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Using OpenTK/OpenAL to Develop Cross Platform DIS VOIP Application

, 15 Mar 2010
Application allows voice communications (VOIP) utilizing the Distributed Interactive Simulation protocol (IEEE 1278.1)
MonoDISRadioTransmitter_SourceCode.zip
MonoDISRadioTransmitter
AudioIN
bin
Properties
StyleCop.Cache
AudioOUT
bin
Properties
DISNET
bin
DataStreams
DISPDU
Enumerations
Properties
Utilities
OpenDISRadioTransmitterExample
AudioCodecs
bin
OpenDISRadioTransmitter.csproj.user
OpenTK
OpenTK.Compatibility.dll
OpenTK.dll
OpenTK.GLControl.dll
Properties
Settings.settings
StyleCop.Cache
OpenDISRadioTransmitterSolution.suo
RadioFeatureSelection
bin
Properties
Sockets
bin
Properties
// Copyright (c) 1995-2009 held by the author(s).  All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
//  are met:
// 
//  * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions 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 names of the Naval Postgraduate School (NPS)
//  Modeling Virtual Environments and Simulation (MOVES) Institute
// (http://www.nps.edu and http://www.MovesInstitute.org)
// nor the names of its contributors may be used to endorse or
//  promote products derived from this software without specific
// prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

using System;
using System.Collections.Generic;
using System.Text;
using System.Diagnostics;
using System.Xml.Serialization;
using DISnet.DataStreamUtilities;

namespace DIS1998net
{

    /**
     * Used in the UA pdu; ties together an emmitter and a location. This requires manual cleanup; the beam data should not be attached to each emitter system.
     *
     * Copyright (c) 2008, MOVES Institute, Naval Postgraduate School. All rights reserved.
     * This work is licensed under the BSD open source license, available at https://www.movesinstitute.org/licenses/bsd.html
     *
     * @author DMcG
     * Modified for use with C#:
     * Peter Smith (Naval Air Warfare Center - Training Systems Division)
     */
    [Serializable]
    [XmlRoot]
    [XmlInclude(typeof(AcousticEmitterSystem))]
    [XmlInclude(typeof(Vector3Float))]
    [XmlInclude(typeof(AcousticBeamData))]
    public partial class AcousticEmitterSystemData : Object
    {
        /** Length of emitter system data */
        protected byte  _emitterSystemDataLength;

        /** Number of beams */
        protected byte  _numberOfBeams;

        /** padding */
        protected ushort  _pad2;

        /** This field shall specify the system for a particular UA emitter. */
        protected AcousticEmitterSystem  _acousticEmitterSystem = new AcousticEmitterSystem(); 

        /** Represents the location wrt the entity */
        protected Vector3Float  _emitterLocation = new Vector3Float(); 

        /** For each beam in numberOfBeams, an emitter system. This is not right--the beam records need to be at the end of the PDU, rather than attached to each system. */
        protected List<AcousticBeamData> _beamRecords = new List<AcousticBeamData>(); 

        /** Constructor */
        ///<summary>
        ///Used in the UA pdu; ties together an emmitter and a location. This requires manual cleanup; the beam data should not be attached to each emitter system.
        ///</summary>
        public AcousticEmitterSystemData()
        {
        }

        public int getMarshalledSize()
        {
            int marshalSize = 0; 

            marshalSize = marshalSize + 1;  // _emitterSystemDataLength
            marshalSize = marshalSize + 1;  // _numberOfBeams
            marshalSize = marshalSize + 2;  // _pad2
            marshalSize = marshalSize + _acousticEmitterSystem.getMarshalledSize();  // _acousticEmitterSystem
            marshalSize = marshalSize + _emitterLocation.getMarshalledSize();  // _emitterLocation
            for(int idx=0; idx < _beamRecords.Count; idx++)
            {
                AcousticBeamData listElement = (AcousticBeamData)_beamRecords[idx];
                marshalSize = marshalSize + listElement.getMarshalledSize();
            }

            return marshalSize;
        }


        ///<summary>
        ///Length of emitter system data
        ///</summary>
        public void setEmitterSystemDataLength(byte pEmitterSystemDataLength)
        { 
            _emitterSystemDataLength = pEmitterSystemDataLength;
        }

        [XmlElement(Type= typeof(byte), ElementName="emitterSystemDataLength")]
        public byte EmitterSystemDataLength
        {
            get
            {
                return _emitterSystemDataLength;
            }
            set
            {
                _emitterSystemDataLength = value;
            }
        }

        /// <summary>
        /// Note that setting this value will not change the marshalled value. The list whose length this describes is used for that purpose.
        /// The getnumberOfBeams method will also be based on the actual list length rather than this value. 
        /// The method is simply here for completeness and should not be used for any computations.
        /// </summary>
        public void setNumberOfBeams(byte pNumberOfBeams)
        {
            _numberOfBeams = pNumberOfBeams;
        }

