Fixes misrendering with cairogears. I had noticed the failure while
trying to figure out what was going on with traps. Cairogears was
apparently putting its results on the screen through putimage, which
is a texture upload, so the last GL drawing was done to the size of
the cairogears window, not the size of the xephyr screen.
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
This is the same thing that Qt ended up doing to get DRI2's event
mangling to happen despite using an XCB event loop.
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
v2: Avoid making the Ximage for the screen that we'll never use, and
drive the screen pixmap creation for glamor ourselves.
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com> (v1)
Reviewed-by: Adam Jackson <ajax@redhat.com>
