M src/platform/qt/GameController.cpp → src/platform/qt/GameController.cpp

@@ -24,6 +24,8 @@ , m_audioThread(new QThread(this))
 	, m_audioProcessor(new AudioProcessor)
 	, m_videoSync(VIDEO_SYNC)
 	, m_audioSync(AUDIO_SYNC)
+	, m_turbo(false)
+	, m_turboForced(false)
 {
 	m_renderer = new GBAVideoSoftwareRenderer;
 	GBAVideoSoftwareRendererCreate(m_renderer);
@@ -238,15 +240,35 @@ }
 
 void GameController::setVideoSync(bool set) {
 	m_videoSync = set;
-	GBAThreadInterrupt(&m_threadContext);
-	m_threadContext.sync.videoFrameWait = set;
-	GBAThreadContinue(&m_threadContext);
+	if (!m_turbo) {
+		GBAThreadInterrupt(&m_threadContext);
+		m_threadContext.sync.videoFrameWait = set;
+		GBAThreadContinue(&m_threadContext);
+	}
 }
 
 void GameController::setAudioSync(bool set) {
 	m_audioSync = set;
+	if (!m_turbo) {
+		GBAThreadInterrupt(&m_threadContext);
+		m_threadContext.sync.audioWait = set;
+		GBAThreadContinue(&m_threadContext);
+	}
+}
+
+void GameController::setTurbo(bool set, bool forced) {
+	if (m_turboForced && !forced) {
+		return;
+	}
+	m_turbo = set;
+	if (set) {
+		m_turboForced = forced;
+	} else {
+		m_turboForced = false;
+	}
 	GBAThreadInterrupt(&m_threadContext);
-	m_threadContext.sync.audioWait = set;
+	m_threadContext.sync.audioWait = set ? false : m_audioSync;
+	m_threadContext.sync.videoFrameWait = set ? false : m_videoSync;
 	GBAThreadContinue(&m_threadContext);
 }
 

M src/platform/qt/GameController.h → src/platform/qt/GameController.h

@@ -69,6 +69,7 @@ void loadState(int slot);
 	void saveState(int slot);
 	void setVideoSync(bool);
 	void setAudioSync(bool);
+	void setTurbo(bool, bool forced = true);
 
 #ifdef BUILD_SDL
 private slots:
@@ -98,6 +99,8 @@ bool m_pauseAfterFrame;
 
 	bool m_videoSync;
 	bool m_audioSync;
+	bool m_turbo;
+	bool m_turboForced;
 };
 
 }

M src/platform/qt/Window.cpp → src/platform/qt/Window.cpp

@@ -154,6 +154,9 @@ if (event->isAutoRepeat()) {
 		QWidget::keyPressEvent(event);
 		return;
 	}
+	if (event->key() == Qt::Key_Tab) {
+		m_controller->setTurbo(true, false);
+	}
 	GBAKey key = mapKey(event->key());
 	if (key == GBA_KEY_NONE) {
 		QWidget::keyPressEvent(event);
@@ -167,6 +170,9 @@ void Window::keyReleaseEvent(QKeyEvent* event) {
 	if (event->isAutoRepeat()) {
 		QWidget::keyReleaseEvent(event);
 		return;
+	}
+	if (event->key() == Qt::Key_Tab) {
+		m_controller->setTurbo(false, false);
 	}
 	GBAKey key = mapKey(event->key());
 	if (key == GBA_KEY_NONE) {
@@ -358,6 +364,13 @@ connect(setTarget, &QAction::triggered, [this]() { emit fpsTargetChanged(240); });
 	target->addAction(setTarget);
 
 	emulationMenu->addSeparator();
+
+	QAction* turbo = new QAction(tr("T&urbo"), emulationMenu);
+	turbo->setCheckable(true);
+	turbo->setChecked(false);
+	turbo->setShortcut(tr("Shift+Tab"));
+	connect(turbo, SIGNAL(triggered(bool)), m_controller, SLOT(setTurbo(bool)));
+	emulationMenu->addAction(turbo);
 
 	QAction* videoSync = new QAction(tr("Sync to &video"), emulationMenu);
 	videoSync->setCheckable(true);