_blocks + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_jpeg__decoder__save_mcu_blocks( + wuffs_jpeg__decoder* self, + uint32_t a_mx, + uint32_t a_my, + wuffs_base__slice_u8 a_workbuf) { + uint32_t v_b = 0; + uint8_t v_csel = 0; + uint64_t v_h = 0; + uint64_t v_v = 0; + uint64_t v_stride16 = 0; + uint64_t v_offset = 0; + + v_h = 1u; + v_v = 1u; + v_b = 0u; + while (v_b < self->private_impl.f_mcu_num_blocks) { + v_csel = self->private_impl.f_scan_comps_cselector[self->private_impl.f_mcu_blocks_sselector[v_b]]; + if (self->private_impl.f_scan_num_components > 1u) { + v_h = ((uint64_t)(self->private_impl.f_components_h[v_csel])); + v_v = ((uint64_t)(self->private_impl.f_components_v[v_csel])); + } + v_stride16 = ((uint64_t)((self->private_impl.f_components_workbuf_widths[v_csel] * 16u))); + v_offset = (self->private_impl.f_components_workbuf_offsets[((uint8_t)(v_csel | 4u))] + (((v_h * ((uint64_t)(a_mx))) + ((uint64_t)(self->private_impl.f_scan_comps_bx_offset[v_b]))) * 128u) + (((v_v * ((uint64_t)(a_my))) + ((uint64_t)(self->private_impl.f_scan_comps_by_offset[v_b]))) * v_stride16)); + if (v_offset <= ((uint64_t)(a_workbuf.len))) { + wuffs_private_impl__bulk_save_host_endian(&self->private_data.f_mcu_blocks[v_b], 1u * (size_t)128u, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset)); + } + v_b += 1u; + } + return wuffs_base__make_empty_struct(); } -// -------- func jpeg.decoder.decode_sos +// -------- func jpeg.decoder.skip_past_the_next_restart_marker WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_jpeg__decoder__decode_sos( +wuffs_jpeg__decoder__skip_past_the_next_restart_marker( wuffs_jpeg__decoder* self, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { + wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t v_my = 0; - uint32_t v_mx = 0; - uint32_t v_decode_mcu_result = 0; - uint32_t v_bitstream_length = 0; + uint8_t v_c8 = 0; - uint32_t coro_susp_point = self->private_impl.p_decode_sos; - if (coro_susp_point) { - v_my = self->private_data.s_decode_sos.v_my; - v_mx = self->private_data.s_decode_sos.v_mx; + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } + + uint32_t coro_susp_point = self->private_impl.p_skip_past_the_next_restart_marker; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_scan_count >= 64u) { - status = wuffs_base__make_status(wuffs_jpeg__error__unsupported_scan_count); - goto exit; - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_jpeg__decoder__prepare_scan(self, a_src); - if (status.repr) { - goto suspend; - } - self->private_impl.f_next_restart_marker = 0u; - self->private_impl.f_mcu_previous_dc_values[0u] = 0u; - self->private_impl.f_mcu_previous_dc_values[1u] = 0u; - self->private_impl.f_mcu_previous_dc_values[2u] = 0u; - self->private_impl.f_mcu_previous_dc_values[3u] = 0u; - self->private_impl.f_restarts_remaining = self->private_impl.f_restart_interval; - self->private_impl.f_eob_run = 0u; - self->private_impl.f_bitstream_bits = 0u; - self->private_impl.f_bitstream_n_bits = 0u; - self->private_impl.f_bitstream_ri = 0u; - self->private_impl.f_bitstream_wi = 0u; - self->private_impl.f_bitstream_padding = 12345u; - wuffs_jpeg__decoder__fill_bitstream(self, a_src); - v_my = 0u; - while (v_my < self->private_impl.f_scan_height_in_mcus) { - v_mx = 0u; - while (v_mx < self->private_impl.f_scan_width_in_mcus) { - self->private_impl.f_mcu_current_block = 0u; - self->private_impl.f_mcu_zig_index = ((uint32_t)(self->private_impl.f_scan_ss)); - if (self->private_impl.f_sof_marker >= 194u) { - wuffs_jpeg__decoder__load_mcu_blocks(self, v_mx, v_my, a_workbuf); - } - while (true) { - v_decode_mcu_result = wuffs_jpeg__decoder__decode_mcu(self, a_workbuf, v_mx, v_my); - if (v_decode_mcu_result == 0u) { - break; - } else if (v_decode_mcu_result != 1u) { - status = wuffs_base__make_status(wuffs_jpeg__error__internal_error_inconsistent_decoder_state); - goto exit; - } - while (true) { - v_bitstream_length = ((uint32_t)(self->private_impl.f_bitstream_wi - self->private_impl.f_bitstream_ri)); - wuffs_jpeg__decoder__fill_bitstream(self, a_src); - if (v_bitstream_length < ((uint32_t)(self->private_impl.f_bitstream_wi - self->private_impl.f_bitstream_ri))) { - break; - } else if (self->private_impl.f_bitstream_padding == 0u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } else if ((a_src && a_src->meta.closed) && ! self->private_impl.f_bitstream_is_closed) { - if (self->private_impl.f_bitstream_wi < 1024u) { - wuffs_private_impl__bulk_memset(&self->private_data.f_bitstream_buffer[self->private_impl.f_bitstream_wi], 264u, 0u); - self->private_impl.f_bitstream_wi += 264u; - self->private_impl.f_bitstream_is_closed = true; - } - break; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - } - } - if (self->private_impl.f_sof_marker >= 194u) { - wuffs_jpeg__decoder__save_mcu_blocks(self, v_mx, v_my, a_workbuf); - } - if (self->private_impl.f_restarts_remaining > 0u) { -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - self->private_impl.f_restarts_remaining -= 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - if (self->private_impl.f_restarts_remaining == 0u) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - status = wuffs_jpeg__decoder__skip_past_the_next_restart_marker(self, a_src); - if (status.repr) { - goto suspend; - } - self->private_impl.f_mcu_previous_dc_values[0u] = 0u; - self->private_impl.f_mcu_previous_dc_values[1u] = 0u; - self->private_impl.f_mcu_previous_dc_values[2u] = 0u; - self->private_impl.f_mcu_previous_dc_values[3u] = 0u; - self->private_impl.f_restarts_remaining = self->private_impl.f_restart_interval; - self->private_impl.f_eob_run = 0u; - self->private_impl.f_bitstream_bits = 0u; - self->private_impl.f_bitstream_n_bits = 0u; - self->private_impl.f_bitstream_ri = 0u; - self->private_impl.f_bitstream_wi = 0u; - self->private_impl.f_bitstream_padding = 12345u; - } - } - v_mx += 1u; + while (true) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 2u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + continue; + } else if (wuffs_base__peek_u8be__no_bounds_check(iop_a_src) < 255u) { + iop_a_src += 1u; + continue; + } + v_c8 = ((uint8_t)(((uint16_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src) >> 8u)))); + if (v_c8 < 192u) { + iop_a_src += 2u; + continue; + } else if ((v_c8 < 208u) || (215u < v_c8)) { + break; + } + v_c8 &= 7u; + if ((self->private_impl.f_next_restart_marker == ((uint8_t)(((uint8_t)(v_c8 + 1u)) & 7u))) || (self->private_impl.f_next_restart_marker == ((uint8_t)(((uint8_t)(v_c8 + 2u)) & 7u)))) { + break; + } else if ((self->private_impl.f_next_restart_marker == ((uint8_t)(((uint8_t)(v_c8 + 7u)) & 7u))) || (self->private_impl.f_next_restart_marker == ((uint8_t)(((uint8_t)(v_c8 + 6u)) & 7u)))) { + iop_a_src += 2u; + continue; + } else { + iop_a_src += 2u; + break; } - v_my += 1u; } - wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_scan_count, 1u); + self->private_impl.f_next_restart_marker = ((uint8_t)(((uint8_t)(self->private_impl.f_next_restart_marker + 1u)) & 7u)); ok: - self->private_impl.p_decode_sos = 0; + self->private_impl.p_skip_past_the_next_restart_marker = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_sos = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_sos.v_my = v_my; - self->private_data.s_decode_sos.v_mx = v_mx; + self->private_impl.p_skip_past_the_next_restart_marker = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + return status; } -// -------- func jpeg.decoder.prepare_scan +// -------- func jpeg.decoder.apply_progressive_idct WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_jpeg__decoder__prepare_scan( +static wuffs_base__empty_struct +wuffs_jpeg__decoder__apply_progressive_idct( wuffs_jpeg__decoder* self, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint8_t v_c = 0; - uint32_t v_i = 0; - uint32_t v_j = 0; - uint32_t v_j_max_incl = 0; - bool v_failed = false; - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } + wuffs_base__slice_u8 a_workbuf) { + uint32_t v_csel = 0; + bool v_block_smoothing_applicable = false; + uint32_t v_scan_width_in_mcus = 0; + uint32_t v_scan_height_in_mcus = 0; + uint32_t v_mcu_blocks_mx_mul_0 = 0; + uint32_t v_mcu_blocks_my_mul_0 = 0; + uint32_t v_my = 0; + uint32_t v_mx = 0; + uint64_t v_stride = 0; + uint64_t v_offset = 0; + uint8_t v_stashed_mcu_blocks_0[128] = {0}; - uint32_t coro_susp_point = self->private_impl.p_prepare_scan; - if (coro_susp_point) { - v_i = self->private_data.s_prepare_scan.v_i; + wuffs_private_impl__bulk_save_host_endian(&self->private_data.f_mcu_blocks[0], 1u * (size_t)128u, wuffs_base__make_slice_u8(v_stashed_mcu_blocks_0, 128)); + v_block_smoothing_applicable = true; + v_csel = 0u; + while (v_csel < self->private_impl.f_num_components) { + if ((self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][0u] >= 16u) || wuffs_jpeg__decoder__top_left_quants_has_zero(self, ((uint32_t)(self->private_impl.f_components_tq[v_csel])))) { + v_block_smoothing_applicable = false; + } + v_csel += 1u; } - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - if ((self->private_impl.f_payload_length < 6u) || (self->private_impl.f_payload_length > 12u)) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; + v_csel = 0u; + while (v_csel < self->private_impl.f_num_components) { + v_scan_width_in_mcus = wuffs_jpeg__decoder__quantize_dimension(self, self->private_impl.f_width, self->private_impl.f_components_h[v_csel], self->private_impl.f_max_incl_components_h); + v_scan_height_in_mcus = wuffs_jpeg__decoder__quantize_dimension(self, self->private_impl.f_height, self->private_impl.f_components_v[v_csel], self->private_impl.f_max_incl_components_v); + v_mcu_blocks_mx_mul_0 = 8u; + v_mcu_blocks_my_mul_0 = (8u * self->private_impl.f_components_workbuf_widths[v_csel]); + if (v_block_smoothing_applicable && (0u != (self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][1u] | + self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][2u] | + self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][3u] | + self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][4u] | + self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][5u] | + self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][6u] | + self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][8u] | + self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][8u] | + self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][9u]))) { + self->private_impl.choosy_load_mcu_blocks_for_single_component = ( + &wuffs_jpeg__decoder__load_mcu_blocks_for_single_component_smooth); + self->private_impl.f_block_smoothing_mx_max_incl = wuffs_base__u32__sat_sub(v_scan_width_in_mcus, 1u); + self->private_impl.f_block_smoothing_my_max_incl = wuffs_base__u32__sat_sub(v_scan_height_in_mcus, 1u); + } else { + self->private_impl.choosy_load_mcu_blocks_for_single_component = ( + &wuffs_jpeg__decoder__load_mcu_blocks_for_single_component__choosy_default); } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + v_my = 0u; + while (v_my < v_scan_height_in_mcus) { + v_mx = 0u; + while (v_mx < v_scan_width_in_mcus) { + wuffs_jpeg__decoder__load_mcu_blocks_for_single_component(self, + v_mx, + v_my, + a_workbuf, + v_csel); + v_stride = ((uint64_t)(self->private_impl.f_components_workbuf_widths[v_csel])); + v_offset = (self->private_impl.f_components_workbuf_offsets[v_csel] + (((uint64_t)(v_mcu_blocks_mx_mul_0)) * ((uint64_t)(v_mx))) + (((uint64_t)(v_mcu_blocks_my_mul_0)) * ((uint64_t)(v_my)))); + if (v_offset <= ((uint64_t)(a_workbuf.len))) { + wuffs_jpeg__decoder__decode_idct(self, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset), v_stride, ((uint32_t)(self->private_impl.f_components_tq[v_csel]))); + } + v_mx += 1u; } - uint8_t t_0 = *iop_a_src++; - v_c = t_0; - } - if ((v_c < 1u) || (v_c > 4u)) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; + v_my += 1u; } - self->private_impl.f_scan_num_components = ((uint32_t)(v_c)); - if ((self->private_impl.f_scan_num_components > self->private_impl.f_num_components) || (self->private_impl.f_payload_length != (4u + (2u * self->private_impl.f_scan_num_components)))) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; + v_csel += 1u; + } + wuffs_private_impl__bulk_load_host_endian(&self->private_data.f_mcu_blocks[0], 1u * (size_t)128u, wuffs_base__make_slice_u8(v_stashed_mcu_blocks_0, 128)); + return wuffs_base__make_empty_struct(); +} + +// -------- func jpeg.decoder.swizzle_gray + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__swizzle_gray( + wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_x0, + uint32_t a_x1, + uint32_t a_y0, + uint32_t a_y1, + uint64_t a_stride) { + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint32_t v_dst_bytes_per_pixel = 0; + uint64_t v_x0 = 0; + uint64_t v_x1 = 0; + wuffs_base__table_u8 v_tab = {0}; + wuffs_base__slice_u8 v_dst = {0}; + uint32_t v_y = 0; + uint32_t v_y1 = 0; + + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + return wuffs_base__make_status(wuffs_base__error__unsupported_option); + } + v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); + v_x0 = ((uint64_t)((v_dst_bytes_per_pixel * wuffs_base__u32__min(a_x0, self->private_impl.f_width)))); + v_x1 = ((uint64_t)((v_dst_bytes_per_pixel * wuffs_base__u32__min(a_x1, self->private_impl.f_width)))); + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + v_y = a_y0; + v_y1 = wuffs_base__u32__min(a_y1, self->private_impl.f_height); + while (v_y < v_y1) { + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, v_y); + if (v_x1 < ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_x1); } - self->private_impl.f_payload_length = 0u; - v_i = 0u; - while (v_i < self->private_impl.f_scan_num_components) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_1 = *iop_a_src++; - v_c = t_1; - } - v_j = 0u; - while (true) { - if (v_j >= self->private_impl.f_num_components) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } - if (v_c == self->private_impl.f_components_c[v_j]) { - if ( ! self->private_impl.f_seen_dqt[self->private_impl.f_components_tq[v_j]]) { - status = wuffs_base__make_status(wuffs_jpeg__error__missing_quantization_table); - goto exit; - } - self->private_impl.f_scan_comps_cselector[v_i] = ((uint8_t)(v_j)); - break; - } - v_j += 1u; - } - v_j = 0u; - while (v_j < v_i) { - if (self->private_impl.f_scan_comps_cselector[v_i] == self->private_impl.f_scan_comps_cselector[v_j]) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } - v_j += 1u; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_2 = *iop_a_src++; - v_c = t_2; - } - if ((((uint8_t)(v_c >> 4u)) > 3u) || (((uint8_t)(v_c & 15u)) > 3u)) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } - self->private_impl.f_scan_comps_td[v_i] = ((uint8_t)(v_c >> 4u)); - self->private_impl.f_scan_comps_ta[v_i] = ((uint8_t)(v_c & 15u)); - if (self->private_impl.f_sof_marker == 192u) { - if ((self->private_impl.f_scan_comps_td[v_i] > 1u) || (self->private_impl.f_scan_comps_ta[v_i] > 1u)) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } - } - v_i += 1u; + if (v_x0 < ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_x0); + } else { + v_dst = wuffs_base__utility__empty_slice_u8(); } - if (self->private_impl.f_sof_marker < 194u) { - self->private_data.s_prepare_scan.scratch = 3u; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - if (self->private_data.s_prepare_scan.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_prepare_scan.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_prepare_scan.scratch; - self->private_impl.f_scan_ss = 0u; - self->private_impl.f_scan_se = 63u; - self->private_impl.f_scan_ah = 0u; - self->private_impl.f_scan_al = 0u; + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)), a_workbuf); + if (a_stride <= ((uint64_t)(a_workbuf.len))) { + a_workbuf = wuffs_base__slice_u8__subslice_i(a_workbuf, a_stride); } else { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_3 = *iop_a_src++; - v_c = t_3; - } - if (v_c > 63u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } - self->private_impl.f_scan_ss = v_c; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_4 = *iop_a_src++; - v_c = t_4; - } - if ((v_c > 63u) || (v_c < self->private_impl.f_scan_ss)) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } - self->private_impl.f_scan_se = v_c; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_5 = *iop_a_src++; - v_c = t_5; - } - if ((((uint8_t)(v_c >> 4u)) > 14u) || (((uint8_t)(v_c & 15u)) > 13u)) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } - self->private_impl.f_scan_ah = ((uint8_t)(v_c >> 4u)); - self->private_impl.f_scan_al = ((uint8_t)(v_c & 15u)); - if (self->private_impl.f_scan_ah > 0u) { - if (((uint8_t)(self->private_impl.f_scan_ah - 1u)) != self->private_impl.f_scan_al) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } - } - if (self->private_impl.f_scan_ss == 0u) { - if (self->private_impl.f_scan_se != 0u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } else if (self->private_impl.f_scan_ah == 0u) { - self->private_impl.choosy_decode_mcu = ( - &wuffs_jpeg__decoder__decode_mcu_progressive_dc_high_bits); - } else { - self->private_impl.choosy_decode_mcu = ( - &wuffs_jpeg__decoder__decode_mcu_progressive_dc_low_bit); - } - } else { - if (self->private_impl.f_scan_num_components != 1u) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } else if (self->private_impl.f_scan_ah == 0u) { - self->private_impl.choosy_decode_mcu = ( - &wuffs_jpeg__decoder__decode_mcu_progressive_ac_high_bits); - } else { - self->private_impl.choosy_decode_mcu = ( - &wuffs_jpeg__decoder__decode_mcu_progressive_ac_low_bit); - } - } + a_workbuf = wuffs_base__utility__empty_slice_u8(); } - v_i = 0u; - while (v_i < self->private_impl.f_scan_num_components) { - if ((self->private_impl.f_scan_ss == 0u) && ! self->private_impl.f_seen_dht[((uint8_t)(0u | self->private_impl.f_scan_comps_td[v_i]))]) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - status = wuffs_jpeg__decoder__use_default_huffman_table(self, ((uint8_t)(0u | self->private_impl.f_scan_comps_td[v_i]))); - if (status.repr) { - goto suspend; - } - } - if ((self->private_impl.f_scan_se != 0u) && ! self->private_impl.f_seen_dht[((uint8_t)(4u | self->private_impl.f_scan_comps_ta[v_i]))]) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - status = wuffs_jpeg__decoder__use_default_huffman_table(self, ((uint8_t)(4u | self->private_impl.f_scan_comps_ta[v_i]))); - if (status.repr) { - goto suspend; - } - } - v_j = ((uint32_t)(self->private_impl.f_scan_ss)); - v_j_max_incl = ((uint32_t)(wuffs_base__u8__min(self->private_impl.f_scan_se, 9u))); - while (v_j <= v_j_max_incl) { - self->private_impl.f_block_smoothing_lowest_scan_al[self->private_impl.f_scan_comps_cselector[v_i]][v_j] = self->private_impl.f_scan_al; - v_j += 1u; - } - v_i += 1u; + v_y += 1u; + } + return wuffs_base__make_status(NULL); +} + +// -------- func jpeg.decoder.swizzle_colorful + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_jpeg__decoder__swizzle_colorful( + wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_x0, + uint32_t a_x1, + uint32_t a_y0, + uint32_t a_y1) { + uint64_t v_i = 0; + uint64_t v_j = 0; + wuffs_base__slice_u8 v_src0 = {0}; + wuffs_base__slice_u8 v_src1 = {0}; + wuffs_base__slice_u8 v_src2 = {0}; + wuffs_base__slice_u8 v_src3 = {0}; + uint32_t v_width0 = 0; + uint32_t v_width1 = 0; + uint32_t v_width2 = 0; + uint32_t v_width3 = 0; + uint32_t v_height0 = 0; + uint32_t v_height1 = 0; + uint32_t v_height2 = 0; + uint32_t v_height3 = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + if (self->private_impl.f_swizzle_immediately) { + v_i = ((uint64_t)(self->private_impl.f_swizzle_immediately_c_offsets[0u])); + v_j = ((uint64_t)(self->private_impl.f_swizzle_immediately_c_offsets[1u])); + if ((v_i <= v_j) && (v_j <= 640u)) { + v_src0 = wuffs_base__make_slice_u8_ij(self->private_data.f_swizzle_immediately_buffer, v_i, v_j); + v_width0 = (8u * ((uint32_t)(self->private_impl.f_components_h[0u]))); + v_height0 = (8u * ((uint32_t)(self->private_impl.f_components_v[0u]))); + } + v_i = ((uint64_t)(self->private_impl.f_swizzle_immediately_c_offsets[1u])); + v_j = ((uint64_t)(self->private_impl.f_swizzle_immediately_c_offsets[2u])); + if ((v_i <= v_j) && (v_j <= 640u)) { + v_src1 = wuffs_base__make_slice_u8_ij(self->private_data.f_swizzle_immediately_buffer, v_i, v_j); + v_width1 = (8u * ((uint32_t)(self->private_impl.f_components_h[1u]))); + v_height1 = (8u * ((uint32_t)(self->private_impl.f_components_v[1u]))); + } + v_i = ((uint64_t)(self->private_impl.f_swizzle_immediately_c_offsets[2u])); + v_j = ((uint64_t)(self->private_impl.f_swizzle_immediately_c_offsets[3u])); + if ((v_i <= v_j) && (v_j <= 640u)) { + v_src2 = wuffs_base__make_slice_u8_ij(self->private_data.f_swizzle_immediately_buffer, v_i, v_j); + v_width2 = (8u * ((uint32_t)(self->private_impl.f_components_h[2u]))); + v_height2 = (8u * ((uint32_t)(self->private_impl.f_components_v[2u]))); + } + v_i = ((uint64_t)(self->private_impl.f_swizzle_immediately_c_offsets[3u])); + v_j = ((uint64_t)(self->private_impl.f_swizzle_immediately_c_offsets[4u])); + if ((v_i <= v_j) && (v_j <= 640u)) { + v_src3 = wuffs_base__make_slice_u8_ij(self->private_data.f_swizzle_immediately_buffer, v_i, v_j); + v_width3 = (8u * ((uint32_t)(self->private_impl.f_components_h[3u]))); + v_height3 = (8u * ((uint32_t)(self->private_impl.f_components_v[3u]))); } - if (self->private_impl.f_scan_num_components == 1u) { - wuffs_jpeg__decoder__calculate_single_component_scan_fields(self); - } else { - v_failed = wuffs_jpeg__decoder__calculate_multiple_component_scan_fields(self); - if (v_failed) { - status = wuffs_base__make_status(wuffs_jpeg__error__bad_sos_marker); - goto exit; - } + } else { + if ((self->private_impl.f_components_workbuf_offsets[0u] <= self->private_impl.f_components_workbuf_offsets[1u]) && (self->private_impl.f_components_workbuf_offsets[1u] <= ((uint64_t)(a_workbuf.len)))) { + v_src0 = wuffs_base__slice_u8__subslice_ij(a_workbuf, + self->private_impl.f_components_workbuf_offsets[0u], + self->private_impl.f_components_workbuf_offsets[1u]); + v_width0 = self->private_impl.f_components_workbuf_widths[0u]; + v_height0 = self->private_impl.f_components_workbuf_heights[0u]; + } + if ((self->private_impl.f_components_workbuf_offsets[1u] <= self->private_impl.f_components_workbuf_offsets[2u]) && (self->private_impl.f_components_workbuf_offsets[2u] <= ((uint64_t)(a_workbuf.len)))) { + v_src1 = wuffs_base__slice_u8__subslice_ij(a_workbuf, + self->private_impl.f_components_workbuf_offsets[1u], + self->private_impl.f_components_workbuf_offsets[2u]); + v_width1 = self->private_impl.f_components_workbuf_widths[1u]; + v_height1 = self->private_impl.f_components_workbuf_heights[1u]; + } + if ((self->private_impl.f_components_workbuf_offsets[2u] <= self->private_impl.f_components_workbuf_offsets[3u]) && (self->private_impl.f_components_workbuf_offsets[3u] <= ((uint64_t)(a_workbuf.len)))) { + v_src2 = wuffs_base__slice_u8__subslice_ij(a_workbuf, + self->private_impl.f_components_workbuf_offsets[2u], + self->private_impl.f_components_workbuf_offsets[3u]); + v_width2 = self->private_impl.f_components_workbuf_widths[2u]; + v_height2 = self->private_impl.f_components_workbuf_heights[2u]; + } + if ((self->private_impl.f_components_workbuf_offsets[3u] <= self->private_impl.f_components_workbuf_offsets[4u]) && (self->private_impl.f_components_workbuf_offsets[4u] <= ((uint64_t)(a_workbuf.len)))) { + v_src3 = wuffs_base__slice_u8__subslice_ij(a_workbuf, + self->private_impl.f_components_workbuf_offsets[3u], + self->private_impl.f_components_workbuf_offsets[4u]); + v_width3 = self->private_impl.f_components_workbuf_widths[3u]; + v_height3 = self->private_impl.f_components_workbuf_heights[3u]; } + } + v_status = wuffs_base__pixel_swizzler__swizzle_ycck(&self->private_impl.f_swizzler, + a_dst, + wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)), + (a_x0 & 65535u), + wuffs_base__u32__min(a_x1, self->private_impl.f_width), + (a_y0 & 65535u), + wuffs_base__u32__min(a_y1, self->private_impl.f_height), + v_src0, + v_src1, + v_src2, + v_src3, + v_width0, + v_width1, + v_width2, + v_width3, + v_height0, + v_height1, + v_height2, + v_height3, + v_width0, + v_width1, + v_width2, + v_width3, + self->private_impl.f_components_h[0u], + self->private_impl.f_components_h[1u], + self->private_impl.f_components_h[2u], + self->private_impl.f_components_h[3u], + self->private_impl.f_components_v[0u], + self->private_impl.f_components_v[1u], + self->private_impl.f_components_v[2u], + self->private_impl.f_components_v[3u], + self->private_impl.f_is_rgb_or_cmyk, + ! self->private_impl.f_use_lower_quality, + wuffs_base__make_slice_u8(self->private_data.f_swizzle_ycck_scratch_buffer_2k, 2048)); + return wuffs_private_impl__status__ensure_not_a_suspension(v_status); +} + +// -------- func jpeg.decoder.frame_dirty_rect + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_jpeg__decoder__frame_dirty_rect( + const wuffs_jpeg__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + + return wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height); +} + +// -------- func jpeg.decoder.num_animation_loops + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_jpeg__decoder__num_animation_loops( + const wuffs_jpeg__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } - goto ok; - ok: - self->private_impl.p_prepare_scan = 0; - goto exit; + return 0u; +} + +// -------- func jpeg.decoder.num_decoded_frame_configs + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_jpeg__decoder__num_decoded_frame_configs( + const wuffs_jpeg__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - goto suspend; - suspend: - self->private_impl.p_prepare_scan = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_prepare_scan.v_i = v_i; + if (self->private_impl.f_call_sequence > 32u) { + return 1u; + } + return 0u; +} - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); +// -------- func jpeg.decoder.num_decoded_frames + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_jpeg__decoder__num_decoded_frames( + const wuffs_jpeg__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - return status; + if (self->private_impl.f_call_sequence > 64u) { + return 1u; + } + return 0u; } -// -------- func jpeg.decoder.use_default_huffman_table +// -------- func jpeg.decoder.restart_frame WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_jpeg__decoder__use_default_huffman_table( +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_jpeg__decoder__restart_frame( wuffs_jpeg__decoder* self, - uint8_t a_tc4_th) { - wuffs_base__status status = wuffs_base__make_status(NULL); + uint64_t a_index, + uint64_t a_io_position) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } - wuffs_base__slice_u8 v_data = {0}; - wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); - wuffs_base__io_buffer* v_r = &u_r; - const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint32_t v_i = 0; + uint32_t v_j = 0; - if (a_tc4_th == 0u) { - v_data = wuffs_base__make_slice_u8(wuffs_base__strip_const_from_u8_ptr(WUFFS_JPEG__DEFAULT_HUFF_TABLE_DC_LUMA), 29); - } else if (a_tc4_th == 1u) { - v_data = wuffs_base__make_slice_u8(wuffs_base__strip_const_from_u8_ptr(WUFFS_JPEG__DEFAULT_HUFF_TABLE_DC_CHROMA), 29); - } else if (a_tc4_th == 4u) { - v_data = wuffs_base__make_slice_u8(wuffs_base__strip_const_from_u8_ptr(WUFFS_JPEG__DEFAULT_HUFF_TABLE_AC_LUMA), 179); - } else if (a_tc4_th == 5u) { - v_data = wuffs_base__make_slice_u8(wuffs_base__strip_const_from_u8_ptr(WUFFS_JPEG__DEFAULT_HUFF_TABLE_AC_CHROMA), 179); - } else { - status = wuffs_base__make_status(wuffs_jpeg__error__missing_huffman_table); - goto exit; + if (self->private_impl.f_call_sequence < 32u) { + return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); } - { - wuffs_base__io_buffer* o_0_v_r = v_r; - const uint8_t *o_0_iop_v_r = iop_v_r; - const uint8_t *o_0_io0_v_r = io0_v_r; - const uint8_t *o_0_io1_v_r = io1_v_r; - const uint8_t *o_0_io2_v_r = io2_v_r; - v_r = wuffs_private_impl__io_reader__set( - &u_r, - &iop_v_r, - &io0_v_r, - &io1_v_r, - &io2_v_r, - v_data, - 0u); - self->private_impl.f_payload_length = ((uint32_t)((((uint64_t)(v_data.len)) & 65535u))); - { - wuffs_base__status t_0 = wuffs_jpeg__decoder__decode_dht(self, v_r); - v_status = t_0; + if (a_index != 0u) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + self->private_impl.f_call_sequence = 40u; + self->private_impl.f_bitstream_is_closed = false; + self->private_impl.f_expect_multiple_scans = false; + self->private_impl.f_frame_config_io_position = a_io_position; + self->private_impl.f_scan_count = 0u; + self->private_impl.f_restart_interval = self->private_impl.f_saved_restart_interval; + v_i = 0u; + while (v_i < 4u) { + self->private_impl.f_seen_dqt[v_i] = self->private_impl.f_saved_seen_dqt[v_i]; + v_j = 0u; + while (v_j < 64u) { + self->private_impl.f_quant_tables[v_i][v_j] = self->private_impl.f_saved_quant_tables[v_i][v_j]; + v_j += 1u; } - v_r = o_0_v_r; - iop_v_r = o_0_iop_v_r; - io0_v_r = o_0_io0_v_r; - io1_v_r = o_0_io1_v_r; - io2_v_r = o_0_io2_v_r; + v_i += 1u; } - status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; + v_i = 0u; + while (v_i < 4u) { + v_j = 0u; + while (v_j < 10u) { + self->private_impl.f_block_smoothing_lowest_scan_al[v_i][v_j] = 16u; + v_j += 1u; + } + v_i += 1u; } - goto ok; + v_i = 0u; + while (v_i < 8u) { + self->private_impl.f_seen_dht[v_i] = false; + v_i += 1u; + } + return wuffs_base__make_status(NULL); +} + +// -------- func jpeg.decoder.set_report_metadata + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_jpeg__decoder__set_report_metadata( + wuffs_jpeg__decoder* self, + uint32_t a_fourcc, + bool a_report) { + return wuffs_base__make_empty_struct(); +} + +// -------- func jpeg.decoder.tell_me_more + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_jpeg__decoder__tell_me_more( + wuffs_jpeg__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 4)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + status = wuffs_base__make_status(wuffs_base__error__no_more_information); + goto exit; + + goto ok; ok: goto exit; exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } return status; } -// -------- func jpeg.decoder.calculate_single_component_scan_fields +// -------- func jpeg.decoder.workbuf_len WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_jpeg__decoder__calculate_single_component_scan_fields( - wuffs_jpeg__decoder* self) { - uint8_t v_csel = 0; +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_jpeg__decoder__workbuf_len( + const wuffs_jpeg__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } - self->private_impl.f_scan_comps_bx_offset[0u] = 0u; - self->private_impl.f_scan_comps_by_offset[0u] = 0u; - self->private_impl.f_mcu_num_blocks = 1u; - self->private_impl.f_mcu_blocks_sselector[0u] = 0u; - v_csel = self->private_impl.f_scan_comps_cselector[0u]; - self->private_impl.f_mcu_blocks_offset[0u] = self->private_impl.f_components_workbuf_offsets[v_csel]; - self->private_impl.f_mcu_blocks_mx_mul[0u] = 8u; - self->private_impl.f_mcu_blocks_my_mul[0u] = (8u * self->private_impl.f_components_workbuf_widths[v_csel]); - self->private_impl.f_mcu_blocks_dc_hselector[0u] = ((uint8_t)(0u | self->private_impl.f_scan_comps_td[0u])); - self->private_impl.f_mcu_blocks_ac_hselector[0u] = ((uint8_t)(4u | self->private_impl.f_scan_comps_ta[0u])); - self->private_impl.f_scan_width_in_mcus = wuffs_jpeg__decoder__quantize_dimension(self, self->private_impl.f_width, self->private_impl.f_components_h[v_csel], self->private_impl.f_max_incl_components_h); - self->private_impl.f_scan_height_in_mcus = wuffs_jpeg__decoder__quantize_dimension(self, self->private_impl.f_height, self->private_impl.f_components_v[v_csel], self->private_impl.f_max_incl_components_v); - return wuffs_base__make_empty_struct(); + if (self->private_impl.f_use_lower_quality && (self->private_impl.f_sof_marker < 194u)) { + return wuffs_base__utility__make_range_ii_u64(0u, self->private_impl.f_components_workbuf_offsets[8u]); + } + return wuffs_base__utility__make_range_ii_u64(self->private_impl.f_components_workbuf_offsets[8u], self->private_impl.f_components_workbuf_offsets[8u]); } -// -------- func jpeg.decoder.calculate_multiple_component_scan_fields +// -------- func jpeg.decoder.top_left_quants_has_zero WUFFS_BASE__GENERATED_C_CODE static bool -wuffs_jpeg__decoder__calculate_multiple_component_scan_fields( - wuffs_jpeg__decoder* self) { - uint32_t v_i = 0; - uint32_t v_h = 0; - uint32_t v_v = 0; - uint32_t v_hv = 0; - uint32_t v_total_hv = 0; - uint32_t v_b = 0; - uint32_t v_bx_offset = 0; - uint32_t v_by_offset = 0; - uint8_t v_ssel = 0; - uint8_t v_csel = 0; +wuffs_jpeg__decoder__top_left_quants_has_zero( + const wuffs_jpeg__decoder* self, + uint32_t a_q) { + return ((self->private_impl.f_quant_tables[a_q][0u] == 0u) || + (self->private_impl.f_quant_tables[a_q][1u] == 0u) || + (self->private_impl.f_quant_tables[a_q][2u] == 0u) || + (self->private_impl.f_quant_tables[a_q][3u] == 0u) || + (self->private_impl.f_quant_tables[a_q][8u] == 0u) || + (self->private_impl.f_quant_tables[a_q][9u] == 0u) || + (self->private_impl.f_quant_tables[a_q][10u] == 0u) || + (self->private_impl.f_quant_tables[a_q][16u] == 0u) || + (self->private_impl.f_quant_tables[a_q][17u] == 0u) || + (self->private_impl.f_quant_tables[a_q][24u] == 0u)); +} - v_total_hv = 0u; - v_i = 0u; - v_b = 0u; - v_bx_offset = 0u; - v_by_offset = 0u; - while (v_i < self->private_impl.f_scan_num_components) { - v_h = ((uint32_t)(self->private_impl.f_components_h[self->private_impl.f_scan_comps_cselector[v_i]])); - v_v = ((uint32_t)(self->private_impl.f_components_v[self->private_impl.f_scan_comps_cselector[v_i]])); - v_hv = (((uint32_t)(self->private_impl.f_components_h[self->private_impl.f_scan_comps_cselector[v_i]])) * ((uint32_t)(self->private_impl.f_components_v[self->private_impl.f_scan_comps_cselector[v_i]]))); - v_total_hv += v_hv; - while (v_hv > 0u) { - self->private_impl.f_scan_comps_bx_offset[(v_b & 15u)] = ((uint8_t)((v_bx_offset & 3u))); - self->private_impl.f_scan_comps_by_offset[(v_b & 15u)] = ((uint8_t)((v_by_offset & 3u))); - self->private_impl.f_mcu_blocks_sselector[(v_b & 15u)] = ((uint8_t)(v_i)); - v_b += 1u; - v_bx_offset += 1u; - if (v_bx_offset == v_h) { - v_bx_offset = 0u; - v_by_offset += 1u; - if (v_by_offset == v_v) { - v_by_offset = 0u; - } +// -------- func jpeg.decoder.load_mcu_blocks_for_single_component_smooth + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_jpeg__decoder__load_mcu_blocks_for_single_component_smooth( + wuffs_jpeg__decoder* self, + uint32_t a_mx, + uint32_t a_my, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_csel) { + uint64_t v_stride16 = 0; + uint64_t v_offset = 0; + uint32_t v_dx = 0; + uint32_t v_dy = 0; + uint32_t v_mx = 0; + uint32_t v_my = 0; + uint8_t v_q = 0; + uint32_t v_q_00 = 0; + uint32_t v_q_xy = 0; + uint8_t v_al = 0; + uint32_t v_scratch = 0; + uint32_t v_limit = 0; + + v_stride16 = ((uint64_t)((self->private_impl.f_components_workbuf_widths[a_csel] * 16u))); + v_offset = (self->private_impl.f_components_workbuf_offsets[(a_csel | 4u)] + (((uint64_t)(a_mx)) * 128u) + (((uint64_t)(a_my)) * v_stride16)); + if (v_offset <= ((uint64_t)(a_workbuf.len))) { + wuffs_private_impl__bulk_load_host_endian(&self->private_data.f_mcu_blocks[0], 1u * (size_t)128u, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset)); + } + v_dy = 0u; + while (v_dy < 5u) { + v_my = wuffs_base__u32__min(self->private_impl.f_block_smoothing_my_max_incl, wuffs_base__u32__sat_sub((a_my + v_dy), 2u)); + v_dx = 0u; + while (v_dx < 5u) { + v_mx = wuffs_base__u32__min(self->private_impl.f_block_smoothing_mx_max_incl, wuffs_base__u32__sat_sub((a_mx + v_dx), 2u)); + v_offset = (self->private_impl.f_components_workbuf_offsets[(a_csel | 4u)] + (((uint64_t)(v_mx)) * 128u) + (((uint64_t)(v_my)) * v_stride16)); + if (v_offset <= ((uint64_t)(a_workbuf.len))) { + wuffs_private_impl__bulk_load_host_endian(&self->private_impl.f_block_smoothing_dc_values[v_dy][v_dx], 1u * (size_t)2u, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset)); + } + v_dx += 1u; + } + v_dy += 1u; + } + v_q = self->private_impl.f_components_tq[a_csel]; + v_q_00 = ((uint32_t)(self->private_impl.f_quant_tables[v_q][0u])); + if (v_q_00 <= 0u) { + return wuffs_base__make_empty_struct(); + } + if (0u != (16u & + self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][1u] & + self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][2u] & + self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][3u] & + self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][4u] & + self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][5u] & + self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][6u] & + self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][7u] & + self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][8u] & + self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][9u])) { + v_scratch = 0u; + v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(4294967288u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(6u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(42u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(6u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(4294967288u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(42u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(152u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(42u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(4294967288u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(6u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(42u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(6u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(4294967288u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + 128u)) / 256u))); + } else { + v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + 128u)) / 256u))); + } + self->private_data.f_mcu_blocks[0u][0u] = ((uint16_t)(v_scratch)); + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][1u])); + if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][1u] == 0u)) { + v_scratch = 0u; + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(4294967283u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(38u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(4294967258u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(4294967283u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } else { + v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } + self->private_data.f_mcu_blocks[0u][1u] = ((uint16_t)(v_scratch)); + } + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][2u])); + if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][2u] == 0u)) { + v_scratch = 0u; + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(4294967291u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(4294967282u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(4294967291u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } else { + v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } + self->private_data.f_mcu_blocks[0u][2u] = ((uint16_t)(v_scratch)); + } + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][3u])); + if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][3u] == 0u)) { + v_scratch = 0u; + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } else { + v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } + self->private_data.f_mcu_blocks[0u][3u] = ((uint16_t)(v_scratch)); + } + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][8u])); + if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][8u] == 0u)) { + v_scratch = 0u; + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(38u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(4294967283u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(4294967258u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(4294967283u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } else { + v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); } - v_hv -= 1u; - } - v_i += 1u; - } - if (v_total_hv > 10u) { - return true; - } - self->private_impl.f_mcu_num_blocks = v_total_hv; - v_b = 0u; - while (v_b < self->private_impl.f_mcu_num_blocks) { - v_ssel = self->private_impl.f_mcu_blocks_sselector[v_b]; - v_csel = self->private_impl.f_scan_comps_cselector[v_ssel]; - self->private_impl.f_mcu_blocks_offset[v_b] = (self->private_impl.f_components_workbuf_offsets[v_csel] + (8u * ((uint64_t)(self->private_impl.f_scan_comps_bx_offset[v_b]))) + (8u * ((uint64_t)(self->private_impl.f_scan_comps_by_offset[v_b])) * ((uint64_t)(self->private_impl.f_components_workbuf_widths[v_csel])))); - self->private_impl.f_mcu_blocks_mx_mul[v_b] = (8u * ((uint32_t)(self->private_impl.f_components_h[v_csel]))); - self->private_impl.f_mcu_blocks_my_mul[v_b] = (8u * ((uint32_t)(self->private_impl.f_components_v[v_csel])) * self->private_impl.f_components_workbuf_widths[v_csel]); - self->private_impl.f_mcu_blocks_dc_hselector[v_b] = ((uint8_t)(0u | self->private_impl.f_scan_comps_td[v_ssel])); - self->private_impl.f_mcu_blocks_ac_hselector[v_b] = ((uint8_t)(4u | self->private_impl.f_scan_comps_ta[v_ssel])); - v_b += 1u; - } - self->private_impl.f_scan_width_in_mcus = self->private_impl.f_width_in_mcus; - self->private_impl.f_scan_height_in_mcus = self->private_impl.f_height_in_mcus; - return false; -} - -// -------- func jpeg.decoder.fill_bitstream - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_jpeg__decoder__fill_bitstream( - wuffs_jpeg__decoder* self, - wuffs_base__io_buffer* a_src) { - uint32_t v_wi = 0; - uint8_t v_c = 0; - uint32_t v_new_wi = 0; - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } - - if (self->private_impl.f_bitstream_ri <= 0u) { - } else if (self->private_impl.f_bitstream_ri >= self->private_impl.f_bitstream_wi) { - self->private_impl.f_bitstream_ri = 0u; - self->private_impl.f_bitstream_wi = 0u; - } else { - v_wi = (self->private_impl.f_bitstream_wi - self->private_impl.f_bitstream_ri); - wuffs_private_impl__slice_u8__copy_from_slice(wuffs_base__make_slice_u8(self->private_data.f_bitstream_buffer, 2048), wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, - self->private_impl.f_bitstream_ri, - self->private_impl.f_bitstream_wi)); - self->private_impl.f_bitstream_ri = 0u; - self->private_impl.f_bitstream_wi = v_wi; - } - v_wi = self->private_impl.f_bitstream_wi; - while ((v_wi < 2048u) && (((uint64_t)(io2_a_src - iop_a_src)) > 0u)) { - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - if (v_c < 255u) { - self->private_data.f_bitstream_buffer[v_wi] = v_c; - v_wi += 1u; - iop_a_src += 1u; - continue; - } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 1u) { - break; - } else if (((uint16_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src) >> 8u)) > 0u) { - break; - } else { - self->private_data.f_bitstream_buffer[v_wi] = 255u; - v_wi += 1u; - iop_a_src += 2u; + self->private_data.f_mcu_blocks[0u][8u] = ((uint16_t)(v_scratch)); } - } - if (((uint64_t)(io2_a_src - iop_a_src)) > 1u) { - if ((wuffs_base__peek_u8be__no_bounds_check(iop_a_src) >= 255u) && (((uint16_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src) >> 8u)) > 0u)) { - v_new_wi = (wuffs_base__u32__min(v_wi, 1784u) + 264u); - v_new_wi = wuffs_base__u32__min(v_new_wi, (v_wi + self->private_impl.f_bitstream_padding)); - if (v_wi < v_new_wi) { - wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_bitstream_padding, (v_new_wi - v_wi)); - wuffs_private_impl__bulk_memset(&self->private_data.f_bitstream_buffer[v_wi], (v_new_wi - v_wi), 0u); - v_wi = v_new_wi; + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][9u])); + if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][9u] == 0u)) { + v_scratch = 0u; + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(9u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(4294967287u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(4294967287u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(9u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } else { + v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); } + self->private_data.f_mcu_blocks[0u][9u] = ((uint16_t)(v_scratch)); } - } - self->private_impl.f_bitstream_wi = v_wi; - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - - return wuffs_base__make_empty_struct(); -} - -// -------- func jpeg.decoder.load_mcu_blocks_for_single_component - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_jpeg__decoder__load_mcu_blocks_for_single_component( - wuffs_jpeg__decoder* self, - uint32_t a_mx, - uint32_t a_my, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_csel) { - return (*self->private_impl.choosy_load_mcu_blocks_for_single_component)(self, a_mx, a_my, a_workbuf, a_csel); -} - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_jpeg__decoder__load_mcu_blocks_for_single_component__choosy_default( - wuffs_jpeg__decoder* self, - uint32_t a_mx, - uint32_t a_my, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_csel) { - uint64_t v_stride16 = 0; - uint64_t v_offset = 0; - - v_stride16 = ((uint64_t)((self->private_impl.f_components_workbuf_widths[a_csel] * 16u))); - v_offset = (self->private_impl.f_components_workbuf_offsets[(a_csel | 4u)] + (((uint64_t)(a_mx)) * 128u) + (((uint64_t)(a_my)) * v_stride16)); - if (v_offset <= ((uint64_t)(a_workbuf.len))) { - wuffs_private_impl__bulk_load_host_endian(&self->private_data.f_mcu_blocks[0], 1u * (size_t)128u, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset)); - } - return wuffs_base__make_empty_struct(); -} - -// -------- func jpeg.decoder.load_mcu_blocks - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_jpeg__decoder__load_mcu_blocks( - wuffs_jpeg__decoder* self, - uint32_t a_mx, - uint32_t a_my, - wuffs_base__slice_u8 a_workbuf) { - uint32_t v_b = 0; - uint8_t v_csel = 0; - uint64_t v_h = 0; - uint64_t v_v = 0; - uint64_t v_stride16 = 0; - uint64_t v_offset = 0; - - v_h = 1u; - v_v = 1u; - v_b = 0u; - while (v_b < self->private_impl.f_mcu_num_blocks) { - v_csel = self->private_impl.f_scan_comps_cselector[self->private_impl.f_mcu_blocks_sselector[v_b]]; - if (self->private_impl.f_scan_num_components > 1u) { - v_h = ((uint64_t)(self->private_impl.f_components_h[v_csel])); - v_v = ((uint64_t)(self->private_impl.f_components_v[v_csel])); + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][10u])); + if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][10u] == 0u)) { + v_scratch = 0u; + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } else { + v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } + self->private_data.f_mcu_blocks[0u][10u] = ((uint16_t)(v_scratch)); } - v_stride16 = ((uint64_t)((self->private_impl.f_components_workbuf_widths[v_csel] * 16u))); - v_offset = (self->private_impl.f_components_workbuf_offsets[((uint8_t)(v_csel | 4u))] + (((v_h * ((uint64_t)(a_mx))) + ((uint64_t)(self->private_impl.f_scan_comps_bx_offset[v_b]))) * 128u) + (((v_v * ((uint64_t)(a_my))) + ((uint64_t)(self->private_impl.f_scan_comps_by_offset[v_b]))) * v_stride16)); - if (v_offset <= ((uint64_t)(a_workbuf.len))) { - wuffs_private_impl__bulk_load_host_endian(&self->private_data.f_mcu_blocks[v_b], 1u * (size_t)128u, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset)); + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][16u])); + if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][16u] == 0u)) { + v_scratch = 0u; + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(4294967291u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(4294967282u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(4294967291u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } else { + v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } + self->private_data.f_mcu_blocks[0u][16u] = ((uint16_t)(v_scratch)); } - v_b += 1u; - } - return wuffs_base__make_empty_struct(); -} - -// -------- func jpeg.decoder.save_mcu_blocks - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_jpeg__decoder__save_mcu_blocks( - wuffs_jpeg__decoder* self, - uint32_t a_mx, - uint32_t a_my, - wuffs_base__slice_u8 a_workbuf) { - uint32_t v_b = 0; - uint8_t v_csel = 0; - uint64_t v_h = 0; - uint64_t v_v = 0; - uint64_t v_stride16 = 0; - uint64_t v_offset = 0; - - v_h = 1u; - v_v = 1u; - v_b = 0u; - while (v_b < self->private_impl.f_mcu_num_blocks) { - v_csel = self->private_impl.f_scan_comps_cselector[self->private_impl.f_mcu_blocks_sselector[v_b]]; - if (self->private_impl.f_scan_num_components > 1u) { - v_h = ((uint64_t)(self->private_impl.f_components_h[v_csel])); - v_v = ((uint64_t)(self->private_impl.f_components_v[v_csel])); + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][17u])); + if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][17u] == 0u)) { + v_scratch = 0u; + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } else { + v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } + self->private_data.f_mcu_blocks[0u][17u] = ((uint16_t)(v_scratch)); } - v_stride16 = ((uint64_t)((self->private_impl.f_components_workbuf_widths[v_csel] * 16u))); - v_offset = (self->private_impl.f_components_workbuf_offsets[((uint8_t)(v_csel | 4u))] + (((v_h * ((uint64_t)(a_mx))) + ((uint64_t)(self->private_impl.f_scan_comps_bx_offset[v_b]))) * 128u) + (((v_v * ((uint64_t)(a_my))) + ((uint64_t)(self->private_impl.f_scan_comps_by_offset[v_b]))) * v_stride16)); - if (v_offset <= ((uint64_t)(a_workbuf.len))) { - wuffs_private_impl__bulk_save_host_endian(&self->private_data.f_mcu_blocks[v_b], 1u * (size_t)128u, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset)); + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][24u])); + if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][24u] == 0u)) { + v_scratch = 0u; + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } else { + v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + } + self->private_data.f_mcu_blocks[0u][24u] = ((uint16_t)(v_scratch)); } - v_b += 1u; - } - return wuffs_base__make_empty_struct(); -} - -// -------- func jpeg.decoder.skip_past_the_next_restart_marker - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_jpeg__decoder__skip_past_the_next_restart_marker( - wuffs_jpeg__decoder* self, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint8_t v_c = 0; - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } - - uint32_t coro_susp_point = self->private_impl.p_skip_past_the_next_restart_marker; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 2u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - continue; - } else if (wuffs_base__peek_u8be__no_bounds_check(iop_a_src) < 255u) { - iop_a_src += 1u; - continue; + } else { + v_al = self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][1u]; + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][1u])); + if ((v_al > 0u) && (v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][1u] == 0u)) { + v_limit = ((((uint32_t)(1u)) << v_al) - 1u); + v_scratch = 0u; + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(4294967289u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(50u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(4294967246u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); + } else { + v_scratch = ((uint32_t)(0u - wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); } - v_c = ((uint8_t)(((uint16_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src) >> 8u)))); - if (v_c < 192u) { - iop_a_src += 2u; - continue; - } else if ((v_c < 208u) || (215u < v_c)) { - break; + self->private_data.f_mcu_blocks[0u][1u] = ((uint16_t)(v_scratch)); + } + v_al = self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][5u]; + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][2u])); + if ((v_al > 0u) && (v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][2u] == 0u)) { + v_limit = ((((uint32_t)(1u)) << v_al) - 1u); + v_scratch = 0u; + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(4294967272u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); + } else { + v_scratch = ((uint32_t)(0u - wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); } - v_c &= 7u; - if ((self->private_impl.f_next_restart_marker == ((uint8_t)(((uint8_t)(v_c + 1u)) & 7u))) || (self->private_impl.f_next_restart_marker == ((uint8_t)(((uint8_t)(v_c + 2u)) & 7u)))) { - break; - } else if ((self->private_impl.f_next_restart_marker == ((uint8_t)(((uint8_t)(v_c + 7u)) & 7u))) || (self->private_impl.f_next_restart_marker == ((uint8_t)(((uint8_t)(v_c + 6u)) & 7u)))) { - iop_a_src += 2u; - continue; + self->private_data.f_mcu_blocks[0u][2u] = ((uint16_t)(v_scratch)); + } + v_al = self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][2u]; + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][8u])); + if ((v_al > 0u) && (v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][8u] == 0u)) { + v_limit = ((((uint32_t)(1u)) << v_al) - 1u); + v_scratch = 0u; + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(4294967289u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(50u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(4294967246u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); } else { - iop_a_src += 2u; - break; + v_scratch = ((uint32_t)(0u - wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); } + self->private_data.f_mcu_blocks[0u][8u] = ((uint16_t)(v_scratch)); } - self->private_impl.f_next_restart_marker = ((uint8_t)(((uint8_t)(self->private_impl.f_next_restart_marker + 1u)) & 7u)); - - ok: - self->private_impl.p_skip_past_the_next_restart_marker = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_skip_past_the_next_restart_marker = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - - return status; -} - -// -------- func jpeg.decoder.apply_progressive_idct - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_jpeg__decoder__apply_progressive_idct( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_workbuf) { - uint32_t v_csel = 0; - bool v_block_smoothing_applicable = false; - uint32_t v_scan_width_in_mcus = 0; - uint32_t v_scan_height_in_mcus = 0; - uint32_t v_mcu_blocks_mx_mul_0 = 0; - uint32_t v_mcu_blocks_my_mul_0 = 0; - uint32_t v_my = 0; - uint32_t v_mx = 0; - uint64_t v_stride = 0; - uint64_t v_offset = 0; - uint8_t v_stashed_mcu_blocks_0[128] = {0}; - - wuffs_private_impl__bulk_save_host_endian(&self->private_data.f_mcu_blocks[0], 1u * (size_t)128u, wuffs_base__make_slice_u8(v_stashed_mcu_blocks_0, 128)); - v_block_smoothing_applicable = true; - v_csel = 0u; - while (v_csel < self->private_impl.f_num_components) { - if ((self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][0u] >= 16u) || wuffs_jpeg__decoder__top_left_quants_has_zero(self, ((uint32_t)(self->private_impl.f_components_tq[v_csel])))) { - v_block_smoothing_applicable = false; - } - v_csel += 1u; - } - v_csel = 0u; - while (v_csel < self->private_impl.f_num_components) { - v_scan_width_in_mcus = wuffs_jpeg__decoder__quantize_dimension(self, self->private_impl.f_width, self->private_impl.f_components_h[v_csel], self->private_impl.f_max_incl_components_h); - v_scan_height_in_mcus = wuffs_jpeg__decoder__quantize_dimension(self, self->private_impl.f_height, self->private_impl.f_components_v[v_csel], self->private_impl.f_max_incl_components_v); - v_mcu_blocks_mx_mul_0 = 8u; - v_mcu_blocks_my_mul_0 = (8u * self->private_impl.f_components_workbuf_widths[v_csel]); - if (v_block_smoothing_applicable && (0u != (self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][1u] | - self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][2u] | - self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][3u] | - self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][4u] | - self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][5u] | - self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][6u] | - self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][8u] | - self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][8u] | - self->private_impl.f_block_smoothing_lowest_scan_al[v_csel][9u]))) { - self->private_impl.choosy_load_mcu_blocks_for_single_component = ( - &wuffs_jpeg__decoder__load_mcu_blocks_for_single_component_smooth); - self->private_impl.f_block_smoothing_mx_max_incl = wuffs_base__u32__sat_sub(v_scan_width_in_mcus, 1u); - self->private_impl.f_block_smoothing_my_max_incl = wuffs_base__u32__sat_sub(v_scan_height_in_mcus, 1u); - } else { - self->private_impl.choosy_load_mcu_blocks_for_single_component = ( - &wuffs_jpeg__decoder__load_mcu_blocks_for_single_component__choosy_default); + v_al = self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][4u]; + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][9u])); + if ((v_al > 0u) && (v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][9u] == 0u)) { + v_limit = ((((uint32_t)(1u)) << v_al) - 1u); + v_scratch = 0u; + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(10u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(4294967286u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(4294967286u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(10u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); + } else { + v_scratch = ((uint32_t)(0u - wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); + } + self->private_data.f_mcu_blocks[0u][9u] = ((uint16_t)(v_scratch)); } - v_my = 0u; - while (v_my < v_scan_height_in_mcus) { - v_mx = 0u; - while (v_mx < v_scan_width_in_mcus) { - wuffs_jpeg__decoder__load_mcu_blocks_for_single_component(self, - v_mx, - v_my, - a_workbuf, - v_csel); - v_stride = ((uint64_t)(self->private_impl.f_components_workbuf_widths[v_csel])); - v_offset = (self->private_impl.f_components_workbuf_offsets[v_csel] + (((uint64_t)(v_mcu_blocks_mx_mul_0)) * ((uint64_t)(v_mx))) + (((uint64_t)(v_mcu_blocks_my_mul_0)) * ((uint64_t)(v_my)))); - if (v_offset <= ((uint64_t)(a_workbuf.len))) { - wuffs_jpeg__decoder__decode_idct(self, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset), v_stride, ((uint32_t)(self->private_impl.f_components_tq[v_csel]))); - } - v_mx += 1u; + v_al = self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][3u]; + v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][16u])); + if ((v_al > 0u) && (v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][16u] == 0u)) { + v_limit = ((((uint32_t)(1u)) << v_al) - 1u); + v_scratch = 0u; + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); + v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); + v_scratch += ((uint32_t)(4294967272u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); + v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); + v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); + v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); + v_scratch *= v_q_00; + if (v_scratch < 2147483648u) { + v_scratch = ((uint32_t)(0u + wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); + } else { + v_scratch = ((uint32_t)(0u - wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); } - v_my += 1u; + self->private_data.f_mcu_blocks[0u][16u] = ((uint16_t)(v_scratch)); } - v_csel += 1u; } - wuffs_private_impl__bulk_load_host_endian(&self->private_data.f_mcu_blocks[0], 1u * (size_t)128u, wuffs_base__make_slice_u8(v_stashed_mcu_blocks_0, 128)); return wuffs_base__make_empty_struct(); } -// -------- func jpeg.decoder.swizzle_gray +// -------- func jpeg.decoder.decode_mcu WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_jpeg__decoder__swizzle_gray( +static uint32_t +wuffs_jpeg__decoder__decode_mcu( wuffs_jpeg__decoder* self, wuffs_base__pixel_buffer* a_dst, - wuffs_base__slice_u8 a_workbuf) { - wuffs_base__pixel_format v_dst_pixfmt = {0}; - uint32_t v_dst_bits_per_pixel = 0; - uint32_t v_dst_bytes_per_pixel = 0; - uint64_t v_dst_length = 0; - wuffs_base__table_u8 v_tab = {0}; - wuffs_base__slice_u8 v_dst = {0}; - uint32_t v_y = 0; - uint64_t v_stride = 0; - - v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); - v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); - if ((v_dst_bits_per_pixel & 7u) != 0u) { - return wuffs_base__make_status(wuffs_base__error__unsupported_option); - } - v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); - v_dst_length = ((uint64_t)((v_dst_bytes_per_pixel * self->private_impl.f_width))); - v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); - v_y = 0u; - while (v_y < self->private_impl.f_height) { - v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, v_y); - if (v_dst_length < ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_length); - } - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)), a_workbuf); - v_stride = ((uint64_t)(self->private_impl.f_components_workbuf_widths[0u])); - if (v_stride <= ((uint64_t)(a_workbuf.len))) { - a_workbuf = wuffs_base__slice_u8__subslice_i(a_workbuf, v_stride); - } else { - a_workbuf = wuffs_base__utility__empty_slice_u8(); - } - v_y += 1u; - } - return wuffs_base__make_status(NULL); + wuffs_base__slice_u8 a_workbuf, + uint32_t a_mx, + uint32_t a_my) { + return (*self->private_impl.choosy_decode_mcu)(self, a_dst, a_workbuf, a_mx, a_my); } -// -------- func jpeg.decoder.swizzle_colorful - WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_jpeg__decoder__swizzle_colorful( +static uint32_t +wuffs_jpeg__decoder__decode_mcu__choosy_default( wuffs_jpeg__decoder* self, wuffs_base__pixel_buffer* a_dst, - wuffs_base__slice_u8 a_workbuf) { - wuffs_base__slice_u8 v_src0 = {0}; - wuffs_base__slice_u8 v_src1 = {0}; - wuffs_base__slice_u8 v_src2 = {0}; - wuffs_base__slice_u8 v_src3 = {0}; - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - if ((self->private_impl.f_components_workbuf_offsets[0u] <= self->private_impl.f_components_workbuf_offsets[1u]) && (self->private_impl.f_components_workbuf_offsets[1u] <= ((uint64_t)(a_workbuf.len)))) { - v_src0 = wuffs_base__slice_u8__subslice_ij(a_workbuf, - self->private_impl.f_components_workbuf_offsets[0u], - self->private_impl.f_components_workbuf_offsets[1u]); - } - if ((self->private_impl.f_components_workbuf_offsets[1u] <= self->private_impl.f_components_workbuf_offsets[2u]) && (self->private_impl.f_components_workbuf_offsets[2u] <= ((uint64_t)(a_workbuf.len)))) { - v_src1 = wuffs_base__slice_u8__subslice_ij(a_workbuf, - self->private_impl.f_components_workbuf_offsets[1u], - self->private_impl.f_components_workbuf_offsets[2u]); - } - if ((self->private_impl.f_components_workbuf_offsets[2u] <= self->private_impl.f_components_workbuf_offsets[3u]) && (self->private_impl.f_components_workbuf_offsets[3u] <= ((uint64_t)(a_workbuf.len)))) { - v_src2 = wuffs_base__slice_u8__subslice_ij(a_workbuf, - self->private_impl.f_components_workbuf_offsets[2u], - self->private_impl.f_components_workbuf_offsets[3u]); - } - if ((self->private_impl.f_components_workbuf_offsets[3u] <= self->private_impl.f_components_workbuf_offsets[4u]) && (self->private_impl.f_components_workbuf_offsets[4u] <= ((uint64_t)(a_workbuf.len)))) { - v_src3 = wuffs_base__slice_u8__subslice_ij(a_workbuf, - self->private_impl.f_components_workbuf_offsets[3u], - self->private_impl.f_components_workbuf_offsets[4u]); - } - v_status = wuffs_base__pixel_swizzler__swizzle_ycck(&self->private_impl.f_swizzler, - a_dst, - wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)), - self->private_impl.f_width, - self->private_impl.f_height, - v_src0, - v_src1, - v_src2, - v_src3, - self->private_impl.f_components_workbuf_widths[0u], - self->private_impl.f_components_workbuf_widths[1u], - self->private_impl.f_components_workbuf_widths[2u], - self->private_impl.f_components_workbuf_widths[3u], - self->private_impl.f_components_workbuf_heights[0u], - self->private_impl.f_components_workbuf_heights[1u], - self->private_impl.f_components_workbuf_heights[2u], - self->private_impl.f_components_workbuf_heights[3u], - self->private_impl.f_components_workbuf_widths[0u], - self->private_impl.f_components_workbuf_widths[1u], - self->private_impl.f_components_workbuf_widths[2u], - self->private_impl.f_components_workbuf_widths[3u], - self->private_impl.f_components_h[0u], - self->private_impl.f_components_h[1u], - self->private_impl.f_components_h[2u], - self->private_impl.f_components_h[3u], - self->private_impl.f_components_v[0u], - self->private_impl.f_components_v[1u], - self->private_impl.f_components_v[2u], - self->private_impl.f_components_v[3u], - self->private_impl.f_is_rgb_or_cmyk, - true, - wuffs_base__make_slice_u8(self->private_data.f_swizzle_ycck_scratch_buffer_2k, 2048)); - return wuffs_private_impl__status__ensure_not_a_suspension(v_status); -} - -// -------- func jpeg.decoder.frame_dirty_rect - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 -wuffs_jpeg__decoder__frame_dirty_rect( - const wuffs_jpeg__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_rect_ie_u32(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_rect_ie_u32(); - } - - return wuffs_base__utility__make_rect_ie_u32( - 0u, - 0u, - self->private_impl.f_width, - self->private_impl.f_height); -} - -// -------- func jpeg.decoder.num_animation_loops - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_jpeg__decoder__num_animation_loops( - const wuffs_jpeg__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - return 0u; -} - -// -------- func jpeg.decoder.num_decoded_frame_configs - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_jpeg__decoder__num_decoded_frame_configs( - const wuffs_jpeg__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - if (self->private_impl.f_call_sequence > 32u) { - return 1u; - } - return 0u; -} - -// -------- func jpeg.decoder.num_decoded_frames + wuffs_base__slice_u8 a_workbuf, + uint32_t a_mx, + uint32_t a_my) { + uint32_t v_ret = 0; + uint64_t v_bits = 0; + uint32_t v_n_bits = 0; + uint8_t v_csel = 0; + wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); + wuffs_base__io_buffer* v_r = &u_r; + const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint32_t v_pos = 0; + uint8_t v_dc_h = 0; + uint32_t v_dc_symbol = 0; + uint32_t v_dc_ht_fast = 0; + uint32_t v_dc_bl = 0; + uint32_t v_dc_code = 0; + uint32_t v_dc_blm1 = 0; + uint32_t v_dc_ht_slow = 0; + uint16_t v_dc_value = 0; + uint16_t v_dc_extend = 0; + const uint16_t* v_ac_huff_table_fast = NULL; + uint8_t v_ac_h = 0; + uint32_t v_ac_symbol = 0; + uint32_t v_ac_ht_fast = 0; + uint32_t v_ac_bl = 0; + uint32_t v_ac_code = 0; + uint32_t v_ac_blm1 = 0; + uint32_t v_ac_ht_slow = 0; + uint16_t v_ac_value = 0; + uint16_t v_ac_extend = 0; + uint32_t v_ac_rrrr = 0; + uint32_t v_ac_ssss = 0; + uint32_t v_z = 0; + uint32_t v_mcb = 0; + uint64_t v_stride = 0; + uint64_t v_offset = 0; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_jpeg__decoder__num_decoded_frames( - const wuffs_jpeg__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + v_bits = self->private_impl.f_bitstream_bits; + v_n_bits = self->private_impl.f_bitstream_n_bits; + if (self->private_impl.f_bitstream_ri > self->private_impl.f_bitstream_wi) { + return 2u; } - - if (self->private_impl.f_call_sequence > 64u) { - return 1u; + { + wuffs_base__io_buffer* o_0_v_r = v_r; + const uint8_t* o_0_iop_v_r = iop_v_r; + const uint8_t* o_0_io0_v_r = io0_v_r; + const uint8_t* o_0_io1_v_r = io1_v_r; + const uint8_t* o_0_io2_v_r = io2_v_r; + v_r = wuffs_private_impl__io_reader__set( + &u_r, + &iop_v_r, + &io0_v_r, + &io1_v_r, + &io2_v_r, + wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, + self->private_impl.f_bitstream_ri, + self->private_impl.f_bitstream_wi), + ((uint64_t)(self->private_impl.f_bitstream_ri))); + do { + while (self->private_impl.f_mcu_current_block < self->private_impl.f_mcu_num_blocks) { + while (self->private_impl.f_mcu_zig_index <= 0u) { + wuffs_private_impl__bulk_memset(&self->private_data.f_mcu_blocks[0], 1u * (size_t)128u, 0u); + if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { + v_ret = 1u; + goto label__goto_done__break; + } + v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); + iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); + v_n_bits |= 56u; + v_dc_h = self->private_impl.f_mcu_blocks_dc_hselector[self->private_impl.f_mcu_current_block]; + v_dc_ht_fast = ((uint32_t)(self->private_impl.f_huff_tables_fast[v_dc_h][(v_bits >> 56u)])); + v_dc_bl = (v_dc_ht_fast >> 8u); + if (v_n_bits >= v_dc_bl) { + v_dc_symbol = (15u & v_dc_ht_fast); + v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; + v_bits <<= (v_dc_bl & 63u); + v_n_bits -= v_dc_bl; + } else { + v_dc_code = ((uint32_t)((v_bits >> 55u))); + v_dc_blm1 = 8u; + v_bits <<= 9u; + v_n_bits -= 9u; + while (true) { + v_dc_ht_slow = self->private_impl.f_huff_tables_slow[v_dc_h][v_dc_blm1]; + if (v_dc_code < (v_dc_ht_slow >> 8u)) { + v_dc_symbol = (15u & ((uint32_t)(self->private_impl.f_huff_tables_symbols[v_dc_h][(255u & ((uint32_t)(v_dc_code + v_dc_ht_slow)))]))); + v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; + break; + } + v_dc_code = (((uint32_t)(v_dc_code << 1u)) | ((uint32_t)((v_bits >> 63u)))); + v_bits <<= 1u; + v_n_bits -= 1u; + v_dc_blm1 = ((v_dc_blm1 + 1u) & 15u); + if (v_dc_blm1 == 0u) { + v_dc_symbol = 0u; + v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; + break; + } + } + } + v_dc_value = ((uint16_t)(((v_bits >> 32u) >> (32u - v_dc_symbol)))); +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_dc_value += ((uint16_t)(v_dc_extend & ((uint16_t)(((uint16_t)(wuffs_base__utility__sign_extend_rshift_u64(v_bits, 63u))) ^ 65535u)))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_bits <<= v_dc_symbol; + v_n_bits -= v_dc_symbol; + v_csel = self->private_impl.f_scan_comps_cselector[self->private_impl.f_mcu_blocks_sselector[self->private_impl.f_mcu_current_block]]; +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_impl.f_mcu_previous_dc_values[v_csel] += v_dc_value; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + self->private_data.f_mcu_blocks[0u][0u] = self->private_impl.f_mcu_previous_dc_values[v_csel]; + self->private_impl.f_mcu_zig_index = 1u; + break; + } + if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { + v_ret = 1u; + goto label__goto_done__break; + } + if (v_n_bits < 16u) { + v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); + } + v_z = 1u; + self->private_impl.f_mcu_zig_index = 0u; + v_ac_h = self->private_impl.f_mcu_blocks_ac_hselector[self->private_impl.f_mcu_current_block]; + v_ac_huff_table_fast = &self->private_impl.f_huff_tables_fast[v_ac_h][0u]; + while (v_z < 64u) { + v_ac_ht_fast = ((uint32_t)(v_ac_huff_table_fast[(v_bits >> 56u)])); + if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { + v_ret = 2u; + goto label__goto_done__break; + } + v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); + iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); + v_n_bits |= 56u; + v_ac_bl = (v_ac_ht_fast >> 8u); + if (v_n_bits >= v_ac_bl) { + v_ac_symbol = (255u & v_ac_ht_fast); + v_bits <<= (v_ac_bl & 63u); + v_n_bits -= v_ac_bl; + } else { + v_ac_code = ((uint32_t)((v_bits >> 55u))); + v_ac_blm1 = 8u; + v_bits <<= 9u; + v_n_bits -= 9u; + while (true) { + v_ac_ht_slow = self->private_impl.f_huff_tables_slow[v_ac_h][v_ac_blm1]; + if (v_ac_code < (v_ac_ht_slow >> 8u)) { + v_ac_symbol = ((uint32_t)(self->private_impl.f_huff_tables_symbols[v_ac_h][(255u & ((uint32_t)(v_ac_code + v_ac_ht_slow)))])); + break; + } + v_ac_code = (((uint32_t)(v_ac_code << 1u)) | ((uint32_t)((v_bits >> 63u)))); + v_bits <<= 1u; + v_n_bits -= 1u; + v_ac_blm1 = ((v_ac_blm1 + 1u) & 15u); + if (v_ac_blm1 == 0u) { + v_ac_symbol = 0u; + break; + } + } + } + v_ac_rrrr = (v_ac_symbol >> 4u); + v_z += (v_ac_rrrr + 1u); + v_ac_ssss = (v_ac_symbol & 15u); + v_ac_extend = WUFFS_JPEG__EXTEND[v_ac_ssss]; + if (v_ac_ssss > 0u) { + v_ac_value = ((uint16_t)((v_bits >> (64u - v_ac_ssss)))); +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_ac_value += ((uint16_t)(v_ac_extend & ((uint16_t)(((uint16_t)(wuffs_base__utility__sign_extend_rshift_u64(v_bits, 63u))) ^ 65535u)))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_bits <<= v_ac_ssss; + v_n_bits -= v_ac_ssss; + self->private_data.f_mcu_blocks[0u][WUFFS_JPEG__UNZIG[v_z]] = v_ac_value; + } else if (v_ac_rrrr < 15u) { + break; + } + } + v_mcb = self->private_impl.f_mcu_current_block; + self->private_impl.f_mcu_current_block += 1u; + if (self->private_impl.f_test_only_interrupt_decode_mcu) { + goto label__goto_done__break; + } + if ( ! self->private_impl.f_swizzle_immediately) { + v_csel = self->private_impl.f_scan_comps_cselector[self->private_impl.f_mcu_blocks_sselector[v_mcb]]; + v_stride = ((uint64_t)(self->private_impl.f_components_workbuf_widths[v_csel])); + v_offset = (self->private_impl.f_mcu_blocks_offset[v_mcb] + (((uint64_t)(self->private_impl.f_mcu_blocks_mx_mul[v_mcb])) * ((uint64_t)(a_mx))) + (((uint64_t)(self->private_impl.f_mcu_blocks_my_mul[v_mcb])) * ((uint64_t)(a_my)))); + if (v_offset <= ((uint64_t)(a_workbuf.len))) { + wuffs_jpeg__decoder__decode_idct(self, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset), v_stride, ((uint32_t)(self->private_impl.f_components_tq[v_csel]))); + } + } else if (self->private_impl.f_num_components == 1u) { + wuffs_jpeg__decoder__decode_idct(self, wuffs_base__make_slice_u8(self->private_data.f_swizzle_immediately_buffer, 64), 8u, ((uint32_t)(self->private_impl.f_components_tq[v_csel]))); + self->private_impl.f_swizzle_immediately_status = wuffs_jpeg__decoder__swizzle_gray(self, + a_dst, + wuffs_base__make_slice_u8(self->private_data.f_swizzle_immediately_buffer, 64), + ((a_mx + 0u) * 8u), + ((a_mx + 1u) * 8u), + ((a_my + 0u) * 8u), + ((a_my + 1u) * 8u), + 8u); + if ( ! wuffs_base__status__is_ok(&self->private_impl.f_swizzle_immediately_status)) { + v_ret = 3u; + goto label__goto_done__break; + } + break; + } else { + v_csel = self->private_impl.f_scan_comps_cselector[self->private_impl.f_mcu_blocks_sselector[v_mcb]]; + v_stride = (8u * ((uint64_t)(self->private_impl.f_components_h[v_csel]))); + wuffs_jpeg__decoder__decode_idct(self, wuffs_base__make_slice_u8_ij(self->private_data.f_swizzle_immediately_buffer, self->private_impl.f_swizzle_immediately_b_offsets[v_mcb], 640), v_stride, ((uint32_t)(self->private_impl.f_components_tq[v_csel]))); + if (self->private_impl.f_mcu_current_block < self->private_impl.f_mcu_num_blocks) { + continue; + } + self->private_impl.f_swizzle_immediately_status = wuffs_jpeg__decoder__swizzle_colorful(self, + a_dst, + wuffs_base__utility__empty_slice_u8(), + ((a_mx + 0u) * 8u * ((uint32_t)(self->private_impl.f_max_incl_components_h))), + ((a_mx + 1u) * 8u * ((uint32_t)(self->private_impl.f_max_incl_components_h))), + ((a_my + 0u) * 8u * ((uint32_t)(self->private_impl.f_max_incl_components_v))), + ((a_my + 1u) * 8u * ((uint32_t)(self->private_impl.f_max_incl_components_v)))); + if ( ! wuffs_base__status__is_ok(&self->private_impl.f_swizzle_immediately_status)) { + v_ret = 3u; + goto label__goto_done__break; + } + break; + } + } + self->private_impl.f_mcu_current_block = 0u; + } while (0); + label__goto_done__break:; + v_pos = ((uint32_t)(wuffs_base__u64__sat_add((v_r ? v_r->meta.pos : 0), ((uint64_t)(iop_v_r - io0_v_r))))); + if (v_pos > self->private_impl.f_bitstream_wi) { + v_ret = 2u; + } else { + self->private_impl.f_bitstream_ri = v_pos; + } + v_r = o_0_v_r; + iop_v_r = o_0_iop_v_r; + io0_v_r = o_0_io0_v_r; + io1_v_r = o_0_io1_v_r; + io2_v_r = o_0_io2_v_r; } - return 0u; + self->private_impl.f_bitstream_bits = v_bits; + self->private_impl.f_bitstream_n_bits = v_n_bits; + return v_ret; } -// -------- func jpeg.decoder.restart_frame +// -------- func jpeg.decoder.decode_mcu_progressive_ac_high_bits WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_jpeg__decoder__restart_frame( +static uint32_t +wuffs_jpeg__decoder__decode_mcu_progressive_ac_high_bits( wuffs_jpeg__decoder* self, - uint64_t a_index, - uint64_t a_io_position) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - - uint32_t v_i = 0; - uint32_t v_j = 0; + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_mx, + uint32_t a_my) { + uint32_t v_ret = 0; + uint64_t v_bits = 0; + uint32_t v_n_bits = 0; + wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); + wuffs_base__io_buffer* v_r = &u_r; + const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint32_t v_pos = 0; + const uint16_t* v_ac_huff_table_fast = NULL; + uint8_t v_ac_h = 0; + uint32_t v_ac_symbol = 0; + uint32_t v_ac_ht_fast = 0; + uint32_t v_ac_bl = 0; + uint32_t v_ac_code = 0; + uint32_t v_ac_blm1 = 0; + uint32_t v_ac_ht_slow = 0; + uint16_t v_ac_value = 0; + uint16_t v_ac_extend = 0; + uint32_t v_ac_rrrr = 0; + uint32_t v_ac_ssss = 0; + uint32_t v_z = 0; - if (self->private_impl.f_call_sequence < 32u) { - return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - } - if (a_index != 0u) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); + if (self->private_impl.f_eob_run > 0u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_impl.f_eob_run -= 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + return 0u; } - self->private_impl.f_call_sequence = 40u; - self->private_impl.f_bitstream_is_closed = false; - self->private_impl.f_frame_config_io_position = a_io_position; - self->private_impl.f_scan_count = 0u; - self->private_impl.f_restart_interval = self->private_impl.f_saved_restart_interval; - v_i = 0u; - while (v_i < 4u) { - self->private_impl.f_seen_dqt[v_i] = self->private_impl.f_saved_seen_dqt[v_i]; - v_j = 0u; - while (v_j < 64u) { - self->private_impl.f_quant_tables[v_i][v_j] = self->private_impl.f_saved_quant_tables[v_i][v_j]; - v_j += 1u; - } - v_i += 1u; + v_bits = self->private_impl.f_bitstream_bits; + v_n_bits = self->private_impl.f_bitstream_n_bits; + if (self->private_impl.f_bitstream_ri > self->private_impl.f_bitstream_wi) { + return 2u; } - v_i = 0u; - while (v_i < 4u) { - v_j = 0u; - while (v_j < 10u) { - self->private_impl.f_block_smoothing_lowest_scan_al[v_i][v_j] = 16u; - v_j += 1u; + { + wuffs_base__io_buffer* o_0_v_r = v_r; + const uint8_t* o_0_iop_v_r = iop_v_r; + const uint8_t* o_0_io0_v_r = io0_v_r; + const uint8_t* o_0_io1_v_r = io1_v_r; + const uint8_t* o_0_io2_v_r = io2_v_r; + v_r = wuffs_private_impl__io_reader__set( + &u_r, + &iop_v_r, + &io0_v_r, + &io1_v_r, + &io2_v_r, + wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, + self->private_impl.f_bitstream_ri, + self->private_impl.f_bitstream_wi), + ((uint64_t)(self->private_impl.f_bitstream_ri))); + do { + do { + if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { + v_ret = 1u; + goto label__goto_done__break; + } + if (v_n_bits < 16u) { + v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); + } + v_z = self->private_impl.f_mcu_zig_index; + self->private_impl.f_mcu_zig_index = 0u; + v_ac_h = self->private_impl.f_mcu_blocks_ac_hselector[0u]; + v_ac_huff_table_fast = &self->private_impl.f_huff_tables_fast[v_ac_h][0u]; + while (v_z <= ((uint32_t)(self->private_impl.f_scan_se))) { + v_ac_ht_fast = ((uint32_t)(v_ac_huff_table_fast[(v_bits >> 56u)])); + if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { + v_ret = 2u; + goto label__goto_done__break; + } + v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); + iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); + v_n_bits |= 56u; + v_ac_bl = (v_ac_ht_fast >> 8u); + if (v_n_bits >= v_ac_bl) { + v_ac_symbol = (255u & v_ac_ht_fast); + v_bits <<= (v_ac_bl & 63u); + v_n_bits -= v_ac_bl; + } else { + v_ac_code = ((uint32_t)((v_bits >> 55u))); + v_ac_blm1 = 8u; + v_bits <<= 9u; + v_n_bits -= 9u; + while (true) { + v_ac_ht_slow = self->private_impl.f_huff_tables_slow[v_ac_h][v_ac_blm1]; + if (v_ac_code < (v_ac_ht_slow >> 8u)) { + v_ac_symbol = ((uint32_t)(self->private_impl.f_huff_tables_symbols[v_ac_h][(255u & ((uint32_t)(v_ac_code + v_ac_ht_slow)))])); + break; + } + v_ac_code = (((uint32_t)(v_ac_code << 1u)) | ((uint32_t)((v_bits >> 63u)))); + v_bits <<= 1u; + v_n_bits -= 1u; + v_ac_blm1 = ((v_ac_blm1 + 1u) & 15u); + if (v_ac_blm1 == 0u) { + v_ac_symbol = 0u; + break; + } + } + } + v_ac_rrrr = (v_ac_symbol >> 4u); + v_z += (v_ac_rrrr + 1u); + v_ac_ssss = (v_ac_symbol & 15u); + v_ac_extend = WUFFS_JPEG__EXTEND[v_ac_ssss]; + if (v_ac_ssss > 0u) { + v_ac_value = ((uint16_t)((v_bits >> (64u - v_ac_ssss)))); +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_ac_value += ((uint16_t)(v_ac_extend & ((uint16_t)(((uint16_t)(wuffs_base__utility__sign_extend_rshift_u64(v_bits, 63u))) ^ 65535u)))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_bits <<= v_ac_ssss; + v_n_bits -= v_ac_ssss; + self->private_data.f_mcu_blocks[0u][WUFFS_JPEG__UNZIG[v_z]] = ((uint16_t)(((uint16_t)(v_ac_value << self->private_impl.f_scan_al)))); + } else if (v_ac_rrrr < 15u) { + self->private_impl.f_eob_run = ((uint16_t)(((uint16_t)(((uint16_t)(((uint16_t)(1u)) << v_ac_rrrr)) - 1u)))); + if (v_ac_rrrr > 0u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_impl.f_eob_run += ((uint16_t)((v_bits >> (64u - v_ac_rrrr)))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_bits <<= v_ac_rrrr; + v_n_bits -= v_ac_rrrr; + } + break; + } + } + } while (0); + } while (0); + label__goto_done__break:; + v_pos = ((uint32_t)(wuffs_base__u64__sat_add((v_r ? v_r->meta.pos : 0), ((uint64_t)(iop_v_r - io0_v_r))))); + if (v_pos > self->private_impl.f_bitstream_wi) { + v_ret = 2u; + } else { + self->private_impl.f_bitstream_ri = v_pos; } - v_i += 1u; - } - v_i = 0u; - while (v_i < 8u) { - self->private_impl.f_seen_dht[v_i] = false; - v_i += 1u; + v_r = o_0_v_r; + iop_v_r = o_0_iop_v_r; + io0_v_r = o_0_io0_v_r; + io1_v_r = o_0_io1_v_r; + io2_v_r = o_0_io2_v_r; } - return wuffs_base__make_status(NULL); -} - -// -------- func jpeg.decoder.set_report_metadata - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_jpeg__decoder__set_report_metadata( - wuffs_jpeg__decoder* self, - uint32_t a_fourcc, - bool a_report) { - return wuffs_base__make_empty_struct(); + self->private_impl.f_bitstream_bits = v_bits; + self->private_impl.f_bitstream_n_bits = v_n_bits; + return v_ret; } -// -------- func jpeg.decoder.tell_me_more +// -------- func jpeg.decoder.decode_mcu_progressive_ac_low_bit WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_jpeg__decoder__tell_me_more( +static uint32_t +wuffs_jpeg__decoder__decode_mcu_progressive_ac_low_bit( wuffs_jpeg__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 4)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - - status = wuffs_base__make_status(wuffs_base__error__no_more_information); - goto exit; - - goto ok; - ok: - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - } - return status; -} - -// -------- func jpeg.decoder.workbuf_len + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_mx, + uint32_t a_my) { + uint32_t v_ret = 0; + uint64_t v_bits = 0; + uint32_t v_n_bits = 0; + uint16_t v_one_lshift_scan_al = 0; + wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); + wuffs_base__io_buffer* v_r = &u_r; + const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint32_t v_pos = 0; + const uint16_t* v_ac_huff_table_fast = NULL; + uint8_t v_ac_h = 0; + uint32_t v_ac_symbol = 0; + uint32_t v_ac_ht_fast = 0; + uint32_t v_ac_bl = 0; + uint32_t v_ac_code = 0; + uint32_t v_ac_blm1 = 0; + uint32_t v_ac_ht_slow = 0; + uint16_t v_ac_value = 0; + uint32_t v_ac_rrrr = 0; + uint32_t v_ac_ssss = 0; + uint8_t v_unzig = 0; + bool v_bit = false; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_jpeg__decoder__workbuf_len( - const wuffs_jpeg__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); + v_bits = self->private_impl.f_bitstream_bits; + v_n_bits = self->private_impl.f_bitstream_n_bits; + v_one_lshift_scan_al = ((uint16_t)(((uint16_t)(1u)) << self->private_impl.f_scan_al)); + if (self->private_impl.f_bitstream_ri > self->private_impl.f_bitstream_wi) { + return 2u; } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); + { + wuffs_base__io_buffer* o_0_v_r = v_r; + const uint8_t* o_0_iop_v_r = iop_v_r; + const uint8_t* o_0_io0_v_r = io0_v_r; + const uint8_t* o_0_io1_v_r = io1_v_r; + const uint8_t* o_0_io2_v_r = io2_v_r; + v_r = wuffs_private_impl__io_reader__set( + &u_r, + &iop_v_r, + &io0_v_r, + &io1_v_r, + &io2_v_r, + wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, + self->private_impl.f_bitstream_ri, + self->private_impl.f_bitstream_wi), + ((uint64_t)(self->private_impl.f_bitstream_ri))); + do { + do { + if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { + v_ret = 1u; + goto label__goto_done__break; + } + while (true) { + if (self->private_impl.f_eob_run > 0u) { + break; + } + v_ac_h = self->private_impl.f_mcu_blocks_ac_hselector[0u]; + v_ac_huff_table_fast = &self->private_impl.f_huff_tables_fast[v_ac_h][0u]; + while (true) { + if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { + v_ret = 2u; + goto label__goto_done__break; + } + v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); + iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); + v_n_bits |= 56u; + v_ac_ht_fast = ((uint32_t)(v_ac_huff_table_fast[(v_bits >> 56u)])); + v_ac_bl = (v_ac_ht_fast >> 8u); + if (v_n_bits >= v_ac_bl) { + v_ac_symbol = (255u & v_ac_ht_fast); + v_bits <<= (v_ac_bl & 63u); + v_n_bits -= v_ac_bl; + } else { + v_ac_code = ((uint32_t)((v_bits >> 55u))); + v_ac_blm1 = 8u; + v_bits <<= 9u; + v_n_bits -= 9u; + while (true) { + v_ac_ht_slow = self->private_impl.f_huff_tables_slow[v_ac_h][v_ac_blm1]; + if (v_ac_code < (v_ac_ht_slow >> 8u)) { + v_ac_symbol = ((uint32_t)(self->private_impl.f_huff_tables_symbols[v_ac_h][(255u & ((uint32_t)(v_ac_code + v_ac_ht_slow)))])); + break; + } + v_ac_code = (((uint32_t)(v_ac_code << 1u)) | ((uint32_t)((v_bits >> 63u)))); + v_bits <<= 1u; + v_n_bits -= 1u; + v_ac_blm1 = ((v_ac_blm1 + 1u) & 15u); + if (v_ac_blm1 == 0u) { + v_ac_symbol = 0u; + break; + } + } + } + v_ac_rrrr = (v_ac_symbol >> 4u); + v_ac_ssss = (v_ac_symbol & 15u); + v_ac_value = 0u; + if (v_ac_ssss > 0u) { + v_ac_value = ((uint16_t)(((uint16_t)(1u)) << self->private_impl.f_scan_al)); + if ((v_bits >> 63u) == 0u) { + v_ac_value = ((uint16_t)(((uint16_t)(65535u)) << self->private_impl.f_scan_al)); + } + v_bits <<= 1u; + v_n_bits -= 1u; + } else if (v_ac_rrrr < 15u) { + self->private_impl.f_eob_run = ((uint16_t)(((uint16_t)(1u)) << v_ac_rrrr)); + if (v_ac_rrrr > 0u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_impl.f_eob_run += ((uint16_t)((v_bits >> (64u - v_ac_rrrr)))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_bits <<= v_ac_rrrr; + v_n_bits -= v_ac_rrrr; + } + goto label__goto_do_eob__break; + } + while (true) { + v_unzig = WUFFS_JPEG__UNZIG[(1u + self->private_impl.f_mcu_zig_index)]; + if (self->private_data.f_mcu_blocks[0u][v_unzig] != 0u) { + if (v_n_bits == 0u) { + if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { + v_ret = 2u; + goto label__goto_done__break; + } + v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); + iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); + v_n_bits |= 56u; + } + v_bit = ((v_bits >> 63u) > 0u); + v_bits <<= 1u; + v_n_bits -= 1u; + if (v_bit) { + if (self->private_data.f_mcu_blocks[0u][v_unzig] < 32768u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_data.f_mcu_blocks[0u][v_unzig] += v_one_lshift_scan_al; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_data.f_mcu_blocks[0u][v_unzig] -= v_one_lshift_scan_al; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } + } + } else if (v_ac_rrrr <= 0u) { + break; + } else { + v_ac_rrrr -= 1u; + } + if (self->private_impl.f_mcu_zig_index >= ((uint32_t)(self->private_impl.f_scan_se))) { + break; + } + self->private_impl.f_mcu_zig_index += 1u; + } + if (v_ac_value != 0u) { + self->private_data.f_mcu_blocks[0u][WUFFS_JPEG__UNZIG[(1u + self->private_impl.f_mcu_zig_index)]] = v_ac_value; + } + if (self->private_impl.f_mcu_zig_index >= ((uint32_t)(self->private_impl.f_scan_se))) { + break; + } + self->private_impl.f_mcu_zig_index += 1u; + } + goto label__block__break; + } + label__goto_do_eob__break:; + if (self->private_impl.f_eob_run <= 0u) { + v_ret = 2u; + goto label__goto_done__break; + } + while (true) { + v_unzig = WUFFS_JPEG__UNZIG[(1u + self->private_impl.f_mcu_zig_index)]; + if (self->private_data.f_mcu_blocks[0u][v_unzig] != 0u) { + if (v_n_bits == 0u) { + if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { + v_ret = 2u; + goto label__goto_done__break; + } + v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); + iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); + v_n_bits |= 56u; + } + v_bit = ((v_bits >> 63u) > 0u); + v_bits <<= 1u; + v_n_bits -= 1u; + if (v_bit) { + if (self->private_data.f_mcu_blocks[0u][v_unzig] < 32768u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_data.f_mcu_blocks[0u][v_unzig] += v_one_lshift_scan_al; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_data.f_mcu_blocks[0u][v_unzig] -= v_one_lshift_scan_al; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } + } + } + if (self->private_impl.f_mcu_zig_index >= ((uint32_t)(self->private_impl.f_scan_se))) { + break; + } + self->private_impl.f_mcu_zig_index += 1u; + } +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_impl.f_eob_run -= 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } while (0); + label__block__break:; + } while (0); + label__goto_done__break:; + v_pos = ((uint32_t)(wuffs_base__u64__sat_add((v_r ? v_r->meta.pos : 0), ((uint64_t)(iop_v_r - io0_v_r))))); + if (v_pos > self->private_impl.f_bitstream_wi) { + v_ret = 2u; + } else { + self->private_impl.f_bitstream_ri = v_pos; + } + v_r = o_0_v_r; + iop_v_r = o_0_iop_v_r; + io0_v_r = o_0_io0_v_r; + io1_v_r = o_0_io1_v_r; + io2_v_r = o_0_io2_v_r; } - - return wuffs_base__utility__make_range_ii_u64(self->private_impl.f_components_workbuf_offsets[8u], self->private_impl.f_components_workbuf_offsets[8u]); -} - -// -------- func jpeg.decoder.top_left_quants_has_zero - -WUFFS_BASE__GENERATED_C_CODE -static bool -wuffs_jpeg__decoder__top_left_quants_has_zero( - const wuffs_jpeg__decoder* self, - uint32_t a_q) { - return ((self->private_impl.f_quant_tables[a_q][0u] == 0u) || - (self->private_impl.f_quant_tables[a_q][1u] == 0u) || - (self->private_impl.f_quant_tables[a_q][2u] == 0u) || - (self->private_impl.f_quant_tables[a_q][3u] == 0u) || - (self->private_impl.f_quant_tables[a_q][8u] == 0u) || - (self->private_impl.f_quant_tables[a_q][9u] == 0u) || - (self->private_impl.f_quant_tables[a_q][10u] == 0u) || - (self->private_impl.f_quant_tables[a_q][16u] == 0u) || - (self->private_impl.f_quant_tables[a_q][17u] == 0u) || - (self->private_impl.f_quant_tables[a_q][24u] == 0u)); + self->private_impl.f_bitstream_bits = v_bits; + self->private_impl.f_bitstream_n_bits = v_n_bits; + return v_ret; } -// -------- func jpeg.decoder.load_mcu_blocks_for_single_component_smooth +// -------- func jpeg.decoder.decode_mcu_progressive_dc_high_bits WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_jpeg__decoder__load_mcu_blocks_for_single_component_smooth( +static uint32_t +wuffs_jpeg__decoder__decode_mcu_progressive_dc_high_bits( wuffs_jpeg__decoder* self, - uint32_t a_mx, - uint32_t a_my, + wuffs_base__pixel_buffer* a_dst, wuffs_base__slice_u8 a_workbuf, - uint32_t a_csel) { - uint64_t v_stride16 = 0; - uint64_t v_offset = 0; - uint32_t v_dx = 0; - uint32_t v_dy = 0; - uint32_t v_mx = 0; - uint32_t v_my = 0; - uint8_t v_q = 0; - uint32_t v_q_00 = 0; - uint32_t v_q_xy = 0; - uint8_t v_al = 0; - uint32_t v_scratch = 0; - uint32_t v_limit = 0; + uint32_t a_mx, + uint32_t a_my) { + uint32_t v_ret = 0; + uint64_t v_bits = 0; + uint32_t v_n_bits = 0; + uint8_t v_csel = 0; + wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); + wuffs_base__io_buffer* v_r = &u_r; + const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint32_t v_pos = 0; + uint8_t v_dc_h = 0; + uint32_t v_dc_symbol = 0; + uint32_t v_dc_ht_fast = 0; + uint32_t v_dc_bl = 0; + uint32_t v_dc_code = 0; + uint32_t v_dc_blm1 = 0; + uint32_t v_dc_ht_slow = 0; + uint16_t v_dc_value = 0; + uint16_t v_dc_extend = 0; - v_stride16 = ((uint64_t)((self->private_impl.f_components_workbuf_widths[a_csel] * 16u))); - v_offset = (self->private_impl.f_components_workbuf_offsets[(a_csel | 4u)] + (((uint64_t)(a_mx)) * 128u) + (((uint64_t)(a_my)) * v_stride16)); - if (v_offset <= ((uint64_t)(a_workbuf.len))) { - wuffs_private_impl__bulk_load_host_endian(&self->private_data.f_mcu_blocks[0], 1u * (size_t)128u, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset)); - } - v_dy = 0u; - while (v_dy < 5u) { - v_my = wuffs_base__u32__min(self->private_impl.f_block_smoothing_my_max_incl, wuffs_base__u32__sat_sub((a_my + v_dy), 2u)); - v_dx = 0u; - while (v_dx < 5u) { - v_mx = wuffs_base__u32__min(self->private_impl.f_block_smoothing_mx_max_incl, wuffs_base__u32__sat_sub((a_mx + v_dx), 2u)); - v_offset = (self->private_impl.f_components_workbuf_offsets[(a_csel | 4u)] + (((uint64_t)(v_mx)) * 128u) + (((uint64_t)(v_my)) * v_stride16)); - if (v_offset <= ((uint64_t)(a_workbuf.len))) { - wuffs_private_impl__bulk_load_host_endian(&self->private_impl.f_block_smoothing_dc_values[v_dy][v_dx], 1u * (size_t)2u, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset)); - } - v_dx += 1u; - } - v_dy += 1u; - } - v_q = self->private_impl.f_components_tq[a_csel]; - v_q_00 = ((uint32_t)(self->private_impl.f_quant_tables[v_q][0u])); - if (v_q_00 <= 0u) { - return wuffs_base__make_empty_struct(); + v_bits = self->private_impl.f_bitstream_bits; + v_n_bits = self->private_impl.f_bitstream_n_bits; + if (self->private_impl.f_bitstream_ri > self->private_impl.f_bitstream_wi) { + return 2u; } - if (0u != (16u & - self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][1u] & - self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][2u] & - self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][3u] & - self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][4u] & - self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][5u] & - self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][6u] & - self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][7u] & - self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][8u] & - self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][9u])) { - v_scratch = 0u; - v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(4294967288u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(6u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(42u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(6u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(4294967288u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(42u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(152u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(42u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(4294967288u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(6u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(42u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(6u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(4294967288u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(4294967290u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + 128u)) / 256u))); - } else { - v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + 128u)) / 256u))); - } - self->private_data.f_mcu_blocks[0u][0u] = ((uint16_t)(v_scratch)); - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][1u])); - if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][1u] == 0u)) { - v_scratch = 0u; - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(4294967283u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(38u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(4294967258u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(4294967283u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } else { - v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } - self->private_data.f_mcu_blocks[0u][1u] = ((uint16_t)(v_scratch)); - } - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][2u])); - if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][2u] == 0u)) { - v_scratch = 0u; - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(4294967291u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(4294967282u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(4294967291u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } else { - v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } - self->private_data.f_mcu_blocks[0u][2u] = ((uint16_t)(v_scratch)); - } - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][3u])); - if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][3u] == 0u)) { - v_scratch = 0u; - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } else { - v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } - self->private_data.f_mcu_blocks[0u][3u] = ((uint16_t)(v_scratch)); - } - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][8u])); - if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][8u] == 0u)) { - v_scratch = 0u; - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(38u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(4294967283u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(4294967258u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(4294967283u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } else { - v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } - self->private_data.f_mcu_blocks[0u][8u] = ((uint16_t)(v_scratch)); - } - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][9u])); - if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][9u] == 0u)) { - v_scratch = 0u; - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(9u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(4294967287u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(4294967287u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(9u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } else { - v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } - self->private_data.f_mcu_blocks[0u][9u] = ((uint16_t)(v_scratch)); - } - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][10u])); - if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][10u] == 0u)) { - v_scratch = 0u; - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } else { - v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } - self->private_data.f_mcu_blocks[0u][10u] = ((uint16_t)(v_scratch)); - } - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][16u])); - if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][16u] == 0u)) { - v_scratch = 0u; - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(4294967291u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(4294967282u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(4294967291u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } else { - v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } - self->private_data.f_mcu_blocks[0u][16u] = ((uint16_t)(v_scratch)); - } - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][17u])); - if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][17u] == 0u)) { - v_scratch = 0u; - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(4294967293u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(3u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } else { - v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } - self->private_data.f_mcu_blocks[0u][17u] = ((uint16_t)(v_scratch)); - } - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][24u])); - if ((v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][24u] == 0u)) { - v_scratch = 0u; - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(2u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(4294967294u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); - } else { - v_scratch = ((uint32_t)(0u - (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u)))); + { + wuffs_base__io_buffer* o_0_v_r = v_r; + const uint8_t* o_0_iop_v_r = iop_v_r; + const uint8_t* o_0_io0_v_r = io0_v_r; + const uint8_t* o_0_io1_v_r = io1_v_r; + const uint8_t* o_0_io2_v_r = io2_v_r; + v_r = wuffs_private_impl__io_reader__set( + &u_r, + &iop_v_r, + &io0_v_r, + &io1_v_r, + &io2_v_r, + wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, + self->private_impl.f_bitstream_ri, + self->private_impl.f_bitstream_wi), + ((uint64_t)(self->private_impl.f_bitstream_ri))); + do { + while (self->private_impl.f_mcu_current_block < self->private_impl.f_mcu_num_blocks) { + if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { + v_ret = 1u; + goto label__goto_done__break; + } + do { + if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { + v_ret = 2u; + goto label__goto_done__break; + } + v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); + iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); + v_n_bits |= 56u; + v_dc_h = self->private_impl.f_mcu_blocks_dc_hselector[self->private_impl.f_mcu_current_block]; + v_dc_ht_fast = ((uint32_t)(self->private_impl.f_huff_tables_fast[v_dc_h][(v_bits >> 56u)])); + v_dc_bl = (v_dc_ht_fast >> 8u); + if (v_n_bits >= v_dc_bl) { + v_dc_symbol = (15u & v_dc_ht_fast); + v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; + v_bits <<= (v_dc_bl & 63u); + v_n_bits -= v_dc_bl; + } else { + v_dc_code = ((uint32_t)((v_bits >> 55u))); + v_dc_blm1 = 8u; + v_bits <<= 9u; + v_n_bits -= 9u; + while (true) { + v_dc_ht_slow = self->private_impl.f_huff_tables_slow[v_dc_h][v_dc_blm1]; + if (v_dc_code < (v_dc_ht_slow >> 8u)) { + v_dc_symbol = (15u & ((uint32_t)(self->private_impl.f_huff_tables_symbols[v_dc_h][(255u & ((uint32_t)(v_dc_code + v_dc_ht_slow)))]))); + v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; + break; + } + v_dc_code = (((uint32_t)(v_dc_code << 1u)) | ((uint32_t)((v_bits >> 63u)))); + v_bits <<= 1u; + v_n_bits -= 1u; + v_dc_blm1 = ((v_dc_blm1 + 1u) & 15u); + if (v_dc_blm1 == 0u) { + v_dc_symbol = 0u; + v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; + break; + } + } + } + v_dc_value = ((uint16_t)(((v_bits >> 32u) >> (32u - v_dc_symbol)))); +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_dc_value += ((uint16_t)(v_dc_extend & ((uint16_t)(((uint16_t)(wuffs_base__utility__sign_extend_rshift_u64(v_bits, 63u))) ^ 65535u)))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_bits <<= v_dc_symbol; + v_n_bits -= v_dc_symbol; + v_csel = self->private_impl.f_scan_comps_cselector[self->private_impl.f_mcu_blocks_sselector[self->private_impl.f_mcu_current_block]]; +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_impl.f_mcu_previous_dc_values[v_csel] += v_dc_value; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + self->private_data.f_mcu_blocks[self->private_impl.f_mcu_current_block][0u] = ((uint16_t)(self->private_impl.f_mcu_previous_dc_values[v_csel] << self->private_impl.f_scan_al)); + } while (0); + self->private_impl.f_mcu_current_block += 1u; } - self->private_data.f_mcu_blocks[0u][24u] = ((uint16_t)(v_scratch)); + self->private_impl.f_mcu_current_block = 0u; + } while (0); + label__goto_done__break:; + v_pos = ((uint32_t)(wuffs_base__u64__sat_add((v_r ? v_r->meta.pos : 0), ((uint64_t)(iop_v_r - io0_v_r))))); + if (v_pos > self->private_impl.f_bitstream_wi) { + v_ret = 2u; + } else { + self->private_impl.f_bitstream_ri = v_pos; } - } else { - v_al = self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][1u]; - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][1u])); - if ((v_al > 0u) && (v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][1u] == 0u)) { - v_limit = ((((uint32_t)(1u)) << v_al) - 1u); - v_scratch = 0u; - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(4294967289u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(50u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(4294967246u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); - } else { - v_scratch = ((uint32_t)(0u - wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); + v_r = o_0_v_r; + iop_v_r = o_0_iop_v_r; + io0_v_r = o_0_io0_v_r; + io1_v_r = o_0_io1_v_r; + io2_v_r = o_0_io2_v_r; + } + self->private_impl.f_bitstream_bits = v_bits; + self->private_impl.f_bitstream_n_bits = v_n_bits; + return v_ret; +} + +// -------- func jpeg.decoder.decode_mcu_progressive_dc_low_bit + +WUFFS_BASE__GENERATED_C_CODE +static uint32_t +wuffs_jpeg__decoder__decode_mcu_progressive_dc_low_bit( + wuffs_jpeg__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf, + uint32_t a_mx, + uint32_t a_my) { + uint32_t v_ret = 0; + uint64_t v_bits = 0; + uint32_t v_n_bits = 0; + uint16_t v_one_lshift_scan_al = 0; + wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); + wuffs_base__io_buffer* v_r = &u_r; + const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint32_t v_pos = 0; + + v_bits = self->private_impl.f_bitstream_bits; + v_n_bits = self->private_impl.f_bitstream_n_bits; + v_one_lshift_scan_al = ((uint16_t)(((uint16_t)(1u)) << self->private_impl.f_scan_al)); + if (self->private_impl.f_bitstream_ri > self->private_impl.f_bitstream_wi) { + return 2u; + } + { + wuffs_base__io_buffer* o_0_v_r = v_r; + const uint8_t* o_0_iop_v_r = iop_v_r; + const uint8_t* o_0_io0_v_r = io0_v_r; + const uint8_t* o_0_io1_v_r = io1_v_r; + const uint8_t* o_0_io2_v_r = io2_v_r; + v_r = wuffs_private_impl__io_reader__set( + &u_r, + &iop_v_r, + &io0_v_r, + &io1_v_r, + &io2_v_r, + wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, + self->private_impl.f_bitstream_ri, + self->private_impl.f_bitstream_wi), + ((uint64_t)(self->private_impl.f_bitstream_ri))); + do { + while (self->private_impl.f_mcu_current_block < self->private_impl.f_mcu_num_blocks) { + if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { + v_ret = 1u; + goto label__goto_done__break; + } + do { + if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { + v_ret = 2u; + goto label__goto_done__break; + } + v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); + iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); + v_n_bits |= 56u; + if ((v_bits >> 63u) != 0u) { + self->private_data.f_mcu_blocks[self->private_impl.f_mcu_current_block][0u] |= v_one_lshift_scan_al; + } + v_bits <<= 1u; + v_n_bits -= 1u; + } while (0); + self->private_impl.f_mcu_current_block += 1u; } - self->private_data.f_mcu_blocks[0u][1u] = ((uint16_t)(v_scratch)); + self->private_impl.f_mcu_current_block = 0u; + } while (0); + label__goto_done__break:; + v_pos = ((uint32_t)(wuffs_base__u64__sat_add((v_r ? v_r->meta.pos : 0), ((uint64_t)(iop_v_r - io0_v_r))))); + if (v_pos > self->private_impl.f_bitstream_wi) { + v_ret = 2u; + } else { + self->private_impl.f_bitstream_ri = v_pos; } - v_al = self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][5u]; - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][2u])); - if ((v_al > 0u) && (v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][2u] == 0u)) { - v_limit = ((((uint32_t)(1u)) << v_al) - 1u); - v_scratch = 0u; - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(4294967272u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); - } else { - v_scratch = ((uint32_t)(0u - wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); - } - self->private_data.f_mcu_blocks[0u][2u] = ((uint16_t)(v_scratch)); + v_r = o_0_v_r; + iop_v_r = o_0_iop_v_r; + io0_v_r = o_0_io0_v_r; + io1_v_r = o_0_io1_v_r; + io2_v_r = o_0_io2_v_r; + } + self->private_impl.f_bitstream_bits = v_bits; + self->private_impl.f_bitstream_n_bits = v_n_bits; + return v_ret; +} + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__JPEG) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__JSON) + +// ---------------- Status Codes Implementations + +const char wuffs_json__error__bad_c0_control_code[] = "#json: bad C0 control code"; +const char wuffs_json__error__bad_utf_8[] = "#json: bad UTF-8"; +const char wuffs_json__error__bad_backslash_escape[] = "#json: bad backslash-escape"; +const char wuffs_json__error__bad_input[] = "#json: bad input"; +const char wuffs_json__error__bad_new_line_in_a_string[] = "#json: bad new-line in a string"; +const char wuffs_json__error__bad_quirk_combination[] = "#json: bad quirk combination"; +const char wuffs_json__error__unsupported_number_length[] = "#json: unsupported number length"; +const char wuffs_json__error__unsupported_recursion_depth[] = "#json: unsupported recursion depth"; +const char wuffs_json__error__internal_error_inconsistent_i_o[] = "#json: internal error: inconsistent I/O"; + +// ---------------- Private Consts + +#define WUFFS_JSON__DECODER_NUMBER_LENGTH_MAX_INCL 99u + +static const uint8_t +WUFFS_JSON__LUT_BACKSLASHES[256] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 3u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 162u, 0u, 0u, 0u, 0u, 5u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 175u, + 7u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 4u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 220u, 0u, 0u, 0u, + 0u, 1u, 136u, 0u, 0u, 2u, 140u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 138u, 0u, + 0u, 0u, 141u, 0u, 137u, 0u, 6u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, +}; + +static const uint8_t +WUFFS_JSON__LUT_QUIRKY_BACKSLASHES_QUIRKS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 1u, 3u, 4u, 5u, 6u, 7u, 10u, +}; + +static const uint8_t +WUFFS_JSON__LUT_QUIRKY_BACKSLASHES_CHARS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 7u, 27u, 10u, 63u, 39u, 11u, 0u, +}; + +static const uint8_t +WUFFS_JSON__LUT_CHARS[256] WUFFS_BASE__POTENTIALLY_UNUSED = { + 128u, 129u, 130u, 131u, 132u, 133u, 134u, 135u, + 136u, 137u, 138u, 139u, 140u, 141u, 142u, 143u, + 144u, 145u, 146u, 147u, 148u, 149u, 150u, 151u, + 152u, 153u, 154u, 155u, 156u, 157u, 158u, 159u, + 0u, 0u, 1u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 2u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, + 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, + 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, + 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, + 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, + 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, + 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, + 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, + 32u, 32u, 3u, 3u, 3u, 3u, 3u, 3u, + 3u, 3u, 3u, 3u, 3u, 3u, 3u, 3u, + 3u, 3u, 3u, 3u, 3u, 3u, 3u, 3u, + 3u, 3u, 3u, 3u, 3u, 3u, 3u, 3u, + 4u, 4u, 4u, 4u, 4u, 4u, 4u, 4u, + 4u, 4u, 4u, 4u, 4u, 4u, 4u, 4u, + 5u, 5u, 5u, 5u, 5u, 32u, 32u, 32u, + 32u, 32u, 32u, 32u, 32u, 32u, 32u, 32u, +}; + +#define WUFFS_JSON__CLASS_WHITESPACE 0u + +#define WUFFS_JSON__CLASS_STRING 1u + +#define WUFFS_JSON__CLASS_COMMA 2u + +#define WUFFS_JSON__CLASS_COLON 3u + +#define WUFFS_JSON__CLASS_NUMBER 4u + +#define WUFFS_JSON__CLASS_OPEN_CURLY_BRACE 5u + +#define WUFFS_JSON__CLASS_CLOSE_CURLY_BRACE 6u + +#define WUFFS_JSON__CLASS_OPEN_SQUARE_BRACKET 7u + +#define WUFFS_JSON__CLASS_CLOSE_SQUARE_BRACKET 8u + +#define WUFFS_JSON__CLASS_FALSE 9u + +#define WUFFS_JSON__CLASS_TRUE 10u + +#define WUFFS_JSON__CLASS_NULL_NAN_INF 11u + +#define WUFFS_JSON__CLASS_COMMENT 12u + +#define WUFFS_JSON__EXPECT_VALUE 7858u + +#define WUFFS_JSON__EXPECT_NON_STRING_VALUE 7856u + +#define WUFFS_JSON__EXPECT_STRING 4098u + +#define WUFFS_JSON__EXPECT_COMMA 4100u + +#define WUFFS_JSON__EXPECT_COLON 4104u + +#define WUFFS_JSON__EXPECT_NUMBER 4112u + +#define WUFFS_JSON__EXPECT_CLOSE_CURLY_BRACE 4160u + +#define WUFFS_JSON__EXPECT_CLOSE_SQUARE_BRACKET 4352u + +static const uint8_t +WUFFS_JSON__LUT_CLASSES[256] WUFFS_BASE__POTENTIALLY_UNUSED = { + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 0u, 0u, 15u, 15u, 0u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 0u, 15u, 1u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 11u, 2u, 4u, 15u, 12u, + 4u, 4u, 4u, 4u, 4u, 4u, 4u, 4u, + 4u, 4u, 3u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 11u, 15u, 15u, 15u, 15u, 11u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 7u, 15u, 8u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 9u, 15u, + 15u, 11u, 15u, 15u, 15u, 15u, 11u, 15u, + 15u, 15u, 15u, 15u, 10u, 15u, 15u, 15u, + 15u, 15u, 15u, 5u, 15u, 6u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, + 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, +}; + +static const uint8_t +WUFFS_JSON__LUT_DECIMAL_DIGITS[256] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 128u, 129u, 130u, 131u, 132u, 133u, 134u, 135u, + 136u, 137u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, +}; + +static const uint8_t +WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[256] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 128u, 129u, 130u, 131u, 132u, 133u, 134u, 135u, + 136u, 137u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 138u, 139u, 140u, 141u, 142u, 143u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 138u, 139u, 140u, 141u, 142u, 143u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, +}; + +#define WUFFS_JSON__QUIRKS_BASE 1167656960u + +#define WUFFS_JSON__QUIRKS_COUNT 21u + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +static uint32_t +wuffs_json__decoder__decode_number( + wuffs_json__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static uint32_t +wuffs_json__decoder__decode_digits( + wuffs_json__decoder* self, + wuffs_base__io_buffer* a_src, + uint32_t a_n); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_json__decoder__decode_leading( + wuffs_json__decoder* self, + wuffs_base__token_buffer* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_json__decoder__decode_comment( + wuffs_json__decoder* self, + wuffs_base__token_buffer* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_json__decoder__decode_inf_nan( + wuffs_json__decoder* self, + wuffs_base__token_buffer* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_json__decoder__decode_trailer( + wuffs_json__decoder* self, + wuffs_base__token_buffer* a_dst, + wuffs_base__io_buffer* a_src); + +// ---------------- VTables + +const wuffs_base__token_decoder__func_ptrs +wuffs_json__decoder__func_ptrs_for__wuffs_base__token_decoder = { + (wuffs_base__status(*)(void*, + wuffs_base__token_buffer*, + wuffs_base__io_buffer*, + wuffs_base__slice_u8))(&wuffs_json__decoder__decode_tokens), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_json__decoder__get_quirk), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_json__decoder__set_quirk), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_json__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_json__decoder__initialize( + wuffs_json__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); } - v_al = self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][2u]; - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][8u])); - if ((v_al > 0u) && (v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][8u] == 0u)) { - v_limit = ((((uint32_t)(1u)) << v_al) - 1u); - v_scratch = 0u; - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(4294967289u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(50u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(4294967246u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(7u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); - } else { - v_scratch = ((uint32_t)(0u - wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); - } - self->private_data.f_mcu_blocks[0u][8u] = ((uint16_t)(v_scratch)); +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); } - v_al = self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][4u]; - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][9u])); - if ((v_al > 0u) && (v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][9u] == 0u)) { - v_limit = ((((uint32_t)(1u)) << v_al) - 1u); - v_scratch = 0u; - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(10u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(4294967286u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(4294967286u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(10u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(1u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); - } else { - v_scratch = ((uint32_t)(0u - wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); + } + + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__token_decoder.vtable_name = + wuffs_base__token_decoder__vtable_name; + self->private_impl.vtable_for__wuffs_base__token_decoder.function_pointers = + (const void*)(&wuffs_json__decoder__func_ptrs_for__wuffs_base__token_decoder); + return wuffs_base__make_status(NULL); +} + +wuffs_json__decoder* +wuffs_json__decoder__alloc(void) { + wuffs_json__decoder* x = + (wuffs_json__decoder*)(calloc(1, sizeof(wuffs_json__decoder))); + if (!x) { + return NULL; + } + if (wuffs_json__decoder__initialize( + x, sizeof(wuffs_json__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_json__decoder(void) { + return sizeof(wuffs_json__decoder); +} + +// ---------------- Function Implementations + +// -------- func json.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_json__decoder__get_quirk( + const wuffs_json__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + uint32_t v_key = 0; + + if (a_key >= 1167656960u) { + v_key = (a_key - 1167656960u); + if (v_key < 21u) { + if (self->private_impl.f_quirks[v_key]) { + return 1u; } - self->private_data.f_mcu_blocks[0u][9u] = ((uint16_t)(v_scratch)); } - v_al = self->private_impl.f_block_smoothing_lowest_scan_al[a_csel][3u]; - v_q_xy = ((uint32_t)(self->private_impl.f_quant_tables[v_q][16u])); - if ((v_al > 0u) && (v_q_xy > 0u) && (self->private_data.f_mcu_blocks[0u][16u] == 0u)) { - v_limit = ((((uint32_t)(1u)) << v_al) - 1u); - v_scratch = 0u; - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][1u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[0u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][1u]))); - v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[1u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][1u]))); - v_scratch += ((uint32_t)(4294967272u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[2u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][1u]))); - v_scratch += ((uint32_t)(13u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[3u][4u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][0u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][1u]))); - v_scratch += ((uint32_t)(4294967295u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][2u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][3u]))); - v_scratch += ((uint32_t)(0u * wuffs_base__utility__sign_extend_convert_u16_u32(self->private_impl.f_block_smoothing_dc_values[4u][4u]))); - v_scratch *= v_q_00; - if (v_scratch < 2147483648u) { - v_scratch = ((uint32_t)(0u + wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u + v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); - } else { - v_scratch = ((uint32_t)(0u - wuffs_base__u32__min(v_limit, (((uint32_t)(((uint32_t)(0u - v_scratch)) + (v_q_xy << 7u))) / (v_q_xy << 8u))))); - } - self->private_data.f_mcu_blocks[0u][16u] = ((uint16_t)(v_scratch)); + } + return 0u; +} + +// -------- func json.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_json__decoder__set_quirk( + wuffs_json__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + if (a_key >= 1167656960u) { + a_key -= 1167656960u; + if (a_key < 21u) { + self->private_impl.f_quirks[a_key] = (a_value > 0u); + return wuffs_base__make_status(NULL); } } - return wuffs_base__make_empty_struct(); + return wuffs_base__make_status(wuffs_base__error__unsupported_option); } -// -------- func jpeg.decoder.decode_mcu +// -------- func json.decoder.workbuf_len WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_jpeg__decoder__decode_mcu( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_mx, - uint32_t a_my) { - return (*self->private_impl.choosy_decode_mcu)(self, a_workbuf, a_mx, a_my); +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_json__decoder__workbuf_len( + const wuffs_json__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + return wuffs_base__utility__empty_range_ii_u64(); } +// -------- func json.decoder.decode_tokens + WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_jpeg__decoder__decode_mcu__choosy_default( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_mx, - uint32_t a_my) { - uint32_t v_ret = 0; - uint64_t v_bits = 0; - uint32_t v_n_bits = 0; - uint8_t v_csel = 0; - wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); - wuffs_base__io_buffer* v_r = &u_r; - const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint32_t v_pos = 0; - uint8_t v_dc_h = 0; - uint32_t v_dc_symbol = 0; - uint32_t v_dc_ht_fast = 0; - uint32_t v_dc_bl = 0; - uint32_t v_dc_code = 0; - uint32_t v_dc_blm1 = 0; - uint32_t v_dc_ht_slow = 0; - uint16_t v_dc_value = 0; - uint16_t v_dc_extend = 0; - const uint16_t* v_ac_huff_table_fast = NULL; - uint8_t v_ac_h = 0; - uint32_t v_ac_symbol = 0; - uint32_t v_ac_ht_fast = 0; - uint32_t v_ac_bl = 0; - uint32_t v_ac_code = 0; - uint32_t v_ac_blm1 = 0; - uint32_t v_ac_ht_slow = 0; - uint16_t v_ac_value = 0; - uint16_t v_ac_extend = 0; - uint32_t v_ac_rrrr = 0; - uint32_t v_ac_ssss = 0; - uint32_t v_z = 0; - uint32_t v_mcb = 0; - uint64_t v_stride = 0; - uint64_t v_offset = 0; +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_json__decoder__decode_tokens( + wuffs_json__decoder* self, + wuffs_base__token_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); - v_bits = self->private_impl.f_bitstream_bits; - v_n_bits = self->private_impl.f_bitstream_n_bits; - if (self->private_impl.f_bitstream_ri > self->private_impl.f_bitstream_wi) { - return 2u; + uint32_t v_vminor = 0; + uint32_t v_number_length = 0; + uint32_t v_number_status = 0; + uint32_t v_string_length = 0; + uint32_t v_whitespace_length = 0; + uint32_t v_depth = 0; + uint32_t v_stack_byte = 0; + uint32_t v_stack_bit = 0; + uint32_t v_match = 0; + uint32_t v_c32 = 0; + uint8_t v_c8 = 0; + uint8_t v_backslash = 0; + uint8_t v_char = 0; + uint8_t v_class = 0; + uint32_t v_multi_byte_utf8 = 0; + uint8_t v_backslash_x_ok = 0; + uint8_t v_backslash_x_value = 0; + uint32_t v_backslash_x_string = 0; + uint8_t v_uni4_ok = 0; + uint64_t v_uni4_string = 0; + uint32_t v_uni4_value = 0; + uint32_t v_uni4_high_surrogate = 0; + uint8_t v_uni8_ok = 0; + uint64_t v_uni8_string = 0; + uint32_t v_uni8_value = 0; + uint32_t v_expect = 0; + uint32_t v_expect_after_value = 0; + + wuffs_base__token* iop_a_dst = NULL; + wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } } - { - wuffs_base__io_buffer* o_0_v_r = v_r; - const uint8_t *o_0_iop_v_r = iop_v_r; - const uint8_t *o_0_io0_v_r = io0_v_r; - const uint8_t *o_0_io1_v_r = io1_v_r; - const uint8_t *o_0_io2_v_r = io2_v_r; - v_r = wuffs_private_impl__io_reader__set( - &u_r, - &iop_v_r, - &io0_v_r, - &io1_v_r, - &io2_v_r, - wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, - self->private_impl.f_bitstream_ri, - self->private_impl.f_bitstream_wi), - ((uint64_t)(self->private_impl.f_bitstream_ri))); - do { - while (self->private_impl.f_mcu_current_block < self->private_impl.f_mcu_num_blocks) { - while (self->private_impl.f_mcu_zig_index <= 0u) { - wuffs_private_impl__bulk_memset(&self->private_data.f_mcu_blocks[0], 1u * (size_t)128u, 0u); - if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { - v_ret = 1u; - goto label__goto_done__break; + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_tokens; + if (coro_susp_point) { + v_depth = self->private_data.s_decode_tokens.v_depth; + v_expect = self->private_data.s_decode_tokens.v_expect; + v_expect_after_value = self->private_data.s_decode_tokens.v_expect_after_value; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_end_of_data) { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + if (self->private_impl.f_quirks[18u]) { + if (self->private_impl.f_quirks[11u] || self->private_impl.f_quirks[12u] || self->private_impl.f_quirks[17u]) { + status = wuffs_base__make_status(wuffs_json__error__bad_quirk_combination); + goto exit; + } + } + if (self->private_impl.f_quirks[15u] || self->private_impl.f_quirks[16u]) { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_json__decoder__decode_leading(self, a_dst, a_src); + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } + v_expect = 7858u; + label__outer__continue:; + while (true) { + while (true) { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + goto label__outer__continue; + } + v_whitespace_length = 0u; + v_c8 = 0u; + v_class = 0u; + while (true) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if (v_whitespace_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(v_whitespace_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_whitespace_length = 0u; + } + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); + goto label__outer__continue; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + v_class = WUFFS_JSON__LUT_CLASSES[v_c8]; + if (v_class != 0u) { + break; + } + iop_a_src += 1u; + if (v_whitespace_length >= 65534u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(65535u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_whitespace_length = 0u; + goto label__outer__continue; + } + v_whitespace_length += 1u; + } + if (v_whitespace_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(v_whitespace_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_whitespace_length = 0u; + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + goto label__outer__continue; + } + } + if (0u == (v_expect & (((uint32_t)(1u)) << v_class))) { + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } + if (v_class == 1u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194579u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 1u; + label__string_loop_outer__continue:; + while (true) { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); + continue; + } + v_string_length = 0u; + while (true) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if (v_string_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + } + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); + goto label__string_loop_outer__continue; + } + while (((uint64_t)(io2_a_src - iop_a_src)) > 4u) { + v_c32 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + if (0u != (WUFFS_JSON__LUT_CHARS[(255u & (v_c32 >> 0u))] | + WUFFS_JSON__LUT_CHARS[(255u & (v_c32 >> 8u))] | + WUFFS_JSON__LUT_CHARS[(255u & (v_c32 >> 16u))] | + WUFFS_JSON__LUT_CHARS[(255u & (v_c32 >> 24u))])) { + break; + } + iop_a_src += 4u; + if (v_string_length > 65527u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)((v_string_length + 4u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + goto label__string_loop_outer__continue; + } + v_string_length += 4u; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + v_char = WUFFS_JSON__LUT_CHARS[v_c8]; + if (v_char == 0u) { + iop_a_src += 1u; + if (v_string_length >= 65531u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(65532u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + goto label__string_loop_outer__continue; + } + v_string_length += 1u; + continue; + } else if (v_char == 1u) { + if (v_string_length != 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + } + goto label__string_loop_outer__break; + } else if (v_char == 2u) { + if (v_string_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + goto label__string_loop_outer__continue; + } + } + if (((uint64_t)(io2_a_src - iop_a_src)) < 2u) { + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); + goto label__string_loop_outer__continue; + } + v_c8 = ((uint8_t)(((uint16_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src) >> 8u)))); + v_backslash = WUFFS_JSON__LUT_BACKSLASHES[v_c8]; + if (((uint8_t)(v_backslash & 128u)) != 0u) { + iop_a_src += 2u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((6291456u | ((uint32_t)(((uint8_t)(v_backslash & 127u))))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__string_loop_outer__continue; + } else if (v_backslash != 0u) { + if (self->private_impl.f_quirks[WUFFS_JSON__LUT_QUIRKY_BACKSLASHES_QUIRKS[((uint8_t)(v_backslash & 7u))]]) { + iop_a_src += 2u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((6291456u | ((uint32_t)(WUFFS_JSON__LUT_QUIRKY_BACKSLASHES_CHARS[((uint8_t)(v_backslash & 7u))]))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__string_loop_outer__continue; + } + } else if (v_c8 == 117u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 6u) { + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); + goto label__string_loop_outer__continue; + } + v_uni4_string = (((uint64_t)(wuffs_base__peek_u48le__no_bounds_check(iop_a_src))) >> 16u); + v_uni4_value = 0u; + v_uni4_ok = 128u; + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 0u))]; + v_uni4_ok &= v_c8; + v_uni4_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 12u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 8u))]; + v_uni4_ok &= v_c8; + v_uni4_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 8u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 16u))]; + v_uni4_ok &= v_c8; + v_uni4_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 4u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 24u))]; + v_uni4_ok &= v_c8; + v_uni4_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 0u); + if (v_uni4_ok == 0u) { + } else if ((v_uni4_value < 55296u) || (57343u < v_uni4_value)) { + iop_a_src += 6u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((6291456u | v_uni4_value))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(6u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__string_loop_outer__continue; + } else if (v_uni4_value >= 56320u) { + } else { + if (((uint64_t)(io2_a_src - iop_a_src)) < 12u) { + if (a_src && a_src->meta.closed) { + if (self->private_impl.f_quirks[20u]) { + iop_a_src += 6u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(6u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__string_loop_outer__continue; + } + status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); + goto label__string_loop_outer__continue; + } + v_uni4_string = (wuffs_base__peek_u64le__no_bounds_check(iop_a_src + 4u) >> 16u); + if (((255u & (v_uni4_string >> 0u)) != 92u) || ((255u & (v_uni4_string >> 8u)) != 117u)) { + v_uni4_high_surrogate = 0u; + v_uni4_value = 0u; + v_uni4_ok = 0u; + } else { + v_uni4_high_surrogate = (65536u + ((v_uni4_value - 55296u) << 10u)); + v_uni4_value = 0u; + v_uni4_ok = 128u; + v_uni4_string >>= 16u; + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 0u))]; + v_uni4_ok &= v_c8; + v_uni4_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 12u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 8u))]; + v_uni4_ok &= v_c8; + v_uni4_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 8u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 16u))]; + v_uni4_ok &= v_c8; + v_uni4_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 4u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 24u))]; + v_uni4_ok &= v_c8; + v_uni4_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 0u); + } + if ((v_uni4_ok != 0u) && (56320u <= v_uni4_value) && (v_uni4_value <= 57343u)) { + v_uni4_value -= 56320u; + iop_a_src += 12u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((6291456u | v_uni4_high_surrogate | v_uni4_value))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(12u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__string_loop_outer__continue; + } + } + if (self->private_impl.f_quirks[20u]) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 6u) { + status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); + goto exit; + } + iop_a_src += 6u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(6u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__string_loop_outer__continue; + } + } else if ((v_c8 == 85u) && self->private_impl.f_quirks[2u]) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 10u) { + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); + goto label__string_loop_outer__continue; + } + v_uni8_string = wuffs_base__peek_u64le__no_bounds_check(iop_a_src + 2u); + v_uni8_value = 0u; + v_uni8_ok = 128u; + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 0u))]; + v_uni8_ok &= v_c8; + v_uni8_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 28u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 8u))]; + v_uni8_ok &= v_c8; + v_uni8_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 24u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 16u))]; + v_uni8_ok &= v_c8; + v_uni8_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 20u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 24u))]; + v_uni8_ok &= v_c8; + v_uni8_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 16u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 32u))]; + v_uni8_ok &= v_c8; + v_uni8_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 12u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 40u))]; + v_uni8_ok &= v_c8; + v_uni8_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 8u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 48u))]; + v_uni8_ok &= v_c8; + v_uni8_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 4u); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 56u))]; + v_uni8_ok &= v_c8; + v_uni8_value |= (((uint32_t)(((uint8_t)(v_c8 & 15u)))) << 0u); + if (v_uni8_ok == 0u) { + } else if ((v_uni8_value < 55296u) || ((57343u < v_uni8_value) && (v_uni8_value <= 1114111u))) { + iop_a_src += 10u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((6291456u | (v_uni8_value & 2097151u)))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(10u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__string_loop_outer__continue; + } else if (self->private_impl.f_quirks[20u]) { + iop_a_src += 10u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(10u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__string_loop_outer__continue; + } + } else if ((v_c8 == 120u) && self->private_impl.f_quirks[9u]) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(10); + goto label__string_loop_outer__continue; + } + v_backslash_x_string = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + v_backslash_x_ok = 128u; + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_backslash_x_string >> 16u))]; + v_backslash_x_ok &= v_c8; + v_backslash_x_value = ((uint8_t)(((uint8_t)(((uint8_t)(v_c8 & 15u)) << 4u)))); + v_c8 = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_backslash_x_string >> 24u))]; + v_backslash_x_ok &= v_c8; + v_backslash_x_value = ((uint8_t)(((uint8_t)(v_backslash_x_value | ((uint8_t)(v_c8 & 15u)))))); + if ((v_backslash_x_ok == 0u) || ((v_backslash_x_string & 65535u) != 30812u)) { + status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); + goto exit; + } + iop_a_src += 4u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((6291456u | ((uint32_t)(v_backslash_x_value))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__string_loop_outer__continue; + } + status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); + goto exit; + } else if (v_char == 3u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 2u) { + if (v_string_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + goto label__string_loop_outer__continue; + } + } + if (a_src && a_src->meta.closed) { + if (self->private_impl.f_quirks[20u]) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 1u; + goto label__string_loop_outer__continue; + } + status = wuffs_base__make_status(wuffs_json__error__bad_utf_8); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(11); + goto label__string_loop_outer__continue; + } + v_multi_byte_utf8 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + if ((v_multi_byte_utf8 & 49152u) == 32768u) { + v_multi_byte_utf8 = ((1984u & ((uint32_t)(v_multi_byte_utf8 << 6u))) | (63u & (v_multi_byte_utf8 >> 8u))); + iop_a_src += 2u; + if (v_string_length >= 65528u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)((v_string_length + 2u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + goto label__string_loop_outer__continue; + } + v_string_length += 2u; + continue; + } + } else if (v_char == 4u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 3u) { + if (v_string_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + goto label__string_loop_outer__continue; + } + } + if (a_src && a_src->meta.closed) { + if (self->private_impl.f_quirks[20u]) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 1u; + goto label__string_loop_outer__continue; + } + status = wuffs_base__make_status(wuffs_json__error__bad_utf_8); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(12); + goto label__string_loop_outer__continue; + } + v_multi_byte_utf8 = ((uint32_t)(wuffs_base__peek_u24le__no_bounds_check(iop_a_src))); + if ((v_multi_byte_utf8 & 12632064u) == 8421376u) { + v_multi_byte_utf8 = ((61440u & ((uint32_t)(v_multi_byte_utf8 << 12u))) | (4032u & (v_multi_byte_utf8 >> 2u)) | (63u & (v_multi_byte_utf8 >> 16u))); + if ((2047u < v_multi_byte_utf8) && ((v_multi_byte_utf8 < 55296u) || (57343u < v_multi_byte_utf8))) { + iop_a_src += 3u; + if (v_string_length >= 65528u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)((v_string_length + 3u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + goto label__string_loop_outer__continue; + } + v_string_length += 3u; + continue; + } + } + } else if (v_char == 5u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { + if (v_string_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + goto label__string_loop_outer__continue; + } + } + if (a_src && a_src->meta.closed) { + if (self->private_impl.f_quirks[20u]) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 1u; + goto label__string_loop_outer__continue; + } + status = wuffs_base__make_status(wuffs_json__error__bad_utf_8); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(13); + goto label__string_loop_outer__continue; + } + v_multi_byte_utf8 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + if ((v_multi_byte_utf8 & 3233857536u) == 2155905024u) { + v_multi_byte_utf8 = ((1835008u & ((uint32_t)(v_multi_byte_utf8 << 18u))) | + (258048u & ((uint32_t)(v_multi_byte_utf8 << 4u))) | + (4032u & (v_multi_byte_utf8 >> 10u)) | + (63u & (v_multi_byte_utf8 >> 24u))); + if ((65535u < v_multi_byte_utf8) && (v_multi_byte_utf8 <= 1114111u)) { + iop_a_src += 4u; + if (v_string_length >= 65528u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)((v_string_length + 4u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + goto label__string_loop_outer__continue; + } + v_string_length += 4u; + continue; + } + } + } + if (v_string_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_string_length = 0u; + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + goto label__string_loop_outer__continue; + } + } + if (((uint8_t)(v_char & 128u)) != 0u) { + if (self->private_impl.f_quirks[0u]) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((6291456u | ((uint32_t)(((uint8_t)(v_char & 127u))))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 1u; + goto label__string_loop_outer__continue; + } + if (v_char == 138u) { + status = wuffs_base__make_status(wuffs_json__error__bad_new_line_in_a_string); + goto exit; + } + status = wuffs_base__make_status(wuffs_json__error__bad_c0_control_code); + goto exit; + } + if (self->private_impl.f_quirks[20u]) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 1u; + goto label__string_loop_outer__continue; + } + status = wuffs_base__make_status(wuffs_json__error__bad_utf_8); + goto exit; + } } - v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); - iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); - v_n_bits |= 56u; - v_dc_h = self->private_impl.f_mcu_blocks_dc_hselector[self->private_impl.f_mcu_current_block]; - v_dc_ht_fast = ((uint32_t)(self->private_impl.f_huff_tables_fast[v_dc_h][(v_bits >> 56u)])); - v_dc_bl = (v_dc_ht_fast >> 8u); - if (v_n_bits >= v_dc_bl) { - v_dc_symbol = (15u & v_dc_ht_fast); - v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; - v_bits <<= (v_dc_bl & 63u); - v_n_bits -= v_dc_bl; + label__string_loop_outer__break:; + while (true) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(14); + continue; + } + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(15); + continue; + } + iop_a_src += 1u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4194579u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + break; + } + if (0u == (v_expect & (((uint32_t)(1u)) << 4u))) { + v_expect = 4104u; + goto label__outer__continue; + } + break; + } else if (v_class == 2u) { + iop_a_src += 1u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + if (0u == (v_expect & (((uint32_t)(1u)) << 8u))) { + if (self->private_impl.f_quirks[13u]) { + v_expect = 4162u; + } else { + v_expect = 4098u; + } } else { - v_dc_code = ((uint32_t)((v_bits >> 55u))); - v_dc_blm1 = 8u; - v_bits <<= 9u; - v_n_bits -= 9u; - while (true) { - v_dc_ht_slow = self->private_impl.f_huff_tables_slow[v_dc_h][v_dc_blm1]; - if (v_dc_code < (v_dc_ht_slow >> 8u)) { - v_dc_symbol = (15u & ((uint32_t)(self->private_impl.f_huff_tables_symbols[v_dc_h][(255u & ((uint32_t)(v_dc_code + v_dc_ht_slow)))]))); - v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; + if (self->private_impl.f_quirks[13u]) { + v_expect = 8114u; + } else { + v_expect = 7858u; + } + } + goto label__outer__continue; + } else if (v_class == 3u) { + iop_a_src += 1u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_expect = 7858u; + goto label__outer__continue; + } else if (v_class == 4u) { + while (true) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + v_number_length = wuffs_json__decoder__decode_number(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + v_number_status = (v_number_length >> 8u); + v_vminor = 10486787u; + if ((v_number_length & 128u) != 0u) { + v_vminor = 10486785u; + } + v_number_length = (v_number_length & 127u); + if (v_number_status == 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(v_number_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + break; + } + while (v_number_length > 0u) { + v_number_length -= 1u; + if (iop_a_src > io1_a_src) { + iop_a_src--; + } else { + status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); + goto exit; + } + } + if (v_number_status == 1u) { + if (self->private_impl.f_quirks[14u]) { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); + status = wuffs_json__decoder__decode_inf_nan(self, a_dst, a_src); + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } break; } - v_dc_code = (((uint32_t)(v_dc_code << 1u)) | ((uint32_t)((v_bits >> 63u)))); - v_bits <<= 1u; - v_n_bits -= 1u; - v_dc_blm1 = ((v_dc_blm1 + 1u) & 15u); - if (v_dc_blm1 == 0u) { - v_dc_symbol = 0u; - v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; - break; + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } else if (v_number_status == 2u) { + status = wuffs_base__make_status(wuffs_json__error__unsupported_number_length); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(17); + while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(18); } } } - v_dc_value = ((uint16_t)(((v_bits >> 32u) >> (32u - v_dc_symbol)))); -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_dc_value += ((uint16_t)(v_dc_extend & ((uint16_t)(((uint16_t)(wuffs_base__utility__sign_extend_rshift_u64(v_bits, 63u))) ^ 65535u)))); -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - v_bits <<= v_dc_symbol; - v_n_bits -= v_dc_symbol; - v_csel = self->private_impl.f_scan_comps_cselector[self->private_impl.f_mcu_blocks_sselector[self->private_impl.f_mcu_current_block]]; -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - self->private_impl.f_mcu_previous_dc_values[v_csel] += v_dc_value; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - self->private_data.f_mcu_blocks[0u][0u] = self->private_impl.f_mcu_previous_dc_values[v_csel]; - self->private_impl.f_mcu_zig_index = 1u; break; - } - if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { - v_ret = 1u; - goto label__goto_done__break; - } - if (v_n_bits < 16u) { - v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); - } - v_z = 1u; - self->private_impl.f_mcu_zig_index = 0u; - v_ac_h = self->private_impl.f_mcu_blocks_ac_hselector[self->private_impl.f_mcu_current_block]; - v_ac_huff_table_fast = &self->private_impl.f_huff_tables_fast[v_ac_h][0u]; - while (v_z < 64u) { - v_ac_ht_fast = ((uint32_t)(v_ac_huff_table_fast[(v_bits >> 56u)])); - if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { - v_ret = 2u; - goto label__goto_done__break; + } else if (v_class == 5u) { + v_vminor = 2113553u; + if (v_depth == 0u) { + } else if (0u != (v_expect_after_value & (((uint32_t)(1u)) << 6u))) { + v_vminor = 2113601u; + } else { + v_vminor = 2113569u; } - v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); - iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); - v_n_bits |= 56u; - v_ac_bl = (v_ac_ht_fast >> 8u); - if (v_n_bits >= v_ac_bl) { - v_ac_symbol = (255u & v_ac_ht_fast); - v_bits <<= (v_ac_bl & 63u); - v_n_bits -= v_ac_bl; + if (v_depth >= 1024u) { + status = wuffs_base__make_status(wuffs_json__error__unsupported_recursion_depth); + goto exit; + } + v_stack_byte = (v_depth / 32u); + v_stack_bit = (v_depth & 31u); + self->private_data.f_stack[v_stack_byte] |= (((uint32_t)(1u)) << v_stack_bit); + v_depth += 1u; + iop_a_src += 1u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_expect = 4162u; + v_expect_after_value = 4164u; + goto label__outer__continue; + } else if (v_class == 6u) { + iop_a_src += 1u; + if (v_depth <= 1u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(2101314u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__outer__break; + } + v_depth -= 1u; + v_stack_byte = ((v_depth - 1u) / 32u); + v_stack_bit = ((v_depth - 1u) & 31u); + if (0u == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1u)) << v_stack_bit))) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(2105410u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_expect = 4356u; + v_expect_after_value = 4356u; } else { - v_ac_code = ((uint32_t)((v_bits >> 55u))); - v_ac_blm1 = 8u; - v_bits <<= 9u; - v_n_bits -= 9u; - while (true) { - v_ac_ht_slow = self->private_impl.f_huff_tables_slow[v_ac_h][v_ac_blm1]; - if (v_ac_code < (v_ac_ht_slow >> 8u)) { - v_ac_symbol = ((uint32_t)(self->private_impl.f_huff_tables_symbols[v_ac_h][(255u & ((uint32_t)(v_ac_code + v_ac_ht_slow)))])); - break; - } - v_ac_code = (((uint32_t)(v_ac_code << 1u)) | ((uint32_t)((v_bits >> 63u)))); - v_bits <<= 1u; - v_n_bits -= 1u; - v_ac_blm1 = ((v_ac_blm1 + 1u) & 15u); - if (v_ac_blm1 == 0u) { - v_ac_symbol = 0u; - break; - } - } + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(2113602u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_expect = 4164u; + v_expect_after_value = 4164u; } - v_ac_rrrr = (v_ac_symbol >> 4u); - v_z += (v_ac_rrrr + 1u); - v_ac_ssss = (v_ac_symbol & 15u); - v_ac_extend = WUFFS_JPEG__EXTEND[v_ac_ssss]; - if (v_ac_ssss > 0u) { - v_ac_value = ((uint16_t)((v_bits >> (64u - v_ac_ssss)))); -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_ac_value += ((uint16_t)(v_ac_extend & ((uint16_t)(((uint16_t)(wuffs_base__utility__sign_extend_rshift_u64(v_bits, 63u))) ^ 65535u)))); -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - v_bits <<= v_ac_ssss; - v_n_bits -= v_ac_ssss; - self->private_data.f_mcu_blocks[0u][WUFFS_JPEG__UNZIG[v_z]] = v_ac_value; - } else if (v_ac_rrrr < 15u) { - break; + goto label__outer__continue; + } else if (v_class == 7u) { + v_vminor = 2105361u; + if (v_depth == 0u) { + } else if (0u != (v_expect_after_value & (((uint32_t)(1u)) << 6u))) { + v_vminor = 2105409u; + } else { + v_vminor = 2105377u; } - } - v_mcb = self->private_impl.f_mcu_current_block; - self->private_impl.f_mcu_current_block += 1u; - if (self->private_impl.f_test_only_interrupt_decode_mcu) { - goto label__goto_done__break; - } - v_csel = self->private_impl.f_scan_comps_cselector[self->private_impl.f_mcu_blocks_sselector[v_mcb]]; - v_stride = ((uint64_t)(self->private_impl.f_components_workbuf_widths[v_csel])); - v_offset = (self->private_impl.f_mcu_blocks_offset[v_mcb] + (((uint64_t)(self->private_impl.f_mcu_blocks_mx_mul[v_mcb])) * ((uint64_t)(a_mx))) + (((uint64_t)(self->private_impl.f_mcu_blocks_my_mul[v_mcb])) * ((uint64_t)(a_my)))); - if (v_offset <= ((uint64_t)(a_workbuf.len))) { - wuffs_jpeg__decoder__decode_idct(self, wuffs_base__slice_u8__subslice_i(a_workbuf, v_offset), v_stride, ((uint32_t)(self->private_impl.f_components_tq[v_csel]))); - } - } - self->private_impl.f_mcu_current_block = 0u; - } while (0); - label__goto_done__break:; - v_pos = ((uint32_t)(wuffs_base__u64__sat_add((v_r ? v_r->meta.pos : 0), ((uint64_t)(iop_v_r - io0_v_r))))); - if (v_pos > self->private_impl.f_bitstream_wi) { - v_ret = 2u; - } else { - self->private_impl.f_bitstream_ri = v_pos; - } - v_r = o_0_v_r; - iop_v_r = o_0_iop_v_r; - io0_v_r = o_0_io0_v_r; - io1_v_r = o_0_io1_v_r; - io2_v_r = o_0_io2_v_r; - } - self->private_impl.f_bitstream_bits = v_bits; - self->private_impl.f_bitstream_n_bits = v_n_bits; - return v_ret; -} - -// -------- func jpeg.decoder.decode_mcu_progressive_ac_high_bits - -WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_jpeg__decoder__decode_mcu_progressive_ac_high_bits( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_mx, - uint32_t a_my) { - uint32_t v_ret = 0; - uint64_t v_bits = 0; - uint32_t v_n_bits = 0; - wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); - wuffs_base__io_buffer* v_r = &u_r; - const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint32_t v_pos = 0; - const uint16_t* v_ac_huff_table_fast = NULL; - uint8_t v_ac_h = 0; - uint32_t v_ac_symbol = 0; - uint32_t v_ac_ht_fast = 0; - uint32_t v_ac_bl = 0; - uint32_t v_ac_code = 0; - uint32_t v_ac_blm1 = 0; - uint32_t v_ac_ht_slow = 0; - uint16_t v_ac_value = 0; - uint16_t v_ac_extend = 0; - uint32_t v_ac_rrrr = 0; - uint32_t v_ac_ssss = 0; - uint32_t v_z = 0; - - if (self->private_impl.f_eob_run > 0u) { -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - self->private_impl.f_eob_run -= 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - return 0u; - } - v_bits = self->private_impl.f_bitstream_bits; - v_n_bits = self->private_impl.f_bitstream_n_bits; - if (self->private_impl.f_bitstream_ri > self->private_impl.f_bitstream_wi) { - return 2u; - } - { - wuffs_base__io_buffer* o_0_v_r = v_r; - const uint8_t *o_0_iop_v_r = iop_v_r; - const uint8_t *o_0_io0_v_r = io0_v_r; - const uint8_t *o_0_io1_v_r = io1_v_r; - const uint8_t *o_0_io2_v_r = io2_v_r; - v_r = wuffs_private_impl__io_reader__set( - &u_r, - &iop_v_r, - &io0_v_r, - &io1_v_r, - &io2_v_r, - wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, - self->private_impl.f_bitstream_ri, - self->private_impl.f_bitstream_wi), - ((uint64_t)(self->private_impl.f_bitstream_ri))); - do { - do { - if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { - v_ret = 1u; - goto label__goto_done__break; - } - if (v_n_bits < 16u) { - v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); - } - v_z = self->private_impl.f_mcu_zig_index; - self->private_impl.f_mcu_zig_index = 0u; - v_ac_h = self->private_impl.f_mcu_blocks_ac_hselector[0u]; - v_ac_huff_table_fast = &self->private_impl.f_huff_tables_fast[v_ac_h][0u]; - while (v_z <= ((uint32_t)(self->private_impl.f_scan_se))) { - v_ac_ht_fast = ((uint32_t)(v_ac_huff_table_fast[(v_bits >> 56u)])); - if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { - v_ret = 2u; - goto label__goto_done__break; + if (v_depth >= 1024u) { + status = wuffs_base__make_status(wuffs_json__error__unsupported_recursion_depth); + goto exit; } - v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); - iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); - v_n_bits |= 56u; - v_ac_bl = (v_ac_ht_fast >> 8u); - if (v_n_bits >= v_ac_bl) { - v_ac_symbol = (255u & v_ac_ht_fast); - v_bits <<= (v_ac_bl & 63u); - v_n_bits -= v_ac_bl; + v_stack_byte = (v_depth / 32u); + v_stack_bit = (v_depth & 31u); + self->private_data.f_stack[v_stack_byte] &= (4294967295u ^ (((uint32_t)(1u)) << v_stack_bit)); + v_depth += 1u; + iop_a_src += 1u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_expect = 8114u; + v_expect_after_value = 4356u; + goto label__outer__continue; + } else if (v_class == 8u) { + iop_a_src += 1u; + if (v_depth <= 1u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(2101282u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + goto label__outer__break; + } + v_depth -= 1u; + v_stack_byte = ((v_depth - 1u) / 32u); + v_stack_bit = ((v_depth - 1u) & 31u); + if (0u == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1u)) << v_stack_bit))) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(2105378u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_expect = 4356u; + v_expect_after_value = 4356u; } else { - v_ac_code = ((uint32_t)((v_bits >> 55u))); - v_ac_blm1 = 8u; - v_bits <<= 9u; - v_n_bits -= 9u; - while (true) { - v_ac_ht_slow = self->private_impl.f_huff_tables_slow[v_ac_h][v_ac_blm1]; - if (v_ac_code < (v_ac_ht_slow >> 8u)) { - v_ac_symbol = ((uint32_t)(self->private_impl.f_huff_tables_symbols[v_ac_h][(255u & ((uint32_t)(v_ac_code + v_ac_ht_slow)))])); - break; - } - v_ac_code = (((uint32_t)(v_ac_code << 1u)) | ((uint32_t)((v_bits >> 63u)))); - v_bits <<= 1u; - v_n_bits -= 1u; - v_ac_blm1 = ((v_ac_blm1 + 1u) & 15u); - if (v_ac_blm1 == 0u) { - v_ac_symbol = 0u; - break; - } - } + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(2113570u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_expect = 4164u; + v_expect_after_value = 4164u; } - v_ac_rrrr = (v_ac_symbol >> 4u); - v_z += (v_ac_rrrr + 1u); - v_ac_ssss = (v_ac_symbol & 15u); - v_ac_extend = WUFFS_JPEG__EXTEND[v_ac_ssss]; - if (v_ac_ssss > 0u) { - v_ac_value = ((uint16_t)((v_bits >> (64u - v_ac_ssss)))); -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_ac_value += ((uint16_t)(v_ac_extend & ((uint16_t)(((uint16_t)(wuffs_base__utility__sign_extend_rshift_u64(v_bits, 63u))) ^ 65535u)))); -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - v_bits <<= v_ac_ssss; - v_n_bits -= v_ac_ssss; - self->private_data.f_mcu_blocks[0u][WUFFS_JPEG__UNZIG[v_z]] = ((uint16_t)(((uint16_t)(v_ac_value << self->private_impl.f_scan_al)))); - } else if (v_ac_rrrr < 15u) { - self->private_impl.f_eob_run = ((uint16_t)(((uint16_t)(((uint16_t)(((uint16_t)(1u)) << v_ac_rrrr)) - 1u)))); - if (v_ac_rrrr > 0u) { -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - self->private_impl.f_eob_run += ((uint16_t)((v_bits >> (64u - v_ac_rrrr)))); -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - v_bits <<= v_ac_rrrr; - v_n_bits -= v_ac_rrrr; + goto label__outer__continue; + } else if (v_class == 9u) { + v_match = wuffs_private_impl__io_reader__match7(iop_a_src, io2_a_src, a_src, 111546413966853u); + if (v_match == 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(8388612u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(5u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + if (((uint64_t)(io2_a_src - iop_a_src)) < 5u) { + status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); + goto exit; } + iop_a_src += 5u; break; + } else if (v_match == 1u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(19); + goto label__outer__continue; } - } - } while (0); - } while (0); - label__goto_done__break:; - v_pos = ((uint32_t)(wuffs_base__u64__sat_add((v_r ? v_r->meta.pos : 0), ((uint64_t)(iop_v_r - io0_v_r))))); - if (v_pos > self->private_impl.f_bitstream_wi) { - v_ret = 2u; - } else { - self->private_impl.f_bitstream_ri = v_pos; - } - v_r = o_0_v_r; - iop_v_r = o_0_iop_v_r; - io0_v_r = o_0_io0_v_r; - io1_v_r = o_0_io1_v_r; - io2_v_r = o_0_io2_v_r; - } - self->private_impl.f_bitstream_bits = v_bits; - self->private_impl.f_bitstream_n_bits = v_n_bits; - return v_ret; -} - -// -------- func jpeg.decoder.decode_mcu_progressive_ac_low_bit - -WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_jpeg__decoder__decode_mcu_progressive_ac_low_bit( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_mx, - uint32_t a_my) { - uint32_t v_ret = 0; - uint64_t v_bits = 0; - uint32_t v_n_bits = 0; - uint16_t v_one_lshift_scan_al = 0; - wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); - wuffs_base__io_buffer* v_r = &u_r; - const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint32_t v_pos = 0; - const uint16_t* v_ac_huff_table_fast = NULL; - uint8_t v_ac_h = 0; - uint32_t v_ac_symbol = 0; - uint32_t v_ac_ht_fast = 0; - uint32_t v_ac_bl = 0; - uint32_t v_ac_code = 0; - uint32_t v_ac_blm1 = 0; - uint32_t v_ac_ht_slow = 0; - uint16_t v_ac_value = 0; - uint32_t v_ac_rrrr = 0; - uint32_t v_ac_ssss = 0; - uint8_t v_unzig = 0; - bool v_bit = false; - - v_bits = self->private_impl.f_bitstream_bits; - v_n_bits = self->private_impl.f_bitstream_n_bits; - v_one_lshift_scan_al = ((uint16_t)(((uint16_t)(1u)) << self->private_impl.f_scan_al)); - if (self->private_impl.f_bitstream_ri > self->private_impl.f_bitstream_wi) { - return 2u; - } - { - wuffs_base__io_buffer* o_0_v_r = v_r; - const uint8_t *o_0_iop_v_r = iop_v_r; - const uint8_t *o_0_io0_v_r = io0_v_r; - const uint8_t *o_0_io1_v_r = io1_v_r; - const uint8_t *o_0_io2_v_r = io2_v_r; - v_r = wuffs_private_impl__io_reader__set( - &u_r, - &iop_v_r, - &io0_v_r, - &io1_v_r, - &io2_v_r, - wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, - self->private_impl.f_bitstream_ri, - self->private_impl.f_bitstream_wi), - ((uint64_t)(self->private_impl.f_bitstream_ri))); - do { - do { - if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { - v_ret = 1u; - goto label__goto_done__break; - } - while (true) { - if (self->private_impl.f_eob_run > 0u) { + } else if (v_class == 10u) { + v_match = wuffs_private_impl__io_reader__match7(iop_a_src, io2_a_src, a_src, 435762131972u); + if (v_match == 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(8388616u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { + status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); + goto exit; + } + iop_a_src += 4u; break; + } else if (v_match == 1u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(20); + goto label__outer__continue; } - v_ac_h = self->private_impl.f_mcu_blocks_ac_hselector[0u]; - v_ac_huff_table_fast = &self->private_impl.f_huff_tables_fast[v_ac_h][0u]; - while (true) { - if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { - v_ret = 2u; - goto label__goto_done__break; - } - v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); - iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); - v_n_bits |= 56u; - v_ac_ht_fast = ((uint32_t)(v_ac_huff_table_fast[(v_bits >> 56u)])); - v_ac_bl = (v_ac_ht_fast >> 8u); - if (v_n_bits >= v_ac_bl) { - v_ac_symbol = (255u & v_ac_ht_fast); - v_bits <<= (v_ac_bl & 63u); - v_n_bits -= v_ac_bl; - } else { - v_ac_code = ((uint32_t)((v_bits >> 55u))); - v_ac_blm1 = 8u; - v_bits <<= 9u; - v_n_bits -= 9u; - while (true) { - v_ac_ht_slow = self->private_impl.f_huff_tables_slow[v_ac_h][v_ac_blm1]; - if (v_ac_code < (v_ac_ht_slow >> 8u)) { - v_ac_symbol = ((uint32_t)(self->private_impl.f_huff_tables_symbols[v_ac_h][(255u & ((uint32_t)(v_ac_code + v_ac_ht_slow)))])); - break; - } - v_ac_code = (((uint32_t)(v_ac_code << 1u)) | ((uint32_t)((v_bits >> 63u)))); - v_bits <<= 1u; - v_n_bits -= 1u; - v_ac_blm1 = ((v_ac_blm1 + 1u) & 15u); - if (v_ac_blm1 == 0u) { - v_ac_symbol = 0u; - break; - } - } + } else if (v_class == 11u) { + v_match = wuffs_private_impl__io_reader__match7(iop_a_src, io2_a_src, a_src, 465676103172u); + if (v_match == 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(8388610u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { + status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); + goto exit; } - v_ac_rrrr = (v_ac_symbol >> 4u); - v_ac_ssss = (v_ac_symbol & 15u); - v_ac_value = 0u; - if (v_ac_ssss > 0u) { - v_ac_value = ((uint16_t)(((uint16_t)(1u)) << self->private_impl.f_scan_al)); - if ((v_bits >> 63u) == 0u) { - v_ac_value = ((uint16_t)(((uint16_t)(65535u)) << self->private_impl.f_scan_al)); - } - v_bits <<= 1u; - v_n_bits -= 1u; - } else if (v_ac_rrrr < 15u) { - self->private_impl.f_eob_run = ((uint16_t)(((uint16_t)(1u)) << v_ac_rrrr)); - if (v_ac_rrrr > 0u) { -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - self->private_impl.f_eob_run += ((uint16_t)((v_bits >> (64u - v_ac_rrrr)))); -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - v_bits <<= v_ac_rrrr; - v_n_bits -= v_ac_rrrr; - } - goto label__goto_do_eob__break; + iop_a_src += 4u; + break; + } else if (v_match == 1u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(21); + goto label__outer__continue; + } + if (self->private_impl.f_quirks[14u]) { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); } - while (true) { - v_unzig = WUFFS_JPEG__UNZIG[(1u + self->private_impl.f_mcu_zig_index)]; - if (self->private_data.f_mcu_blocks[0u][v_unzig] != 0u) { - if (v_n_bits == 0u) { - if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { - v_ret = 2u; - goto label__goto_done__break; - } - v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); - iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); - v_n_bits |= 56u; - } - v_bit = ((v_bits >> 63u) > 0u); - v_bits <<= 1u; - v_n_bits -= 1u; - if (v_bit) { - if (self->private_data.f_mcu_blocks[0u][v_unzig] < 32768u) { -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - self->private_data.f_mcu_blocks[0u][v_unzig] += v_one_lshift_scan_al; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } else { -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - self->private_data.f_mcu_blocks[0u][v_unzig] -= v_one_lshift_scan_al; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } - } - } else if (v_ac_rrrr <= 0u) { - break; - } else { - v_ac_rrrr -= 1u; - } - if (self->private_impl.f_mcu_zig_index >= ((uint32_t)(self->private_impl.f_scan_se))) { - break; - } - self->private_impl.f_mcu_zig_index += 1u; + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - if (v_ac_value != 0u) { - self->private_data.f_mcu_blocks[0u][WUFFS_JPEG__UNZIG[(1u + self->private_impl.f_mcu_zig_index)]] = v_ac_value; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(22); + status = wuffs_json__decoder__decode_inf_nan(self, a_dst, a_src); + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; } - if (self->private_impl.f_mcu_zig_index >= ((uint32_t)(self->private_impl.f_scan_se))) { - break; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; } - self->private_impl.f_mcu_zig_index += 1u; + if (status.repr) { + goto suspend; + } + break; } - goto label__block__break; - } - label__goto_do_eob__break:; - if (self->private_impl.f_eob_run <= 0u) { - v_ret = 2u; - goto label__goto_done__break; - } - while (true) { - v_unzig = WUFFS_JPEG__UNZIG[(1u + self->private_impl.f_mcu_zig_index)]; - if (self->private_data.f_mcu_blocks[0u][v_unzig] != 0u) { - if (v_n_bits == 0u) { - if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { - v_ret = 2u; - goto label__goto_done__break; - } - v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); - iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); - v_n_bits |= 56u; + } else if (v_class == 12u) { + if (self->private_impl.f_quirks[11u] || self->private_impl.f_quirks[12u]) { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); } - v_bit = ((v_bits >> 63u) > 0u); - v_bits <<= 1u; - v_n_bits -= 1u; - if (v_bit) { - if (self->private_data.f_mcu_blocks[0u][v_unzig] < 32768u) { -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - self->private_data.f_mcu_blocks[0u][v_unzig] += v_one_lshift_scan_al; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } else { -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - self->private_data.f_mcu_blocks[0u][v_unzig] -= v_one_lshift_scan_al; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(23); + status = wuffs_json__decoder__decode_comment(self, a_dst, a_src); + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + if (self->private_impl.f_comment_type > 0u) { + goto label__outer__continue; } } - if (self->private_impl.f_mcu_zig_index >= ((uint32_t)(self->private_impl.f_scan_se))) { - break; - } - self->private_impl.f_mcu_zig_index += 1u; } -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - self->private_impl.f_eob_run -= 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } while (0); - label__block__break:; - } while (0); - label__goto_done__break:; - v_pos = ((uint32_t)(wuffs_base__u64__sat_add((v_r ? v_r->meta.pos : 0), ((uint64_t)(iop_v_r - io0_v_r))))); - if (v_pos > self->private_impl.f_bitstream_wi) { - v_ret = 2u; - } else { - self->private_impl.f_bitstream_ri = v_pos; + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } + if (v_depth == 0u) { + break; + } + v_expect = v_expect_after_value; } - v_r = o_0_v_r; - iop_v_r = o_0_iop_v_r; - io0_v_r = o_0_io0_v_r; - io1_v_r = o_0_io1_v_r; - io2_v_r = o_0_io2_v_r; + label__outer__break:; + if (self->private_impl.f_quirks[17u] || self->private_impl.f_quirks[18u]) { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(24); + status = wuffs_json__decoder__decode_trailer(self, a_dst, a_src); + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } + self->private_impl.f_end_of_data = true; + + ok: + self->private_impl.p_decode_tokens = 0; + goto exit; } - self->private_impl.f_bitstream_bits = v_bits; - self->private_impl.f_bitstream_n_bits = v_n_bits; - return v_ret; + + goto suspend; + suspend: + self->private_impl.p_decode_tokens = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + self->private_data.s_decode_tokens.v_depth = v_depth; + self->private_data.s_decode_tokens.v_expect = v_expect; + self->private_data.s_decode_tokens.v_expect_after_value = v_expect_after_value; + + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; } -// -------- func jpeg.decoder.decode_mcu_progressive_dc_high_bits +// -------- func json.decoder.decode_number WUFFS_BASE__GENERATED_C_CODE static uint32_t -wuffs_jpeg__decoder__decode_mcu_progressive_dc_high_bits( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_mx, - uint32_t a_my) { - uint32_t v_ret = 0; - uint64_t v_bits = 0; - uint32_t v_n_bits = 0; - uint8_t v_csel = 0; - wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); - wuffs_base__io_buffer* v_r = &u_r; - const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint32_t v_pos = 0; - uint8_t v_dc_h = 0; - uint32_t v_dc_symbol = 0; - uint32_t v_dc_ht_fast = 0; - uint32_t v_dc_bl = 0; - uint32_t v_dc_code = 0; - uint32_t v_dc_blm1 = 0; - uint32_t v_dc_ht_slow = 0; - uint16_t v_dc_value = 0; - uint16_t v_dc_extend = 0; +wuffs_json__decoder__decode_number( + wuffs_json__decoder* self, + wuffs_base__io_buffer* a_src) { + uint8_t v_c8 = 0; + uint32_t v_n = 0; + uint32_t v_floating_point = 0; - v_bits = self->private_impl.f_bitstream_bits; - v_n_bits = self->private_impl.f_bitstream_n_bits; - if (self->private_impl.f_bitstream_ri > self->private_impl.f_bitstream_wi) { - return 2u; + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - { - wuffs_base__io_buffer* o_0_v_r = v_r; - const uint8_t *o_0_iop_v_r = iop_v_r; - const uint8_t *o_0_io0_v_r = io0_v_r; - const uint8_t *o_0_io1_v_r = io1_v_r; - const uint8_t *o_0_io2_v_r = io2_v_r; - v_r = wuffs_private_impl__io_reader__set( - &u_r, - &iop_v_r, - &io0_v_r, - &io1_v_r, - &io2_v_r, - wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, - self->private_impl.f_bitstream_ri, - self->private_impl.f_bitstream_wi), - ((uint64_t)(self->private_impl.f_bitstream_ri))); - do { - while (self->private_impl.f_mcu_current_block < self->private_impl.f_mcu_num_blocks) { - if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { - v_ret = 1u; - goto label__goto_done__break; + + do { + v_n = 0u; + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if ( ! (a_src && a_src->meta.closed)) { + v_n |= 768u; + } + break; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + if (v_c8 != 45u) { + } else { + v_n += 1u; + iop_a_src += 1u; + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if ( ! (a_src && a_src->meta.closed)) { + v_n |= 768u; } - do { - if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { - v_ret = 2u; - goto label__goto_done__break; - } - v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); - iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); - v_n_bits |= 56u; - v_dc_h = self->private_impl.f_mcu_blocks_dc_hselector[self->private_impl.f_mcu_current_block]; - v_dc_ht_fast = ((uint32_t)(self->private_impl.f_huff_tables_fast[v_dc_h][(v_bits >> 56u)])); - v_dc_bl = (v_dc_ht_fast >> 8u); - if (v_n_bits >= v_dc_bl) { - v_dc_symbol = (15u & v_dc_ht_fast); - v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; - v_bits <<= (v_dc_bl & 63u); - v_n_bits -= v_dc_bl; - } else { - v_dc_code = ((uint32_t)((v_bits >> 55u))); - v_dc_blm1 = 8u; - v_bits <<= 9u; - v_n_bits -= 9u; - while (true) { - v_dc_ht_slow = self->private_impl.f_huff_tables_slow[v_dc_h][v_dc_blm1]; - if (v_dc_code < (v_dc_ht_slow >> 8u)) { - v_dc_symbol = (15u & ((uint32_t)(self->private_impl.f_huff_tables_symbols[v_dc_h][(255u & ((uint32_t)(v_dc_code + v_dc_ht_slow)))]))); - v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; - break; - } - v_dc_code = (((uint32_t)(v_dc_code << 1u)) | ((uint32_t)((v_bits >> 63u)))); - v_bits <<= 1u; - v_n_bits -= 1u; - v_dc_blm1 = ((v_dc_blm1 + 1u) & 15u); - if (v_dc_blm1 == 0u) { - v_dc_symbol = 0u; - v_dc_extend = WUFFS_JPEG__EXTEND[v_dc_symbol]; - break; - } - } - } - v_dc_value = ((uint16_t)(((v_bits >> 32u) >> (32u - v_dc_symbol)))); -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_dc_value += ((uint16_t)(v_dc_extend & ((uint16_t)(((uint16_t)(wuffs_base__utility__sign_extend_rshift_u64(v_bits, 63u))) ^ 65535u)))); -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - v_bits <<= v_dc_symbol; - v_n_bits -= v_dc_symbol; - v_csel = self->private_impl.f_scan_comps_cselector[self->private_impl.f_mcu_blocks_sselector[self->private_impl.f_mcu_current_block]]; -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - self->private_impl.f_mcu_previous_dc_values[v_csel] += v_dc_value; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - self->private_data.f_mcu_blocks[self->private_impl.f_mcu_current_block][0u] = ((uint16_t)(self->private_impl.f_mcu_previous_dc_values[v_csel] << self->private_impl.f_scan_al)); - } while (0); - self->private_impl.f_mcu_current_block += 1u; + v_n |= 256u; + break; } - self->private_impl.f_mcu_current_block = 0u; - } while (0); - label__goto_done__break:; - v_pos = ((uint32_t)(wuffs_base__u64__sat_add((v_r ? v_r->meta.pos : 0), ((uint64_t)(iop_v_r - io0_v_r))))); - if (v_pos > self->private_impl.f_bitstream_wi) { - v_ret = 2u; + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + } + if (v_c8 == 48u) { + v_n += 1u; + iop_a_src += 1u; } else { - self->private_impl.f_bitstream_ri = v_pos; + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + v_n = wuffs_json__decoder__decode_digits(self, a_src, v_n); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (v_n > 99u) { + break; + } + } + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if ( ! (a_src && a_src->meta.closed)) { + v_n |= 768u; + } + break; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + if (v_c8 != 46u) { + } else { + if (v_n >= 99u) { + v_n |= 512u; + break; + } + v_n += 1u; + iop_a_src += 1u; + v_floating_point = 128u; + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + v_n = wuffs_json__decoder__decode_digits(self, a_src, v_n); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (v_n > 99u) { + break; + } + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if ( ! (a_src && a_src->meta.closed)) { + v_n |= 768u; + } + break; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + } + if ((v_c8 != 69u) && (v_c8 != 101u)) { + break; + } + if (v_n >= 99u) { + v_n |= 512u; + break; + } + v_n += 1u; + iop_a_src += 1u; + v_floating_point = 128u; + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if ( ! (a_src && a_src->meta.closed)) { + v_n |= 768u; + } + v_n |= 256u; + break; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + if ((v_c8 != 43u) && (v_c8 != 45u)) { + } else { + if (v_n >= 99u) { + v_n |= 512u; + break; + } + v_n += 1u; + iop_a_src += 1u; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + v_n = wuffs_json__decoder__decode_digits(self, a_src, v_n); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } while (0); + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + return (v_n | v_floating_point); +} + +// -------- func json.decoder.decode_digits + +WUFFS_BASE__GENERATED_C_CODE +static uint32_t +wuffs_json__decoder__decode_digits( + wuffs_json__decoder* self, + wuffs_base__io_buffer* a_src, + uint32_t a_n) { + uint8_t v_c8 = 0; + uint32_t v_n = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + v_n = a_n; + while (true) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if ( ! (a_src && a_src->meta.closed)) { + v_n |= 768u; + } + break; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + if (0u == WUFFS_JSON__LUT_DECIMAL_DIGITS[v_c8]) { + break; + } + if (v_n >= 99u) { + v_n |= 512u; + break; } - v_r = o_0_v_r; - iop_v_r = o_0_iop_v_r; - io0_v_r = o_0_io0_v_r; - io1_v_r = o_0_io1_v_r; - io2_v_r = o_0_io2_v_r; + v_n += 1u; + iop_a_src += 1u; } - self->private_impl.f_bitstream_bits = v_bits; - self->private_impl.f_bitstream_n_bits = v_n_bits; - return v_ret; + if (v_n == a_n) { + v_n |= 256u; + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + return v_n; } -// -------- func jpeg.decoder.decode_mcu_progressive_dc_low_bit +// -------- func json.decoder.decode_leading WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_jpeg__decoder__decode_mcu_progressive_dc_low_bit( - wuffs_jpeg__decoder* self, - wuffs_base__slice_u8 a_workbuf, - uint32_t a_mx, - uint32_t a_my) { - uint32_t v_ret = 0; - uint64_t v_bits = 0; - uint32_t v_n_bits = 0; - uint16_t v_one_lshift_scan_al = 0; - wuffs_base__io_buffer u_r = wuffs_base__empty_io_buffer(); - wuffs_base__io_buffer* v_r = &u_r; - const uint8_t* iop_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io0_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_v_r WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint32_t v_pos = 0; +static wuffs_base__status +wuffs_json__decoder__decode_leading( + wuffs_json__decoder* self, + wuffs_base__token_buffer* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); - v_bits = self->private_impl.f_bitstream_bits; - v_n_bits = self->private_impl.f_bitstream_n_bits; - v_one_lshift_scan_al = ((uint16_t)(((uint16_t)(1u)) << self->private_impl.f_scan_al)); - if (self->private_impl.f_bitstream_ri > self->private_impl.f_bitstream_wi) { - return 2u; + uint8_t v_c8 = 0; + uint32_t v_u = 0; + + wuffs_base__token* iop_a_dst = NULL; + wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } } - { - wuffs_base__io_buffer* o_0_v_r = v_r; - const uint8_t *o_0_iop_v_r = iop_v_r; - const uint8_t *o_0_io0_v_r = io0_v_r; - const uint8_t *o_0_io1_v_r = io1_v_r; - const uint8_t *o_0_io2_v_r = io2_v_r; - v_r = wuffs_private_impl__io_reader__set( - &u_r, - &iop_v_r, - &io0_v_r, - &io1_v_r, - &io2_v_r, - wuffs_base__make_slice_u8_ij(self->private_data.f_bitstream_buffer, - self->private_impl.f_bitstream_ri, - self->private_impl.f_bitstream_wi), - ((uint64_t)(self->private_impl.f_bitstream_ri))); - do { - while (self->private_impl.f_mcu_current_block < self->private_impl.f_mcu_num_blocks) { - if (((uint64_t)(io2_v_r - iop_v_r)) < 264u) { - v_ret = 1u; - goto label__goto_done__break; + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_leading; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + self->private_impl.f_allow_leading_ars = self->private_impl.f_quirks[15u]; + self->private_impl.f_allow_leading_ubom = self->private_impl.f_quirks[16u]; + while (self->private_impl.f_allow_leading_ars || self->private_impl.f_allow_leading_ubom) { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + continue; + } + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if (a_src && a_src->meta.closed) { + break; } - do { - if (((uint64_t)(io2_v_r - iop_v_r)) < 8u) { - v_ret = 2u; - goto label__goto_done__break; - } - v_bits |= (wuffs_base__peek_u64be__no_bounds_check(iop_v_r) >> (v_n_bits & 63u)); - iop_v_r += ((63u - (v_n_bits & 63u)) >> 3u); - v_n_bits |= 56u; - if ((v_bits >> 63u) != 0u) { - self->private_data.f_mcu_blocks[self->private_impl.f_mcu_current_block][0u] |= v_one_lshift_scan_al; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + continue; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + if ((v_c8 == 30u) && self->private_impl.f_allow_leading_ars) { + self->private_impl.f_allow_leading_ars = false; + iop_a_src += 1u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + continue; + } else if ((v_c8 == 239u) && self->private_impl.f_allow_leading_ubom) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 3u) { + if (a_src && a_src->meta.closed) { + break; } - v_bits <<= 1u; - v_n_bits -= 1u; - } while (0); - self->private_impl.f_mcu_current_block += 1u; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); + continue; + } + v_u = ((uint32_t)(wuffs_base__peek_u24le__no_bounds_check(iop_a_src))); + if (v_u == 12565487u) { + self->private_impl.f_allow_leading_ubom = false; + iop_a_src += 3u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(3u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + continue; + } } - self->private_impl.f_mcu_current_block = 0u; - } while (0); - label__goto_done__break:; - v_pos = ((uint32_t)(wuffs_base__u64__sat_add((v_r ? v_r->meta.pos : 0), ((uint64_t)(iop_v_r - io0_v_r))))); - if (v_pos > self->private_impl.f_bitstream_wi) { - v_ret = 2u; - } else { - self->private_impl.f_bitstream_ri = v_pos; + break; } - v_r = o_0_v_r; - iop_v_r = o_0_iop_v_r; - io0_v_r = o_0_io0_v_r; - io1_v_r = o_0_io1_v_r; - io2_v_r = o_0_io2_v_r; + + ok: + self->private_impl.p_decode_leading = 0; + goto exit; } - self->private_impl.f_bitstream_bits = v_bits; - self->private_impl.f_bitstream_n_bits = v_n_bits; - return v_ret; + + goto suspend; + suspend: + self->private_impl.p_decode_leading = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; } -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__JPEG) +// -------- func json.decoder.decode_comment -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__JSON) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_json__decoder__decode_comment( + wuffs_json__decoder* self, + wuffs_base__token_buffer* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); -// ---------------- Status Codes Implementations + uint8_t v_c8 = 0; + uint16_t v_c16 = 0; + uint32_t v_length = 0; -const char wuffs_json__error__bad_c0_control_code[] = "#json: bad C0 control code"; -const char wuffs_json__error__bad_utf_8[] = "#json: bad UTF-8"; -const char wuffs_json__error__bad_backslash_escape[] = "#json: bad backslash-escape"; -const char wuffs_json__error__bad_input[] = "#json: bad input"; -const char wuffs_json__error__bad_new_line_in_a_string[] = "#json: bad new-line in a string"; -const char wuffs_json__error__bad_quirk_combination[] = "#json: bad quirk combination"; -const char wuffs_json__error__unsupported_number_length[] = "#json: unsupported number length"; -const char wuffs_json__error__unsupported_recursion_depth[] = "#json: unsupported recursion depth"; -const char wuffs_json__error__internal_error_inconsistent_i_o[] = "#json: internal error: inconsistent I/O"; + wuffs_base__token* iop_a_dst = NULL; + wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } -// ---------------- Private Consts + uint32_t coro_susp_point = self->private_impl.p_decode_comment; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; -#define WUFFS_JSON__DECODER_NUMBER_LENGTH_MAX_INCL 99u + self->private_impl.f_comment_type = 0u; + while ((((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) || (((uint64_t)(io2_a_src - iop_a_src)) <= 1u)) { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + continue; + } + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(NULL); + goto ok; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + } + v_c16 = wuffs_base__peek_u16le__no_bounds_check(iop_a_src); + if ((v_c16 == 10799u) && self->private_impl.f_quirks[11u]) { + iop_a_src += 2u; + v_length = 2u; + while (true) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 1u) { + if (v_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(v_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + } + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); + while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); + } + v_length = 0u; + continue; + } + v_c16 = wuffs_base__peek_u16le__no_bounds_check(iop_a_src); + if (v_c16 == 12074u) { + iop_a_src += 2u; + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)((v_length + 2u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + self->private_impl.f_comment_type = 1u; + status = wuffs_base__make_status(NULL); + goto ok; + } + iop_a_src += 1u; + if (v_length >= 65533u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)((v_length + 1u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); + } + v_length = 0u; + continue; + } + v_length += 1u; + } + } else if ((v_c16 == 12079u) && self->private_impl.f_quirks[12u]) { + iop_a_src += 2u; + v_length = 2u; + while (true) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if (a_src && a_src->meta.closed) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(v_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + self->private_impl.f_comment_type = 2u; + status = wuffs_base__make_status(NULL); + goto ok; + } else if (v_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)(v_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); + while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); + } + v_length = 0u; + continue; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + if (v_c8 == 10u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(v_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + self->private_impl.f_comment_type = 2u; + status = wuffs_base__make_status(NULL); + goto ok; + } + iop_a_src += 1u; + if (v_length >= 65533u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | + (((uint64_t)((v_length + 1u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); + } + v_length = 0u; + continue; + } + v_length += 1u; + } + } -static const uint8_t -WUFFS_JSON__LUT_BACKSLASHES[256] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 3u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 162u, 0u, 0u, 0u, 0u, 5u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 175u, - 7u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 4u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 220u, 0u, 0u, 0u, - 0u, 1u, 136u, 0u, 0u, 2u, 140u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 138u, 0u, - 0u, 0u, 141u, 0u, 137u, 0u, 6u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, -}; + ok: + self->private_impl.p_decode_comment = 0; + goto exit; + } -static const uint8_t -WUFFS_JSON__LUT_QUIRKY_BACKSLASHES_QUIRKS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0u, 1u, 3u, 4u, 5u, 6u, 7u, 10u, -}; + goto suspend; + suspend: + self->private_impl.p_decode_comment = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; -static const uint8_t -WUFFS_JSON__LUT_QUIRKY_BACKSLASHES_CHARS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0u, 7u, 27u, 10u, 63u, 39u, 11u, 0u, -}; + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } -static const uint8_t -WUFFS_JSON__LUT_CHARS[256] WUFFS_BASE__POTENTIALLY_UNUSED = { - 128u, 129u, 130u, 131u, 132u, 133u, 134u, 135u, - 136u, 137u, 138u, 139u, 140u, 141u, 142u, 143u, - 144u, 145u, 146u, 147u, 148u, 149u, 150u, 151u, - 152u, 153u, 154u, 155u, 156u, 157u, 158u, 159u, - 0u, 0u, 1u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 2u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, - 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, - 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, - 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, - 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, - 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, - 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, - 16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u, - 32u, 32u, 3u, 3u, 3u, 3u, 3u, 3u, - 3u, 3u, 3u, 3u, 3u, 3u, 3u, 3u, - 3u, 3u, 3u, 3u, 3u, 3u, 3u, 3u, - 3u, 3u, 3u, 3u, 3u, 3u, 3u, 3u, - 4u, 4u, 4u, 4u, 4u, 4u, 4u, 4u, - 4u, 4u, 4u, 4u, 4u, 4u, 4u, 4u, - 5u, 5u, 5u, 5u, 5u, 32u, 32u, 32u, - 32u, 32u, 32u, 32u, 32u, 32u, 32u, 32u, -}; + return status; +} -#define WUFFS_JSON__CLASS_WHITESPACE 0u +// -------- func json.decoder.decode_inf_nan + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_json__decoder__decode_inf_nan( + wuffs_json__decoder* self, + wuffs_base__token_buffer* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_c32 = 0; + uint32_t v_neg = 0; + + wuffs_base__token* iop_a_dst = NULL; + wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_inf_nan; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + continue; + } + if (((uint64_t)(io2_a_src - iop_a_src)) <= 2u) { + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + continue; + } + v_c32 = ((uint32_t)(wuffs_base__peek_u24le__no_bounds_check(iop_a_src))); + if ((v_c32 | 2105376u) == 6712937u) { + if (((uint64_t)(io2_a_src - iop_a_src)) > 7u) { + if ((wuffs_base__peek_u64le__no_bounds_check(iop_a_src) | 2314885530818453536u) == 8751735898823356009u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(10485792u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(8u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 8u; + status = wuffs_base__make_status(NULL); + goto ok; + } + } else if ( ! (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); + continue; + } + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(10485792u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(3u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 3u; + status = wuffs_base__make_status(NULL); + goto ok; + } else if ((v_c32 | 2105376u) == 7233902u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(10485888u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(3u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 3u; + status = wuffs_base__make_status(NULL); + goto ok; + } else if ((v_c32 & 255u) == 43u) { + v_neg = 0u; + } else if ((v_c32 & 255u) == 45u) { + v_neg = 1u; + } else { + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } + if (((uint64_t)(io2_a_src - iop_a_src)) <= 3u) { + if (a_src && a_src->meta.closed) { + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); + continue; + } + v_c32 = (wuffs_base__peek_u32le__no_bounds_check(iop_a_src) >> 8u); + if ((v_c32 | 2105376u) == 6712937u) { + if (((uint64_t)(io2_a_src - iop_a_src)) > 8u) { + if ((wuffs_base__peek_u64le__no_bounds_check(iop_a_src + 1u) | 2314885530818453536u) == 8751735898823356009u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((10485760u | (((uint32_t)(32u)) >> v_neg)))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(9u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 9u; + status = wuffs_base__make_status(NULL); + goto ok; + } + } else if ( ! (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); + continue; + } + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((10485760u | (((uint32_t)(32u)) >> v_neg)))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 4u; + status = wuffs_base__make_status(NULL); + goto ok; + } else if ((v_c32 | 2105376u) == 7233902u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)((10485760u | (((uint32_t)(128u)) >> v_neg)))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + iop_a_src += 4u; + status = wuffs_base__make_status(NULL); + goto ok; + } + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } -#define WUFFS_JSON__CLASS_STRING 1u + ok: + self->private_impl.p_decode_inf_nan = 0; + goto exit; + } -#define WUFFS_JSON__CLASS_COMMA 2u + goto suspend; + suspend: + self->private_impl.p_decode_inf_nan = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; -#define WUFFS_JSON__CLASS_COLON 3u + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } -#define WUFFS_JSON__CLASS_NUMBER 4u + return status; +} -#define WUFFS_JSON__CLASS_OPEN_CURLY_BRACE 5u +// -------- func json.decoder.decode_trailer -#define WUFFS_JSON__CLASS_CLOSE_CURLY_BRACE 6u +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_json__decoder__decode_trailer( + wuffs_json__decoder* self, + wuffs_base__token_buffer* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); -#define WUFFS_JSON__CLASS_OPEN_SQUARE_BRACKET 7u + uint8_t v_c8 = 0; + uint32_t v_whitespace_length = 0; -#define WUFFS_JSON__CLASS_CLOSE_SQUARE_BRACKET 8u + wuffs_base__token* iop_a_dst = NULL; + wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } -#define WUFFS_JSON__CLASS_FALSE 9u + uint32_t coro_susp_point = self->private_impl.p_decode_trailer; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; -#define WUFFS_JSON__CLASS_TRUE 10u + if (self->private_impl.f_quirks[18u]) { + self->private_impl.f_trailer_stop = 10u; + } else { + self->private_impl.f_trailer_stop = 0u; + } + label__outer__continue:; + while (true) { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + continue; + } + v_whitespace_length = 0u; + while (true) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if (v_whitespace_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(v_whitespace_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + } + if (a_src && a_src->meta.closed) { + goto label__outer__break; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + goto label__outer__continue; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + if (WUFFS_JSON__LUT_CLASSES[v_c8] != 0u) { + if (v_whitespace_length > 0u) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)(v_whitespace_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + } + if (self->private_impl.f_trailer_stop > 0u) { + status = wuffs_base__make_status(wuffs_json__error__bad_input); + goto exit; + } + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + status = wuffs_json__decoder__decode_comment(self, a_dst, a_src); + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + if (self->private_impl.f_comment_type > 0u) { + goto label__outer__continue; + } + status = wuffs_base__make_status(NULL); + goto ok; + } + iop_a_src += 1u; + if ((v_whitespace_length >= 65534u) || (v_c8 == self->private_impl.f_trailer_stop)) { + *iop_a_dst++ = wuffs_base__make_token( + (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | + (((uint64_t)((v_whitespace_length + 1u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + if (v_c8 == self->private_impl.f_trailer_stop) { + status = wuffs_base__make_status(NULL); + goto ok; + } + goto label__outer__continue; + } + v_whitespace_length += 1u; + } + } + label__outer__break:; -#define WUFFS_JSON__CLASS_NULL_NAN_INF 11u + ok: + self->private_impl.p_decode_trailer = 0; + goto exit; + } -#define WUFFS_JSON__CLASS_COMMENT 12u + goto suspend; + suspend: + self->private_impl.p_decode_trailer = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; -#define WUFFS_JSON__EXPECT_VALUE 7858u + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } -#define WUFFS_JSON__EXPECT_NON_STRING_VALUE 7856u + return status; +} -#define WUFFS_JSON__EXPECT_STRING 4098u +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__JSON) -#define WUFFS_JSON__EXPECT_COMMA 4100u +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZMA) -#define WUFFS_JSON__EXPECT_COLON 4104u +// ---------------- Status Codes Implementations -#define WUFFS_JSON__EXPECT_NUMBER 4112u +const char wuffs_lzma__error__bad_lzma2_header[] = "#lzma: bad LZMA2 header"; +const char wuffs_lzma__error__bad_bitstream_trailer[] = "#lzma: bad bitstream trailer"; +const char wuffs_lzma__error__bad_code[] = "#lzma: bad code"; +const char wuffs_lzma__error__bad_decoded_length[] = "#lzma: bad decoded length"; +const char wuffs_lzma__error__bad_distance[] = "#lzma: bad distance"; +const char wuffs_lzma__error__bad_header[] = "#lzma: bad header"; +const char wuffs_lzma__error__truncated_input[] = "#lzma: truncated input"; +const char wuffs_lzma__error__unsupported_decoded_length[] = "#lzma: unsupported decoded length"; +const char wuffs_lzma__error__unsupported_properties[] = "#lzma: unsupported properties"; +const char wuffs_lzma__error__internal_error_inconsistent_i_o[] = "#lzma: internal error: inconsistent I/O"; +const char wuffs_lzma__error__internal_error_inconsistent_dictionary_state[] = "#lzma: internal error: inconsistent dictionary state"; -#define WUFFS_JSON__EXPECT_CLOSE_CURLY_BRACE 4160u +// ---------------- Private Consts -#define WUFFS_JSON__EXPECT_CLOSE_SQUARE_BRACKET 4352u +static const uint8_t +WUFFS_LZMA__STATE_TRANSITION_LITERAL[12] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 0u, 0u, 0u, 1u, 2u, 3u, 4u, + 5u, 6u, 4u, 5u, +}; static const uint8_t -WUFFS_JSON__LUT_CLASSES[256] WUFFS_BASE__POTENTIALLY_UNUSED = { - 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, - 15u, 0u, 0u, 15u, 15u, 0u, 15u, 15u, - 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, - 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, - 0u, 15u, 1u, 15u, 15u, 15u, 15u, 15u, - 15u, 15u, 15u, 11u, 2u, 4u, 15u, 12u, - 4u, 4u, 4u, 4u, 4u, 4u, 4u, 4u, - 4u, 4u, 3u, 15u, 15u, 15u, 15u, 15u, - 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, - 15u, 11u, 15u, 15u, 15u, 15u, 11u, 15u, - 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, - 15u, 15u, 15u, 7u, 15u, 8u, 15u, 15u, - 15u, 15u, 15u, 15u, 15u, 15u, 9u, 15u, - 15u, 11u, 15u, 15u, 15u, 15u, 11u, 15u, - 15u, 15u, 15u, 15u, 10u, 15u, 15u, 15u, - 15u, 15u, 15u, 5u, 15u, 6u, 15u, 15u, - 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, - 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, - 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, - 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, - 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, - 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, - 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, - 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, - 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, - 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, - 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, - 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, - 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, - 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, - 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, - 15u, 15u, 15u, 15u, 15u, 15u, 15u, 15u, +WUFFS_LZMA__STATE_TRANSITION_MATCH[12] WUFFS_BASE__POTENTIALLY_UNUSED = { + 7u, 7u, 7u, 7u, 7u, 7u, 7u, 10u, + 10u, 10u, 10u, 10u, }; static const uint8_t -WUFFS_JSON__LUT_DECIMAL_DIGITS[256] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 128u, 129u, 130u, 131u, 132u, 133u, 134u, 135u, - 136u, 137u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, +WUFFS_LZMA__STATE_TRANSITION_LONGREP[12] WUFFS_BASE__POTENTIALLY_UNUSED = { + 8u, 8u, 8u, 8u, 8u, 8u, 8u, 11u, + 11u, 11u, 11u, 11u, }; static const uint8_t -WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[256] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 128u, 129u, 130u, 131u, 132u, 133u, 134u, 135u, - 136u, 137u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 138u, 139u, 140u, 141u, 142u, 143u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 138u, 139u, 140u, 141u, 142u, 143u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, +WUFFS_LZMA__STATE_TRANSITION_SHORTREP[12] WUFFS_BASE__POTENTIALLY_UNUSED = { + 9u, 9u, 9u, 9u, 9u, 9u, 9u, 11u, + 11u, 11u, 11u, 11u, }; -#define WUFFS_JSON__QUIRKS_BASE 1225364480u +static const uint8_t +WUFFS_LZMA__CLAMP_NO_MORE_THAN_3[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 1u, 2u, 3u, 3u, 3u, 3u, 3u, +}; -#define WUFFS_JSON__QUIRKS_COUNT 21u +#define WUFFS_LZMA__QUIRKS_BASE 1290294272u // ---------------- Private Initializer Prototypes // ---------------- Private Function Prototypes WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_json__decoder__decode_number( - wuffs_json__decoder* self, - wuffs_base__io_buffer* a_src); +static wuffs_base__status +wuffs_lzma__decoder__decode_bitstream_fast( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_json__decoder__decode_digits( - wuffs_json__decoder* self, +static wuffs_base__status +wuffs_lzma__decoder__decode_bitstream_slow( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_dst, wuffs_base__io_buffer* a_src, - uint32_t a_n); + wuffs_base__slice_u8 a_workbuf); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_json__decoder__decode_leading( - wuffs_json__decoder* self, - wuffs_base__token_buffer* a_dst, - wuffs_base__io_buffer* a_src); +wuffs_lzma__decoder__add_history( + wuffs_lzma__decoder* self, + wuffs_base__slice_u8 a_hist, + wuffs_base__slice_u8 a_workbuf); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_json__decoder__decode_comment( - wuffs_json__decoder* self, - wuffs_base__token_buffer* a_dst, - wuffs_base__io_buffer* a_src); +wuffs_lzma__decoder__do_transform_io( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_json__decoder__decode_inf_nan( - wuffs_json__decoder* self, - wuffs_base__token_buffer* a_dst, - wuffs_base__io_buffer* a_src); +wuffs_lzma__decoder__decode_bitstream( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_json__decoder__decode_trailer( - wuffs_json__decoder* self, - wuffs_base__token_buffer* a_dst, - wuffs_base__io_buffer* a_src); +wuffs_lzma__decoder__update_stashed_bytes( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzma__decoder__decode_optional_end_of_stream( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_lzma__decoder__initialize_dict( + wuffs_lzma__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_lzma__decoder__initialize_probs( + wuffs_lzma__decoder* self); // ---------------- VTables -const wuffs_base__token_decoder__func_ptrs -wuffs_json__decoder__func_ptrs_for__wuffs_base__token_decoder = { - (wuffs_base__status(*)(void*, - wuffs_base__token_buffer*, - wuffs_base__io_buffer*, - wuffs_base__slice_u8))(&wuffs_json__decoder__decode_tokens), +const wuffs_base__io_transformer__func_ptrs +wuffs_lzma__decoder__func_ptrs_for__wuffs_base__io_transformer = { + (wuffs_base__optional_u63(*)(const void*))(&wuffs_lzma__decoder__dst_history_retain_length), (uint64_t(*)(const void*, - uint32_t))(&wuffs_json__decoder__get_quirk), + uint32_t))(&wuffs_lzma__decoder__get_quirk), (wuffs_base__status(*)(void*, uint32_t, - uint64_t))(&wuffs_json__decoder__set_quirk), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_json__decoder__workbuf_len), + uint64_t))(&wuffs_lzma__decoder__set_quirk), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__io_buffer*, + wuffs_base__slice_u8))(&wuffs_lzma__decoder__transform_io), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_lzma__decoder__workbuf_len), }; // ---------------- Initializer Implementations -wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_json__decoder__initialize( - wuffs_json__decoder* self, - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options){ - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (sizeof(*self) != sizeof_star_self) { - return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_lzma__decoder__initialize( + wuffs_lzma__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } + } + + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = + wuffs_base__io_transformer__vtable_name; + self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = + (const void*)(&wuffs_lzma__decoder__func_ptrs_for__wuffs_base__io_transformer); + return wuffs_base__make_status(NULL); +} + +wuffs_lzma__decoder* +wuffs_lzma__decoder__alloc(void) { + wuffs_lzma__decoder* x = + (wuffs_lzma__decoder*)(calloc(1, sizeof(wuffs_lzma__decoder))); + if (!x) { + return NULL; + } + if (wuffs_lzma__decoder__initialize( + x, sizeof(wuffs_lzma__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_lzma__decoder(void) { + return sizeof(wuffs_lzma__decoder); +} + +// ---------------- Function Implementations + +// -------- func lzma.decoder.decode_bitstream_fast + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzma__decoder__decode_bitstream_fast( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint32_t v_bits = 0; + uint32_t v_range = 0; + uint32_t v_state = 0; + uint32_t v_rep0 = 0; + uint32_t v_rep1 = 0; + uint32_t v_rep2 = 0; + uint32_t v_rep3 = 0; + uint32_t v_reptmp = 0; + uint32_t v_rep = 0; + uint64_t v_pos = 0; + uint64_t v_pos_end = 0; + uint32_t v_lc = 0; + uint64_t v_lp_mask = 0; + uint64_t v_pb_mask = 0; + uint32_t v_prob = 0; + uint32_t v_threshold = 0; + uint32_t v_tree_node = 0; + uint8_t v_prev_byte = 0; + uint32_t v_match_byte = 0; + uint32_t v_match_cusp = 0; + uint32_t v_len_state = 0; + uint32_t v_slot = 0; + uint32_t v_len = 0; + uint32_t v_lanl_offset = 0; + uint32_t v_lanl_old_offset = 0; + uint32_t v_lanl_index = 0; + uint32_t v_num_extra_bits = 0; + uint32_t v_dist_extra_bits = 0; + uint32_t v_high_bit_was_on = 0; + uint32_t v_i = 0; + uint32_t v_index_ao00 = 0; + uint32_t v_index_ao41 = 0; + uint32_t v_index_lit = 0; + uint32_t v_index_len = 0; + uint32_t v_index_small_dist_base = 0; + uint32_t v_index_small_dist_extra = 0; + uint32_t v_index_small_dist = 0; + uint32_t v_index_large_dist = 0; + uint32_t v_dist = 0; + uint32_t v_adj_dist = 0; + uint64_t v_wb_index = 0; + + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } } - if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || - (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { - return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { - // The whole point of this if-check is to detect an uninitialized *self. - // We disable the warning on GCC. Clang-5.0 does not have this warning. -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" -#endif - if (self->private_impl.magic != 0) { - return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + v_prev_byte = self->private_impl.f_stashed_bytes[0u]; + v_match_byte = ((uint32_t)(self->private_impl.f_stashed_bytes[1u])); + v_bits = self->private_impl.f_stashed_bits; + v_range = self->private_impl.f_stashed_range; + v_state = self->private_impl.f_stashed_state; + v_rep0 = self->private_impl.f_stashed_rep0; + v_rep1 = self->private_impl.f_stashed_rep1; + v_rep2 = self->private_impl.f_stashed_rep2; + v_rep3 = self->private_impl.f_stashed_rep3; + v_pos = self->private_impl.f_stashed_pos; + v_pos_end = self->private_impl.f_stashed_pos_end; + v_lc = self->private_impl.f_lc; + v_lp_mask = ((((uint64_t)(1u)) << self->private_impl.f_lp) - 1u); + v_pb_mask = ((((uint64_t)(1u)) << self->private_impl.f_pb) - 1u); + while ((((uint64_t)(io2_a_dst - iop_a_dst)) >= 282u) && (((uint64_t)(io2_a_src - iop_a_src)) >= 48u)) { + if (v_pos >= v_pos_end) { + self->private_impl.f_end_of_chunk = true; + break; } -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } else { - if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { - memset(self, 0, sizeof(*self)); - options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + v_index_ao00 = ((v_state << 4u) | ((uint32_t)((v_pos & v_pb_mask)))); + v_prob = ((uint32_t)(self->private_data.f_probs_ao00[v_index_ao00])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao00[v_index_ao00] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_index_lit = (15u & ((((uint32_t)((v_pos & v_lp_mask))) << v_lc) | (((uint32_t)(v_prev_byte)) >> (8u - v_lc)))); + v_lanl_offset = 0u; + if (v_state >= 7u) { + v_lanl_offset = 256u; + } + v_tree_node = 1u; + while (v_tree_node < 256u) { + v_match_byte <<= 1u; + v_lanl_old_offset = v_lanl_offset; + v_lanl_offset &= v_match_byte; + v_lanl_index = (v_lanl_offset + v_lanl_old_offset + v_tree_node); + v_prob = ((uint32_t)(self->private_data.f_probs_lit[v_index_lit][v_lanl_index])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_lanl_offset = ((v_lanl_offset ^ v_lanl_old_offset) & 256u); + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_lit[v_index_lit][v_lanl_index] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_lit[v_index_lit][v_lanl_index] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_prev_byte = ((uint8_t)(v_tree_node)); + (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, v_prev_byte), iop_a_dst += 1); + v_pos += 1u; + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_LITERAL[v_state])); + continue; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao00[v_index_ao00] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; } else { - memset(&(self->private_impl), 0, sizeof(self->private_impl)); } - } - - self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__token_decoder.vtable_name = - wuffs_base__token_decoder__vtable_name; - self->private_impl.vtable_for__wuffs_base__token_decoder.function_pointers = - (const void*)(&wuffs_json__decoder__func_ptrs_for__wuffs_base__token_decoder); - return wuffs_base__make_status(NULL); -} - -wuffs_json__decoder* -wuffs_json__decoder__alloc(void) { - wuffs_json__decoder* x = - (wuffs_json__decoder*)(calloc(sizeof(wuffs_json__decoder), 1)); - if (!x) { - return NULL; - } - if (wuffs_json__decoder__initialize( - x, sizeof(wuffs_json__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; - } - return x; -} - -size_t -sizeof__wuffs_json__decoder(void) { - return sizeof(wuffs_json__decoder); -} - -// ---------------- Function Implementations - -// -------- func json.decoder.get_quirk - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_json__decoder__get_quirk( - const wuffs_json__decoder* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - uint32_t v_key = 0; - - if (a_key >= 1225364480u) { - v_key = (a_key - 1225364480u); - if (v_key < 21u) { - if (self->private_impl.f_quirks[v_key]) { - return 1u; + do { + v_prob = ((uint32_t)(self->private_data.f_probs_ao20[v_state])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao20[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } else { + } + do { + v_prob = ((uint32_t)(self->private_data.f_probs_match_len_low[0u][0u])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_match_len_low[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_index_len = ((uint32_t)((v_pos & v_pb_mask))); + v_tree_node = 1u; + while (v_tree_node < 8u) { + v_prob = ((uint32_t)(self->private_data.f_probs_match_len_low[v_index_len][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_match_len_low[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_match_len_low[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_len_state = ((uint32_t)(WUFFS_LZMA__CLAMP_NO_MORE_THAN_3[(v_tree_node & 7u)])); + v_len = ((v_tree_node & 7u) + 2u); + break; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_match_len_low[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_prob = ((uint32_t)(self->private_data.f_probs_match_len_mid[0u][0u])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_match_len_mid[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_index_len = ((uint32_t)((v_pos & v_pb_mask))); + v_tree_node = 1u; + while (v_tree_node < 8u) { + v_prob = ((uint32_t)(self->private_data.f_probs_match_len_mid[v_index_len][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_match_len_mid[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_match_len_mid[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_len = ((v_tree_node & 7u) + 10u); + v_len_state = 3u; + break; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_match_len_mid[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_tree_node = 1u; + while (v_tree_node < 256u) { + v_prob = ((uint32_t)(self->private_data.f_probs_match_len_high[0u][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_match_len_high[0u][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_match_len_high[0u][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_len = ((v_tree_node & 255u) + 18u); + v_len_state = 3u; + } while (0); + v_slot = 1u; + while (v_slot < 64u) { + v_prob = ((uint32_t)(self->private_data.f_probs_slot[v_len_state][v_slot])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_slot[v_len_state][v_slot] = ((uint16_t)(v_prob)); + v_slot = (v_slot << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_slot[v_len_state][v_slot] = ((uint16_t)(v_prob)); + v_slot = ((v_slot << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_slot &= 63u; + v_rep = v_slot; + if (v_slot < 4u) { + } else if (v_slot < 14u) { + v_num_extra_bits = ((v_slot >> 1u) - 1u); + v_rep = ((2u | (v_slot & 1u)) << v_num_extra_bits); + v_index_small_dist_base = ((uint32_t)(v_rep - v_slot)); + v_index_small_dist_extra = 1u; + v_dist_extra_bits = 0u; + v_i = 0u; + while (v_i < v_num_extra_bits) { + v_index_small_dist = (((uint32_t)(v_index_small_dist_base + v_index_small_dist_extra)) & 127u); + v_prob = ((uint32_t)(self->private_data.f_probs_small_dist[v_index_small_dist])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_small_dist[v_index_small_dist] = ((uint16_t)(v_prob)); + v_index_small_dist_extra = ((uint32_t)(v_index_small_dist_extra << 1u)); + v_i += 1u; + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_small_dist[v_index_small_dist] = ((uint16_t)(v_prob)); + v_index_small_dist_extra = (((uint32_t)(v_index_small_dist_extra << 1u)) | 1u); + v_dist_extra_bits |= (((uint32_t)(1u)) << v_i); + v_i += 1u; + } + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_rep += v_dist_extra_bits; + } else { + v_num_extra_bits = ((v_slot >> 1u) - 1u); + v_rep = ((2u | (v_slot & 1u)) << v_num_extra_bits); + v_dist_extra_bits = 0u; + while (true) { + v_range >>= 1u; + v_bits -= v_range; + v_high_bit_was_on = ((uint32_t)(0u - (v_bits >> 31u))); + v_bits += (v_range & v_high_bit_was_on); + v_dist_extra_bits = (((uint32_t)(v_dist_extra_bits << 1u)) | (((uint32_t)(v_high_bit_was_on + 1u)) & 1u)); + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_num_extra_bits -= 1u; + if (v_num_extra_bits <= 4u) { + break; + } + } + v_dist_extra_bits <<= 4u; + v_index_large_dist = 1u; + while (true) { + v_prob = ((uint32_t)(self->private_data.f_probs_large_dist[v_index_large_dist])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_large_dist[v_index_large_dist] = ((uint16_t)(v_prob)); + v_index_large_dist = (15u & ((uint32_t)(v_index_large_dist << 1u))); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_large_dist[v_index_large_dist] = ((uint16_t)(v_prob)); + v_index_large_dist = (15u & (((uint32_t)(v_index_large_dist << 1u)) | 1u)); + v_dist_extra_bits |= (((uint32_t)(1u)) << (4u - v_num_extra_bits)); + } + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_num_extra_bits -= 1u; + if (v_num_extra_bits <= 0u) { + break; + } + } + v_rep += v_dist_extra_bits; + } + if (v_rep >= 4294967295u) { + self->private_impl.f_end_of_chunk = true; + goto label__outer__break; + } + v_rep3 = v_rep2; + v_rep2 = v_rep1; + v_rep1 = v_rep0; + v_rep0 = v_rep; + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_MATCH[v_state])); + break; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao20[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } else { + } + v_prob = ((uint32_t)(self->private_data.f_probs_ao40[v_state])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao40[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } else { + } + v_index_ao41 = ((v_state << 4u) | ((uint32_t)((v_pos & v_pb_mask)))); + v_prob = ((uint32_t)(self->private_data.f_probs_ao41[v_index_ao41])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao41[v_index_ao41] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_len = 1u; + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_SHORTREP[v_state])); + break; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao41[v_index_ao41] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao40[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } else { + } + v_prob = ((uint32_t)(self->private_data.f_probs_ao60[v_state])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao60[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_reptmp = v_rep1; + v_rep1 = v_rep0; + v_rep0 = v_reptmp; + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao60[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } else { + } + v_prob = ((uint32_t)(self->private_data.f_probs_ao63[v_state])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao63[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_reptmp = v_rep2; + v_rep2 = v_rep1; + v_rep1 = v_rep0; + v_rep0 = v_reptmp; + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao63[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_reptmp = v_rep3; + v_rep3 = v_rep2; + v_rep2 = v_rep1; + v_rep1 = v_rep0; + v_rep0 = v_reptmp; + } + } + } + do { + v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_low[0u][0u])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_longrep_len_low[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_index_len = ((uint32_t)((v_pos & v_pb_mask))); + v_tree_node = 1u; + while (v_tree_node < 8u) { + v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_low[v_index_len][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_longrep_len_low[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_longrep_len_low[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_len = ((v_tree_node & 7u) + 2u); + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_LONGREP[v_state])); + break; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_longrep_len_low[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_mid[0u][0u])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_longrep_len_mid[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_index_len = ((uint32_t)((v_pos & v_pb_mask))); + v_tree_node = 1u; + while (v_tree_node < 8u) { + v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_mid[v_index_len][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_longrep_len_mid[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_longrep_len_mid[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_len = ((v_tree_node & 7u) + 10u); + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_LONGREP[v_state])); + break; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_longrep_len_mid[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_tree_node = 1u; + while (v_tree_node < 256u) { + v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_high[0u][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_longrep_len_high[0u][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_longrep_len_high[0u][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_i_o); + goto exit; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_len = ((v_tree_node & 255u) + 18u); + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_LONGREP[v_state])); + } while (0); + } while (0); + v_dist = (v_rep0 + 1u); + if ((((uint64_t)(v_dist)) > v_pos) || (((uint64_t)(v_dist)) > ((uint64_t)(self->private_impl.f_dict_size)))) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_distance); + goto exit; + } + v_pos += ((uint64_t)(v_len)); + if (((uint64_t)(v_dist)) > ((uint64_t)(iop_a_dst - io0_a_dst))) { + v_adj_dist = ((uint32_t)((((uint64_t)(v_dist)) - ((uint64_t)(iop_a_dst - io0_a_dst))))); + if (v_adj_dist > self->private_impl.f_dict_seen) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_distance); + goto exit; + } + v_wb_index = ((uint64_t)(((uint64_t)(self->private_impl.f_dict_workbuf_index)) - ((uint64_t)(v_adj_dist)))); + while (v_wb_index >= 9223372036854775808u) { + v_wb_index += ((uint64_t)(self->private_impl.f_dict_size)); + } + if (v_wb_index >= ((uint64_t)(a_workbuf.len))) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + if (v_len < v_adj_dist) { + wuffs_private_impl__io_writer__limited_copy_u32_from_slice( + &iop_a_dst, io2_a_dst,(v_len + 1u), wuffs_base__slice_u8__subslice_i(a_workbuf, v_wb_index)); + if ( ! (iop_a_dst > io1_a_dst)) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + v_match_byte = ((uint32_t)(iop_a_dst[-1])); + iop_a_dst--; + if ( ! (iop_a_dst > io1_a_dst)) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + v_prev_byte = iop_a_dst[-1]; + continue; + } else if (v_len == v_adj_dist) { + wuffs_private_impl__io_writer__limited_copy_u32_from_slice( + &iop_a_dst, io2_a_dst,v_len, wuffs_base__slice_u8__subslice_i(a_workbuf, v_wb_index)); + wuffs_private_impl__io_writer__limited_copy_u32_from_history( + &iop_a_dst, io0_a_dst, io2_a_dst, 1u, v_dist); + if ( ! (iop_a_dst > io1_a_dst)) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + v_match_byte = ((uint32_t)(iop_a_dst[-1])); + iop_a_dst--; + if ( ! (iop_a_dst > io1_a_dst)) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + v_prev_byte = iop_a_dst[-1]; + continue; + } + wuffs_private_impl__io_writer__limited_copy_u32_from_slice( + &iop_a_dst, io2_a_dst,v_adj_dist, wuffs_base__slice_u8__subslice_i(a_workbuf, v_wb_index)); + v_len -= v_adj_dist; + if ((((uint64_t)(v_len)) > ((uint64_t)(io2_a_dst - iop_a_dst))) || (((uint64_t)((v_len + 8u))) > ((uint64_t)(io2_a_dst - iop_a_dst))) || (((uint64_t)(v_dist)) > ((uint64_t)(iop_a_dst - io0_a_dst)))) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; } } - } - return 0u; -} - -// -------- func json.decoder.set_quirk - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_json__decoder__set_quirk( - wuffs_json__decoder* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - - if (a_key >= 1225364480u) { - a_key -= 1225364480u; - if (a_key < 21u) { - self->private_impl.f_quirks[a_key] = (a_value > 0u); - return wuffs_base__make_status(NULL); + if (v_dist >= 8u) { + v_match_cusp = wuffs_private_impl__io_writer__limited_copy_u32_from_history_8_byte_chunks_fast_return_cusp( + &iop_a_dst, io0_a_dst, io2_a_dst, v_len, v_dist); + v_match_byte = (v_match_cusp >> 8u); + v_prev_byte = ((uint8_t)(v_match_cusp)); + } else { + v_match_cusp = wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast_return_cusp( + &iop_a_dst, io0_a_dst, io2_a_dst, v_len, v_dist); + v_match_byte = (v_match_cusp >> 8u); + v_prev_byte = ((uint8_t)(v_match_cusp)); } } - return wuffs_base__make_status(wuffs_base__error__unsupported_option); -} - -// -------- func json.decoder.workbuf_len - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_json__decoder__workbuf_len( - const wuffs_json__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); + label__outer__break:; + self->private_impl.f_stashed_bytes[0u] = v_prev_byte; + self->private_impl.f_stashed_bytes[1u] = ((uint8_t)(v_match_byte)); + self->private_impl.f_stashed_bits = v_bits; + self->private_impl.f_stashed_range = v_range; + self->private_impl.f_stashed_state = v_state; + self->private_impl.f_stashed_rep0 = v_rep0; + self->private_impl.f_stashed_rep1 = v_rep1; + self->private_impl.f_stashed_rep2 = v_rep2; + self->private_impl.f_stashed_rep3 = v_rep3; + self->private_impl.f_stashed_pos = v_pos; + self->private_impl.f_stashed_pos_end = v_pos_end; + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - return wuffs_base__utility__empty_range_ii_u64(); + return status; } -// -------- func json.decoder.decode_tokens +// -------- func lzma.decoder.decode_bitstream_slow WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_json__decoder__decode_tokens( - wuffs_json__decoder* self, - wuffs_base__token_buffer* a_dst, +static wuffs_base__status +wuffs_lzma__decoder__decode_bitstream_slow( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_dst, wuffs_base__io_buffer* a_src, wuffs_base__slice_u8 a_workbuf) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 1)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t v_vminor = 0; - uint32_t v_number_length = 0; - uint32_t v_number_status = 0; - uint32_t v_string_length = 0; - uint32_t v_whitespace_length = 0; - uint32_t v_depth = 0; - uint32_t v_stack_byte = 0; - uint32_t v_stack_bit = 0; - uint32_t v_match = 0; - uint32_t v_c4 = 0; - uint8_t v_c = 0; - uint8_t v_backslash = 0; - uint8_t v_char = 0; - uint8_t v_class = 0; - uint32_t v_multi_byte_utf8 = 0; - uint8_t v_backslash_x_ok = 0; - uint8_t v_backslash_x_value = 0; - uint32_t v_backslash_x_string = 0; - uint8_t v_uni4_ok = 0; - uint64_t v_uni4_string = 0; - uint32_t v_uni4_value = 0; - uint32_t v_uni4_high_surrogate = 0; - uint8_t v_uni8_ok = 0; - uint64_t v_uni8_string = 0; - uint32_t v_uni8_value = 0; - uint32_t v_expect = 0; - uint32_t v_expect_after_value = 0; + uint8_t v_c8 = 0; + uint32_t v_bits = 0; + uint32_t v_range = 0; + uint32_t v_state = 0; + uint32_t v_rep0 = 0; + uint32_t v_rep1 = 0; + uint32_t v_rep2 = 0; + uint32_t v_rep3 = 0; + uint32_t v_reptmp = 0; + uint32_t v_rep = 0; + uint64_t v_pos = 0; + uint64_t v_pos_end = 0; + uint32_t v_lc = 0; + uint64_t v_lp_mask = 0; + uint64_t v_pb_mask = 0; + uint32_t v_prob = 0; + uint32_t v_threshold = 0; + uint32_t v_tree_node = 0; + uint8_t v_prev_byte = 0; + uint32_t v_match_byte = 0; + uint32_t v_match_cusp = 0; + uint32_t v_len_state = 0; + uint32_t v_slot = 0; + uint32_t v_len = 0; + uint32_t v_lanl_offset = 0; + uint32_t v_lanl_old_offset = 0; + uint32_t v_lanl_index = 0; + uint32_t v_num_extra_bits = 0; + uint32_t v_dist_extra_bits = 0; + uint32_t v_high_bit_was_on = 0; + uint32_t v_i = 0; + uint32_t v_index_ao00 = 0; + uint32_t v_index_ao41 = 0; + uint32_t v_index_lit = 0; + uint32_t v_index_len = 0; + uint32_t v_index_small_dist_base = 0; + uint32_t v_index_small_dist_extra = 0; + uint32_t v_index_small_dist = 0; + uint32_t v_index_large_dist = 0; + uint32_t v_dist = 0; + uint32_t v_adj_dist = 0; + uint64_t v_wb_index = 0; - wuffs_base__token* iop_a_dst = NULL; - wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; if (a_dst && a_dst->data.ptr) { io0_a_dst = a_dst->data.ptr; io1_a_dst = io0_a_dst + a_dst->meta.wi; @@ -49139,1245 +58267,2445 @@ wuffs_json__decoder__decode_tokens( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_tokens; + uint32_t coro_susp_point = self->private_impl.p_decode_bitstream_slow; if (coro_susp_point) { - v_depth = self->private_data.s_decode_tokens.v_depth; - v_expect = self->private_data.s_decode_tokens.v_expect; - v_expect_after_value = self->private_data.s_decode_tokens.v_expect_after_value; + v_bits = self->private_data.s_decode_bitstream_slow.v_bits; + v_range = self->private_data.s_decode_bitstream_slow.v_range; + v_state = self->private_data.s_decode_bitstream_slow.v_state; + v_rep0 = self->private_data.s_decode_bitstream_slow.v_rep0; + v_rep1 = self->private_data.s_decode_bitstream_slow.v_rep1; + v_rep2 = self->private_data.s_decode_bitstream_slow.v_rep2; + v_rep3 = self->private_data.s_decode_bitstream_slow.v_rep3; + v_rep = self->private_data.s_decode_bitstream_slow.v_rep; + v_pos = self->private_data.s_decode_bitstream_slow.v_pos; + v_pos_end = self->private_data.s_decode_bitstream_slow.v_pos_end; + v_lc = self->private_data.s_decode_bitstream_slow.v_lc; + v_lp_mask = self->private_data.s_decode_bitstream_slow.v_lp_mask; + v_pb_mask = self->private_data.s_decode_bitstream_slow.v_pb_mask; + v_tree_node = self->private_data.s_decode_bitstream_slow.v_tree_node; + v_prev_byte = self->private_data.s_decode_bitstream_slow.v_prev_byte; + v_match_byte = self->private_data.s_decode_bitstream_slow.v_match_byte; + v_len_state = self->private_data.s_decode_bitstream_slow.v_len_state; + v_slot = self->private_data.s_decode_bitstream_slow.v_slot; + v_len = self->private_data.s_decode_bitstream_slow.v_len; + v_lanl_offset = self->private_data.s_decode_bitstream_slow.v_lanl_offset; + v_num_extra_bits = self->private_data.s_decode_bitstream_slow.v_num_extra_bits; + v_dist_extra_bits = self->private_data.s_decode_bitstream_slow.v_dist_extra_bits; + v_i = self->private_data.s_decode_bitstream_slow.v_i; + v_index_lit = self->private_data.s_decode_bitstream_slow.v_index_lit; + v_index_len = self->private_data.s_decode_bitstream_slow.v_index_len; + v_index_small_dist_base = self->private_data.s_decode_bitstream_slow.v_index_small_dist_base; + v_index_small_dist_extra = self->private_data.s_decode_bitstream_slow.v_index_small_dist_extra; + v_index_large_dist = self->private_data.s_decode_bitstream_slow.v_index_large_dist; + v_dist = self->private_data.s_decode_bitstream_slow.v_dist; } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_end_of_data) { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } - if (self->private_impl.f_quirks[18u]) { - if (self->private_impl.f_quirks[11u] || self->private_impl.f_quirks[12u] || self->private_impl.f_quirks[17u]) { - status = wuffs_base__make_status(wuffs_json__error__bad_quirk_combination); - goto exit; - } - } - if (self->private_impl.f_quirks[15u] || self->private_impl.f_quirks[16u]) { - if (a_dst) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_json__decoder__decode_leading(self, a_dst, a_src); - if (a_dst) { - iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; - } - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; + v_prev_byte = self->private_impl.f_stashed_bytes[0u]; + v_match_byte = ((uint32_t)(self->private_impl.f_stashed_bytes[1u])); + v_bits = self->private_impl.f_stashed_bits; + v_range = self->private_impl.f_stashed_range; + v_state = self->private_impl.f_stashed_state; + v_rep0 = self->private_impl.f_stashed_rep0; + v_rep1 = self->private_impl.f_stashed_rep1; + v_rep2 = self->private_impl.f_stashed_rep2; + v_rep3 = self->private_impl.f_stashed_rep3; + v_pos = self->private_impl.f_stashed_pos; + v_pos_end = self->private_impl.f_stashed_pos_end; + v_lc = self->private_impl.f_lc; + v_lp_mask = ((((uint64_t)(1u)) << self->private_impl.f_lp) - 1u); + v_pb_mask = ((((uint64_t)(1u)) << self->private_impl.f_pb) - 1u); + while ( ! (self->private_impl.p_decode_bitstream_slow != 0)) { + if (v_pos >= v_pos_end) { + self->private_impl.f_end_of_chunk = true; + break; } - } - v_expect = 7858u; - label__outer__continue:; - while (true) { - while (true) { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - goto label__outer__continue; + v_index_ao00 = ((v_state << 4u) | ((uint32_t)((v_pos & v_pb_mask)))); + v_prob = ((uint32_t)(self->private_data.f_probs_ao00[v_index_ao00])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao00[v_index_ao00] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; } - v_whitespace_length = 0u; - v_c = 0u; - v_class = 0u; - while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if (v_whitespace_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(v_whitespace_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_whitespace_length = 0u; + v_index_lit = (15u & ((((uint32_t)((v_pos & v_lp_mask))) << v_lc) | (((uint32_t)(v_prev_byte)) >> (8u - v_lc)))); + if (v_state >= 7u) { + v_lanl_offset = 256u; + v_tree_node = 1u; + while (v_tree_node < 256u) { + v_match_byte <<= 1u; + v_lanl_old_offset = v_lanl_offset; + v_lanl_offset &= v_match_byte; + v_lanl_index = (v_lanl_offset + v_lanl_old_offset + v_tree_node); + v_prob = ((uint32_t)(self->private_data.f_probs_lit[v_index_lit][v_lanl_index])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_lanl_offset = ((v_lanl_offset ^ v_lanl_old_offset) & 256u); + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_lit[v_index_lit][v_lanl_index] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_lit[v_index_lit][v_lanl_index] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); } - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_json__error__bad_input); - goto exit; + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); - goto label__outer__continue; - } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - v_class = WUFFS_JSON__LUT_CLASSES[v_c]; - if (v_class != 0u) { - break; } - iop_a_src += 1u; - if (v_whitespace_length >= 65534u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(65535u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_whitespace_length = 0u; - goto label__outer__continue; + } else { + v_tree_node = 1u; + while (v_tree_node < 256u) { + v_prob = ((uint32_t)(self->private_data.f_probs_lit[v_index_lit][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_lit[v_index_lit][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_lit[v_index_lit][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } } - v_whitespace_length += 1u; } - if (v_whitespace_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(v_whitespace_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_whitespace_length = 0u; - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - goto label__outer__continue; - } + v_prev_byte = ((uint8_t)(v_tree_node)); + self->private_data.s_decode_bitstream_slow.scratch = v_prev_byte; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (iop_a_dst == io2_a_dst) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + goto suspend; } - if (0u == (v_expect & (((uint32_t)(1u)) << v_class))) { - status = wuffs_base__make_status(wuffs_json__error__bad_input); - goto exit; + *iop_a_dst++ = ((uint8_t)(self->private_data.s_decode_bitstream_slow.scratch)); + v_pos += 1u; + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_LITERAL[v_state])); + continue; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao00[v_index_ao00] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_c8 = t_3; } - if (v_class == 1u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194579u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 1u; - label__string_loop_outer__continue:; - while (true) { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); - continue; - } - v_string_length = 0u; - while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if (v_string_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - } - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_json__error__bad_input); - goto exit; - } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + do { + v_prob = ((uint32_t)(self->private_data.f_probs_ao20[v_state])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao20[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); - goto label__string_loop_outer__continue; + goto suspend; } - while (((uint64_t)(io2_a_src - iop_a_src)) > 4u) { - v_c4 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - if (0u != (WUFFS_JSON__LUT_CHARS[(255u & (v_c4 >> 0u))] | - WUFFS_JSON__LUT_CHARS[(255u & (v_c4 >> 8u))] | - WUFFS_JSON__LUT_CHARS[(255u & (v_c4 >> 16u))] | - WUFFS_JSON__LUT_CHARS[(255u & (v_c4 >> 24u))])) { - break; - } - iop_a_src += 4u; - if (v_string_length > 65527u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)((v_string_length + 4u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - goto label__string_loop_outer__continue; + uint8_t t_4 = *iop_a_src++; + v_c8 = t_4; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + do { + v_prob = ((uint32_t)(self->private_data.f_probs_match_len_low[0u][0u])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_match_len_low[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_5 = *iop_a_src++; + v_c8 = t_5; } - v_string_length += 4u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - v_char = WUFFS_JSON__LUT_CHARS[v_c]; - if (v_char == 0u) { - iop_a_src += 1u; - if (v_string_length >= 65531u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(65532u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - goto label__string_loop_outer__continue; - } - v_string_length += 1u; - continue; - } else if (v_char == 1u) { - if (v_string_length != 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; + v_index_len = ((uint32_t)((v_pos & v_pb_mask))); + v_tree_node = 1u; + while (v_tree_node < 8u) { + v_prob = ((uint32_t)(self->private_data.f_probs_match_len_low[v_index_len][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_match_len_low[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_match_len_low[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); } - goto label__string_loop_outer__break; - } else if (v_char == 2u) { - if (v_string_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - goto label__string_loop_outer__continue; + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_6 = *iop_a_src++; + v_c8 = t_6; } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; } - if (((uint64_t)(io2_a_src - iop_a_src)) < 2u) { - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); - goto exit; - } + } + v_len_state = ((uint32_t)(WUFFS_LZMA__CLAMP_NO_MORE_THAN_3[(v_tree_node & 7u)])); + v_len = ((v_tree_node & 7u) + 2u); + break; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_match_len_low[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); - goto label__string_loop_outer__continue; + goto suspend; } - v_c = ((uint8_t)(((uint16_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src) >> 8u)))); - v_backslash = WUFFS_JSON__LUT_BACKSLASHES[v_c]; - if (((uint8_t)(v_backslash & 128u)) != 0u) { - iop_a_src += 2u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((6291456u | ((uint32_t)(((uint8_t)(v_backslash & 127u))))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__string_loop_outer__continue; - } else if (v_backslash != 0u) { - if (self->private_impl.f_quirks[WUFFS_JSON__LUT_QUIRKY_BACKSLASHES_QUIRKS[((uint8_t)(v_backslash & 7u))]]) { - iop_a_src += 2u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((6291456u | ((uint32_t)(WUFFS_JSON__LUT_QUIRKY_BACKSLASHES_CHARS[((uint8_t)(v_backslash & 7u))]))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__string_loop_outer__continue; - } - } else if (v_c == 117u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 6u) { - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); - goto exit; - } + uint8_t t_7 = *iop_a_src++; + v_c8 = t_7; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_prob = ((uint32_t)(self->private_data.f_probs_match_len_mid[0u][0u])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_match_len_mid[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); - goto label__string_loop_outer__continue; + goto suspend; } - v_uni4_string = (((uint64_t)(wuffs_base__peek_u48le__no_bounds_check(iop_a_src))) >> 16u); - v_uni4_value = 0u; - v_uni4_ok = 128u; - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 0u))]; - v_uni4_ok &= v_c; - v_uni4_value |= (((uint32_t)(((uint8_t)(v_c & 15u)))) << 12u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 8u))]; - v_uni4_ok &= v_c; - v_uni4_value |= (((uint32_t)(((uint8_t)(v_c & 15u)))) << 8u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 16u))]; - v_uni4_ok &= v_c; - v_uni4_value |= (((uint32_t)(((uint8_t)(v_c & 15u)))) << 4u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 24u))]; - v_uni4_ok &= v_c; - v_uni4_value |= (((uint32_t)(((uint8_t)(v_c & 15u)))) << 0u); - if (v_uni4_ok == 0u) { - } else if ((v_uni4_value < 55296u) || (57343u < v_uni4_value)) { - iop_a_src += 6u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((6291456u | v_uni4_value))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(6u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__string_loop_outer__continue; - } else if (v_uni4_value >= 56320u) { - } else { - if (((uint64_t)(io2_a_src - iop_a_src)) < 12u) { - if (a_src && a_src->meta.closed) { - if (self->private_impl.f_quirks[20u]) { - iop_a_src += 6u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(6u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__string_loop_outer__continue; - } - status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); - goto exit; - } + uint8_t t_8 = *iop_a_src++; + v_c8 = t_8; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_index_len = ((uint32_t)((v_pos & v_pb_mask))); + v_tree_node = 1u; + while (v_tree_node < 8u) { + v_prob = ((uint32_t)(self->private_data.f_probs_match_len_mid[v_index_len][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_match_len_mid[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_match_len_mid[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); - goto label__string_loop_outer__continue; - } - v_uni4_string = (wuffs_base__peek_u64le__no_bounds_check(iop_a_src + 4u) >> 16u); - if (((255u & (v_uni4_string >> 0u)) != 92u) || ((255u & (v_uni4_string >> 8u)) != 117u)) { - v_uni4_high_surrogate = 0u; - v_uni4_value = 0u; - v_uni4_ok = 0u; - } else { - v_uni4_high_surrogate = (65536u + ((v_uni4_value - 55296u) << 10u)); - v_uni4_value = 0u; - v_uni4_ok = 128u; - v_uni4_string >>= 16u; - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 0u))]; - v_uni4_ok &= v_c; - v_uni4_value |= (((uint32_t)(((uint8_t)(v_c & 15u)))) << 12u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 8u))]; - v_uni4_ok &= v_c; - v_uni4_value |= (((uint32_t)(((uint8_t)(v_c & 15u)))) << 8u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 16u))]; - v_uni4_ok &= v_c; - v_uni4_value |= (((uint32_t)(((uint8_t)(v_c & 15u)))) << 4u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni4_string >> 24u))]; - v_uni4_ok &= v_c; - v_uni4_value |= (((uint32_t)(((uint8_t)(v_c & 15u)))) << 0u); - } - if ((v_uni4_ok != 0u) && (56320u <= v_uni4_value) && (v_uni4_value <= 57343u)) { - v_uni4_value -= 56320u; - iop_a_src += 12u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((6291456u | v_uni4_high_surrogate | v_uni4_value))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(12u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__string_loop_outer__continue; - } - } - if (self->private_impl.f_quirks[20u]) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 6u) { - status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); - goto exit; - } - iop_a_src += 6u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(6u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__string_loop_outer__continue; - } - } else if ((v_c == 85u) && self->private_impl.f_quirks[2u]) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 10u) { - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); - goto exit; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); - goto label__string_loop_outer__continue; - } - v_uni8_string = wuffs_base__peek_u64le__no_bounds_check(iop_a_src + 2u); - v_uni8_value = 0u; - v_uni8_ok = 128u; - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 0u))]; - v_uni8_ok &= v_c; - v_uni8_value |= (((uint32_t)(((uint8_t)(v_c & 15u)))) << 28u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 8u))]; - v_uni8_ok &= v_c; - v_uni8_value |= (((uint32_t)(((uint8_t)(v_c & 15u)))) << 24u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 16u))]; - v_uni8_ok &= v_c; - v_uni8_value |= (((uint32_t)(((uint8_t)(v_c & 15u)))) << 20u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 24u))]; - v_uni8_ok &= v_c; - v_uni8_value |= (((uint32_t)(((uint8_t)(v_c & 15u)))) << 16u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 32u))]; - v_uni8_ok &= v_c; - v_uni8_value |= (((uint32_t)(((uint8_t)(v_c & 15u)))) << 12u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 40u))]; - v_uni8_ok &= v_c; - v_uni8_value |= (((uint32_t)(((uint8_t)(v_c & 15u)))) << 8u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 48u))]; - v_uni8_ok &= v_c; - v_uni8_value |= (((uint32_t)(((uint8_t)(v_c & 15u)))) << 4u); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_uni8_string >> 56u))]; - v_uni8_ok &= v_c; - v_uni8_value |= (((uint32_t)(((uint8_t)(v_c & 15u)))) << 0u); - if (v_uni8_ok == 0u) { - } else if ((v_uni8_value < 55296u) || ((57343u < v_uni8_value) && (v_uni8_value <= 1114111u))) { - iop_a_src += 10u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((6291456u | (v_uni8_value & 2097151u)))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(10u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__string_loop_outer__continue; - } else if (self->private_impl.f_quirks[20u]) { - iop_a_src += 10u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(10u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__string_loop_outer__continue; - } - } else if ((v_c == 120u) && self->private_impl.f_quirks[9u]) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); - goto exit; + goto suspend; } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(10); - goto label__string_loop_outer__continue; - } - v_backslash_x_string = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - v_backslash_x_ok = 128u; - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_backslash_x_string >> 16u))]; - v_backslash_x_ok &= v_c; - v_backslash_x_value = ((uint8_t)(((uint8_t)(((uint8_t)(v_c & 15u)) << 4u)))); - v_c = WUFFS_JSON__LUT_HEXADECIMAL_DIGITS[(255u & (v_backslash_x_string >> 24u))]; - v_backslash_x_ok &= v_c; - v_backslash_x_value = ((uint8_t)(((uint8_t)(v_backslash_x_value | ((uint8_t)(v_c & 15u)))))); - if ((v_backslash_x_ok == 0u) || ((v_backslash_x_string & 65535u) != 30812u)) { - status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); - goto exit; + uint8_t t_9 = *iop_a_src++; + v_c8 = t_9; } - iop_a_src += 4u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((6291456u | ((uint32_t)(v_backslash_x_value))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__string_loop_outer__continue; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; } - status = wuffs_base__make_status(wuffs_json__error__bad_backslash_escape); - goto exit; - } else if (v_char == 3u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 2u) { - if (v_string_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - goto label__string_loop_outer__continue; - } - } - if (a_src && a_src->meta.closed) { - if (self->private_impl.f_quirks[20u]) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 1u; - goto label__string_loop_outer__continue; - } - status = wuffs_base__make_status(wuffs_json__error__bad_utf_8); - goto exit; - } + } + v_len = ((v_tree_node & 7u) + 10u); + v_len_state = 3u; + break; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_match_len_mid[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(11); - goto label__string_loop_outer__continue; + goto suspend; } - v_multi_byte_utf8 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - if ((v_multi_byte_utf8 & 49152u) == 32768u) { - v_multi_byte_utf8 = ((1984u & ((uint32_t)(v_multi_byte_utf8 << 6u))) | (63u & (v_multi_byte_utf8 >> 8u))); - iop_a_src += 2u; - if (v_string_length >= 65528u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)((v_string_length + 2u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - goto label__string_loop_outer__continue; + uint8_t t_10 = *iop_a_src++; + v_c8 = t_10; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_tree_node = 1u; + while (v_tree_node < 256u) { + v_prob = ((uint32_t)(self->private_data.f_probs_match_len_high[0u][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_match_len_high[0u][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_match_len_high[0u][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - v_string_length += 2u; - continue; + uint8_t t_11 = *iop_a_src++; + v_c8 = t_11; } - } else if (v_char == 4u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 3u) { - if (v_string_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - goto label__string_loop_outer__continue; - } - } - if (a_src && a_src->meta.closed) { - if (self->private_impl.f_quirks[20u]) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 1u; - goto label__string_loop_outer__continue; - } - status = wuffs_base__make_status(wuffs_json__error__bad_utf_8); - goto exit; - } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_len = ((v_tree_node & 255u) + 18u); + v_len_state = 3u; + } while (0); + v_slot = 1u; + while (v_slot < 64u) { + v_prob = ((uint32_t)(self->private_data.f_probs_slot[v_len_state][v_slot])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_slot[v_len_state][v_slot] = ((uint16_t)(v_prob)); + v_slot = (v_slot << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_slot[v_len_state][v_slot] = ((uint16_t)(v_prob)); + v_slot = ((v_slot << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(12); - goto label__string_loop_outer__continue; - } - v_multi_byte_utf8 = ((uint32_t)(wuffs_base__peek_u24le__no_bounds_check(iop_a_src))); - if ((v_multi_byte_utf8 & 12632064u) == 8421376u) { - v_multi_byte_utf8 = ((61440u & ((uint32_t)(v_multi_byte_utf8 << 12u))) | (4032u & (v_multi_byte_utf8 >> 2u)) | (63u & (v_multi_byte_utf8 >> 16u))); - if ((2047u < v_multi_byte_utf8) && ((v_multi_byte_utf8 < 55296u) || (57343u < v_multi_byte_utf8))) { - iop_a_src += 3u; - if (v_string_length >= 65528u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)((v_string_length + 3u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - goto label__string_loop_outer__continue; - } - v_string_length += 3u; - continue; - } + goto suspend; } - } else if (v_char == 5u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { - if (v_string_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - goto label__string_loop_outer__continue; - } - } - if (a_src && a_src->meta.closed) { - if (self->private_impl.f_quirks[20u]) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 1u; - goto label__string_loop_outer__continue; - } - status = wuffs_base__make_status(wuffs_json__error__bad_utf_8); - goto exit; + uint8_t t_12 = *iop_a_src++; + v_c8 = t_12; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_slot &= 63u; + v_rep = v_slot; + if (v_slot < 4u) { + } else if (v_slot < 14u) { + v_num_extra_bits = ((v_slot >> 1u) - 1u); + v_rep = ((2u | (v_slot & 1u)) << v_num_extra_bits); + v_index_small_dist_base = ((uint32_t)(v_rep - v_slot)); + v_index_small_dist_extra = 1u; + v_dist_extra_bits = 0u; + v_i = 0u; + while (v_i < v_num_extra_bits) { + v_index_small_dist = (((uint32_t)(v_index_small_dist_base + v_index_small_dist_extra)) & 127u); + v_prob = ((uint32_t)(self->private_data.f_probs_small_dist[v_index_small_dist])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_small_dist[v_index_small_dist] = ((uint16_t)(v_prob)); + v_index_small_dist_extra = ((uint32_t)(v_index_small_dist_extra << 1u)); + v_i += 1u; + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_small_dist[v_index_small_dist] = ((uint16_t)(v_prob)); + v_index_small_dist_extra = (((uint32_t)(v_index_small_dist_extra << 1u)) | 1u); + v_dist_extra_bits |= (((uint32_t)(1u)) << v_i); + v_i += 1u; + } + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(13); - goto label__string_loop_outer__continue; + uint8_t t_13 = *iop_a_src++; + v_c8 = t_13; } - v_multi_byte_utf8 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - if ((v_multi_byte_utf8 & 3233857536u) == 2155905024u) { - v_multi_byte_utf8 = ((1835008u & ((uint32_t)(v_multi_byte_utf8 << 18u))) | - (258048u & ((uint32_t)(v_multi_byte_utf8 << 4u))) | - (4032u & (v_multi_byte_utf8 >> 10u)) | - (63u & (v_multi_byte_utf8 >> 24u))); - if ((65535u < v_multi_byte_utf8) && (v_multi_byte_utf8 <= 1114111u)) { - iop_a_src += 4u; - if (v_string_length >= 65528u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)((v_string_length + 4u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - goto label__string_loop_outer__continue; - } - v_string_length += 4u; - continue; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_rep += v_dist_extra_bits; + } else { + v_num_extra_bits = ((v_slot >> 1u) - 1u); + v_rep = ((2u | (v_slot & 1u)) << v_num_extra_bits); + v_dist_extra_bits = 0u; + while (true) { + v_range >>= 1u; + v_bits -= v_range; + v_high_bit_was_on = ((uint32_t)(0u - (v_bits >> 31u))); + v_bits += (v_range & v_high_bit_was_on); + v_dist_extra_bits = (((uint32_t)(v_dist_extra_bits << 1u)) | (((uint32_t)(v_high_bit_was_on + 1u)) & 1u)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } + uint8_t t_14 = *iop_a_src++; + v_c8 = t_14; } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; } - if (v_string_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194819u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(v_string_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_string_length = 0u; - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - goto label__string_loop_outer__continue; - } + v_num_extra_bits -= 1u; + if (v_num_extra_bits <= 4u) { + break; } - if (((uint8_t)(v_char & 128u)) != 0u) { - if (self->private_impl.f_quirks[0u]) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((6291456u | ((uint32_t)(((uint8_t)(v_char & 127u))))))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 1u; - goto label__string_loop_outer__continue; - } - if (v_char == 138u) { - status = wuffs_base__make_status(wuffs_json__error__bad_new_line_in_a_string); - goto exit; - } - status = wuffs_base__make_status(wuffs_json__error__bad_c0_control_code); - goto exit; + } + v_dist_extra_bits <<= 4u; + v_index_large_dist = 1u; + while (true) { + v_prob = ((uint32_t)(self->private_data.f_probs_large_dist[v_index_large_dist])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_large_dist[v_index_large_dist] = ((uint16_t)(v_prob)); + v_index_large_dist = (15u & ((uint32_t)(v_index_large_dist << 1u))); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_large_dist[v_index_large_dist] = ((uint16_t)(v_prob)); + v_index_large_dist = (15u & (((uint32_t)(v_index_large_dist << 1u)) | 1u)); + v_dist_extra_bits |= (((uint32_t)(1u)) << (4u - v_num_extra_bits)); } - if (self->private_impl.f_quirks[20u]) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(6356989u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 1u; - goto label__string_loop_outer__continue; + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(17); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_15 = *iop_a_src++; + v_c8 = t_15; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; } - status = wuffs_base__make_status(wuffs_json__error__bad_utf_8); - goto exit; - } - } - label__string_loop_outer__break:; - while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_json__error__bad_input); - goto exit; + v_num_extra_bits -= 1u; + if (v_num_extra_bits <= 0u) { + break; } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(14); - continue; - } - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(15); - continue; } - iop_a_src += 1u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4194579u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - break; + v_rep += v_dist_extra_bits; } - if (0u == (v_expect & (((uint32_t)(1u)) << 4u))) { - v_expect = 4104u; - goto label__outer__continue; + if (v_rep >= 4294967295u) { + self->private_impl.f_end_of_chunk = true; + goto label__outer__break; } + v_rep3 = v_rep2; + v_rep2 = v_rep1; + v_rep1 = v_rep0; + v_rep0 = v_rep; + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_MATCH[v_state])); break; - } else if (v_class == 2u) { - iop_a_src += 1u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - if (0u == (v_expect & (((uint32_t)(1u)) << 8u))) { - if (self->private_impl.f_quirks[13u]) { - v_expect = 4162u; - } else { - v_expect = 4098u; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao20[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(18); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - } else { - if (self->private_impl.f_quirks[13u]) { - v_expect = 8114u; - } else { - v_expect = 7858u; + uint8_t t_16 = *iop_a_src++; + v_c8 = t_16; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_prob = ((uint32_t)(self->private_data.f_probs_ao40[v_state])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao40[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(19); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_17 = *iop_a_src++; + v_c8 = t_17; } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; } - goto label__outer__continue; - } else if (v_class == 3u) { - iop_a_src += 1u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_expect = 7858u; - goto label__outer__continue; - } else if (v_class == 4u) { - while (true) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + v_index_ao41 = ((v_state << 4u) | ((uint32_t)((v_pos & v_pb_mask)))); + v_prob = ((uint32_t)(self->private_data.f_probs_ao41[v_index_ao41])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao41[v_index_ao41] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(20); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_18 = *iop_a_src++; + v_c8 = t_18; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; } - v_number_length = wuffs_json__decoder__decode_number(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + v_len = 1u; + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_SHORTREP[v_state])); + break; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao41[v_index_ao41] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(21); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_19 = *iop_a_src++; + v_c8 = t_19; } - v_number_status = (v_number_length >> 8u); - v_vminor = 10486787u; - if ((v_number_length & 128u) != 0u) { - v_vminor = 10486785u; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao40[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(22); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_20 = *iop_a_src++; + v_c8 = t_20; } - v_number_length = (v_number_length & 127u); - if (v_number_status == 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(v_number_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - break; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_prob = ((uint32_t)(self->private_data.f_probs_ao60[v_state])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao60[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(23); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_21 = *iop_a_src++; + v_c8 = t_21; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; } - while (v_number_length > 0u) { - v_number_length -= 1u; - if (iop_a_src > io1_a_src) { - iop_a_src--; - } else { - status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); - goto exit; + v_reptmp = v_rep1; + v_rep1 = v_rep0; + v_rep0 = v_reptmp; + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao60[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(24); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_22 = *iop_a_src++; + v_c8 = t_22; } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; } - if (v_number_status == 1u) { - if (self->private_impl.f_quirks[14u]) { - if (a_dst) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + v_prob = ((uint32_t)(self->private_data.f_probs_ao63[v_state])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_ao63[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(25); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_23 = *iop_a_src++; + v_c8 = t_23; } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_reptmp = v_rep2; + v_rep2 = v_rep1; + v_rep1 = v_rep0; + v_rep0 = v_reptmp; + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_ao63[v_state] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(26); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_24 = *iop_a_src++; + v_c8 = t_24; } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); - status = wuffs_json__decoder__decode_inf_nan(self, a_dst, a_src); - if (a_dst) { - iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_reptmp = v_rep3; + v_rep3 = v_rep2; + v_rep2 = v_rep1; + v_rep1 = v_rep0; + v_rep0 = v_reptmp; + } + } + } + do { + v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_low[0u][0u])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_longrep_len_low[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(27); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + uint8_t t_25 = *iop_a_src++; + v_c8 = t_25; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_index_len = ((uint32_t)((v_pos & v_pb_mask))); + v_tree_node = 1u; + while (v_tree_node < 8u) { + v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_low[v_index_len][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_longrep_len_low[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_longrep_len_low[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(28); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_26 = *iop_a_src++; + v_c8 = t_26; } - if (status.repr) { + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + } + v_len = ((v_tree_node & 7u) + 2u); + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_LONGREP[v_state])); + break; + } + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_longrep_len_low[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(29); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_27 = *iop_a_src++; + v_c8 = t_27; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_mid[0u][0u])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_longrep_len_mid[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(30); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - break; + uint8_t t_28 = *iop_a_src++; + v_c8 = t_28; } - status = wuffs_base__make_status(wuffs_json__error__bad_input); - goto exit; - } else if (v_number_status == 2u) { - status = wuffs_base__make_status(wuffs_json__error__unsupported_number_length); - goto exit; - } else { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(17); - while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(18); + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } + v_index_len = ((uint32_t)((v_pos & v_pb_mask))); + v_tree_node = 1u; + while (v_tree_node < 8u) { + v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_mid[v_index_len][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_longrep_len_mid[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_longrep_len_mid[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(31); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_29 = *iop_a_src++; + v_c8 = t_29; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; } } + v_len = ((v_tree_node & 7u) + 10u); + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_LONGREP[v_state])); + break; } - break; - } else if (v_class == 5u) { - v_vminor = 2113553u; - if (v_depth == 0u) { - } else if (0u != (v_expect_after_value & (((uint32_t)(1u)) << 6u))) { - v_vminor = 2113601u; - } else { - v_vminor = 2113569u; + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_longrep_len_mid[0u][0u] = ((uint16_t)(v_prob)); + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(32); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_30 = *iop_a_src++; + v_c8 = t_30; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; } - if (v_depth >= 1024u) { - status = wuffs_base__make_status(wuffs_json__error__unsupported_recursion_depth); - goto exit; + v_tree_node = 1u; + while (v_tree_node < 256u) { + v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_high[0u][v_tree_node])); + v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); + if (v_bits < v_threshold) { + v_range = v_threshold; + v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); + self->private_data.f_probs_longrep_len_high[0u][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = (v_tree_node << 1u); + } else { + v_bits -= v_threshold; + v_range -= v_threshold; + v_prob -= (v_prob >> 5u); + self->private_data.f_probs_longrep_len_high[0u][v_tree_node] = ((uint16_t)(v_prob)); + v_tree_node = ((v_tree_node << 1u) | 1u); + } + if ((v_range >> 24u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(33); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_31 = *iop_a_src++; + v_c8 = t_31; + } + v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); + v_range <<= 8u; + } } - v_stack_byte = (v_depth / 32u); - v_stack_bit = (v_depth & 31u); - self->private_data.f_stack[v_stack_byte] |= (((uint32_t)(1u)) << v_stack_bit); - v_depth += 1u; - iop_a_src += 1u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_expect = 4162u; - v_expect_after_value = 4164u; - goto label__outer__continue; - } else if (v_class == 6u) { - iop_a_src += 1u; - if (v_depth <= 1u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(2101314u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__outer__break; + v_len = ((v_tree_node & 255u) + 18u); + v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_LONGREP[v_state])); + } while (0); + } while (0); + v_dist = (v_rep0 + 1u); + if ((((uint64_t)(v_dist)) > v_pos) || (((uint64_t)(v_dist)) > ((uint64_t)(self->private_impl.f_dict_size)))) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_distance); + goto exit; + } + v_pos += ((uint64_t)(v_len)); + while (274u > ((uint64_t)(io2_a_dst - iop_a_dst))) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(34); + } + if (((uint64_t)(v_dist)) > ((uint64_t)(iop_a_dst - io0_a_dst))) { + v_adj_dist = ((uint32_t)((((uint64_t)(v_dist)) - ((uint64_t)(iop_a_dst - io0_a_dst))))); + if (v_adj_dist > self->private_impl.f_dict_seen) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_distance); + goto exit; + } + v_wb_index = ((uint64_t)(((uint64_t)(self->private_impl.f_dict_workbuf_index)) - ((uint64_t)(v_adj_dist)))); + while (v_wb_index >= 9223372036854775808u) { + v_wb_index += ((uint64_t)(self->private_impl.f_dict_size)); + } + if (v_wb_index >= ((uint64_t)(a_workbuf.len))) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + if (v_len < v_adj_dist) { + wuffs_private_impl__io_writer__limited_copy_u32_from_slice( + &iop_a_dst, io2_a_dst,(v_len + 1u), wuffs_base__slice_u8__subslice_i(a_workbuf, v_wb_index)); + if ( ! (iop_a_dst > io1_a_dst)) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; } - v_depth -= 1u; - v_stack_byte = ((v_depth - 1u) / 32u); - v_stack_bit = ((v_depth - 1u) & 31u); - if (0u == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1u)) << v_stack_bit))) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(2105410u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_expect = 4356u; - v_expect_after_value = 4356u; - } else { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(2113602u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_expect = 4164u; - v_expect_after_value = 4164u; + v_match_byte = ((uint32_t)(iop_a_dst[-1])); + iop_a_dst--; + if ( ! (iop_a_dst > io1_a_dst)) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; } - goto label__outer__continue; - } else if (v_class == 7u) { - v_vminor = 2105361u; - if (v_depth == 0u) { - } else if (0u != (v_expect_after_value & (((uint32_t)(1u)) << 6u))) { - v_vminor = 2105409u; - } else { - v_vminor = 2105377u; + v_prev_byte = iop_a_dst[-1]; + continue; + } else if (v_len == v_adj_dist) { + wuffs_private_impl__io_writer__limited_copy_u32_from_slice( + &iop_a_dst, io2_a_dst,v_len, wuffs_base__slice_u8__subslice_i(a_workbuf, v_wb_index)); + wuffs_private_impl__io_writer__limited_copy_u32_from_history( + &iop_a_dst, io0_a_dst, io2_a_dst, 1u, v_dist); + if ( ! (iop_a_dst > io1_a_dst)) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; } - if (v_depth >= 1024u) { - status = wuffs_base__make_status(wuffs_json__error__unsupported_recursion_depth); + v_match_byte = ((uint32_t)(iop_a_dst[-1])); + iop_a_dst--; + if ( ! (iop_a_dst > io1_a_dst)) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); goto exit; } - v_stack_byte = (v_depth / 32u); - v_stack_bit = (v_depth & 31u); - self->private_data.f_stack[v_stack_byte] &= (4294967295u ^ (((uint32_t)(1u)) << v_stack_bit)); - v_depth += 1u; - iop_a_src += 1u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(v_vminor)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_expect = 8114u; - v_expect_after_value = 4356u; - goto label__outer__continue; - } else if (v_class == 8u) { - iop_a_src += 1u; - if (v_depth <= 1u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(2101282u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - goto label__outer__break; + v_prev_byte = iop_a_dst[-1]; + continue; + } + wuffs_private_impl__io_writer__limited_copy_u32_from_slice( + &iop_a_dst, io2_a_dst,v_adj_dist, wuffs_base__slice_u8__subslice_i(a_workbuf, v_wb_index)); + v_len -= v_adj_dist; + if ((((uint64_t)(v_len)) > ((uint64_t)(io2_a_dst - iop_a_dst))) || (((uint64_t)(v_dist)) > ((uint64_t)(iop_a_dst - io0_a_dst)))) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + } + v_match_cusp = wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast_return_cusp( + &iop_a_dst, io0_a_dst, io2_a_dst, v_len, v_dist); + v_match_byte = (v_match_cusp >> 8u); + v_prev_byte = ((uint8_t)(v_match_cusp)); + } + label__outer__break:; + self->private_impl.f_stashed_bytes[0u] = v_prev_byte; + self->private_impl.f_stashed_bytes[1u] = ((uint8_t)(v_match_byte)); + self->private_impl.f_stashed_bits = v_bits; + self->private_impl.f_stashed_range = v_range; + self->private_impl.f_stashed_state = v_state; + self->private_impl.f_stashed_rep0 = v_rep0; + self->private_impl.f_stashed_rep1 = v_rep1; + self->private_impl.f_stashed_rep2 = v_rep2; + self->private_impl.f_stashed_rep3 = v_rep3; + self->private_impl.f_stashed_pos = v_pos; + self->private_impl.f_stashed_pos_end = v_pos_end; + + ok: + self->private_impl.p_decode_bitstream_slow = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_bitstream_slow = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_bitstream_slow.v_bits = v_bits; + self->private_data.s_decode_bitstream_slow.v_range = v_range; + self->private_data.s_decode_bitstream_slow.v_state = v_state; + self->private_data.s_decode_bitstream_slow.v_rep0 = v_rep0; + self->private_data.s_decode_bitstream_slow.v_rep1 = v_rep1; + self->private_data.s_decode_bitstream_slow.v_rep2 = v_rep2; + self->private_data.s_decode_bitstream_slow.v_rep3 = v_rep3; + self->private_data.s_decode_bitstream_slow.v_rep = v_rep; + self->private_data.s_decode_bitstream_slow.v_pos = v_pos; + self->private_data.s_decode_bitstream_slow.v_pos_end = v_pos_end; + self->private_data.s_decode_bitstream_slow.v_lc = v_lc; + self->private_data.s_decode_bitstream_slow.v_lp_mask = v_lp_mask; + self->private_data.s_decode_bitstream_slow.v_pb_mask = v_pb_mask; + self->private_data.s_decode_bitstream_slow.v_tree_node = v_tree_node; + self->private_data.s_decode_bitstream_slow.v_prev_byte = v_prev_byte; + self->private_data.s_decode_bitstream_slow.v_match_byte = v_match_byte; + self->private_data.s_decode_bitstream_slow.v_len_state = v_len_state; + self->private_data.s_decode_bitstream_slow.v_slot = v_slot; + self->private_data.s_decode_bitstream_slow.v_len = v_len; + self->private_data.s_decode_bitstream_slow.v_lanl_offset = v_lanl_offset; + self->private_data.s_decode_bitstream_slow.v_num_extra_bits = v_num_extra_bits; + self->private_data.s_decode_bitstream_slow.v_dist_extra_bits = v_dist_extra_bits; + self->private_data.s_decode_bitstream_slow.v_i = v_i; + self->private_data.s_decode_bitstream_slow.v_index_lit = v_index_lit; + self->private_data.s_decode_bitstream_slow.v_index_len = v_index_len; + self->private_data.s_decode_bitstream_slow.v_index_small_dist_base = v_index_small_dist_base; + self->private_data.s_decode_bitstream_slow.v_index_small_dist_extra = v_index_small_dist_extra; + self->private_data.s_decode_bitstream_slow.v_index_large_dist = v_index_large_dist; + self->private_data.s_decode_bitstream_slow.v_dist = v_dist; + + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func lzma.decoder.add_history + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzma__decoder__add_history( + wuffs_lzma__decoder* self, + wuffs_base__slice_u8 a_hist, + wuffs_base__slice_u8 a_workbuf) { + uint64_t v_dict_workbuf_index = 0; + uint64_t v_dict_size = 0; + uint64_t v_hist_length = 0; + wuffs_base__slice_u8 v_s = {0}; + uint64_t v_n_copied = 0; + uint64_t v_n = 0; + + v_dict_workbuf_index = ((uint64_t)(self->private_impl.f_dict_workbuf_index)); + v_dict_size = ((uint64_t)(self->private_impl.f_dict_size)); + if (((uint64_t)(a_hist.len)) == 0u) { + return wuffs_base__make_status(NULL); + } + if (((uint64_t)(a_workbuf.len)) < (v_dict_size + 273u)) { + return wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); + } + v_hist_length = ((uint64_t)(a_hist.len)); + if (v_hist_length > 4294967295u) { + self->private_impl.f_dict_seen = 4294967295u; + } else { + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dict_seen, ((uint32_t)(v_hist_length))); + } + v_s = a_hist; + if (((uint64_t)(v_s.len)) >= v_dict_size) { + v_s = wuffs_private_impl__slice_u8__suffix(v_s, v_dict_size); + wuffs_private_impl__slice_u8__copy_from_slice(a_workbuf, v_s); + self->private_impl.f_dict_workbuf_index = 0u; + } else if (v_dict_workbuf_index > v_dict_size) { + return wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + } else { + v_n_copied = wuffs_private_impl__slice_u8__copy_from_slice(wuffs_base__slice_u8__subslice_ij(a_workbuf, v_dict_workbuf_index, v_dict_size), v_s); + if (v_n_copied < ((uint64_t)(v_s.len))) { + v_n = wuffs_private_impl__slice_u8__copy_from_slice(a_workbuf, wuffs_base__slice_u8__subslice_i(v_s, v_n_copied)); + self->private_impl.f_dict_workbuf_index = ((uint32_t)(v_n)); + } else { + v_n = ((uint64_t)(v_dict_workbuf_index + v_n_copied)); + if (v_n < v_dict_size) { + self->private_impl.f_dict_workbuf_index = ((uint32_t)(v_n)); + } else { + self->private_impl.f_dict_workbuf_index = 0u; + } + } + } + if ((273u > v_dict_size) || (v_dict_size > ((uint64_t)(a_workbuf.len)))) { + return wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + } + wuffs_private_impl__slice_u8__copy_from_slice(wuffs_base__slice_u8__subslice_i(a_workbuf, v_dict_size), wuffs_base__slice_u8__subslice_j(a_workbuf, 273u)); + return wuffs_base__make_status(NULL); +} + +// -------- func lzma.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_lzma__decoder__get_quirk( + const wuffs_lzma__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (a_key == 1290294272u) { + if (self->private_impl.f_allow_non_zero_initial_byte) { + return 1u; + } + } else if (a_key == 1290294273u) { + return ((uint64_t)(self->private_impl.f_format_extension)); + } + return 0u; +} + +// -------- func lzma.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_lzma__decoder__set_quirk( + wuffs_lzma__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + uint32_t v_v = 0; + uint32_t v_n = 0; + + if (a_key == 1290294272u) { + self->private_impl.f_allow_non_zero_initial_byte = (a_value > 0u); + } else if (a_key == 1290294273u) { + if (a_value == 0u) { + self->private_impl.f_format_extension = 0u; + return wuffs_base__make_status(NULL); + } else if ((a_value & 255u) == 1u) { + if ((a_value >> 8u) <= 255u) { + self->private_impl.f_format_extension = ((uint32_t)(a_value)); + v_v = (self->private_impl.f_format_extension >> 8u); + v_n = (((uint32_t)(1u)) << (v_v & 31u)); + wuffs_private_impl__u32__sat_sub_indirect(&v_n, ((v_n >> 4u) * ((v_v >> 5u) & 7u))); + if ((v_n < 4096u) || (536870912u < v_n)) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + self->private_impl.f_dict_size = v_n; + return wuffs_base__make_status(NULL); + } + } else if ((a_value & 255u) == 2u) { + if ((a_value >> 8u) <= 40u) { + self->private_impl.f_format_extension = ((uint32_t)(a_value)); + v_v = (self->private_impl.f_format_extension >> 8u); + if (v_v < 40u) { + self->private_impl.f_dict_size = ((2u | (v_v & 1u)) << ((v_v >> 1u) + 11u)); + } else { + self->private_impl.f_dict_size = 4294967295u; + } + return wuffs_base__make_status(NULL); + } + } + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} + +// -------- func lzma.decoder.dst_history_retain_length + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_lzma__decoder__dst_history_retain_length( + const wuffs_lzma__decoder* self) { + if (!self) { + return wuffs_base__utility__make_optional_u63(false, 0u); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__make_optional_u63(false, 0u); + } + + return wuffs_base__utility__make_optional_u63(true, 0u); +} + +// -------- func lzma.decoder.workbuf_len + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_lzma__decoder__workbuf_len( + const wuffs_lzma__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + uint64_t v_m = 0; + + if (self->private_impl.f_dict_size == 0u) { + return wuffs_base__utility__make_range_ii_u64(0u, 0u); + } + v_m = (((uint64_t)(self->private_impl.f_dict_size)) + 273u); + return wuffs_base__utility__make_range_ii_u64(v_m, v_m); +} + +// -------- func lzma.decoder.transform_io + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_lzma__decoder__transform_io( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint64_t v_mark = 0; + wuffs_base__status v_dti_status = wuffs_base__make_status(NULL); + wuffs_base__status v_ah_status = wuffs_base__make_status(NULL); + + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + + uint32_t coro_susp_point = self->private_impl.p_transform_io; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + v_mark = ((uint64_t)(iop_a_dst - io0_a_dst)); + { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + wuffs_base__status t_0 = wuffs_lzma__decoder__do_transform_io(self, a_dst, a_src, a_workbuf); + v_dti_status = t_0; + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + } + if ( ! wuffs_base__status__is_suspension(&v_dti_status)) { + status = v_dti_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } else if ((v_dti_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_lzma__error__truncated_input); + goto exit; + } + v_ah_status = wuffs_lzma__decoder__add_history(self, wuffs_private_impl__io__since(v_mark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst), a_workbuf); + if (wuffs_base__status__is_error(&v_ah_status)) { + status = v_ah_status; + goto exit; + } + status = v_dti_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_transform_io = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func lzma.decoder.do_transform_io + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzma__decoder__do_transform_io( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_header_byte = 0; + uint8_t v_c8 = 0; + uint32_t v_c32 = 0; + uint8_t v_prop_byte = 0; + uint32_t v_lc = 0; + uint32_t v_lp = 0; + uint32_t v_pb = 0; + uint32_t v_length = 0; + uint32_t v_n_copied = 0; + uint64_t v_smark = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_transform_io; + if (coro_susp_point) { + v_header_byte = self->private_data.s_do_transform_io.v_header_byte; + v_length = self->private_data.s_do_transform_io.v_length; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + self->private_impl.f_lzma2_need_prob_reset = true; + self->private_impl.f_lzma2_need_properties = true; + self->private_impl.f_lzma2_need_dict_reset = true; + while (true) { + if ((self->private_impl.f_format_extension & 255u) == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - v_depth -= 1u; - v_stack_byte = ((v_depth - 1u) / 32u); - v_stack_bit = ((v_depth - 1u) & 31u); - if (0u == (self->private_data.f_stack[v_stack_byte] & (((uint32_t)(1u)) << v_stack_bit))) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(2105378u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_expect = 4356u; - v_expect_after_value = 4356u; + uint8_t t_0 = *iop_a_src++; + v_prop_byte = t_0; + } + if (v_prop_byte >= 225u) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_header); + goto exit; + } + v_lc = ((uint32_t)(((uint8_t)(v_prop_byte % 9u)))); +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_prop_byte /= 9u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_lp = ((uint32_t)(((uint8_t)(v_prop_byte % 5u)))); + v_pb = ((uint32_t)(((uint8_t)(v_prop_byte / 5u)))); + if ((v_lc + v_lp) > 4u) { + status = wuffs_base__make_status(wuffs_lzma__error__unsupported_properties); + goto exit; + } + self->private_impl.f_lc = wuffs_base__u32__min(v_lc, 4u); + self->private_impl.f_lp = v_lp; + self->private_impl.f_pb = v_pb; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; } else { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(2113570u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - v_expect = 4164u; - v_expect_after_value = 4164u; - } - goto label__outer__continue; - } else if (v_class == 9u) { - v_match = wuffs_private_impl__io_reader__match7(iop_a_src, io2_a_src, a_src, 111546413966853u); - if (v_match == 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(8388612u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(5u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - if (((uint64_t)(io2_a_src - iop_a_src)) < 5u) { - status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); - goto exit; + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 24) { + t_1 = ((uint32_t)(*scratch)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; } - iop_a_src += 5u; - break; - } else if (v_match == 1u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(19); - goto label__outer__continue; } - } else if (v_class == 10u) { - v_match = wuffs_private_impl__io_reader__match7(iop_a_src, io2_a_src, a_src, 435762131972u); - if (v_match == 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(8388616u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { - status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); - goto exit; + v_c32 = t_1; + } + self->private_impl.f_dict_size = wuffs_base__u32__max(v_c32, 4096u); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + uint64_t t_2; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_2 = wuffs_base__peek_u64le__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; + if (num_bits_2 == 56) { + t_2 = ((uint64_t)(*scratch)); + break; + } + num_bits_2 += 8u; + *scratch |= ((uint64_t)(num_bits_2)) << 56; } - iop_a_src += 4u; - break; - } else if (v_match == 1u) { + } + self->private_impl.f_decoded_length = t_2; + } + if ((self->private_impl.f_decoded_length >= 9223372036854775808u) && (self->private_impl.f_decoded_length != 18446744073709551615u)) { + status = wuffs_base__make_status(wuffs_lzma__error__unsupported_decoded_length); + goto exit; + } + wuffs_lzma__decoder__initialize_probs(self); + } else if ((self->private_impl.f_format_extension & 255u) == 1u) { + self->private_impl.f_lc = 3u; + self->private_impl.f_lp = 0u; + self->private_impl.f_pb = 2u; + self->private_impl.f_decoded_length = 18446744073709551615u; + wuffs_lzma__decoder__initialize_probs(self); + } else { + while (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); + } + if (wuffs_base__peek_u8be__no_bounds_check(iop_a_src) == 0u) { + iop_a_src += 1u; + break; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(20); - goto label__outer__continue; + goto suspend; } - } else if (v_class == 11u) { - v_match = wuffs_private_impl__io_reader__match7(iop_a_src, io2_a_src, a_src, 465676103172u); - if (v_match == 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(8388610u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { - status = wuffs_base__make_status(wuffs_json__error__internal_error_inconsistent_i_o); - goto exit; + uint8_t t_3 = *iop_a_src++; + v_header_byte = t_3; + } + if (v_header_byte < 128u) { + if (v_header_byte < 2u) { + self->private_impl.f_lzma2_need_prob_reset = true; + self->private_impl.f_lzma2_need_properties = true; + self->private_impl.f_lzma2_need_dict_reset = false; + wuffs_lzma__decoder__initialize_dict(self); + } else if ((v_header_byte > 2u) || self->private_impl.f_lzma2_need_dict_reset) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_lzma2_header); + goto exit; + } + self->private_impl.f_prev_lzma2_chunk_was_uncompressed = true; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + uint32_t t_4; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_4 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_4 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_4); + if (num_bits_4 == 8) { + t_4 = ((uint32_t)(*scratch >> 48)); + break; + } + num_bits_4 += 8u; + *scratch |= ((uint64_t)(num_bits_4)); + } } - iop_a_src += 4u; - break; - } else if (v_match == 1u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(21); - goto label__outer__continue; + v_c32 = t_4; } - if (self->private_impl.f_quirks[14u]) { - if (a_dst) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + v_length = (1u + v_c32); + while (true) { + v_n_copied = wuffs_private_impl__io_writer__limited_copy_u32_from_reader( + &iop_a_dst, io2_a_dst,v_length, &iop_a_src, io2_a_src); + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_stashed_pos, ((uint64_t)(v_n_copied))); + if (v_length <= v_n_copied) { + break; } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + v_length -= v_n_copied; + if (((uint64_t)(io2_a_dst - iop_a_dst)) == 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(10); + } else { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(11); } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(22); - status = wuffs_json__decoder__decode_inf_nan(self, a_dst, a_src); - if (a_dst) { - iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + continue; + } + self->private_impl.f_decoded_length = ((uint64_t)(v_header_byte)); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + uint32_t t_5; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_5 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_5 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_5); + if (num_bits_5 == 8) { + t_5 = ((uint32_t)(*scratch >> 48)); + break; + } + num_bits_5 += 8u; + *scratch |= ((uint64_t)(num_bits_5)); } - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + v_c32 = t_5; + } + self->private_impl.f_decoded_length = (((self->private_impl.f_decoded_length & 31u) << 16u) + ((uint64_t)((1u + v_c32)))); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); + uint32_t t_6; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_6 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_6 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_6); + if (num_bits_6 == 8) { + t_6 = ((uint32_t)(*scratch >> 48)); + break; + } + num_bits_6 += 8u; + *scratch |= ((uint64_t)(num_bits_6)); } - if (status.repr) { + } + v_c32 = t_6; + } + self->private_impl.f_lzma2_encoded_length_want = ((uint64_t)((1u + v_c32))); + if (v_header_byte >= 160u) { + wuffs_lzma__decoder__initialize_probs(self); + self->private_impl.f_lzma2_need_prob_reset = false; + } + if (v_header_byte >= 192u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - break; + uint8_t t_7 = *iop_a_src++; + v_prop_byte = t_7; } - } else if (v_class == 12u) { - if (self->private_impl.f_quirks[11u] || self->private_impl.f_quirks[12u]) { - if (a_dst) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(23); - status = wuffs_json__decoder__decode_comment(self, a_dst, a_src); - if (a_dst) { - iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; - } - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { + if (v_prop_byte >= 225u) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_lzma2_header); + goto exit; + } + v_lc = ((uint32_t)(((uint8_t)(v_prop_byte % 9u)))); +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_prop_byte /= 9u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_lp = ((uint32_t)(((uint8_t)(v_prop_byte % 5u)))); + v_pb = ((uint32_t)(((uint8_t)(v_prop_byte / 5u)))); + if ((v_lc + v_lp) > 4u) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_lzma2_header); + goto exit; + } + self->private_impl.f_lc = wuffs_base__u32__min(v_lc, 4u); + self->private_impl.f_lp = v_lp; + self->private_impl.f_pb = v_pb; + self->private_impl.f_lzma2_need_properties = false; + } + if (v_header_byte >= 224u) { + self->private_impl.f_lzma2_need_dict_reset = false; + wuffs_lzma__decoder__initialize_dict(self); + } else if (self->private_impl.f_prev_lzma2_chunk_was_uncompressed) { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(17); + status = wuffs_lzma__decoder__update_stashed_bytes(self, a_dst, a_workbuf); + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (status.repr) { + goto suspend; + } + } + self->private_impl.f_prev_lzma2_chunk_was_uncompressed = false; + if (self->private_impl.f_lzma2_need_prob_reset || self->private_impl.f_lzma2_need_properties || self->private_impl.f_lzma2_need_dict_reset) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_lzma2_header); + goto exit; + } + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(18); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_8 = *iop_a_src++; + v_c8 = t_8; + } + if ((v_c8 != 0u) && ! self->private_impl.f_allow_non_zero_initial_byte) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_code); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(19); + uint32_t t_9; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_9 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(20); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - if (self->private_impl.f_comment_type > 0u) { - goto label__outer__continue; + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_9 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_9); + if (num_bits_9 == 24) { + t_9 = ((uint32_t)(*scratch >> 32)); + break; } + num_bits_9 += 8u; + *scratch |= ((uint64_t)(num_bits_9)); } } - status = wuffs_base__make_status(wuffs_json__error__bad_input); + self->private_impl.f_stashed_bits = t_9; + } + if (self->private_impl.f_stashed_bits == 4294967295u) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_code); goto exit; } - if (v_depth == 0u) { + self->private_impl.f_stashed_range = 4294967295u; + self->private_impl.f_stashed_pos_end = wuffs_base__u64__sat_add(self->private_impl.f_stashed_pos, self->private_impl.f_decoded_length); + if ((self->private_impl.f_stashed_pos_end == 18446744073709551615u) && (self->private_impl.f_decoded_length != 18446744073709551615u)) { + status = wuffs_base__make_status(wuffs_lzma__error__unsupported_decoded_length); + goto exit; + } + self->private_impl.f_lzma2_encoded_length_have = 5u; + while (((uint64_t)(a_workbuf.len)) < (((uint64_t)(self->private_impl.f_dict_size)) + 273u)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_workbuf); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(21); + } + while (true) { + v_smark = ((uint64_t)(iop_a_src - io0_a_src)); + { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_10 = wuffs_lzma__decoder__decode_bitstream(self, a_dst, a_src, a_workbuf); + v_status = t_10; + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_lzma2_encoded_length_have, wuffs_private_impl__io__count_since(v_smark, ((uint64_t)(iop_a_src - io0_a_src)))); + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(22); + } + if (self->private_impl.f_decoded_length == 18446744073709551615u) { + if (self->private_impl.f_stashed_bits != 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_bitstream_trailer); + goto exit; + } + } else if (self->private_impl.f_stashed_pos != self->private_impl.f_stashed_pos_end) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_decoded_length); + goto exit; + } else if (self->private_impl.f_stashed_bits != 0u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(23); + status = wuffs_lzma__decoder__decode_optional_end_of_stream(self, a_src, a_workbuf); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + if (self->private_impl.f_stashed_bits != 0u) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_bitstream_trailer); + goto exit; + } + } + if ((self->private_impl.f_format_extension & 255u) < 2u) { break; + } else if (self->private_impl.f_lzma2_encoded_length_have != self->private_impl.f_lzma2_encoded_length_want) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_lzma2_header); + goto exit; } - v_expect = v_expect_after_value; } - label__outer__break:; - if (self->private_impl.f_quirks[17u] || self->private_impl.f_quirks[18u]) { - if (a_dst) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(24); - status = wuffs_json__decoder__decode_trailer(self, a_dst, a_src); - if (a_dst) { - iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; - } - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } + + ok: + self->private_impl.p_do_transform_io = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_transform_io.v_header_byte = v_header_byte; + self->private_data.s_do_transform_io.v_length = v_length; + + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func lzma.decoder.decode_bitstream + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzma__decoder__decode_bitstream( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_bitstream; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + self->private_impl.f_end_of_chunk = false; + while (true) { + v_status = wuffs_lzma__decoder__decode_bitstream_fast(self, a_dst, a_src, a_workbuf); + if (wuffs_base__status__is_error(&v_status)) { + status = v_status; + goto exit; + } + if (self->private_impl.f_end_of_chunk) { + break; + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_lzma__decoder__decode_bitstream_slow(self, a_dst, a_src, a_workbuf); + if (status.repr) { + goto suspend; + } + if (self->private_impl.f_end_of_chunk) { + break; + } + } + + goto ok; + ok: + self->private_impl.p_decode_bitstream = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_bitstream = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + return status; +} + +// -------- func lzma.decoder.update_stashed_bytes + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzma__decoder__update_stashed_bytes( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_dist = 0; + uint32_t v_which = 0; + uint32_t v_adj_dist = 0; + uint64_t v_wb_index = 0; + + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + + uint32_t coro_susp_point = self->private_impl.p_update_stashed_bytes; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + v_dist = 1u; + v_which = 0u; + while (v_which < 2u) { + if (((uint64_t)(v_dist)) <= ((uint64_t)(iop_a_dst - io0_a_dst))) { + wuffs_private_impl__io_writer__limited_copy_u32_from_history( + &iop_a_dst, io0_a_dst, io2_a_dst, 1u, v_dist); + if ( ! (iop_a_dst > io1_a_dst)) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + self->private_impl.f_stashed_bytes[v_which] = iop_a_dst[-1]; + iop_a_dst--; + } else { + v_adj_dist = ((uint32_t)((((uint64_t)(v_dist)) - ((uint64_t)(iop_a_dst - io0_a_dst))))); + v_wb_index = ((uint64_t)(((uint64_t)(self->private_impl.f_dict_workbuf_index)) - ((uint64_t)(v_adj_dist)))); + while (v_wb_index >= 9223372036854775808u) { + v_wb_index += ((uint64_t)(self->private_impl.f_dict_size)); + } + if (v_wb_index >= ((uint64_t)(a_workbuf.len))) { + status = wuffs_base__make_status(wuffs_lzma__error__internal_error_inconsistent_dictionary_state); + goto exit; + } + self->private_impl.f_stashed_bytes[v_which] = a_workbuf.ptr[v_wb_index]; + } + v_dist = (1u + self->private_impl.f_stashed_rep0); + v_which += 1u; + } + + ok: + self->private_impl.p_update_stashed_bytes = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_update_stashed_bytes = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + + return status; +} + +// -------- func lzma.decoder.decode_optional_end_of_stream + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzma__decoder__decode_optional_end_of_stream( + wuffs_lzma__decoder* self, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__io_buffer u_w = wuffs_base__empty_io_buffer(); + wuffs_base__io_buffer* v_w = &u_w; + uint8_t* iop_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io0_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_optional_end_of_stream; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + self->private_impl.f_stashed_pos_end = 18446744073709551615u; + while (true) { + { + wuffs_base__io_buffer* o_0_v_w = v_w; + uint8_t* o_0_iop_v_w = iop_v_w; + uint8_t* o_0_io0_v_w = io0_v_w; + uint8_t* o_0_io1_v_w = io1_v_w; + uint8_t* o_0_io2_v_w = io2_v_w; + v_w = wuffs_private_impl__io_writer__set( + &u_w, + &iop_v_w, + &io0_v_w, + &io1_v_w, + &io2_v_w, + wuffs_base__utility__empty_slice_u8(), + 0u); + { + wuffs_base__status t_0 = wuffs_lzma__decoder__decode_bitstream_slow(self, v_w, a_src, a_workbuf); + v_status = t_0; + } + v_w = o_0_v_w; + iop_v_w = o_0_iop_v_w; + io0_v_w = o_0_io0_v_w; + io1_v_w = o_0_io1_v_w; + io2_v_w = o_0_io2_v_w; + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } else if (v_status.repr == wuffs_base__suspension__short_write) { + status = wuffs_base__make_status(wuffs_lzma__error__bad_bitstream_trailer); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + self->private_impl.f_stashed_pos_end = self->private_impl.f_stashed_pos; + + ok: + self->private_impl.p_decode_optional_end_of_stream = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_optional_end_of_stream = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + return status; +} + +// -------- func lzma.decoder.initialize_dict + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_lzma__decoder__initialize_dict( + wuffs_lzma__decoder* self) { + self->private_impl.f_dict_workbuf_index = 0u; + self->private_impl.f_dict_seen = 0u; + self->private_impl.f_stashed_bytes[0u] = 0u; + self->private_impl.f_stashed_bytes[1u] = 0u; + self->private_impl.f_stashed_pos = 0u; + return wuffs_base__make_empty_struct(); +} + +// -------- func lzma.decoder.initialize_probs + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_lzma__decoder__initialize_probs( + wuffs_lzma__decoder* self) { + uint32_t v_i = 0; + uint32_t v_j = 0; + + v_i = 0u; + while (v_i < 192u) { + self->private_data.f_probs_ao00[v_i] = 1024u; + v_i += 1u; + } + v_i = 0u; + while (v_i < 12u) { + self->private_data.f_probs_ao20[v_i] = 1024u; + v_i += 1u; + } + v_i = 0u; + while (v_i < 12u) { + self->private_data.f_probs_ao40[v_i] = 1024u; + v_i += 1u; + } + v_i = 0u; + while (v_i < 192u) { + self->private_data.f_probs_ao41[v_i] = 1024u; + v_i += 1u; + } + v_i = 0u; + while (v_i < 12u) { + self->private_data.f_probs_ao60[v_i] = 1024u; + v_i += 1u; + } + v_i = 0u; + while (v_i < 12u) { + self->private_data.f_probs_ao63[v_i] = 1024u; + v_i += 1u; + } + v_i = 0u; + while (v_i < 16u) { + v_j = 0u; + while (v_j < 8u) { + self->private_data.f_probs_match_len_low[v_i][v_j] = 1024u; + v_j += 1u; + } + v_i += 1u; + } + v_i = 0u; + while (v_i < 16u) { + v_j = 0u; + while (v_j < 8u) { + self->private_data.f_probs_match_len_mid[v_i][v_j] = 1024u; + v_j += 1u; } - self->private_impl.f_end_of_data = true; - - ok: - self->private_impl.p_decode_tokens = 0; - goto exit; + v_i += 1u; } - - goto suspend; - suspend: - self->private_impl.p_decode_tokens = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; - self->private_data.s_decode_tokens.v_depth = v_depth; - self->private_data.s_decode_tokens.v_expect = v_expect; - self->private_data.s_decode_tokens.v_expect_after_value = v_expect_after_value; - - goto exit; - exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + v_i = 0u; + while (v_i < 256u) { + self->private_data.f_probs_match_len_high[0u][v_i] = 1024u; + v_i += 1u; } - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + v_i = 0u; + while (v_i < 16u) { + v_j = 0u; + while (v_j < 8u) { + self->private_data.f_probs_longrep_len_low[v_i][v_j] = 1024u; + v_j += 1u; + } + v_i += 1u; } - - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; + v_i = 0u; + while (v_i < 16u) { + v_j = 0u; + while (v_j < 8u) { + self->private_data.f_probs_longrep_len_mid[v_i][v_j] = 1024u; + v_j += 1u; + } + v_i += 1u; } - return status; + v_i = 0u; + while (v_i < 256u) { + self->private_data.f_probs_longrep_len_high[0u][v_i] = 1024u; + v_i += 1u; + } + v_i = 0u; + while (v_i < 4u) { + v_j = 0u; + while (v_j < 64u) { + self->private_data.f_probs_slot[v_i][v_j] = 1024u; + v_j += 1u; + } + v_i += 1u; + } + v_i = 0u; + while (v_i < 128u) { + self->private_data.f_probs_small_dist[v_i] = 1024u; + v_i += 1u; + } + v_i = 0u; + while (v_i < 16u) { + self->private_data.f_probs_large_dist[v_i] = 1024u; + v_i += 1u; + } + v_i = 0u; + while (v_i < 16u) { + v_j = 0u; + while (v_j < 768u) { + self->private_data.f_probs_lit[v_i][v_j] = 1024u; + v_j += 1u; + } + v_i += 1u; + } + self->private_impl.f_stashed_state = 0u; + self->private_impl.f_stashed_rep0 = 0u; + self->private_impl.f_stashed_rep1 = 0u; + self->private_impl.f_stashed_rep2 = 0u; + self->private_impl.f_stashed_rep3 = 0u; + return wuffs_base__make_empty_struct(); } -// -------- func json.decoder.decode_number +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZMA) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZIP) + +// ---------------- Status Codes Implementations + +const char wuffs_lzip__error__bad_checksum[] = "#lzip: bad checksum"; +const char wuffs_lzip__error__bad_footer[] = "#lzip: bad footer"; +const char wuffs_lzip__error__bad_header[] = "#lzip: bad header"; +const char wuffs_lzip__error__truncated_input[] = "#lzip: truncated input"; + +// ---------------- Private Consts + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_json__decoder__decode_number( - wuffs_json__decoder* self, - wuffs_base__io_buffer* a_src) { - uint8_t v_c = 0; - uint32_t v_n = 0; - uint32_t v_floating_point = 0; +static wuffs_base__status +wuffs_lzip__decoder__do_transform_io( + wuffs_lzip__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; +// ---------------- VTables + +const wuffs_base__io_transformer__func_ptrs +wuffs_lzip__decoder__func_ptrs_for__wuffs_base__io_transformer = { + (wuffs_base__optional_u63(*)(const void*))(&wuffs_lzip__decoder__dst_history_retain_length), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_lzip__decoder__get_quirk), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_lzip__decoder__set_quirk), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__io_buffer*, + wuffs_base__slice_u8))(&wuffs_lzip__decoder__transform_io), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_lzip__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_lzip__decoder__initialize( + wuffs_lzip__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); } - do { - v_n = 0u; - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if ( ! (a_src && a_src->meta.closed)) { - v_n |= 768u; - } - break; - } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - if (v_c != 45u) { - } else { - v_n += 1u; - iop_a_src += 1u; - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if ( ! (a_src && a_src->meta.closed)) { - v_n |= 768u; - } - v_n |= 256u; - break; - } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - } - if (v_c == 48u) { - v_n += 1u; - iop_a_src += 1u; - } else { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - v_n = wuffs_json__decoder__decode_digits(self, a_src, v_n); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (v_n > 99u) { - break; - } - } - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if ( ! (a_src && a_src->meta.closed)) { - v_n |= 768u; - } - break; - } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - if (v_c != 46u) { - } else { - if (v_n >= 99u) { - v_n |= 512u; - break; - } - v_n += 1u; - iop_a_src += 1u; - v_floating_point = 128u; - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - v_n = wuffs_json__decoder__decode_digits(self, a_src, v_n); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (v_n > 99u) { - break; - } - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if ( ! (a_src && a_src->meta.closed)) { - v_n |= 768u; - } - break; - } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - } - if ((v_c != 69u) && (v_c != 101u)) { - break; - } - if (v_n >= 99u) { - v_n |= 512u; - break; - } - v_n += 1u; - iop_a_src += 1u; - v_floating_point = 128u; - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if ( ! (a_src && a_src->meta.closed)) { - v_n |= 768u; - } - v_n |= 256u; - break; + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - if ((v_c != 43u) && (v_c != 45u)) { +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; } else { - if (v_n >= 99u) { - v_n |= 512u; - break; - } - v_n += 1u; - iop_a_src += 1u; + memset(&(self->private_impl), 0, sizeof(self->private_impl)); } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + { + wuffs_base__status z = wuffs_crc32__ieee_hasher__initialize( + &self->private_data.f_crc32, sizeof(self->private_data.f_crc32), WUFFS_VERSION, options); + if (z.repr) { + return z; } - v_n = wuffs_json__decoder__decode_digits(self, a_src, v_n); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + { + wuffs_base__status z = wuffs_lzma__decoder__initialize( + &self->private_data.f_lzma, sizeof(self->private_data.f_lzma), WUFFS_VERSION, options); + if (z.repr) { + return z; } - } while (0); - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - return (v_n | v_floating_point); + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = + wuffs_base__io_transformer__vtable_name; + self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = + (const void*)(&wuffs_lzip__decoder__func_ptrs_for__wuffs_base__io_transformer); + return wuffs_base__make_status(NULL); } -// -------- func json.decoder.decode_digits +wuffs_lzip__decoder* +wuffs_lzip__decoder__alloc(void) { + wuffs_lzip__decoder* x = + (wuffs_lzip__decoder*)(calloc(1, sizeof(wuffs_lzip__decoder))); + if (!x) { + return NULL; + } + if (wuffs_lzip__decoder__initialize( + x, sizeof(wuffs_lzip__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_lzip__decoder(void) { + return sizeof(wuffs_lzip__decoder); +} + +// ---------------- Function Implementations + +// -------- func lzip.decoder.get_quirk WUFFS_BASE__GENERATED_C_CODE -static uint32_t -wuffs_json__decoder__decode_digits( - wuffs_json__decoder* self, - wuffs_base__io_buffer* a_src, - uint32_t a_n) { - uint8_t v_c = 0; - uint32_t v_n = 0; +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_lzip__decoder__get_quirk( + const wuffs_lzip__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; + if ((a_key == 1u) && self->private_impl.f_ignore_checksum) { + return 1u; } + return 0u; +} - v_n = a_n; - while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if ( ! (a_src && a_src->meta.closed)) { - v_n |= 768u; - } - break; - } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - if (0u == WUFFS_JSON__LUT_DECIMAL_DIGITS[v_c]) { - break; - } - if (v_n >= 99u) { - v_n |= 512u; - break; - } - v_n += 1u; - iop_a_src += 1u; +// -------- func lzip.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_lzip__decoder__set_quirk( + wuffs_lzip__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); } - if (v_n == a_n) { - v_n |= 256u; + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); } - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + + if (a_key == 1u) { + self->private_impl.f_ignore_checksum = (a_value > 0u); + return wuffs_base__make_status(NULL); } - return v_n; + return wuffs_base__make_status(wuffs_base__error__unsupported_option); } -// -------- func json.decoder.decode_leading +// -------- func lzip.decoder.dst_history_retain_length WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_json__decoder__decode_leading( - wuffs_json__decoder* self, - wuffs_base__token_buffer* a_dst, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_lzip__decoder__dst_history_retain_length( + const wuffs_lzip__decoder* self) { + if (!self) { + return wuffs_base__utility__make_optional_u63(false, 0u); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__make_optional_u63(false, 0u); + } - uint8_t v_c = 0; - uint32_t v_u = 0; + return wuffs_lzma__decoder__dst_history_retain_length(&self->private_data.f_lzma); +} - wuffs_base__token* iop_a_dst = NULL; - wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; - } +// -------- func lzip.decoder.workbuf_len + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_lzip__decoder__workbuf_len( + const wuffs_lzip__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); } - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); } - uint32_t coro_susp_point = self->private_impl.p_decode_leading; + return wuffs_lzma__decoder__workbuf_len(&self->private_data.f_lzma); +} + +// -------- func lzip.decoder.transform_io + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_lzip__decoder__transform_io( + wuffs_lzip__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_transform_io; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - self->private_impl.f_allow_leading_ars = self->private_impl.f_quirks[15u]; - self->private_impl.f_allow_leading_ubom = self->private_impl.f_quirks[16u]; - while (self->private_impl.f_allow_leading_ars || self->private_impl.f_allow_leading_ubom) { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - continue; - } - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if (a_src && a_src->meta.closed) { - break; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - continue; + while (true) { + { + wuffs_base__status t_0 = wuffs_lzip__decoder__do_transform_io(self, a_dst, a_src, a_workbuf); + v_status = t_0; } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - if ((v_c == 30u) && self->private_impl.f_allow_leading_ars) { - self->private_impl.f_allow_leading_ars = false; - iop_a_src += 1u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - continue; - } else if ((v_c == 239u) && self->private_impl.f_allow_leading_ubom) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 3u) { - if (a_src && a_src->meta.closed) { - break; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); - continue; - } - v_u = ((uint32_t)(wuffs_base__peek_u24le__no_bounds_check(iop_a_src))); - if (v_u == 12565487u) { - self->private_impl.f_allow_leading_ubom = false; - iop_a_src += 3u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(3u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - continue; - } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_lzip__error__truncated_input); + goto exit; } - break; + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } ok: - self->private_impl.p_decode_leading = 0; + self->private_impl.p_transform_io = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_leading = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; goto exit; exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; } - return status; } -// -------- func json.decoder.decode_comment +// -------- func lzip.decoder.do_transform_io WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_json__decoder__decode_comment( - wuffs_json__decoder* self, - wuffs_base__token_buffer* a_dst, - wuffs_base__io_buffer* a_src) { +wuffs_lzip__decoder__do_transform_io( + wuffs_lzip__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; - uint16_t v_c2 = 0; - uint32_t v_length = 0; + uint8_t v_c8 = 0; + uint32_t v_c32 = 0; + uint64_t v_c64 = 0; + uint64_t v_dmark = 0; + uint64_t v_smark = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint32_t v_checksum_want = 0; + uint32_t v_checksum_have = 0; + uint64_t v_size_want = 0; - wuffs_base__token* iop_a_dst = NULL; - wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; if (a_dst && a_dst->data.ptr) { io0_a_dst = a_dst->data.ptr; io1_a_dst = io0_a_dst + a_dst->meta.wi; @@ -50398,174 +60726,570 @@ wuffs_json__decoder__decode_comment( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_comment; + uint32_t coro_susp_point = self->private_impl.p_do_transform_io; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - self->private_impl.f_comment_type = 0u; - while ((((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) || (((uint64_t)(io2_a_src - iop_a_src)) <= 1u)) { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - continue; + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint64_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 5)) { + t_0 = ((uint64_t)(wuffs_base__peek_u40le__no_bounds_check(iop_a_src))); + iop_a_src += 5; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 32) { + t_0 = ((uint64_t)(*scratch)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; + } + } + v_c64 = t_0; } - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(NULL); + if (v_c64 != 5641951820u) { + status = wuffs_base__make_status(wuffs_lzip__error__bad_header); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + v_status = wuffs_lzma__decoder__set_quirk(&self->private_data.f_lzma, 1290294273u, (1u | (((uint64_t)(v_c8)) << 8u))); + if ( ! wuffs_base__status__is_ok(&v_status)) { + if (v_status.repr == wuffs_base__error__bad_argument) { + status = wuffs_base__make_status(wuffs_lzip__error__bad_header); + goto exit; + } + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } goto ok; } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - } - v_c2 = wuffs_base__peek_u16le__no_bounds_check(iop_a_src); - if ((v_c2 == 10799u) && self->private_impl.f_quirks[11u]) { - iop_a_src += 2u; - v_length = 2u; + self->private_impl.f_ssize_have = 0u; + self->private_impl.f_dsize_have = 0u; + wuffs_lzma__decoder__set_quirk(&self->private_data.f_lzma, 1290294272u, 1u); while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) <= 1u) { - if (v_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(v_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + v_dmark = ((uint64_t)(iop_a_dst - io0_a_dst)); + v_smark = ((uint64_t)(iop_a_src - io0_a_src)); + { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); } - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_json__error__bad_input); - goto exit; + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); - while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); + wuffs_base__status t_2 = wuffs_lzma__decoder__transform_io(&self->private_data.f_lzma, a_dst, a_src, a_workbuf); + v_status = t_2; + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; } - v_length = 0u; - continue; } - v_c2 = wuffs_base__peek_u16le__no_bounds_check(iop_a_src); - if (v_c2 == 12074u) { - iop_a_src += 2u; - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)((v_length + 2u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - self->private_impl.f_comment_type = 1u; - status = wuffs_base__make_status(NULL); - goto ok; + self->private_impl.f_ssize_have += wuffs_private_impl__io__count_since(v_smark, ((uint64_t)(iop_a_src - io0_a_src))); + self->private_impl.f_dsize_have += wuffs_private_impl__io__count_since(v_dmark, ((uint64_t)(iop_a_dst - io0_a_dst))); + if ( ! self->private_impl.f_ignore_checksum) { + wuffs_crc32__ieee_hasher__update(&self->private_data.f_crc32, wuffs_private_impl__io__since(v_dmark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); } - iop_a_src += 1u; - if (v_length >= 65533u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(2u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)((v_length + 1u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + uint32_t t_3; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_3 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_3 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_3; + if (num_bits_3 == 24) { + t_3 = ((uint32_t)(*scratch)); + break; + } + num_bits_3 += 8u; + *scratch |= ((uint64_t)(num_bits_3)) << 56; } - v_length = 0u; - continue; } - v_length += 1u; + v_checksum_want = t_3; } - } else if ((v_c2 == 12079u) && self->private_impl.f_quirks[12u]) { - iop_a_src += 2u; - v_length = 2u; - while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if (a_src && a_src->meta.closed) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(v_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - self->private_impl.f_comment_type = 2u; - status = wuffs_base__make_status(NULL); - goto ok; - } else if (v_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)(v_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); + if ( ! self->private_impl.f_ignore_checksum) { + v_checksum_have = wuffs_crc32__ieee_hasher__checksum_u32(&self->private_data.f_crc32); + if (v_checksum_have != v_checksum_want) { + status = wuffs_base__make_status(wuffs_lzip__error__bad_checksum); + goto exit; + } + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + uint64_t t_4; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_4 = wuffs_base__peek_u64le__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_4 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_4; + if (num_bits_4 == 56) { + t_4 = ((uint64_t)(*scratch)); + break; + } + num_bits_4 += 8u; + *scratch |= ((uint64_t)(num_bits_4)) << 56; } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); - while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); + } + v_size_want = t_4; + } + if (self->private_impl.f_dsize_have != v_size_want) { + status = wuffs_base__make_status(wuffs_lzip__error__bad_footer); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + uint64_t t_5; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_5 = wuffs_base__peek_u64le__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_5 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_5; + if (num_bits_5 == 56) { + t_5 = ((uint64_t)(*scratch)); + break; + } + num_bits_5 += 8u; + *scratch |= ((uint64_t)(num_bits_5)) << 56; } - v_length = 0u; - continue; } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - if (v_c == 10u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(v_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - self->private_impl.f_comment_type = 2u; - status = wuffs_base__make_status(NULL); - goto ok; + v_size_want = t_5; + } + if ((v_size_want < 26u) || (2251799813685248u < v_size_want)) { + status = wuffs_base__make_status(wuffs_lzip__error__bad_footer); + goto exit; + } else if (self->private_impl.f_ssize_have != (v_size_want - 26u)) { + status = wuffs_base__make_status(wuffs_lzip__error__bad_footer); + goto exit; + } + while (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { + if (a_src && a_src->meta.closed) { + goto label__outer__break; } - iop_a_src += 1u; - if (v_length >= 65533u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(1u)) << WUFFS_BASE__TOKEN__CONTINUED__SHIFT) | - (((uint64_t)((v_length + 1u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - while (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); - } - v_length = 0u; - continue; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(11); + } + v_c32 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + if (v_c32 != 1346984524u) { + break; + } + wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, + sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + wuffs_private_impl__ignore_status(wuffs_lzma__decoder__initialize(&self->private_data.f_lzma, + sizeof (wuffs_lzma__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + } + label__outer__break:; + + ok: + self->private_impl.p_do_transform_io = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZIP) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZW) + +// ---------------- Status Codes Implementations + +const char wuffs_lzw__error__bad_code[] = "#lzw: bad code"; +const char wuffs_lzw__error__truncated_input[] = "#lzw: truncated input"; +const char wuffs_lzw__error__internal_error_inconsistent_i_o[] = "#lzw: internal error: inconsistent I/O"; + +// ---------------- Private Consts + +#define WUFFS_LZW__QUIRKS_BASE 1290672128u + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_lzw__decoder__read_from( + wuffs_lzw__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_lzw__decoder__write_to( + wuffs_lzw__decoder* self, + wuffs_base__io_buffer* a_dst); + +// ---------------- VTables + +const wuffs_base__io_transformer__func_ptrs +wuffs_lzw__decoder__func_ptrs_for__wuffs_base__io_transformer = { + (wuffs_base__optional_u63(*)(const void*))(&wuffs_lzw__decoder__dst_history_retain_length), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_lzw__decoder__get_quirk), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_lzw__decoder__set_quirk), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__io_buffer*, + wuffs_base__slice_u8))(&wuffs_lzw__decoder__transform_io), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_lzw__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_lzw__decoder__initialize( + wuffs_lzw__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } + } + + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = + wuffs_base__io_transformer__vtable_name; + self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = + (const void*)(&wuffs_lzw__decoder__func_ptrs_for__wuffs_base__io_transformer); + return wuffs_base__make_status(NULL); +} + +wuffs_lzw__decoder* +wuffs_lzw__decoder__alloc(void) { + wuffs_lzw__decoder* x = + (wuffs_lzw__decoder*)(calloc(1, sizeof(wuffs_lzw__decoder))); + if (!x) { + return NULL; + } + if (wuffs_lzw__decoder__initialize( + x, sizeof(wuffs_lzw__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_lzw__decoder(void) { + return sizeof(wuffs_lzw__decoder); +} + +// ---------------- Function Implementations + +// -------- func lzw.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_lzw__decoder__get_quirk( + const wuffs_lzw__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (a_key == 1290672128u) { + return ((uint64_t)(self->private_impl.f_pending_literal_width_plus_one)); + } + return 0u; +} + +// -------- func lzw.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_lzw__decoder__set_quirk( + wuffs_lzw__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + if (a_key == 1290672128u) { + if (a_value > 9u) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + self->private_impl.f_pending_literal_width_plus_one = ((uint32_t)(a_value)); + return wuffs_base__make_status(NULL); + } + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} + +// -------- func lzw.decoder.dst_history_retain_length + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_lzw__decoder__dst_history_retain_length( + const wuffs_lzw__decoder* self) { + if (!self) { + return wuffs_base__utility__make_optional_u63(false, 0u); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__make_optional_u63(false, 0u); + } + + return wuffs_base__utility__make_optional_u63(true, 0u); +} + +// -------- func lzw.decoder.workbuf_len + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_lzw__decoder__workbuf_len( + const wuffs_lzw__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + return wuffs_base__utility__make_range_ii_u64(0u, 0u); +} + +// -------- func lzw.decoder.transform_io + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_lzw__decoder__transform_io( + wuffs_lzw__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_i = 0; + + uint32_t coro_susp_point = self->private_impl.p_transform_io; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + self->private_impl.f_literal_width = 8u; + if (self->private_impl.f_pending_literal_width_plus_one > 0u) { + self->private_impl.f_literal_width = (self->private_impl.f_pending_literal_width_plus_one - 1u); + } + self->private_impl.f_clear_code = (((uint32_t)(1u)) << self->private_impl.f_literal_width); + self->private_impl.f_end_code = (self->private_impl.f_clear_code + 1u); + self->private_impl.f_save_code = self->private_impl.f_end_code; + self->private_impl.f_prev_code = self->private_impl.f_end_code; + self->private_impl.f_width = (self->private_impl.f_literal_width + 1u); + self->private_impl.f_bits = 0u; + self->private_impl.f_n_bits = 0u; + self->private_impl.f_output_ri = 0u; + self->private_impl.f_output_wi = 0u; + v_i = 0u; + while (v_i < self->private_impl.f_clear_code) { + self->private_data.f_lm1s[v_i] = 0u; + self->private_data.f_suffixes[v_i][0u] = ((uint8_t)(v_i)); + v_i += 1u; + } + while (true) { + wuffs_lzw__decoder__read_from(self, a_src); + if (self->private_impl.f_output_wi > 0u) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_lzw__decoder__write_to(self, a_dst); + if (status.repr) { + goto suspend; } - v_length += 1u; + } + if (self->private_impl.f_read_from_return_value == 0u) { + break; + } else if (self->private_impl.f_read_from_return_value == 1u) { + continue; + } else if (self->private_impl.f_read_from_return_value == 2u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + } else if (self->private_impl.f_read_from_return_value == 3u) { + status = wuffs_base__make_status(wuffs_lzw__error__truncated_input); + goto exit; + } else if (self->private_impl.f_read_from_return_value == 4u) { + status = wuffs_base__make_status(wuffs_lzw__error__bad_code); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_lzw__error__internal_error_inconsistent_i_o); + goto exit; } } ok: - self->private_impl.p_decode_comment = 0; + self->private_impl.p_transform_io = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_comment = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; goto exit; exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; } - return status; } -// -------- func json.decoder.decode_inf_nan +// -------- func lzw.decoder.read_from WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_json__decoder__decode_inf_nan( - wuffs_json__decoder* self, - wuffs_base__token_buffer* a_dst, +static wuffs_base__empty_struct +wuffs_lzw__decoder__read_from( + wuffs_lzw__decoder* self, wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint32_t v_c4 = 0; - uint32_t v_neg = 0; + uint32_t v_clear_code = 0; + uint32_t v_end_code = 0; + uint32_t v_save_code = 0; + uint32_t v_prev_code = 0; + uint32_t v_width = 0; + uint32_t v_bits = 0; + uint32_t v_n_bits = 0; + uint32_t v_output_wi = 0; + uint32_t v_code = 0; + uint32_t v_c = 0; + uint32_t v_o = 0; + uint32_t v_steps = 0; + uint8_t v_first_byte = 0; + uint16_t v_lm1_b = 0; + uint16_t v_lm1_a = 0; - wuffs_base__token* iop_a_dst = NULL; - wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; - } - } const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -50577,143 +61301,169 @@ wuffs_json__decoder__decode_inf_nan( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_inf_nan; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - while (true) { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - continue; - } - if (((uint64_t)(io2_a_src - iop_a_src)) <= 2u) { + v_clear_code = self->private_impl.f_clear_code; + v_end_code = self->private_impl.f_end_code; + v_save_code = self->private_impl.f_save_code; + v_prev_code = self->private_impl.f_prev_code; + v_width = self->private_impl.f_width; + v_bits = self->private_impl.f_bits; + v_n_bits = self->private_impl.f_n_bits; + v_output_wi = self->private_impl.f_output_wi; + while (true) { + if (v_n_bits < v_width) { + if (((uint64_t)(io2_a_src - iop_a_src)) >= 4u) { + v_bits |= ((uint32_t)(wuffs_base__peek_u32le__no_bounds_check(iop_a_src) << v_n_bits)); + iop_a_src += ((31u - v_n_bits) >> 3u); + v_n_bits |= 24u; + } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_json__error__bad_input); - goto exit; + self->private_impl.f_read_from_return_value = 3u; + } else { + self->private_impl.f_read_from_return_value = 2u; } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - continue; - } - v_c4 = ((uint32_t)(wuffs_base__peek_u24le__no_bounds_check(iop_a_src))); - if ((v_c4 | 2105376u) == 6712937u) { - if (((uint64_t)(io2_a_src - iop_a_src)) > 7u) { - if ((wuffs_base__peek_u64le__no_bounds_check(iop_a_src) | 2314885530818453536u) == 8751735898823356009u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(10485792u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(8u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 8u; - status = wuffs_base__make_status(NULL); - goto ok; + break; + } else { + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + if (v_n_bits >= v_width) { + } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + if (a_src && a_src->meta.closed) { + self->private_impl.f_read_from_return_value = 3u; + } else { + self->private_impl.f_read_from_return_value = 2u; + } + break; + } else { + v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); + iop_a_src += 1u; + v_n_bits += 8u; + if (v_n_bits < v_width) { + self->private_impl.f_read_from_return_value = 5u; + break; } - } else if ( ! (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); - continue; } - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(10485792u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(3u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 3u; - status = wuffs_base__make_status(NULL); - goto ok; - } else if ((v_c4 | 2105376u) == 7233902u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(10485888u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(3u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 3u; - status = wuffs_base__make_status(NULL); - goto ok; - } else if ((v_c4 & 255u) == 43u) { - v_neg = 0u; - } else if ((v_c4 & 255u) == 45u) { - v_neg = 1u; - } else { - status = wuffs_base__make_status(wuffs_json__error__bad_input); - goto exit; } - if (((uint64_t)(io2_a_src - iop_a_src)) <= 3u) { - if (a_src && a_src->meta.closed) { - status = wuffs_base__make_status(wuffs_json__error__bad_input); - goto exit; + } + v_code = ((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(v_width)); + v_bits >>= v_width; + v_n_bits -= v_width; + if (v_code < v_clear_code) { + self->private_data.f_output[v_output_wi] = ((uint8_t)(v_code)); + v_output_wi = ((v_output_wi + 1u) & 8191u); + if (v_save_code <= 4095u) { + v_lm1_a = ((uint16_t)(((uint16_t)(self->private_data.f_lm1s[v_prev_code] + 1u)) & 4095u)); + self->private_data.f_lm1s[v_save_code] = v_lm1_a; + if (((uint16_t)(v_lm1_a % 8u)) != 0u) { + self->private_impl.f_prefixes[v_save_code] = self->private_impl.f_prefixes[v_prev_code]; + memcpy(self->private_data.f_suffixes[v_save_code],self->private_data.f_suffixes[v_prev_code], sizeof(self->private_data.f_suffixes[v_save_code])); + self->private_data.f_suffixes[v_save_code][((uint16_t)(v_lm1_a % 8u))] = ((uint8_t)(v_code)); + } else { + self->private_impl.f_prefixes[v_save_code] = ((uint16_t)(v_prev_code)); + self->private_data.f_suffixes[v_save_code][0u] = ((uint8_t)(v_code)); } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); - continue; + v_save_code += 1u; + if (v_width < 12u) { + v_width += (1u & (v_save_code >> v_width)); + } + v_prev_code = v_code; } - v_c4 = (wuffs_base__peek_u32le__no_bounds_check(iop_a_src) >> 8u); - if ((v_c4 | 2105376u) == 6712937u) { - if (((uint64_t)(io2_a_src - iop_a_src)) > 8u) { - if ((wuffs_base__peek_u64le__no_bounds_check(iop_a_src + 1u) | 2314885530818453536u) == 8751735898823356009u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((10485760u | (((uint32_t)(32u)) >> v_neg)))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(9u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 9u; - status = wuffs_base__make_status(NULL); - goto ok; - } - } else if ( ! (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); - continue; + } else if (v_code <= v_end_code) { + if (v_code == v_end_code) { + self->private_impl.f_read_from_return_value = 0u; + break; + } + v_save_code = v_end_code; + v_prev_code = v_end_code; + v_width = (self->private_impl.f_literal_width + 1u); + } else if (v_code <= v_save_code) { + v_c = v_code; + if (v_code == v_save_code) { + v_c = v_prev_code; + } + v_o = ((v_output_wi + (((uint32_t)(self->private_data.f_lm1s[v_c])) & 4294967288u)) & 8191u); + v_output_wi = ((v_output_wi + 1u + ((uint32_t)(self->private_data.f_lm1s[v_c]))) & 8191u); + v_steps = (((uint32_t)(self->private_data.f_lm1s[v_c])) >> 3u); + while (true) { + memcpy((self->private_data.f_output)+(v_o), (self->private_data.f_suffixes[v_c]), 8u); + if (v_steps <= 0u) { + break; } - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((10485760u | (((uint32_t)(32u)) >> v_neg)))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 4u; - status = wuffs_base__make_status(NULL); - goto ok; - } else if ((v_c4 | 2105376u) == 7233902u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)((10485760u | (((uint32_t)(128u)) >> v_neg)))) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(4u)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - iop_a_src += 4u; - status = wuffs_base__make_status(NULL); - goto ok; + v_steps -= 1u; + v_o = (((uint32_t)(v_o - 8u)) & 8191u); + v_c = ((uint32_t)(self->private_impl.f_prefixes[v_c])); } - status = wuffs_base__make_status(wuffs_json__error__bad_input); - goto exit; + v_first_byte = self->private_data.f_suffixes[v_c][0u]; + if (v_code == v_save_code) { + self->private_data.f_output[v_output_wi] = v_first_byte; + v_output_wi = ((v_output_wi + 1u) & 8191u); + } + if (v_save_code <= 4095u) { + v_lm1_b = ((uint16_t)(((uint16_t)(self->private_data.f_lm1s[v_prev_code] + 1u)) & 4095u)); + self->private_data.f_lm1s[v_save_code] = v_lm1_b; + if (((uint16_t)(v_lm1_b % 8u)) != 0u) { + self->private_impl.f_prefixes[v_save_code] = self->private_impl.f_prefixes[v_prev_code]; + memcpy(self->private_data.f_suffixes[v_save_code],self->private_data.f_suffixes[v_prev_code], sizeof(self->private_data.f_suffixes[v_save_code])); + self->private_data.f_suffixes[v_save_code][((uint16_t)(v_lm1_b % 8u))] = v_first_byte; + } else { + self->private_impl.f_prefixes[v_save_code] = ((uint16_t)(v_prev_code)); + self->private_data.f_suffixes[v_save_code][0u] = ((uint8_t)(v_first_byte)); + } + v_save_code += 1u; + if (v_width < 12u) { + v_width += (1u & (v_save_code >> v_width)); + } + v_prev_code = v_code; + } + } else { + self->private_impl.f_read_from_return_value = 4u; + break; + } + if (v_output_wi > 4095u) { + self->private_impl.f_read_from_return_value = 1u; + break; } - - ok: - self->private_impl.p_decode_inf_nan = 0; - goto exit; } - - goto suspend; - suspend: - self->private_impl.p_decode_inf_nan = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - - goto exit; - exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + if (self->private_impl.f_read_from_return_value != 2u) { + while (v_n_bits >= 8u) { + v_n_bits -= 8u; + if (iop_a_src > io1_a_src) { + iop_a_src--; + } else { + self->private_impl.f_read_from_return_value = 5u; + break; + } + } } + self->private_impl.f_save_code = v_save_code; + self->private_impl.f_prev_code = v_prev_code; + self->private_impl.f_width = v_width; + self->private_impl.f_bits = v_bits; + self->private_impl.f_n_bits = v_n_bits; + self->private_impl.f_output_wi = v_output_wi; if (a_src && a_src->data.ptr) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - return status; + return wuffs_base__make_empty_struct(); } -// -------- func json.decoder.decode_trailer +// -------- func lzw.decoder.write_to WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_json__decoder__decode_trailer( - wuffs_json__decoder* self, - wuffs_base__token_buffer* a_dst, - wuffs_base__io_buffer* a_src) { +wuffs_lzw__decoder__write_to( + wuffs_lzw__decoder* self, + wuffs_base__io_buffer* a_dst) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; - uint32_t v_whitespace_length = 0; + wuffs_base__slice_u8 v_s = {0}; + uint64_t v_n = 0; - wuffs_base__token* iop_a_dst = NULL; - wuffs_base__token* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__token* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - wuffs_base__token* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; if (a_dst && a_dst->data.ptr) { io0_a_dst = a_dst->data.ptr; io1_a_dst = io0_a_dst + a_dst->meta.wi; @@ -50723,168 +61473,87 @@ wuffs_json__decoder__decode_trailer( io2_a_dst = iop_a_dst; } } - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } - uint32_t coro_susp_point = self->private_impl.p_decode_trailer; + uint32_t coro_susp_point = self->private_impl.p_write_to; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_quirks[18u]) { - self->private_impl.f_trailer_stop = 10u; - } else { - self->private_impl.f_trailer_stop = 0u; - } - label__outer__continue:; - while (true) { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - continue; + while (self->private_impl.f_output_wi > 0u) { + if (self->private_impl.f_output_ri > self->private_impl.f_output_wi) { + status = wuffs_base__make_status(wuffs_lzw__error__internal_error_inconsistent_i_o); + goto exit; } - v_whitespace_length = 0u; - while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if (v_whitespace_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(v_whitespace_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - } - if (a_src && a_src->meta.closed) { - goto label__outer__break; - } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - goto label__outer__continue; - } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - if (WUFFS_JSON__LUT_CLASSES[v_c] != 0u) { - if (v_whitespace_length > 0u) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)(v_whitespace_length)) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - } - if (self->private_impl.f_trailer_stop > 0u) { - status = wuffs_base__make_status(wuffs_json__error__bad_input); - goto exit; - } - if (a_dst) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - status = wuffs_json__decoder__decode_comment(self, a_dst, a_src); - if (a_dst) { - iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; - } - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - if (self->private_impl.f_comment_type > 0u) { - goto label__outer__continue; - } - status = wuffs_base__make_status(NULL); - goto ok; - } - iop_a_src += 1u; - if ((v_whitespace_length >= 65534u) || (v_c == self->private_impl.f_trailer_stop)) { - *iop_a_dst++ = wuffs_base__make_token( - (((uint64_t)(0u)) << WUFFS_BASE__TOKEN__VALUE_MINOR__SHIFT) | - (((uint64_t)((v_whitespace_length + 1u))) << WUFFS_BASE__TOKEN__LENGTH__SHIFT)); - if (v_c == self->private_impl.f_trailer_stop) { - status = wuffs_base__make_status(NULL); - goto ok; - } - goto label__outer__continue; - } - v_whitespace_length += 1u; + v_s = wuffs_base__make_slice_u8_ij(self->private_data.f_output, + self->private_impl.f_output_ri, + self->private_impl.f_output_wi); + v_n = wuffs_private_impl__io_writer__copy_from_slice(&iop_a_dst, io2_a_dst,v_s); + if (v_n == ((uint64_t)(v_s.len))) { + self->private_impl.f_output_ri = 0u; + self->private_impl.f_output_wi = 0u; + status = wuffs_base__make_status(NULL); + goto ok; } + self->private_impl.f_output_ri = (((uint32_t)(self->private_impl.f_output_ri + ((uint32_t)(v_n)))) & 8191u); + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } - label__outer__break:; ok: - self->private_impl.p_decode_trailer = 0; + self->private_impl.p_write_to = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_trailer = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_write_to = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: if (a_dst && a_dst->data.ptr) { a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); } - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } return status; } -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__JSON) - -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZMA) - -// ---------------- Status Codes Implementations - -const char wuffs_lzma__error__bad_lzma2_header[] = "#lzma: bad LZMA2 header"; -const char wuffs_lzma__error__bad_bitstream_trailer[] = "#lzma: bad bitstream trailer"; -const char wuffs_lzma__error__bad_code[] = "#lzma: bad code"; -const char wuffs_lzma__error__bad_decoded_length[] = "#lzma: bad decoded length"; -const char wuffs_lzma__error__bad_distance[] = "#lzma: bad distance"; -const char wuffs_lzma__error__bad_header[] = "#lzma: bad header"; -const char wuffs_lzma__error__truncated_input[] = "#lzma: truncated input"; -const char wuffs_lzma__error__unsupported_decoded_length[] = "#lzma: unsupported decoded length"; -const char wuffs_lzma__error__unsupported_properties[] = "#lzma: unsupported properties"; -const char wuffs_lzma__error__todo[] = "#lzma: TODO"; - -// ---------------- Private Consts +// -------- func lzw.decoder.flush -static const uint8_t -WUFFS_LZMA__STATE_TRANSITION_LITERAL[12] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0u, 0u, 0u, 0u, 1u, 2u, 3u, 4u, - 5u, 6u, 4u, 5u, -}; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__slice_u8 +wuffs_lzw__decoder__flush( + wuffs_lzw__decoder* self) { + if (!self) { + return wuffs_base__empty_slice_u8(); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__empty_slice_u8(); + } -static const uint8_t -WUFFS_LZMA__STATE_TRANSITION_MATCH[12] WUFFS_BASE__POTENTIALLY_UNUSED = { - 7u, 7u, 7u, 7u, 7u, 7u, 7u, 10u, - 10u, 10u, 10u, 10u, -}; + uint32_t v_ri = 0; + uint32_t v_wi = 0; -static const uint8_t -WUFFS_LZMA__STATE_TRANSITION_LONGREP[12] WUFFS_BASE__POTENTIALLY_UNUSED = { - 8u, 8u, 8u, 8u, 8u, 8u, 8u, 11u, - 11u, 11u, 11u, 11u, -}; + v_ri = self->private_impl.f_output_ri; + v_wi = self->private_impl.f_output_wi; + self->private_impl.f_output_ri = 0u; + self->private_impl.f_output_wi = 0u; + if (v_ri <= v_wi) { + return wuffs_base__make_slice_u8_ij(self->private_data.f_output, v_ri, v_wi); + } + return wuffs_base__make_slice_u8(self->private_data.f_output, 0); +} -static const uint8_t -WUFFS_LZMA__STATE_TRANSITION_SHORTREP[12] WUFFS_BASE__POTENTIALLY_UNUSED = { - 9u, 9u, 9u, 9u, 9u, 9u, 9u, 11u, - 11u, 11u, 11u, 11u, -}; +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZW) -static const uint8_t -WUFFS_LZMA__CLAMP_NO_MORE_THAN_3[8] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0u, 1u, 2u, 3u, 3u, 3u, 3u, 3u, -}; +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NETPBM) + +// ---------------- Status Codes Implementations + +const char wuffs_netpbm__error__bad_header[] = "#netpbm: bad header"; +const char wuffs_netpbm__error__truncated_input[] = "#netpbm: truncated input"; +const char wuffs_netpbm__error__unsupported_netpbm_file[] = "#netpbm: unsupported Netpbm file"; +const char wuffs_netpbm__note__internal_note_short_read[] = "@netpbm: internal note: short read"; -#define WUFFS_LZMA__QUIRKS_BASE 1348001792u +// ---------------- Private Consts // ---------------- Private Initializer Prototypes @@ -50892,52 +61561,78 @@ WUFFS_LZMA__CLAMP_NO_MORE_THAN_3[8] WUFFS_BASE__POTENTIALLY_UNUSED = { WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_lzma__decoder__decode_bitstream_slow( - wuffs_lzma__decoder* self, - wuffs_base__io_buffer* a_dst, +wuffs_netpbm__decoder__do_decode_image_config( + wuffs_netpbm__decoder* self, + wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_lzma__decoder__do_transform_io( - wuffs_lzma__decoder* self, - wuffs_base__io_buffer* a_dst, +wuffs_netpbm__decoder__do_decode_frame_config( + wuffs_netpbm__decoder* self, + wuffs_base__frame_config* a_dst, wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_lzma__decoder__decode_bitstream( - wuffs_lzma__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src); +wuffs_netpbm__decoder__do_decode_frame( + wuffs_netpbm__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_lzma__decoder__initialize_probs( - wuffs_lzma__decoder* self); +static wuffs_base__status +wuffs_netpbm__decoder__swizzle( + wuffs_netpbm__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src); // ---------------- VTables -const wuffs_base__io_transformer__func_ptrs -wuffs_lzma__decoder__func_ptrs_for__wuffs_base__io_transformer = { - (wuffs_base__optional_u63(*)(const void*))(&wuffs_lzma__decoder__dst_history_retain_length), +const wuffs_base__image_decoder__func_ptrs +wuffs_netpbm__decoder__func_ptrs_for__wuffs_base__image_decoder = { + (wuffs_base__status(*)(void*, + wuffs_base__pixel_buffer*, + wuffs_base__io_buffer*, + wuffs_base__pixel_blend, + wuffs_base__slice_u8, + wuffs_base__decode_frame_options*))(&wuffs_netpbm__decoder__decode_frame), + (wuffs_base__status(*)(void*, + wuffs_base__frame_config*, + wuffs_base__io_buffer*))(&wuffs_netpbm__decoder__decode_frame_config), + (wuffs_base__status(*)(void*, + wuffs_base__image_config*, + wuffs_base__io_buffer*))(&wuffs_netpbm__decoder__decode_image_config), + (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_netpbm__decoder__frame_dirty_rect), (uint64_t(*)(const void*, - uint32_t))(&wuffs_lzma__decoder__get_quirk), + uint32_t))(&wuffs_netpbm__decoder__get_quirk), + (uint32_t(*)(const void*))(&wuffs_netpbm__decoder__num_animation_loops), + (uint64_t(*)(const void*))(&wuffs_netpbm__decoder__num_decoded_frame_configs), + (uint64_t(*)(const void*))(&wuffs_netpbm__decoder__num_decoded_frames), + (wuffs_base__status(*)(void*, + uint64_t, + uint64_t))(&wuffs_netpbm__decoder__restart_frame), (wuffs_base__status(*)(void*, uint32_t, - uint64_t))(&wuffs_lzma__decoder__set_quirk), + uint64_t))(&wuffs_netpbm__decoder__set_quirk), + (wuffs_base__empty_struct(*)(void*, + uint32_t, + bool))(&wuffs_netpbm__decoder__set_report_metadata), (wuffs_base__status(*)(void*, wuffs_base__io_buffer*, - wuffs_base__io_buffer*, - wuffs_base__slice_u8))(&wuffs_lzma__decoder__transform_io), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_lzma__decoder__workbuf_len), + wuffs_base__more_information*, + wuffs_base__io_buffer*))(&wuffs_netpbm__decoder__tell_me_more), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_netpbm__decoder__workbuf_len), }; // ---------------- Initializer Implementations wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_lzma__decoder__initialize( - wuffs_lzma__decoder* self, +wuffs_netpbm__decoder__initialize( + wuffs_netpbm__decoder* self, size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options){ @@ -50975,22 +61670,22 @@ wuffs_lzma__decoder__initialize( } self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = - wuffs_base__io_transformer__vtable_name; - self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = - (const void*)(&wuffs_lzma__decoder__func_ptrs_for__wuffs_base__io_transformer); + self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = + wuffs_base__image_decoder__vtable_name; + self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = + (const void*)(&wuffs_netpbm__decoder__func_ptrs_for__wuffs_base__image_decoder); return wuffs_base__make_status(NULL); } -wuffs_lzma__decoder* -wuffs_lzma__decoder__alloc(void) { - wuffs_lzma__decoder* x = - (wuffs_lzma__decoder*)(calloc(sizeof(wuffs_lzma__decoder), 1)); +wuffs_netpbm__decoder* +wuffs_netpbm__decoder__alloc(void) { + wuffs_netpbm__decoder* x = + (wuffs_netpbm__decoder*)(calloc(1, sizeof(wuffs_netpbm__decoder))); if (!x) { return NULL; } - if (wuffs_lzma__decoder__initialize( - x, sizeof(wuffs_lzma__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + if (wuffs_netpbm__decoder__initialize( + x, sizeof(wuffs_netpbm__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { free(x); return NULL; } @@ -50998,72 +61693,130 @@ wuffs_lzma__decoder__alloc(void) { } size_t -sizeof__wuffs_lzma__decoder(void) { - return sizeof(wuffs_lzma__decoder); +sizeof__wuffs_netpbm__decoder(void) { + return sizeof(wuffs_netpbm__decoder); } // ---------------- Function Implementations -// -------- func lzma.decoder.decode_bitstream_slow +// -------- func netpbm.decoder.get_quirk WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_lzma__decoder__decode_bitstream_slow( - wuffs_lzma__decoder* self, - wuffs_base__io_buffer* a_dst, +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_netpbm__decoder__get_quirk( + const wuffs_netpbm__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return 0u; +} + +// -------- func netpbm.