[Xquartz-dev] Compiz on OS-X?

[George Peter Staplin]

Quoted Jeremy Huddleston <jeremyhu at apple.com>:

> Uhm... well it's not the GLX support that's the problem (and you have
> an interesting view of "long way" on GLX... we really just started
> working on improving GLX this past week, and we have a long way to go).
>
> The real issue is COMPOSITE support.  That's quite far off.  That
> certainly won't happen before the year's end.  Hopefully something
> will come together in 2009.
>
> --Jeremy
>
> On Oct 7, 2008, at 19:30, Dave Ray wrote:
>
>> I know this is a long shot, but how far off is X11-quartz from being
>> able to run Compiz Fusion as an X11 WM? I know X11 has come a long way
>> in GLX support.
>> Dave

I was thinking yesterday about how we could probably support  
_NET_WM_WINDOW_OPACITY in a fairly easy manner in quartz-wm.  While it  
wouldn't give us the full effects of something like Compiz of Compiz  
Fusion, it would provide alpha transparency for some top level  
windows.  One problem though is that not many applications I know of  
actually set that property.

In the X11 WM I'm using right now, I have the active/focus window be  
fully opaque, and the other application windows on the desktop are 75%  
opaque, allowing me to see through them.  I also have a menu item to  
toggle "Opaque on" or "Opaque off" for the windows I want to always be  
opaque.

re: COMPOSITE:

I'd imagine its wrapping of window-related functions for offscreen  
rendering via things like XCompositeRedirectWindow make the DRI and  
Rootless code potentially have problems.  Is that one of the issues  
with Composite support?  This makes me wonder if there is any  
composite introspection provided at the X server level for finding out  
if a window is redirected.


George
-- 
http://people.freedesktop.org/~gstaplin/