On 25 Aug 2002, Michel Dänzer wrote: >> >Are there any plans for integrating gatos 2d aacceleration into the xfree6 >> >project's next debian release. >> >> Radeon 2D acceleration is implemented in two different ways. The >> first method, MMIO, is used when DRI is disabled. The second >> way, uses the Radeon CP engine, and is only used when DRI is >> enabled. >> >> The problem though, is that the CP engine 2D code was not as >> fully implemented as the MMIO code was, so earlier XFree86 >> releases will show a slowdown in 2D acceleration when DRI is >> enabled. XFree86 4.2.0 has the situation improved slightly, but >> it still isn't up to par with the MMIO code. Michel Daenzer has >> implemented a bit more of the CP 2D code in DRI-CVS, which brings >> the CP 2D code much closer to the level of the MMIO codepath. > >In fact, on the reinit-0-0-1-branch in DRI CVS, I've brought it up to >par (in terms of accelerated operations - the CP is faster of course :). >I hope this will get into 4.3.0.
Fantastic! >> I've got a patch for 4.2.0 to add the latest code, however it was >> reported as not fully working so I disabled it until I have time >> to debug/troubleshoot. > >Can you be a bit more specific than 'not fully working'? Not currently.. I put the patch in, and did a build.. I got internal complaints X was broken shortly after, so I disabled the patch and rebuilt. Haven't had time to investigate it since. If I get time though, I'll provide feedback. It could be something I screwed up backporting it. >> If anyone wants a copy of the patch, let me know and I'll put it up on FTP. > >I'd be interested to see the patch if there are problems with it. Sure thing.. ftp://people.redhat.com/mharris/testing/bleeding-edge/XFree86/4.2.0-67/raw-sources-patches-specfile/ The patch is: XFree86-4.2.0-ati-radeon-cp-colorexpansion-imagewrite-enhancement.patch Thanks Michel, TTYL -- Mike A. Harris Shipping/mailing address: OS Systems Engineer 190 Pittsburgh Ave., Sault Ste. Marie, XFree86 maintainer Ontario, Canada, P6C 5B3 Red Hat Inc. http://www.redhat.com ftp://people.redhat.com/mharris
