[sldev] Wind Sound CPU usage.

[Jason Giglio]

Robin Cornelius wrote:
> On Mon, Mar 3, 2008 at 7:11 AM, Jason Giglio <gigstaggart at gmail.com> wrote:
>> Callum Lerwick wrote:
>>  > I've only profiled with my OpenAL patch which doesn't yet have noise
>>  > generation. (still haven't got around to looking at what Robin has done,
>>  > have kinda ended up trying to tie up loose ends with OpenJPEG...)


https://jira.secondlife.com/browse/VWR-5308

I've written a optimization/cleanup patch for the wind noise generator. 
  Got it down from 5.5% to 2.25%.

Callum, I was able to move most of the filter code out of the inner loop 
by getting rid of the gain/frequency damping.  I can't tell a difference 
with the damping gone, I don't think it was accomplishing much because 
it was damping very quickly to the target values.

Robin, you should be able to integrate the changes from this patch into 
your OpenAL noise patch pretty easily, since the optimizations were in 
places that were common to both.

-Jason