https://bugs.freedesktop.org/show_bug.cgi?id=37724
Summary: occlusion queries are messed up in ut2004 (regression, bisected) Product: Mesa Version: unspecified Platform: Other OS/Version: All Status: NEW Severity: normal Priority: medium Component: Drivers/Gallium/r300 AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: aaalmosss@gmail.com
The majority of the 3d objects disappear periodically since this commit: f76787b3eae3f0b8af839fabfb24b57715a017f6 is the first bad commit commit f76787b3eae3f0b8af839fabfb24b57715a017f6 Author: Marek Olšák maraeo@gmail.com Date: Sun May 29 04:36:36 2011 +0200
r300g: fix occlusion queries when depth test is disabled or zbuffer is missing
From now on, depth test is always enabled in hardware.
If depth test is disabled in Gallium, the hardware Z function is set to ALWAYS.
If there is no zbuffer set, the colorbuffer0 memory is set as a zbuffer to silence the CS checker.
This fixes piglit: - occlusion-query-discard - NV_conditional_render/bitmap - NV_conditional_render/drawpixels - NV_conditional_render/vertex_array
:040000 040000 baeff41ffed8952cbb1666d04941c6d5d01ca4fc cdb64f4b684804b818df4b65c04109eaad568e11 M src