[Wayland-bugs] [Bug 727452] Wayland windows with non-trivial alpha get new content drawn over old

[gtk+ (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=727452
  gtk+ | Backend: Wayland | 3.12.x

--- Comment #15 from Benjamin Otte (Company) <otte at gnome.org> 2014-04-04 12:22:07 UTC ---
(In reply to comment #14)
> The comments, and the implementation in GdkWindow, suggest that it's meant to
> be OK for it to have undefined contents - so the patch from Comment #8 would be
> a more correct approach, if it worked (unfortunately it doesn't, and I still
> can't see why not).
>
I think this is the approach we should take at least in the stable branch.

But why doesn't this work? Your comment above says you don't use it because you
feared it'd be slow.

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