r128 or new card

[Michel Dänzer]

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