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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;
/**
* The AuralParameters Class defines a set of fields that define the
* Aural listening environment. Many of the parameters correspond to
* AuralAttribute fields.
*
* <p>
* Error checking on all parameters passed to these methods is already
* explicitly being done by the Java 3D core code that calls these methods.
*/
public class AuralParameters
{
// Speed of Sound in meters/milliseconds
public static final float SPEED_OF_SOUND = 0.344f;
public static final int NO_FILTERING = -1;
public float rolloff = 1.0f;
public float reflectionCoefficient = 0.0f;
public float reverbDelay = 40.0f;
public int reverbOrder = 0;
public float frequencyScaleFactor = 1.0f;
public float velocityScaleFactor = 0.0f;
int filterType = NO_FILTERING;
double[] filterDistance = null;
float[] filterCutoff = null;
/*
* @since Java 3D 1.3
*/
public float reverbCoefficient = 1.0f;
public float reflectionDelay = 20.0f;
public float decayTime = 1000.0f;
public float decayFrequencyCutoff = 5000.0f;
public float diffusion = 1.0f; // 100%
public float density = 1.0f; // 100%
/**
* Construct a new AuralParameters object
*/
public AuralParameters() {
frequencyScaleFactor = 1.0f;
velocityScaleFactor = 0.0f;
rolloff = 1.0f;
reflectionCoefficient = 0.0f;
reflectionDelay = 20.0f;
reverbCoefficient = 1.0f;
reverbDelay = 40.0f;
reverbOrder = 0;
filterType = NO_FILTERING;
filterDistance = new double[2]; // start out with array of two
filterCutoff = new float[2]; // start out with array of two
decayTime = 1000.0f;
decayFrequencyCutoff = 5000.0f;
diffusion = 1.0f; // 100%
density = 1.0f; // 100%
}
public void setDistanceFilter(int filterType, double[] distance,
float[] filterCutoff) {
boolean error = false;
boolean allocate = false;
int attenuationLength = 0;
if (distance == null || filterCutoff == null) {
error = true;
}
else {
attenuationLength = distance.length;
if (attenuationLength == 0 || filterType == NO_FILTERING) {
error = true;
}
}
if (error) {
this.filterType = NO_FILTERING;
this.filterDistance = null;
this.filterCutoff = null;
if (debugFlag)
debugPrint("setDistanceFilter NO_FILTERING");
return;
}
this.filterType = filterType;
if (debugFlag)
debugPrint("setDistanceFilter type = " + filterType);
if ((filterDistance == null) || (filterCutoff == null)) {
allocate = true;
}
else if (attenuationLength > filterDistance.length) {
allocate = true;
}
if (allocate) {
if (debugFlag)
debugPrint("setDistanceFilter length = " + attenuationLength);
this.filterDistance = new double[attenuationLength];
this.filterCutoff = new float[attenuationLength];
}
System.arraycopy(distance, 0, this.filterDistance, 0,
attenuationLength);
System.arraycopy(filterCutoff, 0, this.filterCutoff, 0,
attenuationLength);
if (debugFlag) {
debugPrint("setDistanceFilter arrays = ");
for (int i=0; i<attenuationLength; i++)
debugPrint(this.filterDistance[i] + "," + this.filterCutoff[i]);
debugPrint("setDistanceFilter passed in = ");
for (int i=0; i<attenuationLength; i++)
debugPrint((float)(filterDistance[i]) + "," + filterCutoff[i]);
}
return;
}
public int getDistanceFilterLength() {
if (filterDistance != null)
return filterDistance.length;
return 0;
}
public int getDistanceFilterType() {
return filterType;
}
public void getDistanceFilter(double[] distance, float[] filterCutoff) {
if (distance == null || filterCutoff == null)
return;
int attenuationLength = distance.length;
if (attenuationLength == 0 ||
(filterDistance==null) || (filterCutoff==null))
return;
if (attenuationLength > filterDistance.length)
attenuationLength = filterDistance.length;
System.arraycopy(this.filterDistance, 0, distance, 0,
attenuationLength);
System.arraycopy(this.filterCutoff, 0, filterCutoff, 0,
attenuationLength);
return;
}
// Debug print flags
static final boolean debugFlag = false;
static final boolean internalErrors = false;
/**
* Debug print method for Sound nodes
*/
protected void debugPrint(String message) {
if (debugFlag)
System.out.println(message);
}
}
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