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_netpbm__decoder__set_quirk( + wuffs_netpbm__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} + +// -------- func netpbm.decoder.decode_image_config + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_netpbm__decoder__decode_image_config( + wuffs_netpbm__decoder* self, + wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c8 = 0; - uint32_t v_bits = 0; - uint32_t v_range = 0; - uint32_t v_state = 0; - uint32_t v_rep0 = 0; - uint32_t v_rep1 = 0; - uint32_t v_rep2 = 0; - uint32_t v_rep3 = 0; - uint32_t v_reptmp = 0; - uint32_t v_rep = 0; - uint64_t v_pos = 0; - uint32_t v_lc = 0; - uint64_t v_lp_mask = 0; - uint64_t v_pb_mask = 0; - uint32_t v_prob = 0; - uint32_t v_threshold = 0; - uint32_t v_tree_node = 0; - uint8_t v_prev_byte = 0; - uint8_t v_match_byte = 0; - uint32_t v_match_cusp = 0; - uint32_t v_match_bit = 0; - uint32_t v_len_state = 0; - uint32_t v_slot = 0; - uint32_t v_len = 0; - uint32_t v_num_extra_bits = 0; - uint32_t v_dist_extra_bits = 0; - uint32_t v_high_bit_was_on = 0; - uint32_t v_i = 0; - uint32_t v_index_ao00 = 0; - uint32_t v_index_ao41 = 0; - uint32_t v_index_lit = 0; - uint32_t v_index_len = 0; - uint32_t v_index_small_dist_base = 0; - uint32_t v_index_small_dist_extra = 0; - uint32_t v_index_small_dist = 0; - uint32_t v_index_large_dist = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint8_t* iop_a_dst = NULL; - uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; + uint32_t coro_susp_point = self->private_impl.p_decode_image_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_netpbm__decoder__do_decode_image_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_netpbm__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } + + ok: + self->private_impl.p_decode_image_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; } + return status; +} + +// -------- func netpbm.decoder.do_decode_image_config + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_netpbm__decoder__do_decode_image_config( + wuffs_netpbm__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint32_t v_n = 0; + const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -51075,38 +61828,14 @@ wuffs_lzma__decoder__decode_bitstream_slow( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_bitstream_slow; - if (coro_susp_point) { - v_bits = self->private_data.s_decode_bitstream_slow.v_bits; - v_range = self->private_data.s_decode_bitstream_slow.v_range; - v_state = self->private_data.s_decode_bitstream_slow.v_state; - v_rep0 = self->private_data.s_decode_bitstream_slow.v_rep0; - v_rep1 = self->private_data.s_decode_bitstream_slow.v_rep1; - v_rep2 = self->private_data.s_decode_bitstream_slow.v_rep2; - v_rep3 = self->private_data.s_decode_bitstream_slow.v_rep3; - v_rep = self->private_data.s_decode_bitstream_slow.v_rep; - v_pos = self->private_data.s_decode_bitstream_slow.v_pos; - v_lc = self->private_data.s_decode_bitstream_slow.v_lc; - v_lp_mask = self->private_data.s_decode_bitstream_slow.v_lp_mask; - v_pb_mask = self->private_data.s_decode_bitstream_slow.v_pb_mask; - v_tree_node = self->private_data.s_decode_bitstream_slow.v_tree_node; - v_prev_byte = self->private_data.s_decode_bitstream_slow.v_prev_byte; - v_match_byte = self->private_data.s_decode_bitstream_slow.v_match_byte; - v_len_state = self->private_data.s_decode_bitstream_slow.v_len_state; - v_slot = self->private_data.s_decode_bitstream_slow.v_slot; - v_len = self->private_data.s_decode_bitstream_slow.v_len; - v_num_extra_bits = self->private_data.s_decode_bitstream_slow.v_num_extra_bits; - v_dist_extra_bits = self->private_data.s_decode_bitstream_slow.v_dist_extra_bits; - v_i = self->private_data.s_decode_bitstream_slow.v_i; - v_index_lit = self->private_data.s_decode_bitstream_slow.v_index_lit; - v_index_len = self->private_data.s_decode_bitstream_slow.v_index_len; - v_index_small_dist_base = self->private_data.s_decode_bitstream_slow.v_index_small_dist_base; - v_index_small_dist_extra = self->private_data.s_decode_bitstream_slow.v_index_small_dist_extra; - v_index_large_dist = self->private_data.s_decode_bitstream_slow.v_index_large_dist; - } + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + if (self->private_impl.f_call_sequence != 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + goto exit; + } { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { @@ -51116,974 +61845,2091 @@ wuffs_lzma__decoder__decode_bitstream_slow( uint8_t t_0 = *iop_a_src++; v_c8 = t_0; } - if (v_c8 != 0u) { - status = wuffs_base__make_status(wuffs_lzma__error__bad_code); + if (v_c8 != 80u) { + status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); goto exit; } { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - uint32_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_1 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_bitstream_slow.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + if ((v_c8 < 49u) || (55u < v_c8)) { + status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); + goto exit; + } else if (v_c8 == 53u) { + self->private_impl.f_pixfmt = 536870920u; + } else if (v_c8 == 54u) { + self->private_impl.f_pixfmt = 2684356744u; + } else { + status = wuffs_base__make_status(wuffs_netpbm__error__unsupported_netpbm_file); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; + } + if (v_c8 != 10u) { + status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); + goto exit; + } + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_c8 = t_3; + } + if ((v_c8 == 32u) || (v_c8 == 9u)) { + continue; + } else if (v_c8 == 35u) { while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_4 = *iop_a_src++; + v_c8 = t_4; } - uint64_t* scratch = &self->private_data.s_decode_bitstream_slow.scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); - if (num_bits_1 == 24) { - t_1 = ((uint32_t)(*scratch >> 32)); + if (v_c8 == 10u) { break; } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)); } + continue; + } else if ((v_c8 < 48u) || (57u < v_c8)) { + status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); + goto exit; } - v_bits = t_1; + self->private_impl.f_width = ((uint32_t)(((uint8_t)(v_c8 - 48u)))); + break; } - if (v_bits == 4294967295u) { - status = wuffs_base__make_status(wuffs_lzma__error__bad_code); - goto exit; + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_5 = *iop_a_src++; + v_c8 = t_5; + } + if ((v_c8 == 32u) || (v_c8 == 9u)) { + break; + } else if ((v_c8 < 48u) || (57u < v_c8)) { + status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); + goto exit; + } + v_n = ((10u * self->private_impl.f_width) + ((uint32_t)(((uint8_t)(v_c8 - 48u))))); + if (v_n > 16777215u) { + status = wuffs_base__make_status(wuffs_netpbm__error__unsupported_netpbm_file); + goto exit; + } + self->private_impl.f_width = v_n; } - v_range = 4294967295u; - v_lc = self->private_impl.f_lc; - v_lp_mask = ((((uint64_t)(1u)) << self->private_impl.f_lp) - 1u); - v_pb_mask = ((((uint64_t)(1u)) << self->private_impl.f_pb) - 1u); - while (v_pos < self->private_impl.f_decoded_length) { - v_index_ao00 = ((v_state << 4u) | ((uint32_t)((v_pos & v_pb_mask)))); - v_prob = ((uint32_t)(self->private_data.f_probs_ao00[v_index_ao00])); - v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); - if (v_bits < v_threshold) { - v_range = v_threshold; - v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); - self->private_data.f_probs_ao00[v_index_ao00] = ((uint16_t)(v_prob)); - if ((v_range >> 24u) == 0u) { + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_6 = *iop_a_src++; + v_c8 = t_6; + } + if ((v_c8 == 32u) || (v_c8 == 9u)) { + continue; + } else if (v_c8 == 35u) { + while (true) { { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint8_t t_2 = *iop_a_src++; - v_c8 = t_2; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - v_index_lit = (15u & ((((uint32_t)((v_pos & v_lp_mask))) << v_lc) | (((uint32_t)(v_prev_byte)) >> (8u - v_lc)))); - v_tree_node = 1u; - if (v_state >= 7u) { - while (true) { - v_match_bit = ((uint32_t)(((uint8_t)(v_match_byte >> 7u)))); -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_match_byte <<= 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - v_prob = ((uint32_t)(self->private_data.f_probs_lit[v_index_lit][(256u + (v_match_bit << 8u) + v_tree_node)])); - v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); - if (v_bits < v_threshold) { - v_range = v_threshold; - v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); - self->private_data.f_probs_lit[v_index_lit][(256u + (v_match_bit << 8u) + v_tree_node)] = ((uint16_t)(v_prob)); - v_tree_node = (v_tree_node << 1u); - if ((v_tree_node >= 256u) || (v_match_bit != 0u)) { - break; - } - } else { - v_bits -= v_threshold; - v_range -= v_threshold; - v_prob -= (v_prob >> 5u); - self->private_data.f_probs_lit[v_index_lit][(256u + (v_match_bit << 8u) + v_tree_node)] = ((uint16_t)(v_prob)); - v_tree_node = ((v_tree_node << 1u) | 1u); - if ((v_tree_node >= 256u) || (v_match_bit == 0u)) { - break; - } - } - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_3 = *iop_a_src++; - v_c8 = t_3; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - } - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_4 = *iop_a_src++; - v_c8 = t_4; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - } - while (v_tree_node < 256u) { - v_prob = ((uint32_t)(self->private_data.f_probs_lit[v_index_lit][v_tree_node])); - v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); - if (v_bits < v_threshold) { - v_range = v_threshold; - v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); - self->private_data.f_probs_lit[v_index_lit][v_tree_node] = ((uint16_t)(v_prob)); - v_tree_node = (v_tree_node << 1u); - } else { - v_bits -= v_threshold; - v_range -= v_threshold; - v_prob -= (v_prob >> 5u); - self->private_data.f_probs_lit[v_index_lit][v_tree_node] = ((uint16_t)(v_prob)); - v_tree_node = ((v_tree_node << 1u) | 1u); + uint8_t t_7 = *iop_a_src++; + v_c8 = t_7; } - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_5 = *iop_a_src++; - v_c8 = t_5; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; + if (v_c8 == 10u) { + break; } } - v_prev_byte = ((uint8_t)(v_tree_node)); - self->private_data.s_decode_bitstream_slow.scratch = v_prev_byte; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - if (iop_a_dst == io2_a_dst) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); + continue; + } else if ((v_c8 < 48u) || (57u < v_c8)) { + status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); + goto exit; + } + self->private_impl.f_height = ((uint32_t)(((uint8_t)(v_c8 - 48u)))); + break; + } + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - *iop_a_dst++ = ((uint8_t)(self->private_data.s_decode_bitstream_slow.scratch)); - v_pos += 1u; - v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_LITERAL[v_state])); + uint8_t t_8 = *iop_a_src++; + v_c8 = t_8; + } + if ((v_c8 == 32u) || (v_c8 == 9u) || (v_c8 == 13u)) { continue; + } else if (v_c8 == 10u) { + break; + } else if ((v_c8 < 48u) || (57u < v_c8)) { + status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); + goto exit; } - v_bits -= v_threshold; - v_range -= v_threshold; - v_prob -= (v_prob >> 5u); - self->private_data.f_probs_ao00[v_index_ao00] = ((uint16_t)(v_prob)); - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_6 = *iop_a_src++; - v_c8 = t_6; + v_n = ((10u * self->private_impl.f_height) + ((uint32_t)(((uint8_t)(v_c8 - 48u))))); + if (v_n > 16777215u) { + status = wuffs_base__make_status(wuffs_netpbm__error__unsupported_netpbm_file); + goto exit; + } + self->private_impl.f_height = v_n; + } + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; + uint8_t t_9 = *iop_a_src++; + v_c8 = t_9; } - do { - v_prob = ((uint32_t)(self->private_data.f_probs_ao20[v_state])); - v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); - if (v_bits < v_threshold) { - v_range = v_threshold; - v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); - self->private_data.f_probs_ao20[v_state] = ((uint16_t)(v_prob)); - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_7 = *iop_a_src++; - v_c8 = t_7; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - do { - v_prob = ((uint32_t)(self->private_data.f_probs_match_len_low[0u][0u])); - v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); - if (v_bits < v_threshold) { - v_range = v_threshold; - v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); - self->private_data.f_probs_match_len_low[0u][0u] = ((uint16_t)(v_prob)); - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_8 = *iop_a_src++; - v_c8 = t_8; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - v_index_len = ((uint32_t)((v_pos & v_pb_mask))); - v_tree_node = 1u; - while (v_tree_node < 8u) { - v_prob = ((uint32_t)(self->private_data.f_probs_match_len_low[v_index_len][v_tree_node])); - v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); - if (v_bits < v_threshold) { - v_range = v_threshold; - v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); - self->private_data.f_probs_match_len_low[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); - v_tree_node = (v_tree_node << 1u); - } else { - v_bits -= v_threshold; - v_range -= v_threshold; - v_prob -= (v_prob >> 5u); - self->private_data.f_probs_match_len_low[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); - v_tree_node = ((v_tree_node << 1u) | 1u); - } - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_9 = *iop_a_src++; - v_c8 = t_9; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - } - v_len_state = ((uint32_t)(WUFFS_LZMA__CLAMP_NO_MORE_THAN_3[(v_tree_node & 7u)])); - v_len = ((v_tree_node & 7u) + 2u); - break; - } - v_bits -= v_threshold; - v_range -= v_threshold; - v_prob -= (v_prob >> 5u); - self->private_data.f_probs_match_len_low[0u][0u] = ((uint16_t)(v_prob)); - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_10 = *iop_a_src++; - v_c8 = t_10; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - v_prob = ((uint32_t)(self->private_data.f_probs_match_len_mid[0u][0u])); - v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); - if (v_bits < v_threshold) { - v_range = v_threshold; - v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); - self->private_data.f_probs_match_len_mid[0u][0u] = ((uint16_t)(v_prob)); - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_11 = *iop_a_src++; - v_c8 = t_11; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - v_index_len = ((uint32_t)((v_pos & v_pb_mask))); - v_tree_node = 1u; - while (v_tree_node < 8u) { - v_prob = ((uint32_t)(self->private_data.f_probs_match_len_mid[v_index_len][v_tree_node])); - v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); - if (v_bits < v_threshold) { - v_range = v_threshold; - v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); - self->private_data.f_probs_match_len_mid[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); - v_tree_node = (v_tree_node << 1u); - } else { - v_bits -= v_threshold; - v_range -= v_threshold; - v_prob -= (v_prob >> 5u); - self->private_data.f_probs_match_len_mid[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); - v_tree_node = ((v_tree_node << 1u) | 1u); - } - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_12 = *iop_a_src++; - v_c8 = t_12; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - } - v_len = ((v_tree_node & 7u) + 10u); - v_len_state = 3u; - break; - } - v_bits -= v_threshold; - v_range -= v_threshold; - v_prob -= (v_prob >> 5u); - self->private_data.f_probs_match_len_mid[0u][0u] = ((uint16_t)(v_prob)); - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_13 = *iop_a_src++; - v_c8 = t_13; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - v_tree_node = 1u; - while (v_tree_node < 256u) { - v_prob = ((uint32_t)(self->private_data.f_probs_match_len_high[0u][v_tree_node])); - v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); - if (v_bits < v_threshold) { - v_range = v_threshold; - v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); - self->private_data.f_probs_match_len_high[0u][v_tree_node] = ((uint16_t)(v_prob)); - v_tree_node = (v_tree_node << 1u); - } else { - v_bits -= v_threshold; - v_range -= v_threshold; - v_prob -= (v_prob >> 5u); - self->private_data.f_probs_match_len_high[0u][v_tree_node] = ((uint16_t)(v_prob)); - v_tree_node = ((v_tree_node << 1u) | 1u); - } - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(17); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_14 = *iop_a_src++; - v_c8 = t_14; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - } - v_len = ((v_tree_node & 255u) + 18u); - v_len_state = 3u; - } while (0); - v_slot = 1u; - while (v_slot < 64u) { - v_prob = ((uint32_t)(self->private_data.f_probs_slot[v_len_state][v_slot])); - v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); - if (v_bits < v_threshold) { - v_range = v_threshold; - v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); - self->private_data.f_probs_slot[v_len_state][v_slot] = ((uint16_t)(v_prob)); - v_slot = (v_slot << 1u); - } else { - v_bits -= v_threshold; - v_range -= v_threshold; - v_prob -= (v_prob >> 5u); - self->private_data.f_probs_slot[v_len_state][v_slot] = ((uint16_t)(v_prob)); - v_slot = ((v_slot << 1u) | 1u); - } - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(18); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_15 = *iop_a_src++; - v_c8 = t_15; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - } - v_slot &= 63u; - v_rep = v_slot; - if (v_slot < 4u) { - } else if (v_slot < 14u) { - v_num_extra_bits = ((v_slot >> 1u) - 1u); - v_rep = ((2u | (v_slot & 1u)) << v_num_extra_bits); - v_index_small_dist_base = ((uint32_t)(v_rep - v_slot)); - v_index_small_dist_extra = 1u; - v_dist_extra_bits = 0u; - v_i = 0u; - while (v_i < v_num_extra_bits) { - v_index_small_dist = (((uint32_t)(v_index_small_dist_base + v_index_small_dist_extra)) & 127u); - v_prob = ((uint32_t)(self->private_data.f_probs_small_dist[v_index_small_dist])); - v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); - if (v_bits < v_threshold) { - v_range = v_threshold; - v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); - self->private_data.f_probs_small_dist[v_index_small_dist] = ((uint16_t)(v_prob)); - v_index_small_dist_extra = ((uint32_t)(v_index_small_dist_extra << 1u)); - v_i += 1u; - } else { - v_bits -= v_threshold; - v_range -= v_threshold; - v_prob -= (v_prob >> 5u); - self->private_data.f_probs_small_dist[v_index_small_dist] = ((uint16_t)(v_prob)); - v_index_small_dist_extra = (((uint32_t)(v_index_small_dist_extra << 1u)) | 1u); - v_dist_extra_bits |= (((uint32_t)(1u)) << v_i); - v_i += 1u; - } - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(19); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_16 = *iop_a_src++; - v_c8 = t_16; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - } - v_rep += v_dist_extra_bits; - } else { - v_num_extra_bits = ((v_slot >> 1u) - 1u); - v_rep = ((2u | (v_slot & 1u)) << v_num_extra_bits); - v_dist_extra_bits = 0u; - while (true) { - v_range >>= 1u; - v_bits -= v_range; - v_high_bit_was_on = ((uint32_t)(0u - (v_bits >> 31u))); - v_bits += (v_range & v_high_bit_was_on); - v_dist_extra_bits = (((uint32_t)(v_dist_extra_bits << 1u)) | (((uint32_t)(v_high_bit_was_on + 1u)) & 1u)); - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(20); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_17 = *iop_a_src++; - v_c8 = t_17; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - v_num_extra_bits -= 1u; - if (v_num_extra_bits <= 4u) { - break; - } - } - v_dist_extra_bits <<= 4u; - v_index_large_dist = 1u; - while (true) { - v_prob = ((uint32_t)(self->private_data.f_probs_large_dist[v_index_large_dist])); - v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); - if (v_bits < v_threshold) { - v_range = v_threshold; - v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); - self->private_data.f_probs_large_dist[v_index_large_dist] = ((uint16_t)(v_prob)); - v_index_large_dist = (15u & ((uint32_t)(v_index_large_dist << 1u))); - } else { - v_bits -= v_threshold; - v_range -= v_threshold; - v_prob -= (v_prob >> 5u); - self->private_data.f_probs_large_dist[v_index_large_dist] = ((uint16_t)(v_prob)); - v_index_large_dist = (15u & (((uint32_t)(v_index_large_dist << 1u)) | 1u)); - v_dist_extra_bits |= (((uint32_t)(1u)) << (4u - v_num_extra_bits)); - } - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(21); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_18 = *iop_a_src++; - v_c8 = t_18; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - v_num_extra_bits -= 1u; - if (v_num_extra_bits <= 0u) { - break; - } + if ((v_c8 == 32u) || (v_c8 == 9u)) { + continue; + } else if (v_c8 == 35u) { + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - v_rep += v_dist_extra_bits; + uint8_t t_10 = *iop_a_src++; + v_c8 = t_10; } - if (v_rep >= 4294967295u) { - goto label__outer__break; + if (v_c8 == 10u) { + break; } - v_rep3 = v_rep2; - v_rep2 = v_rep1; - v_rep1 = v_rep0; - v_rep0 = v_rep; - v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_MATCH[v_state])); - break; } - v_bits -= v_threshold; - v_range -= v_threshold; - v_prob -= (v_prob >> 5u); - self->private_data.f_probs_ao20[v_state] = ((uint16_t)(v_prob)); - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(22); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_19 = *iop_a_src++; - v_c8 = t_19; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; + continue; + } else if ((v_c8 < 48u) || (57u < v_c8)) { + status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); + goto exit; + } + self->private_impl.f_max_value = ((uint32_t)(((uint8_t)(v_c8 - 48u)))); + break; + } + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_11 = *iop_a_src++; + v_c8 = t_11; + } + if ((v_c8 == 32u) || (v_c8 == 9u) || (v_c8 == 13u)) { + continue; + } else if (v_c8 == 10u) { + break; + } else if ((v_c8 < 48u) || (57u < v_c8)) { + status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); + goto exit; + } + v_n = ((10u * self->private_impl.f_max_value) + ((uint32_t)(((uint8_t)(v_c8 - 48u))))); + if (v_n > 16777215u) { + status = wuffs_base__make_status(wuffs_netpbm__error__unsupported_netpbm_file); + goto exit; + } + self->private_impl.f_max_value = v_n; + } + if (self->private_impl.f_max_value != 255u) { + status = wuffs_base__make_status(wuffs_netpbm__error__unsupported_netpbm_file); + goto exit; + } + self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); + if (a_dst != NULL) { + wuffs_base__image_config__set( + a_dst, + self->private_impl.f_pixfmt, + 0u, + self->private_impl.f_width, + self->private_impl.f_height, + self->private_impl.f_frame_config_io_position, + false); + } + self->private_impl.f_call_sequence = 32u; + + goto ok; + ok: + self->private_impl.p_do_decode_image_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func netpbm.decoder.decode_frame_config + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_netpbm__decoder__decode_frame_config( + wuffs_netpbm__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 2)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_netpbm__decoder__do_decode_frame_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_netpbm__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_frame_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func netpbm.decoder.do_decode_frame_config + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_netpbm__decoder__do_decode_frame_config( + wuffs_netpbm__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence == 32u) { + } else if (self->private_impl.f_call_sequence < 32u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_netpbm__decoder__do_decode_image_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else if (self->private_impl.f_call_sequence == 40u) { + if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_restart); + goto exit; + } + } else if (self->private_impl.f_call_sequence == 64u) { + self->private_impl.f_call_sequence = 96u; + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + if (a_dst != NULL) { + wuffs_base__frame_config__set( + a_dst, + wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height), + ((wuffs_base__flicks)(0u)), + 0u, + self->private_impl.f_frame_config_io_position, + 0u, + false, + false, + 0u); + } + self->private_impl.f_call_sequence = 64u; + + ok: + self->private_impl.p_do_decode_frame_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func netpbm.decoder.decode_frame + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_netpbm__decoder__decode_frame( + wuffs_netpbm__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 3)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_frame; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_netpbm__decoder__do_decode_frame(self, + a_dst, + a_src, + a_blend, + a_workbuf, + a_opts); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_netpbm__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_frame = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func netpbm.decoder.do_decode_frame + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_netpbm__decoder__do_decode_frame( + wuffs_netpbm__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence == 64u) { + } else if (self->private_impl.f_call_sequence < 64u) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_netpbm__decoder__do_decode_frame_config(self, NULL, a_src); + if (status.repr) { + goto suspend; + } + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + self->private_impl.f_dst_x = 0u; + self->private_impl.f_dst_y = 0u; + v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, + wuffs_base__pixel_buffer__pixel_format(a_dst), + wuffs_base__pixel_buffer__palette(a_dst), + wuffs_base__utility__make_pixel_format(self->private_impl.f_pixfmt), + wuffs_base__utility__empty_slice_u8(), + a_blend); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + while (true) { + v_status = wuffs_netpbm__decoder__swizzle(self, a_dst, a_src); + if (wuffs_base__status__is_ok(&v_status)) { + break; + } else if (v_status.repr != wuffs_netpbm__note__internal_note_short_read) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + } + self->private_impl.f_call_sequence = 96u; + + ok: + self->private_impl.p_do_decode_frame = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + return status; +} + +// -------- func netpbm.decoder.swizzle + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_netpbm__decoder__swizzle( + wuffs_netpbm__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint32_t v_dst_bytes_per_pixel = 0; + uint64_t v_dst_bytes_per_row = 0; + uint32_t v_src_bytes_per_pixel = 0; + wuffs_base__table_u8 v_tab = {0}; + wuffs_base__slice_u8 v_dst = {0}; + uint64_t v_i = 0; + uint64_t v_j = 0; + uint64_t v_n = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_option); + goto exit; + } + v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); + v_dst_bytes_per_row = ((uint64_t)((self->private_impl.f_width * v_dst_bytes_per_pixel))); + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + while (true) { + if (self->private_impl.f_dst_x == self->private_impl.f_width) { + self->private_impl.f_dst_x = 0u; + self->private_impl.f_dst_y += 1u; + if (self->private_impl.f_dst_y >= self->private_impl.f_height) { + break; + } + } + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); + if (v_dst_bytes_per_row < ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row); + } + v_i = (((uint64_t)(self->private_impl.f_dst_x)) * ((uint64_t)(v_dst_bytes_per_pixel))); + if (v_i >= ((uint64_t)(v_dst.len))) { + v_src_bytes_per_pixel = 1u; + if (self->private_impl.f_pixfmt == 2684356744u) { + v_src_bytes_per_pixel = 3u; + } + v_n = (((uint64_t)(io2_a_src - iop_a_src)) / ((uint64_t)(v_src_bytes_per_pixel))); + v_n = wuffs_base__u64__min(v_n, ((uint64_t)(((uint32_t)(self->private_impl.f_width - self->private_impl.f_dst_x))))); + v_j = v_n; + while (v_j >= 8u) { + if (((uint64_t)(io2_a_src - iop_a_src)) >= ((uint64_t)((v_src_bytes_per_pixel * 8u)))) { + iop_a_src += (v_src_bytes_per_pixel * 8u); } - v_prob = ((uint32_t)(self->private_data.f_probs_ao40[v_state])); - v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); - if (v_bits < v_threshold) { - v_range = v_threshold; - v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); - self->private_data.f_probs_ao40[v_state] = ((uint16_t)(v_prob)); - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(23); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_20 = *iop_a_src++; - v_c8 = t_20; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - v_index_ao41 = ((v_state << 4u) | ((uint32_t)((v_pos & v_pb_mask)))); - v_prob = ((uint32_t)(self->private_data.f_probs_ao41[v_index_ao41])); - v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); - if (v_bits < v_threshold) { - v_range = v_threshold; - v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); - self->private_data.f_probs_ao41[v_index_ao41] = ((uint16_t)(v_prob)); - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(24); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_21 = *iop_a_src++; - v_c8 = t_21; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - v_len = 1u; - v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_SHORTREP[v_state])); - break; - } - v_bits -= v_threshold; - v_range -= v_threshold; - v_prob -= (v_prob >> 5u); - self->private_data.f_probs_ao41[v_index_ao41] = ((uint16_t)(v_prob)); - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(25); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_22 = *iop_a_src++; - v_c8 = t_22; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - } else { - v_bits -= v_threshold; - v_range -= v_threshold; - v_prob -= (v_prob >> 5u); - self->private_data.f_probs_ao40[v_state] = ((uint16_t)(v_prob)); - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(26); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_23 = *iop_a_src++; - v_c8 = t_23; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - v_prob = ((uint32_t)(self->private_data.f_probs_ao60[v_state])); - v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); - if (v_bits < v_threshold) { - v_range = v_threshold; - v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); - self->private_data.f_probs_ao60[v_state] = ((uint16_t)(v_prob)); - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(27); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_24 = *iop_a_src++; - v_c8 = t_24; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - v_reptmp = v_rep1; - v_rep1 = v_rep0; - v_rep0 = v_reptmp; - } else { - v_bits -= v_threshold; - v_range -= v_threshold; - v_prob -= (v_prob >> 5u); - self->private_data.f_probs_ao60[v_state] = ((uint16_t)(v_prob)); - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(28); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_25 = *iop_a_src++; - v_c8 = t_25; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - v_prob = ((uint32_t)(self->private_data.f_probs_ao63[v_state])); - v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); - if (v_bits < v_threshold) { - v_range = v_threshold; - v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); - self->private_data.f_probs_ao63[v_state] = ((uint16_t)(v_prob)); - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(29); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_26 = *iop_a_src++; - v_c8 = t_26; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - v_reptmp = v_rep2; - v_rep2 = v_rep1; - v_rep1 = v_rep0; - v_rep0 = v_reptmp; - } else { - v_bits -= v_threshold; - v_range -= v_threshold; - v_prob -= (v_prob >> 5u); - self->private_data.f_probs_ao63[v_state] = ((uint16_t)(v_prob)); - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(30); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_27 = *iop_a_src++; - v_c8 = t_27; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - v_reptmp = v_rep3; - v_rep3 = v_rep2; - v_rep2 = v_rep1; - v_rep1 = v_rep0; - v_rep0 = v_reptmp; - } + v_j -= 8u; + } + while (v_j > 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) >= ((uint64_t)((v_src_bytes_per_pixel * 1u)))) { + iop_a_src += (v_src_bytes_per_pixel * 1u); + } + v_j -= 1u; + } + } else { + v_n = wuffs_base__pixel_swizzler__swizzle_interleaved_from_reader( + &self->private_impl.f_swizzler, + wuffs_base__slice_u8__subslice_i(v_dst, v_i), + wuffs_base__pixel_buffer__palette(a_dst), + &iop_a_src, + io2_a_src); + } + if (v_n == 0u) { + status = wuffs_base__make_status(wuffs_netpbm__note__internal_note_short_read); + goto ok; + } + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(v_n))); + } + status = wuffs_base__make_status(NULL); + goto ok; + + ok: + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func netpbm.decoder.frame_dirty_rect + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_netpbm__decoder__frame_dirty_rect( + const wuffs_netpbm__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + + return wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height); +} + +// -------- func netpbm.decoder.num_animation_loops + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_netpbm__decoder__num_animation_loops( + const wuffs_netpbm__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return 0u; +} + +// -------- func netpbm.decoder.num_decoded_frame_configs + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_netpbm__decoder__num_decoded_frame_configs( + const wuffs_netpbm__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (self->private_impl.f_call_sequence > 32u) { + return 1u; + } + return 0u; +} + +// -------- func netpbm.decoder.num_decoded_frames + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_netpbm__decoder__num_decoded_frames( + const wuffs_netpbm__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (self->private_impl.f_call_sequence > 64u) { + return 1u; + } + return 0u; +} + +// -------- func netpbm.decoder.restart_frame + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_netpbm__decoder__restart_frame( + wuffs_netpbm__decoder* self, + uint64_t a_index, + uint64_t a_io_position) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + if (self->private_impl.f_call_sequence < 32u) { + return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + } + if ((a_index != 0u) || (a_io_position != self->private_impl.f_frame_config_io_position)) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + self->private_impl.f_call_sequence = 40u; + return wuffs_base__make_status(NULL); +} + +// -------- func netpbm.decoder.set_report_metadata + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_netpbm__decoder__set_report_metadata( + wuffs_netpbm__decoder* self, + uint32_t a_fourcc, + bool a_report) { + return wuffs_base__make_empty_struct(); +} + +// -------- func netpbm.decoder.tell_me_more + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_netpbm__decoder__tell_me_more( + wuffs_netpbm__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 4)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + status = wuffs_base__make_status(wuffs_base__error__no_more_information); + goto exit; + + goto ok; + ok: + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func netpbm.decoder.workbuf_len + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_netpbm__decoder__workbuf_len( + const wuffs_netpbm__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + return wuffs_base__utility__make_range_ii_u64(0u, 0u); +} + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NETPBM) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NIE) + +// ---------------- Status Codes Implementations + +const char wuffs_nie__error__bad_header[] = "#nie: bad header"; +const char wuffs_nie__error__truncated_input[] = "#nie: truncated input"; +const char wuffs_nie__error__unsupported_nie_file[] = "#nie: unsupported NIE file"; +const char wuffs_nie__note__internal_note_short_read[] = "@nie: internal note: short read"; + +// ---------------- Private Consts + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_nie__decoder__do_decode_image_config( + wuffs_nie__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_nie__decoder__do_decode_frame_config( + wuffs_nie__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_nie__decoder__do_decode_frame( + wuffs_nie__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_nie__decoder__swizzle( + wuffs_nie__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src); + +// ---------------- VTables + +const wuffs_base__image_decoder__func_ptrs +wuffs_nie__decoder__func_ptrs_for__wuffs_base__image_decoder = { + (wuffs_base__status(*)(void*, + wuffs_base__pixel_buffer*, + wuffs_base__io_buffer*, + wuffs_base__pixel_blend, + wuffs_base__slice_u8, + wuffs_base__decode_frame_options*))(&wuffs_nie__decoder__decode_frame), + (wuffs_base__status(*)(void*, + wuffs_base__frame_config*, + wuffs_base__io_buffer*))(&wuffs_nie__decoder__decode_frame_config), + (wuffs_base__status(*)(void*, + wuffs_base__image_config*, + wuffs_base__io_buffer*))(&wuffs_nie__decoder__decode_image_config), + (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_nie__decoder__frame_dirty_rect), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_nie__decoder__get_quirk), + (uint32_t(*)(const void*))(&wuffs_nie__decoder__num_animation_loops), + (uint64_t(*)(const void*))(&wuffs_nie__decoder__num_decoded_frame_configs), + (uint64_t(*)(const void*))(&wuffs_nie__decoder__num_decoded_frames), + (wuffs_base__status(*)(void*, + uint64_t, + uint64_t))(&wuffs_nie__decoder__restart_frame), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_nie__decoder__set_quirk), + (wuffs_base__empty_struct(*)(void*, + uint32_t, + bool))(&wuffs_nie__decoder__set_report_metadata), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__more_information*, + wuffs_base__io_buffer*))(&wuffs_nie__decoder__tell_me_more), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_nie__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_nie__decoder__initialize( + wuffs_nie__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } + } + + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = + wuffs_base__image_decoder__vtable_name; + self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = + (const void*)(&wuffs_nie__decoder__func_ptrs_for__wuffs_base__image_decoder); + return wuffs_base__make_status(NULL); +} + +wuffs_nie__decoder* +wuffs_nie__decoder__alloc(void) { + wuffs_nie__decoder* x = + (wuffs_nie__decoder*)(calloc(1, sizeof(wuffs_nie__decoder))); + if (!x) { + return NULL; + } + if (wuffs_nie__decoder__initialize( + x, sizeof(wuffs_nie__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_nie__decoder(void) { + return sizeof(wuffs_nie__decoder); +} + +// ---------------- Function Implementations + +// -------- func nie.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_nie__decoder__get_quirk( + const wuffs_nie__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return 0u; +} + +// -------- func nie.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_nie__decoder__set_quirk( + wuffs_nie__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} + +// -------- func nie.decoder.decode_image_config + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_nie__decoder__decode_image_config( + wuffs_nie__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_image_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_nie__decoder__do_decode_image_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_nie__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_image_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func nie.decoder.do_decode_image_config + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_nie__decoder__do_decode_image_config( + wuffs_nie__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_a = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence != 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - } - do { - v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_low[0u][0u])); - v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); - if (v_bits < v_threshold) { - v_range = v_threshold; - v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); - self->private_data.f_probs_longrep_len_low[0u][0u] = ((uint16_t)(v_prob)); - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(31); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_28 = *iop_a_src++; - v_c8 = t_28; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - v_index_len = ((uint32_t)((v_pos & v_pb_mask))); - v_tree_node = 1u; - while (v_tree_node < 8u) { - v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_low[v_index_len][v_tree_node])); - v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); - if (v_bits < v_threshold) { - v_range = v_threshold; - v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); - self->private_data.f_probs_longrep_len_low[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); - v_tree_node = (v_tree_node << 1u); - } else { - v_bits -= v_threshold; - v_range -= v_threshold; - v_prob -= (v_prob >> 5u); - self->private_data.f_probs_longrep_len_low[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); - v_tree_node = ((v_tree_node << 1u) | 1u); - } - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(32); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_29 = *iop_a_src++; - v_c8 = t_29; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - } - v_len = ((v_tree_node & 7u) + 2u); - v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_LONGREP[v_state])); + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch)); break; } - v_bits -= v_threshold; - v_range -= v_threshold; - v_prob -= (v_prob >> 5u); - self->private_data.f_probs_longrep_len_low[0u][0u] = ((uint16_t)(v_prob)); - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(33); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_30 = *iop_a_src++; - v_c8 = t_30; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; + } + } + v_a = t_0; + } + if (v_a != 1169146734u) { + status = wuffs_base__make_status(wuffs_nie__error__bad_header); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_mid[0u][0u])); - v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); - if (v_bits < v_threshold) { - v_range = v_threshold; - v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); - self->private_data.f_probs_longrep_len_mid[0u][0u] = ((uint16_t)(v_prob)); - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(34); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_31 = *iop_a_src++; - v_c8 = t_31; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - v_index_len = ((uint32_t)((v_pos & v_pb_mask))); - v_tree_node = 1u; - while (v_tree_node < 8u) { - v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_mid[v_index_len][v_tree_node])); - v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); - if (v_bits < v_threshold) { - v_range = v_threshold; - v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); - self->private_data.f_probs_longrep_len_mid[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); - v_tree_node = (v_tree_node << 1u); - } else { - v_bits -= v_threshold; - v_range -= v_threshold; - v_prob -= (v_prob >> 5u); - self->private_data.f_probs_longrep_len_mid[v_index_len][v_tree_node] = ((uint16_t)(v_prob)); - v_tree_node = ((v_tree_node << 1u) | 1u); - } - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(35); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_32 = *iop_a_src++; - v_c8 = t_32; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } - } - v_len = ((v_tree_node & 7u) + 10u); - v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_LONGREP[v_state])); + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 24) { + t_1 = ((uint32_t)(*scratch)); break; } - v_bits -= v_threshold; - v_range -= v_threshold; - v_prob -= (v_prob >> 5u); - self->private_data.f_probs_longrep_len_mid[0u][0u] = ((uint16_t)(v_prob)); - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(36); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_33 = *iop_a_src++; - v_c8 = t_33; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; + } + } + v_a = t_1; + } + if (v_a == 879649535u) { + self->private_impl.f_pixfmt = 2164295816u; + } else if (v_a == 946758399u) { + self->private_impl.f_pixfmt = 2164308923u; + } else if (v_a == 879780607u) { + status = wuffs_base__make_status(wuffs_nie__error__unsupported_nie_file); + goto exit; + } else if (v_a == 946889471u) { + status = wuffs_base__make_status(wuffs_nie__error__unsupported_nie_file); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_nie__error__bad_header); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + uint32_t t_2; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_2 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - v_tree_node = 1u; - while (v_tree_node < 256u) { - v_prob = ((uint32_t)(self->private_data.f_probs_longrep_len_high[0u][v_tree_node])); - v_threshold = ((uint32_t)((v_range >> 11u) * v_prob)); - if (v_bits < v_threshold) { - v_range = v_threshold; - v_prob += (((uint32_t)(2048u - v_prob)) >> 5u); - self->private_data.f_probs_longrep_len_high[0u][v_tree_node] = ((uint16_t)(v_prob)); - v_tree_node = (v_tree_node << 1u); - } else { - v_bits -= v_threshold; - v_range -= v_threshold; - v_prob -= (v_prob >> 5u); - self->private_data.f_probs_longrep_len_high[0u][v_tree_node] = ((uint16_t)(v_prob)); - v_tree_node = ((v_tree_node << 1u) | 1u); - } - if ((v_range >> 24u) == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(37); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_34 = *iop_a_src++; - v_c8 = t_34; - } - v_bits = (((uint32_t)(v_bits << 8u)) | ((uint32_t)(v_c8))); - v_range <<= 8u; - } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; + if (num_bits_2 == 24) { + t_2 = ((uint32_t)(*scratch)); + break; } - v_len = ((v_tree_node & 255u) + 18u); - v_state = ((uint32_t)(WUFFS_LZMA__STATE_TRANSITION_LONGREP[v_state])); - } while (0); - } while (0); - if ((((uint64_t)((v_rep0 + 1u))) > v_pos) || (((uint64_t)((v_rep0 + 1u))) > ((uint64_t)(self->private_impl.f_dict_size)))) { - status = wuffs_base__make_status(wuffs_lzma__error__bad_distance); + num_bits_2 += 8u; + *scratch |= ((uint64_t)(num_bits_2)) << 56; + } + } + v_a = t_2; + } + if (v_a > 2147483647u) { + status = wuffs_base__make_status(wuffs_nie__error__bad_header); + goto exit; + } else if (v_a > 16777215u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); + goto exit; + } + self->private_impl.f_width = v_a; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + uint32_t t_3; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_3 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_3 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_3; + if (num_bits_3 == 24) { + t_3 = ((uint32_t)(*scratch)); + break; + } + num_bits_3 += 8u; + *scratch |= ((uint64_t)(num_bits_3)) << 56; + } + } + v_a = t_3; + } + if (v_a > 2147483647u) { + status = wuffs_base__make_status(wuffs_nie__error__bad_header); + goto exit; + } else if (v_a > 16777215u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); + goto exit; + } + self->private_impl.f_height = v_a; + if (a_dst != NULL) { + wuffs_base__image_config__set( + a_dst, + self->private_impl.f_pixfmt, + 0u, + self->private_impl.f_width, + self->private_impl.f_height, + 16u, + false); + } + self->private_impl.f_call_sequence = 32u; + + goto ok; + ok: + self->private_impl.p_do_decode_image_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func nie.decoder.decode_frame_config + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_nie__decoder__decode_frame_config( + wuffs_nie__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 2)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_nie__decoder__do_decode_frame_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_nie__error__truncated_input); goto exit; } - v_pos += ((uint64_t)(v_len)); - while (((uint64_t)(v_len)) > ((uint64_t)(io2_a_dst - iop_a_dst))) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(38); + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_frame_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func nie.decoder.do_decode_frame_config + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_nie__decoder__do_decode_frame_config( + wuffs_nie__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence == 32u) { + } else if (self->private_impl.f_call_sequence < 32u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_nie__decoder__do_decode_image_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else if (self->private_impl.f_call_sequence == 40u) { + if (16u != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_restart); + goto exit; + } + } else if (self->private_impl.f_call_sequence == 64u) { + self->private_impl.f_call_sequence = 96u; + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + if (a_dst != NULL) { + wuffs_base__frame_config__set( + a_dst, + wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height), + ((wuffs_base__flicks)(0u)), + 0u, + 16u, + 0u, + false, + false, + 0u); + } + self->private_impl.f_call_sequence = 64u; + + ok: + self->private_impl.p_do_decode_frame_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func nie.decoder.decode_frame + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_nie__decoder__decode_frame( + wuffs_nie__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 3)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_frame; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_nie__decoder__do_decode_frame(self, + a_dst, + a_src, + a_blend, + a_workbuf, + a_opts); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_nie__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_frame = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func nie.decoder.do_decode_frame + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_nie__decoder__do_decode_frame( + wuffs_nie__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence == 64u) { + } else if (self->private_impl.f_call_sequence < 64u) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_nie__decoder__do_decode_frame_config(self, NULL, a_src); + if (status.repr) { + goto suspend; } - if (((uint64_t)((v_rep0 + 1u))) > ((uint64_t)(iop_a_dst - io0_a_dst))) { - status = wuffs_base__make_status(wuffs_base__error__insufficient_history); + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + self->private_impl.f_dst_x = 0u; + self->private_impl.f_dst_y = 0u; + v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, + wuffs_base__pixel_buffer__pixel_format(a_dst), + wuffs_base__pixel_buffer__palette(a_dst), + wuffs_base__utility__make_pixel_format(self->private_impl.f_pixfmt), + wuffs_base__utility__empty_slice_u8(), + a_blend); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); goto exit; } - v_match_cusp = wuffs_private_impl__io_writer__limited_copy_u32_from_history_fast_return_cusp( - &iop_a_dst, io0_a_dst, io2_a_dst, v_len, (v_rep0 + 1u)); - v_match_byte = ((uint8_t)((v_match_cusp >> 8u))); - v_prev_byte = ((uint8_t)(v_match_cusp)); + goto ok; } - label__outer__break:; - if (v_bits != 0u) { - status = wuffs_base__make_status(wuffs_lzma__error__bad_bitstream_trailer); - goto exit; - } else if ((self->private_impl.f_decoded_length != 18446744073709551615u) && (self->private_impl.f_decoded_length != v_pos)) { - status = wuffs_base__make_status(wuffs_lzma__error__bad_decoded_length); - goto exit; + while (true) { + v_status = wuffs_nie__decoder__swizzle(self, a_dst, a_src); + if (wuffs_base__status__is_ok(&v_status)) { + break; + } else if (v_status.repr != wuffs_nie__note__internal_note_short_read) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); } + self->private_impl.f_call_sequence = 96u; ok: - self->private_impl.p_decode_bitstream_slow = 0; + self->private_impl.p_do_decode_frame = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_bitstream_slow = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_bitstream_slow.v_bits = v_bits; - self->private_data.s_decode_bitstream_slow.v_range = v_range; - self->private_data.s_decode_bitstream_slow.v_state = v_state; - self->private_data.s_decode_bitstream_slow.v_rep0 = v_rep0; - self->private_data.s_decode_bitstream_slow.v_rep1 = v_rep1; - self->private_data.s_decode_bitstream_slow.v_rep2 = v_rep2; - self->private_data.s_decode_bitstream_slow.v_rep3 = v_rep3; - self->private_data.s_decode_bitstream_slow.v_rep = v_rep; - self->private_data.s_decode_bitstream_slow.v_pos = v_pos; - self->private_data.s_decode_bitstream_slow.v_lc = v_lc; - self->private_data.s_decode_bitstream_slow.v_lp_mask = v_lp_mask; - self->private_data.s_decode_bitstream_slow.v_pb_mask = v_pb_mask; - self->private_data.s_decode_bitstream_slow.v_tree_node = v_tree_node; - self->private_data.s_decode_bitstream_slow.v_prev_byte = v_prev_byte; - self->private_data.s_decode_bitstream_slow.v_match_byte = v_match_byte; - self->private_data.s_decode_bitstream_slow.v_len_state = v_len_state; - self->private_data.s_decode_bitstream_slow.v_slot = v_slot; - self->private_data.s_decode_bitstream_slow.v_len = v_len; - self->private_data.s_decode_bitstream_slow.v_num_extra_bits = v_num_extra_bits; - self->private_data.s_decode_bitstream_slow.v_dist_extra_bits = v_dist_extra_bits; - self->private_data.s_decode_bitstream_slow.v_i = v_i; - self->private_data.s_decode_bitstream_slow.v_index_lit = v_index_lit; - self->private_data.s_decode_bitstream_slow.v_index_len = v_index_len; - self->private_data.s_decode_bitstream_slow.v_index_small_dist_base = v_index_small_dist_base; - self->private_data.s_decode_bitstream_slow.v_index_small_dist_extra = v_index_small_dist_extra; - self->private_data.s_decode_bitstream_slow.v_index_large_dist = v_index_large_dist; + self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + return status; +} + +// -------- func nie.decoder.swizzle + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_nie__decoder__swizzle( + wuffs_nie__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint32_t v_dst_bytes_per_pixel = 0; + uint64_t v_dst_bytes_per_row = 0; + uint32_t v_src_bytes_per_pixel = 0; + wuffs_base__table_u8 v_tab = {0}; + wuffs_base__slice_u8 v_dst = {0}; + uint64_t v_i = 0; + uint64_t v_j = 0; + uint64_t v_n = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_option); + goto exit; + } + v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); + v_dst_bytes_per_row = ((uint64_t)((self->private_impl.f_width * v_dst_bytes_per_pixel))); + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + while (true) { + if (self->private_impl.f_dst_x == self->private_impl.f_width) { + self->private_impl.f_dst_x = 0u; + self->private_impl.f_dst_y += 1u; + if (self->private_impl.f_dst_y >= self->private_impl.f_height) { + break; + } + } + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); + if (v_dst_bytes_per_row < ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row); + } + v_i = (((uint64_t)(self->private_impl.f_dst_x)) * ((uint64_t)(v_dst_bytes_per_pixel))); + if (v_i >= ((uint64_t)(v_dst.len))) { + v_src_bytes_per_pixel = 4u; + if (self->private_impl.f_pixfmt == 2164308923u) { + v_src_bytes_per_pixel = 8u; + } + v_n = (((uint64_t)(io2_a_src - iop_a_src)) / ((uint64_t)(v_src_bytes_per_pixel))); + v_n = wuffs_base__u64__min(v_n, ((uint64_t)(((uint32_t)(self->private_impl.f_width - self->private_impl.f_dst_x))))); + v_j = v_n; + while (v_j >= 8u) { + if (((uint64_t)(io2_a_src - iop_a_src)) >= ((uint64_t)((v_src_bytes_per_pixel * 8u)))) { + iop_a_src += (v_src_bytes_per_pixel * 8u); + } + v_j -= 8u; + } + while (v_j > 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) >= ((uint64_t)((v_src_bytes_per_pixel * 1u)))) { + iop_a_src += (v_src_bytes_per_pixel * 1u); + } + v_j -= 1u; + } + } else { + v_n = wuffs_base__pixel_swizzler__swizzle_interleaved_from_reader( + &self->private_impl.f_swizzler, + wuffs_base__slice_u8__subslice_i(v_dst, v_i), + wuffs_base__pixel_buffer__palette(a_dst), + &iop_a_src, + io2_a_src); + } + if (v_n == 0u) { + status = wuffs_base__make_status(wuffs_nie__note__internal_note_short_read); + goto ok; + } + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(v_n))); + } + status = wuffs_base__make_status(NULL); + goto ok; + + ok: + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func nie.decoder.frame_dirty_rect + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_nie__decoder__frame_dirty_rect( + const wuffs_nie__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + + return wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height); +} + +// -------- func nie.decoder.num_animation_loops + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_nie__decoder__num_animation_loops( + const wuffs_nie__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return 0u; +} + +// -------- func nie.decoder.num_decoded_frame_configs + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_nie__decoder__num_decoded_frame_configs( + const wuffs_nie__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (self->private_impl.f_call_sequence > 32u) { + return 1u; + } + return 0u; +} + +// -------- func nie.decoder.num_decoded_frames + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_nie__decoder__num_decoded_frames( + const wuffs_nie__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (self->private_impl.f_call_sequence > 64u) { + return 1u; + } + return 0u; +} + +// -------- func nie.decoder.restart_frame + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_nie__decoder__restart_frame( + wuffs_nie__decoder* self, + uint64_t a_index, + uint64_t a_io_position) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + if (self->private_impl.f_call_sequence < 32u) { + return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + } + if ((a_index != 0u) || (a_io_position != 16u)) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + self->private_impl.f_call_sequence = 40u; + return wuffs_base__make_status(NULL); +} + +// -------- func nie.decoder.set_report_metadata + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_nie__decoder__set_report_metadata( + wuffs_nie__decoder* self, + uint32_t a_fourcc, + bool a_report) { + return wuffs_base__make_empty_struct(); +} + +// -------- func nie.decoder.tell_me_more + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_nie__decoder__tell_me_more( + wuffs_nie__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 4)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + status = wuffs_base__make_status(wuffs_base__error__no_more_information); + goto exit; + + goto ok; + ok: + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func nie.decoder.workbuf_len + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_nie__decoder__workbuf_len( + const wuffs_nie__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + return wuffs_base__utility__make_range_ii_u64(0u, 0u); +} + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NIE) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ZLIB) + +// ---------------- Status Codes Implementations + +const char wuffs_zlib__note__dictionary_required[] = "@zlib: dictionary required"; +const char wuffs_zlib__error__bad_checksum[] = "#zlib: bad checksum"; +const char wuffs_zlib__error__bad_compression_method[] = "#zlib: bad compression method"; +const char wuffs_zlib__error__bad_compression_window_size[] = "#zlib: bad compression window size"; +const char wuffs_zlib__error__bad_parity_check[] = "#zlib: bad parity check"; +const char wuffs_zlib__error__incorrect_dictionary[] = "#zlib: incorrect dictionary"; +const char wuffs_zlib__error__truncated_input[] = "#zlib: truncated input"; + +// ---------------- Private Consts + +#define WUFFS_ZLIB__QUIRKS_BASE 2056083456u + +#define WUFFS_ZLIB__QUIRKS_COUNT 1u + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_zlib__decoder__do_transform_io( + wuffs_zlib__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); + +// ---------------- VTables + +const wuffs_base__io_transformer__func_ptrs +wuffs_zlib__decoder__func_ptrs_for__wuffs_base__io_transformer = { + (wuffs_base__optional_u63(*)(const void*))(&wuffs_zlib__decoder__dst_history_retain_length), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_zlib__decoder__get_quirk), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_zlib__decoder__set_quirk), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__io_buffer*, + wuffs_base__slice_u8))(&wuffs_zlib__decoder__transform_io), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_zlib__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_zlib__decoder__initialize( + wuffs_zlib__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } + } + + { + wuffs_base__status z = wuffs_adler32__hasher__initialize( + &self->private_data.f_checksum, sizeof(self->private_data.f_checksum), WUFFS_VERSION, options); + if (z.repr) { + return z; + } + } + { + wuffs_base__status z = wuffs_adler32__hasher__initialize( + &self->private_data.f_dict_id_hasher, sizeof(self->private_data.f_dict_id_hasher), WUFFS_VERSION, options); + if (z.repr) { + return z; + } + } + { + wuffs_base__status z = wuffs_deflate__decoder__initialize( + &self->private_data.f_flate, sizeof(self->private_data.f_flate), WUFFS_VERSION, options); + if (z.repr) { + return z; + } + } + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = + wuffs_base__io_transformer__vtable_name; + self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = + (const void*)(&wuffs_zlib__decoder__func_ptrs_for__wuffs_base__io_transformer); + return wuffs_base__make_status(NULL); +} + +wuffs_zlib__decoder* +wuffs_zlib__decoder__alloc(void) { + wuffs_zlib__decoder* x = + (wuffs_zlib__decoder*)(calloc(1, sizeof(wuffs_zlib__decoder))); + if (!x) { + return NULL; + } + if (wuffs_zlib__decoder__initialize( + x, sizeof(wuffs_zlib__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_zlib__decoder(void) { + return sizeof(wuffs_zlib__decoder); +} + +// ---------------- Function Implementations + +// -------- func zlib.decoder.dictionary_id + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_zlib__decoder__dictionary_id( + const wuffs_zlib__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } - goto exit; - exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + return self->private_impl.f_dict_id_want; +} + +// -------- func zlib.decoder.add_dictionary + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_zlib__decoder__add_dictionary( + wuffs_zlib__decoder* self, + wuffs_base__slice_u8 a_dict) { + if (!self) { + return wuffs_base__make_empty_struct(); } - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_empty_struct(); } - return status; + if (self->private_impl.f_header_complete) { + self->private_impl.f_bad_call_sequence = true; + } else { + self->private_impl.f_dict_id_have = wuffs_adler32__hasher__update_u32(&self->private_data.f_dict_id_hasher, a_dict); + wuffs_deflate__decoder__add_history(&self->private_data.f_flate, a_dict); + } + self->private_impl.f_got_dictionary = true; + return wuffs_base__make_empty_struct(); } -// -------- func lzma.decoder.get_quirk +// -------- func zlib.decoder.get_quirk WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_lzma__decoder__get_quirk( - const wuffs_lzma__decoder* self, +wuffs_zlib__decoder__get_quirk( + const wuffs_zlib__decoder* self, uint32_t a_key) { if (!self) { return 0; @@ -52093,18 +63939,27 @@ wuffs_lzma__decoder__get_quirk( return 0; } - if (a_key == 1348001792u) { - return ((uint64_t)(self->private_impl.f_format_extension)); + uint32_t v_key = 0; + + if ((a_key == 1u) && self->private_impl.f_ignore_checksum) { + return 1u; + } else if (a_key >= 2056083456u) { + v_key = (a_key - 2056083456u); + if (v_key < 1u) { + if (self->private_impl.f_quirks[v_key]) { + return 1u; + } + } } return 0u; } -// -------- func lzma.decoder.set_quirk +// -------- func zlib.decoder.set_quirk WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_lzma__decoder__set_quirk( - wuffs_lzma__decoder* self, +wuffs_zlib__decoder__set_quirk( + wuffs_zlib__decoder* self, uint32_t a_key, uint64_t a_value) { if (!self) { @@ -52117,31 +63972,28 @@ wuffs_lzma__decoder__set_quirk( : wuffs_base__error__initialize_not_called); } - uint32_t v_v = 0; - - if (a_key == 1348001792u) { - if (a_value == 0u) { - } else if (((a_value & 255u) != 2u) || ((a_value >> 8u) > 40u)) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - self->private_impl.f_format_extension = ((uint32_t)(a_value)); - v_v = (self->private_impl.f_format_extension >> 8u); - if (v_v < 40u) { - self->private_impl.f_dict_size = ((2u | (v_v & 1u)) << ((v_v >> 1u) + 11u)); - } else { - self->private_impl.f_dict_size = 4294967295u; - } + if (self->private_impl.f_header_complete) { + self->private_impl.f_bad_call_sequence = true; + return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + } else if (a_key == 1u) { + self->private_impl.f_ignore_checksum = (a_value > 0u); return wuffs_base__make_status(NULL); + } else if (a_key >= 2056083456u) { + a_key -= 2056083456u; + if (a_key < 1u) { + self->private_impl.f_quirks[a_key] = (a_value > 0u); + return wuffs_base__make_status(NULL); + } } return wuffs_base__make_status(wuffs_base__error__unsupported_option); } -// -------- func lzma.decoder.dst_history_retain_length +// -------- func zlib.decoder.dst_history_retain_length WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 -wuffs_lzma__decoder__dst_history_retain_length( - const wuffs_lzma__decoder* self) { +wuffs_zlib__decoder__dst_history_retain_length( + const wuffs_zlib__decoder* self) { if (!self) { return wuffs_base__utility__make_optional_u63(false, 0u); } @@ -52150,18 +64002,15 @@ wuffs_lzma__decoder__dst_history_retain_length( return wuffs_base__utility__make_optional_u63(false, 0u); } - if (self->private_impl.f_dict_size == 0u) { - return wuffs_base__utility__make_optional_u63(false, 0u); - } - return wuffs_base__utility__make_optional_u63(true, ((uint64_t)(self->private_impl.f_dict_size))); + return wuffs_base__utility__make_optional_u63(true, 0u); } -// -------- func lzma.decoder.workbuf_len +// -------- func zlib.decoder.workbuf_len WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_lzma__decoder__workbuf_len( - const wuffs_lzma__decoder* self) { +wuffs_zlib__decoder__workbuf_len( + const wuffs_zlib__decoder* self) { if (!self) { return wuffs_base__utility__empty_range_ii_u64(); } @@ -52170,15 +64019,15 @@ wuffs_lzma__decoder__workbuf_len( return wuffs_base__utility__empty_range_ii_u64(); } - return wuffs_base__utility__make_range_ii_u64(0u, 0u); + return wuffs_base__utility__make_range_ii_u64(1u, 1u); } -// -------- func lzma.decoder.transform_io +// -------- func zlib.decoder.transform_io WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_lzma__decoder__transform_io( - wuffs_lzma__decoder* self, +wuffs_zlib__decoder__transform_io( + wuffs_zlib__decoder* self, wuffs_base__io_buffer* a_dst, wuffs_base__io_buffer* a_src, wuffs_base__slice_u8 a_workbuf) { @@ -52211,11 +64060,11 @@ wuffs_lzma__decoder__transform_io( while (true) { { - wuffs_base__status t_0 = wuffs_lzma__decoder__do_transform_io(self, a_dst, a_src); + wuffs_base__status t_0 = wuffs_zlib__decoder__do_transform_io(self, a_dst, a_src, a_workbuf); v_status = t_0; } if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_lzma__error__truncated_input); + status = wuffs_base__make_status(wuffs_zlib__error__truncated_input); goto exit; } status = v_status; @@ -52240,25 +64089,36 @@ wuffs_lzma__decoder__transform_io( return status; } -// -------- func lzma.decoder.do_transform_io +// -------- func zlib.decoder.do_transform_io WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_lzma__decoder__do_transform_io( - wuffs_lzma__decoder* self, +wuffs_zlib__decoder__do_transform_io( + wuffs_zlib__decoder* self, wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src) { + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_header_byte = 0; - uint32_t v_c32 = 0; - uint8_t v_prop_byte = 0; - uint32_t v_lc = 0; - uint32_t v_lp = 0; - uint32_t v_pb = 0; - uint64_t v_smark = 0; + uint16_t v_x = 0; + uint32_t v_checksum_have = 0; wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint32_t v_checksum_want = 0; + uint64_t v_mark = 0; + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -52272,488 +64132,640 @@ wuffs_lzma__decoder__do_transform_io( uint32_t coro_susp_point = self->private_impl.p_do_transform_io; if (coro_susp_point) { - v_header_byte = self->private_data.s_do_transform_io.v_header_byte; + v_checksum_have = self->private_data.s_do_transform_io.v_checksum_have; } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - self->private_impl.f_lzma2_need_prob_reset = true; - self->private_impl.f_lzma2_need_properties = true; - while (true) { - if (self->private_impl.f_format_extension == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + if (self->private_impl.f_bad_call_sequence) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + goto exit; + } else if (self->private_impl.f_quirks[0u]) { + } else if ( ! self->private_impl.f_want_dictionary) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint16_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_0 = wuffs_base__peek_u16be__no_bounds_check(iop_a_src); + iop_a_src += 2; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 8) { + t_0 = ((uint16_t)(*scratch >> 48)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); } - uint8_t t_0 = *iop_a_src++; - v_prop_byte = t_0; - } - if (v_prop_byte >= 225u) { - status = wuffs_base__make_status(wuffs_lzma__error__bad_header); - goto exit; - } - v_lc = ((uint32_t)(((uint8_t)(v_prop_byte % 9u)))); -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_prop_byte /= 9u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - v_lp = ((uint32_t)(((uint8_t)(v_prop_byte % 5u)))); - v_pb = ((uint32_t)(((uint8_t)(v_prop_byte / 5u)))); - if ((v_lc + v_lp) > 4u) { - status = wuffs_base__make_status(wuffs_lzma__error__unsupported_properties); - goto exit; } - self->private_impl.f_lc = wuffs_base__u32__min(v_lc, 4u); - self->private_impl.f_lp = v_lp; - self->private_impl.f_pb = v_pb; + v_x = t_0; + } + if (((uint16_t)(((uint16_t)(v_x >> 8u)) & 15u)) != 8u) { + status = wuffs_base__make_status(wuffs_zlib__error__bad_compression_method); + goto exit; + } + if (((uint16_t)(v_x >> 12u)) > 7u) { + status = wuffs_base__make_status(wuffs_zlib__error__bad_compression_window_size); + goto exit; + } + if (((uint16_t)(v_x % 31u)) != 0u) { + status = wuffs_base__make_status(wuffs_zlib__error__bad_parity_check); + goto exit; + } + self->private_impl.f_want_dictionary = (((uint16_t)(v_x & 32u)) != 0u); + if (self->private_impl.f_want_dictionary) { + self->private_impl.f_dict_id_have = 1u; { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); uint32_t t_1; if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_1 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + t_1 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); iop_a_src += 4; } else { self->private_data.s_do_transform_io.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; + uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); if (num_bits_1 == 24) { - t_1 = ((uint32_t)(*scratch)); + t_1 = ((uint32_t)(*scratch >> 32)); break; } num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)) << 56; - } - } - v_c32 = t_1; - } - self->private_impl.f_dict_size = wuffs_base__u32__max(v_c32, 4096u); - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - uint64_t t_2; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { - t_2 = wuffs_base__peek_u64le__no_bounds_check(iop_a_src); - iop_a_src += 8; - } else { - self->private_data.s_do_transform_io.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; - uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; - if (num_bits_2 == 56) { - t_2 = ((uint64_t)(*scratch)); - break; - } - num_bits_2 += 8u; - *scratch |= ((uint64_t)(num_bits_2)) << 56; + *scratch |= ((uint64_t)(num_bits_1)); } } - self->private_impl.f_decoded_length = t_2; - } - if ((self->private_impl.f_decoded_length >= 9223372036854775808u) && (self->private_impl.f_decoded_length != 18446744073709551615u)) { - status = wuffs_base__make_status(wuffs_lzma__error__unsupported_decoded_length); - goto exit; - } - wuffs_lzma__decoder__initialize_probs(self); - } else { - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); - continue; - } else if (wuffs_base__peek_u8be__no_bounds_check(iop_a_src) == 0u) { - iop_a_src += 1u; - break; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_3 = *iop_a_src++; - v_header_byte = t_3; + self->private_impl.f_dict_id_want = t_1; } - if (v_header_byte < 128u) { - status = wuffs_base__make_status(wuffs_lzma__error__todo); - goto exit; + status = wuffs_base__make_status(wuffs_zlib__note__dictionary_required); + goto ok; + } else if (self->private_impl.f_got_dictionary) { + status = wuffs_base__make_status(wuffs_zlib__error__incorrect_dictionary); + goto exit; + } + } else if (self->private_impl.f_dict_id_have != self->private_impl.f_dict_id_want) { + if (self->private_impl.f_got_dictionary) { + status = wuffs_base__make_status(wuffs_zlib__error__incorrect_dictionary); + goto exit; + } + status = wuffs_base__make_status(wuffs_zlib__note__dictionary_required); + goto ok; + } + self->private_impl.f_header_complete = true; + while (true) { + v_mark = ((uint64_t)(iop_a_dst - io0_a_dst)); + { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); } - self->private_impl.f_decoded_length = ((uint64_t)(v_header_byte)); - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - uint32_t t_4; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_4 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_do_transform_io.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; - uint32_t num_bits_4 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_4); - if (num_bits_4 == 8) { - t_4 = ((uint32_t)(*scratch >> 48)); - break; - } - num_bits_4 += 8u; - *scratch |= ((uint64_t)(num_bits_4)); - } - } - v_c32 = t_4; + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - self->private_impl.f_decoded_length = (((self->private_impl.f_decoded_length & 31u) << 16u) + ((uint64_t)((1u + v_c32)))); - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); - uint32_t t_5; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_5 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_do_transform_io.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; - uint32_t num_bits_5 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_5); - if (num_bits_5 == 8) { - t_5 = ((uint32_t)(*scratch >> 48)); - break; - } - num_bits_5 += 8u; - *scratch |= ((uint64_t)(num_bits_5)); - } - } - v_c32 = t_5; + wuffs_base__status t_2 = wuffs_deflate__decoder__transform_io(&self->private_data.f_flate, a_dst, a_src, a_workbuf); + v_status = t_2; + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; } - self->private_impl.f_lzma2_encoded_length_want = ((uint64_t)((1u + v_c32))); - if (v_header_byte >= 160u) { - wuffs_lzma__decoder__initialize_probs(self); - self->private_impl.f_lzma2_need_prob_reset = false; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; } - if (v_header_byte >= 192u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + } + if ( ! self->private_impl.f_ignore_checksum && ! self->private_impl.f_quirks[0u]) { + v_checksum_have = wuffs_adler32__hasher__update_u32(&self->private_data.f_checksum, wuffs_private_impl__io__since(v_mark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); + } + if ( ! self->private_impl.f_quirks[0u]) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + uint32_t t_3; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_3 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint8_t t_6 = *iop_a_src++; - v_prop_byte = t_6; - } - if (v_prop_byte >= 225u) { - status = wuffs_base__make_status(wuffs_lzma__error__bad_lzma2_header); - goto exit; - } - v_lc = ((uint32_t)(((uint8_t)(v_prop_byte % 9u)))); -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - v_prop_byte /= 9u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - v_lp = ((uint32_t)(((uint8_t)(v_prop_byte % 5u)))); - v_pb = ((uint32_t)(((uint8_t)(v_prop_byte / 5u)))); - if ((v_lc + v_lp) > 4u) { - status = wuffs_base__make_status(wuffs_lzma__error__bad_lzma2_header); - goto exit; - } - self->private_impl.f_lc = wuffs_base__u32__min(v_lc, 4u); - self->private_impl.f_lp = v_lp; - self->private_impl.f_pb = v_pb; - self->private_impl.f_lzma2_need_properties = false; - } - if (v_header_byte >= 224u) { - } - if (self->private_impl.f_lzma2_need_prob_reset || self->private_impl.f_lzma2_need_properties) { - status = wuffs_base__make_status(wuffs_lzma__error__bad_lzma2_header); - goto exit; - } - } - self->private_impl.f_lzma2_encoded_length_have = 0u; - while (true) { - v_smark = ((uint64_t)(iop_a_src - io0_a_src)); - { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - wuffs_base__status t_7 = wuffs_lzma__decoder__decode_bitstream(self, a_dst, a_src); - v_status = t_7; - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_3 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_3); + if (num_bits_3 == 24) { + t_3 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_3 += 8u; + *scratch |= ((uint64_t)(num_bits_3)); } } - wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_lzma2_encoded_length_have, wuffs_private_impl__io__count_since(v_smark, ((uint64_t)(iop_a_src - io0_a_src)))); - if (wuffs_base__status__is_ok(&v_status)) { - break; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(13); + v_checksum_want = t_3; } - if (self->private_impl.f_format_extension == 0u) { - break; - } else if (self->private_impl.f_lzma2_encoded_length_have != self->private_impl.f_lzma2_encoded_length_want) { - status = wuffs_base__make_status(wuffs_lzma__error__bad_lzma2_header); + if ( ! self->private_impl.f_ignore_checksum && (v_checksum_have != v_checksum_want)) { + status = wuffs_base__make_status(wuffs_zlib__error__bad_checksum); goto exit; } } - ok: - self->private_impl.p_do_transform_io = 0; - goto exit; - } + ok: + self->private_impl.p_do_transform_io = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_transform_io.v_checksum_have = v_checksum_have; + + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ZLIB) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__PNG) + +// ---------------- Status Codes Implementations + +const char wuffs_png__error__bad_animation_sequence_number[] = "#png: bad animation sequence number"; +const char wuffs_png__error__bad_checksum[] = "#png: bad checksum"; +const char wuffs_png__error__bad_chunk[] = "#png: bad chunk"; +const char wuffs_png__error__bad_filter[] = "#png: bad filter"; +const char wuffs_png__error__bad_header[] = "#png: bad header"; +const char wuffs_png__error__bad_text_chunk_not_latin_1[] = "#png: bad text chunk (not Latin-1)"; +const char wuffs_png__error__missing_palette[] = "#png: missing palette"; +const char wuffs_png__error__truncated_input[] = "#png: truncated input"; +const char wuffs_png__error__unsupported_cgbi_extension[] = "#png: unsupported CgBI extension"; +const char wuffs_png__error__unsupported_png_compression_method[] = "#png: unsupported PNG compression method"; +const char wuffs_png__error__unsupported_png_file[] = "#png: unsupported PNG file"; +const char wuffs_png__error__internal_error_inconsistent_i_o[] = "#png: internal error: inconsistent I/O"; +const char wuffs_png__error__internal_error_inconsistent_chunk_type[] = "#png: internal error: inconsistent chunk type"; +const char wuffs_png__error__internal_error_inconsistent_workbuf_length[] = "#png: internal error: inconsistent workbuf length"; +const char wuffs_png__error__internal_error_zlib_decoder_did_not_exhaust_its_input[] = "#png: internal error: zlib decoder did not exhaust its input"; + +// ---------------- Private Consts + +#define WUFFS_PNG__ANCILLARY_BIT 32u + +static const uint8_t +WUFFS_PNG__INTERLACING[8][6] WUFFS_BASE__POTENTIALLY_UNUSED = { + { + 0u, 0u, 0u, 0u, 0u, 0u, + }, { + 3u, 7u, 0u, 3u, 7u, 0u, + }, { + 3u, 3u, 4u, 3u, 7u, 0u, + }, { + 2u, 3u, 0u, 3u, 3u, 4u, + }, { + 2u, 1u, 2u, 2u, 3u, 0u, + }, { + 1u, 1u, 0u, 2u, 1u, 2u, + }, { + 1u, 0u, 1u, 1u, 1u, 0u, + }, { + 0u, 0u, 0u, 1u, 0u, 1u, + }, +}; + +static const uint8_t +WUFFS_PNG__LOW_BIT_DEPTH_MULTIPLIERS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 255u, 85u, 0u, 17u, 0u, 0u, 0u, +}; - goto suspend; - suspend: - self->private_impl.p_do_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_do_transform_io.v_header_byte = v_header_byte; +static const uint8_t +WUFFS_PNG__LOW_BIT_DEPTH_NUM_PACKS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 8u, 4u, 0u, 2u, 0u, 0u, 0u, +}; - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } +static const uint8_t +WUFFS_PNG__NUM_CHANNELS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 1u, 0u, 3u, 1u, 2u, 0u, 4u, 0u, +}; - return status; -} +static const uint16_t +WUFFS_PNG__LATIN_1[256] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 32u, 33u, 34u, 35u, 36u, 37u, 38u, 39u, + 40u, 41u, 42u, 43u, 44u, 45u, 46u, 47u, + 48u, 49u, 50u, 51u, 52u, 53u, 54u, 55u, + 56u, 57u, 58u, 59u, 60u, 61u, 62u, 63u, + 64u, 65u, 66u, 67u, 68u, 69u, 70u, 71u, + 72u, 73u, 74u, 75u, 76u, 77u, 78u, 79u, + 80u, 81u, 82u, 83u, 84u, 85u, 86u, 87u, + 88u, 89u, 90u, 91u, 92u, 93u, 94u, 95u, + 96u, 97u, 98u, 99u, 100u, 101u, 102u, 103u, + 104u, 105u, 106u, 107u, 108u, 109u, 110u, 111u, + 112u, 113u, 114u, 115u, 116u, 117u, 118u, 119u, + 120u, 121u, 122u, 123u, 124u, 125u, 126u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 41410u, 41666u, 41922u, 42178u, 42434u, 42690u, 42946u, + 43202u, 43458u, 43714u, 43970u, 44226u, 44482u, 44738u, 44994u, + 45250u, 45506u, 45762u, 46018u, 46274u, 46530u, 46786u, 47042u, + 47298u, 47554u, 47810u, 48066u, 48322u, 48578u, 48834u, 49090u, + 32963u, 33219u, 33475u, 33731u, 33987u, 34243u, 34499u, 34755u, + 35011u, 35267u, 35523u, 35779u, 36035u, 36291u, 36547u, 36803u, + 37059u, 37315u, 37571u, 37827u, 38083u, 38339u, 38595u, 38851u, + 39107u, 39363u, 39619u, 39875u, 40131u, 40387u, 40643u, 40899u, + 41155u, 41411u, 41667u, 41923u, 42179u, 42435u, 42691u, 42947u, + 43203u, 43459u, 43715u, 43971u, 44227u, 44483u, 44739u, 44995u, + 45251u, 45507u, 45763u, 46019u, 46275u, 46531u, 46787u, 47043u, + 47299u, 47555u, 47811u, 48067u, 48323u, 48579u, 48835u, 49091u, +}; -// -------- func lzma.decoder.decode_bitstream +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_lzma__decoder__decode_bitstream( - wuffs_lzma__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); +static wuffs_base__empty_struct +wuffs_png__decoder__filter_1_distance_4_arm_neon( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) - uint32_t coro_susp_point = self->private_impl.p_decode_bitstream; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_3_distance_4_arm_neon( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_lzma__decoder__decode_bitstream_slow(self, a_dst, a_src); - if (status.repr) { - goto suspend; - } +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_3_arm_neon( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) - goto ok; - ok: - self->private_impl.p_decode_bitstream = 0; - goto exit; - } +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_4_arm_neon( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) - goto suspend; - suspend: - self->private_impl.p_decode_bitstream = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_1( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr); - goto exit; - exit: - return status; -} +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_1__choosy_default( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr); -// -------- func lzma.decoder.initialize_probs +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_1_distance_3_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct -wuffs_lzma__decoder__initialize_probs( - wuffs_lzma__decoder* self) { - uint32_t v_i = 0; - uint32_t v_j = 0; +wuffs_png__decoder__filter_1_distance_4_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr); - v_i = 0u; - while (v_i < 192u) { - self->private_data.f_probs_ao00[v_i] = 1024u; - v_i += 1u; - } - v_i = 0u; - while (v_i < 12u) { - self->private_data.f_probs_ao20[v_i] = 1024u; - v_i += 1u; - } - v_i = 0u; - while (v_i < 12u) { - self->private_data.f_probs_ao40[v_i] = 1024u; - v_i += 1u; - } - v_i = 0u; - while (v_i < 192u) { - self->private_data.f_probs_ao41[v_i] = 1024u; - v_i += 1u; - } - v_i = 0u; - while (v_i < 12u) { - self->private_data.f_probs_ao60[v_i] = 1024u; - v_i += 1u; - } - v_i = 0u; - while (v_i < 12u) { - self->private_data.f_probs_ao63[v_i] = 1024u; - v_i += 1u; - } - v_i = 0u; - while (v_i < 16u) { - v_j = 0u; - while (v_j < 8u) { - self->private_data.f_probs_match_len_low[v_i][v_j] = 1024u; - v_j += 1u; - } - v_i += 1u; - } - v_i = 0u; - while (v_i < 16u) { - v_j = 0u; - while (v_j < 8u) { - self->private_data.f_probs_match_len_mid[v_i][v_j] = 1024u; - v_j += 1u; - } - v_i += 1u; - } - v_i = 0u; - while (v_i < 256u) { - self->private_data.f_probs_match_len_high[0u][v_i] = 1024u; - v_i += 1u; - } - v_i = 0u; - while (v_i < 16u) { - v_j = 0u; - while (v_j < 8u) { - self->private_data.f_probs_longrep_len_low[v_i][v_j] = 1024u; - v_j += 1u; - } - v_i += 1u; - } - v_i = 0u; - while (v_i < 16u) { - v_j = 0u; - while (v_j < 8u) { - self->private_data.f_probs_longrep_len_mid[v_i][v_j] = 1024u; - v_j += 1u; - } - v_i += 1u; - } - v_i = 0u; - while (v_i < 256u) { - self->private_data.f_probs_longrep_len_high[0u][v_i] = 1024u; - v_i += 1u; - } - v_i = 0u; - while (v_i < 4u) { - v_j = 0u; - while (v_j < 64u) { - self->private_data.f_probs_slot[v_i][v_j] = 1024u; - v_j += 1u; - } - v_i += 1u; - } - v_i = 0u; - while (v_i < 128u) { - self->private_data.f_probs_small_dist[v_i] = 1024u; - v_i += 1u; - } - v_i = 0u; - while (v_i < 16u) { - self->private_data.f_probs_large_dist[v_i] = 1024u; - v_i += 1u; - } - v_i = 0u; - while (v_i < 16u) { - v_j = 0u; - while (v_j < 768u) { - self->private_data.f_probs_lit[v_i][v_j] = 1024u; - v_j += 1u; - } - v_i += 1u; - } - return wuffs_base__make_empty_struct(); -} +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_2( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZMA) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_3( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZW) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_3__choosy_default( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); -// ---------------- Status Codes Implementations +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_3_distance_3_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); -const char wuffs_lzw__error__bad_code[] = "#lzw: bad code"; -const char wuffs_lzw__error__truncated_input[] = "#lzw: truncated input"; -const char wuffs_lzw__error__internal_error_inconsistent_i_o[] = "#lzw: internal error: inconsistent I/O"; +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_3_distance_4_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); -// ---------------- Private Consts +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); -#define WUFFS_LZW__QUIRKS_BASE 1348378624u +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4__choosy_default( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); -// ---------------- Private Initializer Prototypes +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_3_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); -// ---------------- Private Function Prototypes +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_4_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct -wuffs_lzw__decoder__read_from( - wuffs_lzw__decoder* self, +wuffs_png__decoder__filter_1_distance_4_x86_sse42( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_3_distance_4_x86_sse42( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_3_x86_sse42( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_4_x86_sse42( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev); +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__do_decode_image_config( + wuffs_png__decoder* self, + wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_lzw__decoder__write_to( - wuffs_lzw__decoder* self, - wuffs_base__io_buffer* a_dst); +wuffs_png__decoder__decode_ihdr( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__assign_filter_distance( + wuffs_png__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +static uint64_t +wuffs_png__decoder__calculate_bytes_per_row( + const wuffs_png__decoder* self, + uint32_t a_width); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__choose_filter_implementations( + wuffs_png__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_other_chunk( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src, + bool a_framy); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_actl( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_chrm( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_exif( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_fctl( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_gama( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_iccp( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_plte( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_srgb( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_trns( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__do_decode_frame_config( + wuffs_png__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__skip_frame( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__do_decode_frame( + wuffs_png__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_pass( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__do_tell_me_more( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__filter_and_swizzle( + wuffs_png__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__filter_and_swizzle__choosy_default( + wuffs_png__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__filter_and_swizzle_tricky( + wuffs_png__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf); // ---------------- VTables -const wuffs_base__io_transformer__func_ptrs -wuffs_lzw__decoder__func_ptrs_for__wuffs_base__io_transformer = { - (wuffs_base__optional_u63(*)(const void*))(&wuffs_lzw__decoder__dst_history_retain_length), +const wuffs_base__image_decoder__func_ptrs +wuffs_png__decoder__func_ptrs_for__wuffs_base__image_decoder = { + (wuffs_base__status(*)(void*, + wuffs_base__pixel_buffer*, + wuffs_base__io_buffer*, + wuffs_base__pixel_blend, + wuffs_base__slice_u8, + wuffs_base__decode_frame_options*))(&wuffs_png__decoder__decode_frame), + (wuffs_base__status(*)(void*, + wuffs_base__frame_config*, + wuffs_base__io_buffer*))(&wuffs_png__decoder__decode_frame_config), + (wuffs_base__status(*)(void*, + wuffs_base__image_config*, + wuffs_base__io_buffer*))(&wuffs_png__decoder__decode_image_config), + (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_png__decoder__frame_dirty_rect), (uint64_t(*)(const void*, - uint32_t))(&wuffs_lzw__decoder__get_quirk), + uint32_t))(&wuffs_png__decoder__get_quirk), + (uint32_t(*)(const void*))(&wuffs_png__decoder__num_animation_loops), + (uint64_t(*)(const void*))(&wuffs_png__decoder__num_decoded_frame_configs), + (uint64_t(*)(const void*))(&wuffs_png__decoder__num_decoded_frames), + (wuffs_base__status(*)(void*, + uint64_t, + uint64_t))(&wuffs_png__decoder__restart_frame), (wuffs_base__status(*)(void*, uint32_t, - uint64_t))(&wuffs_lzw__decoder__set_quirk), + uint64_t))(&wuffs_png__decoder__set_quirk), + (wuffs_base__empty_struct(*)(void*, + uint32_t, + bool))(&wuffs_png__decoder__set_report_metadata), (wuffs_base__status(*)(void*, wuffs_base__io_buffer*, - wuffs_base__io_buffer*, - wuffs_base__slice_u8))(&wuffs_lzw__decoder__transform_io), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_lzw__decoder__workbuf_len), + wuffs_base__more_information*, + wuffs_base__io_buffer*))(&wuffs_png__decoder__tell_me_more), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_png__decoder__workbuf_len), }; // ---------------- Initializer Implementations wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_lzw__decoder__initialize( - wuffs_lzw__decoder* self, +wuffs_png__decoder__initialize( + wuffs_png__decoder* self, size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options){ @@ -52790,23 +64802,42 @@ wuffs_lzw__decoder__initialize( } } + self->private_impl.choosy_filter_1 = &wuffs_png__decoder__filter_1__choosy_default; + self->private_impl.choosy_filter_3 = &wuffs_png__decoder__filter_3__choosy_default; + self->private_impl.choosy_filter_4 = &wuffs_png__decoder__filter_4__choosy_default; + self->private_impl.choosy_filter_and_swizzle = &wuffs_png__decoder__filter_and_swizzle__choosy_default; + + { + wuffs_base__status z = wuffs_crc32__ieee_hasher__initialize( + &self->private_data.f_crc32, sizeof(self->private_data.f_crc32), WUFFS_VERSION, options); + if (z.repr) { + return z; + } + } + { + wuffs_base__status z = wuffs_zlib__decoder__initialize( + &self->private_data.f_zlib, sizeof(self->private_data.f_zlib), WUFFS_VERSION, options); + if (z.repr) { + return z; + } + } self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = - wuffs_base__io_transformer__vtable_name; - self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = - (const void*)(&wuffs_lzw__decoder__func_ptrs_for__wuffs_base__io_transformer); + self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = + wuffs_base__image_decoder__vtable_name; + self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = + (const void*)(&wuffs_png__decoder__func_ptrs_for__wuffs_base__image_decoder); return wuffs_base__make_status(NULL); } -wuffs_lzw__decoder* -wuffs_lzw__decoder__alloc(void) { - wuffs_lzw__decoder* x = - (wuffs_lzw__decoder*)(calloc(sizeof(wuffs_lzw__decoder), 1)); +wuffs_png__decoder* +wuffs_png__decoder__alloc(void) { + wuffs_png__decoder* x = + (wuffs_png__decoder*)(calloc(1, sizeof(wuffs_png__decoder))); if (!x) { return NULL; } - if (wuffs_lzw__decoder__initialize( - x, sizeof(wuffs_lzw__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + if (wuffs_png__decoder__initialize( + x, sizeof(wuffs_png__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { free(x); return NULL; } @@ -52814,1032 +64845,1488 @@ wuffs_lzw__decoder__alloc(void) { } size_t -sizeof__wuffs_lzw__decoder(void) { - return sizeof(wuffs_lzw__decoder); +sizeof__wuffs_png__decoder(void) { + return sizeof(wuffs_png__decoder); } // ---------------- Function Implementations -// -------- func lzw.decoder.get_quirk +// ‼ WUFFS MULTI-FILE SECTION +arm_neon +// -------- func png.decoder.filter_1_distance_4_arm_neon +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_lzw__decoder__get_quirk( - const wuffs_lzw__decoder* self, - uint32_t a_key) { - if (!self) { - return 0; +static wuffs_base__empty_struct +wuffs_png__decoder__filter_1_distance_4_arm_neon( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr) { + wuffs_base__slice_u8 v_curr = {0}; + uint8x8_t v_fa = {0}; + uint8x8_t v_fx = {0}; + + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + v_curr.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8)); + while (v_curr.ptr < i_end0_curr) { + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fx = vadd_u8(v_fx, v_fa); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fa = v_fx; + v_curr.ptr += 4; + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fx = vadd_u8(v_fx, v_fa); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fa = v_fx; + v_curr.ptr += 4; + } + v_curr.len = 4; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end1_curr) { + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fx = vadd_u8(v_fx, v_fa); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fa = v_fx; + v_curr.ptr += 4; + } + v_curr.len = 0; } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + return wuffs_base__make_empty_struct(); +} +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) +// ‼ WUFFS MULTI-FILE SECTION -arm_neon + +// ‼ WUFFS MULTI-FILE SECTION +arm_neon +// -------- func png.decoder.filter_3_distance_4_arm_neon + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_3_distance_4_arm_neon( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + wuffs_base__slice_u8 v_curr = {0}; + wuffs_base__slice_u8 v_prev = {0}; + uint8x8_t v_fa = {0}; + uint8x8_t v_fb = {0}; + uint8x8_t v_fx = {0}; + + if (((uint64_t)(a_prev.len)) == 0u) { + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + v_curr.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8)); + while (v_curr.ptr < i_end0_curr) { + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fa = v_fx; + v_curr.ptr += 4; + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fa = v_fx; + v_curr.ptr += 4; + } + v_curr.len = 4; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end1_curr) { + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fa = v_fx; + v_curr.ptr += 4; + } + v_curr.len = 0; + } + } else { + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + wuffs_base__slice_u8 i_slice_prev = a_prev; + v_prev.ptr = i_slice_prev.ptr; + i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8)); + while (v_curr.ptr < i_end0_curr) { + v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fa = v_fx; + v_curr.ptr += 4; + v_prev.ptr += 4; + v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fa = v_fx; + v_curr.ptr += 4; + v_prev.ptr += 4; + } + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end1_curr) { + v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fa = v_fx; + v_curr.ptr += 4; + v_prev.ptr += 4; + } + v_curr.len = 0; + v_prev.len = 0; + } } + return wuffs_base__make_empty_struct(); +} +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) +// ‼ WUFFS MULTI-FILE SECTION -arm_neon - if (a_key == 1348378624u) { - return ((uint64_t)(self->private_impl.f_pending_literal_width_plus_one)); +// ‼ WUFFS MULTI-FILE SECTION +arm_neon +// -------- func png.decoder.filter_4_distance_3_arm_neon + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_3_arm_neon( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + wuffs_base__slice_u8 v_curr = {0}; + wuffs_base__slice_u8 v_prev = {0}; + uint8x8_t v_fa = {0}; + uint8x8_t v_fb = {0}; + uint8x8_t v_fc = {0}; + uint8x8_t v_fx = {0}; + uint16x8_t v_fafb = {0}; + uint16x8_t v_fcfc = {0}; + uint16x8_t v_pa = {0}; + uint16x8_t v_pb = {0}; + uint16x8_t v_pc = {0}; + uint16x8_t v_cmpab = {0}; + uint16x8_t v_cmpac = {0}; + uint8x8_t v_picka = {0}; + uint8x8_t v_pickb = {0}; + + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + wuffs_base__slice_u8 i_slice_prev = a_prev; + v_prev.ptr = i_slice_prev.ptr; + i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, wuffs_private_impl__iterate_total_advance((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)), 7, 6)); + while (v_curr.ptr < i_end0_curr) { + v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fafb = vaddl_u8(v_fa, v_fb); + v_fcfc = vaddl_u8(v_fc, v_fc); + v_pa = vabdl_u8(v_fb, v_fc); + v_pb = vabdl_u8(v_fa, v_fc); + v_pc = vabdq_u16(v_fafb, v_fcfc); + v_cmpab = vcleq_u16(v_pa, v_pb); + v_cmpac = vcleq_u16(v_pa, v_pc); + v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); + v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); + v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); + wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fc = v_fb; + v_fa = v_fx; + v_curr.ptr += 3; + v_prev.ptr += 3; + v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fafb = vaddl_u8(v_fa, v_fb); + v_fcfc = vaddl_u8(v_fc, v_fc); + v_pa = vabdl_u8(v_fb, v_fc); + v_pb = vabdl_u8(v_fa, v_fc); + v_pc = vabdq_u16(v_fafb, v_fcfc); + v_cmpab = vcleq_u16(v_pa, v_pb); + v_cmpac = vcleq_u16(v_pa, v_pc); + v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); + v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); + v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); + wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fc = v_fb; + v_fa = v_fx; + v_curr.ptr += 3; + v_prev.ptr += 3; + } + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, wuffs_private_impl__iterate_total_advance((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)), 4, 3)); + while (v_curr.ptr < i_end1_curr) { + v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fafb = vaddl_u8(v_fa, v_fb); + v_fcfc = vaddl_u8(v_fc, v_fc); + v_pa = vabdl_u8(v_fb, v_fc); + v_pb = vabdl_u8(v_fa, v_fc); + v_pc = vabdq_u16(v_fafb, v_fcfc); + v_cmpab = vcleq_u16(v_pa, v_pb); + v_cmpac = vcleq_u16(v_pa, v_pc); + v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); + v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); + v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); + wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fc = v_fb; + v_fa = v_fx; + v_curr.ptr += 3; + v_prev.ptr += 3; + } + v_curr.len = 3; + v_prev.len = 3; + const uint8_t* i_end2_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3)); + while (v_curr.ptr < i_end2_curr) { + v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u24le__no_bounds_check(v_prev.ptr))); + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u24le__no_bounds_check(v_curr.ptr))); + v_fafb = vaddl_u8(v_fa, v_fb); + v_fcfc = vaddl_u8(v_fc, v_fc); + v_pa = vabdl_u8(v_fb, v_fc); + v_pb = vabdl_u8(v_fa, v_fc); + v_pc = vabdq_u16(v_fafb, v_fcfc); + v_cmpab = vcleq_u16(v_pa, v_pb); + v_cmpac = vcleq_u16(v_pa, v_pc); + v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); + v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); + v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); + wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_curr.ptr += 3; + v_prev.ptr += 3; + } + v_curr.len = 0; + v_prev.len = 0; } - return 0u; + return wuffs_base__make_empty_struct(); } +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) +// ‼ WUFFS MULTI-FILE SECTION -arm_neon -// -------- func lzw.decoder.set_quirk +// ‼ WUFFS MULTI-FILE SECTION +arm_neon +// -------- func png.decoder.filter_4_distance_4_arm_neon +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_lzw__decoder__set_quirk( - wuffs_lzw__decoder* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_4_arm_neon( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + wuffs_base__slice_u8 v_curr = {0}; + wuffs_base__slice_u8 v_prev = {0}; + uint8x8_t v_fa = {0}; + uint8x8_t v_fb = {0}; + uint8x8_t v_fc = {0}; + uint8x8_t v_fx = {0}; + uint16x8_t v_fafb = {0}; + uint16x8_t v_fcfc = {0}; + uint16x8_t v_pa = {0}; + uint16x8_t v_pb = {0}; + uint16x8_t v_pc = {0}; + uint16x8_t v_cmpab = {0}; + uint16x8_t v_cmpac = {0}; + uint8x8_t v_picka = {0}; + uint8x8_t v_pickb = {0}; + + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + wuffs_base__slice_u8 i_slice_prev = a_prev; + v_prev.ptr = i_slice_prev.ptr; + i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8)); + while (v_curr.ptr < i_end0_curr) { + v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fafb = vaddl_u8(v_fa, v_fb); + v_fcfc = vaddl_u8(v_fc, v_fc); + v_pa = vabdl_u8(v_fb, v_fc); + v_pb = vabdl_u8(v_fa, v_fc); + v_pc = vabdq_u16(v_fafb, v_fcfc); + v_cmpab = vcleq_u16(v_pa, v_pb); + v_cmpac = vcleq_u16(v_pa, v_pc); + v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); + v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); + v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fc = v_fb; + v_fa = v_fx; + v_curr.ptr += 4; + v_prev.ptr += 4; + v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fafb = vaddl_u8(v_fa, v_fb); + v_fcfc = vaddl_u8(v_fc, v_fc); + v_pa = vabdl_u8(v_fb, v_fc); + v_pb = vabdl_u8(v_fa, v_fc); + v_pc = vabdq_u16(v_fafb, v_fcfc); + v_cmpab = vcleq_u16(v_pa, v_pb); + v_cmpac = vcleq_u16(v_pa, v_pc); + v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); + v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); + v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fc = v_fb; + v_fa = v_fx; + v_curr.ptr += 4; + v_prev.ptr += 4; + } + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end1_curr) { + v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_fafb = vaddl_u8(v_fa, v_fb); + v_fcfc = vaddl_u8(v_fc, v_fc); + v_pa = vabdl_u8(v_fb, v_fc); + v_pb = vabdl_u8(v_fa, v_fc); + v_pc = vabdq_u16(v_fafb, v_fcfc); + v_cmpab = vcleq_u16(v_pa, v_pb); + v_cmpac = vcleq_u16(v_pa, v_pc); + v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); + v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); + v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); + v_fc = v_fb; + v_fa = v_fx; + v_curr.ptr += 4; + v_prev.ptr += 4; + } + v_curr.len = 0; + v_prev.len = 0; } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); + return wuffs_base__make_empty_struct(); +} +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) +// ‼ WUFFS MULTI-FILE SECTION -arm_neon + +// -------- func png.decoder.filter_1 + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_1( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr) { + return (*self->private_impl.choosy_filter_1)(self, a_curr); +} + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_1__choosy_default( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr) { + uint64_t v_filter_distance = 0; + uint8_t v_fa = 0; + uint64_t v_i_start = 0; + uint64_t v_i = 0; + + v_filter_distance = ((uint64_t)(self->private_impl.f_filter_distance)); + v_i_start = 0u; + while (v_i_start < v_filter_distance) { + v_fa = 0u; + v_i = v_i_start; + while (v_i < ((uint64_t)(a_curr.len))) { + a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + v_fa)); + v_fa = a_curr.ptr[v_i]; + v_i += v_filter_distance; + } + v_i_start += 1u; } + return wuffs_base__make_empty_struct(); +} - if (a_key == 1348378624u) { - if (a_value > 9u) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); +// -------- func png.decoder.filter_1_distance_3_fallback + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_1_distance_3_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr) { + wuffs_base__slice_u8 v_curr = {0}; + uint8_t v_fa0 = 0; + uint8_t v_fa1 = 0; + uint8_t v_fa2 = 0; + + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + v_curr.len = 3; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 6) * 6)); + while (v_curr.ptr < i_end0_curr) { + v_fa0 = ((uint8_t)(v_fa0 + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(v_fa1 + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(v_fa2 + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_curr.ptr += 3; + v_fa0 = ((uint8_t)(v_fa0 + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(v_fa1 + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(v_fa2 + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_curr.ptr += 3; + } + v_curr.len = 3; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3)); + while (v_curr.ptr < i_end1_curr) { + v_fa0 = ((uint8_t)(v_fa0 + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(v_fa1 + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(v_fa2 + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_curr.ptr += 3; + } + v_curr.len = 0; + } + return wuffs_base__make_empty_struct(); +} + +// -------- func png.decoder.filter_1_distance_4_fallback + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_1_distance_4_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr) { + wuffs_base__slice_u8 v_curr = {0}; + uint8_t v_fa0 = 0; + uint8_t v_fa1 = 0; + uint8_t v_fa2 = 0; + uint8_t v_fa3 = 0; + + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + v_curr.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end0_curr) { + v_fa0 = ((uint8_t)(v_fa0 + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(v_fa1 + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(v_fa2 + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_fa3 = ((uint8_t)(v_fa3 + v_curr.ptr[3u])); + v_curr.ptr[3u] = v_fa3; + v_curr.ptr += 4; } - self->private_impl.f_pending_literal_width_plus_one = ((uint32_t)(a_value)); - return wuffs_base__make_status(NULL); + v_curr.len = 0; } - return wuffs_base__make_status(wuffs_base__error__unsupported_option); + return wuffs_base__make_empty_struct(); } -// -------- func lzw.decoder.dst_history_retain_length +// -------- func png.decoder.filter_2 WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 -wuffs_lzw__decoder__dst_history_retain_length( - const wuffs_lzw__decoder* self) { - if (!self) { - return wuffs_base__utility__make_optional_u63(false, 0u); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__make_optional_u63(false, 0u); - } +static wuffs_base__empty_struct +wuffs_png__decoder__filter_2( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + uint64_t v_n = 0; + uint64_t v_i = 0; - return wuffs_base__utility__make_optional_u63(true, 0u); + v_n = wuffs_base__u64__min(((uint64_t)(a_curr.len)), ((uint64_t)(a_prev.len))); + v_i = 0u; + while (v_i < v_n) { + a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + a_prev.ptr[v_i])); + v_i += 1u; + } + return wuffs_base__make_empty_struct(); } -// -------- func lzw.decoder.workbuf_len +// -------- func png.decoder.filter_3 WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_lzw__decoder__workbuf_len( - const wuffs_lzw__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); - } - - return wuffs_base__utility__make_range_ii_u64(0u, 0u); +static wuffs_base__empty_struct +wuffs_png__decoder__filter_3( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + return (*self->private_impl.choosy_filter_3)(self, a_curr, a_prev); } -// -------- func lzw.decoder.transform_io - WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_lzw__decoder__transform_io( - wuffs_lzw__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 1)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint32_t v_i = 0; - - uint32_t coro_susp_point = self->private_impl.p_transform_io; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +static wuffs_base__empty_struct +wuffs_png__decoder__filter_3__choosy_default( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + uint64_t v_filter_distance = 0; + uint64_t v_n = 0; + uint64_t v_i = 0; - self->private_impl.f_literal_width = 8u; - if (self->private_impl.f_pending_literal_width_plus_one > 0u) { - self->private_impl.f_literal_width = (self->private_impl.f_pending_literal_width_plus_one - 1u); + v_filter_distance = ((uint64_t)(self->private_impl.f_filter_distance)); + if (((uint64_t)(a_prev.len)) == 0u) { + v_i = v_filter_distance; + while (v_i < ((uint64_t)(a_curr.len))) { + a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + ((uint8_t)(a_curr.ptr[(v_i - v_filter_distance)] / 2u)))); + v_i += 1u; } - self->private_impl.f_clear_code = (((uint32_t)(1u)) << self->private_impl.f_literal_width); - self->private_impl.f_end_code = (self->private_impl.f_clear_code + 1u); - self->private_impl.f_save_code = self->private_impl.f_end_code; - self->private_impl.f_prev_code = self->private_impl.f_end_code; - self->private_impl.f_width = (self->private_impl.f_literal_width + 1u); - self->private_impl.f_bits = 0u; - self->private_impl.f_n_bits = 0u; - self->private_impl.f_output_ri = 0u; - self->private_impl.f_output_wi = 0u; + } else { + v_n = wuffs_base__u64__min(((uint64_t)(a_curr.len)), ((uint64_t)(a_prev.len))); v_i = 0u; - while (v_i < self->private_impl.f_clear_code) { - self->private_data.f_lm1s[v_i] = 0u; - self->private_data.f_suffixes[v_i][0u] = ((uint8_t)(v_i)); + while ((v_i < v_n) && (v_i < v_filter_distance)) { + a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + ((uint8_t)(a_prev.ptr[v_i] / 2u)))); v_i += 1u; } - while (true) { - wuffs_lzw__decoder__read_from(self, a_src); - if (self->private_impl.f_output_wi > 0u) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_lzw__decoder__write_to(self, a_dst); - if (status.repr) { - goto suspend; - } - } - if (self->private_impl.f_read_from_return_value == 0u) { - break; - } else if (self->private_impl.f_read_from_return_value == 1u) { - continue; - } else if (self->private_impl.f_read_from_return_value == 2u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - } else if (self->private_impl.f_read_from_return_value == 3u) { - status = wuffs_base__make_status(wuffs_lzw__error__truncated_input); - goto exit; - } else if (self->private_impl.f_read_from_return_value == 4u) { - status = wuffs_base__make_status(wuffs_lzw__error__bad_code); - goto exit; - } else { - status = wuffs_base__make_status(wuffs_lzw__error__internal_error_inconsistent_i_o); - goto exit; - } + v_i = v_filter_distance; + while (v_i < v_n) { + a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + ((uint8_t)(((((uint32_t)(a_curr.ptr[(v_i - v_filter_distance)])) + ((uint32_t)(a_prev.ptr[v_i]))) / 2u))))); + v_i += 1u; } - - ok: - self->private_impl.p_transform_io = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; - - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; } - return status; + return wuffs_base__make_empty_struct(); } -// -------- func lzw.decoder.read_from +// -------- func png.decoder.filter_3_distance_3_fallback WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct -wuffs_lzw__decoder__read_from( - wuffs_lzw__decoder* self, - wuffs_base__io_buffer* a_src) { - uint32_t v_clear_code = 0; - uint32_t v_end_code = 0; - uint32_t v_save_code = 0; - uint32_t v_prev_code = 0; - uint32_t v_width = 0; - uint32_t v_bits = 0; - uint32_t v_n_bits = 0; - uint32_t v_output_wi = 0; - uint32_t v_code = 0; - uint32_t v_c = 0; - uint32_t v_o = 0; - uint32_t v_steps = 0; - uint8_t v_first_byte = 0; - uint16_t v_lm1_b = 0; - uint16_t v_lm1_a = 0; - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } +wuffs_png__decoder__filter_3_distance_3_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + wuffs_base__slice_u8 v_curr = {0}; + wuffs_base__slice_u8 v_prev = {0}; + uint8_t v_fa0 = 0; + uint8_t v_fa1 = 0; + uint8_t v_fa2 = 0; - v_clear_code = self->private_impl.f_clear_code; - v_end_code = self->private_impl.f_end_code; - v_save_code = self->private_impl.f_save_code; - v_prev_code = self->private_impl.f_prev_code; - v_width = self->private_impl.f_width; - v_bits = self->private_impl.f_bits; - v_n_bits = self->private_impl.f_n_bits; - v_output_wi = self->private_impl.f_output_wi; - while (true) { - if (v_n_bits < v_width) { - if (((uint64_t)(io2_a_src - iop_a_src)) >= 4u) { - v_bits |= ((uint32_t)(wuffs_base__peek_u32le__no_bounds_check(iop_a_src) << v_n_bits)); - iop_a_src += ((31u - v_n_bits) >> 3u); - v_n_bits |= 24u; - } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if (a_src && a_src->meta.closed) { - self->private_impl.f_read_from_return_value = 3u; - } else { - self->private_impl.f_read_from_return_value = 2u; - } - break; - } else { - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - if (v_n_bits >= v_width) { - } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - if (a_src && a_src->meta.closed) { - self->private_impl.f_read_from_return_value = 3u; - } else { - self->private_impl.f_read_from_return_value = 2u; - } - break; - } else { - v_bits |= (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) << v_n_bits); - iop_a_src += 1u; - v_n_bits += 8u; - if (v_n_bits < v_width) { - self->private_impl.f_read_from_return_value = 5u; - break; - } - } - } - } - v_code = ((v_bits) & WUFFS_PRIVATE_IMPL__LOW_BITS_MASK__U32(v_width)); - v_bits >>= v_width; - v_n_bits -= v_width; - if (v_code < v_clear_code) { - self->private_data.f_output[v_output_wi] = ((uint8_t)(v_code)); - v_output_wi = ((v_output_wi + 1u) & 8191u); - if (v_save_code <= 4095u) { - v_lm1_a = ((uint16_t)(((uint16_t)(self->private_data.f_lm1s[v_prev_code] + 1u)) & 4095u)); - self->private_data.f_lm1s[v_save_code] = v_lm1_a; - if (((uint16_t)(v_lm1_a % 8u)) != 0u) { - self->private_impl.f_prefixes[v_save_code] = self->private_impl.f_prefixes[v_prev_code]; - memcpy(self->private_data.f_suffixes[v_save_code],self->private_data.f_suffixes[v_prev_code], sizeof(self->private_data.f_suffixes[v_save_code])); - self->private_data.f_suffixes[v_save_code][((uint16_t)(v_lm1_a % 8u))] = ((uint8_t)(v_code)); - } else { - self->private_impl.f_prefixes[v_save_code] = ((uint16_t)(v_prev_code)); - self->private_data.f_suffixes[v_save_code][0u] = ((uint8_t)(v_code)); - } - v_save_code += 1u; - if (v_width < 12u) { - v_width += (1u & (v_save_code >> v_width)); - } - v_prev_code = v_code; - } - } else if (v_code <= v_end_code) { - if (v_code == v_end_code) { - self->private_impl.f_read_from_return_value = 0u; - break; - } - v_save_code = v_end_code; - v_prev_code = v_end_code; - v_width = (self->private_impl.f_literal_width + 1u); - } else if (v_code <= v_save_code) { - v_c = v_code; - if (v_code == v_save_code) { - v_c = v_prev_code; - } - v_o = ((v_output_wi + (((uint32_t)(self->private_data.f_lm1s[v_c])) & 4294967288u)) & 8191u); - v_output_wi = ((v_output_wi + 1u + ((uint32_t)(self->private_data.f_lm1s[v_c]))) & 8191u); - v_steps = (((uint32_t)(self->private_data.f_lm1s[v_c])) >> 3u); - while (true) { - memcpy((self->private_data.f_output)+(v_o), (self->private_data.f_suffixes[v_c]), 8u); - if (v_steps <= 0u) { - break; - } - v_steps -= 1u; - v_o = (((uint32_t)(v_o - 8u)) & 8191u); - v_c = ((uint32_t)(self->private_impl.f_prefixes[v_c])); - } - v_first_byte = self->private_data.f_suffixes[v_c][0u]; - if (v_code == v_save_code) { - self->private_data.f_output[v_output_wi] = v_first_byte; - v_output_wi = ((v_output_wi + 1u) & 8191u); + if (((uint64_t)(a_prev.len)) == 0u) { + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + v_curr.len = 3; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 6) * 6)); + while (v_curr.ptr < i_end0_curr) { + v_fa0 = ((uint8_t)(((uint8_t)(v_fa0 / 2u)) + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(((uint8_t)(v_fa1 / 2u)) + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(((uint8_t)(v_fa2 / 2u)) + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_curr.ptr += 3; + v_fa0 = ((uint8_t)(((uint8_t)(v_fa0 / 2u)) + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(((uint8_t)(v_fa1 / 2u)) + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(((uint8_t)(v_fa2 / 2u)) + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_curr.ptr += 3; } - if (v_save_code <= 4095u) { - v_lm1_b = ((uint16_t)(((uint16_t)(self->private_data.f_lm1s[v_prev_code] + 1u)) & 4095u)); - self->private_data.f_lm1s[v_save_code] = v_lm1_b; - if (((uint16_t)(v_lm1_b % 8u)) != 0u) { - self->private_impl.f_prefixes[v_save_code] = self->private_impl.f_prefixes[v_prev_code]; - memcpy(self->private_data.f_suffixes[v_save_code],self->private_data.f_suffixes[v_prev_code], sizeof(self->private_data.f_suffixes[v_save_code])); - self->private_data.f_suffixes[v_save_code][((uint16_t)(v_lm1_b % 8u))] = v_first_byte; - } else { - self->private_impl.f_prefixes[v_save_code] = ((uint16_t)(v_prev_code)); - self->private_data.f_suffixes[v_save_code][0u] = ((uint8_t)(v_first_byte)); - } - v_save_code += 1u; - if (v_width < 12u) { - v_width += (1u & (v_save_code >> v_width)); - } - v_prev_code = v_code; + v_curr.len = 3; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3)); + while (v_curr.ptr < i_end1_curr) { + v_fa0 = ((uint8_t)(((uint8_t)(v_fa0 / 2u)) + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(((uint8_t)(v_fa1 / 2u)) + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(((uint8_t)(v_fa2 / 2u)) + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_curr.ptr += 3; } - } else { - self->private_impl.f_read_from_return_value = 4u; - break; - } - if (v_output_wi > 4095u) { - self->private_impl.f_read_from_return_value = 1u; - break; + v_curr.len = 0; } - } - if (self->private_impl.f_read_from_return_value != 2u) { - while (v_n_bits >= 8u) { - v_n_bits -= 8u; - if (iop_a_src > io1_a_src) { - iop_a_src--; - } else { - self->private_impl.f_read_from_return_value = 5u; - break; + } else { + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + wuffs_base__slice_u8 i_slice_prev = a_prev; + v_prev.ptr = i_slice_prev.ptr; + i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); + v_curr.len = 3; + v_prev.len = 3; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 6) * 6)); + while (v_curr.ptr < i_end0_curr) { + v_fa0 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa0)) + ((uint32_t)(v_prev.ptr[0u]))) / 2u))) + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa1)) + ((uint32_t)(v_prev.ptr[1u]))) / 2u))) + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa2)) + ((uint32_t)(v_prev.ptr[2u]))) / 2u))) + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_curr.ptr += 3; + v_prev.ptr += 3; + v_fa0 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa0)) + ((uint32_t)(v_prev.ptr[0u]))) / 2u))) + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa1)) + ((uint32_t)(v_prev.ptr[1u]))) / 2u))) + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa2)) + ((uint32_t)(v_prev.ptr[2u]))) / 2u))) + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_curr.ptr += 3; + v_prev.ptr += 3; } + v_curr.len = 3; + v_prev.len = 3; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3)); + while (v_curr.ptr < i_end1_curr) { + v_fa0 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa0)) + ((uint32_t)(v_prev.ptr[0u]))) / 2u))) + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa1)) + ((uint32_t)(v_prev.ptr[1u]))) / 2u))) + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa2)) + ((uint32_t)(v_prev.ptr[2u]))) / 2u))) + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_curr.ptr += 3; + v_prev.ptr += 3; + } + v_curr.len = 0; + v_prev.len = 0; } } - self->private_impl.f_save_code = v_save_code; - self->private_impl.f_prev_code = v_prev_code; - self->private_impl.f_width = v_width; - self->private_impl.f_bits = v_bits; - self->private_impl.f_n_bits = v_n_bits; - self->private_impl.f_output_wi = v_output_wi; - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - return wuffs_base__make_empty_struct(); } -// -------- func lzw.decoder.write_to +// -------- func png.decoder.filter_3_distance_4_fallback WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_lzw__decoder__write_to( - wuffs_lzw__decoder* self, - wuffs_base__io_buffer* a_dst) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - wuffs_base__slice_u8 v_s = {0}; - uint64_t v_n = 0; - - uint8_t* iop_a_dst = NULL; - uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; - } - } - - uint32_t coro_susp_point = self->private_impl.p_write_to; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +static wuffs_base__empty_struct +wuffs_png__decoder__filter_3_distance_4_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + wuffs_base__slice_u8 v_curr = {0}; + wuffs_base__slice_u8 v_prev = {0}; + uint8_t v_fa0 = 0; + uint8_t v_fa1 = 0; + uint8_t v_fa2 = 0; + uint8_t v_fa3 = 0; - while (self->private_impl.f_output_wi > 0u) { - if (self->private_impl.f_output_ri > self->private_impl.f_output_wi) { - status = wuffs_base__make_status(wuffs_lzw__error__internal_error_inconsistent_i_o); - goto exit; + if (((uint64_t)(a_prev.len)) == 0u) { + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + v_curr.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end0_curr) { + v_fa0 = ((uint8_t)(((uint8_t)(v_fa0 / 2u)) + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(((uint8_t)(v_fa1 / 2u)) + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(((uint8_t)(v_fa2 / 2u)) + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_fa3 = ((uint8_t)(((uint8_t)(v_fa3 / 2u)) + v_curr.ptr[3u])); + v_curr.ptr[3u] = v_fa3; + v_curr.ptr += 4; } - v_s = wuffs_base__make_slice_u8_ij(self->private_data.f_output, - self->private_impl.f_output_ri, - self->private_impl.f_output_wi); - v_n = wuffs_private_impl__io_writer__copy_from_slice(&iop_a_dst, io2_a_dst,v_s); - if (v_n == ((uint64_t)(v_s.len))) { - self->private_impl.f_output_ri = 0u; - self->private_impl.f_output_wi = 0u; - status = wuffs_base__make_status(NULL); - goto ok; + v_curr.len = 0; + } + } else { + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + wuffs_base__slice_u8 i_slice_prev = a_prev; + v_prev.ptr = i_slice_prev.ptr; + i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end0_curr) { + v_fa0 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa0)) + ((uint32_t)(v_prev.ptr[0u]))) / 2u))) + v_curr.ptr[0u])); + v_curr.ptr[0u] = v_fa0; + v_fa1 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa1)) + ((uint32_t)(v_prev.ptr[1u]))) / 2u))) + v_curr.ptr[1u])); + v_curr.ptr[1u] = v_fa1; + v_fa2 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa2)) + ((uint32_t)(v_prev.ptr[2u]))) / 2u))) + v_curr.ptr[2u])); + v_curr.ptr[2u] = v_fa2; + v_fa3 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa3)) + ((uint32_t)(v_prev.ptr[3u]))) / 2u))) + v_curr.ptr[3u])); + v_curr.ptr[3u] = v_fa3; + v_curr.ptr += 4; + v_prev.ptr += 4; } - self->private_impl.f_output_ri = (((uint32_t)(self->private_impl.f_output_ri + ((uint32_t)(v_n)))) & 8191u); - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + v_curr.len = 0; + v_prev.len = 0; } - - ok: - self->private_impl.p_write_to = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_write_to = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - - goto exit; - exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); } - - return status; + return wuffs_base__make_empty_struct(); } -// -------- func lzw.decoder.flush +// -------- func png.decoder.filter_4 WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__slice_u8 -wuffs_lzw__decoder__flush( - wuffs_lzw__decoder* self) { - if (!self) { - return wuffs_base__empty_slice_u8(); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__empty_slice_u8(); - } - - uint32_t v_ri = 0; - uint32_t v_wi = 0; - - v_ri = self->private_impl.f_output_ri; - v_wi = self->private_impl.f_output_wi; - self->private_impl.f_output_ri = 0u; - self->private_impl.f_output_wi = 0u; - if (v_ri <= v_wi) { - return wuffs_base__make_slice_u8_ij(self->private_data.f_output, v_ri, v_wi); - } - return wuffs_base__make_slice_u8(self->private_data.f_output, 0); +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + return (*self->private_impl.choosy_filter_4)(self, a_curr, a_prev); } -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__LZW) - -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NETPBM) - -// ---------------- Status Codes Implementations - -const char wuffs_netpbm__error__bad_header[] = "#netpbm: bad header"; -const char wuffs_netpbm__error__truncated_input[] = "#netpbm: truncated input"; -const char wuffs_netpbm__error__unsupported_netpbm_file[] = "#netpbm: unsupported Netpbm file"; -const char wuffs_netpbm__note__internal_note_short_read[] = "@netpbm: internal note: short read"; - -// ---------------- Private Consts - -// ---------------- Private Initializer Prototypes - -// ---------------- Private Function Prototypes - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_netpbm__decoder__do_decode_image_config( - wuffs_netpbm__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_netpbm__decoder__do_decode_frame_config( - wuffs_netpbm__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_netpbm__decoder__do_decode_frame( - wuffs_netpbm__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts); - WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_netpbm__decoder__swizzle( - wuffs_netpbm__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src); - -// ---------------- VTables - -const wuffs_base__image_decoder__func_ptrs -wuffs_netpbm__decoder__func_ptrs_for__wuffs_base__image_decoder = { - (wuffs_base__status(*)(void*, - wuffs_base__pixel_buffer*, - wuffs_base__io_buffer*, - wuffs_base__pixel_blend, - wuffs_base__slice_u8, - wuffs_base__decode_frame_options*))(&wuffs_netpbm__decoder__decode_frame), - (wuffs_base__status(*)(void*, - wuffs_base__frame_config*, - wuffs_base__io_buffer*))(&wuffs_netpbm__decoder__decode_frame_config), - (wuffs_base__status(*)(void*, - wuffs_base__image_config*, - wuffs_base__io_buffer*))(&wuffs_netpbm__decoder__decode_image_config), - (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_netpbm__decoder__frame_dirty_rect), - (uint64_t(*)(const void*, - uint32_t))(&wuffs_netpbm__decoder__get_quirk), - (uint32_t(*)(const void*))(&wuffs_netpbm__decoder__num_animation_loops), - (uint64_t(*)(const void*))(&wuffs_netpbm__decoder__num_decoded_frame_configs), - (uint64_t(*)(const void*))(&wuffs_netpbm__decoder__num_decoded_frames), - (wuffs_base__status(*)(void*, - uint64_t, - uint64_t))(&wuffs_netpbm__decoder__restart_frame), - (wuffs_base__status(*)(void*, - uint32_t, - uint64_t))(&wuffs_netpbm__decoder__set_quirk), - (wuffs_base__empty_struct(*)(void*, - uint32_t, - bool))(&wuffs_netpbm__decoder__set_report_metadata), - (wuffs_base__status(*)(void*, - wuffs_base__io_buffer*, - wuffs_base__more_information*, - wuffs_base__io_buffer*))(&wuffs_netpbm__decoder__tell_me_more), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_netpbm__decoder__workbuf_len), -}; - -// ---------------- Initializer Implementations +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4__choosy_default( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + uint64_t v_filter_distance = 0; + uint64_t v_n = 0; + uint64_t v_i = 0; + uint32_t v_fa = 0; + uint32_t v_fb = 0; + uint32_t v_fc = 0; + uint32_t v_pp = 0; + uint32_t v_pa = 0; + uint32_t v_pb = 0; + uint32_t v_pc = 0; -wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_netpbm__decoder__initialize( - wuffs_netpbm__decoder* self, - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options){ - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (sizeof(*self) != sizeof_star_self) { - return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); - } - if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || - (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { - return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + v_filter_distance = ((uint64_t)(self->private_impl.f_filter_distance)); + v_n = wuffs_base__u64__min(((uint64_t)(a_curr.len)), ((uint64_t)(a_prev.len))); + v_i = 0u; + while ((v_i < v_n) && (v_i < v_filter_distance)) { + a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + a_prev.ptr[v_i])); + v_i += 1u; } - - if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { - // The whole point of this if-check is to detect an uninitialized *self. - // We disable the warning on GCC. Clang-5.0 does not have this warning. -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" -#endif - if (self->private_impl.magic != 0) { - return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + v_i = v_filter_distance; + while (v_i < v_n) { + v_fa = ((uint32_t)(a_curr.ptr[(v_i - v_filter_distance)])); + v_fb = ((uint32_t)(a_prev.ptr[v_i])); + v_fc = ((uint32_t)(a_prev.ptr[(v_i - v_filter_distance)])); + v_pp = ((uint32_t)(((uint32_t)(v_fa + v_fb)) - v_fc)); + v_pa = ((uint32_t)(v_pp - v_fa)); + if (v_pa >= 2147483648u) { + v_pa = ((uint32_t)(0u - v_pa)); } -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } else { - if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { - memset(self, 0, sizeof(*self)); - options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + v_pb = ((uint32_t)(v_pp - v_fb)); + if (v_pb >= 2147483648u) { + v_pb = ((uint32_t)(0u - v_pb)); + } + v_pc = ((uint32_t)(v_pp - v_fc)); + if (v_pc >= 2147483648u) { + v_pc = ((uint32_t)(0u - v_pc)); + } + if ((v_pa <= v_pb) && (v_pa <= v_pc)) { + } else if (v_pb <= v_pc) { + v_fa = v_fb; } else { - memset(&(self->private_impl), 0, sizeof(self->private_impl)); + v_fa = v_fc; } + a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + ((uint8_t)(v_fa)))); + v_i += 1u; } - - self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = - wuffs_base__image_decoder__vtable_name; - self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = - (const void*)(&wuffs_netpbm__decoder__func_ptrs_for__wuffs_base__image_decoder); - return wuffs_base__make_status(NULL); -} - -wuffs_netpbm__decoder* -wuffs_netpbm__decoder__alloc(void) { - wuffs_netpbm__decoder* x = - (wuffs_netpbm__decoder*)(calloc(sizeof(wuffs_netpbm__decoder), 1)); - if (!x) { - return NULL; - } - if (wuffs_netpbm__decoder__initialize( - x, sizeof(wuffs_netpbm__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; - } - return x; -} - -size_t -sizeof__wuffs_netpbm__decoder(void) { - return sizeof(wuffs_netpbm__decoder); + return wuffs_base__make_empty_struct(); } -// ---------------- Function Implementations - -// -------- func netpbm.decoder.get_quirk +// -------- func png.decoder.filter_4_distance_3_fallback WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_netpbm__decoder__get_quirk( - const wuffs_netpbm__decoder* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_3_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + wuffs_base__slice_u8 v_curr = {0}; + wuffs_base__slice_u8 v_prev = {0}; + uint32_t v_fa0 = 0; + uint32_t v_fa1 = 0; + uint32_t v_fa2 = 0; + uint32_t v_fb0 = 0; + uint32_t v_fb1 = 0; + uint32_t v_fb2 = 0; + uint32_t v_fc0 = 0; + uint32_t v_fc1 = 0; + uint32_t v_fc2 = 0; + uint32_t v_pp0 = 0; + uint32_t v_pp1 = 0; + uint32_t v_pp2 = 0; + uint32_t v_pa0 = 0; + uint32_t v_pa1 = 0; + uint32_t v_pa2 = 0; + uint32_t v_pb0 = 0; + uint32_t v_pb1 = 0; + uint32_t v_pb2 = 0; + uint32_t v_pc0 = 0; + uint32_t v_pc1 = 0; + uint32_t v_pc2 = 0; - return 0u; + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + wuffs_base__slice_u8 i_slice_prev = a_prev; + v_prev.ptr = i_slice_prev.ptr; + i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); + v_curr.len = 3; + v_prev.len = 3; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3)); + while (v_curr.ptr < i_end0_curr) { + v_fb0 = ((uint32_t)(v_prev.ptr[0u])); + v_pp0 = ((uint32_t)(((uint32_t)(v_fa0 + v_fb0)) - v_fc0)); + v_pa0 = ((uint32_t)(v_pp0 - v_fa0)); + if (v_pa0 >= 2147483648u) { + v_pa0 = ((uint32_t)(0u - v_pa0)); + } + v_pb0 = ((uint32_t)(v_pp0 - v_fb0)); + if (v_pb0 >= 2147483648u) { + v_pb0 = ((uint32_t)(0u - v_pb0)); + } + v_pc0 = ((uint32_t)(v_pp0 - v_fc0)); + if (v_pc0 >= 2147483648u) { + v_pc0 = ((uint32_t)(0u - v_pc0)); + } + if ((v_pa0 <= v_pb0) && (v_pa0 <= v_pc0)) { + } else if (v_pb0 <= v_pc0) { + v_fa0 = v_fb0; + } else { + v_fa0 = v_fc0; + } + v_curr.ptr[0u] = ((uint8_t)(v_curr.ptr[0u] + ((uint8_t)(v_fa0)))); + v_fa0 = ((uint32_t)(v_curr.ptr[0u])); + v_fc0 = v_fb0; + v_fb1 = ((uint32_t)(v_prev.ptr[1u])); + v_pp1 = ((uint32_t)(((uint32_t)(v_fa1 + v_fb1)) - v_fc1)); + v_pa1 = ((uint32_t)(v_pp1 - v_fa1)); + if (v_pa1 >= 2147483648u) { + v_pa1 = ((uint32_t)(0u - v_pa1)); + } + v_pb1 = ((uint32_t)(v_pp1 - v_fb1)); + if (v_pb1 >= 2147483648u) { + v_pb1 = ((uint32_t)(0u - v_pb1)); + } + v_pc1 = ((uint32_t)(v_pp1 - v_fc1)); + if (v_pc1 >= 2147483648u) { + v_pc1 = ((uint32_t)(0u - v_pc1)); + } + if ((v_pa1 <= v_pb1) && (v_pa1 <= v_pc1)) { + } else if (v_pb1 <= v_pc1) { + v_fa1 = v_fb1; + } else { + v_fa1 = v_fc1; + } + v_curr.ptr[1u] = ((uint8_t)(v_curr.ptr[1u] + ((uint8_t)(v_fa1)))); + v_fa1 = ((uint32_t)(v_curr.ptr[1u])); + v_fc1 = v_fb1; + v_fb2 = ((uint32_t)(v_prev.ptr[2u])); + v_pp2 = ((uint32_t)(((uint32_t)(v_fa2 + v_fb2)) - v_fc2)); + v_pa2 = ((uint32_t)(v_pp2 - v_fa2)); + if (v_pa2 >= 2147483648u) { + v_pa2 = ((uint32_t)(0u - v_pa2)); + } + v_pb2 = ((uint32_t)(v_pp2 - v_fb2)); + if (v_pb2 >= 2147483648u) { + v_pb2 = ((uint32_t)(0u - v_pb2)); + } + v_pc2 = ((uint32_t)(v_pp2 - v_fc2)); + if (v_pc2 >= 2147483648u) { + v_pc2 = ((uint32_t)(0u - v_pc2)); + } + if ((v_pa2 <= v_pb2) && (v_pa2 <= v_pc2)) { + } else if (v_pb2 <= v_pc2) { + v_fa2 = v_fb2; + } else { + v_fa2 = v_fc2; + } + v_curr.ptr[2u] = ((uint8_t)(v_curr.ptr[2u] + ((uint8_t)(v_fa2)))); + v_fa2 = ((uint32_t)(v_curr.ptr[2u])); + v_fc2 = v_fb2; + v_curr.ptr += 3; + v_prev.ptr += 3; + } + v_curr.len = 0; + v_prev.len = 0; + } + return wuffs_base__make_empty_struct(); } -// -------- func netpbm.decoder.set_quirk +// -------- func png.decoder.filter_4_distance_4_fallback WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_netpbm__decoder__set_quirk( - wuffs_netpbm__decoder* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_4_fallback( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + wuffs_base__slice_u8 v_curr = {0}; + wuffs_base__slice_u8 v_prev = {0}; + uint32_t v_fa0 = 0; + uint32_t v_fa1 = 0; + uint32_t v_fa2 = 0; + uint32_t v_fa3 = 0; + uint32_t v_fb0 = 0; + uint32_t v_fb1 = 0; + uint32_t v_fb2 = 0; + uint32_t v_fb3 = 0; + uint32_t v_fc0 = 0; + uint32_t v_fc1 = 0; + uint32_t v_fc2 = 0; + uint32_t v_fc3 = 0; + uint32_t v_pp0 = 0; + uint32_t v_pp1 = 0; + uint32_t v_pp2 = 0; + uint32_t v_pp3 = 0; + uint32_t v_pa0 = 0; + uint32_t v_pa1 = 0; + uint32_t v_pa2 = 0; + uint32_t v_pa3 = 0; + uint32_t v_pb0 = 0; + uint32_t v_pb1 = 0; + uint32_t v_pb2 = 0; + uint32_t v_pb3 = 0; + uint32_t v_pc0 = 0; + uint32_t v_pc1 = 0; + uint32_t v_pc2 = 0; + uint32_t v_pc3 = 0; + + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + wuffs_base__slice_u8 i_slice_prev = a_prev; + v_prev.ptr = i_slice_prev.ptr; + i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end0_curr) { + v_fb0 = ((uint32_t)(v_prev.ptr[0u])); + v_pp0 = ((uint32_t)(((uint32_t)(v_fa0 + v_fb0)) - v_fc0)); + v_pa0 = ((uint32_t)(v_pp0 - v_fa0)); + if (v_pa0 >= 2147483648u) { + v_pa0 = ((uint32_t)(0u - v_pa0)); + } + v_pb0 = ((uint32_t)(v_pp0 - v_fb0)); + if (v_pb0 >= 2147483648u) { + v_pb0 = ((uint32_t)(0u - v_pb0)); + } + v_pc0 = ((uint32_t)(v_pp0 - v_fc0)); + if (v_pc0 >= 2147483648u) { + v_pc0 = ((uint32_t)(0u - v_pc0)); + } + if ((v_pa0 <= v_pb0) && (v_pa0 <= v_pc0)) { + } else if (v_pb0 <= v_pc0) { + v_fa0 = v_fb0; + } else { + v_fa0 = v_fc0; + } + v_curr.ptr[0u] = ((uint8_t)(v_curr.ptr[0u] + ((uint8_t)(v_fa0)))); + v_fa0 = ((uint32_t)(v_curr.ptr[0u])); + v_fc0 = v_fb0; + v_fb1 = ((uint32_t)(v_prev.ptr[1u])); + v_pp1 = ((uint32_t)(((uint32_t)(v_fa1 + v_fb1)) - v_fc1)); + v_pa1 = ((uint32_t)(v_pp1 - v_fa1)); + if (v_pa1 >= 2147483648u) { + v_pa1 = ((uint32_t)(0u - v_pa1)); + } + v_pb1 = ((uint32_t)(v_pp1 - v_fb1)); + if (v_pb1 >= 2147483648u) { + v_pb1 = ((uint32_t)(0u - v_pb1)); + } + v_pc1 = ((uint32_t)(v_pp1 - v_fc1)); + if (v_pc1 >= 2147483648u) { + v_pc1 = ((uint32_t)(0u - v_pc1)); + } + if ((v_pa1 <= v_pb1) && (v_pa1 <= v_pc1)) { + } else if (v_pb1 <= v_pc1) { + v_fa1 = v_fb1; + } else { + v_fa1 = v_fc1; + } + v_curr.ptr[1u] = ((uint8_t)(v_curr.ptr[1u] + ((uint8_t)(v_fa1)))); + v_fa1 = ((uint32_t)(v_curr.ptr[1u])); + v_fc1 = v_fb1; + v_fb2 = ((uint32_t)(v_prev.ptr[2u])); + v_pp2 = ((uint32_t)(((uint32_t)(v_fa2 + v_fb2)) - v_fc2)); + v_pa2 = ((uint32_t)(v_pp2 - v_fa2)); + if (v_pa2 >= 2147483648u) { + v_pa2 = ((uint32_t)(0u - v_pa2)); + } + v_pb2 = ((uint32_t)(v_pp2 - v_fb2)); + if (v_pb2 >= 2147483648u) { + v_pb2 = ((uint32_t)(0u - v_pb2)); + } + v_pc2 = ((uint32_t)(v_pp2 - v_fc2)); + if (v_pc2 >= 2147483648u) { + v_pc2 = ((uint32_t)(0u - v_pc2)); + } + if ((v_pa2 <= v_pb2) && (v_pa2 <= v_pc2)) { + } else if (v_pb2 <= v_pc2) { + v_fa2 = v_fb2; + } else { + v_fa2 = v_fc2; + } + v_curr.ptr[2u] = ((uint8_t)(v_curr.ptr[2u] + ((uint8_t)(v_fa2)))); + v_fa2 = ((uint32_t)(v_curr.ptr[2u])); + v_fc2 = v_fb2; + v_fb3 = ((uint32_t)(v_prev.ptr[3u])); + v_pp3 = ((uint32_t)(((uint32_t)(v_fa3 + v_fb3)) - v_fc3)); + v_pa3 = ((uint32_t)(v_pp3 - v_fa3)); + if (v_pa3 >= 2147483648u) { + v_pa3 = ((uint32_t)(0u - v_pa3)); + } + v_pb3 = ((uint32_t)(v_pp3 - v_fb3)); + if (v_pb3 >= 2147483648u) { + v_pb3 = ((uint32_t)(0u - v_pb3)); + } + v_pc3 = ((uint32_t)(v_pp3 - v_fc3)); + if (v_pc3 >= 2147483648u) { + v_pc3 = ((uint32_t)(0u - v_pc3)); + } + if ((v_pa3 <= v_pb3) && (v_pa3 <= v_pc3)) { + } else if (v_pb3 <= v_pc3) { + v_fa3 = v_fb3; + } else { + v_fa3 = v_fc3; + } + v_curr.ptr[3u] = ((uint8_t)(v_curr.ptr[3u] + ((uint8_t)(v_fa3)))); + v_fa3 = ((uint32_t)(v_curr.ptr[3u])); + v_fc3 = v_fb3; + v_curr.ptr += 4; + v_prev.ptr += 4; + } + v_curr.len = 0; + v_prev.len = 0; } - - return wuffs_base__make_status(wuffs_base__error__unsupported_option); + return wuffs_base__make_empty_struct(); } -// -------- func netpbm.decoder.decode_image_config +// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 +// -------- func png.decoder.filter_1_distance_4_x86_sse42 +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_netpbm__decoder__decode_image_config( - wuffs_netpbm__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 1)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - uint32_t coro_susp_point = self->private_impl.p_decode_image_config; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +static wuffs_base__empty_struct +wuffs_png__decoder__filter_1_distance_4_x86_sse42( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr) { + wuffs_base__slice_u8 v_curr = {0}; + __m128i v_x128 = {0}; + __m128i v_a128 = {0}; - while (true) { - { - wuffs_base__status t_0 = wuffs_netpbm__decoder__do_decode_image_config(self, a_dst, a_src); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_netpbm__error__truncated_input); - goto exit; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + v_curr.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8)); + while (v_curr.ptr < i_end0_curr) { + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_add_epi8(v_x128, v_a128); + v_a128 = v_x128; + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_add_epi8(v_x128, v_a128); + v_a128 = v_x128; + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; } - - ok: - self->private_impl.p_decode_image_config = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; - - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; + v_curr.len = 4; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end1_curr) { + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_add_epi8(v_x128, v_a128); + v_a128 = v_x128; + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; + } + v_curr.len = 0; } - return status; + return wuffs_base__make_empty_struct(); } +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 -// -------- func netpbm.decoder.do_decode_image_config +// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 +// -------- func png.decoder.filter_3_distance_4_x86_sse42 +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_netpbm__decoder__do_decode_image_config( - wuffs_netpbm__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - uint8_t v_c = 0; - uint32_t v_n = 0; - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } - - uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +static wuffs_base__empty_struct +wuffs_png__decoder__filter_3_distance_4_x86_sse42( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + wuffs_base__slice_u8 v_curr = {0}; + wuffs_base__slice_u8 v_prev = {0}; + __m128i v_x128 = {0}; + __m128i v_a128 = {0}; + __m128i v_b128 = {0}; + __m128i v_p128 = {0}; + __m128i v_k128 = {0}; - if (self->private_impl.f_call_sequence != 0u) { - status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - goto exit; - } + if (((uint64_t)(a_prev.len)) == 0u) { + v_k128 = _mm_set1_epi8((int8_t)(254u)); { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + v_curr.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8)); + while (v_curr.ptr < i_end0_curr) { + v_p128 = _mm_avg_epu8(_mm_and_si128(v_a128, v_k128), v_b128); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; + v_p128 = _mm_avg_epu8(_mm_and_si128(v_a128, v_k128), v_b128); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; } - uint8_t t_0 = *iop_a_src++; - v_c = t_0; - } - if (v_c != 80u) { - status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + v_curr.len = 4; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end1_curr) { + v_p128 = _mm_avg_epu8(_mm_and_si128(v_a128, v_k128), v_b128); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; } - uint8_t t_1 = *iop_a_src++; - v_c = t_1; - } - if ((v_c < 49u) || (55u < v_c)) { - status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); - goto exit; - } else if (v_c == 53u) { - self->private_impl.f_pixfmt = 536870920u; - } else if (v_c == 54u) { - self->private_impl.f_pixfmt = 2684356744u; - } else { - status = wuffs_base__make_status(wuffs_netpbm__error__unsupported_netpbm_file); - goto exit; + v_curr.len = 0; } + } else { + v_k128 = _mm_set1_epi8((int8_t)(1u)); { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_2 = *iop_a_src++; - v_c = t_2; - } - if (v_c != 10u) { - status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); - goto exit; - } - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_3 = *iop_a_src++; - v_c = t_3; - } - if ((v_c == 32u) || (v_c == 9u)) { - continue; - } else if (v_c == 35u) { - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_4 = *iop_a_src++; - v_c = t_4; - } - if (v_c == 10u) { - break; - } - } - continue; - } else if ((v_c < 48u) || (57u < v_c)) { - status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); - goto exit; - } - self->private_impl.f_width = ((uint32_t)(((uint8_t)(v_c - 48u)))); - break; - } - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_5 = *iop_a_src++; - v_c = t_5; - } - if ((v_c == 32u) || (v_c == 9u)) { - break; - } else if ((v_c < 48u) || (57u < v_c)) { - status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); - goto exit; - } - v_n = ((10u * self->private_impl.f_width) + ((uint32_t)(((uint8_t)(v_c - 48u))))); - if (v_n > 16777215u) { - status = wuffs_base__make_status(wuffs_netpbm__error__unsupported_netpbm_file); - goto exit; - } - self->private_impl.f_width = v_n; - } - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_6 = *iop_a_src++; - v_c = t_6; + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + wuffs_base__slice_u8 i_slice_prev = a_prev; + v_prev.ptr = i_slice_prev.ptr; + i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8)); + while (v_curr.ptr < i_end0_curr) { + v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_p128 = _mm_avg_epu8(v_a128, v_b128); + v_p128 = _mm_sub_epi8(v_p128, _mm_and_si128(v_k128, _mm_xor_si128(v_a128, v_b128))); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; + v_prev.ptr += 4; + v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_p128 = _mm_avg_epu8(v_a128, v_b128); + v_p128 = _mm_sub_epi8(v_p128, _mm_and_si128(v_k128, _mm_xor_si128(v_a128, v_b128))); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; + v_prev.ptr += 4; } - if ((v_c == 32u) || (v_c == 9u)) { - continue; - } else if (v_c == 35u) { - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_7 = *iop_a_src++; - v_c = t_7; - } - if (v_c == 10u) { - break; - } - } - continue; - } else if ((v_c < 48u) || (57u < v_c)) { - status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); - goto exit; + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end1_curr) { + v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_p128 = _mm_avg_epu8(v_a128, v_b128); + v_p128 = _mm_sub_epi8(v_p128, _mm_and_si128(v_k128, _mm_xor_si128(v_a128, v_b128))); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; + v_prev.ptr += 4; } - self->private_impl.f_height = ((uint32_t)(((uint8_t)(v_c - 48u)))); - break; + v_curr.len = 0; + v_prev.len = 0; } - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_8 = *iop_a_src++; - v_c = t_8; - } - if ((v_c == 32u) || (v_c == 9u) || (v_c == 13u)) { - continue; - } else if (v_c == 10u) { - break; - } else if ((v_c < 48u) || (57u < v_c)) { - status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); - goto exit; - } - v_n = ((10u * self->private_impl.f_height) + ((uint32_t)(((uint8_t)(v_c - 48u))))); - if (v_n > 16777215u) { - status = wuffs_base__make_status(wuffs_netpbm__error__unsupported_netpbm_file); - goto exit; - } - self->private_impl.f_height = v_n; + } + return wuffs_base__make_empty_struct(); +} +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 + +// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 +// -------- func png.decoder.filter_4_distance_3_x86_sse42 + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_3_x86_sse42( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + wuffs_base__slice_u8 v_curr = {0}; + wuffs_base__slice_u8 v_prev = {0}; + __m128i v_x128 = {0}; + __m128i v_a128 = {0}; + __m128i v_b128 = {0}; + __m128i v_c128 = {0}; + __m128i v_p128 = {0}; + __m128i v_pa128 = {0}; + __m128i v_pb128 = {0}; + __m128i v_pc128 = {0}; + __m128i v_smallest128 = {0}; + __m128i v_z128 = {0}; + + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + wuffs_base__slice_u8 i_slice_prev = a_prev; + v_prev.ptr = i_slice_prev.ptr; + i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, wuffs_private_impl__iterate_total_advance((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)), 7, 6)); + while (v_curr.ptr < i_end0_curr) { + v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); + v_pa128 = _mm_sub_epi16(v_b128, v_c128); + v_pb128 = _mm_sub_epi16(v_a128, v_c128); + v_pc128 = _mm_add_epi16(v_pa128, v_pb128); + v_pa128 = _mm_abs_epi16(v_pa128); + v_pb128 = _mm_abs_epi16(v_pb128); + v_pc128 = _mm_abs_epi16(v_pc128); + v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); + v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + v_c128 = v_b128; + v_x128 = _mm_packus_epi16(v_x128, v_x128); + wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 3; + v_prev.ptr += 3; + v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); + v_pa128 = _mm_sub_epi16(v_b128, v_c128); + v_pb128 = _mm_sub_epi16(v_a128, v_c128); + v_pc128 = _mm_add_epi16(v_pa128, v_pb128); + v_pa128 = _mm_abs_epi16(v_pa128); + v_pb128 = _mm_abs_epi16(v_pb128); + v_pc128 = _mm_abs_epi16(v_pc128); + v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); + v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + v_c128 = v_b128; + v_x128 = _mm_packus_epi16(v_x128, v_x128); + wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 3; + v_prev.ptr += 3; } - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_9 = *iop_a_src++; - v_c = t_9; - } - if ((v_c == 32u) || (v_c == 9u)) { - continue; - } else if (v_c == 35u) { - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_10 = *iop_a_src++; - v_c = t_10; - } - if (v_c == 10u) { - break; - } - } - continue; - } else if ((v_c < 48u) || (57u < v_c)) { - status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); - goto exit; - } - self->private_impl.f_max_value = ((uint32_t)(((uint8_t)(v_c - 48u)))); - break; + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, wuffs_private_impl__iterate_total_advance((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)), 4, 3)); + while (v_curr.ptr < i_end1_curr) { + v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); + v_pa128 = _mm_sub_epi16(v_b128, v_c128); + v_pb128 = _mm_sub_epi16(v_a128, v_c128); + v_pc128 = _mm_add_epi16(v_pa128, v_pb128); + v_pa128 = _mm_abs_epi16(v_pa128); + v_pb128 = _mm_abs_epi16(v_pb128); + v_pc128 = _mm_abs_epi16(v_pc128); + v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); + v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + v_c128 = v_b128; + v_x128 = _mm_packus_epi16(v_x128, v_x128); + wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 3; + v_prev.ptr += 3; } - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_11 = *iop_a_src++; - v_c = t_11; - } - if ((v_c == 32u) || (v_c == 9u) || (v_c == 13u)) { - continue; - } else if (v_c == 10u) { - break; - } else if ((v_c < 48u) || (57u < v_c)) { - status = wuffs_base__make_status(wuffs_netpbm__error__bad_header); - goto exit; - } - v_n = ((10u * self->private_impl.f_max_value) + ((uint32_t)(((uint8_t)(v_c - 48u))))); - if (v_n > 16777215u) { - status = wuffs_base__make_status(wuffs_netpbm__error__unsupported_netpbm_file); - goto exit; - } - self->private_impl.f_max_value = v_n; + v_curr.len = 3; + v_prev.len = 3; + const uint8_t* i_end2_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3)); + while (v_curr.ptr < i_end2_curr) { + v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u24le__no_bounds_check(v_prev.ptr))); + v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); + v_pa128 = _mm_sub_epi16(v_b128, v_c128); + v_pb128 = _mm_sub_epi16(v_a128, v_c128); + v_pc128 = _mm_add_epi16(v_pa128, v_pb128); + v_pa128 = _mm_abs_epi16(v_pa128); + v_pb128 = _mm_abs_epi16(v_pb128); + v_pc128 = _mm_abs_epi16(v_pc128); + v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); + v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u24le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_x128 = _mm_packus_epi16(v_x128, v_x128); + wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 3; + v_prev.ptr += 3; } - if (self->private_impl.f_max_value != 255u) { - status = wuffs_base__make_status(wuffs_netpbm__error__unsupported_netpbm_file); - goto exit; + v_curr.len = 0; + v_prev.len = 0; + } + return wuffs_base__make_empty_struct(); +} +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 + +// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 +// -------- func png.decoder.filter_4_distance_4_x86_sse42 + +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_png__decoder__filter_4_distance_4_x86_sse42( + wuffs_png__decoder* self, + wuffs_base__slice_u8 a_curr, + wuffs_base__slice_u8 a_prev) { + wuffs_base__slice_u8 v_curr = {0}; + wuffs_base__slice_u8 v_prev = {0}; + __m128i v_x128 = {0}; + __m128i v_a128 = {0}; + __m128i v_b128 = {0}; + __m128i v_c128 = {0}; + __m128i v_p128 = {0}; + __m128i v_pa128 = {0}; + __m128i v_pb128 = {0}; + __m128i v_pc128 = {0}; + __m128i v_smallest128 = {0}; + __m128i v_z128 = {0}; + + { + wuffs_base__slice_u8 i_slice_curr = a_curr; + v_curr.ptr = i_slice_curr.ptr; + wuffs_base__slice_u8 i_slice_prev = a_prev; + v_prev.ptr = i_slice_prev.ptr; + i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end0_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8)); + while (v_curr.ptr < i_end0_curr) { + v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); + v_pa128 = _mm_sub_epi16(v_b128, v_c128); + v_pb128 = _mm_sub_epi16(v_a128, v_c128); + v_pc128 = _mm_add_epi16(v_pa128, v_pb128); + v_pa128 = _mm_abs_epi16(v_pa128); + v_pb128 = _mm_abs_epi16(v_pb128); + v_pc128 = _mm_abs_epi16(v_pc128); + v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); + v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + v_c128 = v_b128; + v_x128 = _mm_packus_epi16(v_x128, v_x128); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; + v_prev.ptr += 4; + v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); + v_pa128 = _mm_sub_epi16(v_b128, v_c128); + v_pb128 = _mm_sub_epi16(v_a128, v_c128); + v_pc128 = _mm_add_epi16(v_pa128, v_pb128); + v_pa128 = _mm_abs_epi16(v_pa128); + v_pb128 = _mm_abs_epi16(v_pb128); + v_pc128 = _mm_abs_epi16(v_pc128); + v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); + v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + v_c128 = v_b128; + v_x128 = _mm_packus_epi16(v_x128, v_x128); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; + v_prev.ptr += 4; } - self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); - if (a_dst != NULL) { - wuffs_base__image_config__set( - a_dst, - self->private_impl.f_pixfmt, - 0u, - self->private_impl.f_width, - self->private_impl.f_height, - self->private_impl.f_frame_config_io_position, - false); + v_curr.len = 4; + v_prev.len = 4; + const uint8_t* i_end1_curr = wuffs_private_impl__ptr_u8_plus_len(v_curr.ptr, (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4)); + while (v_curr.ptr < i_end1_curr) { + v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); + v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); + v_pa128 = _mm_sub_epi16(v_b128, v_c128); + v_pb128 = _mm_sub_epi16(v_a128, v_c128); + v_pc128 = _mm_add_epi16(v_pa128, v_pb128); + v_pa128 = _mm_abs_epi16(v_pa128); + v_pb128 = _mm_abs_epi16(v_pb128); + v_pc128 = _mm_abs_epi16(v_pc128); + v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); + v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); + v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); + v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); + v_x128 = _mm_add_epi8(v_x128, v_p128); + v_a128 = v_x128; + v_c128 = v_b128; + v_x128 = _mm_packus_epi16(v_x128, v_x128); + wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); + v_curr.ptr += 4; + v_prev.ptr += 4; } - self->private_impl.f_call_sequence = 32u; + v_curr.len = 0; + v_prev.len = 0; + } + return wuffs_base__make_empty_struct(); +} +#endif // defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) +// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 - goto ok; - ok: - self->private_impl.p_do_decode_image_config = 0; - goto exit; +// -------- func png.