1 files changed, 211 insertions, 0 deletions
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();
+  }
+}