[Wayland-bugs] [Bug 754839] wayland: Make subsurface desynchronized after first parent surface frame

[gtk+ (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=754839

--- Comment #1 from Jonas Ådahl <jadahl at gmail.com> ---
Created attachment 311084
  --> https://bugzilla.gnome.org/attachment.cgi?id=311084&action=edit
wayland: Make subsurface desynchronized after first parent surface frame

Initially the subsurface will be in synchronized mode and we will leave
it like this until the first time the parent surface has been committed.
The reason for this is because the subsurface position will be applied
as part of the parent surface state, and we need to synchronize the
initial position with the initial frame, so that we don't accidentally
draw the subsurface at the default position (0, 0) which would happen in
desynchronized mode if the subsurface content is committed before the
next parent surface commit.

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