Mercurial > sdl-ios-xcode
view src/video/Xext/README @ 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 | b87d8d4c205d |
children |
line wrap: on
line source
The reason these libraries are built outside of the standard XFree86 tree is so that they can be linked as shared object code directly into SDL without causing any symbol collisions with code in the application. You can't link static library code into shared libraries on non-x86 Linux platforms. Since these libraries haven't become standard yet, we'll just include them directly. These sources are synchronized with XFree86 4.2.1