        /// <summary>
        /// Note that setting this value will not change the marshalled value. The list whose length this describes is used for that purpose.
        /// The getnumberOfBeams method will also be based on the actual list length rather than this value. 
        /// The method is simply here for completeness and should not be used for any computations.
        /// </summary>
        [XmlElement(Type= typeof(byte), ElementName="numberOfBeams")]
        public byte NumberOfBeams
        {
            get
            {
                return _numberOfBeams;
            }
            set
            {
                _numberOfBeams = value;
            }
        }

        ///<summary>
        ///padding
        ///</summary>
        public void setPad2(ushort pPad2)
        { 
            _pad2 = pPad2;
        }

        [XmlElement(Type= typeof(ushort), ElementName="pad2")]
        public ushort Pad2
        {
            get
            {
                return _pad2;
            }
            set
            {
                _pad2 = value;
            }
        }

        ///<summary>
        ///This field shall specify the system for a particular UA emitter.
        ///</summary>
        public void setAcousticEmitterSystem(AcousticEmitterSystem pAcousticEmitterSystem)
        { 
            _acousticEmitterSystem = pAcousticEmitterSystem;
        }

        ///<summary>
        ///This field shall specify the system for a particular UA emitter.
        ///</summary>
        public AcousticEmitterSystem getAcousticEmitterSystem()
        {
            return _acousticEmitterSystem;
        }

        ///<summary>
        ///This field shall specify the system for a particular UA emitter.
        ///</summary>
        [XmlElement(Type= typeof(AcousticEmitterSystem), ElementName="acousticEmitterSystem")]
        public AcousticEmitterSystem AcousticEmitterSystem
        {
            get
            {
                return _acousticEmitterSystem;
            }
            set
            {
                _acousticEmitterSystem = value;
            }
        }

        ///<summary>
        ///Represents the location wrt the entity
        ///</summary>
        public void setEmitterLocation(Vector3Float pEmitterLocation)
        { 
            _emitterLocation = pEmitterLocation;
        }

        ///<summary>
        ///Represents the location wrt the entity
        ///</summary>
        public Vector3Float getEmitterLocation()
        {
            return _emitterLocation;
        }

        ///<summary>
        ///Represents the location wrt the entity
        ///</summary>
        [XmlElement(Type= typeof(Vector3Float), ElementName="emitterLocation")]
        public Vector3Float EmitterLocation
        {
            get
            {
                return _emitterLocation;
            }
            set
            {
                _emitterLocation = value;
            }
        }

        ///<summary>
        ///For each beam in numberOfBeams, an emitter system. This is not right--the beam records need to be at the end of the PDU, rather than attached to each system.
        ///</summary>
        public void setBeamRecords(List<AcousticBeamData> pBeamRecords)
        {
            _beamRecords = pBeamRecords;
        }

        ///<summary>
        ///For each beam in numberOfBeams, an emitter system. This is not right--the beam records need to be at the end of the PDU, rather than attached to each system.
        ///</summary>
        public List<AcousticBeamData> getBeamRecords()
        {
            return _beamRecords;
        }

        ///<summary>
        ///For each beam in numberOfBeams, an emitter system. This is not right--the beam records need to be at the end of the PDU, rather than attached to each system.
        ///</summary>
        [XmlElement(ElementName = "beamRecordsList",Type = typeof(List<AcousticBeamData>))]
        public List<AcousticBeamData> BeamRecords
        {
            get
            {
                return _beamRecords;
            }
            set
            {
                _beamRecords = value;
            }
        }


        ///<summary>
        ///Marshal the data to the DataOutputStream.  Note: Length needs to be set before calling this method
        ///</summary>
        public void marshal(DataOutputStream dos)
        {
            try
            {
                dos.writeByte((byte)_emitterSystemDataLength);
                dos.writeByte((byte)_beamRecords.Count);
                dos.writeUshort((ushort)_pad2);
                _acousticEmitterSystem.marshal(dos);
                _emitterLocation.marshal(dos);

                for(int idx = 0; idx < _beamRecords.Count; idx++)
                {
                    AcousticBeamData aAcousticBeamData = (AcousticBeamData)_beamRecords[idx];
                    aAcousticBeamData.marshal(dos);
                } // end of list marshalling

            } // end try
            catch(Exception e)
            {
                Trace.WriteLine(e);
                Trace.Flush();
            }
        } // end of marshal method

        public void unmarshal(DataInputStream dis)
        {
            try
            {
                _emitterSystemDataLength = dis.readByte();
                _numberOfBeams = dis.readByte();
                _pad2 = dis.readUshort();
                _acousticEmitterSystem.unmarshal(dis);
                _emitterLocation.unmarshal(dis);
                for(int idx = 0; idx < _numberOfBeams; idx++)
                {
                    AcousticBeamData anX = new AcousticBeamData();
                    anX.unmarshal(dis);
                    _beamRecords.Add(anX);
                };

            } // end try
            catch(Exception e)
            {
                Trace.WriteLine(e);
                Trace.Flush();
            }
        } // end of unmarshal method

