Robert Bragg a945890de6 Workaround drisw bug where clipped redraws don't work ... This detects when we are running on any of Mesa's software rasterizer backends and disables use of glBlitFramebuffer and glXCopySubBuffer. Both of these currently result in full-screen copies so there's little point in using these to optimize how much of the screen we present. To help ensure we re-evaluate this workaround periodically we have added a comment marker of "ONGOING BUG" above the workaround and added a note to our RELEASING document that says we should grep for this marker and write a NEWS section about ongoing bug workarounds. https://bugzilla.gnome.org/show_bug.cgi?id=674208 Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit 11f2f6ebb42398978ec8dd92b3c332ae8140a728)		2012-08-06 14:27:42 +01:00
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gl	Workaround drisw bug where clipped redraws don't work	2012-08-06 14:27:42 +01:00
gles	Workaround drisw bug where clipped redraws don't work	2012-08-06 14:27:42 +01:00
Makefile.am