http://bugs.freedesktop.org/show_bug.cgi?id=27339
Summary: Problem with stale cliprects from the classic r300 in
r300g
Product: Mesa
Version: git
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Drivers/DRI/r300
AssignedTo: dri-devel@lists.sourceforge.net
ReportedBy: mathias.froehl...@web.de
Hi,
When using the classic r300 driver together with r300g in the same session, the
cliprect registers used to clip the viewport in classic r300 seem to bleed into
the r300g environment.
The problem I observe is that when I start an application with the classic r300
driver and stop that application. Then switch to the r300g driver by setting
the LIBGL_DRIVERS_PATH environment variable, the r300g context is always
clipped to the viewport of the previous classic r300 viewport.
This happens on my mesa test account which uses non composited X11 on rawhide.
The attached patch fixes this by initializing these clip rects on context
startup.
I am not sure which registers should be initialized by which different
component, which means I am not sure if this is the right place to fix this.
But I provide that here as a hopefully good hint what goes wrong.
Please fix
Mathias
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