pan/layout: Fix WSI.Import test
We were leaving the depth to zero, but the layout code expects a depth
of at least one.
Add an assert() in pan_image_layout_init() to catch this in the future.
Fixes: 916f75a2a6be ("pan/layout: Test WSI import behavior on all supported format/mods")
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Lars-Ivar Hesselberg Simonsen <lars-ivar.simonsen@arm.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35555>
2 files changed
