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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
{

    /**
     * 5.2.44: Grid data record, representation 0
     *
     * 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(OneByteChunk))]
    public partial class GridAxisRecordRepresentation0 : GridAxisRecord
    {
        /** number of bytes of environmental state data */
        protected ushort  _numberOfBytes;

        /** variable length list of data parameters ^^^this is wrong--need padding as well */
        protected byte[] _dataValues; 

        /** Constructor */
        ///<summary>
        ///5.2.44: Grid data record, representation 0
        ///</summary>
        public GridAxisRecordRepresentation0()
        {
        }

        new public int getMarshalledSize()
        {
            int marshalSize = 0; 

            marshalSize = base.getMarshalledSize();
            marshalSize = marshalSize + 2;  // _numberOfBytes
            marshalSize = marshalSize + _dataValues.Length;

            return marshalSize;
        }


        /// <summary>
        /// Note that setting this value will not change the marshalled value. The list whose length this describes is used for that purpose.
        /// The getnumberOfBytes 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 setNumberOfBytes(ushort pNumberOfBytes)
        {
            _numberOfBytes = pNumberOfBytes;
        }

        /// <summary>
        /// Note that setting this value will not change the marshalled value. The list whose length this describes is used for that purpose.
        /// The getnumberOfBytes 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(ushort), ElementName="numberOfBytes")]
        public ushort NumberOfBytes
        {
            get
            {
                return _numberOfBytes;
            }
            set
            {
                _numberOfBytes = value;
            }
        }

        ///<summary>
        ///variable length list of data parameters ^^^this is wrong--need padding as well
        ///</summary>
        public void setDataValues(byte[] pDataValues)
        {
            _dataValues = pDataValues;
        }

        ///<summary>
        ///variable length list of data parameters ^^^this is wrong--need padding as well
        ///</summary>
        public byte[] getDataValues()
        {
            return _dataValues;
        }

        ///<summary>
        ///variable length list of data parameters ^^^this is wrong--need padding as well
        ///</summary>
        [XmlElement(ElementName = "dataValuesList", DataType = "hexBinary")]
        public byte[] DataValues
        {
            get
            {
                return _dataValues;
            }
            set
            {
                _dataValues = value;
            }
        }


        ///<summary>
        ///Marshal the data to the DataOutputStream.  Note: Length needs to be set before calling this method
        ///</summary>
        new public void marshal(DataOutputStream dos)
        {
            base.marshal(dos);
            try
            {
                dos.writeUshort((ushort)_dataValues.Length);
                dos.writeByte (_dataValues);
            } // end try
            catch(Exception e)
            {
                Trace.WriteLine(e);
                Trace.Flush();
            }
        } // end of marshal method

        new public void unmarshal(DataInputStream dis)
        {
            base.unmarshal(dis);

            try
            {
                _numberOfBytes = dis.readUshort();
                _dataValues = dis.readByteArray(_numberOfBytes);
            } // 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>
        new public void reflection(StringBuilder sb)
        {
            sb.Append("<GridAxisRecordRepresentation0>"  + System.Environment.NewLine);
            base.reflection(sb);
            try
            {
                sb.Append("<dataValues type=\"ushort\">" + _dataValues.Length.ToString() + "</dataValues> " + System.Environment.NewLine);

            sb.Append("<dataValues type=\"byte[]\">" + System.Environment.NewLine);
            foreach (byte b in _dataValues) sb.Append(b.ToString("X2"));
                sb.Append("</dataValues>" + System.Environment.NewLine);
                sb.Append("</GridAxisRecordRepresentation0>"  + System.Environment.NewLine);
            } // end try
            catch(Exception e)
            {
                Trace.WriteLine(e);
                Trace.Flush();
            }
        } // end of reflection method

        public static bool operator !=(GridAxisRecordRepresentation0 a, GridAxisRecordRepresentation0 b)
        {
            return !(a == b);
        }

        public static bool operator ==(GridAxisRecordRepresentation0 a, GridAxisRecordRepresentation0 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 GridAxisRecordRepresentation0;
        }


        /**
         * Compares for reference equality and value equality.
         */
        public bool equals(GridAxisRecordRepresentation0 rhs)
        {
            bool ivarsEqual = true;

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

            ivarsEqual = base.Equals(rhs);

            if( ! (_numberOfBytes == rhs._numberOfBytes)) ivarsEqual = false;
            if( ! ( _dataValues.Equals(rhs._dataValues))) 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) ^ base.GetHashCode();

            result = GenerateHash(result) ^ _numberOfBytes.GetHashCode();

            if(_dataValues.Length > 0)
            {
                for(int idx = 0; idx < _dataValues.Length; idx++)
                {
                    result = GenerateHash(result) ^ _dataValues[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

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pesmith
Software Developer
United States United States
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