Add Nintendo Switch initial support

.github/workflows/build-switch.yml

@@ -0,0 +1,28 @@
+name: re3 cmake devkitA64 (Nintendo Switch)
+on:
+  pull_request:
+  push:
+  release:
+    types: published
+jobs:
+  build-nintendo-switch:
+    runs-on: ubuntu-latest
+    container: devkitpro/devkita64:latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: 'true'
+      - name: "Build files"
+        run: |
+          /opt/devkitpro/portlibs/switch/bin/aarch64-none-elf-cmake -S. -Bbuild -DRE3_AUDIO=OAL -DLIBRW_PLATFORM=GL3 -DLIBRW_GL3_GFXLIB=GLFW -DRE3_WITH_OPUS=False -DRE3_VENDORED_LIBRW=True -DRE3_INSTALL=True
+          cmake --build build --parallel
+      - name: "Create binary package (cpack)"
+        working-directory: ./build
+        run: |
+          cpack
+      - name: "Archive binary package (github artifacts)"
+        uses: actions/upload-artifact@v2
+        with:
+          name: "switch-gl3"
+          path: build/*.zip
+          if-no-files-found: error

.vscode/c_cpp_properties.json

@@ -26,6 +26,25 @@
       "compilerArgs": ["-ggdb"],
       "cStandard": "gnu11",
       "cppStandard": "gnu++14"
+    },
+    {
+      "name": "devkitPro aarch64 (Nintendo Switch)",
+      "compilerPath": "${env:DEVKITPRO}/devkitA64/bin/aarch64-none-elf-g++",
+      "includePath": [
+        "${default}",
+        "${env:DEVKITPRO}/portlibs/switch/include",
+        "${env:DEVKITPRO}/libnx/include"
+      ],
+      "intelliSenseMode": "gcc-arm64",
+      "cStandard": "gnu11",
+      "cppStandard": "gnu++11",
+      "defines": [
+        "__SWITCH__",
+        "GTA_SWITCH",
+        "LIBRW",
+        "RW_GL3",
+        "AUDIO_OAL"
+      ]
     }
   ],
   "version": 4

.vscode/settings.json

@@ -2,8 +2,13 @@
   "C_Cpp.default.cStandard": "gnu11",
   "C_Cpp.default.cppStandard": "gnu++14",
   "C_Cpp.default.includePath": [
+    "src",
     "src/animation",
     "src/audio",
+    "src/audio/eax",
+    "src/audio/oal",
+    "src/buildings",
+    "src/collision",
     "src/control",
     "src/core",
     "src/entities",
@@ -15,8 +20,9 @@
     "src/peds",
     "src/render",
     "src/rw",
-    "src/save",
-    "src/skel",
+    "src/save/",
+    "src/skel/",
+    "src/skel/glfw",
     "src/text",
     "src/vehicles",
     "src/weapons",

CMakeLists.txt

@@ -12,6 +12,10 @@ message(STATUS "Building ${CMAKE_PROJECT_NAME} GIT SHA1: ${GIT_SHA1}")
 
 if(WIN32)
     set(${PROJECT}_AUDIOS "OAL" "MSS")
+elseif(NINTENDO_SWITCH)
+    list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake/nx")
+    include(NXFunctions)
+    set(${PROJECT}_AUDIOS "OAL")
 else()
     set(${PROJECT}_AUDIOS "OAL")
 endif()
@@ -66,6 +70,8 @@ if(${PROJECT}_INSTALL)
             set(os "-apple")
         elseif(UNIX)
             set(os "-linux")
+        elseif(NINTENDO_SWITCH)
+            set(os "-switch")
         else()
             set(compiler "-UNK")
             message(WARNING "Unknown os. Created cpack package will be wrong. (override using cpack -P)")

cmake/nx/NXFunctions.cmake

@@ -0,0 +1,7 @@
+if(NOT COMMAND nx_generate_nacp)
+    message(FATAL_ERROR "The `nx_generate_nacp` cmake command is not available. Please use an appropriate Nintendo Switch toolchain.")
+endif()
+
+if(NOT COMMAND nx_create_nro)
+    message(FATAL_ERROR "The `nx_create_nro` cmake command is not available. Please use an appropriate Nintendo Switch toolchain.")
+endif()

src/CMakeLists.txt

@@ -120,13 +120,19 @@ elseif(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
     )
 endif()
 
