Carl Worth wrote: > On Thu, 2009-04-16 at 17:56 +0100, Barry Scott wrote: > >> The code you have to prevent tearing will only work without compositing. >> > > Yes, I just verified that if I simply start xcompmgr then I get tearing > once again. > > >> What is needed is a change to the compositing app to avoid the tearing. >> Which I think you might have exposed the hooks to with the sync to scan line >> stuff, so long as that is independent of XV. >> > > Actually, I don't think there's anything exposed yet here that the > application can get at. So we'll need to think a bit about how to get > arbitrary applications to ask for and get tear-free behavior. > > But yes, the scanline-based waiting will be very useful, so we just need > to find a good way to let applications get at this. > > The other feature you have that we might used to solve this problem is the "swap buffers" stuff.
Barry _______________________________________________ xorg mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/xorg
