Implement audio support properly, please (was: sounds play with some delay)

[DarthVernus]

       //...
		Assets.loadSoundFromPath("impact_a.ogg", function(sound:Sound) {
			testSound = sound;
		});
	}
        //...
	function keyboardDownListener(keyCode:KeyCode)
	{
		if (testSoundAC != null)
			testSoundAC.play();
		else if (testSound != null)
			testSoundAC = Audio.play(testSound);
	}

[RobDangerous]

Tested on which platform and with what version of Krom? How large is "some delay"?

[DarthVernus]

~0.5s.
os: Windows 7
Krom from Kode Studio 18.11.
I know that Kha and Krom are outdated in this release. But Armory3d uses a more recent version and has the same probem. I also built latest Krom from github (for my armory3d project) and had the same problem with sound. HTML5 has less delay.

[RobDangerous]

But... I disabled sound in Krom.

[DarthVernus]

What do you mean?

[RobDangerous]

I literally disabled sound in Krom: https://github.com/Kode/Krom/blob/master/Sources/main.cpp#L96
That's because the current implementation is just a temporary hack. You can manually activate it on the command line but I wouldn't recommend it.

[DarthVernus]

Ah, that's exactly what I did.

[RobDangerous]

OK. Let's move and rename.

[DarthVernus]

Here is what i did:

bool enableSound = true;
               else if (strcmp(argv[i], "--nosound") == 0) {
			enableSound = false;
		}

[MoritzBrueckner]

Not sure if this belongs in a separate issue, but since my last one about loading sounds was closed in favour of this one:

(From Kode/Kha#1441)
Krom currently doesn't check whether loading a sound was successful, and in turn it crashes because it tries to dereference a null pointer. Instead, it should simply return null in that case (see armory3d/armorcore#56). I can't test Kode's version of Krom at the moment because I don't know how to handle this new node stuff, so instead I'm writing this here.