Re: Convert to float and more
Re: Convert to float and more
- Subject: Re: Convert to float and more
- From: Philippe Wicker <email@hidden>
- Date: Thu, 5 Jun 2003 09:46:34 +0200
On Thursday, June 5, 2003, at 08:05 AM, Matt Gonzalez wrote:
Check out the most recent PhantomAudioDriver; it has optimized Altivec
routines for doing this. Very thoughtful of Apple - I was able to
just drop them into my driver.
Hi Matt,
Do you mean the Dec 2002 version when you talk of the "most recent
PhantomAudioDriver"? I've looked at the sources and searched for
Altivec features (eg declaration of a vector) and couldn't find any
Altivec code. There is indeed highly optimized routines for conversion
between different integer flavors and Float32 in the file
PCMBlitterLibPPC.c , but it looks that these routines use scalar types
(float, double, ...). Am I missing something?
Regards,
Philippe Wicker
email@hidden
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