[Piglit] [PATCH 5/5] textureGather: Use piglit_probe_rect_rgba_varying

[Eric Anholt]

Jason Ekstrand <jason at jlekstrand.net> writes:

> Instead of doing 900 piglit_proble_pixel_rgba calls (one for each pixel)
> which each call glReadPixels, use the new helper which only invokes
> glReadPixels once.

This series is:

Reviewed-by: Eric Anholt <eric at anholt.net>
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