OpenMesh
OpenMesh/Apps/Unsupported/Streaming/Server/VDPMServerSession.hh
00001 /*===========================================================================*\
00002  *                                                                           *
00003  *                               OpenMesh                                    *
00004  *      Copyright (C) 2001-2011 by Computer Graphics Group, RWTH Aachen      *
00005  *                           www.openmesh.org                                *
00006  *                                                                           *
00007  *---------------------------------------------------------------------------* 
00008  *  This file is part of OpenMesh.                                           *
00009  *                                                                           *
00010  *  OpenMesh is free software: you can redistribute it and/or modify         * 
00011  *  it under the terms of the GNU Lesser General Public License as           *
00012  *  published by the Free Software Foundation, either version 3 of           *
00013  *  the License, or (at your option) any later version with the              *
00014  *  following exceptions:                                                    *
00015  *                                                                           *
00016  *  If other files instantiate templates or use macros                       *
00017  *  or inline functions from this file, or you compile this file and         *
00018  *  link it with other files to produce an executable, this file does        *
00019  *  not by itself cause the resulting executable to be covered by the        *
00020  *  GNU Lesser General Public License. This exception does not however       *
00021  *  invalidate any other reasons why the executable file might be            *
00022  *  covered by the GNU Lesser General Public License.                        *
00023  *                                                                           *
00024  *  OpenMesh is distributed in the hope that it will be useful,              *
00025  *  but WITHOUT ANY WARRANTY; without even the implied warranty of           *
00026  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            *
00027  *  GNU Lesser General Public License for more details.                      *
00028  *                                                                           *
00029  *  You should have received a copy of the GNU LesserGeneral Public          *
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00032  *                                                                           *
00033 \*===========================================================================*/ 
00034 
00035 /*===========================================================================*\
00036  *                                                                           *             
00037  *   $Revision: 362 $                                                         *
00038  *   $Date: 2011-01-26 10:21:12 +0100 (Mi, 26 Jan 2011) $                   *
00039  *                                                                           *
00040 \*===========================================================================*/
00041 
00042 #ifndef OPENMESH_APP_VDPMSTREAMING_SERVER_VDPMSERVERSESSION_HH
00043 #define OPENMESH_APP_VDPMSTREAMING_SERVER_VDPMSERVERSESSION_HH
00044 
00045 #include <qsocket.h>
00046 #include <qthread.h>
00047 #include <qdatastream.h>
00048 #include <qtimer.h>
00049 #include <iostream>
00050 #include <OpenMesh/Core/Geometry/VectorT.hh>
00051 #include <OpenMesh/Core/Geometry/Plane3d.hh>
00052 #include <OpenMesh/Tools/Utils/Timer.hh>
00053 #include <OpenMesh/Tools/VDPM/StreamingDef.hh>
00054 #include <OpenMesh/Tools/VDPM/VHierarchyNodeIndex.hh>
00055 #include <OpenMesh/Tools/VDPM/ViewingParameters.hh>
00056 #include <OpenMesh/Tools/VDPM/VHierarchy.hh>
00057 #include <OpenMesh/Tools/VDPM/VFront.hh>
00058 #include <OpenMesh/Apps/VDProgMesh/Streaming/Server/ServerSideVDPM.hh>
