https://bugs.freedesktop.org/show_bug.cgi?id=34778
Summary: [r600g, wine] FEAR / depth-stencil rendering triggers SW fallback Product: DRI Version: DRI CVS Platform: x86-64 (AMD64) URL: http://www.gamershell.com/download_10167.shtml OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/Radeon AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: liquid.acid@gmx.net
System: ATI Technologies Inc Radeon HD 4770 [RV740]
drm-radeon-testing kernel (git tip) libdrm, mesa and xf86-video-intel git master xorg-server-1.9.4
mesa git master = 99b9019716d0a5cfc7438677d2e11090d676c054
Hi there,
this is sort of copy&paste from bug #34674. The problem (fallback to software rendering) described there also happens on r600g, and probably (judging from the state tracker code) on all gallium drivers.
Anyway, from profiling I found out that pipe_put_tile_z and pipe_get_tile_z consume like 90% of the CPU time. These two get called by fallback_copy_texsubimage, which is called from st_copy_texsubimage.
Greets, Tobias