[Mesa-dev] [PATCH 1/4] i965: Also examine _BaseFormat when deciding to perform xRGB_alpha fixups

Carl Worth cworth at cworth.org
Tue Jan 22 14:54:27 PST 2013

Carl Worth <cworth at cworth.org> writes:
> Note: The test results mentioned here, (and in the following patches), expect
> the fixes I recently submitted to the fbo-* tests in piglit. That series
> consists of 5 patches starting with:

While developing this patch series, I did most of my testing with the
fbo-* tests mentioned above. I had meant to do a more-inclusive run of
piglit tests before sending this series out, but I forgot to do that.

I've just completed that testing and found the following two changes
which are not mentioned in my emails for this patch series:

1. shaders/glsl-fs-user-varying-if

	This test changes from FAIL to PASS with my patch series. The
	output says:

		"Probe at (.., ..)" returning mismatched results is expected and correct.
		Probe at (15,15)
		  Expected: 0.000000 1.000000 0.000000
		  Observed: 0.000000 0.000000 1.000000

	I'm not familiar with this test, so without looking closer at
	it, I don't know what the above means nor whether the PASS
	result is legitimate based on my changes.

2. EXT_texture_integer/texture_integer_glsl130

	This test changes from PASS to FAIL. The output is:

		texture-integer: failure with format GL_RG8I:
		  texture color = 71, 55, 112, 0
		  expected color = 0.25, 0.5, 0, 0
		  result color = 0.25098, 0.501961, 0, 1

	Again, I haven't looked at this test closely yet, but here, at
	least, the new results do seem consistent with my patch series,
	(alpha changing from 0 to 1 for an RG format). Perhaps the test
	should be updated?

Any feedback from anyone with more knowledge of these two tests would be


carl.d.worth at intel.com
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