@@ -85,6 +85,7 @@ - Qt: Re-enable QtMultimedia on Windows
  - FFmpeg: Return false if a file fails to open
  - FFmpeg: Force MP4 files to YUV420P
  - Qt: Make "Mute" able to be bound to a key
+ - Core: Restore sleep callback
 
 0.5.2: (2016-12-31)
 Bugfixes:

@@ -38,6 +38,7 @@ void* context;
 	void (*videoFrameStarted)(void* context);
 	void (*videoFrameEnded)(void* context);
 	void (*coreCrashed)(void* context);
+	void (*sleep)(void* context);
 };
 
 DECLARE_VECTOR(mCoreCallbacksList, struct mCoreCallbacks);
@@ -51,10 +52,6 @@ };
 
 struct mKeyCallback {
 	uint16_t (*readKeys)(struct mKeyCallback*);
-};
-
-struct mStopCallback {
-	void (*stop)(struct mStopCallback*);
 };
 
 struct mRotationSource {

@@ -62,6 +62,7 @@ ThreadCallback startCallback;
 	ThreadCallback resetCallback;
 	ThreadCallback cleanCallback;
 	ThreadCallback frameCallback;
+	ThreadCallback sleepCallback;
 	void* userData;
 	void (*run)(struct mCoreThread*);
 

@@ -99,7 +99,6 @@ struct VFile* biosVf;
 
 	struct mAVStream* stream;
 	struct mKeyCallback* keyCallback;
-	struct mStopCallback* stopCallback;
 	struct mCoreCallbacksList coreCallbacks;
 
 	enum GBAIdleLoopOptimization idleOptimization;

@@ -120,6 +120,16 @@ }
 	_changeState(thread, THREAD_CRASHED, true);
 }
 
+void _sleep(void* context) {
+	struct mCoreThread* thread = context;
+	if (!thread) {
+		return;
+	}
+	if (thread->sleepCallback) {
+		thread->sleepCallback(thread);
+	}
+}
+
 static THREAD_ENTRY _mCoreThreadRun(void* context) {
 	struct mCoreThread* threadContext = context;
 #ifdef USE_PTHREADS
@@ -143,6 +153,7 @@ struct mCoreCallbacks callbacks = {
 		.videoFrameStarted = _frameStarted,
 		.videoFrameEnded = _frameEnded,
 		.coreCrashed = _crashed,
+		.sleep = _sleep,
 		.context = threadContext
 	};
 	core->addCoreCallbacks(core, &callbacks);

@@ -89,8 +89,6 @@ gba->biosVf = 0;
 
 	gba->stream = NULL;
 	gba->keyCallback = NULL;
-	gba->stopCallback = NULL;
-	gba->stopCallback = NULL;
 	mCoreCallbacksListInit(&gba->coreCallbacks, 0);
 
 	gba->biosChecksum = GBAChecksum(gba->memory.bios, SIZE_BIOS);
@@ -450,11 +448,14 @@ gba->cpu->halted = 1;
 }
 
 void GBAStop(struct GBA* gba) {
-	if (!gba->stopCallback) {
-		return;
+	size_t c;
+	for (c = 0; c < mCoreCallbacksListSize(&gba->coreCallbacks); ++c) {
+		struct mCoreCallbacks* callbacks = mCoreCallbacksListGetPointer(&gba->coreCallbacks, c);
+		if (callbacks->sleep) {
+			callbacks->sleep(callbacks->context);
+		}
 	}
 	gba->cpu->nextEvent = gba->cpu->cycles;
-	gba->stopCallback->stop(gba->stopCallback);
 }
 
 void GBADebug(struct GBA* gba, uint16_t flags) {

@@ -217,18 +217,16 @@ QMetaObject::invokeMethod(controller, "gamePaused", Q_ARG(mCoreThread*, context));
 		}
 	};
 
-	// TODO: Put back
-	/*m_threadContext.stopCallback = [](mCoreThread* context) {
+	m_threadContext.sleepCallback = [](mCoreThread* context) {
 		if (!context) {
-			return false;
+			return;
 		}
 		GameController* controller = static_cast<GameController*>(context->userData);
 		if (!mCoreSaveState(context->core, 0, controller->m_saveStateFlags)) {
-			return false;
+			return;
 		}
 		QMetaObject::invokeMethod(controller, "closeGame");
-		return true;
-	};*/
+	};
 
 	m_threadContext.logger.d.log = [](mLogger* logger, int category, enum mLogLevel level, const char* format, va_list args) {
 		mThreadLogger* logContext = reinterpret_cast<mThreadLogger*>(logger);