Mercurial > sdl-ios-xcode
view sdl-config.in @ 997:3bf4103b2b89
Date: Sat, 27 Nov 2004 13:35:43 +0100
From: "Martin Bickel"
Subject: [SDL] Patch: fixing uninitilized palette
while running Valgrind over my application I found the following
problem in SDL:
The function MapNto1 allocates SDL_Color colors[256] but does not
initialize it.
SDL_DitherColors is then called which initialized the r, g and b
component, but not the 'unused' component of each color.
When Map1to1 is called from MapNto1, it runs a memcmp on the colors,
which also evaluates the unused component and therefor returns
differences much more often than necessary.
So the 'unused' component of SDL_Color should be initialized. This
patch does this by calling memset for the whole array in MapNto1 .
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Tue, 30 Nov 2004 14:28:20 +0000 |
parents | 674df5617bba |
children | 19418e4422cb |
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#!/bin/sh prefix=@prefix@ exec_prefix=@exec_prefix@ exec_prefix_set=no usage="\ Usage: sdl-config [--prefix[=DIR]] [--exec-prefix[=DIR]] [--version] [--cflags] [--libs] [--static-libs]" if test $# -eq 0; then echo "${usage}" 1>&2 exit 1 fi while test $# -gt 0; do case "$1" in -*=*) optarg=`echo "$1" | sed 's/[-_a-zA-Z0-9]*=//'` ;; *) optarg= ;; esac case $1 in --prefix=*) prefix=$optarg if test $exec_prefix_set = no ; then exec_prefix=$optarg fi ;; --prefix) echo $prefix ;; --exec-prefix=*) exec_prefix=$optarg exec_prefix_set=yes ;; --exec-prefix) echo $exec_prefix ;; --version) echo @SDL_VERSION@ ;; --cflags) echo -I@includedir@/SDL @SDL_CFLAGS@ # The portable way of including SDL is #include "SDL.h" #if test @includedir@ != /usr/include ; then # # Handle oddities in Win32 path handling (assumes prefix) # prefix=`echo ${prefix} | sed 's,^//\([A-Z]\),\1:,'` # # includes=-I@includedir@ #fi #echo $includes -I@includedir@/SDL @SDL_CFLAGS@ ;; @ENABLE_SHARED_TRUE@ --libs) @ENABLE_SHARED_TRUE@ libdirs="-L@libdir@ @SDL_RLD_FLAGS@" @ENABLE_SHARED_TRUE@ echo $libdirs @SDL_LIBS@ @SHARED_SYSTEM_LIBS@ @ENABLE_SHARED_TRUE@ ;; @ENABLE_STATIC_TRUE@@ENABLE_SHARED_TRUE@ --static-libs) @ENABLE_STATIC_TRUE@@ENABLE_SHARED_FALSE@ --libs|--static-libs) @ENABLE_STATIC_TRUE@ libdirs="-L@libdir@ @SDL_RLD_FLAGS@" @ENABLE_STATIC_TRUE@ echo $libdirs @SDL_STATIC_LIBS@ @STATIC_SYSTEM_LIBS@ @ENABLE_STATIC_TRUE@ ;; *) echo "${usage}" 1>&2 exit 1 ;; esac shift done