[Glamor] [PATCH] Fallback to pixman when trapezoid mask is big.

[Michel Dänzer]

On Die, 2012-08-07 at 16:27 +0800, Zhigang Gong wrote: 
> 
> CC to Michel, Would you please test the performance on your platform and
> report the result? The threshold pixman
> size is from testing and should be platform dependent, so they are may not
> the best choice on your platform. 

Well, I suspect the threshold will depend a lot on the specific CPU/GPU
combo with Radeon GPUs.


> Actually this is a tradeoff currently. We want to release version 0.5 soon,
> and want to start development cycle for next
> version shortly. Eventually, we need to optimize the shader and avoid the
> complexy edge detection for each pixels in
> the pixel shader. We may even need to consider different antialiasing
> algorithm.

Sounds good. I have no objections to using Junyan's patch as is for now.


-- 
Earthling Michel Dänzer           |                   http://www.amd.com
Libre software enthusiast         |          Debian, X and DRI developer