Mercurial > sdl-ios-xcode
view src/timer/macos/FastTimes.h @ 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 | 74212992fb08 |
children | d910939febfa |
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/* File "FastTimes.h" - Original code by Matt Slot <fprefect@ambrosiasw.com> */ /* Created 4/24/99 - This file is hereby placed in the public domain */ /* Updated 5/21/99 - Calibrate to VIA, add TBR support, renamed functions */ /* Updated 10/4/99 - Use AbsoluteToNanoseconds() in case Absolute = double */ /* Updated 2/15/00 - Check for native Time Manager, no need to calibrate */ /* Updated 3/21/00 - Fixed ns conversion, create 2 different scale factors */ /* Updated 5/03/00 - Added copyright and placed into PD. No code changes */ /* This file is Copyright (C) Matt Slot, 1999-2000. It is hereby placed into the public domain. The author makes no warranty as to fitness or stability */ #ifndef __FAST_TIMES_HEADER__ #define __FAST_TIMES_HEADER__ /* **** **** **** **** **** **** **** **** **** **** **** **** **** **** **** */ /* **** **** **** **** **** **** **** **** **** **** **** **** **** **** **** */ extern void FastInitialize(void); extern UInt64 FastMicroseconds(void); extern UInt64 FastMilliseconds(void); extern StringPtr FastMethod(void); /* **** **** **** **** **** **** **** **** **** **** **** **** **** **** **** */ /* **** **** **** **** **** **** **** **** **** **** **** **** **** **** **** */ #endif /* __FAST_TIMES_HEADER__ */