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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 e5bc29de3f0a
children 546f7c1eb755
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.TH "SDL_PauseAudio" "3" "Tue 11 Sep 2001, 22:58" "SDL" "SDL API Reference" 
.SH "NAME"
SDL_PauseAudio\- Pauses and unpauses the audio callback processing
.SH "SYNOPSIS"
.PP
\fB#include "SDL\&.h"
.sp
\fBvoid \fBSDL_PauseAudio\fP\fR(\fBint pause_on\fR);
.SH "DESCRIPTION"
.PP
This function pauses and unpauses the audio callback processing\&. It should be called with \fBpause_on\fR=0 after opening the audio device to start playing sound\&. This is so you can safely initialize data for your callback function after opening the audio device\&. Silence will be written to the audio device during the pause\&.
.SH "SEE ALSO"
.PP
\fI\fBSDL_GetAudioStatus\fP\fR, \fI\fBSDL_OpenAudio\fP\fR
...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 22:58