Simon McVittie e3b2b90c72 cogl: Don't allow creating sized textures with 0 pixels
A texture with no pixels isn't a useful thing to have, and breaks
assumptions elsewhere. For example, CoglFramebuffer assumes that after
a texture has been allocated, it will have width and height both greater
than 0.

In particular, this works around a crash when gnome-shell tries to blur a
background that hasn't yet had any space allocated for it - which it seems
is really an actor layout bug, but more robustness seems good to have.

Workaround for <https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2538>.

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1172

Signed-off-by: Simon McVittie <smcv@debian.org>

(cherry picked from commit 37eda498f2de2cf787a5e65d6f0248e4a8e33490)
2020-04-03 13:48:46 +02:00
..
2019-10-16 11:38:13 +00:00