I would assume that there is a proper damage protocol in place that would move a "millions of pixels" only when there is an actual change. The only way to avoi

I would assume that there is a proper damage protocol in place that would move a "millions of pixels" only when there is an actual change. The only way to avoid that is to give applications direct access to the front buffer and use a stecil buffer or some form of masks to prevent applications from drawing above each other.