15 files changed, 812 insertions, 0 deletions

diff --git a/src/java/demos/data/Battle.wav b/src/java/demos/data/Battle.wav
new file mode 100755
index 0000000..c15521b
--- /dev/null
+++ b/src/java/demos/data/Battle.wav
diff --git a/src/java/demos/data/FancyPants.wav b/src/java/demos/data/FancyPants.wav
new file mode 100755
index 0000000..712a3c6
--- /dev/null
+++ b/src/java/demos/data/FancyPants.wav
diff --git a/src/java/demos/data/Footsteps.wav b/src/java/demos/data/Footsteps.wav
new file mode 100755
index 0000000..7bf7a0c
--- /dev/null
+++ b/src/java/demos/data/Footsteps.wav
diff --git a/src/java/demos/data/Gun1.wav b/src/java/demos/data/Gun1.wav
new file mode 100755
index 0000000..eecc4d1
--- /dev/null
+++ b/src/java/demos/data/Gun1.wav
diff --git a/src/java/demos/data/Gun2.wav b/src/java/demos/data/Gun2.wav
new file mode 100755
index 0000000..bf3b4bb
--- /dev/null
+++ b/src/java/demos/data/Gun2.wav
diff --git a/src/java/demos/data/chimes.wav b/src/java/demos/data/chimes.wav
new file mode 100755
index 0000000..57899f2
--- /dev/null
+++ b/src/java/demos/data/chimes.wav
diff --git a/src/java/demos/data/ocean.wav b/src/java/demos/data/ocean.wav
new file mode 100755
index 0000000..4fbbfcd
--- /dev/null
+++ b/src/java/demos/data/ocean.wav
diff --git a/src/java/demos/data/rain.wav b/src/java/demos/data/rain.wav
new file mode 100755
index 0000000..a6e36b6
--- /dev/null
+++ b/src/java/demos/data/rain.wav
diff --git a/src/java/demos/data/stream.wav b/src/java/demos/data/stream.wav
new file mode 100755
index 0000000..9c793c4
--- /dev/null
+++ b/src/java/demos/data/stream.wav
diff --git a/src/java/demos/data/thunder.wav b/src/java/demos/data/thunder.wav
new file mode 100755
index 0000000..a1c38f9
--- /dev/null
+++ b/src/java/demos/data/thunder.wav
diff --git a/src/java/demos/data/waterdrop.wav b/src/java/demos/data/waterdrop.wav
new file mode 100755
index 0000000..4e4c6da
--- /dev/null
+++ b/src/java/demos/data/waterdrop.wav
diff --git a/src/java/demos/devmaster/lesson1/SingleStaticSource.java b/src/java/demos/devmaster/lesson1/SingleStaticSource.java
new file mode 100755
index 0000000..4c4c945
--- /dev/null
+++ b/src/java/demos/devmaster/lesson1/SingleStaticSource.java
@@ -0,0 +1,185 @@
+/**
+ * Copyright (c) 2003 Sun Microsystems, Inc. All  Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * -Redistribution of source code must retain the above copyright notice, 
+ * this list of conditions and the following disclaimer.
+ *
+ * -Redistribution in binary form must reproduce the above copyright notice, 
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of Sun Microsystems, Inc. or the names of contributors may 
+ * be used to endorse or promote products derived from this software without 
+ * specific prior written permission.
+ * 
+ * This software is provided "AS IS," without a warranty of any kind.
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
+ * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
+ * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS
+ * LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A
+ * RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
+ * IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT
+ * OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR
+ * PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS
+ * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ *
+ * You acknowledge that this software is not designed or intended for use in the
+ * design, construction, operation or maintenance of any nuclear facility.
+ *
+ */
+
+package demos.devmaster.lesson1;
+
+import java.io.*;
+import java.nio.ByteBuffer;
+
+import net.java.games.joal.*;
+import net.java.games.joal.util.*;
+
+/**
+ * Adapted from <a href="http://www.devmaster.net/">DevMaster</a>
+ * <a href="http://www.devmaster.net/articles/openal-tutorials/lesson1.php">SingleStaticSource Tutorial</a>
+ * by Jesse Maurais.
