Performance chasing

apps/LoopThroughWithOpenGLCompositing/gl/composite/OpenGLComposite.cpp

@@ -164,6 +164,9 @@ error:
 
 void OpenGLComposite::paintGL(bool force)
 {
+	if (mRuntimeUpdateController)
+		mRuntimeUpdateController->ProcessRuntimeWork();
+
 	if (!force)
 	{
 		if (IsIconic(hGLWnd))
@@ -171,6 +174,12 @@ void OpenGLComposite::paintGL(bool force)
 	}
 
 	const unsigned previewFps = mRuntimeStore ? mRuntimeStore->GetConfiguredPreviewFps() : 30u;
+	if (!force && mVideoBackend && mVideoBackend->ShouldPrioritizeOutputOverPreview())
+	{
+		ValidateRect(hGLWnd, NULL);
+		return;
+	}
+
 	if (!mRenderEngine->TryPresentPreview(force, previewFps, mVideoBackend->OutputFrameWidth(), mVideoBackend->OutputFrameHeight()))
 	{
 		ValidateRect(hGLWnd, NULL);
@@ -261,6 +270,9 @@ bool OpenGLComposite::Start()
 	if (!mRenderEngine->StartRenderThread())
 		return false;
 
+	if (mRuntimeUpdateController)
+		mRuntimeUpdateController->ProcessRuntimeWork();
+
 	if (mVideoBackend->Start())
 		return true;
 
@@ -351,9 +363,6 @@ bool OpenGLComposite::RequestScreenshot(std::string& error)
 
 void OpenGLComposite::renderEffect()
 {
-	if (mRuntimeUpdateController)
-		mRuntimeUpdateController->ProcessRuntimeWork();
-
 	const RenderFrameInput frameInput = BuildRenderFrameInput();
 	RenderFrame(frameInput);
 }