ati-vga: Fix check for blt outside vram
Fix the check preventing calling pixman functions that would access
memory outside allocated vram. The r128 X driver sometimes seem to try
blits that span outside vram, this check prevents crashing QEMU in
that case. (The r128 X driver may have problems even on real hardware
so I'm not sure if it's a client bug or emulation problem but at least
QEMU should survive.)
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Tested-by: Andrew Randrianasulu <randrianasulu@gmail.com>
Message-Id: <
20190409110732.
5C5FF7465DB@zero.eik.bme.hu>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>