+ *
+ * @author Athomas Goldberg
+ * @author Kenneth Russell
+ */
+
+public class SingleStaticSource {
+
+  static AL al;
+
+  // Buffers hold sound data.
+  static int[] buffer = new int[1];
+
+  // Sources are points emitting sound.
+  static int[] source = new int[1];
+
+  // Position of the source sound.
+  static float[] sourcePos = { 0.0f, 0.0f, 0.0f };
+
+  // Velocity of the source sound.
+  static float[] sourceVel = { 0.0f, 0.0f, 0.0f };
+
+  // Position of the listener.
+  static float[] listenerPos = { 0.0f, 0.0f, 0.0f };
+
+  // Velocity of the listener.
+  static float[] listenerVel = { 0.0f, 0.0f, 0.0f };
+
+  // Orientation of the listener. (first 3 elems are "at", second 3 are "up")
+  static float[] listenerOri = { 0.0f, 0.0f, -1.0f, 0.0f, 1.0f, 0.0f };
+
+  static int loadALData() {
+
+    // variables to load into
+
+    int[] format = new int[1];
+    int[] size = new int[1];
+    ByteBuffer[] data = new ByteBuffer[1];
+    int[] freq = new int[1];
+    int[] loop = new int[1];
+
+    // Load wav data into a buffer.
+    al.alGenBuffers(1, buffer, 0);
+    if (al.alGetError() != AL.AL_NO_ERROR)
+      return AL.AL_FALSE;
+
+    ALut.alutLoadWAVFile(
+      SingleStaticSource.class.getClassLoader().getResourceAsStream("demos/data/FancyPants.wav"),
+      format,
+      data,
+      size,
+      freq,
+      loop);
+    if (data[0] == null) {
+      throw new RuntimeException("Error loading WAV file");
+    }
+    System.out.println("sound size = " + size[0]);
+    System.out.println("sound freq = " + freq[0]);
+    al.alBufferData(buffer[0], format[0], data[0], size[0], freq[0]);
+
+    // Bind buffer with a source.
+    al.alGenSources(1, source, 0);
+
+    if (al.alGetError() != AL.AL_NO_ERROR)
+      return AL.AL_FALSE;
+
+    al.alSourcei(source[0], AL.AL_BUFFER, buffer[0]);
+    al.alSourcef(source[0], AL.AL_PITCH, 1.0f);
+    al.alSourcef(source[0], AL.AL_GAIN, 1.0f);
+    al.alSourcefv(source[0], AL.AL_POSITION, sourcePos, 0);
+    al.alSourcefv(source[0], AL.AL_VELOCITY, sourceVel, 0);
+    al.alSourcei(source[0], AL.AL_LOOPING, loop[0]);
+
+    // Do another error check and return.
+    if (al.alGetError() == AL.AL_NO_ERROR)
+      return AL.AL_TRUE;
+
+    return AL.AL_FALSE;
+  }
+
+  static void setListenerValues() {
+    al.alListenerfv(AL.AL_POSITION, listenerPos, 0);
+    al.alListenerfv(AL.AL_VELOCITY, listenerVel, 0);
+    al.alListenerfv(AL.AL_ORIENTATION, listenerOri, 0);
+  }
+
+  static void killAllData() {
+    al.alDeleteBuffers(1, buffer, 0);
+    al.alDeleteSources(1, source, 0);
+  }
+
+  public static void main(String[] args) {
+    // Initialize OpenAL and clear the error bit.
+    try {
+      ALut.alutInit();
+      al = ALFactory.getAL();
+      al.alGetError();
+    } catch (ALException e) {
+      e.printStackTrace();
+      return;
+    }
+    // Load the wav data.
+    if (loadALData() == AL.AL_FALSE)
+      System.exit(1);
+
+    setListenerValues();
+
+    char[] c = new char[1];
+    while (c[0] != 'q') {
+      try {
+        BufferedReader buf =
+          new BufferedReader(new InputStreamReader(System.in));
+        System.out.println(
+                           "Press a key and hit ENTER: \n"
+                           + "'p' to play, 's' to stop, " +
+                           "'h' to pause and 'q' to quit");
+        buf.read(c);
+        switch (c[0]) {
+        case 'p' :
+          // Pressing 'p' will begin playing the sample.
