Bug 33625

Summary:	Unpainted bottom of window in STK with latest ZMASK changes and HiZ
Product:	Mesa	Reporter:	gsr.bugs <gsr.bugs>
Component:	Drivers/Gallium/r300	Assignee:	Default DRI bug account <dri-devel>
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	medium
Version:	git
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:

Description gsr.bugs 2011-01-27 15:22:08 UTC

With export RADEON_HYPERZ=y and since "r300g: fix some bugs with zbuffer compression (v4)" db299a9f8244d53d9041fcdbd396a77ebe1f9e3e SuperTuxKart shows a blue or noisy zone in the bottom of the screen, like if it was a broken JPEG. Unsetting the env var makes everything render fine. This is a RV360 card.

Comment 1 Marek Olšák 2011-01-27 16:09:11 UTC

I have fixed the 8x8 compression mode in master. It should fix the bottom of the screen being uninitialized. Please test.

Comment 2 gsr.bugs 2011-01-27 16:44:13 UTC

Trying with "r300g: 8x8-compressed zbuffer can only be point-sampled" baf2a795eb357aaf33fdee166003fa38768cb193. Console prints:
export RADEON_HYPERZ=y -> r300: AA compression: NO, Z compression: YES, HiZ: NO
unset RADEON_HYPERZ    -> r300: AA compression: NO, Z compression: NO, HiZ: NO

The bottom zone seems fixed. Thanks.

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