Re: [AD] [test scaled rotate 5] failure

[John Murphy <wonsungi@xxxxxxxxxx>]

All tests pass after updating my Intel GMA 4500 mobile to the latest July 2010 drivers.

I guess it was an Intel bug. The previous drivers were from 2009.

John

On Fri, Oct 8, 2010 at 8:02 PM, Elias Pschernig <elias.pschernig@xxxxxxxxxx> wrote:

On Wed, 2010-10-06 at 22:49 +0900, John Murphy wrote:
> Correct: r13797; [sw] test succeeded:
>
>
> >test_driver -s C:\allegro\allegro.git\tests\test_bitmaps.ini "test
> scaled rotate 5"
> OK   test scaled rotate 5 [sw] - by signature
> FAIL test scaled rotate 5 [hw] - RMS error is 41.2741
> hash_hw=a85e5275
> sig_hw=KWnQdRKMNKTkQYVHIKKQhnYCKINKKWnObRKMKKTjQXXKJKKQhnYKJJKKKWnXYRIKKKTjQYYJKKKQgnYSO
>
>
> total tests:  2
> passed tests: 1
> failed tests: 1
>
>
> http://dl.dropbox.com/u/508947/test_scaled_rotate_5_hw.png
> http://dl.dropbox.com/u/508947/test_scaled_rotate_5_sw.png
>
>

I guess Intel is using float instead of double in their polygon
rasterizer :X If that's true, not much we can do and we may as well have
the test fail on Intel cards. I think Pavel said something similar
happens on ATI cards.

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Elias Pschernig <elias.pschernig@xxxxxxxxxx>

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