+          al.alSourcePlay(source[0]);
+          break;
+        case 's' :
+          // Pressing 's' will stop the sample from playing.
+          al.alSourceStop(source[0]);
+          break;
+        case 'h' :
+          // Pressing 'n' will pause (hold) the sample.
+          al.alSourcePause(source[0]);
+          break;
+        case 'q' :
+          killAllData();
+          break;
+        }
+      } catch (IOException e) {
+        System.exit(1);
+      }
+    }
+  }
+}
diff --git a/src/java/demos/devmaster/lesson2/LoopingAndFadeaway.java b/src/java/demos/devmaster/lesson2/LoopingAndFadeaway.java
new file mode 100755
index 0000000..5095481
--- /dev/null
+++ b/src/java/demos/devmaster/lesson2/LoopingAndFadeaway.java
@@ -0,0 +1,148 @@
+/**
+ * Copyright (c) 2003-2005 Sun Microsystems, Inc. All  Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * -Redistribution of source code must retain the above copyright notice, 
+ * this list of conditions and the following disclaimer.
+ *
+ * -Redistribution in binary form must reproduce the above copyright notice, 
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of Sun Microsystems, Inc. or the names of contributors may 
+ * be used to endorse or promote products derived from this software without 
+ * specific prior written permission.
+ * 
+ * This software is provided "AS IS," without a warranty of any kind.
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
+ * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
+ * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS
+ * LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A
+ * RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
+ * IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT
+ * OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR
+ * PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS
+ * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ *
+ * You acknowledge that this software is not designed or intended for use in the
+ * design, construction, operation or maintenance of any nuclear facility.
+ *
+ */
+
+package demos.devmaster.lesson2;
+
+import java.io.*;
+import java.nio.*;
+
+import net.java.games.joal.*;
+import net.java.games.joal.util.*;
+
+/**
+ * Adapted from <a href="http://www.devmaster.net/">DevMaster</a>
+ * <a href="http://www.devmaster.net/articles/openal-tutorials/lesson2.php">LoopingAndFadeaway Tutorial</a>
+ * by Jesse Maurais.
+ *
+ * @author Athomas Goldberg
+ * @author Kenneth Russell
+ */
+
+public class LoopingAndFadeaway {
+
+  static int[] buffer = new int[1];
+  static int[] source = new int[1];
+  static float[] sourcePos = { 0.0f, 0.0f, 0.0f };
+  static float[] sourceVel = { 0.0f, 0.0f, 0.1f };
+  static float[] listenerPos = { 0.0f, 0.0f, 0.0f };
+  static float[] listenerVel = { 0.0f, 0.0f, 0.0f };
+  static float[] listenerOri = { 0.0f, 0.0f, -1.0f, 0.0f, 1.0f, 0.0f };
+  static AL al;
+  static ALC alc;
+
+  static int loadALData() {
+    if (al.alGetError() != AL.AL_NO_ERROR) {
+      return AL.AL_FALSE;
+    }
+
+    int[] format = new int[1];
+    int[] size = new int[1];
+    ByteBuffer[] data = new ByteBuffer[1];
+    int[] freq = new int[1];
+    int[] loop = new int[1];
+
+    // Load wav data into a buffer.
