Bug 94621

Summary:	dEQP-GLES31.functional.texture.gather.basic.cube.* fails
Product:	Mesa	Reporter:	Kenneth Graunke <kenneth>
Component:	Drivers/DRI/i965	Assignee:	Ian Romanick <idr>
Status:	RESOLVED DUPLICATE	QA Contact:	Intel 3D Bugs Mailing List <intel-3d-bugs>
Severity:	normal
Priority:	medium
Version:	git
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:
Bug Depends on:
Bug Blocks:	94448

Description Kenneth Graunke 2016-03-19 08:17:20 UTC

The dEQP-GLES31.functional.texture.gather.basic.cube.* test cases are broken.

Setting the wrap modes to BRW_TEXCOORDMODE_CUBE appears to fix all of them.

The test use GL_NEAREST, so we override the wrap modes to CLAMP.  However, textureGather forces GL_LINEAR filtering (regardless of what's specified), so CUBE may actually be appropriate.

Comment 1 Kenneth Graunke 2016-03-19 08:18:24 UTC

If we do need to re-specify wrap modes based on the message type, this means having to double-emit surface states again...one for normal messages, and one for gather4.  We have code for this, we'd just have to apply it in more cases.

Comment 2 Kenneth Graunke 2016-03-21 19:11:40 UTC

I was wrong - we'd need to emit multiple SAMPLER_STATEs, not SURFACE_STATEs.

Comment 3 Ilia Mirkin 2016-03-22 15:43:53 UTC

Is this the same as bug 94127 which I filed a while back?

Comment 4 Kenneth Graunke 2016-03-22 16:23:01 UTC

Yep, thanks - I knew you filed one, but I didn't manage to dig it up.  We'll add yours to the tracker and close this one as a duplicate.

*** This bug has been marked as a duplicate of bug 94127 ***

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