Is XAA still supported in recent and future xserver?

[Keith Packard]

On Mon, 13 Sep 2010 10:37:08 -0400, Alex Deucher <alexdeucher at gmail.com> wrote:
> On Mon, Sep 13, 2010 at 10:29 AM, Matt Turner <mattst88 at gmail.com> wrote:
> > On Mon, Sep 13, 2010 at 4:06 AM, Marc Scherer <marc.scherer at mp-ndt.de> wrote:
> >> We are using the siliconmotion video driver and the performance on a
> >> xserver dated June 2009 was better with XAA than with EXA.
> >>
> >> Since I am just starting again to work on the driver: will XAA be
> >> available and supported in the near future?
> >>
> >> Thanks for comments,
> >>
> >> Marc
> >
> > Yeah, XAA is still there. Too many older DDXs only support XAA to
> > think about removing it.
> >
> 
> That said, it's not seen active development in years and has
> bit-rotted in a number of areas resulting in various bits of
> functionality being disabled (offscreen pixmaps for example).

Frankly, the lack of off-screen pixmaps is probably the principle reason
XAA is faster than EXA for so many chips -- modern desktop apps
generally draw everything off-screen then blt on-screen (and this is
always true with Composite), so you're getting pure CPU rendering
instead of an ugly mixture of CPU and GPU rendering.

-- 
keith.packard at intel.com
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: not available
URL: <http://lists.x.org/archives/xorg-devel/attachments/20100913/e6734818/attachment.pgp>