Quartz fix: ut2004 makes a 2D window for the splash screen, which sets the screen surface's pixels field. Then we tear down that video mode and create a GL context, and the Quartz target isn't resetting the pixels field to NULL. When you just create a GL window, the structure is memset'd to zero the first time through, so unless you hit ut2004's codepath, you won't see the bug. :) Without this patch, quitting a windowed ut2003/ut2004 game makes the OS dump a warning about a bogus free() to stderr, but it doesn't actually crash. All we need to do is explicitly initialize the current->pixels field.

.TH "SDL_UnlockYUVOverlay" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" 
.SH "NAME"
SDL_UnlockYUVOverlay\- Unlock an overlay
.SH "SYNOPSIS"
.PP
\fB#include "SDL\&.h"
.sp
\fBvoid \fBSDL_UnlockYUVOverlay\fP\fR(\fBSDL_Overlay *overlay\fR);
.SH "DESCRIPTION"
.PP
The opposite to \fI\fBSDL_LockYUVOverlay\fP\fR\&. Unlocks a previously locked overlay\&. An overlay must be unlocked before it can be displayed\&.
.SH "SEE ALSO"
.PP
\fI\fBSDL_UnlockYUVOverlay\fP\fR, \fI\fBSDL_CreateYUVOverlay\fP\fR, \fI\fBSDL_Overlay\fR\fR
...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01