On Fri, Oct 21, 2016 at 08:19:03PM +0200, Daniel Vetter wrote: > On Fri, Oct 21, 2016 at 01:57:28PM +0100, Chris Wilson wrote: > > I think of a use for sending an empty clip: where you don't want to > > push any new pixel data, but you do want to be sure that the pipeline > > has been flushed. > > What exactly should an empty rectangle flush out? It's a bit unclear, but > for speed I guess drivers should be allowed to make dirty async ... No idea! I'm just speculating that I can see a use for a dirtyfb barrier even with an empty cliprect. Empty clips are a useful distinction elsewhere that I would suggest not forbidding them outright but defining their behaviour. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