+    al.alGenBuffers(1, buffer, 0);
+    if (al.alGetError() != AL.AL_NO_ERROR)
+      return AL.AL_FALSE;
+
+    ALut.alutLoadWAVFile(
+      LoopingAndFadeaway.class.getClassLoader().getResourceAsStream("demos/data/Footsteps.wav"),
+      format,
+      data,
+      size,
+      freq,
+      loop);
+    al.alBufferData(buffer[0], format[0], data[0], size[0], freq[0]);
+
+    al.alGenSources(1, source, 0);
+    al.alSourcei(source[0], AL.AL_BUFFER, buffer[0]);
+    al.alSourcef(source[0], AL.AL_PITCH, 1.0f);
+    al.alSourcef(source[0], AL.AL_GAIN, 1.0f);
+    al.alSourcefv(source[0], AL.AL_POSITION, sourcePos, 0);
+    al.alSourcefv(source[0], AL.AL_POSITION, sourceVel, 0);
+    al.alSourcei(source[0], AL.AL_LOOPING, AL.AL_TRUE);
+
+    if (al.alGetError() != AL.AL_NO_ERROR) {
+      return AL.AL_FALSE;
+    }
+
+    return AL.AL_TRUE;
+  }
+
+  static void setListenerValues() {
+    al.alListenerfv(AL.AL_POSITION, listenerPos, 0);
+    al.alListenerfv(AL.AL_VELOCITY, listenerVel, 0);
+    al.alListenerfv(AL.AL_ORIENTATION, listenerOri, 0);
+  }
+
+  static void killAllData() {
+    al.alDeleteBuffers(1, buffer, 0);
+    al.alDeleteSources(1, source, 0);
+  }
+
+  public static void main(String[] args) {
+    try {
+      ALut.alutInit();
+      al = ALFactory.getAL();
+    } catch (ALException e) {
+      e.printStackTrace();
+      return;
+    }
+
+    if(loadALData() == AL.AL_FALSE) {
+      System.exit(1);
+    }; 
+    setListenerValues();
+    al.alSourcePlay(source[0]);
+    long startTime = System.currentTimeMillis();
+    long elapsed = 0;
+    long ticker = 0;
+    long lastTime = 0;
+    while (elapsed < 10000) {
+      elapsed = System.currentTimeMillis() - startTime;            
+      if (ticker > 100) {
+        ticker = 0;
+        sourcePos[0] += sourceVel[0];
+        sourcePos[1] += sourceVel[1];
+        sourcePos[2] += sourceVel[2];
+        al.alSourcefv(source[0],
+                      AL.AL_POSITION,
+                      sourcePos, 0);
+      }
+      ticker += System.currentTimeMillis() - lastTime;
+      lastTime = System.currentTimeMillis(); 
+    }
+  }
+}
diff --git a/src/java/demos/devmaster/lesson3/MultipleSources.java b/src/java/demos/devmaster/lesson3/MultipleSources.java
new file mode 100755
index 0000000..fbe13f8
--- /dev/null
+++ b/src/java/demos/devmaster/lesson3/MultipleSources.java
@@ -0,0 +1,211 @@
+/**
+ * Copyright (c) 2003-2005 Sun Microsystems, Inc. All  Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * -Redistribution of source code must retain the above copyright notice, 
+ * this list of conditions and the following disclaimer.
+ *
+ * -Redistribution in binary form must reproduce the above copyright notice, 
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of Sun Microsystems, Inc. or the names of contributors may 
+ * be used to endorse or promote products derived from this software without 
+ * specific prior written permission.
+ * 
+ * This software is provided "AS IS," without a warranty of any kind.
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
+ * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
+ * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS
+ * LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A
+ * RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
+ * IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT
+ * OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR
+ * PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS
+ * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ *
+ * You acknowledge that this software is not designed or intended for use in the
+ * design, construction, operation or maintenance of any nuclear facility.
+ *
+ */
+
+package demos.devmaster.lesson3;
+
+import java.nio.ByteBuffer;
+import java.util.Random;
+
+import net.java.games.joal.*;
+import net.java.games.joal.util.*;
+
+/**
+ * Adapted from <a href="http://www.devmaster.net/">DevMaster</a>
+ * <a href="http://www.devmaster.net/articles/openal-tutorials/lesson3.php">MultipleSources Tutorial</a>
+ * by Jesse Maurais.