+if(NINTENDO_SWITCH)
+    set(${PROJECT}_C_CXX_EXTENSIONS ON)
+else()
+    set(${PROJECT}_C_CXX_EXTENSIONS OFF)
+endif()
+
 set_target_properties(${EXECUTABLE}
     PROPERTIES
         C_STANDARD 11
-        C_EXTENSIONS OFF
+        C_EXTENSIONS ${${PROJECT}_C_CXX_EXTENSIONS}
         C_STANDARD_REQUIRED ON
         CXX_STANDARD 11
-        CXX_EXTENSIONS OFF
+        CXX_EXTENSIONS ${${PROJECT}_C_CXX_EXTENSIONS}
         CXX_STANDARD_REQUIRED ON
 )
 
@@ -140,3 +146,33 @@ if(${PROJECT}_INSTALL)
         install(FILES $<TARGET_PDB_FILE:${EXECUTABLE}> DESTINATION "." OPTIONAL)
     endif()
 endif()
+
+# Build Nintendo Switch binaries
+if(NINTENDO_SWITCH)
+    target_compile_definitions(${EXECUTABLE} PRIVATE
+        GTA_SWITCH
+    )
+
+    # Needed for OpenAL-Soft
+    target_link_libraries(${EXECUTABLE} PRIVATE
+        openal # HACK - something broke with latest cmake
+        SDL2
+    )
+
+    nx_generate_nacp (${EXECUTABLE}.nacp
+        NAME    "${EXECUTABLE}"
+        AUTHOR  "${EXECUTABLE} Team"
+        VERSION "1.0.0-${GIT_SHA1}"
+    )
+
+    nx_create_nro(${EXECUTABLE}
+        NACP ${EXECUTABLE}.nacp
+        ICON "${PROJECT_SOURCE_DIR}/logo_switch.jpg"
+    )
+
+    if(${PROJECT}_INSTALL)
+        install(FILES "${CMAKE_CURRENT_BINARY_DIR}/${EXECUTABLE}.nro"
+            DESTINATION "."
+        )
+    endif()
+endif()

src/core/common.h

@@ -11,6 +11,10 @@
 #define __STDC_LIMIT_MACROS // so we get UINT32_MAX etc
 #endif
 
+#ifdef GTA_SWITCH
+#include <switch.h>
+#endif
+
 #include <stdint.h>
 #include <string.h>
 #include <math.h>

src/core/config.h

@@ -319,7 +319,7 @@ enum Config {
 #if !defined(RW_GL3) && defined(_WIN32)
 #define XINPUT
 #endif
-#if defined XINPUT || (defined RW_GL3 && !defined LIBRW_SDL2 && !defined __SWITCH__)
+#if defined XINPUT || (defined RW_GL3 && !defined LIBRW_SDL2 && !defined GTA_SWITCH)
 #define DETECT_JOYSTICK_MENU // Then we'll expect user to enter Controller->Detect joysticks if his joystick isn't detected at the start.
 #endif
 #define DETECT_PAD_INPUT_SWITCH // Adds automatic switch of pad related stuff between controller and kb/m
@@ -439,7 +439,7 @@ enum Config {
 #endif
 
 // Streaming
-#if !defined(_WIN32) && !defined(__SWITCH__)
+#if !defined(_WIN32) && !defined(GTA_SWITCH)
 	//#define ONE_THREAD_PER_CHANNEL // Don't use if you're not on SSD/Flash - also not utilized too much right now(see commented LoadAllRequestedModels in Streaming.cpp)
 	#define FLUSHABLE_STREAMING // Make it possible to interrupt reading when processing file isn't needed anymore.
 #endif
@@ -461,4 +461,9 @@ enum Config {
 #undef PEDS_REPORT_CRIMES_ON_PHONE
 #endif
 
+#ifdef GTA_SWITCH
+	#define IGNORE_MOUSE_KEYBOARD // ignore mouse & keyboard input
+	#define USE_UNNAMED_SEM // named semaphores are unsupported on the switch
+#endif
+
 #endif // VANILLA_DEFINES

src/core/re3.cpp

@@ -45,9 +45,7 @@
 #include "Population.h"
 #include "IniFile.h"
 
-#ifdef DETECT_JOYSTICK_MENU
 #include "crossplatform.h"
-#endif
 
 #ifndef _WIN32
 #include "assert.h"

src/skel/crossplatform.cpp

@@ -198,6 +198,20 @@ char* casepath(char const* path, bool checkPathFirst)
     size_t rl = 0;
 
