Mercurial > sdl-ios-xcode
diff src/timer/wince/SDL_systimer.c @ 1497:420b3f47806d
Fixes from Dmitry Yakimov:
fixed bugs 159 and 160:
+ added threaded timers support
! fixed restoring sdl window focus (AV in windows message handler)
! disabled forgotten cdrom and joystick in config file.
* disabled minimizing sdl window while loosing focus.
PocketPC does not have a task bar, so it is an inconvenient and unusual
behaviour for PPC users.
+ added WIN_Paint handler for GAPI
! fixed loosing focus while using GAPI videi driver
+ added TestTimer project
* removed unnecessary macros (ENABLE_WINDIB ...) from projects
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sat, 11 Mar 2006 23:46:45 +0000 |
parents | bb6839704ed6 |
children | 92947e3a18db |
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--- a/src/timer/wince/SDL_systimer.c Sat Mar 11 23:44:21 2006 +0000 +++ b/src/timer/wince/SDL_systimer.c Sat Mar 11 23:46:45 2006 +0000 @@ -25,6 +25,7 @@ #include <windows.h> #include <mmsystem.h> +#include "SDL_thread.h" #include "SDL_timer.h" #include "../SDL_timer_c.h" @@ -91,53 +92,103 @@ 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) { - return(0); + // 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; } -/* Forward declaration because this is called by the timer callback */ -int SDL_SYS_StartTimer(void); +#else + +#pragma comment(lib, "mmtimer.lib") + +/* Data to handle a single periodic alarm */ +static UINT timerID = 0; -static VOID CALLBACK TimerCallbackProc(HWND hwnd, UINT uMsg, UINT idEvent, DWORD dwTime) +static void CALLBACK HandleAlarm(UINT uID, UINT uMsg, DWORD dwUser, + DWORD dw1, DWORD dw2) { - Uint32 ms; + SDL_ThreadedTimerCheck(); +} + + +int SDL_SYS_TimerInit(void) +{ + MMRESULT result; - ms = SDL_alarm_callback(SDL_alarm_interval); - if ( ms != SDL_alarm_interval ) { - KillTimer(NULL, idEvent); - if ( ms ) { - SDL_alarm_interval = ROUND_RESOLUTION(ms); - SDL_SYS_StartTimer(); - } else { - SDL_alarm_interval = 0; - } + /* 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) { - int retval; - - WIN_timer = SetTimer(NULL, 0, SDL_alarm_interval, TimerCallbackProc); - if ( WIN_timer ) { - retval = 0; - } else { - retval = -1; - } - return retval; + SDL_SetError("Internal logic error: WinCE uses threaded timer"); + return(-1); } void SDL_SYS_StopTimer(void) { - if ( WIN_timer ) { - KillTimer(NULL, WIN_timer); - WIN_timer = 0; - } + return; } -