[Piglit] Faster piglit with probe_rect_*

Eric Anholt eric at anholt.net
Thu Sep 30 15:53:12 PDT 2010

On Wed, 29 Sep 2010 04:37:48 +0200, Marek Olšák <maraeo at gmail.com> wrote:
> Hi,
> I've optimized piglit by reducing the number of glReadPixels calls in tests
> which probe from hundreds to hundreds of thousands of pixels (the fbo tests
> are the worst ones). It touches shader_runner and 26 other tests. The
> quick-driver.tests profile is significantly faster now (especially for GPUs
> which store framebuffers in VRAM). If there are no concerns, I'll merge this
> on thursday evening CEST.

I'm glad someone finally got around to cleaning this up.  Thanks!
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