     DIR* d;
+    char* c;
+
+    #if defined(GTA_SWITCH) || defined(GTA_VITA)
+    if( (c = strstr(p, ":/")) != NULL) // scheme used by some environments, eg. switch, vita
+    {
+        size_t deviceNameOffset = c - p + 3;
+        char* deviceNamePath = (char*)alloca(deviceNameOffset + 1);
+        strlcpy(deviceNamePath, p, deviceNameOffset);
+        deviceNamePath[deviceNameOffset] = 0;
+        d = opendir(deviceNamePath);
+        p = c + 1;
+    }
+    else
+    #endif
     if (p[0] == '/' || p[0] == '\\')
     {
         d = opendir("/");
@@ -212,7 +226,7 @@ char* casepath(char const* path, bool checkPathFirst)
 
     bool cantProceed = false; // just convert slashes in what's left in string, don't correct case of letters(because we can't)
     bool mayBeTrailingSlash = false;
-    char* c;
+
     while (c = strsep(&p, "/\\"))
     {
         // May be trailing slash(allow), slash at the start(avoid), or multiple slashes(avoid)
@@ -279,3 +293,133 @@ char* casepath(char const* path, bool checkPathFirst)
     return out;
 }
 #endif
+
+#ifdef GTA_SWITCH
+/* Taken from glibc */
+char *realpath(const char *name, char *resolved)
+{
+   char *rpath, *dest = NULL;
+   const char *start, *end, *rpath_limit;
+   long int path_max;
+
+   /* As per Single Unix Specification V2 we must return an error if
+      either parameter is a null pointer.  We extend this to allow
+      the RESOLVED parameter to be NULL in case the we are expected to
+      allocate the room for the return value.  */
+   if (!name)
+      return NULL;
+
+   /* As per Single Unix Specification V2 we must return an error if
+      the name argument points to an empty string.  */
+   if (name[0] == '\0')
+      return NULL;
+
+#ifdef PATH_MAX
+   path_max = PATH_MAX;
+#else
+   path_max = pathconf(name, _PC_PATH_MAX);
+   if (path_max <= 0)
+      path_max = 1024;
+#endif
+
+   if (!resolved)
+   {
+      rpath = (char*)malloc(path_max);
+      if (!rpath)
+         return NULL;
+   }
+   else
+      rpath = resolved;
+   rpath_limit = rpath + path_max;
+
+   if (name[0] != '/')
+   {
+      if (!getcwd(rpath, path_max))
+      {
+         rpath[0] = '\0';
+         goto error;
+      }
+      dest = (char*)memchr(rpath, '\0', path_max);
+   }
+   else
+   {
+      rpath[0] = '/';
+      dest = rpath + 1;
+   }
+
+   for (start = end = name; *start; start = end)
+   {
+      /* Skip sequence of multiple path-separators.  */
+      while (*start == '/')
+         ++start;
+
+      /* Find end of path component.  */
+      for (end = start; *end && *end != '/'; ++end)
+         /* Nothing.  */;
+
+      if (end - start == 0)
+         break;
+      else if (end - start == 1 && start[0] == '.')
+         /* nothing */;
+      else if (end - start == 2 && start[0] == '.' && start[1] == '.')
+      {
+         /* Back up to previous component, ignore if at root already.  */
+         if (dest > rpath + 1)
+            while ((--dest)[-1] != '/')
+               ;
+      }
+      else
+      {
+         size_t new_size;
+
+         if (dest[-1] != '/')
+            *dest++ = '/';
+
+         if (dest + (end - start) >= rpath_limit)
+         {
+            ptrdiff_t dest_offset = dest - rpath;
+            char *new_rpath;
+
+            if (resolved)
+            {
+               if (dest > rpath + 1)
+                  dest--;
+               *dest = '\0';
+               goto error;
+            }
+            new_size = rpath_limit - rpath;
+            if (end - start + 1 > path_max)
+               new_size += end - start + 1;
+            else
+               new_size += path_max;
+            new_rpath = (char *)realloc(rpath, new_size);
+            if (!new_rpath)
+               goto error;
+            rpath = new_rpath;
+            rpath_limit = rpath + new_size;
+
+            dest = rpath + dest_offset;
+         }
+
+         dest = (char*)memcpy(dest, start, end - start);
+         *dest = '\0';
+      }
+   }
+   if (dest > rpath + 1 && dest[-1] == '/')
+      --dest;
+   *dest = '\0';
+
+   return rpath;
+
+error:
+   if (!resolved)
+      free(rpath);
+   return NULL;
+}
+
+ssize_t readlink (const char * __path, char * __buf, size_t __buflen)
+{
+   errno = ENOSYS;
+   return -1;
+}
+#endif

src/skel/events.cpp

@@ -821,7 +821,9 @@ PadHandler(RsEvent event, void *param)
 RwBool
 AttachInputDevices(void)
 {
+#ifndef IGNORE_MOUSE_KEYBOARD
 	RsInputDeviceAttach(rsKEYBOARD, KeyboardHandler);
+#endif
 
 	RsInputDeviceAttach(rsPAD, PadHandler);