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Co-authored-by: Ozkan Sezer <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,115 @@ | ||
| /* | ||
| SDL_image: An example image loading library for use with SDL | ||
| Copyright (C) 1997-2021 Sam Lantinga <[email protected]> | ||
| This software is provided 'as-is', without any express or implied | ||
| warranty. In no event will the authors be held liable for any damages | ||
| arising from the use of this software. | ||
| Permission is granted to anyone to use this software for any purpose, | ||
| including commercial applications, and to alter it and redistribute it | ||
| freely, subject to the following restrictions: | ||
| 1. The origin of this software must not be misrepresented; you must not | ||
| claim that you wrote the original software. If you use this software | ||
| in a product, an acknowledgment in the product documentation would be | ||
| appreciated but is not required. | ||
| 2. Altered source versions must be plainly marked as such, and must not be | ||
| misrepresented as being the original software. | ||
| 3. This notice may not be removed or altered from any source distribution. | ||
| */ | ||
|
|
||
| /* This file use QOI library: | ||
| * https://github.com/phoboslab/qoi | ||
| */ | ||
|
|
||
| #include "SDL_image.h" | ||
|
|
||
| #ifdef LOAD_QOI | ||
|
|
||
| #define QOI_MALLOC(sz) SDL_malloc(sz) | ||
| #define QOI_FREE(p) SDL_free(p) | ||
| #define QOI_ZEROARR(a) SDL_zeroa(a) | ||
|
|
||
| #define QOI_NO_STDIO | ||
| #define QOI_IMPLEMENTATION | ||
| #include "qoi.h" | ||
|
|
||
| /* See if an image is contained in a data source */ | ||
| int IMG_isQOI(SDL_RWops *src) | ||
| { | ||
| Sint64 start; | ||
| int is_QOI; | ||
| char magic[4]; | ||
|
|
||
| if ( !src ) | ||
| return 0; | ||
| start = SDL_RWtell(src); | ||
| is_QOI = 0; | ||
| if ( SDL_RWread(src, magic, sizeof(magic), 1) ) { | ||
| if ( SDL_strncmp(magic, "qoif", 4) == 0 ) { | ||
| is_QOI = 1; | ||
| } | ||
| } | ||
| SDL_RWseek(src, start, RW_SEEK_SET); | ||
| return(is_QOI); | ||
| } | ||
|
|
||
| /* Load a QOI type image from an SDL datasource */ | ||
| SDL_Surface *IMG_LoadQOI_RW(SDL_RWops *src) | ||
| { | ||
| void *data; | ||
| size_t size; | ||
| void *pixel_data; | ||
| qoi_desc image_info; | ||
| SDL_Surface *surface = NULL; | ||
|
|
||
| data = (void *)SDL_LoadFile_RW(src, &size, SDL_FALSE); | ||
| if ( !data ) { | ||
| return NULL; | ||
| } | ||
|
|
||
| pixel_data = qoi_decode(data, size, &image_info, 4); | ||
| SDL_free(data); | ||
| if ( !pixel_data ) { | ||
| IMG_SetError("Couldn't parse QOI image"); | ||
| return NULL; | ||
| } | ||
|
|
||
| surface = SDL_CreateRGBSurface(SDL_SWSURFACE, | ||
| image_info.width, | ||
| image_info.height, | ||
| 32, | ||
| 0x000000FF, | ||
| 0x0000FF00, | ||
| 0x00FF0000, | ||
| 0xFF000000); | ||
| if ( !surface ) { | ||
| SDL_free(pixel_data); | ||
| IMG_SetError("Couldn't create SDL_Surface"); | ||
| return NULL; | ||
| } | ||
|
|
||
| SDL_memcpy(surface->pixels, pixel_data, image_info.width*image_info.height*4); | ||
|
|
||
| return surface; | ||
| } | ||
|
|
||
| #else | ||
| #if _MSC_VER >= 1300 | ||
| #pragma warning(disable : 4100) /* warning C4100: 'op' : unreferenced formal parameter */ | ||
| #endif | ||
|
|
||
| /* See if an image is contained in a data source */ | ||
| int IMG_isQOI(SDL_RWops *src) | ||
| { | ||
| return(0); | ||
| } | ||
|
|
||
| /* Load a QOI type image from an SDL datasource */ | ||
| SDL_Surface *IMG_LoadQOI_RW(SDL_RWops *src) | ||
| { | ||
| return(NULL); | ||
| } | ||
|
|
||
| #endif /* LOAD_QOI */ |
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