Composite extension and 30bit TrueColor visuals...

[Keith Packard]

Around 3 o'clock on Nov 13, Roland Mainz wrote:

> How will the Composite extension deal with 30bit TrueColor visuals
> (=having 10bit per R-, G-, B-gun) ? Doesn't that mean that there are
> only two bits left for the alpha channel ?

You could use two bits for alpha in this visual. Alternatively, you could 
just let those windows be opaque and create 8-8-8-8 windows for 
translucent applications.

It's also the case that Render supports external alpha channels; it's quite
possible to create a convention for Compositing Mangers to identify the
pixmap associated with that external alpha channel for a particular window.

-keith


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