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Autogenerated full mask checks for pixel format match

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This commit is contained in:
Sam Lantinga 2011-02-19 14:19:15 -08:00
parent 009af96ce0
commit 662a1c6cbd
1 changed files with 133 additions and 70 deletions
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203
src/video/SDL_pixels.c
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@ -236,60 +236,107 @@ SDL_MasksToPixelFormatEnum(int bpp, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask,
{
switch (bpp) {
case 8:
switch (Rmask) {
case 0:
if (Rmask == 0) {
return SDL_PIXELFORMAT_INDEX8;
case 0xE0:
return SDL_PIXELFORMAT_RGB332;
}
if (Rmask == 0xE0 &&
Gmask == 0x1C &&
Bmask == 0x03 &&
Amask == 0x00) {
return SDL_PIXELFORMAT_RGB332
}
break;
case 12:
switch (Rmask) {
case 0x0F00:
return SDL_PIXELFORMAT_RGB444;
if (Rmask == 0) {
return SDL_PIXELFORMAT_RGB444
}
if (Rmask == 0x0F00 &&
Gmask == 0x00F0 &&
Bmask == 0x000F &&
Amask == 0x0000) {
return SDL_PIXELFORMAT_RGB444
}
break;
case 15:
if (Rmask == 0) {
return SDL_PIXELFORMAT_RGB555;
}
if (Rmask == 0x7C00 && Bmask == 0x001F) {
return SDL_PIXELFORMAT_RGB555;
}
if (Rmask == 0x001F && Bmask == 0x7C00) {
return SDL_PIXELFORMAT_BGR555;
}
break;
/* Fall through to 16-bit checks */
case 16:
switch (Rmask) {
case 0:
if (Rmask == 0) {
return SDL_PIXELFORMAT_RGB565;
case 0xF000:
return SDL_PIXELFORMAT_RGBA4444;
case 0x0F00:
return SDL_PIXELFORMAT_ARGB4444;
case 0x00F0:
return SDL_PIXELFORMAT_BGRA4444;
case 0x000F:
return SDL_PIXELFORMAT_ABGR4444;
case 0xF800:
if (Bmask == 0x001F) {
return SDL_PIXELFORMAT_RGB565;
}
break;
case 0x7C00:
if (Bmask == 0x001F) {
return SDL_PIXELFORMAT_RGB555;
}
break;
case 0x001F:
if (Bmask == 0xF800) {
return SDL_PIXELFORMAT_BGR565;
}
if (Bmask == 0x7C00) {
return SDL_PIXELFORMAT_BGR555;
}
break;
}
if (Rmask == 0x7C00 &&
Gmask == 0x03E0 &&
Bmask == 0x001F &&
Amask == 0x0000) {
return SDL_PIXELFORMAT_RGB555
}
if (Rmask == 0x001F &&
Gmask == 0x03E0 &&
Bmask == 0x7C00 &&
Amask == 0x0000) {
return SDL_PIXELFORMAT_BGR555
}
if (Rmask == 0x0F00 &&
Gmask == 0x00F0 &&
Bmask == 0x000F &&
Amask == 0xF000) {
return SDL_PIXELFORMAT_ARGB4444
}
if (Rmask == 0xF000 &&
Gmask == 0x0F00 &&
Bmask == 0x00F0 &&
Amask == 0x000F) {
return SDL_PIXELFORMAT_RGBA4444
}
if (Rmask == 0x000F &&
Gmask == 0x00F0 &&
Bmask == 0x0F00 &&
Amask == 0xF000) {
return SDL_PIXELFORMAT_ABGR4444
}
if (Rmask == 0x00F0 &&
Gmask == 0x0F00 &&
Bmask == 0xF000 &&
Amask == 0x000F) {
return SDL_PIXELFORMAT_BGRA4444
}
if (Rmask == 0x7C00 &&
Gmask == 0x03E0 &&
Bmask == 0x001F &&
Amask == 0x8000) {
return SDL_PIXELFORMAT_ARGB1555
}
if (Rmask == 0xF800 &&
Gmask == 0x07C0 &&
Bmask == 0x003E &&
Amask == 0x0001) {
return SDL_PIXELFORMAT_RGBA5551
}
if (Rmask == 0x001F &&
Gmask == 0x03E0 &&
Bmask == 0x7C00 &&
Amask == 0x8000) {
return SDL_PIXELFORMAT_ABGR1555
}
if (Rmask == 0x003E &&
Gmask == 0x07C0 &&
Bmask == 0xF800 &&
Amask == 0x0001) {
return SDL_PIXELFORMAT_BGRA5551
}
if (Rmask == 0xF800 &&
Gmask == 0x07E0 &&
Bmask == 0x001F &&
Amask == 0x0000) {
return SDL_PIXELFORMAT_RGB565
}
if (Rmask == 0x001F &&
Gmask == 0x07E0 &&
Bmask == 0xF800 &&
Amask == 0x0000) {
return SDL_PIXELFORMAT_BGR565
}
break;
case 24:
@ -309,34 +356,50 @@ SDL_MasksToPixelFormatEnum(int bpp, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask,
#endif
}
case 32:
switch (Rmask) {
case 0xFF000000:
if (Amask == 0x000000FF) {
return SDL_PIXELFORMAT_RGBA8888;
}
break;
case 0:
case 0x00FF0000:
if (Amask == 0xFF000000) {
return SDL_PIXELFORMAT_ARGB8888;
} else {
return SDL_PIXELFORMAT_RGB888;
}
break;
case 0x0000FF00:
if (Amask == 0x000000FF) {
return SDL_PIXELFORMAT_BGRA8888;
}
break;
case 0x000000FF:
if (Amask == 0xFF000000) {
return SDL_PIXELFORMAT_ABGR8888;
} else {
return SDL_PIXELFORMAT_BGR888;
}
break;
case 0x3FF00000:
return SDL_PIXELFORMAT_ARGB2101010;
if (Rmask == 0) {
return SDL_PIXELFORMAT_RGB888;
}
if (Rmask == 0x00FF0000 &&
Gmask == 0x0000FF00 &&
Bmask == 0x000000FF &&
Amask == 0x00000000) {
return SDL_PIXELFORMAT_RGB888
}
if (Rmask == 0x000000FF &&
Gmask == 0x0000FF00 &&
Bmask == 0x00FF0000 &&
Amask == 0x00000000) {
return SDL_PIXELFORMAT_BGR888
}
if (Rmask == 0x00FF0000 &&
Gmask == 0x0000FF00 &&
Bmask == 0x000000FF &&
Amask == 0xFF000000) {
return SDL_PIXELFORMAT_ARGB8888
}
if (Rmask == 0xFF000000 &&
Gmask == 0x00FF0000 &&
Bmask == 0x0000FF00 &&
Amask == 0x000000FF) {
return SDL_PIXELFORMAT_RGBA8888
}
if (Rmask == 0x000000FF &&
Gmask == 0x0000FF00 &&
Bmask == 0x00FF0000 &&
Amask == 0xFF000000) {
return SDL_PIXELFORMAT_ABGR8888
}
if (Rmask == 0x0000FF00 &&
Gmask == 0x00FF0000 &&
Bmask == 0xFF000000 &&
Amask == 0x000000FF) {
return SDL_PIXELFORMAT_BGRA8888
}
if (Rmask == 0x3FF00000 &&
Gmask == 0x000FFC00 &&
Bmask == 0x000003FF &&
Amask == 0xC0000000) {
return SDL_PIXELFORMAT_ARGB2101010
}
}
return SDL_PIXELFORMAT_UNKNOWN;