Initial Commit

common/MMTIMER.CPP

@@ -0,0 +1,76 @@
+#include <common/mmtimer.hpp>
+
+MMTimer::MMTimer(void)
+: mMinResolution(0), mIsOkay(FALSE), mHasTimedEvent(FALSE), mTimerID(0), mIsFirstBreak(TRUE)
+{
+	if(::timeGetDevCaps(&mTimerCapability,sizeof(TIMECAPS)))return;
+  mMinResolution=mTimerCapability.wPeriodMin;
+	if(::timeBeginPeriod(mMinResolution))return;
+  mIsOkay=TRUE;
+}
+
+MMTimer::MMTimer(WORD minResolution)
+: mMinResolution(minResolution), mIsOkay(FALSE), mHasTimedEvent(FALSE), mTimerID(0), mIsFirstBreak(TRUE)
+{
+	if(::timeGetDevCaps(&mTimerCapability,sizeof(TIMECAPS)))return;
+  if(mMinResolution<mTimerCapability.wPeriodMin)mMinResolution=mTimerCapability.wPeriodMin;
+	if(::timeBeginPeriod(mMinResolution))return;
+  mIsOkay=TRUE;
+}
+
+MMTimer::~MMTimer()
+{
+	if(mIsOkay){stopTimer();::timeEndPeriod(mMinResolution);}
+}
+
+bool MMTimer::startTimer(UINT deltaTime)
+{
+	if(!mIsOkay)return false;
+	if(mHasTimedEvent)return false;
+	isFirstBreak(true);
+	if(0==(mTimerID=::timeSetEvent(deltaTime,mMinResolution,(LPTIMECALLBACK)timerProc,(DWORD)this,TIME_PERIODIC)))return false;
+  mHasTimedEvent=true;
+  return true;
+}
+
+bool MMTimer::stopTimer(void)
+{
+	bool returnCode(false);
+
+	if(!mIsOkay)return returnCode;
+	if(!mHasTimedEvent)return returnCode;
+	if(!::timeKillEvent(mTimerID))returnCode=true;
+	isFirstBreak(false);
+  mHasTimedEvent=false;
+	mTimerID=0;
+  return returnCode;
+}
+
+void CALLBACK MMTimer::timerProc(UINT /*wTimerID*/,UINT /*mMsg*/,DWORD dwUser,DWORD /*dummyOne*/,DWORD /*dummyTwo*/)
+{
+	CallbackData callbackData;
+	if(!((MMTimer*)dwUser))return;
+	if(((MMTimer*)dwUser)->isFirstBreak())
+	{
+	  ((MMTimer*)dwUser)->isFirstBreak(FALSE);
+		((MMTimer*)dwUser)->timerStarted();
+	}
+	if(((CallbackData::ReturnType)FALSE)==((MMTimer*)dwUser)->mCallbackPointer.callback(callbackData))
+	{
+	  ((MMTimer*)dwUser)->timerStopped();
+	  ((MMTimer*)dwUser)->stopTimer();
+	}
+  return;
+}
+
+// virtuals
+
+void MMTimer::timerStarted(void)
+{
+  return;
+}
+
+void MMTimer::timerStopped(void)
+{
+  return;
+}