00059 #include <OpenMesh/Tools/VDPM/VHierarchyWindow.hh>
00060 
00061 
00062 using OpenMesh::VDPM::VDPMStreamingPhase;
00063 using OpenMesh::VDPM::kBaseMesh;
00064 using OpenMesh::VDPM::kVSplits;
00065 
00066 using OpenMesh::VDPM::VHierarchyWindow;
00067 using OpenMesh::VDPM::VHierarchyNodeIndex;
00068 using OpenMesh::VDPM::VHierarchyNodeHandle;
00069 using OpenMesh::VDPM::ViewingParameters;
00070 
00071 using OpenMesh::VDPM::set_debug_print;
00072 
00073 class VDPMServerSession : public QSocket, public QThread
00074 {
00075 
00076   Q_OBJECT
00077 
00078 public:
00079 
00080   VDPMServerSession(int sock, QObject *parent=0, const char *name=0)
00081     : QSocket(parent, name)
00082   {
00083     set_debug_print(true);
00084 
00085     streaming_phase_       = kBaseMesh;
00086     transmission_complete_ = false;
00087 
00088     connect(this, SIGNAL(connected()), SLOT(socketConnected()));
00089     connect(this, SIGNAL(readyRead()), SLOT(socketReadyRead()));
00090     //connect(this, SIGNAL(connectionClosed()), SLOT(deleteLater()));
00091     connect(this, SIGNAL(connectionClosed()), SLOT(delayedCloseFinished()));
00092     setSocket(sock);
00093 
00094 
00095     qStatisticsTimer_ = new QTimer(this);
00096     connect(qStatisticsTimer_, SIGNAL(timeout()), this, SLOT(print_statistics()));
00097 
00098     mem_file = fopen("mem.txt", "w");
00099     
00100     start();
00101   }
00102 
00103   ~VDPMServerSession()
00104   {
00105     fclose(mem_file);
00106   }
00107 
00108   void run()
00109   {
00110     while (true)
00111     {
00112       sleep(1);
00113     }
00114   }
00115 
00116 private:  
00117 
00118   VDPMStreamingPhase  streaming_phase_;
00119   bool                transmission_complete_;
00120 
00121 private:
00122 
00123   void sendBaseMeshToClient();
00124   void send_vsplit_packets();
00125   void readBaseMeshRequestFromClient();
00126   void readViewingParametersFromClient();
00127 
00128   void PrintOutVFront();
00129 
00130 private slots:
00131 
00132   void socketConnected()
00133   {
00134     std::cout << "socket is connected" << std::endl;
00135   }
00136 
00137   void socketReadyRead()
00138   {
00139     if (streaming_phase_ == kBaseMesh)
00140     {
00141       readBaseMeshRequestFromClient();      
00142     }
00143     else if (streaming_phase_ == kVSplits)
00144     {
00145       readViewingParametersFromClient();
00146     }
00147   }
00148 
00149   void print_statistics()
00150   {
00151     //std::cout << memory_requirements(true) << " " << memory_requirements(false) << std::endl;
00152   }
00153 
00154 private:  
00155   unsigned short                tree_id_bits_;    // obsolete
00156   ServerSideVDPM*               vdpm_;
00157   VHierarchy*                   vhierarchy_;
00158   VHierarchyWindow              vhwindow_;
00159   ViewingParameters             viewing_parameters_;
00160   float                         kappa_square_;
00161   VHierarchyNodeHandleContainer vsplits_;
00162 
00163 private:
00164   bool outside_view_frustum(const OpenMesh::Vec3f &pos, float radius);
00165   bool oriented_away(float sin_square, float distance_square, float product_value);
00166   bool screen_space_error(float mue_square, float sigma_square, float distance_square, float product_value);
00167 
00168   void adaptive_refinement();
00169   void sequential_refinement();
00170   bool qrefine(VHierarchyNodeHandle _node_handle);
00171   void force_vsplit(VHierarchyNodeHandle node_handle);
00172   void vsplit(VHierarchyNodeHandle _node_handle);
00173   VHierarchyNodeHandle active_ancestor_handle(VHierarchyNodeIndex &node_index);
00174   void stream_vsplits();
00175 
00176 public:
00177   bool set_vdpm(const char _vdpm_name[256]);
00178   unsigned int  memory_requirements_using_window(bool _estimate);
00179   unsigned int  memory_requirements_using_vfront();
00180 
00181   // for example
00182 private:
00183   QTimer  *qStatisticsTimer_;
00184   FILE    *mem_file;
00185 };
00186 
00187 #endif //OPENMESH_APP_VDPMSTREAMING_SERVER_VDPMSERVERSESSION_HH defined