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Using OpenTK/OpenAL to Develop Cross Platform DIS VOIP Application

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15 Mar 2010BSD10 min read 44.7K   1.7K   24  
Application allows voice communications (VOIP) utilizing the Distributed Interactive Simulation protocol (IEEE 1278.1)
// 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 UA PDU
     *
     * 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(AcousticBeamFundamentalParameter))]
    public partial class AcousticBeamData : Object
    {
        /** beam data length */
        protected ushort  _beamDataLength;

        /** beamIDNumber */
        protected byte  _beamIDNumber;

        /** padding */
        protected ushort  _pad2;

        /** fundamental data parameters */
        protected AcousticBeamFundamentalParameter  _fundamentalDataParameters = new AcousticBeamFundamentalParameter(); 


        /** Constructor */
        ///<summary>
        ///Used in UA PDU
        ///</summary>
        public AcousticBeamData()
        {
        }

        public int getMarshalledSize()
        {
            int marshalSize = 0; 

            marshalSize = marshalSize + 2;  // _beamDataLength
            marshalSize = marshalSize + 1;  // _beamIDNumber
            marshalSize = marshalSize + 2;  // _pad2
            marshalSize = marshalSize + _fundamentalDataParameters.getMarshalledSize();  // _fundamentalDataParameters

            return marshalSize;
        }


        ///<summary>
        ///beam data length
        ///</summary>
        public void setBeamDataLength(ushort pBeamDataLength)
        { 
            _beamDataLength = pBeamDataLength;
        }

        [XmlElement(Type= typeof(ushort), ElementName="beamDataLength")]
        public ushort BeamDataLength
        {
            get
            {
                return _beamDataLength;
            }
            set
            {
                _beamDataLength = value;
            }
        }

        ///<summary>
        ///beamIDNumber
        ///</summary>
        public void setBeamIDNumber(byte pBeamIDNumber)
        { 
            _beamIDNumber = pBeamIDNumber;
        }

        [XmlElement(Type= typeof(byte), ElementName="beamIDNumber")]
        public byte BeamIDNumber
        {
            get
            {
                return _beamIDNumber;
            }
            set
            {
                _beamIDNumber = 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>
        ///fundamental data parameters
        ///</summary>
        public void setFundamentalDataParameters(AcousticBeamFundamentalParameter pFundamentalDataParameters)
        { 
            _fundamentalDataParameters = pFundamentalDataParameters;
        }

        ///<summary>
        ///fundamental data parameters
        ///</summary>
        public AcousticBeamFundamentalParameter getFundamentalDataParameters()
        {
            return _fundamentalDataParameters;
        }

        ///<summary>
        ///fundamental data parameters
        ///</summary>
        [XmlElement(Type= typeof(AcousticBeamFundamentalParameter), ElementName="fundamentalDataParameters")]
        public AcousticBeamFundamentalParameter FundamentalDataParameters
        {
            get
            {
                return _fundamentalDataParameters;
            }
            set
            {
                _fundamentalDataParameters = 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.writeUshort((ushort)_beamDataLength);
                dos.writeByte((byte)_beamIDNumber);
                dos.writeUshort((ushort)_pad2);
                _fundamentalDataParameters.marshal(dos);
            } // end try
            catch(Exception e)
            {
                Trace.WriteLine(e);
                Trace.Flush();
            }
        } // end of marshal method

        public void unmarshal(DataInputStream dis)
        {
            try
            {
                _beamDataLength = dis.readUshort();
                _beamIDNumber = dis.readByte();
                _pad2 = dis.readUshort();
                _fundamentalDataParameters.unmarshal(dis);
            } // 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("<AcousticBeamData>"  + System.Environment.NewLine);
            try
            {
                sb.Append("<beamDataLength type=\"ushort\">" + _beamDataLength.ToString() + "</beamDataLength> " + System.Environment.NewLine);
                sb.Append("<beamIDNumber type=\"byte\">" + _beamIDNumber.ToString() + "</beamIDNumber> " + System.Environment.NewLine);
                sb.Append("<pad2 type=\"ushort\">" + _pad2.ToString() + "</pad2> " + System.Environment.NewLine);
                sb.Append("<fundamentalDataParameters>"  + System.Environment.NewLine);
                _fundamentalDataParameters.reflection(sb);
                sb.Append("</fundamentalDataParameters>"  + System.Environment.NewLine);
                sb.Append("</AcousticBeamData>"  + System.Environment.NewLine);
            } // end try
            catch(Exception e)
            {
                Trace.WriteLine(e);
                Trace.Flush();
            }
        } // end of reflection method

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

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


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

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


            if( ! (_beamDataLength == rhs._beamDataLength)) ivarsEqual = false;
            if( ! (_beamIDNumber == rhs._beamIDNumber)) ivarsEqual = false;
            if( ! (_pad2 == rhs._pad2)) ivarsEqual = false;
            if( ! (_fundamentalDataParameters.Equals( rhs._fundamentalDataParameters) )) 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) ^ _beamDataLength.GetHashCode();
            result = GenerateHash(result) ^ _beamIDNumber.GetHashCode();
            result = GenerateHash(result) ^ _pad2.GetHashCode();
            result = GenerateHash(result) ^ _fundamentalDataParameters.GetHashCode();

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

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


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