[Openal] Max number of sources (and legit id values) foreachOpenALimplementation

[Jason Daly]

Daniel PEACOCK wrote:
>
> Hi All,
>
> The original motivation for having the ALC_MONO_SOURCES and 
> ALC_STEREO_SOURCES hints was due to the fact that an OpenAL Source 
> that can be used to play buffers that could have anywhere between 1 
> and 8 (maybe even more) channels of data. For software mixers this is 
> no big deal - but for hardware devices that require one voice per 
> channel (e.g Stereo requires 2 voices) it is a big problem. If you are 
> running on a hardware device with 128 voices then generating 128 
> sources and using them to play 128 mono buffers is OK - but you can't 
> use them to play 128 Stereo buffers.
>

Yeah, I understand that.  The only thing I wasn't clear on was what you 
get back when you call alcGetIntegerv with ALC_MONO_SOURCES or 
ALC_STEREO_SOURCES.  The spec calls these "hints", so it's not really 
clear on what you will get back (unless I'm missing something again). 

If I were writing an implementation, I could argue that you should only 
get your hint values back, but it sounds like the intent is that it 
should return the number of sources actually available.

--"J"
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