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_png__decoder__get_quirk( + const wuffs_png__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - goto suspend; - suspend: - self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + if ((a_key == 1u) && self->private_impl.f_ignore_checksum) { + return 1u; + } + return 0u; +} - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); +// -------- func png.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_png__decoder__set_quirk( + wuffs_png__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); } - return status; + if (a_key == 1u) { + self->private_impl.f_ignore_checksum = (a_value > 0u); + wuffs_zlib__decoder__set_quirk(&self->private_data.f_zlib, a_key, a_value); + return wuffs_base__make_status(NULL); + } + return wuffs_base__make_status(wuffs_base__error__unsupported_option); } -// -------- func netpbm.decoder.decode_frame_config +// -------- func png.decoder.decode_image_config WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_netpbm__decoder__decode_frame_config( - wuffs_netpbm__decoder* self, - wuffs_base__frame_config* a_dst, +wuffs_png__decoder__decode_image_config( + wuffs_png__decoder* self, + wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src) { if (!self) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); @@ -53855,7 +66342,7 @@ wuffs_netpbm__decoder__decode_frame_config( return wuffs_base__make_status(wuffs_base__error__bad_argument); } if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 2)) { + (self->private_impl.active_coroutine != 1)) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } @@ -53864,17 +66351,17 @@ wuffs_netpbm__decoder__decode_frame_config( wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_decode_frame_config; + uint32_t coro_susp_point = self->private_impl.p_decode_image_config; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; while (true) { { - wuffs_base__status t_0 = wuffs_netpbm__decoder__do_decode_frame_config(self, a_dst, a_src); + wuffs_base__status t_0 = wuffs_png__decoder__do_decode_image_config(self, a_dst, a_src); v_status = t_0; } if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_netpbm__error__truncated_input); + status = wuffs_base__make_status(wuffs_png__error__truncated_input); goto exit; } status = v_status; @@ -53882,14 +66369,14 @@ wuffs_netpbm__decoder__decode_frame_config( } ok: - self->private_impl.p_decode_frame_config = 0; + self->private_impl.p_decode_image_config = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; + self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; goto exit; exit: @@ -53899,16 +66386,22 @@ wuffs_netpbm__decoder__decode_frame_config( return status; } -// -------- func netpbm.decoder.do_decode_frame_config +// -------- func png.decoder.do_decode_image_config WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_netpbm__decoder__do_decode_frame_config( - wuffs_netpbm__decoder* self, - wuffs_base__frame_config* a_dst, +wuffs_png__decoder__do_decode_image_config( + wuffs_png__decoder* self, + wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); + uint64_t v_magic = 0; + uint64_t v_mark = 0; + uint32_t v_checksum_have = 0; + uint32_t v_checksum_want = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -53920,247 +66413,302 @@ wuffs_netpbm__decoder__do_decode_frame_config( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config; + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; + if (coro_susp_point) { + v_checksum_have = self->private_data.s_do_decode_image_config.v_checksum_have; + } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_call_sequence == 32u) { - } else if (self->private_impl.f_call_sequence < 32u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_netpbm__decoder__do_decode_image_config(self, NULL, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; + if (self->private_impl.f_call_sequence != 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + goto exit; + } else if ( ! self->private_impl.f_seen_ihdr) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint64_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_0 = wuffs_base__peek_u64le__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 56) { + t_0 = ((uint64_t)(*scratch)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; + } + } + v_magic = t_0; } - } else if (self->private_impl.f_call_sequence == 40u) { - if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { - status = wuffs_base__make_status(wuffs_base__error__bad_restart); + if (v_magic != 727905341920923785u) { + status = wuffs_base__make_status(wuffs_png__error__bad_header); goto exit; } - } else if (self->private_impl.f_call_sequence == 64u) { - self->private_impl.f_call_sequence = 96u; - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } else { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } - if (a_dst != NULL) { - wuffs_base__frame_config__set( - a_dst, - wuffs_base__utility__make_rect_ie_u32( - 0u, - 0u, - self->private_impl.f_width, - self->private_impl.f_height), - ((wuffs_base__flicks)(0u)), - 0u, - self->private_impl.f_frame_config_io_position, - 0u, - false, - false, - 0u); - } - self->private_impl.f_call_sequence = 64u; - - ok: - self->private_impl.p_do_decode_frame_config = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - - return status; -} - -// -------- func netpbm.decoder.decode_frame - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_netpbm__decoder__decode_frame( - wuffs_netpbm__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 3)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - uint32_t coro_susp_point = self->private_impl.p_decode_frame; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - while (true) { { - wuffs_base__status t_0 = wuffs_netpbm__decoder__do_decode_frame(self, - a_dst, - a_src, - a_blend, - a_workbuf, - a_opts); - v_status = t_0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint64_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_1 = wuffs_base__peek_u64le__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 56) { + t_1 = ((uint64_t)(*scratch)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; + } + } + v_magic = t_1; } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_netpbm__error__truncated_input); + if (v_magic != 5927942488114331648u) { + if (v_magic == 5278895250759221248u) { + status = wuffs_base__make_status(wuffs_png__error__unsupported_cgbi_extension); + goto exit; + } + status = wuffs_base__make_status(wuffs_png__error__bad_header); goto exit; } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - } - - ok: - self->private_impl.p_decode_frame = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; - - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - } - return status; -} - -// -------- func netpbm.decoder.do_decode_frame - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_netpbm__decoder__do_decode_frame( - wuffs_netpbm__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - if (self->private_impl.f_call_sequence == 64u) { - } else if (self->private_impl.f_call_sequence < 64u) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_netpbm__decoder__do_decode_frame_config(self, NULL, a_src); - if (status.repr) { - goto suspend; + self->private_impl.f_chunk_type_array[0u] = 73u; + self->private_impl.f_chunk_type_array[1u] = 72u; + self->private_impl.f_chunk_type_array[2u] = 68u; + self->private_impl.f_chunk_type_array[3u] = 82u; + wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, + sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__make_slice_u8(self->private_impl.f_chunk_type_array, 4)); + while (true) { + v_mark = ((uint64_t)(iop_a_src - io0_a_src)); + { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_2 = wuffs_png__decoder__decode_ihdr(self, a_src); + v_status = t_2; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + if ( ! self->private_impl.f_ignore_checksum) { + v_checksum_have = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_private_impl__io__since(v_mark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); } - } else { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } - self->private_impl.f_dst_x = 0u; - self->private_impl.f_dst_y = 0u; - v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, - wuffs_base__pixel_buffer__pixel_format(a_dst), - wuffs_base__pixel_buffer__palette(a_dst), - wuffs_base__utility__make_pixel_format(self->private_impl.f_pixfmt), - wuffs_base__utility__empty_slice_u8(), - a_blend); - if ( ! wuffs_base__status__is_ok(&v_status)) { - status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + uint32_t t_3; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_3 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_3 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_3); + if (num_bits_3 == 24) { + t_3 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_3 += 8u; + *scratch |= ((uint64_t)(num_bits_3)); + } + } + v_checksum_want = t_3; + } + if ( ! self->private_impl.f_ignore_checksum && (v_checksum_have != v_checksum_want)) { + status = wuffs_base__make_status(wuffs_png__error__bad_checksum); goto exit; } + self->private_impl.f_seen_ihdr = true; + } else if (self->private_impl.f_metadata_fourcc != 0u) { + self->private_impl.f_call_sequence = 16u; + status = wuffs_base__make_status(wuffs_base__note__metadata_reported); goto ok; } while (true) { - v_status = wuffs_netpbm__decoder__swizzle(self, a_dst, a_src); - if (wuffs_base__status__is_ok(&v_status)) { - break; - } else if (v_status.repr != wuffs_netpbm__note__internal_note_short_read) { - status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; + if (((uint64_t)(io2_a_src - iop_a_src)) < 8u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); + continue; + } + self->private_impl.f_chunk_length = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + self->private_impl.f_chunk_type = ((uint32_t)((wuffs_base__peek_u64le__no_bounds_check(iop_a_src) >> 32u))); + if (self->private_impl.f_chunk_type == 1413563465u) { + if ( ! self->private_impl.f_seen_actl || self->private_impl.f_seen_fctl) { + break; + } + self->private_impl.f_seen_idat = true; + } else if (self->private_impl.f_chunk_type == 1413571686u) { + if (self->private_impl.f_seen_idat && self->private_impl.f_seen_fctl) { + break; + } + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + iop_a_src += 8u; + if ( ! self->private_impl.f_ignore_checksum && ((self->private_impl.f_chunk_type & 32u) == 0u)) { + self->private_impl.f_chunk_type_array[0u] = ((uint8_t)((self->private_impl.f_chunk_type >> 0u))); + self->private_impl.f_chunk_type_array[1u] = ((uint8_t)((self->private_impl.f_chunk_type >> 8u))); + self->private_impl.f_chunk_type_array[2u] = ((uint8_t)((self->private_impl.f_chunk_type >> 16u))); + self->private_impl.f_chunk_type_array[3u] = ((uint8_t)((self->private_impl.f_chunk_type >> 24u))); + wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, + sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__make_slice_u8(self->private_impl.f_chunk_type_array, 4)); + } + while (true) { + v_mark = ((uint64_t)(iop_a_src - io0_a_src)); + { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_4 = wuffs_png__decoder__decode_other_chunk(self, a_src, false); + v_status = t_4; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + if ( ! self->private_impl.f_ignore_checksum && ((self->private_impl.f_chunk_type & 32u) == 0u)) { + v_checksum_have = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_private_impl__io__since(v_mark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); + } + if (wuffs_base__status__is_ok(&v_status)) { + break; } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); + } + if (self->private_impl.f_metadata_fourcc != 0u) { + self->private_impl.f_call_sequence = 16u; + status = wuffs_base__make_status(wuffs_base__note__metadata_reported); goto ok; } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + uint32_t t_5; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_5 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_5 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_5); + if (num_bits_5 == 24) { + t_5 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_5 += 8u; + *scratch |= ((uint64_t)(num_bits_5)); + } + } + v_checksum_want = t_5; + } + if ( ! self->private_impl.f_ignore_checksum && ((self->private_impl.f_chunk_type & 32u) == 0u) && (v_checksum_have != v_checksum_want)) { + status = wuffs_base__make_status(wuffs_png__error__bad_checksum); + goto exit; + } } - self->private_impl.f_call_sequence = 96u; + if ((self->private_impl.f_color_type == 3u) && ! self->private_impl.f_seen_plte) { + status = wuffs_base__make_status(wuffs_png__error__missing_palette); + goto exit; + } + self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); + self->private_impl.f_first_config_io_position = self->private_impl.f_frame_config_io_position; + if (a_dst != NULL) { + wuffs_base__image_config__set( + a_dst, + self->private_impl.f_dst_pixfmt, + 0u, + self->private_impl.f_width, + self->private_impl.f_height, + self->private_impl.f_first_config_io_position, + ((self->private_impl.f_color_type <= 3u) && ! self->private_impl.f_seen_trns)); + } + if ( ! self->private_impl.f_seen_actl) { + self->private_impl.f_num_animation_frames_value = 1u; + self->private_impl.f_first_rect_x0 = 0u; + self->private_impl.f_first_rect_y0 = 0u; + self->private_impl.f_first_rect_x1 = self->private_impl.f_width; + self->private_impl.f_first_rect_y1 = self->private_impl.f_height; + self->private_impl.f_first_duration = 0u; + self->private_impl.f_first_disposal = 0u; + self->private_impl.f_first_overwrite_instead_of_blend = false; + } + self->private_impl.f_call_sequence = 32u; ok: - self->private_impl.p_do_decode_frame = 0; + self->private_impl.p_do_decode_image_config = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_decode_image_config.v_checksum_have = v_checksum_have; goto exit; exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + return status; } -// -------- func netpbm.decoder.swizzle +// -------- func png.decoder.decode_ihdr WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_netpbm__decoder__swizzle( - wuffs_netpbm__decoder* self, - wuffs_base__pixel_buffer* a_dst, +wuffs_png__decoder__decode_ihdr( + wuffs_png__decoder* self, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - wuffs_base__pixel_format v_dst_pixfmt = {0}; - uint32_t v_dst_bits_per_pixel = 0; - uint32_t v_dst_bytes_per_pixel = 0; - uint64_t v_dst_bytes_per_row = 0; - uint32_t v_src_bytes_per_pixel = 0; - wuffs_base__table_u8 v_tab = {0}; - wuffs_base__slice_u8 v_dst = {0}; - uint64_t v_i = 0; - uint64_t v_j = 0; - uint64_t v_n = 0; + uint32_t v_a32 = 0; + uint8_t v_a8 = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -54173,66 +66721,176 @@ wuffs_netpbm__decoder__swizzle( io2_a_src = io0_a_src + a_src->meta.wi; } - v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); - v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); - if ((v_dst_bits_per_pixel & 7u) != 0u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_option); - goto exit; - } - v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); - v_dst_bytes_per_row = ((uint64_t)((self->private_impl.f_width * v_dst_bytes_per_pixel))); - v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); - while (true) { - if (self->private_impl.f_dst_x == self->private_impl.f_width) { - self->private_impl.f_dst_x = 0u; - self->private_impl.f_dst_y += 1u; - if (self->private_impl.f_dst_y >= self->private_impl.f_height) { - break; + uint32_t coro_susp_point = self->private_impl.p_decode_ihdr; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_ihdr.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_ihdr.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); + } } + v_a32 = t_0; } - v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); - if (v_dst_bytes_per_row < ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row); + if ((v_a32 == 0u) || (v_a32 > 2147483647u)) { + status = wuffs_base__make_status(wuffs_png__error__bad_header); + goto exit; + } else if (v_a32 > 16777215u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); + goto exit; } - v_i = (((uint64_t)(self->private_impl.f_dst_x)) * ((uint64_t)(v_dst_bytes_per_pixel))); - if (v_i >= ((uint64_t)(v_dst.len))) { - v_src_bytes_per_pixel = 1u; - if (self->private_impl.f_pixfmt == 2684356744u) { - v_src_bytes_per_pixel = 3u; - } - v_n = (((uint64_t)(io2_a_src - iop_a_src)) / ((uint64_t)(v_src_bytes_per_pixel))); - v_n = wuffs_base__u64__min(v_n, ((uint64_t)(((uint32_t)(self->private_impl.f_width - self->private_impl.f_dst_x))))); - v_j = v_n; - while (v_j >= 8u) { - if (((uint64_t)(io2_a_src - iop_a_src)) >= ((uint64_t)((v_src_bytes_per_pixel * 8u)))) { - iop_a_src += (v_src_bytes_per_pixel * 8u); + self->private_impl.f_width = v_a32; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_ihdr.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_ihdr.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); + if (num_bits_1 == 24) { + t_1 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)); } - v_j -= 8u; } - while (v_j > 0u) { - if (((uint64_t)(io2_a_src - iop_a_src)) >= ((uint64_t)((v_src_bytes_per_pixel * 1u)))) { - iop_a_src += (v_src_bytes_per_pixel * 1u); - } - v_j -= 1u; + v_a32 = t_1; + } + if ((v_a32 == 0u) || (v_a32 > 2147483647u)) { + status = wuffs_base__make_status(wuffs_png__error__bad_header); + goto exit; + } else if (v_a32 > 16777215u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); + goto exit; + } + self->private_impl.f_height = v_a32; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + v_a8 = t_2; + } + if (v_a8 > 16u) { + status = wuffs_base__make_status(wuffs_png__error__bad_header); + goto exit; + } + self->private_impl.f_depth = v_a8; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_a8 = t_3; + } + if ((v_a8 == 1u) || (v_a8 == 5u) || (v_a8 > 6u)) { + status = wuffs_base__make_status(wuffs_png__error__bad_header); + goto exit; + } + self->private_impl.f_color_type = v_a8; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_4 = *iop_a_src++; + v_a8 = t_4; + } + if (v_a8 != 0u) { + status = wuffs_base__make_status(wuffs_png__error__unsupported_png_compression_method); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_5 = *iop_a_src++; + v_a8 = t_5; + } + if (v_a8 != 0u) { + status = wuffs_base__make_status(wuffs_png__error__bad_header); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } + uint8_t t_6 = *iop_a_src++; + v_a8 = t_6; + } + if (v_a8 == 0u) { + self->private_impl.f_interlace_pass = 0u; + } else if (v_a8 == 1u) { + self->private_impl.f_interlace_pass = 1u; + self->private_impl.choosy_filter_and_swizzle = ( + &wuffs_png__decoder__filter_and_swizzle_tricky); } else { - v_n = wuffs_base__pixel_swizzler__swizzle_interleaved_from_reader( - &self->private_impl.f_swizzler, - wuffs_base__slice_u8__subslice_i(v_dst, v_i), - wuffs_base__pixel_buffer__palette(a_dst), - &iop_a_src, - io2_a_src); + status = wuffs_base__make_status(wuffs_png__error__bad_header); + goto exit; } - if (v_n == 0u) { - status = wuffs_base__make_status(wuffs_netpbm__note__internal_note_short_read); - goto ok; + self->private_impl.f_filter_distance = 0u; + wuffs_png__decoder__assign_filter_distance(self); + if (self->private_impl.f_filter_distance == 0u) { + status = wuffs_base__make_status(wuffs_png__error__bad_header); + goto exit; } - wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(v_n))); + self->private_impl.f_overall_workbuf_length = (((uint64_t)(self->private_impl.f_height)) * (1u + wuffs_png__decoder__calculate_bytes_per_row(self, self->private_impl.f_width))); + wuffs_png__decoder__choose_filter_implementations(self); + + goto ok; + ok: + self->private_impl.p_decode_ihdr = 0; + goto exit; } - status = wuffs_base__make_status(NULL); - goto ok; - ok: + goto suspend; + suspend: + self->private_impl.p_decode_ihdr = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + goto exit; exit: if (a_src && a_src->data.ptr) { @@ -54242,456 +66900,866 @@ wuffs_netpbm__decoder__swizzle( return status; } -// -------- func netpbm.decoder.frame_dirty_rect - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 -wuffs_netpbm__decoder__frame_dirty_rect( - const wuffs_netpbm__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_rect_ie_u32(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_rect_ie_u32(); - } - - return wuffs_base__utility__make_rect_ie_u32( - 0u, - 0u, - self->private_impl.f_width, - self->private_impl.f_height); -} - -// -------- func netpbm.decoder.num_animation_loops - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_netpbm__decoder__num_animation_loops( - const wuffs_netpbm__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - return 0u; -} - -// -------- func netpbm.decoder.num_decoded_frame_configs - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_netpbm__decoder__num_decoded_frame_configs( - const wuffs_netpbm__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - if (self->private_impl.f_call_sequence > 32u) { - return 1u; - } - return 0u; -} - -// -------- func netpbm.decoder.num_decoded_frames - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_netpbm__decoder__num_decoded_frames( - const wuffs_netpbm__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - if (self->private_impl.f_call_sequence > 64u) { - return 1u; - } - return 0u; -} - -// -------- func netpbm.decoder.restart_frame +// -------- func png.decoder.assign_filter_distance WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_netpbm__decoder__restart_frame( - wuffs_netpbm__decoder* self, - uint64_t a_index, - uint64_t a_io_position) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - - if (self->private_impl.f_call_sequence < 32u) { - return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - } - if ((a_index != 0u) || (a_io_position != self->private_impl.f_frame_config_io_position)) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); +static wuffs_base__empty_struct +wuffs_png__decoder__assign_filter_distance( + wuffs_png__decoder* self) { + if (self->private_impl.f_depth < 8u) { + if ((self->private_impl.f_depth != 1u) && (self->private_impl.f_depth != 2u) && (self->private_impl.f_depth != 4u)) { + return wuffs_base__make_empty_struct(); + } else if (self->private_impl.f_color_type == 0u) { + self->private_impl.f_dst_pixfmt = 536870920u; + self->private_impl.f_src_pixfmt = 536870920u; + } else if (self->private_impl.f_color_type == 3u) { + self->private_impl.f_dst_pixfmt = 2198077448u; + self->private_impl.f_src_pixfmt = 2198077448u; + } else { + return wuffs_base__make_empty_struct(); + } + self->private_impl.f_filter_distance = 1u; + self->private_impl.choosy_filter_and_swizzle = ( + &wuffs_png__decoder__filter_and_swizzle_tricky); + } else if (self->private_impl.f_color_type == 0u) { + if (self->private_impl.f_depth == 8u) { + self->private_impl.f_dst_pixfmt = 536870920u; + self->private_impl.f_src_pixfmt = 536870920u; + self->private_impl.f_filter_distance = 1u; + } else if (self->private_impl.f_depth == 16u) { + if (self->private_impl.f_interlace_pass == 0u) { + self->private_impl.f_dst_pixfmt = 536870923u; + self->private_impl.f_src_pixfmt = 537919499u; + } else { + self->private_impl.f_dst_pixfmt = 2164308923u; + self->private_impl.f_src_pixfmt = 2164308923u; + } + self->private_impl.f_filter_distance = 2u; + } + } else if (self->private_impl.f_color_type == 2u) { + if (self->private_impl.f_depth == 8u) { + self->private_impl.f_dst_pixfmt = 2147485832u; + self->private_impl.f_src_pixfmt = 2684356744u; + self->private_impl.f_filter_distance = 3u; + } else if (self->private_impl.f_depth == 16u) { + self->private_impl.f_dst_pixfmt = 2164308923u; + self->private_impl.f_src_pixfmt = 2164308923u; + self->private_impl.f_filter_distance = 6u; + self->private_impl.choosy_filter_and_swizzle = ( + &wuffs_png__decoder__filter_and_swizzle_tricky); + } + } else if (self->private_impl.f_color_type == 3u) { + if (self->private_impl.f_depth == 8u) { + self->private_impl.f_dst_pixfmt = 2198077448u; + self->private_impl.f_src_pixfmt = 2198077448u; + self->private_impl.f_filter_distance = 1u; + } + } else if (self->private_impl.f_color_type == 4u) { + if (self->private_impl.f_depth == 8u) { + self->private_impl.f_dst_pixfmt = 553648264u; + self->private_impl.f_src_pixfmt = 553648264u; + self->private_impl.f_filter_distance = 2u; + } else if (self->private_impl.f_depth == 16u) { + self->private_impl.f_dst_pixfmt = 2164308923u; + self->private_impl.f_src_pixfmt = 2164308923u; + self->private_impl.f_filter_distance = 4u; + self->private_impl.choosy_filter_and_swizzle = ( + &wuffs_png__decoder__filter_and_swizzle_tricky); + } + } else if (self->private_impl.f_color_type == 6u) { + if (self->private_impl.f_depth == 8u) { + self->private_impl.f_dst_pixfmt = 2164295816u; + self->private_impl.f_src_pixfmt = 2701166728u; + self->private_impl.f_filter_distance = 4u; + } else if (self->private_impl.f_depth == 16u) { + self->private_impl.f_dst_pixfmt = 2164308923u; + self->private_impl.f_src_pixfmt = 2164308923u; + self->private_impl.f_filter_distance = 8u; + self->private_impl.choosy_filter_and_swizzle = ( + &wuffs_png__decoder__filter_and_swizzle_tricky); + } } - self->private_impl.f_call_sequence = 40u; - return wuffs_base__make_status(NULL); -} - -// -------- func netpbm.decoder.set_report_metadata - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_netpbm__decoder__set_report_metadata( - wuffs_netpbm__decoder* self, - uint32_t a_fourcc, - bool a_report) { return wuffs_base__make_empty_struct(); } -// -------- func netpbm.decoder.tell_me_more +// -------- func png.decoder.calculate_bytes_per_row WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_netpbm__decoder__tell_me_more( - wuffs_netpbm__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 4)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - - status = wuffs_base__make_status(wuffs_base__error__no_more_information); - goto exit; +static uint64_t +wuffs_png__decoder__calculate_bytes_per_row( + const wuffs_png__decoder* self, + uint32_t a_width) { + uint64_t v_bytes_per_channel = 0; - goto ok; - ok: - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; + if (self->private_impl.f_depth == 1u) { + return ((uint64_t)(((a_width + 7u) / 8u))); + } else if (self->private_impl.f_depth == 2u) { + return ((uint64_t)(((a_width + 3u) / 4u))); + } else if (self->private_impl.f_depth == 4u) { + return ((uint64_t)(((a_width + 1u) / 2u))); } - return status; + v_bytes_per_channel = ((uint64_t)(((uint8_t)(self->private_impl.f_depth >> 3u)))); + return (((uint64_t)(a_width)) * v_bytes_per_channel * ((uint64_t)(WUFFS_PNG__NUM_CHANNELS[self->private_impl.f_color_type]))); } -// -------- func netpbm.decoder.workbuf_len +// -------- func png.decoder.choose_filter_implementations WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_netpbm__decoder__workbuf_len( - const wuffs_netpbm__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); +static wuffs_base__empty_struct +wuffs_png__decoder__choose_filter_implementations( + wuffs_png__decoder* self) { + if (self->private_impl.f_filter_distance == 3u) { + self->private_impl.choosy_filter_1 = ( + &wuffs_png__decoder__filter_1_distance_3_fallback); + self->private_impl.choosy_filter_3 = ( + &wuffs_png__decoder__filter_3_distance_3_fallback); + self->private_impl.choosy_filter_4 = ( +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) + wuffs_base__cpu_arch__have_arm_neon() ? &wuffs_png__decoder__filter_4_distance_3_arm_neon : +#endif +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_png__decoder__filter_4_distance_3_x86_sse42 : +#endif + &wuffs_png__decoder__filter_4_distance_3_fallback); + } else if (self->private_impl.f_filter_distance == 4u) { + self->private_impl.choosy_filter_1 = ( +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) + wuffs_base__cpu_arch__have_arm_neon() ? &wuffs_png__decoder__filter_1_distance_4_arm_neon : +#endif +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_png__decoder__filter_1_distance_4_x86_sse42 : +#endif + &wuffs_png__decoder__filter_1_distance_4_fallback); + self->private_impl.choosy_filter_3 = ( +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) + wuffs_base__cpu_arch__have_arm_neon() ? &wuffs_png__decoder__filter_3_distance_4_arm_neon : +#endif +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_png__decoder__filter_3_distance_4_x86_sse42 : +#endif + &wuffs_png__decoder__filter_3_distance_4_fallback); + self->private_impl.choosy_filter_4 = ( +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__ARM_NEON) + wuffs_base__cpu_arch__have_arm_neon() ? &wuffs_png__decoder__filter_4_distance_4_arm_neon : +#endif +#if defined(WUFFS_PRIVATE_IMPL__CPU_ARCH__X86_64_V2) + wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_png__decoder__filter_4_distance_4_x86_sse42 : +#endif + &wuffs_png__decoder__filter_4_distance_4_fallback); } - - return wuffs_base__utility__make_range_ii_u64(0u, 0u); + return wuffs_base__make_empty_struct(); } -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NETPBM) - -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NIE) - -// ---------------- Status Codes Implementations - -const char wuffs_nie__error__bad_header[] = "#nie: bad header"; -const char wuffs_nie__error__truncated_input[] = "#nie: truncated input"; -const char wuffs_nie__error__unsupported_nie_file[] = "#nie: unsupported NIE file"; -const char wuffs_nie__note__internal_note_short_read[] = "@nie: internal note: short read"; - -// ---------------- Private Consts - -// ---------------- Private Initializer Prototypes - -// ---------------- Private Function Prototypes - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_nie__decoder__do_decode_image_config( - wuffs_nie__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_nie__decoder__do_decode_frame_config( - wuffs_nie__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src); +// -------- func png.decoder.decode_other_chunk WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_nie__decoder__do_decode_frame( - wuffs_nie__decoder* self, - wuffs_base__pixel_buffer* a_dst, +wuffs_png__decoder__decode_other_chunk( + wuffs_png__decoder* self, wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_nie__decoder__swizzle( - wuffs_nie__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src); - -// ---------------- VTables - -const wuffs_base__image_decoder__func_ptrs -wuffs_nie__decoder__func_ptrs_for__wuffs_base__image_decoder = { - (wuffs_base__status(*)(void*, - wuffs_base__pixel_buffer*, - wuffs_base__io_buffer*, - wuffs_base__pixel_blend, - wuffs_base__slice_u8, - wuffs_base__decode_frame_options*))(&wuffs_nie__decoder__decode_frame), - (wuffs_base__status(*)(void*, - wuffs_base__frame_config*, - wuffs_base__io_buffer*))(&wuffs_nie__decoder__decode_frame_config), - (wuffs_base__status(*)(void*, - wuffs_base__image_config*, - wuffs_base__io_buffer*))(&wuffs_nie__decoder__decode_image_config), - (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_nie__decoder__frame_dirty_rect), - (uint64_t(*)(const void*, - uint32_t))(&wuffs_nie__decoder__get_quirk), - (uint32_t(*)(const void*))(&wuffs_nie__decoder__num_animation_loops), - (uint64_t(*)(const void*))(&wuffs_nie__decoder__num_decoded_frame_configs), - (uint64_t(*)(const void*))(&wuffs_nie__decoder__num_decoded_frames), - (wuffs_base__status(*)(void*, - uint64_t, - uint64_t))(&wuffs_nie__decoder__restart_frame), - (wuffs_base__status(*)(void*, - uint32_t, - uint64_t))(&wuffs_nie__decoder__set_quirk), - (wuffs_base__empty_struct(*)(void*, - uint32_t, - bool))(&wuffs_nie__decoder__set_report_metadata), - (wuffs_base__status(*)(void*, - wuffs_base__io_buffer*, - wuffs_base__more_information*, - wuffs_base__io_buffer*))(&wuffs_nie__decoder__tell_me_more), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_nie__decoder__workbuf_len), -}; - -// ---------------- Initializer Implementations + bool a_framy) { + wuffs_base__status status = wuffs_base__make_status(NULL); -wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_nie__decoder__initialize( - wuffs_nie__decoder* self, - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options){ - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (sizeof(*self) != sizeof_star_self) { - return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); - } - if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || - (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { - return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { - // The whole point of this if-check is to detect an uninitialized *self. - // We disable the warning on GCC. Clang-5.0 does not have this warning. -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" -#endif - if (self->private_impl.magic != 0) { - return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + uint32_t coro_susp_point = self->private_impl.p_decode_other_chunk; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if ((self->private_impl.f_chunk_type == 1163152464u) && ! a_framy) { + if (self->private_impl.f_seen_plte) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } else if (self->private_impl.f_color_type == 3u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_png__decoder__decode_plte(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else if ((self->private_impl.f_color_type == 2u) || (self->private_impl.f_color_type == 6u)) { + } else { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_seen_plte = true; + } else if ((self->private_impl.f_chunk_type & 32u) == 0u) { + if (self->private_impl.f_chunk_type != 1413563465u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } } -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } else { - if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { - memset(self, 0, sizeof(*self)); - options |= WUFFS_INITIALIZE__ALREADY_ZEROED; - } else { - memset(&(self->private_impl), 0, sizeof(self->private_impl)); + if (self->private_impl.f_chunk_type == 1716082789u) { + if (self->private_impl.f_report_metadata_exif) { + if (self->private_impl.f_seen_exif) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + status = wuffs_png__decoder__decode_exif(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + self->private_impl.f_seen_exif = true; + } + } else if ((self->private_impl.f_chunk_type == 1951945833u) || (self->private_impl.f_chunk_type == 1951942004u) || (self->private_impl.f_chunk_type == 1951945850u)) { + if (self->private_impl.f_report_metadata_kvp) { + self->private_impl.f_metadata_flavor = 4u; + self->private_impl.f_metadata_fourcc = 1263947851u; + self->private_impl.f_metadata_x = 0u; + self->private_impl.f_metadata_y = 0u; + self->private_impl.f_metadata_z = 0u; + } + } else if ( ! a_framy) { + if (self->private_impl.f_chunk_type == 1280598881u) { + if (self->private_impl.f_seen_actl) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + status = wuffs_png__decoder__decode_actl(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + self->private_impl.f_seen_actl = true; + } else if (self->private_impl.f_chunk_type == 1297238115u) { + if (self->private_impl.f_report_metadata_chrm) { + if (self->private_impl.f_seen_chrm) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + status = wuffs_png__decoder__decode_chrm(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + self->private_impl.f_seen_chrm = true; + } + } else if (self->private_impl.f_chunk_type == 1280598886u) { + if (self->private_impl.f_seen_fctl) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + status = wuffs_png__decoder__decode_fctl(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + self->private_impl.f_seen_fctl = true; + } else if (self->private_impl.f_chunk_type == 1095582055u) { + if (self->private_impl.f_report_metadata_gama) { + if (self->private_impl.f_seen_gama) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + status = wuffs_png__decoder__decode_gama(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + self->private_impl.f_seen_gama = true; + } + } else if (self->private_impl.f_chunk_type == 1346585449u) { + if (self->private_impl.f_report_metadata_iccp) { + if (self->private_impl.f_seen_iccp) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + status = wuffs_png__decoder__decode_iccp(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + self->private_impl.f_seen_iccp = true; + } + } else if (self->private_impl.f_chunk_type == 1111970419u) { + if (self->private_impl.f_report_metadata_srgb) { + if (self->private_impl.f_seen_srgb) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + status = wuffs_png__decoder__decode_srgb(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + self->private_impl.f_seen_srgb = true; + } + } else if (self->private_impl.f_chunk_type == 1397641844u) { + if (self->private_impl.f_seen_trns || ((self->private_impl.f_color_type == 3u) && ! self->private_impl.f_seen_plte)) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } else if (self->private_impl.f_color_type > 3u) { + } else { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + status = wuffs_png__decoder__decode_trns(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } + self->private_impl.f_seen_trns = true; + } + } + if (self->private_impl.f_metadata_fourcc == 0u) { + self->private_data.s_decode_other_chunk.scratch = self->private_impl.f_chunk_length; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + if (self->private_data.s_decode_other_chunk.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_decode_other_chunk.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_decode_other_chunk.scratch; } + + goto ok; + ok: + self->private_impl.p_decode_other_chunk = 0; + goto exit; } - self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = - wuffs_base__image_decoder__vtable_name; - self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = - (const void*)(&wuffs_nie__decoder__func_ptrs_for__wuffs_base__image_decoder); - return wuffs_base__make_status(NULL); -} + goto suspend; + suspend: + self->private_impl.p_decode_other_chunk = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; -wuffs_nie__decoder* -wuffs_nie__decoder__alloc(void) { - wuffs_nie__decoder* x = - (wuffs_nie__decoder*)(calloc(sizeof(wuffs_nie__decoder), 1)); - if (!x) { - return NULL; - } - if (wuffs_nie__decoder__initialize( - x, sizeof(wuffs_nie__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - return x; -} -size_t -sizeof__wuffs_nie__decoder(void) { - return sizeof(wuffs_nie__decoder); + return status; } -// ---------------- Function Implementations +// -------- func png.decoder.decode_actl + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_actl( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_actl; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; -// -------- func nie.decoder.get_quirk + if (self->private_impl.f_chunk_length != 8u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } else if (self->private_impl.f_interlace_pass > 0u) { + status = wuffs_base__make_status(wuffs_png__error__unsupported_png_file); + goto exit; + } + self->private_impl.f_chunk_length = 0u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_actl.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_actl.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); + } + } + self->private_impl.f_num_animation_frames_value = t_0; + } + if (self->private_impl.f_num_animation_frames_value == 0u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_actl.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_actl.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); + if (num_bits_1 == 24) { + t_1 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)); + } + } + self->private_impl.f_num_animation_loops_value = t_1; + } -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_nie__decoder__get_quirk( - const wuffs_nie__decoder* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + goto ok; + ok: + self->private_impl.p_decode_actl = 0; + goto exit; } - return 0u; -} - -// -------- func nie.decoder.set_quirk + goto suspend; + suspend: + self->private_impl.p_decode_actl = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_nie__decoder__set_quirk( - wuffs_nie__decoder* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - return wuffs_base__make_status(wuffs_base__error__unsupported_option); + return status; } -// -------- func nie.decoder.decode_image_config +// -------- func png.decoder.decode_chrm WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_nie__decoder__decode_image_config( - wuffs_nie__decoder* self, - wuffs_base__image_config* a_dst, +static wuffs_base__status +wuffs_png__decoder__decode_chrm( + wuffs_png__decoder* self, wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 1)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint64_t v_u = 0; - uint32_t coro_susp_point = self->private_impl.p_decode_image_config; + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_chrm; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - while (true) { - { - wuffs_base__status t_0 = wuffs_nie__decoder__do_decode_image_config(self, a_dst, a_src); - v_status = t_0; + if (self->private_impl.f_chunk_length != 32u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_length = 0u; + self->private_impl.f_metadata_flavor = 5u; + self->private_impl.f_metadata_fourcc = 1128813133u; + self->private_impl.f_metadata_x = 0u; + self->private_impl.f_metadata_y = 0u; + self->private_impl.f_metadata_z = 0u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint64_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); + iop_a_src += 4; + } else { + self->private_data.s_decode_chrm.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 24) { + t_0 = ((uint64_t)(*scratch >> 32)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); + } } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_nie__error__truncated_input); - goto exit; + v_u = t_0; + } + self->private_impl.f_metadata_x |= ((16777215u & v_u) << 0u); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint64_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); + iop_a_src += 4; + } else { + self->private_data.s_decode_chrm.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); + if (num_bits_1 == 24) { + t_1 = ((uint64_t)(*scratch >> 32)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)); + } } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + v_u = t_1; + } + self->private_impl.f_metadata_x |= ((16777215u & v_u) << 24u); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + uint64_t t_2; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_2 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); + iop_a_src += 4; + } else { + self->private_data.s_decode_chrm.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_2); + if (num_bits_2 == 24) { + t_2 = ((uint64_t)(*scratch >> 32)); + break; + } + num_bits_2 += 8u; + *scratch |= ((uint64_t)(num_bits_2)); + } + } + v_u = t_2; + } + self->private_impl.f_metadata_x |= ((uint64_t)((16777215u & v_u) << 48u)); + self->private_impl.f_metadata_y |= ((16777215u & v_u) >> 16u); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + uint64_t t_3; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_3 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); + iop_a_src += 4; + } else { + self->private_data.s_decode_chrm.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; + uint32_t num_bits_3 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_3); + if (num_bits_3 == 24) { + t_3 = ((uint64_t)(*scratch >> 32)); + break; + } + num_bits_3 += 8u; + *scratch |= ((uint64_t)(num_bits_3)); + } + } + v_u = t_3; + } + self->private_impl.f_metadata_y |= ((16777215u & v_u) << 8u); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + uint64_t t_4; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_4 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); + iop_a_src += 4; + } else { + self->private_data.s_decode_chrm.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; + uint32_t num_bits_4 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_4); + if (num_bits_4 == 24) { + t_4 = ((uint64_t)(*scratch >> 32)); + break; + } + num_bits_4 += 8u; + *scratch |= ((uint64_t)(num_bits_4)); + } + } + v_u = t_4; + } + self->private_impl.f_metadata_y |= ((16777215u & v_u) << 32u); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); + uint64_t t_5; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_5 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); + iop_a_src += 4; + } else { + self->private_data.s_decode_chrm.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; + uint32_t num_bits_5 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_5); + if (num_bits_5 == 24) { + t_5 = ((uint64_t)(*scratch >> 32)); + break; + } + num_bits_5 += 8u; + *scratch |= ((uint64_t)(num_bits_5)); + } + } + v_u = t_5; + } + self->private_impl.f_metadata_y |= ((uint64_t)((16777215u & v_u) << 56u)); + self->private_impl.f_metadata_z |= ((16777215u & v_u) >> 8u); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); + uint64_t t_6; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_6 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); + iop_a_src += 4; + } else { + self->private_data.s_decode_chrm.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; + uint32_t num_bits_6 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_6); + if (num_bits_6 == 24) { + t_6 = ((uint64_t)(*scratch >> 32)); + break; + } + num_bits_6 += 8u; + *scratch |= ((uint64_t)(num_bits_6)); + } + } + v_u = t_6; + } + self->private_impl.f_metadata_z |= ((16777215u & v_u) << 16u); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); + uint64_t t_7; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_7 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); + iop_a_src += 4; + } else { + self->private_data.s_decode_chrm.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; + uint32_t num_bits_7 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_7); + if (num_bits_7 == 24) { + t_7 = ((uint64_t)(*scratch >> 32)); + break; + } + num_bits_7 += 8u; + *scratch |= ((uint64_t)(num_bits_7)); + } + } + v_u = t_7; } + self->private_impl.f_metadata_z |= ((16777215u & v_u) << 40u); + goto ok; ok: - self->private_impl.p_decode_image_config = 0; + self->private_impl.p_decode_chrm = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + self->private_impl.p_decode_chrm = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } + return status; } -// -------- func nie.decoder.do_decode_image_config +// -------- func png.decoder.decode_exif WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_nie__decoder__do_decode_image_config( - wuffs_nie__decoder* self, - wuffs_base__image_config* a_dst, +wuffs_png__decoder__decode_exif( + wuffs_png__decoder* self, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t v_a = 0; + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + if (self->private_impl.f_chunk_length < 4u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_metadata_flavor = 3u; + self->private_impl.f_metadata_fourcc = 1163413830u; + self->private_impl.f_metadata_x = 0u; + self->private_impl.f_metadata_y = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); + self->private_impl.f_metadata_z = wuffs_base__u64__sat_add(self->private_impl.f_metadata_y, ((uint64_t)(self->private_impl.f_chunk_length))); + self->private_impl.f_chunk_length = 0u; + + goto ok; + ok: + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func png.decoder.decode_fctl + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_fctl( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_x0 = 0; + uint32_t v_y0 = 0; + uint32_t v_x1 = 0; + uint32_t v_y1 = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -54704,185 +67772,309 @@ wuffs_nie__decoder__do_decode_image_config( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; + uint32_t coro_susp_point = self->private_impl.p_decode_fctl; + if (coro_susp_point) { + v_x0 = self->private_data.s_decode_fctl.v_x0; + v_x1 = self->private_data.s_decode_fctl.v_x1; + v_y1 = self->private_data.s_decode_fctl.v_y1; + } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_call_sequence != 0u) { - status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + if (self->private_impl.f_chunk_length != 26u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); goto exit; } + self->private_impl.f_chunk_length = 0u; { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); uint32_t t_0; if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_0 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); iop_a_src += 4; } else { - self->private_data.s_do_decode_image_config.scratch = 0; + self->private_data.s_decode_fctl.scratch = 0; WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; + uint64_t* scratch = &self->private_data.s_decode_fctl.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); if (num_bits_0 == 24) { - t_0 = ((uint32_t)(*scratch)); + t_0 = ((uint32_t)(*scratch >> 32)); break; } num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)) << 56; + *scratch |= ((uint64_t)(num_bits_0)); } } - v_a = t_0; + v_x0 = t_0; } - if (v_a != 1169146734u) { - status = wuffs_base__make_status(wuffs_nie__error__bad_header); + if (v_x0 != self->private_impl.f_next_animation_seq_num) { + status = wuffs_base__make_status(wuffs_png__error__bad_animation_sequence_number); + goto exit; + } else if (self->private_impl.f_next_animation_seq_num >= 4294967295u) { + status = wuffs_base__make_status(wuffs_png__error__unsupported_png_file); goto exit; } + self->private_impl.f_next_animation_seq_num += 1u; { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); uint32_t t_1; if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_1 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + t_1 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); iop_a_src += 4; } else { - self->private_data.s_do_decode_image_config.scratch = 0; + self->private_data.s_decode_fctl.scratch = 0; WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; + uint64_t* scratch = &self->private_data.s_decode_fctl.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); if (num_bits_1 == 24) { - t_1 = ((uint32_t)(*scratch)); + t_1 = ((uint32_t)(*scratch >> 32)); break; } num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)) << 56; + *scratch |= ((uint64_t)(num_bits_1)); } } - v_a = t_1; - } - if (v_a == 879649535u) { - self->private_impl.f_pixfmt = 2164295816u; - } else if (v_a == 946758399u) { - self->private_impl.f_pixfmt = 2164308923u; - } else if (v_a == 879780607u) { - status = wuffs_base__make_status(wuffs_nie__error__unsupported_nie_file); - goto exit; - } else if (v_a == 946889471u) { - status = wuffs_base__make_status(wuffs_nie__error__unsupported_nie_file); - goto exit; - } else { - status = wuffs_base__make_status(wuffs_nie__error__bad_header); - goto exit; + v_x1 = t_1; } { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); uint32_t t_2; if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_2 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + t_2 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); iop_a_src += 4; } else { - self->private_data.s_do_decode_image_config.scratch = 0; + self->private_data.s_decode_fctl.scratch = 0; WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; - uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; + uint64_t* scratch = &self->private_data.s_decode_fctl.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch & 0xFFu)); *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_2); if (num_bits_2 == 24) { - t_2 = ((uint32_t)(*scratch)); + t_2 = ((uint32_t)(*scratch >> 32)); break; } num_bits_2 += 8u; - *scratch |= ((uint64_t)(num_bits_2)) << 56; + *scratch |= ((uint64_t)(num_bits_2)); } } - v_a = t_2; - } - if (v_a > 2147483647u) { - status = wuffs_base__make_status(wuffs_nie__error__bad_header); - goto exit; - } else if (v_a > 16777215u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); - goto exit; + v_y1 = t_2; } - self->private_impl.f_width = v_a; { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); uint32_t t_3; if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_3 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + t_3 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); iop_a_src += 4; } else { - self->private_data.s_do_decode_image_config.scratch = 0; + self->private_data.s_decode_fctl.scratch = 0; WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; - uint32_t num_bits_3 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; + uint64_t* scratch = &self->private_data.s_decode_fctl.scratch; + uint32_t num_bits_3 = ((uint32_t)(*scratch & 0xFFu)); *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_3; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_3); if (num_bits_3 == 24) { - t_3 = ((uint32_t)(*scratch)); + t_3 = ((uint32_t)(*scratch >> 32)); break; } num_bits_3 += 8u; - *scratch |= ((uint64_t)(num_bits_3)) << 56; + *scratch |= ((uint64_t)(num_bits_3)); } } - v_a = t_3; + v_x0 = t_3; } - if (v_a > 2147483647u) { - status = wuffs_base__make_status(wuffs_nie__error__bad_header); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + uint32_t t_4; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_4 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_fctl.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_fctl.scratch; + uint32_t num_bits_4 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_4); + if (num_bits_4 == 24) { + t_4 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_4 += 8u; + *scratch |= ((uint64_t)(num_bits_4)); + } + } + v_y0 = t_4; + } + v_x1 += v_x0; + v_y1 += v_y0; + if ((v_x0 >= v_x1) || + (v_x0 > self->private_impl.f_width) || + (v_x1 > self->private_impl.f_width) || + (v_y0 >= v_y1) || + (v_y0 > self->private_impl.f_height) || + (v_y1 > self->private_impl.f_height)) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); goto exit; - } else if (v_a > 16777215u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); + } + self->private_impl.f_frame_rect_x0 = v_x0; + self->private_impl.f_frame_rect_y0 = v_y0; + self->private_impl.f_frame_rect_x1 = v_x1; + self->private_impl.f_frame_rect_y1 = v_y1; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); + uint32_t t_5; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_5 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_decode_fctl.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_fctl.scratch; + uint32_t num_bits_5 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_5); + if (num_bits_5 == 8) { + t_5 = ((uint32_t)(*scratch >> 48)); + break; + } + num_bits_5 += 8u; + *scratch |= ((uint64_t)(num_bits_5)); + } + } + v_x0 = t_5; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); + uint32_t t_6; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_6 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_decode_fctl.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_fctl.scratch; + uint32_t num_bits_6 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_6); + if (num_bits_6 == 8) { + t_6 = ((uint32_t)(*scratch >> 48)); + break; + } + num_bits_6 += 8u; + *scratch |= ((uint64_t)(num_bits_6)); + } + } + v_x1 = t_6; + } + if (v_x1 <= 0u) { + self->private_impl.f_frame_duration = (((uint64_t)(v_x0)) * 7056000u); + } else { + self->private_impl.f_frame_duration = ((((uint64_t)(v_x0)) * 705600000u) / ((uint64_t)(v_x1))); + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint32_t t_7 = *iop_a_src++; + v_x0 = t_7; + } + if (v_x0 == 0u) { + self->private_impl.f_frame_disposal = 0u; + } else if (v_x0 == 1u) { + self->private_impl.f_frame_disposal = 1u; + } else if (v_x0 == 2u) { + self->private_impl.f_frame_disposal = 2u; + } else { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); goto exit; } - self->private_impl.f_height = v_a; - if (a_dst != NULL) { - wuffs_base__image_config__set( - a_dst, - self->private_impl.f_pixfmt, - 0u, - self->private_impl.f_width, - self->private_impl.f_height, - 16u, - false); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint32_t t_8 = *iop_a_src++; + v_x0 = t_8; + } + if (v_x0 == 0u) { + self->private_impl.f_frame_overwrite_instead_of_blend = true; + } else if (v_x0 == 1u) { + self->private_impl.f_frame_overwrite_instead_of_blend = false; + } else { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + if (self->private_impl.f_num_decoded_frame_configs_value == 0u) { + self->private_impl.f_first_rect_x0 = self->private_impl.f_frame_rect_x0; + self->private_impl.f_first_rect_y0 = self->private_impl.f_frame_rect_y0; + self->private_impl.f_first_rect_x1 = self->private_impl.f_frame_rect_x1; + self->private_impl.f_first_rect_y1 = self->private_impl.f_frame_rect_y1; + self->private_impl.f_first_duration = self->private_impl.f_frame_duration; + self->private_impl.f_first_disposal = self->private_impl.f_frame_disposal; + self->private_impl.f_first_overwrite_instead_of_blend = self->private_impl.f_frame_overwrite_instead_of_blend; } - self->private_impl.f_call_sequence = 32u; goto ok; ok: - self->private_impl.p_do_decode_image_config = 0; + self->private_impl.p_decode_fctl = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_decode_fctl = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_fctl.v_x0 = v_x0; + self->private_data.s_decode_fctl.v_x1 = v_x1; + self->private_data.s_decode_fctl.v_y1 = v_y1; goto exit; exit: @@ -54893,79 +68085,12 @@ wuffs_nie__decoder__do_decode_image_config( return status; } -// -------- func nie.decoder.decode_frame_config - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_nie__decoder__decode_frame_config( - wuffs_nie__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 2)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - uint32_t coro_susp_point = self->private_impl.p_decode_frame_config; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - while (true) { - { - wuffs_base__status t_0 = wuffs_nie__decoder__do_decode_frame_config(self, a_dst, a_src); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_nie__error__truncated_input); - goto exit; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - } - - ok: - self->private_impl.p_decode_frame_config = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; - - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - } - return status; -} - -// -------- func nie.decoder.do_decode_frame_config +// -------- func png.decoder.decode_gama WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_nie__decoder__do_decode_frame_config( - wuffs_nie__decoder* self, - wuffs_base__frame_config* a_dst, +wuffs_png__decoder__decode_gama( + wuffs_png__decoder* self, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); @@ -54980,62 +68105,58 @@ wuffs_nie__decoder__do_decode_frame_config( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config; + uint32_t coro_susp_point = self->private_impl.p_decode_gama; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_call_sequence == 32u) { - } else if (self->private_impl.f_call_sequence < 32u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } + if (self->private_impl.f_chunk_length != 4u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_length = 0u; + self->private_impl.f_metadata_flavor = 5u; + self->private_impl.f_metadata_fourcc = 1195461953u; + { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_nie__decoder__do_decode_image_config(self, NULL, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - } else if (self->private_impl.f_call_sequence == 40u) { - if (16u != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { - status = wuffs_base__make_status(wuffs_base__error__bad_restart); - goto exit; + uint64_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); + iop_a_src += 4; + } else { + self->private_data.s_decode_gama.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_gama.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 24) { + t_0 = ((uint64_t)(*scratch >> 32)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); + } } - } else if (self->private_impl.f_call_sequence == 64u) { - self->private_impl.f_call_sequence = 96u; - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } else { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } - if (a_dst != NULL) { - wuffs_base__frame_config__set( - a_dst, - wuffs_base__utility__make_rect_ie_u32( - 0u, - 0u, - self->private_impl.f_width, - self->private_impl.f_height), - ((wuffs_base__flicks)(0u)), - 0u, - 16u, - 0u, - false, - false, - 0u); + self->private_impl.f_metadata_x = t_0; } - self->private_impl.f_call_sequence = 64u; + self->private_impl.f_metadata_y = 0u; + self->private_impl.f_metadata_z = 0u; + goto ok; ok: - self->private_impl.p_do_decode_frame_config = 0; + self->private_impl.p_decode_gama = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_decode_gama = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: @@ -55046,182 +68167,208 @@ wuffs_nie__decoder__do_decode_frame_config( return status; } -// -------- func nie.decoder.decode_frame +// -------- func png.decoder.decode_iccp WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_nie__decoder__decode_frame( - wuffs_nie__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 3)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; +static wuffs_base__status +wuffs_png__decoder__decode_iccp( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint8_t v_c8 = 0; - uint32_t coro_susp_point = self->private_impl.p_decode_frame; + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_iccp; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; while (true) { + if (self->private_impl.f_chunk_length <= 0u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_length -= 1u; { - wuffs_base__status t_0 = wuffs_nie__decoder__do_decode_frame(self, - a_dst, - a_src, - a_blend, - a_workbuf, - a_opts); - v_status = t_0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_nie__error__truncated_input); - goto exit; + if (v_c8 == 0u) { + break; } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } + if (self->private_impl.f_chunk_length <= 0u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_length -= 1u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + if (v_c8 != 0u) { + status = wuffs_base__make_status(wuffs_png__error__unsupported_png_compression_method); + goto exit; + } + self->private_impl.f_metadata_is_zlib_compressed = true; + self->private_impl.f_metadata_flavor = 4u; + self->private_impl.f_metadata_fourcc = 1229144912u; + self->private_impl.f_metadata_x = 0u; + self->private_impl.f_metadata_y = 0u; + self->private_impl.f_metadata_z = 0u; + goto ok; ok: - self->private_impl.p_decode_frame = 0; + self->private_impl.p_decode_iccp = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; + self->private_impl.p_decode_iccp = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } + return status; } -// -------- func nie.decoder.do_decode_frame +// -------- func png.decoder.decode_plte WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_nie__decoder__do_decode_frame( - wuffs_nie__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { +wuffs_png__decoder__decode_plte( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint32_t v_num_entries = 0; + uint32_t v_i = 0; + uint32_t v_argb = 0; - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_plte; + if (coro_susp_point) { + v_num_entries = self->private_data.s_decode_plte.v_num_entries; + v_i = self->private_data.s_decode_plte.v_i; + } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_call_sequence == 64u) { - } else if (self->private_impl.f_call_sequence < 64u) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_nie__decoder__do_decode_frame_config(self, NULL, a_src); - if (status.repr) { - goto suspend; - } - } else { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } - self->private_impl.f_dst_x = 0u; - self->private_impl.f_dst_y = 0u; - v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, - wuffs_base__pixel_buffer__pixel_format(a_dst), - wuffs_base__pixel_buffer__palette(a_dst), - wuffs_base__utility__make_pixel_format(self->private_impl.f_pixfmt), - wuffs_base__utility__empty_slice_u8(), - a_blend); - if ( ! wuffs_base__status__is_ok(&v_status)) { - status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; - } - goto ok; + if ((self->private_impl.f_chunk_length > 768u) || ((self->private_impl.f_chunk_length % 3u) != 0u)) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; } - while (true) { - v_status = wuffs_nie__decoder__swizzle(self, a_dst, a_src); - if (wuffs_base__status__is_ok(&v_status)) { - break; - } else if (v_status.repr != wuffs_nie__note__internal_note_short_read) { - status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; + v_num_entries = (((uint32_t)(self->private_impl.f_chunk_length)) / 3u); + self->private_impl.f_chunk_length = 0u; + while (v_i < v_num_entries) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 3)) { + t_0 = ((uint32_t)(wuffs_base__peek_u24be__no_bounds_check(iop_a_src))); + iop_a_src += 3; + } else { + self->private_data.s_decode_plte.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_plte.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 16) { + t_0 = ((uint32_t)(*scratch >> 40)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); + } } - goto ok; + v_argb = t_0; } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + v_argb |= 4278190080u; + self->private_data.f_src_palette[((4u * v_i) + 0u)] = ((uint8_t)((v_argb >> 0u))); + self->private_data.f_src_palette[((4u * v_i) + 1u)] = ((uint8_t)((v_argb >> 8u))); + self->private_data.f_src_palette[((4u * v_i) + 2u)] = ((uint8_t)((v_argb >> 16u))); + self->private_data.f_src_palette[((4u * v_i) + 3u)] = ((uint8_t)((v_argb >> 24u))); + v_i += 1u; + } + while (v_i < 256u) { + self->private_data.f_src_palette[((4u * v_i) + 0u)] = 0u; + self->private_data.f_src_palette[((4u * v_i) + 1u)] = 0u; + self->private_data.f_src_palette[((4u * v_i) + 2u)] = 0u; + self->private_data.f_src_palette[((4u * v_i) + 3u)] = 255u; + v_i += 1u; } - self->private_impl.f_call_sequence = 96u; + goto ok; ok: - self->private_impl.p_do_decode_frame = 0; + self->private_impl.p_decode_plte = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_decode_plte = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_plte.v_num_entries = v_num_entries; + self->private_data.s_decode_plte.v_i = v_i; goto exit; exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + return status; } -// -------- func nie.decoder.swizzle +// -------- func png.decoder.decode_srgb WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_nie__decoder__swizzle( - wuffs_nie__decoder* self, - wuffs_base__pixel_buffer* a_dst, +wuffs_png__decoder__decode_srgb( + wuffs_png__decoder* self, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - wuffs_base__pixel_format v_dst_pixfmt = {0}; - uint32_t v_dst_bits_per_pixel = 0; - uint32_t v_dst_bytes_per_pixel = 0; - uint64_t v_dst_bytes_per_row = 0; - uint32_t v_src_bytes_per_pixel = 0; - wuffs_base__table_u8 v_tab = {0}; - wuffs_base__slice_u8 v_dst = {0}; - uint64_t v_i = 0; - uint64_t v_j = 0; - uint64_t v_n = 0; - const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -55233,66 +68380,39 @@ wuffs_nie__decoder__swizzle( io2_a_src = io0_a_src + a_src->meta.wi; } - v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); - v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); - if ((v_dst_bits_per_pixel & 7u) != 0u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_option); - goto exit; - } - v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); - v_dst_bytes_per_row = ((uint64_t)((self->private_impl.f_width * v_dst_bytes_per_pixel))); - v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); - while (true) { - if (self->private_impl.f_dst_x == self->private_impl.f_width) { - self->private_impl.f_dst_x = 0u; - self->private_impl.f_dst_y += 1u; - if (self->private_impl.f_dst_y >= self->private_impl.f_height) { - break; - } - } - v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); - if (v_dst_bytes_per_row < ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row); + uint32_t coro_susp_point = self->private_impl.p_decode_srgb; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_chunk_length != 1u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; } - v_i = (((uint64_t)(self->private_impl.f_dst_x)) * ((uint64_t)(v_dst_bytes_per_pixel))); - if (v_i >= ((uint64_t)(v_dst.len))) { - v_src_bytes_per_pixel = 4u; - if (self->private_impl.f_pixfmt == 2164308923u) { - v_src_bytes_per_pixel = 8u; - } - v_n = (((uint64_t)(io2_a_src - iop_a_src)) / ((uint64_t)(v_src_bytes_per_pixel))); - v_n = wuffs_base__u64__min(v_n, ((uint64_t)(((uint32_t)(self->private_impl.f_width - self->private_impl.f_dst_x))))); - v_j = v_n; - while (v_j >= 8u) { - if (((uint64_t)(io2_a_src - iop_a_src)) >= ((uint64_t)((v_src_bytes_per_pixel * 8u)))) { - iop_a_src += (v_src_bytes_per_pixel * 8u); - } - v_j -= 8u; - } - while (v_j > 0u) { - if (((uint64_t)(io2_a_src - iop_a_src)) >= ((uint64_t)((v_src_bytes_per_pixel * 1u)))) { - iop_a_src += (v_src_bytes_per_pixel * 1u); - } - v_j -= 1u; + self->private_impl.f_chunk_length = 0u; + self->private_impl.f_metadata_flavor = 5u; + self->private_impl.f_metadata_fourcc = 1397901122u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - } else { - v_n = wuffs_base__pixel_swizzler__swizzle_interleaved_from_reader( - &self->private_impl.f_swizzler, - wuffs_base__slice_u8__subslice_i(v_dst, v_i), - wuffs_base__pixel_buffer__palette(a_dst), - &iop_a_src, - io2_a_src); - } - if (v_n == 0u) { - status = wuffs_base__make_status(wuffs_nie__note__internal_note_short_read); - goto ok; + uint64_t t_0 = *iop_a_src++; + self->private_impl.f_metadata_x = t_0; } - wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_dst_x, ((uint32_t)(v_n))); + self->private_impl.f_metadata_y = 0u; + self->private_impl.f_metadata_z = 0u; + + goto ok; + ok: + self->private_impl.p_decode_srgb = 0; + goto exit; } - status = wuffs_base__make_status(NULL); - goto ok; - ok: + goto suspend; + suspend: + self->private_impl.p_decode_srgb = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + goto exit; exit: if (a_src && a_src->data.ptr) { @@ -55302,131 +68422,199 @@ wuffs_nie__decoder__swizzle( return status; } -// -------- func nie.decoder.frame_dirty_rect - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 -wuffs_nie__decoder__frame_dirty_rect( - const wuffs_nie__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_rect_ie_u32(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_rect_ie_u32(); - } - - return wuffs_base__utility__make_rect_ie_u32( - 0u, - 0u, - self->private_impl.f_width, - self->private_impl.f_height); -} - -// -------- func nie.decoder.num_animation_loops +// -------- func png.decoder.decode_trns WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_nie__decoder__num_animation_loops( - const wuffs_nie__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - return 0u; -} +static wuffs_base__status +wuffs_png__decoder__decode_trns( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); -// -------- func nie.decoder.num_decoded_frame_configs + uint32_t v_i = 0; + uint32_t v_n = 0; + uint64_t v_u = 0; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_nie__decoder__num_decoded_frame_configs( - const wuffs_nie__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - if (self->private_impl.f_call_sequence > 32u) { - return 1u; + uint32_t coro_susp_point = self->private_impl.p_decode_trns; + if (coro_susp_point) { + v_i = self->private_data.s_decode_trns.v_i; + v_n = self->private_data.s_decode_trns.v_n; } - return 0u; -} - -// -------- func nie.decoder.num_decoded_frames + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_nie__decoder__num_decoded_frames( - const wuffs_nie__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } + if (self->private_impl.f_color_type == 0u) { + self->private_impl.choosy_filter_and_swizzle = ( + &wuffs_png__decoder__filter_and_swizzle_tricky); + if (self->private_impl.f_depth <= 8u) { + self->private_impl.f_dst_pixfmt = 2164295816u; + self->private_impl.f_src_pixfmt = 2164295816u; + } else { + self->private_impl.f_dst_pixfmt = 2164308923u; + self->private_impl.f_src_pixfmt = 2164308923u; + } + if (self->private_impl.f_chunk_length != 2u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_length = 0u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint64_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_0 = ((uint64_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_decode_trns.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_trns.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 8) { + t_0 = ((uint64_t)(*scratch >> 48)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); + } + } + v_u = t_0; + } + if (self->private_impl.f_depth <= 1u) { + self->private_impl.f_remap_transparency = (((v_u & 1u) * 16777215u) | 4278190080u); + } else if (self->private_impl.f_depth <= 2u) { + self->private_impl.f_remap_transparency = (((v_u & 3u) * 5592405u) | 4278190080u); + } else if (self->private_impl.f_depth <= 4u) { + self->private_impl.f_remap_transparency = (((v_u & 15u) * 1118481u) | 4278190080u); + } else if (self->private_impl.f_depth <= 8u) { + self->private_impl.f_remap_transparency = (((v_u & 255u) * 65793u) | 4278190080u); + } else { + self->private_impl.f_remap_transparency = ((v_u * 4295032833u) | 18446462598732840960u); + } + } else if (self->private_impl.f_color_type == 2u) { + self->private_impl.choosy_filter_and_swizzle = ( + &wuffs_png__decoder__filter_and_swizzle_tricky); + if (self->private_impl.f_depth <= 8u) { + self->private_impl.f_dst_pixfmt = 2164295816u; + self->private_impl.f_src_pixfmt = 2164295816u; + } else { + self->private_impl.f_dst_pixfmt = 2164308923u; + self->private_impl.f_src_pixfmt = 2164308923u; + } + if (self->private_impl.f_chunk_length != 6u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_length = 0u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint64_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 6)) { + t_1 = ((uint64_t)(wuffs_base__peek_u48be__no_bounds_check(iop_a_src))); + iop_a_src += 6; + } else { + self->private_data.s_decode_trns.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_trns.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); + if (num_bits_1 == 40) { + t_1 = ((uint64_t)(*scratch >> 16)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)); + } + } + v_u = t_1; + } + if (self->private_impl.f_depth <= 8u) { + self->private_impl.f_remap_transparency = ((255u & (v_u >> 0u)) | + (65280u & (v_u >> 8u)) | + (16711680u & (v_u >> 16u)) | + 4278190080u); + } else { + self->private_impl.f_remap_transparency = (v_u | 18446462598732840960u); + } + } else if (self->private_impl.f_color_type == 3u) { + self->private_impl.f_dst_pixfmt = 2164523016u; + self->private_impl.f_src_pixfmt = 2164523016u; + if (self->private_impl.f_chunk_length > 256u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + v_n = ((uint32_t)(self->private_impl.f_chunk_length)); + self->private_impl.f_chunk_length = 0u; + while (v_i < v_n) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + self->private_data.f_src_palette[((4u * v_i) + 3u)] = t_2; + } + v_i += 1u; + } + } else { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } - if (self->private_impl.f_call_sequence > 64u) { - return 1u; + goto ok; + ok: + self->private_impl.p_decode_trns = 0; + goto exit; } - return 0u; -} - -// -------- func nie.decoder.restart_frame -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_nie__decoder__restart_frame( - wuffs_nie__decoder* self, - uint64_t a_index, - uint64_t a_io_position) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } + goto suspend; + suspend: + self->private_impl.p_decode_trns = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_trns.v_i = v_i; + self->private_data.s_decode_trns.v_n = v_n; - if (self->private_impl.f_call_sequence < 32u) { - return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - } - if ((a_index != 0u) || (a_io_position != 16u)) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - self->private_impl.f_call_sequence = 40u; - return wuffs_base__make_status(NULL); -} - -// -------- func nie.decoder.set_report_metadata -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_nie__decoder__set_report_metadata( - wuffs_nie__decoder* self, - uint32_t a_fourcc, - bool a_report) { - return wuffs_base__make_empty_struct(); + return status; } -// -------- func nie.decoder.tell_me_more +// -------- func png.decoder.decode_frame_config WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_nie__decoder__tell_me_more( - wuffs_nie__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, +wuffs_png__decoder__decode_frame_config( + wuffs_png__decoder* self, + wuffs_base__frame_config* a_dst, wuffs_base__io_buffer* a_src) { if (!self) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); @@ -55437,23 +68625,47 @@ wuffs_nie__decoder__tell_me_more( ? wuffs_base__error__disabled_by_previous_error : wuffs_base__error__initialize_not_called); } - if (!a_dst || !a_src) { + if (!a_src) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__bad_argument); } if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 4)) { + (self->private_impl.active_coroutine != 2)) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - status = wuffs_base__make_status(wuffs_base__error__no_more_information); - goto exit; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_png__decoder__do_decode_frame_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_png__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_frame_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; - goto ok; - ok: goto exit; exit: if (wuffs_base__status__is_error(&status)) { @@ -55462,312 +68674,436 @@ wuffs_nie__decoder__tell_me_more( return status; } -// -------- func nie.decoder.workbuf_len - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_nie__decoder__workbuf_len( - const wuffs_nie__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); - } - - return wuffs_base__utility__make_range_ii_u64(0u, 0u); -} - -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NIE) - -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ZLIB) - -// ---------------- Status Codes Implementations - -const char wuffs_zlib__note__dictionary_required[] = "@zlib: dictionary required"; -const char wuffs_zlib__error__bad_checksum[] = "#zlib: bad checksum"; -const char wuffs_zlib__error__bad_compression_method[] = "#zlib: bad compression method"; -const char wuffs_zlib__error__bad_compression_window_size[] = "#zlib: bad compression window size"; -const char wuffs_zlib__error__bad_parity_check[] = "#zlib: bad parity check"; -const char wuffs_zlib__error__incorrect_dictionary[] = "#zlib: incorrect dictionary"; -const char wuffs_zlib__error__truncated_input[] = "#zlib: truncated input"; - -// ---------------- Private Consts - -#define WUFFS_ZLIB__QUIRKS_BASE 2113790976u - -#define WUFFS_ZLIB__QUIRKS_COUNT 1u - -// ---------------- Private Initializer Prototypes - -// ---------------- Private Function Prototypes +// -------- func png.decoder.do_decode_frame_config WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_zlib__decoder__do_transform_io( - wuffs_zlib__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf); - -// ---------------- VTables - -const wuffs_base__io_transformer__func_ptrs -wuffs_zlib__decoder__func_ptrs_for__wuffs_base__io_transformer = { - (wuffs_base__optional_u63(*)(const void*))(&wuffs_zlib__decoder__dst_history_retain_length), - (uint64_t(*)(const void*, - uint32_t))(&wuffs_zlib__decoder__get_quirk), - (wuffs_base__status(*)(void*, - uint32_t, - uint64_t))(&wuffs_zlib__decoder__set_quirk), - (wuffs_base__status(*)(void*, - wuffs_base__io_buffer*, - wuffs_base__io_buffer*, - wuffs_base__slice_u8))(&wuffs_zlib__decoder__transform_io), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_zlib__decoder__workbuf_len), -}; +wuffs_png__decoder__do_decode_frame_config( + wuffs_png__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); -// ---------------- Initializer Implementations + uint32_t v_checksum_have = 0; -wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_zlib__decoder__initialize( - wuffs_zlib__decoder* self, - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options){ - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (sizeof(*self) != sizeof_star_self) { - return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); - } - if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || - (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { - return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { - // The whole point of this if-check is to detect an uninitialized *self. - // We disable the warning on GCC. Clang-5.0 does not have this warning. -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" -#endif - if (self->private_impl.magic != 0) { - return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); - } -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } else { - if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { - memset(self, 0, sizeof(*self)); - options |= WUFFS_INITIALIZE__ALREADY_ZEROED; - } else { - memset(&(self->private_impl), 0, sizeof(self->private_impl)); - } - } + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - { - wuffs_base__status z = wuffs_adler32__hasher__initialize( - &self->private_data.f_checksum, sizeof(self->private_data.f_checksum), WUFFS_VERSION, options); - if (z.repr) { - return z; - } - } - { - wuffs_base__status z = wuffs_adler32__hasher__initialize( - &self->private_data.f_dict_id_hasher, sizeof(self->private_data.f_dict_id_hasher), WUFFS_VERSION, options); - if (z.repr) { - return z; + if (((uint8_t)(self->private_impl.f_call_sequence & 16u)) != 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + goto exit; + } else if (self->private_impl.f_call_sequence == 32u) { + } else if (self->private_impl.f_call_sequence < 32u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_png__decoder__do_decode_image_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else if (self->private_impl.f_call_sequence == 40u) { + if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_restart); + goto exit; + } + } else if (self->private_impl.f_call_sequence == 64u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + status = wuffs_png__decoder__skip_frame(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; } - } - { - wuffs_base__status z = wuffs_deflate__decoder__initialize( - &self->private_data.f_flate, sizeof(self->private_data.f_flate), WUFFS_VERSION, options); - if (z.repr) { - return z; + if (self->private_impl.f_metadata_fourcc != 0u) { + self->private_impl.f_call_sequence = 48u; + status = wuffs_base__make_status(wuffs_base__note__metadata_reported); + goto ok; } - } - self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = - wuffs_base__io_transformer__vtable_name; - self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = - (const void*)(&wuffs_zlib__decoder__func_ptrs_for__wuffs_base__io_transformer); - return wuffs_base__make_status(NULL); -} - -wuffs_zlib__decoder* -wuffs_zlib__decoder__alloc(void) { - wuffs_zlib__decoder* x = - (wuffs_zlib__decoder*)(calloc(sizeof(wuffs_zlib__decoder), 1)); - if (!x) { - return NULL; - } - if (wuffs_zlib__decoder__initialize( - x, sizeof(wuffs_zlib__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; - } - return x; -} - -size_t -sizeof__wuffs_zlib__decoder(void) { - return sizeof(wuffs_zlib__decoder); -} - -// ---------------- Function Implementations - -// -------- func zlib.decoder.dictionary_id - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_zlib__decoder__dictionary_id( - const wuffs_zlib__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - return self->private_impl.f_dict_id_want; -} - -// -------- func zlib.decoder.add_dictionary - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_zlib__decoder__add_dictionary( - wuffs_zlib__decoder* self, - wuffs_base__slice_u8 a_dict) { - if (!self) { - return wuffs_base__make_empty_struct(); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_empty_struct(); - } - - if (self->private_impl.f_header_complete) { - self->private_impl.f_bad_call_sequence = true; - } else { - self->private_impl.f_dict_id_got = wuffs_adler32__hasher__update_u32(&self->private_data.f_dict_id_hasher, a_dict); - wuffs_deflate__decoder__add_history(&self->private_data.f_flate, a_dict); - } - self->private_impl.f_got_dictionary = true; - return wuffs_base__make_empty_struct(); -} - -// -------- func zlib.decoder.get_quirk - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_zlib__decoder__get_quirk( - const wuffs_zlib__decoder* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - uint32_t v_key = 0; - - if ((a_key == 1u) && self->private_impl.f_ignore_checksum) { - return 1u; - } else if (a_key >= 2113790976u) { - v_key = (a_key - 2113790976u); - if (v_key < 1u) { - if (self->private_impl.f_quirks[v_key]) { - return 1u; + if (self->private_impl.f_num_decoded_frame_configs_value == 0u) { + self->private_impl.f_frame_rect_x0 = self->private_impl.f_first_rect_x0; + self->private_impl.f_frame_rect_y0 = self->private_impl.f_first_rect_y0; + self->private_impl.f_frame_rect_x1 = self->private_impl.f_first_rect_x1; + self->private_impl.f_frame_rect_y1 = self->private_impl.f_first_rect_y1; + self->private_impl.f_frame_config_io_position = self->private_impl.f_first_config_io_position; + self->private_impl.f_frame_duration = self->private_impl.f_first_duration; + self->private_impl.f_frame_disposal = self->private_impl.f_first_disposal; + self->private_impl.f_frame_overwrite_instead_of_blend = self->private_impl.f_first_overwrite_instead_of_blend; + } else { + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_frame_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_frame_config.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); + } + } + self->private_impl.f_chunk_length = t_0; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_frame_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_frame_config.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 24) { + t_1 = ((uint32_t)(*scratch)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; + } + } + self->private_impl.f_chunk_type = t_1; + } + if (self->private_impl.f_chunk_type == 1145980233u) { + if (self->private_impl.f_chunk_length != 0u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + uint32_t t_2; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_2 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_frame_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_frame_config.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; + if (num_bits_2 == 24) { + t_2 = ((uint32_t)(*scratch)); + break; + } + num_bits_2 += 8u; + *scratch |= ((uint64_t)(num_bits_2)) << 56; + } + } + v_checksum_have = t_2; + } + if ( ! self->private_impl.f_ignore_checksum && (v_checksum_have != 2187346606u)) { + status = wuffs_base__make_status(wuffs_png__error__bad_checksum); + goto exit; + } + self->private_impl.f_call_sequence = 96u; + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } else if (self->private_impl.f_chunk_type == 1413571686u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } else if (self->private_impl.f_chunk_type == 1280598886u) { + self->private_impl.f_frame_config_io_position = ((uint64_t)(wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))) - 8u)); + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + status = wuffs_png__decoder__decode_fctl(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + self->private_data.s_do_decode_frame_config.scratch = 4u; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + if (self->private_data.s_do_decode_frame_config.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_decode_frame_config.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_decode_frame_config.scratch; + break; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); + status = wuffs_png__decoder__decode_other_chunk(self, a_src, true); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + if (self->private_impl.f_metadata_fourcc != 0u) { + self->private_impl.f_call_sequence = 48u; + status = wuffs_base__make_status(wuffs_base__note__metadata_reported); + goto ok; + } + self->private_data.s_do_decode_frame_config.scratch = 4u; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + if (self->private_data.s_do_decode_frame_config.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_decode_frame_config.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_decode_frame_config.scratch; + self->private_impl.f_chunk_length = 0u; } } - } - return 0u; -} - -// -------- func zlib.decoder.set_quirk - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_zlib__decoder__set_quirk( - wuffs_zlib__decoder* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); + if (a_dst != NULL) { + wuffs_base__frame_config__set( + a_dst, + wuffs_base__utility__make_rect_ie_u32( + self->private_impl.f_frame_rect_x0, + self->private_impl.f_frame_rect_y0, + self->private_impl.f_frame_rect_x1, + self->private_impl.f_frame_rect_y1), + ((wuffs_base__flicks)(self->private_impl.f_frame_duration)), + ((uint64_t)(self->private_impl.f_num_decoded_frame_configs_value)), + self->private_impl.f_frame_config_io_position, + self->private_impl.f_frame_disposal, + ((self->private_impl.f_color_type <= 3u) && ! self->private_impl.f_seen_trns), + self->private_impl.f_frame_overwrite_instead_of_blend, + 0u); + } + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_num_decoded_frame_configs_value, 1u); + self->private_impl.f_call_sequence = 64u; + + ok: + self->private_impl.p_do_decode_frame_config = 0; + goto exit; } - if (self->private_impl.f_header_complete) { - self->private_impl.f_bad_call_sequence = true; - return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - } else if (a_key == 1u) { - self->private_impl.f_ignore_checksum = (a_value > 0u); - return wuffs_base__make_status(NULL); - } else if (a_key >= 2113790976u) { - a_key -= 2113790976u; - if (a_key < 1u) { - self->private_impl.f_quirks[a_key] = (a_value > 0u); - return wuffs_base__make_status(NULL); - } + goto suspend; + suspend: + self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - return wuffs_base__make_status(wuffs_base__error__unsupported_option); + + return status; } -// -------- func zlib.decoder.dst_history_retain_length +// -------- func png.decoder.skip_frame WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 -wuffs_zlib__decoder__dst_history_retain_length( - const wuffs_zlib__decoder* self) { - if (!self) { - return wuffs_base__utility__make_optional_u63(false, 0u); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__make_optional_u63(false, 0u); +static wuffs_base__status +wuffs_png__decoder__skip_frame( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_seq_num = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - return wuffs_base__utility__make_optional_u63(true, 0u); -} + uint32_t coro_susp_point = self->private_impl.p_skip_frame; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; -// -------- func zlib.decoder.workbuf_len + self->private_impl.f_chunk_type_array[0u] = 0u; + self->private_impl.f_chunk_type_array[1u] = 0u; + self->private_impl.f_chunk_type_array[2u] = 0u; + self->private_impl.f_chunk_type_array[3u] = 0u; + while (true) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 8u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + continue; + } + self->private_impl.f_chunk_length = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + self->private_impl.f_chunk_type = ((uint32_t)((wuffs_base__peek_u64le__no_bounds_check(iop_a_src) >> 32u))); + if (self->private_impl.f_chunk_type == 1413563465u) { + if (self->private_impl.f_chunk_type_array[0u] == 102u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_type_array[0u] = 73u; + self->private_impl.f_chunk_type_array[1u] = 68u; + self->private_impl.f_chunk_type_array[2u] = 65u; + self->private_impl.f_chunk_type_array[3u] = 84u; + } else if (self->private_impl.f_chunk_type == 1413571686u) { + if (self->private_impl.f_chunk_type_array[0u] == 73u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_type_array[0u] = 102u; + self->private_impl.f_chunk_type_array[1u] = 100u; + self->private_impl.f_chunk_type_array[2u] = 65u; + self->private_impl.f_chunk_type_array[3u] = 84u; + if (self->private_impl.f_chunk_length < 4u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_length -= 4u; + iop_a_src += 8u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_skip_frame.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_skip_frame.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); + } + } + v_seq_num = t_0; + } + if (v_seq_num != self->private_impl.f_next_animation_seq_num) { + status = wuffs_base__make_status(wuffs_png__error__bad_animation_sequence_number); + goto exit; + } else if (self->private_impl.f_next_animation_seq_num >= 4294967295u) { + status = wuffs_base__make_status(wuffs_png__error__unsupported_png_file); + goto exit; + } + self->private_impl.f_next_animation_seq_num += 1u; + self->private_data.s_skip_frame.scratch = (((uint64_t)(self->private_impl.f_chunk_length)) + 4u); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (self->private_data.s_skip_frame.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_skip_frame.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_skip_frame.scratch; + self->private_impl.f_chunk_length = 0u; + continue; + } else if (self->private_impl.f_chunk_type_array[0u] != 0u) { + break; + } else if (self->private_impl.f_chunk_type == 1280598886u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_data.s_skip_frame.scratch = (((uint64_t)(self->private_impl.f_chunk_length)) + 12u); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (self->private_data.s_skip_frame.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_skip_frame.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_skip_frame.scratch; + self->private_impl.f_chunk_length = 0u; + } + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1u); + self->private_impl.f_call_sequence = 32u; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_zlib__decoder__workbuf_len( - const wuffs_zlib__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); + ok: + self->private_impl.p_skip_frame = 0; + goto exit; } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); + + goto suspend; + suspend: + self->private_impl.p_skip_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - return wuffs_base__utility__make_range_ii_u64(1u, 1u); + return status; } -// -------- func zlib.decoder.transform_io +// -------- func png.decoder.decode_frame WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_zlib__decoder__transform_io( - wuffs_zlib__decoder* self, - wuffs_base__io_buffer* a_dst, +wuffs_png__decoder__decode_frame( + wuffs_png__decoder* self, + wuffs_base__pixel_buffer* a_dst, wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { if (!self) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); } @@ -55782,7 +69118,7 @@ wuffs_zlib__decoder__transform_io( return wuffs_base__make_status(wuffs_base__error__bad_argument); } if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 1)) { + (self->private_impl.active_coroutine != 3)) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } @@ -55791,17 +69127,22 @@ wuffs_zlib__decoder__transform_io( wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_transform_io; + uint32_t coro_susp_point = self->private_impl.p_decode_frame; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; while (true) { { - wuffs_base__status t_0 = wuffs_zlib__decoder__do_transform_io(self, a_dst, a_src, a_workbuf); + wuffs_base__status t_0 = wuffs_png__decoder__do_decode_frame(self, + a_dst, + a_src, + a_blend, + a_workbuf, + a_opts); v_status = t_0; } if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_zlib__error__truncated_input); + status = wuffs_base__make_status(wuffs_png__error__truncated_input); goto exit; } status = v_status; @@ -55809,14 +69150,14 @@ wuffs_zlib__decoder__transform_io( } ok: - self->private_impl.p_transform_io = 0; + self->private_impl.p_decode_frame = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; goto exit; exit: @@ -55826,36 +69167,24 @@ wuffs_zlib__decoder__transform_io( return status; } -// -------- func zlib.decoder.do_transform_io +// -------- func png.decoder.do_decode_frame WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_zlib__decoder__do_transform_io( - wuffs_zlib__decoder* self, - wuffs_base__io_buffer* a_dst, +wuffs_png__decoder__do_decode_frame( + wuffs_png__decoder* self, + wuffs_base__pixel_buffer* a_dst, wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint16_t v_x = 0; - uint32_t v_checksum_got = 0; + uint32_t v_seq_num = 0; wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t v_checksum_want = 0; - uint64_t v_mark = 0; + uint32_t v_pass_width = 0; + uint32_t v_pass_height = 0; - uint8_t* iop_a_dst = NULL; - uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; - } - } const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -55867,77 +69196,341 @@ wuffs_zlib__decoder__do_transform_io( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_transform_io; - if (coro_susp_point) { - v_checksum_got = self->private_data.s_do_transform_io.v_checksum_got; - } + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_bad_call_sequence) { + if (((uint8_t)(self->private_impl.f_call_sequence & 16u)) != 0u) { status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); goto exit; - } else if (self->private_impl.f_quirks[0u]) { - } else if ( ! self->private_impl.f_want_dictionary) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint16_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_0 = wuffs_base__peek_u16be__no_bounds_check(iop_a_src); - iop_a_src += 2; - } else { - self->private_data.s_do_transform_io.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + } else if (self->private_impl.f_call_sequence >= 96u) { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } else if (self->private_impl.f_call_sequence != 64u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_png__decoder__do_decode_frame_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } + while (true) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 8u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + continue; + } + self->private_impl.f_chunk_length = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + self->private_impl.f_chunk_type = ((uint32_t)((wuffs_base__peek_u64le__no_bounds_check(iop_a_src) >> 32u))); + if (self->private_impl.f_chunk_type == 1413563465u) { + self->private_impl.f_chunk_type_array[0u] = 73u; + self->private_impl.f_chunk_type_array[1u] = 68u; + self->private_impl.f_chunk_type_array[2u] = 65u; + self->private_impl.f_chunk_type_array[3u] = 84u; + iop_a_src += 8u; + if ( ! self->private_impl.f_ignore_checksum) { + wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, + sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__make_slice_u8(self->private_impl.f_chunk_type_array, 4)); + } + break; + } else if (self->private_impl.f_chunk_type == 1413571686u) { + self->private_impl.f_chunk_type_array[0u] = 102u; + self->private_impl.f_chunk_type_array[1u] = 100u; + self->private_impl.f_chunk_type_array[2u] = 65u; + self->private_impl.f_chunk_type_array[3u] = 84u; + if (self->private_impl.f_chunk_length < 4u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_length -= 4u; + iop_a_src += 8u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_frame.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_frame.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); + } + } + v_seq_num = t_0; + } + if (v_seq_num != self->private_impl.f_next_animation_seq_num) { + status = wuffs_base__make_status(wuffs_png__error__bad_animation_sequence_number); + goto exit; + } else if (self->private_impl.f_next_animation_seq_num >= 4294967295u) { + status = wuffs_base__make_status(wuffs_png__error__unsupported_png_file); + goto exit; + } + self->private_impl.f_next_animation_seq_num += 1u; + break; + } else if (self->private_impl.f_chunk_type == 1280598886u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_data.s_do_decode_frame.scratch = (((uint64_t)(self->private_impl.f_chunk_length)) + 12u); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (self->private_data.s_do_decode_frame.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_decode_frame.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_decode_frame.scratch; + self->private_impl.f_chunk_length = 0u; + } + if (self->private_impl.f_zlib_is_dirty) { + wuffs_private_impl__ignore_status(wuffs_zlib__decoder__initialize(&self->private_data.f_zlib, + sizeof (wuffs_zlib__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + if (self->private_impl.f_ignore_checksum) { + wuffs_zlib__decoder__set_quirk(&self->private_data.f_zlib, 1u, 1u); + } + } + self->private_impl.f_zlib_is_dirty = true; + v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, + wuffs_base__pixel_buffer__pixel_format(a_dst), + wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)), + wuffs_base__utility__make_pixel_format(self->private_impl.f_src_pixfmt), + wuffs_base__make_slice_u8(self->private_data.f_src_palette, 1024), + a_blend); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + self->private_impl.f_workbuf_hist_pos_base = 0u; + while (true) { + if (self->private_impl.f_chunk_type_array[0u] == 73u) { + v_pass_width = (16777215u & ((((uint32_t)(WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][1u])) + self->private_impl.f_width) >> WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][0u])); + v_pass_height = (16777215u & ((((uint32_t)(WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][4u])) + self->private_impl.f_height) >> WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][3u])); + } else { + v_pass_width = (16777215u & ((uint32_t)(self->private_impl.f_frame_rect_x1 - self->private_impl.f_frame_rect_x0))); + v_pass_height = (16777215u & ((uint32_t)(self->private_impl.f_frame_rect_y1 - self->private_impl.f_frame_rect_y0))); + } + if ((v_pass_width > 0u) && (v_pass_height > 0u)) { + self->private_impl.f_pass_bytes_per_row = wuffs_png__decoder__calculate_bytes_per_row(self, v_pass_width); + self->private_impl.f_pass_workbuf_length = (((uint64_t)(v_pass_height)) * (1u + self->private_impl.f_pass_bytes_per_row)); + while (true) { + { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_1 = wuffs_png__decoder__decode_pass(self, a_src, a_workbuf); + v_status = t_1; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } else if (wuffs_base__status__is_error(&v_status) || ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed))) { + if (self->private_impl.f_workbuf_wi <= ((uint64_t)(a_workbuf.len))) { + wuffs_png__decoder__filter_and_swizzle(self, a_dst, wuffs_base__slice_u8__subslice_j(a_workbuf, self->private_impl.f_workbuf_wi)); + } + if (v_status.repr == wuffs_base__suspension__short_read) { + status = wuffs_base__make_status(wuffs_png__error__truncated_input); + goto exit; + } + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); + } + v_status = wuffs_png__decoder__filter_and_swizzle(self, a_dst, a_workbuf); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + self->private_impl.f_workbuf_hist_pos_base += self->private_impl.f_pass_workbuf_length; + } + if ((self->private_impl.f_interlace_pass == 0u) || (self->private_impl.f_interlace_pass >= 7u)) { + break; + } +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_impl.f_interlace_pass += 1u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } + wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1u); + self->private_impl.f_call_sequence = 32u; + + ok: + self->private_impl.p_do_decode_frame = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func png.decoder.decode_pass + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_png__decoder__decode_pass( + wuffs_png__decoder* self, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__io_buffer u_w = wuffs_base__empty_io_buffer(); + wuffs_base__io_buffer* v_w = &u_w; + uint8_t* iop_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io0_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint64_t v_w_mark = 0; + uint64_t v_r_mark = 0; + wuffs_base__status v_zlib_status = wuffs_base__make_status(NULL); + uint32_t v_checksum_have = 0; + uint32_t v_checksum_want = 0; + uint32_t v_seq_num = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_pass; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + self->private_impl.f_workbuf_wi = 0u; + while (true) { + if ((self->private_impl.f_workbuf_wi > self->private_impl.f_pass_workbuf_length) || (self->private_impl.f_pass_workbuf_length > ((uint64_t)(a_workbuf.len)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); + goto exit; + } + { + wuffs_base__io_buffer* o_0_v_w = v_w; + uint8_t* o_0_iop_v_w = iop_v_w; + uint8_t* o_0_io0_v_w = io0_v_w; + uint8_t* o_0_io1_v_w = io1_v_w; + uint8_t* o_0_io2_v_w = io2_v_w; + v_w = wuffs_private_impl__io_writer__set( + &u_w, + &iop_v_w, + &io0_v_w, + &io1_v_w, + &io2_v_w, + wuffs_base__slice_u8__subslice_ij(a_workbuf, + self->private_impl.f_workbuf_wi, + self->private_impl.f_pass_workbuf_length), + ((uint64_t)(self->private_impl.f_workbuf_hist_pos_base + self->private_impl.f_workbuf_wi))); + { + const bool o_1_closed_a_src = a_src->meta.closed; + const uint8_t* o_1_io2_a_src = io2_a_src; + wuffs_private_impl__io_reader__limit(&io2_a_src, iop_a_src, + ((uint64_t)(self->private_impl.f_chunk_length))); + if (a_src) { + size_t n = ((size_t)(io2_a_src - a_src->data.ptr)); + a_src->meta.closed = a_src->meta.closed && (a_src->meta.wi <= n); + a_src->meta.wi = n; + } + v_w_mark = ((uint64_t)(iop_v_w - io0_v_w)); + v_r_mark = ((uint64_t)(iop_a_src - io0_a_src)); + { + u_w.meta.wi = ((size_t)(iop_v_w - u_w.data.ptr)); + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); - if (num_bits_0 == 8) { - t_0 = ((uint16_t)(*scratch >> 48)); - break; + wuffs_base__status t_0 = wuffs_zlib__decoder__transform_io(&self->private_data.f_zlib, v_w, a_src, wuffs_base__utility__empty_slice_u8()); + v_zlib_status = t_0; + iop_v_w = u_w.data.ptr + u_w.meta.wi; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); + } + if ( ! self->private_impl.f_ignore_checksum) { + wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_private_impl__io__since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); + } + wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_chunk_length, ((uint32_t)(wuffs_private_impl__io__count_since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)))))); + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_workbuf_wi, wuffs_private_impl__io__count_since(v_w_mark, ((uint64_t)(iop_v_w - io0_v_w)))); + io2_a_src = o_1_io2_a_src; + if (a_src) { + a_src->meta.closed = o_1_closed_a_src; + a_src->meta.wi = ((size_t)(io2_a_src - a_src->data.ptr)); } } - v_x = t_0; - } - if (((uint16_t)(((uint16_t)(v_x >> 8u)) & 15u)) != 8u) { - status = wuffs_base__make_status(wuffs_zlib__error__bad_compression_method); - goto exit; - } - if (((uint16_t)(v_x >> 12u)) > 7u) { - status = wuffs_base__make_status(wuffs_zlib__error__bad_compression_window_size); - goto exit; - } - if (((uint16_t)(v_x % 31u)) != 0u) { - status = wuffs_base__make_status(wuffs_zlib__error__bad_parity_check); - goto exit; + v_w = o_0_v_w; + iop_v_w = o_0_iop_v_w; + io0_v_w = o_0_io0_v_w; + io1_v_w = o_0_io1_v_w; + io2_v_w = o_0_io2_v_w; } - self->private_impl.f_want_dictionary = (((uint16_t)(v_x & 32u)) != 0u); - if (self->private_impl.f_want_dictionary) { - self->private_impl.f_dict_id_got = 1u; + if (wuffs_base__status__is_ok(&v_zlib_status)) { + if (self->private_impl.f_chunk_length > 0u) { + status = wuffs_base__make_status(wuffs_base__error__too_much_data); + goto exit; + } { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); uint32_t t_1; if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { t_1 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); iop_a_src += 4; } else { - self->private_data.s_do_transform_io.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + self->private_data.s_decode_pass.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint64_t* scratch = &self->private_data.s_decode_pass.scratch; uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); *scratch >>= 8; *scratch <<= 8; @@ -55950,101 +69543,208 @@ wuffs_zlib__decoder__do_transform_io( *scratch |= ((uint64_t)(num_bits_1)); } } - self->private_impl.f_dict_id_want = t_1; + v_checksum_want = t_1; } - status = wuffs_base__make_status(wuffs_zlib__note__dictionary_required); - goto ok; - } else if (self->private_impl.f_got_dictionary) { - status = wuffs_base__make_status(wuffs_zlib__error__incorrect_dictionary); - goto exit; - } - } else if (self->private_impl.f_dict_id_got != self->private_impl.f_dict_id_want) { - if (self->private_impl.f_got_dictionary) { - status = wuffs_base__make_status(wuffs_zlib__error__incorrect_dictionary); + if ( ! self->private_impl.f_ignore_checksum && (self->private_impl.f_chunk_type_array[0u] == 73u)) { + v_checksum_have = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__utility__empty_slice_u8()); + if (v_checksum_have != v_checksum_want) { + status = wuffs_base__make_status(wuffs_png__error__bad_checksum); + goto exit; + } + } + break; + } else if (v_zlib_status.repr == wuffs_base__suspension__short_write) { + if ((1u <= self->private_impl.f_interlace_pass) && (self->private_impl.f_interlace_pass <= 6u)) { + break; + } + status = wuffs_base__make_status(wuffs_base__error__too_much_data); goto exit; - } - status = wuffs_base__make_status(wuffs_zlib__note__dictionary_required); - goto ok; - } - self->private_impl.f_header_complete = true; - while (true) { - v_mark = ((uint64_t)(iop_a_dst - io0_a_dst)); - { - if (a_dst) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } else if (v_zlib_status.repr != wuffs_base__suspension__short_read) { + status = v_zlib_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + goto ok; + } else if (self->private_impl.f_chunk_length == 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_2; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_2 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_pass.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_pass.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_2); + if (num_bits_2 == 24) { + t_2 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_2 += 8u; + *scratch |= ((uint64_t)(num_bits_2)); + } + } + v_checksum_want = t_2; } - wuffs_base__status t_2 = wuffs_deflate__decoder__transform_io(&self->private_data.f_flate, a_dst, a_src, a_workbuf); - v_status = t_2; - if (a_dst) { - iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + if ( ! self->private_impl.f_ignore_checksum && (self->private_impl.f_chunk_type_array[0u] == 73u)) { + v_checksum_have = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__utility__empty_slice_u8()); + if (v_checksum_have != v_checksum_want) { + status = wuffs_base__make_status(wuffs_png__error__bad_checksum); + goto exit; + } } - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + uint32_t t_3; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_3 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_pass.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_pass.scratch; + uint32_t num_bits_3 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_3); + if (num_bits_3 == 24) { + t_3 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_3 += 8u; + *scratch |= ((uint64_t)(num_bits_3)); + } + } + self->private_impl.f_chunk_length = t_3; } - } - if ( ! self->private_impl.f_ignore_checksum && ! self->private_impl.f_quirks[0u]) { - v_checksum_got = wuffs_adler32__hasher__update_u32(&self->private_data.f_checksum, wuffs_private_impl__io__since(v_mark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); - } - if (wuffs_base__status__is_ok(&v_status)) { - break; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); - } - if ( ! self->private_impl.f_quirks[0u]) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - uint32_t t_3; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_3 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_transform_io.scratch = 0; + { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + uint32_t t_4; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_4 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_pass.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_pass.scratch; + uint32_t num_bits_4 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_4; + if (num_bits_4 == 24) { + t_4 = ((uint32_t)(*scratch)); + break; + } + num_bits_4 += 8u; + *scratch |= ((uint64_t)(num_bits_4)) << 56; } - uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; - uint32_t num_bits_3 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_3); - if (num_bits_3 == 24) { - t_3 = ((uint32_t)(*scratch >> 32)); - break; + } + self->private_impl.f_chunk_type = t_4; + } + if (self->private_impl.f_chunk_type_array[0u] == 73u) { + if (self->private_impl.f_chunk_type != 1413563465u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + if ( ! self->private_impl.f_ignore_checksum) { + wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, + sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__make_slice_u8(self->private_impl.f_chunk_type_array, 4)); + } + } else { + if ((self->private_impl.f_chunk_type != 1413571686u) || (self->private_impl.f_chunk_length < 4u)) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_length -= 4u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + uint32_t t_5; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_5 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_pass.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_pass.scratch; + uint32_t num_bits_5 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_5); + if (num_bits_5 == 24) { + t_5 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_5 += 8u; + *scratch |= ((uint64_t)(num_bits_5)); + } } - num_bits_3 += 8u; - *scratch |= ((uint64_t)(num_bits_3)); + v_seq_num = t_5; + } + if (v_seq_num != self->private_impl.f_next_animation_seq_num) { + status = wuffs_base__make_status(wuffs_png__error__bad_animation_sequence_number); + goto exit; + } else if (self->private_impl.f_next_animation_seq_num >= 4294967295u) { + status = wuffs_base__make_status(wuffs_png__error__unsupported_png_file); + goto exit; } + self->private_impl.f_next_animation_seq_num += 1u; } - v_checksum_want = t_3; - } - if ( ! self->private_impl.f_ignore_checksum && (v_checksum_got != v_checksum_want)) { - status = wuffs_base__make_status(wuffs_zlib__error__bad_checksum); + continue; + } else if (((uint64_t)(io2_a_src - iop_a_src)) > 0u) { + status = wuffs_base__make_status(wuffs_png__error__internal_error_zlib_decoder_did_not_exhaust_its_input); goto exit; } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(11); + } + if (self->private_impl.f_workbuf_wi != self->private_impl.f_pass_workbuf_length) { + status = wuffs_base__make_status(wuffs_base__error__not_enough_data); + goto exit; + } else if (0u < ((uint64_t)(a_workbuf.len))) { + if (a_workbuf.ptr[0u] == 4u) { + a_workbuf.ptr[0u] = 1u; + } } ok: - self->private_impl.p_do_transform_io = 0; + self->private_impl.p_decode_pass = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_do_transform_io.v_checksum_got = v_checksum_got; + self->private_impl.p_decode_pass = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } if (a_src && a_src->data.ptr) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } @@ -56052,372 +69752,1128 @@ wuffs_zlib__decoder__do_transform_io( return status; } -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ZLIB) +// -------- func png.decoder.frame_dirty_rect -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__PNG) +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_png__decoder__frame_dirty_rect( + const wuffs_png__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_rect_ie_u32(); + } -// ---------------- Status Codes Implementations + return wuffs_base__utility__make_rect_ie_u32( + self->private_impl.f_frame_rect_x0, + self->private_impl.f_frame_rect_y0, + self->private_impl.f_frame_rect_x1, + self->private_impl.f_frame_rect_y1); +} -const char wuffs_png__error__bad_animation_sequence_number[] = "#png: bad animation sequence number"; -const char wuffs_png__error__bad_checksum[] = "#png: bad checksum"; -const char wuffs_png__error__bad_chunk[] = "#png: bad chunk"; -const char wuffs_png__error__bad_filter[] = "#png: bad filter"; -const char wuffs_png__error__bad_header[] = "#png: bad header"; -const char wuffs_png__error__bad_text_chunk_not_latin_1[] = "#png: bad text chunk (not Latin-1)"; -const char wuffs_png__error__missing_palette[] = "#png: missing palette"; -const char wuffs_png__error__truncated_input[] = "#png: truncated input"; -const char wuffs_png__error__unsupported_cgbi_extension[] = "#png: unsupported CgBI extension"; -const char wuffs_png__error__unsupported_png_compression_method[] = "#png: unsupported PNG compression method"; -const char wuffs_png__error__unsupported_png_file[] = "#png: unsupported PNG file"; -const char wuffs_png__error__internal_error_inconsistent_i_o[] = "#png: internal error: inconsistent I/O"; -const char wuffs_png__error__internal_error_inconsistent_chunk_type[] = "#png: internal error: inconsistent chunk type"; -const char wuffs_png__error__internal_error_inconsistent_workbuf_length[] = "#png: internal error: inconsistent workbuf length"; -const char wuffs_png__error__internal_error_zlib_decoder_did_not_exhaust_its_input[] = "#png: internal error: zlib decoder did not exhaust its input"; +// -------- func png.decoder.num_animation_loops -// ---------------- Private Consts +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_png__decoder__num_animation_loops( + const wuffs_png__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } -#define WUFFS_PNG__ANCILLARY_BIT 32u + return self->private_impl.f_num_animation_loops_value; +} -static const uint8_t -WUFFS_PNG__INTERLACING[8][6] WUFFS_BASE__POTENTIALLY_UNUSED = { - { - 0u, 0u, 0u, 0u, 0u, 0u, - }, { - 3u, 7u, 0u, 3u, 7u, 0u, - }, { - 3u, 3u, 4u, 3u, 7u, 0u, - }, { - 2u, 3u, 0u, 3u, 3u, 4u, - }, { - 2u, 1u, 2u, 2u, 3u, 0u, - }, { - 1u, 1u, 0u, 2u, 1u, 2u, - }, { - 1u, 0u, 1u, 1u, 1u, 0u, - }, { - 0u, 0u, 0u, 1u, 0u, 1u, - }, -}; +// -------- func png.decoder.num_decoded_frame_configs -static const uint8_t -WUFFS_PNG__LOW_BIT_DEPTH_MULTIPLIERS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0u, 255u, 85u, 0u, 17u, 0u, 0u, 0u, -}; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_png__decoder__num_decoded_frame_configs( + const wuffs_png__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } -static const uint8_t -WUFFS_PNG__LOW_BIT_DEPTH_NUM_PACKS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0u, 8u, 4u, 0u, 2u, 0u, 0u, 0u, -}; + return ((uint64_t)(self->private_impl.f_num_decoded_frame_configs_value)); +} -static const uint8_t -WUFFS_PNG__NUM_CHANNELS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { - 1u, 0u, 3u, 1u, 2u, 0u, 4u, 0u, -}; +// -------- func png.decoder.num_decoded_frames -static const uint16_t -WUFFS_PNG__LATIN_1[256] WUFFS_BASE__POTENTIALLY_UNUSED = { - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 32u, 33u, 34u, 35u, 36u, 37u, 38u, 39u, - 40u, 41u, 42u, 43u, 44u, 45u, 46u, 47u, - 48u, 49u, 50u, 51u, 52u, 53u, 54u, 55u, - 56u, 57u, 58u, 59u, 60u, 61u, 62u, 63u, - 64u, 65u, 66u, 67u, 68u, 69u, 70u, 71u, - 72u, 73u, 74u, 75u, 76u, 77u, 78u, 79u, - 80u, 81u, 82u, 83u, 84u, 85u, 86u, 87u, - 88u, 89u, 90u, 91u, 92u, 93u, 94u, 95u, - 96u, 97u, 98u, 99u, 100u, 101u, 102u, 103u, - 104u, 105u, 106u, 107u, 108u, 109u, 110u, 111u, - 112u, 113u, 114u, 115u, 116u, 117u, 118u, 119u, - 120u, 121u, 122u, 123u, 124u, 125u, 126u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, - 0u, 41410u, 41666u, 41922u, 42178u, 42434u, 42690u, 42946u, - 43202u, 43458u, 43714u, 43970u, 44226u, 44482u, 44738u, 44994u, - 45250u, 45506u, 45762u, 46018u, 46274u, 46530u, 46786u, 47042u, - 47298u, 47554u, 47810u, 48066u, 48322u, 48578u, 48834u, 49090u, - 32963u, 33219u, 33475u, 33731u, 33987u, 34243u, 34499u, 34755u, - 35011u, 35267u, 35523u, 35779u, 36035u, 36291u, 36547u, 36803u, - 37059u, 37315u, 37571u, 37827u, 38083u, 38339u, 38595u, 38851u, - 39107u, 39363u, 39619u, 39875u, 40131u, 40387u, 40643u, 40899u, - 41155u, 41411u, 41667u, 41923u, 42179u, 42435u, 42691u, 42947u, - 43203u, 43459u, 43715u, 43971u, 44227u, 44483u, 44739u, 44995u, - 45251u, 45507u, 45763u, 46019u, 46275u, 46531u, 46787u, 47043u, - 47299u, 47555u, 47811u, 48067u, 48323u, 48579u, 48835u, 49091u, -}; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_png__decoder__num_decoded_frames( + const wuffs_png__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } -// ---------------- Private Initializer Prototypes + return ((uint64_t)(self->private_impl.f_num_decoded_frames_value)); +} + +// -------- func png.decoder.restart_frame + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_png__decoder__restart_frame( + wuffs_png__decoder* self, + uint64_t a_index, + uint64_t a_io_position) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + if (self->private_impl.f_call_sequence < 32u) { + return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + } else if ((a_index >= ((uint64_t)(self->private_impl.f_num_animation_frames_value))) || ((a_index == 0u) && (a_io_position != self->private_impl.f_first_config_io_position))) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + self->private_impl.f_call_sequence = 40u; + if (self->private_impl.f_interlace_pass >= 1u) { + self->private_impl.f_interlace_pass = 1u; + } + self->private_impl.f_frame_config_io_position = a_io_position; + self->private_impl.f_num_decoded_frame_configs_value = ((uint32_t)(a_index)); + self->private_impl.f_num_decoded_frames_value = self->private_impl.f_num_decoded_frame_configs_value; + return wuffs_base__make_status(NULL); +} -// ---------------- Private Function Prototypes +// -------- func png.decoder.set_report_metadata -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1_distance_4_arm_neon( +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_png__decoder__set_report_metadata( wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr); -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) + uint32_t a_fourcc, + bool a_report) { + if (!self) { + return wuffs_base__make_empty_struct(); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_empty_struct(); + } -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3_distance_4_arm_neon( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) + if (a_fourcc == 1128813133u) { + self->private_impl.f_report_metadata_chrm = a_report; + } else if (a_fourcc == 1163413830u) { + self->private_impl.f_report_metadata_exif = a_report; + } else if (a_fourcc == 1195461953u) { + self->private_impl.f_report_metadata_gama = a_report; + } else if (a_fourcc == 1229144912u) { + self->private_impl.f_report_metadata_iccp = a_report; + } else if (a_fourcc == 1263947808u) { + self->private_impl.f_report_metadata_kvp = a_report; + } else if (a_fourcc == 1397901122u) { + self->private_impl.f_report_metadata_srgb = a_report; + } + return wuffs_base__make_empty_struct(); +} -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_3_arm_neon( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) +// -------- func png.decoder.tell_me_more -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_4_arm_neon( +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_png__decoder__tell_me_more( wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 4)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr); + wuffs_base__status v_status = wuffs_base__make_status(NULL); -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1__choosy_default( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr); + uint32_t coro_susp_point = self->private_impl.p_tell_me_more; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1_distance_3_fallback( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr); + while (true) { + { + wuffs_base__status t_0 = wuffs_png__decoder__do_tell_me_more(self, a_dst, a_minfo, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_png__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1_distance_4_fallback( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr); + ok: + self->private_impl.p_tell_me_more = 0; + goto exit; + } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_2( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); + goto suspend; + suspend: + self->private_impl.p_tell_me_more = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 4 : 0; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3__choosy_default( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); +// -------- func png.decoder.do_tell_me_more WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3_distance_3_fallback( +static wuffs_base__status +wuffs_png__decoder__do_tell_me_more( wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3_distance_4_fallback( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); + uint8_t v_c8 = 0; + uint16_t v_c16 = 0; + wuffs_base__io_buffer u_w = wuffs_base__empty_io_buffer(); + wuffs_base__io_buffer* v_w = &u_w; + uint8_t* iop_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io0_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint64_t v_num_written = 0; + uint64_t v_w_mark = 0; + uint64_t v_r_mark = 0; + wuffs_base__status v_zlib_status = wuffs_base__make_status(NULL); + + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } + } + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_tell_me_more; + if (coro_susp_point) { + v_zlib_status = self->private_data.s_do_tell_me_more.v_zlib_status; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (((uint8_t)(self->private_impl.f_call_sequence & 16u)) == 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + goto exit; + } + if (self->private_impl.f_metadata_fourcc == 0u) { + status = wuffs_base__make_status(wuffs_base__error__no_more_information); + goto exit; + } + do { + if (self->private_impl.f_metadata_flavor == 3u) { + while (true) { + if (wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))) != self->private_impl.f_metadata_y) { + status = wuffs_base__make_status(wuffs_base__error__bad_i_o_position); + goto exit; + } else if (a_minfo != NULL) { + wuffs_base__more_information__set(a_minfo, + self->private_impl.f_metadata_flavor, + self->private_impl.f_metadata_fourcc, + self->private_impl.f_metadata_x, + self->private_impl.f_metadata_y, + self->private_impl.f_metadata_z); + } + if (self->private_impl.f_metadata_y >= self->private_impl.f_metadata_z) { + goto label__goto_done__break; + } + self->private_impl.f_metadata_y = self->private_impl.f_metadata_z; + status = wuffs_base__make_status(wuffs_base__suspension__even_more_information); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + } + if (self->private_impl.f_metadata_is_zlib_compressed) { + if (self->private_impl.f_zlib_is_dirty) { + wuffs_private_impl__ignore_status(wuffs_zlib__decoder__initialize(&self->private_data.f_zlib, + sizeof (wuffs_zlib__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + if (self->private_impl.f_ignore_checksum) { + wuffs_zlib__decoder__set_quirk(&self->private_data.f_zlib, 1u, 1u); + } + } + self->private_impl.f_zlib_is_dirty = true; + self->private_impl.f_ztxt_hist_pos = 0u; + } + label__loop__continue:; + while (true) { + if (a_minfo != NULL) { + wuffs_base__more_information__set(a_minfo, + self->private_impl.f_metadata_flavor, + self->private_impl.f_metadata_fourcc, + self->private_impl.f_metadata_x, + self->private_impl.f_metadata_y, + self->private_impl.f_metadata_z); + } + if (self->private_impl.f_metadata_flavor != 4u) { + break; + } + if (self->private_impl.f_metadata_is_zlib_compressed) { + if (self->private_impl.f_chunk_type == 1346585449u) { + { + const bool o_0_closed_a_src = a_src->meta.closed; + const uint8_t* o_0_io2_a_src = io2_a_src; + wuffs_private_impl__io_reader__limit(&io2_a_src, iop_a_src, + ((uint64_t)(self->private_impl.f_chunk_length))); + if (a_src) { + size_t n = ((size_t)(io2_a_src - a_src->data.ptr)); + a_src->meta.closed = a_src->meta.closed && (a_src->meta.wi <= n); + a_src->meta.wi = n; + } + v_r_mark = ((uint64_t)(iop_a_src - io0_a_src)); + { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_0 = wuffs_zlib__decoder__transform_io(&self->private_data.f_zlib, a_dst, a_src, wuffs_base__utility__empty_slice_u8()); + v_zlib_status = t_0; + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_chunk_length, ((uint32_t)(wuffs_private_impl__io__count_since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)))))); + io2_a_src = o_0_io2_a_src; + if (a_src) { + a_src->meta.closed = o_0_closed_a_src; + a_src->meta.wi = ((size_t)(io2_a_src - a_src->data.ptr)); + } + } + if (wuffs_base__status__is_ok(&v_zlib_status)) { + self->private_impl.f_metadata_is_zlib_compressed = false; + break; + } else if ( ! wuffs_base__status__is_suspension(&v_zlib_status)) { + status = v_zlib_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + status = v_zlib_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + } else if (self->private_impl.f_chunk_type == 1951945833u) { + { + const bool o_1_closed_a_src = a_src->meta.closed; + const uint8_t* o_1_io2_a_src = io2_a_src; + wuffs_private_impl__io_reader__limit(&io2_a_src, iop_a_src, + ((uint64_t)(self->private_impl.f_chunk_length))); + if (a_src) { + size_t n = ((size_t)(io2_a_src - a_src->data.ptr)); + a_src->meta.closed = a_src->meta.closed && (a_src->meta.wi <= n); + a_src->meta.wi = n; + } + v_r_mark = ((uint64_t)(iop_a_src - io0_a_src)); + { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_1 = wuffs_zlib__decoder__transform_io(&self->private_data.f_zlib, a_dst, a_src, wuffs_base__utility__empty_slice_u8()); + v_zlib_status = t_1; + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_chunk_length, ((uint32_t)(wuffs_private_impl__io__count_since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)))))); + io2_a_src = o_1_io2_a_src; + if (a_src) { + a_src->meta.closed = o_1_closed_a_src; + a_src->meta.wi = ((size_t)(io2_a_src - a_src->data.ptr)); + } + } + if (wuffs_base__status__is_ok(&v_zlib_status)) { + self->private_impl.f_metadata_is_zlib_compressed = false; + break; + } else if ( ! wuffs_base__status__is_suspension(&v_zlib_status)) { + status = v_zlib_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + status = v_zlib_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); + } else if (self->private_impl.f_chunk_type == 1951945850u) { + if (self->private_impl.f_ztxt_ri == self->private_impl.f_ztxt_wi) { + { + wuffs_base__io_buffer* o_2_v_w = v_w; + uint8_t* o_2_iop_v_w = iop_v_w; + uint8_t* o_2_io0_v_w = io0_v_w; + uint8_t* o_2_io1_v_w = io1_v_w; + uint8_t* o_2_io2_v_w = io2_v_w; + v_w = wuffs_private_impl__io_writer__set( + &u_w, + &iop_v_w, + &io0_v_w, + &io1_v_w, + &io2_v_w, + wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024), + self->private_impl.f_ztxt_hist_pos); + { + const bool o_3_closed_a_src = a_src->meta.closed; + const uint8_t* o_3_io2_a_src = io2_a_src; + wuffs_private_impl__io_reader__limit(&io2_a_src, iop_a_src, + ((uint64_t)(self->private_impl.f_chunk_length))); + if (a_src) { + size_t n = ((size_t)(io2_a_src - a_src->data.ptr)); + a_src->meta.closed = a_src->meta.closed && (a_src->meta.wi <= n); + a_src->meta.wi = n; + } + v_w_mark = ((uint64_t)(iop_v_w - io0_v_w)); + v_r_mark = ((uint64_t)(iop_a_src - io0_a_src)); + { + u_w.meta.wi = ((size_t)(iop_v_w - u_w.data.ptr)); + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_2 = wuffs_zlib__decoder__transform_io(&self->private_data.f_zlib, v_w, a_src, wuffs_base__utility__empty_slice_u8()); + v_zlib_status = t_2; + iop_v_w = u_w.data.ptr + u_w.meta.wi; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_chunk_length, ((uint32_t)(wuffs_private_impl__io__count_since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)))))); + v_num_written = wuffs_private_impl__io__count_since(v_w_mark, ((uint64_t)(iop_v_w - io0_v_w))); + io2_a_src = o_3_io2_a_src; + if (a_src) { + a_src->meta.closed = o_3_closed_a_src; + a_src->meta.wi = ((size_t)(io2_a_src - a_src->data.ptr)); + } + } + v_w = o_2_v_w; + iop_v_w = o_2_iop_v_w; + io0_v_w = o_2_io0_v_w; + io1_v_w = o_2_io1_v_w; + io2_v_w = o_2_io2_v_w; + } + if (v_num_written > 1024u) { + status = wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_i_o); + goto exit; + } + self->private_impl.f_ztxt_ri = 0u; + self->private_impl.f_ztxt_wi = ((uint32_t)(v_num_written)); + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_ztxt_hist_pos, v_num_written); + } + while (self->private_impl.f_ztxt_ri < self->private_impl.f_ztxt_wi) { + v_c16 = WUFFS_PNG__LATIN_1[self->private_data.f_dst_palette[self->private_impl.f_ztxt_ri]]; + if (v_c16 == 0u) { + status = wuffs_base__make_status(wuffs_png__error__bad_text_chunk_not_latin_1); + goto exit; + } else if (v_c16 <= 127u) { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); + goto label__loop__continue; + } + self->private_impl.f_ztxt_ri += 1u; + (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)(v_c16))), iop_a_dst += 1); + } else { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 1u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); + goto label__loop__continue; + } + self->private_impl.f_ztxt_ri += 1u; + (wuffs_base__poke_u16le__no_bounds_check(iop_a_dst, v_c16), iop_a_dst += 2); + } + } + if (wuffs_base__status__is_ok(&v_zlib_status)) { + self->private_impl.f_metadata_is_zlib_compressed = false; + break; + } else if ( ! wuffs_base__status__is_suspension(&v_zlib_status)) { + status = v_zlib_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } else if (v_zlib_status.repr != wuffs_base__suspension__short_write) { + status = v_zlib_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); + } + } else { + status = wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_chunk_type); + goto exit; + } + } else if ((self->private_impl.f_chunk_type == 1951945833u) && (self->private_impl.f_metadata_fourcc == 1263947862u)) { + while (true) { + if (self->private_impl.f_chunk_length <= 0u) { + goto label__loop__break; + } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); + goto label__loop__continue; + } else if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); + goto label__loop__continue; + } + self->private_impl.f_chunk_length -= 1u; + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, v_c8), iop_a_dst += 1); + } + } else { + while (true) { + if (self->private_impl.f_chunk_length <= 0u) { + if (self->private_impl.f_metadata_fourcc == 1263947851u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + goto label__loop__break; + } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); + goto label__loop__continue; + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + if (v_c8 == 0u) { + self->private_impl.f_chunk_length -= 1u; + iop_a_src += 1u; + goto label__loop__break; + } + v_c16 = WUFFS_PNG__LATIN_1[v_c8]; + if (v_c16 == 0u) { + status = wuffs_base__make_status(wuffs_png__error__bad_text_chunk_not_latin_1); + goto exit; + } else if (v_c16 <= 127u) { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(10); + goto label__loop__continue; + } + self->private_impl.f_chunk_length -= 1u; + iop_a_src += 1u; + (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)(v_c16))), iop_a_dst += 1); + } else { + if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 1u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(11); + goto label__loop__continue; + } + self->private_impl.f_chunk_length -= 1u; + iop_a_src += 1u; + (wuffs_base__poke_u16le__no_bounds_check(iop_a_dst, v_c16), iop_a_dst += 2); + } + } + } + } + label__loop__break:; + if (self->private_impl.f_metadata_fourcc == 1263947851u) { + self->private_impl.f_metadata_fourcc = 1263947862u; + if (self->private_impl.f_chunk_type == 1951945833u) { + if (self->private_impl.f_chunk_length <= 1u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_length -= 2u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_c8 = t_3; + } + if (v_c8 == 0u) { + self->private_impl.f_metadata_is_zlib_compressed = false; + } else if (v_c8 == 1u) { + self->private_impl.f_metadata_is_zlib_compressed = true; + } else { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_4 = *iop_a_src++; + v_c8 = t_4; + } + if ((v_c8 != 0u) && self->private_impl.f_metadata_is_zlib_compressed) { + status = wuffs_base__make_status(wuffs_png__error__unsupported_png_compression_method); + goto exit; + } + self->private_impl.f_metadata_fourcc -= 2u; + while (self->private_impl.f_metadata_fourcc != 1263947862u) { + self->private_impl.f_metadata_fourcc += 1u; + while (true) { + if (self->private_impl.f_chunk_length <= 0u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_length -= 1u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_5 = *iop_a_src++; + v_c8 = t_5; + } + if (v_c8 == 0u) { + break; + } + } + } + } else if (self->private_impl.f_chunk_type == 1951945850u) { + if (self->private_impl.f_chunk_length <= 0u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_impl.f_chunk_length -= 1u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_6 = *iop_a_src++; + v_c8 = t_6; + } + if (v_c8 != 0u) { + status = wuffs_base__make_status(wuffs_png__error__unsupported_png_compression_method); + goto exit; + } + self->private_impl.f_metadata_is_zlib_compressed = true; + } + self->private_impl.f_call_sequence &= 239u; + status = wuffs_base__make_status(NULL); + goto ok; + } + } while (0); + label__goto_done__break:; + if (self->private_impl.f_chunk_length != 0u) { + status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + goto exit; + } + self->private_data.s_do_tell_me_more.scratch = 4u; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); + if (self->private_data.s_do_tell_me_more.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_tell_me_more.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_tell_me_more.scratch; + self->private_impl.f_metadata_flavor = 0u; + self->private_impl.f_metadata_fourcc = 0u; + self->private_impl.f_metadata_x = 0u; + self->private_impl.f_metadata_y = 0u; + self->private_impl.f_metadata_z = 0u; + self->private_impl.f_call_sequence &= 239u; + status = wuffs_base__make_status(NULL); + goto ok; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); + ok: + self->private_impl.p_do_tell_me_more = 0; + goto exit; + } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4__choosy_default( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); + goto suspend; + suspend: + self->private_impl.p_do_tell_me_more = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_tell_me_more.v_zlib_status = v_zlib_status; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_3_fallback( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_4_fallback( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); + return status; +} -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1_distance_4_x86_sse42( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr); -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +// -------- func png.decoder.workbuf_len -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3_distance_4_x86_sse42( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_png__decoder__workbuf_len( + const wuffs_png__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_3_x86_sse42( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) + return wuffs_base__utility__make_range_ii_u64(self->private_impl.f_overall_workbuf_length, self->private_impl.f_overall_workbuf_length); +} -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_4_x86_sse42( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev); -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) +// -------- func png.decoder.filter_and_swizzle WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__do_decode_image_config( +wuffs_png__decoder__filter_and_swizzle( wuffs_png__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src); + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf) { + return (*self->private_impl.choosy_filter_and_swizzle)(self, a_dst, a_workbuf); +} WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__decode_ihdr( +wuffs_png__decoder__filter_and_swizzle__choosy_default( wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__assign_filter_distance( - wuffs_png__decoder* self); + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint64_t v_dst_bytes_per_pixel = 0; + uint64_t v_dst_bytes_per_row0 = 0; + uint64_t v_dst_bytes_per_row1 = 0; + wuffs_base__slice_u8 v_dst_palette = {0}; + wuffs_base__table_u8 v_tab = {0}; + uint32_t v_y = 0; + wuffs_base__slice_u8 v_dst = {0}; + uint8_t v_filter = 0; + wuffs_base__slice_u8 v_curr_row = {0}; + wuffs_base__slice_u8 v_prev_row = {0}; -WUFFS_BASE__GENERATED_C_CODE -static uint64_t -wuffs_png__decoder__calculate_bytes_per_row( - const wuffs_png__decoder* self, - uint32_t a_width); + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + return wuffs_base__make_status(wuffs_base__error__unsupported_option); + } + v_dst_bytes_per_pixel = ((uint64_t)((v_dst_bits_per_pixel / 8u))); + v_dst_bytes_per_row0 = (((uint64_t)(self->private_impl.f_frame_rect_x0)) * v_dst_bytes_per_pixel); + v_dst_bytes_per_row1 = (((uint64_t)(self->private_impl.f_frame_rect_x1)) * v_dst_bytes_per_pixel); + v_dst_palette = wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)); + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + if (v_dst_bytes_per_row1 < ((uint64_t)(v_tab.width))) { + v_tab = wuffs_base__table_u8__subtable_ij(v_tab, + 0u, + 0u, + v_dst_bytes_per_row1, + ((uint64_t)(v_tab.height))); + } + if (v_dst_bytes_per_row0 < ((uint64_t)(v_tab.width))) { + v_tab = wuffs_base__table_u8__subtable_ij(v_tab, + v_dst_bytes_per_row0, + 0u, + ((uint64_t)(v_tab.width)), + ((uint64_t)(v_tab.height))); + } else { + v_tab = wuffs_base__table_u8__subtable_ij(v_tab, + 0u, + 0u, + 0u, + 0u); + } + v_y = self->private_impl.f_frame_rect_y0; + while (v_y < self->private_impl.f_frame_rect_y1) { + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, v_y); + if (1u > ((uint64_t)(a_workbuf.len))) { + return wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_workbuf_length); + } + v_filter = a_workbuf.ptr[0u]; + a_workbuf = wuffs_base__slice_u8__subslice_i(a_workbuf, 1u); + if (self->private_impl.f_pass_bytes_per_row > ((uint64_t)(a_workbuf.len))) { + return wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_workbuf_length); + } + v_curr_row = wuffs_base__slice_u8__subslice_j(a_workbuf, self->private_impl.f_pass_bytes_per_row); + a_workbuf = wuffs_base__slice_u8__subslice_i(a_workbuf, self->private_impl.f_pass_bytes_per_row); + if (v_filter == 0u) { + } else if (v_filter == 1u) { + wuffs_png__decoder__filter_1(self, v_curr_row); + } else if (v_filter == 2u) { + wuffs_png__decoder__filter_2(self, v_curr_row, v_prev_row); + } else if (v_filter == 3u) { + wuffs_png__decoder__filter_3(self, v_curr_row, v_prev_row); + } else if (v_filter == 4u) { + wuffs_png__decoder__filter_4(self, v_curr_row, v_prev_row); + } else { + return wuffs_base__make_status(wuffs_png__error__bad_filter); + } + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, v_curr_row); + v_prev_row = v_curr_row; + v_y += 1u; + } + return wuffs_base__make_status(NULL); +} -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__choose_filter_implementations( - wuffs_png__decoder* self); +// -------- func png.decoder.filter_and_swizzle_tricky WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__decode_other_chunk( +wuffs_png__decoder__filter_and_swizzle_tricky( wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src, - bool a_framy); + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint64_t v_dst_bytes_per_pixel = 0; + uint64_t v_dst_bytes_per_row1 = 0; + wuffs_base__slice_u8 v_dst_palette = {0}; + wuffs_base__table_u8 v_tab = {0}; + uint64_t v_src_bytes_per_pixel = 0; + uint32_t v_x = 0; + uint32_t v_y = 0; + uint64_t v_i = 0; + wuffs_base__slice_u8 v_dst = {0}; + uint8_t v_filter = 0; + wuffs_base__slice_u8 v_s = {0}; + wuffs_base__slice_u8 v_curr_row = {0}; + wuffs_base__slice_u8 v_prev_row = {0}; + uint8_t v_bits_unpacked[8] = {0}; + uint8_t v_bits_packed = 0; + uint8_t v_packs_remaining = 0; + uint8_t v_multiplier = 0; + uint8_t v_shift = 0; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_actl( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src); + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + return wuffs_base__make_status(wuffs_base__error__unsupported_option); + } + v_dst_bytes_per_pixel = ((uint64_t)((v_dst_bits_per_pixel / 8u))); + v_dst_bytes_per_row1 = (((uint64_t)(self->private_impl.f_frame_rect_x1)) * v_dst_bytes_per_pixel); + v_dst_palette = wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)); + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + v_src_bytes_per_pixel = 1u; + if (self->private_impl.f_depth >= 8u) { + v_src_bytes_per_pixel = (((uint64_t)(WUFFS_PNG__NUM_CHANNELS[self->private_impl.f_color_type])) * ((uint64_t)(((uint8_t)(self->private_impl.f_depth >> 3u))))); + } + if (self->private_impl.f_chunk_type_array[0u] == 73u) { + v_y = ((uint32_t)(WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][5u])); + } else { + v_y = self->private_impl.f_frame_rect_y0; + } + while (v_y < self->private_impl.f_frame_rect_y1) { + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, v_y); + if (v_dst_bytes_per_row1 < ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row1); + } + if (1u > ((uint64_t)(a_workbuf.len))) { + return wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_workbuf_length); + } + v_filter = a_workbuf.ptr[0u]; + a_workbuf = wuffs_base__slice_u8__subslice_i(a_workbuf, 1u); + if (self->private_impl.f_pass_bytes_per_row > ((uint64_t)(a_workbuf.len))) { + return wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_workbuf_length); + } + v_curr_row = wuffs_base__slice_u8__subslice_j(a_workbuf, self->private_impl.f_pass_bytes_per_row); + a_workbuf = wuffs_base__slice_u8__subslice_i(a_workbuf, self->private_impl.f_pass_bytes_per_row); + if (v_filter == 0u) { + } else if (v_filter == 1u) { + wuffs_png__decoder__filter_1(self, v_curr_row); + } else if (v_filter == 2u) { + wuffs_png__decoder__filter_2(self, v_curr_row, v_prev_row); + } else if (v_filter == 3u) { + wuffs_png__decoder__filter_3(self, v_curr_row, v_prev_row); + } else if (v_filter == 4u) { + wuffs_png__decoder__filter_4(self, v_curr_row, v_prev_row); + } else { + return wuffs_base__make_status(wuffs_png__error__bad_filter); + } + v_s = v_curr_row; + if (self->private_impl.f_chunk_type_array[0u] == 73u) { + v_x = ((uint32_t)(WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][2u])); + } else { + v_x = self->private_impl.f_frame_rect_x0; + } + if (self->private_impl.f_depth == 8u) { + while (v_x < self->private_impl.f_frame_rect_x1) { + v_i = (((uint64_t)(v_x)) * v_dst_bytes_per_pixel); + if (v_i <= ((uint64_t)(v_dst.len))) { + if (((uint32_t)(self->private_impl.f_remap_transparency)) != 0u) { + if (self->private_impl.f_color_type == 0u) { + if (1u <= ((uint64_t)(v_s.len))) { + v_bits_unpacked[0u] = v_s.ptr[0u]; + v_bits_unpacked[1u] = v_s.ptr[0u]; + v_bits_unpacked[2u] = v_s.ptr[0u]; + v_bits_unpacked[3u] = 255u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 1u); + if (((uint32_t)(self->private_impl.f_remap_transparency)) == ((((uint32_t)(v_bits_unpacked[0u])) << 0u) | + (((uint32_t)(v_bits_unpacked[1u])) << 8u) | + (((uint32_t)(v_bits_unpacked[2u])) << 16u) | + (((uint32_t)(v_bits_unpacked[3u])) << 24u))) { + v_bits_unpacked[0u] = 0u; + v_bits_unpacked[1u] = 0u; + v_bits_unpacked[2u] = 0u; + v_bits_unpacked[3u] = 0u; + } + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(v_bits_unpacked, 4)); + } + } else { + if (3u <= ((uint64_t)(v_s.len))) { + v_bits_unpacked[0u] = v_s.ptr[2u]; + v_bits_unpacked[1u] = v_s.ptr[1u]; + v_bits_unpacked[2u] = v_s.ptr[0u]; + v_bits_unpacked[3u] = 255u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 3u); + if (((uint32_t)(self->private_impl.f_remap_transparency)) == ((((uint32_t)(v_bits_unpacked[0u])) << 0u) | + (((uint32_t)(v_bits_unpacked[1u])) << 8u) | + (((uint32_t)(v_bits_unpacked[2u])) << 16u) | + (((uint32_t)(v_bits_unpacked[3u])) << 24u))) { + v_bits_unpacked[0u] = 0u; + v_bits_unpacked[1u] = 0u; + v_bits_unpacked[2u] = 0u; + v_bits_unpacked[3u] = 0u; + } + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(v_bits_unpacked, 4)); + } + } + } else if (v_src_bytes_per_pixel <= ((uint64_t)(v_s.len))) { + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__slice_u8__subslice_j(v_s, v_src_bytes_per_pixel)); + v_s = wuffs_base__slice_u8__subslice_i(v_s, v_src_bytes_per_pixel); + } + } + v_x += (((uint32_t)(1u)) << WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][0u]); + } + } else if (self->private_impl.f_depth < 8u) { + v_multiplier = 1u; + if (self->private_impl.f_color_type == 0u) { + v_multiplier = WUFFS_PNG__LOW_BIT_DEPTH_MULTIPLIERS[self->private_impl.f_depth]; + } + v_shift = ((uint8_t)(((uint8_t)(8u - self->private_impl.f_depth)) & 7u)); + v_packs_remaining = 0u; + while (v_x < self->private_impl.f_frame_rect_x1) { + v_i = (((uint64_t)(v_x)) * v_dst_bytes_per_pixel); + if (v_i <= ((uint64_t)(v_dst.len))) { + if ((v_packs_remaining == 0u) && (1u <= ((uint64_t)(v_s.len)))) { + v_packs_remaining = WUFFS_PNG__LOW_BIT_DEPTH_NUM_PACKS[self->private_impl.f_depth]; + v_bits_packed = v_s.ptr[0u]; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 1u); + } + v_bits_unpacked[0u] = ((uint8_t)(((uint8_t)(v_bits_packed >> v_shift)) * v_multiplier)); + v_bits_packed = ((uint8_t)(v_bits_packed << self->private_impl.f_depth)); + v_packs_remaining = ((uint8_t)(v_packs_remaining - 1u)); + if (((uint32_t)(self->private_impl.f_remap_transparency)) != 0u) { + v_bits_unpacked[1u] = v_bits_unpacked[0u]; + v_bits_unpacked[2u] = v_bits_unpacked[0u]; + v_bits_unpacked[3u] = 255u; + if (((uint32_t)(self->private_impl.f_remap_transparency)) == ((((uint32_t)(v_bits_unpacked[0u])) << 0u) | + (((uint32_t)(v_bits_unpacked[1u])) << 8u) | + (((uint32_t)(v_bits_unpacked[2u])) << 16u) | + (((uint32_t)(v_bits_unpacked[3u])) << 24u))) { + v_bits_unpacked[0u] = 0u; + v_bits_unpacked[1u] = 0u; + v_bits_unpacked[2u] = 0u; + v_bits_unpacked[3u] = 0u; + } + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(v_bits_unpacked, 4)); + } else { + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(v_bits_unpacked, 1)); + } + } + v_x += (((uint32_t)(1u)) << WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][0u]); + } + } else { + while (v_x < self->private_impl.f_frame_rect_x1) { + v_i = (((uint64_t)(v_x)) * v_dst_bytes_per_pixel); + if (v_i <= ((uint64_t)(v_dst.len))) { + if (self->private_impl.f_color_type == 0u) { + if (2u <= ((uint64_t)(v_s.len))) { + v_bits_unpacked[0u] = v_s.ptr[1u]; + v_bits_unpacked[1u] = v_s.ptr[0u]; + v_bits_unpacked[2u] = v_s.ptr[1u]; + v_bits_unpacked[3u] = v_s.ptr[0u]; + v_bits_unpacked[4u] = v_s.ptr[1u]; + v_bits_unpacked[5u] = v_s.ptr[0u]; + v_bits_unpacked[6u] = 255u; + v_bits_unpacked[7u] = 255u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 2u); + if (self->private_impl.f_remap_transparency == ((((uint64_t)(v_bits_unpacked[0u])) << 0u) | + (((uint64_t)(v_bits_unpacked[1u])) << 8u) | + (((uint64_t)(v_bits_unpacked[2u])) << 16u) | + (((uint64_t)(v_bits_unpacked[3u])) << 24u) | + (((uint64_t)(v_bits_unpacked[4u])) << 32u) | + (((uint64_t)(v_bits_unpacked[5u])) << 40u) | + (((uint64_t)(v_bits_unpacked[6u])) << 48u) | + (((uint64_t)(v_bits_unpacked[7u])) << 56u))) { + v_bits_unpacked[0u] = 0u; + v_bits_unpacked[1u] = 0u; + v_bits_unpacked[2u] = 0u; + v_bits_unpacked[3u] = 0u; + v_bits_unpacked[4u] = 0u; + v_bits_unpacked[5u] = 0u; + v_bits_unpacked[6u] = 0u; + v_bits_unpacked[7u] = 0u; + } + } + } else if (self->private_impl.f_color_type == 2u) { + if (6u <= ((uint64_t)(v_s.len))) { + v_bits_unpacked[0u] = v_s.ptr[5u]; + v_bits_unpacked[1u] = v_s.ptr[4u]; + v_bits_unpacked[2u] = v_s.ptr[3u]; + v_bits_unpacked[3u] = v_s.ptr[2u]; + v_bits_unpacked[4u] = v_s.ptr[1u]; + v_bits_unpacked[5u] = v_s.ptr[0u]; + v_bits_unpacked[6u] = 255u; + v_bits_unpacked[7u] = 255u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 6u); + if (self->private_impl.f_remap_transparency == ((((uint64_t)(v_bits_unpacked[0u])) << 0u) | + (((uint64_t)(v_bits_unpacked[1u])) << 8u) | + (((uint64_t)(v_bits_unpacked[2u])) << 16u) | + (((uint64_t)(v_bits_unpacked[3u])) << 24u) | + (((uint64_t)(v_bits_unpacked[4u])) << 32u) | + (((uint64_t)(v_bits_unpacked[5u])) << 40u) | + (((uint64_t)(v_bits_unpacked[6u])) << 48u) | + (((uint64_t)(v_bits_unpacked[7u])) << 56u))) { + v_bits_unpacked[0u] = 0u; + v_bits_unpacked[1u] = 0u; + v_bits_unpacked[2u] = 0u; + v_bits_unpacked[3u] = 0u; + v_bits_unpacked[4u] = 0u; + v_bits_unpacked[5u] = 0u; + v_bits_unpacked[6u] = 0u; + v_bits_unpacked[7u] = 0u; + } + } + } else if (self->private_impl.f_color_type == 4u) { + if (4u <= ((uint64_t)(v_s.len))) { + v_bits_unpacked[0u] = v_s.ptr[1u]; + v_bits_unpacked[1u] = v_s.ptr[0u]; + v_bits_unpacked[2u] = v_s.ptr[1u]; + v_bits_unpacked[3u] = v_s.ptr[0u]; + v_bits_unpacked[4u] = v_s.ptr[1u]; + v_bits_unpacked[5u] = v_s.ptr[0u]; + v_bits_unpacked[6u] = v_s.ptr[3u]; + v_bits_unpacked[7u] = v_s.ptr[2u]; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 4u); + } + } else { + if (8u <= ((uint64_t)(v_s.len))) { + v_bits_unpacked[0u] = v_s.ptr[5u]; + v_bits_unpacked[1u] = v_s.ptr[4u]; + v_bits_unpacked[2u] = v_s.ptr[3u]; + v_bits_unpacked[3u] = v_s.ptr[2u]; + v_bits_unpacked[4u] = v_s.ptr[1u]; + v_bits_unpacked[5u] = v_s.ptr[0u]; + v_bits_unpacked[6u] = v_s.ptr[7u]; + v_bits_unpacked[7u] = v_s.ptr[6u]; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 8u); + } + } + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(v_bits_unpacked, 8)); + } + v_x += (((uint32_t)(1u)) << WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][0u]); + } + } + v_prev_row = v_curr_row; + v_y += (((uint32_t)(1u)) << WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][3u]); + } + return wuffs_base__make_status(NULL); +} -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_chrm( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src); +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__PNG) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_exif( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src); +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__QOI) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_fctl( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src); +// ---------------- Status Codes Implementations -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_gama( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src); +const char wuffs_qoi__error__bad_footer[] = "#qoi: bad footer"; +const char wuffs_qoi__error__bad_header[] = "#qoi: bad header"; +const char wuffs_qoi__error__truncated_input[] = "#qoi: truncated input"; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_iccp( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src); +// ---------------- Private Consts -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_plte( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src); +// ---------------- Private Initializer Prototypes -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_srgb( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src); +// ---------------- Private Function Prototypes WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__decode_trns( - wuffs_png__decoder* self, +wuffs_qoi__decoder__do_decode_image_config( + wuffs_qoi__decoder* self, + wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__do_decode_frame_config( - wuffs_png__decoder* self, +wuffs_qoi__decoder__do_decode_frame_config( + wuffs_qoi__decoder* self, wuffs_base__frame_config* a_dst, wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__skip_frame( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__do_decode_frame( - wuffs_png__decoder* self, +wuffs_qoi__decoder__do_decode_frame( + wuffs_qoi__decoder* self, wuffs_base__pixel_buffer* a_dst, wuffs_base__io_buffer* a_src, wuffs_base__pixel_blend a_blend, @@ -56426,83 +70882,59 @@ wuffs_png__decoder__do_decode_frame( WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__decode_pass( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__do_tell_me_more( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, +wuffs_qoi__decoder__from_src_to_buffer( + wuffs_qoi__decoder* self, wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__filter_and_swizzle( - wuffs_png__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__slice_u8 a_workbuf); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__filter_and_swizzle__choosy_default( - wuffs_png__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__slice_u8 a_workbuf); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__filter_and_swizzle_tricky( - wuffs_png__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__slice_u8 a_workbuf); +wuffs_qoi__decoder__from_buffer_to_dst( + wuffs_qoi__decoder* self, + wuffs_base__pixel_buffer* a_dst); // ---------------- VTables const wuffs_base__image_decoder__func_ptrs -wuffs_png__decoder__func_ptrs_for__wuffs_base__image_decoder = { +wuffs_qoi__decoder__func_ptrs_for__wuffs_base__image_decoder = { (wuffs_base__status(*)(void*, wuffs_base__pixel_buffer*, wuffs_base__io_buffer*, wuffs_base__pixel_blend, wuffs_base__slice_u8, - wuffs_base__decode_frame_options*))(&wuffs_png__decoder__decode_frame), + wuffs_base__decode_frame_options*))(&wuffs_qoi__decoder__decode_frame), (wuffs_base__status(*)(void*, wuffs_base__frame_config*, - wuffs_base__io_buffer*))(&wuffs_png__decoder__decode_frame_config), + wuffs_base__io_buffer*))(&wuffs_qoi__decoder__decode_frame_config), (wuffs_base__status(*)(void*, wuffs_base__image_config*, - wuffs_base__io_buffer*))(&wuffs_png__decoder__decode_image_config), - (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_png__decoder__frame_dirty_rect), + wuffs_base__io_buffer*))(&wuffs_qoi__decoder__decode_image_config), + (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_qoi__decoder__frame_dirty_rect), (uint64_t(*)(const void*, - uint32_t))(&wuffs_png__decoder__get_quirk), - (uint32_t(*)(const void*))(&wuffs_png__decoder__num_animation_loops), - (uint64_t(*)(const void*))(&wuffs_png__decoder__num_decoded_frame_configs), - (uint64_t(*)(const void*))(&wuffs_png__decoder__num_decoded_frames), + uint32_t))(&wuffs_qoi__decoder__get_quirk), + (uint32_t(*)(const void*))(&wuffs_qoi__decoder__num_animation_loops), + (uint64_t(*)(const void*))(&wuffs_qoi__decoder__num_decoded_frame_configs), + (uint64_t(*)(const void*))(&wuffs_qoi__decoder__num_decoded_frames), (wuffs_base__status(*)(void*, uint64_t, - uint64_t))(&wuffs_png__decoder__restart_frame), + uint64_t))(&wuffs_qoi__decoder__restart_frame), (wuffs_base__status(*)(void*, uint32_t, - uint64_t))(&wuffs_png__decoder__set_quirk), + uint64_t))(&wuffs_qoi__decoder__set_quirk), (wuffs_base__empty_struct(*)(void*, uint32_t, - bool))(&wuffs_png__decoder__set_report_metadata), + bool))(&wuffs_qoi__decoder__set_report_metadata), (wuffs_base__status(*)(void*, wuffs_base__io_buffer*, wuffs_base__more_information*, - wuffs_base__io_buffer*))(&wuffs_png__decoder__tell_me_more), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_png__decoder__workbuf_len), + wuffs_base__io_buffer*))(&wuffs_qoi__decoder__tell_me_more), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_qoi__decoder__workbuf_len), }; // ---------------- Initializer Implementations wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_png__decoder__initialize( - wuffs_png__decoder* self, +wuffs_qoi__decoder__initialize( + wuffs_qoi__decoder* self, size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options){ @@ -56539,1484 +70971,1038 @@ wuffs_png__decoder__initialize( } } - self->private_impl.choosy_filter_1 = &wuffs_png__decoder__filter_1__choosy_default; - self->private_impl.choosy_filter_3 = &wuffs_png__decoder__filter_3__choosy_default; - self->private_impl.choosy_filter_4 = &wuffs_png__decoder__filter_4__choosy_default; - self->private_impl.choosy_filter_and_swizzle = &wuffs_png__decoder__filter_and_swizzle__choosy_default; - - { - wuffs_base__status z = wuffs_crc32__ieee_hasher__initialize( - &self->private_data.f_crc32, sizeof(self->private_data.f_crc32), WUFFS_VERSION, options); - if (z.repr) { - return z; - } - } - { - wuffs_base__status z = wuffs_zlib__decoder__initialize( - &self->private_data.f_zlib, sizeof(self->private_data.f_zlib), WUFFS_VERSION, options); - if (z.repr) { - return z; - } - } self->private_impl.magic = WUFFS_BASE__MAGIC; self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = wuffs_base__image_decoder__vtable_name; self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = - (const void*)(&wuffs_png__decoder__func_ptrs_for__wuffs_base__image_decoder); + (const void*)(&wuffs_qoi__decoder__func_ptrs_for__wuffs_base__image_decoder); return wuffs_base__make_status(NULL); } -wuffs_png__decoder* -wuffs_png__decoder__alloc(void) { - wuffs_png__decoder* x = - (wuffs_png__decoder*)(calloc(sizeof(wuffs_png__decoder), 1)); - if (!x) { - return NULL; - } - if (wuffs_png__decoder__initialize( - x, sizeof(wuffs_png__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; - } - return x; -} - -size_t -sizeof__wuffs_png__decoder(void) { - return sizeof(wuffs_png__decoder); -} - -// ---------------- Function Implementations - -// ‼ WUFFS MULTI-FILE SECTION +arm_neon -// -------- func png.decoder.filter_1_distance_4_arm_neon - -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1_distance_4_arm_neon( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr) { - wuffs_base__slice_u8 v_curr = {0}; - uint8x8_t v_fa = {0}; - uint8x8_t v_fx = {0}; - - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - v_curr.