On Sun, Aug 10, 2003 at 02:27:13PM +1000, Carsten Haitzler wrote:
> Would I be correct in the assumption that the only accelerated path for xrender
> is the identity transform (1:1 scale)? all other transforms are done in
> software? (my initial tests here with xfree86 4.3.0 & nvidia's latest drivers
> (as of about a month ago) seem to indicate as much...) (and yes... my drivers
> are using acceleration... GL definitely is). ?

No. About 99% of the drivers don't have any xrender acceleration. I think
only the mga driver does. Although looking furthur the sis has some, but
it seems disabled, and the vmware driver has it too. But that's it.

I guess nvidia do some acceleration in their binary drivers though, as
you've probably found. But it's bad to assume other drivers have xrender
acceleration.

I think the thing that's holding other drivers up in getting furthur xrender
acceleration is that there's no test suite to check that the driver is
doing the right thing. I think Keith Packard mentioned he had intern's
working on a test suite a while ago, but nothing has materialized as far
as I know.

Alan.
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