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Using alBufferDataStatic()

Subject: Using alBufferDataStatic()
From: Chris Adamson <email@hidden>
Date: Wed, 17 Jun 2009 13:23:04 -0400
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I'm trying to use alBufferDataStatic, mentioned in the WWDC 2008 Core Audio video on iTunes. And having trouble compiling it in.

I searched the lists, and found that "site:apple.com alBufferDataStatic" turns out to be a Googlewhack that points over to TN2199's advice to use the alBufferDataStatic function instead of alBufferStatic to eliminate a memcpy(). OK, great. I'm pretty sure that this isn't a dupe question.

Here's the thing. I've imported the header:

#import <OpenAL/oalStaticBufferExtension.h>

But on the following line:

//alBufferData (buffer[i], AL_FORMAT_STEREO16, data[i], alDataSize, alDataRate);

alBufferDataStatic (buffer[i], AL_FORMAT_STEREO16, data[i], alDataSize, alDataRate);

I still get a compiler error:

/Users/cadamson/dev/iphone throwaways/OpenALThrowaway5/Classes/OpenALThrowaway5ViewController.m:99: warning: implicit declaration of function 'alBufferDataStatic'

Looking at the header file, I don't quite know how to make sense of the declaration:

typedef ALvoid AL_APIENTRY (*alBufferDataStaticProcPtr) (const ALint bid, ALenum format, ALvoid* data, ALsizei size, ALsizei freq);

Is there really a function here that I can use? What do I need to do to get my code to compile with it?

--Chris

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