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J.F. · Joined: 22 Feb 2004 Posts: 2906

As part of something Wally and I are working on, I needed to port OpenAL to the PSP. Here's the initial result. This is a port of OpenAL-Soft 1.6.372, and freealut 1.1.0. I also converted the examples to the PSP for testing.

What do you get? You get an output device that outputs 16 bit stereo at 44100 Hz (the mixer will convert other rates and formats to that), and an input device that captures 16 bit mono at 44100, 22050, or 11025 Hz (you MUST specify that EXACTLY or it won't open).

There are two OpenAL examples - one that gives all the info about the driver, and another that captures from the mic and plays out the headphones (only SOCOM mic support right now). There are two ALUT examples - one that plays the built-in "Hello World" waveform, and another that plays four different waves from the memstick.

The capture example is particularly handy as it's almost impossible to find OpenAL capture example code on the net. My example was based off an abandoned non-functional example someone did but couldn't get working.

freealut-psp-090314.zip
openal-soft-psp-090314.zip

Chrighton · Joined: 15 Jun 2005 Posts: 58

Nice work as always, JF. I was considering looking into porting OpenAL in the coming weeks/months as it seemed no one was ever going to do it :)

Wally · Joined: 26 Sep 2005 Posts: 672

it took him five minutes :P

Chrighton · Joined: 15 Jun 2005 Posts: 58

Then he saved us five minutes :D

J.F. · Joined: 22 Feb 2004 Posts: 2906

Wally's just exaggerating a little as a joke... it was actually probably about 10 hours of work all added up, with much of that being debugging. If you find a problem, be sure to let me know... or post a fix in the thread if you correct it yourself.

Drakon · Joined: 08 Apr 2008 Posts: 13 Location: Poznan - Poland

J.F. - love you :) Seriously thanks for you hard work :> I will also test library :)

NoEffex · Joined: 27 Nov 2008 Posts: 108

Have I ever told you I want to bear your children? Because I do.
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Programming with:
Geany + Latest PSPSDK from svn

justin · Joined: 17 Oct 2007 Posts: 16

This makes me happy! Thnx.

fungos · Joined: 31 Oct 2007 Posts: 41 Location: cwb br

Is that on svn or psp libraries script already?

Pirata Nervo · Joined: 09 Oct 2007 Posts: 409

Thanks for sharing :)
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Upgrade your PSP

J.F. · Joined: 22 Feb 2004 Posts: 2906

@Pirata: You're welcome.

@fungos: Most lib conversions don't get added to the svn unless they're pretty important. OpenAL isn't one of those things you see too often, so it would surprise me if it ever made it into the repo.

fungos · Joined: 31 Oct 2007 Posts: 41 Location: cwb br

@J.F.: Yeah. I think OpenAL is amazingly important for any game ;) Maybe we can get it into svn.

Good job btw, you're the man.

justin · Joined: 17 Oct 2007 Posts: 16

Finally got around to implementing this in a game. Works out of the box, thanks :) Bye bye SDL_mixer!