Get glbench passing.

Add clears to ensure we don't rely on previous test rendering.

Remove reference images for cases that were correct only without clears.

Add reference images for new results with clears.

Remove known bad images that coincidentally reflect the new norm.

Set the clear color to to preserve green frame edges in YUV shader tests.

BUG=chrome-os-partner:11731
TEST=Passes on i915, Sandy Bridge and Arm.

Change-Id: Iaaa0b73d623d25bcfcfc041907028986126c913c
Reviewed-on: https://gerrit.chromium.org/gerrit/30495
Reviewed-by: Ilja H. Friedel <ihf@chromium.org>
Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>
Commit-Ready: Stuart Abercrombie <sabercrombie@chromium.org>
Tested-by: Stuart Abercrombie <sabercrombie@chromium.org>
34 files changed
tree: 570e48e6933e2a6c8c92e3f9c66456d7198f7613
  1. glbench_knownbad_images/
  2. glbench_reference_images/
  3. README