+ *
+ * @author Athomas Goldberg
+ * @author Kenneth Russell
+ */
+
+public class MultipleSources {
+
+  static AL al;
+  static final int NUM_BUFFERS = 3;
+  static final int NUM_SOURCES = 3;
+
+  static final int BATTLE = 0;
+  static final int GUN1 = 1;
+  static final int GUN2 = 2;
+
+  static int[] buffers = new int[NUM_BUFFERS];
+  static int[] sources = new int[NUM_SOURCES];
+
+  static float[][] sourcePos = new float[NUM_SOURCES][3];
+  static float[][] sourceVel = new float[NUM_SOURCES][3];
+  static float[] listenerPos = { 0.0f, 0.0f, 0.0f };
+  static float[] listenerVel = { 0.0f, 0.0f, 0.0f };
+  static float[] listenerOri = { 0.0f, 0.0f, -1.0f, 0.0f, 1.0f, 0.0f };
+
+  static int loadALData() {
+    //variables to load into
+    int[] format = new int[1];
+    int[] size = new int[1];
+    ByteBuffer[] data = new ByteBuffer[1];
+    int[] freq = new int[1];
+    int[] loop = new int[1];
+        
+    // load wav data into buffers
+    al.alGenBuffers(NUM_BUFFERS, buffers, 0);
+    if (al.alGetError() != AL.AL_NO_ERROR) {
+      return AL.AL_FALSE;
+    }
+
+    ALut.alutLoadWAVFile(
+      MultipleSources.class.getClassLoader().getResourceAsStream("demos/data/Battle.wav"),
+      format,
+      data,
+      size,
+      freq,
+      loop);
+    al.alBufferData(buffers[BATTLE],
+                    format[0],
+                    data[0],
+                    size[0],
+                    freq[0]);
+
+    ALut.alutLoadWAVFile(
+      MultipleSources.class.getClassLoader().getResourceAsStream("demos/data/Gun1.wav"),
+      format,
+      data,
+      size,
+      freq,
+      loop);
+    al.alBufferData(buffers[GUN1],
+                    format[0],
+                    data[0],
+                    size[0],
+                    freq[0]);
+
+    ALut.alutLoadWAVFile(
+      MultipleSources.class.getClassLoader().getResourceAsStream("demos/data/Gun2.wav"),
+      format,
+      data,
+      size,
+      freq,
+      loop);
+    al.alBufferData(buffers[GUN2],
+                    format[0],
+                    data[0],
+                    size[0],
+                    freq[0]);
+
+    // bind buffers into audio sources
+    al.alGenSources(NUM_SOURCES, sources, 0);
+
+    al.alSourcei(sources[BATTLE], AL.AL_BUFFER, buffers[BATTLE]);
+    al.alSourcef(sources[BATTLE], AL.AL_PITCH, 1.0f);
+    al.alSourcef(sources[BATTLE], AL.AL_GAIN, 1.0f);
+    al.alSourcefv(sources[BATTLE], AL.AL_POSITION, sourcePos[BATTLE], 0);
+    al.alSourcefv(sources[BATTLE], AL.AL_POSITION, sourceVel[BATTLE], 0);
+    al.alSourcei(sources[BATTLE], AL.AL_LOOPING, AL.AL_TRUE);
+
+    al.alSourcei(sources[GUN1], AL.AL_BUFFER, buffers[GUN1]);
+    al.alSourcef(sources[GUN1], AL.AL_PITCH, 1.0f);
+    al.alSourcef(sources[GUN1], AL.AL_GAIN, 1.0f);
+    al.alSourcefv(sources[GUN1], AL.AL_POSITION, sourcePos[GUN1], 0);
+    al.alSourcefv(sources[GUN1], AL.AL_POSITION, sourceVel[GUN1], 0);
+    al.alSourcei(sources[GUN1], AL.AL_LOOPING, AL.AL_FALSE);
+
+    al.alSourcei(sources[GUN2], AL.AL_BUFFER, buffers[GUN2]);
+    al.alSourcef(sources[GUN2], AL.AL_PITCH, 1.0f);
+    al.alSourcef(sources[GUN2], AL.AL_GAIN, 1.0f);
+    al.alSourcefv(sources[GUN2], AL.AL_POSITION, sourcePos[GUN2], 0);
+    al.alSourcefv(sources[GUN2], AL.AL_POSITION, sourceVel[GUN2], 0);
+    al.alSourcei(sources[GUN2], AL.AL_LOOPING, AL.AL_FALSE);
+
+    // do another error check and return
+    if (al.alGetError() != AL.AL_NO_ERROR) {
+      return AL.AL_FALSE;
+    }
+
+    return AL.AL_TRUE;
+  }
+
+  static void setListenerValues() {
+    al.alListenerfv(AL.AL_POSITION, listenerPos, 0);
+    al.alListenerfv(AL.AL_VELOCITY, listenerVel, 0);
+    al.alListenerfv(AL.AL_ORIENTATION, listenerOri, 0);
+  }
+
