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 .

.TH "SDL_Rect" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" 
.SH "NAME"
SDL_Rect\- Defines a rectangular area
.SH "STRUCTURE DEFINITION"
.PP
.nf
\f(CWtypedef struct{
  Sint16 x, y;
  Uint16 w, h;
} SDL_Rect;\fR
.fi
.PP
.SH "STRUCTURE DATA"
.TP 20
\fBx, y\fR
Position of the upper-left corner of the rectangle
.TP 20
\fBw, h\fR
The width and height of the rectangle
.SH "DESCRIPTION"
.PP
A \fBSDL_Rect\fR defines a rectangular area of pixels\&. It is used by \fI\fBSDL_BlitSurface\fP\fR to define blitting regions and by several other video functions\&.
.SH "SEE ALSO"
.PP
\fI\fBSDL_BlitSurface\fP\fR, \fI\fBSDL_UpdateRect\fP\fR
...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01