[Mesa3d-dev] [PATCH] glGet: Optimize glGet calls by avoiding redundant state updates

[Robert B. <bo...@o-...>]

Hi,

Every now and then while working on the Clutter toolkit we end up with
glGet{Integer,Float}v in our profiles. Our typical response is to simply
cache the offending state so as to avoid querying OpenGL, but it feels
like this is papering over the problem. 

I've attached a patch that instead tries to address the performance
problem in Mesa and hoping something like this could be accepted
upstream?

kind regards,
- Robert
-- 
Robert Bragg, Intel Open Source Technology Center