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

@@ -66,6 +66,34 @@ }
 	}
 }
 
+void Display::pauseDrawing() {
+	if (m_drawThread) {
+		if (GBAThreadIsActive(m_context)) {
+			GBAThreadInterrupt(m_context);
+			GBASyncSuspendDrawing(&m_context->sync);
+		}
+		QMetaObject::invokeMethod(m_painter, "pause", Qt::BlockingQueuedConnection);
+		if (GBAThreadIsActive(m_context)) {
+			GBASyncResumeDrawing(&m_context->sync);
+			GBAThreadContinue(m_context);
+		}
+	}
+}
+
+void Display::unpauseDrawing() {
+	if (m_drawThread) {
+		if (GBAThreadIsActive(m_context)) {
+			GBAThreadInterrupt(m_context);
+			GBASyncSuspendDrawing(&m_context->sync);
+		}
+		QMetaObject::invokeMethod(m_painter, "unpause", Qt::BlockingQueuedConnection);
+		if (GBAThreadIsActive(m_context)) {
+			GBASyncResumeDrawing(&m_context->sync);
+			GBAThreadContinue(m_context);
+		}
+	}
+}
+
 void Display::forceDraw() {
 	if (m_drawThread) {
 		QMetaObject::invokeMethod(m_painter, "forceDraw", Qt::QueuedConnection);
@@ -182,3 +210,14 @@ m_gl->swapBuffers();
 	m_gl->doneCurrent();
 	m_gl->context()->moveToThread(QApplication::instance()->thread());
 }
+
+void Painter::pause() {
+	m_drawTimer->stop();
+	// Make sure both buffers are filled
+	forceDraw();
+	forceDraw();
+}
+
+void Painter::unpause() {
+	m_drawTimer->start();
+}

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

@@ -19,6 +19,8 @@
 public slots:
 	void startDrawing(const uint32_t* buffer, GBAThread* context);
 	void stopDrawing();
+	void pauseDrawing();
+	void unpauseDrawing();
 	void forceDraw();
 #ifdef USE_PNG
 	void screenshot();
@@ -49,6 +51,8 @@ void forceDraw();
 	void draw();
 	void start();
 	void stop();
+	void pause();
+	void unpause();
 	void resize(const QSize& size);
 
 private:

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

@@ -52,6 +52,8 @@ connect(m_controller, SIGNAL(gameStarted(GBAThread*)), this, SLOT(gameStarted(GBAThread*)));
 	connect(m_controller, SIGNAL(gameStopped(GBAThread*)), m_display, SLOT(stopDrawing()));
 	connect(m_controller, SIGNAL(gameStopped(GBAThread*)), this, SLOT(gameStopped()));
 	connect(m_controller, SIGNAL(stateLoaded(GBAThread*)), m_display, SLOT(forceDraw()));
+	connect(m_controller, SIGNAL(gamePaused(GBAThread*)), m_display, SLOT(pauseDrawing()));
+	connect(m_controller, SIGNAL(gameUnpaused(GBAThread*)), m_display, SLOT(unpauseDrawing()));
 	connect(m_controller, SIGNAL(postLog(int, const QString&)), m_logView, SLOT(postLog(int, const QString&)));
 	connect(this, SIGNAL(startDrawing(const uint32_t*, GBAThread*)), m_display, SLOT(startDrawing(const uint32_t*, GBAThread*)), Qt::QueuedConnection);
 	connect(this, SIGNAL(shutdown()), m_display, SLOT(stopDrawing()));