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Diffstat (limited to 'distrib/sdl-1.2.15/docs/man3/SDL_MapRGBA.3')
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diff --git a/distrib/sdl-1.2.15/docs/man3/SDL_MapRGBA.3 b/distrib/sdl-1.2.15/docs/man3/SDL_MapRGBA.3 new file mode 100644 index 0000000..03d78d8 --- /dev/null +++ b/distrib/sdl-1.2.15/docs/man3/SDL_MapRGBA.3 @@ -0,0 +1,22 @@ +.TH "SDL_MapRGBA" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" +.SH "NAME" +SDL_MapRGBA \- Map a RGBA color value to a pixel format\&. +.SH "SYNOPSIS" +.PP +\fB#include "SDL\&.h" +.sp +\fBUint32 \fBSDL_MapRGBA\fP\fR(\fBSDL_PixelFormat *fmt, Uint8 r, Uint8 g, Uint8 b, Uint8 a\fR); +.SH "DESCRIPTION" +.PP +Maps the RGBA color value to the specified pixel format and returns the pixel value as a 32-bit int\&. +.PP +If the format has a palette (8-bit) the index of the closest matching color in the palette will be returned\&. +.PP +If the specified pixel format has no alpha component the alpha value will be ignored (as it will be in formats with a palette)\&. +.SH "RETURN VALUE" +.PP +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 \fBUint16\fP, and similarly a \fBUint8\fP for an 8-bpp format)\&. +.SH "SEE ALSO" +.PP +\fISDL_GetRGB\fR, \fISDL_GetRGBA\fR, \fISDL_MapRGB\fR, \fISDL_PixelFormat\fR +.\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01 |