Bug 12453

Summary:	polygon face culling doesn't work well in DRI mode
Product:	Mesa	Reporter:	Shuang He <shuang.he>
Component:	Drivers/DRI/i965	Assignee:	haihao <haihao.xiang>
Status:	VERIFIED FIXED	QA Contact:
Severity:	normal
Priority:	medium	CC:	dri-devel
Version:	git
Hardware:	Other
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:
Attachments:	test case

Description Shuang He 2007-09-17 00:39:07 UTC

this issue only happens in DRI mode
when FRONT face is set to GL_POINT mode, and BACK face is set to GL_FILL mode
enable GL_CULL_FACE, and cull FRONT face
the expected result is only FRONT face being culled away.
but here we found BACK face is also affected (BACK face change to take the color we set for FRONT face)

Comment 1 Shuang He 2007-09-17 00:43:05 UTC

Created attachment 11598 [details]
test case

we set green for FRONT face, blue for BACK face
after culling the FRONT face
the triangle left there should be in blue.

Comment 2 haihao 2007-09-27 01:08:53 UTC

fixed in commit 3ee6a77e97f7d2996f8fffdbb4787a9589189b39

Comment 3 Shuang He 2007-09-27 02:07:44 UTC

verified on both 32bit and 64bit

Comment 4 Adam Jackson 2009-08-24 12:28:04 UTC

Mass version move, cvs -> git

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