Bug 95072

Summary:	[wine] Rendering bug in GTA IV
Product:	Mesa	Reporter:	Sven Arvidsson <sa>
Component:	Drivers/Gallium/radeonsi	Assignee:	Default DRI bug account <dri-devel>
Status:	RESOLVED FIXED	QA Contact:	Default DRI bug account <dri-devel>
Severity:	normal
Priority:	medium
Version:	git
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:
Attachments:	screenshot

Description Sven Arvidsson 2016-04-22 16:45:47 UTC

Created attachment 123156 [details]
screenshot

I'm getting a peculiar rendering bug in the game GTA IV (using Wine). The bug could best be described as "christmas lights" (screenshot attached).

Apitrace (439 MB)
https://www.dropbox.com/s/7xto4gmvwkk5ksm/gtaiv.trace?dl=0

The bug happens both with 11.1.2 and recent git 1883613

The trace renders fine with i965 and with software rendering but with a lot of warnings. 

Replaying the trace with radeonsi gives this warning:
16375: message: shader compiler issue 1: Shader Stats: SGPRS: 80 VGPRS: 12 Code Size: 72 LDS: 0 Scratch: 0 Max Waves: 10


System environment:
-- system architecture: 64-bit
-- Linux distribution: Debian unstable
-- GPU: TONGA
-- Model: Asus Strix R9 285 2GB
-- Display connector: DVI
-- xf86-video-amdgpu: 1.1.0
-- xserver: 1.18.3
-- mesa: 
-- drm: 2.4.67
-- kernel: 4.5.0

Comment 1 Nicolai Hähnle 2016-04-25 18:02:24 UTC

Hi Sven, thanks for the bug report. I can indeed reproduce the problem with the apitrace.

Comment 2 Marek Olšák 2016-05-25 18:43:49 UTC

Hi Sven,
I can no longer reproduce this with Mesa git & LLVM git. Can you re-test?

Comment 3 Sven Arvidsson 2016-05-28 18:35:25 UTC

Seems to be working fine with current git master and llvm 3.8. Thanks!

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