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Using OpenTK/OpenAL to Develop Cross Platform DIS VOIP Application

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15 Mar 2010BSD10 min read 44.8K   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
{

    /**
     * Section 5.2.40. Information about a geometry, a state associated with a geometry, a bounding volume, or an associated entity ID. NOTE: this class requires hand coding.
     *
     * 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]
    public partial class Environment : Object
    {
        /** Record type */
        protected uint  _environmentType;

        /** length, in bits */
        protected byte  _length;

        /** Identify the sequentially numbered record index */
        protected byte  _index;

        /** padding */
        protected byte  _padding1;

        /** Geometry or state record */
        protected byte  _geometry;

        /** padding to bring the total size up to a 64 bit boundry */
        protected byte  _padding2;


        /** Constructor */
        ///<summary>
        ///Section 5.2.40. Information about a geometry, a state associated with a geometry, a bounding volume, or an associated entity ID. NOTE: this class requires hand coding.
        ///</summary>
        public Environment()
        {
        }

        public int getMarshalledSize()
        {
            int marshalSize = 0; 

            marshalSize = marshalSize + 4;  // _environmentType
            marshalSize = marshalSize + 1;  // _length
            marshalSize = marshalSize + 1;  // _index
            marshalSize = marshalSize + 1;  // _padding1
            marshalSize = marshalSize + 1;  // _geometry
            marshalSize = marshalSize + 1;  // _padding2

            return marshalSize;
        }


        ///<summary>
        ///Record type
        ///</summary>
        public void setEnvironmentType(uint pEnvironmentType)
        { 
            _environmentType = pEnvironmentType;
        }

        [XmlElement(Type= typeof(uint), ElementName="environmentType")]
        public uint EnvironmentType
        {
            get
            {
                return _environmentType;
            }
            set
            {
                _environmentType = value;
            }
        }

        ///<summary>
        ///length, in bits
        ///</summary>
        public void setLength(byte pLength)
        { 
            _length = pLength;
        }

        [XmlElement(Type= typeof(byte), ElementName="length")]
        public byte Length
        {
            get
            {
                return _length;
            }
            set
            {
                _length = value;
            }
        }

        ///<summary>
        ///Identify the sequentially numbered record index
        ///</summary>
        public void setIndex(byte pIndex)
        { 
            _index = pIndex;
        }

        [XmlElement(Type= typeof(byte), ElementName="index")]
        public byte Index
        {
            get
            {
                return _index;
            }
            set
            {
                _index = value;
            }
        }

        ///<summary>
        ///padding
        ///</summary>
        public void setPadding1(byte pPadding1)
        { 
            _padding1 = pPadding1;
        }

        [XmlElement(Type= typeof(byte), ElementName="padding1")]
        public byte Padding1
        {
            get
            {
                return _padding1;
            }
            set
            {
                _padding1 = value;
            }
        }

        ///<summary>
        ///Geometry or state record
        ///</summary>
        public void setGeometry(byte pGeometry)
        { 
            _geometry = pGeometry;
        }

        [XmlElement(Type= typeof(byte), ElementName="geometry")]
        public byte Geometry
        {
            get
            {
                return _geometry;
            }
            set
            {
                _geometry = value;
            }
        }

        ///<summary>
        ///padding to bring the total size up to a 64 bit boundry
        ///</summary>
        public void setPadding2(byte pPadding2)
        { 
            _padding2 = pPadding2;
        }

        [XmlElement(Type= typeof(byte), ElementName="padding2")]
        public byte Padding2
        {
            get
            {
                return _padding2;
            }
            set
            {
                _padding2 = 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.writeUint((uint)_environmentType);
                dos.writeByte((byte)_length);
                dos.writeByte((byte)_index);
                dos.writeByte((byte)_padding1);
                dos.writeByte((byte)_geometry);
                dos.writeByte((byte)_padding2);
            } // end try
            catch(Exception e)
            {
                Trace.WriteLine(e);
                Trace.Flush();
            }
        } // end of marshal method

        public void unmarshal(DataInputStream dis)
        {
            try
            {
                _environmentType = dis.readUint();
                _length = dis.readByte();
                _index = dis.readByte();
                _padding1 = dis.readByte();
                _geometry = dis.readByte();
                _padding2 = dis.readByte();
            } // 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("<Environment>"  + System.Environment.NewLine);
            try
            {
                sb.Append("<environmentType type=\"uint\">" + _environmentType.ToString() + "</environmentType> " + System.Environment.NewLine);
                sb.Append("<length type=\"byte\">" + _length.ToString() + "</length> " + System.Environment.NewLine);
                sb.Append("<index type=\"byte\">" + _index.ToString() + "</index> " + System.Environment.NewLine);
                sb.Append("<padding1 type=\"byte\">" + _padding1.ToString() + "</padding1> " + System.Environment.NewLine);
                sb.Append("<geometry type=\"byte\">" + _geometry.ToString() + "</geometry> " + System.Environment.NewLine);
                sb.Append("<padding2 type=\"byte\">" + _padding2.ToString() + "</padding2> " + System.Environment.NewLine);
                sb.Append("</Environment>"  + System.Environment.NewLine);
            } // end try
            catch(Exception e)
            {
                Trace.WriteLine(e);
                Trace.Flush();
            }
        } // end of reflection method

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

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


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

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


            if( ! (_environmentType == rhs._environmentType)) ivarsEqual = false;
            if( ! (_length == rhs._length)) ivarsEqual = false;
            if( ! (_index == rhs._index)) ivarsEqual = false;
            if( ! (_padding1 == rhs._padding1)) ivarsEqual = false;
            if( ! (_geometry == rhs._geometry)) ivarsEqual = false;
            if( ! (_padding2 == rhs._padding2)) 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) ^ _environmentType.GetHashCode();
            result = GenerateHash(result) ^ _length.GetHashCode();
            result = GenerateHash(result) ^ _index.GetHashCode();
            result = GenerateHash(result) ^ _padding1.GetHashCode();
            result = GenerateHash(result) ^ _geometry.GetHashCode();
            result = GenerateHash(result) ^ _padding2.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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