Georges Basile Stavracas Neto 0d51678bbe clutter/offscreen-effect: Clear framebuffer on pre_paint
Move the framebuffer cleanup to ClutterOffscreenEffect.pre_paint().
This will allow us to properly chain up ClutterOffscreenEffect.paint()
and not reimplement exactly what ClutterEffect does by default.

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1340
2020-07-06 10:39:59 -03:00
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