[Piglit] [PATCH] Add a test for ARB_map_buffer_alignment

[Eric Anholt]

Ian Romanick <idr at freedesktop.org> writes:

> On 10/28/2012 09:55 AM, Marek Olšák wrote:
>
> There's one other case that's important to test:  GL_WRITE_ONLY mapping 
> of a buffer in-use by the GPU.  On at least some implementations, this 
> would cause a temporary buffer to be allocated using malloc and returned 
> to the application.  See also my reply to your Mesa patch.

Yeah, we'll want to add some similar testing for basically all those
weird combos for ARB_mbr.  For us it was the invalidate-range case.
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