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List:       freedesktop-xorg
Subject:    Re: EXA
From:       Soeren Sandmann <sandmann () daimi ! au ! dk>
Date:       2007-08-07 16:59:06
Message-ID: ye84pjbcmcl.fsf () camel29 ! daimi ! au ! dk
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Michel Dänzer <michel@tungstengraphics.com> writes:

> > And why is it not used pixman_blt_mmx instead?
> 
> I was wondering the same thing, Søren?

I don't think there is any deep reason. When I did it originally, I
was generally profiler-driven, and this particular path probably just
never showed up.

In principle there is no reason memcpy() has to be slower than
pixman_blt_mmx(), but of course in practice it may well be. It does
look like at least one of the MEMCPY_WRAPPED() calls in fbBlt() could
be done with pixman_blt_mmx().



Soren


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