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OpenSolaris 2009.06 - man page for sdl_maprgba (opensolaris section 3)

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SDL_MapRGBA(3)				SDL API Reference			   SDL_MapRGBA(3)

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

SDL				      Tue 11 Sep 2001, 23:01			   SDL_MapRGBA(3)
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