com/danitheskunk/skunkworks/TestSound.java

@@ -1,7 +1,6 @@
 package com.danitheskunk.skunkworks;
 
 import com.danitheskunk.skunkworks.audio.AudioEngine;
-import com.danitheskunk.skunkworks.audio.nodes.Sine;
 import org.lwjgl.openal.AL;
 import org.lwjgl.openal.ALC;
 
@@ -18,7 +17,6 @@ import static org.lwjgl.openal.ALC10.*;
 public class TestSound {
 	public static void main(String args[]) throws InterruptedException {
 		var engine = new AudioEngine(44100, 256, 8);
-		engine.setNode(new Sine(engine, 440));
 		for(int i = 0; i < 120; ++i) {
 			engine.refill();
 			Thread.sleep(20);

com/danitheskunk/skunkworks/audio/AudioBuffer.java

@@ -1,28 +0,0 @@
-package com.danitheskunk.skunkworks.audio;
-
-public class AudioBuffer {
-	private double[] left;
-	private double[] right;
-
-	public AudioBuffer(int size) {
-		left = new double[size];
-		right = new double[size];
-	}
-
-	public int getSize() {
-		return left.length;
-	}
-
-	public void setSample(int pos, double left, double right) {
-		this.left[pos] = left;
-		this.right[pos] = right;
-	}
-
-	public double getLeft(int pos) {
-		return left[pos];
-	}
-
-	public double getRight(int pos) {
-		return right[pos];
-	}
-}

com/danitheskunk/skunkworks/audio/AudioEngine.java

@@ -1,11 +1,11 @@
 package com.danitheskunk.skunkworks.audio;
 
-import com.danitheskunk.skunkworks.audio.nodes.Node;
 import org.lwjgl.openal.AL;
 import org.lwjgl.openal.ALC;
 
 import java.nio.ByteBuffer;
 import java.nio.IntBuffer;
+import java.util.Random;
 
 import static org.lwjgl.openal.AL10.*;
 import static org.lwjgl.openal.ALC10.*;
@@ -17,7 +17,8 @@ public class AudioEngine {
 	private long device;
 	private long context;
 	private int source;
-	private Node node;
+	private int tick = 0;
+
 	public AudioEngine(int sampleRate, int bufferSize, int bufferCount) {
 		this.sampleRate = sampleRate;
 		this.bufferSize = bufferSize;
@@ -43,25 +44,26 @@ public class AudioEngine {
 		alSourcePlay(source);
 	}
 
-	public int getBufferSize() {
-		return bufferSize;
-	}
-
 	public void close() {
 		alcDestroyContext(context);
 		alcCloseDevice(device);
 	}
 
 	private void fillBuffer(int buffer) {
-		var shortBuffer = new short[bufferSize * 2];
+		var buf = new double[bufferSize * 2];
-
-		if(node != null) {
-			var buf = node.getBuffer(0);
 		for(int i = 0; i < bufferSize; ++i) {
-				shortBuffer[i * 2 + 1] = (short) (buf.getLeft(i) * 32760);
+			double time = (double) tick / (double) sampleRate;
-				shortBuffer[i * 2 + 1] = (short) (buf.getRight(i) * 32760);
+			var s = Math.sin(2 * Math.PI * 440 * time);
+			buf[i * 2] = s;
+			buf[i * 2 + 1] = s;
+			++tick;
 		}
+
+		var shortBuffer = new short[bufferSize * 2];
+		for(int i = 0; i < bufferSize * 2; ++i) {
+			shortBuffer[i] = (short) (buf[i] * 32760);
 		}
+
 		alBufferData(buffer, AL_FORMAT_STEREO16, shortBuffer, sampleRate);
 	}
 
@@ -89,12 +91,4 @@ public class AudioEngine {
 	public int getSampleRate() {
 		return sampleRate;
 	}
-
-	public Node getNode() {
-		return node;
-	}
-
-	public void setNode(Node node) {
-		this.node = node;
-	}
 }

com/danitheskunk/skunkworks/audio/nodes/Node.java

@@ -1,59 +0,0 @@
-package com.danitheskunk.skunkworks.audio.nodes;
-
-import com.danitheskunk.skunkworks.audio.AudioBuffer;
-import com.danitheskunk.skunkworks.audio.AudioEngine;
-
-public abstract class Node {
-	private int inCount;
-	private int outCount;
-	private boolean[] isOutConnected;
-	private Node[] inConnections;
-	private int[] inConnectionSlots;
-	private AudioEngine engine;
-
-	public Node(AudioEngine engine, int inCount, int outCount) {
-		this.inCount = inCount;
-		this.outCount = outCount;
-		this.isOutConnected = new boolean[outCount];
-		this.inConnections = new Node[inCount];
-		this.inConnectionSlots = new int[inCount];
-		this.engine = engine;
-		if(outCount > 1) {
-			throw new RuntimeException("more than one out connection not yet" +
-				" " +
-				"allowed, needs handling in getBuffer to only process once");
-		}
-	}
-
-	public static void connect(Node src, int srcSlot, Node dst, int dstSlot) {
-		if(srcSlot < 0 || srcSlot >= src.outCount) {
-			throw new RuntimeException("invalid srcSlot");
-		}
-		if(dstSlot < 0 || dstSlot >= dst.inCount) {
-			throw new RuntimeException("invalid dstSlot");
-		}
-		if(src.isOutConnected[srcSlot]) {
-			throw new RuntimeException("src node slot already connected");
-		}
-		if(dst.inConnections[dstSlot] != null) {
-			throw new RuntimeException("dst node slot already connected");
-		}
-		src.isOutConnected[srcSlot] = true;
-		dst.inConnections[dstSlot] = src;
-		dst.inConnectionSlots[dstSlot] = srcSlot;
-	}
-
-	public AudioEngine getEngine() {
-		return engine;
-	}
-
-	public int getInCount() {
-		return inCount;
-	}
-
-	public int getOutCount() {
-		return outCount;
-	}
-
-	public abstract AudioBuffer getBuffer(int slot);
-}

com/danitheskunk/skunkworks/audio/nodes/Sine.java

@@ -1,28 +0,0 @@
-package com.danitheskunk.skunkworks.audio.nodes;
-
-import com.danitheskunk.skunkworks.audio.AudioBuffer;
-import com.danitheskunk.skunkworks.audio.AudioEngine;
-
-public class Sine extends Node {
-	private int tick;
-	private double freq;
-
-	public Sine(AudioEngine engine, double freq) {
-		super(engine, 0, 1);
-		tick = 0;
-		this.freq = freq;
-	}
-
-	@Override
-	public AudioBuffer getBuffer(int slot) {
-		var bufsize = getEngine().getBufferSize();
-		var buf = new AudioBuffer(bufsize);
-		for(int i = 0; i < bufsize; ++i) {
-			var time = (double) tick / (double) getEngine().getSampleRate();
-			var s = Math.sin(Math.PI * 2 * freq * time);
-			buf.setSample(i, s, s);
-			++tick;
-		}
-		return buf;
-	}
-}