Source Code Cross Referenced for AuralParameters.java in  » 6.0-JDK-Modules » java-3d » com » sun » j3d » audioengines » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Modules » java 3d » com.sun.j3d.audioengines 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * $RCSfile: AuralParameters.java,v $
003:         *
004:         * Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved.
005:         *
006:         * Redistribution and use in source and binary forms, with or without
007:         * modification, are permitted provided that the following conditions
008:         * are met:
009:         *
010:         * - Redistribution of source code must retain the above copyright
011:         *   notice, this list of conditions and the following disclaimer.
012:         *
013:         * - Redistribution in binary form must reproduce the above copyright
014:         *   notice, this list of conditions and the following disclaimer in
015:         *   the documentation and/or other materials provided with the
016:         *   distribution.
017:         *
018:         * Neither the name of Sun Microsystems, Inc. or the names of
019:         * contributors may be used to endorse or promote products derived
020:         * from this software without specific prior written permission.
021:         *
022:         * This software is provided "AS IS," without a warranty of any
023:         * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
024:         * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
025:         * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
026:         * EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
027:         * NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
028:         * USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
029:         * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR
030:         * ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
031:         * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
032:         * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
033:         * INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
034:         * POSSIBILITY OF SUCH DAMAGES.
035:         *
036:         * You acknowledge that this software is not designed, licensed or
037:         * intended for use in the design, construction, operation or
038:         * maintenance of any nuclear facility.
039:         *
040:         * $Revision: 1.4 $
041:         * $Date: 2007/02/09 17:20:02 $
042:         * $State: Exp $
043:         */
044:
045:        package com.sun.j3d.audioengines;
046:
047:        import javax.media.j3d.*;
048:        import javax.vecmath.*;
049:
050:        /**
051:         * The AuralParameters Class defines a set of fields that define the
052:         * Aural listening environment.  Many of the parameters correspond to
053:         * AuralAttribute fields.
054:         *
055:         * <p>
056:         * Error checking on all parameters passed to these methods is already
057:         * explicitly being done by the Java 3D core code that calls these methods.
058:         */
059:
060:        public class AuralParameters {
061:            // Speed of Sound in meters/milliseconds
062:            public static final float SPEED_OF_SOUND = 0.344f;
063:            public static final int NO_FILTERING = -1;
064:
065:            public float rolloff = 1.0f;
066:            public float reflectionCoefficient = 0.0f;
067:            public float reverbDelay = 40.0f;
068:            public int reverbOrder = 0;
069:            public float frequencyScaleFactor = 1.0f;
070:            public float velocityScaleFactor = 0.0f;
071:            int filterType = NO_FILTERING;
072:            double[] filterDistance = null;
073:            float[] filterCutoff = null;
074:
075:            /*
076:             * @since Java 3D 1.3
077:             */
078:            public float reverbCoefficient = 1.0f;
079:            public float reflectionDelay = 20.0f;
080:            public float decayTime = 1000.0f;
081:            public float decayFrequencyCutoff = 5000.0f;
082:            public float diffusion = 1.0f; // 100%
083:            public float density = 1.0f; // 100%
084:
085:            /**
086:             * Construct a new AuralParameters object
087:             */
088:            public AuralParameters() {
089:                frequencyScaleFactor = 1.0f;
090:                velocityScaleFactor = 0.0f;
091:                rolloff = 1.0f;
092:                reflectionCoefficient = 0.0f;
093:                reflectionDelay = 20.0f;
094:                reverbCoefficient = 1.0f;
095:                reverbDelay = 40.0f;
096:                reverbOrder = 0;
097:                filterType = NO_FILTERING;
098:                filterDistance = new double[2]; // start out with array of two
099:                filterCutoff = new float[2]; // start out with array of two
100:                decayTime = 1000.0f;
101:                decayFrequencyCutoff = 5000.0f;
102:                diffusion = 1.0f; // 100%
103:                density = 1.0f; // 100%
104:            }
105:
106:            public void setDistanceFilter(int filterType, double[] distance,
107:                    float[] filterCutoff) {
108:                boolean error = false;
109:                boolean allocate = false;
110:                int attenuationLength = 0;
111:                if (distance == null || filterCutoff == null) {
112:                    error = true;
113:                } else {
114:                    attenuationLength = distance.length;
115:                    if (attenuationLength == 0 || filterType == NO_FILTERING) {
116:                        error = true;
117:                    }
118:                }
119:                if (error) {
120:                    this .filterType = NO_FILTERING;
121:                    this .filterDistance = null;
122:                    this .filterCutoff = null;
123:                    if (debugFlag)
124:                        debugPrint("setDistanceFilter NO_FILTERING");
125:                    return;
126:                }
127:                this .filterType = filterType;
128:                if (debugFlag)
129:                    debugPrint("setDistanceFilter type = " + filterType);
130:                if ((filterDistance == null) || (filterCutoff == null)) {
131:                    allocate = true;
132:                } else if (attenuationLength > filterDistance.length) {
133:                    allocate = true;
134:                }
135:                if (allocate) {
136:                    if (debugFlag)
137:                        debugPrint("setDistanceFilter length = "
138:                                + attenuationLength);
139:                    this .filterDistance = new double[attenuationLength];
140:                    this .filterCutoff = new float[attenuationLength];
141:                }
142:                System.arraycopy(distance, 0, this .filterDistance, 0,
143:                        attenuationLength);
144:                System.arraycopy(filterCutoff, 0, this .filterCutoff, 0,
145:                        attenuationLength);
146:
147:                if (debugFlag) {
148:                    debugPrint("setDistanceFilter arrays = ");
149:                    for (int i = 0; i < attenuationLength; i++)
150:                        debugPrint(this .filterDistance[i] + ","
151:                                + this .filterCutoff[i]);
152:                    debugPrint("setDistanceFilter passed in = ");
153:                    for (int i = 0; i < attenuationLength; i++)
154:                        debugPrint((float) (filterDistance[i]) + ","
155:                                + filterCutoff[i]);
156:                }
157:                return;
158:            }
159:
160:            public int getDistanceFilterLength() {
161:                if (filterDistance != null)
162:                    return filterDistance.length;
163:                return 0;
164:            }
165:
166:            public int getDistanceFilterType() {
167:                return filterType;
168:            }
169:
170:            public void getDistanceFilter(double[] distance,
171:                    float[] filterCutoff) {
172:                if (distance == null || filterCutoff == null)
173:                    return;
174:                int attenuationLength = distance.length;
175:                if (attenuationLength == 0 || (filterDistance == null)
176:                        || (filterCutoff == null))
177:                    return;
178:                if (attenuationLength > filterDistance.length)
179:                    attenuationLength = filterDistance.length;
180:                System.arraycopy(this .filterDistance, 0, distance, 0,
181:                        attenuationLength);
182:                System.arraycopy(this .filterCutoff, 0, filterCutoff, 0,
183:                        attenuationLength);
184:                return;
185:            }
186:
187:            // Debug print flags
188:            static final boolean debugFlag = false;
189:            static final boolean internalErrors = false;
190:
191:            /**
192:             * Debug print method for Sound nodes
193:             */
194:            protected void debugPrint(String message) {
195:                if (debugFlag)
196:                    System.out.println(message);
197:            }
198:
199:        }
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