Bug 85352

Summary:	[NVC0/Gallium] Scaling/centering issue in shadertoy shader
Product:	Mesa	Reporter:	Ilia Mirkin <imirkin>
Component:	Drivers/DRI/nouveau	Assignee:	Nouveau Project <nouveau>
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	medium
Version:	git
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:

Description Ilia Mirkin 2014-10-23 04:56:48 UTC

https://www.shadertoy.com/view/4sf3Dj

The GameCube logo should be centered. Instead of a NVC1 + 10.3 (and also -git) it appears to be centered around the upper left corner and scaled/stretched. Confirmed to work OK on i965 and radeonsi, so most likely a nouveau issue.

Comment 1 Tobias Klausmann 2014-10-23 13:27:32 UTC

I can reproduce that here. Lets see what causes this... Oh its actually you, nevertheless posting this comment now :)

Comment 2 Ilia Mirkin 2015-07-04 22:21:10 UTC

This appears to be fixed by

commit ad62ec8316a926682958e7ab52639992867c3755
Author: Ilia Mirkin <imirkin@alum.mit.edu>
Date:   Fri Jun 26 15:01:22 2015 -0400

    nv50/ir: propagate modifier to right arg when const-folding mad

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