Roland Scheidegger wrote: >> I'm really starting to run out of idea's here, any input would be very >> appreciated. The system is intended as a HTPC connected to a full-HD LCD >> but is pretty useless with the current performance. Fglrx drivers are >> incredible unstable with full-HD and 64-bit platform and also do not >> seem to resolve the tearing issue. >> >> > > Not sure but I think using the fe/re_crtc wait isn't really that robust > as you risk missing entire frames - I'd think only using the vline wait > would be more robust. > I think best easy solution would just be to render the video as a couple > (like 4 or so) of quads (that is, full width but 1/4th the height ( > thought someone suggested that already somewhere?), with the expectation > that the first one is finished rendering after vblank. This ways you'd > only need 1 wait per frame and could just draw those couple of quads > afterwards. > > Roland > > > Thanks for the very helpful hint!
Just adapted the code to wait for WAIT_CRTC_VLINE, display is split in two halves for rendering with two quads. The top part uses lines 540..840 as start/stop, no inversion. Bottom part uses lines 0..300, no inversion. This guarantees 240 lines for rendering of each screen half. This gives full-screen playback with NO-TEARING!!!!! I will clean up and improve the code (right now very raw) with this solution, will post the diffs when done. Thanks, Christiaan. _______________________________________________ xorg-driver-ati mailing list xorg-driver-ati@lists.x.org http://lists.x.org/mailman/listinfo/xorg-driver-ati