+  static void killAllData() {
+    al.alDeleteBuffers(NUM_BUFFERS, buffers, 0);
+    al.alDeleteSources(NUM_SOURCES, sources, 0);
+  }
+
+  public static void main(String[] args) {
+    try {
+      ALut.alutInit();
+      al = ALFactory.getAL();
+    } catch (ALException e) {
+      e.printStackTrace();
+      System.exit(1);
+    }
+    al.alGetError();
+        
+    if(loadALData() == AL.AL_FALSE) {
+      System.exit(1);    
+    }
+    setListenerValues();
+    al.alSourcePlay(sources[BATTLE]);
+    long startTime = System.currentTimeMillis();
+    long elapsed = 0;
+    long totalElapsed = 0;
+    Random rand = new Random();
+    int[] state = new int[1];
+    while (totalElapsed < 10000) {
+      elapsed = System.currentTimeMillis() - startTime;
+      if (elapsed > 50) {
+        totalElapsed += elapsed;
+        startTime = System.currentTimeMillis();
+        // pick one of the two guns
+        int pick = Math.abs((rand.nextInt()) % 2) + 1;
+        al.alGetSourcei(sources[pick], AL.AL_SOURCE_STATE, state, 0);
+        if (state[0] != AL.AL_PLAYING) {
+          double theta = (rand.nextInt() % 360) * 3.14 / 180.0;
+          sourcePos[pick][0] = - ((float) Math.cos(theta));
+          sourcePos[pick][1] = - ((float) (rand.nextInt() % 2));
+          sourcePos[pick][2] = - ((float) Math.sin(theta));
+
+          al.alSourcefv(sources[pick],
+                        AL.AL_POSITION,
+                        sourcePos[pick], 0);
+
+          al.alSourcePlay(sources[pick]);
+        }
+      }
+    }
+    killAllData();
+  }
+}
diff --git a/src/java/demos/devmaster/lesson5/SourcesSharingBuffers.java b/src/java/demos/devmaster/lesson5/SourcesSharingBuffers.java
new file mode 100755
index 0000000..091f8b3
--- /dev/null
+++ b/src/java/demos/devmaster/lesson5/SourcesSharingBuffers.java
@@ -0,0 +1,268 @@
+/**
+ * Copyright (c) 2003-2005 Sun Microsystems, Inc. All  Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * -Redistribution of source code must retain the above copyright notice, 
+ * this list of conditions and the following disclaimer.
+ *
+ * -Redistribution in binary form must reproduce the above copyright notice, 
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of Sun Microsystems, Inc. or the names of contributors may 
+ * be used to endorse or promote products derived from this software without 
+ * specific prior written permission.
+ * 
+ * This software is provided "AS IS," without a warranty of any kind.
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
+ * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
+ * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS
+ * LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A
+ * RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
+ * IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT
+ * OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR
+ * PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS
+ * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ *
+ * You acknowledge that this software is not designed or intended for use in the
+ * design, construction, operation or maintenance of any nuclear facility.
+ *
+ */
+
+package demos.devmaster.lesson5;
+
+import java.io.*;
+import java.nio.*;
+import java.util.*;
+
+import net.java.games.joal.*;
+import net.java.games.joal.util.*;
+
+/**
+ * Adapted from <a href="http://www.devmaster.net/">DevMaster</a>
+ * <a href="http://www.devmaster.net/articles/openal-tutorials/lesson3.php">MultipleSources Tutorial</a>
+ * by Jesse Maurais.
+ *
+ * @author Athomas Goldberg
+ * @author Kenneth Russell
+ */
+
+public class SourcesSharingBuffers {
+
+  static ALC alc;
+  static AL al;
+
+  //     These index the buffers.