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8); - while (v_curr.ptr < i_end0_curr) { - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fx = vadd_u8(v_fx, v_fa); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fa = v_fx; - v_curr.ptr += 4; - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fx = vadd_u8(v_fx, v_fa); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fa = v_fx; - v_curr.ptr += 4; - } - v_curr.len = 4; - uint8_t* i_end1_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end1_curr) { - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fx = vadd_u8(v_fx, v_fa); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fa = v_fx; - v_curr.ptr += 4; - } - v_curr.len = 0; - } - return wuffs_base__make_empty_struct(); -} -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -// ‼ WUFFS MULTI-FILE SECTION -arm_neon - -// ‼ WUFFS MULTI-FILE SECTION +arm_neon -// -------- func png.decoder.filter_3_distance_4_arm_neon - -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3_distance_4_arm_neon( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - wuffs_base__slice_u8 v_curr = {0}; - wuffs_base__slice_u8 v_prev = {0}; - uint8x8_t v_fa = {0}; - uint8x8_t v_fb = {0}; - uint8x8_t v_fx = {0}; - - if (((uint64_t)(a_prev.len)) == 0u) { - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - v_curr.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8); - while (v_curr.ptr < i_end0_curr) { - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fa = v_fx; - v_curr.ptr += 4; - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fa = v_fx; - v_curr.ptr += 4; - } - v_curr.len = 4; - uint8_t* i_end1_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end1_curr) { - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fa = v_fx; - v_curr.ptr += 4; - } - v_curr.len = 0; - } - } else { - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - wuffs_base__slice_u8 i_slice_prev = a_prev; - v_prev.ptr = i_slice_prev.ptr; - i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8); - while (v_curr.ptr < i_end0_curr) { - v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fa = v_fx; - v_curr.ptr += 4; - v_prev.ptr += 4; - v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fa = v_fx; - v_curr.ptr += 4; - v_prev.ptr += 4; - } - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end1_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end1_curr) { - v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fx = vadd_u8(v_fx, vhadd_u8(v_fa, v_fb)); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fa = v_fx; - v_curr.ptr += 4; - v_prev.ptr += 4; - } - v_curr.len = 0; - v_prev.len = 0; - } - } - return wuffs_base__make_empty_struct(); -} -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -// ‼ WUFFS MULTI-FILE SECTION -arm_neon - -// ‼ WUFFS MULTI-FILE SECTION +arm_neon -// -------- func png.decoder.filter_4_distance_3_arm_neon - -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_3_arm_neon( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - wuffs_base__slice_u8 v_curr = {0}; - wuffs_base__slice_u8 v_prev = {0}; - uint8x8_t v_fa = {0}; - uint8x8_t v_fb = {0}; - uint8x8_t v_fc = {0}; - uint8x8_t v_fx = {0}; - uint16x8_t v_fafb = {0}; - uint16x8_t v_fcfc = {0}; - uint16x8_t v_pa = {0}; - uint16x8_t v_pb = {0}; - uint16x8_t v_pc = {0}; - uint16x8_t v_cmpab = {0}; - uint16x8_t v_cmpac = {0}; - uint8x8_t v_picka = {0}; - uint8x8_t v_pickb = {0}; - - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - wuffs_base__slice_u8 i_slice_prev = a_prev; - v_prev.ptr = i_slice_prev.ptr; - i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + wuffs_private_impl__iterate_total_advance((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)), 7, 6); - while (v_curr.ptr < i_end0_curr) { - v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fafb = vaddl_u8(v_fa, v_fb); - v_fcfc = vaddl_u8(v_fc, v_fc); - v_pa = vabdl_u8(v_fb, v_fc); - v_pb = vabdl_u8(v_fa, v_fc); - v_pc = vabdq_u16(v_fafb, v_fcfc); - v_cmpab = vcleq_u16(v_pa, v_pb); - v_cmpac = vcleq_u16(v_pa, v_pc); - v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); - v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); - v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); - wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fc = v_fb; - v_fa = v_fx; - v_curr.ptr += 3; - v_prev.ptr += 3; - v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fafb = vaddl_u8(v_fa, v_fb); - v_fcfc = vaddl_u8(v_fc, v_fc); - v_pa = vabdl_u8(v_fb, v_fc); - v_pb = vabdl_u8(v_fa, v_fc); - v_pc = vabdq_u16(v_fafb, v_fcfc); - v_cmpab = vcleq_u16(v_pa, v_pb); - v_cmpac = vcleq_u16(v_pa, v_pc); - v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); - v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); - v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); - wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fc = v_fb; - v_fa = v_fx; - v_curr.ptr += 3; - v_prev.ptr += 3; - } - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end1_curr = v_curr.ptr + wuffs_private_impl__iterate_total_advance((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)), 4, 3); - while (v_curr.ptr < i_end1_curr) { - v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fafb = vaddl_u8(v_fa, v_fb); - v_fcfc = vaddl_u8(v_fc, v_fc); - v_pa = vabdl_u8(v_fb, v_fc); - v_pb = vabdl_u8(v_fa, v_fc); - v_pc = vabdq_u16(v_fafb, v_fcfc); - v_cmpab = vcleq_u16(v_pa, v_pb); - v_cmpac = vcleq_u16(v_pa, v_pc); - v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); - v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); - v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); - wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fc = v_fb; - v_fa = v_fx; - v_curr.ptr += 3; - v_prev.ptr += 3; - } - v_curr.len = 3; - v_prev.len = 3; - uint8_t* i_end2_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3); - while (v_curr.ptr < i_end2_curr) { - v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u24le__no_bounds_check(v_prev.ptr))); - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u24le__no_bounds_check(v_curr.ptr))); - v_fafb = vaddl_u8(v_fa, v_fb); - v_fcfc = vaddl_u8(v_fc, v_fc); - v_pa = vabdl_u8(v_fb, v_fc); - v_pb = vabdl_u8(v_fa, v_fc); - v_pc = vabdq_u16(v_fafb, v_fcfc); - v_cmpab = vcleq_u16(v_pa, v_pb); - v_cmpac = vcleq_u16(v_pa, v_pc); - v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); - v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); - v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); - wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_curr.ptr += 3; - v_prev.ptr += 3; - } - v_curr.len = 0; - v_prev.len = 0; - } - return wuffs_base__make_empty_struct(); -} -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -// ‼ WUFFS MULTI-FILE SECTION -arm_neon - -// ‼ WUFFS MULTI-FILE SECTION +arm_neon -// -------- func png.decoder.filter_4_distance_4_arm_neon - -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_4_arm_neon( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - wuffs_base__slice_u8 v_curr = {0}; - wuffs_base__slice_u8 v_prev = {0}; - uint8x8_t v_fa = {0}; - uint8x8_t v_fb = {0}; - uint8x8_t v_fc = {0}; - uint8x8_t v_fx = {0}; - uint16x8_t v_fafb = {0}; - uint16x8_t v_fcfc = {0}; - uint16x8_t v_pa = {0}; - uint16x8_t v_pb = {0}; - uint16x8_t v_pc = {0}; - uint16x8_t v_cmpab = {0}; - uint16x8_t v_cmpac = {0}; - uint8x8_t v_picka = {0}; - uint8x8_t v_pickb = {0}; - - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - wuffs_base__slice_u8 i_slice_prev = a_prev; - v_prev.ptr = i_slice_prev.ptr; - i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8); - while (v_curr.ptr < i_end0_curr) { - v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fafb = vaddl_u8(v_fa, v_fb); - v_fcfc = vaddl_u8(v_fc, v_fc); - v_pa = vabdl_u8(v_fb, v_fc); - v_pb = vabdl_u8(v_fa, v_fc); - v_pc = vabdq_u16(v_fafb, v_fcfc); - v_cmpab = vcleq_u16(v_pa, v_pb); - v_cmpac = vcleq_u16(v_pa, v_pc); - v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); - v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); - v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fc = v_fb; - v_fa = v_fx; - v_curr.ptr += 4; - v_prev.ptr += 4; - v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fafb = vaddl_u8(v_fa, v_fb); - v_fcfc = vaddl_u8(v_fc, v_fc); - v_pa = vabdl_u8(v_fb, v_fc); - v_pb = vabdl_u8(v_fa, v_fc); - v_pc = vabdq_u16(v_fafb, v_fcfc); - v_cmpab = vcleq_u16(v_pa, v_pb); - v_cmpac = vcleq_u16(v_pa, v_pc); - v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); - v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); - v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fc = v_fb; - v_fa = v_fx; - v_curr.ptr += 4; - v_prev.ptr += 4; - } - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end1_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end1_curr) { - v_fb = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_fx = vreinterpret_u8_u32(vdup_n_u32(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_fafb = vaddl_u8(v_fa, v_fb); - v_fcfc = vaddl_u8(v_fc, v_fc); - v_pa = vabdl_u8(v_fb, v_fc); - v_pb = vabdl_u8(v_fa, v_fc); - v_pc = vabdq_u16(v_fafb, v_fcfc); - v_cmpab = vcleq_u16(v_pa, v_pb); - v_cmpac = vcleq_u16(v_pa, v_pc); - v_picka = vmovn_u16(vandq_u16(v_cmpab, v_cmpac)); - v_pickb = vmovn_u16(vcleq_u16(v_pb, v_pc)); - v_fx = vadd_u8(v_fx, vbsl_u8(v_picka, v_fa, vbsl_u8(v_pickb, v_fb, v_fc))); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, vget_lane_u32(vreinterpret_u32_u8(v_fx), 0u)); - v_fc = v_fb; - v_fa = v_fx; - v_curr.ptr += 4; - v_prev.ptr += 4; - } - v_curr.len = 0; - v_prev.len = 0; - } - return wuffs_base__make_empty_struct(); -} -#endif // defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) -// ‼ WUFFS MULTI-FILE SECTION -arm_neon - -// -------- func png.decoder.filter_1 +wuffs_qoi__decoder* +wuffs_qoi__decoder__alloc(void) { + wuffs_qoi__decoder* x = + (wuffs_qoi__decoder*)(calloc(1, sizeof(wuffs_qoi__decoder))); + if (!x) { + return NULL; + } + if (wuffs_qoi__decoder__initialize( + x, sizeof(wuffs_qoi__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr) { - return (*self->private_impl.choosy_filter_1)(self, a_curr); +size_t +sizeof__wuffs_qoi__decoder(void) { + return sizeof(wuffs_qoi__decoder); } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1__choosy_default( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr) { - uint64_t v_filter_distance = 0; - uint8_t v_fa = 0; - uint64_t v_i_start = 0; - uint64_t v_i = 0; +// ---------------- Function Implementations - v_filter_distance = ((uint64_t)(self->private_impl.f_filter_distance)); - v_i_start = 0u; - while (v_i_start < v_filter_distance) { - v_fa = 0u; - v_i = v_i_start; - while (v_i < ((uint64_t)(a_curr.len))) { - a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + v_fa)); - v_fa = a_curr.ptr[v_i]; - v_i += v_filter_distance; - } - v_i_start += 1u; +// -------- func qoi.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_qoi__decoder__get_quirk( + const wuffs_qoi__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; } - return wuffs_base__make_empty_struct(); + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return 0u; } -// -------- func png.decoder.filter_1_distance_3_fallback +// -------- func qoi.decoder.set_quirk WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1_distance_3_fallback( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr) { - wuffs_base__slice_u8 v_curr = {0}; - uint8_t v_fa0 = 0; - uint8_t v_fa1 = 0; - uint8_t v_fa2 = 0; - - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - v_curr.len = 3; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 6) * 6); - while (v_curr.ptr < i_end0_curr) { - v_fa0 = ((uint8_t)(v_fa0 + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)(v_fa1 + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)(v_fa2 + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_curr.ptr += 3; - v_fa0 = ((uint8_t)(v_fa0 + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)(v_fa1 + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)(v_fa2 + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_curr.ptr += 3; - } - v_curr.len = 3; - uint8_t* i_end1_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3); - while (v_curr.ptr < i_end1_curr) { - v_fa0 = ((uint8_t)(v_fa0 + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)(v_fa1 + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)(v_fa2 + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_curr.ptr += 3; - } - v_curr.len = 0; +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_qoi__decoder__set_quirk( + wuffs_qoi__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); } - return wuffs_base__make_empty_struct(); + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + return wuffs_base__make_status(wuffs_base__error__unsupported_option); } -// -------- func png.decoder.filter_1_distance_4_fallback +// -------- func qoi.decoder.decode_image_config WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1_distance_4_fallback( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr) { - wuffs_base__slice_u8 v_curr = {0}; - uint8_t v_fa0 = 0; - uint8_t v_fa1 = 0; - uint8_t v_fa2 = 0; - uint8_t v_fa3 = 0; +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_qoi__decoder__decode_image_config( + wuffs_qoi__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - v_curr.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end0_curr) { - v_fa0 = ((uint8_t)(v_fa0 + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)(v_fa1 + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)(v_fa2 + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_fa3 = ((uint8_t)(v_fa3 + v_curr.ptr[3u])); - v_curr.ptr[3u] = v_fa3; - v_curr.ptr += 4; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_image_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_qoi__decoder__do_decode_image_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_qoi__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } - v_curr.len = 0; - } - return wuffs_base__make_empty_struct(); -} -// -------- func png.decoder.filter_2 + ok: + self->private_impl.p_decode_image_config = 0; + goto exit; + } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_2( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - uint64_t v_n = 0; - uint64_t v_i = 0; + goto suspend; + suspend: + self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; - v_n = wuffs_base__u64__min(((uint64_t)(a_curr.len)), ((uint64_t)(a_prev.len))); - v_i = 0u; - while (v_i < v_n) { - a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + a_prev.ptr[v_i])); - v_i += 1u; + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; } - return wuffs_base__make_empty_struct(); + return status; } -// -------- func png.decoder.filter_3 +// -------- func qoi.decoder.do_decode_image_config WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - return (*self->private_impl.choosy_filter_3)(self, a_curr, a_prev); -} +static wuffs_base__status +wuffs_qoi__decoder__do_decode_image_config( + wuffs_qoi__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3__choosy_default( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - uint64_t v_filter_distance = 0; - uint64_t v_n = 0; - uint64_t v_i = 0; + uint32_t v_a = 0; - v_filter_distance = ((uint64_t)(self->private_impl.f_filter_distance)); - if (((uint64_t)(a_prev.len)) == 0u) { - v_i = v_filter_distance; - while (v_i < ((uint64_t)(a_curr.len))) { - a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + ((uint8_t)(a_curr.ptr[(v_i - v_filter_distance)] / 2u)))); - v_i += 1u; + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence != 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + goto exit; } - } else { - v_n = wuffs_base__u64__min(((uint64_t)(a_curr.len)), ((uint64_t)(a_prev.len))); - v_i = 0u; - while ((v_i < v_n) && (v_i < v_filter_distance)) { - a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + ((uint8_t)(a_prev.ptr[v_i] / 2u)))); - v_i += 1u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; + } + } + v_a = t_0; } - v_i = v_filter_distance; - while (v_i < v_n) { - a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + ((uint8_t)(((((uint32_t)(a_curr.ptr[(v_i - v_filter_distance)])) + ((uint32_t)(a_prev.ptr[v_i]))) / 2u))))); - v_i += 1u; + if (v_a != 1718185841u) { + status = wuffs_base__make_status(wuffs_qoi__error__bad_header); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); + if (num_bits_1 == 24) { + t_1 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)); + } + } + v_a = t_1; + } + if (v_a > 16777215u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); + goto exit; + } + self->private_impl.f_width = v_a; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + uint32_t t_2; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_2 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_2); + if (num_bits_2 == 24) { + t_2 = ((uint32_t)(*scratch >> 32)); + break; + } + num_bits_2 += 8u; + *scratch |= ((uint64_t)(num_bits_2)); + } + } + v_a = t_2; + } + if (v_a > 16777215u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); + goto exit; + } + self->private_impl.f_height = v_a; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint32_t t_3 = *iop_a_src++; + v_a = t_3; + } + if (v_a == 3u) { + self->private_impl.f_pixfmt = 2415954056u; + } else if (v_a == 4u) { + self->private_impl.f_pixfmt = 2164295816u; + } else { + status = wuffs_base__make_status(wuffs_qoi__error__bad_header); + goto exit; + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src++; + if (a_dst != NULL) { + wuffs_base__image_config__set( + a_dst, + self->private_impl.f_pixfmt, + 0u, + self->private_impl.f_width, + self->private_impl.f_height, + 14u, + (self->private_impl.f_pixfmt == 2415954056u)); } + self->private_impl.f_call_sequence = 32u; + + goto ok; + ok: + self->private_impl.p_do_decode_image_config = 0; + goto exit; } - return wuffs_base__make_empty_struct(); + + goto suspend; + suspend: + self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; } -// -------- func png.decoder.filter_3_distance_3_fallback +// -------- func qoi.decoder.decode_frame_config WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3_distance_3_fallback( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - wuffs_base__slice_u8 v_curr = {0}; - wuffs_base__slice_u8 v_prev = {0}; - uint8_t v_fa0 = 0; - uint8_t v_fa1 = 0; - uint8_t v_fa2 = 0; +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_qoi__decoder__decode_frame_config( + wuffs_qoi__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 2)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); - if (((uint64_t)(a_prev.len)) == 0u) { - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - v_curr.len = 3; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 6) * 6); - while (v_curr.ptr < i_end0_curr) { - v_fa0 = ((uint8_t)(((uint8_t)(v_fa0 / 2u)) + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)(((uint8_t)(v_fa1 / 2u)) + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)(((uint8_t)(v_fa2 / 2u)) + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_curr.ptr += 3; - v_fa0 = ((uint8_t)(((uint8_t)(v_fa0 / 2u)) + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)(((uint8_t)(v_fa1 / 2u)) + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)(((uint8_t)(v_fa2 / 2u)) + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_curr.ptr += 3; - } - v_curr.len = 3; - uint8_t* i_end1_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3); - while (v_curr.ptr < i_end1_curr) { - v_fa0 = ((uint8_t)(((uint8_t)(v_fa0 / 2u)) + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)(((uint8_t)(v_fa1 / 2u)) + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)(((uint8_t)(v_fa2 / 2u)) + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_curr.ptr += 3; - } - v_curr.len = 0; - } - } else { - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - wuffs_base__slice_u8 i_slice_prev = a_prev; - v_prev.ptr = i_slice_prev.ptr; - i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); - v_curr.len = 3; - v_prev.len = 3; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 6) * 6); - while (v_curr.ptr < i_end0_curr) { - v_fa0 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa0)) + ((uint32_t)(v_prev.ptr[0u]))) / 2u))) + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa1)) + ((uint32_t)(v_prev.ptr[1u]))) / 2u))) + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa2)) + ((uint32_t)(v_prev.ptr[2u]))) / 2u))) + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_curr.ptr += 3; - v_prev.ptr += 3; - v_fa0 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa0)) + ((uint32_t)(v_prev.ptr[0u]))) / 2u))) + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa1)) + ((uint32_t)(v_prev.ptr[1u]))) / 2u))) + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa2)) + ((uint32_t)(v_prev.ptr[2u]))) / 2u))) + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_curr.ptr += 3; - v_prev.ptr += 3; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_qoi__decoder__do_decode_frame_config(self, a_dst, a_src); + v_status = t_0; } - v_curr.len = 3; - v_prev.len = 3; - uint8_t* i_end1_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3); - while (v_curr.ptr < i_end1_curr) { - v_fa0 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa0)) + ((uint32_t)(v_prev.ptr[0u]))) / 2u))) + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa1)) + ((uint32_t)(v_prev.ptr[1u]))) / 2u))) + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa2)) + ((uint32_t)(v_prev.ptr[2u]))) / 2u))) + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_curr.ptr += 3; - v_prev.ptr += 3; + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_qoi__error__truncated_input); + goto exit; } - v_curr.len = 0; - v_prev.len = 0; + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } + + ok: + self->private_impl.p_decode_frame_config = 0; + goto exit; } - return wuffs_base__make_empty_struct(); + + goto suspend; + suspend: + self->private_impl.p_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; } -// -------- func png.decoder.filter_3_distance_4_fallback +// -------- func qoi.decoder.do_decode_frame_config WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3_distance_4_fallback( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - wuffs_base__slice_u8 v_curr = {0}; - wuffs_base__slice_u8 v_prev = {0}; - uint8_t v_fa0 = 0; - uint8_t v_fa1 = 0; - uint8_t v_fa2 = 0; - uint8_t v_fa3 = 0; +static wuffs_base__status +wuffs_qoi__decoder__do_decode_frame_config( + wuffs_qoi__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); - if (((uint64_t)(a_prev.len)) == 0u) { - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - v_curr.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end0_curr) { - v_fa0 = ((uint8_t)(((uint8_t)(v_fa0 / 2u)) + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)(((uint8_t)(v_fa1 / 2u)) + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)(((uint8_t)(v_fa2 / 2u)) + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_fa3 = ((uint8_t)(((uint8_t)(v_fa3 / 2u)) + v_curr.ptr[3u])); - v_curr.ptr[3u] = v_fa3; - v_curr.ptr += 4; + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence == 32u) { + } else if (self->private_impl.f_call_sequence < 32u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - v_curr.len = 0; - } - } else { - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - wuffs_base__slice_u8 i_slice_prev = a_prev; - v_prev.ptr = i_slice_prev.ptr; - i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end0_curr) { - v_fa0 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa0)) + ((uint32_t)(v_prev.ptr[0u]))) / 2u))) + v_curr.ptr[0u])); - v_curr.ptr[0u] = v_fa0; - v_fa1 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa1)) + ((uint32_t)(v_prev.ptr[1u]))) / 2u))) + v_curr.ptr[1u])); - v_curr.ptr[1u] = v_fa1; - v_fa2 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa2)) + ((uint32_t)(v_prev.ptr[2u]))) / 2u))) + v_curr.ptr[2u])); - v_curr.ptr[2u] = v_fa2; - v_fa3 = ((uint8_t)(((uint8_t)(((((uint32_t)(v_fa3)) + ((uint32_t)(v_prev.ptr[3u]))) / 2u))) + v_curr.ptr[3u])); - v_curr.ptr[3u] = v_fa3; - v_curr.ptr += 4; - v_prev.ptr += 4; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_qoi__decoder__do_decode_image_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; } - v_curr.len = 0; - v_prev.len = 0; + if (status.repr) { + goto suspend; + } + } else if (self->private_impl.f_call_sequence == 40u) { + if (14u != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_restart); + goto exit; + } + } else if (self->private_impl.f_call_sequence == 64u) { + self->private_impl.f_call_sequence = 96u; + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + if (a_dst != NULL) { + wuffs_base__frame_config__set( + a_dst, + wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height), + ((wuffs_base__flicks)(0u)), + 0u, + 14u, + 0u, + (self->private_impl.f_pixfmt == 2415954056u), + false, + 0u); } + self->private_impl.f_call_sequence = 64u; + + ok: + self->private_impl.p_do_decode_frame_config = 0; + goto exit; } - return wuffs_base__make_empty_struct(); -} -// -------- func png.decoder.filter_4 + goto suspend; + suspend: + self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - return (*self->private_impl.choosy_filter_4)(self, a_curr, a_prev); + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; } -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4__choosy_default( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - uint64_t v_filter_distance = 0; - uint64_t v_n = 0; - uint64_t v_i = 0; - uint32_t v_fa = 0; - uint32_t v_fb = 0; - uint32_t v_fc = 0; - uint32_t v_pp = 0; - uint32_t v_pa = 0; - uint32_t v_pb = 0; - uint32_t v_pc = 0; +// -------- func qoi.decoder.decode_frame - v_filter_distance = ((uint64_t)(self->private_impl.f_filter_distance)); - v_n = wuffs_base__u64__min(((uint64_t)(a_curr.len)), ((uint64_t)(a_prev.len))); - v_i = 0u; - while ((v_i < v_n) && (v_i < v_filter_distance)) { - a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + a_prev.ptr[v_i])); - v_i += 1u; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_qoi__decoder__decode_frame( + wuffs_qoi__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); } - v_i = v_filter_distance; - while (v_i < v_n) { - v_fa = ((uint32_t)(a_curr.ptr[(v_i - v_filter_distance)])); - v_fb = ((uint32_t)(a_prev.ptr[v_i])); - v_fc = ((uint32_t)(a_prev.ptr[(v_i - v_filter_distance)])); - v_pp = ((uint32_t)(((uint32_t)(v_fa + v_fb)) - v_fc)); - v_pa = ((uint32_t)(v_pp - v_fa)); - if (v_pa >= 2147483648u) { - v_pa = ((uint32_t)(0u - v_pa)); - } - v_pb = ((uint32_t)(v_pp - v_fb)); - if (v_pb >= 2147483648u) { - v_pb = ((uint32_t)(0u - v_pb)); - } - v_pc = ((uint32_t)(v_pp - v_fc)); - if (v_pc >= 2147483648u) { - v_pc = ((uint32_t)(0u - v_pc)); - } - if ((v_pa <= v_pb) && (v_pa <= v_pc)) { - } else if (v_pb <= v_pc) { - v_fa = v_fb; - } else { - v_fa = v_fc; - } - a_curr.ptr[v_i] = ((uint8_t)(a_curr.ptr[v_i] + ((uint8_t)(v_fa)))); - v_i += 1u; + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); } - return wuffs_base__make_empty_struct(); -} + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 3)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); -// -------- func png.decoder.filter_4_distance_3_fallback + wuffs_base__status v_status = wuffs_base__make_status(NULL); -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_3_fallback( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - wuffs_base__slice_u8 v_curr = {0}; - wuffs_base__slice_u8 v_prev = {0}; - uint32_t v_fa0 = 0; - uint32_t v_fa1 = 0; - uint32_t v_fa2 = 0; - uint32_t v_fb0 = 0; - uint32_t v_fb1 = 0; - uint32_t v_fb2 = 0; - uint32_t v_fc0 = 0; - uint32_t v_fc1 = 0; - uint32_t v_fc2 = 0; - uint32_t v_pp0 = 0; - uint32_t v_pp1 = 0; - uint32_t v_pp2 = 0; - uint32_t v_pa0 = 0; - uint32_t v_pa1 = 0; - uint32_t v_pa2 = 0; - uint32_t v_pb0 = 0; - uint32_t v_pb1 = 0; - uint32_t v_pb2 = 0; - uint32_t v_pc0 = 0; - uint32_t v_pc1 = 0; - uint32_t v_pc2 = 0; + uint32_t coro_susp_point = self->private_impl.p_decode_frame; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - wuffs_base__slice_u8 i_slice_prev = a_prev; - v_prev.ptr = i_slice_prev.ptr; - i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); - v_curr.len = 3; - v_prev.len = 3; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3); - while (v_curr.ptr < i_end0_curr) { - v_fb0 = ((uint32_t)(v_prev.ptr[0u])); - v_pp0 = ((uint32_t)(((uint32_t)(v_fa0 + v_fb0)) - v_fc0)); - v_pa0 = ((uint32_t)(v_pp0 - v_fa0)); - if (v_pa0 >= 2147483648u) { - v_pa0 = ((uint32_t)(0u - v_pa0)); - } - v_pb0 = ((uint32_t)(v_pp0 - v_fb0)); - if (v_pb0 >= 2147483648u) { - v_pb0 = ((uint32_t)(0u - v_pb0)); - } - v_pc0 = ((uint32_t)(v_pp0 - v_fc0)); - if (v_pc0 >= 2147483648u) { - v_pc0 = ((uint32_t)(0u - v_pc0)); - } - if ((v_pa0 <= v_pb0) && (v_pa0 <= v_pc0)) { - } else if (v_pb0 <= v_pc0) { - v_fa0 = v_fb0; - } else { - v_fa0 = v_fc0; - } - v_curr.ptr[0u] = ((uint8_t)(v_curr.ptr[0u] + ((uint8_t)(v_fa0)))); - v_fa0 = ((uint32_t)(v_curr.ptr[0u])); - v_fc0 = v_fb0; - v_fb1 = ((uint32_t)(v_prev.ptr[1u])); - v_pp1 = ((uint32_t)(((uint32_t)(v_fa1 + v_fb1)) - v_fc1)); - v_pa1 = ((uint32_t)(v_pp1 - v_fa1)); - if (v_pa1 >= 2147483648u) { - v_pa1 = ((uint32_t)(0u - v_pa1)); - } - v_pb1 = ((uint32_t)(v_pp1 - v_fb1)); - if (v_pb1 >= 2147483648u) { - v_pb1 = ((uint32_t)(0u - v_pb1)); - } - v_pc1 = ((uint32_t)(v_pp1 - v_fc1)); - if (v_pc1 >= 2147483648u) { - v_pc1 = ((uint32_t)(0u - v_pc1)); - } - if ((v_pa1 <= v_pb1) && (v_pa1 <= v_pc1)) { - } else if (v_pb1 <= v_pc1) { - v_fa1 = v_fb1; - } else { - v_fa1 = v_fc1; - } - v_curr.ptr[1u] = ((uint8_t)(v_curr.ptr[1u] + ((uint8_t)(v_fa1)))); - v_fa1 = ((uint32_t)(v_curr.ptr[1u])); - v_fc1 = v_fb1; - v_fb2 = ((uint32_t)(v_prev.ptr[2u])); - v_pp2 = ((uint32_t)(((uint32_t)(v_fa2 + v_fb2)) - v_fc2)); - v_pa2 = ((uint32_t)(v_pp2 - v_fa2)); - if (v_pa2 >= 2147483648u) { - v_pa2 = ((uint32_t)(0u - v_pa2)); - } - v_pb2 = ((uint32_t)(v_pp2 - v_fb2)); - if (v_pb2 >= 2147483648u) { - v_pb2 = ((uint32_t)(0u - v_pb2)); - } - v_pc2 = ((uint32_t)(v_pp2 - v_fc2)); - if (v_pc2 >= 2147483648u) { - v_pc2 = ((uint32_t)(0u - v_pc2)); + while (true) { + { + wuffs_base__status t_0 = wuffs_qoi__decoder__do_decode_frame(self, + a_dst, + a_src, + a_blend, + a_workbuf, + a_opts); + v_status = t_0; } - if ((v_pa2 <= v_pb2) && (v_pa2 <= v_pc2)) { - } else if (v_pb2 <= v_pc2) { - v_fa2 = v_fb2; - } else { - v_fa2 = v_fc2; + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_qoi__error__truncated_input); + goto exit; } - v_curr.ptr[2u] = ((uint8_t)(v_curr.ptr[2u] + ((uint8_t)(v_fa2)))); - v_fa2 = ((uint32_t)(v_curr.ptr[2u])); - v_fc2 = v_fb2; - v_curr.ptr += 3; - v_prev.ptr += 3; + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } - v_curr.len = 0; - v_prev.len = 0; + + ok: + self->private_impl.p_decode_frame = 0; + goto exit; } - return wuffs_base__make_empty_struct(); + + goto suspend; + suspend: + self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; } -// -------- func png.decoder.filter_4_distance_4_fallback +// -------- func qoi.decoder.do_decode_frame WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_4_fallback( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - wuffs_base__slice_u8 v_curr = {0}; - wuffs_base__slice_u8 v_prev = {0}; - uint32_t v_fa0 = 0; - uint32_t v_fa1 = 0; - uint32_t v_fa2 = 0; - uint32_t v_fa3 = 0; - uint32_t v_fb0 = 0; - uint32_t v_fb1 = 0; - uint32_t v_fb2 = 0; - uint32_t v_fb3 = 0; - uint32_t v_fc0 = 0; - uint32_t v_fc1 = 0; - uint32_t v_fc2 = 0; - uint32_t v_fc3 = 0; - uint32_t v_pp0 = 0; - uint32_t v_pp1 = 0; - uint32_t v_pp2 = 0; - uint32_t v_pp3 = 0; - uint32_t v_pa0 = 0; - uint32_t v_pa1 = 0; - uint32_t v_pa2 = 0; - uint32_t v_pa3 = 0; - uint32_t v_pb0 = 0; - uint32_t v_pb1 = 0; - uint32_t v_pb2 = 0; - uint32_t v_pb3 = 0; - uint32_t v_pc0 = 0; - uint32_t v_pc1 = 0; - uint32_t v_pc2 = 0; - uint32_t v_pc3 = 0; +static wuffs_base__status +wuffs_qoi__decoder__do_decode_frame( + wuffs_qoi__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + wuffs_base__status status = wuffs_base__make_status(NULL); - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - wuffs_base__slice_u8 i_slice_prev = a_prev; - v_prev.ptr = i_slice_prev.ptr; - i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end0_curr) { - v_fb0 = ((uint32_t)(v_prev.ptr[0u])); - v_pp0 = ((uint32_t)(((uint32_t)(v_fa0 + v_fb0)) - v_fc0)); - v_pa0 = ((uint32_t)(v_pp0 - v_fa0)); - if (v_pa0 >= 2147483648u) { - v_pa0 = ((uint32_t)(0u - v_pa0)); - } - v_pb0 = ((uint32_t)(v_pp0 - v_fb0)); - if (v_pb0 >= 2147483648u) { - v_pb0 = ((uint32_t)(0u - v_pb0)); - } - v_pc0 = ((uint32_t)(v_pp0 - v_fc0)); - if (v_pc0 >= 2147483648u) { - v_pc0 = ((uint32_t)(0u - v_pc0)); - } - if ((v_pa0 <= v_pb0) && (v_pa0 <= v_pc0)) { - } else if (v_pb0 <= v_pc0) { - v_fa0 = v_fb0; - } else { - v_fa0 = v_fc0; - } - v_curr.ptr[0u] = ((uint8_t)(v_curr.ptr[0u] + ((uint8_t)(v_fa0)))); - v_fa0 = ((uint32_t)(v_curr.ptr[0u])); - v_fc0 = v_fb0; - v_fb1 = ((uint32_t)(v_prev.ptr[1u])); - v_pp1 = ((uint32_t)(((uint32_t)(v_fa1 + v_fb1)) - v_fc1)); - v_pa1 = ((uint32_t)(v_pp1 - v_fa1)); - if (v_pa1 >= 2147483648u) { - v_pa1 = ((uint32_t)(0u - v_pa1)); - } - v_pb1 = ((uint32_t)(v_pp1 - v_fb1)); - if (v_pb1 >= 2147483648u) { - v_pb1 = ((uint32_t)(0u - v_pb1)); - } - v_pc1 = ((uint32_t)(v_pp1 - v_fc1)); - if (v_pc1 >= 2147483648u) { - v_pc1 = ((uint32_t)(0u - v_pc1)); + wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint64_t v_c64 = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence == 64u) { + } else if (self->private_impl.f_call_sequence < 64u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - if ((v_pa1 <= v_pb1) && (v_pa1 <= v_pc1)) { - } else if (v_pb1 <= v_pc1) { - v_fa1 = v_fb1; - } else { - v_fa1 = v_fc1; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_qoi__decoder__do_decode_frame_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; } - v_curr.ptr[1u] = ((uint8_t)(v_curr.ptr[1u] + ((uint8_t)(v_fa1)))); - v_fa1 = ((uint32_t)(v_curr.ptr[1u])); - v_fc1 = v_fb1; - v_fb2 = ((uint32_t)(v_prev.ptr[2u])); - v_pp2 = ((uint32_t)(((uint32_t)(v_fa2 + v_fb2)) - v_fc2)); - v_pa2 = ((uint32_t)(v_pp2 - v_fa2)); - if (v_pa2 >= 2147483648u) { - v_pa2 = ((uint32_t)(0u - v_pa2)); + if (status.repr) { + goto suspend; } - v_pb2 = ((uint32_t)(v_pp2 - v_fb2)); - if (v_pb2 >= 2147483648u) { - v_pb2 = ((uint32_t)(0u - v_pb2)); + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, + wuffs_base__pixel_buffer__pixel_format(a_dst), + wuffs_base__pixel_buffer__palette(a_dst), + wuffs_base__utility__make_pixel_format(self->private_impl.f_pixfmt), + wuffs_base__utility__empty_slice_u8(), + a_blend); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; } - v_pc2 = ((uint32_t)(v_pp2 - v_fc2)); - if (v_pc2 >= 2147483648u) { - v_pc2 = ((uint32_t)(0u - v_pc2)); + goto ok; + } + self->private_impl.f_dst_x = 0u; + self->private_impl.f_dst_y = 0u; + self->private_data.f_pixel[0u] = 0u; + self->private_data.f_pixel[1u] = 0u; + self->private_data.f_pixel[2u] = 0u; + self->private_data.f_pixel[3u] = 255u; + wuffs_private_impl__bulk_memset(&self->private_data.f_cache[0], 256u, 0u); + self->private_impl.f_remaining_pixels_times_4 = (((uint64_t)(self->private_impl.f_width)) * ((uint64_t)(self->private_impl.f_height)) * 4u); + while (self->private_impl.f_remaining_pixels_times_4 > 0u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - if ((v_pa2 <= v_pb2) && (v_pa2 <= v_pc2)) { - } else if (v_pb2 <= v_pc2) { - v_fa2 = v_fb2; - } else { - v_fa2 = v_fc2; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + status = wuffs_qoi__decoder__from_src_to_buffer(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; } - v_curr.ptr[2u] = ((uint8_t)(v_curr.ptr[2u] + ((uint8_t)(v_fa2)))); - v_fa2 = ((uint32_t)(v_curr.ptr[2u])); - v_fc2 = v_fb2; - v_fb3 = ((uint32_t)(v_prev.ptr[3u])); - v_pp3 = ((uint32_t)(((uint32_t)(v_fa3 + v_fb3)) - v_fc3)); - v_pa3 = ((uint32_t)(v_pp3 - v_fa3)); - if (v_pa3 >= 2147483648u) { - v_pa3 = ((uint32_t)(0u - v_pa3)); + if (status.repr) { + goto suspend; } - v_pb3 = ((uint32_t)(v_pp3 - v_fb3)); - if (v_pb3 >= 2147483648u) { - v_pb3 = ((uint32_t)(0u - v_pb3)); + if (self->private_impl.f_remaining_pixels_times_4 < ((uint64_t)(self->private_impl.f_buffer_index))) { + status = wuffs_base__make_status(wuffs_base__error__too_much_data); + goto exit; } - v_pc3 = ((uint32_t)(v_pp3 - v_fc3)); - if (v_pc3 >= 2147483648u) { - v_pc3 = ((uint32_t)(0u - v_pc3)); + self->private_impl.f_remaining_pixels_times_4 -= ((uint64_t)(self->private_impl.f_buffer_index)); + v_status = wuffs_qoi__decoder__from_buffer_to_dst(self, a_dst); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; } - if ((v_pa3 <= v_pb3) && (v_pa3 <= v_pc3)) { - } else if (v_pb3 <= v_pc3) { - v_fa3 = v_fb3; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint64_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_0 = wuffs_base__peek_u64be__no_bounds_check(iop_a_src); + iop_a_src += 8; } else { - v_fa3 = v_fc3; + self->private_data.s_do_decode_frame.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_frame.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + if (num_bits_0 == 56) { + t_0 = ((uint64_t)(*scratch >> 0)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)); + } } - v_curr.ptr[3u] = ((uint8_t)(v_curr.ptr[3u] + ((uint8_t)(v_fa3)))); - v_fa3 = ((uint32_t)(v_curr.ptr[3u])); - v_fc3 = v_fb3; - v_curr.ptr += 4; - v_prev.ptr += 4; + v_c64 = t_0; } - v_curr.len = 0; - v_prev.len = 0; + if (v_c64 != 1u) { + status = wuffs_base__make_status(wuffs_qoi__error__bad_footer); + goto exit; + } + self->private_impl.f_call_sequence = 96u; + + ok: + self->private_impl.p_do_decode_frame = 0; + goto exit; } - return wuffs_base__make_empty_struct(); + + goto suspend; + suspend: + self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; } -// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 -// -------- func png.decoder.filter_1_distance_4_x86_sse42 +// -------- func qoi.decoder.from_src_to_buffer -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_1_distance_4_x86_sse42( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr) { - wuffs_base__slice_u8 v_curr = {0}; - __m128i v_x128 = {0}; - __m128i v_a128 = {0}; +static wuffs_base__status +wuffs_qoi__decoder__from_src_to_buffer( + wuffs_qoi__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - v_curr.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8); - while (v_curr.ptr < i_end0_curr) { - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_add_epi8(v_x128, v_a128); - v_a128 = v_x128; - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_add_epi8(v_x128, v_a128); - v_a128 = v_x128; - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; - } - v_curr.len = 4; - uint8_t* i_end1_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end1_curr) { - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_add_epi8(v_x128, v_a128); - v_a128 = v_x128; - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; + uint8_t v_c8 = 0; + uint8_t v_dg = 0; + uint32_t v_bi = 0; + uint32_t v_bj = 0; + uint32_t v_bk = 0; + uint32_t v_ci = 0; + uint32_t v_hash4 = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_from_src_to_buffer; + if (coro_susp_point) { + v_dg = self->private_data.s_from_src_to_buffer.v_dg; + v_bi = self->private_data.s_from_src_to_buffer.v_bi; + v_bk = self->private_data.s_from_src_to_buffer.v_bk; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + v_bk = 7936u; + if (self->private_impl.f_remaining_pixels_times_4 < 7936u) { + v_bk = ((uint32_t)(self->private_impl.f_remaining_pixels_times_4)); } - v_curr.len = 0; + while (v_bi < v_bk) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + if (v_c8 == 254u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + self->private_data.f_pixel[2u] = t_1; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + self->private_data.f_pixel[1u] = t_2; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + self->private_data.f_pixel[0u] = t_3; + } + } else if (v_c8 == 255u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_4 = *iop_a_src++; + self->private_data.f_pixel[2u] = t_4; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_5 = *iop_a_src++; + self->private_data.f_pixel[1u] = t_5; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_6 = *iop_a_src++; + self->private_data.f_pixel[0u] = t_6; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_7 = *iop_a_src++; + self->private_data.f_pixel[3u] = t_7; + } + } else if (((uint8_t)(v_c8 >> 6u)) == 0u) { + v_ci = (4u * ((uint32_t)(((uint8_t)(v_c8 & 63u))))); + self->private_data.f_pixel[0u] = self->private_data.f_cache[(v_ci + 0u)]; + self->private_data.f_pixel[1u] = self->private_data.f_cache[(v_ci + 1u)]; + self->private_data.f_pixel[2u] = self->private_data.f_cache[(v_ci + 2u)]; + self->private_data.f_pixel[3u] = self->private_data.f_cache[(v_ci + 3u)]; + self->private_data.f_buffer[(v_bi + 0u)] = self->private_data.f_pixel[0u]; + self->private_data.f_buffer[(v_bi + 1u)] = self->private_data.f_pixel[1u]; + self->private_data.f_buffer[(v_bi + 2u)] = self->private_data.f_pixel[2u]; + self->private_data.f_buffer[(v_bi + 3u)] = self->private_data.f_pixel[3u]; + v_bi += 4u; + continue; + } else if (((uint8_t)(v_c8 >> 6u)) == 1u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_data.f_pixel[2u] += ((uint8_t)(((uint8_t)(((uint8_t)(v_c8 >> 4u)) & 3u)) + 254u)); + self->private_data.f_pixel[1u] += ((uint8_t)(((uint8_t)(((uint8_t)(v_c8 >> 2u)) & 3u)) + 254u)); + self->private_data.f_pixel[0u] += ((uint8_t)(((uint8_t)(((uint8_t)(v_c8 >> 0u)) & 3u)) + 254u)); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (((uint8_t)(v_c8 >> 6u)) == 2u) { + v_dg = ((uint8_t)(((uint8_t)(v_c8 & 63u)) + 224u)); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_8 = *iop_a_src++; + v_c8 = t_8; + } +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_data.f_pixel[2u] += ((uint8_t)(((uint8_t)(v_dg + 248u)) + ((uint8_t)(15u & ((uint8_t)(v_c8 >> 4u)))))); + self->private_data.f_pixel[1u] += v_dg; + self->private_data.f_pixel[0u] += ((uint8_t)(((uint8_t)(v_dg + 248u)) + ((uint8_t)(15u & ((uint8_t)(v_c8 >> 0u)))))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + v_bj = (v_bi + (4u * (63u & (1u + ((uint32_t)(v_c8)))))); + while (v_bi < v_bj) { + self->private_data.f_buffer[(v_bi + 0u)] = self->private_data.f_pixel[0u]; + self->private_data.f_buffer[(v_bi + 1u)] = self->private_data.f_pixel[1u]; + self->private_data.f_buffer[(v_bi + 2u)] = self->private_data.f_pixel[2u]; + self->private_data.f_buffer[(v_bi + 3u)] = self->private_data.f_pixel[3u]; + v_bi += 4u; + } + continue; + } + v_hash4 = (4u * (63u & ((((uint32_t)(self->private_data.f_pixel[2u])) * 3u) + + (((uint32_t)(self->private_data.f_pixel[1u])) * 5u) + + (((uint32_t)(self->private_data.f_pixel[0u])) * 7u) + + (((uint32_t)(self->private_data.f_pixel[3u])) * 11u)))); + self->private_data.f_cache[(v_hash4 + 0u)] = self->private_data.f_pixel[0u]; + self->private_data.f_cache[(v_hash4 + 1u)] = self->private_data.f_pixel[1u]; + self->private_data.f_cache[(v_hash4 + 2u)] = self->private_data.f_pixel[2u]; + self->private_data.f_cache[(v_hash4 + 3u)] = self->private_data.f_pixel[3u]; + self->private_data.f_buffer[(v_bi + 0u)] = self->private_data.f_pixel[0u]; + self->private_data.f_buffer[(v_bi + 1u)] = self->private_data.f_pixel[1u]; + self->private_data.f_buffer[(v_bi + 2u)] = self->private_data.f_pixel[2u]; + self->private_data.f_buffer[(v_bi + 3u)] = self->private_data.f_pixel[3u]; + v_bi += 4u; + } + self->private_impl.f_buffer_index = v_bi; + + goto ok; + ok: + self->private_impl.p_from_src_to_buffer = 0; + goto exit; } - return wuffs_base__make_empty_struct(); + + goto suspend; + suspend: + self->private_impl.p_from_src_to_buffer = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_from_src_to_buffer.v_dg = v_dg; + self->private_data.s_from_src_to_buffer.v_bi = v_bi; + self->private_data.s_from_src_to_buffer.v_bk = v_bk; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; } -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 -// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 -// -------- func png.decoder.filter_3_distance_4_x86_sse42 +// -------- func qoi.decoder.from_buffer_to_dst -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_3_distance_4_x86_sse42( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - wuffs_base__slice_u8 v_curr = {0}; - wuffs_base__slice_u8 v_prev = {0}; - __m128i v_x128 = {0}; - __m128i v_a128 = {0}; - __m128i v_b128 = {0}; - __m128i v_p128 = {0}; - __m128i v_k128 = {0}; +static wuffs_base__status +wuffs_qoi__decoder__from_buffer_to_dst( + wuffs_qoi__decoder* self, + wuffs_base__pixel_buffer* a_dst) { + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint32_t v_dst_bytes_per_pixel = 0; + uint64_t v_dst_bytes_per_row = 0; + wuffs_base__table_u8 v_tab = {0}; + uint32_t v_bi = 0; + uint32_t v_rem_x = 0; + wuffs_base__slice_u8 v_dst = {0}; + wuffs_base__slice_u8 v_src = {0}; + uint32_t v_src_length = 0; + uint64_t v_i = 0; - if (((uint64_t)(a_prev.len)) == 0u) { - v_k128 = _mm_set1_epi8((int8_t)(254u)); - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - v_curr.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8); - while (v_curr.ptr < i_end0_curr) { - v_p128 = _mm_avg_epu8(_mm_and_si128(v_a128, v_k128), v_b128); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; - v_p128 = _mm_avg_epu8(_mm_and_si128(v_a128, v_k128), v_b128); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; - } - v_curr.len = 4; - uint8_t* i_end1_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end1_curr) { - v_p128 = _mm_avg_epu8(_mm_and_si128(v_a128, v_k128), v_b128); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + return wuffs_base__make_status(wuffs_base__error__unsupported_option); + } + v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); + v_dst_bytes_per_row = ((uint64_t)((self->private_impl.f_width * v_dst_bytes_per_pixel))); + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + while (v_bi < self->private_impl.f_buffer_index) { + if (self->private_impl.f_width <= self->private_impl.f_dst_x) { + self->private_impl.f_dst_x = 0u; + self->private_impl.f_dst_y += 1u; + if (self->private_impl.f_dst_y >= self->private_impl.f_height) { + break; } - v_curr.len = 0; + v_rem_x = self->private_impl.f_width; + } else { + v_rem_x = (self->private_impl.f_width - self->private_impl.f_dst_x); } - } else { - v_k128 = _mm_set1_epi8((int8_t)(1u)); - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - wuffs_base__slice_u8 i_slice_prev = a_prev; - v_prev.ptr = i_slice_prev.ptr; - i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8); - while (v_curr.ptr < i_end0_curr) { - v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_p128 = _mm_avg_epu8(v_a128, v_b128); - v_p128 = _mm_sub_epi8(v_p128, _mm_and_si128(v_k128, _mm_xor_si128(v_a128, v_b128))); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; - v_prev.ptr += 4; - v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_p128 = _mm_avg_epu8(v_a128, v_b128); - v_p128 = _mm_sub_epi8(v_p128, _mm_and_si128(v_k128, _mm_xor_si128(v_a128, v_b128))); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; - v_prev.ptr += 4; - } - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end1_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end1_curr) { - v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_p128 = _mm_avg_epu8(v_a128, v_b128); - v_p128 = _mm_sub_epi8(v_p128, _mm_and_si128(v_k128, _mm_xor_si128(v_a128, v_b128))); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; - v_prev.ptr += 4; - } - v_curr.len = 0; - v_prev.len = 0; + v_src = wuffs_base__make_slice_u8_ij(self->private_data.f_buffer, v_bi, self->private_impl.f_buffer_index); + if (((uint64_t)((4u * v_rem_x))) < ((uint64_t)(v_src.len))) { + v_src = wuffs_base__slice_u8__subslice_j(v_src, ((uint64_t)((4u * v_rem_x)))); + } + v_src_length = ((uint32_t)(((uint64_t)(v_src.len)))); + v_bi += v_src_length; + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, self->private_impl.f_dst_y); + if (v_dst_bytes_per_row < ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row); + } + v_i = (((uint64_t)(self->private_impl.f_dst_x)) * ((uint64_t)(v_dst_bytes_per_pixel))); + self->private_impl.f_dst_x += (v_src_length / 4u); + if (v_i < ((uint64_t)(v_dst.len))) { + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), wuffs_base__pixel_buffer__palette(a_dst), v_src); } } - return wuffs_base__make_empty_struct(); + return wuffs_base__make_status(NULL); } -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 -// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 -// -------- func png.decoder.filter_4_distance_3_x86_sse42 +// -------- func qoi.decoder.frame_dirty_rect -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_3_x86_sse42( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - wuffs_base__slice_u8 v_curr = {0}; - wuffs_base__slice_u8 v_prev = {0}; - __m128i v_x128 = {0}; - __m128i v_a128 = {0}; - __m128i v_b128 = {0}; - __m128i v_c128 = {0}; - __m128i v_p128 = {0}; - __m128i v_pa128 = {0}; - __m128i v_pb128 = {0}; - __m128i v_pc128 = {0}; - __m128i v_smallest128 = {0}; - __m128i v_z128 = {0}; +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_qoi__decoder__frame_dirty_rect( + const wuffs_qoi__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_rect_ie_u32(); + } - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - wuffs_base__slice_u8 i_slice_prev = a_prev; - v_prev.ptr = i_slice_prev.ptr; - i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + wuffs_private_impl__iterate_total_advance((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)), 7, 6); - while (v_curr.ptr < i_end0_curr) { - v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); - v_pa128 = _mm_sub_epi16(v_b128, v_c128); - v_pb128 = _mm_sub_epi16(v_a128, v_c128); - v_pc128 = _mm_add_epi16(v_pa128, v_pb128); - v_pa128 = _mm_abs_epi16(v_pa128); - v_pb128 = _mm_abs_epi16(v_pb128); - v_pc128 = _mm_abs_epi16(v_pc128); - v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); - v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - v_c128 = v_b128; - v_x128 = _mm_packus_epi16(v_x128, v_x128); - wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 3; - v_prev.ptr += 3; - v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); - v_pa128 = _mm_sub_epi16(v_b128, v_c128); - v_pb128 = _mm_sub_epi16(v_a128, v_c128); - v_pc128 = _mm_add_epi16(v_pa128, v_pb128); - v_pa128 = _mm_abs_epi16(v_pa128); - v_pb128 = _mm_abs_epi16(v_pb128); - v_pc128 = _mm_abs_epi16(v_pc128); - v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); - v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - v_c128 = v_b128; - v_x128 = _mm_packus_epi16(v_x128, v_x128); - wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 3; - v_prev.ptr += 3; - } - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end1_curr = v_curr.ptr + wuffs_private_impl__iterate_total_advance((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)), 4, 3); - while (v_curr.ptr < i_end1_curr) { - v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); - v_pa128 = _mm_sub_epi16(v_b128, v_c128); - v_pb128 = _mm_sub_epi16(v_a128, v_c128); - v_pc128 = _mm_add_epi16(v_pa128, v_pb128); - v_pa128 = _mm_abs_epi16(v_pa128); - v_pb128 = _mm_abs_epi16(v_pb128); - v_pc128 = _mm_abs_epi16(v_pc128); - v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); - v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - v_c128 = v_b128; - v_x128 = _mm_packus_epi16(v_x128, v_x128); - wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 3; - v_prev.ptr += 3; - } - v_curr.len = 3; - v_prev.len = 3; - uint8_t* i_end2_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 3) * 3); - while (v_curr.ptr < i_end2_curr) { - v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u24le__no_bounds_check(v_prev.ptr))); - v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); - v_pa128 = _mm_sub_epi16(v_b128, v_c128); - v_pb128 = _mm_sub_epi16(v_a128, v_c128); - v_pc128 = _mm_add_epi16(v_pa128, v_pb128); - v_pa128 = _mm_abs_epi16(v_pa128); - v_pb128 = _mm_abs_epi16(v_pb128); - v_pc128 = _mm_abs_epi16(v_pc128); - v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); - v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u24le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_x128 = _mm_packus_epi16(v_x128, v_x128); - wuffs_base__poke_u24le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 3; - v_prev.ptr += 3; - } - v_curr.len = 0; - v_prev.len = 0; + return wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height); +} + +// -------- func qoi.decoder.num_animation_loops + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_qoi__decoder__num_animation_loops( + const wuffs_qoi__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - return wuffs_base__make_empty_struct(); + + return 0u; } -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 -// ‼ WUFFS MULTI-FILE SECTION +x86_sse42 -// -------- func png.decoder.filter_4_distance_4_x86_sse42 +// -------- func qoi.decoder.num_decoded_frame_configs -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -WUFFS_BASE__MAYBE_ATTRIBUTE_TARGET("pclmul,popcnt,sse4.2") WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__filter_4_distance_4_x86_sse42( - wuffs_png__decoder* self, - wuffs_base__slice_u8 a_curr, - wuffs_base__slice_u8 a_prev) { - wuffs_base__slice_u8 v_curr = {0}; - wuffs_base__slice_u8 v_prev = {0}; - __m128i v_x128 = {0}; - __m128i v_a128 = {0}; - __m128i v_b128 = {0}; - __m128i v_c128 = {0}; - __m128i v_p128 = {0}; - __m128i v_pa128 = {0}; - __m128i v_pb128 = {0}; - __m128i v_pc128 = {0}; - __m128i v_smallest128 = {0}; - __m128i v_z128 = {0}; +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_qoi__decoder__num_decoded_frame_configs( + const wuffs_qoi__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } - { - wuffs_base__slice_u8 i_slice_curr = a_curr; - v_curr.ptr = i_slice_curr.ptr; - wuffs_base__slice_u8 i_slice_prev = a_prev; - v_prev.ptr = i_slice_prev.ptr; - i_slice_curr.len = ((size_t)(wuffs_base__u64__min(i_slice_curr.len, i_slice_prev.len))); - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end0_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 8) * 8); - while (v_curr.ptr < i_end0_curr) { - v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); - v_pa128 = _mm_sub_epi16(v_b128, v_c128); - v_pb128 = _mm_sub_epi16(v_a128, v_c128); - v_pc128 = _mm_add_epi16(v_pa128, v_pb128); - v_pa128 = _mm_abs_epi16(v_pa128); - v_pb128 = _mm_abs_epi16(v_pb128); - v_pc128 = _mm_abs_epi16(v_pc128); - v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); - v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - v_c128 = v_b128; - v_x128 = _mm_packus_epi16(v_x128, v_x128); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; - v_prev.ptr += 4; - v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); - v_pa128 = _mm_sub_epi16(v_b128, v_c128); - v_pb128 = _mm_sub_epi16(v_a128, v_c128); - v_pc128 = _mm_add_epi16(v_pa128, v_pb128); - v_pa128 = _mm_abs_epi16(v_pa128); - v_pb128 = _mm_abs_epi16(v_pb128); - v_pc128 = _mm_abs_epi16(v_pc128); - v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); - v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - v_c128 = v_b128; - v_x128 = _mm_packus_epi16(v_x128, v_x128); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; - v_prev.ptr += 4; - } - v_curr.len = 4; - v_prev.len = 4; - uint8_t* i_end1_curr = v_curr.ptr + (((i_slice_curr.len - (size_t)(v_curr.ptr - i_slice_curr.ptr)) / 4) * 4); - while (v_curr.ptr < i_end1_curr) { - v_b128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_prev.ptr))); - v_b128 = _mm_unpacklo_epi8(v_b128, v_z128); - v_pa128 = _mm_sub_epi16(v_b128, v_c128); - v_pb128 = _mm_sub_epi16(v_a128, v_c128); - v_pc128 = _mm_add_epi16(v_pa128, v_pb128); - v_pa128 = _mm_abs_epi16(v_pa128); - v_pb128 = _mm_abs_epi16(v_pb128); - v_pc128 = _mm_abs_epi16(v_pc128); - v_smallest128 = _mm_min_epi16(v_pc128, _mm_min_epi16(v_pb128, v_pa128)); - v_p128 = _mm_blendv_epi8(_mm_blendv_epi8(v_c128, v_b128, _mm_cmpeq_epi16(v_smallest128, v_pb128)), v_a128, _mm_cmpeq_epi16(v_smallest128, v_pa128)); - v_x128 = _mm_cvtsi32_si128((int32_t)(wuffs_base__peek_u32le__no_bounds_check(v_curr.ptr))); - v_x128 = _mm_unpacklo_epi8(v_x128, v_z128); - v_x128 = _mm_add_epi8(v_x128, v_p128); - v_a128 = v_x128; - v_c128 = v_b128; - v_x128 = _mm_packus_epi16(v_x128, v_x128); - wuffs_base__poke_u32le__no_bounds_check(v_curr.ptr, ((uint32_t)(_mm_cvtsi128_si32(v_x128)))); - v_curr.ptr += 4; - v_prev.ptr += 4; - } - v_curr.len = 0; - v_prev.len = 0; + if (self->private_impl.f_call_sequence > 32u) { + return 1u; } - return wuffs_base__make_empty_struct(); + return 0u; } -#endif // defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) -// ‼ WUFFS MULTI-FILE SECTION -x86_sse42 -// -------- func png.decoder.get_quirk +// -------- func qoi.decoder.num_decoded_frames WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_png__decoder__get_quirk( - const wuffs_png__decoder* self, - uint32_t a_key) { +wuffs_qoi__decoder__num_decoded_frames( + const wuffs_qoi__decoder* self) { if (!self) { return 0; } @@ -58025,20 +72011,20 @@ wuffs_png__decoder__get_quirk( return 0; } - if ((a_key == 1u) && self->private_impl.f_ignore_checksum) { + if (self->private_impl.f_call_sequence > 64u) { return 1u; } return 0u; } -// -------- func png.decoder.set_quirk +// -------- func qoi.decoder.restart_frame WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_png__decoder__set_quirk( - wuffs_png__decoder* self, - uint32_t a_key, - uint64_t a_value) { +wuffs_qoi__decoder__restart_frame( + wuffs_qoi__decoder* self, + uint64_t a_index, + uint64_t a_io_position) { if (!self) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); } @@ -58049,21 +72035,35 @@ wuffs_png__decoder__set_quirk( : wuffs_base__error__initialize_not_called); } - if (a_key == 1u) { - self->private_impl.f_ignore_checksum = (a_value > 0u); - wuffs_zlib__decoder__set_quirk(&self->private_data.f_zlib, a_key, a_value); - return wuffs_base__make_status(NULL); + if (self->private_impl.f_call_sequence < 32u) { + return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); } - return wuffs_base__make_status(wuffs_base__error__unsupported_option); + if ((a_index != 0u) || (a_io_position != 14u)) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + self->private_impl.f_call_sequence = 40u; + return wuffs_base__make_status(NULL); } -// -------- func png.decoder.decode_image_config +// -------- func qoi.decoder.set_report_metadata + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_qoi__decoder__set_report_metadata( + wuffs_qoi__decoder* self, + uint32_t a_fourcc, + bool a_report) { + return wuffs_base__make_empty_struct(); +} + +// -------- func qoi.decoder.tell_me_more WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_png__decoder__decode_image_config( - wuffs_png__decoder* self, - wuffs_base__image_config* a_dst, +wuffs_qoi__decoder__tell_me_more( + wuffs_qoi__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, wuffs_base__io_buffer* a_src) { if (!self) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); @@ -58074,47 +72074,23 @@ wuffs_png__decoder__decode_image_config( ? wuffs_base__error__disabled_by_previous_error : wuffs_base__error__initialize_not_called); } - if (!a_src) { + if (!a_dst || !a_src) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__bad_argument); } if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 1)) { + (self->private_impl.active_coroutine != 4)) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - uint32_t coro_susp_point = self->private_impl.p_decode_image_config; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - while (true) { - { - wuffs_base__status t_0 = wuffs_png__decoder__do_decode_image_config(self, a_dst, a_src); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_png__error__truncated_input); - goto exit; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - } - - ok: - self->private_impl.p_decode_image_config = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + status = wuffs_base__make_status(wuffs_base__error__no_more_information); + goto exit; + goto ok; + ok: goto exit; exit: if (wuffs_base__status__is_error(&status)) { @@ -58123,1037 +72099,896 @@ wuffs_png__decoder__decode_image_config( return status; } -// -------- func png.decoder.do_decode_image_config +// -------- func qoi.decoder.workbuf_len WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__do_decode_image_config( - wuffs_png__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_qoi__decoder__workbuf_len( + const wuffs_qoi__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } - uint64_t v_magic = 0; - uint64_t v_mark = 0; - uint32_t v_checksum_have = 0; - uint32_t v_checksum_want = 0; - wuffs_base__status v_status = wuffs_base__make_status(NULL); + return wuffs_base__utility__make_range_ii_u64(0u, 0u); +} - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__QOI) - uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; - if (coro_susp_point) { - v_checksum_have = self->private_data.s_do_decode_image_config.v_checksum_have; - } - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__SHA256) - if (self->private_impl.f_call_sequence != 0u) { - status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - goto exit; - } else if ( ! self->private_impl.f_seen_ihdr) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint64_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { - t_0 = wuffs_base__peek_u64le__no_bounds_check(iop_a_src); - iop_a_src += 8; - } else { - self->private_data.s_do_decode_image_config.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; - if (num_bits_0 == 56) { - t_0 = ((uint64_t)(*scratch)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)) << 56; - } - } - v_magic = t_0; - } - if (v_magic != 727905341920923785u) { - status = wuffs_base__make_status(wuffs_png__error__bad_header); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint64_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { - t_1 = wuffs_base__peek_u64le__no_bounds_check(iop_a_src); - iop_a_src += 8; - } else { - self->private_data.s_do_decode_image_config.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; - if (num_bits_1 == 56) { - t_1 = ((uint64_t)(*scratch)); - break; - } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)) << 56; - } - } - v_magic = t_1; - } - if (v_magic != 5927942488114331648u) { - if (v_magic == 5278895250759221248u) { - status = wuffs_base__make_status(wuffs_png__error__unsupported_cgbi_extension); - goto exit; - } - status = wuffs_base__make_status(wuffs_png__error__bad_header); - goto exit; - } - self->private_impl.f_chunk_type_array[0u] = 73u; - self->private_impl.f_chunk_type_array[1u] = 72u; - self->private_impl.f_chunk_type_array[2u] = 68u; - self->private_impl.f_chunk_type_array[3u] = 82u; - wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, - sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); - wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__make_slice_u8(self->private_impl.f_chunk_type_array, 4)); - while (true) { - v_mark = ((uint64_t)(iop_a_src - io0_a_src)); - { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - wuffs_base__status t_2 = wuffs_png__decoder__decode_ihdr(self, a_src); - v_status = t_2; - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - } - if ( ! self->private_impl.f_ignore_checksum) { - v_checksum_have = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_private_impl__io__since(v_mark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); - } - if (wuffs_base__status__is_ok(&v_status)) { - break; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - uint32_t t_3; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_3 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_image_config.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; - uint32_t num_bits_3 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_3); - if (num_bits_3 == 24) { - t_3 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_3 += 8u; - *scratch |= ((uint64_t)(num_bits_3)); - } - } - v_checksum_want = t_3; - } - if ( ! self->private_impl.f_ignore_checksum && (v_checksum_have != v_checksum_want)) { - status = wuffs_base__make_status(wuffs_png__error__bad_checksum); - goto exit; - } - self->private_impl.f_seen_ihdr = true; - } else if (self->private_impl.f_metadata_fourcc != 0u) { - self->private_impl.f_call_sequence = 16u; - status = wuffs_base__make_status(wuffs_base__note__metadata_reported); - goto ok; - } - while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 8u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); - continue; - } - self->private_impl.f_chunk_length = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - self->private_impl.f_chunk_type = ((uint32_t)((wuffs_base__peek_u64le__no_bounds_check(iop_a_src) >> 32u))); - if (self->private_impl.f_chunk_type == 1413563465u) { - if ( ! self->private_impl.f_seen_actl || self->private_impl.f_seen_fctl) { - break; - } - self->private_impl.f_seen_idat = true; - } else if (self->private_impl.f_chunk_type == 1413571686u) { - if (self->private_impl.f_seen_idat && self->private_impl.f_seen_fctl) { - break; - } - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - iop_a_src += 8u; - if ( ! self->private_impl.f_ignore_checksum && ((self->private_impl.f_chunk_type & 32u) == 0u)) { - self->private_impl.f_chunk_type_array[0u] = ((uint8_t)((self->private_impl.f_chunk_type >> 0u))); - self->private_impl.f_chunk_type_array[1u] = ((uint8_t)((self->private_impl.f_chunk_type >> 8u))); - self->private_impl.f_chunk_type_array[2u] = ((uint8_t)((self->private_impl.f_chunk_type >> 16u))); - self->private_impl.f_chunk_type_array[3u] = ((uint8_t)((self->private_impl.f_chunk_type >> 24u))); - wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, - sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); - wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__make_slice_u8(self->private_impl.f_chunk_type_array, 4)); - } - while (true) { - v_mark = ((uint64_t)(iop_a_src - io0_a_src)); - { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - wuffs_base__status t_4 = wuffs_png__decoder__decode_other_chunk(self, a_src, false); - v_status = t_4; - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - } - if ( ! self->private_impl.f_ignore_checksum && ((self->private_impl.f_chunk_type & 32u) == 0u)) { - v_checksum_have = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_private_impl__io__since(v_mark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); - } - if (wuffs_base__status__is_ok(&v_status)) { - break; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); - } - if (self->private_impl.f_metadata_fourcc != 0u) { - self->private_impl.f_call_sequence = 16u; - status = wuffs_base__make_status(wuffs_base__note__metadata_reported); - goto ok; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); - uint32_t t_5; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_5 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_image_config.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; - uint32_t num_bits_5 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_5); - if (num_bits_5 == 24) { - t_5 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_5 += 8u; - *scratch |= ((uint64_t)(num_bits_5)); - } - } - v_checksum_want = t_5; - } - if ( ! self->private_impl.f_ignore_checksum && ((self->private_impl.f_chunk_type & 32u) == 0u) && (v_checksum_have != v_checksum_want)) { - status = wuffs_base__make_status(wuffs_png__error__bad_checksum); - goto exit; - } - } - if ((self->private_impl.f_color_type == 3u) && ! self->private_impl.f_seen_plte) { - status = wuffs_base__make_status(wuffs_png__error__missing_palette); - goto exit; - } - self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); - self->private_impl.f_first_config_io_position = self->private_impl.f_frame_config_io_position; - if (a_dst != NULL) { - wuffs_base__image_config__set( - a_dst, - self->private_impl.f_dst_pixfmt, - 0u, - self->private_impl.f_width, - self->private_impl.f_height, - self->private_impl.f_first_config_io_position, - ((self->private_impl.f_color_type <= 3u) && ! self->private_impl.f_seen_trns)); +// ---------------- Status Codes Implementations + +// ---------------- Private Consts + +static const uint32_t +WUFFS_SHA256__INITIAL_SHA256_H[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 1779033703u, 3144134277u, 1013904242u, 2773480762u, 1359893119u, 2600822924u, 528734635u, 1541459225u, +}; + +static const uint32_t +WUFFS_SHA256__K[64] WUFFS_BASE__POTENTIALLY_UNUSED = { + 1116352408u, 1899447441u, 3049323471u, 3921009573u, 961987163u, 1508970993u, 2453635748u, 2870763221u, + 3624381080u, 310598401u, 607225278u, 1426881987u, 1925078388u, 2162078206u, 2614888103u, 3248222580u, + 3835390401u, 4022224774u, 264347078u, 604807628u, 770255983u, 1249150122u, 1555081692u, 1996064986u, + 2554220882u, 2821834349u, 2952996808u, 3210313671u, 3336571891u, 3584528711u, 113926993u, 338241895u, + 666307205u, 773529912u, 1294757372u, 1396182291u, 1695183700u, 1986661051u, 2177026350u, 2456956037u, + 2730485921u, 2820302411u, 3259730800u, 3345764771u, 3516065817u, 3600352804u, 4094571909u, 275423344u, + 430227734u, 506948616u, 659060556u, 883997877u, 958139571u, 1322822218u, 1537002063u, 1747873779u, + 1955562222u, 2024104815u, 2227730452u, 2361852424u, 2428436474u, 2756734187u, 3204031479u, 3329325298u, +}; + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_sha256__hasher__up( + wuffs_sha256__hasher* self, + wuffs_base__slice_u8 a_x); + +// ---------------- VTables + +const wuffs_base__hasher_bitvec256__func_ptrs +wuffs_sha256__hasher__func_ptrs_for__wuffs_base__hasher_bitvec256 = { + (wuffs_base__bitvec256(*)(const void*))(&wuffs_sha256__hasher__checksum_bitvec256), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_sha256__hasher__get_quirk), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_sha256__hasher__set_quirk), + (wuffs_base__empty_struct(*)(void*, + wuffs_base__slice_u8))(&wuffs_sha256__hasher__update), + (wuffs_base__bitvec256(*)(void*, + wuffs_base__slice_u8))(&wuffs_sha256__hasher__update_bitvec256), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_sha256__hasher__initialize( + wuffs_sha256__hasher* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); } - if ( ! self->private_impl.f_seen_actl) { - self->private_impl.f_num_animation_frames_value = 1u; - self->private_impl.f_first_rect_x0 = 0u; - self->private_impl.f_first_rect_y0 = 0u; - self->private_impl.f_first_rect_x1 = self->private_impl.f_width; - self->private_impl.f_first_rect_y1 = self->private_impl.f_height; - self->private_impl.f_first_duration = 0u; - self->private_impl.f_first_disposal = 0u; - self->private_impl.f_first_overwrite_instead_of_blend = false; +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); } - self->private_impl.f_call_sequence = 32u; + } - ok: - self->private_impl.p_do_decode_image_config = 0; - goto exit; + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__hasher_bitvec256.vtable_name = + wuffs_base__hasher_bitvec256__vtable_name; + self->private_impl.vtable_for__wuffs_base__hasher_bitvec256.function_pointers = + (const void*)(&wuffs_sha256__hasher__func_ptrs_for__wuffs_base__hasher_bitvec256); + return wuffs_base__make_status(NULL); +} + +wuffs_sha256__hasher* +wuffs_sha256__hasher__alloc(void) { + wuffs_sha256__hasher* x = + (wuffs_sha256__hasher*)(calloc(1, sizeof(wuffs_sha256__hasher))); + if (!x) { + return NULL; + } + if (wuffs_sha256__hasher__initialize( + x, sizeof(wuffs_sha256__hasher), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; } + return x; +} - goto suspend; - suspend: - self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_do_decode_image_config.v_checksum_have = v_checksum_have; +size_t +sizeof__wuffs_sha256__hasher(void) { + return sizeof(wuffs_sha256__hasher); +} - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); +// ---------------- Function Implementations + +// -------- func sha256.hasher.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_sha256__hasher__get_quirk( + const wuffs_sha256__hasher* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - return status; + return 0u; } -// -------- func png.decoder.decode_ihdr +// -------- func sha256.hasher.set_quirk WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_ihdr( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_sha256__hasher__set_quirk( + wuffs_sha256__hasher* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } - uint32_t v_a32 = 0; - uint8_t v_a8 = 0; + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; +// -------- func sha256.hasher.update + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_sha256__hasher__update( + wuffs_sha256__hasher* self, + wuffs_base__slice_u8 a_x) { + if (!self) { + return wuffs_base__make_empty_struct(); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_empty_struct(); } - uint32_t coro_susp_point = self->private_impl.p_decode_ihdr; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + uint64_t v_new_lmu = 0; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint32_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_ihdr.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_ihdr.scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); - if (num_bits_0 == 24) { - t_0 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); - } - } - v_a32 = t_0; - } - if ((v_a32 == 0u) || (v_a32 > 2147483647u)) { - status = wuffs_base__make_status(wuffs_png__error__bad_header); - goto exit; - } else if (v_a32 > 16777215u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); - goto exit; - } - self->private_impl.f_width = v_a32; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint32_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_1 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_ihdr.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_ihdr.scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); - if (num_bits_1 == 24) { - t_1 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)); - } - } - v_a32 = t_1; - } - if ((v_a32 == 0u) || (v_a32 > 2147483647u)) { - status = wuffs_base__make_status(wuffs_png__error__bad_header); - goto exit; - } else if (v_a32 > 16777215u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); - goto exit; - } - self->private_impl.f_height = v_a32; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_2 = *iop_a_src++; - v_a8 = t_2; - } - if (v_a8 > 16u) { - status = wuffs_base__make_status(wuffs_png__error__bad_header); - goto exit; - } - self->private_impl.f_depth = v_a8; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_3 = *iop_a_src++; - v_a8 = t_3; - } - if ((v_a8 == 1u) || (v_a8 == 5u) || (v_a8 > 6u)) { - status = wuffs_base__make_status(wuffs_png__error__bad_header); - goto exit; - } - self->private_impl.f_color_type = v_a8; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_4 = *iop_a_src++; - v_a8 = t_4; - } - if (v_a8 != 0u) { - status = wuffs_base__make_status(wuffs_png__error__unsupported_png_compression_method); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_5 = *iop_a_src++; - v_a8 = t_5; - } - if (v_a8 != 0u) { - status = wuffs_base__make_status(wuffs_png__error__bad_header); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + if ((self->private_impl.f_length_modulo_u64 == 0u) && ! self->private_impl.f_length_overflows_u64) { + self->private_impl.f_h0 = WUFFS_SHA256__INITIAL_SHA256_H[0u]; + self->private_impl.f_h1 = WUFFS_SHA256__INITIAL_SHA256_H[1u]; + self->private_impl.f_h2 = WUFFS_SHA256__INITIAL_SHA256_H[2u]; + self->private_impl.f_h3 = WUFFS_SHA256__INITIAL_SHA256_H[3u]; + self->private_impl.f_h4 = WUFFS_SHA256__INITIAL_SHA256_H[4u]; + self->private_impl.f_h5 = WUFFS_SHA256__INITIAL_SHA256_H[5u]; + self->private_impl.f_h6 = WUFFS_SHA256__INITIAL_SHA256_H[6u]; + self->private_impl.f_h7 = WUFFS_SHA256__INITIAL_SHA256_H[7u]; + } + v_new_lmu = ((uint64_t)(self->private_impl.f_length_modulo_u64 + ((uint64_t)(a_x.len)))); + self->private_impl.f_length_overflows_u64 = ((v_new_lmu < self->private_impl.f_length_modulo_u64) || self->private_impl.f_length_overflows_u64); + self->private_impl.f_length_modulo_u64 = v_new_lmu; + if (self->private_impl.f_buf_len != 0u) { + while (self->private_impl.f_buf_len < 64u) { + if (((uint64_t)(a_x.len)) <= 0u) { + return wuffs_base__make_empty_struct(); } - uint8_t t_6 = *iop_a_src++; - v_a8 = t_6; - } - if (v_a8 == 0u) { - self->private_impl.f_interlace_pass = 0u; - } else if (v_a8 == 1u) { - self->private_impl.f_interlace_pass = 1u; - self->private_impl.choosy_filter_and_swizzle = ( - &wuffs_png__decoder__filter_and_swizzle_tricky); - } else { - status = wuffs_base__make_status(wuffs_png__error__bad_header); - goto exit; - } - self->private_impl.f_filter_distance = 0u; - wuffs_png__decoder__assign_filter_distance(self); - if (self->private_impl.f_filter_distance == 0u) { - status = wuffs_base__make_status(wuffs_png__error__bad_header); - goto exit; + self->private_impl.f_buf_data[self->private_impl.f_buf_len] = a_x.ptr[0u]; + self->private_impl.f_buf_len += 1u; + a_x = wuffs_base__slice_u8__subslice_i(a_x, 1u); } - self->private_impl.f_overall_workbuf_length = (((uint64_t)(self->private_impl.f_height)) * (1u + wuffs_png__decoder__calculate_bytes_per_row(self, self->private_impl.f_width))); - wuffs_png__decoder__choose_filter_implementations(self); - - goto ok; - ok: - self->private_impl.p_decode_ihdr = 0; - goto exit; + self->private_impl.f_buf_len = 0u; + wuffs_sha256__hasher__up(self, wuffs_base__make_slice_u8(self->private_impl.f_buf_data, 64)); } + wuffs_sha256__hasher__up(self, a_x); + return wuffs_base__make_empty_struct(); +} - goto suspend; - suspend: - self->private_impl.p_decode_ihdr = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; +// -------- func sha256.hasher.update_bitvec256 - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__bitvec256 +wuffs_sha256__hasher__update_bitvec256( + wuffs_sha256__hasher* self, + wuffs_base__slice_u8 a_x) { + if (!self) { + return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); } - return status; + wuffs_sha256__hasher__update(self, a_x); + return wuffs_sha256__hasher__checksum_bitvec256(self); } -// -------- func png.decoder.assign_filter_distance +// -------- func sha256.hasher.up WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct -wuffs_png__decoder__assign_filter_distance( - wuffs_png__decoder* self) { - if (self->private_impl.f_depth < 8u) { - if ((self->private_impl.f_depth != 1u) && (self->private_impl.f_depth != 2u) && (self->private_impl.f_depth != 4u)) { - return wuffs_base__make_empty_struct(); - } else if (self->private_impl.f_color_type == 0u) { - self->private_impl.f_dst_pixfmt = 536870920u; - self->private_impl.f_src_pixfmt = 536870920u; - } else if (self->private_impl.f_color_type == 3u) { - self->private_impl.f_dst_pixfmt = 2198077448u; - self->private_impl.f_src_pixfmt = 2198077448u; - } else { - return wuffs_base__make_empty_struct(); - } - self->private_impl.f_filter_distance = 1u; - self->private_impl.choosy_filter_and_swizzle = ( - &wuffs_png__decoder__filter_and_swizzle_tricky); - } else if (self->private_impl.f_color_type == 0u) { - if (self->private_impl.f_depth == 8u) { - self->private_impl.f_dst_pixfmt = 536870920u; - self->private_impl.f_src_pixfmt = 536870920u; - self->private_impl.f_filter_distance = 1u; - } else if (self->private_impl.f_depth == 16u) { - if (self->private_impl.f_interlace_pass == 0u) { - self->private_impl.f_dst_pixfmt = 536870923u; - self->private_impl.f_src_pixfmt = 537919499u; - } else { - self->private_impl.f_dst_pixfmt = 2164308923u; - self->private_impl.f_src_pixfmt = 2164308923u; +wuffs_sha256__hasher__up( + wuffs_sha256__hasher* self, + wuffs_base__slice_u8 a_x) { + wuffs_base__slice_u8 v_p = {0}; + uint32_t v_w[64] = {0}; + uint32_t v_w2 = 0; + uint32_t v_w15 = 0; + uint32_t v_s0 = 0; + uint32_t v_s1 = 0; + uint32_t v_t1 = 0; + uint32_t v_t2 = 0; + uint32_t v_a = 0; + uint32_t v_b = 0; + uint32_t v_c = 0; + uint32_t v_d = 0; + uint32_t v_e = 0; + uint32_t v_f = 0; + uint32_t v_g = 0; + uint32_t v_h = 0; + uint32_t v_i = 0; + uint32_t v_buf_len = 0; + + v_a = self->private_impl.f_h0; + v_b = self->private_impl.f_h1; + v_c = self->private_impl.f_h2; + v_d = self->private_impl.f_h3; + v_e = self->private_impl.f_h4; + v_f = self->private_impl.f_h5; + v_g = self->private_impl.f_h6; + v_h = self->private_impl.f_h7; + { + wuffs_base__slice_u8 i_slice_p = a_x; + v_p.ptr = i_slice_p.ptr; + v_p.len = 64; + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 64) * 64)); + while (v_p.ptr < i_end0_p) { + v_w[0u] = ((((uint32_t)(v_p.ptr[0u])) << 24u) | + (((uint32_t)(v_p.ptr[1u])) << 16u) | + (((uint32_t)(v_p.ptr[2u])) << 8u) | + ((uint32_t)(v_p.ptr[3u]))); + v_w[1u] = ((((uint32_t)(v_p.ptr[4u])) << 24u) | + (((uint32_t)(v_p.ptr[5u])) << 16u) | + (((uint32_t)(v_p.ptr[6u])) << 8u) | + ((uint32_t)(v_p.ptr[7u]))); + v_w[2u] = ((((uint32_t)(v_p.ptr[8u])) << 24u) | + (((uint32_t)(v_p.ptr[9u])) << 16u) | + (((uint32_t)(v_p.ptr[10u])) << 8u) | + ((uint32_t)(v_p.ptr[11u]))); + v_w[3u] = ((((uint32_t)(v_p.ptr[12u])) << 24u) | + (((uint32_t)(v_p.ptr[13u])) << 16u) | + (((uint32_t)(v_p.ptr[14u])) << 8u) | + ((uint32_t)(v_p.ptr[15u]))); + v_w[4u] = ((((uint32_t)(v_p.ptr[16u])) << 24u) | + (((uint32_t)(v_p.ptr[17u])) << 16u) | + (((uint32_t)(v_p.ptr[18u])) << 8u) | + ((uint32_t)(v_p.ptr[19u]))); + v_w[5u] = ((((uint32_t)(v_p.ptr[20u])) << 24u) | + (((uint32_t)(v_p.ptr[21u])) << 16u) | + (((uint32_t)(v_p.ptr[22u])) << 8u) | + ((uint32_t)(v_p.ptr[23u]))); + v_w[6u] = ((((uint32_t)(v_p.ptr[24u])) << 24u) | + (((uint32_t)(v_p.ptr[25u])) << 16u) | + (((uint32_t)(v_p.ptr[26u])) << 8u) | + ((uint32_t)(v_p.ptr[27u]))); + v_w[7u] = ((((uint32_t)(v_p.ptr[28u])) << 24u) | + (((uint32_t)(v_p.ptr[29u])) << 16u) | + (((uint32_t)(v_p.ptr[30u])) << 8u) | + ((uint32_t)(v_p.ptr[31u]))); + v_w[8u] = ((((uint32_t)(v_p.ptr[32u])) << 24u) | + (((uint32_t)(v_p.ptr[33u])) << 16u) | + (((uint32_t)(v_p.ptr[34u])) << 8u) | + ((uint32_t)(v_p.ptr[35u]))); + v_w[9u] = ((((uint32_t)(v_p.ptr[36u])) << 24u) | + (((uint32_t)(v_p.ptr[37u])) << 16u) | + (((uint32_t)(v_p.ptr[38u])) << 8u) | + ((uint32_t)(v_p.ptr[39u]))); + v_w[10u] = ((((uint32_t)(v_p.ptr[40u])) << 24u) | + (((uint32_t)(v_p.ptr[41u])) << 16u) | + (((uint32_t)(v_p.ptr[42u])) << 8u) | + ((uint32_t)(v_p.ptr[43u]))); + v_w[11u] = ((((uint32_t)(v_p.ptr[44u])) << 24u) | + (((uint32_t)(v_p.ptr[45u])) << 16u) | + (((uint32_t)(v_p.ptr[46u])) << 8u) | + ((uint32_t)(v_p.ptr[47u]))); + v_w[12u] = ((((uint32_t)(v_p.ptr[48u])) << 24u) | + (((uint32_t)(v_p.ptr[49u])) << 16u) | + (((uint32_t)(v_p.ptr[50u])) << 8u) | + ((uint32_t)(v_p.ptr[51u]))); + v_w[13u] = ((((uint32_t)(v_p.ptr[52u])) << 24u) | + (((uint32_t)(v_p.ptr[53u])) << 16u) | + (((uint32_t)(v_p.ptr[54u])) << 8u) | + ((uint32_t)(v_p.ptr[55u]))); + v_w[14u] = ((((uint32_t)(v_p.ptr[56u])) << 24u) | + (((uint32_t)(v_p.ptr[57u])) << 16u) | + (((uint32_t)(v_p.ptr[58u])) << 8u) | + ((uint32_t)(v_p.ptr[59u]))); + v_w[15u] = ((((uint32_t)(v_p.ptr[60u])) << 24u) | + (((uint32_t)(v_p.ptr[61u])) << 16u) | + (((uint32_t)(v_p.ptr[62u])) << 8u) | + ((uint32_t)(v_p.ptr[63u]))); + v_i = 16u; + while (v_i < 64u) { + v_w2 = v_w[(v_i - 2u)]; + v_s1 = ((v_w2 >> 10u) ^ (((uint32_t)(v_w2 << 15u)) | (v_w2 >> 17u)) ^ (((uint32_t)(v_w2 << 13u)) | (v_w2 >> 19u))); + v_w15 = v_w[(v_i - 15u)]; + v_s0 = ((v_w15 >> 3u) ^ (((uint32_t)(v_w15 << 25u)) | (v_w15 >> 7u)) ^ (((uint32_t)(v_w15 << 14u)) | (v_w15 >> 18u))); + v_w[v_i] = ((uint32_t)(((uint32_t)(((uint32_t)(v_s1 + v_w[(v_i - 7u)])) + v_s0)) + v_w[(v_i - 16u)])); + v_i += 1u; + } + v_i = 0u; + while (v_i < 64u) { + v_t1 = v_h; + v_t1 += ((((uint32_t)(v_e << 26u)) | (v_e >> 6u)) ^ (((uint32_t)(v_e << 21u)) | (v_e >> 11u)) ^ (((uint32_t)(v_e << 7u)) | (v_e >> 25u))); + v_t1 += ((v_e & v_f) ^ ((4294967295u ^ v_e) & v_g)); + v_t1 += WUFFS_SHA256__K[v_i]; + v_t1 += v_w[v_i]; + v_t2 = ((((uint32_t)(v_a << 30u)) | (v_a >> 2u)) ^ (((uint32_t)(v_a << 19u)) | (v_a >> 13u)) ^ (((uint32_t)(v_a << 10u)) | (v_a >> 22u))); + v_t2 += ((v_a & v_b) ^ (v_a & v_c) ^ (v_b & v_c)); + v_h = v_g; + v_g = v_f; + v_f = v_e; + v_e = ((uint32_t)(v_d + v_t1)); + v_d = v_c; + v_c = v_b; + v_b = v_a; + v_a = ((uint32_t)(v_t1 + v_t2)); + v_i += 1u; } - self->private_impl.f_filter_distance = 2u; - } - } else if (self->private_impl.f_color_type == 2u) { - if (self->private_impl.f_depth == 8u) { - self->private_impl.f_dst_pixfmt = 2147485832u; - self->private_impl.f_src_pixfmt = 2684356744u; - self->private_impl.f_filter_distance = 3u; - } else if (self->private_impl.f_depth == 16u) { - self->private_impl.f_dst_pixfmt = 2164308923u; - self->private_impl.f_src_pixfmt = 2164308923u; - self->private_impl.f_filter_distance = 6u; - self->private_impl.choosy_filter_and_swizzle = ( - &wuffs_png__decoder__filter_and_swizzle_tricky); - } - } else if (self->private_impl.f_color_type == 3u) { - if (self->private_impl.f_depth == 8u) { - self->private_impl.f_dst_pixfmt = 2198077448u; - self->private_impl.f_src_pixfmt = 2198077448u; - self->private_impl.f_filter_distance = 1u; - } - } else if (self->private_impl.f_color_type == 4u) { - if (self->private_impl.f_depth == 8u) { - self->private_impl.f_dst_pixfmt = 2164295816u; - self->private_impl.f_src_pixfmt = 2164295816u; - self->private_impl.f_filter_distance = 2u; - self->private_impl.choosy_filter_and_swizzle = ( - &wuffs_png__decoder__filter_and_swizzle_tricky); - } else if (self->private_impl.f_depth == 16u) { - self->private_impl.f_dst_pixfmt = 2164308923u; - self->private_impl.f_src_pixfmt = 2164308923u; - self->private_impl.f_filter_distance = 4u; - self->private_impl.choosy_filter_and_swizzle = ( - &wuffs_png__decoder__filter_and_swizzle_tricky); + v_a += self->private_impl.f_h0; + self->private_impl.f_h0 = v_a; + v_b += self->private_impl.f_h1; + self->private_impl.f_h1 = v_b; + v_c += self->private_impl.f_h2; + self->private_impl.f_h2 = v_c; + v_d += self->private_impl.f_h3; + self->private_impl.f_h3 = v_d; + v_e += self->private_impl.f_h4; + self->private_impl.f_h4 = v_e; + v_f += self->private_impl.f_h5; + self->private_impl.f_h5 = v_f; + v_g += self->private_impl.f_h6; + self->private_impl.f_h6 = v_g; + v_h += self->private_impl.f_h7; + self->private_impl.f_h7 = v_h; + v_p.ptr += 64; } - } else if (self->private_impl.f_color_type == 6u) { - if (self->private_impl.f_depth == 8u) { - self->private_impl.f_dst_pixfmt = 2164295816u; - self->private_impl.f_src_pixfmt = 2701166728u; - self->private_impl.f_filter_distance = 4u; - } else if (self->private_impl.f_depth == 16u) { - self->private_impl.f_dst_pixfmt = 2164308923u; - self->private_impl.f_src_pixfmt = 2164308923u; - self->private_impl.f_filter_distance = 8u; - self->private_impl.choosy_filter_and_swizzle = ( - &wuffs_png__decoder__filter_and_swizzle_tricky); + v_p.len = 1; + const uint8_t* i_end1_p = wuffs_private_impl__ptr_u8_plus_len(i_slice_p.ptr, i_slice_p.len); + while (v_p.ptr < i_end1_p) { + self->private_impl.f_buf_data[v_buf_len] = v_p.ptr[0u]; + v_buf_len = ((v_buf_len + 1u) & 63u); + v_p.ptr += 1; } + v_p.len = 0; } + self->private_impl.f_buf_len = ((uint32_t)((((uint64_t)(a_x.len)) & 63u))); return wuffs_base__make_empty_struct(); } -// -------- func png.decoder.calculate_bytes_per_row +// -------- func sha256.hasher.checksum_bitvec256 WUFFS_BASE__GENERATED_C_CODE -static uint64_t -wuffs_png__decoder__calculate_bytes_per_row( - const wuffs_png__decoder* self, - uint32_t a_width) { - uint64_t v_bytes_per_channel = 0; - - if (self->private_impl.f_depth == 1u) { - return ((uint64_t)(((a_width + 7u) / 8u))); - } else if (self->private_impl.f_depth == 2u) { - return ((uint64_t)(((a_width + 3u) / 4u))); - } else if (self->private_impl.f_depth == 4u) { - return ((uint64_t)(((a_width + 1u) / 2u))); +WUFFS_BASE__MAYBE_STATIC wuffs_base__bitvec256 +wuffs_sha256__hasher__checksum_bitvec256( + const wuffs_sha256__hasher* self) { + if (!self) { + return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); } - v_bytes_per_channel = ((uint64_t)(((uint8_t)(self->private_impl.f_depth >> 3u)))); - return (((uint64_t)(a_width)) * v_bytes_per_channel * ((uint64_t)(WUFFS_PNG__NUM_CHANNELS[self->private_impl.f_color_type]))); -} - -// -------- func png.decoder.choose_filter_implementations - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_png__decoder__choose_filter_implementations( - wuffs_png__decoder* self) { - if (self->private_impl.f_filter_distance == 3u) { - self->private_impl.choosy_filter_1 = ( - &wuffs_png__decoder__filter_1_distance_3_fallback); - self->private_impl.choosy_filter_3 = ( - &wuffs_png__decoder__filter_3_distance_3_fallback); - self->private_impl.choosy_filter_4 = ( -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) - wuffs_base__cpu_arch__have_arm_neon() ? &wuffs_png__decoder__filter_4_distance_3_arm_neon : -#endif -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_png__decoder__filter_4_distance_3_x86_sse42 : -#endif - &wuffs_png__decoder__filter_4_distance_3_fallback); - } else if (self->private_impl.f_filter_distance == 4u) { - self->private_impl.choosy_filter_1 = ( -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) - wuffs_base__cpu_arch__have_arm_neon() ? &wuffs_png__decoder__filter_1_distance_4_arm_neon : -#endif -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_png__decoder__filter_1_distance_4_x86_sse42 : -#endif - &wuffs_png__decoder__filter_1_distance_4_fallback); - self->private_impl.choosy_filter_3 = ( -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) - wuffs_base__cpu_arch__have_arm_neon() ? &wuffs_png__decoder__filter_3_distance_4_arm_neon : -#endif -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_png__decoder__filter_3_distance_4_x86_sse42 : -#endif - &wuffs_png__decoder__filter_3_distance_4_fallback); - self->private_impl.choosy_filter_4 = ( -#if defined(WUFFS_BASE__CPU_ARCH__ARM_NEON) - wuffs_base__cpu_arch__have_arm_neon() ? &wuffs_png__decoder__filter_4_distance_4_arm_neon : -#endif -#if defined(WUFFS_BASE__CPU_ARCH__X86_FAMILY) - wuffs_base__cpu_arch__have_x86_sse42() ? &wuffs_png__decoder__filter_4_distance_4_x86_sse42 : -#endif - &wuffs_png__decoder__filter_4_distance_4_fallback); + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); } - return wuffs_base__make_empty_struct(); -} -// -------- func png.decoder.decode_other_chunk - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_other_chunk( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src, - bool a_framy) { - wuffs_base__status status = wuffs_base__make_status(NULL); + uint32_t v_buf_len = 0; + uint8_t v_buf_data[64] = {0}; + uint64_t v_length_in_bits = 0; + uint32_t v_w[64] = {0}; + uint32_t v_w2 = 0; + uint32_t v_w15 = 0; + uint32_t v_s0 = 0; + uint32_t v_s1 = 0; + uint32_t v_t1 = 0; + uint32_t v_t2 = 0; + uint32_t v_h0 = 0; + uint32_t v_h1 = 0; + uint32_t v_h2 = 0; + uint32_t v_h3 = 0; + uint32_t v_h4 = 0; + uint32_t v_h5 = 0; + uint32_t v_h6 = 0; + uint32_t v_h7 = 0; + uint32_t v_a = 0; + uint32_t v_b = 0; + uint32_t v_c = 0; + uint32_t v_d = 0; + uint32_t v_e = 0; + uint32_t v_f = 0; + uint32_t v_g = 0; + uint32_t v_h = 0; + uint32_t v_i = 0; + bool v_final_block = false; - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; + v_i = 0u; + while (v_i < 64u) { + v_buf_data[v_i] = self->private_impl.f_buf_data[v_i]; + v_i += 1u; } - - uint32_t coro_susp_point = self->private_impl.p_decode_other_chunk; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - if ((self->private_impl.f_chunk_type == 1163152464u) && ! a_framy) { - if (self->private_impl.f_seen_plte) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } else if (self->private_impl.f_color_type == 3u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_png__decoder__decode_plte(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - } else if ((self->private_impl.f_color_type == 2u) || (self->private_impl.f_color_type == 6u)) { - } else { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_seen_plte = true; - } else if ((self->private_impl.f_chunk_type & 32u) == 0u) { - if (self->private_impl.f_chunk_type != 1413563465u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } + v_buf_len = (self->private_impl.f_buf_len & 63u); + if (v_buf_len < 56u) { + v_buf_data[v_buf_len] = 128u; + v_buf_len += 1u; + while (v_buf_len < 56u) { + v_buf_data[v_buf_len] = 0u; + v_buf_len += 1u; } - if (self->private_impl.f_chunk_type == 1716082789u) { - if (self->private_impl.f_report_metadata_exif) { - if (self->private_impl.f_seen_exif) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - status = wuffs_png__decoder__decode_exif(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - self->private_impl.f_seen_exif = true; - } - } else if ((self->private_impl.f_chunk_type == 1951945833u) || (self->private_impl.f_chunk_type == 1951942004u) || (self->private_impl.f_chunk_type == 1951945850u)) { - if (self->private_impl.f_report_metadata_kvp) { - self->private_impl.f_metadata_flavor = 4u; - self->private_impl.f_metadata_fourcc = 1263947851u; - self->private_impl.f_metadata_x = 0u; - self->private_impl.f_metadata_y = 0u; - self->private_impl.f_metadata_z = 0u; - } - } else if ( ! a_framy) { - if (self->private_impl.f_chunk_type == 1280598881u) { - if (self->private_impl.f_seen_actl) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - status = wuffs_png__decoder__decode_actl(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - self->private_impl.f_seen_actl = true; - } else if (self->private_impl.f_chunk_type == 1297238115u) { - if (self->private_impl.f_report_metadata_chrm) { - if (self->private_impl.f_seen_chrm) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - status = wuffs_png__decoder__decode_chrm(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - self->private_impl.f_seen_chrm = true; - } - } else if (self->private_impl.f_chunk_type == 1280598886u) { - if (self->private_impl.f_seen_fctl) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - status = wuffs_png__decoder__decode_fctl(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - self->private_impl.f_seen_fctl = true; - } else if (self->private_impl.f_chunk_type == 1095582055u) { - if (self->private_impl.f_report_metadata_gama) { - if (self->private_impl.f_seen_gama) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - status = wuffs_png__decoder__decode_gama(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - self->private_impl.f_seen_gama = true; - } - } else if (self->private_impl.f_chunk_type == 1346585449u) { - if (self->private_impl.f_report_metadata_iccp) { - if (self->private_impl.f_seen_iccp) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - status = wuffs_png__decoder__decode_iccp(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - self->private_impl.f_seen_iccp = true; - } - } else if (self->private_impl.f_chunk_type == 1111970419u) { - if (self->private_impl.f_report_metadata_srgb) { - if (self->private_impl.f_seen_srgb) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - status = wuffs_png__decoder__decode_srgb(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - self->private_impl.f_seen_srgb = true; - } - } else if (self->private_impl.f_chunk_type == 1397641844u) { - if (self->private_impl.f_seen_trns || (self->private_impl.f_color_type > 3u) || ((self->private_impl.f_color_type == 3u) && ! self->private_impl.f_seen_plte)) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - status = wuffs_png__decoder__decode_trns(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - self->private_impl.f_seen_trns = true; - } + v_final_block = true; + } else { + v_buf_data[v_buf_len] = 128u; + v_buf_len += 1u; + while (v_buf_len < 64u) { + v_buf_data[v_buf_len] = 0u; + v_buf_len += 1u; + } + } + v_h0 = self->private_impl.f_h0; + v_a = v_h0; + v_h1 = self->private_impl.f_h1; + v_b = v_h1; + v_h2 = self->private_impl.f_h2; + v_c = v_h2; + v_h3 = self->private_impl.f_h3; + v_d = v_h3; + v_h4 = self->private_impl.f_h4; + v_e = v_h4; + v_h5 = self->private_impl.f_h5; + v_f = v_h5; + v_h6 = self->private_impl.f_h6; + v_g = v_h6; + v_h7 = self->private_impl.f_h7; + v_h = v_h7; + while (true) { + if (v_final_block) { + v_length_in_bits = ((uint64_t)(self->private_impl.f_length_modulo_u64 * 8u)); + v_buf_data[56u] = ((uint8_t)((v_length_in_bits >> 56u))); + v_buf_data[57u] = ((uint8_t)((v_length_in_bits >> 48u))); + v_buf_data[58u] = ((uint8_t)((v_length_in_bits >> 40u))); + v_buf_data[59u] = ((uint8_t)((v_length_in_bits >> 32u))); + v_buf_data[60u] = ((uint8_t)((v_length_in_bits >> 24u))); + v_buf_data[61u] = ((uint8_t)((v_length_in_bits >> 16u))); + v_buf_data[62u] = ((uint8_t)((v_length_in_bits >> 8u))); + v_buf_data[63u] = ((uint8_t)(v_length_in_bits)); + } + v_w[0u] = ((((uint32_t)(v_buf_data[0u])) << 24u) | + (((uint32_t)(v_buf_data[1u])) << 16u) | + (((uint32_t)(v_buf_data[2u])) << 8u) | + ((uint32_t)(v_buf_data[3u]))); + v_w[1u] = ((((uint32_t)(v_buf_data[4u])) << 24u) | + (((uint32_t)(v_buf_data[5u])) << 16u) | + (((uint32_t)(v_buf_data[6u])) << 8u) | + ((uint32_t)(v_buf_data[7u]))); + v_w[2u] = ((((uint32_t)(v_buf_data[8u])) << 24u) | + (((uint32_t)(v_buf_data[9u])) << 16u) | + (((uint32_t)(v_buf_data[10u])) << 8u) | + ((uint32_t)(v_buf_data[11u]))); + v_w[3u] = ((((uint32_t)(v_buf_data[12u])) << 24u) | + (((uint32_t)(v_buf_data[13u])) << 16u) | + (((uint32_t)(v_buf_data[14u])) << 8u) | + ((uint32_t)(v_buf_data[15u]))); + v_w[4u] = ((((uint32_t)(v_buf_data[16u])) << 24u) | + (((uint32_t)(v_buf_data[17u])) << 16u) | + (((uint32_t)(v_buf_data[18u])) << 8u) | + ((uint32_t)(v_buf_data[19u]))); + v_w[5u] = ((((uint32_t)(v_buf_data[20u])) << 24u) | + (((uint32_t)(v_buf_data[21u])) << 16u) | + (((uint32_t)(v_buf_data[22u])) << 8u) | + ((uint32_t)(v_buf_data[23u]))); + v_w[6u] = ((((uint32_t)(v_buf_data[24u])) << 24u) | + (((uint32_t)(v_buf_data[25u])) << 16u) | + (((uint32_t)(v_buf_data[26u])) << 8u) | + ((uint32_t)(v_buf_data[27u]))); + v_w[7u] = ((((uint32_t)(v_buf_data[28u])) << 24u) | + (((uint32_t)(v_buf_data[29u])) << 16u) | + (((uint32_t)(v_buf_data[30u])) << 8u) | + ((uint32_t)(v_buf_data[31u]))); + v_w[8u] = ((((uint32_t)(v_buf_data[32u])) << 24u) | + (((uint32_t)(v_buf_data[33u])) << 16u) | + (((uint32_t)(v_buf_data[34u])) << 8u) | + ((uint32_t)(v_buf_data[35u]))); + v_w[9u] = ((((uint32_t)(v_buf_data[36u])) << 24u) | + (((uint32_t)(v_buf_data[37u])) << 16u) | + (((uint32_t)(v_buf_data[38u])) << 8u) | + ((uint32_t)(v_buf_data[39u]))); + v_w[10u] = ((((uint32_t)(v_buf_data[40u])) << 24u) | + (((uint32_t)(v_buf_data[41u])) << 16u) | + (((uint32_t)(v_buf_data[42u])) << 8u) | + ((uint32_t)(v_buf_data[43u]))); + v_w[11u] = ((((uint32_t)(v_buf_data[44u])) << 24u) | + (((uint32_t)(v_buf_data[45u])) << 16u) | + (((uint32_t)(v_buf_data[46u])) << 8u) | + ((uint32_t)(v_buf_data[47u]))); + v_w[12u] = ((((uint32_t)(v_buf_data[48u])) << 24u) | + (((uint32_t)(v_buf_data[49u])) << 16u) | + (((uint32_t)(v_buf_data[50u])) << 8u) | + ((uint32_t)(v_buf_data[51u]))); + v_w[13u] = ((((uint32_t)(v_buf_data[52u])) << 24u) | + (((uint32_t)(v_buf_data[53u])) << 16u) | + (((uint32_t)(v_buf_data[54u])) << 8u) | + ((uint32_t)(v_buf_data[55u]))); + v_w[14u] = ((((uint32_t)(v_buf_data[56u])) << 24u) | + (((uint32_t)(v_buf_data[57u])) << 16u) | + (((uint32_t)(v_buf_data[58u])) << 8u) | + ((uint32_t)(v_buf_data[59u]))); + v_w[15u] = ((((uint32_t)(v_buf_data[60u])) << 24u) | + (((uint32_t)(v_buf_data[61u])) << 16u) | + (((uint32_t)(v_buf_data[62u])) << 8u) | + ((uint32_t)(v_buf_data[63u]))); + v_i = 16u; + while (v_i < 64u) { + v_w2 = v_w[(v_i - 2u)]; + v_s1 = ((v_w2 >> 10u) ^ (((uint32_t)(v_w2 << 15u)) | (v_w2 >> 17u)) ^ (((uint32_t)(v_w2 << 13u)) | (v_w2 >> 19u))); + v_w15 = v_w[(v_i - 15u)]; + v_s0 = ((v_w15 >> 3u) ^ (((uint32_t)(v_w15 << 25u)) | (v_w15 >> 7u)) ^ (((uint32_t)(v_w15 << 14u)) | (v_w15 >> 18u))); + v_w[v_i] = ((uint32_t)(((uint32_t)(((uint32_t)(v_s1 + v_w[(v_i - 7u)])) + v_s0)) + v_w[(v_i - 16u)])); + v_i += 1u; + } + v_i = 0u; + while (v_i < 64u) { + v_t1 = v_h; + v_t1 += ((((uint32_t)(v_e << 26u)) | (v_e >> 6u)) ^ (((uint32_t)(v_e << 21u)) | (v_e >> 11u)) ^ (((uint32_t)(v_e << 7u)) | (v_e >> 25u))); + v_t1 += ((v_e & v_f) ^ ((4294967295u ^ v_e) & v_g)); + v_t1 += WUFFS_SHA256__K[v_i]; + v_t1 += v_w[v_i]; + v_t2 = ((((uint32_t)(v_a << 30u)) | (v_a >> 2u)) ^ (((uint32_t)(v_a << 19u)) | (v_a >> 13u)) ^ (((uint32_t)(v_a << 10u)) | (v_a >> 22u))); + v_t2 += ((v_a & v_b) ^ (v_a & v_c) ^ (v_b & v_c)); + v_h = v_g; + v_g = v_f; + v_f = v_e; + v_e = ((uint32_t)(v_d + v_t1)); + v_d = v_c; + v_c = v_b; + v_b = v_a; + v_a = ((uint32_t)(v_t1 + v_t2)); + v_i += 1u; + } + v_a += v_h0; + v_b += v_h1; + v_c += v_h2; + v_d += v_h3; + v_e += v_h4; + v_f += v_h5; + v_g += v_h6; + v_h += v_h7; + if (v_final_block) { + break; } - if (self->private_impl.f_metadata_fourcc == 0u) { - self->private_data.s_decode_other_chunk.scratch = self->private_impl.f_chunk_length; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); - if (self->private_data.s_decode_other_chunk.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_decode_other_chunk.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_decode_other_chunk.scratch; + v_final_block = true; + v_h0 = v_a; + v_h1 = v_b; + v_h2 = v_c; + v_h3 = v_d; + v_h4 = v_e; + v_h5 = v_f; + v_h6 = v_g; + v_h7 = v_h; + v_buf_len = 0u; + while (v_buf_len < 56u) { + v_buf_data[v_buf_len] = 0u; + v_buf_len += 1u; } + } + return wuffs_base__utility__make_bitvec256( + (((uint64_t)(v_h)) | (((uint64_t)(v_g)) << 32u)), + (((uint64_t)(v_f)) | (((uint64_t)(v_e)) << 32u)), + (((uint64_t)(v_d)) | (((uint64_t)(v_c)) << 32u)), + (((uint64_t)(v_b)) | (((uint64_t)(v_a)) << 32u))); +} - goto ok; - ok: - self->private_impl.p_decode_other_chunk = 0; - goto exit; +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__SHA256) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__TARGA) + +// ---------------- Status Codes Implementations + +const char wuffs_targa__error__bad_header[] = "#targa: bad header"; +const char wuffs_targa__error__bad_run_length_encoding[] = "#targa: bad run length encoding"; +const char wuffs_targa__error__truncated_input[] = "#targa: truncated input"; +const char wuffs_targa__error__unsupported_targa_file[] = "#targa: unsupported TARGA file"; + +// ---------------- Private Consts + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_targa__decoder__do_decode_image_config( + wuffs_targa__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_targa__decoder__do_decode_frame_config( + wuffs_targa__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_targa__decoder__do_decode_frame( + wuffs_targa__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); + +// ---------------- VTables + +const wuffs_base__image_decoder__func_ptrs +wuffs_targa__decoder__func_ptrs_for__wuffs_base__image_decoder = { + (wuffs_base__status(*)(void*, + wuffs_base__pixel_buffer*, + wuffs_base__io_buffer*, + wuffs_base__pixel_blend, + wuffs_base__slice_u8, + wuffs_base__decode_frame_options*))(&wuffs_targa__decoder__decode_frame), + (wuffs_base__status(*)(void*, + wuffs_base__frame_config*, + wuffs_base__io_buffer*))(&wuffs_targa__decoder__decode_frame_config), + (wuffs_base__status(*)(void*, + wuffs_base__image_config*, + wuffs_base__io_buffer*))(&wuffs_targa__decoder__decode_image_config), + (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_targa__decoder__frame_dirty_rect), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_targa__decoder__get_quirk), + (uint32_t(*)(const void*))(&wuffs_targa__decoder__num_animation_loops), + (uint64_t(*)(const void*))(&wuffs_targa__decoder__num_decoded_frame_configs), + (uint64_t(*)(const void*))(&wuffs_targa__decoder__num_decoded_frames), + (wuffs_base__status(*)(void*, + uint64_t, + uint64_t))(&wuffs_targa__decoder__restart_frame), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_targa__decoder__set_quirk), + (wuffs_base__empty_struct(*)(void*, + uint32_t, + bool))(&wuffs_targa__decoder__set_report_metadata), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__more_information*, + wuffs_base__io_buffer*))(&wuffs_targa__decoder__tell_me_more), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_targa__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_targa__decoder__initialize( + wuffs_targa__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); } - goto suspend; - suspend: - self->private_impl.p_decode_other_chunk = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } + } - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = + wuffs_base__image_decoder__vtable_name; + self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = + (const void*)(&wuffs_targa__decoder__func_ptrs_for__wuffs_base__image_decoder); + return wuffs_base__make_status(NULL); +} + +wuffs_targa__decoder* +wuffs_targa__decoder__alloc(void) { + wuffs_targa__decoder* x = + (wuffs_targa__decoder*)(calloc(1, sizeof(wuffs_targa__decoder))); + if (!x) { + return NULL; + } + if (wuffs_targa__decoder__initialize( + x, sizeof(wuffs_targa__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; } + return x; +} - return status; +size_t +sizeof__wuffs_targa__decoder(void) { + return sizeof(wuffs_targa__decoder); } -// -------- func png.decoder.decode_actl +// ---------------- Function Implementations + +// -------- func targa.decoder.get_quirk WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_actl( - wuffs_png__decoder* self, +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_targa__decoder__get_quirk( + const wuffs_targa__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return 0u; +} + +// -------- func targa.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_targa__decoder__set_quirk( + wuffs_targa__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} + +// -------- func targa.decoder.decode_image_config + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_targa__decoder__decode_image_config( + wuffs_targa__decoder* self, + wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } + wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_decode_actl; + uint32_t coro_susp_point = self->private_impl.p_decode_image_config; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_chunk_length != 8u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } else if (self->private_impl.f_interlace_pass > 0u) { - status = wuffs_base__make_status(wuffs_png__error__unsupported_png_file); - goto exit; - } - self->private_impl.f_chunk_length = 0u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint32_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_actl.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_actl.scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); - if (num_bits_0 == 24) { - t_0 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); - } + while (true) { + { + wuffs_base__status t_0 = wuffs_targa__decoder__do_decode_image_config(self, a_dst, a_src); + v_status = t_0; } - self->private_impl.f_num_animation_frames_value = t_0; - } - if (self->private_impl.f_num_animation_frames_value == 0u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint32_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_1 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_actl.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_actl.scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); - if (num_bits_1 == 24) { - t_1 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)); - } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_targa__error__truncated_input); + goto exit; } - self->private_impl.f_num_animation_loops_value = t_1; + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } - goto ok; ok: - self->private_impl.p_decode_actl = 0; + self->private_impl.p_decode_image_config = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_actl = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; goto exit; exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; } - return status; } -// -------- func png.decoder.decode_chrm +// -------- func targa.decoder.do_decode_image_config WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__decode_chrm( - wuffs_png__decoder* self, +wuffs_targa__decoder__do_decode_image_config( + wuffs_targa__decoder* self, + wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint64_t v_u = 0; + uint32_t v_c32 = 0; + uint32_t v_c5 = 0; + uint32_t v_i = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -59166,272 +73001,424 @@ wuffs_png__decoder__decode_chrm( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_chrm; + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; + if (coro_susp_point) { + v_i = self->private_data.s_do_decode_image_config.v_i; + } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_chunk_length != 32u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + if (self->private_impl.f_call_sequence != 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); goto exit; } - self->private_impl.f_chunk_length = 0u; - self->private_impl.f_metadata_flavor = 5u; - self->private_impl.f_metadata_fourcc = 1128813133u; - self->private_impl.f_metadata_x = 0u; - self->private_impl.f_metadata_y = 0u; - self->private_impl.f_metadata_z = 0u; { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint64_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_0 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); - iop_a_src += 4; - } else { - self->private_data.s_decode_chrm.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); - if (num_bits_0 == 24) { - t_0 = ((uint64_t)(*scratch >> 32)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); - } + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - v_u = t_0; + uint8_t t_0 = *iop_a_src++; + self->private_impl.f_header_id_length = t_0; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + self->private_impl.f_header_color_map_type = t_1; + } + if (self->private_impl.f_header_color_map_type > 1u) { + status = wuffs_base__make_status(wuffs_targa__error__bad_header); + goto exit; } - self->private_impl.f_metadata_x |= ((16777215u & v_u) << 0u); { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint64_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_1 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); - iop_a_src += 4; - } else { - self->private_data.s_decode_chrm.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); - if (num_bits_1 == 24) { - t_1 = ((uint64_t)(*scratch >> 32)); - break; - } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)); - } + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - v_u = t_1; + uint8_t t_2 = *iop_a_src++; + self->private_impl.f_header_image_type = t_2; + } + if ((self->private_impl.f_header_image_type == 1u) || + (self->private_impl.f_header_image_type == 2u) || + (self->private_impl.f_header_image_type == 3u) || + (self->private_impl.f_header_image_type == 9u) || + (self->private_impl.f_header_image_type == 10u) || + (self->private_impl.f_header_image_type == 11u)) { + } else { + status = wuffs_base__make_status(wuffs_targa__error__bad_header); + goto exit; } - self->private_impl.f_metadata_x |= ((16777215u & v_u) << 24u); { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - uint64_t t_2; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_2 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); - iop_a_src += 4; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + uint16_t t_3; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_3 = wuffs_base__peek_u16le__no_bounds_check(iop_a_src); + iop_a_src += 2; } else { - self->private_data.s_decode_chrm.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; - uint32_t num_bits_2 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_3 = ((uint32_t)(*scratch >> 56)); *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_2); - if (num_bits_2 == 24) { - t_2 = ((uint64_t)(*scratch >> 32)); + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_3; + if (num_bits_3 == 8) { + t_3 = ((uint16_t)(*scratch)); break; } - num_bits_2 += 8u; - *scratch |= ((uint64_t)(num_bits_2)); + num_bits_3 += 8u; + *scratch |= ((uint64_t)(num_bits_3)) << 56; } } - v_u = t_2; + self->private_impl.f_header_color_map_first_entry_index = t_3; } - self->private_impl.f_metadata_x |= ((uint64_t)((16777215u & v_u) << 48u)); - self->private_impl.f_metadata_y |= ((16777215u & v_u) >> 16u); { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - uint64_t t_3; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_3 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); - iop_a_src += 4; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + uint16_t t_4; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_4 = wuffs_base__peek_u16le__no_bounds_check(iop_a_src); + iop_a_src += 2; } else { - self->private_data.s_decode_chrm.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; - uint32_t num_bits_3 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_4 = ((uint32_t)(*scratch >> 56)); *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_3); - if (num_bits_3 == 24) { - t_3 = ((uint64_t)(*scratch >> 32)); + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_4; + if (num_bits_4 == 8) { + t_4 = ((uint16_t)(*scratch)); break; } - num_bits_3 += 8u; - *scratch |= ((uint64_t)(num_bits_3)); + num_bits_4 += 8u; + *scratch |= ((uint64_t)(num_bits_4)) << 56; } } - v_u = t_3; + self->private_impl.f_header_color_map_length = t_4; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_5 = *iop_a_src++; + self->private_impl.f_header_color_map_entry_size = t_5; + } + if (self->private_impl.f_header_color_map_type != 0u) { + if ((self->private_impl.f_header_color_map_first_entry_index != 0u) || (self->private_impl.f_header_color_map_length > 256u)) { + status = wuffs_base__make_status(wuffs_targa__error__unsupported_targa_file); + goto exit; + } else if ((self->private_impl.f_header_color_map_entry_size != 15u) && + (self->private_impl.f_header_color_map_entry_size != 16u) && + (self->private_impl.f_header_color_map_entry_size != 24u) && + (self->private_impl.f_header_color_map_entry_size != 32u)) { + status = wuffs_base__make_status(wuffs_targa__error__bad_header); + goto exit; + } + } else { + if ((self->private_impl.f_header_color_map_first_entry_index != 0u) || (self->private_impl.f_header_color_map_length != 0u) || (self->private_impl.f_header_color_map_entry_size != 0u)) { + status = wuffs_base__make_status(wuffs_targa__error__bad_header); + goto exit; + } + } + self->private_data.s_do_decode_image_config.scratch = 4u; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + if (self->private_data.s_do_decode_image_config.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_decode_image_config.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - self->private_impl.f_metadata_y |= ((16777215u & v_u) << 8u); + iop_a_src += self->private_data.s_do_decode_image_config.scratch; { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - uint64_t t_4; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_4 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); - iop_a_src += 4; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + uint32_t t_6; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_6 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2; } else { - self->private_data.s_decode_chrm.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; - uint32_t num_bits_4 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_6 = ((uint32_t)(*scratch >> 56)); *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_4); - if (num_bits_4 == 24) { - t_4 = ((uint64_t)(*scratch >> 32)); + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_6; + if (num_bits_6 == 8) { + t_6 = ((uint32_t)(*scratch)); break; } - num_bits_4 += 8u; - *scratch |= ((uint64_t)(num_bits_4)); + num_bits_6 += 8u; + *scratch |= ((uint64_t)(num_bits_6)) << 56; } } - v_u = t_4; + self->private_impl.f_width = t_6; } - self->private_impl.f_metadata_y |= ((16777215u & v_u) << 32u); { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); - uint64_t t_5; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_5 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); - iop_a_src += 4; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + uint32_t t_7; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_7 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2; } else { - self->private_data.s_decode_chrm.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; - uint32_t num_bits_5 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_7 = ((uint32_t)(*scratch >> 56)); *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_5); - if (num_bits_5 == 24) { - t_5 = ((uint64_t)(*scratch >> 32)); + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_7; + if (num_bits_7 == 8) { + t_7 = ((uint32_t)(*scratch)); break; } - num_bits_5 += 8u; - *scratch |= ((uint64_t)(num_bits_5)); + num_bits_7 += 8u; + *scratch |= ((uint64_t)(num_bits_7)) << 56; } } - v_u = t_5; + self->private_impl.f_height = t_7; } - self->private_impl.f_metadata_y |= ((uint64_t)((16777215u & v_u) << 56u)); - self->private_impl.f_metadata_z |= ((16777215u & v_u) >> 8u); { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); - uint64_t t_6; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_6 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); - iop_a_src += 4; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_8 = *iop_a_src++; + self->private_impl.f_header_pixel_depth = t_8; + } + if ((self->private_impl.f_header_pixel_depth != 1u) && + (self->private_impl.f_header_pixel_depth != 8u) && + (self->private_impl.f_header_pixel_depth != 15u) && + (self->private_impl.f_header_pixel_depth != 16u) && + (self->private_impl.f_header_pixel_depth != 24u) && + (self->private_impl.f_header_pixel_depth != 32u)) { + status = wuffs_base__make_status(wuffs_targa__error__bad_header); + goto exit; + } + if (((uint8_t)(self->private_impl.f_header_image_type | 8u)) == 9u) { + self->private_impl.f_scratch_bytes_per_pixel = 1u; + self->private_impl.f_src_bytes_per_pixel = 1u; + self->private_impl.f_src_pixfmt = 2164523016u; + self->private_impl.f_opaque = ((self->private_impl.f_header_color_map_entry_size == 15u) || (self->private_impl.f_header_color_map_entry_size == 24u)); + } else if (((uint8_t)(self->private_impl.f_header_image_type | 8u)) == 10u) { + if ((self->private_impl.f_header_pixel_depth == 15u) || (self->private_impl.f_header_pixel_depth == 16u)) { + self->private_impl.f_scratch_bytes_per_pixel = 4u; + self->private_impl.f_src_bytes_per_pixel = 0u; + self->private_impl.f_src_pixfmt = 2164295816u; + } else if (self->private_impl.f_header_pixel_depth == 24u) { + self->private_impl.f_scratch_bytes_per_pixel = 3u; + self->private_impl.f_src_bytes_per_pixel = 3u; + self->private_impl.f_src_pixfmt = 2147485832u; + self->private_impl.f_opaque = true; + } else if (self->private_impl.f_header_pixel_depth == 32u) { + self->private_impl.f_scratch_bytes_per_pixel = 4u; + self->private_impl.f_src_bytes_per_pixel = 4u; + self->private_impl.f_src_pixfmt = 2164295816u; } else { - self->private_data.s_decode_chrm.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; - uint32_t num_bits_6 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_6); - if (num_bits_6 == 24) { - t_6 = ((uint64_t)(*scratch >> 32)); - break; - } - num_bits_6 += 8u; - *scratch |= ((uint64_t)(num_bits_6)); - } + status = wuffs_base__make_status(wuffs_targa__error__unsupported_targa_file); + goto exit; + } + } else { + if (self->private_impl.f_header_pixel_depth == 8u) { + self->private_impl.f_scratch_bytes_per_pixel = 1u; + self->private_impl.f_src_bytes_per_pixel = 1u; + self->private_impl.f_src_pixfmt = 536870920u; + self->private_impl.f_opaque = true; + } else { + status = wuffs_base__make_status(wuffs_targa__error__unsupported_targa_file); + goto exit; } - v_u = t_6; } - self->private_impl.f_metadata_z |= ((16777215u & v_u) << 16u); { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); - uint64_t t_7; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_7 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); - iop_a_src += 4; - } else { - self->private_data.s_decode_chrm.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_9 = *iop_a_src++; + self->private_impl.f_header_image_descriptor = t_9; + } + if (((uint8_t)(self->private_impl.f_header_image_descriptor & 16u)) != 0u) { + status = wuffs_base__make_status(wuffs_targa__error__unsupported_targa_file); + goto exit; + } + self->private_data.s_do_decode_image_config.scratch = ((uint32_t)(self->private_impl.f_header_id_length)); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); + if (self->private_data.s_do_decode_image_config.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_decode_image_config.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_decode_image_config.scratch; + if (self->private_impl.f_header_color_map_type != 0u) { + while (v_i < ((uint32_t)(self->private_impl.f_header_color_map_length))) { + if (self->private_impl.f_header_color_map_entry_size == 24u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(17); + uint32_t t_10; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 3)) { + t_10 = ((uint32_t)(wuffs_base__peek_u24le__no_bounds_check(iop_a_src))); + iop_a_src += 3; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(18); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_10 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_10; + if (num_bits_10 == 16) { + t_10 = ((uint32_t)(*scratch)); + break; + } + num_bits_10 += 8u; + *scratch |= ((uint64_t)(num_bits_10)) << 56; + } + } + v_c32 = t_10; } - uint64_t* scratch = &self->private_data.s_decode_chrm.scratch; - uint32_t num_bits_7 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_7); - if (num_bits_7 == 24) { - t_7 = ((uint64_t)(*scratch >> 32)); - break; + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 0u)] = ((uint8_t)((v_c32 >> 0u))); + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 1u)] = ((uint8_t)((v_c32 >> 8u))); + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 2u)] = ((uint8_t)((v_c32 >> 16u))); + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 3u)] = 255u; + } else if (self->private_impl.f_header_color_map_entry_size == 32u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(19); + uint32_t t_11; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_11 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(20); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_11 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_11; + if (num_bits_11 == 24) { + t_11 = ((uint32_t)(*scratch)); + break; + } + num_bits_11 += 8u; + *scratch |= ((uint64_t)(num_bits_11)) << 56; + } + } + v_c32 = t_11; } - num_bits_7 += 8u; - *scratch |= ((uint64_t)(num_bits_7)); + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 0u)] = ((uint8_t)((v_c32 >> 0u))); + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 1u)] = ((uint8_t)((v_c32 >> 8u))); + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 2u)] = ((uint8_t)((v_c32 >> 16u))); + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 3u)] = ((uint8_t)((v_c32 >> 24u))); + } else { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(21); + uint32_t t_12; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_12 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(22); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_12 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_12; + if (num_bits_12 == 8) { + t_12 = ((uint32_t)(*scratch)); + break; + } + num_bits_12 += 8u; + *scratch |= ((uint64_t)(num_bits_12)) << 56; + } + } + v_c32 = t_12; + } + v_c5 = (31u & (v_c32 >> 0u)); + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 0u)] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); + v_c5 = (31u & (v_c32 >> 5u)); + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 1u)] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); + v_c5 = (31u & (v_c32 >> 10u)); + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 2u)] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); + self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 3u)] = 255u; } + v_i += 1u; + } + while (v_i < 256u) { + self->private_data.f_src_palette[((v_i * 4u) + 0u)] = 0u; + self->private_data.f_src_palette[((v_i * 4u) + 1u)] = 0u; + self->private_data.f_src_palette[((v_i * 4u) + 2u)] = 0u; + self->private_data.f_src_palette[((v_i * 4u) + 3u)] = 255u; + v_i += 1u; } - v_u = t_7; } - self->private_impl.f_metadata_z |= ((16777215u & v_u) << 40u); + self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); + if (a_dst != NULL) { + wuffs_base__image_config__set( + a_dst, + self->private_impl.f_src_pixfmt, + 0u, + self->private_impl.f_width, + self->private_impl.f_height, + self->private_impl.f_frame_config_io_position, + self->private_impl.f_opaque); + } + self->private_impl.f_call_sequence = 32u; goto ok; ok: - self->private_impl.p_decode_chrm = 0; + self->private_impl.p_do_decode_image_config = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_chrm = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_decode_image_config.v_i = v_i; goto exit; exit: @@ -59442,12 +73429,79 @@ wuffs_png__decoder__decode_chrm( return status; } -// -------- func png.decoder.decode_exif +// -------- func targa.decoder.decode_frame_config + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_targa__decoder__decode_frame_config( + wuffs_targa__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 2)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_targa__decoder__do_decode_frame_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_targa__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_frame_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func targa.decoder.do_decode_frame_config WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__decode_exif( - wuffs_png__decoder* self, +wuffs_targa__decoder__do_decode_frame_config( + wuffs_targa__decoder* self, + wuffs_base__frame_config* a_dst, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); @@ -59462,19 +73516,63 @@ wuffs_png__decoder__decode_exif( io2_a_src = io0_a_src + a_src->meta.wi; } - if (self->private_impl.f_chunk_length < 4u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence == 32u) { + } else if (self->private_impl.f_call_sequence < 32u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_targa__decoder__do_decode_image_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else if (self->private_impl.f_call_sequence == 40u) { + if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_restart); + goto exit; + } + } else if (self->private_impl.f_call_sequence == 64u) { + self->private_impl.f_call_sequence = 96u; + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + if (a_dst != NULL) { + wuffs_base__frame_config__set( + a_dst, + wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height), + ((wuffs_base__flicks)(0u)), + 0u, + self->private_impl.f_frame_config_io_position, + 0u, + self->private_impl.f_opaque, + false, + 4278190080u); + } + self->private_impl.f_call_sequence = 64u; + + ok: + self->private_impl.p_do_decode_frame_config = 0; goto exit; } - self->private_impl.f_metadata_flavor = 3u; - self->private_impl.f_metadata_fourcc = 1163413830u; - self->private_impl.f_metadata_x = 0u; - self->private_impl.f_metadata_y = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); - self->private_impl.f_metadata_z = wuffs_base__u64__sat_add(self->private_impl.f_metadata_y, ((uint64_t)(self->private_impl.f_chunk_length))); - self->private_impl.f_chunk_length = 0u; - goto ok; - ok: + goto suspend; + suspend: + self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + goto exit; exit: if (a_src && a_src->data.ptr) { @@ -59484,19 +73582,113 @@ wuffs_png__decoder__decode_exif( return status; } -// -------- func png.decoder.decode_fctl +// -------- func targa.decoder.decode_frame WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_fctl( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src) { +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_targa__decoder__decode_frame( + wuffs_targa__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 3)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t v_x0 = 0; - uint32_t v_y0 = 0; - uint32_t v_x1 = 0; - uint32_t v_y1 = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_frame; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_targa__decoder__do_decode_frame(self, + a_dst, + a_src, + a_blend, + a_workbuf, + a_opts); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_targa__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_frame = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func targa.decoder.do_decode_frame + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_targa__decoder__do_decode_frame( + wuffs_targa__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint64_t v_dst_bytes_per_pixel = 0; + uint32_t v_dst_x = 0; + uint32_t v_dst_y = 0; + wuffs_base__table_u8 v_tab = {0}; + wuffs_base__slice_u8 v_dst_palette = {0}; + wuffs_base__slice_u8 v_dst = {0}; + uint64_t v_dst_start = 0; + wuffs_base__slice_u8 v_src_palette = {0}; + uint64_t v_mark = 0; + uint64_t v_num_pixels64 = 0; + uint32_t v_num_pixels32 = 0; + uint32_t v_lit_length = 0; + uint32_t v_run_length = 0; + uint64_t v_num_dst_bytes = 0; + uint32_t v_num_src_bytes = 0; + uint32_t v_c32 = 0; + uint32_t v_c5 = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -59509,309 +73701,276 @@ wuffs_png__decoder__decode_fctl( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_fctl; + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; if (coro_susp_point) { - v_x0 = self->private_data.s_decode_fctl.v_x0; - v_x1 = self->private_data.s_decode_fctl.v_x1; - v_y1 = self->private_data.s_decode_fctl.v_y1; + v_dst_bytes_per_pixel = self->private_data.s_do_decode_frame.v_dst_bytes_per_pixel; + v_dst_x = self->private_data.s_do_decode_frame.v_dst_x; + v_dst_y = self->private_data.s_do_decode_frame.v_dst_y; + v_mark = self->private_data.s_do_decode_frame.v_mark; + v_num_pixels32 = self->private_data.s_do_decode_frame.v_num_pixels32; + v_lit_length = self->private_data.s_do_decode_frame.v_lit_length; + v_run_length = self->private_data.s_do_decode_frame.v_run_length; + v_num_dst_bytes = self->private_data.s_do_decode_frame.v_num_dst_bytes; } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_chunk_length != 26u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_length = 0u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint32_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_fctl.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_fctl.scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); - if (num_bits_0 == 24) { - t_0 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); - } + if (self->private_impl.f_call_sequence == 64u) { + } else if (self->private_impl.f_call_sequence < 64u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - v_x0 = t_0; - } - if (v_x0 != self->private_impl.f_next_animation_seq_num) { - status = wuffs_base__make_status(wuffs_png__error__bad_animation_sequence_number); - goto exit; - } else if (self->private_impl.f_next_animation_seq_num >= 4294967295u) { - status = wuffs_base__make_status(wuffs_png__error__unsupported_png_file); - goto exit; - } - self->private_impl.f_next_animation_seq_num += 1u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint32_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_1 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_fctl.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_fctl.scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); - if (num_bits_1 == 24) { - t_1 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)); - } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_targa__decoder__do_decode_frame_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; } - v_x1 = t_1; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - uint32_t t_2; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_2 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_fctl.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_fctl.scratch; - uint32_t num_bits_2 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_2); - if (num_bits_2 == 24) { - t_2 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_2 += 8u; - *scratch |= ((uint64_t)(num_bits_2)); - } + if (status.repr) { + goto suspend; } - v_y1 = t_2; + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - uint32_t t_3; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_3 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_fctl.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_fctl.scratch; - uint32_t num_bits_3 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_3); - if (num_bits_3 == 24) { - t_3 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_3 += 8u; - *scratch |= ((uint64_t)(num_bits_3)); - } - } - v_x0 = t_3; + if (self->private_impl.f_header_color_map_type != 0u) { + v_src_palette = wuffs_base__make_slice_u8(self->private_data.f_src_palette, 1024); } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - uint32_t t_4; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_4 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_fctl.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_fctl.scratch; - uint32_t num_bits_4 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_4); - if (num_bits_4 == 24) { - t_4 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_4 += 8u; - *scratch |= ((uint64_t)(num_bits_4)); - } + v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, + wuffs_base__pixel_buffer__pixel_format(a_dst), + wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)), + wuffs_base__utility__make_pixel_format(self->private_impl.f_src_pixfmt), + v_src_palette, + a_blend); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; } - v_y0 = t_4; + goto ok; } - v_x1 += v_x0; - v_y1 += v_y0; - if ((v_x0 >= v_x1) || - (v_x0 > self->private_impl.f_width) || - (v_x1 > self->private_impl.f_width) || - (v_y0 >= v_y1) || - (v_y0 > self->private_impl.f_height) || - (v_y1 > self->private_impl.f_height)) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_option); goto exit; } - self->private_impl.f_frame_rect_x0 = v_x0; - self->private_impl.f_frame_rect_y0 = v_y0; - self->private_impl.f_frame_rect_x1 = v_x1; - self->private_impl.f_frame_rect_y1 = v_y1; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); - uint32_t t_5; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_5 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_decode_fctl.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_fctl.scratch; - uint32_t num_bits_5 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_5); - if (num_bits_5 == 8) { - t_5 = ((uint32_t)(*scratch >> 48)); - break; - } - num_bits_5 += 8u; - *scratch |= ((uint64_t)(num_bits_5)); - } - } - v_x0 = t_5; + v_dst_bytes_per_pixel = ((uint64_t)((v_dst_bits_per_pixel / 8u))); + if (((uint8_t)(self->private_impl.f_header_image_descriptor & 32u)) == 0u) { + v_dst_y = ((uint32_t)(self->private_impl.f_height - 1u)); } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); - uint32_t t_6; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_6 = ((uint32_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_decode_fctl.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_fctl.scratch; - uint32_t num_bits_6 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_6); - if (num_bits_6 == 8) { - t_6 = ((uint32_t)(*scratch >> 48)); - break; + if (((uint8_t)(self->private_impl.f_header_image_type & 8u)) == 0u) { + v_lit_length = self->private_impl.f_width; + } + label__resume__continue:; + while (true) { + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + v_dst_palette = wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)); + while (v_dst_y < self->private_impl.f_height) { + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, v_dst_y); + v_dst_start = (((uint64_t)(v_dst_x)) * v_dst_bytes_per_pixel); + if (v_dst_start <= ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_start); + } else { + v_dst = wuffs_base__utility__empty_slice_u8(); + } + while (v_dst_x < self->private_impl.f_width) { + if (self->private_impl.f_src_bytes_per_pixel > 0u) { + if (v_lit_length > 0u) { + v_mark = ((uint64_t)(iop_a_src - io0_a_src)); + v_num_pixels64 = (((uint64_t)(io2_a_src - iop_a_src)) / ((uint64_t)(self->private_impl.f_src_bytes_per_pixel))); + v_num_pixels32 = ((uint32_t)(wuffs_base__u64__min(v_num_pixels64, ((uint64_t)(v_lit_length))))); + v_num_dst_bytes = (((uint64_t)(v_num_pixels32)) * v_dst_bytes_per_pixel); + v_num_src_bytes = (v_num_pixels32 * self->private_impl.f_src_bytes_per_pixel); + self->private_data.s_do_decode_frame.scratch = v_num_src_bytes; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (self->private_data.s_do_decode_frame.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_decode_frame.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_decode_frame.scratch; + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_private_impl__io__since(v_mark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); + if (v_num_dst_bytes <= ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_num_dst_bytes); + } else { + v_dst = wuffs_base__utility__empty_slice_u8(); + } + v_dst_x += v_num_pixels32; + v_lit_length = (((uint32_t)(v_lit_length - v_num_pixels32)) & 65535u); + if (v_lit_length > 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); + goto label__resume__continue; + } + } else if (v_run_length > 0u) { + v_run_length -= 1u; + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, self->private_impl.f_scratch_bytes_per_pixel)); + if (v_dst_bytes_per_pixel <= ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_bytes_per_pixel); + } + v_dst_x += 1u; + } else { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); + goto label__resume__continue; + } + if (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) < 128u) { + v_lit_length = (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) + 1u); + iop_a_src += 1u; + if ((v_lit_length + v_dst_x) > self->private_impl.f_width) { + status = wuffs_base__make_status(wuffs_targa__error__bad_run_length_encoding); + goto exit; + } + } else { + if (self->private_impl.f_src_bytes_per_pixel == 1u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 2u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); + goto label__resume__continue; + } + v_run_length = ((((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) & 127u) + 1u); + iop_a_src += 1u; + self->private_data.f_scratch[0u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + } else if (self->private_impl.f_src_bytes_per_pixel == 3u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); + goto label__resume__continue; + } + v_run_length = ((((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) & 127u) + 1u); + iop_a_src += 1u; + self->private_data.f_scratch[0u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + self->private_data.f_scratch[1u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + self->private_data.f_scratch[2u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + } else { + if (((uint64_t)(io2_a_src - iop_a_src)) < 5u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); + goto label__resume__continue; + } + v_run_length = ((((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) & 127u) + 1u); + iop_a_src += 1u; + self->private_data.f_scratch[0u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + self->private_data.f_scratch[1u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + self->private_data.f_scratch[2u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + self->private_data.f_scratch[3u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + } + if ((v_run_length + v_dst_x) > self->private_impl.f_width) { + status = wuffs_base__make_status(wuffs_targa__error__bad_run_length_encoding); + goto exit; + } + } + } + } else { + if (v_lit_length > 0u) { + if (((uint64_t)(io2_a_src - iop_a_src)) < 2u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); + goto label__resume__continue; + } + v_c32 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2u; + v_c5 = (31u & (v_c32 >> 0u)); + self->private_data.f_scratch[0u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); + v_c5 = (31u & (v_c32 >> 5u)); + self->private_data.f_scratch[1u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); + v_c5 = (31u & (v_c32 >> 10u)); + self->private_data.f_scratch[2u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); + self->private_data.f_scratch[3u] = 255u; + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, 4)); + if (v_dst_bytes_per_pixel <= ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_bytes_per_pixel); + } + v_dst_x += 1u; + v_lit_length -= 1u; + } else if (v_run_length > 0u) { + v_run_length -= 1u; + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, self->private_impl.f_scratch_bytes_per_pixel)); + if (v_dst_bytes_per_pixel <= ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_bytes_per_pixel); + } + v_dst_x += 1u; + } else { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); + goto label__resume__continue; + } + if (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) < 128u) { + v_lit_length = (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) + 1u); + iop_a_src += 1u; + if ((v_lit_length + v_dst_x) > self->private_impl.f_width) { + status = wuffs_base__make_status(wuffs_targa__error__bad_run_length_encoding); + goto exit; + } + } else { + if (((uint64_t)(io2_a_src - iop_a_src)) < 3u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(10); + goto label__resume__continue; + } + v_run_length = ((((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) & 127u) + 1u); + iop_a_src += 1u; + v_c32 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2u; + v_c5 = (31u & (v_c32 >> 0u)); + self->private_data.f_scratch[0u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); + v_c5 = (31u & (v_c32 >> 5u)); + self->private_data.f_scratch[1u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); + v_c5 = (31u & (v_c32 >> 10u)); + self->private_data.f_scratch[2u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); + self->private_data.f_scratch[3u] = 255u; + if ((v_run_length + v_dst_x) > self->private_impl.f_width) { + status = wuffs_base__make_status(wuffs_targa__error__bad_run_length_encoding); + goto exit; + } + } + } } - num_bits_6 += 8u; - *scratch |= ((uint64_t)(num_bits_6)); + } + v_dst_x = 0u; + if (((uint8_t)(self->private_impl.f_header_image_descriptor & 32u)) == 0u) { + v_dst_y -= 1u; + } else { + v_dst_y += 1u; + } + if (((uint8_t)(self->private_impl.f_header_image_type & 8u)) == 0u) { + v_lit_length = self->private_impl.f_width; } } - v_x1 = t_6; - } - if (v_x1 <= 0u) { - self->private_impl.f_frame_duration = (((uint64_t)(v_x0)) * 7056000u); - } else { - self->private_impl.f_frame_duration = ((((uint64_t)(v_x0)) * 705600000u) / ((uint64_t)(v_x1))); - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint32_t t_7 = *iop_a_src++; - v_x0 = t_7; - } - if (v_x0 == 0u) { - self->private_impl.f_frame_disposal = 0u; - } else if (v_x0 == 1u) { - self->private_impl.f_frame_disposal = 1u; - } else if (v_x0 == 2u) { - self->private_impl.f_frame_disposal = 2u; - } else { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint32_t t_8 = *iop_a_src++; - v_x0 = t_8; - } - if (v_x0 == 0u) { - self->private_impl.f_frame_overwrite_instead_of_blend = true; - } else if (v_x0 == 1u) { - self->private_impl.f_frame_overwrite_instead_of_blend = false; - } else { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - if (self->private_impl.f_num_decoded_frame_configs_value == 0u) { - self->private_impl.f_first_rect_x0 = self->private_impl.f_frame_rect_x0; - self->private_impl.f_first_rect_y0 = self->private_impl.f_frame_rect_y0; - self->private_impl.f_first_rect_x1 = self->private_impl.f_frame_rect_x1; - self->private_impl.f_first_rect_y1 = self->private_impl.f_frame_rect_y1; - self->private_impl.f_first_duration = self->private_impl.f_frame_duration; - self->private_impl.f_first_disposal = self->private_impl.f_frame_disposal; - self->private_impl.f_first_overwrite_instead_of_blend = self->private_impl.f_frame_overwrite_instead_of_blend; + break; } + self->private_impl.f_call_sequence = 96u; - goto ok; ok: - self->private_impl.p_decode_fctl = 0; + self->private_impl.p_do_decode_frame = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_fctl = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_fctl.v_x0 = v_x0; - self->private_data.s_decode_fctl.v_x1 = v_x1; - self->private_data.s_decode_fctl.v_y1 = v_y1; + self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_decode_frame.v_dst_bytes_per_pixel = v_dst_bytes_per_pixel; + self->private_data.s_do_decode_frame.v_dst_x = v_dst_x; + self->private_data.s_do_decode_frame.v_dst_y = v_dst_y; + self->private_data.s_do_decode_frame.v_mark = v_mark; + self->private_data.s_do_decode_frame.v_num_pixels32 = v_num_pixels32; + self->private_data.s_do_decode_frame.v_lit_length = v_lit_length; + self->private_data.s_do_decode_frame.v_run_length = v_run_length; + self->private_data.s_do_decode_frame.v_num_dst_bytes = v_num_dst_bytes; goto exit; exit: @@ -59822,189 +73981,848 @@ wuffs_png__decoder__decode_fctl( return status; } -// -------- func png.decoder.decode_gama +// -------- func targa.decoder.frame_dirty_rect WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_gama( - wuffs_png__decoder* self, +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_targa__decoder__frame_dirty_rect( + const wuffs_targa__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + + return wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height); +} + +// -------- func targa.decoder.num_animation_loops + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_targa__decoder__num_animation_loops( + const wuffs_targa__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return 0u; +} + +// -------- func targa.decoder.num_decoded_frame_configs + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_targa__decoder__num_decoded_frame_configs( + const wuffs_targa__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (self->private_impl.f_call_sequence > 32u) { + return 1u; + } + return 0u; +} + +// -------- func targa.decoder.num_decoded_frames + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_targa__decoder__num_decoded_frames( + const wuffs_targa__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (self->private_impl.f_call_sequence > 64u) { + return 1u; + } + return 0u; +} + +// -------- func targa.decoder.restart_frame + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_targa__decoder__restart_frame( + wuffs_targa__decoder* self, + uint64_t a_index, + uint64_t a_io_position) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + if (self->private_impl.f_call_sequence < 32u) { + return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + } + if (a_index != 0u) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + self->private_impl.f_call_sequence = 40u; + self->private_impl.f_frame_config_io_position = a_io_position; + return wuffs_base__make_status(NULL); +} + +// -------- func targa.decoder.set_report_metadata + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_targa__decoder__set_report_metadata( + wuffs_targa__decoder* self, + uint32_t a_fourcc, + bool a_report) { + return wuffs_base__make_empty_struct(); +} + +// -------- func targa.decoder.tell_me_more + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_targa__decoder__tell_me_more( + wuffs_targa__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 4)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; + status = wuffs_base__make_status(wuffs_base__error__no_more_information); + goto exit; + + goto ok; + ok: + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; } + return status; +} - uint32_t coro_susp_point = self->private_impl.p_decode_gama; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; +// -------- func targa.decoder.workbuf_len - if (self->private_impl.f_chunk_length != 4u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_targa__decoder__workbuf_len( + const wuffs_targa__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + return wuffs_base__utility__make_range_ii_u64(0u, 0u); +} + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__TARGA) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__THUMBHASH) + +// ---------------- Status Codes Implementations + +const char wuffs_thumbhash__error__bad_header[] = "#thumbhash: bad header"; +const char wuffs_thumbhash__error__truncated_input[] = "#thumbhash: truncated input"; + +// ---------------- Private Consts + +#define WUFFS_THUMBHASH__QUIRKS_BASE 1712283648u + +static const uint8_t +WUFFS_THUMBHASH__DIMENSIONS_FROM_DIMENSION_CODES[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 14u, 18u, 19u, 23u, 26u, 27u, 32u, +}; + +static const uint8_t +WUFFS_THUMBHASH__CUMULATIVE_DIMENSIONS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 0u, 14u, 32u, 51u, 74u, 100u, 127u, +}; + +static const uint8_t +WUFFS_THUMBHASH__DIMENSION_CODES_FROM_HAS_ALPHA_AND_L_COUNT[2][8] WUFFS_BASE__POTENTIALLY_UNUSED = { + { + 23u, 23u, 23u, 23u, 39u, 71u, 103u, 119u, + }, { + 55u, 55u, 55u, 55u, 87u, 119u, 118u, 116u, + }, +}; + +static const uint16_t +WUFFS_THUMBHASH__FROM_4_BITS_TO_PLUS_MINUS_1_00[16] WUFFS_BASE__POTENTIALLY_UNUSED = { + 49152u, 51337u, 53521u, 55706u, 57890u, 60075u, 62259u, 64444u, + 1092u, 3277u, 5461u, 7646u, 9830u, 12015u, 14199u, 16384u, +}; + +static const uint16_t +WUFFS_THUMBHASH__FROM_4_BITS_TO_PLUS_MINUS_1_25[16] WUFFS_BASE__POTENTIALLY_UNUSED = { + 45056u, 47787u, 50517u, 53248u, 55979u, 58709u, 61440u, 64171u, + 1365u, 4096u, 6827u, 9557u, 12288u, 15019u, 17749u, 20480u, +}; + +static const uint16_t +WUFFS_THUMBHASH__COSINES[159][6] WUFFS_BASE__POTENTIALLY_UNUSED = { + { + 16281u, 15973u, 15465u, 14761u, 13873u, 12810u, + }, { + 15465u, 12810u, 8717u, 3646u, 63702u, 58427u, + }, { + 13873u, 7109u, 63702u, 55321u, 50071u, 49563u, + }, { + 11585u, 0u, 53951u, 49152u, 53951u, 0u, + }, { + 8717u, 58427u, 49255u, 55321u, 5411u, 15973u, + }, { + 5411u, 52726u, 51663u, 3646u, 16281u, 7109u, + }, { + 1834u, 49563u, 60125u, 14761u, 8717u, 52726u, + }, { + 63702u, 49563u, 5411u, 14761u, 56819u, 52726u, + }, + { + 60125u, 52726u, 13873u, 3646u, 49255u, 7109u, + }, { + 56819u, 58427u, 16281u, 55321u, 60125u, 15973u, + }, { + 53951u, 0u, 11585u, 49152u, 11585u, 0u, + }, { + 51663u, 7109u, 1834u, 55321u, 15465u, 49563u, + }, { + 50071u, 12810u, 56819u, 3646u, 1834u, 58427u, + }, { + 49255u, 15973u, 50071u, 14761u, 51663u, 12810u, + }, { + 16322u, 16135u, 15826u, 15396u, 14849u, 14189u, + }, { + 15826u, 14189u, 11585u, 8192u, 4240u, 0u, + }, + { + 14849u, 10531u, 4240u, 62691u, 56139u, 51347u, + }, { + 13421u, 5604u, 61296u, 52985u, 49214u, 51347u, + }, { + 11585u, 0u, 53951u, 49152u, 53951u, 0u, + }, { + 9397u, 59932u, 49710u, 52985u, 1428u, 14189u, + }, { + 6924u, 55005u, 49710u, 62691u, 13421u, 14189u, + }, { + 4240u, 51347u, 53951u, 8192u, 15826u, 0u, + }, { + 1428u, 49401u, 61296u, 15396u, 6924u, 51347u, + }, { + 64108u, 49401u, 4240u, 15396u, 58612u, 51347u, + }, + { + 61296u, 51347u, 11585u, 8192u, 49710u, 0u, + }, { + 58612u, 55005u, 15826u, 62691u, 52115u, 14189u, + }, { + 56139u, 59932u, 15826u, 52985u, 64108u, 14189u, + }, { + 53951u, 0u, 11585u, 49152u, 11585u, 0u, + }, { + 52115u, 5604u, 4240u, 52985u, 16322u, 51347u, + }, { + 50687u, 10531u, 61296u, 62691u, 9397u, 51347u, + }, { + 49710u, 14189u, 53951u, 8192u, 61296u, 0u, + }, { + 49214u, 16135u, 49710u, 15396u, 50687u, 14189u, + }, + { + 16328u, 16161u, 15883u, 15496u, 15004u, 14409u, + }, { + 15883u, 14409u, 12054u, 8961u, 5320u, 1353u, + }, { + 15004u, 11097u, 5320u, 64183u, 57738u, 52607u, + }, { + 13716u, 6581u, 62839u, 54439u, 49653u, 50040u, + }, { + 12054u, 1353u, 55473u, 49375u, 51820u, 61514u, + }, { + 10063u, 61514u, 50532u, 51127u, 62839u, 11097u, + }, { + 7798u, 56575u, 49208u, 58955u, 10063u, 16161u, + }, { + 5320u, 52607u, 51820u, 4022u, 16328u, 6581u, + }, + { + 2697u, 50040u, 57738u, 12929u, 12054u, 56575u, + }, { + 0u, 49152u, 0u, 16384u, 0u, 49152u, + }, { + 62839u, 50040u, 7798u, 12929u, 53482u, 56575u, + }, { + 60216u, 52607u, 13716u, 4022u, 49208u, 6581u, + }, { + 57738u, 56575u, 16328u, 58955u, 55473u, 16161u, + }, { + 55473u, 61514u, 15004u, 51127u, 2697u, 11097u, + }, { + 53482u, 1353u, 10063u, 49375u, 13716u, 61514u, + }, { + 51820u, 6581u, 2697u, 54439u, 15883u, 50040u, + }, + { + 50532u, 11097u, 60216u, 64183u, 7798u, 52607u, + }, { + 49653u, 14409u, 53482u, 8961u, 60216u, 1353u, + }, { + 49208u, 16161u, 49653u, 15496u, 50532u, 14409u, + }, { + 16346u, 16231u, 16041u, 15776u, 15438u, 15028u, + }, { + 16041u, 15028u, 13385u, 11183u, 8513u, 5487u, + }, { + 15438u, 12709u, 8513u, 3333u, 63305u, 57998u, + }, { + 14547u, 9448u, 2231u, 60049u, 53562u, 49760u, + }, { + 13385u, 5487u, 61116u, 52827u, 49190u, 51537u, + }, + { + 11974u, 1118u, 55196u, 49305u, 52151u, 62203u, + }, { + 10340u, 62203u, 50989u, 50508u, 61116u, 9448u, + }, { + 8513u, 57998u, 49190u, 56088u, 6527u, 16231u, + }, { + 6527u, 54353u, 50098u, 64418u, 14547u, 12709u, + }, { + 4420u, 51537u, 53562u, 7538u, 16041u, 1118u, + }, { + 2231u, 49760u, 59009u, 13999u, 10340u, 54353u, + }, { + 0u, 49152u, 0u, 16384u, 0u, 49152u, + }, { + 63305u, 49760u, 6527u, 13999u, 55196u, 54353u, + }, + { + 61116u, 51537u, 11974u, 7538u, 49495u, 1118u, + }, { + 59009u, 54353u, 15438u, 64418u, 50989u, 12709u, + }, { + 57023u, 57998u, 16346u, 56088u, 59009u, 16231u, + }, { + 55196u, 62203u, 14547u, 50508u, 4420u, 9448u, + }, { + 53562u, 1118u, 10340u, 49305u, 13385u, 62203u, + }, { + 52151u, 5487u, 4420u, 52827u, 16346u, 51537u, + }, { + 50989u, 9448u, 63305u, 60049u, 11974u, 49760u, + }, { + 50098u, 12709u, 57023u, 3333u, 2231u, 57998u, + }, + { + 49495u, 15028u, 52151u, 11183u, 57023u, 5487u, + }, { + 49190u, 16231u, 49495u, 15776u, 50098u, 15028u, + }, { + 16354u, 16265u, 16116u, 15908u, 15642u, 15319u, + }, { + 16116u, 15319u, 14021u, 12264u, 10104u, 7614u, + }, { + 15642u, 13484u, 10104u, 5810u, 989u, 61615u, + }, { + 14941u, 10865u, 4874u, 63561u, 57060u, 52052u, + }, { + 14021u, 7614u, 64547u, 56229u, 50595u, 49271u, + }, { + 12897u, 3921u, 58812u, 51029u, 49420u, 54671u, + }, + { + 11585u, 0u, 53951u, 49152u, 53951u, 0u, + }, { + 10104u, 61615u, 50595u, 51029u, 62583u, 10865u, + }, { + 8476u, 57922u, 49182u, 56229u, 6724u, 16265u, + }, { + 6724u, 54671u, 49894u, 63561u, 14021u, 13484u, + }, { + 4874u, 52052u, 52639u, 5810u, 16354u, 3921u, + }, { + 2953u, 50217u, 57060u, 12264u, 12897u, 57922u, + }, { + 989u, 49271u, 62583u, 15908u, 4874u, 50217u, + }, { + 64547u, 49271u, 2953u, 15908u, 60662u, 50217u, + }, + { + 62583u, 50217u, 8476u, 12264u, 52639u, 57922u, + }, { + 60662u, 52052u, 12897u, 5810u, 49182u, 3921u, + }, { + 58812u, 54671u, 15642u, 63561u, 51515u, 13484u, + }, { + 57060u, 57922u, 16354u, 56229u, 58812u, 16265u, + }, { + 55432u, 61615u, 14941u, 51029u, 2953u, 10865u, + }, { + 53951u, 0u, 11585u, 49152u, 11585u, 0u, + }, { + 52639u, 3921u, 6724u, 51029u, 16116u, 54671u, + }, { + 51515u, 7614u, 989u, 56229u, 14941u, 49271u, + }, + { + 50595u, 10865u, 60662u, 63561u, 8476u, 52052u, + }, { + 49894u, 13484u, 55432u, 5810u, 64547u, 61615u, + }, { + 49420u, 15319u, 51515u, 12264u, 55432u, 7614u, + }, { + 49182u, 16265u, 49420u, 15908u, 49894u, 15319u, + }, { + 16356u, 16273u, 16135u, 15942u, 15696u, 15396u, + }, { + 16135u, 15396u, 14189u, 12551u, 10531u, 8192u, + }, { + 15696u, 13689u, 10531u, 6489u, 1902u, 62691u, + }, { + 15044u, 11243u, 5604u, 64583u, 58183u, 52985u, + }, + { + 14189u, 8192u, 0u, 57344u, 51347u, 49152u, + }, { + 13142u, 4699u, 59932u, 51847u, 49180u, 52985u, + }, { + 11917u, 953u, 55005u, 49263u, 52394u, 62691u, + }, { + 10531u, 62691u, 51347u, 50140u, 59932u, 8192u, + }, { + 9003u, 59047u, 49401u, 54293u, 3778u, 15396u, + }, { + 7353u, 55752u, 49401u, 60837u, 11917u, 15396u, + }, { + 5604u, 52985u, 51347u, 2845u, 16135u, 8192u, + }, { + 3778u, 50895u, 55005u, 9784u, 15044u, 62691u, + }, + { + 1902u, 49594u, 59932u, 14641u, 9003u, 52985u, + }, { + 0u, 49152u, 0u, 16384u, 0u, 49152u, + }, { + 63634u, 49594u, 5604u, 14641u, 56533u, 52985u, + }, { + 61758u, 50895u, 10531u, 9784u, 50492u, 62691u, + }, { + 59932u, 52985u, 14189u, 2845u, 49401u, 8192u, + }, { + 58183u, 55752u, 16135u, 60837u, 53619u, 15396u, + }, { + 56533u, 59047u, 16135u, 54293u, 61758u, 15396u, + }, { + 55005u, 62691u, 14189u, 50140u, 5604u, 8192u, + }, + { + 53619u, 953u, 10531u, 49263u, 13142u, 62691u, + }, { + 52394u, 4699u, 5604u, 51847u, 16356u, 52985u, + }, { + 51347u, 8192u, 0u, 57344u, 14189u, 49152u, + }, { + 50492u, 11243u, 59932u, 64583u, 7353u, 52985u, + }, { + 49840u, 13689u, 55005u, 6489u, 63634u, 62691u, + }, { + 49401u, 15396u, 51347u, 12551u, 55005u, 8192u, + }, { + 49180u, 16273u, 49401u, 15942u, 49840u, 15396u, + }, { + 16364u, 16305u, 16207u, 16069u, 15893u, 15679u, + }, + { + 16207u, 15679u, 14811u, 13623u, 12140u, 10394u, + }, { + 15893u, 14449u, 12140u, 9102u, 5520u, 1606u, + }, { + 15426u, 12665u, 8423u, 3196u, 63132u, 57813u, + }, { + 14811u, 10394u, 3981u, 62340u, 55776u, 51087u, + }, { + 14053u, 7723u, 64732u, 56434u, 50725u, 49231u, + }, { + 13160u, 4756u, 60016u, 51913u, 49172u, 52871u, + }, { + 12140u, 1606u, 55776u, 49467u, 51483u, 60780u, + }, { + 11003u, 63930u, 52376u, 49467u, 57113u, 4756u, + }, + { + 9760u, 60780u, 50110u, 51913u, 64732u, 12665u, + }, { + 8423u, 57813u, 49172u, 56434u, 7005u, 16305u, + }, { + 7005u, 55142u, 49643u, 62340u, 13160u, 14449u, + }, { + 5520u, 52871u, 51483u, 3196u, 16207u, 7723u, + }, { + 3981u, 51087u, 54533u, 9102u, 15426u, 63930u, + }, { + 2404u, 49857u, 58531u, 13623u, 11003u, 55142u, + }, { + 804u, 49231u, 63132u, 16069u, 3981u, 49857u, + }, { + 64732u, 49231u, 2404u, 16069u, 61555u, 49857u, + }, + { + 63132u, 49857u, 7005u, 13623u, 54533u, 55142u, + }, { + 61555u, 51087u, 11003u, 9102u, 50110u, 63930u, + }, { + 60016u, 52871u, 14053u, 3196u, 49329u, 7723u, + }, { + 58531u, 55142u, 15893u, 62340u, 52376u, 14449u, + }, { + 57113u, 57813u, 16364u, 56434u, 58531u, 16305u, + }, { + 55776u, 60780u, 15426u, 51913u, 804u, 12665u, + }, { + 54533u, 63930u, 13160u, 49467u, 8423u, 4756u, + }, { + 53396u, 1606u, 9760u, 49467u, 14053u, 60780u, + }, + { + 52376u, 4756u, 5520u, 51913u, 16364u, 52871u, + }, { + 51483u, 7723u, 804u, 56434u, 14811u, 49231u, + }, { + 50725u, 10394u, 61555u, 62340u, 9760u, 51087u, + }, { + 50110u, 12665u, 57113u, 3196u, 2404u, 57813u, + }, { + 49643u, 14449u, 53396u, 9102u, 60016u, 1606u, + }, { + 49329u, 15679u, 50725u, 13623u, 53396u, 10394u, + }, { + 49172u, 16305u, 49329u, 16069u, 49643u, 15679u, + }, +}; + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_thumbhash__decoder__do_decode_image_config( + wuffs_thumbhash__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_thumbhash__decoder__do_decode_frame_config( + wuffs_thumbhash__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_thumbhash__decoder__do_decode_frame( + wuffs_thumbhash__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_thumbhash__decoder__from_src_to_coeffs( + wuffs_thumbhash__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_thumbhash__decoder__from_coeffs_to_pixels( + wuffs_thumbhash__decoder* self); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_thumbhash__decoder__from_pixels_to_dst( + wuffs_thumbhash__decoder* self, + wuffs_base__pixel_buffer* a_dst); + +// ---------------- VTables + +const wuffs_base__image_decoder__func_ptrs +wuffs_thumbhash__decoder__func_ptrs_for__wuffs_base__image_decoder = { + (wuffs_base__status(*)(void*, + wuffs_base__pixel_buffer*, + wuffs_base__io_buffer*, + wuffs_base__pixel_blend, + wuffs_base__slice_u8, + wuffs_base__decode_frame_options*))(&wuffs_thumbhash__decoder__decode_frame), + (wuffs_base__status(*)(void*, + wuffs_base__frame_config*, + wuffs_base__io_buffer*))(&wuffs_thumbhash__decoder__decode_frame_config), + (wuffs_base__status(*)(void*, + wuffs_base__image_config*, + wuffs_base__io_buffer*))(&wuffs_thumbhash__decoder__decode_image_config), + (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_thumbhash__decoder__frame_dirty_rect), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_thumbhash__decoder__get_quirk), + (uint32_t(*)(const void*))(&wuffs_thumbhash__decoder__num_animation_loops), + (uint64_t(*)(const void*))(&wuffs_thumbhash__decoder__num_decoded_frame_configs), + (uint64_t(*)(const void*))(&wuffs_thumbhash__decoder__num_decoded_frames), + (wuffs_base__status(*)(void*, + uint64_t, + uint64_t))(&wuffs_thumbhash__decoder__restart_frame), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_thumbhash__decoder__set_quirk), + (wuffs_base__empty_struct(*)(void*, + uint32_t, + bool))(&wuffs_thumbhash__decoder__set_report_metadata), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__more_information*, + wuffs_base__io_buffer*))(&wuffs_thumbhash__decoder__tell_me_more), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_thumbhash__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_thumbhash__decoder__initialize( + wuffs_thumbhash__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); } - self->private_impl.f_chunk_length = 0u; - self->private_impl.f_metadata_flavor = 5u; - self->private_impl.f_metadata_fourcc = 1195461953u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint64_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_0 = ((uint64_t)(wuffs_base__peek_u32be__no_bounds_check(iop_a_src))); - iop_a_src += 4; - } else { - self->private_data.s_decode_gama.