X on O2, this time for real

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Hello,

I just commited the missing bits to make my CRIME driver work with  
native Xorg and in the process got rid of most (all?) the remaining  
glitches. This needs xf86-video-crime and libxaa.so.1 rebuilt.

The driver supports:
- - all the usual screen-to-screen copy, rectfill etc. stuff
- - image uploads with pixel format conversion so we can pretend to run  
in ARGB instead of CRIME's native format
- - Xrender acceleration ( not all ops are implemented, just what's used  
to draw anti-aliased text and transparent icons. The others aren't  
hard to add, CRIME supports all OpenGL alpha-blending operations )
- - solid and dashed lines ( the hardware supports anti-aliased lines,  
no idea how X would use that )
- - CPU-to-screen colour expansion
- - hardware cursor
- - 24bit only. The hardware supports a lot of other pixel formats though.

Stuff that doesn't work (yet):
- - video overlays. They're handled by the graphics backend, not CRIME,  
I don't have enough information about that
- - image reads need to be implemented. Screenshots will look completely  
messed up otherwise.
- - uncommon Xrender ops
- - any kind of OpenGL acceleration

All in all Xorg should do a LOT better than Xsgi with gtk2, KDE and  
anything that uses Xrender.

have fun
Michael

PS: time to switch sgimips to Xorg, now that we have newport and crime  
support which both beat XFree86.

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