+  public static final int THUNDER     = 0;
+  public static final int WATERDROP   = 1;
+  public static final int STREAM      = 2;
+  public static final int RAIN        = 3;
+
+  public static final int CHIMES      = 4;
+  public static final int OCEAN       = 5;
+  public static final int NUM_BUFFERS = 6;
+
+  //     Buffers hold sound data.
+  static int[] buffers = new int[NUM_BUFFERS];
+
+  //     A list of sources for multiple emissions.
+  static List sources = new ArrayList();
+
+  //  Position of the source sounds.
+  static float[] sourcePos = { 0.0f, 0.0f, 0.0f };
+
+  //  Velocity of the source sounds.
+  static float[] sourceVel = { 0.0f, 0.0f, 0.0f };
+
+
+
+  //  Position of the listener.
+  static float[] listenerPos = { 0.0f, 0.0f, 0.0f };
+
+  //  Velocity of the listener.
+  static float[] listenerVel = { 0.0f, 0.0f, 0.0f };
+
+  //  Orientation of the listener. (first 3 elements are "at", second 3 are "up")
+  static float[] listenerOri = { 0.0f, 0.0f, -1.0f, 0.0f, 1.0f, 0.0f };
+
+  static void initOpenAL() throws ALException {
+    alc = ALFactory.getALC();
+    al = ALFactory.getAL();
+
+    ALCdevice device;
+    ALCcontext context;
+    String deviceSpecifier;
+
+    // Get handle to default device.
+    device = alc.alcOpenDevice(null);
+    if (device == null) {
+      throw new ALException("Error opening default OpenAL device");
+    }
+
+    // Get the device specifier.
+    deviceSpecifier = alc.alcGetString(device, ALC.ALC_DEVICE_SPECIFIER);
+    if (deviceSpecifier == null) {
+      throw new ALException("Error getting specifier for default OpenAL device");
+    }
+
+    System.out.println("Using device " + deviceSpecifier);
+
+    // Create audio context.
+    context = alc.alcCreateContext(device, null);
+    if (context == null) {
+      throw new ALException("Error creating OpenAL context");
+    }
+
+    // Set active context.
+    alc.alcMakeContextCurrent(context);
+
+    // Check for an error.
+    if (alc.alcGetError(device) != ALC.ALC_NO_ERROR) {
+      throw new ALException("Error making OpenAL context current");
+    }
+  }
+
+  static void exitOpenAL() {
+    ALCcontext curContext;
+    ALCdevice curDevice;
+
+    // Get the current context.
+    curContext = alc.alcGetCurrentContext();
+
+    // Get the device used by that context.
+    curDevice = alc.alcGetContextsDevice(curContext);
+
+    // Reset the current context to NULL.
+    alc.alcMakeContextCurrent(null);
+
+    // Release the context and the device.
+    alc.alcDestroyContext(curContext);
+    alc.alcCloseDevice(curDevice);
+  }
+  static int loadALData() {
+    // Variables to load into.
+    int[] format = new int[1];
+    int[] size = new int[1];
+    ByteBuffer[] data = new ByteBuffer[1];
+    int[] freq = new int[1];
+    int[] loop = new int[1];
+
+    // Load wav data into buffers.
+    al.alGenBuffers(NUM_BUFFERS, buffers, 0);
+
+    if(al.alGetError() != AL.AL_NO_ERROR)
+      return AL.AL_FALSE;
+
+    ALut.alutLoadWAVFile(SourcesSharingBuffers.class.getClassLoader().getResourceAsStream("demos/data/thunder.wav"),
+                         format, data, size, freq, loop);
+    al.alBufferData(buffers[THUNDER], format[0], data[0], size[0], freq[0]);
+
+    ALut.alutLoadWAVFile(SourcesSharingBuffers.class.getClassLoader().getResourceAsStream("demos/data/waterdrop.wav"),
+                         format, data, size, freq, loop);
+    al.alBufferData(buffers[WATERDROP], format[0], data[0], size[0], freq[0]);
+
+    ALut.alutLoadWAVFile(SourcesSharingBuffers.class.getClassLoader().getResourceAsStream("demos/data/stream.wav"),
+                         format, data, size, freq, loop);
+    al.alBufferData(buffers[STREAM], format[0], data[0], size[0], freq[0]);
+
+    ALut.alutLoadWAVFile(SourcesSharingBuffers.class.getClassLoader().getResourceAsStream("demos/data/rain.wav"),
+                         format, data, size, freq, loop);
+    al.alBufferData(buffers[RAIN], format[0], data[0], size[0], freq[0]);
+
+    ALut.alutLoadWAVFile(SourcesSharingBuffers.class.getClassLoader().getResourceAsStream("demos/data/ocean.wav"),
+                         format, data, size, freq, loop);
+    al.alBufferData(buffers[OCEAN], format[0], data[0], size[0], freq[0]);
+
+    ALut.alutLoadWAVFile(SourcesSharingBuffers.class.getClassLoader().getResourceAsStream("demos/data/chimes.wav"),
+                         format, data, size, freq, loop);
+    al.alBufferData(buffers[CHIMES], format[0], data[0], size[0], freq[0]);
+
+    // Do another error check and return.