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_gama.scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); - if (num_bits_0 == 24) { - t_0 = ((uint64_t)(*scratch >> 32)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); - } - } - self->private_impl.f_metadata_x = t_0; +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); } - self->private_impl.f_metadata_y = 0u; - self->private_impl.f_metadata_z = 0u; + } - goto ok; - ok: - self->private_impl.p_decode_gama = 0; - goto exit; + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = + wuffs_base__image_decoder__vtable_name; + self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = + (const void*)(&wuffs_thumbhash__decoder__func_ptrs_for__wuffs_base__image_decoder); + return wuffs_base__make_status(NULL); +} + +wuffs_thumbhash__decoder* +wuffs_thumbhash__decoder__alloc(void) { + wuffs_thumbhash__decoder* x = + (wuffs_thumbhash__decoder*)(calloc(1, sizeof(wuffs_thumbhash__decoder))); + if (!x) { + return NULL; } + if (wuffs_thumbhash__decoder__initialize( + x, sizeof(wuffs_thumbhash__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} - goto suspend; - suspend: - self->private_impl.p_decode_gama = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; +size_t +sizeof__wuffs_thumbhash__decoder(void) { + return sizeof(wuffs_thumbhash__decoder); +} - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); +// ---------------- Function Implementations + +// -------- func thumbhash.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_thumbhash__decoder__get_quirk( + const wuffs_thumbhash__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - return status; + if ((a_key == 1712283648u) && self->private_impl.f_quirk_just_raw_thumbhash) { + return 1u; + } + return 0u; } -// -------- func png.decoder.decode_iccp +// -------- func thumbhash.decoder.set_quirk WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_iccp( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_thumbhash__decoder__set_quirk( + wuffs_thumbhash__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } - uint8_t v_c = 0; + if (a_key == 1712283648u) { + self->private_impl.f_quirk_just_raw_thumbhash = (a_value > 0u); + return wuffs_base__make_status(NULL); + } + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; +// -------- func thumbhash.decoder.decode_image_config + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_thumbhash__decoder__decode_image_config( + wuffs_thumbhash__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_decode_iccp; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_image_config; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; while (true) { - if (self->private_impl.f_chunk_length <= 0u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_length -= 1u; { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_0 = *iop_a_src++; - v_c = t_0; - } - if (v_c == 0u) { - break; + wuffs_base__status t_0 = wuffs_thumbhash__decoder__do_decode_image_config(self, a_dst, a_src); + v_status = t_0; } - } - if (self->private_impl.f_chunk_length <= 0u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_length -= 1u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_thumbhash__error__truncated_input); + goto exit; } - uint8_t t_1 = *iop_a_src++; - v_c = t_1; - } - if (v_c != 0u) { - status = wuffs_base__make_status(wuffs_png__error__unsupported_png_compression_method); - goto exit; + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } - self->private_impl.f_metadata_is_zlib_compressed = true; - self->private_impl.f_metadata_flavor = 4u; - self->private_impl.f_metadata_fourcc = 1229144912u; - self->private_impl.f_metadata_x = 0u; - self->private_impl.f_metadata_y = 0u; - self->private_impl.f_metadata_z = 0u; - goto ok; ok: - self->private_impl.p_decode_iccp = 0; + self->private_impl.p_decode_image_config = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_iccp = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; goto exit; exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; } - return status; } -// -------- func png.decoder.decode_plte +// -------- func thumbhash.decoder.do_decode_image_config WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__decode_plte( - wuffs_png__decoder* self, +wuffs_thumbhash__decoder__do_decode_image_config( + wuffs_thumbhash__decoder* self, + wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t v_num_entries = 0; - uint32_t v_i = 0; - uint32_t v_argb = 0; + uint32_t v_c32 = 0; + uint8_t v_swap = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -60017,76 +74835,180 @@ wuffs_png__decoder__decode_plte( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_plte; - if (coro_susp_point) { - v_num_entries = self->private_data.s_decode_plte.v_num_entries; - v_i = self->private_data.s_decode_plte.v_i; - } + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if ((self->private_impl.f_chunk_length > 768u) || ((self->private_impl.f_chunk_length % 3u) != 0u)) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + if (self->private_impl.f_call_sequence != 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); goto exit; } - v_num_entries = (((uint32_t)(self->private_impl.f_chunk_length)) / 3u); - self->private_impl.f_chunk_length = 0u; - while (v_i < v_num_entries) { + if ( ! self->private_impl.f_quirk_just_raw_thumbhash) { { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); uint32_t t_0; if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 3)) { - t_0 = ((uint32_t)(wuffs_base__peek_u24be__no_bounds_check(iop_a_src))); + t_0 = ((uint32_t)(wuffs_base__peek_u24le__no_bounds_check(iop_a_src))); iop_a_src += 3; } else { - self->private_data.s_decode_plte.scratch = 0; + self->private_data.s_do_decode_image_config.scratch = 0; WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_decode_plte.scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; if (num_bits_0 == 16) { - t_0 = ((uint32_t)(*scratch >> 40)); + t_0 = ((uint32_t)(*scratch)); break; } num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); + *scratch |= ((uint64_t)(num_bits_0)) << 56; } } - v_argb = t_0; + v_c32 = t_0; + } + if (v_c32 != 16694979u) { + status = wuffs_base__make_status(wuffs_thumbhash__error__bad_header); + goto exit; } - v_argb |= 4278190080u; - self->private_data.f_src_palette[((4u * v_i) + 0u)] = ((uint8_t)((v_argb >> 0u))); - self->private_data.f_src_palette[((4u * v_i) + 1u)] = ((uint8_t)((v_argb >> 8u))); - self->private_data.f_src_palette[((4u * v_i) + 2u)] = ((uint8_t)((v_argb >> 16u))); - self->private_data.f_src_palette[((4u * v_i) + 3u)] = ((uint8_t)((v_argb >> 24u))); - v_i += 1u; } - while (v_i < 256u) { - self->private_data.f_src_palette[((4u * v_i) + 0u)] = 0u; - self->private_data.f_src_palette[((4u * v_i) + 1u)] = 0u; - self->private_data.f_src_palette[((4u * v_i) + 2u)] = 0u; - self->private_data.f_src_palette[((4u * v_i) + 3u)] = 255u; - v_i += 1u; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 3)) { + t_1 = ((uint32_t)(wuffs_base__peek_u24le__no_bounds_check(iop_a_src))); + iop_a_src += 3; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 16) { + t_1 = ((uint32_t)(*scratch)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; + } + } + v_c32 = t_1; + } + self->private_impl.f_l_dc = (((uint64_t)(((v_c32 >> 0u) & 63u))) * 136339441844224u); + self->private_impl.f_p_dc = ((uint64_t)((((uint64_t)(((v_c32 >> 6u) & 63u))) * 272678883688448u) - 8589384836186112u)); + self->private_impl.f_q_dc = ((uint64_t)((((uint64_t)(((v_c32 >> 12u) & 63u))) * 272678883688448u) - 8589384836186112u)); + self->private_impl.f_l_scale = ((uint8_t)(((v_c32 >> 18u) & 31u))); + self->private_impl.f_has_alpha = ((uint8_t)(((v_c32 >> 23u) & 1u))); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + uint32_t t_2; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_2 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; + if (num_bits_2 == 8) { + t_2 = ((uint32_t)(*scratch)); + break; + } + num_bits_2 += 8u; + *scratch |= ((uint64_t)(num_bits_2)) << 56; + } + } + v_c32 = t_2; } + self->private_impl.f_l_count = ((uint8_t)(((v_c32 >> 0u) & 7u))); + self->private_impl.f_p_scale = ((uint8_t)(((v_c32 >> 3u) & 63u))); + self->private_impl.f_q_scale = ((uint8_t)(((v_c32 >> 9u) & 63u))); + self->private_impl.f_is_landscape = ((uint8_t)(((v_c32 >> 15u) & 1u))); + self->private_impl.f_w_dimension_code = ((uint8_t)(((uint8_t)(WUFFS_THUMBHASH__DIMENSION_CODES_FROM_HAS_ALPHA_AND_L_COUNT[self->private_impl.f_has_alpha][self->private_impl.f_l_count] >> 4u)) & 7u)); + self->private_impl.f_h_dimension_code = ((uint8_t)(((uint8_t)(WUFFS_THUMBHASH__DIMENSION_CODES_FROM_HAS_ALPHA_AND_L_COUNT[self->private_impl.f_has_alpha][self->private_impl.f_l_count] >> 0u)) & 7u)); + if (self->private_impl.f_is_landscape != 0u) { + v_swap = self->private_impl.f_w_dimension_code; + self->private_impl.f_w_dimension_code = self->private_impl.f_h_dimension_code; + self->private_impl.f_h_dimension_code = v_swap; + } + if (self->private_impl.f_is_landscape != 0u) { + self->private_impl.f_lx = ((uint32_t)(((uint8_t)(7u - ((uint8_t)(2u * self->private_impl.f_has_alpha)))))); + self->private_impl.f_ly = ((uint32_t)(wuffs_base__u8__max(self->private_impl.f_l_count, 3u))); + } else { + self->private_impl.f_lx = ((uint32_t)(wuffs_base__u8__max(self->private_impl.f_l_count, 3u))); + self->private_impl.f_ly = ((uint32_t)(((uint8_t)(7u - ((uint8_t)(2u * self->private_impl.f_has_alpha)))))); + } + self->private_impl.f_frame_config_io_position = 8u; + if (self->private_impl.f_has_alpha != 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint32_t t_3 = *iop_a_src++; + v_c32 = t_3; + } + self->private_impl.f_a_dc = (((uint64_t)(((v_c32 >> 0u) & 15u))) << 42u); + self->private_impl.f_a_scale = ((uint8_t)(((v_c32 >> 4u) & 15u))); + self->private_impl.f_frame_config_io_position = 9u; + } + if (self->private_impl.f_quirk_just_raw_thumbhash) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + self->private_impl.f_frame_config_io_position -= 3u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } + self->private_impl.f_pixfmt = 2415954056u; + if (self->private_impl.f_has_alpha != 0u) { + self->private_impl.f_pixfmt = 2164295816u; + } + if (a_dst != NULL) { + wuffs_base__image_config__set( + a_dst, + self->private_impl.f_pixfmt, + 0u, + ((uint32_t)(WUFFS_THUMBHASH__DIMENSIONS_FROM_DIMENSION_CODES[self->private_impl.f_w_dimension_code])), + ((uint32_t)(WUFFS_THUMBHASH__DIMENSIONS_FROM_DIMENSION_CODES[self->private_impl.f_h_dimension_code])), + ((uint64_t)(self->private_impl.f_frame_config_io_position)), + (self->private_impl.f_has_alpha == 0u)); + } + self->private_impl.f_call_sequence = 32u; goto ok; ok: - self->private_impl.p_decode_plte = 0; + self->private_impl.p_do_decode_image_config = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_plte = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_plte.v_num_entries = v_num_entries; - self->private_data.s_decode_plte.v_i = v_i; + self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: @@ -60097,81 +75019,82 @@ wuffs_png__decoder__decode_plte( return status; } -// -------- func png.decoder.decode_srgb +// -------- func thumbhash.decoder.decode_frame_config WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__decode_srgb( - wuffs_png__decoder* self, +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_thumbhash__decoder__decode_frame_config( + wuffs_thumbhash__decoder* self, + wuffs_base__frame_config* a_dst, wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 2)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } + wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_decode_srgb; + uint32_t coro_susp_point = self->private_impl.p_decode_frame_config; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_chunk_length != 1u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_length = 0u; - self->private_impl.f_metadata_flavor = 5u; - self->private_impl.f_metadata_fourcc = 1397901122u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + while (true) { + { + wuffs_base__status t_0 = wuffs_thumbhash__decoder__do_decode_frame_config(self, a_dst, a_src); + v_status = t_0; } - uint64_t t_0 = *iop_a_src++; - self->private_impl.f_metadata_x = t_0; + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_thumbhash__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } - self->private_impl.f_metadata_y = 0u; - self->private_impl.f_metadata_z = 0u; - goto ok; ok: - self->private_impl.p_decode_srgb = 0; + self->private_impl.p_decode_frame_config = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_srgb = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; goto exit; exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; } - return status; } -// -------- func png.decoder.decode_trns +// -------- func thumbhash.decoder.do_decode_frame_config WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__decode_trns( - wuffs_png__decoder* self, +wuffs_thumbhash__decoder__do_decode_frame_config( + wuffs_thumbhash__decoder* self, + wuffs_base__frame_config* a_dst, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t v_i = 0; - uint32_t v_n = 0; - uint64_t v_u = 0; - const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -60183,158 +75106,62 @@ wuffs_png__decoder__decode_trns( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_trns; - if (coro_susp_point) { - v_i = self->private_data.s_decode_trns.v_i; - v_n = self->private_data.s_decode_trns.v_n; - } + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_color_type == 0u) { - self->private_impl.choosy_filter_and_swizzle = ( - &wuffs_png__decoder__filter_and_swizzle_tricky); - if (self->private_impl.f_depth <= 8u) { - self->private_impl.f_dst_pixfmt = 2164295816u; - self->private_impl.f_src_pixfmt = 2164295816u; - } else { - self->private_impl.f_dst_pixfmt = 2164308923u; - self->private_impl.f_src_pixfmt = 2164308923u; - } - if (self->private_impl.f_chunk_length != 2u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_length = 0u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint64_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_0 = ((uint64_t)(wuffs_base__peek_u16be__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_decode_trns.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_trns.scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); - if (num_bits_0 == 8) { - t_0 = ((uint64_t)(*scratch >> 48)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); - } - } - v_u = t_0; - } - if (self->private_impl.f_depth <= 1u) { - self->private_impl.f_remap_transparency = (((v_u & 1u) * 16777215u) | 4278190080u); - } else if (self->private_impl.f_depth <= 2u) { - self->private_impl.f_remap_transparency = (((v_u & 3u) * 5592405u) | 4278190080u); - } else if (self->private_impl.f_depth <= 4u) { - self->private_impl.f_remap_transparency = (((v_u & 15u) * 1118481u) | 4278190080u); - } else if (self->private_impl.f_depth <= 8u) { - self->private_impl.f_remap_transparency = (((v_u & 255u) * 65793u) | 4278190080u); - } else { - self->private_impl.f_remap_transparency = ((v_u * 4295032833u) | 18446462598732840960u); - } - } else if (self->private_impl.f_color_type == 2u) { - self->private_impl.choosy_filter_and_swizzle = ( - &wuffs_png__decoder__filter_and_swizzle_tricky); - if (self->private_impl.f_depth <= 8u) { - self->private_impl.f_dst_pixfmt = 2164295816u; - self->private_impl.f_src_pixfmt = 2164295816u; - } else { - self->private_impl.f_dst_pixfmt = 2164308923u; - self->private_impl.f_src_pixfmt = 2164308923u; - } - if (self->private_impl.f_chunk_length != 6u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; + if (self->private_impl.f_call_sequence == 32u) { + } else if (self->private_impl.f_call_sequence < 32u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - self->private_impl.f_chunk_length = 0u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint64_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 6)) { - t_1 = ((uint64_t)(wuffs_base__peek_u48be__no_bounds_check(iop_a_src))); - iop_a_src += 6; - } else { - self->private_data.s_decode_trns.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_trns.scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); - if (num_bits_1 == 40) { - t_1 = ((uint64_t)(*scratch >> 16)); - break; - } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)); - } - } - v_u = t_1; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_thumbhash__decoder__do_decode_image_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; } - if (self->private_impl.f_depth <= 8u) { - self->private_impl.f_remap_transparency = ((255u & (v_u >> 0u)) | - (65280u & (v_u >> 8u)) | - (16711680u & (v_u >> 16u)) | - 4278190080u); - } else { - self->private_impl.f_remap_transparency = (v_u | 18446462598732840960u); + if (status.repr) { + goto suspend; } - } else if (self->private_impl.f_color_type == 3u) { - self->private_impl.f_dst_pixfmt = 2164523016u; - self->private_impl.f_src_pixfmt = 2164523016u; - if (self->private_impl.f_chunk_length > 256u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + } else if (self->private_impl.f_call_sequence == 40u) { + if (((uint64_t)(self->private_impl.f_frame_config_io_position)) != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_restart); goto exit; } - v_n = ((uint32_t)(self->private_impl.f_chunk_length)); - self->private_impl.f_chunk_length = 0u; - while (v_i < v_n) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_2 = *iop_a_src++; - self->private_data.f_src_palette[((4u * v_i) + 3u)] = t_2; - } - v_i += 1u; - } + } else if (self->private_impl.f_call_sequence == 64u) { + self->private_impl.f_call_sequence = 96u; + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; } else { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + if (a_dst != NULL) { + wuffs_base__frame_config__set( + a_dst, + wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + ((uint32_t)(WUFFS_THUMBHASH__DIMENSIONS_FROM_DIMENSION_CODES[self->private_impl.f_w_dimension_code])), + ((uint32_t)(WUFFS_THUMBHASH__DIMENSIONS_FROM_DIMENSION_CODES[self->private_impl.f_h_dimension_code]))), + ((wuffs_base__flicks)(0u)), + 0u, + ((uint64_t)(self->private_impl.f_frame_config_io_position)), + 0u, + (self->private_impl.f_has_alpha == 0u), + false, + 0u); } + self->private_impl.f_call_sequence = 64u; - goto ok; ok: - self->private_impl.p_decode_trns = 0; + self->private_impl.p_do_decode_frame_config = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_trns = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_trns.v_i = v_i; - self->private_data.s_decode_trns.v_n = v_n; + self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: @@ -60345,14 +75172,17 @@ wuffs_png__decoder__decode_trns( return status; } -// -------- func png.decoder.decode_frame_config +// -------- func thumbhash.decoder.decode_frame WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_png__decoder__decode_frame_config( - wuffs_png__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src) { +wuffs_thumbhash__decoder__decode_frame( + wuffs_thumbhash__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { if (!self) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); } @@ -60362,12 +75192,12 @@ wuffs_png__decoder__decode_frame_config( ? wuffs_base__error__disabled_by_previous_error : wuffs_base__error__initialize_not_called); } - if (!a_src) { + if (!a_dst || !a_src) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__bad_argument); } if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 2)) { + (self->private_impl.active_coroutine != 3)) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } @@ -60376,17 +75206,22 @@ wuffs_png__decoder__decode_frame_config( wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_decode_frame_config; + uint32_t coro_susp_point = self->private_impl.p_decode_frame; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; while (true) { { - wuffs_base__status t_0 = wuffs_png__decoder__do_decode_frame_config(self, a_dst, a_src); + wuffs_base__status t_0 = wuffs_thumbhash__decoder__do_decode_frame(self, + a_dst, + a_src, + a_blend, + a_workbuf, + a_opts); v_status = t_0; } if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_png__error__truncated_input); + status = wuffs_base__make_status(wuffs_thumbhash__error__truncated_input); goto exit; } status = v_status; @@ -60394,14 +75229,14 @@ wuffs_png__decoder__decode_frame_config( } ok: - self->private_impl.p_decode_frame_config = 0; + self->private_impl.p_decode_frame = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; + self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; goto exit; exit: @@ -60411,63 +75246,29 @@ wuffs_png__decoder__decode_frame_config( return status; } -// -------- func png.decoder.do_decode_frame_config +// -------- func thumbhash.decoder.do_decode_frame WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__do_decode_frame_config( - wuffs_png__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src) { +wuffs_thumbhash__decoder__do_decode_frame( + wuffs_thumbhash__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t v_checksum_have = 0; - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } + wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config; + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (((uint8_t)(self->private_impl.f_call_sequence & 16u)) != 0u) { - status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - goto exit; - } else if (self->private_impl.f_call_sequence == 32u) { - } else if (self->private_impl.f_call_sequence < 32u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } + if (self->private_impl.f_call_sequence == 64u) { + } else if (self->private_impl.f_call_sequence < 64u) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_png__decoder__do_decode_image_config(self, NULL, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - } else if (self->private_impl.f_call_sequence == 40u) { - if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { - status = wuffs_base__make_status(wuffs_base__error__bad_restart); - goto exit; - } - } else if (self->private_impl.f_call_sequence == 64u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - status = wuffs_png__decoder__skip_frame(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } + status = wuffs_thumbhash__decoder__do_decode_frame_config(self, NULL, a_src); if (status.repr) { goto suspend; } @@ -60475,223 +75276,69 @@ wuffs_png__decoder__do_decode_frame_config( status = wuffs_base__make_status(wuffs_base__note__end_of_data); goto ok; } - if (self->private_impl.f_metadata_fourcc != 0u) { - self->private_impl.f_call_sequence = 48u; - status = wuffs_base__make_status(wuffs_base__note__metadata_reported); + v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, + wuffs_base__pixel_buffer__pixel_format(a_dst), + wuffs_base__pixel_buffer__palette(a_dst), + wuffs_base__utility__make_pixel_format(self->private_impl.f_pixfmt), + wuffs_base__utility__empty_slice_u8(), + a_blend); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } goto ok; } - if (self->private_impl.f_num_decoded_frame_configs_value == 0u) { - self->private_impl.f_frame_rect_x0 = self->private_impl.f_first_rect_x0; - self->private_impl.f_frame_rect_y0 = self->private_impl.f_first_rect_y0; - self->private_impl.f_frame_rect_x1 = self->private_impl.f_first_rect_x1; - self->private_impl.f_frame_rect_y1 = self->private_impl.f_first_rect_y1; - self->private_impl.f_frame_config_io_position = self->private_impl.f_first_config_io_position; - self->private_impl.f_frame_duration = self->private_impl.f_first_duration; - self->private_impl.f_frame_disposal = self->private_impl.f_first_disposal; - self->private_impl.f_frame_overwrite_instead_of_blend = self->private_impl.f_first_overwrite_instead_of_blend; - } else { - while (true) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint32_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_frame_config.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_frame_config.scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); - if (num_bits_0 == 24) { - t_0 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); - } - } - self->private_impl.f_chunk_length = t_0; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - uint32_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_1 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_frame_config.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_frame_config.scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; - if (num_bits_1 == 24) { - t_1 = ((uint32_t)(*scratch)); - break; - } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)) << 56; - } - } - self->private_impl.f_chunk_type = t_1; - } - if (self->private_impl.f_chunk_type == 1145980233u) { - if (self->private_impl.f_chunk_length != 0u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - uint32_t t_2; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_2 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_frame_config.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_frame_config.scratch; - uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; - if (num_bits_2 == 24) { - t_2 = ((uint32_t)(*scratch)); - break; - } - num_bits_2 += 8u; - *scratch |= ((uint64_t)(num_bits_2)) << 56; - } - } - v_checksum_have = t_2; - } - if ( ! self->private_impl.f_ignore_checksum && (v_checksum_have != 2187346606u)) { - status = wuffs_base__make_status(wuffs_png__error__bad_checksum); - goto exit; - } - self->private_impl.f_call_sequence = 96u; - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } else if (self->private_impl.f_chunk_type == 1413571686u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } else if (self->private_impl.f_chunk_type == 1280598886u) { - self->private_impl.f_frame_config_io_position = ((uint64_t)(wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))) - 8u)); - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - status = wuffs_png__decoder__decode_fctl(self, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - self->private_data.s_do_decode_frame_config.scratch = 4u; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); - if (self->private_data.s_do_decode_frame_config.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_decode_frame_config.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_do_decode_frame_config.scratch; - break; - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); - status = wuffs_png__decoder__decode_other_chunk(self, a_src, true); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - if (self->private_impl.f_metadata_fourcc != 0u) { - self->private_impl.f_call_sequence = 48u; - status = wuffs_base__make_status(wuffs_base__note__metadata_reported); - goto ok; - } - self->private_data.s_do_decode_frame_config.scratch = 4u; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); - if (self->private_data.s_do_decode_frame_config.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_decode_frame_config.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_do_decode_frame_config.scratch; - self->private_impl.f_chunk_length = 0u; - } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + status = wuffs_thumbhash__decoder__from_src_to_coeffs(self, a_src); + if (status.repr) { + goto suspend; } - if (a_dst != NULL) { - wuffs_base__frame_config__set( - a_dst, - wuffs_base__utility__make_rect_ie_u32( - self->private_impl.f_frame_rect_x0, - self->private_impl.f_frame_rect_y0, - self->private_impl.f_frame_rect_x1, - self->private_impl.f_frame_rect_y1), - ((wuffs_base__flicks)(self->private_impl.f_frame_duration)), - ((uint64_t)(self->private_impl.f_num_decoded_frame_configs_value)), - self->private_impl.f_frame_config_io_position, - self->private_impl.f_frame_disposal, - ((self->private_impl.f_color_type <= 3u) && ! self->private_impl.f_seen_trns), - self->private_impl.f_frame_overwrite_instead_of_blend, - 0u); + wuffs_thumbhash__decoder__from_coeffs_to_pixels(self); + v_status = wuffs_thumbhash__decoder__from_pixels_to_dst(self, a_dst); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; } - wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_num_decoded_frame_configs_value, 1u); - self->private_impl.f_call_sequence = 64u; + self->private_impl.f_call_sequence = 96u; ok: - self->private_impl.p_do_decode_frame_config = 0; + self->private_impl.p_do_decode_frame = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - return status; } -// -------- func png.decoder.skip_frame +// -------- func thumbhash.decoder.from_src_to_coeffs WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__skip_frame( - wuffs_png__decoder* self, +wuffs_thumbhash__decoder__from_src_to_coeffs( + wuffs_thumbhash__decoder* self, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t v_seq_num = 0; + uint8_t v_c8 = 0; + uint32_t v_cy = 0; + uint32_t v_cx = 0; + uint32_t v_i = 0; + bool v_has_bits = false; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -60704,122 +75351,156 @@ wuffs_png__decoder__skip_frame( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_skip_frame; + uint32_t coro_susp_point = self->private_impl.p_from_src_to_coeffs; + if (coro_susp_point) { + v_cy = self->private_data.s_from_src_to_coeffs.v_cy; + v_cx = self->private_data.s_from_src_to_coeffs.v_cx; + v_i = self->private_data.s_from_src_to_coeffs.v_i; + v_has_bits = self->private_data.s_from_src_to_coeffs.v_has_bits; + } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - self->private_impl.f_chunk_type_array[0u] = 0u; - self->private_impl.f_chunk_type_array[1u] = 0u; - self->private_impl.f_chunk_type_array[2u] = 0u; - self->private_impl.f_chunk_type_array[3u] = 0u; - while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 8u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - continue; - } - self->private_impl.f_chunk_length = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - self->private_impl.f_chunk_type = ((uint32_t)((wuffs_base__peek_u64le__no_bounds_check(iop_a_src) >> 32u))); - if (self->private_impl.f_chunk_type == 1413563465u) { - if (self->private_impl.f_chunk_type_array[0u] == 102u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_type_array[0u] = 73u; - self->private_impl.f_chunk_type_array[1u] = 68u; - self->private_impl.f_chunk_type_array[2u] = 65u; - self->private_impl.f_chunk_type_array[3u] = 84u; - } else if (self->private_impl.f_chunk_type == 1413571686u) { - if (self->private_impl.f_chunk_type_array[0u] == 73u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_type_array[0u] = 102u; - self->private_impl.f_chunk_type_array[1u] = 100u; - self->private_impl.f_chunk_type_array[2u] = 65u; - self->private_impl.f_chunk_type_array[3u] = 84u; - if (self->private_impl.f_chunk_length < 4u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; + v_i = 0u; + v_cy = 0u; + while (v_cy < self->private_impl.f_ly) { + v_cx = 0u; + if (v_cy == 0u) { + v_cx = 1u; + } + while (((uint32_t)(v_cx * self->private_impl.f_ly)) < ((uint32_t)(self->private_impl.f_lx * ((uint32_t)(self->private_impl.f_ly - v_cy))))) { + if (v_has_bits) { + v_has_bits = false; +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_c8 >>= 4u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + v_has_bits = true; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } } - self->private_impl.f_chunk_length -= 4u; - iop_a_src += 8u; + self->private_data.f_lac[(v_i & 31u)] = ((uint32_t)(((uint32_t)(((uint32_t)(self->private_impl.f_l_scale)) * 126u)) * wuffs_base__utility__sign_extend_convert_u16_u32(WUFFS_THUMBHASH__FROM_4_BITS_TO_PLUS_MINUS_1_00[((uint8_t)(v_c8 & 15u))]))); + v_i += 1u; + v_cx += 1u; + } + v_cy += 1u; + } + v_i = 0u; + v_cx = 0u; + while (v_cx < 5u) { + if (v_has_bits) { + v_has_bits = false; +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_c8 >>= 4u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + v_has_bits = true; { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - uint32_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_skip_frame.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_skip_frame.scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); - if (num_bits_0 == 24) { - t_0 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); - } + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - v_seq_num = t_0; - } - if (v_seq_num != self->private_impl.f_next_animation_seq_num) { - status = wuffs_base__make_status(wuffs_png__error__bad_animation_sequence_number); - goto exit; - } else if (self->private_impl.f_next_animation_seq_num >= 4294967295u) { - status = wuffs_base__make_status(wuffs_png__error__unsupported_png_file); - goto exit; - } - self->private_impl.f_next_animation_seq_num += 1u; - self->private_data.s_skip_frame.scratch = (((uint64_t)(self->private_impl.f_chunk_length)) + 4u); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - if (self->private_data.s_skip_frame.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_skip_frame.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; } - iop_a_src += self->private_data.s_skip_frame.scratch; - self->private_impl.f_chunk_length = 0u; - continue; - } else if (self->private_impl.f_chunk_type_array[0u] != 0u) { - break; - } else if (self->private_impl.f_chunk_type == 1280598886u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; } - self->private_data.s_skip_frame.scratch = (((uint64_t)(self->private_impl.f_chunk_length)) + 12u); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - if (self->private_data.s_skip_frame.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_skip_frame.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + self->private_data.f_pac[(v_i & 7u)] = ((uint32_t)(((uint32_t)(((uint32_t)(self->private_impl.f_p_scale)) * 62u)) * wuffs_base__utility__sign_extend_convert_u16_u32(WUFFS_THUMBHASH__FROM_4_BITS_TO_PLUS_MINUS_1_25[((uint8_t)(v_c8 & 15u))]))); + v_i += 1u; + v_cx += 1u; + } + v_i = 0u; + v_cx = 0u; + while (v_cx < 5u) { + if (v_has_bits) { + v_has_bits = false; +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_c8 >>= 4u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + v_has_bits = true; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; + } } - iop_a_src += self->private_data.s_skip_frame.scratch; - self->private_impl.f_chunk_length = 0u; + self->private_data.f_qac[(v_i & 7u)] = ((uint32_t)(((uint32_t)(((uint32_t)(self->private_impl.f_q_scale)) * 62u)) * wuffs_base__utility__sign_extend_convert_u16_u32(WUFFS_THUMBHASH__FROM_4_BITS_TO_PLUS_MINUS_1_25[((uint8_t)(v_c8 & 15u))]))); + v_i += 1u; + v_cx += 1u; + } + if (self->private_impl.f_has_alpha == 0u) { + status = wuffs_base__make_status(NULL); + goto ok; + } + v_i = 0u; + v_cx = 0u; + while (v_cx < 14u) { + if (v_has_bits) { + v_has_bits = false; +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_c8 >>= 4u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + v_has_bits = true; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_c8 = t_3; + } + } + self->private_data.f_aac[(v_i & 15u)] = ((uint32_t)(((uint32_t)(((uint32_t)(self->private_impl.f_a_scale)) * 2u)) * wuffs_base__utility__sign_extend_convert_u16_u32(WUFFS_THUMBHASH__FROM_4_BITS_TO_PLUS_MINUS_1_00[((uint8_t)(v_c8 & 15u))]))); + v_i += 1u; + v_cx += 1u; } - wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1u); - self->private_impl.f_call_sequence = 32u; ok: - self->private_impl.p_skip_frame = 0; + self->private_impl.p_from_src_to_coeffs = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_skip_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_from_src_to_coeffs = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_from_src_to_coeffs.v_cy = v_cy; + self->private_data.s_from_src_to_coeffs.v_cx = v_cx; + self->private_data.s_from_src_to_coeffs.v_i = v_i; + self->private_data.s_from_src_to_coeffs.v_has_bits = v_has_bits; goto exit; exit: @@ -60830,17 +75511,315 @@ wuffs_png__decoder__skip_frame( return status; } -// -------- func png.decoder.decode_frame +// -------- func thumbhash.decoder.from_coeffs_to_pixels + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_thumbhash__decoder__from_coeffs_to_pixels( + wuffs_thumbhash__decoder* self) { + uint32_t v_h = 0; + uint32_t v_w = 0; + uint32_t v_fy[8] = {0}; + uint32_t v_fx[8] = {0}; + uint32_t v_cosines_base_y = 0; + uint32_t v_cosines_base_x = 0; + uint32_t v_y = 0; + uint32_t v_x = 0; + uint32_t v_f = 0; + uint64_t v_l = 0; + uint64_t v_p = 0; + uint64_t v_q = 0; + uint64_t v_b = 0; + uint64_t v_g = 0; + uint64_t v_r = 0; + uint64_t v_a = 0; + uint32_t v_i = 0; + uint32_t v_cy = 0; + uint32_t v_cx = 0; + + v_h = ((uint32_t)(WUFFS_THUMBHASH__DIMENSIONS_FROM_DIMENSION_CODES[self->private_impl.f_h_dimension_code])); + v_w = ((uint32_t)(WUFFS_THUMBHASH__DIMENSIONS_FROM_DIMENSION_CODES[self->private_impl.f_w_dimension_code])); + v_fy[0u] = 16384u; + v_fx[0u] = 16384u; + v_a = 255u; + v_y = 0u; + while (v_y < v_h) { + v_cosines_base_y = ((uint32_t)(WUFFS_THUMBHASH__CUMULATIVE_DIMENSIONS[self->private_impl.f_h_dimension_code])); + v_fy[1u] = wuffs_base__utility__sign_extend_convert_u16_u32(WUFFS_THUMBHASH__COSINES[(v_cosines_base_y + v_y)][0u]); + v_fy[2u] = wuffs_base__utility__sign_extend_convert_u16_u32(WUFFS_THUMBHASH__COSINES[(v_cosines_base_y + v_y)][1u]); + v_fy[3u] = wuffs_base__utility__sign_extend_convert_u16_u32(WUFFS_THUMBHASH__COSINES[(v_cosines_base_y + v_y)][2u]); + v_fy[4u] = wuffs_base__utility__sign_extend_convert_u16_u32(WUFFS_THUMBHASH__COSINES[(v_cosines_base_y + v_y)][3u]); + v_fy[5u] = wuffs_base__utility__sign_extend_convert_u16_u32(WUFFS_THUMBHASH__COSINES[(v_cosines_base_y + v_y)][4u]); + v_fy[6u] = wuffs_base__utility__sign_extend_convert_u16_u32(WUFFS_THUMBHASH__COSINES[(v_cosines_base_y + v_y)][5u]); + v_x = 0u; + while (v_x < v_w) { + v_cosines_base_x = ((uint32_t)(WUFFS_THUMBHASH__CUMULATIVE_DIMENSIONS[self->private_impl.f_w_dimension_code])); + v_fx[1u] = wuffs_base__utility__sign_extend_convert_u16_u32(WUFFS_THUMBHASH__COSINES[(v_cosines_base_x + v_x)][0u]); + v_fx[2u] = wuffs_base__utility__sign_extend_convert_u16_u32(WUFFS_THUMBHASH__COSINES[(v_cosines_base_x + v_x)][1u]); + v_fx[3u] = wuffs_base__utility__sign_extend_convert_u16_u32(WUFFS_THUMBHASH__COSINES[(v_cosines_base_x + v_x)][2u]); + v_fx[4u] = wuffs_base__utility__sign_extend_convert_u16_u32(WUFFS_THUMBHASH__COSINES[(v_cosines_base_x + v_x)][3u]); + v_fx[5u] = wuffs_base__utility__sign_extend_convert_u16_u32(WUFFS_THUMBHASH__COSINES[(v_cosines_base_x + v_x)][4u]); + v_fx[6u] = wuffs_base__utility__sign_extend_convert_u16_u32(WUFFS_THUMBHASH__COSINES[(v_cosines_base_x + v_x)][5u]); + v_l = self->private_impl.f_l_dc; + v_i = 0u; + v_cy = 0u; + while (v_cy < self->private_impl.f_ly) { + v_cx = 0u; + if (v_cy == 0u) { + v_cx = 1u; + } + while (((uint32_t)(v_cx * self->private_impl.f_ly)) < ((uint32_t)(self->private_impl.f_lx * ((uint32_t)(self->private_impl.f_ly - v_cy))))) { + v_f = ((uint32_t)(v_fx[(v_cx & 7u)] * v_fy[(v_cy & 7u)])); + v_l += ((uint64_t)(wuffs_base__utility__sign_extend_convert_u32_u64(v_f) * wuffs_base__utility__sign_extend_convert_u32_u64(self->private_data.f_lac[(v_i & 31u)]))); + v_i += 1u; + v_cx += 1u; + } + v_cy += 1u; + } + v_p = self->private_impl.f_p_dc; + v_q = self->private_impl.f_q_dc; + v_i = 0u; + v_cy = 0u; + while (v_cy < 3u) { + v_cx = 0u; + if (v_cy == 0u) { + v_cx = 1u; + } + while (v_cx < (3u - v_cy)) { + v_f = ((uint32_t)(v_fx[v_cx] * v_fy[v_cy])); + v_p += ((uint64_t)(wuffs_base__utility__sign_extend_convert_u32_u64(v_f) * wuffs_base__utility__sign_extend_convert_u32_u64(self->private_data.f_pac[(v_i & 7u)]))); + v_q += ((uint64_t)(wuffs_base__utility__sign_extend_convert_u32_u64(v_f) * wuffs_base__utility__sign_extend_convert_u32_u64(self->private_data.f_qac[(v_i & 7u)]))); + v_i += 1u; + v_cx += 1u; + } + v_cy += 1u; + } + v_b = ((uint64_t)(v_l - wuffs_base__utility__i64_divide(((uint64_t)(2u * v_p)), 3u))); + v_r = wuffs_base__utility__sign_extend_rshift_u64(((uint64_t)(((uint64_t)(((uint64_t)(3u * v_l)) + v_q)) - v_b)), 1u); + v_g = ((uint64_t)(v_r - v_q)); + if ((v_b >> 63u) != 0u) { + v_b = 0u; + } else if (v_b >= 8589384836185950u) { + v_b = 255u; + } else { + v_b /= 33683862102690u; + } + if ((v_g >> 63u) != 0u) { + v_g = 0u; + } else if (v_g >= 8589384836185950u) { + v_g = 255u; + } else { + v_g /= 33683862102690u; + } + if ((v_r >> 63u) != 0u) { + v_r = 0u; + } else if (v_r >= 8589384836185950u) { + v_r = 255u; + } else { + v_r /= 33683862102690u; + } + if (self->private_impl.f_has_alpha != 0u) { + v_a = self->private_impl.f_a_dc; + v_i = 0u; + v_cy = 0u; + while (v_cy < 5u) { + v_cx = 0u; + if (v_cy == 0u) { + v_cx = 1u; + } + while (v_cx < (5u - v_cy)) { + v_f = ((uint32_t)(v_fx[v_cx] * v_fy[v_cy])); + v_a += ((uint64_t)(wuffs_base__utility__sign_extend_convert_u32_u64(v_f) * wuffs_base__utility__sign_extend_convert_u32_u64(self->private_data.f_aac[(v_i & 15u)]))); + v_i += 1u; + v_cx += 1u; + } + v_cy += 1u; + } + if ((v_a >> 63u) != 0u) { + v_a = 0u; + } else if (v_a >= 65970697666500u) { + v_a = 255u; + } else { + v_a /= 258708618300u; + } + } + self->private_data.f_pixels[v_y][((4u * v_x) + 0u)] = ((uint8_t)(v_b)); + self->private_data.f_pixels[v_y][((4u * v_x) + 1u)] = ((uint8_t)(v_g)); + self->private_data.f_pixels[v_y][((4u * v_x) + 2u)] = ((uint8_t)(v_r)); + self->private_data.f_pixels[v_y][((4u * v_x) + 3u)] = ((uint8_t)(v_a)); + v_x += 1u; + } + v_y += 1u; + } + return wuffs_base__make_empty_struct(); +} + +// -------- func thumbhash.decoder.from_pixels_to_dst + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_thumbhash__decoder__from_pixels_to_dst( + wuffs_thumbhash__decoder* self, + wuffs_base__pixel_buffer* a_dst) { + uint32_t v_h = 0; + uint32_t v_w = 0; + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint32_t v_dst_bytes_per_pixel = 0; + uint64_t v_dst_bytes_per_row = 0; + wuffs_base__table_u8 v_tab = {0}; + uint32_t v_y = 0; + wuffs_base__slice_u8 v_dst = {0}; + wuffs_base__slice_u8 v_src = {0}; + + v_h = ((uint32_t)(WUFFS_THUMBHASH__DIMENSIONS_FROM_DIMENSION_CODES[self->private_impl.f_h_dimension_code])); + v_w = ((uint32_t)(WUFFS_THUMBHASH__DIMENSIONS_FROM_DIMENSION_CODES[self->private_impl.f_w_dimension_code])); + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + return wuffs_base__make_status(wuffs_base__error__unsupported_option); + } + v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); + v_dst_bytes_per_row = ((uint64_t)((v_w * v_dst_bytes_per_pixel))); + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + while (v_y < v_h) { + v_src = wuffs_base__make_slice_u8(self->private_data.f_pixels[v_y], (v_w * 4u)); + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, v_y); + if (v_dst_bytes_per_row < ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row); + } + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, wuffs_base__pixel_buffer__palette(a_dst), v_src); + v_y += 1u; + } + return wuffs_base__make_status(NULL); +} + +// -------- func thumbhash.decoder.frame_dirty_rect + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_thumbhash__decoder__frame_dirty_rect( + const wuffs_thumbhash__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + + return wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + ((uint32_t)(WUFFS_THUMBHASH__DIMENSIONS_FROM_DIMENSION_CODES[self->private_impl.f_w_dimension_code])), + ((uint32_t)(WUFFS_THUMBHASH__DIMENSIONS_FROM_DIMENSION_CODES[self->private_impl.f_h_dimension_code]))); +} + +// -------- func thumbhash.decoder.num_animation_loops + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_thumbhash__decoder__num_animation_loops( + const wuffs_thumbhash__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return 0u; +} + +// -------- func thumbhash.decoder.num_decoded_frame_configs + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_thumbhash__decoder__num_decoded_frame_configs( + const wuffs_thumbhash__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (self->private_impl.f_call_sequence > 32u) { + return 1u; + } + return 0u; +} + +// -------- func thumbhash.decoder.num_decoded_frames + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_thumbhash__decoder__num_decoded_frames( + const wuffs_thumbhash__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (self->private_impl.f_call_sequence > 64u) { + return 1u; + } + return 0u; +} + +// -------- func thumbhash.decoder.restart_frame WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_png__decoder__decode_frame( - wuffs_png__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { +wuffs_thumbhash__decoder__restart_frame( + wuffs_thumbhash__decoder* self, + uint64_t a_index, + uint64_t a_io_position) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + if (self->private_impl.f_call_sequence < 32u) { + return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + } + if ((a_index != 0u) || (a_io_position != ((uint64_t)(self->private_impl.f_frame_config_io_position)))) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + self->private_impl.f_call_sequence = 40u; + return wuffs_base__make_status(NULL); +} + +// -------- func thumbhash.decoder.set_report_metadata + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_thumbhash__decoder__set_report_metadata( + wuffs_thumbhash__decoder* self, + uint32_t a_fourcc, + bool a_report) { + return wuffs_base__make_empty_struct(); +} + +// -------- func thumbhash.decoder.tell_me_more + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_thumbhash__decoder__tell_me_more( + wuffs_thumbhash__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { if (!self) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); } @@ -60855,47 +75834,18 @@ wuffs_png__decoder__decode_frame( return wuffs_base__make_status(wuffs_base__error__bad_argument); } if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 3)) { + (self->private_impl.active_coroutine != 4)) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - uint32_t coro_susp_point = self->private_impl.p_decode_frame; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - while (true) { - { - wuffs_base__status t_0 = wuffs_png__decoder__do_decode_frame(self, - a_dst, - a_src, - a_blend, - a_workbuf, - a_opts); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_png__error__truncated_input); - goto exit; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - } - - ok: - self->private_impl.p_decode_frame = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; + status = wuffs_base__make_status(wuffs_base__error__no_more_information); + goto exit; + goto ok; + ok: goto exit; exit: if (wuffs_base__status__is_error(&status)) { @@ -60904,271 +75854,370 @@ wuffs_png__decoder__decode_frame( return status; } -// -------- func png.decoder.do_decode_frame +// -------- func thumbhash.decoder.workbuf_len + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_thumbhash__decoder__workbuf_len( + const wuffs_thumbhash__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + return wuffs_base__utility__make_range_ii_u64(0u, 0u); +} + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__THUMBHASH) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__VP8) + +// ---------------- Status Codes Implementations + +// ---------------- Private Consts + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes + +// ---------------- VTables + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_vp8__placeholder__initialize( + wuffs_vp8__placeholder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } + } + + self->private_impl.magic = WUFFS_BASE__MAGIC; + return wuffs_base__make_status(NULL); +} + +wuffs_vp8__placeholder* +wuffs_vp8__placeholder__alloc(void) { + wuffs_vp8__placeholder* x = + (wuffs_vp8__placeholder*)(calloc(1, sizeof(wuffs_vp8__placeholder))); + if (!x) { + return NULL; + } + if (wuffs_vp8__placeholder__initialize( + x, sizeof(wuffs_vp8__placeholder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_vp8__placeholder(void) { + return sizeof(wuffs_vp8__placeholder); +} + +// ---------------- Function Implementations + +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__VP8) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WBMP) + +// ---------------- Status Codes Implementations + +const char wuffs_wbmp__error__bad_header[] = "#wbmp: bad header"; +const char wuffs_wbmp__error__truncated_input[] = "#wbmp: truncated input"; + +// ---------------- Private Consts + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__do_decode_frame( - wuffs_png__decoder* self, +wuffs_wbmp__decoder__do_decode_image_config( + wuffs_wbmp__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_wbmp__decoder__do_decode_frame_config( + wuffs_wbmp__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_wbmp__decoder__do_decode_frame( + wuffs_wbmp__decoder* self, wuffs_base__pixel_buffer* a_dst, wuffs_base__io_buffer* a_src, wuffs_base__pixel_blend a_blend, wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { - wuffs_base__status status = wuffs_base__make_status(NULL); + wuffs_base__decode_frame_options* a_opts); - uint32_t v_seq_num = 0; - wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t v_pass_width = 0; - uint32_t v_pass_height = 0; +// ---------------- VTables - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; +const wuffs_base__image_decoder__func_ptrs +wuffs_wbmp__decoder__func_ptrs_for__wuffs_base__image_decoder = { + (wuffs_base__status(*)(void*, + wuffs_base__pixel_buffer*, + wuffs_base__io_buffer*, + wuffs_base__pixel_blend, + wuffs_base__slice_u8, + wuffs_base__decode_frame_options*))(&wuffs_wbmp__decoder__decode_frame), + (wuffs_base__status(*)(void*, + wuffs_base__frame_config*, + wuffs_base__io_buffer*))(&wuffs_wbmp__decoder__decode_frame_config), + (wuffs_base__status(*)(void*, + wuffs_base__image_config*, + wuffs_base__io_buffer*))(&wuffs_wbmp__decoder__decode_image_config), + (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_wbmp__decoder__frame_dirty_rect), + (uint64_t(*)(const void*, + uint32_t))(&wuffs_wbmp__decoder__get_quirk), + (uint32_t(*)(const void*))(&wuffs_wbmp__decoder__num_animation_loops), + (uint64_t(*)(const void*))(&wuffs_wbmp__decoder__num_decoded_frame_configs), + (uint64_t(*)(const void*))(&wuffs_wbmp__decoder__num_decoded_frames), + (wuffs_base__status(*)(void*, + uint64_t, + uint64_t))(&wuffs_wbmp__decoder__restart_frame), + (wuffs_base__status(*)(void*, + uint32_t, + uint64_t))(&wuffs_wbmp__decoder__set_quirk), + (wuffs_base__empty_struct(*)(void*, + uint32_t, + bool))(&wuffs_wbmp__decoder__set_report_metadata), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__more_information*, + wuffs_base__io_buffer*))(&wuffs_wbmp__decoder__tell_me_more), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_wbmp__decoder__workbuf_len), +}; + +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_wbmp__decoder__initialize( + wuffs_wbmp__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } + } + + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = + wuffs_base__image_decoder__vtable_name; + self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = + (const void*)(&wuffs_wbmp__decoder__func_ptrs_for__wuffs_base__image_decoder); + return wuffs_base__make_status(NULL); +} + +wuffs_wbmp__decoder* +wuffs_wbmp__decoder__alloc(void) { + wuffs_wbmp__decoder* x = + (wuffs_wbmp__decoder*)(calloc(1, sizeof(wuffs_wbmp__decoder))); + if (!x) { + return NULL; + } + if (wuffs_wbmp__decoder__initialize( + x, sizeof(wuffs_wbmp__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_wbmp__decoder(void) { + return sizeof(wuffs_wbmp__decoder); +} + +// ---------------- Function Implementations + +// -------- func wbmp.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_wbmp__decoder__get_quirk( + const wuffs_wbmp__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return 0u; +} + +// -------- func wbmp.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_wbmp__decoder__set_quirk( + wuffs_wbmp__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} + +// -------- func wbmp.decoder.decode_image_config + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_wbmp__decoder__decode_image_config( + wuffs_wbmp__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_image_config; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (((uint8_t)(self->private_impl.f_call_sequence & 16u)) != 0u) { - status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - goto exit; - } else if (self->private_impl.f_call_sequence >= 96u) { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } else if (self->private_impl.f_call_sequence != 64u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_png__decoder__do_decode_frame_config(self, NULL, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - } while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 8u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - continue; + { + wuffs_base__status t_0 = wuffs_wbmp__decoder__do_decode_image_config(self, a_dst, a_src); + v_status = t_0; } - self->private_impl.f_chunk_length = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - self->private_impl.f_chunk_type = ((uint32_t)((wuffs_base__peek_u64le__no_bounds_check(iop_a_src) >> 32u))); - if (self->private_impl.f_chunk_type == 1413563465u) { - self->private_impl.f_chunk_type_array[0u] = 73u; - self->private_impl.f_chunk_type_array[1u] = 68u; - self->private_impl.f_chunk_type_array[2u] = 65u; - self->private_impl.f_chunk_type_array[3u] = 84u; - iop_a_src += 8u; - if ( ! self->private_impl.f_ignore_checksum) { - wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, - sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); - wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__make_slice_u8(self->private_impl.f_chunk_type_array, 4)); - } - break; - } else if (self->private_impl.f_chunk_type == 1413571686u) { - self->private_impl.f_chunk_type_array[0u] = 102u; - self->private_impl.f_chunk_type_array[1u] = 100u; - self->private_impl.f_chunk_type_array[2u] = 65u; - self->private_impl.f_chunk_type_array[3u] = 84u; - if (self->private_impl.f_chunk_length < 4u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_length -= 4u; - iop_a_src += 8u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint32_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_0 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_frame.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_frame.scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_0); - if (num_bits_0 == 24) { - t_0 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)); - } - } - v_seq_num = t_0; - } - if (v_seq_num != self->private_impl.f_next_animation_seq_num) { - status = wuffs_base__make_status(wuffs_png__error__bad_animation_sequence_number); - goto exit; - } else if (self->private_impl.f_next_animation_seq_num >= 4294967295u) { - status = wuffs_base__make_status(wuffs_png__error__unsupported_png_file); - goto exit; - } - self->private_impl.f_next_animation_seq_num += 1u; - break; - } else if (self->private_impl.f_chunk_type == 1280598886u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_wbmp__error__truncated_input); goto exit; } - self->private_data.s_do_decode_frame.scratch = (((uint64_t)(self->private_impl.f_chunk_length)) + 12u); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - if (self->private_data.s_do_decode_frame.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_decode_frame.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_do_decode_frame.scratch; - self->private_impl.f_chunk_length = 0u; - } - if (self->private_impl.f_zlib_is_dirty) { - wuffs_private_impl__ignore_status(wuffs_zlib__decoder__initialize(&self->private_data.f_zlib, - sizeof (wuffs_zlib__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); - if (self->private_impl.f_ignore_checksum) { - wuffs_zlib__decoder__set_quirk(&self->private_data.f_zlib, 1u, 1u); - } - } - self->private_impl.f_zlib_is_dirty = true; - v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, - wuffs_base__pixel_buffer__pixel_format(a_dst), - wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)), - wuffs_base__utility__make_pixel_format(self->private_impl.f_src_pixfmt), - wuffs_base__make_slice_u8(self->private_data.f_src_palette, 1024), - a_blend); - if ( ! wuffs_base__status__is_ok(&v_status)) { status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; - } - goto ok; - } - self->private_impl.f_workbuf_hist_pos_base = 0u; - while (true) { - if (self->private_impl.f_chunk_type_array[0u] == 73u) { - v_pass_width = (16777215u & ((((uint32_t)(WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][1u])) + self->private_impl.f_width) >> WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][0u])); - v_pass_height = (16777215u & ((((uint32_t)(WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][4u])) + self->private_impl.f_height) >> WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][3u])); - } else { - v_pass_width = (16777215u & ((uint32_t)(self->private_impl.f_frame_rect_x1 - self->private_impl.f_frame_rect_x0))); - v_pass_height = (16777215u & ((uint32_t)(self->private_impl.f_frame_rect_y1 - self->private_impl.f_frame_rect_y0))); - } - if ((v_pass_width > 0u) && (v_pass_height > 0u)) { - self->private_impl.f_pass_bytes_per_row = wuffs_png__decoder__calculate_bytes_per_row(self, v_pass_width); - self->private_impl.f_pass_workbuf_length = (((uint64_t)(v_pass_height)) * (1u + self->private_impl.f_pass_bytes_per_row)); - while (true) { - { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - wuffs_base__status t_1 = wuffs_png__decoder__decode_pass(self, a_src, a_workbuf); - v_status = t_1; - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - } - if (wuffs_base__status__is_ok(&v_status)) { - break; - } else if (wuffs_base__status__is_error(&v_status) || ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed))) { - if (self->private_impl.f_workbuf_wi <= ((uint64_t)(a_workbuf.len))) { - wuffs_png__decoder__filter_and_swizzle(self, a_dst, wuffs_base__slice_u8__subslice_j(a_workbuf, self->private_impl.f_workbuf_wi)); - } - if (v_status.repr == wuffs_base__suspension__short_read) { - status = wuffs_base__make_status(wuffs_png__error__truncated_input); - goto exit; - } - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); - } - v_status = wuffs_png__decoder__filter_and_swizzle(self, a_dst, a_workbuf); - if ( ! wuffs_base__status__is_ok(&v_status)) { - status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; - } - goto ok; - } - self->private_impl.f_workbuf_hist_pos_base += self->private_impl.f_pass_workbuf_length; - } - if ((self->private_impl.f_interlace_pass == 0u) || (self->private_impl.f_interlace_pass >= 7u)) { - break; - } -#if defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wconversion" -#endif - self->private_impl.f_interlace_pass += 1u; -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } - wuffs_private_impl__u32__sat_add_indirect(&self->private_impl.f_num_decoded_frames_value, 1u); - self->private_impl.f_call_sequence = 32u; ok: - self->private_impl.p_do_decode_frame = 0; + self->private_impl.p_decode_image_config = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; goto exit; exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; } - return status; } -// -------- func png.decoder.decode_pass +// -------- func wbmp.decoder.do_decode_image_config WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__decode_pass( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { +wuffs_wbmp__decoder__do_decode_image_config( + wuffs_wbmp__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - wuffs_base__io_buffer u_w = wuffs_base__empty_io_buffer(); - wuffs_base__io_buffer* v_w = &u_w; - uint8_t* iop_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io0_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint64_t v_w_mark = 0; - uint64_t v_r_mark = 0; - wuffs_base__status v_zlib_status = wuffs_base__make_status(NULL); - uint32_t v_checksum_have = 0; - uint32_t v_checksum_want = 0; - uint32_t v_seq_num = 0; + uint8_t v_c8 = 0; + uint32_t v_i = 0; + uint32_t v_p = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -61181,304 +76230,88 @@ wuffs_png__decoder__decode_pass( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_pass; + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; + if (coro_susp_point) { + v_i = self->private_data.s_do_decode_image_config.v_i; + v_p = self->private_data.s_do_decode_image_config.v_p; + } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - self->private_impl.f_workbuf_wi = 0u; - while (true) { - if ((self->private_impl.f_workbuf_wi > self->private_impl.f_pass_workbuf_length) || (self->private_impl.f_pass_workbuf_length > ((uint64_t)(a_workbuf.len)))) { - status = wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); - goto exit; - } + if (self->private_impl.f_call_sequence != 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + goto exit; + } + v_i = 0u; + while (v_i < 2u) { { - wuffs_base__io_buffer* o_0_v_w = v_w; - uint8_t *o_0_iop_v_w = iop_v_w; - uint8_t *o_0_io0_v_w = io0_v_w; - uint8_t *o_0_io1_v_w = io1_v_w; - uint8_t *o_0_io2_v_w = io2_v_w; - v_w = wuffs_private_impl__io_writer__set( - &u_w, - &iop_v_w, - &io0_v_w, - &io1_v_w, - &io2_v_w, - wuffs_base__slice_u8__subslice_ij(a_workbuf, - self->private_impl.f_workbuf_wi, - self->private_impl.f_pass_workbuf_length), - ((uint64_t)(self->private_impl.f_workbuf_hist_pos_base + self->private_impl.f_workbuf_wi))); - { - const bool o_1_closed_a_src = a_src->meta.closed; - const uint8_t *o_1_io2_a_src = io2_a_src; - wuffs_private_impl__io_reader__limit(&io2_a_src, iop_a_src, - ((uint64_t)(self->private_impl.f_chunk_length))); - if (a_src) { - size_t n = ((size_t)(io2_a_src - a_src->data.ptr)); - a_src->meta.closed = a_src->meta.closed && (a_src->meta.wi <= n); - a_src->meta.wi = n; - } - v_w_mark = ((uint64_t)(iop_v_w - io0_v_w)); - v_r_mark = ((uint64_t)(iop_a_src - io0_a_src)); - { - u_w.meta.wi = ((size_t)(iop_v_w - u_w.data.ptr)); - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - wuffs_base__status t_0 = wuffs_zlib__decoder__transform_io(&self->private_data.f_zlib, v_w, a_src, wuffs_base__utility__empty_slice_u8()); - v_zlib_status = t_0; - iop_v_w = u_w.data.ptr + u_w.meta.wi; - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - } - if ( ! self->private_impl.f_ignore_checksum) { - wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_private_impl__io__since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); - } - wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_chunk_length, ((uint32_t)(wuffs_private_impl__io__count_since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)))))); - wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_workbuf_wi, wuffs_private_impl__io__count_since(v_w_mark, ((uint64_t)(iop_v_w - io0_v_w)))); - io2_a_src = o_1_io2_a_src; - if (a_src) { - a_src->meta.closed = o_1_closed_a_src; - a_src->meta.wi = ((size_t)(io2_a_src - a_src->data.ptr)); - } - } - v_w = o_0_v_w; - iop_v_w = o_0_iop_v_w; - io0_v_w = o_0_io0_v_w; - io1_v_w = o_0_io1_v_w; - io2_v_w = o_0_io2_v_w; - } - if (wuffs_base__status__is_ok(&v_zlib_status)) { - if (self->private_impl.f_chunk_length > 0u) { - status = wuffs_base__make_status(wuffs_base__error__too_much_data); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint32_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_1 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_pass.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_pass.scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_1); - if (num_bits_1 == 24) { - t_1 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)); - } - } - v_checksum_want = t_1; - } - if ( ! self->private_impl.f_ignore_checksum && (self->private_impl.f_chunk_type_array[0u] == 73u)) { - v_checksum_have = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__utility__empty_slice_u8()); - if (v_checksum_have != v_checksum_want) { - status = wuffs_base__make_status(wuffs_png__error__bad_checksum); - goto exit; - } - } - break; - } else if (v_zlib_status.repr == wuffs_base__suspension__short_write) { - if ((1u <= self->private_impl.f_interlace_pass) && (self->private_impl.f_interlace_pass <= 6u)) { - break; - } - status = wuffs_base__make_status(wuffs_base__error__too_much_data); - goto exit; - } else if (v_zlib_status.repr != wuffs_base__suspension__short_read) { - status = v_zlib_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; - } - goto ok; - } else if (self->private_impl.f_chunk_length == 0u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint32_t t_2; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_2 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_pass.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_pass.scratch; - uint32_t num_bits_2 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_2); - if (num_bits_2 == 24) { - t_2 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_2 += 8u; - *scratch |= ((uint64_t)(num_bits_2)); - } - } - v_checksum_want = t_2; - } - if ( ! self->private_impl.f_ignore_checksum && (self->private_impl.f_chunk_type_array[0u] == 73u)) { - v_checksum_have = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__utility__empty_slice_u8()); - if (v_checksum_have != v_checksum_want) { - status = wuffs_base__make_status(wuffs_png__error__bad_checksum); - goto exit; - } - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); - uint32_t t_3; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_3 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_pass.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_pass.scratch; - uint32_t num_bits_3 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_3); - if (num_bits_3 == 24) { - t_3 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_3 += 8u; - *scratch |= ((uint64_t)(num_bits_3)); - } - } - self->private_impl.f_chunk_length = t_3; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - uint32_t t_4; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_4 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_pass.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_pass.scratch; - uint32_t num_bits_4 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_4; - if (num_bits_4 == 24) { - t_4 = ((uint32_t)(*scratch)); - break; - } - num_bits_4 += 8u; - *scratch |= ((uint64_t)(num_bits_4)) << 56; - } - } - self->private_impl.f_chunk_type = t_4; - } - if (self->private_impl.f_chunk_type_array[0u] == 73u) { - if (self->private_impl.f_chunk_type != 1413563465u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - if ( ! self->private_impl.f_ignore_checksum) { - wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, - sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); - wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_base__make_slice_u8(self->private_impl.f_chunk_type_array, 4)); - } - } else { - if ((self->private_impl.f_chunk_type != 1413571686u) || (self->private_impl.f_chunk_length < 4u)) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_length -= 4u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - uint32_t t_5; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_5 = wuffs_base__peek_u32be__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_decode_pass.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_decode_pass.scratch; - uint32_t num_bits_5 = ((uint32_t)(*scratch & 0xFFu)); - *scratch >>= 8; - *scratch <<= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_5); - if (num_bits_5 == 24) { - t_5 = ((uint32_t)(*scratch >> 32)); - break; - } - num_bits_5 += 8u; - *scratch |= ((uint64_t)(num_bits_5)); - } - } - v_seq_num = t_5; - } - if (v_seq_num != self->private_impl.f_next_animation_seq_num) { - status = wuffs_base__make_status(wuffs_png__error__bad_animation_sequence_number); - goto exit; - } else if (self->private_impl.f_next_animation_seq_num >= 4294967295u) { - status = wuffs_base__make_status(wuffs_png__error__unsupported_png_file); - goto exit; - } - self->private_impl.f_next_animation_seq_num += 1u; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - continue; - } else if (((uint64_t)(io2_a_src - iop_a_src)) > 0u) { - status = wuffs_base__make_status(wuffs_png__error__internal_error_zlib_decoder_did_not_exhaust_its_input); + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + if (v_c8 != 0u) { + status = wuffs_base__make_status(wuffs_wbmp__error__bad_header); goto exit; } - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(11); + v_i += 1u; } - if (self->private_impl.f_workbuf_wi != self->private_impl.f_pass_workbuf_length) { - status = wuffs_base__make_status(wuffs_base__error__not_enough_data); - goto exit; - } else if (0u < ((uint64_t)(a_workbuf.len))) { - if (a_workbuf.ptr[0u] == 4u) { - a_workbuf.ptr[0u] = 1u; + v_i = 0u; + while (v_i < 2u) { + v_p = 0u; + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + v_p |= ((uint32_t)(((uint8_t)(v_c8 & 127u)))); + if (((uint8_t)(v_c8 >> 7u)) == 0u) { + break; + } else if (v_p > 131071u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); + goto exit; + } + v_p <<= 7u; + } + if (v_i == 0u) { + self->private_impl.f_width = v_p; + } else { + self->private_impl.f_height = v_p; } + v_i += 1u; + } + self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); + if (a_dst != NULL) { + wuffs_base__image_config__set( + a_dst, + 2198077448u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height, + self->private_impl.f_frame_config_io_position, + true); } + self->private_impl.f_call_sequence = 32u; + goto ok; ok: - self->private_impl.p_decode_pass = 0; + self->private_impl.p_do_decode_image_config = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_pass = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_decode_image_config.v_i = v_i; + self->private_data.s_do_decode_image_config.v_p = v_p; goto exit; exit: @@ -61489,151 +76322,170 @@ wuffs_png__decoder__decode_pass( return status; } -// -------- func png.decoder.frame_dirty_rect +// -------- func wbmp.decoder.decode_frame_config WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 -wuffs_png__decoder__frame_dirty_rect( - const wuffs_png__decoder* self) { +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_wbmp__decoder__decode_frame_config( + wuffs_wbmp__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { if (!self) { - return wuffs_base__utility__empty_rect_ie_u32(); + return wuffs_base__make_status(wuffs_base__error__bad_receiver); } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_rect_ie_u32(); + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); } - - return wuffs_base__utility__make_rect_ie_u32( - self->private_impl.f_frame_rect_x0, - self->private_impl.f_frame_rect_y0, - self->private_impl.f_frame_rect_x1, - self->private_impl.f_frame_rect_y1); -} - -// -------- func png.decoder.num_animation_loops - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_png__decoder__num_animation_loops( - const wuffs_png__decoder* self) { - if (!self) { - return 0; + if (!a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 2)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); - return self->private_impl.f_num_animation_loops_value; -} + wuffs_base__status v_status = wuffs_base__make_status(NULL); -// -------- func png.decoder.num_decoded_frame_configs + uint32_t coro_susp_point = self->private_impl.p_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_png__decoder__num_decoded_frame_configs( - const wuffs_png__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } + while (true) { + { + wuffs_base__status t_0 = wuffs_wbmp__decoder__do_decode_frame_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_wbmp__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } - return ((uint64_t)(self->private_impl.f_num_decoded_frame_configs_value)); -} + ok: + self->private_impl.p_decode_frame_config = 0; + goto exit; + } -// -------- func png.decoder.num_decoded_frames + goto suspend; + suspend: + self->private_impl.p_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_png__decoder__num_decoded_frames( - const wuffs_png__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; } - - return ((uint64_t)(self->private_impl.f_num_decoded_frames_value)); + return status; } -// -------- func png.decoder.restart_frame +// -------- func wbmp.decoder.do_decode_frame_config WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_png__decoder__restart_frame( - wuffs_png__decoder* self, - uint64_t a_index, - uint64_t a_io_position) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } +static wuffs_base__status +wuffs_wbmp__decoder__do_decode_frame_config( + wuffs_wbmp__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); - if (self->private_impl.f_call_sequence < 32u) { - return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - } else if ((a_index >= ((uint64_t)(self->private_impl.f_num_animation_frames_value))) || ((a_index == 0u) && (a_io_position != self->private_impl.f_first_config_io_position))) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - self->private_impl.f_call_sequence = 40u; - if (self->private_impl.f_interlace_pass >= 1u) { - self->private_impl.f_interlace_pass = 1u; + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - self->private_impl.f_frame_config_io_position = a_io_position; - self->private_impl.f_num_decoded_frame_configs_value = ((uint32_t)(a_index)); - self->private_impl.f_num_decoded_frames_value = self->private_impl.f_num_decoded_frame_configs_value; - return wuffs_base__make_status(NULL); -} -// -------- func png.decoder.set_report_metadata + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_png__decoder__set_report_metadata( - wuffs_png__decoder* self, - uint32_t a_fourcc, - bool a_report) { - if (!self) { - return wuffs_base__make_empty_struct(); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_empty_struct(); + if (self->private_impl.f_call_sequence == 32u) { + } else if (self->private_impl.f_call_sequence < 32u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_wbmp__decoder__do_decode_image_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else if (self->private_impl.f_call_sequence == 40u) { + if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_restart); + goto exit; + } + } else if (self->private_impl.f_call_sequence == 64u) { + self->private_impl.f_call_sequence = 96u; + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + if (a_dst != NULL) { + wuffs_base__frame_config__set( + a_dst, + wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height), + ((wuffs_base__flicks)(0u)), + 0u, + self->private_impl.f_frame_config_io_position, + 0u, + true, + false, + 4278190080u); + } + self->private_impl.f_call_sequence = 64u; + + ok: + self->private_impl.p_do_decode_frame_config = 0; + goto exit; } - if (a_fourcc == 1128813133u) { - self->private_impl.f_report_metadata_chrm = a_report; - } else if (a_fourcc == 1163413830u) { - self->private_impl.f_report_metadata_exif = a_report; - } else if (a_fourcc == 1195461953u) { - self->private_impl.f_report_metadata_gama = a_report; - } else if (a_fourcc == 1229144912u) { - self->private_impl.f_report_metadata_iccp = a_report; - } else if (a_fourcc == 1263947808u) { - self->private_impl.f_report_metadata_kvp = a_report; - } else if (a_fourcc == 1397901122u) { - self->private_impl.f_report_metadata_srgb = a_report; + goto suspend; + suspend: + self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - return wuffs_base__make_empty_struct(); + + return status; } -// -------- func png.decoder.tell_me_more +// -------- func wbmp.decoder.decode_frame WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_png__decoder__tell_me_more( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src) { +wuffs_wbmp__decoder__decode_frame( + wuffs_wbmp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { if (!self) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); } @@ -61648,7 +76500,7 @@ wuffs_png__decoder__tell_me_more( return wuffs_base__make_status(wuffs_base__error__bad_argument); } if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 4)) { + (self->private_impl.active_coroutine != 3)) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } @@ -61657,17 +76509,22 @@ wuffs_png__decoder__tell_me_more( wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t coro_susp_point = self->private_impl.p_tell_me_more; + uint32_t coro_susp_point = self->private_impl.p_decode_frame; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; while (true) { { - wuffs_base__status t_0 = wuffs_png__decoder__do_tell_me_more(self, a_dst, a_minfo, a_src); + wuffs_base__status t_0 = wuffs_wbmp__decoder__do_decode_frame(self, + a_dst, + a_src, + a_blend, + a_workbuf, + a_opts); v_status = t_0; } if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_png__error__truncated_input); + status = wuffs_base__make_status(wuffs_wbmp__error__truncated_input); goto exit; } status = v_status; @@ -61675,540 +76532,337 @@ wuffs_png__decoder__tell_me_more( } ok: - self->private_impl.p_tell_me_more = 0; + self->private_impl.p_decode_frame = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func wbmp.decoder.do_decode_frame + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_wbmp__decoder__do_decode_frame( + wuffs_wbmp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + wuffs_base__pixel_format v_dst_pixfmt = {0}; + uint32_t v_dst_bits_per_pixel = 0; + uint64_t v_dst_bytes_per_pixel = 0; + uint64_t v_dst_x_in_bytes = 0; + uint32_t v_dst_x = 0; + uint32_t v_dst_y = 0; + wuffs_base__table_u8 v_tab = {0}; + wuffs_base__slice_u8 v_dst = {0}; + uint8_t v_src[1] = {0}; + uint8_t v_c8 = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; + if (coro_susp_point) { + v_dst_bytes_per_pixel = self->private_data.s_do_decode_frame.v_dst_bytes_per_pixel; + v_dst_x = self->private_data.s_do_decode_frame.v_dst_x; + v_dst_y = self->private_data.s_do_decode_frame.v_dst_y; + memcpy(v_src, self->private_data.s_do_decode_frame.v_src, sizeof(v_src)); + v_c8 = self->private_data.s_do_decode_frame.v_c8; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence == 64u) { + } else if (self->private_impl.f_call_sequence < 64u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_wbmp__decoder__do_decode_frame_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else { + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; + } + v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, + wuffs_base__pixel_buffer__pixel_format(a_dst), + wuffs_base__pixel_buffer__palette(a_dst), + wuffs_base__utility__make_pixel_format(536870920u), + wuffs_base__utility__empty_slice_u8(), + a_blend); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + status = wuffs_base__make_status(wuffs_base__error__unsupported_option); + goto exit; + } + v_dst_bytes_per_pixel = ((uint64_t)((v_dst_bits_per_pixel / 8u))); + if (self->private_impl.f_width > 0u) { + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + while (v_dst_y < self->private_impl.f_height) { + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, v_dst_y); + v_dst_x = 0u; + while (v_dst_x < self->private_impl.f_width) { + if ((v_dst_x & 7u) == 0u) { + while (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, v_dst_y); + v_dst_x_in_bytes = (((uint64_t)(v_dst_x)) * v_dst_bytes_per_pixel); + if (v_dst_x_in_bytes <= ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_x_in_bytes); + } + } + v_c8 = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); + iop_a_src += 1u; + } + if (((uint8_t)(v_c8 & 128u)) == 0u) { + v_src[0u] = 0u; + } else { + v_src[0u] = 255u; + } + v_c8 = ((uint8_t)((((uint32_t)(v_c8)) << 1u))); + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, wuffs_base__utility__empty_slice_u8(), wuffs_base__make_slice_u8(v_src, 1)); + if (v_dst_bytes_per_pixel <= ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_bytes_per_pixel); + } + v_dst_x += 1u; + } + v_dst_y += 1u; + } + } + self->private_impl.f_call_sequence = 96u; + + ok: + self->private_impl.p_do_decode_frame = 0; goto exit; } - goto suspend; - suspend: - self->private_impl.p_tell_me_more = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 4 : 0; - - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - } - return status; + goto suspend; + suspend: + self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_decode_frame.v_dst_bytes_per_pixel = v_dst_bytes_per_pixel; + self->private_data.s_do_decode_frame.v_dst_x = v_dst_x; + self->private_data.s_do_decode_frame.v_dst_y = v_dst_y; + memcpy(self->private_data.s_do_decode_frame.v_src, v_src, sizeof(v_src)); + self->private_data.s_do_decode_frame.v_c8 = v_c8; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func wbmp.decoder.frame_dirty_rect + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 +wuffs_wbmp__decoder__frame_dirty_rect( + const wuffs_wbmp__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_rect_ie_u32(); + } + + return wuffs_base__utility__make_rect_ie_u32( + 0u, + 0u, + self->private_impl.f_width, + self->private_impl.f_height); +} + +// -------- func wbmp.decoder.num_animation_loops + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint32_t +wuffs_wbmp__decoder__num_animation_loops( + const wuffs_wbmp__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + return 0u; } -// -------- func png.decoder.do_tell_me_more +// -------- func wbmp.decoder.num_decoded_frame_configs WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_png__decoder__do_tell_me_more( - wuffs_png__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_wbmp__decoder__num_decoded_frame_configs( + const wuffs_wbmp__decoder* self) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } - uint8_t v_c = 0; - uint16_t v_c2 = 0; - wuffs_base__io_buffer u_w = wuffs_base__empty_io_buffer(); - wuffs_base__io_buffer* v_w = &u_w; - uint8_t* iop_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io0_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_v_w WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint64_t v_num_written = 0; - uint64_t v_w_mark = 0; - uint64_t v_r_mark = 0; - wuffs_base__status v_zlib_status = wuffs_base__make_status(NULL); + if (self->private_impl.f_call_sequence > 32u) { + return 1u; + } + return 0u; +} - uint8_t* iop_a_dst = NULL; - uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; - } +// -------- func wbmp.decoder.num_decoded_frames + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_wbmp__decoder__num_decoded_frames( + const wuffs_wbmp__decoder* self) { + if (!self) { + return 0; } - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; } - uint32_t coro_susp_point = self->private_impl.p_do_tell_me_more; - if (coro_susp_point) { - v_zlib_status = self->private_data.s_do_tell_me_more.v_zlib_status; + if (self->private_impl.f_call_sequence > 64u) { + return 1u; } - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + return 0u; +} - if (((uint8_t)(self->private_impl.f_call_sequence & 16u)) == 0u) { - status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - goto exit; - } - if (self->private_impl.f_metadata_fourcc == 0u) { - status = wuffs_base__make_status(wuffs_base__error__no_more_information); - goto exit; - } - do { - if (self->private_impl.f_metadata_flavor == 3u) { - while (true) { - if (wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))) != self->private_impl.f_metadata_y) { - status = wuffs_base__make_status(wuffs_base__error__bad_i_o_position); - goto exit; - } else if (a_minfo != NULL) { - wuffs_base__more_information__set(a_minfo, - self->private_impl.f_metadata_flavor, - self->private_impl.f_metadata_fourcc, - self->private_impl.f_metadata_x, - self->private_impl.f_metadata_y, - self->private_impl.f_metadata_z); - } - if (self->private_impl.f_metadata_y >= self->private_impl.f_metadata_z) { - goto label__goto_done__break; - } - self->private_impl.f_metadata_y = self->private_impl.f_metadata_z; - status = wuffs_base__make_status(wuffs_base__suspension__even_more_information); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - } - } - if (self->private_impl.f_metadata_is_zlib_compressed) { - if (self->private_impl.f_zlib_is_dirty) { - wuffs_private_impl__ignore_status(wuffs_zlib__decoder__initialize(&self->private_data.f_zlib, - sizeof (wuffs_zlib__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); - if (self->private_impl.f_ignore_checksum) { - wuffs_zlib__decoder__set_quirk(&self->private_data.f_zlib, 1u, 1u); - } - } - self->private_impl.f_zlib_is_dirty = true; - self->private_impl.f_ztxt_hist_pos = 0u; - } - label__loop__continue:; - while (true) { - if (a_minfo != NULL) { - wuffs_base__more_information__set(a_minfo, - self->private_impl.f_metadata_flavor, - self->private_impl.f_metadata_fourcc, - self->private_impl.f_metadata_x, - self->private_impl.f_metadata_y, - self->private_impl.f_metadata_z); - } - if (self->private_impl.f_metadata_flavor != 4u) { - break; - } - if (self->private_impl.f_metadata_is_zlib_compressed) { - if (self->private_impl.f_chunk_type == 1346585449u) { - { - const bool o_0_closed_a_src = a_src->meta.closed; - const uint8_t *o_0_io2_a_src = io2_a_src; - wuffs_private_impl__io_reader__limit(&io2_a_src, iop_a_src, - ((uint64_t)(self->private_impl.f_chunk_length))); - if (a_src) { - size_t n = ((size_t)(io2_a_src - a_src->data.ptr)); - a_src->meta.closed = a_src->meta.closed && (a_src->meta.wi <= n); - a_src->meta.wi = n; - } - v_r_mark = ((uint64_t)(iop_a_src - io0_a_src)); - { - if (a_dst) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - wuffs_base__status t_0 = wuffs_zlib__decoder__transform_io(&self->private_data.f_zlib, a_dst, a_src, wuffs_base__utility__empty_slice_u8()); - v_zlib_status = t_0; - if (a_dst) { - iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; - } - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - } - wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_chunk_length, ((uint32_t)(wuffs_private_impl__io__count_since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)))))); - io2_a_src = o_0_io2_a_src; - if (a_src) { - a_src->meta.closed = o_0_closed_a_src; - a_src->meta.wi = ((size_t)(io2_a_src - a_src->data.ptr)); - } - } - if (wuffs_base__status__is_ok(&v_zlib_status)) { - self->private_impl.f_metadata_is_zlib_compressed = false; - break; - } else if ( ! wuffs_base__status__is_suspension(&v_zlib_status)) { - status = v_zlib_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; - } - goto ok; - } - status = v_zlib_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - } else if (self->private_impl.f_chunk_type == 1951945833u) { - { - const bool o_1_closed_a_src = a_src->meta.closed; - const uint8_t *o_1_io2_a_src = io2_a_src; - wuffs_private_impl__io_reader__limit(&io2_a_src, iop_a_src, - ((uint64_t)(self->private_impl.f_chunk_length))); - if (a_src) { - size_t n = ((size_t)(io2_a_src - a_src->data.ptr)); - a_src->meta.closed = a_src->meta.closed && (a_src->meta.wi <= n); - a_src->meta.wi = n; - } - v_r_mark = ((uint64_t)(iop_a_src - io0_a_src)); - { - if (a_dst) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - wuffs_base__status t_1 = wuffs_zlib__decoder__transform_io(&self->private_data.f_zlib, a_dst, a_src, wuffs_base__utility__empty_slice_u8()); - v_zlib_status = t_1; - if (a_dst) { - iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; - } - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - } - wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_chunk_length, ((uint32_t)(wuffs_private_impl__io__count_since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)))))); - io2_a_src = o_1_io2_a_src; - if (a_src) { - a_src->meta.closed = o_1_closed_a_src; - a_src->meta.wi = ((size_t)(io2_a_src - a_src->data.ptr)); - } - } - if (wuffs_base__status__is_ok(&v_zlib_status)) { - self->private_impl.f_metadata_is_zlib_compressed = false; - break; - } else if ( ! wuffs_base__status__is_suspension(&v_zlib_status)) { - status = v_zlib_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; - } - goto ok; - } - status = v_zlib_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); - } else if (self->private_impl.f_chunk_type == 1951945850u) { - if (self->private_impl.f_ztxt_ri == self->private_impl.f_ztxt_wi) { - { - wuffs_base__io_buffer* o_2_v_w = v_w; - uint8_t *o_2_iop_v_w = iop_v_w; - uint8_t *o_2_io0_v_w = io0_v_w; - uint8_t *o_2_io1_v_w = io1_v_w; - uint8_t *o_2_io2_v_w = io2_v_w; - v_w = wuffs_private_impl__io_writer__set( - &u_w, - &iop_v_w, - &io0_v_w, - &io1_v_w, - &io2_v_w, - wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024), - self->private_impl.f_ztxt_hist_pos); - { - const bool o_3_closed_a_src = a_src->meta.closed; - const uint8_t *o_3_io2_a_src = io2_a_src; - wuffs_private_impl__io_reader__limit(&io2_a_src, iop_a_src, - ((uint64_t)(self->private_impl.f_chunk_length))); - if (a_src) { - size_t n = ((size_t)(io2_a_src - a_src->data.ptr)); - a_src->meta.closed = a_src->meta.closed && (a_src->meta.wi <= n); - a_src->meta.wi = n; - } - v_w_mark = ((uint64_t)(iop_v_w - io0_v_w)); - v_r_mark = ((uint64_t)(iop_a_src - io0_a_src)); - { - u_w.meta.wi = ((size_t)(iop_v_w - u_w.data.ptr)); - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - wuffs_base__status t_2 = wuffs_zlib__decoder__transform_io(&self->private_data.f_zlib, v_w, a_src, wuffs_base__utility__empty_slice_u8()); - v_zlib_status = t_2; - iop_v_w = u_w.data.ptr + u_w.meta.wi; - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - } - wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_chunk_length, ((uint32_t)(wuffs_private_impl__io__count_since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)))))); - v_num_written = wuffs_private_impl__io__count_since(v_w_mark, ((uint64_t)(iop_v_w - io0_v_w))); - io2_a_src = o_3_io2_a_src; - if (a_src) { - a_src->meta.closed = o_3_closed_a_src; - a_src->meta.wi = ((size_t)(io2_a_src - a_src->data.ptr)); - } - } - v_w = o_2_v_w; - iop_v_w = o_2_iop_v_w; - io0_v_w = o_2_io0_v_w; - io1_v_w = o_2_io1_v_w; - io2_v_w = o_2_io2_v_w; - } - if (v_num_written > 1024u) { - status = wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_i_o); - goto exit; - } - self->private_impl.f_ztxt_ri = 0u; - self->private_impl.f_ztxt_wi = ((uint32_t)(v_num_written)); - wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_ztxt_hist_pos, v_num_written); - } - while (self->private_impl.f_ztxt_ri < self->private_impl.f_ztxt_wi) { - v_c2 = WUFFS_PNG__LATIN_1[self->private_data.f_dst_palette[self->private_impl.f_ztxt_ri]]; - if (v_c2 == 0u) { - status = wuffs_base__make_status(wuffs_png__error__bad_text_chunk_not_latin_1); - goto exit; - } else if (v_c2 <= 127u) { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); - goto label__loop__continue; - } - self->private_impl.f_ztxt_ri += 1u; - (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)(v_c2))), iop_a_dst += 1); - } else { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 1u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); - goto label__loop__continue; - } - self->private_impl.f_ztxt_ri += 1u; - (wuffs_base__poke_u16le__no_bounds_check(iop_a_dst, v_c2), iop_a_dst += 2); - } - } - if (wuffs_base__status__is_ok(&v_zlib_status)) { - self->private_impl.f_metadata_is_zlib_compressed = false; - break; - } else if ( ! wuffs_base__status__is_suspension(&v_zlib_status)) { - status = v_zlib_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; - } - goto ok; - } else if (v_zlib_status.repr != wuffs_base__suspension__short_write) { - status = v_zlib_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); - } - } else { - status = wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_chunk_type); - goto exit; - } - } else if ((self->private_impl.f_chunk_type == 1951945833u) && (self->private_impl.f_metadata_fourcc == 1263947862u)) { - while (true) { - if (self->private_impl.f_chunk_length <= 0u) { - goto label__loop__break; - } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); - goto label__loop__continue; - } else if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); - goto label__loop__continue; - } - self->private_impl.f_chunk_length -= 1u; - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, v_c), iop_a_dst += 1); - } - } else { - while (true) { - if (self->private_impl.f_chunk_length <= 0u) { - if (self->private_impl.f_metadata_fourcc == 1263947851u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - goto label__loop__break; - } else if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); - goto label__loop__continue; - } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - if (v_c == 0u) { - self->private_impl.f_chunk_length -= 1u; - iop_a_src += 1u; - goto label__loop__break; - } - v_c2 = WUFFS_PNG__LATIN_1[v_c]; - if (v_c2 == 0u) { - status = wuffs_base__make_status(wuffs_png__error__bad_text_chunk_not_latin_1); - goto exit; - } else if (v_c2 <= 127u) { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(10); - goto label__loop__continue; - } - self->private_impl.f_chunk_length -= 1u; - iop_a_src += 1u; - (wuffs_base__poke_u8be__no_bounds_check(iop_a_dst, ((uint8_t)(v_c2))), iop_a_dst += 1); - } else { - if (((uint64_t)(io2_a_dst - iop_a_dst)) <= 1u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_write); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(11); - goto label__loop__continue; - } - self->private_impl.f_chunk_length -= 1u; - iop_a_src += 1u; - (wuffs_base__poke_u16le__no_bounds_check(iop_a_dst, v_c2), iop_a_dst += 2); - } - } - } - } - label__loop__break:; - if (self->private_impl.f_metadata_fourcc == 1263947851u) { - self->private_impl.f_metadata_fourcc = 1263947862u; - if (self->private_impl.f_chunk_type == 1951945833u) { - if (self->private_impl.f_chunk_length <= 1u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_length -= 2u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_3 = *iop_a_src++; - v_c = t_3; - } - if (v_c == 0u) { - self->private_impl.f_metadata_is_zlib_compressed = false; - } else if (v_c == 1u) { - self->private_impl.f_metadata_is_zlib_compressed = true; - } else { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_4 = *iop_a_src++; - v_c = t_4; - } - if ((v_c != 0u) && self->private_impl.f_metadata_is_zlib_compressed) { - status = wuffs_base__make_status(wuffs_png__error__unsupported_png_compression_method); - goto exit; - } - self->private_impl.f_metadata_fourcc -= 2u; - while (self->private_impl.f_metadata_fourcc != 1263947862u) { - self->private_impl.f_metadata_fourcc += 1u; - while (true) { - if (self->private_impl.f_chunk_length <= 0u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_length -= 1u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_5 = *iop_a_src++; - v_c = t_5; - } - if (v_c == 0u) { - break; - } - } - } - } else if (self->private_impl.f_chunk_type == 1951945850u) { - if (self->private_impl.f_chunk_length <= 0u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_impl.f_chunk_length -= 1u; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_6 = *iop_a_src++; - v_c = t_6; - } - if (v_c != 0u) { - status = wuffs_base__make_status(wuffs_png__error__unsupported_png_compression_method); - goto exit; - } - self->private_impl.f_metadata_is_zlib_compressed = true; - } - self->private_impl.f_call_sequence &= 239u; - status = wuffs_base__make_status(NULL); - goto ok; - } - } while (0); - label__goto_done__break:; - if (self->private_impl.f_chunk_length != 0u) { - status = wuffs_base__make_status(wuffs_png__error__bad_chunk); - goto exit; - } - self->private_data.s_do_tell_me_more.scratch = 4u; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); - if (self->private_data.s_do_tell_me_more.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_tell_me_more.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_do_tell_me_more.scratch; - self->private_impl.f_metadata_flavor = 0u; - self->private_impl.f_metadata_fourcc = 0u; - self->private_impl.f_metadata_x = 0u; - self->private_impl.f_metadata_y = 0u; - self->private_impl.f_metadata_z = 0u; - self->private_impl.f_call_sequence &= 239u; - status = wuffs_base__make_status(NULL); - goto ok; +// -------- func wbmp.decoder.restart_frame + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_wbmp__decoder__restart_frame( + wuffs_wbmp__decoder* self, + uint64_t a_index, + uint64_t a_io_position) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + if (self->private_impl.f_call_sequence < 32u) { + return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + } + if (a_index != 0u) { + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + self->private_impl.f_call_sequence = 40u; + self->private_impl.f_frame_config_io_position = a_io_position; + return wuffs_base__make_status(NULL); +} - ok: - self->private_impl.p_do_tell_me_more = 0; - goto exit; +// -------- func wbmp.decoder.set_report_metadata + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct +wuffs_wbmp__decoder__set_report_metadata( + wuffs_wbmp__decoder* self, + uint32_t a_fourcc, + bool a_report) { + return wuffs_base__make_empty_struct(); +} + +// -------- func wbmp.decoder.tell_me_more + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_wbmp__decoder__tell_me_more( + wuffs_wbmp__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__more_information* a_minfo, + wuffs_base__io_buffer* a_src) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 4)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); - goto suspend; - suspend: - self->private_impl.p_do_tell_me_more = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_do_tell_me_more.v_zlib_status = v_zlib_status; + status = wuffs_base__make_status(wuffs_base__error__no_more_information); + goto exit; + goto ok; + ok: goto exit; exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; } - return status; } -// -------- func png.decoder.workbuf_len +// -------- func wbmp.decoder.workbuf_len WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_png__decoder__workbuf_len( - const wuffs_png__decoder* self) { +wuffs_wbmp__decoder__workbuf_len( + const wuffs_wbmp__decoder* self) { if (!self) { return wuffs_base__utility__empty_range_ii_u64(); } @@ -62217,431 +76871,304 @@ wuffs_png__decoder__workbuf_len( return wuffs_base__utility__empty_range_ii_u64(); } - return wuffs_base__utility__make_range_ii_u64(self->private_impl.f_overall_workbuf_length, self->private_impl.f_overall_workbuf_length); + return wuffs_base__utility__make_range_ii_u64(0u, 0u); } -// -------- func png.decoder.filter_and_swizzle +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WBMP) + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WEBP) + +// ---------------- Status Codes Implementations + +const char wuffs_webp__error__bad_huffman_code_over_subscribed[] = "#webp: bad Huffman code (over-subscribed)"; +const char wuffs_webp__error__bad_huffman_code_under_subscribed[] = "#webp: bad Huffman code (under-subscribed)"; +const char wuffs_webp__error__bad_huffman_code[] = "#webp: bad Huffman code"; +const char wuffs_webp__error__bad_back_reference[] = "#webp: bad back-reference"; +const char wuffs_webp__error__bad_color_cache[] = "#webp: bad color cache"; +const char wuffs_webp__error__bad_header[] = "#webp: bad header"; +const char wuffs_webp__error__bad_transform[] = "#webp: bad transform"; +const char wuffs_webp__error__short_chunk[] = "#webp: short chunk"; +const char wuffs_webp__error__truncated_input[] = "#webp: truncated input"; +const char wuffs_webp__error__unsupported_number_of_huffman_groups[] = "#webp: unsupported number of Huffman groups"; +const char wuffs_webp__error__unsupported_transform_after_color_indexing_transform[] = "#webp: unsupported transform after color indexing transform"; +const char wuffs_webp__error__unsupported_webp_file[] = "#webp: unsupported WebP file"; +const char wuffs_webp__error__internal_error_inconsistent_huffman_code[] = "#webp: internal error: inconsistent Huffman code"; +const char wuffs_webp__error__internal_error_inconsistent_dst_buffer[] = "#webp: internal error: inconsistent dst buffer"; +const char wuffs_webp__error__internal_error_inconsistent_n_bits[] = "#webp: internal error: inconsistent n_bits"; + +// ---------------- Private Consts + +static const uint8_t +WUFFS_WEBP__CODE_LENGTH_CODE_ORDER[19] WUFFS_BASE__POTENTIALLY_UNUSED = { + 17u, 18u, 0u, 1u, 2u, 3u, 4u, 5u, + 16u, 6u, 7u, 8u, 9u, 10u, 11u, 12u, + 13u, 14u, 15u, +}; + +static const uint8_t +WUFFS_WEBP__REPEAT_N_BITS[4] WUFFS_BASE__POTENTIALLY_UNUSED = { + 2u, 3u, 7u, 0u, +}; + +static const uint8_t +WUFFS_WEBP__REPEAT_COUNTS[4] WUFFS_BASE__POTENTIALLY_UNUSED = { + 3u, 3u, 11u, 0u, +}; + +static const uint16_t +WUFFS_WEBP__HUFFMAN_TABLE_BASE_OFFSETS[5] WUFFS_BASE__POTENTIALLY_UNUSED = { + 1612u, 0u, 511u, 1022u, 1533u, +}; + +static const uint8_t +WUFFS_WEBP__DISTANCE_MAP[120] WUFFS_BASE__POTENTIALLY_UNUSED = { + 24u, 7u, 23u, 25u, 40u, 6u, 39u, 41u, + 22u, 26u, 38u, 42u, 56u, 5u, 55u, 57u, + 21u, 27u, 54u, 58u, 37u, 43u, 72u, 4u, + 71u, 73u, 20u, 28u, 53u, 59u, 70u, 74u, + 36u, 44u, 88u, 69u, 75u, 52u, 60u, 3u, + 87u, 89u, 19u, 29u, 86u, 90u, 35u, 45u, + 68u, 76u, 85u, 91u, 51u, 61u, 104u, 2u, + 103u, 105u, 18u, 30u, 102u, 106u, 34u, 46u, + 84u, 92u, 67u, 77u, 101u, 107u, 50u, 62u, + 120u, 1u, 119u, 121u, 83u, 93u, 17u, 31u, + 100u, 108u, 66u, 78u, 118u, 122u, 33u, 47u, + 117u, 123u, 49u, 63u, 99u, 109u, 82u, 94u, + 0u, 116u, 124u, 65u, 79u, 16u, 32u, 98u, + 110u, 48u, 115u, 125u, 81u, 95u, 64u, 114u, + 126u, 97u, 111u, 80u, 113u, 127u, 96u, 112u, +}; + +// ---------------- Private Initializer Prototypes + +// ---------------- Private Function Prototypes WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__filter_and_swizzle( - wuffs_png__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__slice_u8 a_workbuf) { - return (*self->private_impl.choosy_filter_and_swizzle)(self, a_dst, a_workbuf); -} +wuffs_webp__decoder__decode_huffman_groups( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src, + uint32_t a_n_huffman_groups); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__filter_and_swizzle__choosy_default( - wuffs_png__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__slice_u8 a_workbuf) { - wuffs_base__pixel_format v_dst_pixfmt = {0}; - uint32_t v_dst_bits_per_pixel = 0; - uint64_t v_dst_bytes_per_pixel = 0; - uint64_t v_dst_bytes_per_row0 = 0; - uint64_t v_dst_bytes_per_row1 = 0; - wuffs_base__slice_u8 v_dst_palette = {0}; - wuffs_base__table_u8 v_tab = {0}; - uint32_t v_y = 0; - wuffs_base__slice_u8 v_dst = {0}; - uint8_t v_filter = 0; - wuffs_base__slice_u8 v_curr_row = {0}; - wuffs_base__slice_u8 v_prev_row = {0}; +wuffs_webp__decoder__decode_huffman_tree( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src, + uint32_t a_hg, + uint32_t a_ht); - v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); - v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); - if ((v_dst_bits_per_pixel & 7u) != 0u) { - return wuffs_base__make_status(wuffs_base__error__unsupported_option); - } - v_dst_bytes_per_pixel = ((uint64_t)((v_dst_bits_per_pixel / 8u))); - v_dst_bytes_per_row0 = (((uint64_t)(self->private_impl.f_frame_rect_x0)) * v_dst_bytes_per_pixel); - v_dst_bytes_per_row1 = (((uint64_t)(self->private_impl.f_frame_rect_x1)) * v_dst_bytes_per_pixel); - v_dst_palette = wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)); - v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); - if (v_dst_bytes_per_row1 < ((uint64_t)(v_tab.width))) { - v_tab = wuffs_base__table_u8__subtable_ij(v_tab, - 0u, - 0u, - v_dst_bytes_per_row1, - ((uint64_t)(v_tab.height))); - } - if (v_dst_bytes_per_row0 < ((uint64_t)(v_tab.width))) { - v_tab = wuffs_base__table_u8__subtable_ij(v_tab, - v_dst_bytes_per_row0, - 0u, - ((uint64_t)(v_tab.width)), - ((uint64_t)(v_tab.height))); - } else { - v_tab = wuffs_base__table_u8__subtable_ij(v_tab, - 0u, - 0u, - 0u, - 0u); - } - v_y = self->private_impl.f_frame_rect_y0; - while (v_y < self->private_impl.f_frame_rect_y1) { - v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, v_y); - if (1u > ((uint64_t)(a_workbuf.len))) { - return wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_workbuf_length); - } - v_filter = a_workbuf.ptr[0u]; - a_workbuf = wuffs_base__slice_u8__subslice_i(a_workbuf, 1u); - if (self->private_impl.f_pass_bytes_per_row > ((uint64_t)(a_workbuf.len))) { - return wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_workbuf_length); - } - v_curr_row = wuffs_base__slice_u8__subslice_j(a_workbuf, self->private_impl.f_pass_bytes_per_row); - a_workbuf = wuffs_base__slice_u8__subslice_i(a_workbuf, self->private_impl.f_pass_bytes_per_row); - if (v_filter == 0u) { - } else if (v_filter == 1u) { - wuffs_png__decoder__filter_1(self, v_curr_row); - } else if (v_filter == 2u) { - wuffs_png__decoder__filter_2(self, v_curr_row, v_prev_row); - } else if (v_filter == 3u) { - wuffs_png__decoder__filter_3(self, v_curr_row, v_prev_row); - } else if (v_filter == 4u) { - wuffs_png__decoder__filter_4(self, v_curr_row, v_prev_row); - } else { - return wuffs_base__make_status(wuffs_png__error__bad_filter); - } - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, v_curr_row); - v_prev_row = v_curr_row; - v_y += 1u; - } - return wuffs_base__make_status(NULL); -} +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_huffman_tree_simple( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src, + uint32_t a_hg, + uint32_t a_ht); -// -------- func png.decoder.filter_and_swizzle_tricky +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_code_length_code_lengths( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src); WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_png__decoder__filter_and_swizzle_tricky( - wuffs_png__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__slice_u8 a_workbuf) { - wuffs_base__pixel_format v_dst_pixfmt = {0}; - uint32_t v_dst_bits_per_pixel = 0; - uint64_t v_dst_bytes_per_pixel = 0; - uint64_t v_dst_bytes_per_row1 = 0; - wuffs_base__slice_u8 v_dst_palette = {0}; - wuffs_base__table_u8 v_tab = {0}; - uint64_t v_src_bytes_per_pixel = 0; - uint32_t v_x = 0; - uint32_t v_y = 0; - uint64_t v_i = 0; - wuffs_base__slice_u8 v_dst = {0}; - uint8_t v_filter = 0; - wuffs_base__slice_u8 v_s = {0}; - wuffs_base__slice_u8 v_curr_row = {0}; - wuffs_base__slice_u8 v_prev_row = {0}; - uint8_t v_bits_unpacked[8] = {0}; - uint8_t v_bits_packed = 0; - uint8_t v_packs_remaining = 0; - uint8_t v_multiplier = 0; - uint8_t v_shift = 0; +wuffs_webp__decoder__build_code_lengths_huffman_nodes( + wuffs_webp__decoder* self); - v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); - v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); - if ((v_dst_bits_per_pixel & 7u) != 0u) { - return wuffs_base__make_status(wuffs_base__error__unsupported_option); - } - v_dst_bytes_per_pixel = ((uint64_t)((v_dst_bits_per_pixel / 8u))); - v_dst_bytes_per_row1 = (((uint64_t)(self->private_impl.f_frame_rect_x1)) * v_dst_bytes_per_pixel); - v_dst_palette = wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)); - v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); - v_src_bytes_per_pixel = 1u; - if (self->private_impl.f_depth >= 8u) { - v_src_bytes_per_pixel = (((uint64_t)(WUFFS_PNG__NUM_CHANNELS[self->private_impl.f_color_type])) * ((uint64_t)(((uint8_t)(self->private_impl.f_depth >> 3u))))); - } - if (self->private_impl.f_chunk_type_array[0u] == 73u) { - v_y = ((uint32_t)(WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][5u])); - } else { - v_y = self->private_impl.f_frame_rect_y0; - } - while (v_y < self->private_impl.f_frame_rect_y1) { - v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, v_y); - if (v_dst_bytes_per_row1 < ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row1); - } - if (1u > ((uint64_t)(a_workbuf.len))) { - return wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_workbuf_length); - } - v_filter = a_workbuf.ptr[0u]; - a_workbuf = wuffs_base__slice_u8__subslice_i(a_workbuf, 1u); - if (self->private_impl.f_pass_bytes_per_row > ((uint64_t)(a_workbuf.len))) { - return wuffs_base__make_status(wuffs_png__error__internal_error_inconsistent_workbuf_length); - } - v_curr_row = wuffs_base__slice_u8__subslice_j(a_workbuf, self->private_impl.f_pass_bytes_per_row); - a_workbuf = wuffs_base__slice_u8__subslice_i(a_workbuf, self->private_impl.f_pass_bytes_per_row); - if (v_filter == 0u) { - } else if (v_filter == 1u) { - wuffs_png__decoder__filter_1(self, v_curr_row); - } else if (v_filter == 2u) { - wuffs_png__decoder__filter_2(self, v_curr_row, v_prev_row); - } else if (v_filter == 3u) { - wuffs_png__decoder__filter_3(self, v_curr_row, v_prev_row); - } else if (v_filter == 4u) { - wuffs_png__decoder__filter_4(self, v_curr_row, v_prev_row); - } else { - return wuffs_base__make_status(wuffs_png__error__bad_filter); - } - v_s = v_curr_row; - if (self->private_impl.f_chunk_type_array[0u] == 73u) { - v_x = ((uint32_t)(WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][2u])); - } else { - v_x = self->private_impl.f_frame_rect_x0; - } - if (self->private_impl.f_depth == 8u) { - while (v_x < self->private_impl.f_frame_rect_x1) { - v_i = (((uint64_t)(v_x)) * v_dst_bytes_per_pixel); - if (v_i <= ((uint64_t)(v_dst.len))) { - if (self->private_impl.f_color_type == 4u) { - if (2u <= ((uint64_t)(v_s.len))) { - v_bits_unpacked[0u] = v_s.ptr[0u]; - v_bits_unpacked[1u] = v_s.ptr[0u]; - v_bits_unpacked[2u] = v_s.ptr[0u]; - v_bits_unpacked[3u] = v_s.ptr[1u]; - v_s = wuffs_base__slice_u8__subslice_i(v_s, 2u); - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(v_bits_unpacked, 4)); - } - } else if (((uint32_t)(self->private_impl.f_remap_transparency)) != 0u) { - if (self->private_impl.f_color_type == 0u) { - if (1u <= ((uint64_t)(v_s.len))) { - v_bits_unpacked[0u] = v_s.ptr[0u]; - v_bits_unpacked[1u] = v_s.ptr[0u]; - v_bits_unpacked[2u] = v_s.ptr[0u]; - v_bits_unpacked[3u] = 255u; - v_s = wuffs_base__slice_u8__subslice_i(v_s, 1u); - if (((uint32_t)(self->private_impl.f_remap_transparency)) == ((((uint32_t)(v_bits_unpacked[0u])) << 0u) | - (((uint32_t)(v_bits_unpacked[1u])) << 8u) | - (((uint32_t)(v_bits_unpacked[2u])) << 16u) | - (((uint32_t)(v_bits_unpacked[3u])) << 24u))) { - v_bits_unpacked[0u] = 0u; - v_bits_unpacked[1u] = 0u; - v_bits_unpacked[2u] = 0u; - v_bits_unpacked[3u] = 0u; - } - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(v_bits_unpacked, 4)); - } - } else { - if (3u <= ((uint64_t)(v_s.len))) { - v_bits_unpacked[0u] = v_s.ptr[2u]; - v_bits_unpacked[1u] = v_s.ptr[1u]; - v_bits_unpacked[2u] = v_s.ptr[0u]; - v_bits_unpacked[3u] = 255u; - v_s = wuffs_base__slice_u8__subslice_i(v_s, 3u); - if (((uint32_t)(self->private_impl.f_remap_transparency)) == ((((uint32_t)(v_bits_unpacked[0u])) << 0u) | - (((uint32_t)(v_bits_unpacked[1u])) << 8u) | - (((uint32_t)(v_bits_unpacked[2u])) << 16u) | - (((uint32_t)(v_bits_unpacked[3u])) << 24u))) { - v_bits_unpacked[0u] = 0u; - v_bits_unpacked[1u] = 0u; - v_bits_unpacked[2u] = 0u; - v_bits_unpacked[3u] = 0u; - } - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(v_bits_unpacked, 4)); - } - } - } else if (v_src_bytes_per_pixel <= ((uint64_t)(v_s.len))) { - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__slice_u8__subslice_j(v_s, v_src_bytes_per_pixel)); - v_s = wuffs_base__slice_u8__subslice_i(v_s, v_src_bytes_per_pixel); - } - } - v_x += (((uint32_t)(1u)) << WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][0u]); - } - } else if (self->private_impl.f_depth < 8u) { - v_multiplier = 1u; - if (self->private_impl.f_color_type == 0u) { - v_multiplier = WUFFS_PNG__LOW_BIT_DEPTH_MULTIPLIERS[self->private_impl.f_depth]; - } - v_shift = ((uint8_t)(((uint8_t)(8u - self->private_impl.f_depth)) & 7u)); - v_packs_remaining = 0u; - while (v_x < self->private_impl.f_frame_rect_x1) { - v_i = (((uint64_t)(v_x)) * v_dst_bytes_per_pixel); - if (v_i <= ((uint64_t)(v_dst.len))) { - if ((v_packs_remaining == 0u) && (1u <= ((uint64_t)(v_s.len)))) { - v_packs_remaining = WUFFS_PNG__LOW_BIT_DEPTH_NUM_PACKS[self->private_impl.f_depth]; - v_bits_packed = v_s.ptr[0u]; - v_s = wuffs_base__slice_u8__subslice_i(v_s, 1u); - } - v_bits_unpacked[0u] = ((uint8_t)(((uint8_t)(v_bits_packed >> v_shift)) * v_multiplier)); - v_bits_packed = ((uint8_t)(v_bits_packed << self->private_impl.f_depth)); - v_packs_remaining = ((uint8_t)(v_packs_remaining - 1u)); - if (((uint32_t)(self->private_impl.f_remap_transparency)) != 0u) { - v_bits_unpacked[1u] = v_bits_unpacked[0u]; - v_bits_unpacked[2u] = v_bits_unpacked[0u]; - v_bits_unpacked[3u] = 255u; - if (((uint32_t)(self->private_impl.f_remap_transparency)) == ((((uint32_t)(v_bits_unpacked[0u])) << 0u) | - (((uint32_t)(v_bits_unpacked[1u])) << 8u) | - (((uint32_t)(v_bits_unpacked[2u])) << 16u) | - (((uint32_t)(v_bits_unpacked[3u])) << 24u))) { - v_bits_unpacked[0u] = 0u; - v_bits_unpacked[1u] = 0u; - v_bits_unpacked[2u] = 0u; - v_bits_unpacked[3u] = 0u; - } - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(v_bits_unpacked, 4)); - } else { - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(v_bits_unpacked, 1)); - } - } - v_x += (((uint32_t)(1u)) << WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][0u]); - } - } else { - while (v_x < self->private_impl.f_frame_rect_x1) { - v_i = (((uint64_t)(v_x)) * v_dst_bytes_per_pixel); - if (v_i <= ((uint64_t)(v_dst.len))) { - if (self->private_impl.f_color_type == 0u) { - if (2u <= ((uint64_t)(v_s.len))) { - v_bits_unpacked[0u] = v_s.ptr[1u]; - v_bits_unpacked[1u] = v_s.ptr[0u]; - v_bits_unpacked[2u] = v_s.ptr[1u]; - v_bits_unpacked[3u] = v_s.ptr[0u]; - v_bits_unpacked[4u] = v_s.ptr[1u]; - v_bits_unpacked[5u] = v_s.ptr[0u]; - v_bits_unpacked[6u] = 255u; - v_bits_unpacked[7u] = 255u; - v_s = wuffs_base__slice_u8__subslice_i(v_s, 2u); - if (self->private_impl.f_remap_transparency == ((((uint64_t)(v_bits_unpacked[0u])) << 0u) | - (((uint64_t)(v_bits_unpacked[1u])) << 8u) | - (((uint64_t)(v_bits_unpacked[2u])) << 16u) | - (((uint64_t)(v_bits_unpacked[3u])) << 24u) | - (((uint64_t)(v_bits_unpacked[4u])) << 32u) | - (((uint64_t)(v_bits_unpacked[5u])) << 40u) | - (((uint64_t)(v_bits_unpacked[6u])) << 48u) | - (((uint64_t)(v_bits_unpacked[7u])) << 56u))) { - v_bits_unpacked[0u] = 0u; - v_bits_unpacked[1u] = 0u; - v_bits_unpacked[2u] = 0u; - v_bits_unpacked[3u] = 0u; - v_bits_unpacked[4u] = 0u; - v_bits_unpacked[5u] = 0u; - v_bits_unpacked[6u] = 0u; - v_bits_unpacked[7u] = 0u; - } - } - } else if (self->private_impl.f_color_type == 2u) { - if (6u <= ((uint64_t)(v_s.len))) { - v_bits_unpacked[0u] = v_s.ptr[5u]; - v_bits_unpacked[1u] = v_s.ptr[4u]; - v_bits_unpacked[2u] = v_s.ptr[3u]; - v_bits_unpacked[3u] = v_s.ptr[2u]; - v_bits_unpacked[4u] = v_s.ptr[1u]; - v_bits_unpacked[5u] = v_s.ptr[0u]; - v_bits_unpacked[6u] = 255u; - v_bits_unpacked[7u] = 255u; - v_s = wuffs_base__slice_u8__subslice_i(v_s, 6u); - if (self->private_impl.f_remap_transparency == ((((uint64_t)(v_bits_unpacked[0u])) << 0u) | - (((uint64_t)(v_bits_unpacked[1u])) << 8u) | - (((uint64_t)(v_bits_unpacked[2u])) << 16u) | - (((uint64_t)(v_bits_unpacked[3u])) << 24u) | - (((uint64_t)(v_bits_unpacked[4u])) << 32u) | - (((uint64_t)(v_bits_unpacked[5u])) << 40u) | - (((uint64_t)(v_bits_unpacked[6u])) << 48u) | - (((uint64_t)(v_bits_unpacked[7u])) << 56u))) { - v_bits_unpacked[0u] = 0u; - v_bits_unpacked[1u] = 0u; - v_bits_unpacked[2u] = 0u; - v_bits_unpacked[3u] = 0u; - v_bits_unpacked[4u] = 0u; - v_bits_unpacked[5u] = 0u; - v_bits_unpacked[6u] = 0u; - v_bits_unpacked[7u] = 0u; - } - } - } else if (self->private_impl.f_color_type == 4u) { - if (4u <= ((uint64_t)(v_s.len))) { - v_bits_unpacked[0u] = v_s.ptr[1u]; - v_bits_unpacked[1u] = v_s.ptr[0u]; - v_bits_unpacked[2u] = v_s.ptr[1u]; - v_bits_unpacked[3u] = v_s.ptr[0u]; - v_bits_unpacked[4u] = v_s.ptr[1u]; - v_bits_unpacked[5u] = v_s.ptr[0u]; - v_bits_unpacked[6u] = v_s.ptr[3u]; - v_bits_unpacked[7u] = v_s.ptr[2u]; - v_s = wuffs_base__slice_u8__subslice_i(v_s, 4u); - } - } else { - if (8u <= ((uint64_t)(v_s.len))) { - v_bits_unpacked[0u] = v_s.ptr[5u]; - v_bits_unpacked[1u] = v_s.ptr[4u]; - v_bits_unpacked[2u] = v_s.ptr[3u]; - v_bits_unpacked[3u] = v_s.ptr[2u]; - v_bits_unpacked[4u] = v_s.ptr[1u]; - v_bits_unpacked[5u] = v_s.ptr[0u]; - v_bits_unpacked[6u] = v_s.ptr[7u]; - v_bits_unpacked[7u] = v_s.ptr[6u]; - v_s = wuffs_base__slice_u8__subslice_i(v_s, 8u); - } - } - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, wuffs_base__slice_u8__subslice_i(v_dst, v_i), v_dst_palette, wuffs_base__make_slice_u8(v_bits_unpacked, 8)); - } - v_x += (((uint32_t)(1u)) << WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][0u]); - } - } - v_prev_row = v_curr_row; - v_y += (((uint32_t)(1u)) << WUFFS_PNG__INTERLACING[self->private_impl.f_interlace_pass][3u]); - } - return wuffs_base__make_status(NULL); -} +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__build_huffman_nodes( + wuffs_webp__decoder* self, + uint32_t a_hg, + uint32_t a_ht); -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__PNG) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__build_code_lengths( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src); -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__SHA256) +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_pixels_slow( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_dst, + wuffs_base__io_buffer* a_src, + uint32_t a_width, + uint32_t a_height, + wuffs_base__slice_u8 a_tile_data, + uint32_t a_tile_size_log2); -// ---------------- Status Codes Implementations +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_webp__decoder__apply_transform_predictor( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_pix, + wuffs_base__slice_u8 a_tile_data); -// ---------------- Private Consts +WUFFS_BASE__GENERATED_C_CODE +static uint32_t +wuffs_webp__decoder__absolute_difference( + const wuffs_webp__decoder* self, + uint32_t a_a, + uint32_t a_b); + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_webp__decoder__mode12( + const wuffs_webp__decoder* self, + uint8_t a_l, + uint8_t a_t, + uint8_t a_tl); + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_webp__decoder__mode13( + const wuffs_webp__decoder* self, + uint8_t a_l, + uint8_t a_t, + uint8_t a_tl); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_webp__decoder__apply_transform_cross_color( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_pix, + wuffs_base__slice_u8 a_tile_data); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_webp__decoder__apply_transform_subtract_green( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_pix); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_webp__decoder__apply_transform_color_indexing( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_pix); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__do_decode_image_config( + wuffs_webp__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__do_decode_image_config_limited( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__do_decode_image_config_limited_vp8l( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__do_decode_frame_config( + wuffs_webp__decoder* self, + wuffs_base__frame_config* a_dst, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__do_decode_frame( + wuffs_webp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts); -static const uint32_t -WUFFS_SHA256__INITIAL_SHA256_H[8] WUFFS_BASE__POTENTIALLY_UNUSED = { - 1779033703u, 3144134277u, 1013904242u, 2773480762u, 1359893119u, 2600822924u, 528734635u, 1541459225u, -}; +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_transform( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf); -static const uint32_t -WUFFS_SHA256__K[64] WUFFS_BASE__POTENTIALLY_UNUSED = { - 1116352408u, 1899447441u, 3049323471u, 3921009573u, 961987163u, 1508970993u, 2453635748u, 2870763221u, - 3624381080u, 310598401u, 607225278u, 1426881987u, 1925078388u, 2162078206u, 2614888103u, 3248222580u, - 3835390401u, 4022224774u, 264347078u, 604807628u, 770255983u, 1249150122u, 1555081692u, 1996064986u, - 2554220882u, 2821834349u, 2952996808u, 3210313671u, 3336571891u, 3584528711u, 113926993u, 338241895u, - 666307205u, 773529912u, 1294757372u, 1396182291u, 1695183700u, 1986661051u, 2177026350u, 2456956037u, - 2730485921u, 2820302411u, 3259730800u, 3345764771u, 3516065817u, 3600352804u, 4094571909u, 275423344u, - 430227734u, 506948616u, 659060556u, 883997877u, 958139571u, 1322822218u, 1537002063u, 1747873779u, - 1955562222u, 2024104815u, 2227730452u, 2361852424u, 2428436474u, 2756734187u, 3204031479u, 3329325298u, -}; +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_color_cache_parameters( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src); -// ---------------- Private Initializer Prototypes +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_hg_table( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src, + uint32_t a_width, + wuffs_base__slice_u8 a_workbuf); -// ---------------- Private Function Prototypes +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_pixels( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_dst, + wuffs_base__io_buffer* a_src, + uint32_t a_width, + uint32_t a_height, + wuffs_base__slice_u8 a_tile_data, + uint32_t a_tile_size_log2); WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__empty_struct -wuffs_sha256__hasher__up( - wuffs_sha256__hasher* self, - wuffs_base__slice_u8 a_x); +static wuffs_base__status +wuffs_webp__decoder__swizzle( + wuffs_webp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__slice_u8 a_src, + wuffs_base__pixel_blend a_blend); // ---------------- VTables -const wuffs_base__hasher_bitvec256__func_ptrs -wuffs_sha256__hasher__func_ptrs_for__wuffs_base__hasher_bitvec256 = { - (wuffs_base__bitvec256(*)(const void*))(&wuffs_sha256__hasher__checksum_bitvec256), +const wuffs_base__image_decoder__func_ptrs +wuffs_webp__decoder__func_ptrs_for__wuffs_base__image_decoder = { + (wuffs_base__status(*)(void*, + wuffs_base__pixel_buffer*, + wuffs_base__io_buffer*, + wuffs_base__pixel_blend, + wuffs_base__slice_u8, + wuffs_base__decode_frame_options*))(&wuffs_webp__decoder__decode_frame), + (wuffs_base__status(*)(void*, + wuffs_base__frame_config*, + wuffs_base__io_buffer*))(&wuffs_webp__decoder__decode_frame_config), + (wuffs_base__status(*)(void*, + wuffs_base__image_config*, + wuffs_base__io_buffer*))(&wuffs_webp__decoder__decode_image_config), + (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_webp__decoder__frame_dirty_rect), (uint64_t(*)(const void*, - uint32_t))(&wuffs_sha256__hasher__get_quirk), + uint32_t))(&wuffs_webp__decoder__get_quirk), + (uint32_t(*)(const void*))(&wuffs_webp__decoder__num_animation_loops), + (uint64_t(*)(const void*))(&wuffs_webp__decoder__num_decoded_frame_configs), + (uint64_t(*)(const void*))(&wuffs_webp__decoder__num_decoded_frames), + (wuffs_base__status(*)(void*, + uint64_t, + uint64_t))(&wuffs_webp__decoder__restart_frame), (wuffs_base__status(*)(void*, uint32_t, - uint64_t))(&wuffs_sha256__hasher__set_quirk), + uint64_t))(&wuffs_webp__decoder__set_quirk), (wuffs_base__empty_struct(*)(void*, - wuffs_base__slice_u8))(&wuffs_sha256__hasher__update), - (wuffs_base__bitvec256(*)(void*, - wuffs_base__slice_u8))(&wuffs_sha256__hasher__update_bitvec256), + uint32_t, + bool))(&wuffs_webp__decoder__set_report_metadata), + (wuffs_base__status(*)(void*, + wuffs_base__io_buffer*, + wuffs_base__more_information*, + wuffs_base__io_buffer*))(&wuffs_webp__decoder__tell_me_more), + (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_webp__decoder__workbuf_len), }; // ---------------- Initializer Implementations wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_sha256__hasher__initialize( - wuffs_sha256__hasher* self, +wuffs_webp__decoder__initialize( + wuffs_webp__decoder* self, size_t sizeof_star_self, uint64_t wuffs_version, uint32_t options){ @@ -62679,674 +77206,1787 @@ wuffs_sha256__hasher__initialize( } self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__hasher_bitvec256.vtable_name = - wuffs_base__hasher_bitvec256__vtable_name; - self->private_impl.vtable_for__wuffs_base__hasher_bitvec256.function_pointers = - (const void*)(&wuffs_sha256__hasher__func_ptrs_for__wuffs_base__hasher_bitvec256); + self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = + wuffs_base__image_decoder__vtable_name; + self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = + (const void*)(&wuffs_webp__decoder__func_ptrs_for__wuffs_base__image_decoder); + return wuffs_base__make_status(NULL); +} + +wuffs_webp__decoder* +wuffs_webp__decoder__alloc(void) { + wuffs_webp__decoder* x = + (wuffs_webp__decoder*)(calloc(1, sizeof(wuffs_webp__decoder))); + if (!x) { + return NULL; + } + if (wuffs_webp__decoder__initialize( + x, sizeof(wuffs_webp__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_webp__decoder(void) { + return sizeof(wuffs_webp__decoder); +} + +// ---------------- Function Implementations + +// -------- func webp.decoder.decode_huffman_groups + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_huffman_groups( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src, + uint32_t a_n_huffman_groups) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_hg = 0; + uint32_t v_ht = 0; + + uint32_t coro_susp_point = self->private_impl.p_decode_huffman_groups; + if (coro_susp_point) { + v_hg = self->private_data.s_decode_huffman_groups.v_hg; + v_ht = self->private_data.s_decode_huffman_groups.v_ht; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + v_hg = 0u; + while (v_hg < a_n_huffman_groups) { + v_ht = 0u; + while (v_ht < 5u) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_webp__decoder__decode_huffman_tree(self, a_src, v_hg, v_ht); + if (status.repr) { + goto suspend; + } + v_ht += 1u; + } + v_hg += 1u; + } + + goto ok; + ok: + self->private_impl.p_decode_huffman_groups = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_huffman_groups = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_huffman_groups.v_hg = v_hg; + self->private_data.s_decode_huffman_groups.v_ht = v_ht; + + goto exit; + exit: + return status; +} + +// -------- func webp.decoder.decode_huffman_tree + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_huffman_tree( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src, + uint32_t a_hg, + uint32_t a_ht) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint32_t v_use_simple = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_huffman_tree; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (a_ht >= 4u) { + self->private_impl.f_ht_n_symbols = 40u; + } else if (a_ht > 0u) { + self->private_impl.f_ht_n_symbols = 256u; + } else if (self->private_impl.f_color_cache_bits == 0u) { + self->private_impl.f_ht_n_symbols = 280u; + } else { + self->private_impl.f_ht_n_symbols = (280u + (((uint32_t)(1u)) << self->private_impl.f_color_cache_bits)); + } + if (self->private_impl.f_n_bits < 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + self->private_impl.f_bits = ((uint32_t)(v_c8)); + self->private_impl.f_n_bits = 8u; + } + v_use_simple = (self->private_impl.f_bits & 1u); + self->private_impl.f_bits >>= 1u; + self->private_impl.f_n_bits -= 1u; + if (v_use_simple != 0u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + status = wuffs_webp__decoder__decode_huffman_tree_simple(self, a_src, a_hg, a_ht); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } else { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + status = wuffs_webp__decoder__decode_code_length_code_lengths(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + v_status = wuffs_webp__decoder__build_code_lengths_huffman_nodes(self); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + status = wuffs_webp__decoder__build_code_lengths(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + v_status = wuffs_webp__decoder__build_huffman_nodes(self, a_hg, a_ht); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + } + + ok: + self->private_impl.p_decode_huffman_tree = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_huffman_tree = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func webp.decoder.decode_huffman_tree_simple + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_huffman_tree_simple( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src, + uint32_t a_hg, + uint32_t a_ht) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint32_t v_use_second_symbol = 0; + uint32_t v_first_symbol_n_bits = 0; + uint32_t v_symbol0 = 0; + uint32_t v_symbol1 = 0; + uint32_t v_base_offset = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_huffman_tree_simple; + if (coro_susp_point) { + v_use_second_symbol = self->private_data.s_decode_huffman_tree_simple.v_use_second_symbol; + v_first_symbol_n_bits = self->private_data.s_decode_huffman_tree_simple.v_first_symbol_n_bits; + v_symbol0 = self->private_data.s_decode_huffman_tree_simple.v_symbol0; + v_base_offset = self->private_data.s_decode_huffman_tree_simple.v_base_offset; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_n_bits < 2u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + if (self->private_impl.f_n_bits >= 2u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + v_use_second_symbol = (self->private_impl.f_bits & 1u); + v_first_symbol_n_bits = ((((self->private_impl.f_bits & 2u) >> 1u) * 7u) + 1u); + self->private_impl.f_bits >>= 2u; + self->private_impl.f_n_bits -= 2u; + if (self->private_impl.f_n_bits < v_first_symbol_n_bits) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + if (self->private_impl.f_n_bits >= v_first_symbol_n_bits) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + v_symbol0 = (self->private_impl.f_bits & ((((uint32_t)(1u)) << v_first_symbol_n_bits) - 1u)); + self->private_impl.f_bits >>= v_first_symbol_n_bits; + self->private_impl.f_n_bits -= v_first_symbol_n_bits; + v_base_offset = ((uint32_t)(WUFFS_WEBP__HUFFMAN_TABLE_BASE_OFFSETS[a_ht])); + if (v_use_second_symbol != 0u) { + if (self->private_impl.f_n_bits < 8u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; + } + if (self->private_impl.f_n_bits >= 8u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + v_symbol1 = (self->private_impl.f_bits & 255u); + self->private_impl.f_bits >>= 8u; + self->private_impl.f_n_bits -= 8u; + self->private_data.f_huffman_nodes[a_hg][(v_base_offset + 0u)] = ((uint16_t)((v_base_offset + 1u))); + self->private_data.f_huffman_nodes[a_hg][(v_base_offset + 1u)] = ((uint16_t)((v_symbol0 | 32768u))); + self->private_data.f_huffman_nodes[a_hg][(v_base_offset + 2u)] = ((uint16_t)((v_symbol1 | 32768u))); + } else { + self->private_data.f_huffman_nodes[a_hg][v_base_offset] = ((uint16_t)((v_symbol0 | 32768u))); + } + + goto ok; + ok: + self->private_impl.p_decode_huffman_tree_simple = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_huffman_tree_simple = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_huffman_tree_simple.v_use_second_symbol = v_use_second_symbol; + self->private_data.s_decode_huffman_tree_simple.v_first_symbol_n_bits = v_first_symbol_n_bits; + self->private_data.s_decode_huffman_tree_simple.v_symbol0 = v_symbol0; + self->private_data.s_decode_huffman_tree_simple.v_base_offset = v_base_offset; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func webp.decoder.decode_code_length_code_lengths + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__decode_code_length_code_lengths( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint32_t v_n_codes = 0; + uint32_t v_i = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_code_length_code_lengths; + if (coro_susp_point) { + v_n_codes = self->private_data.s_decode_code_length_code_lengths.v_n_codes; + v_i = self->private_data.s_decode_code_length_code_lengths.v_i; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_n_bits < 4u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + if (self->private_impl.f_n_bits >= 4u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + v_n_codes = ((self->private_impl.f_bits & 15u) + 4u); + self->private_impl.f_bits >>= 4u; + self->private_impl.f_n_bits -= 4u; + v_i = 0u; + while (v_i < v_n_codes) { + if (self->private_impl.f_n_bits < 3u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + if (self->private_impl.f_n_bits >= 3u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + self->private_impl.f_code_length_code_lengths[WUFFS_WEBP__CODE_LENGTH_CODE_ORDER[v_i]] = ((uint8_t)((self->private_impl.f_bits & 7u))); + self->private_impl.f_bits >>= 3u; + self->private_impl.f_n_bits -= 3u; + v_i += 1u; + } + while (v_i < 19u) { + self->private_impl.f_code_length_code_lengths[WUFFS_WEBP__CODE_LENGTH_CODE_ORDER[v_i]] = 0u; + v_i += 1u; + } + + goto ok; + ok: + self->private_impl.p_decode_code_length_code_lengths = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_code_length_code_lengths = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_code_length_code_lengths.v_n_codes = v_n_codes; + self->private_data.s_decode_code_length_code_lengths.v_i = v_i; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func webp.decoder.build_code_lengths_huffman_nodes + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__build_code_lengths_huffman_nodes( + wuffs_webp__decoder* self) { + uint32_t v_code_bits = 0; + uint32_t v_code_len = 0; + uint32_t v_symbol = 0; + uint32_t v_histogram[8] = {0}; + uint32_t v_n_used_symbols = 0; + uint32_t v_last_used_symbol = 0; + uint32_t v_subscription_weight = 0; + uint32_t v_subscription_total = 0; + uint32_t v_curr_code = 0; + uint32_t v_next_codes[9] = {0}; + uint32_t v_n_branches = 0; + uint32_t v_h = 0; + uint32_t v_children = 0; + uint16_t v_node = 0; + + v_symbol = 0u; + while (v_symbol < 19u) { + v_code_len = ((uint32_t)(self->private_impl.f_code_length_code_lengths[v_symbol])); + if (v_code_len != 0u) { + v_histogram[v_code_len] += 1u; + v_n_used_symbols += 1u; + v_last_used_symbol = v_symbol; + } + v_symbol += 1u; + } + if (v_n_used_symbols < 1u) { + return wuffs_base__make_status(wuffs_webp__error__bad_huffman_code); + } else if (v_n_used_symbols == 1u) { + self->private_data.f_code_lengths_huffman_nodes[0u] = ((uint16_t)((v_last_used_symbol | 32768u))); + return wuffs_base__make_status(NULL); + } + v_subscription_weight = 16384u; + v_code_len = 1u; + while (true) { + v_curr_code = ((uint32_t)(((uint32_t)(v_curr_code + v_histogram[v_code_len])) << 1u)); + v_next_codes[(v_code_len + 1u)] = v_curr_code; + v_subscription_total += ((uint32_t)(v_subscription_weight * v_histogram[v_code_len])); + v_subscription_weight >>= 1u; + if (v_code_len >= 7u) { + break; + } + v_code_len += 1u; + } + if (v_subscription_total > 32768u) { + return wuffs_base__make_status(wuffs_webp__error__bad_huffman_code_over_subscribed); + } else if (v_subscription_total < 32768u) { + return wuffs_base__make_status(wuffs_webp__error__bad_huffman_code_under_subscribed); + } + self->private_data.f_code_lengths_huffman_nodes[0u] = 0u; + v_symbol = 0u; + while (v_symbol < 19u) { + v_code_len = ((uint32_t)(self->private_impl.f_code_length_code_lengths[v_symbol])); + if (v_code_len > 0u) { + v_code_bits = v_next_codes[v_code_len]; + v_next_codes[v_code_len] += 1u; + v_code_bits <<= (32u - v_code_len); + v_h = 0u; + while (v_code_len > 0u) { + v_node = self->private_data.f_code_lengths_huffman_nodes[v_h]; + if (v_node == 0u) { + v_children = ((uint32_t)(1u + ((uint32_t)(2u * v_n_branches)))); + v_children = wuffs_base__u32__min(v_children, 35u); + self->private_data.f_code_lengths_huffman_nodes[v_h] = ((uint16_t)(v_children)); + self->private_data.f_code_lengths_huffman_nodes[(v_children + 0u)] = 0u; + self->private_data.f_code_lengths_huffman_nodes[(v_children + 1u)] = 0u; + v_h = (v_children + (v_code_bits >> 31u)); + v_n_branches += 1u; + } else { + v_children = ((uint32_t)(v_node)); + v_h = (wuffs_base__u32__min(v_children, 35u) + (v_code_bits >> 31u)); + } + v_code_bits <<= 1u; + v_code_len -= 1u; + } + self->private_data.f_code_lengths_huffman_nodes[v_h] = ((uint16_t)((v_symbol | 32768u))); + } + v_symbol += 1u; + } + return wuffs_base__make_status(NULL); +} + +// -------- func webp.decoder.build_huffman_nodes + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__build_huffman_nodes( + wuffs_webp__decoder* self, + uint32_t a_hg, + uint32_t a_ht) { + uint32_t v_base_offset = 0; + uint32_t v_code_bits = 0; + uint32_t v_code_len = 0; + uint32_t v_symbol = 0; + uint32_t v_histogram[16] = {0}; + uint32_t v_n_used_symbols = 0; + uint32_t v_last_used_symbol = 0; + uint32_t v_subscription_weight = 0; + uint32_t v_subscription_total = 0; + uint32_t v_curr_code = 0; + uint32_t v_next_codes[17] = {0}; + uint32_t v_n_branches = 0; + uint32_t v_h = 0; + uint32_t v_children = 0; + uint16_t v_node = 0; + + v_base_offset = ((uint32_t)(WUFFS_WEBP__HUFFMAN_TABLE_BASE_OFFSETS[a_ht])); + v_symbol = 0u; + while (v_symbol < self->private_impl.f_ht_n_symbols) { + v_code_len = ((uint32_t)(((uint16_t)(self->private_data.f_code_lengths[v_symbol] & 15u)))); + if (v_code_len != 0u) { + v_histogram[v_code_len] += 1u; + v_n_used_symbols += 1u; + v_last_used_symbol = v_symbol; + } + v_symbol += 1u; + } + if (v_n_used_symbols < 1u) { + return wuffs_base__make_status(wuffs_webp__error__bad_huffman_code); + } else if (v_n_used_symbols == 1u) { + self->private_data.f_huffman_nodes[a_hg][v_base_offset] = ((uint16_t)((v_last_used_symbol | 32768u))); + return wuffs_base__make_status(NULL); + } + v_subscription_weight = 16384u; + v_code_len = 1u; + while (true) { + v_curr_code = ((uint32_t)(((uint32_t)(v_curr_code + v_histogram[v_code_len])) << 1u)); + v_next_codes[(v_code_len + 1u)] = v_curr_code; + v_subscription_total += ((uint32_t)(v_subscription_weight * v_histogram[v_code_len])); + v_subscription_weight >>= 1u; + if (v_code_len >= 15u) { + break; + } + v_code_len += 1u; + } + if (v_subscription_total > 32768u) { + return wuffs_base__make_status(wuffs_webp__error__bad_huffman_code_over_subscribed); + } else if (v_subscription_total < 32768u) { + return wuffs_base__make_status(wuffs_webp__error__bad_huffman_code_under_subscribed); + } + self->private_data.f_huffman_nodes[a_hg][v_base_offset] = 0u; + v_symbol = 0u; + while (v_symbol < self->private_impl.f_ht_n_symbols) { + v_code_len = ((uint32_t)(((uint16_t)(self->private_data.f_code_lengths[v_symbol] & 15u)))); + if (v_code_len != 0u) { + v_code_bits = v_next_codes[v_code_len]; + v_next_codes[v_code_len] += 1u; + v_code_bits <<= (32u - v_code_len); + v_h = v_base_offset; + while (v_code_len > 0u) { + v_node = self->private_data.f_huffman_nodes[a_hg][v_h]; + if (v_node == 0u) { + v_children = ((uint32_t)(v_base_offset + ((uint32_t)(1u + ((uint32_t)(2u * v_n_branches)))))); + v_children = wuffs_base__u32__min(v_children, 6265u); + self->private_data.f_huffman_nodes[a_hg][v_h] = ((uint16_t)(v_children)); + self->private_data.f_huffman_nodes[a_hg][(v_children + 0u)] = 0u; + self->private_data.f_huffman_nodes[a_hg][(v_children + 1u)] = 0u; + v_h = (v_children + (v_code_bits >> 31u)); + v_n_branches += 1u; + } else { + v_children = ((uint32_t)(v_node)); + v_h = (wuffs_base__u32__min(v_children, 6265u) + (v_code_bits >> 31u)); + } + v_code_bits <<= 1u; + v_code_len -= 1u; + } + self->private_data.f_huffman_nodes[a_hg][v_h] = ((uint16_t)((v_symbol | 32768u))); + } + v_symbol += 1u; + } return wuffs_base__make_status(NULL); } -wuffs_sha256__hasher* -wuffs_sha256__hasher__alloc(void) { - wuffs_sha256__hasher* x = - (wuffs_sha256__hasher*)(calloc(sizeof(wuffs_sha256__hasher), 1)); - if (!x) { - return NULL; - } - if (wuffs_sha256__hasher__initialize( - x, sizeof(wuffs_sha256__hasher), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; +// -------- func webp.decoder.build_code_lengths + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__build_code_lengths( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint8_t v_c8 = 0; + uint32_t v_use_length = 0; + uint32_t v_length_n_bits = 0; + uint32_t v_length = 0; + uint16_t v_prev_code_length = 0; + uint32_t v_h = 0; + uint32_t v_s = 0; + uint32_t v_s_max = 0; + uint16_t v_node = 0; + uint32_t v_symbol = 0; + uint16_t v_repeat_value = 0; + uint32_t v_repeat_n_bits = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_build_code_lengths; + if (coro_susp_point) { + v_length_n_bits = self->private_data.s_build_code_lengths.v_length_n_bits; + v_prev_code_length = self->private_data.s_build_code_lengths.v_prev_code_length; + v_s = self->private_data.s_build_code_lengths.v_s; + v_s_max = self->private_data.s_build_code_lengths.v_s_max; + v_node = self->private_data.s_build_code_lengths.v_node; + v_repeat_value = self->private_data.s_build_code_lengths.v_repeat_value; + v_repeat_n_bits = self->private_data.s_build_code_lengths.v_repeat_n_bits; + } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_n_bits < 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + self->private_impl.f_bits = ((uint32_t)(v_c8)); + self->private_impl.f_n_bits = 8u; + } + v_use_length = (self->private_impl.f_bits & 1u); + self->private_impl.f_bits >>= 1u; + self->private_impl.f_n_bits -= 1u; + self->private_impl.f_ht_code_lengths_remaining = self->private_impl.f_ht_n_symbols; + if (v_use_length != 0u) { + if (self->private_impl.f_n_bits < 3u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + if (self->private_impl.f_n_bits >= 3u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + v_length_n_bits = (((self->private_impl.f_bits & 7u) * 2u) + 2u); + self->private_impl.f_bits >>= 3u; + self->private_impl.f_n_bits -= 3u; + while (self->private_impl.f_n_bits < v_length_n_bits) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; + } + if (self->private_impl.f_n_bits >= v_length_n_bits) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + v_length = ((self->private_impl.f_bits & ((((uint32_t)(1u)) << v_length_n_bits) - 1u)) + 2u); + self->private_impl.f_bits >>= v_length_n_bits; + self->private_impl.f_n_bits -= v_length_n_bits; + if (v_length > self->private_impl.f_ht_n_symbols) { + status = wuffs_base__make_status(wuffs_webp__error__bad_huffman_code); + goto exit; + } + self->private_impl.f_ht_code_lengths_remaining = v_length; + } + v_prev_code_length = 8u; + while (v_s < self->private_impl.f_ht_n_symbols) { + if (self->private_impl.f_ht_code_lengths_remaining <= 0u) { + while (v_s < self->private_impl.f_ht_n_symbols) { + self->private_data.f_code_lengths[v_s] = 0u; + v_s += 1u; + } + break; + } + self->private_impl.f_ht_code_lengths_remaining -= 1u; + v_h = 0u; + while (true) { + v_node = self->private_data.f_code_lengths_huffman_nodes[v_h]; + if (v_node >= 32768u) { + break; + } else if (v_node > 35u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_huffman_code); + goto exit; + } + if (self->private_impl.f_n_bits < 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_c8 = t_3; + } + self->private_impl.f_bits = ((uint32_t)(v_c8)); + self->private_impl.f_n_bits = 8u; + } + v_h = (((uint32_t)(v_node)) + (self->private_impl.f_bits & 1u)); + self->private_impl.f_bits >>= 1u; + self->private_impl.f_n_bits -= 1u; + } + v_symbol = ((uint32_t)(((uint16_t)(v_node & 32767u)))); + if (v_symbol == 0u) { + self->private_data.f_code_lengths[v_s] = 0u; + v_s += 1u; + continue; + } else if (v_symbol < 16u) { + v_prev_code_length = ((uint16_t)(v_symbol)); + self->private_data.f_code_lengths[v_s] = v_prev_code_length; + v_s += 1u; + continue; + } else if (v_symbol == 16u) { + v_repeat_value = v_prev_code_length; + } else { + v_repeat_value = 0u; + } + v_repeat_n_bits = ((uint32_t)(WUFFS_WEBP__REPEAT_N_BITS[(v_symbol & 3u)])); + v_s_max = ((uint32_t)(((uint32_t)(WUFFS_WEBP__REPEAT_COUNTS[(v_symbol & 3u)])) + v_s)); + if (self->private_impl.f_n_bits < v_repeat_n_bits) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_4 = *iop_a_src++; + v_c8 = t_4; + } + if (self->private_impl.f_n_bits >= v_repeat_n_bits) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + v_s_max += (self->private_impl.f_bits & ((((uint32_t)(1u)) << v_repeat_n_bits) - 1u)); + self->private_impl.f_bits >>= v_repeat_n_bits; + self->private_impl.f_n_bits -= v_repeat_n_bits; + if (v_s_max > self->private_impl.f_ht_n_symbols) { + status = wuffs_base__make_status(wuffs_webp__error__bad_huffman_code); + goto exit; + } + while (v_s < v_s_max) { + self->private_data.f_code_lengths[v_s] = v_repeat_value; + v_s += 1u; + } + } + + goto ok; + ok: + self->private_impl.p_build_code_lengths = 0; + goto exit; } - return x; -} - -size_t -sizeof__wuffs_sha256__hasher(void) { - return sizeof(wuffs_sha256__hasher); -} -// ---------------- Function Implementations - -// -------- func sha256.hasher.get_quirk + goto suspend; + suspend: + self->private_impl.p_build_code_lengths = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_build_code_lengths.v_length_n_bits = v_length_n_bits; + self->private_data.s_build_code_lengths.v_prev_code_length = v_prev_code_length; + self->private_data.s_build_code_lengths.v_s = v_s; + self->private_data.s_build_code_lengths.v_s_max = v_s_max; + self->private_data.s_build_code_lengths.v_node = v_node; + self->private_data.s_build_code_lengths.v_repeat_value = v_repeat_value; + self->private_data.s_build_code_lengths.v_repeat_n_bits = v_repeat_n_bits; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_sha256__hasher__get_quirk( - const wuffs_sha256__hasher* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - return 0u; + return status; } -// -------- func sha256.hasher.set_quirk +// -------- func webp.decoder.decode_pixels_slow WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_sha256__hasher__set_quirk( - wuffs_sha256__hasher* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - - return wuffs_base__make_status(wuffs_base__error__unsupported_option); -} +static wuffs_base__status +wuffs_webp__decoder__decode_pixels_slow( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_dst, + wuffs_base__io_buffer* a_src, + uint32_t a_width, + uint32_t a_height, + wuffs_base__slice_u8 a_tile_data, + uint32_t a_tile_size_log2) { + wuffs_base__status status = wuffs_base__make_status(NULL); -// -------- func sha256.hasher.update + uint8_t v_c8 = 0; + uint64_t v_p = 0; + uint64_t v_p_max = 0; + uint32_t v_tile_size_log2 = 0; + uint32_t v_width_in_tiles = 0; + uint32_t v_x = 0; + uint32_t v_y = 0; + uint32_t v_i = 0; + uint32_t v_hg = 0; + uint32_t v_h = 0; + uint16_t v_node = 0; + uint32_t v_pixel_g = 0; + uint32_t v_color = 0; + wuffs_base__slice_u8 v_dst_pixel = {0}; + uint32_t v_back_ref_len_n_bits = 0; + uint32_t v_back_ref_len_minus_1 = 0; + uint32_t v_back_ref_dist_n_bits = 0; + uint32_t v_back_ref_dist_sym = 0; + uint32_t v_back_ref_dist_premap_minus_1 = 0; + uint32_t v_back_ref_dist_minus_1 = 0; + uint32_t v_dm = 0; + uint32_t v_dx = 0; + uint32_t v_dy = 0; + uint64_t v_p_end = 0; + uint64_t v_dist4 = 0; + uint64_t v_q = 0; + wuffs_base__slice_u8 v_color_cache_pixels = {0}; + uint64_t v_color_cache_p = 0; + uint32_t v_color_cache_shift = 0; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_sha256__hasher__update( - wuffs_sha256__hasher* self, - wuffs_base__slice_u8 a_x) { - if (!self) { - return wuffs_base__make_empty_struct(); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_empty_struct(); + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - uint64_t v_new_lmu = 0; - - if ((self->private_impl.f_length_modulo_u64 == 0u) && ! self->private_impl.f_length_overflows_u64) { - self->private_impl.f_h0 = WUFFS_SHA256__INITIAL_SHA256_H[0u]; - self->private_impl.f_h1 = WUFFS_SHA256__INITIAL_SHA256_H[1u]; - self->private_impl.f_h2 = WUFFS_SHA256__INITIAL_SHA256_H[2u]; - self->private_impl.f_h3 = WUFFS_SHA256__INITIAL_SHA256_H[3u]; - self->private_impl.f_h4 = WUFFS_SHA256__INITIAL_SHA256_H[4u]; - self->private_impl.f_h5 = WUFFS_SHA256__INITIAL_SHA256_H[5u]; - self->private_impl.f_h6 = WUFFS_SHA256__INITIAL_SHA256_H[6u]; - self->private_impl.f_h7 = WUFFS_SHA256__INITIAL_SHA256_H[7u]; + uint32_t coro_susp_point = self->private_impl.p_decode_pixels_slow; + if (coro_susp_point) { + v_p = self->private_data.s_decode_pixels_slow.v_p; + v_p_max = self->private_data.s_decode_pixels_slow.v_p_max; + v_tile_size_log2 = self->private_data.s_decode_pixels_slow.v_tile_size_log2; + v_width_in_tiles = self->private_data.s_decode_pixels_slow.v_width_in_tiles; + v_x = self->private_data.s_decode_pixels_slow.v_x; + v_y = self->private_data.s_decode_pixels_slow.v_y; + v_hg = self->private_data.s_decode_pixels_slow.v_hg; + v_node = self->private_data.s_decode_pixels_slow.v_node; + v_color = self->private_data.s_decode_pixels_slow.v_color; + v_back_ref_len_n_bits = self->private_data.s_decode_pixels_slow.v_back_ref_len_n_bits; + v_back_ref_len_minus_1 = self->private_data.s_decode_pixels_slow.v_back_ref_len_minus_1; + v_back_ref_dist_n_bits = self->private_data.s_decode_pixels_slow.v_back_ref_dist_n_bits; + v_back_ref_dist_premap_minus_1 = self->private_data.s_decode_pixels_slow.v_back_ref_dist_premap_minus_1; + v_color_cache_p = self->private_data.s_decode_pixels_slow.v_color_cache_p; } - v_new_lmu = ((uint64_t)(self->private_impl.f_length_modulo_u64 + ((uint64_t)(a_x.len)))); - self->private_impl.f_length_overflows_u64 = ((v_new_lmu < self->private_impl.f_length_modulo_u64) || self->private_impl.f_length_overflows_u64); - self->private_impl.f_length_modulo_u64 = v_new_lmu; - if (self->private_impl.f_buf_len != 0u) { - while (self->private_impl.f_buf_len < 64u) { - if (((uint64_t)(a_x.len)) <= 0u) { - return wuffs_base__make_empty_struct(); + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + v_p_max = ((uint64_t)((4u * a_width * a_height))); + if (((uint64_t)(a_dst.len)) < v_p_max) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_dst_buffer); + goto exit; + } + if (a_tile_size_log2 != 0u) { + v_tile_size_log2 = a_tile_size_log2; + v_width_in_tiles = ((a_width + ((((uint32_t)(1u)) << v_tile_size_log2) - 1u)) >> v_tile_size_log2); + } else { + v_tile_size_log2 = 31u; + v_width_in_tiles = 1u; + } + while (v_p < v_p_max) { + v_i = ((uint32_t)(((uint32_t)(((uint32_t)(((uint32_t)((v_y >> v_tile_size_log2) * v_width_in_tiles)) + (v_x >> v_tile_size_log2))) * 4u)) + 1u)); + if (((uint64_t)(v_i)) < ((uint64_t)(a_tile_data.len))) { + v_hg = ((uint32_t)(a_tile_data.ptr[((uint64_t)(v_i))])); + } + v_h = ((uint32_t)(WUFFS_WEBP__HUFFMAN_TABLE_BASE_OFFSETS[0u])); + while (true) { + v_node = self->private_data.f_huffman_nodes[v_hg][v_h]; + if (v_node >= 32768u) { + break; + } else if (v_node > 6265u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_huffman_code); + goto exit; + } + if (self->private_impl.f_n_bits < 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + self->private_impl.f_bits = ((uint32_t)(v_c8)); + self->private_impl.f_n_bits = 8u; + } + v_h = (((uint32_t)(v_node)) + (self->private_impl.f_bits & 1u)); + self->private_impl.f_bits >>= 1u; + self->private_impl.f_n_bits -= 1u; + } + v_pixel_g = ((uint32_t)(((uint16_t)(v_node & 32767u)))); + if (v_pixel_g < 256u) { + v_color = (v_pixel_g << 8u); + v_h = ((uint32_t)(WUFFS_WEBP__HUFFMAN_TABLE_BASE_OFFSETS[1u])); + while (true) { + v_node = self->private_data.f_huffman_nodes[v_hg][v_h]; + if (v_node >= 32768u) { + break; + } + if (self->private_impl.f_n_bits < 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + self->private_impl.f_bits = ((uint32_t)(v_c8)); + self->private_impl.f_n_bits = 8u; + } + v_h = ((((uint32_t)(v_node)) & 4095u) + (self->private_impl.f_bits & 1u)); + self->private_impl.f_bits >>= 1u; + self->private_impl.f_n_bits -= 1u; + } + v_color |= (((uint32_t)(((uint16_t)(v_node & 255u)))) << 16u); + v_h = ((uint32_t)(WUFFS_WEBP__HUFFMAN_TABLE_BASE_OFFSETS[2u])); + while (true) { + v_node = self->private_data.f_huffman_nodes[v_hg][v_h]; + if (v_node >= 32768u) { + break; + } + if (self->private_impl.f_n_bits < 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; + } + self->private_impl.f_bits = ((uint32_t)(v_c8)); + self->private_impl.f_n_bits = 8u; + } + v_h = ((((uint32_t)(v_node)) & 4095u) + (self->private_impl.f_bits & 1u)); + self->private_impl.f_bits >>= 1u; + self->private_impl.f_n_bits -= 1u; + } + v_color |= (((uint32_t)(((uint16_t)(v_node & 255u)))) << 0u); + v_h = ((uint32_t)(WUFFS_WEBP__HUFFMAN_TABLE_BASE_OFFSETS[3u])); + while (true) { + v_node = self->private_data.f_huffman_nodes[v_hg][v_h]; + if (v_node >= 32768u) { + break; + } + if (self->private_impl.f_n_bits < 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_c8 = t_3; + } + self->private_impl.f_bits = ((uint32_t)(v_c8)); + self->private_impl.f_n_bits = 8u; + } + v_h = ((((uint32_t)(v_node)) & 4095u) + (self->private_impl.f_bits & 1u)); + self->private_impl.f_bits >>= 1u; + self->private_impl.f_n_bits -= 1u; + } + v_color |= (((uint32_t)(((uint16_t)(v_node & 255u)))) << 24u); + } else if (v_pixel_g < 280u) { + if (v_pixel_g < 260u) { + v_back_ref_len_minus_1 = (v_pixel_g - 256u); + } else { + v_back_ref_len_n_bits = ((v_pixel_g - 258u) >> 1u); + v_back_ref_len_minus_1 = ((((uint32_t)(2u)) + (v_pixel_g & 1u)) << v_back_ref_len_n_bits); + while (self->private_impl.f_n_bits < v_back_ref_len_n_bits) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_4 = *iop_a_src++; + v_c8 = t_4; + } + if (self->private_impl.f_n_bits >= v_back_ref_len_n_bits) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + v_back_ref_len_minus_1 += (self->private_impl.f_bits & ((((uint32_t)(1u)) << v_back_ref_len_n_bits) - 1u)); + self->private_impl.f_bits >>= v_back_ref_len_n_bits; + self->private_impl.f_n_bits -= v_back_ref_len_n_bits; + } + v_h = ((uint32_t)(WUFFS_WEBP__HUFFMAN_TABLE_BASE_OFFSETS[4u])); + while (true) { + v_node = self->private_data.f_huffman_nodes[v_hg][v_h]; + if (v_node >= 32768u) { + break; + } + if (self->private_impl.f_n_bits < 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_5 = *iop_a_src++; + v_c8 = t_5; + } + self->private_impl.f_bits = ((uint32_t)(v_c8)); + self->private_impl.f_n_bits = 8u; + } + v_h = ((((uint32_t)(v_node)) & 4095u) + (self->private_impl.f_bits & 1u)); + self->private_impl.f_bits >>= 1u; + self->private_impl.f_n_bits -= 1u; + } + v_back_ref_dist_sym = ((uint32_t)(((uint16_t)(v_node & 32767u)))); + if (v_back_ref_dist_sym < 4u) { + v_back_ref_dist_premap_minus_1 = v_back_ref_dist_sym; + } else if (v_back_ref_dist_sym < 40u) { + v_back_ref_dist_n_bits = ((v_back_ref_dist_sym - 2u) >> 1u); + v_back_ref_dist_premap_minus_1 = ((((uint32_t)(2u)) + (v_back_ref_dist_sym & 1u)) << v_back_ref_dist_n_bits); + while (self->private_impl.f_n_bits < v_back_ref_dist_n_bits) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_6 = *iop_a_src++; + v_c8 = t_6; + } + if (self->private_impl.f_n_bits >= v_back_ref_dist_n_bits) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + v_back_ref_dist_premap_minus_1 += (self->private_impl.f_bits & ((((uint32_t)(1u)) << v_back_ref_dist_n_bits) - 1u)); + self->private_impl.f_bits >>= v_back_ref_dist_n_bits; + self->private_impl.f_n_bits -= v_back_ref_dist_n_bits; + } + if (v_back_ref_dist_premap_minus_1 >= 120u) { + v_back_ref_dist_minus_1 = (v_back_ref_dist_premap_minus_1 - 120u); + } else { + v_dm = ((uint32_t)(WUFFS_WEBP__DISTANCE_MAP[v_back_ref_dist_premap_minus_1])); + v_dy = (v_dm >> 4u); + v_dx = ((uint32_t)(7u - (v_dm & 15u))); + v_back_ref_dist_minus_1 = ((uint32_t)((a_width * v_dy) + v_dx)); + } + v_p_end = (v_p + ((uint64_t)(((v_back_ref_len_minus_1 + 1u) * 4u)))); + v_dist4 = ((((uint64_t)(v_back_ref_dist_minus_1)) * 4u) + 4u); + if ((v_p_end > v_p_max) || (v_p_end > ((uint64_t)(a_dst.len))) || (v_p < v_dist4)) { + status = wuffs_base__make_status(wuffs_webp__error__bad_back_reference); + goto exit; + } + v_q = (v_p - v_dist4); + while ((v_q < v_p) && (v_p < v_p_end)) { + a_dst.ptr[v_p] = a_dst.ptr[v_q]; + v_p += 1u; + v_q += 1u; + } + v_x += (v_back_ref_len_minus_1 + 1u); + while (v_x >= a_width) { + v_x -= a_width; + v_y += 1u; + } + continue; + } else { + if ((v_color_cache_p > v_p) || (v_p > ((uint64_t)(a_dst.len)))) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_dst_buffer); + goto exit; + } + v_color_cache_pixels = wuffs_base__slice_u8__subslice_ij(a_dst, v_color_cache_p, v_p); + v_color_cache_p = v_p; + v_color_cache_shift = ((32u - self->private_impl.f_color_cache_bits) & 31u); + while (((uint64_t)(v_color_cache_pixels.len)) >= 4u) { + v_color = wuffs_base__peek_u32le__no_bounds_check(v_color_cache_pixels.ptr); + self->private_data.f_color_cache[((((uint32_t)(v_color * 506832829u)) >> v_color_cache_shift) & 2047u)] = v_color; + v_color_cache_pixels = wuffs_base__slice_u8__subslice_i(v_color_cache_pixels, 4u); + } + v_color = self->private_data.f_color_cache[((v_pixel_g - 280u) & 2047u)]; + } + if (v_p > ((uint64_t)(a_dst.len))) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_dst_buffer); + goto exit; + } + v_dst_pixel = wuffs_base__slice_u8__subslice_i(a_dst, v_p); + if (((uint64_t)(v_dst_pixel.len)) < 4u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_dst_buffer); + goto exit; + } + wuffs_base__poke_u32le__no_bounds_check(v_dst_pixel.ptr, v_color); + v_p += 4u; + v_x += 1u; + if (v_x == a_width) { + v_x = 0u; + v_y += 1u; } - self->private_impl.f_buf_data[self->private_impl.f_buf_len] = a_x.ptr[0u]; - self->private_impl.f_buf_len += 1u; - a_x = wuffs_base__slice_u8__subslice_i(a_x, 1u); } - self->private_impl.f_buf_len = 0u; - wuffs_sha256__hasher__up(self, wuffs_base__make_slice_u8(self->private_impl.f_buf_data, 64)); + + goto ok; + ok: + self->private_impl.p_decode_pixels_slow = 0; + goto exit; } - wuffs_sha256__hasher__up(self, a_x); - return wuffs_base__make_empty_struct(); -} -// -------- func sha256.hasher.update_bitvec256 + goto suspend; + suspend: + self->private_impl.p_decode_pixels_slow = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_pixels_slow.v_p = v_p; + self->private_data.s_decode_pixels_slow.v_p_max = v_p_max; + self->private_data.s_decode_pixels_slow.v_tile_size_log2 = v_tile_size_log2; + self->private_data.s_decode_pixels_slow.v_width_in_tiles = v_width_in_tiles; + self->private_data.s_decode_pixels_slow.v_x = v_x; + self->private_data.s_decode_pixels_slow.v_y = v_y; + self->private_data.s_decode_pixels_slow.v_hg = v_hg; + self->private_data.s_decode_pixels_slow.v_node = v_node; + self->private_data.s_decode_pixels_slow.v_color = v_color; + self->private_data.s_decode_pixels_slow.v_back_ref_len_n_bits = v_back_ref_len_n_bits; + self->private_data.s_decode_pixels_slow.v_back_ref_len_minus_1 = v_back_ref_len_minus_1; + self->private_data.s_decode_pixels_slow.v_back_ref_dist_n_bits = v_back_ref_dist_n_bits; + self->private_data.s_decode_pixels_slow.v_back_ref_dist_premap_minus_1 = v_back_ref_dist_premap_minus_1; + self->private_data.s_decode_pixels_slow.v_color_cache_p = v_color_cache_p; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__bitvec256 -wuffs_sha256__hasher__update_bitvec256( - wuffs_sha256__hasher* self, - wuffs_base__slice_u8 a_x) { - if (!self) { - return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - wuffs_sha256__hasher__update(self, a_x); - return wuffs_sha256__hasher__checksum_bitvec256(self); + return status; } -// -------- func sha256.hasher.up +// -------- func webp.decoder.apply_transform_predictor WUFFS_BASE__GENERATED_C_CODE static wuffs_base__empty_struct -wuffs_sha256__hasher__up( - wuffs_sha256__hasher* self, - wuffs_base__slice_u8 a_x) { - wuffs_base__slice_u8 v_p = {0}; - uint32_t v_w[64] = {0}; - uint32_t v_w2 = 0; - uint32_t v_w15 = 0; - uint32_t v_s0 = 0; - uint32_t v_s1 = 0; +wuffs_webp__decoder__apply_transform_predictor( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_pix, + wuffs_base__slice_u8 a_tile_data) { + uint64_t v_w4 = 0; + wuffs_base__slice_u8 v_prev_row = {0}; + wuffs_base__slice_u8 v_curr_row = {0}; + uint32_t v_tile_size_log2 = 0; + uint32_t v_tiles_per_row = 0; + uint32_t v_mask = 0; + uint32_t v_y = 0; + uint32_t v_x = 0; + uint64_t v_t = 0; + wuffs_base__slice_u8 v_tile_data = {0}; + uint8_t v_mode = 0; + uint32_t v_l0 = 0; + uint32_t v_l1 = 0; + uint32_t v_l2 = 0; + uint32_t v_l3 = 0; + uint32_t v_c0 = 0; + uint32_t v_c1 = 0; + uint32_t v_c2 = 0; + uint32_t v_c3 = 0; + uint32_t v_t0 = 0; uint32_t v_t1 = 0; uint32_t v_t2 = 0; - uint32_t v_a = 0; - uint32_t v_b = 0; - uint32_t v_c = 0; - uint32_t v_d = 0; - uint32_t v_e = 0; - uint32_t v_f = 0; - uint32_t v_g = 0; - uint32_t v_h = 0; - uint32_t v_i = 0; - uint32_t v_buf_len = 0; + uint32_t v_t3 = 0; + uint32_t v_sum_l = 0; + uint32_t v_sum_t = 0; - v_a = self->private_impl.f_h0; - v_b = self->private_impl.f_h1; - v_c = self->private_impl.f_h2; - v_d = self->private_impl.f_h3; - v_e = self->private_impl.f_h4; - v_f = self->private_impl.f_h5; - v_g = self->private_impl.f_h6; - v_h = self->private_impl.f_h7; - { - wuffs_base__slice_u8 i_slice_p = a_x; - v_p.ptr = i_slice_p.ptr; - v_p.len = 64; - uint8_t* i_end0_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 64) * 64); - while (v_p.ptr < i_end0_p) { - v_w[0u] = ((((uint32_t)(v_p.ptr[0u])) << 24u) | - (((uint32_t)(v_p.ptr[1u])) << 16u) | - (((uint32_t)(v_p.ptr[2u])) << 8u) | - ((uint32_t)(v_p.ptr[3u]))); - v_w[1u] = ((((uint32_t)(v_p.ptr[4u])) << 24u) | - (((uint32_t)(v_p.ptr[5u])) << 16u) | - (((uint32_t)(v_p.ptr[6u])) << 8u) | - ((uint32_t)(v_p.ptr[7u]))); - v_w[2u] = ((((uint32_t)(v_p.ptr[8u])) << 24u) | - (((uint32_t)(v_p.ptr[9u])) << 16u) | - (((uint32_t)(v_p.ptr[10u])) << 8u) | - ((uint32_t)(v_p.ptr[11u]))); - v_w[3u] = ((((uint32_t)(v_p.ptr[12u])) << 24u) | - (((uint32_t)(v_p.ptr[13u])) << 16u) | - (((uint32_t)(v_p.ptr[14u])) << 8u) | - ((uint32_t)(v_p.ptr[15u]))); - v_w[4u] = ((((uint32_t)(v_p.ptr[16u])) << 24u) | - (((uint32_t)(v_p.ptr[17u])) << 16u) | - (((uint32_t)(v_p.ptr[18u])) << 8u) | - ((uint32_t)(v_p.ptr[19u]))); - v_w[5u] = ((((uint32_t)(v_p.ptr[20u])) << 24u) | - (((uint32_t)(v_p.ptr[21u])) << 16u) | - (((uint32_t)(v_p.ptr[22u])) << 8u) | - ((uint32_t)(v_p.ptr[23u]))); - v_w[6u] = ((((uint32_t)(v_p.ptr[24u])) << 24u) | - (((uint32_t)(v_p.ptr[25u])) << 16u) | - (((uint32_t)(v_p.ptr[26u])) << 8u) | - ((uint32_t)(v_p.ptr[27u]))); - v_w[7u] = ((((uint32_t)(v_p.ptr[28u])) << 24u) | - (((uint32_t)(v_p.ptr[29u])) << 16u) | - (((uint32_t)(v_p.ptr[30u])) << 8u) | - ((uint32_t)(v_p.ptr[31u]))); - v_w[8u] = ((((uint32_t)(v_p.ptr[32u])) << 24u) | - (((uint32_t)(v_p.ptr[33u])) << 16u) | - (((uint32_t)(v_p.ptr[34u])) << 8u) | - ((uint32_t)(v_p.ptr[35u]))); - v_w[9u] = ((((uint32_t)(v_p.ptr[36u])) << 24u) | - (((uint32_t)(v_p.ptr[37u])) << 16u) | - (((uint32_t)(v_p.ptr[38u])) << 8u) | - ((uint32_t)(v_p.ptr[39u]))); - v_w[10u] = ((((uint32_t)(v_p.ptr[40u])) << 24u) | - (((uint32_t)(v_p.ptr[41u])) << 16u) | - (((uint32_t)(v_p.ptr[42u])) << 8u) | - ((uint32_t)(v_p.ptr[43u]))); - v_w[11u] = ((((uint32_t)(v_p.ptr[44u])) << 24u) | - (((uint32_t)(v_p.ptr[45u])) << 16u) | - (((uint32_t)(v_p.ptr[46u])) << 8u) | - ((uint32_t)(v_p.ptr[47u]))); - v_w[12u] = ((((uint32_t)(v_p.ptr[48u])) << 24u) | - (((uint32_t)(v_p.ptr[49u])) << 16u) | - (((uint32_t)(v_p.ptr[50u])) << 8u) | - ((uint32_t)(v_p.ptr[51u]))); - v_w[13u] = ((((uint32_t)(v_p.ptr[52u])) << 24u) | - (((uint32_t)(v_p.ptr[53u])) << 16u) | - (((uint32_t)(v_p.ptr[54u])) << 8u) | - ((uint32_t)(v_p.ptr[55u]))); - v_w[14u] = ((((uint32_t)(v_p.ptr[56u])) << 24u) | - (((uint32_t)(v_p.ptr[57u])) << 16u) | - (((uint32_t)(v_p.ptr[58u])) << 8u) | - ((uint32_t)(v_p.ptr[59u]))); - v_w[15u] = ((((uint32_t)(v_p.ptr[60u])) << 24u) | - (((uint32_t)(v_p.ptr[61u])) << 16u) | - (((uint32_t)(v_p.ptr[62u])) << 8u) | - ((uint32_t)(v_p.ptr[63u]))); - v_i = 16u; - while (v_i < 64u) { - v_w2 = v_w[(v_i - 2u)]; - v_s1 = ((v_w2 >> 10u) ^ (((uint32_t)(v_w2 << 15u)) | (v_w2 >> 17u)) ^ (((uint32_t)(v_w2 << 13u)) | (v_w2 >> 19u))); - v_w15 = v_w[(v_i - 15u)]; - v_s0 = ((v_w15 >> 3u) ^ (((uint32_t)(v_w15 << 25u)) | (v_w15 >> 7u)) ^ (((uint32_t)(v_w15 << 14u)) | (v_w15 >> 18u))); - v_w[v_i] = ((uint32_t)(((uint32_t)(((uint32_t)(v_s1 + v_w[(v_i - 7u)])) + v_s0)) + v_w[(v_i - 16u)])); - v_i += 1u; + if ((self->private_impl.f_width <= 0u) || (self->private_impl.f_height <= 0u)) { + return wuffs_base__make_empty_struct(); + } + v_w4 = ((uint64_t)((self->private_impl.f_width * 4u))); + v_curr_row = wuffs_base__utility__empty_slice_u8(); + if (v_w4 <= ((uint64_t)(a_pix.len))) { + v_curr_row = wuffs_base__slice_u8__subslice_j(a_pix, v_w4); + } + if (((uint64_t)(v_curr_row.len)) >= 4u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[3u] += 255u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } + while (((uint64_t)(v_curr_row.len)) >= 8u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += v_curr_row.ptr[0u]; + v_curr_row.ptr[5u] += v_curr_row.ptr[1u]; + v_curr_row.ptr[6u] += v_curr_row.ptr[2u]; + v_curr_row.ptr[7u] += v_curr_row.ptr[3u]; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_curr_row = wuffs_base__slice_u8__subslice_i(v_curr_row, 4u); + } + v_tile_size_log2 = ((uint32_t)(self->private_impl.f_transform_tile_size_log2[0u])); + v_tiles_per_row = ((self->private_impl.f_width + ((((uint32_t)(1u)) << v_tile_size_log2) - 1u)) >> v_tile_size_log2); + v_mask = ((((uint32_t)(1u)) << v_tile_size_log2) - 1u); + v_y = 1u; + while (v_y < self->private_impl.f_height) { + v_t = ((uint64_t)((4u * (v_y >> v_tile_size_log2) * v_tiles_per_row))); + v_tile_data = wuffs_base__utility__empty_slice_u8(); + if (v_t <= ((uint64_t)(a_tile_data.len))) { + v_tile_data = wuffs_base__slice_u8__subslice_i(a_tile_data, v_t); + if (((uint64_t)(v_tile_data.len)) >= 4u) { + v_mode = ((uint8_t)(v_tile_data.ptr[1u] & 15u)); + v_tile_data = wuffs_base__slice_u8__subslice_i(v_tile_data, 4u); } - v_i = 0u; - while (v_i < 64u) { - v_t1 = v_h; - v_t1 += ((((uint32_t)(v_e << 26u)) | (v_e >> 6u)) ^ (((uint32_t)(v_e << 21u)) | (v_e >> 11u)) ^ (((uint32_t)(v_e << 7u)) | (v_e >> 25u))); - v_t1 += ((v_e & v_f) ^ ((4294967295u ^ v_e) & v_g)); - v_t1 += WUFFS_SHA256__K[v_i]; - v_t1 += v_w[v_i]; - v_t2 = ((((uint32_t)(v_a << 30u)) | (v_a >> 2u)) ^ (((uint32_t)(v_a << 19u)) | (v_a >> 13u)) ^ (((uint32_t)(v_a << 10u)) | (v_a >> 22u))); - v_t2 += ((v_a & v_b) ^ (v_a & v_c) ^ (v_b & v_c)); - v_h = v_g; - v_g = v_f; - v_f = v_e; - v_e = ((uint32_t)(v_d + v_t1)); - v_d = v_c; - v_c = v_b; - v_b = v_a; - v_a = ((uint32_t)(v_t1 + v_t2)); - v_i += 1u; + } + if (v_w4 <= ((uint64_t)(a_pix.len))) { + v_prev_row = a_pix; + a_pix = wuffs_base__slice_u8__subslice_i(a_pix, v_w4); + v_curr_row = a_pix; + } + if ((((uint64_t)(v_prev_row.len)) >= 4u) && (((uint64_t)(v_curr_row.len)) >= 4u)) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[0u] += v_prev_row.ptr[0u]; + v_curr_row.ptr[1u] += v_prev_row.ptr[1u]; + v_curr_row.ptr[2u] += v_prev_row.ptr[2u]; + v_curr_row.ptr[3u] += v_prev_row.ptr[3u]; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } + v_x = 1u; + while (v_x < self->private_impl.f_width) { + if (((v_x & v_mask) == 0u) && (((uint64_t)(v_tile_data.len)) >= 4u)) { + v_mode = ((uint8_t)(v_tile_data.ptr[1u] & 15u)); + v_tile_data = wuffs_base__slice_u8__subslice_i(v_tile_data, 4u); + } + if ((((uint64_t)(v_prev_row.len)) < 12u) || (((uint64_t)(v_curr_row.len)) < 8u)) { + break; + } + if (v_mode == 0u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[7u] += 255u; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 1u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += v_curr_row.ptr[0u]; + v_curr_row.ptr[5u] += v_curr_row.ptr[1u]; + v_curr_row.ptr[6u] += v_curr_row.ptr[2u]; + v_curr_row.ptr[7u] += v_curr_row.ptr[3u]; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 2u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += v_prev_row.ptr[4u]; + v_curr_row.ptr[5u] += v_prev_row.ptr[5u]; + v_curr_row.ptr[6u] += v_prev_row.ptr[6u]; + v_curr_row.ptr[7u] += v_prev_row.ptr[7u]; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 3u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += v_prev_row.ptr[8u]; + v_curr_row.ptr[5u] += v_prev_row.ptr[9u]; + v_curr_row.ptr[6u] += v_prev_row.ptr[10u]; + v_curr_row.ptr[7u] += v_prev_row.ptr[11u]; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 4u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += v_prev_row.ptr[0u]; + v_curr_row.ptr[5u] += v_prev_row.ptr[1u]; + v_curr_row.ptr[6u] += v_prev_row.ptr[2u]; + v_curr_row.ptr[7u] += v_prev_row.ptr[3u]; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 5u) { + v_l0 = ((((uint32_t)(v_curr_row.ptr[0u])) + ((uint32_t)(v_prev_row.ptr[8u]))) / 2u); + v_l1 = ((((uint32_t)(v_curr_row.ptr[1u])) + ((uint32_t)(v_prev_row.ptr[9u]))) / 2u); + v_l2 = ((((uint32_t)(v_curr_row.ptr[2u])) + ((uint32_t)(v_prev_row.ptr[10u]))) / 2u); + v_l3 = ((((uint32_t)(v_curr_row.ptr[3u])) + ((uint32_t)(v_prev_row.ptr[11u]))) / 2u); +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += ((uint8_t)(((v_l0 + ((uint32_t)(v_prev_row.ptr[4u]))) / 2u))); + v_curr_row.ptr[5u] += ((uint8_t)(((v_l1 + ((uint32_t)(v_prev_row.ptr[5u]))) / 2u))); + v_curr_row.ptr[6u] += ((uint8_t)(((v_l2 + ((uint32_t)(v_prev_row.ptr[6u]))) / 2u))); + v_curr_row.ptr[7u] += ((uint8_t)(((v_l3 + ((uint32_t)(v_prev_row.ptr[7u]))) / 2u))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 6u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += ((uint8_t)(((((uint32_t)(v_curr_row.ptr[0u])) + ((uint32_t)(v_prev_row.ptr[0u]))) / 2u))); + v_curr_row.ptr[5u] += ((uint8_t)(((((uint32_t)(v_curr_row.ptr[1u])) + ((uint32_t)(v_prev_row.ptr[1u]))) / 2u))); + v_curr_row.ptr[6u] += ((uint8_t)(((((uint32_t)(v_curr_row.ptr[2u])) + ((uint32_t)(v_prev_row.ptr[2u]))) / 2u))); + v_curr_row.ptr[7u] += ((uint8_t)(((((uint32_t)(v_curr_row.ptr[3u])) + ((uint32_t)(v_prev_row.ptr[3u]))) / 2u))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 7u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += ((uint8_t)(((((uint32_t)(v_curr_row.ptr[0u])) + ((uint32_t)(v_prev_row.ptr[4u]))) / 2u))); + v_curr_row.ptr[5u] += ((uint8_t)(((((uint32_t)(v_curr_row.ptr[1u])) + ((uint32_t)(v_prev_row.ptr[5u]))) / 2u))); + v_curr_row.ptr[6u] += ((uint8_t)(((((uint32_t)(v_curr_row.ptr[2u])) + ((uint32_t)(v_prev_row.ptr[6u]))) / 2u))); + v_curr_row.ptr[7u] += ((uint8_t)(((((uint32_t)(v_curr_row.ptr[3u])) + ((uint32_t)(v_prev_row.ptr[7u]))) / 2u))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 8u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += ((uint8_t)(((((uint32_t)(v_prev_row.ptr[0u])) + ((uint32_t)(v_prev_row.ptr[4u]))) / 2u))); + v_curr_row.ptr[5u] += ((uint8_t)(((((uint32_t)(v_prev_row.ptr[1u])) + ((uint32_t)(v_prev_row.ptr[5u]))) / 2u))); + v_curr_row.ptr[6u] += ((uint8_t)(((((uint32_t)(v_prev_row.ptr[2u])) + ((uint32_t)(v_prev_row.ptr[6u]))) / 2u))); + v_curr_row.ptr[7u] += ((uint8_t)(((((uint32_t)(v_prev_row.ptr[3u])) + ((uint32_t)(v_prev_row.ptr[7u]))) / 2u))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 9u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += ((uint8_t)(((((uint32_t)(v_prev_row.ptr[4u])) + ((uint32_t)(v_prev_row.ptr[8u]))) / 2u))); + v_curr_row.ptr[5u] += ((uint8_t)(((((uint32_t)(v_prev_row.ptr[5u])) + ((uint32_t)(v_prev_row.ptr[9u]))) / 2u))); + v_curr_row.ptr[6u] += ((uint8_t)(((((uint32_t)(v_prev_row.ptr[6u])) + ((uint32_t)(v_prev_row.ptr[10u]))) / 2u))); + v_curr_row.ptr[7u] += ((uint8_t)(((((uint32_t)(v_prev_row.ptr[7u])) + ((uint32_t)(v_prev_row.ptr[11u]))) / 2u))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 10u) { + v_l0 = ((((uint32_t)(v_curr_row.ptr[0u])) + ((uint32_t)(v_prev_row.ptr[0u]))) / 2u); + v_l1 = ((((uint32_t)(v_curr_row.ptr[1u])) + ((uint32_t)(v_prev_row.ptr[1u]))) / 2u); + v_l2 = ((((uint32_t)(v_curr_row.ptr[2u])) + ((uint32_t)(v_prev_row.ptr[2u]))) / 2u); + v_l3 = ((((uint32_t)(v_curr_row.ptr[3u])) + ((uint32_t)(v_prev_row.ptr[3u]))) / 2u); + v_t0 = ((((uint32_t)(v_prev_row.ptr[4u])) + ((uint32_t)(v_prev_row.ptr[8u]))) / 2u); + v_t1 = ((((uint32_t)(v_prev_row.ptr[5u])) + ((uint32_t)(v_prev_row.ptr[9u]))) / 2u); + v_t2 = ((((uint32_t)(v_prev_row.ptr[6u])) + ((uint32_t)(v_prev_row.ptr[10u]))) / 2u); + v_t3 = ((((uint32_t)(v_prev_row.ptr[7u])) + ((uint32_t)(v_prev_row.ptr[11u]))) / 2u); +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += ((uint8_t)(((v_l0 + v_t0) / 2u))); + v_curr_row.ptr[5u] += ((uint8_t)(((v_l1 + v_t1) / 2u))); + v_curr_row.ptr[6u] += ((uint8_t)(((v_l2 + v_t2) / 2u))); + v_curr_row.ptr[7u] += ((uint8_t)(((v_l3 + v_t3) / 2u))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 11u) { + v_l0 = ((uint32_t)(v_curr_row.ptr[0u])); + v_l1 = ((uint32_t)(v_curr_row.ptr[1u])); + v_l2 = ((uint32_t)(v_curr_row.ptr[2u])); + v_l3 = ((uint32_t)(v_curr_row.ptr[3u])); + v_c0 = ((uint32_t)(v_prev_row.ptr[0u])); + v_c1 = ((uint32_t)(v_prev_row.ptr[1u])); + v_c2 = ((uint32_t)(v_prev_row.ptr[2u])); + v_c3 = ((uint32_t)(v_prev_row.ptr[3u])); + v_t0 = ((uint32_t)(v_prev_row.ptr[4u])); + v_t1 = ((uint32_t)(v_prev_row.ptr[5u])); + v_t2 = ((uint32_t)(v_prev_row.ptr[6u])); + v_t3 = ((uint32_t)(v_prev_row.ptr[7u])); + v_sum_l = (wuffs_webp__decoder__absolute_difference(self, v_c0, v_t0) + + wuffs_webp__decoder__absolute_difference(self, v_c1, v_t1) + + wuffs_webp__decoder__absolute_difference(self, v_c2, v_t2) + + wuffs_webp__decoder__absolute_difference(self, v_c3, v_t3)); + v_sum_t = (wuffs_webp__decoder__absolute_difference(self, v_c0, v_l0) + + wuffs_webp__decoder__absolute_difference(self, v_c1, v_l1) + + wuffs_webp__decoder__absolute_difference(self, v_c2, v_l2) + + wuffs_webp__decoder__absolute_difference(self, v_c3, v_l3)); + if (v_sum_l < v_sum_t) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += ((uint8_t)(v_l0)); + v_curr_row.ptr[5u] += ((uint8_t)(v_l1)); + v_curr_row.ptr[6u] += ((uint8_t)(v_l2)); + v_curr_row.ptr[7u] += ((uint8_t)(v_l3)); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += ((uint8_t)(v_t0)); + v_curr_row.ptr[5u] += ((uint8_t)(v_t1)); + v_curr_row.ptr[6u] += ((uint8_t)(v_t2)); + v_curr_row.ptr[7u] += ((uint8_t)(v_t3)); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } + } else if (v_mode == 12u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += wuffs_webp__decoder__mode12(self, v_curr_row.ptr[0u], v_prev_row.ptr[4u], v_prev_row.ptr[0u]); + v_curr_row.ptr[5u] += wuffs_webp__decoder__mode12(self, v_curr_row.ptr[1u], v_prev_row.ptr[5u], v_prev_row.ptr[1u]); + v_curr_row.ptr[6u] += wuffs_webp__decoder__mode12(self, v_curr_row.ptr[2u], v_prev_row.ptr[6u], v_prev_row.ptr[2u]); + v_curr_row.ptr[7u] += wuffs_webp__decoder__mode12(self, v_curr_row.ptr[3u], v_prev_row.ptr[7u], v_prev_row.ptr[3u]); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else if (v_mode == 13u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_curr_row.ptr[4u] += wuffs_webp__decoder__mode13(self, v_curr_row.ptr[0u], v_prev_row.ptr[4u], v_prev_row.ptr[0u]); + v_curr_row.ptr[5u] += wuffs_webp__decoder__mode13(self, v_curr_row.ptr[1u], v_prev_row.ptr[5u], v_prev_row.ptr[1u]); + v_curr_row.ptr[6u] += wuffs_webp__decoder__mode13(self, v_curr_row.ptr[2u], v_prev_row.ptr[6u], v_prev_row.ptr[2u]); + v_curr_row.ptr[7u] += wuffs_webp__decoder__mode13(self, v_curr_row.ptr[3u], v_prev_row.ptr[7u], v_prev_row.ptr[3u]); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif } - v_a += self->private_impl.f_h0; - self->private_impl.f_h0 = v_a; - v_b += self->private_impl.f_h1; - self->private_impl.f_h1 = v_b; - v_c += self->private_impl.f_h2; - self->private_impl.f_h2 = v_c; - v_d += self->private_impl.f_h3; - self->private_impl.f_h3 = v_d; - v_e += self->private_impl.f_h4; - self->private_impl.f_h4 = v_e; - v_f += self->private_impl.f_h5; - self->private_impl.f_h5 = v_f; - v_g += self->private_impl.f_h6; - self->private_impl.f_h6 = v_g; - v_h += self->private_impl.f_h7; - self->private_impl.f_h7 = v_h; - v_p.ptr += 64; - } - v_p.len = 1; - uint8_t* i_end1_p = i_slice_p.ptr + i_slice_p.len; - while (v_p.ptr < i_end1_p) { - self->private_impl.f_buf_data[v_buf_len] = v_p.ptr[0u]; - v_buf_len = ((v_buf_len + 1u) & 63u); - v_p.ptr += 1; + v_curr_row = wuffs_base__slice_u8__subslice_i(v_curr_row, 4u); + v_prev_row = wuffs_base__slice_u8__subslice_i(v_prev_row, 4u); + v_x += 1u; } - v_p.len = 0; + v_y += 1u; } - self->private_impl.f_buf_len = ((uint32_t)((((uint64_t)(a_x.len)) & 63u))); return wuffs_base__make_empty_struct(); } -// -------- func sha256.hasher.checksum_bitvec256 +// -------- func webp.decoder.absolute_difference WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__bitvec256 -wuffs_sha256__hasher__checksum_bitvec256( - const wuffs_sha256__hasher* self) { - if (!self) { - return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__make_bitvec256(0u, 0u, 0u, 0u); - } - - uint32_t v_buf_len = 0; - uint8_t v_buf_data[64] = {0}; - uint64_t v_length_in_bits = 0; - uint32_t v_w[64] = {0}; - uint32_t v_w2 = 0; - uint32_t v_w15 = 0; - uint32_t v_s0 = 0; - uint32_t v_s1 = 0; - uint32_t v_t1 = 0; - uint32_t v_t2 = 0; - uint32_t v_h0 = 0; - uint32_t v_h1 = 0; - uint32_t v_h2 = 0; - uint32_t v_h3 = 0; - uint32_t v_h4 = 0; - uint32_t v_h5 = 0; - uint32_t v_h6 = 0; - uint32_t v_h7 = 0; - uint32_t v_a = 0; - uint32_t v_b = 0; - uint32_t v_c = 0; - uint32_t v_d = 0; - uint32_t v_e = 0; - uint32_t v_f = 0; - uint32_t v_g = 0; - uint32_t v_h = 0; - uint32_t v_i = 0; - bool v_final_block = false; - - v_i = 0u; - while (v_i < 64u) { - v_buf_data[v_i] = self->private_impl.f_buf_data[v_i]; - v_i += 1u; - } - v_buf_len = (self->private_impl.f_buf_len & 63u); - if (v_buf_len < 56u) { - v_buf_data[v_buf_len] = 128u; - v_buf_len += 1u; - while (v_buf_len < 56u) { - v_buf_data[v_buf_len] = 0u; - v_buf_len += 1u; - } - v_final_block = true; - } else { - v_buf_data[v_buf_len] = 128u; - v_buf_len += 1u; - while (v_buf_len < 64u) { - v_buf_data[v_buf_len] = 0u; - v_buf_len += 1u; - } - } - v_h0 = self->private_impl.f_h0; - v_a = v_h0; - v_h1 = self->private_impl.f_h1; - v_b = v_h1; - v_h2 = self->private_impl.f_h2; - v_c = v_h2; - v_h3 = self->private_impl.f_h3; - v_d = v_h3; - v_h4 = self->private_impl.f_h4; - v_e = v_h4; - v_h5 = self->private_impl.f_h5; - v_f = v_h5; - v_h6 = self->private_impl.f_h6; - v_g = v_h6; - v_h7 = self->private_impl.f_h7; - v_h = v_h7; - while (true) { - if (v_final_block) { - v_length_in_bits = ((uint64_t)(self->private_impl.f_length_modulo_u64 * 8u)); - v_buf_data[56u] = ((uint8_t)((v_length_in_bits >> 56u))); - v_buf_data[57u] = ((uint8_t)((v_length_in_bits >> 48u))); - v_buf_data[58u] = ((uint8_t)((v_length_in_bits >> 40u))); - v_buf_data[59u] = ((uint8_t)((v_length_in_bits >> 32u))); - v_buf_data[60u] = ((uint8_t)((v_length_in_bits >> 24u))); - v_buf_data[61u] = ((uint8_t)((v_length_in_bits >> 16u))); - v_buf_data[62u] = ((uint8_t)((v_length_in_bits >> 8u))); - v_buf_data[63u] = ((uint8_t)(v_length_in_bits)); - } - v_w[0u] = ((((uint32_t)(v_buf_data[0u])) << 24u) | - (((uint32_t)(v_buf_data[1u])) << 16u) | - (((uint32_t)(v_buf_data[2u])) << 8u) | - ((uint32_t)(v_buf_data[3u]))); - v_w[1u] = ((((uint32_t)(v_buf_data[4u])) << 24u) | - (((uint32_t)(v_buf_data[5u])) << 16u) | - (((uint32_t)(v_buf_data[6u])) << 8u) | - ((uint32_t)(v_buf_data[7u]))); - v_w[2u] = ((((uint32_t)(v_buf_data[8u])) << 24u) | - (((uint32_t)(v_buf_data[9u])) << 16u) | - (((uint32_t)(v_buf_data[10u])) << 8u) | - ((uint32_t)(v_buf_data[11u]))); - v_w[3u] = ((((uint32_t)(v_buf_data[12u])) << 24u) | - (((uint32_t)(v_buf_data[13u])) << 16u) | - (((uint32_t)(v_buf_data[14u])) << 8u) | - ((uint32_t)(v_buf_data[15u]))); - v_w[4u] = ((((uint32_t)(v_buf_data[16u])) << 24u) | - (((uint32_t)(v_buf_data[17u])) << 16u) | - (((uint32_t)(v_buf_data[18u])) << 8u) | - ((uint32_t)(v_buf_data[19u]))); - v_w[5u] = ((((uint32_t)(v_buf_data[20u])) << 24u) | - (((uint32_t)(v_buf_data[21u])) << 16u) | - (((uint32_t)(v_buf_data[22u])) << 8u) | - ((uint32_t)(v_buf_data[23u]))); - v_w[6u] = ((((uint32_t)(v_buf_data[24u])) << 24u) | - (((uint32_t)(v_buf_data[25u])) << 16u) | - (((uint32_t)(v_buf_data[26u])) << 8u) | - ((uint32_t)(v_buf_data[27u]))); - v_w[7u] = ((((uint32_t)(v_buf_data[28u])) << 24u) | - (((uint32_t)(v_buf_data[29u])) << 16u) | - (((uint32_t)(v_buf_data[30u])) << 8u) | - ((uint32_t)(v_buf_data[31u]))); - v_w[8u] = ((((uint32_t)(v_buf_data[32u])) << 24u) | - (((uint32_t)(v_buf_data[33u])) << 16u) | - (((uint32_t)(v_buf_data[34u])) << 8u) | - ((uint32_t)(v_buf_data[35u]))); - v_w[9u] = ((((uint32_t)(v_buf_data[36u])) << 24u) | - (((uint32_t)(v_buf_data[37u])) << 16u) | - (((uint32_t)(v_buf_data[38u])) << 8u) | - ((uint32_t)(v_buf_data[39u]))); - v_w[10u] = ((((uint32_t)(v_buf_data[40u])) << 24u) | - (((uint32_t)(v_buf_data[41u])) << 16u) | - (((uint32_t)(v_buf_data[42u])) << 8u) | - ((uint32_t)(v_buf_data[43u]))); - v_w[11u] = ((((uint32_t)(v_buf_data[44u])) << 24u) | - (((uint32_t)(v_buf_data[45u])) << 16u) | - (((uint32_t)(v_buf_data[46u])) << 8u) | - ((uint32_t)(v_buf_data[47u]))); - v_w[12u] = ((((uint32_t)(v_buf_data[48u])) << 24u) | - (((uint32_t)(v_buf_data[49u])) << 16u) | - (((uint32_t)(v_buf_data[50u])) << 8u) | - ((uint32_t)(v_buf_data[51u]))); - v_w[13u] = ((((uint32_t)(v_buf_data[52u])) << 24u) | - (((uint32_t)(v_buf_data[53u])) << 16u) | - (((uint32_t)(v_buf_data[54u])) << 8u) | - ((uint32_t)(v_buf_data[55u]))); - v_w[14u] = ((((uint32_t)(v_buf_data[56u])) << 24u) | - (((uint32_t)(v_buf_data[57u])) << 16u) | - (((uint32_t)(v_buf_data[58u])) << 8u) | - ((uint32_t)(v_buf_data[59u]))); - v_w[15u] = ((((uint32_t)(v_buf_data[60u])) << 24u) | - (((uint32_t)(v_buf_data[61u])) << 16u) | - (((uint32_t)(v_buf_data[62u])) << 8u) | - ((uint32_t)(v_buf_data[63u]))); - v_i = 16u; - while (v_i < 64u) { - v_w2 = v_w[(v_i - 2u)]; - v_s1 = ((v_w2 >> 10u) ^ (((uint32_t)(v_w2 << 15u)) | (v_w2 >> 17u)) ^ (((uint32_t)(v_w2 << 13u)) | (v_w2 >> 19u))); - v_w15 = v_w[(v_i - 15u)]; - v_s0 = ((v_w15 >> 3u) ^ (((uint32_t)(v_w15 << 25u)) | (v_w15 >> 7u)) ^ (((uint32_t)(v_w15 << 14u)) | (v_w15 >> 18u))); - v_w[v_i] = ((uint32_t)(((uint32_t)(((uint32_t)(v_s1 + v_w[(v_i - 7u)])) + v_s0)) + v_w[(v_i - 16u)])); - v_i += 1u; - } - v_i = 0u; - while (v_i < 64u) { - v_t1 = v_h; - v_t1 += ((((uint32_t)(v_e << 26u)) | (v_e >> 6u)) ^ (((uint32_t)(v_e << 21u)) | (v_e >> 11u)) ^ (((uint32_t)(v_e << 7u)) | (v_e >> 25u))); - v_t1 += ((v_e & v_f) ^ ((4294967295u ^ v_e) & v_g)); - v_t1 += WUFFS_SHA256__K[v_i]; - v_t1 += v_w[v_i]; - v_t2 = ((((uint32_t)(v_a << 30u)) | (v_a >> 2u)) ^ (((uint32_t)(v_a << 19u)) | (v_a >> 13u)) ^ (((uint32_t)(v_a << 10u)) | (v_a >> 22u))); - v_t2 += ((v_a & v_b) ^ (v_a & v_c) ^ (v_b & v_c)); - v_h = v_g; - v_g = v_f; - v_f = v_e; - v_e = ((uint32_t)(v_d + v_t1)); - v_d = v_c; - v_c = v_b; - v_b = v_a; - v_a = ((uint32_t)(v_t1 + v_t2)); - v_i += 1u; - } - v_a += v_h0; - v_b += v_h1; - v_c += v_h2; - v_d += v_h3; - v_e += v_h4; - v_f += v_h5; - v_g += v_h6; - v_h += v_h7; - if (v_final_block) { - break; - } - v_final_block = true; - v_h0 = v_a; - v_h1 = v_b; - v_h2 = v_c; - v_h3 = v_d; - v_h4 = v_e; - v_h5 = v_f; - v_h6 = v_g; - v_h7 = v_h; - v_buf_len = 0u; - while (v_buf_len < 56u) { - v_buf_data[v_buf_len] = 0u; - v_buf_len += 1u; - } +static uint32_t +wuffs_webp__decoder__absolute_difference( + const wuffs_webp__decoder* self, + uint32_t a_a, + uint32_t a_b) { + if (a_a < a_b) { + return (a_b - a_a); } - return wuffs_base__utility__make_bitvec256( - (((uint64_t)(v_h)) | (((uint64_t)(v_g)) << 32u)), - (((uint64_t)(v_f)) | (((uint64_t)(v_e)) << 32u)), - (((uint64_t)(v_d)) | (((uint64_t)(v_c)) << 32u)), - (((uint64_t)(v_b)) | (((uint64_t)(v_a)) << 32u))); + return (a_a - a_b); } -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__SHA256) +// -------- func webp.decoder.mode12 -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__TGA) +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_webp__decoder__mode12( + const wuffs_webp__decoder* self, + uint8_t a_l, + uint8_t a_t, + uint8_t a_tl) { + uint32_t v_v = 0; -// ---------------- Status Codes Implementations + v_v = ((uint32_t)((((uint32_t)(a_l)) + ((uint32_t)(a_t))) - ((uint32_t)(a_tl)))); + if (v_v < 256u) { + return ((uint8_t)(v_v)); + } else if (v_v < 512u) { + return 255u; + } + return 0u; +} -const char wuffs_tga__error__bad_header[] = "#tga: bad header"; -const char wuffs_tga__error__bad_run_length_encoding[] = "#tga: bad run length encoding"; -const char wuffs_tga__error__truncated_input[] = "#tga: truncated input"; -const char wuffs_tga__error__unsupported_tga_file[] = "#tga: unsupported TGA file"; +// -------- func webp.decoder.mode13 -// ---------------- Private Consts +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_webp__decoder__mode13( + const wuffs_webp__decoder* self, + uint8_t a_l, + uint8_t a_t, + uint8_t a_tl) { + uint32_t v_x = 0; + uint32_t v_y = 0; + uint32_t v_z = 0; + uint32_t v_v = 0; -// ---------------- Private Initializer Prototypes + v_x = ((((uint32_t)(a_l)) + ((uint32_t)(a_t))) / 2u); + v_y = ((uint32_t)(a_tl)); + v_z = ((uint32_t)(v_x - v_y)); + v_v = ((uint32_t)(v_x + wuffs_base__utility__sign_extend_rshift_u32(((uint32_t)(v_z + (v_z >> 31u))), 1u))); + if (v_v < 256u) { + return ((uint8_t)(v_v)); + } else if (v_v < 512u) { + return 255u; + } + return 0u; +} -// ---------------- Private Function Prototypes +// -------- func webp.decoder.apply_transform_cross_color WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_tga__decoder__do_decode_image_config( - wuffs_tga__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src); +static wuffs_base__empty_struct +wuffs_webp__decoder__apply_transform_cross_color( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_pix, + wuffs_base__slice_u8 a_tile_data) { + uint32_t v_tile_size_log2 = 0; + uint32_t v_tiles_per_row = 0; + uint32_t v_mask = 0; + uint32_t v_y = 0; + uint32_t v_x = 0; + uint64_t v_t = 0; + wuffs_base__slice_u8 v_tile_data = {0}; + uint32_t v_g2r = 0; + uint32_t v_g2b = 0; + uint32_t v_r2b = 0; + uint8_t v_b = 0; + uint8_t v_g = 0; + uint8_t v_r = 0; + + v_tile_size_log2 = ((uint32_t)(self->private_impl.f_transform_tile_size_log2[1u])); + v_tiles_per_row = ((self->private_impl.f_width + ((((uint32_t)(1u)) << v_tile_size_log2) - 1u)) >> v_tile_size_log2); + v_mask = ((((uint32_t)(1u)) << v_tile_size_log2) - 1u); + v_y = 0u; + while (v_y < self->private_impl.f_height) { + v_t = ((uint64_t)((4u * (v_y >> v_tile_size_log2) * v_tiles_per_row))); + v_tile_data = wuffs_base__utility__empty_slice_u8(); + if (v_t <= ((uint64_t)(a_tile_data.len))) { + v_tile_data = wuffs_base__slice_u8__subslice_i(a_tile_data, v_t); + } + v_x = 0u; + while (v_x < self->private_impl.f_width) { + if (((v_x & v_mask) == 0u) && (((uint64_t)(v_tile_data.len)) >= 4u)) { + v_g2r = wuffs_base__utility__sign_extend_convert_u8_u32(v_tile_data.ptr[0u]); + v_g2b = wuffs_base__utility__sign_extend_convert_u8_u32(v_tile_data.ptr[1u]); + v_r2b = wuffs_base__utility__sign_extend_convert_u8_u32(v_tile_data.ptr[2u]); + v_tile_data = wuffs_base__slice_u8__subslice_i(v_tile_data, 4u); + } + if (((uint64_t)(a_pix.len)) >= 4u) { + v_b = a_pix.ptr[0u]; + v_g = a_pix.ptr[1u]; + v_r = a_pix.ptr[2u]; +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_r += ((uint8_t)((((uint32_t)(wuffs_base__utility__sign_extend_convert_u8_u32(v_g) * v_g2r)) >> 5u))); + v_b += ((uint8_t)((((uint32_t)(wuffs_base__utility__sign_extend_convert_u8_u32(v_g) * v_g2b)) >> 5u))); + v_b += ((uint8_t)((((uint32_t)(wuffs_base__utility__sign_extend_convert_u8_u32(v_r) * v_r2b)) >> 5u))); +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + a_pix.ptr[0u] = v_b; + a_pix.ptr[2u] = v_r; + a_pix = wuffs_base__slice_u8__subslice_i(a_pix, 4u); + } + v_x += 1u; + } + v_y += 1u; + } + return wuffs_base__make_empty_struct(); +} -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_tga__decoder__do_decode_frame_config( - wuffs_tga__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src); +// -------- func webp.decoder.apply_transform_subtract_green WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_tga__decoder__do_decode_frame( - wuffs_tga__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts); - -// ---------------- VTables - -const wuffs_base__image_decoder__func_ptrs -wuffs_tga__decoder__func_ptrs_for__wuffs_base__image_decoder = { - (wuffs_base__status(*)(void*, - wuffs_base__pixel_buffer*, - wuffs_base__io_buffer*, - wuffs_base__pixel_blend, - wuffs_base__slice_u8, - wuffs_base__decode_frame_options*))(&wuffs_tga__decoder__decode_frame), - (wuffs_base__status(*)(void*, - wuffs_base__frame_config*, - wuffs_base__io_buffer*))(&wuffs_tga__decoder__decode_frame_config), - (wuffs_base__status(*)(void*, - wuffs_base__image_config*, - wuffs_base__io_buffer*))(&wuffs_tga__decoder__decode_image_config), - (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_tga__decoder__frame_dirty_rect), - (uint64_t(*)(const void*, - uint32_t))(&wuffs_tga__decoder__get_quirk), - (uint32_t(*)(const void*))(&wuffs_tga__decoder__num_animation_loops), - (uint64_t(*)(const void*))(&wuffs_tga__decoder__num_decoded_frame_configs), - (uint64_t(*)(const void*))(&wuffs_tga__decoder__num_decoded_frames), - (wuffs_base__status(*)(void*, - uint64_t, - uint64_t))(&wuffs_tga__decoder__restart_frame), - (wuffs_base__status(*)(void*, - uint32_t, - uint64_t))(&wuffs_tga__decoder__set_quirk), - (wuffs_base__empty_struct(*)(void*, - uint32_t, - bool))(&wuffs_tga__decoder__set_report_metadata), - (wuffs_base__status(*)(void*, - wuffs_base__io_buffer*, - wuffs_base__more_information*, - wuffs_base__io_buffer*))(&wuffs_tga__decoder__tell_me_more), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_tga__decoder__workbuf_len), -}; - -// ---------------- Initializer Implementations - -wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_tga__decoder__initialize( - wuffs_tga__decoder* self, - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options){ - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (sizeof(*self) != sizeof_star_self) { - return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); - } - if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || - (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { - return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); - } +static wuffs_base__empty_struct +wuffs_webp__decoder__apply_transform_subtract_green( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_pix) { + wuffs_base__slice_u8 v_p = {0}; + uint8_t v_g = 0; - if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { - // The whole point of this if-check is to detect an uninitialized *self. - // We disable the warning on GCC. Clang-5.0 does not have this warning. -#if !defined(__clang__) && defined(__GNUC__) + { + wuffs_base__slice_u8 i_slice_p = a_pix; + v_p.ptr = i_slice_p.ptr; + v_p.len = 4; + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 4) * 4)); + while (v_p.ptr < i_end0_p) { + v_g = v_p.ptr[1u]; +#if defined(__GNUC__) #pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#pragma GCC diagnostic ignored "-Wconversion" #endif - if (self->private_impl.magic != 0) { - return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); - } -#if !defined(__clang__) && defined(__GNUC__) + v_p.ptr[0u] += v_g; + v_p.ptr[2u] += v_g; +#if defined(__GNUC__) #pragma GCC diagnostic pop #endif - } else { - if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { - memset(self, 0, sizeof(*self)); - options |= WUFFS_INITIALIZE__ALREADY_ZEROED; - } else { - memset(&(self->private_impl), 0, sizeof(self->private_impl)); + v_p.ptr += 4; } + v_p.len = 0; } - - self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = - wuffs_base__image_decoder__vtable_name; - self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = - (const void*)(&wuffs_tga__decoder__func_ptrs_for__wuffs_base__image_decoder); - return wuffs_base__make_status(NULL); + return wuffs_base__make_empty_struct(); } -wuffs_tga__decoder* -wuffs_tga__decoder__alloc(void) { - wuffs_tga__decoder* x = - (wuffs_tga__decoder*)(calloc(sizeof(wuffs_tga__decoder), 1)); - if (!x) { - return NULL; +// -------- func webp.decoder.apply_transform_color_indexing + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__empty_struct +wuffs_webp__decoder__apply_transform_color_indexing( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_pix) { + uint32_t v_tile_size_log2 = 0; + uint32_t v_bits_per_pixel = 0; + uint32_t v_x_mask = 0; + uint32_t v_s_mask = 0; + uint64_t v_src_index = 0; + uint32_t v_y = 0; + uint64_t v_di = 0; + uint64_t v_dj = 0; + wuffs_base__slice_u8 v_dst = {0}; + uint32_t v_x = 0; + uint32_t v_s = 0; + uint32_t v_p = 0; + uint8_t v_p0 = 0; + uint8_t v_p1 = 0; + uint8_t v_p2 = 0; + uint8_t v_p3 = 0; + + v_tile_size_log2 = ((uint32_t)(self->private_impl.f_transform_tile_size_log2[3u])); + if (v_tile_size_log2 == 0u) { + { + wuffs_base__slice_u8 i_slice_dst = a_pix; + v_dst.ptr = i_slice_dst.ptr; + v_dst.len = 4; + const uint8_t* i_end0_dst = wuffs_private_impl__ptr_u8_plus_len(v_dst.ptr, (((i_slice_dst.len - (size_t)(v_dst.ptr - i_slice_dst.ptr)) / 4) * 4)); + while (v_dst.ptr < i_end0_dst) { + v_p = (((uint32_t)(v_dst.ptr[1u])) * 4u); + v_p0 = self->private_data.f_palette[(v_p + 0u)]; + v_p1 = self->private_data.f_palette[(v_p + 1u)]; + v_p2 = self->private_data.f_palette[(v_p + 2u)]; + v_p3 = self->private_data.f_palette[(v_p + 3u)]; + v_dst.ptr[0u] = v_p0; + v_dst.ptr[1u] = v_p1; + v_dst.ptr[2u] = v_p2; + v_dst.ptr[3u] = v_p3; + v_dst.ptr += 4; + } + v_dst.len = 0; + } + return wuffs_base__make_empty_struct(); } - if (wuffs_tga__decoder__initialize( - x, sizeof(wuffs_tga__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; + v_bits_per_pixel = (((uint32_t)(8u)) >> v_tile_size_log2); + v_x_mask = ((((uint32_t)(1u)) << v_tile_size_log2) - 1u); + v_s_mask = ((((uint32_t)(1u)) << v_bits_per_pixel) - 1u); + v_src_index = ((uint64_t)((self->private_impl.f_workbuf_offset_for_color_indexing + 1u))); + v_y = 0u; + while (v_y < self->private_impl.f_height) { + v_di = ((uint64_t)((4u * (v_y + 0u) * self->private_impl.f_width))); + v_dj = ((uint64_t)((4u * (v_y + 1u) * self->private_impl.f_width))); + if ((v_di > v_dj) || (v_dj > ((uint64_t)(a_pix.len)))) { + break; + } + v_dst = wuffs_base__slice_u8__subslice_ij(a_pix, v_di, v_dj); + v_x = 0u; + while (((uint64_t)(v_dst.len)) >= 4u) { + if (((v_x & v_x_mask) == 0u) && (v_src_index < ((uint64_t)(a_pix.len)))) { + v_s = ((uint32_t)(a_pix.ptr[v_src_index])); + v_src_index += 4u; + } + v_p = ((v_s & v_s_mask) * 4u); + v_s >>= v_bits_per_pixel; + v_p0 = self->private_data.f_palette[(v_p + 0u)]; + v_p1 = self->private_data.f_palette[(v_p + 1u)]; + v_p2 = self->private_data.f_palette[(v_p + 2u)]; + v_p3 = self->private_data.f_palette[(v_p + 3u)]; + v_dst.ptr[0u] = v_p0; + v_dst.ptr[1u] = v_p1; + v_dst.ptr[2u] = v_p2; + v_dst.ptr[3u] = v_p3; + v_dst = wuffs_base__slice_u8__subslice_i(v_dst, 4u); + v_x += 1u; + } + v_y += 1u; } - return x; -} - -size_t -sizeof__wuffs_tga__decoder(void) { - return sizeof(wuffs_tga__decoder); + return wuffs_base__make_empty_struct(); } -// ---------------- Function Implementations - -// -------- func tga.decoder.get_quirk +// -------- func webp.decoder.get_quirk WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_tga__decoder__get_quirk( - const wuffs_tga__decoder* self, +wuffs_webp__decoder__get_quirk( + const wuffs_webp__decoder* self, uint32_t a_key) { if (!self) { return 0; @@ -63359,12 +78999,12 @@ wuffs_tga__decoder__get_quirk( return 0u; } -// -------- func tga.decoder.set_quirk +// -------- func webp.decoder.set_quirk WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__set_quirk( - wuffs_tga__decoder* self, +wuffs_webp__decoder__set_quirk( + wuffs_webp__decoder* self, uint32_t a_key, uint64_t a_value) { if (!self) { @@ -63380,12 +79020,12 @@ wuffs_tga__decoder__set_quirk( return wuffs_base__make_status(wuffs_base__error__unsupported_option); } -// -------- func tga.decoder.decode_image_config +// -------- func webp.decoder.decode_image_config WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__decode_image_config( - wuffs_tga__decoder* self, +wuffs_webp__decoder__decode_image_config( + wuffs_webp__decoder* self, wuffs_base__image_config* a_dst, wuffs_base__io_buffer* a_src) { if (!self) { @@ -63417,48 +79057,224 @@ wuffs_tga__decoder__decode_image_config( while (true) { { - wuffs_base__status t_0 = wuffs_tga__decoder__do_decode_image_config(self, a_dst, a_src); - v_status = t_0; + wuffs_base__status t_0 = wuffs_webp__decoder__do_decode_image_config(self, a_dst, a_src); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_webp__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_image_config = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func webp.decoder.do_decode_image_config + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__do_decode_image_config( + wuffs_webp__decoder* self, + wuffs_base__image_config* a_dst, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_c32 = 0; + uint64_t v_r_mark = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + if (self->private_impl.f_call_sequence != 0u) { + status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; + } + } + v_c32 = t_0; + } + if (v_c32 != 1179011410u) { + status = wuffs_base__make_status(wuffs_webp__error__bad_header); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 24) { + t_1 = ((uint32_t)(*scratch)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; + } + } + self->private_impl.f_riff_chunk_length = t_1; + } + if ((self->private_impl.f_riff_chunk_length & 1u) != 0u) { + status = wuffs_base__make_status(wuffs_webp__error__bad_header); + goto exit; + } + while (true) { + { + const bool o_0_closed_a_src = a_src->meta.closed; + const uint8_t* o_0_io2_a_src = io2_a_src; + wuffs_private_impl__io_reader__limit(&io2_a_src, iop_a_src, + ((uint64_t)(self->private_impl.f_riff_chunk_length))); + if (a_src) { + size_t n = ((size_t)(io2_a_src - a_src->data.ptr)); + a_src->meta.closed = a_src->meta.closed && (a_src->meta.wi <= n); + a_src->meta.wi = n; + } + v_r_mark = ((uint64_t)(iop_a_src - io0_a_src)); + { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_2 = wuffs_webp__decoder__do_decode_image_config_limited(self, a_src); + v_status = t_2; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_riff_chunk_length, ((uint32_t)(wuffs_private_impl__io__count_since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)))))); + io2_a_src = o_0_io2_a_src; + if (a_src) { + a_src->meta.closed = o_0_closed_a_src; + a_src->meta.wi = ((size_t)(io2_a_src - a_src->data.ptr)); + } } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_tga__error__truncated_input); + if (wuffs_base__status__is_ok(&v_status)) { + break; + } else if ( ! wuffs_base__status__is_suspension(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } else if ((v_status.repr == wuffs_base__suspension__short_read) && (self->private_impl.f_riff_chunk_length == 0u)) { + status = wuffs_base__make_status(wuffs_webp__error__short_chunk); goto exit; } status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); + } + self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); + if (a_dst != NULL) { + wuffs_base__image_config__set( + a_dst, + self->private_impl.f_pixfmt, + 0u, + self->private_impl.f_width, + self->private_impl.f_height, + self->private_impl.f_frame_config_io_position, + false); } + self->private_impl.f_call_sequence = 32u; ok: - self->private_impl.p_decode_image_config = 0; + self->private_impl.p_do_decode_image_config = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } + return status; } -// -------- func tga.decoder.do_decode_image_config +// -------- func webp.decoder.do_decode_image_config_limited WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_tga__decoder__do_decode_image_config( - wuffs_tga__decoder* self, - wuffs_base__image_config* a_dst, +wuffs_webp__decoder__do_decode_image_config_limited( + wuffs_webp__decoder* self, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint32_t v_c = 0; - uint32_t v_c5 = 0; - uint32_t v_i = 0; + uint32_t v_c32 = 0; + uint64_t v_r_mark = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -63471,424 +79287,280 @@ wuffs_tga__decoder__do_decode_image_config( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; - if (coro_susp_point) { - v_i = self->private_data.s_do_decode_image_config.v_i; - } + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config_limited; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_call_sequence != 0u) { - status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - goto exit; - } { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_0 = *iop_a_src++; - self->private_impl.f_header_id_length = t_0; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_1 = *iop_a_src++; - self->private_impl.f_header_color_map_type = t_1; - } - if (self->private_impl.f_header_color_map_type > 1u) { - status = wuffs_base__make_status(wuffs_tga__error__bad_header); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_2 = *iop_a_src++; - self->private_impl.f_header_image_type = t_2; - } - if ((self->private_impl.f_header_image_type == 1u) || - (self->private_impl.f_header_image_type == 2u) || - (self->private_impl.f_header_image_type == 3u) || - (self->private_impl.f_header_image_type == 9u) || - (self->private_impl.f_header_image_type == 10u) || - (self->private_impl.f_header_image_type == 11u)) { - } else { - status = wuffs_base__make_status(wuffs_tga__error__bad_header); - goto exit; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - uint16_t t_3; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_3 = wuffs_base__peek_u16le__no_bounds_check(iop_a_src); - iop_a_src += 2; + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; } else { - self->private_data.s_do_decode_image_config.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + self->private_data.s_do_decode_image_config_limited.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; - uint32_t num_bits_3 = ((uint32_t)(*scratch >> 56)); + uint64_t* scratch = &self->private_data.s_do_decode_image_config_limited.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); *scratch <<= 8; *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_3; - if (num_bits_3 == 8) { - t_3 = ((uint16_t)(*scratch)); + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch)); break; } - num_bits_3 += 8u; - *scratch |= ((uint64_t)(num_bits_3)) << 56; + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; } } - self->private_impl.f_header_color_map_first_entry_index = t_3; + v_c32 = t_0; + } + if (v_c32 != 1346520407u) { + status = wuffs_base__make_status(wuffs_webp__error__bad_header); + goto exit; } { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); - uint16_t t_4; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_4 = wuffs_base__peek_u16le__no_bounds_check(iop_a_src); - iop_a_src += 2; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; } else { - self->private_data.s_do_decode_image_config.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + self->private_data.s_do_decode_image_config_limited.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; - uint32_t num_bits_4 = ((uint32_t)(*scratch >> 56)); + uint64_t* scratch = &self->private_data.s_do_decode_image_config_limited.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); *scratch <<= 8; *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_4; - if (num_bits_4 == 8) { - t_4 = ((uint16_t)(*scratch)); + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 24) { + t_1 = ((uint32_t)(*scratch)); break; } - num_bits_4 += 8u; - *scratch |= ((uint64_t)(num_bits_4)) << 56; + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; } } - self->private_impl.f_header_color_map_length = t_4; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_5 = *iop_a_src++; - self->private_impl.f_header_color_map_entry_size = t_5; + v_c32 = t_1; } - if (self->private_impl.f_header_color_map_type != 0u) { - if ((self->private_impl.f_header_color_map_first_entry_index != 0u) || (self->private_impl.f_header_color_map_length > 256u)) { - status = wuffs_base__make_status(wuffs_tga__error__unsupported_tga_file); - goto exit; - } else if ((self->private_impl.f_header_color_map_entry_size != 15u) && - (self->private_impl.f_header_color_map_entry_size != 16u) && - (self->private_impl.f_header_color_map_entry_size != 24u) && - (self->private_impl.f_header_color_map_entry_size != 32u)) { - status = wuffs_base__make_status(wuffs_tga__error__bad_header); - goto exit; + if (v_c32 == 540561494u) { + status = wuffs_base__make_status(wuffs_webp__error__unsupported_webp_file); + goto exit; + } else if (v_c32 == 1278758998u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + uint32_t t_2; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_2 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config_limited.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_decode_image_config_limited.scratch; + uint32_t num_bits_2 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_2; + if (num_bits_2 == 24) { + t_2 = ((uint32_t)(*scratch)); + break; + } + num_bits_2 += 8u; + *scratch |= ((uint64_t)(num_bits_2)) << 56; + } + } + self->private_impl.f_sub_chunk_length = t_2; } - } else { - if ((self->private_impl.f_header_color_map_first_entry_index != 0u) || (self->private_impl.f_header_color_map_length != 0u) || (self->private_impl.f_header_color_map_entry_size != 0u)) { - status = wuffs_base__make_status(wuffs_tga__error__bad_header); + if (self->private_impl.f_sub_chunk_length < 4u) { + status = wuffs_base__make_status(wuffs_webp__error__bad_header); goto exit; } - } - self->private_data.s_do_decode_image_config.scratch = 4u; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); - if (self->private_data.s_do_decode_image_config.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_decode_image_config.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_do_decode_image_config.scratch; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); - uint32_t t_6; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_6 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_do_decode_image_config.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + self->private_impl.f_sub_chunk_has_padding = ((self->private_impl.f_sub_chunk_length & 1u) != 0u); + while (true) { + { + const bool o_0_closed_a_src = a_src->meta.closed; + const uint8_t* o_0_io2_a_src = io2_a_src; + wuffs_private_impl__io_reader__limit(&io2_a_src, iop_a_src, + ((uint64_t)(self->private_impl.f_sub_chunk_length))); + if (a_src) { + size_t n = ((size_t)(io2_a_src - a_src->data.ptr)); + a_src->meta.closed = a_src->meta.closed && (a_src->meta.wi <= n); + a_src->meta.wi = n; } - uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; - uint32_t num_bits_6 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_6; - if (num_bits_6 == 8) { - t_6 = ((uint32_t)(*scratch)); - break; + v_r_mark = ((uint64_t)(iop_a_src - io0_a_src)); + { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_3 = wuffs_webp__decoder__do_decode_image_config_limited_vp8l(self, a_src); + v_status = t_3; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } } - num_bits_6 += 8u; - *scratch |= ((uint64_t)(num_bits_6)) << 56; - } - } - self->private_impl.f_width = t_6; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); - uint32_t t_7; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_7 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_do_decode_image_config.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; + wuffs_private_impl__u32__sat_sub_indirect(&self->private_impl.f_sub_chunk_length, ((uint32_t)(wuffs_private_impl__io__count_since(v_r_mark, ((uint64_t)(iop_a_src - io0_a_src)))))); + io2_a_src = o_0_io2_a_src; + if (a_src) { + a_src->meta.closed = o_0_closed_a_src; + a_src->meta.wi = ((size_t)(io2_a_src - a_src->data.ptr)); } - uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; - uint32_t num_bits_7 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_7; - if (num_bits_7 == 8) { - t_7 = ((uint32_t)(*scratch)); - break; + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } else if ( ! wuffs_base__status__is_suspension(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; } - num_bits_7 += 8u; - *scratch |= ((uint64_t)(num_bits_7)) << 56; + goto ok; + } else if ((v_status.repr == wuffs_base__suspension__short_read) && (self->private_impl.f_sub_chunk_length == 0u)) { + status = wuffs_base__make_status(wuffs_webp__error__short_chunk); + goto exit; } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); } - self->private_impl.f_height = t_7; - } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_8 = *iop_a_src++; - self->private_impl.f_header_pixel_depth = t_8; - } - if ((self->private_impl.f_header_pixel_depth != 1u) && - (self->private_impl.f_header_pixel_depth != 8u) && - (self->private_impl.f_header_pixel_depth != 15u) && - (self->private_impl.f_header_pixel_depth != 16u) && - (self->private_impl.f_header_pixel_depth != 24u) && - (self->private_impl.f_header_pixel_depth != 32u)) { - status = wuffs_base__make_status(wuffs_tga__error__bad_header); + } else if (v_c32 == 1480085590u) { + status = wuffs_base__make_status(wuffs_webp__error__unsupported_webp_file); goto exit; - } - if (((uint8_t)(self->private_impl.f_header_image_type | 8u)) == 9u) { - self->private_impl.f_scratch_bytes_per_pixel = 1u; - self->private_impl.f_src_bytes_per_pixel = 1u; - self->private_impl.f_src_pixfmt = 2164523016u; - self->private_impl.f_opaque = ((self->private_impl.f_header_color_map_entry_size == 15u) || (self->private_impl.f_header_color_map_entry_size == 24u)); - } else if (((uint8_t)(self->private_impl.f_header_image_type | 8u)) == 10u) { - if ((self->private_impl.f_header_pixel_depth == 15u) || (self->private_impl.f_header_pixel_depth == 16u)) { - self->private_impl.f_scratch_bytes_per_pixel = 4u; - self->private_impl.f_src_bytes_per_pixel = 0u; - self->private_impl.f_src_pixfmt = 2164295816u; - } else if (self->private_impl.f_header_pixel_depth == 24u) { - self->private_impl.f_scratch_bytes_per_pixel = 3u; - self->private_impl.f_src_bytes_per_pixel = 3u; - self->private_impl.f_src_pixfmt = 2147485832u; - self->private_impl.f_opaque = true; - } else if (self->private_impl.f_header_pixel_depth == 32u) { - self->private_impl.f_scratch_bytes_per_pixel = 4u; - self->private_impl.f_src_bytes_per_pixel = 4u; - self->private_impl.f_src_pixfmt = 2164295816u; - } else { - status = wuffs_base__make_status(wuffs_tga__error__unsupported_tga_file); - goto exit; - } } else { - if (self->private_impl.f_header_pixel_depth == 8u) { - self->private_impl.f_scratch_bytes_per_pixel = 1u; - self->private_impl.f_src_bytes_per_pixel = 1u; - self->private_impl.f_src_pixfmt = 536870920u; - self->private_impl.f_opaque = true; - } else { - status = wuffs_base__make_status(wuffs_tga__error__unsupported_tga_file); - goto exit; - } + status = wuffs_base__make_status(wuffs_webp__error__bad_header); + goto exit; } + + ok: + self->private_impl.p_do_decode_image_config_limited = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_do_decode_image_config_limited = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + + return status; +} + +// -------- func webp.decoder.do_decode_image_config_limited_vp8l + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_webp__decoder__do_decode_image_config_limited_vp8l( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint32_t v_c32 = 0; + uint32_t v_transform_size = 0; + + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config_limited_vp8l; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint8_t t_9 = *iop_a_src++; - self->private_impl.f_header_image_descriptor = t_9; + uint32_t t_0 = *iop_a_src++; + v_c32 = t_0; } - if (((uint8_t)(self->private_impl.f_header_image_descriptor & 16u)) != 0u) { - status = wuffs_base__make_status(wuffs_tga__error__unsupported_tga_file); + if (v_c32 != 47u) { + status = wuffs_base__make_status(wuffs_webp__error__bad_header); goto exit; } - self->private_data.s_do_decode_image_config.scratch = ((uint32_t)(self->private_impl.f_header_id_length)); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); - if (self->private_data.s_do_decode_image_config.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_decode_image_config.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_do_decode_image_config.scratch; - if (self->private_impl.f_header_color_map_type != 0u) { - while (v_i < ((uint32_t)(self->private_impl.f_header_color_map_length))) { - if (self->private_impl.f_header_color_map_entry_size == 24u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(17); - uint32_t t_10; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 3)) { - t_10 = ((uint32_t)(wuffs_base__peek_u24le__no_bounds_check(iop_a_src))); - iop_a_src += 3; - } else { - self->private_data.s_do_decode_image_config.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(18); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; - uint32_t num_bits_10 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_10; - if (num_bits_10 == 16) { - t_10 = ((uint32_t)(*scratch)); - break; - } - num_bits_10 += 8u; - *scratch |= ((uint64_t)(num_bits_10)) << 56; - } - } - v_c = t_10; - } - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 0u)] = ((uint8_t)((v_c >> 0u))); - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 1u)] = ((uint8_t)((v_c >> 8u))); - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 2u)] = ((uint8_t)((v_c >> 16u))); - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 3u)] = 255u; - } else if (self->private_impl.f_header_color_map_entry_size == 32u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(19); - uint32_t t_11; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_11 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_decode_image_config.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(20); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; - uint32_t num_bits_11 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_11; - if (num_bits_11 == 24) { - t_11 = ((uint32_t)(*scratch)); - break; - } - num_bits_11 += 8u; - *scratch |= ((uint64_t)(num_bits_11)) << 56; - } - } - v_c = t_11; - } - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 0u)] = ((uint8_t)((v_c >> 0u))); - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 1u)] = ((uint8_t)((v_c >> 8u))); - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 2u)] = ((uint8_t)((v_c >> 16u))); - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 3u)] = ((uint8_t)((v_c >> 24u))); - } else { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(21); - uint32_t t_12; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { - t_12 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2; - } else { - self->private_data.s_do_decode_image_config.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(22); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_decode_image_config.scratch; - uint32_t num_bits_12 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_12; - if (num_bits_12 == 8) { - t_12 = ((uint32_t)(*scratch)); - break; - } - num_bits_12 += 8u; - *scratch |= ((uint64_t)(num_bits_12)) << 56; - } - } - v_c = t_12; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_1 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_decode_image_config_limited_vp8l.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - v_c5 = (31u & (v_c >> 0u)); - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 0u)] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); - v_c5 = (31u & (v_c >> 5u)); - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 1u)] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); - v_c5 = (31u & (v_c >> 10u)); - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 2u)] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); - self->private_data.f_src_palette[(((v_i & 255u) * 4u) + 3u)] = 255u; + uint64_t* scratch = &self->private_data.s_do_decode_image_config_limited_vp8l.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 24) { + t_1 = ((uint32_t)(*scratch)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; } - v_i += 1u; - } - while (v_i < 256u) { - self->private_data.f_src_palette[((v_i * 4u) + 0u)] = 0u; - self->private_data.f_src_palette[((v_i * 4u) + 1u)] = 0u; - self->private_data.f_src_palette[((v_i * 4u) + 2u)] = 0u; - self->private_data.f_src_palette[((v_i * 4u) + 3u)] = 255u; - v_i += 1u; } + v_c32 = t_1; } - self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); - if (a_dst != NULL) { - wuffs_base__image_config__set( - a_dst, - self->private_impl.f_src_pixfmt, - 0u, - self->private_impl.f_width, - self->private_impl.f_height, - self->private_impl.f_frame_config_io_position, - self->private_impl.f_opaque); + self->private_impl.f_width = ((v_c32 & 16383u) + 1u); + v_c32 >>= 14u; + self->private_impl.f_height = ((v_c32 & 16383u) + 1u); + v_c32 >>= 14u; + self->private_impl.f_pixfmt = 2415954056u; + if ((v_c32 & 1u) != 0u) { + self->private_impl.f_pixfmt = 2164295816u; } - self->private_impl.f_call_sequence = 32u; + v_c32 >>= 1u; + if (v_c32 != 0u) { + status = wuffs_base__make_status(wuffs_webp__error__bad_header); + goto exit; + } + v_transform_size = (4u * ((self->private_impl.f_width + 3u) >> 2u) * ((self->private_impl.f_height + 3u) >> 2u)); + self->private_impl.f_workbuf_offset_for_transform[0u] = ((4u * self->private_impl.f_width * self->private_impl.f_height) + (0u * v_transform_size)); + self->private_impl.f_workbuf_offset_for_transform[1u] = ((4u * self->private_impl.f_width * self->private_impl.f_height) + (1u * v_transform_size)); + self->private_impl.f_workbuf_offset_for_transform[2u] = ((4u * self->private_impl.f_width * self->private_impl.f_height) + (2u * v_transform_size)); + self->private_impl.f_workbuf_offset_for_transform[3u] = ((4u * self->private_impl.f_width * self->private_impl.f_height) + (3u * v_transform_size)); goto ok; ok: - self->private_impl.p_do_decode_image_config = 0; + self->private_impl.p_do_decode_image_config_limited_vp8l = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_do_decode_image_config.v_i = v_i; + self->private_impl.p_do_decode_image_config_limited_vp8l = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: @@ -63899,12 +79571,12 @@ wuffs_tga__decoder__do_decode_image_config( return status; } -// -------- func tga.decoder.decode_frame_config +// -------- func webp.decoder.decode_frame_config WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__decode_frame_config( - wuffs_tga__decoder* self, +wuffs_webp__decoder__decode_frame_config( + wuffs_webp__decoder* self, wuffs_base__frame_config* a_dst, wuffs_base__io_buffer* a_src) { if (!self) { @@ -63936,11 +79608,11 @@ wuffs_tga__decoder__decode_frame_config( while (true) { { - wuffs_base__status t_0 = wuffs_tga__decoder__do_decode_frame_config(self, a_dst, a_src); + wuffs_base__status t_0 = wuffs_webp__decoder__do_decode_frame_config(self, a_dst, a_src); v_status = t_0; } if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_tga__error__truncated_input); + status = wuffs_base__make_status(wuffs_webp__error__truncated_input); goto exit; } status = v_status; @@ -63965,12 +79637,12 @@ wuffs_tga__decoder__decode_frame_config( return status; } -// -------- func tga.decoder.do_decode_frame_config +// -------- func webp.decoder.do_decode_frame_config WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_tga__decoder__do_decode_frame_config( - wuffs_tga__decoder* self, +wuffs_webp__decoder__do_decode_frame_config( + wuffs_webp__decoder* self, wuffs_base__frame_config* a_dst, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); @@ -63996,7 +79668,7 @@ wuffs_tga__decoder__do_decode_frame_config( a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_tga__decoder__do_decode_image_config(self, NULL, a_src); + status = wuffs_webp__decoder__do_decode_image_config(self, NULL, a_src); if (a_src) { iop_a_src = a_src->data.ptr + a_src->meta.ri; } @@ -64028,9 +79700,9 @@ wuffs_tga__decoder__do_decode_frame_config( 0u, self->private_impl.f_frame_config_io_position, 0u, - self->private_impl.f_opaque, false, - 4278190080u); + false, + 0u); } self->private_impl.f_call_sequence = 64u; @@ -64044,540 +79716,25 @@ wuffs_tga__decoder__do_decode_frame_config( self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - - return status; -} - -// -------- func tga.decoder.decode_frame - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__decode_frame( - wuffs_tga__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 3)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - uint32_t coro_susp_point = self->private_impl.p_decode_frame; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - while (true) { - { - wuffs_base__status t_0 = wuffs_tga__decoder__do_decode_frame(self, - a_dst, - a_src, - a_blend, - a_workbuf, - a_opts); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_tga__error__truncated_input); - goto exit; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - } - - ok: - self->private_impl.p_decode_frame = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; - - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - } - return status; -} - -// -------- func tga.decoder.do_decode_frame - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_tga__decoder__do_decode_frame( - wuffs_tga__decoder* self, - wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { - wuffs_base__status status = wuffs_base__make_status(NULL); - - wuffs_base__status v_status = wuffs_base__make_status(NULL); - wuffs_base__pixel_format v_dst_pixfmt = {0}; - uint32_t v_dst_bits_per_pixel = 0; - uint64_t v_dst_bytes_per_pixel = 0; - uint32_t v_dst_x = 0; - uint32_t v_dst_y = 0; - wuffs_base__table_u8 v_tab = {0}; - wuffs_base__slice_u8 v_dst_palette = {0}; - wuffs_base__slice_u8 v_dst = {0}; - uint64_t v_dst_start = 0; - wuffs_base__slice_u8 v_src_palette = {0}; - uint64_t v_mark = 0; - uint64_t v_num_pixels64 = 0; - uint32_t v_num_pixels32 = 0; - uint32_t v_lit_length = 0; - uint32_t v_run_length = 0; - uint64_t v_num_dst_bytes = 0; - uint32_t v_num_src_bytes = 0; - uint32_t v_c = 0; - uint32_t v_c5 = 0; - - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; - } - - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; - if (coro_susp_point) { - v_dst_bytes_per_pixel = self->private_data.s_do_decode_frame.v_dst_bytes_per_pixel; - v_dst_x = self->private_data.s_do_decode_frame.v_dst_x; - v_dst_y = self->private_data.s_do_decode_frame.v_dst_y; - v_mark = self->private_data.s_do_decode_frame.v_mark; - v_num_pixels32 = self->private_data.s_do_decode_frame.v_num_pixels32; - v_lit_length = self->private_data.s_do_decode_frame.v_lit_length; - v_run_length = self->private_data.s_do_decode_frame.v_run_length; - v_num_dst_bytes = self->private_data.s_do_decode_frame.v_num_dst_bytes; - } - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - if (self->private_impl.f_call_sequence == 64u) { - } else if (self->private_impl.f_call_sequence < 64u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_tga__decoder__do_decode_frame_config(self, NULL, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - } else { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } - if (self->private_impl.f_header_color_map_type != 0u) { - v_src_palette = wuffs_base__make_slice_u8(self->private_data.f_src_palette, 1024); - } - v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, - wuffs_base__pixel_buffer__pixel_format(a_dst), - wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)), - wuffs_base__utility__make_pixel_format(self->private_impl.f_src_pixfmt), - v_src_palette, - a_blend); - if ( ! wuffs_base__status__is_ok(&v_status)) { - status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; - } - goto ok; - } - v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); - v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); - if ((v_dst_bits_per_pixel & 7u) != 0u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_option); - goto exit; - } - v_dst_bytes_per_pixel = ((uint64_t)((v_dst_bits_per_pixel / 8u))); - if (((uint8_t)(self->private_impl.f_header_image_descriptor & 32u)) == 0u) { - v_dst_y = ((uint32_t)(self->private_impl.f_height - 1u)); - } - if (((uint8_t)(self->private_impl.f_header_image_type & 8u)) == 0u) { - v_lit_length = self->private_impl.f_width; - } - label__resume__continue:; - while (true) { - v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); - v_dst_palette = wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_dst_palette, 1024)); - while (v_dst_y < self->private_impl.f_height) { - v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, v_dst_y); - v_dst_start = (((uint64_t)(v_dst_x)) * v_dst_bytes_per_pixel); - if (v_dst_start <= ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_start); - } else { - v_dst = wuffs_base__utility__empty_slice_u8(); - } - while (v_dst_x < self->private_impl.f_width) { - if (self->private_impl.f_src_bytes_per_pixel > 0u) { - if (v_lit_length > 0u) { - v_mark = ((uint64_t)(iop_a_src - io0_a_src)); - v_num_pixels64 = (((uint64_t)(io2_a_src - iop_a_src)) / ((uint64_t)(self->private_impl.f_src_bytes_per_pixel))); - v_num_pixels32 = ((uint32_t)(wuffs_base__u64__min(v_num_pixels64, ((uint64_t)(v_lit_length))))); - v_num_dst_bytes = (((uint64_t)(v_num_pixels32)) * v_dst_bytes_per_pixel); - v_num_src_bytes = (v_num_pixels32 * self->private_impl.f_src_bytes_per_pixel); - self->private_data.s_do_decode_frame.scratch = v_num_src_bytes; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (self->private_data.s_do_decode_frame.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { - self->private_data.s_do_decode_frame.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); - iop_a_src = io2_a_src; - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - iop_a_src += self->private_data.s_do_decode_frame.scratch; - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_private_impl__io__since(v_mark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); - if (v_num_dst_bytes <= ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_num_dst_bytes); - } else { - v_dst = wuffs_base__utility__empty_slice_u8(); - } - v_dst_x += v_num_pixels32; - v_lit_length = (((uint32_t)(v_lit_length - v_num_pixels32)) & 65535u); - if (v_lit_length > 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(3); - goto label__resume__continue; - } - } else if (v_run_length > 0u) { - v_run_length -= 1u; - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, self->private_impl.f_scratch_bytes_per_pixel)); - if (v_dst_bytes_per_pixel <= ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_bytes_per_pixel); - } - v_dst_x += 1u; - } else { - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(4); - goto label__resume__continue; - } - if (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) < 128u) { - v_lit_length = (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) + 1u); - iop_a_src += 1u; - if ((v_lit_length + v_dst_x) > self->private_impl.f_width) { - status = wuffs_base__make_status(wuffs_tga__error__bad_run_length_encoding); - goto exit; - } - } else { - if (self->private_impl.f_src_bytes_per_pixel == 1u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 2u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); - goto label__resume__continue; - } - v_run_length = ((((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) & 127u) + 1u); - iop_a_src += 1u; - self->private_data.f_scratch[0u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - } else if (self->private_impl.f_src_bytes_per_pixel == 3u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); - goto label__resume__continue; - } - v_run_length = ((((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) & 127u) + 1u); - iop_a_src += 1u; - self->private_data.f_scratch[0u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - self->private_data.f_scratch[1u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - self->private_data.f_scratch[2u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - } else { - if (((uint64_t)(io2_a_src - iop_a_src)) < 5u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); - goto label__resume__continue; - } - v_run_length = ((((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) & 127u) + 1u); - iop_a_src += 1u; - self->private_data.f_scratch[0u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - self->private_data.f_scratch[1u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - self->private_data.f_scratch[2u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - self->private_data.f_scratch[3u] = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - } - if ((v_run_length + v_dst_x) > self->private_impl.f_width) { - status = wuffs_base__make_status(wuffs_tga__error__bad_run_length_encoding); - goto exit; - } - } - } - } else { - if (v_lit_length > 0u) { - if (((uint64_t)(io2_a_src - iop_a_src)) < 2u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(8); - goto label__resume__continue; - } - v_c = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2u; - v_c5 = (31u & (v_c >> 0u)); - self->private_data.f_scratch[0u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); - v_c5 = (31u & (v_c >> 5u)); - self->private_data.f_scratch[1u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); - v_c5 = (31u & (v_c >> 10u)); - self->private_data.f_scratch[2u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); - self->private_data.f_scratch[3u] = 255u; - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, 4)); - if (v_dst_bytes_per_pixel <= ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_bytes_per_pixel); - } - v_dst_x += 1u; - v_lit_length -= 1u; - } else if (v_run_length > 0u) { - v_run_length -= 1u; - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__make_slice_u8(self->private_data.f_scratch, self->private_impl.f_scratch_bytes_per_pixel)); - if (v_dst_bytes_per_pixel <= ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_bytes_per_pixel); - } - v_dst_x += 1u; - } else { - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); - goto label__resume__continue; - } - if (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) < 128u) { - v_lit_length = (((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) + 1u); - iop_a_src += 1u; - if ((v_lit_length + v_dst_x) > self->private_impl.f_width) { - status = wuffs_base__make_status(wuffs_tga__error__bad_run_length_encoding); - goto exit; - } - } else { - if (((uint64_t)(io2_a_src - iop_a_src)) < 3u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(10); - goto label__resume__continue; - } - v_run_length = ((((uint32_t)(wuffs_base__peek_u8be__no_bounds_check(iop_a_src))) & 127u) + 1u); - iop_a_src += 1u; - v_c = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); - iop_a_src += 2u; - v_c5 = (31u & (v_c >> 0u)); - self->private_data.f_scratch[0u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); - v_c5 = (31u & (v_c >> 5u)); - self->private_data.f_scratch[1u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); - v_c5 = (31u & (v_c >> 10u)); - self->private_data.f_scratch[2u] = ((uint8_t)(((v_c5 << 3u) | (v_c5 >> 2u)))); - self->private_data.f_scratch[3u] = 255u; - if ((v_run_length + v_dst_x) > self->private_impl.f_width) { - status = wuffs_base__make_status(wuffs_tga__error__bad_run_length_encoding); - goto exit; - } - } - } - } - } - v_dst_x = 0u; - if (((uint8_t)(self->private_impl.f_header_image_descriptor & 32u)) == 0u) { - v_dst_y -= 1u; - } else { - v_dst_y += 1u; - } - if (((uint8_t)(self->private_impl.f_header_image_type & 8u)) == 0u) { - v_lit_length = self->private_impl.f_width; - } - } - break; - } - self->private_impl.f_call_sequence = 96u; - - ok: - self->private_impl.p_do_decode_frame = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_do_decode_frame.v_dst_bytes_per_pixel = v_dst_bytes_per_pixel; - self->private_data.s_do_decode_frame.v_dst_x = v_dst_x; - self->private_data.s_do_decode_frame.v_dst_y = v_dst_y; - self->private_data.s_do_decode_frame.v_mark = v_mark; - self->private_data.s_do_decode_frame.v_num_pixels32 = v_num_pixels32; - self->private_data.s_do_decode_frame.v_lit_length = v_lit_length; - self->private_data.s_do_decode_frame.v_run_length = v_run_length; - self->private_data.s_do_decode_frame.v_num_dst_bytes = v_num_dst_bytes; - - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - - return status; -} - -// -------- func tga.decoder.frame_dirty_rect - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 -wuffs_tga__decoder__frame_dirty_rect( - const wuffs_tga__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_rect_ie_u32(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_rect_ie_u32(); - } - - return wuffs_base__utility__make_rect_ie_u32( - 0u, - 0u, - self->private_impl.f_width, - self->private_impl.f_height); -} - -// -------- func tga.decoder.num_animation_loops - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_tga__decoder__num_animation_loops( - const wuffs_tga__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - return 0u; -} - -// -------- func tga.decoder.num_decoded_frame_configs - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_tga__decoder__num_decoded_frame_configs( - const wuffs_tga__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - if (self->private_impl.f_call_sequence > 32u) { - return 1u; - } - return 0u; -} - -// -------- func tga.decoder.num_decoded_frames - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_tga__decoder__num_decoded_frames( - const wuffs_tga__decoder* self) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; - } - - if (self->private_impl.f_call_sequence > 64u) { - return 1u; - } - return 0u; -} - -// -------- func tga.decoder.restart_frame - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__restart_frame( - wuffs_tga__decoder* self, - uint64_t a_index, - uint64_t a_io_position) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - - if (self->private_impl.f_call_sequence < 32u) { - return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - } - if (a_index != 0u) { - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - self->private_impl.f_call_sequence = 40u; - self->private_impl.f_frame_config_io_position = a_io_position; - return wuffs_base__make_status(NULL); -} - -// -------- func tga.decoder.set_report_metadata + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_tga__decoder__set_report_metadata( - wuffs_tga__decoder* self, - uint32_t a_fourcc, - bool a_report) { - return wuffs_base__make_empty_struct(); + return status; } -// -------- func tga.decoder.tell_me_more +// -------- func webp.decoder.decode_frame WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_tga__decoder__tell_me_more( - wuffs_tga__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__more_information* a_minfo, - wuffs_base__io_buffer* a_src) { +wuffs_webp__decoder__decode_frame( + wuffs_webp__decoder* self, + wuffs_base__pixel_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__pixel_blend a_blend, + wuffs_base__slice_u8 a_workbuf, + wuffs_base__decode_frame_options* a_opts) { if (!self) { return wuffs_base__make_status(wuffs_base__error__bad_receiver); } @@ -64592,18 +79749,47 @@ wuffs_tga__decoder__tell_me_more( return wuffs_base__make_status(wuffs_base__error__bad_argument); } if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 4)) { + (self->private_impl.active_coroutine != 3)) { self->private_impl.magic = WUFFS_BASE__DISABLED; return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); } self->private_impl.active_coroutine = 0; wuffs_base__status status = wuffs_base__make_status(NULL); - status = wuffs_base__make_status(wuffs_base__error__no_more_information); - goto exit; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_decode_frame; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_webp__decoder__do_decode_frame(self, + a_dst, + a_src, + a_blend, + a_workbuf, + a_opts); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_webp__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_decode_frame = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; - goto ok; - ok: goto exit; exit: if (wuffs_base__status__is_error(&status)) { @@ -64612,289 +79798,503 @@ wuffs_tga__decoder__tell_me_more( return status; } -// -------- func tga.decoder.workbuf_len - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_tga__decoder__workbuf_len( - const wuffs_tga__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); - } - - return wuffs_base__utility__make_range_ii_u64(0u, 0u); -} - -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__TGA) - -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WBMP) - -// ---------------- Status Codes Implementations - -const char wuffs_wbmp__error__bad_header[] = "#wbmp: bad header"; -const char wuffs_wbmp__error__truncated_input[] = "#wbmp: truncated input"; - -// ---------------- Private Consts - -// ---------------- Private Initializer Prototypes - -// ---------------- Private Function Prototypes - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_wbmp__decoder__do_decode_image_config( - wuffs_wbmp__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src); - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_wbmp__decoder__do_decode_frame_config( - wuffs_wbmp__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src); +// -------- func webp.decoder.do_decode_frame WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_wbmp__decoder__do_decode_frame( - wuffs_wbmp__decoder* self, +wuffs_webp__decoder__do_decode_frame( + wuffs_webp__decoder* self, wuffs_base__pixel_buffer* a_dst, wuffs_base__io_buffer* a_src, wuffs_base__pixel_blend a_blend, wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts); - -// ---------------- VTables - -const wuffs_base__image_decoder__func_ptrs -wuffs_wbmp__decoder__func_ptrs_for__wuffs_base__image_decoder = { - (wuffs_base__status(*)(void*, - wuffs_base__pixel_buffer*, - wuffs_base__io_buffer*, - wuffs_base__pixel_blend, - wuffs_base__slice_u8, - wuffs_base__decode_frame_options*))(&wuffs_wbmp__decoder__decode_frame), - (wuffs_base__status(*)(void*, - wuffs_base__frame_config*, - wuffs_base__io_buffer*))(&wuffs_wbmp__decoder__decode_frame_config), - (wuffs_base__status(*)(void*, - wuffs_base__image_config*, - wuffs_base__io_buffer*))(&wuffs_wbmp__decoder__decode_image_config), - (wuffs_base__rect_ie_u32(*)(const void*))(&wuffs_wbmp__decoder__frame_dirty_rect), - (uint64_t(*)(const void*, - uint32_t))(&wuffs_wbmp__decoder__get_quirk), - (uint32_t(*)(const void*))(&wuffs_wbmp__decoder__num_animation_loops), - (uint64_t(*)(const void*))(&wuffs_wbmp__decoder__num_decoded_frame_configs), - (uint64_t(*)(const void*))(&wuffs_wbmp__decoder__num_decoded_frames), - (wuffs_base__status(*)(void*, - uint64_t, - uint64_t))(&wuffs_wbmp__decoder__restart_frame), - (wuffs_base__status(*)(void*, - uint32_t, - uint64_t))(&wuffs_wbmp__decoder__set_quirk), - (wuffs_base__empty_struct(*)(void*, - uint32_t, - bool))(&wuffs_wbmp__decoder__set_report_metadata), - (wuffs_base__status(*)(void*, - wuffs_base__io_buffer*, - wuffs_base__more_information*, - wuffs_base__io_buffer*))(&wuffs_wbmp__decoder__tell_me_more), - (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_wbmp__decoder__workbuf_len), -}; + wuffs_base__decode_frame_options* a_opts) { + wuffs_base__status status = wuffs_base__make_status(NULL); -// ---------------- Initializer Implementations + uint8_t v_c8 = 0; + uint32_t v_has_more = 0; + uint32_t v_width = 0; + wuffs_base__slice_u8 v_dst = {0}; + wuffs_base__slice_u8 v_tile_data = {0}; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + wuffs_base__slice_u8 v_pix = {0}; + uint32_t v_which = 0; + uint32_t v_transform_type = 0; + uint64_t v_ti = 0; + uint64_t v_tj = 0; -wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_wbmp__decoder__initialize( - wuffs_wbmp__decoder* self, - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options){ - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (sizeof(*self) != sizeof_star_self) { - return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || - (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { - return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + + uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; + if (coro_susp_point) { + v_width = self->private_data.s_do_decode_frame.v_width; } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { - // The whole point of this if-check is to detect an uninitialized *self. - // We disable the warning on GCC. Clang-5.0 does not have this warning. -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" -#endif - if (self->private_impl.magic != 0) { - return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); - } -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } else { - if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { - memset(self, 0, sizeof(*self)); - options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + if (self->private_impl.f_call_sequence == 64u) { + } else if (self->private_impl.f_call_sequence < 64u) { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_webp__decoder__do_decode_frame_config(self, NULL, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } } else { - memset(&(self->private_impl), 0, sizeof(self->private_impl)); + status = wuffs_base__make_status(wuffs_base__note__end_of_data); + goto ok; } - } - - self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__image_decoder.vtable_name = - wuffs_base__image_decoder__vtable_name; - self->private_impl.vtable_for__wuffs_base__image_decoder.function_pointers = - (const void*)(&wuffs_wbmp__decoder__func_ptrs_for__wuffs_base__image_decoder); - return wuffs_base__make_status(NULL); -} - -wuffs_wbmp__decoder* -wuffs_wbmp__decoder__alloc(void) { - wuffs_wbmp__decoder* x = - (wuffs_wbmp__decoder*)(calloc(sizeof(wuffs_wbmp__decoder), 1)); - if (!x) { - return NULL; - } - if (wuffs_wbmp__decoder__initialize( - x, sizeof(wuffs_wbmp__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; - } - return x; -} - -size_t -sizeof__wuffs_wbmp__decoder(void) { - return sizeof(wuffs_wbmp__decoder); -} - -// ---------------- Function Implementations - -// -------- func wbmp.decoder.get_quirk + self->private_impl.f_seen_transform[0u] = false; + self->private_impl.f_seen_transform[1u] = false; + self->private_impl.f_seen_transform[2u] = false; + self->private_impl.f_seen_transform[3u] = false; + self->private_impl.f_n_transforms = 0u; + while (true) { + if (self->private_impl.f_n_bits < 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + self->private_impl.f_bits = ((uint32_t)(v_c8)); + self->private_impl.f_n_bits = 8u; + } + v_has_more = (self->private_impl.f_bits & 1u); + self->private_impl.f_bits >>= 1u; + self->private_impl.f_n_bits -= 1u; + if (v_has_more == 0u) { + break; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + status = wuffs_webp__decoder__decode_transform(self, a_src, a_workbuf); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + } + v_width = self->private_impl.f_width; + if (self->private_impl.f_seen_transform[3u]) { + v_width = self->private_impl.f_color_indexing_width; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + status = wuffs_webp__decoder__decode_color_cache_parameters(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + self->private_impl.f_overall_color_cache_bits = self->private_impl.f_color_cache_bits; + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + status = wuffs_webp__decoder__decode_hg_table(self, a_src, v_width, a_workbuf); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + self->private_impl.f_color_cache_bits = self->private_impl.f_overall_color_cache_bits; + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + status = wuffs_webp__decoder__decode_huffman_groups(self, a_src, self->private_impl.f_overall_n_huffman_groups); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + while (true) { + if ((((uint64_t)(self->private_impl.f_workbuf_offset_for_color_indexing)) > ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u]))) || + (((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u])) > ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u]))) || + (((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u])) > ((uint64_t)(a_workbuf.len))) || + (((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u])) > ((uint64_t)(a_workbuf.len)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); + goto exit; + } + v_dst = wuffs_base__slice_u8__subslice_ij(a_workbuf, + ((uint64_t)(self->private_impl.f_workbuf_offset_for_color_indexing)), + ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u]))); + v_tile_data = wuffs_base__slice_u8__subslice_ij(a_workbuf, + ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u])), + ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u]))); + { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_1 = wuffs_webp__decoder__decode_pixels(self, + v_dst, + a_src, + v_width, + self->private_impl.f_height, + v_tile_data, + self->private_impl.f_overall_tile_size_log2); + v_status = t_1; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(7); + } + if (((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u])) > ((uint64_t)(a_workbuf.len))) { + status = wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); + goto exit; + } + v_pix = wuffs_base__slice_u8__subslice_j(a_workbuf, ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u]))); + v_which = self->private_impl.f_n_transforms; + while (v_which > 0u) { + v_which -= 1u; + v_transform_type = ((uint32_t)(self->private_impl.f_transform_type[v_which])); + v_tile_data = wuffs_base__utility__empty_slice_u8(); + if (v_transform_type < 2u) { + v_ti = ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[(v_transform_type + 1u)])); + v_tj = ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[(v_transform_type + 2u)])); + if ((v_ti <= v_tj) && (v_tj <= ((uint64_t)(a_workbuf.len)))) { + v_tile_data = wuffs_base__slice_u8__subslice_ij(a_workbuf, v_ti, v_tj); + } + } + if (v_transform_type == 0u) { + wuffs_webp__decoder__apply_transform_predictor(self, v_pix, v_tile_data); + } else if (v_transform_type == 1u) { + wuffs_webp__decoder__apply_transform_cross_color(self, v_pix, v_tile_data); + } else if (v_transform_type == 2u) { + wuffs_webp__decoder__apply_transform_subtract_green(self, v_pix); + } else { + wuffs_webp__decoder__apply_transform_color_indexing(self, v_pix); + v_width = self->private_impl.f_width; + } + } + v_status = wuffs_webp__decoder__swizzle(self, a_dst, v_pix, a_blend); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = v_status; + if (wuffs_base__status__is_error(&status)) { + goto exit; + } else if (wuffs_base__status__is_suspension(&status)) { + status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); + goto exit; + } + goto ok; + } + self->private_impl.f_call_sequence = 96u; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_wbmp__decoder__get_quirk( - const wuffs_wbmp__decoder* self, - uint32_t a_key) { - if (!self) { - return 0; - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + ok: + self->private_impl.p_do_decode_frame = 0; + goto exit; } - return 0u; -} - -// -------- func wbmp.decoder.set_quirk + goto suspend; + suspend: + self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_decode_frame.v_width = v_width; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__set_quirk( - wuffs_wbmp__decoder* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); + goto exit; + exit: + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - return wuffs_base__make_status(wuffs_base__error__unsupported_option); + return status; } -// -------- func wbmp.decoder.decode_image_config +// -------- func webp.decoder.decode_transform WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__decode_image_config( - wuffs_wbmp__decoder* self, - wuffs_base__image_config* a_dst, - wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 1)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; +static wuffs_base__status +wuffs_webp__decoder__decode_transform( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { wuffs_base__status status = wuffs_base__make_status(NULL); wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint8_t v_c8 = 0; + uint32_t v_transform_type = 0; + uint32_t v_tile_size_log2 = 0; + wuffs_base__slice_u8 v_p = {0}; - uint32_t coro_susp_point = self->private_impl.p_decode_image_config; + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; + } + + uint32_t coro_susp_point = self->private_impl.p_decode_transform; + if (coro_susp_point) { + v_transform_type = self->private_data.s_decode_transform.v_transform_type; + v_tile_size_log2 = self->private_data.s_decode_transform.v_tile_size_log2; + } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - while (true) { + if (self->private_impl.f_n_bits < 2u) { { - wuffs_base__status t_0 = wuffs_wbmp__decoder__do_decode_image_config(self, a_dst, a_src); - v_status = t_0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + if (self->private_impl.f_n_bits >= 2u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + v_transform_type = (self->private_impl.f_bits & 3u); + self->private_impl.f_bits >>= 2u; + self->private_impl.f_n_bits -= 2u; + if (self->private_impl.f_seen_transform[v_transform_type] || (self->private_impl.f_n_transforms >= 4u)) { + status = wuffs_base__make_status(wuffs_webp__error__bad_transform); + goto exit; + } else if (self->private_impl.f_seen_transform[3u]) { + status = wuffs_base__make_status(wuffs_webp__error__unsupported_transform_after_color_indexing_transform); + goto exit; + } + self->private_impl.f_seen_transform[v_transform_type] = true; + self->private_impl.f_transform_type[self->private_impl.f_n_transforms] = ((uint8_t)(v_transform_type)); + self->private_impl.f_n_transforms += 1u; + if (v_transform_type < 2u) { + if (self->private_impl.f_n_bits < 3u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + if (self->private_impl.f_n_bits >= 3u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + v_tile_size_log2 = ((self->private_impl.f_bits & 7u) + 2u); + self->private_impl.f_transform_tile_size_log2[v_transform_type] = ((uint8_t)(v_tile_size_log2)); + self->private_impl.f_bits >>= 3u; + self->private_impl.f_n_bits -= 3u; + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + status = wuffs_webp__decoder__decode_color_cache_parameters(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + status = wuffs_webp__decoder__decode_huffman_groups(self, a_src, 1u); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + while (true) { + if ((((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[(v_transform_type + 1u)])) > ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[(v_transform_type + 2u)]))) || (((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[(v_transform_type + 2u)])) > ((uint64_t)(a_workbuf.len)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); + goto exit; + } + { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_2 = wuffs_webp__decoder__decode_pixels(self, + wuffs_base__slice_u8__subslice_ij(a_workbuf, + ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[(v_transform_type + 1u)])), + ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[(v_transform_type + 2u)]))), + a_src, + ((self->private_impl.f_width + ((((uint32_t)(1u)) << v_tile_size_log2) - 1u)) >> v_tile_size_log2), + ((self->private_impl.f_height + ((((uint32_t)(1u)) << v_tile_size_log2) - 1u)) >> v_tile_size_log2), + wuffs_base__utility__empty_slice_u8(), + 0u); + v_status = t_2; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); + } + } else if (v_transform_type == 2u) { + } else { + if (self->private_impl.f_n_bits < 8u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_c8 = t_3; + } + if (self->private_impl.f_n_bits >= 8u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); + goto exit; + } + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; + } + self->private_impl.f_color_indexing_palette_size = ((self->private_impl.f_bits & 255u) + 1u); + self->private_impl.f_bits >>= 8u; + self->private_impl.f_n_bits -= 8u; + if (self->private_impl.f_color_indexing_palette_size <= 2u) { + self->private_impl.f_color_indexing_width = ((self->private_impl.f_width + 7u) / 8u); + self->private_impl.f_transform_tile_size_log2[3u] = 3u; + } else if (self->private_impl.f_color_indexing_palette_size <= 4u) { + self->private_impl.f_color_indexing_width = ((self->private_impl.f_width + 3u) / 4u); + self->private_impl.f_transform_tile_size_log2[3u] = 2u; + } else if (self->private_impl.f_color_indexing_palette_size <= 16u) { + self->private_impl.f_color_indexing_width = ((self->private_impl.f_width + 1u) / 2u); + self->private_impl.f_transform_tile_size_log2[3u] = 1u; + } else { + self->private_impl.f_color_indexing_width = self->private_impl.f_width; + self->private_impl.f_transform_tile_size_log2[3u] = 0u; + } + if (self->private_impl.f_width >= self->private_impl.f_color_indexing_width) { + self->private_impl.f_workbuf_offset_for_color_indexing = (4u * (self->private_impl.f_width - self->private_impl.f_color_indexing_width) * self->private_impl.f_height); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + status = wuffs_webp__decoder__decode_color_cache_parameters(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + status = wuffs_webp__decoder__decode_huffman_groups(self, a_src, 1u); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_wbmp__error__truncated_input); - goto exit; + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + status = wuffs_webp__decoder__decode_pixels(self, + wuffs_base__make_slice_u8(self->private_data.f_palette, (4u * self->private_impl.f_color_indexing_palette_size)), + a_src, + self->private_impl.f_color_indexing_palette_size, + 1u, + wuffs_base__utility__empty_slice_u8(), + 0u); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + wuffs_private_impl__bulk_memset(&self->private_data.f_palette[(4u * self->private_impl.f_color_indexing_palette_size)], (1024u - (4u * self->private_impl.f_color_indexing_palette_size)), 0u); + v_p = wuffs_base__make_slice_u8(self->private_data.f_palette, (4u * self->private_impl.f_color_indexing_palette_size)); + while (((uint64_t)(v_p.len)) >= 8u) { +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_p.ptr[4u] += v_p.ptr[0u]; + v_p.ptr[5u] += v_p.ptr[1u]; + v_p.ptr[6u] += v_p.ptr[2u]; + v_p.ptr[7u] += v_p.ptr[3u]; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + v_p = wuffs_base__slice_u8__subslice_i(v_p, 4u); } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); } ok: - self->private_impl.p_decode_image_config = 0; + self->private_impl.p_decode_transform = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + self->private_impl.p_decode_transform = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_transform.v_transform_type = v_transform_type; + self->private_data.s_decode_transform.v_tile_size_log2 = v_tile_size_log2; goto exit; exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } + return status; } -// -------- func wbmp.decoder.do_decode_image_config +// -------- func webp.decoder.decode_color_cache_parameters WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_wbmp__decoder__do_decode_image_config( - wuffs_wbmp__decoder* self, - wuffs_base__image_config* a_dst, +wuffs_webp__decoder__decode_color_cache_parameters( + wuffs_webp__decoder* self, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c = 0; - uint32_t v_i = 0; - uint32_t v_p = 0; + uint8_t v_c8 = 0; + uint32_t v_use_color_cache = 0; + uint32_t v_color_cache_bits = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -64907,20 +80307,11 @@ wuffs_wbmp__decoder__do_decode_image_config( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_decode_image_config; - if (coro_susp_point) { - v_i = self->private_data.s_do_decode_image_config.v_i; - v_p = self->private_data.s_do_decode_image_config.v_p; - } + uint32_t coro_susp_point = self->private_impl.p_decode_color_cache_parameters; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_call_sequence != 0u) { - status = wuffs_base__make_status(wuffs_base__error__bad_call_sequence); - goto exit; - } - v_i = 0u; - while (v_i < 2u) { + if (self->private_impl.f_n_bits < 1u) { { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { @@ -64928,18 +80319,17 @@ wuffs_wbmp__decoder__do_decode_image_config( goto suspend; } uint8_t t_0 = *iop_a_src++; - v_c = t_0; - } - if (v_c != 0u) { - status = wuffs_base__make_status(wuffs_wbmp__error__bad_header); - goto exit; + v_c8 = t_0; } - v_i += 1u; + self->private_impl.f_bits = ((uint32_t)(v_c8)); + self->private_impl.f_n_bits = 8u; } - v_i = 0u; - while (v_i < 2u) { - v_p = 0u; - while (true) { + v_use_color_cache = (self->private_impl.f_bits & 1u); + self->private_impl.f_bits >>= 1u; + self->private_impl.f_n_bits -= 1u; + self->private_impl.f_color_cache_bits = 0u; + if (v_use_color_cache != 0u) { + if (self->private_impl.f_n_bits < 4u) { { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { @@ -64947,48 +80337,34 @@ wuffs_wbmp__decoder__do_decode_image_config( goto suspend; } uint8_t t_1 = *iop_a_src++; - v_c = t_1; + v_c8 = t_1; } - v_p |= ((uint32_t)(((uint8_t)(v_c & 127u)))); - if (((uint8_t)(v_c >> 7u)) == 0u) { - break; - } else if (v_p > 131071u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_image_dimension); + if (self->private_impl.f_n_bits >= 4u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); goto exit; } - v_p <<= 7u; + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; } - if (v_i == 0u) { - self->private_impl.f_width = v_p; - } else { - self->private_impl.f_height = v_p; + v_color_cache_bits = (self->private_impl.f_bits & 15u); + self->private_impl.f_bits >>= 4u; + self->private_impl.f_n_bits -= 4u; + if ((v_color_cache_bits < 1u) || (11u < v_color_cache_bits)) { + status = wuffs_base__make_status(wuffs_webp__error__bad_color_cache); + goto exit; } - v_i += 1u; - } - self->private_impl.f_frame_config_io_position = wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src))); - if (a_dst != NULL) { - wuffs_base__image_config__set( - a_dst, - 2198077448u, - 0u, - self->private_impl.f_width, - self->private_impl.f_height, - self->private_impl.f_frame_config_io_position, - true); + self->private_impl.f_color_cache_bits = v_color_cache_bits; } - self->private_impl.f_call_sequence = 32u; goto ok; ok: - self->private_impl.p_do_decode_image_config = 0; + self->private_impl.p_decode_color_cache_parameters = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_decode_image_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_do_decode_image_config.v_i = v_i; - self->private_data.s_do_decode_image_config.v_p = v_p; + self->private_impl.p_decode_color_cache_parameters = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: @@ -64999,81 +80375,25 @@ wuffs_wbmp__decoder__do_decode_image_config( return status; } -// -------- func wbmp.decoder.decode_frame_config +// -------- func webp.decoder.decode_hg_table WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__decode_frame_config( - wuffs_wbmp__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 2)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; +static wuffs_base__status +wuffs_webp__decoder__decode_hg_table( + wuffs_webp__decoder* self, + wuffs_base__io_buffer* a_src, + uint32_t a_width, + wuffs_base__slice_u8 a_workbuf) { wuffs_base__status status = wuffs_base__make_status(NULL); wuffs_base__status v_status = wuffs_base__make_status(NULL); - - uint32_t coro_susp_point = self->private_impl.p_decode_frame_config; - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - while (true) { - { - wuffs_base__status t_0 = wuffs_wbmp__decoder__do_decode_frame_config(self, a_dst, a_src); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_wbmp__error__truncated_input); - goto exit; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); - } - - ok: - self->private_impl.p_decode_frame_config = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 2 : 0; - - goto exit; - exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - } - return status; -} - -// -------- func wbmp.decoder.do_decode_frame_config - -WUFFS_BASE__GENERATED_C_CODE -static wuffs_base__status -wuffs_wbmp__decoder__do_decode_frame_config( - wuffs_wbmp__decoder* self, - wuffs_base__frame_config* a_dst, - wuffs_base__io_buffer* a_src) { - wuffs_base__status status = wuffs_base__make_status(NULL); + uint8_t v_c8 = 0; + uint32_t v_use_hg_table = 0; + uint32_t v_tile_size_log2 = 0; + wuffs_base__slice_u8 v_hg_pixels = {0}; + uint64_t v_n = 0; + wuffs_base__slice_u8 v_p = {0}; + uint32_t v_hg_plus_1 = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -65086,62 +80406,155 @@ wuffs_wbmp__decoder__do_decode_frame_config( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame_config; + uint32_t coro_susp_point = self->private_impl.p_decode_hg_table; + if (coro_susp_point) { + v_tile_size_log2 = self->private_data.s_decode_hg_table.v_tile_size_log2; + } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if (self->private_impl.f_call_sequence == 32u) { - } else if (self->private_impl.f_call_sequence < 32u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + if (self->private_impl.f_n_bits < 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_wbmp__decoder__do_decode_image_config(self, NULL, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + self->private_impl.f_bits = ((uint32_t)(v_c8)); + self->private_impl.f_n_bits = 8u; + } + v_use_hg_table = (self->private_impl.f_bits & 1u); + self->private_impl.f_bits >>= 1u; + self->private_impl.f_n_bits -= 1u; + if (v_use_hg_table == 0u) { + self->private_impl.f_overall_n_huffman_groups = 1u; + self->private_impl.f_overall_tile_size_log2 = 0u; + if ((((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u])) > ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u]))) || (((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u])) > ((uint64_t)(a_workbuf.len)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); + goto exit; } - if (status.repr) { - goto suspend; + v_hg_pixels = wuffs_base__slice_u8__subslice_ij(a_workbuf, + ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u])), + ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u]))); + if (((uint64_t)(v_hg_pixels.len)) >= 4u) { + v_hg_pixels.ptr[0u] = 0u; + v_hg_pixels.ptr[1u] = 0u; + v_hg_pixels.ptr[2u] = 0u; + v_hg_pixels.ptr[3u] = 0u; } - } else if (self->private_impl.f_call_sequence == 40u) { - if (self->private_impl.f_frame_config_io_position != wuffs_base__u64__sat_add((a_src ? a_src->meta.pos : 0), ((uint64_t)(iop_a_src - io0_a_src)))) { - status = wuffs_base__make_status(wuffs_base__error__bad_restart); + status = wuffs_base__make_status(NULL); + goto ok; + } + if (self->private_impl.f_n_bits < 3u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + if (self->private_impl.f_n_bits >= 3u) { + status = wuffs_base__make_status(wuffs_webp__error__internal_error_inconsistent_n_bits); goto exit; } - } else if (self->private_impl.f_call_sequence == 64u) { - self->private_impl.f_call_sequence = 96u; - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } else { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; + self->private_impl.f_bits |= (((uint32_t)(v_c8)) << self->private_impl.f_n_bits); + self->private_impl.f_n_bits += 8u; } - if (a_dst != NULL) { - wuffs_base__frame_config__set( - a_dst, - wuffs_base__utility__make_rect_ie_u32( - 0u, - 0u, - self->private_impl.f_width, - self->private_impl.f_height), - ((wuffs_base__flicks)(0u)), - 0u, - self->private_impl.f_frame_config_io_position, - 0u, - true, - false, - 4278190080u); + v_tile_size_log2 = ((self->private_impl.f_bits & 7u) + 2u); + self->private_impl.f_bits >>= 3u; + self->private_impl.f_n_bits -= 3u; + self->private_impl.f_overall_tile_size_log2 = v_tile_size_log2; + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + status = wuffs_webp__decoder__decode_color_cache_parameters(self, a_src); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + status = wuffs_webp__decoder__decode_huffman_groups(self, a_src, 1u); + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + if (status.repr) { + goto suspend; + } + while (true) { + if ((((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u])) > ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u]))) || (((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u])) > ((uint64_t)(a_workbuf.len)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); + goto exit; + } + { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_2 = wuffs_webp__decoder__decode_pixels(self, + wuffs_base__slice_u8__subslice_ij(a_workbuf, + ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u])), + ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u]))), + a_src, + ((a_width + ((((uint32_t)(1u)) << v_tile_size_log2) - 1u)) >> v_tile_size_log2), + ((self->private_impl.f_height + ((((uint32_t)(1u)) << v_tile_size_log2) - 1u)) >> v_tile_size_log2), + wuffs_base__utility__empty_slice_u8(), + 0u); + v_status = t_2; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); + } + self->private_impl.f_overall_n_huffman_groups = 1u; + if ((((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u])) > ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u]))) || (((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u])) > ((uint64_t)(a_workbuf.len)))) { + status = wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); + goto exit; + } + v_hg_pixels = wuffs_base__slice_u8__subslice_ij(a_workbuf, + ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[0u])), + ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[1u]))); + v_n = ((uint64_t)((((a_width + ((((uint32_t)(1u)) << v_tile_size_log2) - 1u)) >> v_tile_size_log2) * ((self->private_impl.f_height + ((((uint32_t)(1u)) << v_tile_size_log2) - 1u)) >> v_tile_size_log2) * 4u))); + if (v_n > ((uint64_t)(v_hg_pixels.len))) { + status = wuffs_base__make_status(wuffs_base__error__bad_workbuf_length); + goto exit; + } + v_p = wuffs_base__slice_u8__subslice_j(v_hg_pixels, v_n); + while (((uint64_t)(v_p.len)) >= 4u) { + if (v_p.ptr[2u] != 0u) { + status = wuffs_base__make_status(wuffs_webp__error__unsupported_number_of_huffman_groups); + goto exit; + } + v_hg_plus_1 = (((uint32_t)(v_p.ptr[1u])) + 1u); + if (self->private_impl.f_overall_n_huffman_groups < v_hg_plus_1) { + self->private_impl.f_overall_n_huffman_groups = v_hg_plus_1; + } + v_p = wuffs_base__slice_u8__subslice_i(v_p, 4u); } - self->private_impl.f_call_sequence = 64u; ok: - self->private_impl.p_do_decode_frame_config = 0; + self->private_impl.p_decode_hg_table = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_decode_frame_config = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_decode_hg_table = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_hg_table.v_tile_size_log2 = v_tile_size_log2; goto exit; exit: @@ -65152,233 +80565,117 @@ wuffs_wbmp__decoder__do_decode_frame_config( return status; } -// -------- func wbmp.decoder.decode_frame +// -------- func webp.decoder.decode_pixels WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__decode_frame( - wuffs_wbmp__decoder* self, - wuffs_base__pixel_buffer* a_dst, +static wuffs_base__status +wuffs_webp__decoder__decode_pixels( + wuffs_webp__decoder* self, + wuffs_base__slice_u8 a_dst, wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 3)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); - } - self->private_impl.active_coroutine = 0; + uint32_t a_width, + uint32_t a_height, + wuffs_base__slice_u8 a_tile_data, + uint32_t a_tile_size_log2) { wuffs_base__status status = wuffs_base__make_status(NULL); - wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint32_t v_i = 0; + uint32_t v_n = 0; - uint32_t coro_susp_point = self->private_impl.p_decode_frame; + uint32_t coro_susp_point = self->private_impl.p_decode_pixels; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - while (true) { - { - wuffs_base__status t_0 = wuffs_wbmp__decoder__do_decode_frame(self, - a_dst, - a_src, - a_blend, - a_workbuf, - a_opts); - v_status = t_0; - } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_wbmp__error__truncated_input); - goto exit; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + v_i = 0u; + v_n = (((uint32_t)(1u)) << self->private_impl.f_color_cache_bits); + while (v_i < v_n) { + self->private_data.f_color_cache[v_i] = 0u; + v_i += 1u; + } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + status = wuffs_webp__decoder__decode_pixels_slow(self, + a_dst, + a_src, + a_width, + a_height, + a_tile_data, + a_tile_size_log2); + if (status.repr) { + goto suspend; } + goto ok; ok: - self->private_impl.p_decode_frame = 0; + self->private_impl.p_decode_pixels = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 3 : 0; + self->private_impl.p_decode_pixels = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - } return status; } -// -------- func wbmp.decoder.do_decode_frame +// -------- func webp.decoder.swizzle WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_wbmp__decoder__do_decode_frame( - wuffs_wbmp__decoder* self, +wuffs_webp__decoder__swizzle( + wuffs_webp__decoder* self, wuffs_base__pixel_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__pixel_blend a_blend, - wuffs_base__slice_u8 a_workbuf, - wuffs_base__decode_frame_options* a_opts) { - wuffs_base__status status = wuffs_base__make_status(NULL); - + wuffs_base__slice_u8 a_src, + wuffs_base__pixel_blend a_blend) { wuffs_base__status v_status = wuffs_base__make_status(NULL); wuffs_base__pixel_format v_dst_pixfmt = {0}; uint32_t v_dst_bits_per_pixel = 0; - uint64_t v_dst_bytes_per_pixel = 0; - uint64_t v_dst_x_in_bytes = 0; - uint32_t v_dst_x = 0; - uint32_t v_dst_y = 0; + uint32_t v_dst_bytes_per_pixel = 0; + uint64_t v_dst_bytes_per_row = 0; + wuffs_base__slice_u8 v_dst_palette = {0}; wuffs_base__table_u8 v_tab = {0}; + uint64_t v_src_bytes_per_row = 0; wuffs_base__slice_u8 v_dst = {0}; - uint8_t v_src[1] = {0}; - uint8_t v_c = 0; + uint32_t v_y = 0; - const uint8_t* iop_a_src = NULL; - const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_src && a_src->data.ptr) { - io0_a_src = a_src->data.ptr; - io1_a_src = io0_a_src + a_src->meta.ri; - iop_a_src = io1_a_src; - io2_a_src = io0_a_src + a_src->meta.wi; + v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, + wuffs_base__pixel_buffer__pixel_format(a_dst), + wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_palette, 1024)), + wuffs_base__utility__make_pixel_format(self->private_impl.f_pixfmt), + wuffs_base__utility__empty_slice_u8(), + a_blend); + if ( ! wuffs_base__status__is_ok(&v_status)) { + return wuffs_private_impl__status__ensure_not_a_suspension(v_status); } - - uint32_t coro_susp_point = self->private_impl.p_do_decode_frame; - if (coro_susp_point) { - v_dst_bytes_per_pixel = self->private_data.s_do_decode_frame.v_dst_bytes_per_pixel; - v_dst_x = self->private_data.s_do_decode_frame.v_dst_x; - v_dst_y = self->private_data.s_do_decode_frame.v_dst_y; - memcpy(v_src, self->private_data.s_do_decode_frame.v_src, sizeof(v_src)); - v_c = self->private_data.s_do_decode_frame.v_c; + v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); + v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); + if ((v_dst_bits_per_pixel & 7u) != 0u) { + return wuffs_base__make_status(wuffs_base__error__unsupported_option); } - switch (coro_susp_point) { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - - if (self->private_impl.f_call_sequence == 64u) { - } else if (self->private_impl.f_call_sequence < 64u) { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - status = wuffs_wbmp__decoder__do_decode_frame_config(self, NULL, a_src); - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - if (status.repr) { - goto suspend; - } - } else { - status = wuffs_base__make_status(wuffs_base__note__end_of_data); - goto ok; - } - v_status = wuffs_base__pixel_swizzler__prepare(&self->private_impl.f_swizzler, - wuffs_base__pixel_buffer__pixel_format(a_dst), - wuffs_base__pixel_buffer__palette(a_dst), - wuffs_base__utility__make_pixel_format(536870920u), - wuffs_base__utility__empty_slice_u8(), - a_blend); - if ( ! wuffs_base__status__is_ok(&v_status)) { - status = v_status; - if (wuffs_base__status__is_error(&status)) { - goto exit; - } else if (wuffs_base__status__is_suspension(&status)) { - status = wuffs_base__make_status(wuffs_base__error__cannot_return_a_suspension); - goto exit; - } - goto ok; - } - v_dst_pixfmt = wuffs_base__pixel_buffer__pixel_format(a_dst); - v_dst_bits_per_pixel = wuffs_base__pixel_format__bits_per_pixel(&v_dst_pixfmt); - if ((v_dst_bits_per_pixel & 7u) != 0u) { - status = wuffs_base__make_status(wuffs_base__error__unsupported_option); - goto exit; - } - v_dst_bytes_per_pixel = ((uint64_t)((v_dst_bits_per_pixel / 8u))); - if (self->private_impl.f_width > 0u) { - v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); - while (v_dst_y < self->private_impl.f_height) { - v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, v_dst_y); - v_dst_x = 0u; - while (v_dst_x < self->private_impl.f_width) { - if ((v_dst_x & 7u) == 0u) { - while (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); - v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, v_dst_y); - v_dst_x_in_bytes = (((uint64_t)(v_dst_x)) * v_dst_bytes_per_pixel); - if (v_dst_x_in_bytes <= ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_x_in_bytes); - } - } - v_c = wuffs_base__peek_u8be__no_bounds_check(iop_a_src); - iop_a_src += 1u; - } - if (((uint8_t)(v_c & 128u)) == 0u) { - v_src[0u] = 0u; - } else { - v_src[0u] = 255u; - } - v_c = ((uint8_t)((((uint32_t)(v_c)) << 1u))); - wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, wuffs_base__utility__empty_slice_u8(), wuffs_base__make_slice_u8(v_src, 1)); - if (v_dst_bytes_per_pixel <= ((uint64_t)(v_dst.len))) { - v_dst = wuffs_base__slice_u8__subslice_i(v_dst, v_dst_bytes_per_pixel); - } - v_dst_x += 1u; - } - v_dst_y += 1u; - } + v_dst_bytes_per_pixel = (v_dst_bits_per_pixel / 8u); + v_dst_bytes_per_row = ((uint64_t)((self->private_impl.f_width * v_dst_bytes_per_pixel))); + v_dst_palette = wuffs_base__pixel_buffer__palette_or_else(a_dst, wuffs_base__make_slice_u8(self->private_data.f_palette, 1024)); + v_tab = wuffs_base__pixel_buffer__plane(a_dst, 0u); + v_src_bytes_per_row = ((uint64_t)((self->private_impl.f_width * 4u))); + while (v_src_bytes_per_row <= ((uint64_t)(a_src.len))) { + v_dst = wuffs_private_impl__table_u8__row_u32(v_tab, v_y); + if (v_dst_bytes_per_row < ((uint64_t)(v_dst.len))) { + v_dst = wuffs_base__slice_u8__subslice_j(v_dst, v_dst_bytes_per_row); } - self->private_impl.f_call_sequence = 96u; - - ok: - self->private_impl.p_do_decode_frame = 0; - goto exit; - } - - goto suspend; - suspend: - self->private_impl.p_do_decode_frame = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_do_decode_frame.v_dst_bytes_per_pixel = v_dst_bytes_per_pixel; - self->private_data.s_do_decode_frame.v_dst_x = v_dst_x; - self->private_data.s_do_decode_frame.v_dst_y = v_dst_y; - memcpy(self->private_data.s_do_decode_frame.v_src, v_src, sizeof(v_src)); - self->private_data.s_do_decode_frame.v_c = v_c; - - goto exit; - exit: - if (a_src && a_src->data.ptr) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + wuffs_base__pixel_swizzler__swizzle_interleaved_from_slice(&self->private_impl.f_swizzler, v_dst, v_dst_palette, wuffs_base__slice_u8__subslice_j(a_src, v_src_bytes_per_row)); + a_src = wuffs_base__slice_u8__subslice_i(a_src, v_src_bytes_per_row); + v_y += 1u; } - - return status; + return wuffs_base__make_status(NULL); } -// -------- func wbmp.decoder.frame_dirty_rect +// -------- func webp.decoder.frame_dirty_rect WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__rect_ie_u32 -wuffs_wbmp__decoder__frame_dirty_rect( - const wuffs_wbmp__decoder* self) { +wuffs_webp__decoder__frame_dirty_rect( + const wuffs_webp__decoder* self) { if (!self) { return wuffs_base__utility__empty_rect_ie_u32(); } @@ -65394,12 +80691,12 @@ wuffs_wbmp__decoder__frame_dirty_rect( self->private_impl.f_height); } -// -------- func wbmp.decoder.num_animation_loops +// -------- func webp.decoder.num_animation_loops WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint32_t -wuffs_wbmp__decoder__num_animation_loops( - const wuffs_wbmp__decoder* self) { +wuffs_webp__decoder__num_animation_loops( + const wuffs_webp__decoder* self) { if (!self) { return 0; } @@ -65411,12 +80708,12 @@ wuffs_wbmp__decoder__num_animation_loops( return 0u; } -// -------- func wbmp.decoder.num_decoded_frame_configs +// -------- func webp.decoder.num_decoded_frame_configs WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_wbmp__decoder__num_decoded_frame_configs( - const wuffs_wbmp__decoder* self) { +wuffs_webp__decoder__num_decoded_frame_configs( + const wuffs_webp__decoder* self) { if (!self) { return 0; } @@ -65431,12 +80728,12 @@ wuffs_wbmp__decoder__num_decoded_frame_configs( return 0u; } -// -------- func wbmp.decoder.num_decoded_frames +// -------- func webp.decoder.num_decoded_frames WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_wbmp__decoder__num_decoded_frames( - const wuffs_wbmp__decoder* self) { +wuffs_webp__decoder__num_decoded_frames( + const wuffs_webp__decoder* self) { if (!self) { return 0; } @@ -65451,12 +80748,12 @@ wuffs_wbmp__decoder__num_decoded_frames( return 0u; } -// -------- func wbmp.decoder.restart_frame +// -------- func webp.decoder.restart_frame WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__restart_frame( - wuffs_wbmp__decoder* self, +wuffs_webp__decoder__restart_frame( + wuffs_webp__decoder* self, uint64_t a_index, uint64_t a_io_position) { if (!self) { @@ -65472,31 +80769,30 @@ wuffs_wbmp__decoder__restart_frame( if (self->private_impl.f_call_sequence < 32u) { return wuffs_base__make_status(wuffs_base__error__bad_call_sequence); } - if (a_index != 0u) { + if ((a_index != 0u) || (a_io_position != self->private_impl.f_frame_config_io_position)) { return wuffs_base__make_status(wuffs_base__error__bad_argument); } self->private_impl.f_call_sequence = 40u; - self->private_impl.f_frame_config_io_position = a_io_position; return wuffs_base__make_status(NULL); } -// -------- func wbmp.decoder.set_report_metadata +// -------- func webp.decoder.set_report_metadata WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__empty_struct -wuffs_wbmp__decoder__set_report_metadata( - wuffs_wbmp__decoder* self, +wuffs_webp__decoder__set_report_metadata( + wuffs_webp__decoder* self, uint32_t a_fourcc, bool a_report) { return wuffs_base__make_empty_struct(); } -// -------- func wbmp.decoder.tell_me_more +// -------- func webp.decoder.tell_me_more WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_wbmp__decoder__tell_me_more( - wuffs_wbmp__decoder* self, +wuffs_webp__decoder__tell_me_more( + wuffs_webp__decoder* self, wuffs_base__io_buffer* a_dst, wuffs_base__more_information* a_minfo, wuffs_base__io_buffer* a_src) { @@ -65534,12 +80830,12 @@ wuffs_wbmp__decoder__tell_me_more( return status; } -// -------- func wbmp.decoder.workbuf_len +// -------- func webp.decoder.workbuf_len WUFFS_BASE__GENERATED_C_CODE WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_wbmp__decoder__workbuf_len( - const wuffs_wbmp__decoder* self) { +wuffs_webp__decoder__workbuf_len( + const wuffs_webp__decoder* self) { if (!self) { return wuffs_base__utility__empty_range_ii_u64(); } @@ -65548,10 +80844,10 @@ wuffs_wbmp__decoder__workbuf_len( return wuffs_base__utility__empty_range_ii_u64(); } - return wuffs_base__utility__make_range_ii_u64(0u, 0u); + return wuffs_base__utility__make_range_ii_u64(((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[3u])), ((uint64_t)(self->private_impl.f_workbuf_offset_for_transform[3u]))); } -#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WBMP) +#endif // !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WEBP) #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__XXHASH32) @@ -65655,7 +80951,7 @@ wuffs_xxhash32__hasher__initialize( wuffs_xxhash32__hasher* wuffs_xxhash32__hasher__alloc(void) { wuffs_xxhash32__hasher* x = - (wuffs_xxhash32__hasher*)(calloc(sizeof(wuffs_xxhash32__hasher), 1)); + (wuffs_xxhash32__hasher*)(calloc(1, sizeof(wuffs_xxhash32__hasher))); if (!x) { return NULL; } @@ -65840,7 +81136,7 @@ wuffs_xxhash32__hasher__up( wuffs_base__slice_u8 i_slice_p = a_x; v_p.ptr = i_slice_p.ptr; v_p.len = 16; - uint8_t* i_end0_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 16) * 16); + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 16) * 16)); while (v_p.ptr < i_end0_p) { v_buf_u32 = (((uint32_t)(v_p.ptr[0u])) | (((uint32_t)(v_p.ptr[1u])) << 8u) | @@ -65873,7 +81169,7 @@ wuffs_xxhash32__hasher__up( v_p.ptr += 16; } v_p.len = 1; - uint8_t* i_end1_p = i_slice_p.ptr + i_slice_p.len; + const uint8_t* i_end1_p = wuffs_private_impl__ptr_u8_plus_len(i_slice_p.ptr, i_slice_p.len); while (v_p.ptr < i_end1_p) { self->private_impl.f_buf_data[v_buf_len] = v_p.ptr[0u]; v_buf_len = ((v_buf_len + 1u) & 15u); @@ -66068,7 +81364,7 @@ wuffs_xxhash64__hasher__initialize( wuffs_xxhash64__hasher* wuffs_xxhash64__hasher__alloc(void) { wuffs_xxhash64__hasher* x = - (wuffs_xxhash64__hasher*)(calloc(sizeof(wuffs_xxhash64__hasher), 1)); + (wuffs_xxhash64__hasher*)(calloc(1, sizeof(wuffs_xxhash64__hasher))); if (!x) { return NULL; } @@ -66252,7 +81548,7 @@ wuffs_xxhash64__hasher__up( wuffs_base__slice_u8 i_slice_p = a_x; v_p.ptr = i_slice_p.ptr; v_p.len = 32; - uint8_t* i_end0_p = v_p.ptr + (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 32) * 32); + const uint8_t* i_end0_p = wuffs_private_impl__ptr_u8_plus_len(v_p.ptr, (((i_slice_p.len - (size_t)(v_p.ptr - i_slice_p.ptr)) / 32) * 32)); while (v_p.ptr < i_end0_p) { v_buf_u64 = (((uint64_t)(v_p.ptr[0u])) | (((uint64_t)(v_p.ptr[1u])) << 8u) | @@ -66301,7 +81597,7 @@ wuffs_xxhash64__hasher__up( v_p.ptr += 32; } v_p.len = 1; - uint8_t* i_end1_p = i_slice_p.ptr + i_slice_p.len; + const uint8_t* i_end1_p = wuffs_private_impl__ptr_u8_plus_len(i_slice_p.ptr, i_slice_p.len); while (v_p.ptr < i_end1_p) { self->private_impl.f_buf_data[v_buf_len] = v_p.ptr[0u]; v_buf_len = ((v_buf_len + 1u) & 31u); @@ -66456,22 +81752,128 @@ wuffs_xxhash64__hasher__checksum_u64( // ---------------- Status Codes Implementations +const char wuffs_xz__error__bad_bcj_offset[] = "#xz: bad BCJ offset"; const char wuffs_xz__error__bad_block_header[] = "#xz: bad block header"; const char wuffs_xz__error__bad_checksum[] = "#xz: bad checksum"; +const char wuffs_xz__error__bad_filter[] = "#xz: bad filter"; +const char wuffs_xz__error__bad_footer[] = "#xz: bad footer"; const char wuffs_xz__error__bad_header[] = "#xz: bad header"; +const char wuffs_xz__error__bad_header_concatenated_stream[] = "#xz: bad header (concatenated stream)"; +const char wuffs_xz__error__bad_index[] = "#xz: bad index"; const char wuffs_xz__error__bad_padding[] = "#xz: bad padding"; const char wuffs_xz__error__truncated_input[] = "#xz: truncated input"; const char wuffs_xz__error__unsupported_checksum_algorithm[] = "#xz: unsupported checksum algorithm"; const char wuffs_xz__error__unsupported_filter[] = "#xz: unsupported filter"; -const char wuffs_xz__error__unsupported_number_of_filters[] = "#xz: unsupported number of filters"; -const char wuffs_xz__error__todo[] = "#xz: TODO"; +const char wuffs_xz__error__unsupported_filter_combination[] = "#xz: unsupported filter combination"; +const char wuffs_xz__error__internal_error_inconsistent_bcj_filter_state[] = "#xz: internal error: inconsistent BCJ filter state"; // ---------------- Private Consts +static const bool +WUFFS_XZ__FILTER_04_X86_MASK_TO_ALLOWED_STATUS[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 1u, 1u, 1u, 0u, 1u, 0u, 0u, 0u, +}; + +static const uint8_t +WUFFS_XZ__FILTER_04_X86_MASK_TO_BIT_NUM[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 1u, 2u, 2u, 3u, 3u, 3u, 3u, +}; + +static const uint32_t +WUFFS_XZ__FILTER_04_X86_MASK_TO_XOR_OPERAND[8] WUFFS_BASE__POTENTIALLY_UNUSED = { + 4294967295u, 16777215u, 65535u, 65535u, 255u, 255u, 255u, 255u, +}; + +static const uint8_t +WUFFS_XZ__FILTER_06_IA64_BRANCH_TABLE[32] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, + 4u, 4u, 6u, 6u, 0u, 0u, 7u, 7u, + 4u, 4u, 0u, 0u, 4u, 4u, 0u, 0u, +}; + +#define WUFFS_XZ__QUIRKS_BASE 1963655168u + +static const uint8_t +WUFFS_XZ__CHECKSUM_LENGTH[4] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 4u, 8u, 32u, +}; + +static const uint8_t +WUFFS_XZ__ZEROES[3] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 0u, 0u, +}; + +static const uint8_t +WUFFS_XZ__BCJ_OFFSET_ALIGNMENT[12] WUFFS_BASE__POTENTIALLY_UNUSED = { + 0u, 0u, 0u, 0u, 1u, 4u, 16u, 4u, + 2u, 4u, 4u, 2u, +}; + // ---------------- Private Initializer Prototypes // ---------------- Private Function Prototypes +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_non_final_filters( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice); + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_non_final_filters__choosy_default( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice); + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_04_x86( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice); + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_05_powerpc( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice); + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_06_ia64( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice); + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_07_arm( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice); + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_08_armthumb( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice); + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_09_sparc( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice); + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_0a_arm64( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice); + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_0b_riscv( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice); + WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status wuffs_xz__decoder__do_transform_io( @@ -66492,6 +81894,18 @@ wuffs_xz__decoder__decode_block_header_sans_padding( wuffs_xz__decoder* self, wuffs_base__io_buffer* a_src); +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_xz__decoder__verify_index( + wuffs_xz__decoder* self, + wuffs_base__io_buffer* a_src); + +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_xz__decoder__verify_footer( + wuffs_xz__decoder* self, + wuffs_base__io_buffer* a_src); + // ---------------- VTables const wuffs_base__io_transformer__func_ptrs @@ -66509,287 +81923,1702 @@ wuffs_xz__decoder__func_ptrs_for__wuffs_base__io_transformer = { (wuffs_base__range_ii_u64(*)(const void*))(&wuffs_xz__decoder__workbuf_len), }; -// ---------------- Initializer Implementations +// ---------------- Initializer Implementations + +wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT +wuffs_xz__decoder__initialize( + wuffs_xz__decoder* self, + size_t sizeof_star_self, + uint64_t wuffs_version, + uint32_t options){ + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (sizeof(*self) != sizeof_star_self) { + return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + } + if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || + (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { + return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + } + + if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { + // The whole point of this if-check is to detect an uninitialized *self. + // We disable the warning on GCC. Clang-5.0 does not have this warning. +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + if (self->private_impl.magic != 0) { + return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); + } +#if !defined(__clang__) && defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + } else { + if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { + memset(self, 0, sizeof(*self)); + options |= WUFFS_INITIALIZE__ALREADY_ZEROED; + } else { + memset(&(self->private_impl), 0, sizeof(self->private_impl)); + } + } + + self->private_impl.choosy_apply_non_final_filters = &wuffs_xz__decoder__apply_non_final_filters__choosy_default; + + { + wuffs_base__status z = wuffs_crc32__ieee_hasher__initialize( + &self->private_data.f_crc32, sizeof(self->private_data.f_crc32), WUFFS_VERSION, options); + if (z.repr) { + return z; + } + } + { + wuffs_base__status z = wuffs_crc64__ecma_hasher__initialize( + &self->private_data.f_crc64, sizeof(self->private_data.f_crc64), WUFFS_VERSION, options); + if (z.repr) { + return z; + } + } + { + wuffs_base__status z = wuffs_sha256__hasher__initialize( + &self->private_data.f_sha256, sizeof(self->private_data.f_sha256), WUFFS_VERSION, options); + if (z.repr) { + return z; + } + } + { + wuffs_base__status z = wuffs_lzma__decoder__initialize( + &self->private_data.f_lzma, sizeof(self->private_data.f_lzma), WUFFS_VERSION, options); + if (z.repr) { + return z; + } + } + self->private_impl.magic = WUFFS_BASE__MAGIC; + self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = + wuffs_base__io_transformer__vtable_name; + self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = + (const void*)(&wuffs_xz__decoder__func_ptrs_for__wuffs_base__io_transformer); + return wuffs_base__make_status(NULL); +} + +wuffs_xz__decoder* +wuffs_xz__decoder__alloc(void) { + wuffs_xz__decoder* x = + (wuffs_xz__decoder*)(calloc(1, sizeof(wuffs_xz__decoder))); + if (!x) { + return NULL; + } + if (wuffs_xz__decoder__initialize( + x, sizeof(wuffs_xz__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { + free(x); + return NULL; + } + return x; +} + +size_t +sizeof__wuffs_xz__decoder(void) { + return sizeof(wuffs_xz__decoder); +} + +// ---------------- Function Implementations + +// -------- func xz.decoder.apply_non_final_filters + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_non_final_filters( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice) { + return (*self->private_impl.choosy_apply_non_final_filters)(self, a_dst_slice); +} + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_non_final_filters__choosy_default( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice) { + uint32_t v_f = 0; + uint64_t v_i = 0; + uint32_t v_filter_id = 0; + uint32_t v_delta_dist = 0; + uint32_t v_delta_pos = 0; + uint8_t v_c8 = 0; + + if (self->private_impl.f_num_non_final_filters <= 0u) { + return 0u; + } + v_f = (self->private_impl.f_num_non_final_filters - 1u); + while (true) { + v_filter_id = (self->private_impl.f_filters[v_f] & 127u); + if (v_filter_id == 3u) { + v_delta_dist = (((self->private_impl.f_filters[v_f] >> 8u) & 255u) + 1u); + v_delta_pos = (self->private_impl.f_filters[v_f] >> 24u); + v_i = 0u; + while (v_i < ((uint64_t)(a_dst_slice.len))) { + v_c8 = a_dst_slice.ptr[v_i]; +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + v_c8 += self->private_data.f_filter_data[v_f][(((uint32_t)(v_delta_dist + v_delta_pos)) & 255u)]; +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif + self->private_data.f_filter_data[v_f][(v_delta_pos & 255u)] = v_c8; + v_delta_pos -= 1u; + a_dst_slice.ptr[v_i] = v_c8; + v_i += 1u; + } + self->private_impl.f_filters[v_f] &= 65535u; + self->private_impl.f_filters[v_f] |= ((uint32_t)(v_delta_pos << 24u)); + } + if (v_f <= 0u) { + break; + } + v_f -= 1u; + } + return 0u; +} + +// -------- func xz.decoder.apply_filter_04_x86 + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_04_x86( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice) { + wuffs_base__slice_u8 v_s = {0}; + uint32_t v_p = 0; + uint64_t v_i = 0; + uint64_t v_prev_pos = 0; + uint32_t v_prev_mask = 0; + uint8_t v_c8 = 0; + uint32_t v_src = 0; + uint32_t v_dst = 0; + uint32_t v_bit_num = 0; + + v_s = a_dst_slice; + v_p = ((uint32_t)(self->private_impl.f_bcj_pos + 5u)); + v_prev_pos = 18446744073709551615u; + v_prev_mask = self->private_impl.f_bcj_x86_prev_mask; + while (((uint64_t)(v_s.len)) >= 5u) { + if (((uint8_t)(v_s.ptr[0u] & 254u)) != 232u) { + v_i += 1u; + v_p += 1u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 1u); + continue; + } + v_prev_pos = ((uint64_t)(v_i - v_prev_pos)); + if (v_prev_pos > 3u) { + v_prev_mask = 0u; + } else if (v_prev_pos > 0u) { + v_prev_mask = (((uint32_t)(v_prev_mask << (v_prev_pos - 1u))) & 7u); + if (v_prev_mask != 0u) { + v_c8 = v_s.ptr[((uint8_t)(4u - WUFFS_XZ__FILTER_04_X86_MASK_TO_BIT_NUM[(v_prev_mask & 7u)]))]; + if ( ! WUFFS_XZ__FILTER_04_X86_MASK_TO_ALLOWED_STATUS[(v_prev_mask & 7u)] || (v_c8 == 0u) || (v_c8 == 255u)) { + v_prev_pos = v_i; + v_prev_mask = (((uint32_t)(v_prev_mask << 1u)) | 1u); + v_i += 1u; + v_p += 1u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 1u); + continue; + } + } + } + v_prev_pos = v_i; + v_c8 = v_s.ptr[4u]; + if ((v_c8 != 0u) && (v_c8 != 255u)) { + v_prev_mask = (((uint32_t)(v_prev_mask << 1u)) | 1u); + v_i += 1u; + v_p += 1u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 1u); + continue; + } + v_src = ((((uint32_t)(v_s.ptr[1u])) << 0u) | + (((uint32_t)(v_s.ptr[2u])) << 8u) | + (((uint32_t)(v_s.ptr[3u])) << 16u) | + (((uint32_t)(v_s.ptr[4u])) << 24u)); + while (true) { + v_dst = ((uint32_t)(v_src - v_p)); + if (v_prev_mask == 0u) { + break; + } + v_bit_num = ((uint32_t)(WUFFS_XZ__FILTER_04_X86_MASK_TO_BIT_NUM[(v_prev_mask & 7u)])); + v_c8 = ((uint8_t)((v_dst >> (24u - (v_bit_num * 8u))))); + if ((v_c8 != 0u) && (v_c8 != 255u)) { + break; + } + v_src = (v_dst ^ WUFFS_XZ__FILTER_04_X86_MASK_TO_XOR_OPERAND[(v_prev_mask & 7u)]); + } + v_dst &= 33554431u; + v_dst |= ((uint32_t)(0u - (v_dst & 16777216u))); + v_s.ptr[1u] = ((uint8_t)((v_dst >> 0u))); + v_s.ptr[2u] = ((uint8_t)((v_dst >> 8u))); + v_s.ptr[3u] = ((uint8_t)((v_dst >> 16u))); + v_s.ptr[4u] = ((uint8_t)((v_dst >> 24u))); + v_i += 5u; + v_p += 5u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 5u); + } + v_prev_pos = ((uint64_t)(v_i - v_prev_pos)); + if (v_prev_pos > 3u) { + self->private_impl.f_bcj_x86_prev_mask = 0u; + } else if (v_prev_pos > 0u) { + self->private_impl.f_bcj_x86_prev_mask = ((uint32_t)(v_prev_mask << (v_prev_pos - 1u))); + } + self->private_impl.f_bcj_pos = ((uint32_t)(v_p - 5u)); + return ((uint8_t)(((uint64_t)(v_s.len)))); +} + +// -------- func xz.decoder.apply_filter_05_powerpc + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_05_powerpc( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice) { + wuffs_base__slice_u8 v_s = {0}; + uint32_t v_p = 0; + uint32_t v_x = 0; + + v_s = a_dst_slice; + v_p = self->private_impl.f_bcj_pos; + while (((uint64_t)(v_s.len)) >= 4u) { + v_x = ((((uint32_t)(v_s.ptr[0u])) << 24u) | + (((uint32_t)(v_s.ptr[1u])) << 16u) | + (((uint32_t)(v_s.ptr[2u])) << 8u) | + (((uint32_t)(v_s.ptr[3u])) << 0u)); + if ((v_x & 4227858435u) == 1207959553u) { + v_x = ((((uint32_t)((v_x & 67108860u) - v_p)) & 67108860u) | 1207959553u); + v_s.ptr[0u] = ((uint8_t)((v_x >> 24u))); + v_s.ptr[1u] = ((uint8_t)((v_x >> 16u))); + v_s.ptr[2u] = ((uint8_t)((v_x >> 8u))); + v_s.ptr[3u] = ((uint8_t)((v_x >> 0u))); + } + v_p += 4u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 4u); + } + self->private_impl.f_bcj_pos = v_p; + return ((uint8_t)(((uint64_t)(v_s.len)))); +} + +// -------- func xz.decoder.apply_filter_06_ia64 + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_06_ia64( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice) { + wuffs_base__slice_u8 v_s = {0}; + uint32_t v_p = 0; + uint32_t v_mask = 0; + uint32_t v_slot = 0; + uint32_t v_bit_pos = 0; + uint32_t v_byte_pos = 0; + uint32_t v_bit_res = 0; + uint64_t v_x = 0; + uint32_t v_j = 0; + uint64_t v_norm = 0; + uint32_t v_addr = 0; + + v_s = a_dst_slice; + v_p = self->private_impl.f_bcj_pos; + while (((uint64_t)(v_s.len)) >= 16u) { + v_mask = ((uint32_t)(WUFFS_XZ__FILTER_06_IA64_BRANCH_TABLE[((uint8_t)(v_s.ptr[0u] & 31u))])); + v_slot = 0u; + while (true) { + do { + if (((v_mask >> v_slot) & 1u) == 0u) { + break; + } + v_bit_pos = ((v_slot * 41u) + 5u); + v_byte_pos = (v_bit_pos >> 3u); + v_bit_res = (v_bit_pos & 7u); + v_x = 0u; + v_j = 0u; + while (v_j < 6u) { + v_x |= (((uint64_t)(v_s.ptr[(v_j + v_byte_pos)])) << (8u * v_j)); + v_j += 1u; + } + v_norm = (v_x >> v_bit_res); + if ((((v_norm >> 37u) & 15u) != 5u) || (((v_norm >> 9u) & 7u) != 0u)) { + break; + } + v_addr = ((uint32_t)(((v_norm >> 13u) & 1048575u))); + v_addr |= (((uint32_t)(((v_norm >> 36u) & 1u))) << 20u); + v_addr <<= 4u; + v_addr -= v_p; + v_addr >>= 4u; + v_norm &= 18446743996400148479u; + v_norm |= (((uint64_t)((v_addr & 1048575u))) << 13u); + v_norm |= (((uint64_t)((v_addr & 1048576u))) << 16u); + v_x &= ((((uint64_t)(1u)) << v_bit_res) - 1u); + v_x |= ((uint64_t)(v_norm << v_bit_res)); + v_j = 0u; + while (v_j < 6u) { + v_s.ptr[(v_j + v_byte_pos)] = ((uint8_t)((v_x >> (8u * v_j)))); + v_j += 1u; + } + } while (0); + if (v_slot >= 2u) { + break; + } + v_slot += 1u; + } + v_p += 16u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 16u); + } + self->private_impl.f_bcj_pos = v_p; + return ((uint8_t)(((uint64_t)(v_s.len)))); +} + +// -------- func xz.decoder.apply_filter_07_arm + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_07_arm( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice) { + wuffs_base__slice_u8 v_s = {0}; + uint32_t v_p = 0; + uint32_t v_x = 0; + + v_s = a_dst_slice; + v_p = ((uint32_t)(self->private_impl.f_bcj_pos + 8u)); + while (((uint64_t)(v_s.len)) >= 4u) { + if (v_s.ptr[3u] == 235u) { + v_x = ((((uint32_t)(v_s.ptr[0u])) << 0u) | + (((uint32_t)(v_s.ptr[1u])) << 8u) | + (((uint32_t)(v_s.ptr[2u])) << 16u) | + (((uint32_t)(v_s.ptr[3u])) << 24u)); + v_x = (((uint32_t)(((v_x & 16777215u) << 2u) - v_p)) >> 2u); + v_s.ptr[0u] = ((uint8_t)((v_x >> 0u))); + v_s.ptr[1u] = ((uint8_t)((v_x >> 8u))); + v_s.ptr[2u] = ((uint8_t)((v_x >> 16u))); + } + v_p += 4u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 4u); + } + self->private_impl.f_bcj_pos = ((uint32_t)(v_p - 8u)); + return ((uint8_t)(((uint64_t)(v_s.len)))); +} + +// -------- func xz.decoder.apply_filter_08_armthumb + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_08_armthumb( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice) { + wuffs_base__slice_u8 v_s = {0}; + uint32_t v_p = 0; + uint32_t v_x = 0; + uint32_t v_y = 0; + + v_s = a_dst_slice; + v_p = ((uint32_t)(self->private_impl.f_bcj_pos + 4u)); + while (((uint64_t)(v_s.len)) >= 4u) { + v_x = ((((uint32_t)(v_s.ptr[0u])) << 0u) | + (((uint32_t)(v_s.ptr[1u])) << 8u) | + (((uint32_t)(v_s.ptr[2u])) << 16u) | + (((uint32_t)(v_s.ptr[3u])) << 24u)); + if ((v_x & 4160813056u) != 4160811008u) { + v_p += 2u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 2u); + continue; + } + v_y = ((((uint32_t)(((uint8_t)(v_s.ptr[0u] & 255u)))) << 11u) | + (((uint32_t)(((uint8_t)(v_s.ptr[1u] & 7u)))) << 19u) | + (((uint32_t)(((uint8_t)(v_s.ptr[2u] & 255u)))) << 0u) | + (((uint32_t)(((uint8_t)(v_s.ptr[3u] & 7u)))) << 8u)); + v_y = (((uint32_t)(((uint32_t)(v_y << 1u)) - v_p)) >> 1u); + v_s.ptr[0u] = ((uint8_t)((v_y >> 11u))); + v_s.ptr[1u] = ((uint8_t)((((v_y >> 19u) & 7u) | 240u))); + v_s.ptr[2u] = ((uint8_t)((v_y >> 0u))); + v_s.ptr[3u] = ((uint8_t)((((v_y >> 8u) & 7u) | 248u))); + v_p += 4u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 4u); + } + self->private_impl.f_bcj_pos = ((uint32_t)(v_p - 4u)); + return ((uint8_t)(((uint64_t)(v_s.len)))); +} + +// -------- func xz.decoder.apply_filter_09_sparc + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_09_sparc( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice) { + wuffs_base__slice_u8 v_s = {0}; + uint32_t v_p = 0; + uint32_t v_x = 0; + + v_s = a_dst_slice; + v_p = self->private_impl.f_bcj_pos; + while (((uint64_t)(v_s.len)) >= 4u) { + v_x = ((((uint32_t)(v_s.ptr[0u])) << 24u) | + (((uint32_t)(v_s.ptr[1u])) << 16u) | + (((uint32_t)(v_s.ptr[2u])) << 8u) | + (((uint32_t)(v_s.ptr[3u])) << 0u)); + if (((v_x >> 22u) == 256u) || ((v_x >> 22u) == 511u)) { + v_x = (((uint32_t)(((uint32_t)(v_x << 2u)) - v_p)) >> 2u); + v_x = ((1073741824u - (v_x & 4194304u)) | 1073741824u | (v_x & 4194303u)); + v_s.ptr[0u] = ((uint8_t)((v_x >> 24u))); + v_s.ptr[1u] = ((uint8_t)((v_x >> 16u))); + v_s.ptr[2u] = ((uint8_t)((v_x >> 8u))); + v_s.ptr[3u] = ((uint8_t)((v_x >> 0u))); + } + v_p += 4u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 4u); + } + self->private_impl.f_bcj_pos = v_p; + return ((uint8_t)(((uint64_t)(v_s.len)))); +} + +// -------- func xz.decoder.apply_filter_0a_arm64 + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_0a_arm64( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice) { + wuffs_base__slice_u8 v_s = {0}; + uint32_t v_p = 0; + uint32_t v_x = 0; + uint32_t v_y = 0; + + v_s = a_dst_slice; + v_p = self->private_impl.f_bcj_pos; + while (((uint64_t)(v_s.len)) >= 4u) { + v_x = ((((uint32_t)(v_s.ptr[0u])) << 0u) | + (((uint32_t)(v_s.ptr[1u])) << 8u) | + (((uint32_t)(v_s.ptr[2u])) << 16u) | + (((uint32_t)(v_s.ptr[3u])) << 24u)); + if ((v_x >> 26u) == 37u) { + v_y = ((uint32_t)(v_x - (v_p >> 2u))); + v_x = (2483027968u | (v_y & 67108863u)); + v_s.ptr[0u] = ((uint8_t)((v_x >> 0u))); + v_s.ptr[1u] = ((uint8_t)((v_x >> 8u))); + v_s.ptr[2u] = ((uint8_t)((v_x >> 16u))); + v_s.ptr[3u] = ((uint8_t)((v_x >> 24u))); + } else if ((v_x & 2667577344u) == 2415919104u) { + v_y = (((v_x >> 29u) & 3u) | ((v_x >> 3u) & 2097148u)); + if ((((uint32_t)(v_y + 131072u)) & 1835008u) == 0u) { + v_y -= (v_p >> 12u); + v_x &= 2415919135u; + v_x |= ((v_y & 3u) << 29u); + v_x |= ((v_y & 262140u) << 3u); + v_x |= (((uint32_t)(0u - (v_y & 131072u))) & 14680064u); + v_s.ptr[0u] = ((uint8_t)((v_x >> 0u))); + v_s.ptr[1u] = ((uint8_t)((v_x >> 8u))); + v_s.ptr[2u] = ((uint8_t)((v_x >> 16u))); + v_s.ptr[3u] = ((uint8_t)((v_x >> 24u))); + } + } + v_p += 4u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 4u); + } + self->private_impl.f_bcj_pos = v_p; + return ((uint8_t)(((uint64_t)(v_s.len)))); +} + +// -------- func xz.decoder.apply_filter_0b_riscv + +WUFFS_BASE__GENERATED_C_CODE +static uint8_t +wuffs_xz__decoder__apply_filter_0b_riscv( + wuffs_xz__decoder* self, + wuffs_base__slice_u8 a_dst_slice) { + wuffs_base__slice_u8 v_s = {0}; + uint32_t v_p = 0; + uint32_t v_x = 0; + uint32_t v_x27 = 0; + uint32_t v_y = 0; + uint32_t v_addr = 0; + + v_s = a_dst_slice; + v_p = self->private_impl.f_bcj_pos; + while (((uint64_t)(v_s.len)) >= 8u) { + if (v_s.ptr[0u] == 239u) { + if (((uint8_t)(v_s.ptr[1u] & 13u)) != 0u) { + v_p += 2u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 2u); + continue; + } + v_addr = ((((uint32_t)(((uint8_t)(v_s.ptr[1u] & 240u)))) << 13u) | (((uint32_t)(v_s.ptr[2u])) << 9u) | (((uint32_t)(v_s.ptr[3u])) << 1u)); + v_addr -= v_p; + v_s.ptr[1u] = ((uint8_t)(((uint8_t)(v_s.ptr[1u] & 15u)) | ((uint8_t)(((v_addr >> 8u) & 240u))))); + v_s.ptr[2u] = ((uint8_t)((((v_addr >> 16u) & 15u) | ((v_addr >> 7u) & 16u) | (((uint32_t)(v_addr << 4u)) & 224u)))); + v_s.ptr[3u] = ((uint8_t)((((v_addr >> 4u) & 127u) | ((v_addr >> 13u) & 128u)))); + v_p += 4u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 4u); + continue; + } else if (((uint8_t)(v_s.ptr[0u] & 127u)) == 23u) { + v_x = ((((uint32_t)(v_s.ptr[0u])) << 0u) | + (((uint32_t)(v_s.ptr[1u])) << 8u) | + (((uint32_t)(v_s.ptr[2u])) << 16u) | + (((uint32_t)(v_s.ptr[3u])) << 24u)); + if ((v_x & 3712u) != 0u) { + v_y = ((((uint32_t)(v_s.ptr[4u])) << 0u) | + (((uint32_t)(v_s.ptr[5u])) << 8u) | + (((uint32_t)(v_s.ptr[6u])) << 16u) | + (((uint32_t)(v_s.ptr[7u])) << 24u)); + if (((((uint32_t)(v_x << 8u)) ^ ((uint32_t)(v_y - 3u))) & 1015811u) != 0u) { + v_p += 6u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 6u); + continue; + } + v_addr = ((v_x & 4294963200u) | (v_y >> 20u)); + v_x = (279u | ((uint32_t)(v_y << 12u))); + v_s.ptr[0u] = ((uint8_t)((v_x >> 0u))); + v_s.ptr[1u] = ((uint8_t)((v_x >> 8u))); + v_s.ptr[2u] = ((uint8_t)((v_x >> 16u))); + v_s.ptr[3u] = ((uint8_t)((v_x >> 24u))); + v_s.ptr[4u] = ((uint8_t)((v_addr >> 0u))); + v_s.ptr[5u] = ((uint8_t)((v_addr >> 8u))); + v_s.ptr[6u] = ((uint8_t)((v_addr >> 16u))); + v_s.ptr[7u] = ((uint8_t)((v_addr >> 24u))); + v_p += 8u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 8u); + continue; + } + v_x27 = (v_x >> 27u); + if (((uint32_t)(((uint32_t)(v_x - 12567u)) << 18u)) >= (v_x27 & 29u)) { + v_p += 4u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 4u); + continue; + } + v_addr = ((((uint32_t)(v_s.ptr[4u])) << 24u) | + (((uint32_t)(v_s.ptr[5u])) << 16u) | + (((uint32_t)(v_s.ptr[6u])) << 8u) | + (((uint32_t)(v_s.ptr[7u])) << 0u)); + v_addr -= v_p; + v_y = ((v_x >> 12u) | ((uint32_t)(v_addr << 20u))); + v_x = (23u | (v_x27 << 7u) | (((uint32_t)(v_addr + 2048u)) & 4294963200u)); + v_s.ptr[0u] = ((uint8_t)((v_x >> 0u))); + v_s.ptr[1u] = ((uint8_t)((v_x >> 8u))); + v_s.ptr[2u] = ((uint8_t)((v_x >> 16u))); + v_s.ptr[3u] = ((uint8_t)((v_x >> 24u))); + v_s.ptr[4u] = ((uint8_t)((v_y >> 0u))); + v_s.ptr[5u] = ((uint8_t)((v_y >> 8u))); + v_s.ptr[6u] = ((uint8_t)((v_y >> 16u))); + v_s.ptr[7u] = ((uint8_t)((v_y >> 24u))); + v_p += 8u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 8u); + continue; + } + v_p += 2u; + v_s = wuffs_base__slice_u8__subslice_i(v_s, 2u); + } + self->private_impl.f_bcj_pos = v_p; + return ((uint8_t)(((uint64_t)(v_s.len)))); +} + +// -------- func xz.decoder.get_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC uint64_t +wuffs_xz__decoder__get_quirk( + const wuffs_xz__decoder* self, + uint32_t a_key) { + if (!self) { + return 0; + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return 0; + } + + if (a_key == 1u) { + if (self->private_impl.f_ignore_checksum) { + return 1u; + } + } else if (a_key == 1963655168u) { + if (self->private_impl.f_standalone_format) { + return 1u; + } + } + return 0u; +} + +// -------- func xz.decoder.set_quirk + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_xz__decoder__set_quirk( + wuffs_xz__decoder* self, + uint32_t a_key, + uint64_t a_value) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + + if (a_key == 1u) { + self->private_impl.f_ignore_checksum = (a_value > 0u); + return wuffs_base__make_status(NULL); + } else if (a_key == 1963655168u) { + self->private_impl.f_standalone_format = (a_value > 0u); + return wuffs_base__make_status(NULL); + } + return wuffs_base__make_status(wuffs_base__error__unsupported_option); +} + +// -------- func xz.decoder.dst_history_retain_length + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 +wuffs_xz__decoder__dst_history_retain_length( + const wuffs_xz__decoder* self) { + if (!self) { + return wuffs_base__utility__make_optional_u63(false, 0u); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__make_optional_u63(false, 0u); + } + + return wuffs_lzma__decoder__dst_history_retain_length(&self->private_data.f_lzma); +} + +// -------- func xz.decoder.workbuf_len + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 +wuffs_xz__decoder__workbuf_len( + const wuffs_xz__decoder* self) { + if (!self) { + return wuffs_base__utility__empty_range_ii_u64(); + } + if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && + (self->private_impl.magic != WUFFS_BASE__DISABLED)) { + return wuffs_base__utility__empty_range_ii_u64(); + } + + return wuffs_lzma__decoder__workbuf_len(&self->private_data.f_lzma); +} + +// -------- func xz.decoder.transform_io + +WUFFS_BASE__GENERATED_C_CODE +WUFFS_BASE__MAYBE_STATIC wuffs_base__status +wuffs_xz__decoder__transform_io( + wuffs_xz__decoder* self, + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + if (!self) { + return wuffs_base__make_status(wuffs_base__error__bad_receiver); + } + if (self->private_impl.magic != WUFFS_BASE__MAGIC) { + return wuffs_base__make_status( + (self->private_impl.magic == WUFFS_BASE__DISABLED) + ? wuffs_base__error__disabled_by_previous_error + : wuffs_base__error__initialize_not_called); + } + if (!a_dst || !a_src) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__bad_argument); + } + if ((self->private_impl.active_coroutine != 0) && + (self->private_impl.active_coroutine != 1)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + } + self->private_impl.active_coroutine = 0; + wuffs_base__status status = wuffs_base__make_status(NULL); + + wuffs_base__status v_status = wuffs_base__make_status(NULL); + + uint32_t coro_susp_point = self->private_impl.p_transform_io; + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + + while (true) { + { + wuffs_base__status t_0 = wuffs_xz__decoder__do_transform_io(self, a_dst, a_src, a_workbuf); + v_status = t_0; + } + if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { + status = wuffs_base__make_status(wuffs_xz__error__truncated_input); + goto exit; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + } + + ok: + self->private_impl.p_transform_io = 0; + goto exit; + } + + goto suspend; + suspend: + self->private_impl.p_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + + goto exit; + exit: + if (wuffs_base__status__is_error(&status)) { + self->private_impl.magic = WUFFS_BASE__DISABLED; + } + return status; +} + +// -------- func xz.decoder.do_transform_io -wuffs_base__status WUFFS_BASE__WARN_UNUSED_RESULT -wuffs_xz__decoder__initialize( +WUFFS_BASE__GENERATED_C_CODE +static wuffs_base__status +wuffs_xz__decoder__do_transform_io( wuffs_xz__decoder* self, - size_t sizeof_star_self, - uint64_t wuffs_version, - uint32_t options){ - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); + wuffs_base__io_buffer* a_dst, + wuffs_base__io_buffer* a_src, + wuffs_base__slice_u8 a_workbuf) { + wuffs_base__status status = wuffs_base__make_status(NULL); + + uint64_t v_header_magic = 0; + uint64_t v_dmark = 0; + uint64_t v_smark = 0; + uint8_t v_i8 = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint32_t v_checksum32_have = 0; + uint32_t v_checksum32_want = 0; + uint64_t v_checksum64_have = 0; + uint64_t v_checksum64_want = 0; + wuffs_base__bitvec256 v_checksum256_have = {0}; + uint64_t v_compressed_size = 0; + uint64_t v_uncompressed_size = 0; + uint32_t v_hash = 0; + uint8_t v_c8 = 0; + uint32_t v_c32 = 0; + uint16_t v_footer_magic = 0; + + uint8_t* iop_a_dst = NULL; + uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_dst && a_dst->data.ptr) { + io0_a_dst = a_dst->data.ptr; + io1_a_dst = io0_a_dst + a_dst->meta.wi; + iop_a_dst = io1_a_dst; + io2_a_dst = io0_a_dst + a_dst->data.len; + if (a_dst->meta.closed) { + io2_a_dst = iop_a_dst; + } } - if (sizeof(*self) != sizeof_star_self) { - return wuffs_base__make_status(wuffs_base__error__bad_sizeof_receiver); + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - if (((wuffs_version >> 32) != WUFFS_VERSION_MAJOR) || - (((wuffs_version >> 16) & 0xFFFF) > WUFFS_VERSION_MINOR)) { - return wuffs_base__make_status(wuffs_base__error__bad_wuffs_version); + + uint32_t coro_susp_point = self->private_impl.p_do_transform_io; + if (coro_susp_point) { + v_checksum32_have = self->private_data.s_do_transform_io.v_checksum32_have; + v_checksum32_want = self->private_data.s_do_transform_io.v_checksum32_want; + v_checksum256_have = self->private_data.s_do_transform_io.v_checksum256_have; + v_compressed_size = self->private_data.s_do_transform_io.v_compressed_size; + v_uncompressed_size = self->private_data.s_do_transform_io.v_uncompressed_size; } + switch (coro_susp_point) { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - if ((options & WUFFS_INITIALIZE__ALREADY_ZEROED) != 0) { - // The whole point of this if-check is to detect an uninitialized *self. - // We disable the warning on GCC. Clang-5.0 does not have this warning. -#if !defined(__clang__) && defined(__GNUC__) + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + uint64_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 6)) { + t_0 = ((uint64_t)(wuffs_base__peek_u48le__no_bounds_check(iop_a_src))); + iop_a_src += 6; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 40) { + t_0 = ((uint64_t)(*scratch)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; + } + } + v_header_magic = t_0; + } + if (v_header_magic != 388031461373u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_header); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint64_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 6)) { + t_1 = ((uint64_t)(wuffs_base__peek_u48le__no_bounds_check(iop_a_src))); + iop_a_src += 6; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 40) { + t_1 = ((uint64_t)(*scratch)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; + } + } + v_header_magic = t_1; + } + if (v_header_magic == 72400582410240u) { + self->private_impl.f_checksummer = 0u; + } else if (v_header_magic == 60327687946496u) { + self->private_impl.f_checksummer = 1u; + } else if (v_header_magic == 77742513456128u) { + self->private_impl.f_checksummer = 2u; + } else if (v_header_magic == 177077137508864u) { + self->private_impl.f_checksummer = 3u; + } else if ((v_header_magic & 61695u) != 0u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_header); + goto exit; + } else { + v_header_magic = (15u & (v_header_magic >> 8u)); + if ((v_header_magic != 0u) && + (v_header_magic != 1u) && + (v_header_magic != 4u) && + (v_header_magic != 10u)) { + status = wuffs_base__make_status(wuffs_xz__error__unsupported_checksum_algorithm); + goto exit; + } + status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); + goto exit; + } + self->private_impl.f_flags = ((uint16_t)(v_header_magic)); + self->private_impl.f_num_actual_blocks = 0u; + while (true) { + if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); + continue; + } else if (wuffs_base__peek_u8be__no_bounds_check(iop_a_src) == 0u) { + break; + } + self->private_impl.f_num_actual_blocks += 1u; + if ( ! self->private_impl.f_ignore_checksum) { + wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, + sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + } + self->private_impl.f_compressed_size_for_index = 4u; + while (true) { + v_smark = ((uint64_t)(iop_a_src - io0_a_src)); + { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_2 = wuffs_xz__decoder__decode_block_header_with_padding(self, a_src); + v_status = t_2; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_compressed_size_for_index, wuffs_private_impl__io__count_since(v_smark, ((uint64_t)(iop_a_src - io0_a_src)))); + if ( ! self->private_impl.f_ignore_checksum) { + v_checksum32_have = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_private_impl__io__since(v_smark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + uint32_t t_3; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_3 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_3 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_3; + if (num_bits_3 == 24) { + t_3 = ((uint32_t)(*scratch)); + break; + } + num_bits_3 += 8u; + *scratch |= ((uint64_t)(num_bits_3)) << 56; + } + } + v_checksum32_want = t_3; + } + if (self->private_impl.f_ignore_checksum) { + } else if (v_checksum32_have != v_checksum32_want) { + status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); + goto exit; + } else { + wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, + sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + wuffs_private_impl__ignore_status(wuffs_crc64__ecma_hasher__initialize(&self->private_data.f_crc64, + sizeof (wuffs_crc64__ecma_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + wuffs_private_impl__ignore_status(wuffs_sha256__hasher__initialize(&self->private_data.f_sha256, + sizeof (wuffs_sha256__hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + } + v_compressed_size = 0u; + v_uncompressed_size = 0u; + while (true) { + if (((uint64_t)(self->private_impl.f_bcj_undo_index)) > ((uint64_t)(io2_a_dst - iop_a_dst))) { + status = wuffs_base__make_status(wuffs_base__suspension__short_write); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); + continue; + } + v_dmark = ((uint64_t)(iop_a_dst - io0_a_dst)); + v_smark = ((uint64_t)(iop_a_src - io0_a_src)); + if (self->private_impl.f_num_non_final_filters == 0u) { + { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_4 = wuffs_lzma__decoder__transform_io(&self->private_data.f_lzma, a_dst, a_src, a_workbuf); + v_status = t_4; + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + } else { + if (self->private_impl.f_bcj_undo_index > 0u) { + wuffs_private_impl__io_writer__copy_from_slice(&iop_a_dst, io2_a_dst,wuffs_base__make_slice_u8(self->private_data.f_filter_data[0u], self->private_impl.f_bcj_undo_index)); + self->private_impl.f_bcj_undo_index = 0u; + } + { + uint8_t* o_0_io0_a_dst = io0_a_dst; + uint8_t* o_0_io1_a_dst = io1_a_dst; + io0_a_dst = iop_a_dst; + io1_a_dst = iop_a_dst; + wuffs_base__io_buffer o_0_a_dst; + if (a_dst) { + memcpy(&o_0_a_dst, a_dst, sizeof(*a_dst)); + size_t wi0 = a_dst->meta.wi; + a_dst->data.ptr += wi0; + a_dst->data.len -= wi0; + a_dst->meta.ri = 0; + a_dst->meta.wi = 0; + a_dst->meta.pos = wuffs_base__u64__sat_add(a_dst->meta.pos, wi0); + } + { + if (a_dst) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + } + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_5 = wuffs_lzma__decoder__transform_io(&self->private_data.f_lzma, a_dst, a_src, a_workbuf); + v_status = t_5; + if (a_dst) { + iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; + } + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + if (a_dst) { + memcpy(a_dst, &o_0_a_dst, sizeof(*a_dst)); + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); + io0_a_dst = o_0_io0_a_dst; + io1_a_dst = o_0_io1_a_dst; + } + } + self->private_impl.f_bcj_undo_index = wuffs_xz__decoder__apply_non_final_filters(self, wuffs_private_impl__io__since(v_dmark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); + if ((self->private_impl.f_bcj_undo_index > 0u) && ! wuffs_base__status__is_ok(&v_status)) { + v_i8 = ((uint8_t)(self->private_impl.f_bcj_undo_index - 1u)); + while (true) { + if ( ! (iop_a_dst > io1_a_dst)) { + status = wuffs_base__make_status(wuffs_xz__error__internal_error_inconsistent_bcj_filter_state); + goto exit; + } + self->private_data.f_filter_data[0u][v_i8] = iop_a_dst[-1]; + iop_a_dst--; + if (v_i8 <= 0u) { + break; + } +#if defined(__GNUC__) #pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#pragma GCC diagnostic ignored "-Wconversion" #endif - if (self->private_impl.magic != 0) { - return wuffs_base__make_status(wuffs_base__error__initialize_falsely_claimed_already_zeroed); - } -#if !defined(__clang__) && defined(__GNUC__) + v_i8 -= 1u; +#if defined(__GNUC__) #pragma GCC diagnostic pop #endif - } else { - if ((options & WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED) == 0) { - memset(self, 0, sizeof(*self)); - options |= WUFFS_INITIALIZE__ALREADY_ZEROED; - } else { - memset(&(self->private_impl), 0, sizeof(self->private_impl)); - } - } - - { - wuffs_base__status z = wuffs_crc32__ieee_hasher__initialize( - &self->private_data.f_crc32, sizeof(self->private_data.f_crc32), WUFFS_VERSION, options); - if (z.repr) { - return z; - } - } - { - wuffs_base__status z = wuffs_crc64__ecma_hasher__initialize( - &self->private_data.f_crc64, sizeof(self->private_data.f_crc64), WUFFS_VERSION, options); - if (z.repr) { - return z; - } - } - { - wuffs_base__status z = wuffs_sha256__hasher__initialize( - &self->private_data.f_sha256, sizeof(self->private_data.f_sha256), WUFFS_VERSION, options); - if (z.repr) { - return z; - } - } - { - wuffs_base__status z = wuffs_lzma__decoder__initialize( - &self->private_data.f_lzma, sizeof(self->private_data.f_lzma), WUFFS_VERSION, options); - if (z.repr) { - return z; + } + } + } + v_compressed_size += wuffs_private_impl__io__count_since(v_smark, ((uint64_t)(iop_a_src - io0_a_src))); + v_uncompressed_size += wuffs_private_impl__io__count_since(v_dmark, ((uint64_t)(iop_a_dst - io0_a_dst))); + if (self->private_impl.f_ignore_checksum) { + } else if (self->private_impl.f_checksummer == 1u) { + wuffs_crc32__ieee_hasher__update(&self->private_data.f_crc32, wuffs_private_impl__io__since(v_dmark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); + } else if (self->private_impl.f_checksummer == 2u) { + wuffs_crc64__ecma_hasher__update(&self->private_data.f_crc64, wuffs_private_impl__io__since(v_dmark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); + } else if (self->private_impl.f_checksummer == 3u) { + wuffs_sha256__hasher__update(&self->private_data.f_sha256, wuffs_private_impl__io__since(v_dmark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(10); + } + if ((self->private_impl.f_block_has_compressed_size && (self->private_impl.f_block_compressed_size != v_compressed_size)) || (self->private_impl.f_block_has_uncompressed_size && (self->private_impl.f_block_uncompressed_size != v_uncompressed_size))) { + status = wuffs_base__make_status(wuffs_xz__error__bad_block_header); + goto exit; + } + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_compressed_size_for_index, v_compressed_size); + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_compressed_size_for_index, ((uint64_t)(WUFFS_XZ__CHECKSUM_LENGTH[self->private_impl.f_checksummer]))); + self->private_impl.f_verification_have_total_sizes[0u] += self->private_impl.f_compressed_size_for_index; + v_hash = ((uint32_t)((self->private_impl.f_compressed_size_for_index ^ (self->private_impl.f_compressed_size_for_index >> 32u)))); + v_hash *= 3432918353u; + v_hash = (((uint32_t)(v_hash << 15u)) | (v_hash >> 17u)); + v_hash *= 461845907u; + v_hash ^= self->private_impl.f_verification_have_hashed_sizes[0u]; + v_hash = (((uint32_t)(v_hash << 13u)) | (v_hash >> 19u)); + self->private_impl.f_verification_have_hashed_sizes[0u] = ((uint32_t)(((uint32_t)(v_hash * 5u)) + 3864292196u)); + self->private_impl.f_verification_have_total_sizes[1u] += v_uncompressed_size; + v_hash = ((uint32_t)((v_uncompressed_size ^ (v_uncompressed_size >> 32u)))); + v_hash *= 3432918353u; + v_hash = (((uint32_t)(v_hash << 15u)) | (v_hash >> 17u)); + v_hash *= 461845907u; + v_hash ^= self->private_impl.f_verification_have_hashed_sizes[1u]; + v_hash = (((uint32_t)(v_hash << 13u)) | (v_hash >> 19u)); + self->private_impl.f_verification_have_hashed_sizes[1u] = ((uint32_t)(((uint32_t)(v_hash * 5u)) + 3864292196u)); + while ((v_compressed_size & 3u) != 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_6 = *iop_a_src++; + v_c8 = t_6; + } + if (v_c8 != 0u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_padding); + goto exit; + } + v_compressed_size += 1u; + } + self->private_impl.f_lzma_needs_reset = true; + if (self->private_impl.f_ignore_checksum) { + self->private_data.s_do_transform_io.scratch = ((uint32_t)(WUFFS_XZ__CHECKSUM_LENGTH[self->private_impl.f_checksummer])); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + if (self->private_data.s_do_transform_io.scratch > ((uint64_t)(io2_a_src - iop_a_src))) { + self->private_data.s_do_transform_io.scratch -= ((uint64_t)(io2_a_src - iop_a_src)); + iop_a_src = io2_a_src; + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + iop_a_src += self->private_data.s_do_transform_io.scratch; + } else if (self->private_impl.f_checksummer == 1u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); + uint32_t t_7; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_7 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_7 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_7; + if (num_bits_7 == 24) { + t_7 = ((uint32_t)(*scratch)); + break; + } + num_bits_7 += 8u; + *scratch |= ((uint64_t)(num_bits_7)) << 56; + } + } + v_checksum32_want = t_7; + } + v_checksum32_have = wuffs_crc32__ieee_hasher__checksum_u32(&self->private_data.f_crc32); + if (v_checksum32_have != v_checksum32_want) { + status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); + goto exit; + } + } else if (self->private_impl.f_checksummer == 2u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(15); + uint64_t t_8; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_8 = wuffs_base__peek_u64le__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(16); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_8 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_8; + if (num_bits_8 == 56) { + t_8 = ((uint64_t)(*scratch)); + break; + } + num_bits_8 += 8u; + *scratch |= ((uint64_t)(num_bits_8)) << 56; + } + } + v_checksum64_want = t_8; + } + v_checksum64_have = wuffs_crc64__ecma_hasher__checksum_u64(&self->private_data.f_crc64); + if (v_checksum64_have != v_checksum64_want) { + status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); + goto exit; + } + } else if (self->private_impl.f_checksummer == 3u) { + v_checksum256_have = wuffs_sha256__hasher__checksum_bitvec256(&self->private_data.f_sha256); + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(17); + uint64_t t_9; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_9 = wuffs_base__peek_u64be__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(18); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_9 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_9); + if (num_bits_9 == 56) { + t_9 = ((uint64_t)(*scratch >> 0)); + break; + } + num_bits_9 += 8u; + *scratch |= ((uint64_t)(num_bits_9)); + } + } + v_checksum64_want = t_9; + } + if (wuffs_base__bitvec256__get_u64(&v_checksum256_have, 3u) != v_checksum64_want) { + status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(19); + uint64_t t_10; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_10 = wuffs_base__peek_u64be__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(20); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_10 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_10); + if (num_bits_10 == 56) { + t_10 = ((uint64_t)(*scratch >> 0)); + break; + } + num_bits_10 += 8u; + *scratch |= ((uint64_t)(num_bits_10)); + } + } + v_checksum64_want = t_10; + } + if (wuffs_base__bitvec256__get_u64(&v_checksum256_have, 2u) != v_checksum64_want) { + status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(21); + uint64_t t_11; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_11 = wuffs_base__peek_u64be__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(22); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_11 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_11); + if (num_bits_11 == 56) { + t_11 = ((uint64_t)(*scratch >> 0)); + break; + } + num_bits_11 += 8u; + *scratch |= ((uint64_t)(num_bits_11)); + } + } + v_checksum64_want = t_11; + } + if (wuffs_base__bitvec256__get_u64(&v_checksum256_have, 1u) != v_checksum64_want) { + status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(23); + uint64_t t_12; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { + t_12 = wuffs_base__peek_u64be__no_bounds_check(iop_a_src); + iop_a_src += 8; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(24); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_12 = ((uint32_t)(*scratch & 0xFFu)); + *scratch >>= 8; + *scratch <<= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << (56 - num_bits_12); + if (num_bits_12 == 56) { + t_12 = ((uint64_t)(*scratch >> 0)); + break; + } + num_bits_12 += 8u; + *scratch |= ((uint64_t)(num_bits_12)); + } + } + v_checksum64_want = t_12; + } + if (wuffs_base__bitvec256__get_u64(&v_checksum256_have, 0u) != v_checksum64_want) { + status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); + goto exit; + } + } + } + self->private_impl.f_backwards_size = 0u; + if ( ! self->private_impl.f_ignore_checksum) { + wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, + sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + } + while (true) { + v_smark = ((uint64_t)(iop_a_src - io0_a_src)); + { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_13 = wuffs_xz__decoder__verify_index(self, a_src); + v_status = t_13; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + wuffs_private_impl__u64__sat_add_indirect(&self->private_impl.f_backwards_size, wuffs_private_impl__io__count_since(v_smark, ((uint64_t)(iop_a_src - io0_a_src)))); + if ( ! self->private_impl.f_ignore_checksum) { + wuffs_crc32__ieee_hasher__update(&self->private_data.f_crc32, wuffs_private_impl__io__since(v_smark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(25); + } + if ( ! self->private_impl.f_ignore_checksum) { + wuffs_crc32__ieee_hasher__update(&self->private_data.f_crc32, wuffs_base__make_slice_u8(wuffs_base__strip_const_from_u8_ptr(WUFFS_XZ__ZEROES), (3u & ((uint64_t)(0u - (3u & self->private_impl.f_backwards_size)))))); + } + while ((self->private_impl.f_backwards_size & 3u) != 0u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(26); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_14 = *iop_a_src++; + v_c8 = t_14; + } + if (v_c8 != 0u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_index); + goto exit; + } + self->private_impl.f_backwards_size += 1u; + } + self->private_impl.f_backwards_size >>= 2u; + if ((self->private_impl.f_backwards_size == 0u) || (self->private_impl.f_backwards_size > 4294967295u)) { + status = wuffs_base__make_status(wuffs_xz__error__bad_index); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(27); + uint32_t t_15; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_15 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(28); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_15 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_15; + if (num_bits_15 == 24) { + t_15 = ((uint32_t)(*scratch)); + break; + } + num_bits_15 += 8u; + *scratch |= ((uint64_t)(num_bits_15)) << 56; + } + } + v_checksum32_want = t_15; + } + if (self->private_impl.f_ignore_checksum) { + } else if (v_checksum32_want != wuffs_crc32__ieee_hasher__checksum_u32(&self->private_data.f_crc32)) { + status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); + goto exit; + } else { + wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, + sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(29); + uint32_t t_16; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_16 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(30); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_16 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_16; + if (num_bits_16 == 24) { + t_16 = ((uint32_t)(*scratch)); + break; + } + num_bits_16 += 8u; + *scratch |= ((uint64_t)(num_bits_16)) << 56; + } + } + v_checksum32_want = t_16; + } + while (true) { + v_smark = ((uint64_t)(iop_a_src - io0_a_src)); + { + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_17 = wuffs_xz__decoder__verify_footer(self, a_src); + v_status = t_17; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } + } + if ( ! self->private_impl.f_ignore_checksum) { + wuffs_crc32__ieee_hasher__update(&self->private_data.f_crc32, wuffs_private_impl__io__since(v_smark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); + } + if (wuffs_base__status__is_ok(&v_status)) { + break; + } + status = v_status; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(31); + } + if ( ! self->private_impl.f_ignore_checksum && (v_checksum32_want != wuffs_crc32__ieee_hasher__checksum_u32(&self->private_data.f_crc32))) { + status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(32); + uint16_t t_18; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_18 = wuffs_base__peek_u16le__no_bounds_check(iop_a_src); + iop_a_src += 2; + } else { + self->private_data.s_do_transform_io.