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From Patrice Mandin: "Just a request about test subdirectory: the autotools files (config.guess, config.sub, etc...) are a bit outdated, and I have to update them for my cross-compilation party. So it would be nice to have these updated. ... Just removing these files works, because then configure will use those of SDL's topdir. Could someone else check this, just to be sure? i.e. remove config.guess, config.sub, install-sh and mkinstalldirs from test subdir." I tested on Linux and MacOSX...seems to be safe, so I'm nuking the files. --ryan.
author Ryan C. Gordon <icculus@icculus.org>
date Sat, 20 Aug 2005 21:39:06 +0000
parents 355632dca928
children
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<HTML
><HEAD
><TITLE
>SDL_GetRGB</TITLE
><META
NAME="GENERATOR"
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"><LINK
REL="HOME"
TITLE="SDL Library Documentation"
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TITLE="SDL_MapRGBA"
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><HR
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><H1
><A
NAME="SDLGETRGB"
></A
>SDL_GetRGB</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN1718"
></A
><H2
>Name</H2
>SDL_GetRGB&nbsp;--&nbsp;Get RGB values from a pixel in the specified pixel format.</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN1721"
></A
><H2
>Synopsis</H2
><DIV
CLASS="FUNCSYNOPSIS"
><A
NAME="AEN1722"
></A
><P
></P
><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>void <B
CLASS="FSFUNC"
>SDL_GetRGB</B
></CODE
>(Uint32 pixel, SDL_PixelFormat *fmt, Uint8 *r, Uint8 *g, Uint8 *b);</CODE
></P
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN1728"
></A
><H2
>Description</H2
><P
>Get RGB component values from a pixel stored in the specified pixel format.</P
><P
>This function uses the entire 8-bit [0..255] range when converting color
components from pixel formats with less than 8-bits per RGB component
(e.g., a completely white pixel in 16-bit RGB565 format would return
[0xff, 0xff, 0xff] not [0xf8, 0xfc, 0xf8]).</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN1732"
></A
><H2
>See Also</H2
><P
><A
HREF="sdlgetrgba.html"
><TT
CLASS="FUNCTION"
>SDL_GetRGBA</TT
></A
>,
<A
HREF="sdlmaprgb.html"
><TT
CLASS="FUNCTION"
>SDL_MapRGB</TT
></A
>,
<A
HREF="sdlmaprgba.html"
><TT
CLASS="FUNCTION"
>SDL_MapRGBA</TT
></A
>,
<A
HREF="sdlpixelformat.html"
><SPAN
CLASS="STRUCTNAME"
>SDL_PixelFormat</SPAN
></A
></P
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