+    if (al.alGetError() != AL.AL_NO_ERROR)
+      return AL.AL_FALSE;
+
+    return AL.AL_TRUE;
+  }
+
+  static void addSource(int type) {
+    int[] source = new int[1];
+
+    al.alGenSources(1, source, 0);
+
+    if (al.alGetError() != AL.AL_NO_ERROR) {
+      System.err.println("Error generating audio source.");
+      System.exit(1);
+    }
+
+    al.alSourcei (source[0], AL.AL_BUFFER,   buffers[type]);
+    al.alSourcef (source[0], AL.AL_PITCH,    1.0f          );
+    al.alSourcef (source[0], AL.AL_GAIN,     1.0f          );
+    al.alSourcefv(source[0], AL.AL_POSITION, sourcePos    , 0);
+    al.alSourcefv(source[0], AL.AL_VELOCITY, sourceVel    , 0);
+    al.alSourcei (source[0], AL.AL_LOOPING,  AL.AL_TRUE      );
+
+    al.alSourcePlay(source[0]);
+
+    sources.add(new Integer(source[0]));
+  }
+
+  static void setListenerValues() {
+    al.alListenerfv(AL.AL_POSITION,    listenerPos, 0);
+    al.alListenerfv(AL.AL_VELOCITY,    listenerVel, 0);
+    al.alListenerfv(AL.AL_ORIENTATION, listenerOri, 0);
+  }
+
+  static void killALData() {
+    for (Iterator iter = sources.iterator(); iter.hasNext(); ) {
+      al.alDeleteSources(1, new int[] { ((Integer)iter.next()).intValue() }, 0);
+    }
+    sources.clear();
+    al.alDeleteBuffers(NUM_BUFFERS, buffers, 0);
+    exitOpenAL();
+  }
+
+  public static void main(String[] args) {
+    try {
+      initOpenAL();
+    } catch (ALException e) {
+      e.printStackTrace();
+      System.exit(1);
+    }
+    if (loadALData() == AL.AL_FALSE) {
+      System.exit(1);
+    }
+    setListenerValues();
+    char[] c = new char[1];
+    while(c[0] != 'q') {    
+      try {
+        BufferedReader buf =
+          new BufferedReader(new InputStreamReader(System.in));
+        System.out.println("Press a key and hit ENTER: \n" +
+                           "\t'w' for Water Drop\n" +
+                           "\t't' for Thunder\n" +
+                           "\t's' for Stream\n" +
+                           "\t'r' for Rain\n" +
+                           "\t'o' for Ocean\n" +
+                           "\t'c' for Chimes\n" +
+                           "\n'q' to Quit\n");
+
+        buf.read(c);
+        switch(c[0]) {
+        case 'w': addSource(WATERDROP); break;
+        case 't': addSource(THUNDER); break;
+        case 's': addSource(STREAM); break;
+        case 'r': addSource(RAIN); break;
+        case 'o': addSource(OCEAN); break;
+        case 'c': addSource(CHIMES); break;
+        }
+      } catch (IOException e) {
+        killALData();
+        System.exit(1);
+      }
+    }
+    killALData();
+  }
+}