Annotated edit history of
SDL_MapRGBA(3) version 2, including all changes.
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SDL_MapRGBA |
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!!!SDL_MapRGBA |
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NAME |
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SYNOPSIS |
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DESCRIPTION |
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RETURN VALUE |
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SEE ALSO |
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---- |
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!!NAME |
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SDL_MapRGBA- Map a RGBA color value to a pixel format. |
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!!SYNOPSIS |
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__#include __ |
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__Uint32 SDL_MapRGBA__(__SDL_!PixelFormat *fmt, Uint8 r, |
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Uint8 g, Uint8 b, Uint8 a__); |
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!!DESCRIPTION |
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Maps the RGBA color value to the specified pixel format and |
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returns the pixel value as a 32-bit int. |
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If the format has a palette (8-bit) the index of the closest |
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matching color in the palette will be returned. |
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If the specified pixel format has no alpha component the |
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alpha value will be ignored (as it will be in formats with a |
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palette). |
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!!RETURN VALUE |
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A pixel value best approximating the given RGBA color value |
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for a given pixel format. If the pixel format bpp (color |
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depth) is less than 32-bpp then the unused upper bits of the |
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return value can safely be ignored (e.g., with a 16-bpp |
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format the return value can be assigned to a __Uint16__, |
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and similarly a __Uint8__ for an 8-bpp |
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format). |
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!!SEE ALSO |
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''SDL_GetRGB'', ''SDL_GetRGBA'', ''SDL_MapRGB'', |
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''SDL_!PixelFormat'' |
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