[cairo] gallium surface still maintained ?

Enrico Weigelt, metux IT consult enrico.weigelt at gr13.net
Fri Aug 5 09:00:23 UTC 2016

On 05.08.2016 10:35, Enrico Weigelt, metux IT consult wrote:


Oh, could you check whether your driver sets DRM_CAP_DUMB_PREFER_SHADOW.


On my box (w/ an i915) the driver sets this flag, so I'll have to assume
that writing individual bytes going to be slow, and a shadow buffer
should be used, which then is copied over in bursts.

Now the interesting question: how to archieve that ?
Is there some easy way to trace which pixels/regions in a image surface
have been touched ?


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