3DC format test failures

[Matteo Bruni]

2015-02-12 13:06 GMT+01:00 Stefan Dösinger <stefandoesinger at gmail.com>:
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> Hi Matteo,
>
> I'm getting test failures in test_3dc_formats on various machines. Do
> you have any idea how to change the test without reducing its
> usefulness? It seems that we're seeing all possible swizzles on Windows.
>
> Geforce 9600, Windows 7:
> visual.c:16804: Test failed: Expected color 0x003f3f3f or 0x007f0000,
> got 0x007f7f7f, case 0.
> visual.c:16804: Test failed: Expected color 0x003f3f3f or 0x007f0000,
> got 0x007f7f7f, case 1.
>
> Radeon X1600, Windows 7:
> visual.c:16804: Test failed: Expected color 0x003f3f3f or 0x007f0000,
> got 0x007fffff, case 0.
> visual.c:16804: Test failed: Expected color 0x003f3f3f or 0x007f0000,
> got 0x007fffff, case 1.

Yes, I remember you mentioning that. I wrote a couple patches to
accept those two results too, but I was thinking about ignoring the G
and B components for ATI1N altogether (and do something about the
alpha part) as an alternative.
So essentially those patches got stuck in my private tree. Do you have
a preference on how to fix the test?

> This one smells like an implementation problem: Wine or r300g. Looks
> like the draw fails.
> visual.c:16804: Test failed: Expected color 0x003f3f3f or 0x007f0000,
> got 0x00ff00ff, case 0.
> visual.c:16804: Test failed: Expected color 0x003f3f3f or 0x007f0000,
> got 0x00ff00ff, case 1.

Yes. Maybe ATI1N isn't supported by the HW? I don't remember which
exact r300-class GPU you have but it looks like ATI1N is only
supported on R500+, although AFAICS Mesa correctly doesn't report
ARB_texture_compression_rgtc with older GPUs. Can you check that the
extension (and the EXT_ variant) is or isn't reported as it would be
expected?

Cheers,
Matteo.

>
> Cheers,
> Stefan
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