Set a destructor function on pixman images and call fbFinishAccess()
from there, rather than directly from free_pixman_pict(). This ensures
that fbFinishAccess() gets called even if pixman still has a reference
to the image after free_pixman_pict(), as is the case for alphamaps.
[ajax: Squash an unused variable warning in the non-wfb build]
Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
Signed-off-by: Arcady Goldmints-Orlov <arcadyg@nvidia.com>
Reviewed-by: Søren Sandmann <ssp@redhat.com>