Rects with positive w/h/linesize but no data are invalid.
Reviewed-by: Petri Hintukainen <phintuka@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
(cherry picked from commit 99551232)
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>