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

@@ -499,7 +499,7 @@ }
 	mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
 		CoreController* controller = static_cast<CoreController*>(context->userData);
 		if (!controller->m_backupLoadState.isOpen()) {
-			controller->m_backupLoadState = VFileMemChunk(nullptr, 0);
+			controller->m_backupLoadState = VFileDevice::openMemory();
 		}
 		mCoreSaveStateNamed(context->core, controller->m_backupLoadState, controller->m_saveStateFlags);
 		if (mCoreLoadState(context->core, controller->m_stateSlot, controller->m_loadStateFlags)) {
@@ -518,7 +518,7 @@ if (!vf) {
 			return;
 		}
 		if (!controller->m_backupLoadState.isOpen()) {
-			controller->m_backupLoadState = VFileMemChunk(nullptr, 0);
+			controller->m_backupLoadState = VFileDevice::openMemory();
 		}
 		mCoreSaveStateNamed(context->core, controller->m_backupLoadState, controller->m_saveStateFlags);
 		if (mCoreLoadStateNamed(context->core, vf, controller->m_loadStateFlags)) {

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

@@ -518,7 +518,7 @@
 void FrameView::refreshVl() {
 	QMutexLocker locker(&m_mutex);
 	m_currentFrame = m_nextFrame;
-	m_nextFrame = VFileMemChunk(nullptr, 0);
+	m_nextFrame = VFileDevice::openMemory();
 	if (m_currentFrame) {
 		m_controller->endVideoLog(false);
 		QMetaObject::invokeMethod(this, "newVl");

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

@@ -78,9 +78,14 @@ VFile* VFileDevice::open(const QString& path, int mode) {
 	return VFileOpen(path.toUtf8().constData(), mode);
 }
 
+VFile* VFileDevice::openMemory() {
+	return VFileMemChunk(nullptr, 0);
+}
+
 VDir* VFileDevice::openDir(const QString& path) {
 	return VDirOpen(path.toUtf8().constData());
 }
+
 VDir* VFileDevice::openArchive(const QString& path) {
 	return VDirOpenArchive(path.toUtf8().constData());
 }

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

@@ -29,6 +29,7 @@ VFileDevice& operator=(VFile*);
 	operator VFile*() { return m_vf; }
 
 	static VFile* open(const QString& path, int mode);
+	static VFile* openMemory();
 	static VDir* openDir(const QString& path);
 	static VDir* openArchive(const QString& path);