[Piglit] test KHR_gl_image v2

[Abdiel Janulgue]

On a side note though:

I've tested this series on both SandyBridge and IvyBridge GPUs.

While fixing the cubemap sharing code in the extension, I've uncovered a 
problem  in SNB, where a few miplevels in cubemap faces are slightly rendered 
incorrectly.  They show the correct colors but a few pixels are off. I'm not 
sure if this is a problem with my code or a bug in cubemap handling in gen6. I 
can also investigate that at some point.

Gen 7 (aka IvyBridge) works perfectly though and all tests pass!

On Friday, January 11, 2013 04:47:00 PM Abdiel Janulgue wrote:
> This test is a bit more comprehensive and now adds cubemap
> support. I've also tried to address the comments.
> 
> Let me know if I still overlooked something. :)
> 
> The series lives on
> git at gitorious.org:mesa3d/piglit.git cubemap_test branch.
> 
> Cheers,
> Abdiel
> --
>  tests/all.tests                                    |    5 +
>  tests/spec/CMakeLists.txt                          |    1 +
>  .../spec/khr_gl_texture_image/CMakeLists.gles2.txt |   17 +
>  tests/spec/khr_gl_texture_image/CMakeLists.txt     |    1 +
>  .../khr_gl_texture_image/khr_gl_texture_image.c    |  403
> ++++++++++++++++++++ 5 files changed, 427 insertions(+)
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