[sldev] [patch] Vectorized DWT in OpenJPEG

[Callum Lerwick]

On Sat, 2007-04-07 at 21:29 -0700, John Hurliman wrote:
> Forgive my ignorance, but will this patch have any effect (negative or 
> positive) on compilers that aren't GCC4? For example if I apply this and 
> compile with Visual Studio 2005 should I expect the code to run at the 
> same speed as previously, or will it have an impact? And what about 
> Intel's compiler?

There's a reason I've been trying to go for autovectorization rather
than explicit vectorization. :)

Supposedly icc has some pretty wicked autovectorization capability. No
idea about Microsoft.

I'll have to play with this patch. Does it really need to be fp?
OpenJPEG seems to lean more towards integer. With modern processors, I
wonder which is actually faster... :)
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