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/*
* Copyright (c) 2007 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, licensed or
* intended for use in the design, construction, operation or
* maintenance of any nuclear facility.
*
*/
package com.sun.j3d.audioengines;
import javax.media.j3d.MediaContainer;
import javax.media.j3d.Sound;
import javax.media.j3d.Transform3D;
import javax.media.j3d.View;
import javax.vecmath.Point3d;
import javax.vecmath.Point3f;
import javax.vecmath.Vector3d;
import javax.vecmath.Vector3f;
/**
* The Sample class defines the data and methods associated with a sound
* sample played through the AudioDevice.
* This contains all the data fields for non-spatialized and spatialized
* (positional and directional) sound samples.
*/
public class Sample {
// Debug print flags and methods
static final protected boolean debugFlag = false;
static final protected boolean internalErrors = false;
protected void debugPrint(String message) {
if (debugFlag)
System.out.println(message);
}
protected void debugPrintln(String message) {
if (debugFlag)
System.out.println(message);
}
/**
* Null Sound identifier denotes sound is not created or initialized
*/
public static final int NULL_SAMPLE = -1;
/**
* sound data associated with sound source
*/
protected MediaContainer soundData = null;
/**
* sound data associated with sound source
*/
protected int soundType = -1;
/**
* Overall Scale Factor applied to sound gain.
*/
protected float gain = 1.0f; // Valid values are >= 0.0.
/**
* Overall Scale Factor applied to sound.
* @since Java 3D 1.3
*/
protected float rateScaleFactor = 1.0f; // Valid values are >= 0.0.
/**
* Number of times sound is looped/repeated during play
*/
protected int loopCount = 0; // Range from 0 to POSITIVE_INFINITY(-1)
/*
* Duration of sample
* This should match the Sound node constant of same name
*/
public static final int DURATION_UNKNOWN = -1;
protected long duration = DURATION_UNKNOWN;
protected int numberOfChannels = 0;
protected boolean mute = false; // denotes if sample is muted
// (playing with zero gain)
/*
*
* Fields associated with positional sound samples
*
*/
/*
* Local to Vworld transform
*/
protected Transform3D vworldXfrm = new Transform3D();
protected boolean vwXfrmFlag = false;
/*
* Origin of Sound source in Listener's space.
*/
protected Point3f position = new Point3f(0.0f, 0.0f, 0.0f);
/*
* Pairs of distances and gain scale factors that define piecewise linear
* gain attenuation between each pair.
*/
protected double[] attenuationDistance = null;
protected float[] attenuationGain = null;;
/**
* dirty flags denoting what has changed since last rendering
*/
protected int dirtyFlags = 0xFFFF;
/*
*
* Direction sample fields
*
*/
/**
* The Cone Sound's direction vector. This is the cone axis.
*/
protected Vector3f direction = new Vector3f(0.0f, 0.0f, 1.0f);
/**
* Pairs of distances and gain scale factors that define piecewise linear
* gain BACK attenuation between each pair.
* These are used for defining elliptical attenuation regions.
*/
protected double[] backAttenuationDistance = null;
protected float[] backAttenuationGain = null;
/**
* Directional Sound's gain can be attenuated based on the listener's
* location off-angle from the source source direction.
* This can be set by three parameters:
* angular distance in radians
* gain scale factor
* filtering (currently the only filtering supported is lowpass)
*/
protected double[] angularDistance = {0.0, (Math.PI * 0.5)};
protected float[] angularGain = {1.0f, 0.0f};
/**
* Distance Filter
* Each sound source is attenuated by a filter based on it's distance
* from the listener.
* For now the only supported filterType will be LOW_PASS frequency
* cutoff.
* At some time full FIR filtering will be supported.
*/
public static final int NO_FILTERING = -1;
public static final int LOW_PASS = 1;
protected int angularFilterType = NO_FILTERING;
protected float[] angularFilterCutoff = {Sound.NO_FILTER, Sound.NO_FILTER};
/*
* Obstruction and Occlusion parameters
* For now the only type of filtering supported is a low-pass filter
* defined by a frequency cutoff value.
* @since Java 3D 1.3
*/
protected float obstructionGain = 1.0f; // scale factor
protected int obstructionFilterType = NO_FILTERING;
protected float obstructionFilterCutoff = Sound.NO_FILTER;
protected float occlusionGain = 1.0f; // scale factor
protected int occlusionFilterType = NO_FILTERING;
protected float occlusionFilterCutoff = Sound.NO_FILTER;
/*
* Construct a new audio device Sample object
*/
public Sample() {
if (debugFlag)
debugPrintln("Sample constructor");
}
public long getDuration() {
return 0;
}
public long getStartTime() {
return 0;
}
public int getNumberOfChannelsUsed() {
return 0;
}
public void setDirtyFlags(int flags) {
dirtyFlags = flags;
}
public int getDirtyFlags() {
return dirtyFlags;
}
public void setSoundType(int type) {
soundType = type;
}
public int getSoundType() {
return soundType;
}
public void setSoundData(MediaContainer ref) {
soundData = ref;
}
public MediaContainer getSoundData() {
return soundData;
}
public void setMuteFlag(boolean flag) {
mute = flag;
}
public boolean getMuteFlag() {
return mute;
}
public void setVWrldXfrmFlag(boolean flag) {
// this flag is ONLY true if the VirtualWorld Transform is ever set
vwXfrmFlag = flag;
}
public boolean getVWrldXfrmFlag() {
return vwXfrmFlag;
}
public void setGain(float scaleFactor) {
gain = scaleFactor;
}
public float getGain() {
return gain;
}
public void setLoopCount(int count) {
loopCount = count;
}
public int getLoopCount() {
return loopCount;
}
public void setPosition(Point3d position) {
this.position.set(position);
return;
}
// TODO: no get method for Position
public void setDistanceGain(
double[] frontDistance, float[] frontAttenuationScaleFactor,
double[] backDistance, float[] backAttenuationScaleFactor) {
if (frontDistance != null) {
int size = frontDistance.length;
attenuationDistance = new double[size];
attenuationGain = new float[size];
for (int i=0; i
