M CHANGES → CHANGES

@@ -11,6 +11,7 @@ - GBA Video: Fix OAM not invalidating after reset (fixes mgba.io/i/1630)
 Other fixes:
  - Qt: Only dynamically reset video scale if a game is running
  - Qt: Fix race condition with proxied video events
+ - Qt: Force OpenGL paint engine creation thread (fixes mgba.io/i/1642)
 
 0.8.0: (2020-01-21)
 Features:

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

@@ -271,6 +271,15 @@ #endif
 
 	m_gl->makeCurrent(m_surface);
 	m_window = new QOpenGLPaintDevice;
+	{
+		// XXX: Qt creates TLS for OpenGL objects in the local thread
+		// We need to prevent that thread from being the painter thread
+		// Qt also caches the engine object on the device if a different
+		// engine is active, so let's make a temporary one
+		QOpenGLPaintDevice* fakeDevice = new QOpenGLPaintDevice;
+		QPainter fakePainter(fakeDevice);
+		m_window->paintEngine();
+	}
 #if defined(_WIN32) && defined(USE_EPOXY)
 	epoxy_handle_external_wglMakeCurrent();
 #endif