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 Post subject: BlitPixie (blitter code)
PostPosted: Mon Mar 28, 2005 7:29 pm 
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The BlitPixie routines contain a lot of optimized code, including some AltiVec...
Maybe some of it can be put to good use in the altivectorize project, perhaps ?

http://sourceforge.net/projects/blitpixie/


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PostPosted: Tue Mar 29, 2005 1:36 am 
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Quote:
The BlitPixie routines contain a lot of optimized code, including some AltiVec...
Maybe some of it can be put to good use in the altivectorize project, perhaps ?

http://sourceforge.net/projects/blitpixie/
Wish they packaged the download in something other than StuffIt, it hurts to have to CVS everything :)

This might be interesting for integrating ideas into such things as the VESA or VGA framebuffers or X drivers. AltiVec code here would make a lot of difference (4+ pixels at once etc.) to performance on "unsupported" cards.

I wonder also how much acceleration the Linux framebuffer device wants to support but more importantly does the Linux kernel REALLY support AltiVec/VRSAVE and so on when it switches tasks? You can't even use the FPU under most circumstances and framebuffer drivers are generally kernel compiled, not modules or userspace..

Neko


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