> >Maybe we could even have the chip display the overlay out of AGP memory >directly?
ATI doesn't recommend that. The refresh rate of the screen is high enough that if you display from AGP memory, you'll cause a hell lot more throughput on the bus than with a single blit. > >> >> >Anyway, I don't see any explicit synchronisation in the driver, so >> >> >probably the problem is the players calling XSync(). >> >> >> >> Well, do we wait for DMA to finish or not ? If we do, then we are >> >> doing explicit sync. >> > >> >Again, I don't see that in the driver, but maybe I'm just blind. >> >> Could be implicit as part as a wait for engine ready or a 2D sync, > >That's exactly what I looked for but didn't see. :) > >> though I yet have to look at the impl. We should try to figure out >> where X is actually spending those cycles. > >Yep, someone who cares about this will have to do that. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
