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/**
* 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();
}
}
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