[Bug 78679] Gen4-5 code lost: runtime_check_aads_emit

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=78679

--- Comment #16 from Iago Toral <itoral at igalia.com> ---
(In reply to comment #13)

Thanks for testing:

> With the updated patch I am getting a solid blue back face.

Mmm... we got rid of the noise but the back face should be color-interpolated
so there is still something wrong.  I'd need to narrow the problem down to some
of the features we are using here:

Could you try the following?

1. Disable AA only: Remove glEnable(GL_LINE_SMOOTH)
2. Disable blending only: remove glEnable(GL_BLEND)
3. Disable AA and blending
4. Do 1-3 again but removing also glPolygonMode(GL_FRONT, GL_LINE)

In the meantime, considering that the original code back in the day used JMPI
to implement this in gm45 I'll try to cook a patch that uses this. It did not
work for me in ironlake, but maybe it does for gm45, otherwise I guess it might
have always been broken like this.

> PS:
> I didn't pay attention to it last time, but color interpolation is broken
> for the lines(front face) too, independent of your patch. The lower edge
> flips from red to green during the rotation. I'll attach the screenshots
> just in case...

Yes, that happens in ironlake too, but as you say this was independent from the
patch and is a different problem.

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