On Mon, 13 Sep 2010 10:37:08 -0400, Alex Deucher <alexdeuc...@gmail.com> wrote: > On Mon, Sep 13, 2010 at 10:29 AM, Matt Turner <matts...@gmail.com> wrote: > > On Mon, Sep 13, 2010 at 4:06 AM, Marc Scherer <marc.sche...@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.pack...@intel.com
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