Add FLOAT32 formats

[TimDaub]

Fixes #9851

[welcome]

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[kripken]

Thanks @TimDaub !

Yes, this looks right to me, I'm puzzled why it wasn't there before... perhaps @juj has an idea?

I suspect we didn't want to add extra changes to al.h which is an upstream header? But as we do support that - and looks like we have tests for it, too - we should have it in the header.

I think we can also remove the #defines for those two constants from the two tests that define them, tests/openal_capture_sanity.c and tests/openal_capture.c.

[TimDaub]

I think we can also remove the #defines for those two constants from the two tests that define them, tests/openal_capture_sanity.c and tests/openal_capture.c.

OK, I removed them.

[juj]

The FLOAT32 #defines are not part of OpenAL (https://github.com/kcat/openal-soft/blob/master/include/AL/al.h), but they are an extension to OpenAL, see

https://github.com/kcat/openal-soft/blob/f2eab3e919aa06b72ad467118db3269fe2571bbb/include/AL/alext.h#L70

If we want to do this proper, we should also add a file alext.h in https://github.com/emscripten-core/emscripten/tree/incoming/system/include/AL where this should live.

Perhaps we should take openal-soft headers as-is from https://github.com/kcat/openal-soft/tree/master/include/AL ? (although that will run into similar problems as WebGL currently does with mismatching/unrecognized extensions, but with OpenAL it may be easier to add support to each)

[kripken]

Thanks @juj, yes, that sounds like the way to go!

[sbc100]

The deletion of the incoming branch triggered the automatic closing of this branch. My apologies. This was an unexpected side effect.

Re-opening and re-targeting to master.

[stale]

This issue has been automatically marked as stale because there has been no activity in the past year. It will be closed automatically if no further activity occurs in the next 30 days. Feel free to re-open at any time if this issue is still relevant.

[Laguna1989]

Any progress on this one?