[cairo] Cairo Drawing Speed
siarhei.siamashka at gmail.com
Fri Nov 27 08:02:09 PST 2009
On Tuesday 24 November 2009, Koen Kooi wrote:
> On 24-11-09 14:56, Jonathan Morton wrote:
> > There are a lot of
> > performance enhancements done, especially for ARM processors.
> > I feel obliged to point out that an ARM920T won't be able to take
> > advantage of either the NEON or ARM-SIMD kernels in Pixman - it's a v5
> > chip, so it's like asking a classic Pentium to understand SSE.
> Worse, arm920t is armv4t, arm926 is v5.
I still have some armv6 SIMD patches (a few 16bpp fast paths) not yet merged
into pixman. They were used on Nokia N810
As for the older ARM chips, I'm not quite sure if they are going to
be still used in new devices running more or less normal linux software
stack (including pixman). Of course if somebody is up to also optimizing
pixman for armv4 chips, it would be only encouraged I guess.
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