Mercurial > sdl-ios-xcode
view src/thread/SDL_systhread.h @ 4392:2b8c1aea633b SDL-1.2
Fixed bug #898
Jeremiah Morris 2009-12-09 16:07:17 PST
No-op GlobalToLocal translations in fullscreen mode
On my MacBook Pro running 10.6, I noticed a small upward bias on mouse movement
in a fullscreen SDL application. The app uses WarpCursor and GetMouseState in a
loop to measure relative movement. I tracked it down to NSWindow's
convertBaseToScreen: routine, which added a 2-pixel offset on the Y coordinate
instead of the expected (+0,+0) translation.
In fullscreen mode, QZ_PrivateWarpCursor() does not translate the desired
position through QZ_PrivateGlobalToLocal() before passing it to the Core
Graphics system. However, QZ_GetMouseLocation() does call the reverse
QZ_PrivateLocalToGlobal() even in fullscreen mode. This asymmetry caused
problems each time the mouse was moved.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Fri, 11 Dec 2009 15:31:37 +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" /* These are functions that need to be implemented by a port of SDL */ #ifndef _SDL_systhread_h #define _SDL_systhread_h #include "SDL_thread.h" /* This function creates a thread, passing args to SDL_RunThread(), saves a system-dependent thread id in thread->id, and returns 0 on success. */ #ifdef SDL_PASSED_BEGINTHREAD_ENDTHREAD extern int SDL_SYS_CreateThread(SDL_Thread *thread, void *args, pfnSDL_CurrentBeginThread pfnBeginThread, pfnSDL_CurrentEndThread pfnEndThread); #else extern int SDL_SYS_CreateThread(SDL_Thread *thread, void *args); #endif /* This function does any necessary setup in the child thread */ extern void SDL_SYS_SetupThread(void); /* This function waits for the thread to finish and frees any data allocated by SDL_SYS_CreateThread() */ extern void SDL_SYS_WaitThread(SDL_Thread *thread); /* This function kills the thread and returns */ extern void SDL_SYS_KillThread(SDL_Thread *thread); #endif /* _SDL_systhread_h */