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(33); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; + uint32_t num_bits_18 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_18; + if (num_bits_18 == 8) { + t_18 = ((uint16_t)(*scratch)); + break; + } + num_bits_18 += 8u; + *scratch |= ((uint64_t)(num_bits_18)) << 56; + } + } + v_footer_magic = t_18; + } + if (v_footer_magic != 23129u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_footer); + goto exit; + } + if ( ! self->private_impl.f_standalone_format) { + break; + } + while (true) { + while (((uint64_t)(io2_a_src - iop_a_src)) < 4u) { + if (a_src && a_src->meta.closed) { + if (((uint64_t)(io2_a_src - iop_a_src)) == 0u) { + goto label__streams__break; + } else { + status = wuffs_base__make_status(wuffs_xz__error__truncated_input); + goto exit; + } + } + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(34); + } + v_c32 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + if (v_c32 == 1484404733u) { + break; + } else if (v_c32 != 0u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_header_concatenated_stream); + goto exit; + } + iop_a_src += 4u; + } + self->private_impl.f_started_verify_index = false; } - } - self->private_impl.magic = WUFFS_BASE__MAGIC; - self->private_impl.vtable_for__wuffs_base__io_transformer.vtable_name = - wuffs_base__io_transformer__vtable_name; - self->private_impl.vtable_for__wuffs_base__io_transformer.function_pointers = - (const void*)(&wuffs_xz__decoder__func_ptrs_for__wuffs_base__io_transformer); - return wuffs_base__make_status(NULL); -} + label__streams__break:; -wuffs_xz__decoder* -wuffs_xz__decoder__alloc(void) { - wuffs_xz__decoder* x = - (wuffs_xz__decoder*)(calloc(sizeof(wuffs_xz__decoder), 1)); - if (!x) { - return NULL; - } - if (wuffs_xz__decoder__initialize( - x, sizeof(wuffs_xz__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__ALREADY_ZEROED).repr) { - free(x); - return NULL; + ok: + self->private_impl.p_do_transform_io = 0; + goto exit; } - return x; -} - -size_t -sizeof__wuffs_xz__decoder(void) { - return sizeof(wuffs_xz__decoder); -} - -// ---------------- Function Implementations -// -------- func xz.decoder.get_quirk + goto suspend; + suspend: + self->private_impl.p_do_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_do_transform_io.v_checksum32_have = v_checksum32_have; + self->private_data.s_do_transform_io.v_checksum32_want = v_checksum32_want; + self->private_data.s_do_transform_io.v_checksum256_have = v_checksum256_have; + self->private_data.s_do_transform_io.v_compressed_size = v_compressed_size; + self->private_data.s_do_transform_io.v_uncompressed_size = v_uncompressed_size; -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC uint64_t -wuffs_xz__decoder__get_quirk( - const wuffs_xz__decoder* self, - uint32_t a_key) { - if (!self) { - return 0; + goto exit; + exit: + if (a_dst && a_dst->data.ptr) { + a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return 0; + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } - if ((a_key == 1u) && self->private_impl.f_ignore_checksum) { - return 1u; - } - return 0u; + return status; } -// -------- func xz.decoder.set_quirk +// -------- func xz.decoder.decode_block_header_with_padding WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_xz__decoder__set_quirk( +static wuffs_base__status +wuffs_xz__decoder__decode_block_header_with_padding( wuffs_xz__decoder* self, - uint32_t a_key, - uint64_t a_value) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - - if (a_key == 1u) { - self->private_impl.f_ignore_checksum = (a_value > 0u); - return wuffs_base__make_status(NULL); - } - return wuffs_base__make_status(wuffs_base__error__unsupported_option); -} - -// -------- func xz.decoder.dst_history_retain_length - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__optional_u63 -wuffs_xz__decoder__dst_history_retain_length( - const wuffs_xz__decoder* self) { - if (!self) { - return wuffs_base__utility__make_optional_u63(false, 0u); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__make_optional_u63(false, 0u); - } - - return wuffs_lzma__decoder__dst_history_retain_length(&self->private_data.f_lzma); -} + wuffs_base__io_buffer* a_src) { + wuffs_base__status status = wuffs_base__make_status(NULL); -// -------- func xz.decoder.workbuf_len + uint8_t v_c8 = 0; + uint64_t v_padded_size_have = 0; + uint64_t v_padded_size_want = 0; + uint64_t v_smark = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__range_ii_u64 -wuffs_xz__decoder__workbuf_len( - const wuffs_xz__decoder* self) { - if (!self) { - return wuffs_base__utility__empty_range_ii_u64(); - } - if ((self->private_impl.magic != WUFFS_BASE__MAGIC) && - (self->private_impl.magic != WUFFS_BASE__DISABLED)) { - return wuffs_base__utility__empty_range_ii_u64(); + const uint8_t* iop_a_src = NULL; + const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + const uint8_t* io2_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; + if (a_src && a_src->data.ptr) { + io0_a_src = a_src->data.ptr; + io1_a_src = io0_a_src + a_src->meta.ri; + iop_a_src = io1_a_src; + io2_a_src = io0_a_src + a_src->meta.wi; } - return wuffs_base__utility__make_range_ii_u64(0u, 0u); -} - -// -------- func xz.decoder.transform_io - -WUFFS_BASE__GENERATED_C_CODE -WUFFS_BASE__MAYBE_STATIC wuffs_base__status -wuffs_xz__decoder__transform_io( - wuffs_xz__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { - if (!self) { - return wuffs_base__make_status(wuffs_base__error__bad_receiver); - } - if (self->private_impl.magic != WUFFS_BASE__MAGIC) { - return wuffs_base__make_status( - (self->private_impl.magic == WUFFS_BASE__DISABLED) - ? wuffs_base__error__disabled_by_previous_error - : wuffs_base__error__initialize_not_called); - } - if (!a_dst || !a_src) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__bad_argument); - } - if ((self->private_impl.active_coroutine != 0) && - (self->private_impl.active_coroutine != 1)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; - return wuffs_base__make_status(wuffs_base__error__interleaved_coroutine_calls); + uint32_t coro_susp_point = self->private_impl.p_decode_block_header_with_padding; + if (coro_susp_point) { + v_padded_size_have = self->private_data.s_decode_block_header_with_padding.v_padded_size_have; + v_padded_size_want = self->private_data.s_decode_block_header_with_padding.v_padded_size_want; } - self->private_impl.active_coroutine = 0; - wuffs_base__status status = wuffs_base__make_status(NULL); - - wuffs_base__status v_status = wuffs_base__make_status(NULL); - - uint32_t coro_susp_point = self->private_impl.p_transform_io; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; + } + v_padded_size_want = ((uint64_t)((((uint64_t)(v_c8)) * 4u) - 1u)); while (true) { + v_smark = ((uint64_t)(iop_a_src - io0_a_src)); { - wuffs_base__status t_0 = wuffs_xz__decoder__do_transform_io(self, a_dst, a_src, a_workbuf); - v_status = t_0; + if (a_src) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); + } + wuffs_base__status t_1 = wuffs_xz__decoder__decode_block_header_sans_padding(self, a_src); + v_status = t_1; + if (a_src) { + iop_a_src = a_src->data.ptr + a_src->meta.ri; + } } - if ((v_status.repr == wuffs_base__suspension__short_read) && (a_src && a_src->meta.closed)) { - status = wuffs_base__make_status(wuffs_xz__error__truncated_input); - goto exit; + wuffs_private_impl__u64__sat_add_indirect(&v_padded_size_have, wuffs_private_impl__io__count_since(v_smark, ((uint64_t)(iop_a_src - io0_a_src)))); + if (wuffs_base__status__is_ok(&v_status)) { + break; } status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(1); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); + } + if (v_padded_size_have > v_padded_size_want) { + status = wuffs_base__make_status(wuffs_xz__error__bad_block_header); + goto exit; + } + while (v_padded_size_have < v_padded_size_want) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; + } + if (v_c8 != 0u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_block_header); + goto exit; + } + v_padded_size_have += 1u; } ok: - self->private_impl.p_transform_io = 0; + self->private_impl.p_decode_block_header_with_padding = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_impl.active_coroutine = wuffs_base__status__is_suspension(&status) ? 1 : 0; + self->private_impl.p_decode_block_header_with_padding = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_block_header_with_padding.v_padded_size_have = v_padded_size_have; + self->private_data.s_decode_block_header_with_padding.v_padded_size_want = v_padded_size_want; goto exit; exit: - if (wuffs_base__status__is_error(&status)) { - self->private_impl.magic = WUFFS_BASE__DISABLED; + if (a_src && a_src->data.ptr) { + a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } + return status; } -// -------- func xz.decoder.do_transform_io +// -------- func xz.decoder.decode_block_header_sans_padding WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_xz__decoder__do_transform_io( +wuffs_xz__decoder__decode_block_header_sans_padding( wuffs_xz__decoder* self, - wuffs_base__io_buffer* a_dst, - wuffs_base__io_buffer* a_src, - wuffs_base__slice_u8 a_workbuf) { + wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint64_t v_magic = 0; - uint64_t v_dmark = 0; - uint64_t v_smark = 0; - wuffs_base__status v_status = wuffs_base__make_status(NULL); - uint32_t v_checksum32_have = 0; - uint32_t v_checksum32_want = 0; - uint64_t v_checksum64_have = 0; - uint64_t v_checksum64_want = 0; - uint32_t v_padding = 0; uint8_t v_c8 = 0; + uint32_t v_c32 = 0; + uint32_t v_alignment = 0; + uint8_t v_flags = 0; + uint8_t v_filter_id = 0; + wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint32_t v_shift = 0; + uint32_t v_f = 0; + uint32_t v_k = 0; - uint8_t* iop_a_dst = NULL; - uint8_t* io0_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io1_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - uint8_t* io2_a_dst WUFFS_BASE__POTENTIALLY_UNUSED = NULL; - if (a_dst && a_dst->data.ptr) { - io0_a_dst = a_dst->data.ptr; - io1_a_dst = io0_a_dst + a_dst->meta.wi; - iop_a_dst = io1_a_dst; - io2_a_dst = io0_a_dst + a_dst->data.len; - if (a_dst->meta.closed) { - io2_a_dst = iop_a_dst; - } - } const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; const uint8_t* io1_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -66801,211 +83630,127 @@ wuffs_xz__decoder__do_transform_io( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_do_transform_io; + uint32_t coro_susp_point = self->private_impl.p_decode_block_header_sans_padding; if (coro_susp_point) { - v_checksum32_have = self->private_data.s_do_transform_io.v_checksum32_have; - v_padding = self->private_data.s_do_transform_io.v_padding; + v_flags = self->private_data.s_decode_block_header_sans_padding.v_flags; + v_filter_id = self->private_data.s_decode_block_header_sans_padding.v_filter_id; + v_shift = self->private_data.s_decode_block_header_sans_padding.v_shift; + v_f = self->private_data.s_decode_block_header_sans_padding.v_f; } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - uint64_t t_0; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 6)) { - t_0 = ((uint64_t)(wuffs_base__peek_u48le__no_bounds_check(iop_a_src))); - iop_a_src += 6; - } else { - self->private_data.s_do_transform_io.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; - uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; - if (num_bits_0 == 40) { - t_0 = ((uint64_t)(*scratch)); - break; - } - num_bits_0 += 8u; - *scratch |= ((uint64_t)(num_bits_0)) << 56; - } + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - v_magic = t_0; + uint8_t t_0 = *iop_a_src++; + v_flags = t_0; } - if (v_magic != 388031461373u) { - status = wuffs_base__make_status(wuffs_xz__error__bad_header); + self->private_impl.f_num_non_final_filters = ((uint32_t)(((uint8_t)(v_flags & 3u)))); + if (((uint8_t)(v_flags & 60u)) != 0u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_block_header); goto exit; } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); - uint64_t t_1; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 6)) { - t_1 = ((uint64_t)(wuffs_base__peek_u48le__no_bounds_check(iop_a_src))); - iop_a_src += 6; - } else { - self->private_data.s_do_transform_io.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); - while (true) { + self->private_impl.f_block_has_compressed_size = (((uint8_t)(v_flags & 64u)) != 0u); + if (self->private_impl.f_block_has_compressed_size) { + self->private_impl.f_block_compressed_size = 0u; + v_shift = 0u; + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; - uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; - if (num_bits_1 == 40) { - t_1 = ((uint64_t)(*scratch)); - break; + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + if (v_shift <= 56u) { + self->private_impl.f_block_compressed_size |= (((uint64_t)(((uint8_t)(v_c8 & 127u)))) << v_shift); + if (v_c8 >= 128u) { + v_shift += 7u; + continue; + } else if ((v_c8 == 0u) && (v_shift > 0u)) { + status = wuffs_base__make_status(wuffs_xz__error__bad_block_header); + goto exit; } - num_bits_1 += 8u; - *scratch |= ((uint64_t)(num_bits_1)) << 56; + break; + } else if (v_c8 != 1u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_block_header); + goto exit; } - } - v_magic = t_1; - } - if (v_magic == 72400582410240u) { - self->private_impl.f_checksummer = 0u; - } else if (v_magic == 60327687946496u) { - self->private_impl.f_checksummer = 1u; - } else if (v_magic == 77742513456128u) { - self->private_impl.f_checksummer = 2u; - } else if (v_magic == 177077137508864u) { - self->private_impl.f_checksummer = 3u; - } else if ((v_magic & 61695u) != 0u) { - status = wuffs_base__make_status(wuffs_xz__error__bad_header); - goto exit; - } else { - v_magic = (15u & (v_magic >> 8u)); - if ((v_magic != 0u) && - (v_magic != 1u) && - (v_magic != 4u) && - (v_magic != 10u)) { - status = wuffs_base__make_status(wuffs_xz__error__unsupported_checksum_algorithm); - goto exit; - } - status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); - goto exit; - } - while (true) { - if (((uint64_t)(io2_a_src - iop_a_src)) <= 0u) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(5); - continue; - } else if (wuffs_base__peek_u8be__no_bounds_check(iop_a_src) == 0u) { - iop_a_src += 1u; + self->private_impl.f_block_compressed_size |= (((uint64_t)(1u)) << 63u); break; } - if ( ! self->private_impl.f_ignore_checksum) { - wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, - sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); - } + } + self->private_impl.f_block_has_uncompressed_size = (((uint8_t)(v_flags & 128u)) != 0u); + if (self->private_impl.f_block_has_uncompressed_size) { + self->private_impl.f_block_uncompressed_size = 0u; + v_shift = 0u; while (true) { - v_smark = ((uint64_t)(iop_a_src - io0_a_src)); { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - wuffs_base__status t_2 = wuffs_xz__decoder__decode_block_header_with_padding(self, a_src); - v_status = t_2; - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; } - if ( ! self->private_impl.f_ignore_checksum) { - v_checksum32_have = wuffs_crc32__ieee_hasher__update_u32(&self->private_data.f_crc32, wuffs_private_impl__io__since(v_smark, ((uint64_t)(iop_a_src - io0_a_src)), io0_a_src)); - } - if (wuffs_base__status__is_ok(&v_status)) { + if (v_shift <= 56u) { + self->private_impl.f_block_uncompressed_size |= (((uint64_t)(((uint8_t)(v_c8 & 127u)))) << v_shift); + if (v_c8 >= 128u) { + v_shift += 7u; + continue; + } else if ((v_c8 == 0u) && (v_shift > 0u)) { + status = wuffs_base__make_status(wuffs_xz__error__bad_block_header); + goto exit; + } break; + } else if (v_c8 != 1u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_block_header); + goto exit; } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(6); + self->private_impl.f_block_uncompressed_size |= (((uint64_t)(1u)) << 63u); + break; } + } + self->private_impl.f_bcj_x86_prev_mask = 0u; + self->private_impl.choosy_apply_non_final_filters = ( + &wuffs_xz__decoder__apply_non_final_filters__choosy_default); + v_f = 0u; + while (v_f < self->private_impl.f_num_non_final_filters) { { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); - uint32_t t_3; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_3 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_transform_io.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; - uint32_t num_bits_3 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_3; - if (num_bits_3 == 24) { - t_3 = ((uint32_t)(*scratch)); - break; - } - num_bits_3 += 8u; - *scratch |= ((uint64_t)(num_bits_3)) << 56; - } + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } - v_checksum32_want = t_3; + uint8_t t_3 = *iop_a_src++; + v_filter_id = t_3; } - if (self->private_impl.f_ignore_checksum) { - } else if (v_checksum32_have != v_checksum32_want) { - status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); + if (v_filter_id == 33u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_filter); goto exit; - } else { - wuffs_private_impl__ignore_status(wuffs_crc32__ieee_hasher__initialize(&self->private_data.f_crc32, - sizeof (wuffs_crc32__ieee_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); - wuffs_private_impl__ignore_status(wuffs_crc64__ecma_hasher__initialize(&self->private_data.f_crc64, - sizeof (wuffs_crc64__ecma_hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); - wuffs_private_impl__ignore_status(wuffs_sha256__hasher__initialize(&self->private_data.f_sha256, - sizeof (wuffs_sha256__hasher), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); - } - while (true) { - v_dmark = ((uint64_t)(iop_a_dst - io0_a_dst)); - v_smark = ((uint64_t)(iop_a_src - io0_a_src)); + } else if (v_filter_id == 3u) { { - if (a_dst) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - wuffs_base__status t_4 = wuffs_lzma__decoder__transform_io(&self->private_data.f_lzma, a_dst, a_src, wuffs_base__utility__empty_slice_u8()); - v_status = t_4; - if (a_dst) { - iop_a_dst = a_dst->data.ptr + a_dst->meta.wi; - } - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(5); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; } + uint8_t t_4 = *iop_a_src++; + v_c8 = t_4; } - v_padding += ((uint32_t)(wuffs_private_impl__io__count_since(v_smark, ((uint64_t)(iop_a_src - io0_a_src))))); - if (self->private_impl.f_ignore_checksum) { - } else if (self->private_impl.f_checksummer == 1u) { - wuffs_crc32__ieee_hasher__update(&self->private_data.f_crc32, wuffs_private_impl__io__since(v_dmark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); - } else if (self->private_impl.f_checksummer == 2u) { - wuffs_crc64__ecma_hasher__update(&self->private_data.f_crc64, wuffs_private_impl__io__since(v_dmark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); - } else if (self->private_impl.f_checksummer == 3u) { - wuffs_sha256__hasher__update(&self->private_data.f_sha256, wuffs_private_impl__io__since(v_dmark, ((uint64_t)(iop_a_dst - io0_a_dst)), io0_a_dst)); - } - if (wuffs_base__status__is_ok(&v_status)) { - break; + if (v_c8 != 1u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_filter); + goto exit; } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(9); - } - while ((v_padding & 3u) != 0u) { { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(6); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; @@ -67013,105 +83758,166 @@ wuffs_xz__decoder__do_transform_io( uint8_t t_5 = *iop_a_src++; v_c8 = t_5; } - if (v_c8 != 0u) { - status = wuffs_base__make_status(wuffs_xz__error__bad_padding); - goto exit; - } - v_padding += 1u; - } - if (self->private_impl.f_ignore_checksum) { - } else if (self->private_impl.f_checksummer == 1u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); - uint32_t t_6; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { - t_6 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); - iop_a_src += 4; - } else { - self->private_data.s_do_transform_io.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; - uint32_t num_bits_6 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_6; - if (num_bits_6 == 24) { - t_6 = ((uint32_t)(*scratch)); - break; - } - num_bits_6 += 8u; - *scratch |= ((uint64_t)(num_bits_6)) << 56; - } - } - v_checksum32_want = t_6; + self->private_impl.f_filters[v_f] = ((((uint32_t)(v_c8)) << 8u) | 3u); + v_k = 0u; + while (v_k < 256u) { + self->private_data.f_filter_data[v_f][v_k] = 0u; + v_k += 1u; } - v_checksum32_have = wuffs_crc32__ieee_hasher__checksum_u32(&self->private_data.f_crc32); - if (v_checksum32_have != v_checksum32_want) { - status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); - goto exit; + } else if ((v_filter_id < 3u) || (11u < v_filter_id)) { + status = wuffs_base__make_status(wuffs_xz__error__unsupported_filter); + goto exit; + } else if (v_f != 0u) { + status = wuffs_base__make_status(wuffs_xz__error__unsupported_filter_combination); + goto exit; + } else { + self->private_impl.f_filters[v_f] = ((uint32_t)(v_filter_id)); + if (v_filter_id == 4u) { + self->private_impl.choosy_apply_non_final_filters = ( + &wuffs_xz__decoder__apply_filter_04_x86); + } else if (v_filter_id == 5u) { + self->private_impl.choosy_apply_non_final_filters = ( + &wuffs_xz__decoder__apply_filter_05_powerpc); + } else if (v_filter_id == 6u) { + self->private_impl.choosy_apply_non_final_filters = ( + &wuffs_xz__decoder__apply_filter_06_ia64); + } else if (v_filter_id == 7u) { + self->private_impl.choosy_apply_non_final_filters = ( + &wuffs_xz__decoder__apply_filter_07_arm); + } else if (v_filter_id == 8u) { + self->private_impl.choosy_apply_non_final_filters = ( + &wuffs_xz__decoder__apply_filter_08_armthumb); + } else if (v_filter_id == 9u) { + self->private_impl.choosy_apply_non_final_filters = ( + &wuffs_xz__decoder__apply_filter_09_sparc); + } else if (v_filter_id == 10u) { + self->private_impl.choosy_apply_non_final_filters = ( + &wuffs_xz__decoder__apply_filter_0a_arm64); + } else { + self->private_impl.choosy_apply_non_final_filters = ( + &wuffs_xz__decoder__apply_filter_0b_riscv); } - } else if (self->private_impl.f_checksummer == 2u) { { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(13); - uint64_t t_7; - if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 8)) { - t_7 = wuffs_base__peek_u64le__no_bounds_check(iop_a_src); - iop_a_src += 8; - } else { - self->private_data.s_do_transform_io.scratch = 0; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(14); - while (true) { - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint64_t* scratch = &self->private_data.s_do_transform_io.scratch; - uint32_t num_bits_7 = ((uint32_t)(*scratch >> 56)); - *scratch <<= 8; - *scratch >>= 8; - *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_7; - if (num_bits_7 == 56) { - t_7 = ((uint64_t)(*scratch)); - break; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(7); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_6 = *iop_a_src++; + v_c8 = t_6; + } + if (v_c8 == 0u) { + self->private_impl.f_bcj_pos = 0u; + } else if (v_c8 == 4u) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(8); + uint32_t t_7; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_7 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_decode_block_header_sans_padding.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(9); + while (true) { + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint64_t* scratch = &self->private_data.s_decode_block_header_sans_padding.scratch; + uint32_t num_bits_7 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_7; + if (num_bits_7 == 24) { + t_7 = ((uint32_t)(*scratch)); + break; + } + num_bits_7 += 8u; + *scratch |= ((uint64_t)(num_bits_7)) << 56; } - num_bits_7 += 8u; - *scratch |= ((uint64_t)(num_bits_7)) << 56; } + v_c32 = t_7; } - v_checksum64_want = t_7; - } - v_checksum64_have = wuffs_crc64__ecma_hasher__checksum_u64(&self->private_data.f_crc64); - if (v_checksum64_have != v_checksum64_want) { - status = wuffs_base__make_status(wuffs_xz__error__bad_checksum); + v_alignment = ((uint32_t)(WUFFS_XZ__BCJ_OFFSET_ALIGNMENT[v_filter_id])); + if (v_alignment > 0u) { + if ((v_c32 % v_alignment) != 0u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_bcj_offset); + goto exit; + } + } + self->private_impl.f_bcj_pos = v_c32; + } else { + status = wuffs_base__make_status(wuffs_xz__error__unsupported_filter); goto exit; } - } else if (self->private_impl.f_checksummer == 3u) { - status = wuffs_base__make_status(wuffs_xz__error__todo); + } + v_f += 1u; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(10); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_8 = *iop_a_src++; + v_filter_id = t_8; + } + if (v_filter_id == 33u) { + if (self->private_impl.f_lzma_needs_reset) { + wuffs_private_impl__ignore_status(wuffs_lzma__decoder__initialize(&self->private_data.f_lzma, + sizeof (wuffs_lzma__decoder), WUFFS_VERSION, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(11); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_9 = *iop_a_src++; + v_c8 = t_9; + } + if (v_c8 != 1u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_filter); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(12); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_10 = *iop_a_src++; + v_c8 = t_10; + } + v_status = wuffs_lzma__decoder__set_quirk(&self->private_data.f_lzma, 1290294273u, (2u | (((uint64_t)(v_c8)) << 8u))); + if ( ! wuffs_base__status__is_ok(&v_status)) { + status = wuffs_base__make_status(wuffs_xz__error__bad_filter); goto exit; } + } else if ((v_filter_id < 3u) || (11u < v_filter_id)) { + status = wuffs_base__make_status(wuffs_xz__error__unsupported_filter); + goto exit; + } else { + status = wuffs_base__make_status(wuffs_xz__error__bad_filter); + goto exit; } + goto ok; ok: - self->private_impl.p_do_transform_io = 0; + self->private_impl.p_decode_block_header_sans_padding = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_do_transform_io = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_do_transform_io.v_checksum32_have = v_checksum32_have; - self->private_data.s_do_transform_io.v_padding = v_padding; + self->private_impl.p_decode_block_header_sans_padding = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_decode_block_header_sans_padding.v_flags = v_flags; + self->private_data.s_decode_block_header_sans_padding.v_filter_id = v_filter_id; + self->private_data.s_decode_block_header_sans_padding.v_shift = v_shift; + self->private_data.s_decode_block_header_sans_padding.v_f = v_f; goto exit; exit: - if (a_dst && a_dst->data.ptr) { - a_dst->meta.wi = ((size_t)(iop_a_dst - a_dst->data.ptr)); - } if (a_src && a_src->data.ptr) { a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); } @@ -67119,20 +83925,18 @@ wuffs_xz__decoder__do_transform_io( return status; } -// -------- func xz.decoder.decode_block_header_with_padding +// -------- func xz.decoder.verify_index WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_xz__decoder__decode_block_header_with_padding( +wuffs_xz__decoder__verify_index( wuffs_xz__decoder* self, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); uint8_t v_c8 = 0; - uint64_t v_padded_size_have = 0; - uint64_t v_padded_size_want = 0; - uint64_t v_smark = 0; - wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint32_t v_shift = 0; + uint32_t v_hash = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -67145,74 +83949,157 @@ wuffs_xz__decoder__decode_block_header_with_padding( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_block_header_with_padding; + uint32_t coro_susp_point = self->private_impl.p_verify_index; if (coro_susp_point) { - v_padded_size_have = self->private_data.s_decode_block_header_with_padding.v_padded_size_have; - v_padded_size_want = self->private_data.s_decode_block_header_with_padding.v_padded_size_want; + v_shift = self->private_data.s_verify_index.v_shift; } switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_0 = *iop_a_src++; - v_c8 = t_0; - } - v_padded_size_want = ((uint64_t)((((uint64_t)(v_c8)) * 4u) - 1u)); - while (true) { - v_smark = ((uint64_t)(iop_a_src - io0_a_src)); - { - if (a_src) { - a_src->meta.ri = ((size_t)(iop_a_src - a_src->data.ptr)); - } - wuffs_base__status t_1 = wuffs_xz__decoder__decode_block_header_sans_padding(self, a_src); - v_status = t_1; - if (a_src) { - iop_a_src = a_src->data.ptr + a_src->meta.ri; - } - } - wuffs_private_impl__u64__sat_add_indirect(&v_padded_size_have, wuffs_private_impl__io__count_since(v_smark, ((uint64_t)(iop_a_src - io0_a_src)))); - if (wuffs_base__status__is_ok(&v_status)) { - break; - } - status = v_status; - WUFFS_BASE__COROUTINE_SUSPENSION_POINT_MAYBE_SUSPEND(2); - } - if (v_padded_size_have > v_padded_size_want) { - status = wuffs_base__make_status(wuffs_xz__error__bad_block_header); - goto exit; - } - while (v_padded_size_have < v_padded_size_want) { + if ( ! self->private_impl.f_started_verify_index) { + self->private_impl.f_started_verify_index = true; { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint8_t t_2 = *iop_a_src++; - v_c8 = t_2; + uint8_t t_0 = *iop_a_src++; + v_c8 = t_0; } if (v_c8 != 0u) { - status = wuffs_base__make_status(wuffs_xz__error__bad_block_header); + status = wuffs_base__make_status(wuffs_xz__error__bad_index); goto exit; } - v_padded_size_have += 1u; + self->private_impl.f_num_index_blocks = 0u; + v_shift = 0u; + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_1 = *iop_a_src++; + v_c8 = t_1; + } + if (v_shift <= 56u) { + self->private_impl.f_num_index_blocks |= (((uint64_t)(((uint8_t)(v_c8 & 127u)))) << v_shift); + if (v_c8 >= 128u) { + v_shift += 7u; + continue; + } else if ((v_c8 == 0u) && (v_shift > 0u)) { + status = wuffs_base__make_status(wuffs_xz__error__bad_index); + goto exit; + } + break; + } else if (v_c8 != 1u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_index); + goto exit; + } + self->private_impl.f_num_index_blocks |= (((uint64_t)(1u)) << 63u); + break; + } + if (self->private_impl.f_num_index_blocks != self->private_impl.f_num_actual_blocks) { + status = wuffs_base__make_status(wuffs_xz__error__bad_index); + goto exit; + } + } + while (self->private_impl.f_num_index_blocks > 0u) { + self->private_impl.f_num_index_blocks -= 1u; + self->private_impl.f_index_block_compressed_size = 0u; + v_shift = 0u; + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_2 = *iop_a_src++; + v_c8 = t_2; + } + if (v_shift <= 56u) { + self->private_impl.f_index_block_compressed_size |= (((uint64_t)(((uint8_t)(v_c8 & 127u)))) << v_shift); + if (v_c8 >= 128u) { + v_shift += 7u; + continue; + } else if ((v_c8 == 0u) && (v_shift > 0u)) { + status = wuffs_base__make_status(wuffs_xz__error__bad_index); + goto exit; + } + break; + } else if (v_c8 != 1u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_index); + goto exit; + } + self->private_impl.f_index_block_compressed_size |= (((uint64_t)(1u)) << 63u); + break; + } + self->private_impl.f_index_block_uncompressed_size = 0u; + v_shift = 0u; + while (true) { + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { + status = wuffs_base__make_status(wuffs_base__suspension__short_read); + goto suspend; + } + uint8_t t_3 = *iop_a_src++; + v_c8 = t_3; + } + if (v_shift <= 56u) { + self->private_impl.f_index_block_uncompressed_size |= (((uint64_t)(((uint8_t)(v_c8 & 127u)))) << v_shift); + if (v_c8 >= 128u) { + v_shift += 7u; + continue; + } else if ((v_c8 == 0u) && (v_shift > 0u)) { + status = wuffs_base__make_status(wuffs_xz__error__bad_index); + goto exit; + } + break; + } else if (v_c8 != 1u) { + status = wuffs_base__make_status(wuffs_xz__error__bad_index); + goto exit; + } + self->private_impl.f_index_block_uncompressed_size |= (((uint64_t)(1u)) << 63u); + break; + } + self->private_impl.f_verification_want_total_sizes[0u] += self->private_impl.f_index_block_compressed_size; + v_hash = ((uint32_t)((self->private_impl.f_index_block_compressed_size ^ (self->private_impl.f_index_block_compressed_size >> 32u)))); + v_hash *= 3432918353u; + v_hash = (((uint32_t)(v_hash << 15u)) | (v_hash >> 17u)); + v_hash *= 461845907u; + v_hash ^= self->private_impl.f_verification_want_hashed_sizes[0u]; + v_hash = (((uint32_t)(v_hash << 13u)) | (v_hash >> 19u)); + self->private_impl.f_verification_want_hashed_sizes[0u] = ((uint32_t)(((uint32_t)(v_hash * 5u)) + 3864292196u)); + self->private_impl.f_verification_want_total_sizes[1u] += self->private_impl.f_index_block_uncompressed_size; + v_hash = ((uint32_t)((self->private_impl.f_index_block_uncompressed_size ^ (self->private_impl.f_index_block_uncompressed_size >> 32u)))); + v_hash *= 3432918353u; + v_hash = (((uint32_t)(v_hash << 15u)) | (v_hash >> 17u)); + v_hash *= 461845907u; + v_hash ^= self->private_impl.f_verification_want_hashed_sizes[1u]; + v_hash = (((uint32_t)(v_hash << 13u)) | (v_hash >> 19u)); + self->private_impl.f_verification_want_hashed_sizes[1u] = ((uint32_t)(((uint32_t)(v_hash * 5u)) + 3864292196u)); + } + if ((self->private_impl.f_verification_have_hashed_sizes[0u] != self->private_impl.f_verification_want_hashed_sizes[0u]) || + (self->private_impl.f_verification_have_hashed_sizes[1u] != self->private_impl.f_verification_want_hashed_sizes[1u]) || + (self->private_impl.f_verification_have_total_sizes[0u] != self->private_impl.f_verification_want_total_sizes[0u]) || + (self->private_impl.f_verification_have_total_sizes[1u] != self->private_impl.f_verification_want_total_sizes[1u])) { + status = wuffs_base__make_status(wuffs_xz__error__bad_index); + goto exit; } + goto ok; ok: - self->private_impl.p_decode_block_header_with_padding = 0; + self->private_impl.p_verify_index = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_block_header_with_padding = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; - self->private_data.s_decode_block_header_with_padding.v_padded_size_have = v_padded_size_have; - self->private_data.s_decode_block_header_with_padding.v_padded_size_want = v_padded_size_want; + self->private_impl.p_verify_index = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_data.s_verify_index.v_shift = v_shift; goto exit; exit: @@ -67223,19 +84110,16 @@ wuffs_xz__decoder__decode_block_header_with_padding( return status; } -// -------- func xz.decoder.decode_block_header_sans_padding +// -------- func xz.decoder.verify_footer WUFFS_BASE__GENERATED_C_CODE static wuffs_base__status -wuffs_xz__decoder__decode_block_header_sans_padding( +wuffs_xz__decoder__verify_footer( wuffs_xz__decoder* self, wuffs_base__io_buffer* a_src) { wuffs_base__status status = wuffs_base__make_status(NULL); - uint8_t v_c8 = 0; - uint8_t v_flags = 0; - uint8_t v_filter_id = 0; - wuffs_base__status v_status = wuffs_base__make_status(NULL); + uint32_t v_c32 = 0; const uint8_t* iop_a_src = NULL; const uint8_t* io0_a_src WUFFS_BASE__POTENTIALLY_UNUSED = NULL; @@ -67248,92 +84132,86 @@ wuffs_xz__decoder__decode_block_header_sans_padding( io2_a_src = io0_a_src + a_src->meta.wi; } - uint32_t coro_susp_point = self->private_impl.p_decode_block_header_sans_padding; + uint32_t coro_susp_point = self->private_impl.p_verify_footer; switch (coro_susp_point) { WUFFS_BASE__COROUTINE_SUSPENSION_POINT_0; { WUFFS_BASE__COROUTINE_SUSPENSION_POINT(1); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_0 = *iop_a_src++; - v_flags = t_0; - } - if (((uint8_t)(v_flags & 3u)) != 0u) { - status = wuffs_base__make_status(wuffs_xz__error__unsupported_number_of_filters); - goto exit; - } - if (((uint8_t)(v_flags & 60u)) != 0u) { - status = wuffs_base__make_status(wuffs_xz__error__bad_block_header); - goto exit; - } - self->private_impl.f_block_has_compressed_size = (((uint8_t)(v_flags & 64u)) != 0u); - if (self->private_impl.f_block_has_compressed_size) { - self->private_impl.f_block_compressed_size = 0u; - status = wuffs_base__make_status(wuffs_xz__error__todo); - goto exit; - } - self->private_impl.f_block_has_uncompressed_size = (((uint8_t)(v_flags & 128u)) != 0u); - if (self->private_impl.f_block_has_uncompressed_size) { - self->private_impl.f_block_uncompressed_size = 0u; - status = wuffs_base__make_status(wuffs_xz__error__todo); - goto exit; - } - while (true) { - { + uint32_t t_0; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 4)) { + t_0 = wuffs_base__peek_u32le__no_bounds_check(iop_a_src); + iop_a_src += 4; + } else { + self->private_data.s_verify_footer.scratch = 0; WUFFS_BASE__COROUTINE_SUSPENSION_POINT(2); - if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { - status = wuffs_base__make_status(wuffs_base__suspension__short_read); - goto suspend; - } - uint8_t t_1 = *iop_a_src++; - v_filter_id = t_1; - } - if (v_filter_id == 33u) { - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint8_t t_2 = *iop_a_src++; - v_c8 = t_2; - } - if (v_c8 != 1u) { - status = wuffs_base__make_status(wuffs_xz__error__bad_block_header); - goto exit; + uint64_t* scratch = &self->private_data.s_verify_footer.scratch; + uint32_t num_bits_0 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_0; + if (num_bits_0 == 24) { + t_0 = ((uint32_t)(*scratch)); + break; + } + num_bits_0 += 8u; + *scratch |= ((uint64_t)(num_bits_0)) << 56; } - { - WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + } + v_c32 = t_0; + } + if (v_c32 != ((uint32_t)(self->private_impl.f_backwards_size))) { + status = wuffs_base__make_status(wuffs_xz__error__bad_footer); + goto exit; + } + { + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(3); + uint32_t t_1; + if (WUFFS_BASE__LIKELY(io2_a_src - iop_a_src >= 2)) { + t_1 = ((uint32_t)(wuffs_base__peek_u16le__no_bounds_check(iop_a_src))); + iop_a_src += 2; + } else { + self->private_data.s_verify_footer.scratch = 0; + WUFFS_BASE__COROUTINE_SUSPENSION_POINT(4); + while (true) { if (WUFFS_BASE__UNLIKELY(iop_a_src == io2_a_src)) { status = wuffs_base__make_status(wuffs_base__suspension__short_read); goto suspend; } - uint8_t t_3 = *iop_a_src++; - v_c8 = t_3; - } - v_status = wuffs_lzma__decoder__set_quirk(&self->private_data.f_lzma, 1348001792u, (2u | (((uint64_t)(v_c8)) << 8u))); - if ( ! wuffs_base__status__is_ok(&v_status)) { - status = wuffs_base__make_status(wuffs_xz__error__bad_block_header); - goto exit; + uint64_t* scratch = &self->private_data.s_verify_footer.scratch; + uint32_t num_bits_1 = ((uint32_t)(*scratch >> 56)); + *scratch <<= 8; + *scratch >>= 8; + *scratch |= ((uint64_t)(*iop_a_src++)) << num_bits_1; + if (num_bits_1 == 8) { + t_1 = ((uint32_t)(*scratch)); + break; + } + num_bits_1 += 8u; + *scratch |= ((uint64_t)(num_bits_1)) << 56; } - break; } - status = wuffs_base__make_status(wuffs_xz__error__unsupported_filter); + v_c32 = t_1; + } + if (v_c32 != ((uint32_t)(self->private_impl.f_flags))) { + status = wuffs_base__make_status(wuffs_xz__error__bad_footer); goto exit; } goto ok; ok: - self->private_impl.p_decode_block_header_sans_padding = 0; + self->private_impl.p_verify_footer = 0; goto exit; } goto suspend; suspend: - self->private_impl.p_decode_block_header_sans_padding = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; + self->private_impl.p_verify_footer = wuffs_base__status__is_suspension(&status) ? coro_susp_point : 0; goto exit; exit: @@ -67365,16 +84243,12 @@ DynIOBuffer::DynIOBuffer(uint64_t max_incl) : m_buf(wuffs_base__empty_io_buffer()), m_max_incl(max_incl) {} DynIOBuffer::~DynIOBuffer() { - if (allocated()) { - free(m_buf.data.ptr); - } + free(m_buf.data.ptr); } void // DynIOBuffer::drop() { - if (allocated()) { - free(m_buf.data.ptr); - } + free(m_buf.data.ptr); m_buf = wuffs_base__empty_io_buffer(); } @@ -67388,9 +84262,8 @@ DynIOBuffer::grow(uint64_t min_incl) { } else if (n > SIZE_MAX) { return DynIOBuffer::GrowResult::FailedOutOfMemory; } else if (n > m_buf.data.len) { - uint8_t* ptr = static_cast( - allocated() ? realloc(m_buf.data.ptr, static_cast(n)) - : malloc(static_cast(n))); + uint8_t* ptr = + static_cast(realloc(m_buf.data.ptr, static_cast(n))); if (!ptr) { return DynIOBuffer::GrowResult::FailedOutOfMemory; } @@ -67400,12 +84273,6 @@ DynIOBuffer::grow(uint64_t min_incl) { return DynIOBuffer::GrowResult::OK; } -bool // -DynIOBuffer::allocated() { - IOBuffer buf = wuffs_base__empty_io_buffer(); - return buf.data.ptr != m_buf.data.ptr; -} - // round_up rounds min_incl up, returning the smallest value x satisfying // (min_incl <= x) and (x <= max_incl) and some other constraints. It returns 0 // if there is no such x. @@ -67693,15 +84560,13 @@ DecodeCborCallbacks::Done(DecodeCborResult& result, sync_io::Input& input, IOBuffer& buffer) {} -DecodeCborArgQuirks::DecodeCborArgQuirks(wuffs_base__slice_u32 repr0) - : repr(repr0) {} - -DecodeCborArgQuirks::DecodeCborArgQuirks(uint32_t* ptr0, size_t len0) - : repr(wuffs_base__make_slice_u32(ptr0, len0)) {} +DecodeCborArgQuirks::DecodeCborArgQuirks(const QuirkKeyValuePair* ptr0, + const size_t len0) + : ptr(ptr0), len(len0) {} DecodeCborArgQuirks // DecodeCborArgQuirks::DefaultValue() { - return DecodeCborArgQuirks(wuffs_base__empty_slice_u32()); + return DecodeCborArgQuirks(nullptr, 0); } DecodeCborResult // @@ -67730,8 +84595,8 @@ DecodeCbor(DecodeCborCallbacks& callbacks, ret_error_message = "wuffs_aux::DecodeCbor: out of memory"; goto done; } - for (size_t i = 0; i < quirks.repr.len; i++) { - dec->set_quirk(quirks.repr.ptr[i], 1); + for (size_t i = 0; i < quirks.len; i++) { + dec->set_quirk(quirks.ptr[i].first, quirks.ptr[i].second); } // Prepare the wuffs_base__tok_buffer. 256 tokens is 2KiB. @@ -68089,6 +84954,11 @@ DecodeImageCallbacks::SelectDecoder(uint32_t fourcc, return wuffs_bmp__decoder::alloc_as__wuffs_base__image_decoder(); #endif +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ETC2) + case WUFFS_BASE__FOURCC__ETC2: + return wuffs_etc2__decoder::alloc_as__wuffs_base__image_decoder(); +#endif + #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__GIF) case WUFFS_BASE__FOURCC__GIF: return wuffs_gif__decoder::alloc_as__wuffs_base__image_decoder(); @@ -68118,15 +84988,30 @@ DecodeImageCallbacks::SelectDecoder(uint32_t fourcc, } #endif -#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__TGA) +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__QOI) + case WUFFS_BASE__FOURCC__QOI: + return wuffs_qoi__decoder::alloc_as__wuffs_base__image_decoder(); +#endif + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__TARGA) case WUFFS_BASE__FOURCC__TGA: - return wuffs_tga__decoder::alloc_as__wuffs_base__image_decoder(); + return wuffs_targa__decoder::alloc_as__wuffs_base__image_decoder(); +#endif + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__THUMBHASH) + case WUFFS_BASE__FOURCC__TH: + return wuffs_thumbhash__decoder::alloc_as__wuffs_base__image_decoder(); #endif #if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WBMP) case WUFFS_BASE__FOURCC__WBMP: return wuffs_wbmp__decoder::alloc_as__wuffs_base__image_decoder(); #endif + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WEBP) + case WUFFS_BASE__FOURCC__WEBP: + return wuffs_webp__decoder::alloc_as__wuffs_base__image_decoder(); +#endif } return wuffs_base__image_decoder::unique_ptr(nullptr); @@ -68157,7 +85042,7 @@ DecodeImageCallbacks::AllocPixbuf(const wuffs_base__image_config& image_config, return AllocPixbufResult(DecodeImage_UnsupportedPixelConfiguration); } void* ptr = - allow_uninitialized_memory ? malloc((size_t)len) : calloc((size_t)len, 1); + allow_uninitialized_memory ? malloc((size_t)len) : calloc(1, (size_t)len); if (!ptr) { return AllocPixbufResult(DecodeImage_OutOfMemory); } @@ -68182,7 +85067,7 @@ DecodeImageCallbacks::AllocWorkbuf(wuffs_base__range_ii_u64 len_range, return AllocWorkbufResult(DecodeImage_OutOfMemory); } void* ptr = - allow_uninitialized_memory ? malloc((size_t)len) : calloc((size_t)len, 1); + allow_uninitialized_memory ? malloc((size_t)len) : calloc(1, (size_t)len); if (!ptr) { return AllocWorkbufResult(DecodeImage_OutOfMemory); } @@ -68219,15 +85104,13 @@ const char DecodeImage_UnsupportedPixelConfiguration[] = // const char DecodeImage_UnsupportedPixelFormat[] = // "wuffs_aux::DecodeImage: unsupported pixel format"; -DecodeImageArgQuirks::DecodeImageArgQuirks(wuffs_base__slice_u32 repr0) - : repr(repr0) {} - -DecodeImageArgQuirks::DecodeImageArgQuirks(uint32_t* ptr0, size_t len0) - : repr(wuffs_base__make_slice_u32(ptr0, len0)) {} +DecodeImageArgQuirks::DecodeImageArgQuirks(const QuirkKeyValuePair* ptr0, + const size_t len0) + : ptr(ptr0), len(len0) {} DecodeImageArgQuirks // DecodeImageArgQuirks::DefaultValue() { - return DecodeImageArgQuirks(wuffs_base__empty_slice_u32()); + return DecodeImageArgQuirks(nullptr, 0); } DecodeImageArgFlags::DecodeImageArgFlags(uint64_t repr0) : repr(repr0) {} @@ -68325,7 +85208,8 @@ DecodeImage0(wuffs_base__image_decoder::unique_ptr& image_decoder, DecodeImageCallbacks& callbacks, sync_io::Input& input, wuffs_base__io_buffer& io_buf, - wuffs_base__slice_u32 quirks, + const QuirkKeyValuePair* quirks_ptr, + const size_t quirks_len, uint64_t flags, wuffs_base__pixel_blend pixel_blend, wuffs_base__color_u32_argb_premul background_color, @@ -68408,8 +85292,8 @@ DecodeImage0(wuffs_base__image_decoder::unique_ptr& image_decoder, } // Apply quirks. - for (size_t i = 0; i < quirks.len; i++) { - image_decoder->set_quirk(quirks.ptr[i], 1); + for (size_t i = 0; i < quirks_len; i++) { + image_decoder->set_quirk(quirks_ptr[i].first, quirks_ptr[i].second); } // Apply flags. @@ -68483,6 +85367,7 @@ DecodeImage0(wuffs_base__image_decoder::unique_ptr& image_decoder, wuffs_base__pixel_format pixel_format = callbacks.SelectPixfmt(image_config); if (pixel_format.repr != image_config.pixcfg.pixel_format().repr) { switch (pixel_format.repr) { + case WUFFS_BASE__PIXEL_FORMAT__Y: case WUFFS_BASE__PIXEL_FORMAT__BGR_565: case WUFFS_BASE__PIXEL_FORMAT__BGR: case WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL: @@ -68636,10 +85521,10 @@ DecodeImage(DecodeImageCallbacks& callbacks, } wuffs_base__image_decoder::unique_ptr image_decoder(nullptr); - DecodeImageResult result = - DecodeImage0(image_decoder, callbacks, input, *io_buf, quirks.repr, - flags.repr, pixel_blend.repr, background_color.repr, - max_incl_dimension.repr, max_incl_metadata_length.repr); + DecodeImageResult result = DecodeImage0( + image_decoder, callbacks, input, *io_buf, quirks.ptr, quirks.len, + flags.repr, pixel_blend.repr, background_color.repr, + max_incl_dimension.repr, max_incl_metadata_length.repr); callbacks.Done(result, input, *io_buf, std::move(image_decoder)); return result; } @@ -68674,15 +85559,13 @@ const char DecodeJson_BadJsonPointer[] = // const char DecodeJson_NoMatch[] = // "wuffs_aux::DecodeJson: no match"; -DecodeJsonArgQuirks::DecodeJsonArgQuirks(wuffs_base__slice_u32 repr0) - : repr(repr0) {} - -DecodeJsonArgQuirks::DecodeJsonArgQuirks(uint32_t* ptr0, size_t len0) - : repr(wuffs_base__make_slice_u32(ptr0, len0)) {} +DecodeJsonArgQuirks::DecodeJsonArgQuirks(const QuirkKeyValuePair* ptr0, + const size_t len0) + : ptr(ptr0), len(len0) {} DecodeJsonArgQuirks // DecodeJsonArgQuirks::DefaultValue() { - return DecodeJsonArgQuirks(wuffs_base__empty_slice_u32()); + return DecodeJsonArgQuirks(nullptr, 0); } DecodeJsonArgJsonPointer::DecodeJsonArgJsonPointer(std::string repr0) @@ -69027,11 +85910,11 @@ DecodeJson(DecodeJsonCallbacks& callbacks, goto done; } bool allow_tilde_n_tilde_r_tilde_t = false; - for (size_t i = 0; i < quirks.repr.len; i++) { - dec->set_quirk(quirks.repr.ptr[i], 1); - if (quirks.repr.ptr[i] == + for (size_t i = 0; i < quirks.len; i++) { + dec->set_quirk(quirks.ptr[i].first, quirks.ptr[i].second); + if (quirks.ptr[i].first == WUFFS_JSON__QUIRK_JSON_POINTER_ALLOW_TILDE_N_TILDE_R_TILDE_T) { - allow_tilde_n_tilde_r_tilde_t = true; + allow_tilde_n_tilde_r_tilde_t = (quirks.ptr[i].second != 0); } } @@ -69238,6 +86121,537 @@ DecodeJson(DecodeJsonCallbacks& callbacks, #endif // defined(__cplusplus) && defined(WUFFS_BASE__HAVE_UNIQUE_PTR) + +// ---------------- Wuffs' reimplementation of the STB API. +// +// This is a drop-in replacement of that third-party library. +// +// Disabled by default, unless you #define the +// WUFFS_CONFIG__ENABLE_DROP_IN_REPLACEMENT__STB macro beforehand. +// +// For API docs, see https://github.com/nothings/stb + +#if defined(WUFFS_CONFIG__ENABLE_DROP_IN_REPLACEMENT__STB) + +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif + +// -------- + +#if defined(__GNUC__) +__thread const char* // + wuffs_drop_in__stb__g_failure_reason = NULL; +#elif defined(_MSC_VER) +__declspec(thread) const char* // + wuffs_drop_in__stb__g_failure_reason = NULL; +#else +const char* // + wuffs_drop_in__stb__g_failure_reason = NULL; +#endif + +// -------- + +static void // +wuffs_drop_in__stb__read( // + wuffs_base__io_buffer* srcbuf, // + stbi_io_callbacks const* clbk, // + void* user) { + uint8_t* ptr = wuffs_base__io_buffer__writer_pointer(srcbuf); + size_t len = wuffs_base__io_buffer__writer_length(srcbuf); + if (len > INT_MAX) { + len = INT_MAX; + } + int n = clbk->read(user, (char*)ptr, (int)len); + if (n > 0) { + srcbuf->meta.wi += (size_t)n; + } else { + srcbuf->meta.closed = clbk->eof(user); + } +} + +static wuffs_base__image_decoder* // +wuffs_drop_in__stb__make_decoder( // + wuffs_base__io_buffer* srcbuf, // + stbi_io_callbacks const* clbk, // + void* user) { + while (1) { + int32_t fourcc = wuffs_base__magic_number_guess_fourcc( + wuffs_base__io_buffer__reader_slice(srcbuf), srcbuf->meta.closed); + if (fourcc < 0) { + if (srcbuf->meta.closed || !clbk) { + break; + } + wuffs_drop_in__stb__read(srcbuf, clbk, user); + continue; + } + + switch (fourcc) { +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__BMP) + case WUFFS_BASE__FOURCC__BMP: + return wuffs_bmp__decoder__alloc_as__wuffs_base__image_decoder(); +#endif + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__ETC2) + case WUFFS_BASE__FOURCC__ETC2: + return wuffs_etc2__decoder__alloc_as__wuffs_base__image_decoder(); +#endif + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__GIF) + case WUFFS_BASE__FOURCC__GIF: + return wuffs_gif__decoder__alloc_as__wuffs_base__image_decoder(); +#endif + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__JPEG) + case WUFFS_BASE__FOURCC__JPEG: + return wuffs_jpeg__decoder__alloc_as__wuffs_base__image_decoder(); +#endif + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NIE) + case WUFFS_BASE__FOURCC__NIE: + return wuffs_nie__decoder__alloc_as__wuffs_base__image_decoder(); +#endif + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__NETPBM) + case WUFFS_BASE__FOURCC__NPBM: + return wuffs_netpbm__decoder__alloc_as__wuffs_base__image_decoder(); +#endif + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__PNG) + case WUFFS_BASE__FOURCC__PNG: + return wuffs_png__decoder__alloc_as__wuffs_base__image_decoder(); +#endif + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__QOI) + case WUFFS_BASE__FOURCC__QOI: + return wuffs_qoi__decoder__alloc_as__wuffs_base__image_decoder(); +#endif + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__TARGA) + case WUFFS_BASE__FOURCC__TGA: + return wuffs_targa__decoder__alloc_as__wuffs_base__image_decoder(); +#endif + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__THUMBHASH) + case WUFFS_BASE__FOURCC__TH: + return wuffs_thumbhash__decoder__alloc_as__wuffs_base__image_decoder(); +#endif + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WBMP) + case WUFFS_BASE__FOURCC__WBMP: + return wuffs_wbmp__decoder__alloc_as__wuffs_base__image_decoder(); +#endif + +#if !defined(WUFFS_CONFIG__MODULES) || defined(WUFFS_CONFIG__MODULE__WEBP) + case WUFFS_BASE__FOURCC__WEBP: + return wuffs_webp__decoder__alloc_as__wuffs_base__image_decoder(); +#endif + } + + wuffs_drop_in__stb__g_failure_reason = "unknown image type"; + break; + } + return NULL; +} + +// -------- + +static void* // +wuffs_drop_in__stb__load1( // + wuffs_base__io_buffer* srcbuf, // + stbi_io_callbacks const* clbk, // + void* user, // + wuffs_base__image_decoder* dec, // + wuffs_base__image_config* ic, // + uint32_t dst_pixfmt, // + int desired_channels, // + int info_only) { + // Favor faster decodes over rejecting invalid checksums. + wuffs_base__image_decoder__set_quirk(dec, WUFFS_BASE__QUIRK_IGNORE_CHECKSUM, + 1); + + while (1) { + wuffs_base__status status = + wuffs_base__image_decoder__decode_image_config(dec, ic, srcbuf); + if (status.repr == NULL) { + break; + } else if ((status.repr != wuffs_base__suspension__short_read) || !clbk) { + wuffs_drop_in__stb__g_failure_reason = status.repr; + return NULL; + } + + size_t wl = wuffs_base__io_buffer__writer_length(srcbuf); + wuffs_base__io_buffer__compact(srcbuf); + if (wl >= wuffs_base__io_buffer__writer_length(srcbuf)) { + wuffs_drop_in__stb__g_failure_reason = "I/O buffer is too small"; + return NULL; + } + wuffs_drop_in__stb__read(srcbuf, clbk, user); + } + + uint32_t w = wuffs_base__pixel_config__width(&ic->pixcfg); + uint32_t h = wuffs_base__pixel_config__height(&ic->pixcfg); + if ((w > 0xFFFFFF) || (h > 0xFFFFFF)) { + wuffs_drop_in__stb__g_failure_reason = "image is too large"; + return NULL; + } else if (info_only) { + return NULL; + } + + uint64_t pixbuf_len = (uint64_t)w * (uint64_t)h * (uint64_t)desired_channels; + uint64_t workbuf_len = wuffs_base__image_decoder__workbuf_len(dec).max_incl; +#if SIZE_MAX < 0xFFFFFFFFFFFFFFFFull + if ((pixbuf_len > ((uint64_t)SIZE_MAX)) || + (workbuf_len > ((uint64_t)SIZE_MAX))) { + wuffs_drop_in__stb__g_failure_reason = "image is too large"; + return NULL; + } +#endif + void* pixbuf_ptr = malloc((size_t)pixbuf_len); + if (!pixbuf_ptr) { + wuffs_drop_in__stb__g_failure_reason = "out of memory"; + return NULL; + } + void* workbuf_ptr = malloc((size_t)workbuf_len); + if (!workbuf_ptr) { + free(pixbuf_ptr); + wuffs_drop_in__stb__g_failure_reason = "out of memory"; + return NULL; + } + wuffs_base__slice_u8 workbuf = + wuffs_base__make_slice_u8(workbuf_ptr, (size_t)workbuf_len); + + wuffs_base__pixel_config pc = ((wuffs_base__pixel_config){}); + wuffs_base__pixel_config__set(&pc, dst_pixfmt, + WUFFS_BASE__PIXEL_SUBSAMPLING__NONE, w, h); + + wuffs_base__pixel_buffer pb = ((wuffs_base__pixel_buffer){}); + { + wuffs_base__status status = wuffs_base__pixel_buffer__set_from_slice( + &pb, &pc, wuffs_base__make_slice_u8(pixbuf_ptr, (size_t)pixbuf_len)); + if (status.repr) { + free(workbuf_ptr); + free(pixbuf_ptr); + wuffs_drop_in__stb__g_failure_reason = status.repr; + return NULL; + } + } + + while (1) { + wuffs_base__status status = wuffs_base__image_decoder__decode_frame( + dec, &pb, srcbuf, WUFFS_BASE__PIXEL_BLEND__SRC, workbuf, NULL); + if (status.repr == NULL) { + break; + } else if ((status.repr != wuffs_base__suspension__short_read) || !clbk) { + free(workbuf_ptr); + free(pixbuf_ptr); + wuffs_drop_in__stb__g_failure_reason = status.repr; + return NULL; + } + + size_t wl = wuffs_base__io_buffer__writer_length(srcbuf); + wuffs_base__io_buffer__compact(srcbuf); + if (wl >= wuffs_base__io_buffer__writer_length(srcbuf)) { + free(workbuf_ptr); + free(pixbuf_ptr); + wuffs_drop_in__stb__g_failure_reason = "I/O buffer is too small"; + return NULL; + } + wuffs_drop_in__stb__read(srcbuf, clbk, user); + } + + free(workbuf_ptr); + return pixbuf_ptr; +} + +static void* // +wuffs_drop_in__stb__load0( // + wuffs_base__io_buffer* srcbuf, // + stbi_io_callbacks const* clbk, // + void* user, // + int* x, // + int* y, // + int* channels_in_file, // + int desired_channels, // + int info_only) { + uint32_t dst_pixfmt = 0; + switch (desired_channels) { + case 1: + dst_pixfmt = WUFFS_BASE__PIXEL_FORMAT__Y; + break; + case 3: + dst_pixfmt = WUFFS_BASE__PIXEL_FORMAT__RGB; + break; + case 4: + dst_pixfmt = WUFFS_BASE__PIXEL_FORMAT__RGBA_NONPREMUL; + break; + default: + wuffs_drop_in__stb__g_failure_reason = "unsupported format conversion"; + return NULL; + } + + wuffs_base__image_decoder* dec = + wuffs_drop_in__stb__make_decoder(srcbuf, clbk, user); + if (!dec) { + if (wuffs_drop_in__stb__g_failure_reason == NULL) { + wuffs_drop_in__stb__g_failure_reason = "couldn't allocate image decoder"; + } + return NULL; + } + + wuffs_base__image_config ic = ((wuffs_base__image_config){}); + stbi_uc* ret = wuffs_drop_in__stb__load1( + srcbuf, clbk, user, dec, &ic, dst_pixfmt, desired_channels, info_only); + free(dec); + + if (!info_only && !ret) { + return NULL; + } + + if (x) { + *x = (int)wuffs_base__pixel_config__width(&ic.pixcfg); + } + if (y) { + *y = (int)wuffs_base__pixel_config__height(&ic.pixcfg); + } + if (channels_in_file) { + wuffs_base__pixel_format src_pixfmt = + wuffs_base__pixel_config__pixel_format(&ic.pixcfg); + uint32_t n_color = wuffs_base__pixel_format__coloration(&src_pixfmt); + uint32_t n_alpha = wuffs_base__pixel_format__transparency(&src_pixfmt) != + WUFFS_BASE__PIXEL_ALPHA_TRANSPARENCY__OPAQUE; + *channels_in_file = (int)(n_color + n_alpha); + } + + return ret; +} + +// -------- + +WUFFS_DROP_IN__STB__MAYBE_STATIC int // +stbi_info_from_memory( // + stbi_uc const* buffer, // + int len, // + int* x, // + int* y, // + int* comp) { + wuffs_drop_in__stb__g_failure_reason = NULL; + if (len < 0) { + wuffs_drop_in__stb__g_failure_reason = "negative buffer length"; + return 0; + } else if (len == 0) { + wuffs_drop_in__stb__g_failure_reason = "empty buffer"; + return 0; + } + wuffs_base__io_buffer srcbuf = + wuffs_base__ptr_u8__reader((uint8_t*)(stbi_uc*)buffer, (size_t)len, true); + wuffs_drop_in__stb__load0(&srcbuf, NULL, NULL, x, y, comp, 1, 1); + return wuffs_drop_in__stb__g_failure_reason == NULL; +} + +WUFFS_DROP_IN__STB__MAYBE_STATIC stbi_uc* // +stbi_load_from_memory( // + stbi_uc const* buffer, // + int len, // + int* x, // + int* y, // + int* channels_in_file, // + int desired_channels) { + wuffs_drop_in__stb__g_failure_reason = NULL; + if (len < 0) { + wuffs_drop_in__stb__g_failure_reason = "negative buffer length"; + return NULL; + } else if (len == 0) { + wuffs_drop_in__stb__g_failure_reason = "empty buffer"; + return NULL; + } + wuffs_base__io_buffer srcbuf = + wuffs_base__ptr_u8__reader((uint8_t*)(stbi_uc*)buffer, (size_t)len, true); + return wuffs_drop_in__stb__load0(&srcbuf, NULL, NULL, x, y, channels_in_file, + desired_channels, 0); +} + +WUFFS_DROP_IN__STB__MAYBE_STATIC int // +stbi_info_from_callbacks( // + stbi_io_callbacks const* clbk, // + void* user, // + int* x, // + int* y, // + int* comp) { + wuffs_drop_in__stb__g_failure_reason = NULL; + void* iobuf_ptr = malloc(65536u); + if (!iobuf_ptr) { + wuffs_drop_in__stb__g_failure_reason = "out of memory"; + return 0; + } + wuffs_base__io_buffer srcbuf = + wuffs_base__ptr_u8__writer((uint8_t*)iobuf_ptr, 65536u); + wuffs_drop_in__stb__load0(&srcbuf, clbk, user, x, y, comp, 1, 1); + free(iobuf_ptr); + return wuffs_drop_in__stb__g_failure_reason == NULL; +} + +WUFFS_DROP_IN__STB__MAYBE_STATIC stbi_uc* // +stbi_load_from_callbacks( // + stbi_io_callbacks const* clbk, // + void* user, // + int* x, // + int* y, // + int* channels_in_file, // + int desired_channels) { + wuffs_drop_in__stb__g_failure_reason = NULL; + void* iobuf_ptr = malloc(65536u); + if (!iobuf_ptr) { + wuffs_drop_in__stb__g_failure_reason = "out of memory"; + return NULL; + } + wuffs_base__io_buffer srcbuf = + wuffs_base__ptr_u8__writer((uint8_t*)iobuf_ptr, 65536u); + stbi_uc* ret = wuffs_drop_in__stb__load0( + &srcbuf, clbk, user, x, y, channels_in_file, desired_channels, 0); + free(iobuf_ptr); + return ret; +} + +WUFFS_DROP_IN__STB__MAYBE_STATIC void // +stbi_image_free( // + void* retval_from_stbi_load) { + wuffs_drop_in__stb__g_failure_reason = NULL; + free(retval_from_stbi_load); +} + +WUFFS_DROP_IN__STB__MAYBE_STATIC const char* // +stbi_failure_reason(void) { + return wuffs_drop_in__stb__g_failure_reason + ? wuffs_drop_in__stb__g_failure_reason + : "ok"; +} + +// -------- + +#if !defined(STBI_NO_STDIO) + +#include + +// TODO: retry after EINTR? + +static int // +wuffs_drop_in__stb__file_callbacks__read( // + void* user, // + char* data, // + int size) { + return (int)fread(data, 1u, (size_t)size, (FILE*)user); +} + +static void // +wuffs_drop_in__stb__file_callbacks__skip( // + void* user, // + int n) { + fseek((FILE*)user, (long)n, SEEK_CUR); +} + +static int // +wuffs_drop_in__stb__file_callbacks__eof( // + void* user) { + return feof((FILE*)user); +} + +WUFFS_DROP_IN__STB__MAYBE_STATIC int // +stbi_info( // + char const* filename, // + int* x, // + int* y, // + int* comp) { + wuffs_drop_in__stb__g_failure_reason = NULL; + FILE* f = fopen(filename, "rb"); + if (!f) { + wuffs_drop_in__stb__g_failure_reason = "could not open file"; + return 0; + } + int ret = stbi_info_from_file(f, x, y, comp); + fclose(f); + return ret; +} + +WUFFS_DROP_IN__STB__MAYBE_STATIC stbi_uc* // +stbi_load( // + char const* filename, // + int* x, // + int* y, // + int* channels_in_file, // + int desired_channels) { + wuffs_drop_in__stb__g_failure_reason = NULL; + FILE* f = fopen(filename, "rb"); + if (!f) { + wuffs_drop_in__stb__g_failure_reason = "could not open file"; + return NULL; + } + stbi_uc* ret = + stbi_load_from_file(f, x, y, channels_in_file, desired_channels); + fclose(f); + return ret; +} + +WUFFS_DROP_IN__STB__MAYBE_STATIC int // +stbi_info_from_file( // + FILE* f, // + int* x, // + int* y, // + int* comp) { + wuffs_drop_in__stb__g_failure_reason = NULL; + void* iobuf_ptr = malloc(65536u); + if (!iobuf_ptr) { + wuffs_drop_in__stb__g_failure_reason = "out of memory"; + return 0; + } + wuffs_base__io_buffer srcbuf = + wuffs_base__ptr_u8__writer((uint8_t*)iobuf_ptr, 65536u); + stbi_io_callbacks clbk; + clbk.read = &wuffs_drop_in__stb__file_callbacks__read; + clbk.skip = &wuffs_drop_in__stb__file_callbacks__skip; + clbk.eof = &wuffs_drop_in__stb__file_callbacks__eof; + wuffs_drop_in__stb__load0(&srcbuf, &clbk, f, x, y, comp, 1, 1); + free(iobuf_ptr); + return wuffs_drop_in__stb__g_failure_reason == NULL; +} + +WUFFS_DROP_IN__STB__MAYBE_STATIC stbi_uc* // +stbi_load_from_file( // + FILE* f, // + int* x, // + int* y, // + int* channels_in_file, // + int desired_channels) { + wuffs_drop_in__stb__g_failure_reason = NULL; + void* iobuf_ptr = malloc(65536u); + if (!iobuf_ptr) { + wuffs_drop_in__stb__g_failure_reason = "out of memory"; + return NULL; + } + wuffs_base__io_buffer srcbuf = + wuffs_base__ptr_u8__writer((uint8_t*)iobuf_ptr, 65536u); + stbi_io_callbacks clbk; + clbk.read = &wuffs_drop_in__stb__file_callbacks__read; + clbk.skip = &wuffs_drop_in__stb__file_callbacks__skip; + clbk.eof = &wuffs_drop_in__stb__file_callbacks__eof; + stbi_uc* ret = wuffs_drop_in__stb__load0( + &srcbuf, &clbk, f, x, y, channels_in_file, desired_channels, 0); + free(iobuf_ptr); + return ret; +} + +#endif // !defined(STBI_NO_STDIO) + +// -------- + +#ifdef __cplusplus +} // extern "C" +#endif + +#endif // defined (WUFFS_CONFIG__ENABLE_DROP_IN_REPLACEMENT__STB) #endif // WUFFS_IMPLEMENTATION #if defined(__GNUC__) diff --git a/include/mango/core/system.hpp b/include/mango/core/system.hpp index 99b11fd7..77027f5d 100644 --- a/include/mango/core/system.hpp +++ b/include/mango/core/system.hpp @@ -97,6 +97,7 @@ namespace mango bool isEnable(Print target); template + static inline void printLine(Print target, T... s) { if (isEnable(target)) @@ -107,6 +108,7 @@ namespace mango } template + static inline void printLine(Print target, int indent, T... s) { if (isEnable(target)) @@ -118,12 +120,14 @@ namespace mango } template + static inline void printLine(T... s) { printLine(Print::Verbose, std::forward(s)...); } template + static inline void printLine(int indent, T... s) { printLine(Print::Verbose, indent, std::forward(s)...); diff --git a/include/mango/core/thread.hpp b/include/mango/core/thread.hpp index 6c1231e2..b58cc990 100644 --- a/include/mango/core/thread.hpp +++ b/include/mango/core/thread.hpp @@ -196,7 +196,7 @@ namespace mango template void enqueue(F&& f, Args&&... args) { - std::unique_lock lock(m_queue_mutex); + std::lock_guard lock(m_queue_mutex); m_task_queue.emplace_back(f, (args)...); ++m_task_counter; m_task_condition.notify_one(); diff --git a/include/mango/core/timer.hpp b/include/mango/core/timer.hpp index dccb10da..cfe897b1 100644 --- a/include/mango/core/timer.hpp +++ b/include/mango/core/timer.hpp @@ -63,6 +63,13 @@ namespace mango static u64 ns(); }; + struct Sleep + { + static void ms(s32 count); + static void us(s32 count); + static void ns(s32 count); + }; + struct LocalTime { u16 year; // [....] diff --git a/include/mango/image/decoder.hpp b/include/mango/image/decoder.hpp index 03108890..2c5cf183 100644 --- a/include/mango/image/decoder.hpp +++ b/include/mango/image/decoder.hpp @@ -5,6 +5,10 @@ #pragma once #include +#include +#include +#include +#include #include #include #include @@ -59,7 +63,7 @@ namespace mango::image struct ImageDecodeStatus : Status { - bool direct = false; + bool direct = false; // decoding doesn't use temporary storage // animation information // NOTE: we would love to simply return number of animation frames in the ImageHeader @@ -82,19 +86,33 @@ namespace mango::image bool simd = true; bool multithread = true; - bool icc = false; // apply ICC profile }; - class ImageDecoderInterface : protected NonCopyable + struct ImageDecodeRect + { + int x; + int y; + int width; + int height; + float progress; + }; + + using ImageDecodeCallback = std::function; + using ImageDecodeFuture = std::future; + + class ImageDecodeInterface : protected NonCopyable { public: + bool async = false; + ImageDecodeCallback callback; + std::atomic cancelled { false }; std::string name; ImageHeader header; ConstMemory icc; ConstMemory exif; - ImageDecoderInterface() = default; - virtual ~ImageDecoderInterface() = default; + ImageDecodeInterface() = default; + virtual ~ImageDecodeInterface() = default; virtual ImageDecodeStatus decode(const Surface& dest, const ImageDecodeOptions& options, int level, int depth, int face) = 0; virtual ConstMemory memory(int level, int depth, int face); @@ -107,20 +125,24 @@ namespace mango::image ~ImageDecoder(); bool isDecoder() const; + bool isAsyncDecoder() const; + ImageHeader header(); ImageDecodeStatus decode(const Surface& dest, const ImageDecodeOptions& options = ImageDecodeOptions(), int level = 0, int depth = 0, int face = 0); + ImageDecodeFuture launch(ImageDecodeCallback callback, const Surface& dest, const ImageDecodeOptions& options = ImageDecodeOptions(), int level = 0, int depth = 0, int face = 0); + void cancel(); ConstMemory memory(int level, int depth, int face); ConstMemory icc(); ConstMemory exif(); - using CreateDecoderFunc = ImageDecoderInterface* (*)(ConstMemory memory); + using CreateDecodeFunc = ImageDecodeInterface* (*)(ConstMemory memory); protected: - std::unique_ptr m_interface; + std::shared_ptr m_interface; }; - void registerImageDecoder(ImageDecoder::CreateDecoderFunc func, const std::string& extension); + void registerImageDecoder(ImageDecoder::CreateDecodeFunc func, const std::string& extension); bool isImageDecoder(const std::string& extension); } // namespace mango::image diff --git a/include/mango/image/surface.hpp b/include/mango/image/surface.hpp index 2c3e41ff..e35ec424 100644 --- a/include/mango/image/surface.hpp +++ b/include/mango/image/surface.hpp @@ -61,6 +61,7 @@ namespace mango::image public: Bitmap(int width, int height, const Format& format, size_t stride = 0); Bitmap(const Surface& source, const Format& format); + Bitmap(const ImageHeader& header); Bitmap(ConstMemory memory, const std::string& extension, const ImageDecodeOptions& options = ImageDecodeOptions()); Bitmap(ConstMemory memory, const std::string& extension, const Format& format, const ImageDecodeOptions& options = ImageDecodeOptions()); @@ -93,7 +94,8 @@ namespace mango::image LuminanceBitmap(const Surface& source, bool alpha = false, bool force_linear = true); }; - // HACK: need a proper API (32 bit rgba in-place conversion) + // NOTE: These must be 32 bit RGBA surfaces as the conversion is done in-place + void transform(const Surface& surface, ConstMemory icc); void srgbToLinear(const Surface& surface); void linearToSRGB(const Surface& surface); diff --git a/source/mango/core/compress.cpp b/source/mango/core/compress.cpp index 192d99c3..2156c701 100644 --- a/source/mango/core/compress.cpp +++ b/source/mango/core/compress.cpp @@ -1308,6 +1308,8 @@ namespace isal CompressionStatus status; int s = isal_deflate_stateless(&stream); + + const char* error = nullptr; switch (s) { case COMP_OK: @@ -1315,14 +1317,27 @@ namespace isal break; case INVALID_FLUSH: + error = "INVALID_FLUSH."; + break; case ISAL_INVALID_LEVEL: + error = "ISAL_INVALID_LEVEL."; + break; case ISAL_INVALID_LEVEL_BUF: + error = "ISAL_INVALID_LEVEL_BUF."; + break; case STATELESS_OVERFLOW: + error = "STATELESS_OVERFLOW."; + break; default: - status.setError("[isal] compression failed."); + error = "UNDEFINED."; break; } + if (error) + { + status.setError(error); + } + return status; } @@ -1340,6 +1355,8 @@ namespace isal CompressionStatus status; int s = isal_inflate_stateless(&state); + + const char* error = nullptr; switch (s) { case ISAL_DECOMP_OK: @@ -1347,19 +1364,42 @@ namespace isal break; case ISAL_END_INPUT: + error = "ISAL_END_INPUT."; + break; case ISAL_NEED_DICT: + error = "ISAL_NEED_DICT."; + break; case ISAL_OUT_OVERFLOW: + error = "ISAL_OUT_OVERFLOW."; + break; case ISAL_INVALID_BLOCK: + error = "ISAL_INVALID_BLOCK."; + break; case ISAL_INVALID_SYMBOL: + error = "ISAL_INVALID_SYMBOL."; + break; case ISAL_INVALID_LOOKBACK: + error = "ISAL_INVALID_LOOKBACK."; + break; case ISAL_INVALID_WRAPPER: + error = "ISAL_INVALID_WRAPPER."; + break; case ISAL_UNSUPPORTED_METHOD: + error = "ISAL_UNSUPPORTED_METHOD."; + break; case ISAL_INCORRECT_CHECKSUM: + error = "ISAL_INCORRECT_CHECKSUM."; + break; default: - status.setError("[isal] compression failed."); + error = "UNDEFINED."; break; } + if (error) + { + status.setError(error); + } + return status; } diff --git a/source/mango/core/system.cpp b/source/mango/core/system.cpp index d56e9607..2fad5cce 100644 --- a/source/mango/core/system.cpp +++ b/source/mango/core/system.cpp @@ -344,7 +344,7 @@ namespace mango : tid(getThreadID()) , name(name) { - std::unique_lock lock(g_context.tracer.mutex); + std::lock_guard lock(g_context.tracer.mutex); g_context.tracer.threads.push_back(*this); } @@ -378,7 +378,7 @@ namespace mango void Tracer::start(Stream* stream) { - std::unique_lock lock(mutex); + std::lock_guard lock(mutex); if (output) { @@ -400,7 +400,7 @@ namespace mango void Tracer::stop() { - std::unique_lock lock(mutex); + std::lock_guard lock(mutex); if (!output) { @@ -440,7 +440,7 @@ namespace mango void Tracer::append(const Trace& trace) { - std::unique_lock lock(mutex); + std::lock_guard lock(mutex); if (output) { traces.push_back(trace.data); diff --git a/source/mango/core/thread.cpp b/source/mango/core/thread.cpp index 6f1f8b4f..2eb62c22 100644 --- a/source/mango/core/thread.cpp +++ b/source/mango/core/thread.cpp @@ -201,12 +201,12 @@ namespace mango { auto time1 = high_resolution_clock::now(); auto elapsed = time1 - time0; - if (elapsed >= milliseconds(120)) + if (elapsed >= milliseconds(60)) { std::unique_lock lock(m_queue_mutex); - m_condition.wait_for(lock, milliseconds(120)); + m_condition.wait_for(lock, milliseconds(60)); } - else if (elapsed >= microseconds(3)) + else if (elapsed >= microseconds(24)) { std::this_thread::yield(); } @@ -289,24 +289,32 @@ namespace mango : m_pool(ThreadPool::getInstance()) , m_queue(&m_pool, "") { + // wake up one thread to be available instantly + m_pool.m_condition.notify_one(); } ConcurrentQueue::ConcurrentQueue(const std::string& name) : m_pool(ThreadPool::getInstance()) , m_queue(&m_pool, name) { + // wake up one thread to be available instantly + m_pool.m_condition.notify_one(); } ConcurrentQueue::ConcurrentQueue(ThreadPool& pool) : m_pool(pool) , m_queue(&m_pool, "") { + // wake up one thread to be available instantly + m_pool.m_condition.notify_one(); } ConcurrentQueue::ConcurrentQueue(ThreadPool& pool, const std::string& name) : m_pool(pool) , m_queue(&m_pool, name) { + // wake up one thread to be available instantly + m_pool.m_condition.notify_one(); } ConcurrentQueue::~ConcurrentQueue() @@ -374,7 +382,7 @@ namespace mango task(); - std::unique_lock wait_lock(m_wait_mutex); + std::lock_guard wait_lock(m_wait_mutex); --m_task_counter; } else @@ -387,7 +395,7 @@ namespace mango void SerialQueue::cancel() { - std::unique_lock queue_lock(m_queue_mutex); + std::lock_guard queue_lock(m_queue_mutex); m_task_counter -= u32(m_task_queue.size()); m_task_queue.clear(); } @@ -486,7 +494,7 @@ namespace mango task->func(); } - std::unique_lock wait_lock(m_wait_mutex); + std::lock_guard wait_lock(m_wait_mutex); if (!--m_ticket_counter) { m_wait_condition.notify_one(); @@ -500,7 +508,7 @@ namespace mango TicketQueue::Ticket TicketQueue::acquire() { - std::unique_lock wait_lock(m_wait_mutex); + std::lock_guard wait_lock(m_wait_mutex); ++m_ticket_counter; Ticket ticket; m_queue->tasks.enqueue(ticket.task); diff --git a/source/mango/core/timer.cpp b/source/mango/core/timer.cpp index 22f9e935..93fca0e7 100644 --- a/source/mango/core/timer.cpp +++ b/source/mango/core/timer.cpp @@ -24,6 +24,21 @@ namespace mango return getSystemContext().timer.ns(); } + void Sleep::ms(s32 count) + { + std::this_thread::sleep_for(std::chrono::milliseconds(count)); + } + + void Sleep::us(s32 count) + { + std::this_thread::sleep_for(std::chrono::microseconds(count)); + } + + void Sleep::ns(s32 count) + { + std::this_thread::sleep_for(std::chrono::nanoseconds(count)); + } + LocalTime getLocalTime() { std::time_t t = std::time(nullptr); diff --git a/source/mango/filesystem/mapper_mgx.cpp b/source/mango/filesystem/mapper_mgx.cpp index 229c8a26..ea99f7b6 100644 --- a/source/mango/filesystem/mapper_mgx.cpp +++ b/source/mango/filesystem/mapper_mgx.cpp @@ -324,7 +324,7 @@ namespace mango::filesystem std::shared_ptr buffer; - std::unique_lock cache_lock(m_cache_mutex); + std::lock_guard cache_lock(m_cache_mutex); auto value = m_cache.get(blockIndex); if (value) diff --git a/source/mango/image/color.cpp b/source/mango/image/color.cpp index d3c27073..f16f145d 100644 --- a/source/mango/image/color.cpp +++ b/source/mango/image/color.cpp @@ -62,25 +62,16 @@ namespace mango::image INTENT_PERCEPTUAL, cmsFLAGS_BLACKPOINTCOMPENSATION); const Format format(32, Format::UNORM, Format::RGBA, 8, 8, 8, 8); + TemporaryBitmap temp(target, format); - if (target.format == format) + for (int y = 0; y < temp.height; ++y) { - for (int y = 0; y < target.height; ++y) - { - u8* image = target.address(0, y); - cmsDoTransform(transform, image, image, target.width); - } + u8* image = temp.address(0, y); + cmsDoTransform(transform, image, image, temp.width); } - else - { - Bitmap temp(target, format); - - for (int y = 0; y < target.height; ++y) - { - u8* image = temp.address(0, y); - cmsDoTransform(transform, image, image, target.width); - } + if (temp.image != target.image) + { target.blit(0, 0, temp); } } diff --git a/source/mango/image/image.cpp b/source/mango/image/image.cpp index 8698fa6c..98323ea9 100644 --- a/source/mango/image/image.cpp +++ b/source/mango/image/image.cpp @@ -140,7 +140,7 @@ namespace mango::image class ImageServer { protected: - std::map m_decoders; + std::map m_decoders; std::map m_encoders; public: @@ -193,7 +193,7 @@ namespace mango::image { } - void registerImageDecoder(ImageDecoder::CreateDecoderFunc func, const std::string& extension) + void registerImageDecoder(ImageDecoder::CreateDecodeFunc func, const std::string& extension) { m_decoders[toLower(extension)] = func; } @@ -203,7 +203,7 @@ namespace mango::image m_encoders[toLower(extension)] = func; } - ImageDecoder::CreateDecoderFunc getImageDecoder(const std::string& extension) const + ImageDecoder::CreateDecodeFunc getImageDecoder(const std::string& extension) const { auto i = m_decoders.find(extension); return i != m_decoders.end() ? i->second : nullptr; @@ -216,7 +216,7 @@ namespace mango::image } } g_imageServer; - void registerImageDecoder(ImageDecoder::CreateDecoderFunc func, const std::string& extension) + void registerImageDecoder(ImageDecoder::CreateDecodeFunc func, const std::string& extension) { g_imageServer.registerImageDecoder(func, extension); } @@ -241,10 +241,10 @@ namespace mango::image } // ---------------------------------------------------------------------------- - // ImageDecoderInterface + // ImageDecodeInterface // ---------------------------------------------------------------------------- - ConstMemory ImageDecoderInterface::memory(int level, int depth, int face) + ConstMemory ImageDecodeInterface::memory(int level, int depth, int face) { MANGO_UNREFERENCED(level); MANGO_UNREFERENCED(depth); @@ -266,10 +266,10 @@ namespace mango::image extension = getLowerCaseExtension(filename); } - ImageDecoder::CreateDecoderFunc create = g_imageServer.getImageDecoder(extension); + ImageDecoder::CreateDecodeFunc create = g_imageServer.getImageDecoder(extension); if (create) { - ImageDecoderInterface* x = create(memory); + ImageDecodeInterface* x = create(memory); x->name = fmt::format("ImageDecoder:{}", filesystem::removePath(filename)); m_interface.reset(x); } @@ -284,6 +284,11 @@ namespace mango::image return m_interface != nullptr; } + bool ImageDecoder::isAsyncDecoder() const + { + return m_interface ? m_interface->async : false; + } + ImageHeader ImageDecoder::header() { ImageHeader header; @@ -294,7 +299,7 @@ namespace mango::image } else { - header.setError("[WARNING] ImageDecoder::header() is not supported for this extension."); + header.setError("[WARNING] header() is not supported for this extension."); } return header; @@ -308,19 +313,66 @@ namespace mango::image { Trace trace("ImageDecoder", m_interface->name); status = m_interface->decode(dest, options, level, depth, face); - if (!status) - { - printLine(Print::Info, status.info); - } } else { - status.setError("[WARNING] ImageDecoder::decode() is not supported for this extension."); + status.setError("[WARNING] decode() is not supported for this extension."); } return status; } + ImageDecodeFuture ImageDecoder::launch(ImageDecodeCallback callback, const Surface& dest, const ImageDecodeOptions& options, int level, int depth, int face) + { + if (m_interface) + { + if (m_interface.use_count() > 1) + { + MANGO_EXCEPTION("[ImageDecoder] async decoding already in progress."); + } + + m_interface->callback = std::move(callback); + } + + return std::async(std::launch::async, [=] (std::shared_ptr interface) + { + ImageDecodeStatus status; + + if (interface) + { + Trace trace("ImageDecoder", interface->name); + status = interface->decode(dest, options, level, depth, face); + + if (!interface->async) + { + ImageDecodeRect rect; + + rect.x = 0; + rect.y = 0; + rect.width = interface->header.width; + rect.height = interface->header.height; + rect.progress = 1.0f; + + interface->callback(rect); + } + } + else + { + status.setError("[WARNING] decode() is not supported for this extension."); + } + + return status; + }, m_interface); + } + + void ImageDecoder::cancel() + { + if (m_interface) + { + m_interface->cancelled = true; + } + } + ConstMemory ImageDecoder::memory(int level, int depth, int face) { ConstMemory memory; diff --git a/source/mango/image/image_astc.cpp b/source/mango/image/image_astc.cpp index c16e7b09..5d1cc9e8 100644 --- a/source/mango/image/image_astc.cpp +++ b/source/mango/image/image_astc.cpp @@ -111,7 +111,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { HeaderASTC m_astc_header; ConstMemory m_data; @@ -164,9 +164,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_atari.cpp b/source/mango/image/image_atari.cpp index 6f709cf7..36aa39f8 100644 --- a/source/mango/image/image_atari.cpp +++ b/source/mango/image/image_atari.cpp @@ -20,7 +20,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { ConstMemory m_memory; @@ -299,9 +299,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceDEGAS(ConstMemory memory) + ImageDecodeInterface* createInterfaceDEGAS(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceDEGAS(memory); + ImageDecodeInterface* x = new InterfaceDEGAS(memory); return x; } @@ -456,9 +456,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceNEO(ConstMemory memory) + ImageDecodeInterface* createInterfaceNEO(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceNEO(memory); + ImageDecodeInterface* x = new InterfaceNEO(memory); return x; } @@ -724,9 +724,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceSPU(ConstMemory memory) + ImageDecodeInterface* createInterfaceSPU(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceSPU(memory); + ImageDecodeInterface* x = new InterfaceSPU(memory); return x; } @@ -1051,9 +1051,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceCA(ConstMemory memory) + ImageDecodeInterface* createInterfaceCA(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceCA(memory); + ImageDecodeInterface* x = new InterfaceCA(memory); return x; } diff --git a/source/mango/image/image_avif.cpp b/source/mango/image/image_avif.cpp index dd09bdc4..9e65a739 100644 --- a/source/mango/image/image_avif.cpp +++ b/source/mango/image/image_avif.cpp @@ -18,7 +18,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { avifDecoder* m_decoder = nullptr; avifRGBImage m_rgb; @@ -163,9 +163,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_bmp.cpp b/source/mango/image/image_bmp.cpp index f4d81c48..8a8c5f16 100644 --- a/source/mango/image/image_bmp.cpp +++ b/source/mango/image/image_bmp.cpp @@ -1171,7 +1171,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { ConstMemory m_memory; FileHeader m_file_header; @@ -1334,9 +1334,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_c64.cpp b/source/mango/image/image_c64.cpp index 5993281c..cde788ea 100644 --- a/source/mango/image/image_c64.cpp +++ b/source/mango/image/image_c64.cpp @@ -442,7 +442,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { ConstMemory m_memory; @@ -539,9 +539,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceMPIC(ConstMemory memory) + ImageDecodeInterface* createInterfaceMPIC(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceMPIC(memory); + ImageDecodeInterface* x = new InterfaceMPIC(memory); return x; } @@ -563,9 +563,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceAFL(ConstMemory memory) + ImageDecodeInterface* createInterfaceAFL(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceAFL(memory); + ImageDecodeInterface* x = new InterfaceAFL(memory); return x; } @@ -617,9 +617,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceAMI(ConstMemory memory) + ImageDecodeInterface* createInterfaceAMI(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceAMI(memory); + ImageDecodeInterface* x = new InterfaceAMI(memory); return x; } @@ -641,9 +641,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceART(ConstMemory memory) + ImageDecodeInterface* createInterfaceART(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceART(memory); + ImageDecodeInterface* x = new InterfaceART(memory); return x; } @@ -665,9 +665,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceA64(ConstMemory memory) + ImageDecodeInterface* createInterfaceA64(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceA64(memory); + ImageDecodeInterface* x = new InterfaceA64(memory); return x; } @@ -689,9 +689,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceBLP(ConstMemory memory) + ImageDecodeInterface* createInterfaceBLP(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceBLP(memory); + ImageDecodeInterface* x = new InterfaceBLP(memory); return x; } @@ -713,9 +713,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceCDU(ConstMemory memory) + ImageDecodeInterface* createInterfaceCDU(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceCDU(memory); + ImageDecodeInterface* x = new InterfaceCDU(memory); return x; } @@ -737,9 +737,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceDOL(ConstMemory memory) + ImageDecodeInterface* createInterfaceDOL(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceDOL(memory); + ImageDecodeInterface* x = new InterfaceDOL(memory); return x; } @@ -761,9 +761,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceDD(ConstMemory memory) + ImageDecodeInterface* createInterfaceDD(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceDD(memory); + ImageDecodeInterface* x = new InterfaceDD(memory); return x; } @@ -837,9 +837,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceDRL(ConstMemory memory) + ImageDecodeInterface* createInterfaceDRL(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceDRL(memory); + ImageDecodeInterface* x = new InterfaceDRL(memory); return x; } @@ -908,9 +908,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceDRZ(ConstMemory memory) + ImageDecodeInterface* createInterfaceDRZ(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceDRZ(memory); + ImageDecodeInterface* x = new InterfaceDRZ(memory); return x; } @@ -974,9 +974,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceECI(ConstMemory memory) + ImageDecodeInterface* createInterfaceECI(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceECI(memory); + ImageDecodeInterface* x = new InterfaceECI(memory); return x; } @@ -998,9 +998,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceFPT(ConstMemory memory) + ImageDecodeInterface* createInterfaceFPT(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceFPT(memory); + ImageDecodeInterface* x = new InterfaceFPT(memory); return x; } @@ -1022,9 +1022,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceFD2(ConstMemory memory) + ImageDecodeInterface* createInterfaceFD2(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceFD2(memory); + ImageDecodeInterface* x = new InterfaceFD2(memory); return x; } @@ -1098,9 +1098,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceFPR(ConstMemory memory) + ImageDecodeInterface* createInterfaceFPR(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceFPR(memory); + ImageDecodeInterface* x = new InterfaceFPR(memory); return x; } @@ -1200,9 +1200,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceFUN(ConstMemory memory) + ImageDecodeInterface* createInterfaceFUN(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceFUN(memory); + ImageDecodeInterface* x = new InterfaceFUN(memory); return x; } @@ -1247,9 +1247,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceGUN(ConstMemory memory) + ImageDecodeInterface* createInterfaceGUN(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceGUN(memory); + ImageDecodeInterface* x = new InterfaceGUN(memory); return x; } @@ -1342,9 +1342,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceHCB(ConstMemory memory) + ImageDecodeInterface* createInterfaceHCB(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceHCB(memory); + ImageDecodeInterface* x = new InterfaceHCB(memory); return x; } @@ -1366,9 +1366,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceHFC(ConstMemory memory) + ImageDecodeInterface* createInterfaceHFC(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceHFC(memory); + ImageDecodeInterface* x = new InterfaceHFC(memory); return x; } @@ -1478,9 +1478,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceHIM(ConstMemory memory) + ImageDecodeInterface* createInterfaceHIM(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceHIM(memory); + ImageDecodeInterface* x = new InterfaceHIM(memory); return x; } @@ -1515,9 +1515,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceKOA(ConstMemory memory) + ImageDecodeInterface* createInterfaceKOA(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceKOA(memory); + ImageDecodeInterface* x = new InterfaceKOA(memory); return x; } @@ -1549,9 +1549,9 @@ namespace } }; - ImageDecoderInterface* createInterfacePMG(ConstMemory memory) + ImageDecodeInterface* createInterfacePMG(ConstMemory memory) { - ImageDecoderInterface* x = new InterfacePMG(memory); + ImageDecodeInterface* x = new InterfacePMG(memory); return x; } @@ -1653,9 +1653,9 @@ namespace } }; - ImageDecoderInterface* createInterfacePP(ConstMemory memory) + ImageDecodeInterface* createInterfacePP(ConstMemory memory) { - ImageDecoderInterface* x = new InterfacePP(memory); + ImageDecodeInterface* x = new InterfacePP(memory); return x; } @@ -1677,9 +1677,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceRPM(ConstMemory memory) + ImageDecodeInterface* createInterfaceRPM(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceRPM(memory); + ImageDecodeInterface* x = new InterfaceRPM(memory); return x; } @@ -1701,9 +1701,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceSAR(ConstMemory memory) + ImageDecodeInterface* createInterfaceSAR(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceSAR(memory); + ImageDecodeInterface* x = new InterfaceSAR(memory); return x; } @@ -1834,9 +1834,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceSHF(ConstMemory memory) + ImageDecodeInterface* createInterfaceSHF(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceSHF(memory); + ImageDecodeInterface* x = new InterfaceSHF(memory); return x; } @@ -1930,9 +1930,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceSHFXL(ConstMemory memory) + ImageDecodeInterface* createInterfaceSHFXL(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceSHFXL(memory); + ImageDecodeInterface* x = new InterfaceSHFXL(memory); return x; } @@ -2116,9 +2116,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceMCI(ConstMemory memory) + ImageDecodeInterface* createInterfaceMCI(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceMCI(memory); + ImageDecodeInterface* x = new InterfaceMCI(memory); return x; } @@ -2258,9 +2258,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceUFLI(ConstMemory memory) + ImageDecodeInterface* createInterfaceUFLI(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceUFLI(memory); + ImageDecodeInterface* x = new InterfaceUFLI(memory); return x; } @@ -2444,9 +2444,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceUIFLI(ConstMemory memory) + ImageDecodeInterface* createInterfaceUIFLI(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceUIFLI(memory); + ImageDecodeInterface* x = new InterfaceUIFLI(memory); return x; } @@ -2468,9 +2468,9 @@ namespace } }; - ImageDecoderInterface* createInterfaceVID(ConstMemory memory) + ImageDecodeInterface* createInterfaceVID(ConstMemory memory) { - ImageDecoderInterface* x = new InterfaceVID(memory); + ImageDecodeInterface* x = new InterfaceVID(memory); return x; } diff --git a/source/mango/image/image_dds.cpp b/source/mango/image/image_dds.cpp index fd2d26b9..9f7d326d 100644 --- a/source/mango/image/image_dds.cpp +++ b/source/mango/image/image_dds.cpp @@ -1148,7 +1148,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { HeaderDDS m_dds_header; @@ -1216,9 +1216,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_exr.cpp b/source/mango/image/image_exr.cpp index 2e89ec3b..cae6dab4 100644 --- a/source/mango/image/image_exr.cpp +++ b/source/mango/image/image_exr.cpp @@ -2828,7 +2828,7 @@ namespace // ImageDecoderEXR // ------------------------------------------------------------ - struct ImageDecoderEXR : ImageDecoderInterface + struct ImageDecoderEXR : ImageDecodeInterface { ContextEXR m_context; @@ -2853,9 +2853,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new ImageDecoderEXR(memory); + ImageDecodeInterface* x = new ImageDecoderEXR(memory); return x; } diff --git a/source/mango/image/image_gif.cpp b/source/mango/image/image_gif.cpp index 9b08f1fb..cc23bfe1 100644 --- a/source/mango/image/image_gif.cpp +++ b/source/mango/image/image_gif.cpp @@ -535,7 +535,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { ConstMemory m_memory; gif_state m_state; @@ -630,9 +630,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_hdr.cpp b/source/mango/image/image_hdr.cpp index 5585523f..576f16f4 100644 --- a/source/mango/image/image_hdr.cpp +++ b/source/mango/image/image_hdr.cpp @@ -1,6 +1,6 @@ /* MANGO Multimedia Development Platform - Copyright (C) 2012-2022 Twilight Finland 3D Oy Ltd. All rights reserved. + Copyright (C) 2012-2024 Twilight Finland 3D Oy Ltd. All rights reserved. */ #include #include @@ -8,6 +8,7 @@ #include #include #include +#include namespace { @@ -210,10 +211,21 @@ namespace int width = 0; int height = 0; - float exposure = 1.0f; bool xflip = false; bool yflip = false; + float exposure = 1.0f; + float gamma = 1.0f; + + struct Chromaticity + { + math::float32x2 red; + math::float32x2 green; + math::float32x2 blue; + math::float32x2 white; + bool enable = false; + } chromaticity; + ImageHeader header; const u8* parse(ConstMemory memory) @@ -222,9 +234,9 @@ namespace const u8* end = memory.end(); std::string_view id = readline(data, end); - if (id != "#?RADIANCE") + if (id != "#?RADIANCE" && id != "#?RGBE") { - header.setError("[ImageDecoder.HDR] Incorrect radiance header."); + header.setError("[ImageDecoder.HDR] Incorrect radiance header ({}).", id); return nullptr; } @@ -259,6 +271,34 @@ namespace exposure = float(std::atof(tokens[1].data())); } + else if (tokens[1] == "GAMMA") + { + if (tokens.size() != 2) + { + header.setError("[ImageDecoder.HDR] Incorrect radiance header (gamma)."); + return nullptr; + } + + gamma = float(std::atof(tokens[1].data())); + } + else if (tokens[1] == "PRIMARIES") + { + if (tokens.size() != 9) + { + header.setError("[ImageDecoder.HDR] Incorrect radiance header (primaries)."); + return nullptr; + } + + chromaticity.red.x = float(std::atof(tokens[1].data())); + chromaticity.red.y = float(std::atof(tokens[2].data())); + chromaticity.green.x = float(std::atof(tokens[3].data())); + chromaticity.green.y = float(std::atof(tokens[4].data())); + chromaticity.blue.x = float(std::atof(tokens[5].data())); + chromaticity.blue.y = float(std::atof(tokens[6].data())); + chromaticity.white.x = float(std::atof(tokens[7].data())); + chromaticity.white.y = float(std::atof(tokens[8].data())); + chromaticity.enable = true; + } } if (format == rad_unsupported) @@ -406,7 +446,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { HeaderRAD m_rad_header; const u8* m_data; @@ -458,9 +498,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_heif.cpp b/source/mango/image/image_heif.cpp index 12ea8968..26ea967b 100644 --- a/source/mango/image/image_heif.cpp +++ b/source/mango/image/image_heif.cpp @@ -18,7 +18,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { heif_context* m_context = nullptr; heif_image_handle* m_image_handle = nullptr; @@ -178,9 +178,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_iff.cpp b/source/mango/image/image_iff.cpp index 0ab9fc3d..a4bbacb5 100644 --- a/source/mango/image/image_iff.cpp +++ b/source/mango/image/image_iff.cpp @@ -342,7 +342,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { ConstMemory m_memory; @@ -670,9 +670,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_jp2.cpp b/source/mango/image/image_jp2.cpp index f4f7f3e0..4b6eaa17 100644 --- a/source/mango/image/image_jp2.cpp +++ b/source/mango/image/image_jp2.cpp @@ -636,7 +636,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { ImageProcessFunc m_process_func = nullptr; MemoryStreamReader m_memory_reader; @@ -908,9 +908,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_jpg.cpp b/source/mango/image/image_jpg.cpp index d4554c80..e54704e6 100644 --- a/source/mango/image/image_jpg.cpp +++ b/source/mango/image/image_jpg.cpp @@ -16,13 +16,14 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { jpeg::Parser m_parser; Interface(ConstMemory memory) - : m_parser(memory) + : m_parser(memory, this) { + async = true; header = m_parser.header; icc = m_parser.icc_buffer; exif = m_parser.exif_memory; @@ -43,9 +44,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_jxl.cpp b/source/mango/image/image_jxl.cpp index 6faf4460..06864156 100644 --- a/source/mango/image/image_jxl.cpp +++ b/source/mango/image/image_jxl.cpp @@ -23,7 +23,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { JxlDecoderPtr m_decoder; JxlResizableParallelRunnerPtr m_runner; @@ -221,9 +221,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_ktx.cpp b/source/mango/image/image_ktx.cpp index 60fed180..0bc92ca1 100644 --- a/source/mango/image/image_ktx.cpp +++ b/source/mango/image/image_ktx.cpp @@ -736,7 +736,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { ConstMemory m_memory; HeaderKTX m_ktx_header; @@ -804,9 +804,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_ktx2.cpp b/source/mango/image/image_ktx2.cpp index f0872de6..6ee24143 100644 --- a/source/mango/image/image_ktx2.cpp +++ b/source/mango/image/image_ktx2.cpp @@ -904,7 +904,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { ConstMemory m_memory; @@ -1382,9 +1382,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_pcx.cpp b/source/mango/image/image_pcx.cpp index 1ea542e2..91a9ea06 100644 --- a/source/mango/image/image_pcx.cpp +++ b/source/mango/image/image_pcx.cpp @@ -225,7 +225,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { ConstMemory m_memory; HeaderPCX m_pcx_header; @@ -396,9 +396,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_pic.cpp b/source/mango/image/image_pic.cpp index 022da832..b4632547 100644 --- a/source/mango/image/image_pic.cpp +++ b/source/mango/image/image_pic.cpp @@ -17,7 +17,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { ConstMemory m_data; @@ -251,9 +251,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_pkm.cpp b/source/mango/image/image_pkm.cpp index bc1c6d4f..b2749df3 100644 --- a/source/mango/image/image_pkm.cpp +++ b/source/mango/image/image_pkm.cpp @@ -116,7 +116,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { HeaderPKM m_pkm_header; ConstMemory m_data; @@ -168,9 +168,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_png.cpp b/source/mango/image/image_png.cpp index f39f8b46..a021f806 100644 --- a/source/mango/image/image_png.cpp +++ b/source/mango/image/image_png.cpp @@ -1,6 +1,6 @@ /* MANGO Multimedia Development Platform - Copyright (C) 2012-2022 Twilight Finland 3D Oy Ltd. All rights reserved. + Copyright (C) 2012-2024 Twilight Finland 3D Oy Ltd. All rights reserved. */ #include #include @@ -2006,13 +2006,14 @@ namespace ConstMemory m_memory; ImageHeader m_header; + ImageDecodeInterface* m_interface; + const u8* m_pointer = nullptr; const u8* m_end = nullptr; const char* m_error = nullptr; - Buffer m_compressed; - ColorState m_color_state; + Surface m_decode_target; // IHDR int m_width; @@ -2024,6 +2025,9 @@ namespace int m_channels; + // IDAT + std::vector m_idat; + // CgBI bool m_iphoneOptimized = false; // Apple's proprietary iphone optimized pngcrush @@ -2057,7 +2061,7 @@ namespace // iDOT const u8* m_idot_address = nullptr; - size_t m_idot_offset = 0; + size_t m_idot_index = 0; u32 m_first_half_height = 0; u32 m_second_half_height = 0; @@ -2085,15 +2089,14 @@ namespace void blend_ia8 (u8* dest, const u8* src, int width); void blend_ia16 (u8* dest, const u8* src, int width); - void blend_bgra8 (u8* dest, const u8* src, int width); + void blend_rgba8 (u8* dest, const u8* src, int width); void blend_rgba16 (u8* dest, const u8* src, int width); void blend_indexed (u8* dest, const u8* src, int width); - void deinterlace1to4(u8* output, int width, int height, size_t stride, u8* buffer); - void deinterlace8(u8* output, int width, int height, size_t stride, u8* buffer); + void deinterlace(u8* output, int width, int height, size_t stride, u8* buffer); void filter(u8* buffer, int bytes, int height); - void process_range(u8* image, u8* buffer, size_t stride, int width, const FilterDispatcher& filter, int y0, int y1); - void process(u8* dest, int width, int height, size_t stride, u8* buffer, bool multithread); + void process_range(const Surface& target, u8* buffer, int y0, int y1); + void process_image(const Surface& target, u8* buffer, bool multithread); void blend(Surface& d, Surface& s, Palette* palette); @@ -2109,124 +2112,134 @@ namespace m_header.success = false; } - size_t getImageBufferSize(int width, int height) const; - public: - ParserPNG(ConstMemory memory); - ~ParserPNG(); + ParserPNG(ConstMemory memory, ImageDecodeInterface* interface) + : m_memory(memory) + , m_interface(interface) + , m_end(memory.address + memory.size) + { + BigEndianConstPointer p = memory.address; - const ImageHeader& getHeader(); - ImageDecodeStatus decode(const Surface& dest, bool multithread, bool use_icc, Palette* palette); - ConstMemory icc() const; - }; + // read header magic + const u64 magic = p.read64(); + if (magic != PNG_HEADER_MAGIC) + { + setError("Incorrect header magic."); + return; + } - // ------------------------------------------------------------ - // ParserPNG - // ------------------------------------------------------------ + // read first chunk; in standard it is IHDR, but apple has CgBI+IHDR + u32 size = p.read32(); + u32 id = p.read32(); - ParserPNG::ParserPNG(ConstMemory memory) - : m_memory(memory) - , m_end(memory.address + memory.size) - { - BigEndianConstPointer p = memory.address; + if (id == u32_mask_rev('C', 'g', 'B', 'I')) + { + printLine(Print::Info, "CgBI: reading PNG as iphone optimized"); - // read header magic - const u64 magic = p.read64(); - if (magic != PNG_HEADER_MAGIC) - { - setError("Incorrect header magic."); - return; - } + m_iphoneOptimized = true; + p += size; // skip chunk data + p += sizeof(u32); // skip crc - // read first chunk; in standard it is IHDR, but apple has CgBI+IHDR - u32 size = p.read32(); - u32 id = p.read32(); + // next chunk + size = p.read32(); + id = p.read32(); + } - if (id == u32_mask_rev('C', 'g', 'B', 'I')) - { - printLine(Print::Info, "CgBI: reading PNG as iphone optimized"); + if (id != u32_mask_rev('I', 'H', 'D', 'R')) + { + setError("Incorrect file; the IHDR chunk must come first."); + return; + } - m_iphoneOptimized = true; + read_IHDR(p, size); p += size; // skip chunk data p += sizeof(u32); // skip crc - // next chunk - size = p.read32(); - id = p.read32(); + // keep track of parsing position + m_pointer = p; } - if (id != u32_mask_rev('I', 'H', 'D', 'R')) + ~ParserPNG() { - setError("Incorrect file; the IHDR chunk must come first."); - return; } - read_IHDR(p, size); - p += size; // skip chunk data - p += sizeof(u32); // skip crc + const ImageHeader& getHeader() + { + if (m_header.success) + { + m_header.width = m_width; + m_header.height = m_height; + m_header.depth = 0; + m_header.levels = 0; + m_header.faces = 0; + m_header.palette = false; + m_header.compression = TextureCompression::NONE; + + u16 flags = 0; + + // apple pngcrush premultiplies alpha + if (m_iphoneOptimized) + { + m_header.premultiplied = true; + flags = Format::PREMULT; + } - // keep track of parsing position - m_pointer = p; - } + // force alpha channel on when transparency is enabled + int color_type = m_color_type; + if (m_color_state.transparent_enable && color_type != COLOR_TYPE_PALETTE) + { + color_type |= 4; + } - ParserPNG::~ParserPNG() - { - } + // select decoding format + int bits = m_color_state.bits <= 8 ? 8 : 16; + switch (color_type) + { + case COLOR_TYPE_I: + m_header.format = LuminanceFormat(bits, Format::UNORM, bits, 0, flags); + break; - const ImageHeader& ParserPNG::getHeader() - { - if (m_header.success) - { - m_header.width = m_width; - m_header.height = m_height; - m_header.depth = 0; - m_header.levels = 0; - m_header.faces = 0; - m_header.palette = false; - m_header.compression = TextureCompression::NONE; + case COLOR_TYPE_IA: + m_header.format = LuminanceFormat(bits * 2, Format::UNORM, bits, bits, flags); + break; - u16 flags = 0; + case COLOR_TYPE_PALETTE: + m_header.format = Format(32, Format::UNORM, Format::RGBA, 8, 8, 8, 8, flags); + m_header.palette = true; + break; - // apple pngcrush premultiplies alpha - if (m_iphoneOptimized) - { - m_header.premultiplied = true; - flags = Format::PREMULT; + case COLOR_TYPE_RGB: + case COLOR_TYPE_RGBA: + m_header.format = Format(bits * 4, Format::UNORM, + m_iphoneOptimized ? Format::BGRA : Format::RGBA, + bits, bits, bits, bits, flags); + break; + } } - // force alpha channel on when transparency is enabled - int color_type = m_color_type; - if (m_color_state.transparent_enable && color_type != COLOR_TYPE_PALETTE) - { - color_type |= 4; - } + return m_header; + } - // select decoding format - int bits = m_color_state.bits <= 8 ? 8 : 16; - switch (color_type) - { - case COLOR_TYPE_I: - m_header.format = LuminanceFormat(bits, Format::UNORM, bits, 0, flags); - break; + size_t getInterlacedPassSize(int pass, int width, int height) const + { + size_t bytes = 0; - case COLOR_TYPE_IA: - m_header.format = LuminanceFormat(bits * 2, Format::UNORM, bits, bits, flags); - break; + AdamInterleave adam(pass, width, height); + if (adam.w && adam.h) + { + bytes = (PNG_FILTER_BYTE + getBytesPerLine(adam.w)) * adam.h; + } - case COLOR_TYPE_PALETTE: - m_header.format = Format(32, Format::UNORM, Format::RGBA, 8, 8, 8, 8, flags); - m_header.palette = true; - break; + return bytes; + } - case COLOR_TYPE_RGB: - case COLOR_TYPE_RGBA: - m_header.format = Format(bits * 4, Format::UNORM, m_iphoneOptimized ? Format::BGRA : Format::RGBA, bits, bits, bits, bits, flags); - break; - } + ConstMemory icc() const + { + return m_icc; } - return m_header; - } + ImageDecodeStatus decode(const Surface& dest, bool multithread, Palette* palette); + }; void ParserPNG::read_IHDR(BigEndianConstPointer p, u32 size) { @@ -2341,10 +2354,10 @@ namespace { if (p == m_idot_address) { - m_idot_offset = m_compressed.size(); + m_idot_index = m_idat.size(); } - m_compressed.append(p, size); + m_idat.emplace_back(p, size); } } @@ -2518,7 +2531,8 @@ namespace printLine(Print::Info, " Sequence: {}", sequence_number); MANGO_UNREFERENCED(sequence_number); - m_compressed.append(p, size); + // we can simply treat fdat like idat + m_idat.emplace_back(p, size); } void ParserPNG::read_iCCP(BigEndianConstPointer p, u32 size) @@ -2529,7 +2543,7 @@ namespace Compression method: 1 byte (0=deflate) Compressed profile: n bytes */ - const char* name = (const char*)&p[0]; + const char* name = reinterpret_cast(&p[0]); size_t name_len = png_strnlen(name, size); if (name_len == size) { @@ -2765,7 +2779,7 @@ namespace } } - void ParserPNG::blend_bgra8(u8* dest, const u8* src, int width) + void ParserPNG::blend_rgba8(u8* dest, const u8* src, int width) { for (int x = 0; x < width; ++x) { @@ -2841,7 +2855,7 @@ namespace blend_ia16(dest, src, width); break; case 32: - blend_bgra8(dest, src, width); + blend_rgba8(dest, src, width); break; case 64: blend_rgba16(dest, src, width); @@ -2854,106 +2868,84 @@ namespace } } - size_t ParserPNG::getImageBufferSize(int width, int height) const + void ParserPNG::deinterlace(u8* output, int width, int height, size_t stride, u8* buffer) { - size_t buffer_size = 0; - - if (m_interlace) + if (m_color_state.bits < 8) { - // NOTE: brute-force loop to resolve memory consumption + const int samples = 8 / m_color_state.bits; + const int mask = samples - 1; + const int shift = u32_log2(samples); + const int valueShift = u32_log2(m_color_state.bits); + const int valueMask = (1 << m_color_state.bits) - 1; + for (int pass = 0; pass < 7; ++pass) { AdamInterleave adam(pass, width, height); - if (adam.w && adam.h) - { - buffer_size += (PNG_FILTER_BYTE + getBytesPerLine(adam.w)) * adam.h; - } - } - } - else - { - buffer_size = (PNG_FILTER_BYTE + getBytesPerLine(width)) * height; - } - - return buffer_size; - } - - void ParserPNG::deinterlace1to4(u8* output, int width, int height, size_t stride, u8* buffer) - { - const int samples = 8 / m_color_state.bits; - const int mask = samples - 1; - const int shift = u32_log2(samples); - const int valueShift = u32_log2(m_color_state.bits); - const int valueMask = (1 << m_color_state.bits) - 1; - - for (int pass = 0; pass < 7; ++pass) - { - AdamInterleave adam(pass, width, height); - printLine(Print::Info, " pass: {} ({} x {})", pass, adam.w, adam.h); + printLine(Print::Info, " pass: {} ({} x {})", pass, adam.w, adam.h); - const int bw = PNG_FILTER_BYTE + ((adam.w + mask) >> shift); - filter(buffer, bw, adam.h); + const int bw = PNG_FILTER_BYTE + ((adam.w + mask) >> shift); + filter(buffer, bw, adam.h); - if (adam.w && adam.h) - { - for (int y = 0; y < adam.h; ++y) + if (adam.w && adam.h) { - const int yoffset = (y << adam.yspc) + adam.yorig; - u8* dest = output + yoffset * stride + PNG_FILTER_BYTE; - u8* src = buffer + y * bw + PNG_FILTER_BYTE; - - for (int x = 0; x < adam.w; ++x) + for (int y = 0; y < adam.h; ++y) { - const int xoffset = (x << adam.xspc) + adam.xorig; - u8 v = src[x >> shift]; - int a = (mask - (x & mask)) << valueShift; - int b = (mask - (xoffset & mask)) << valueShift; - v = ((v >> a) & valueMask) << b; - dest[xoffset >> shift] |= v; + const int yoffset = (y << adam.yspc) + adam.yorig; + u8* dest = output + yoffset * stride + PNG_FILTER_BYTE; + u8* src = buffer + y * bw + PNG_FILTER_BYTE; + + for (int x = 0; x < adam.w; ++x) + { + const int xoffset = (x << adam.xspc) + adam.xorig; + u8 v = src[x >> shift]; + int a = (mask - (x & mask)) << valueShift; + int b = (mask - (xoffset & mask)) << valueShift; + v = ((v >> a) & valueMask) << b; + dest[xoffset >> shift] |= v; + } } - } - // next pass - buffer += bw * adam.h; + // next pass + buffer += bw * adam.h; + } } } - } - - void ParserPNG::deinterlace8(u8* output, int width, int height, size_t stride, u8* buffer) - { - const int components = m_channels * (m_color_state.bits / 8); - - for (int pass = 0; pass < 7; ++pass) + else { - AdamInterleave adam(pass, width, height); - printLine(Print::Info, " pass: {} ({} x {})", pass, adam.w, adam.h); - - const int bw = PNG_FILTER_BYTE + adam.w * components; - filter(buffer, bw, adam.h); + const int components = m_channels * (m_color_state.bits / 8); - if (adam.w && adam.h) + for (int pass = 0; pass < 7; ++pass) { - const int ps = adam.w * components + PNG_FILTER_BYTE; + AdamInterleave adam(pass, width, height); + printLine(Print::Info, " pass: {} ({} x {})", pass, adam.w, adam.h); - for (int y = 0; y < adam.h; ++y) - { - const int yoffset = (y << adam.yspc) + adam.yorig; - u8* dest = output + yoffset * stride + PNG_FILTER_BYTE; - u8* src = buffer + y * ps + PNG_FILTER_BYTE; + const int bw = PNG_FILTER_BYTE + adam.w * components; + filter(buffer, bw, adam.h); - dest += adam.xorig * components; - const int xmax = (adam.w * components) << adam.xspc; - const int xstep = components << adam.xspc; + if (adam.w && adam.h) + { + const int ps = adam.w * components + PNG_FILTER_BYTE; - for (int x = 0; x < xmax; x += xstep) + for (int y = 0; y < adam.h; ++y) { - std::memcpy(dest + x, src, components); - src += components; + const int yoffset = (y << adam.yspc) + adam.yorig; + u8* dest = output + yoffset * stride + PNG_FILTER_BYTE; + u8* src = buffer + y * ps + PNG_FILTER_BYTE; + + dest += adam.xorig * components; + const int xmax = (adam.w * components) << adam.xspc; + const int xstep = components << adam.xspc; + + for (int x = 0; x < xmax; x += xstep) + { + std::memcpy(dest + x, src, components); + src += components; + } } - } - // next pass - buffer += bw * adam.h; + // next pass + buffer += bw * adam.h; + } } } } @@ -2978,13 +2970,15 @@ namespace } } - void ParserPNG::process_range(u8* image, u8* buffer, size_t stride, int width, const FilterDispatcher& filter, int y0, int y1) + void ParserPNG::process_range(const Surface& target, u8* buffer, int y0, int y1) { - const size_t bytes_per_line = getBytesPerLine(width) + PNG_FILTER_BYTE; + const int bpp = (m_color_state.bits < 8) ? 1 : m_channels * m_color_state.bits / 8; + FilterDispatcher filter(bpp); + + const size_t bytes_per_line = getBytesPerLine(target.width) + PNG_FILTER_BYTE; ColorState::Function convert = getColorFunction(m_color_state, m_color_type, m_color_state.bits); - buffer += y0 * bytes_per_line; - image += y0 * stride; + u8* image = target.image + y0 * target.stride; for (int y = y0; y < y1; ++y) { @@ -2992,48 +2986,82 @@ namespace filter(buffer, buffer - bytes_per_line, int(bytes_per_line)); // color conversion - convert(m_color_state, width, image, buffer + PNG_FILTER_BYTE); + convert(m_color_state, target.width, image, buffer + PNG_FILTER_BYTE); buffer += bytes_per_line; - image += stride; + image += target.stride; + } + + ImageDecodeRect rect; + + rect.x = 0; + rect.y = y0; + rect.width = target.width; + rect.height = y1 - y0; + rect.progress = float(rect.height) / target.height; + + if (m_decode_target.image != target.image) + { + u8* image = target.image + y0 * target.stride; + Surface source(rect.width, rect.height, target.format, target.stride, image); + m_decode_target.blit(rect.x, rect.y, source); + } + + if (m_interface->callback) + { + m_interface->callback(rect); } } - void ParserPNG::process(u8* image, int width, int height, size_t stride, u8* buffer, bool multithread) + void ParserPNG::process_image(const Surface& target, u8* buffer, bool multithread) { if (m_error) { return; } - const size_t bytes_per_line = getBytesPerLine(width) + PNG_FILTER_BYTE; + u8* image = target.image; + + const size_t bytes_per_line = getBytesPerLine(target.width) + PNG_FILTER_BYTE; ColorState::Function convert = getColorFunction(m_color_state, m_color_type, m_color_state.bits); if (m_interlace) { - Buffer temp(height * bytes_per_line, 0); + Buffer temp(target.height * bytes_per_line, 0); // deinterlace does filter for each pass - if (m_color_state.bits < 8) - { - deinterlace1to4(temp, width, height, bytes_per_line, buffer); - } - else - { - deinterlace8(temp, width, height, bytes_per_line, buffer); - } + deinterlace(temp, target.width, target.height, bytes_per_line, buffer); // use de-interlaced temp buffer as processing source buffer = temp; // color conversion - for (int y = 0; y < height; ++y) + for (int y = 0; y < target.height; ++y) { - convert(m_color_state, width, image, buffer + PNG_FILTER_BYTE); - image += stride; + convert(m_color_state, target.width, image, buffer + PNG_FILTER_BYTE); + image += target.stride; buffer += bytes_per_line; } + + ImageDecodeRect rect; + + rect.x = 0; + rect.y = 0; + rect.width = target.width; + rect.height = target.height; + rect.progress = 1.0f; + + if (m_decode_target.image != target.image) + { + Surface source(rect.width, rect.height, target.format, target.stride, target.image); + m_decode_target.blit(rect.x, rect.y, source); + } + + if (m_interface->callback) + { + m_interface->callback(rect); + } } else { @@ -3041,15 +3069,13 @@ namespace if (bpp > 8) return; - FilterDispatcher filter(bpp); - int y0 = 0; if (multithread) { ConcurrentQueue q("png:process"); - for (int y = 0; y < height; ++y) + for (int y = 0; y < target.height; ++y) { u8 f = buffer[bytes_per_line * y]; // extract filter byte if (f <= 1) @@ -3060,7 +3086,7 @@ namespace // enqueue current range q.enqueue([=] () { - process_range(image, buffer, stride, width, filter, y0, y); + process_range(target, buffer + bytes_per_line * y0, y0, y); }); // start a new range @@ -3074,19 +3100,20 @@ namespace } } - process_range(image, buffer, stride, width, filter, y0, height); + process_range(target, buffer + bytes_per_line * y0, y0, target.height); } } - ImageDecodeStatus ParserPNG::decode(const Surface& dest, bool multithread, bool use_icc, Palette* ptr_palette) + ImageDecodeStatus ParserPNG::decode(const Surface& dest, bool multithread, Palette* ptr_palette) { ImageDecodeStatus status; - m_compressed.reset(); + m_idat.clear(); + m_idot_index = 0; parse(); - if (!m_compressed.size() && m_parallel_segments.empty()) + if (m_idat.empty() && m_parallel_segments.empty()) { status.setError("No compressed data."); return status; @@ -3098,36 +3125,42 @@ namespace return status; } - if (ptr_palette) + if (m_header.palette) { - // caller requests palette; give it and decode u8 indices - *ptr_palette = m_palette; - m_color_state.palette = nullptr; - } - else - { - // caller doesn't want palette; lookup RGBA colors from palette - m_color_state.palette = m_palette.color; + if (ptr_palette) + { + if (dest.format.isIndexed()) + { + status.setError("Decoding target must be indexed."); + return status; + } + + // caller requests palette; give it and decode u8 indices + *ptr_palette = m_palette; + m_color_state.palette = nullptr; + } + else + { + // caller doesn't want palette; lookup RGBA colors from palette + m_color_state.palette = m_palette.color; + } } - // default: main image from "IHDR" chunk - int width = m_width; - int height = m_height; - size_t stride = dest.stride; - u8* image = dest.image; + // default decoding target + Surface target(dest); + m_decode_target = dest; - std::unique_ptr framebuffer; + status.direct = target.width >= m_width && + target.height >= m_height && + target.format == m_header.format; + + std::unique_ptr temp; - // override with animation frame if (m_number_of_frames > 0) { - width = m_frame.width; - height = m_frame.height; - stride = width * dest.format.bytes(); - - // decode frame into temporary buffer (for composition) - image = new u8[stride * height]; - framebuffer.reset(image); + temp = std::make_unique(m_frame.width, m_frame.height, m_header.format); + target = *temp; + m_decode_target = *temp; // compute frame indices (for external users) m_current_frame_index = m_next_frame_index++; @@ -3136,22 +3169,28 @@ namespace m_next_frame_index = 0; } } + else + { + if (!status.direct) + { + temp = std::make_unique(m_width, m_height, m_header.format); + target = *temp; + } + } - const size_t bytes_per_line = getBytesPerLine(width) + PNG_FILTER_BYTE; - const size_t buffer_size = getImageBufferSize(width, height); - - // allocate output buffer - Buffer temp(bytes_per_line + buffer_size + PNG_SIMD_PADDING); - printLine(Print::Info, " buffer bytes: {}", buffer_size); + Buffer buffer; - // zero scanline for filters at the beginning - std::memset(temp, 0, bytes_per_line); + if (m_interface->cancelled) + { + return status; + } - Memory buffer(temp + bytes_per_line, buffer_size); + const size_t bytes_per_line = getBytesPerLine(target.width) + PNG_FILTER_BYTE; - bool is_inline_process = false; + // The first scanline of segment does not require previous scanline from other segment + bool plld = m_parallel_height && (m_parallel_flags & 1) != 0; - if (m_parallel_height) + if (plld) { // ---------------------------------------------------------------------- // pLLD decoding @@ -3159,50 +3198,64 @@ namespace ConcurrentQueue q("png:decode"); - const int bpp = (m_color_state.bits < 8) ? 1 : m_channels * m_color_state.bits / 8; - - if ((m_parallel_flags & 1) && !m_interlace && bpp <= 8) - { - is_inline_process = true; - } - u32 y = 0; - auto decompress = deflate_zlib::decompress; -#ifdef MANGO_ENABLE_ISAL__disabled // faster but decoding failures :( - auto compressor = getCompressor(Compressor::ISAL); - decompress = compressor.decompress; + // skip zlib header + size_t first = 2; + +#ifdef MANGO_ENABLE_ISAL__disabled_the_deflate_is_slightly_faster + auto decompress = getCompressor(Compressor::ISAL).decompress; +#else + auto decompress = getCompressor(Compressor::DEFLATE).decompress; #endif for (ConstMemory memory : m_parallel_segments) { - int h = std::min(m_parallel_height, m_height - y); + if (m_interface->cancelled) + { + q.cancel(); + break; + } + + memory = memory.slice(first, memory.size - first); + first = 0; - Memory output; - output.address = buffer.address + bytes_per_line * y; - output.size = bytes_per_line * h; + int h = std::min(m_parallel_height, m_height - y); q.enqueue([=] { - CompressionStatus result = decompress(output, memory); + if (m_interface->cancelled) + { + return; + } + + const size_t extra = bytes_per_line + PNG_SIMD_PADDING; + Buffer temp(bytes_per_line * h + extra); + + // zero scanline for filters at the beginning + std::memset(temp, 0, bytes_per_line); + + Memory buffer = temp; + buffer.address += bytes_per_line; + buffer.size -= bytes_per_line; + + CompressionStatus result = decompress(buffer, memory); if (!result) { - // NOTE: libdeflate will report "Bad Data", zlib works but slower - //printLine(Print::Error, " {}", result.info); + // NOTE: decompressors complain here that out of data + //printLine(Print::Error, " {} y: {}", result.info, y); } - if (is_inline_process) + if (m_interface->cancelled) { - FilterDispatcher filter(bpp); - process_range(image, buffer, stride, width, filter, y, y + h); + return; } + + process_range(target, buffer, y, y + h); }); - decompress = deflate::decompress; y += m_parallel_height; } - - q.wait(); } else if (m_idot_address && multithread) { @@ -3210,47 +3263,88 @@ namespace // Apple iDOT decoding // ---------------------------------------------------------------------- + size_t buffer_size = 0; + + if (m_interlace) + { + for (int pass = 0; pass < 7; ++pass) + { + buffer_size += getInterlacedPassSize(pass, target.width, target.height); + } + } + else + { + buffer_size = (PNG_FILTER_BYTE + getBytesPerLine(target.width)) * target.height; + } + + printLine(Print::Info, " buffer bytes: {}", buffer_size); + + // allocate output buffer + Buffer temp(bytes_per_line + buffer_size + PNG_SIMD_PADDING); + + // zero scanline for filters at the beginning + std::memset(temp, 0, bytes_per_line); + + Memory buffer(temp + bytes_per_line, buffer_size); + + // ---------------------------------------------------------------------- + + // TODO: decompress IDAT at a time and do updates progressively + Buffer compressed_top; + Buffer compressed_bottom; + + for (size_t i = 0; i < m_idot_index; ++i) + { + compressed_top.append(m_idat[i]); + } + + for (size_t i = m_idot_index; i < m_idat.size(); ++i) + { + compressed_bottom.append(m_idat[i]); + } + + // ---------------------------------------------------------------------- + size_t top_size = bytes_per_line * m_first_half_height; Memory top_buffer; top_buffer.address = buffer.address; top_buffer.size = top_size; - ConstMemory top_memory; - top_memory.address = m_compressed.data(); - top_memory.size = m_idot_offset; - Memory bottom_buffer; bottom_buffer.address = buffer.address + top_size; bottom_buffer.size = buffer.size - top_size; - ConstMemory bottom_memory; - bottom_memory.address = m_compressed.data() + m_idot_offset; - bottom_memory.size = m_compressed.size() - m_idot_offset; + ConstMemory top_memory = compressed_top; + ConstMemory bottom_memory = compressed_bottom; - // enqueue task into the threadpool - FutureTask task([=] () -> size_t + auto future = std::async(std::launch::async, [=] { // Apple uses raw deflate format for iDOT extended IDAT chunks CompressionStatus result = deflate::decompress(bottom_buffer, bottom_memory); return result.size; }); - // Apple uses raw deflate format - // png standard uses zlib frame format - auto decompress = m_iphoneOptimized ? - deflate::decompress : - deflate_zlib::decompress; + if (!m_iphoneOptimized) + { + // skip zlib header + top_memory = top_memory.slice(2, top_memory.size - 2); + } + + auto decompress = deflate::decompress; CompressionStatus result = decompress(top_buffer, top_memory); size_t bytes_out_top = result.size; - size_t bytes_out_bottom = task.get(); // synchronize + size_t bytes_out_bottom = future.get(); printLine(Print::Info, " output top bytes: {}", bytes_out_top); printLine(Print::Info, " output bottom bytes: {}", bytes_out_bottom); MANGO_UNREFERENCED(bytes_out_top); MANGO_UNREFERENCED(bytes_out_bottom); + + // process image + process_image(target, buffer, multithread); } else { @@ -3258,42 +3352,289 @@ namespace // Default decoding // ---------------------------------------------------------------------- - // Apple uses raw deflate format - // png standard uses zlib frame format - auto decompress = m_iphoneOptimized ? - deflate::decompress : - deflate_zlib::decompress; + size_t buffer_size = 0; - CompressionStatus result = decompress(buffer, m_compressed); - if (!result) + if (m_interlace) { - //printLine(Print::Info, " {}", result.info); - status.setError(result.info); - return status; + for (int pass = 0; pass < 7; ++pass) + { + buffer_size += getInterlacedPassSize(pass, target.width, target.height); + } + } + else + { + buffer_size = (PNG_FILTER_BYTE + getBytesPerLine(target.width)) * target.height; } - printLine(Print::Info, " output bytes: {}", result.size); - } + printLine(Print::Info, " buffer bytes: {}", buffer_size); - // process image - if (!is_inline_process) - { - process(image, width, height, stride, buffer, multithread); + // allocate output buffer + Buffer temp(bytes_per_line + buffer_size + PNG_SIMD_PADDING); + + // zero scanline for filters at the beginning + std::memset(temp, 0, bytes_per_line); + + Memory buffer(temp + bytes_per_line, buffer_size); + + // ---------------------------------------------------------------------- + + if (m_interface->callback) + { +#ifdef MANGO_ENABLE_ISAL + + inflate_state state; + isal_inflate_init(&state); + + // skip zlib header + size_t first = 2; + + Buffer compressed; + + const size_t lastIndex = m_idat.size() - 1; + const size_t packetSize = 0x20000; + + int y0 = 0; + + for (size_t i = 0; i < m_idat.size(); ++i) + { + compressed.append(m_idat[i]); + + // decompress only when enough data or last IDAT + if (compressed.size() < packetSize && i < lastIndex) + { + continue; + } + + state.next_in = const_cast(compressed.data() + first); + state.avail_in = u32(compressed.size() - first); + first = 0; + + if (m_interface->cancelled) + { + // TODO: cleanup + return status; + } + + state.next_out = buffer.address + state.total_out; + state.avail_out = u32(buffer.size - state.total_out); + + int s = isal_inflate(&state); + + const char* error = nullptr; + switch (s) + { + case ISAL_DECOMP_OK: + break; + case ISAL_END_INPUT: + error = "ISAL_END_INPUT."; + break; + case ISAL_NEED_DICT: + error = "ISAL_NEED_DICT."; + break; + case ISAL_OUT_OVERFLOW: + error = "ISAL_OUT_OVERFLOW."; + break; + case ISAL_INVALID_BLOCK: + error = "ISAL_INVALID_BLOCK."; + break; + case ISAL_INVALID_SYMBOL: + error = "ISAL_INVALID_SYMBOL."; + break; + case ISAL_INVALID_LOOKBACK: + error = "ISAL_INVALID_LOOKBACK."; + break; + case ISAL_INVALID_WRAPPER: + error = "ISAL_INVALID_WRAPPER."; + break; + case ISAL_UNSUPPORTED_METHOD: + error = "ISAL_UNSUPPORTED_METHOD."; + break; + case ISAL_INCORRECT_CHECKSUM: + error = "ISAL_INCORRECT_CHECKSUM."; + break; + default: + error = "UNDEFINED."; + break; + } + + if (error) + { + status.setError(error); + return status; + } + + if (!m_interlace) + { + int y1 = state.total_out / bytes_per_line; + process_range(target, buffer.address + bytes_per_line * y0, y0, y1); + y0 = y1; + } + + compressed.resize(0); + } + + + printLine(Print::Info, " output bytes: {}", state.total_out); + + if (m_interface->cancelled) + { + return status; + } + + // process image + if (m_interlace) + { + process_image(target, buffer, multithread); + } + +#else + + z_stream stream; + + stream.zalloc = Z_NULL; + stream.zfree = Z_NULL; + stream.opaque = Z_NULL; + stream.avail_in = 0; + stream.next_in = Z_NULL; + + int ret = inflateInit(&stream); + if (ret != Z_OK) + { + status.setError("inflateInit failed."); + return status; + } + + Buffer compressed; + + const size_t lastIndex = m_idat.size() - 1; + const size_t packetSize = 0x20000; + + int y0 = 0; + + for (size_t i = 0; i < m_idat.size(); ++i) + { + compressed.append(m_idat[i]); + + // decompress only when enough data or last IDAT + if (compressed.size() < packetSize && i < lastIndex) + { + continue; + } + + stream.avail_in = uInt(compressed.size()); + stream.next_in = const_cast(compressed.data()); + + if (m_interface->cancelled) + { + ret = inflateEnd(&stream); + return status; + } + + do + { + stream.avail_out = uInt(buffer.size - stream.total_out); + stream.next_out = buffer.address + stream.total_out; + + ret = inflate(&stream, Z_NO_FLUSH); + if (ret == Z_STREAM_ERROR || ret == Z_DATA_ERROR || ret == Z_MEM_ERROR) + { + inflateEnd(&stream); + status.setError("inflate failed."); + return status; + } + } + while (stream.avail_in > 0); + + if (!m_interlace) + { + int y1 = int(stream.total_out / bytes_per_line); + process_range(target, buffer.address + bytes_per_line * y0, y0, y1); + y0 = y1; + } + + compressed.resize(0); + } + + ret = inflateEnd(&stream); + if (ret != Z_OK && ret != Z_STREAM_END) + { + status.setError("inflateEnd failed."); + return status; + } + + printLine(Print::Info, " output bytes: {}", stream.total_out); + + if (m_interface->cancelled) + { + return status; + } + + // process image + if (m_interlace) + { + process_image(target, buffer, multithread); + } +#endif + } + else + { + Buffer compressed; + + for (auto data : m_idat) + { + compressed.append(data); + } + + if (m_interface->cancelled) + { + return status; + } + + ConstMemory memory = compressed; + + if (!m_iphoneOptimized) + { + // skip zlib header + memory = memory.slice(2, memory.size - 2); + } + + auto decompress = deflate::decompress; + + CompressionStatus result = decompress(buffer, memory); + if (!result) + { + //printLine(Print::Info, " {}", result.info); + status.setError(result.info); + return status; + } + + printLine(Print::Info, " output bytes: {}", result.size); + + if (m_interface->cancelled) + { + return status; + } + + // process image + process_image(target, buffer, multithread); + } } - if (m_icc.size() > 0 && use_icc) + if (m_interface->cancelled) { - image::ColorManager manager; - image::ColorProfile profile = manager.create(ConstMemory(m_icc.data(), m_icc.size())); - image::ColorProfile display = manager.createSRGB(); - manager.transform(dest, display, profile); + return status; } if (m_number_of_frames > 0) { - Surface d(dest, m_frame.xoffset, m_frame.yoffset, width, height); - Surface s(width, height, dest.format, stride, image); - blend(d, s, ptr_palette); + Surface area(dest, m_frame.xoffset, m_frame.yoffset, m_frame.width, m_frame.height); + TemporaryBitmap bitmap(area, m_header.format); + blend(bitmap, *temp, ptr_palette); + + if (dest.format != bitmap.format) + { + dest.blit(m_frame.xoffset, m_frame.yoffset, bitmap); + } } status.current_frame_index = m_current_frame_index; @@ -3302,11 +3643,6 @@ namespace return status; } - ConstMemory ParserPNG::icc() const - { - return m_icc; - } - // ------------------------------------------------------------ // write_png() // ------------------------------------------------------------ @@ -3809,7 +4145,11 @@ namespace if (encoding_failure) { +#ifdef MANGO_ENABLE_ISAL + status.setError("ISAL encoding failure."); +#else status.setError("ZLib encoding failure."); +#endif } } @@ -3881,13 +4221,14 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { ParserPNG m_parser; Interface(ConstMemory memory) - : m_parser(memory) + : m_parser(memory, this) { + async = true; header = m_parser.getHeader(); icc = m_parser.icc(); } @@ -3910,42 +4251,22 @@ namespace return status; } - bool direct = dest.format == header.format && - dest.width >= header.width && - dest.height >= header.height && - options.palette == nullptr; - - if (direct) + if (options.palette && header.palette) { - // direct decoding - status = m_parser.decode(dest, options.multithread, options.icc, nullptr); + status = m_parser.decode(dest, options.multithread, nullptr); } else { - if (options.palette && header.palette) - { - // direct decoding with palette - status = m_parser.decode(dest, options.multithread, options.icc, options.palette); - direct = true; - } - else - { - // indirect - Bitmap temp(header.width, header.height, header.format); - status = m_parser.decode(temp, options.multithread, options.icc, nullptr); - dest.blit(0, 0, temp); - } + status = m_parser.decode(dest, options.multithread, options.palette); } - status.direct = direct; - return status; } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_pnm.cpp b/source/mango/image/image_pnm.cpp index ee3e17f9..4e4dfe3c 100644 --- a/source/mango/image/image_pnm.cpp +++ b/source/mango/image/image_pnm.cpp @@ -362,7 +362,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { ConstMemory m_memory; HeaderPNM m_pnm_header; @@ -532,9 +532,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_psd.cpp b/source/mango/image/image_psd.cpp index b537e7db..0809f798 100644 --- a/source/mango/image/image_psd.cpp +++ b/source/mango/image/image_psd.cpp @@ -132,7 +132,7 @@ namespace } }; - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { ConstMemory m_memory; @@ -742,9 +742,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_pvr.cpp b/source/mango/image/image_pvr.cpp index d34fcb1f..87400e87 100644 --- a/source/mango/image/image_pvr.cpp +++ b/source/mango/image/image_pvr.cpp @@ -593,7 +593,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { ConstMemory m_memory; HeaderPVR m_pvr_header; @@ -650,9 +650,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_qoi.cpp b/source/mango/image/image_qoi.cpp index 98eaef6a..da6b2156 100644 --- a/source/mango/image/image_qoi.cpp +++ b/source/mango/image/image_qoi.cpp @@ -252,7 +252,7 @@ namespace // ImageDecoderQOI // ------------------------------------------------------------ - struct ImageDecoderQOI : ImageDecoderInterface + struct ImageDecoderQOI : ImageDecodeInterface { ConstMemory m_memory; @@ -347,9 +347,9 @@ namespace } }; - ImageDecoderInterface* create_decoder_qoi(ConstMemory memory) + ImageDecodeInterface* create_decoder_qoi(ConstMemory memory) { - ImageDecoderInterface* x = new ImageDecoderQOI(memory); + ImageDecodeInterface* x = new ImageDecoderQOI(memory); return x; } @@ -399,7 +399,7 @@ namespace static constexpr u32 TOI_HEADER_MAGIC = u32_mask('t', 'o', 'i', 'f'); static constexpr u32 TOI_HEADER_SIZE = 16; - struct ImageDecoderTOI : ImageDecoderInterface + struct ImageDecoderTOI : ImageDecodeInterface { ConstMemory m_memory; u32 m_xtile; @@ -509,9 +509,9 @@ namespace } }; - ImageDecoderInterface* create_decoder_toi(ConstMemory memory) + ImageDecodeInterface* create_decoder_toi(ConstMemory memory) { - ImageDecoderInterface* x = new ImageDecoderTOI(memory); + ImageDecodeInterface* x = new ImageDecoderTOI(memory); return x; } diff --git a/source/mango/image/image_raw.cpp b/source/mango/image/image_raw.cpp index eee9e60e..8f89288b 100644 --- a/source/mango/image/image_raw.cpp +++ b/source/mango/image/image_raw.cpp @@ -17,7 +17,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { ConstMemory m_memory; @@ -84,9 +84,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_sgi.cpp b/source/mango/image/image_sgi.cpp index 02c4e597..cd0d26fe 100644 --- a/source/mango/image/image_sgi.cpp +++ b/source/mango/image/image_sgi.cpp @@ -93,7 +93,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { ConstMemory m_memory; HeaderSGI m_sgi_header; @@ -253,9 +253,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_tga.cpp b/source/mango/image/image_tga.cpp index f9322bf7..2188a97b 100644 --- a/source/mango/image/image_tga.cpp +++ b/source/mango/image/image_tga.cpp @@ -299,7 +299,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { ConstMemory m_memory; HeaderTGA m_targa_header; @@ -500,9 +500,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_webp.cpp b/source/mango/image/image_webp.cpp index 74b125eb..da5501ab 100644 --- a/source/mango/image/image_webp.cpp +++ b/source/mango/image/image_webp.cpp @@ -78,7 +78,7 @@ namespace // ImageDecoder // ------------------------------------------------------------ - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { ConstMemory m_memory; @@ -157,9 +157,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/image_zpng.cpp b/source/mango/image/image_zpng.cpp index 4f5231bf..19b245b3 100644 --- a/source/mango/image/image_zpng.cpp +++ b/source/mango/image/image_zpng.cpp @@ -58,7 +58,7 @@ namespace return format; } - struct Interface : ImageDecoderInterface + struct Interface : ImageDecodeInterface { ZPNG_Buffer m_buffer; @@ -131,9 +131,9 @@ namespace } }; - ImageDecoderInterface* createInterface(ConstMemory memory) + ImageDecodeInterface* createInterface(ConstMemory memory) { - ImageDecoderInterface* x = new Interface(memory); + ImageDecodeInterface* x = new Interface(memory); return x; } diff --git a/source/mango/image/surface.cpp b/source/mango/image/surface.cpp index 42043f02..583b7063 100644 --- a/source/mango/image/surface.cpp +++ b/source/mango/image/surface.cpp @@ -941,21 +941,24 @@ namespace mango::image stride = width * format.bytes(); } - size_t bytes = stride * height; - image = new u8[bytes]; + image = new u8[stride * height]; } Bitmap::Bitmap(const Surface& source, const Format& format) : Surface(source.width, source.height, format, 0, nullptr) { stride = width * format.bytes(); - - size_t bytes = stride * height; - image = new u8[bytes]; - + image = new u8[stride * height]; blit(0, 0, source); } + Bitmap::Bitmap(const ImageHeader& header) + : Surface(header.width, header.height, header.format, 0, nullptr) + { + stride = width * format.bytes(); + image = new u8[stride * height]; + } + Bitmap::Bitmap(ConstMemory memory, const std::string& extension, const ImageDecodeOptions& options) : Surface(create_surface(memory, extension, nullptr, options)) { @@ -989,6 +992,7 @@ namespace mango::image Bitmap::Bitmap(Bitmap&& bitmap) : Surface(bitmap) { + // move image ownership bitmap.image = nullptr; } @@ -1076,6 +1080,14 @@ namespace mango::image // misc // ---------------------------------------------------------------------------- + void transform(const Surface& surface, ConstMemory icc) + { + image::ColorManager manager; + image::ColorProfile profile = manager.create(icc); + image::ColorProfile display = manager.createSRGB(); + manager.transform(surface, display, profile); + } + void srgbToLinear(const Surface& surface) { ::srgbToLinear(surface); diff --git a/source/mango/jpeg/jpeg.hpp b/source/mango/jpeg/jpeg.hpp index 2c27a454..9d27c9bc 100644 --- a/source/mango/jpeg/jpeg.hpp +++ b/source/mango/jpeg/jpeg.hpp @@ -359,7 +359,7 @@ namespace mango::image::jpeg { protected: ConstMemory memory; - + ImageDecodeInterface* m_interface; QuantTable quantTable[JPEG_MAX_COMPS_IN_SCAN]; AlignedStorage quantTableVector; @@ -384,12 +384,17 @@ namespace mango::image::jpeg std::string m_idct_name; std::string m_ycbcr_name; - const Surface* m_surface = nullptr; + ImageDecodeStatus m_decode_status; + + const Surface* m_target = nullptr; // caller surface + const Surface* m_surface = nullptr; // temporary color conversion/clipping surface + bool m_request_blitting = false; + + int aligned_width; + int aligned_height; + int width; + int height; - int width; // Image width, does include alignment - int height; // Image height, does include alignment - int xsize; // Image width, does NOT include alignment - int ysize; // Image height, does NOT include alignment int precision; // 8 or 12 bits int components; // 1..4 @@ -447,6 +452,7 @@ namespace mango::image::jpeg void process_range(int y0, int y1, const s16* data); void process_and_clip(u8* dest, size_t stride, const s16* data, int width, int height); + void blit_and_update(const ImageDecodeRect& rect, bool force_blit = false); int getTaskSize(int count) const; void configureCPU(SampleType sample, const ImageDecodeOptions& options); @@ -458,7 +464,7 @@ namespace mango::image::jpeg ConstMemory scan_memory; // Scan block Buffer icc_buffer; // ICC color profile block, if one is present - Parser(ConstMemory memory); + Parser(ConstMemory memory, ImageDecodeInterface* interface); ~Parser(); ImageDecodeStatus decode(const Surface& target, const ImageDecodeOptions& options); diff --git a/source/mango/jpeg/jpeg_decode.cpp b/source/mango/jpeg/jpeg_decode.cpp index 40ec1496..f093a064 100644 --- a/source/mango/jpeg/jpeg_decode.cpp +++ b/source/mango/jpeg/jpeg_decode.cpp @@ -129,8 +129,9 @@ namespace mango::image::jpeg // Parser // ---------------------------------------------------------------------------- - Parser::Parser(ConstMemory memory) + Parser::Parser(ConstMemory memory, ImageDecodeInterface* interface) : memory(memory) + , m_interface(interface) , quantTableVector(64 * JPEG_MAX_COMPS_IN_SCAN) { restartInterval = 0; @@ -216,6 +217,13 @@ namespace mango::image::jpeg } else if (p[1]) { + if (p[1] == 0xff) + { + // workaround for ancient encoder using 0xff, 0xff as padding + p += 2; + continue; + } + // found a marker return p; } @@ -441,12 +449,12 @@ namespace mango::image::jpeg u16 length = bigEndian::uload16(p + 0); precision = p[2]; - ysize = bigEndian::uload16(p + 3); - xsize = bigEndian::uload16(p + 5); + height = bigEndian::uload16(p + 3); + width = bigEndian::uload16(p + 5); components = p[7]; p += 8; - printLine(Print::Info, " Image: {} x {} x {}", xsize, ysize, precision); + printLine(Print::Info, " Image: {} x {} x {}", width, height, precision); u16 correct_length = 8 + 3 * components; if (length != correct_length) @@ -455,10 +463,10 @@ namespace mango::image::jpeg return; } - if (xsize <= 0 || ysize <= 0 || xsize > 65535 || ysize > 65535) + if (width <= 0 || height <= 0 || width > 65535 || height > 65535) { // NOTE: ysize of 0 is allowed in the specs but we won't - header.setError("Incorrect dimensions ({} x {})", xsize, ysize); + header.setError("Incorrect dimensions ({} x {})", width, height); return; } @@ -650,20 +658,20 @@ namespace mango::image::jpeg // Align to next MCU boundary int xmask = xblock - 1; int ymask = yblock - 1; - width = (xsize + xmask) & ~xmask; - height = (ysize + ymask) & ~ymask; + aligned_width = (width + xmask) & ~xmask; + aligned_height = (height + ymask) & ~ymask; // MCU resolution - xmcu = width / xblock; - ymcu = height / yblock; + xmcu = aligned_width / xblock; + ymcu = aligned_height / yblock; mcus = xmcu * ymcu; printLine(Print::Info, " {} MCUs ({} x {}) -> ({} x {})", mcus, xmcu, ymcu, xmcu * xblock, ymcu * yblock); - printLine(Print::Info, " Image: {} x {}", xsize, ysize); + printLine(Print::Info, " Image: {} x {}", width, height); // configure header - header.width = xsize; - header.height = ysize; + header.width = width; + header.height = height; header.format = components > 1 ? Format(32, Format::UNORM, Format::RGBA, 8, 8, 8, 8) : LuminanceFormat(8, Format::UNORM, 8, 0); @@ -845,6 +853,8 @@ namespace mango::image::jpeg restartCounter = restartInterval; + m_request_blitting = is_lossless || is_multiscan; + if (decodeState.is_arithmetic) { ArithmeticDecoder& arithmetic = decodeState.arithmetic; @@ -1264,6 +1274,12 @@ namespace mango::image::jpeg break; } + if (m_interface->cancelled) + { + // decoding is cancelled + break; + } + u16 marker = bigEndian::uload16(p); p += 2; @@ -1727,12 +1743,12 @@ namespace mango::image::jpeg ImageDecodeStatus Parser::decode(const Surface& target, const ImageDecodeOptions& options) { - ImageDecodeStatus status; + m_decode_status = ImageDecodeStatus(); if (!scan_memory.address || !header) { - status.setError(header.info); - return status; + m_decode_status.setError(header.info); + return m_decode_status; } // determine if we need a full-surface temporary storage @@ -1773,60 +1789,71 @@ namespace mango::image::jpeg sf.format = Format(32, Format::UNORM, Format::RGBA, 8, 8, 8, 8); } - status.direct = true; + m_decode_status.direct = true; - if (target.width != xsize || target.height != ysize) + if (target.width < width || target.height < height) { - status.direct = false; + m_decode_status.direct = false; } if (target.format != sf.format) { - status.direct = false; + m_decode_status.direct = false; } // set decoding target surface + m_target = ⌖ m_surface = ⌖ + m_request_blitting = false; std::unique_ptr temp; - if (!status.direct) + if (!m_decode_status.direct) { // create a temporary decoding target - temp = std::make_unique(width, height, sf.format); + temp = std::make_unique(aligned_width, aligned_height, sf.format); m_surface = temp.get(); } + // decoding parse(scan_memory, true); if (!header) { - status.setError(header.info); - return status; + blockVector.resize(0); + m_decode_status.setError(header.info); + return m_decode_status; } - if (is_progressive || is_multiscan) + if (m_interface->cancelled) { - finishProgressive(); + blockVector.resize(0); + m_decode_status.info = getInfo(); + return m_decode_status; } - if (!status.direct) + if (is_progressive || is_multiscan) { - target.blit(0, 0, *m_surface); + finishProgressive(); } - if (icc_buffer.size() > 0 && options.icc) + if (m_request_blitting) { - image::ColorManager manager; - image::ColorProfile profile = manager.create(ConstMemory(icc_buffer.data(), icc_buffer.size())); - image::ColorProfile display = manager.createSRGB(); - manager.transform(target, display, profile); + ImageDecodeRect rect; + + rect.x = 0; + rect.y = 0; + rect.width = width; + rect.height = height; + rect.progress = 1.0f; + + blit_and_update(rect, true); } blockVector.resize(0); - status.info = getInfo(); + m_decode_status.info = getInfo(); - return status; + return m_decode_status; } std::string Parser::getInfo() const @@ -1882,7 +1909,7 @@ namespace mango::image::jpeg previousDC = decodeState.arithmetic.last_dc_value; } - const int width = m_surface->width; + const int width = m_surface->width; const int height = m_surface->height; const int xlast = width - 1; const int components = decodeState.comps_in_scan; @@ -1900,6 +1927,11 @@ namespace mango::image::jpeg for (int y = 0; y < height; ++y) { + if (m_interface->cancelled) + { + break; + } + u8* image = m_surface->address(0, y); for (int x = 0; x < width; ++x) @@ -1992,51 +2024,82 @@ namespace mango::image::jpeg const size_t bytes_per_pixel = m_surface->format.bytes(); const size_t xstride = bytes_per_pixel * xblock; const size_t ystride = stride * yblock; + const int N = 8; AlignedStorage data(JPEG_MAX_SAMPLES_IN_MCU); - const u8* p = decodeState.buffer.ptr; u8* image = m_surface->image; - for (int i = 0; i < mcus; i += restartInterval) + int restart_counter = 0; + + for (int scan = 0; scan < ymcu; scan += N) { - DecodeState state = decodeState; - state.buffer.ptr = p; + if (m_interface->cancelled) + { + break; + } - const int left = i + std::min(restartInterval, mcus - i); + int y0 = scan; + int y1 = std::min(scan + N, ymcu); - const int xmcu_last = xmcu - 1; - const int ymcu_last = ymcu - 1; + for (int y = y0; y < y1; ++y) + { + const int xmcu_last = xmcu - 1; + const int ymcu_last = ymcu - 1; - const int xclip = xsize % xblock; - const int yclip = ysize % yblock; - const int xblock_last = xclip ? xclip : xblock; - const int yblock_last = yclip ? yclip : yblock; + const int xclip = width % xblock; + const int yclip = height % yblock; + const int xblock_last = xclip ? xclip : xblock; + const int yblock_last = yclip ? yclip : yblock; - for (int j = i; j < left; ++j) - { - state.decode(data, &state); + u8* dest = image + y * ystride; - int x = j % xmcu; - int y = j / xmcu; - u8* dest = image + y * ystride + x * xstride; + for (int x = 0; x < xmcu; ++x) + { + decodeState.decode(data, &decodeState); + + int width = x == xmcu_last ? xblock_last : xblock; + int height = y == ymcu_last ? yblock_last : yblock; - int width = x == xmcu_last ? xblock_last : xblock; - int height = y == ymcu_last ? yblock_last : yblock; + process_and_clip(dest, stride, data, width, height); + dest += xstride; - process_and_clip(dest, stride, data, width, height); + if (++restart_counter == restartInterval) + { + decodeState.restart(); + restart_counter = 0; + + const u8* p = decodeState.buffer.ptr; + p = seekMarker(p, decodeState.buffer.end); + if (isRestartMarker(p)) + { + p += 2; + } + + if (p >= decodeState.buffer.end) + { + // out of data + break; + } + + decodeState.buffer.ptr = p; + } + } } - // seek next restart marker - p = seekMarker(p, decodeState.buffer.end); + ImageDecodeRect rect; - if (p >= decodeState.buffer.end) - break; + rect.x = 0; + rect.y = y0 * yblock; + rect.width = width; + rect.height = std::min(height, y1 * yblock) - y0 * yblock; + rect.progress = float(rect.height) / height; - if (isRestartMarker(p)) - p += 2; + blit_and_update(rect); } + // update parser pointer + const u8* p = seekMarker(decodeState.buffer.ptr - 12, decodeState.buffer.end); decodeState.buffer.ptr = p; } else @@ -2054,6 +2117,11 @@ namespace mango::image::jpeg for (int y = 0; y < ymcu; y += N) { + if (m_interface->cancelled) + { + break; + } + const int y0 = y; const int y1 = std::min(y + N, ymcu); const int count = (y1 - y0) * xmcu; @@ -2063,10 +2131,20 @@ namespace mango::image::jpeg decodeState.decode(data + i * mcu_data_size, &decodeState); } + if (decodeState.buffer.ptr >= decodeState.buffer.end) + { + // out of data + break; + } + process_range(y0, y1, data); } aligned_free(data); + + // update parser pointer + const u8* p = seekMarker(decodeState.buffer.ptr - 12, decodeState.buffer.end); + decodeState.buffer.ptr = p; } } @@ -2088,56 +2166,16 @@ namespace mango::image::jpeg const u8* p = decodeState.buffer.ptr; u8* image = m_surface->image; -#if 0 - - for (int y = 0; y < ymcu; ++y) - { - u32 offset = m_restart_offsets[y]; - - // enqueue task - queue.enqueue([=] - { - AlignedStorage data(JPEG_MAX_SAMPLES_IN_MCU); - - DecodeState state = decodeState; - state.buffer.ptr = p; - - const int xmcu_last = xmcu - 1; - const int ymcu_last = ymcu - 1; - const int xclip = xsize % xblock; - const int yclip = ysize % yblock; - const int xblock_last = xclip ? xclip : xblock; - const int yblock_last = yclip ? yclip : yblock; - - u8* dest = image + y * ystride; - int height = (y == ymcu_last) ? yblock_last : yblock; - - for (int x = 0; x < xmcu_last; ++x) - { - state.decode(data, &state); - process_and_clip(dest, stride, data, xblock, height); - dest += xstride; - } - - // last column - state.decode(data, &state); - process_and_clip(dest, stride, data, xblock_last, height); - }); - - p = memory.address + offset; - } - - decodeState.buffer.ptr = p; - -#else - - // workaround for restart interval being only one row of MCUs (JPEG specification) - // less overhead as multiple intervals are in same task - const u32* offsets = m_restart_offsets.data(); for (int y = 0; y < ymcu; y += N) { + if (m_interface->cancelled) + { + queue.cancel(); + break; + } + int y0 = y; int y1 = std::min(y + N, ymcu); @@ -2148,8 +2186,8 @@ namespace mango::image::jpeg const int xmcu_last = xmcu - 1; const int ymcu_last = ymcu - 1; - const int xclip = xsize % xblock; - const int yclip = ysize % yblock; + const int xclip = width % xblock; + const int yclip = height % yblock; const int xblock_last = xclip ? xclip : xblock; const int yblock_last = yclip ? yclip : yblock; @@ -2157,6 +2195,11 @@ namespace mango::image::jpeg for (int i = y0; i < y1; ++i) { + if (m_interface->cancelled) + { + return; + } + DecodeState state = decodeState; state.buffer.ptr = ptr; ptr = memory.address + offsets[i]; @@ -2175,14 +2218,24 @@ namespace mango::image::jpeg state.decode(data, &state); process_and_clip(dest, stride, data, xblock_last, height); } + + ImageDecodeRect rect; + + rect.x = 0; + rect.y = y0 * yblock; + rect.width = width; + rect.height = std::min(height, y1 * yblock) - y0 * yblock; + rect.progress = float(rect.height) / height; + + blit_and_update(rect); }); // use last offset in the range p = memory.address + offsets[y1 - 1]; } + // update parser pointer decodeState.buffer.ptr = p; -#endif } else if (restartInterval) { @@ -2190,6 +2243,15 @@ namespace mango::image::jpeg // standard jpeg with DRI marker present // --------------------------------------------------------------- + //if (restartInterval < xmcu || restartInterval % xmcu) + if (restartInterval != xmcu) + { + // restart markers are in middle of MCU scan which is against the specification + // we can still handle this in sequential code + decodeSequentialST(); + return; + } + const u8* p = decodeState.buffer.ptr; const size_t stride = m_surface->stride; @@ -2199,51 +2261,95 @@ namespace mango::image::jpeg u8* image = m_surface->image; - for (int i = 0; i < mcus; i += restartInterval) + for (int y = 0; y < ymcu; y += N) { + if (m_interface->cancelled) + { + queue.cancel(); + break; + } + + int y0 = y; + int y1 = std::min(y + N, ymcu); + // enqueue task - queue.enqueue([=] + queue.enqueue([=] (const u8* p) { - AlignedStorage data(JPEG_MAX_SAMPLES_IN_MCU); + for (int y = y0; y < y1; ++y) + { + if (m_interface->cancelled) + { + return; + } - DecodeState state = decodeState; - state.buffer.ptr = p; + AlignedStorage data(JPEG_MAX_SAMPLES_IN_MCU); - const int left = i + std::min(restartInterval, mcus - i); + DecodeState state = decodeState; + state.buffer.ptr = p; - const int xmcu_last = xmcu - 1; - const int ymcu_last = ymcu - 1; + const int xmcu_last = xmcu - 1; + const int ymcu_last = ymcu - 1; - const int xclip = xsize % xblock; - const int yclip = ysize % yblock; - const int xblock_last = xclip ? xclip : xblock; - const int yblock_last = yclip ? yclip : yblock; + const int xclip = width % xblock; + const int yclip = height % yblock; + const int xblock_last = xclip ? xclip : xblock; + const int yblock_last = yclip ? yclip : yblock; - for (int j = i; j < left; ++j) - { - state.decode(data, &state); + for (int x = 0; x < xmcu; ++x) + { + state.decode(data, &state); - int x = j % xmcu; - int y = j / xmcu; - u8* dest = image + y * ystride + x * xstride; + u8* dest = image + y * ystride + x * xstride; - int width = x == xmcu_last ? xblock_last : xblock; - int height = y == ymcu_last ? yblock_last : yblock; + int width = x == xmcu_last ? xblock_last : xblock; + int height = y == ymcu_last ? yblock_last : yblock; - process_and_clip(dest, stride, data, width, height); + process_and_clip(dest, stride, data, width, height); + } + + p = seekMarker(state.buffer.ptr, state.buffer.end); + if (isRestartMarker(p)) + { + p += 2; + } + + if (p >= state.buffer.end) + { + // out of data + return; + } } - }); - // seek next restart marker - p = seekMarker(p, decodeState.buffer.end); + ImageDecodeRect rect; + + rect.x = 0; + rect.y = y0 * yblock; + rect.width = width; + rect.height = std::min(height, y1 * yblock) - y0 * yblock; + rect.progress = float(rect.height) / height; + + blit_and_update(rect); + }, p); + + // skip N restart intervals (handled by the task queue) + for (int i = y0; i < y1; ++i) + { + p = seekMarker(p, decodeState.buffer.end); + if (isRestartMarker(p)) + { + p += 2; + } + } if (p >= decodeState.buffer.end) + { + // out of data break; - - if (isRestartMarker(p)) - p += 2; + } } + // update parser pointer + p = seekMarker(p - 12, decodeState.buffer.end); decodeState.buffer.ptr = p; } else @@ -2256,6 +2362,12 @@ namespace mango::image::jpeg for (int y = 0; y < ymcu; y += N) { + if (m_interface->cancelled) + { + // NOTE: Don't cancel queue it deallocates memory + break; + } + const int y0 = y; const int y1 = std::min(y + N, ymcu); const int count = (y1 - y0) * xmcu; @@ -2272,10 +2384,18 @@ namespace mango::image::jpeg // enqueue task queue.enqueue([=] { - process_range(y0, y1, data); - aligned_free(data); + if (!m_interface->cancelled) + { + process_range(y0, y1, data); + } + + aligned_free(aligned_ptr); }); } + + // update parser pointer + const u8* p = seekMarker(decodeState.buffer.ptr - 12, decodeState.buffer.end); + decodeState.buffer.ptr = p; } } @@ -2286,6 +2406,11 @@ namespace mango::image::jpeg for (int y = 0; y < ymcu; ++y) { + if (m_interface->cancelled) + { + break; + } + for (int x = 0; x < xmcu; ++x) { decodeState.decode(data, &decodeState); @@ -2334,6 +2459,12 @@ namespace mango::image::jpeg for (int i = 0; i < mcus; i += restartInterval) { + if (m_interface->cancelled) + { + queue.cancel(); + break; + } + // enqueue task queue.enqueue([=] { @@ -2350,12 +2481,11 @@ namespace mango::image::jpeg } }); - // seek next restart marker - p = seekMarker(p, decodeState.buffer.end); - if (p >= decodeState.buffer.end) - break; + p = seekMarker(decodeState.buffer.ptr, decodeState.buffer.end); if (isRestartMarker(p)) + { p += 2; + } } decodeState.buffer.ptr = p; @@ -2366,6 +2496,11 @@ namespace mango::image::jpeg for (int i = 0; i < mcus; ++i) { + if (!(i & 0x200) && m_interface->cancelled) + { + break; + } + decodeState.decode(data, &decodeState); data += blocks_in_mcu * 64; } @@ -2388,8 +2523,8 @@ namespace mango::image::jpeg const int scan_offset = scanFrame->offset; - const int xs = ((xsize + hsize - 1) / hsize); - const int ys = ((ysize + vsize - 1) / vsize); + const int xs = ((width + hsize - 1) / hsize); + const int ys = ((height + vsize - 1) / vsize); const int cnt = xs * ys; printLine(Print::Info, " blocks: {} x {} ({} x {})", xs, ys, xs * hsize, ys * vsize); @@ -2408,6 +2543,12 @@ namespace mango::image::jpeg for (int i = 0; i < cnt; i += restartInterval) { + if (m_interface->cancelled) + { + queue.cancel(); + break; + } + // enqueue task queue.enqueue([=] { @@ -2432,12 +2573,11 @@ namespace mango::image::jpeg } }); - // seek next restart marker - p = seekMarker(p, decodeState.buffer.end); - if (p >= decodeState.buffer.end) - break; + p = seekMarker(decodeState.buffer.ptr, decodeState.buffer.end); if (isRestartMarker(p)) + { p += 2; + } } decodeState.buffer.ptr = p; @@ -2456,8 +2596,8 @@ namespace mango::image::jpeg const int scan_offset = scanFrame->offset; - const int xs = ((xsize + hsize - 1) / hsize); - const int ys = ((ysize + vsize - 1) / vsize); + const int xs = ((width + hsize - 1) / hsize); + const int ys = ((height + vsize - 1) / vsize); printLine(Print::Info, " blocks: {} x {} ({} x {})", xs, ys, xs * hsize, ys * vsize); @@ -2466,6 +2606,11 @@ namespace mango::image::jpeg for (int y = 0; y < ys; ++y) { + if (m_interface->cancelled) + { + break; + } + int mcu_yoffset = (y >> vsf) * xmcu; int block_yoffset = ((y & VMask) << hsf) + scan_offset; @@ -2492,6 +2637,12 @@ namespace mango::image::jpeg for (int y = 0; y < ymcu; y += n) { + if (m_interface->cancelled) + { + queue.cancel(); + break; + } + const int y0 = y; const int y1 = std::min(y + n, ymcu); @@ -2527,13 +2678,18 @@ namespace mango::image::jpeg const int xmcu_last = xmcu - 1; const int ymcu_last = ymcu - 1; - const int xclip = xsize % xblock; - const int yclip = ysize % yblock; + const int xclip = width % xblock; + const int yclip = height % yblock; const int xblock_last = xclip ? xclip : xblock; const int yblock_last = yclip ? yclip : yblock; for (int y = y0; y < y1; ++y) { + if (m_interface->cancelled) + { + break; + } + u8* dest = image + y * ystride; int height = y == ymcu_last ? yblock_last : yblock; @@ -2549,6 +2705,16 @@ namespace mango::image::jpeg data += mcu_data_size; dest += xstride; } + + ImageDecodeRect rect; + + rect.x = 0; + rect.y = y0 * yblock; + rect.width = width; + rect.height = std::min(height, y1 * yblock) - y0 * yblock; + rect.progress = float(rect.height) / height; + + blit_and_update(rect); } void Parser::process_and_clip(u8* dest, size_t stride, const s16* data, int width, int height) @@ -2578,4 +2744,19 @@ namespace mango::image::jpeg } } + void Parser::blit_and_update(const ImageDecodeRect& rect, bool force_blit) + { + if (!m_decode_status.direct || force_blit) + { + // color conversion and clipping + Surface source(*m_surface, rect.x, rect.y, rect.width, rect.height); + m_target->blit(rect.x, rect.y, source); + } + + if (m_interface->callback) + { + m_interface->callback(rect); + } + } + } // namespace mango::image::jpeg diff --git a/source/mango/jpeg/jpeg_process.cpp b/source/mango/jpeg/jpeg_process.cpp index d1a5324f..c1dc62c4 100644 --- a/source/mango/jpeg/jpeg_process.cpp +++ b/source/mango/jpeg/jpeg_process.cpp @@ -104,21 +104,22 @@ void process_cmyk_rgba(u8* dest, size_t stride, const s16* data, ProcessState* s int xsize = (width + 7) / 8; int ysize = (height + 7) / 8; - int cb_offset = state->frame[1].offset * 64; - int cb_xshift = state->frame[1].hsf; - int cb_yshift = state->frame[1].vsf; + int y_xshift = state->frame[0].hsf; + int y_yshift = state->frame[0].vsf; - int cr_offset = state->frame[2].offset * 64; - int cr_xshift = state->frame[2].hsf; - int cr_yshift = state->frame[2].vsf; + int b_xshift = state->frame[1].hsf; + int b_yshift = state->frame[1].vsf; - int ck_offset = state->frame[3].offset * 64; - int ck_xshift = state->frame[3].hsf; - int ck_yshift = state->frame[3].vsf; + int r_xshift = state->frame[2].hsf; + int r_yshift = state->frame[2].vsf; - u8* cb_data = result + cb_offset; - u8* cr_data = result + cr_offset; - u8* ck_data = result + ck_offset; + int k_xshift = state->frame[3].hsf; + int k_yshift = state->frame[3].vsf; + + u8* y_data = result + state->frame[0].offset * 64; + u8* b_data = result + state->frame[1].offset * 64; + u8* r_data = result + state->frame[2].offset * 64; + u8* k_data = result + state->frame[3].offset * 64; const ColorSpace colorspace = state->colorspace; @@ -131,10 +132,21 @@ void process_cmyk_rgba(u8* dest, size_t stride, const s16* data, ProcessState* s for (int xb = 0; xb < xsize; ++xb) { u8* dest_block = dest + yb * 8 * stride + xb * 8 * sizeof(u32); - u8* y_block = result + (yb * xsize + xb) * 64; - u8* cb_block = cb_data + yb * (8 >> cb_yshift) * 8 + xb * (8 >> cb_xshift); - u8* cr_block = cr_data + yb * (8 >> cr_yshift) * 8 + xb * (8 >> cr_xshift); - u8* ck_block = ck_data + yb * (8 >> ck_yshift) * 8 + xb * (8 >> ck_xshift); + + u8* y_block = y_data + (xb >> y_xshift) * 64 + (yb >> y_yshift) * 64 * ysize; + u8* b_block = b_data + (xb >> b_xshift) * 64 + (yb >> b_yshift) * 64 * ysize; + u8* r_block = r_data + (xb >> r_xshift) * 64 + (yb >> r_yshift) * 64 * ysize; + u8* k_block = k_data + (xb >> k_xshift) * 64 + (yb >> k_yshift) * 64 * ysize; + + if (y_xshift) y_block += xb * (8 >> y_xshift); + if (b_xshift) b_block += xb * (8 >> b_xshift); + if (r_xshift) r_block += xb * (8 >> r_xshift); + if (k_xshift) k_block += xb * (8 >> k_xshift); + + if (y_yshift) y_block += yb * (8 >> y_xshift) * 8; + if (b_yshift) b_block += yb * (8 >> b_xshift) * 8; + if (r_yshift) r_block += yb * (8 >> r_xshift) * 8; + if (k_yshift) k_block += yb * (8 >> k_xshift) * 8; // horizontal clipping limit for current block const int xmax = std::min(8, width - xb * 8); @@ -144,16 +156,17 @@ void process_cmyk_rgba(u8* dest, size_t stride, const s16* data, ProcessState* s { u32* d = reinterpret_cast(dest_block); - u8* cb_scan = cb_block + (y >> cb_yshift) * 8; - u8* cr_scan = cr_block + (y >> cr_yshift) * 8; - u8* ck_scan = ck_block + (y >> ck_yshift) * 8; + u8* y_scan = y_block + (y >> y_yshift) * 8; + u8* b_scan = b_block + (y >> b_yshift) * 8; + u8* r_scan = r_block + (y >> r_yshift) * 8; + u8* k_scan = k_block + (y >> k_yshift) * 8; for (int x = 0; x < xmax; ++x) { - u8 y0 = y_block[x]; - u8 cb = cb_scan[x >> cb_xshift]; - u8 cr = cr_scan[x >> cr_xshift]; - u8 ck = ck_scan[x >> ck_xshift]; + u8 y0 = y_scan[x >> y_xshift]; + u8 cb = b_scan[x >> b_xshift]; + u8 cr = r_scan[x >> r_xshift]; + u8 ck = k_scan[x >> k_xshift]; int C; int M; @@ -193,8 +206,8 @@ void process_cmyk_rgba(u8* dest, size_t stride, const s16* data, ProcessState* s b = byteclamp(b); d[x] = image::makeRGBA(r, g, b, 0xff); } + dest_block += stride; - y_block += 8; } } }