Dear mcompositor developers,
Yongsheng and I have a question on mcompositor, why does the compositing
functionality depend on the type of the topmost window?
The function MCompositeManagerPrivate::possiblyUnredirectTopmostWindow() will
judge whether the topmost root window isAppWindow(true), if it is true, it will
not do the compositing. Otherwise it will do the compositing which means it will
get the texture of the topmost window, combine the decorator texture and draw
them into full screen on mcompositor's GL window.
Comparing the below two alternative coding logics:
1. If it is AppWindow, draw the AppWindow's texture on compositor's GL
window. This means mcompositor's GL window will be always mapped.
2. If it is not AppWindow, combine it with decorator directly and do not
touch
texture staff. This means mcompositor is only used for window animation.
Is there any special consideration on this design logic?
Thanks
-Haitao
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