[RFC Weston 00/10] Sub-surfaces v2
Kai-Uwe Behrmann
ku.b at gmx.de
Wed Mar 6 22:25:17 PST 2013
Hello Pekka,
Am 22.02.2013 16:07, schrieb Pekka Paalanen:
> - A totally new demo client presenting sub-surfaces, including
> Cairo-image rendered window with a pure EGL/GL widget in a
> sub-surface, running independently, but still without glitches
> on resize (sans bugs).
> http://people.collabora.com/~pq/subsurface-2.png
The above example shows non overlapping regions. For a more throughout
test, I would expect overlapping regions with and without alpha to test
Z-order behaviour.
> The biggest improvement over v1 is that we have some thought-out
> commit behaviours. It is possible to resize a window so that all
> surfaces stay in sync on screen, and it is also possible to have
> sub-surfaces running on their own (i.e. without commit the
> parent surface, too).
What is the default behaviour of repainting in regards to Z-order? Draw
all surfaces? I other words, is the possibility to have sub-surfaces
running on their own only optional?
kind regards
Kai-Uwe
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