XAA vs. EXA in old hardware support

[Michael Lorenz]

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Hello,

just a stupid question - a while ago I wrote an XFree86 driver for the 
Weitek P9100 graphics chip found in Tadpole SPARCbook 3GX and similar 
laptops. ( the P9100 driver in XFree86 3.x wasn't really helpful - this 
P9100 has an SBus interface and does a few things rather differently. 
It also lacks the VGA part. )
So the question is - the driver of course uses XAA primitives. Should I 
bother with EXA when porting it over to xorg? There is no hardware 
support for alpha-blending or anything like that - just plain old 
rectangles, area copies, lines, clipping, colour expansion.

The same goes for suncg6 - I added support for most of the hardware 
acceleration these old critters offer ( didn't bother with pattern 
fills but that's trivial to add ).

have fun
Michael
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