Mercurial > sdl-ios-xcode
view docs/man3/SDL_CreateThread.3 @ 4168:69bcba65c388 SDL-1.2
Fixed bug #526
Comment #1 From Simon Howard 2009-03-20 16:50:56
Hi,
I'm the author of Chocolate Doom, one of the other source ports that James
mentioned. This is a patch against the current SVN version of SDL 1.2 that
fixes the bug. It has been tested and hopefully should be obviously correct
from examining the changes. I'll give a brief explanation.
When the palette is set with SDL_SetPalette, the IDirectDrawPalette_SetEntries
DirectX function is invoked. However, when this happens, a WM_PALETTECHANGED
message is sent to the window.
A WM_PALETTECHANGED message can also be received if the palette is changed for
some other reason, like if the system palette is changed. Therefore, the
palette change handler (DX5_PaletteChanged) has code to deal with this case.
It distinguishes "expected" palette changes (set with SDL_SetPalette) from
"unexpected" palette changes using the colorchange_expected variable, which is
set before calling IDirectDrawPalette_SetEntries. However, the code to set
this variable is missing in the fullscreen code path. By setting this
variable, the palette change is handled properly and the freezes go away.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Mon, 13 Apr 2009 00:53:12 +0000 |
parents | 4e3b250c950e |
children | 1238da4a7112 |
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.TH "SDL_CreateThread" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference" .SH "NAME" SDL_CreateThread \- Creates a new thread of execution that shares its parent\&'s properties\&. .SH "SYNOPSIS" .PP \fB#include "SDL\&.h" #include "SDL_thread\&.h" .sp \fBSDL_Thread *\fBSDL_CreateThread\fP\fR(\fBint (*fn)(void *), void *data\fR); .SH "DESCRIPTION" .PP \fBSDL_CreateThread\fP creates a new thread of execution that shares all of its parent\&'s global memory, signal handlers, file descriptors, etc, and runs the function \fBfn\fR passed the void pointer \fBdata\fR The thread quits when this function returns\&. .SH "SEE ALSO" .PP \fI\fBSDL_KillThread\fP\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00