Date: Tue, 12 Aug 2003 14:26:19 +0200 (MEST) From: "Mattias Engdeg?rd" Subject: bug in SDL_GetRGB/GetRGBA There's an embarrassing bug in GetRGB/GetRGBA which apparently has been there for years. It incorrectly converts colours with < 8 bits/channel. It came to my attention today in #sdl. What it does now is (for each channel): rv = (pixel & fmt->Rmask) >> fmt->Rshift; *r = (rv << fmt->Rloss) + (rv >> (8 - fmt->Rloss)); which is wrong; the last line should be *r = (rv << fmt->Rloss) + (rv >> (8 - (fmt->Rloss << 1)));

.TH "SDL_FunctionName" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference" 
.SH "NAME"
SDL_FunctionName\- Short description of function
.SH "SYNOPSIS"
.PP
\fB#include "SDL\&.h"
.sp
\fBreturn type\fBSDL_FunctionName\fP\fR(\fBparameter\fR);
.SH "DESCRIPTION"
.PP
Full description
.SH "EXAMPLES"
.PP
examples here
.SH "SEE ALSO"
.PP
\fISDL_AnotherFunction\fR
...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00