[Intel-gfx] Accel question for i965

[Eric Anholt]

On Fri, 2009-03-06 at 16:29 +0100, Lukas Hejtmanek wrote:
> Hello,
> 
> why this operation is not supported?
> 
> Component alpha not supported with source alpha and source value blending.
> 
> it seems that this fallback is used many times with x11perf -aa10text.
> 
> Is there any chance to get it supported?

It falls back to a two-pass system that is accelerated.  Until hardware
has programmable blending, it's the best known way of doing accelerated
component alpha.

> And is there any change to support get_image operation accelerated?

Sort of -- we could blit the contents to a new BO, and map the BO
cached.  It may or may not be a win.

-- 
Eric Anholt
eric at anholt.net                         eric.anholt at intel.com


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