diff -r ffa851df0825 -r 2fb8b9db1c86 symbian-qemu-0.9.1-12/libsdl-trunk/docs/html/sdlmaprgba.html --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/symbian-qemu-0.9.1-12/libsdl-trunk/docs/html/sdlmaprgba.html Fri Jul 31 15:01:17 2009 +0100 @@ -0,0 +1,242 @@ +SDL_MapRGBA
SDL Library Documentation
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SDL_MapRGBA

Name

SDL_MapRGBA -- Map a RGBA color value to a pixel format.

Synopsis

#include "SDL.h"

Uint32 SDL_MapRGBA(SDL_PixelFormat *fmt, Uint8 r, Uint8 g, Uint8 b, Uint8 a);

Description

Maps the RGBA color value to the specified pixel format and returns the +pixel value as a 32-bit int.

If the format has a palette (8-bit) the index of the closest matching +color in the palette will be returned.

If the specified pixel format has no alpha component the alpha value +will be ignored (as it will be in formats with a palette).

Return Value

A pixel value best approximating the given RGBA color value for a given +pixel format. If the pixel format bpp (color depth) is less than 32-bpp +then the unused upper bits of the return value can safely be ignored +(e.g., with a 16-bpp format the return value can be assigned to a +Uint16, and similarly a Uint8 for an 8-bpp +format).

See Also

SDL_GetRGB, +SDL_GetRGBA, +SDL_MapRGB, +SDL_PixelFormat

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