FB-access-wrapper?

[Egbert Eich]

Thomas Winischhofer writes:
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 > 
 > As said, I am dealing with a driver for a device that is connected via
 > USB. All video memory, MMIO and i/o port access has to go over the wire.
 > 
 > Is there any - reasonable (I don't intend to rewrite half of the XAA
 > code) - way to wrap ALL server functions that directly access video RAM
 > (apart from using the dead-slow shadow framebuffer)?
 > 

Thomas,

please have look at the RAC layer. I've implemented something similar for
access switching between cards that share resources.
It may have to get updated for new features on RENDER or similar things
but it should be a reasonable start.

Cheers,
	Egbert.