Mercurial > sdl-ios-xcode
view test/testver.c @ 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 | c203b4a42701 |
children | d93862a3d821 |
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/* Test program to compare the compile-time version of SDL with the linked version of SDL */ #include <stdio.h> #include "SDL.h" int main(int argc, char *argv[]) { SDL_version compiled; /* Initialize SDL */ if ( SDL_Init(0) < 0 ) { fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError()); exit(1); } #ifdef DEBUG fprintf(stderr, "SDL initialized\n"); #endif #if SDL_VERSION_ATLEAST(1, 2, 0) printf("Compiled with SDL 1.2 or newer\n"); #else printf("Compiled with SDL older than 1.2\n"); #endif SDL_VERSION(&compiled); printf("Compiled version: %d.%d.%d\n", compiled.major, compiled.minor, compiled.patch); printf("Linked version: %d.%d.%d\n", SDL_Linked_Version()->major, SDL_Linked_Version()->minor, SDL_Linked_Version()->patch); SDL_Quit(); return(0); }