Thomas Hellstrom authored Jun 01, 2017 and Emil Velikov committed Jun 14, 2017

A number of internal VMware apitrace traces image comparisons fail with
dri3 because the viewport transformation becomes incorrect after an X
drawable resize. The incorrect viewport transformation sometimes persist
until the second draw-call after a swapBuffer.

Comparing with the dri2 glx code there are a couple of places where dri2
invalidates the drawable in the absence of server-triggered invalidation,
where dri3 doesn't do that. When these invalidation points are added to
dri3, the image comparisons become correct.

v2:
Addressed review comment by Michel Dänzer.

Cc: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-and-tested-by: Michel Dänzer <michel.daenzer@amd.com>
(cherry picked from commit 1253d589)