[Mesa-dev] Performance glxSwapBuffers 32 bit vs. 64 bit

[Brian Paul]

2011/11/11 Michel Dänzer <michel at daenzer.net>:

> Anyway, I guess there's room for optimization in glReadPixels...

Ingo, if you could find out what the format/type parameters to
glReadPixels are, we could look into some optimization in the state
tracker.  I wouldn't be surprised if there's some channel swizzling or
format conversion going on.

-Brina