On Tue, 2008-06-24 at 11:32 -0700, Corbin Simpson wrote: > > However, on Radeons, Xv is always going to be fastest because it uses 3D > engine code directly, without going through DRI, and it should be quite > suitable for your needs.
I don't think the difference is directly related to the DRI - especially considering that Xv uses the DRM as well when the DRI is enabled. I think it's mostly due to glTex(Sub)Image being inefficient, mostly due to the lack of a real memory manager. In theory, direct rendered GL could be faster than Xv due to less overhead incurred by context switches and data copies. -- Earthling Michel Dänzer | http://tungstengraphics.com Libre software enthusiast | Debian, X and DRI developer _______________________________________________ xorg-driver-ati mailing list [email protected] http://lists.x.org/mailman/listinfo/xorg-driver-ati
