diff options
Diffstat (limited to 'distrib/sdl-1.2.12/src/timer/wince')
| -rw-r--r-- | distrib/sdl-1.2.12/src/timer/wince/SDL_systimer.c | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/distrib/sdl-1.2.12/src/timer/wince/SDL_systimer.c b/distrib/sdl-1.2.12/src/timer/wince/SDL_systimer.c deleted file mode 100644 index 1e129db..0000000 --- a/distrib/sdl-1.2.12/src/timer/wince/SDL_systimer.c +++ /dev/null @@ -1,198 +0,0 @@ -/* - SDL - Simple DirectMedia Layer - Copyright (C) 1997-2006 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" - -#ifdef SDL_TIMER_WINCE - -#define WIN32_LEAN_AND_MEAN -#include <windows.h> -#include <mmsystem.h> - -#include "SDL_thread.h" -#include "SDL_timer.h" -#include "../SDL_timer_c.h" - -static Uint64 start_date; -static Uint64 start_ticks; - -static Uint64 wce_ticks(void) -{ - return((Uint64)GetTickCount()); -} - -static Uint64 wce_date(void) -{ - union - { - FILETIME ftime; - Uint64 itime; - } ftime; - SYSTEMTIME stime; - - GetSystemTime(&stime); - SystemTimeToFileTime(&stime,&ftime.ftime); - ftime.itime/=10000; // Convert 100ns intervals to 1ms intervals - // Remove ms portion, which can't be relied on - ftime.itime -= (ftime.itime % 1000); - return(ftime.itime); -} - -static Sint32 wce_rel_ticks(void) -{ - return((Sint32)(wce_ticks()-start_ticks)); -} - -static Sint32 wce_rel_date(void) -{ - return((Sint32)(wce_date()-start_date)); -} - -/* Return time in ms relative to when SDL was started */ -Uint32 SDL_GetTicks() -{ - Sint32 offset=wce_rel_date()-wce_rel_ticks(); - if((offset < -1000) || (offset > 1000)) - { -// fprintf(stderr,"Time desync(%+d), resyncing\n",offset/1000); - start_ticks-=offset; - } - - return((Uint32)wce_rel_ticks()); -} - -/* Give up approx. givem milliseconds to the OS. */ -void SDL_Delay(Uint32 ms) -{ - Sleep(ms); -} - -/* Recard start-time of application for reference */ -void SDL_StartTicks(void) -{ - start_date=wce_date(); - start_ticks=wce_ticks(); -} - -static UINT WIN_timer; - -#if ( _WIN32_WCE <= 420 ) - -static HANDLE timersThread = 0; -static HANDLE timersQuitEvent = 0; - -DWORD TimersThreadProc(void *data) -{ - while(WaitForSingleObject(timersQuitEvent, 10) == WAIT_TIMEOUT) - { - SDL_ThreadedTimerCheck(); - } - return 0; -} - -int SDL_SYS_TimerInit(void) -{ - // create a thread to process a threaded timers - // SetTimer does not suit the needs because - // TimerCallbackProc will be called only when WM_TIMER occured - - timersQuitEvent = CreateEvent(0, TRUE, FALSE, 0); - if( !timersQuitEvent ) - { - SDL_SetError("Cannot create event for timers thread"); - return -1; - } - timersThread = CreateThread(NULL, 0, TimersThreadProc, 0, 0, 0); - if( !timersThread ) - { - SDL_SetError("Cannot create timers thread, check amount of RAM available"); - return -1; - } - SetThreadPriority(timersThread, THREAD_PRIORITY_HIGHEST); - - return(SDL_SetTimerThreaded(1)); -} - -void SDL_SYS_TimerQuit(void) -{ - SetEvent(timersQuitEvent); - if( WaitForSingleObject(timersThread, 2000) == WAIT_TIMEOUT ) - TerminateThread(timersThread, 0); - CloseHandle(timersThread); - CloseHandle(timersQuitEvent); - return; -} - -#else - -#pragma comment(lib, "mmtimer.lib") - -/* Data to handle a single periodic alarm */ -static UINT timerID = 0; - -static void CALLBACK HandleAlarm(UINT uID, UINT uMsg, DWORD dwUser, - DWORD dw1, DWORD dw2) -{ - SDL_ThreadedTimerCheck(); -} - - -int SDL_SYS_TimerInit(void) -{ - MMRESULT result; - - /* Set timer resolution */ - result = timeBeginPeriod(TIMER_RESOLUTION); - if ( result != TIMERR_NOERROR ) { - SDL_SetError("Warning: Can't set %d ms timer resolution", - TIMER_RESOLUTION); - } - /* Allow 10 ms of drift so we don't chew on CPU */ - timerID = timeSetEvent(TIMER_RESOLUTION,1,HandleAlarm,0,TIME_PERIODIC); - if ( ! timerID ) { - SDL_SetError("timeSetEvent() failed"); - return(-1); - } - return(SDL_SetTimerThreaded(1)); -} - -void SDL_SYS_TimerQuit(void) -{ - if ( timerID ) { - timeKillEvent(timerID); - } - timeEndPeriod(TIMER_RESOLUTION); -} - -#endif - -int SDL_SYS_StartTimer(void) -{ - SDL_SetError("Internal logic error: WinCE uses threaded timer"); - return(-1); -} - -void SDL_SYS_StopTimer(void) -{ - return; -} - -#endif /* SDL_TIMER_WINCE */ |