[Piglit] [PATCH] readpix-z: asst. test improvements

Eric Anholt eric at anholt.net
Wed Oct 17 16:43:21 PDT 2012

Brian Paul <brianp at vmware.com> writes:

> 1. Do a simple test that glClear(GL_DEPTH_BUFFER_BIT) works as expected.
> 2. Display the depth buffer contents as a grayscale image when not
>    running in automatic mode to aid debugging.

Since we've got lots of tests that clear the depth buffer and rely on it
being cleared, this test doesn't make much sense to me -- if you're
trying to sanity check bit quality of just depth glClear on window
system framebuffers because fbo-clear-formats isn't covering your case,
it seems like you'd want a cross of fbo-clear-formats and
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