On 6/7/06, Aapo Tahkola <[EMAIL PROTECTED]> wrote: > On Mon, 22 May 2006 00:02:11 -0400 > "Alex Deucher" <[EMAIL PROTECTED]> wrote: > > > On 5/21/06, Roland Scheidegger <[EMAIL PROTECTED]> wrote: > > > Pawel Salek wrote: > > > > ColorTiling works like a charm: it gives factor two speedup in > > > > glxgears, one can play RTCW at 1280x1024 *and* the random lines > > > > are gone! Is there any reason this option is not the default? > > > I am not sure, maybe it could be made the default by now? > > > Historically, it is off by default because it didn't work on > > > r3xx/r4xx cards (it was always on by default on older chips since > > > it exists), because it wasn't fully implemented. I think it works > > > without problems nowadays on all chips (dunno about the rs400 igps, > > > though). I believe though it caused to lock up the r300/r350 chips > > > even faster (with opengl apps) but that is probably more of a side > > > effect. Someone more familiar with the r300 cards needs to answer > > > that if it should be the default but it sure would be nice - the > > > radeon chips are increasingly relying on this to get good > > > performance (first generation (r1xx) radeon chips roughly gain 20% > > > or so, 2nd generation (r2xx) more like 50%, and 3rd (r3xx/r4xx) > > > 100%). > > > > r3/4xx needs a drm update to make colortiling work with pageflipping > > for non-zero offsets sice they use a slightly different register > > setup. That's why it's been disabled. It's trivial, but no one has > > gotten around to doing it. > > That doesn't prevent you from enabling tiling and forcing pageflipping > disabled. If someone really cares for pageflipping he/she can fix it. > Beyond that its currently broken and it doesn't really improve > performance noticeably. Oh and it doesn't really play well with fbos if > we ever happen to add support for em. >
That's fine. feel free to enable it by default. Alex > -- > Aapo Tahkola > -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
