Added timing options selection combo box to timing window on Qt GUI.

src/drivers/Qt/TimingConf.cpp

@@ -19,6 +19,7 @@
 #include "Qt/input.h"
 #include "Qt/config.h"
 #include "Qt/keyscan.h"
+#include "Qt/throttle.h"
 #include "Qt/fceuWrapper.h"
 #include "Qt/ConsoleWindow.h"
 #include "Qt/TimingConf.h"
@@ -61,7 +62,7 @@ TimingConfDialog_t::TimingConfDialog_t(QWidget *parent)
 {
 	int opt;
 	QVBoxLayout *mainLayout;
-	//QHBoxLayout *hbox;
+	QHBoxLayout *hbox;
 	QGridLayout *grid;
 	QGroupBox   *emuPrioBox, *guiPrioBox;
 
@@ -118,6 +119,17 @@ TimingConfDialog_t::TimingConfDialog_t(QWidget *parent)
 
 	mainLayout->addWidget( guiPrioBox );
 
+	hbox = new QHBoxLayout();
+	timingDevSelBox = new QComboBox();
+	timingDevSelBox->addItem( tr("NanoSleep") , 0 );
+
+#ifdef __linux__
+	timingDevSelBox->addItem( tr("Timer FD")  , 1 );
+#endif
+	hbox->addWidget( new QLabel( tr("Timing Mechanism:") ) );
+	hbox->addWidget( timingDevSelBox );
+	mainLayout->addLayout( hbox );
+
 	setLayout( mainLayout );
 
 	g_config->getOption( "SDL.SetSchedParam", &opt );
@@ -127,6 +139,7 @@ TimingConfDialog_t::TimingConfDialog_t(QWidget *parent)
 	updatePolicyBox();
 	updateSliderLimits();
 	updateSliderValues();
+	updateTimingMech();
 
 	connect( emuSchedPolicyBox   , SIGNAL(activated(int))   , this, SLOT(emuSchedPolicyChange(int))   );
 	connect( emuSchedNiceSlider  , SIGNAL(valueChanged(int)), this, SLOT(emuSchedNiceChange(int))     );
@@ -135,6 +148,7 @@ TimingConfDialog_t::TimingConfDialog_t(QWidget *parent)
 	connect( guiSchedNiceSlider  , SIGNAL(valueChanged(int)), this, SLOT(guiSchedNiceChange(int))     );
 	connect( guiSchedPrioSlider  , SIGNAL(valueChanged(int)), this, SLOT(guiSchedPrioChange(int))     );
 	connect( emuPrioCtlEna       , SIGNAL(stateChanged(int)), this, SLOT(emuSchedCtlChange(int))      );
+	connect( timingDevSelBox     , SIGNAL(activated(int))   , this, SLOT(emuTimingMechChange(int))    );
 }
 //----------------------------------------------------------------------------
 TimingConfDialog_t::~TimingConfDialog_t(void)
@@ -484,3 +498,37 @@ void TimingConfDialog_t::updateSliderLimits(void)
 
 }
 //----------------------------------------------------------------------------
+void TimingConfDialog_t::emuTimingMechChange( int index )
+{
+	int mode;
+
+	if ( consoleWindow == NULL )
+	{
+		return;
+	}
+	fceuWrapperLock();
+
+	mode = timingDevSelBox->itemData( index ).toInt();
+
+	setTimingMode( mode );
+
+	RefreshThrottleFPS();
+
+	g_config->setOption("SDL.EmuTimingMech", mode);
+
+	fceuWrapperUnLock();
+}
+//----------------------------------------------------------------------------
+void TimingConfDialog_t::updateTimingMech(void)
+{
+	int mode = getTimingMode();
+
+	for (int j=0; j<timingDevSelBox->count(); j++)
+	{
+		if ( timingDevSelBox->itemData(j).toInt() == mode )
+		{
+			timingDevSelBox->setCurrentIndex( j );
+		}
+	}
+}
+//----------------------------------------------------------------------------

src/drivers/Qt/TimingConf.h

@@ -41,11 +41,13 @@ class TimingConfDialog_t : public QDialog
 		QSlider    *guiSchedNiceSlider;
 		QLabel     *guiSchedPrioLabel;
 		QLabel     *guiSchedNiceLabel;
+		QComboBox  *timingDevSelBox;
 
 	private:
 		void  updatePolicyBox(void);
 		void  updateSliderLimits(void);
 		void  updateSliderValues(void);
+		void  updateTimingMech(void);
 		void  saveValues(void);
 
    public slots:
@@ -58,5 +60,6 @@ class TimingConfDialog_t : public QDialog
 		void guiSchedNiceChange( int val );
 		void guiSchedPrioChange( int val );
 		void guiSchedPolicyChange( int index );
+		void emuTimingMechChange( int index );
 
 };

src/drivers/Qt/config.cpp

@@ -322,6 +322,7 @@ InitConfig()
 	config->addOption("_guiSchedPolicy"     , "SDL.GuiSchedPolicy", 0);
 	config->addOption("_guiSchedNice"       , "SDL.GuiSchedNice"  , 0);
 	config->addOption("_guiSchedPrioRt"     , "SDL.GuiSchedPrioRt", 40);
+	config->addOption("_emuTimingMech"      , "SDL.EmuTimingMech" , 0);
 
 	// fcm -> fm2 conversion
 	config->addOption("fcmconvert", "SDL.FCMConvert", "");

src/drivers/Qt/fceuWrapper.cpp

@@ -737,6 +737,15 @@ int  fceuWrapperInit( int argc, char *argv[] )
 		g_config->getOption("SDL.SubtitleDisplay", &id); 
 		movieSubtitles = id ? true : false;
 	}
+
+	// Emulation Timing Mechanism
+	{
+		int timingMode;
+
+		g_config->getOption("SDL.EmuTimingMech", &timingMode);
+
+		setTimingMode( timingMode );
+	}
 	
 	// load the hotkeys from the config life
 	setHotKeys();

src/drivers/Qt/sdl-throttle.cpp

@@ -47,7 +47,7 @@ double getHighPrecTimeStamp(void)
 }
 
 #ifdef __linux__
-static char useTimerFD = 1;
+static char useTimerFD = 0;
 static int  timerfd = -1;
 
 static void setTimer( double hz )
@@ -83,7 +83,7 @@ static void setTimer( double hz )
 		perror("timerfd_settime failed: ");
 	}
 
-	printf("Timer Set: %li ns\n", ispec.it_value.tv_nsec );
+	//printf("Timer Set: %li ns\n", ispec.it_value.tv_nsec );
 
 	Lasttime = getHighPrecTimeStamp();
 	Nexttime = Lasttime + desired_frametime;
@@ -91,6 +91,25 @@ static void setTimer( double hz )
 }
 #endif
 
+int getTimingMode(void)
+{
+#ifdef __linux__
+	if ( useTimerFD )
+	{
+		return 1;
+	}
+#endif
+	return 0;
+}
+
+int setTimingMode( int mode )
+{
+#ifdef __linux__
+	useTimerFD = (mode == 1);
+#endif
+	return 0;
+}
+
 /* LOGMUL = exp(log(2) / 3)
  *
  * This gives us a value such that if we do x*=LOGMUL three times,

src/drivers/Qt/throttle.h

@@ -1,2 +1,5 @@
-void RefreshThrottleFPS();
+// throttle.h
 int SpeedThrottle(void);
+void RefreshThrottleFPS(void);
+int getTimingMode(void);
+int setTimingMode(int mode);