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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 355632dca928
children
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<HTML
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>SDL_LoadBMP</TITLE
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>SDL_LoadBMP</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN1989"
></A
><H2
>Name</H2
>SDL_LoadBMP&nbsp;--&nbsp;Load a Windows BMP file into an SDL_Surface.</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN1992"
></A
><H2
>Synopsis</H2
><DIV
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><A
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></A
><P
></P
><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>SDL_Surface *<B
CLASS="FSFUNC"
>SDL_LoadBMP</B
></CODE
>(const char *file);</CODE
></P
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><DIV
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><H2
>Description</H2
><P
>Loads a surface from a named Windows BMP file.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN2002"
></A
><H2
>Return Value</H2
><P
>Returns the new surface, or <TT
CLASS="LITERAL"
>NULL</TT
> 
if there was an error.</P
></DIV
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