Update Files

Kha/Backends/HTML5/kha/js/WebAudioSound.hx

@@ -0,0 +1,114 @@
+package kha.js;
+
+import haxe.io.Bytes;
+import js.Browser;
+import js.html.XMLHttpRequest;
+import kha.audio2.Audio;
+
+/*
+	class WebAudioChannel extends kha.SoundChannel {
+	private var buffer: Dynamic;
+	private var startTime: Float;
+	private var offset: Float;
+	private var source: Dynamic;
+
+	public function new(buffer: Dynamic) {
+		super();
+		this.offset = 0;
+		this.buffer = buffer;
+		this.startTime = Audio._context.currentTime; 
+		this.source = Audio._context.createBufferSource();
+		this.source.buffer = this.buffer;
+		this.source.connect(Audio._context.destination);
+		this.source.start(0);
+	}
+
+	override public function play(): Void {
+		if (source != null) return;
+		super.play();
+		startTime = Audio._context.currentTime - offset;
+		source.start(0, offset);
+	}
+
+	override public function pause(): Void {
+		source.stop();
+		offset = Audio._context.currentTime - startTime;
+		startTime = -1;
+		source = null;
+	}
+
+	override public function stop(): Void {
+		source.stop();
+		source = null;
+		offset = 0;
+		startTime = -1;
+		super.stop();
+	}
+
+	override public function getCurrentPos(): Int {
+		if (startTime < 0) return Math.ceil(offset * 1000);
+		else return Math.ceil((Audio._context.currentTime - startTime) * 1000); //Miliseconds
+	}
+
+	override public function getLength(): Int {
+		return Math.floor(buffer.duration * 1000); //Miliseconds
+	}
+	}
+ */
+class WebAudioSound extends kha.Sound {
+	public function new(filename: String, done: kha.Sound->Void, failed: AssetError->Void) {
+		super();
+		var request = untyped new XMLHttpRequest();
+		request.open("GET", filename, true);
+		request.responseType = "arraybuffer";
+
+		request.onerror = function() {
+			failed({url: filename});
+		};
+
+		request.onload = function() {
+			compressedData = Bytes.ofData(request.response);
+			uncompressedData = null;
+			done(this);
+		};
+		request.send(null);
+	}
+
+	function superUncompress(done: Void->Void): Void {
+		super.uncompress(done);
+	}
+
+	override public function uncompress(done: Void->Void): Void {
+		Audio._context.decodeAudioData(compressedData.getData(), function(buffer: js.html.audio.AudioBuffer) {
+			final ch0 = buffer.getChannelData(0);
+			final ch1 = buffer.numberOfChannels == 1 ? ch0 : buffer.getChannelData(1);
+			final len = ch0.length;
+			uncompressedData = new kha.arrays.Float32Array(len * 2);
+			length = buffer.duration;
+			channels = buffer.numberOfChannels;
+			sampleRate = Math.round(buffer.sampleRate);
+			var idx = 0;
+			var i = 0;
+			final lidx = len * 2;
+			function uncompressInner() {
+				var chk_len = idx + 11025;
+				var next_chk = chk_len > lidx ? lidx : chk_len;
+				while (idx < next_chk) {
+					uncompressedData[idx] = ch0[i];
+					uncompressedData[idx + 1] = ch1[i];
+					idx += 2;
+					++i;
+				}
+				if (idx < lidx)
+					js.Browser.window.setTimeout(uncompressInner, 0);
+				else {
+					compressedData = null;
+					done();
+				}
+			};
+			uncompressInner();
+		}, function() {
+			superUncompress(done);
+		});
+	}
+}