Mercurial > sdl-ios-xcode
diff include/SDL_pixels.h @ 2275:12ea0fdc0df2
Split out the SDL_rect and SDL_surface functions into their own headers.
Removed unused count from the dirty rect list.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 10 Sep 2007 12:20:02 +0000 |
| parents | 340942cfda48 |
| children | 24a6b3588eac |
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--- a/include/SDL_pixels.h Mon Sep 10 12:11:40 2007 +0000 +++ b/include/SDL_pixels.h Mon Sep 10 12:20:02 2007 +0000 @@ -37,6 +37,10 @@ /* *INDENT-ON* */ #endif +/* Transparency definitions: These define alpha as the opacity of a surface */ +#define SDL_ALPHA_OPAQUE 255 +#define SDL_ALPHA_TRANSPARENT 0 + enum { /* Pixel type */ SDL_PIXELTYPE_UNKNOWN, @@ -330,6 +334,54 @@ */ extern DECLSPEC void SDLCALL SDL_FreePalette(SDL_Palette * palette); +/** + * \fn Uint32 SDL_MapRGB(const SDL_PixelFormat *format, + * Uint8 r, Uint8 g, Uint8 b) + * + * \brief Maps an RGB triple to an opaque pixel value for a given pixel format + * + * \sa SDL_MapRGBA + */ +extern DECLSPEC Uint32 SDLCALL SDL_MapRGB(const SDL_PixelFormat * format, + Uint8 r, Uint8 g, Uint8 b); + +/** + * \fn Uint32 SDL_MapRGBA(const SDL_PixelFormat *fmt, + * Uint8 r, Uint8 g, Uint8 b, Uint8 a) + * + * \brief Maps an RGBA quadruple to a pixel value for a given pixel format + * + * \sa SDL_MapRGB + */ +extern DECLSPEC Uint32 SDLCALL SDL_MapRGBA(const SDL_PixelFormat * format, + Uint8 r, Uint8 g, Uint8 b, + Uint8 a); + +/** + * \fn void SDL_GetRGB(Uint32 pixel, const SDL_PixelFormat * format, + * Uint8 * r, Uint8 * g, Uint8 * b) + * + * \brief Maps a pixel value into the RGB components for a given pixel format + * + * \sa SDL_GetRGBA + */ +extern DECLSPEC void SDLCALL SDL_GetRGB(Uint32 pixel, + const SDL_PixelFormat * format, + Uint8 * r, Uint8 * g, Uint8 * b); + +/** + * \fn void SDL_GetRGBA(Uint32 pixel, const SDL_PixelFormat * format, + * Uint8 * r, Uint8 * g, Uint8 * b, Uint8 * a) + * + * \brief Maps a pixel value into the RGBA components for a given pixel format + * + * \sa SDL_GetRGB + */ +extern DECLSPEC void SDLCALL SDL_GetRGBA(Uint32 pixel, + const SDL_PixelFormat * format, + Uint8 * r, Uint8 * g, Uint8 * b, + Uint8 * a); + /* Ends C function definitions when using C++ */ #ifdef __cplusplus /* *INDENT-OFF* */