[Piglit] Modify layered-blit to reveal potential i965/blorp bug

[Topi Pohjolainen]

This is really the first patch of series, the rest are just
something that in my opinion made the test easier to read and
understand.

Topi Pohjolainen (8):
  layered-rendering/blit: use color other than the default red
  layered-rendering/blit: adding missing whitespace
  layered-rendering/blit: remove redundant constant (texelsPerLayer)
  layered-rendering/blit: remove redundant constant (floatPerLayer)
  layered-rendering/blit: specify the final fb grid using tex dimensions
  layered-rendering/blit: declare compile time constants as static
  layered-rendering/blit: remove redundant tex parameters settings
  layered-rendering/blit: remove redundant constants

 tests/spec/gl-3.2/layered-rendering/blit.c | 121 +++++++++++++----------------
 1 file changed, 55 insertions(+), 66 deletions(-)

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1.8.3.1