Mercurial > sdl-ios-xcode
view src/thread/SDL_thread_c.h @ 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 | a1b03ba2fcd0 |
children |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2009 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #ifndef _SDL_thread_c_h #define _SDL_thread_c_h /* Need the definitions of SYS_ThreadHandle */ #if SDL_THREADS_DISABLED #include "generic/SDL_systhread_c.h" #elif SDL_THREAD_BEOS #include "beos/SDL_systhread_c.h" #elif SDL_THREAD_DC #include "dc/SDL_systhread_c.h" #elif SDL_THREAD_OS2 #include "os2/SDL_systhread_c.h" #elif SDL_THREAD_PTH #include "pth/SDL_systhread_c.h" #elif SDL_THREAD_PTHREAD #include "pthread/SDL_systhread_c.h" #elif SDL_THREAD_SPROC #include "irix/SDL_systhread_c.h" #elif SDL_THREAD_WIN32 #include "win32/SDL_systhread_c.h" #elif SDL_THREAD_SYMBIAN #include "symbian/SDL_systhread_c.h" #else #error Need thread implementation for this platform #include "generic/SDL_systhread_c.h" #endif #include "../SDL_error_c.h" /* This is the system-independent thread info structure */ struct SDL_Thread { Uint32 threadid; SYS_ThreadHandle handle; int status; SDL_error errbuf; void *data; }; /* This is the function called to run a thread */ extern void SDL_RunThread(void *data); #endif /* _SDL_thread_c_h */