2D performance improvements
greg at chown.ath.cx
Sun Jul 21 21:24:48 PDT 2013
Looks like patch 3 may be too big for this list. I have pushed the
branch to https://github.com/grigorig/xf86-video-ati now.
On 22.07.2013 06:06, Grigori Goronzy wrote:
> This patch series improves performance of 2D rendering for most
> workloads on Evergreen. Cayman support is also in place, but untested.
> It should be quite easy to port all this to R600/R700 hardware, too.
> There are three logical improvements:
> 1) Handling of non-overlapping same-surface Copy operations
> 2) Better solid pixmap support (without scratch pixmaps)
> 3) Acceleration of PictOpOver with component alpha
> Overall, this results in great speedups, particularly if solid pixmaps
> are involved or a lot of text is rendered. I have done some comparisons
> with cairo-perf-traces on AMD E-450, which can be found in .
>  http://i.imgur.com/hED57SD.png
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> xorg-driver-ati at lists.x.org
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