Entire project

src/com/gnarly/engine/audio/WaveData.java

@@ -0,0 +1,88 @@
+package com.gnarly.engine.audio;
+
+import java.io.BufferedInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.ByteBuffer;
+
+import javax.sound.sampled.AudioFormat;
+import javax.sound.sampled.AudioInputStream;
+import javax.sound.sampled.AudioSystem;
+import javax.sound.sampled.UnsupportedAudioFileException;
+
+import org.lwjgl.BufferUtils;
+import org.lwjgl.openal.AL10;
+ 
+public class WaveData {
+ 
+	final int format;
+	final int samplerate;
+	final int totalBytes;
+	final int bytesPerFrame;
+	final ByteBuffer data;
+ 
+	private final AudioInputStream audioStream;
+	private final byte[] dataArray;
+ 
+	private WaveData(AudioInputStream stream) {
+		this.audioStream = stream;
+		AudioFormat audioFormat = stream.getFormat();
+		format = getOpenAlFormat(audioFormat.getChannels(), audioFormat.getSampleSizeInBits());
+		this.samplerate = (int) audioFormat.getSampleRate();
+		this.bytesPerFrame = audioFormat.getFrameSize();
+		this.totalBytes = (int) (stream.getFrameLength() * bytesPerFrame);
+		this.data = BufferUtils.createByteBuffer(totalBytes);
+		this.dataArray = new byte[totalBytes];
+		loadData();
+	}
+ 
+	protected void dispose() {
+		try {
+			audioStream.close();
+			data.clear();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+	}
+	 
+	private ByteBuffer loadData() {
+		try {
+			int bytesRead = audioStream.read(dataArray, 0, totalBytes);
+			data.clear();
+			data.put(dataArray, 0, bytesRead);
+			data.flip();
+		} catch (IOException e) {
+			e.printStackTrace();
+			System.err.println("Couldn't read bytes from audio stream!");
+		}
+		return data;
+	}
+ 
+	public static WaveData create(String file) {
+		WaveData wavStream = null;
+		try {
+			InputStream stream = new FileInputStream(new File(file));
+			InputStream bufferedInput = new BufferedInputStream(stream);
+			AudioInputStream audioStream = null;
+			audioStream = AudioSystem.getAudioInputStream(bufferedInput);
+			wavStream = new WaveData(audioStream);
+		} catch (UnsupportedAudioFileException e) {
+			e.printStackTrace();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+		return wavStream;
+	}
+ 
+ 
+	private static int getOpenAlFormat(int channels, int bitsPerSample) {
+		if (channels == 1) {
+			return bitsPerSample == 8 ? AL10.AL_FORMAT_MONO8 : AL10.AL_FORMAT_MONO16;
+		} else {
+			return bitsPerSample == 8 ? AL10.AL_FORMAT_STEREO8 : AL10.AL_FORMAT_STEREO16;
+		}
+	}
+ 
+}