Bug 12132

Summary:	occlusion query should return the number of samples passed depth test
Product:	Mesa	Reporter:	Shuang He <shuang.he>
Component:	Drivers/DRI/i965	Assignee:	Zou Nan hai <nanhai.zou>
Status:	VERIFIED FIXED	QA Contact:
Severity:	normal
Priority:	medium	CC:	dri-devel
Version:	unspecified
Hardware:	Other
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:
Attachments:	test case

Description Shuang He 2007-08-24 00:45:38 UTC

on G965 and GM965
occlusion query doesn't return the correct number of smaples that passed depth test
it works for non-dri mode.

Comment 1 Shuang He 2007-08-24 00:54:01 UTC

Created attachment 11251 [details]
test case

this is a simple test case
you can also found this issue by:
./glean -r result -t occluQry

Comment 2 Zou Nan hai 2007-09-24 19:08:59 UTC

I can not reproduce on my GM965 machine with the attached program

Comment 3 Shuang He 2007-09-24 21:39:02 UTC

on my G965 machine, I got results like following:
number of samples passed depth test = 134758680
should be 900

but in non-DRI mode, it gets:
number of samples passed depth test = 900
should be 900

Comment 4 Shuang He 2007-09-25 00:36:36 UTC

seems commit(be3099f26547f48066bbdd7a36578b54da9170b4) brings in this issue

Comment 5 Zou Nan hai 2007-09-25 19:07:40 UTC

fixed in mesa commit 395b3bf6f95b35a84a74d4baf7e04bc67cf3771c

Comment 6 Shuang He 2007-09-26 02:14:00 UTC

verified on both 32bit and 64bit

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