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[Soeren Sandmann]

>>Drawing to root window is not viable either. Switching the root window
>>to be double-buffered on-the-fly would require major architectural
>>change to OpenGL, and I'm not entirely sure that all extant hardware
>>could support it.
>>    
>>
>
>I don't know of any hardware reason that would prevent it; it's already
>supported today, the only issue is that the fb configuration is fixed by
>the default visual. We haven't learned what level of effect making this
>configuration changable on-the-fly would have on GLX.
>  
>
This reminds me that there is another way to solve this: Make sure
glXPixmaps work. That way the compositing manager can just draw all
its stuff to a pixmap, then do XCopyArea() to the root with 
include_inferiors.


Soren