[Piglit] [PATCH 0/7] Reducing ortho use in shader_runner

[Matt Turner]

We'd like to shrink the window sizes of shader runner when running in
simulation, and ortho tests make it difficult to reason about reducing
the window size.

The following patches fix some tests and test generators to use
non-ortho projections instead. This should allow us to shrink these
tests' window sizes and execute them faster. They reduce the number of
occurrences of 'ortho' in shader_test files in piglit from 920 to 153.

I have some additional patches that delete these generated tests from
git and move their generators to generated_tests/, but since the
generators are written in bash (I assume?) they're really slow. I'm
not sure if it's worth it, but we would remove 60k lines of generated
code from piglit.

(I'm not sending out patches containing the regenerated tests, for
obvious reasons)

Thanks,
Matt