        ///<summary>
        ///This allows for a quick display of PDU data.  The current format is unacceptable and only used for debugging.
        ///This will be modified in the future to provide a better display.  Usage: 
        ///pdu.GetType().InvokeMember("reflection", System.Reflection.BindingFlags.InvokeMethod, null, pdu, new object[] { sb });
        ///where pdu is an object representing a single pdu and sb is a StringBuilder.
        ///Note: The supplied Utilities folder contains a method called 'DecodePDU' in the PDUProcessor Class that provides this functionality
        ///</summary>
        public void reflection(StringBuilder sb)
        {
            sb.Append("<AcousticEmitterSystemData>"  + System.Environment.NewLine);
            try
            {
                sb.Append("<emitterSystemDataLength type=\"byte\">" + _emitterSystemDataLength.ToString() + "</emitterSystemDataLength> " + System.Environment.NewLine);
                sb.Append("<beamRecords type=\"byte\">" + _beamRecords.Count.ToString() + "</beamRecords> " + System.Environment.NewLine);
                sb.Append("<pad2 type=\"ushort\">" + _pad2.ToString() + "</pad2> " + System.Environment.NewLine);
                sb.Append("<acousticEmitterSystem>"  + System.Environment.NewLine);
                _acousticEmitterSystem.reflection(sb);
                sb.Append("</acousticEmitterSystem>"  + System.Environment.NewLine);
                sb.Append("<emitterLocation>"  + System.Environment.NewLine);
                _emitterLocation.reflection(sb);
                sb.Append("</emitterLocation>"  + System.Environment.NewLine);

            for(int idx = 0; idx < _beamRecords.Count; idx++)
            {
                sb.Append("<beamRecords"+ idx.ToString() + " type=\"AcousticBeamData\">" + System.Environment.NewLine);
                AcousticBeamData aAcousticBeamData = (AcousticBeamData)_beamRecords[idx];
                aAcousticBeamData.reflection(sb);
                sb.Append("</beamRecords"+ idx.ToString() + ">" + System.Environment.NewLine);
            } // end of list marshalling

                sb.Append("</AcousticEmitterSystemData>"  + System.Environment.NewLine);
            } // end try
            catch(Exception e)
            {
                Trace.WriteLine(e);
                Trace.Flush();
            }
        } // end of reflection method

        public static bool operator !=(AcousticEmitterSystemData a, AcousticEmitterSystemData b)
        {
            return !(a == b);
        }

        public static bool operator ==(AcousticEmitterSystemData a, AcousticEmitterSystemData b)
        {
            if (System.Object.ReferenceEquals(a, b))
            {
                return true;
            }

            if (((object)a == null) || ((object)b == null))
            {
                return false;
            }

            return a.equals(b);
        }


        public override bool Equals(object obj)
        {
            return this == obj as AcousticEmitterSystemData;
        }


        /**
         * Compares for reference equality and value equality.
         */
        public bool equals(AcousticEmitterSystemData rhs)
        {
            bool ivarsEqual = true;

            if(rhs.GetType() != this.GetType())
                return false;


            if( ! (_emitterSystemDataLength == rhs._emitterSystemDataLength)) ivarsEqual = false;
            if( ! (_numberOfBeams == rhs._numberOfBeams)) ivarsEqual = false;
            if( ! (_pad2 == rhs._pad2)) ivarsEqual = false;
            if( ! (_acousticEmitterSystem.Equals( rhs._acousticEmitterSystem) )) ivarsEqual = false;
            if( ! (_emitterLocation.Equals( rhs._emitterLocation) )) ivarsEqual = false;

            if( ! (_beamRecords.Count == rhs._beamRecords.Count)) ivarsEqual = false;
            if(ivarsEqual)
            {
                for(int idx = 0; idx < _beamRecords.Count; idx++)
                {
                    if( ! ( _beamRecords[idx].Equals(rhs._beamRecords[idx]))) ivarsEqual = false;
                }
            }


            return ivarsEqual;
        }

        /**
         * HashCode Helper
         */
        private int GenerateHash(int hash)
        {
            hash = hash << 5 + hash;
            return(hash);
        }


        /**
         * Return Hash
         */
        public override int GetHashCode()
        {
            int result = 0;

            result = GenerateHash(result) ^ _emitterSystemDataLength.GetHashCode();
            result = GenerateHash(result) ^ _numberOfBeams.GetHashCode();
            result = GenerateHash(result) ^ _pad2.GetHashCode();
            result = GenerateHash(result) ^ _acousticEmitterSystem.GetHashCode();
            result = GenerateHash(result) ^ _emitterLocation.GetHashCode();

            if(_beamRecords.Count > 0)
            {
                for(int idx = 0; idx < _beamRecords.Count; idx++)
                {
                    result = GenerateHash(result) ^ _beamRecords[idx].GetHashCode();
                }
            }


            return result;
        }
    } // end of class
} // end of namespace

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License

This article, along with any associated source code and files, is licensed under The BSD License

About the Author

pesmith
Software Developer
United States United States
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