Xinerama infrastructure

Hi.  I am not an X developer so forgive me if I get some of my facts/ideas 
wrong.

Xinerama is currently not accelerated under XFree86.  My understanding is 
that xinerama and acceleration were simply not built into the XFree 4.x 
architecture in a way that would make implementing accelerated xinerama in 
XFree86 a reasonable task for any but the most highly motivated individuals 
(none yet have emerged apparently)

Now, I know that there are many many features and functions that are still 
being implemented in the rather young fd.o Xserver and that xinerama might 
not rank very high on that list of coding tasks, but in the end I assume 
that xinerama is something that people will want and that xserver will 
support.

So, my question is this:  is accelerated xinerama something that is even 
being considered at this early architecting stage of xserver development so 
that when the time comes to implement it, it will be reasonably easy and 
will actually happen?  Is the fd.o xserver architected in a way that 
xinerama will fall conveniently within some abstraction that will make it so 
that we essentially get the multi-head support for free or with little 
overhead in terms of performance/coding effort/maintenance?

Right now I am actually using Xig's x-server because I use dual head at work 
and the unaccellerated performance on dual head was totally unacceptable 
with XFree.  Please tell me that I will not still be in this same situation 
one year from now.

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