Source/System/Cluster/Window/SortFirst/OSGTileGeometryLoad.h

   1 /*---------------------------------------------------------------------------*\
   2  *                                OpenSG                                     *
   3  *                                                                           *
   4  *                                                                           *
   5  *             Copyright (C) 2000-2002 by the OpenSG Forum                   *
   6  *                                                                           *
   7  *                            www.opensg.org                                 *
   8  *                                                                           *
   9  *   contact: dirk@opensg.org, gerrit.voss@vossg.org, jbehr@zgdv.de          *
  10  *                                                                           *
  11 \*---------------------------------------------------------------------------*/
  12 /*---------------------------------------------------------------------------*\
  13  *                                License                                    *
  14  *                                                                           *
  15  * This library is free software; you can redistribute it and/or modify it   *
  16  * under the terms of the GNU Library General Public License as published    *
  17  * by the Free Software Foundation, version 2.                               *
  18  *                                                                           *
  19  * This library is distributed in the hope that it will be useful, but       *
  20  * WITHOUT ANY WARRANTY; without even the implied warranty of                *
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         *
  22  * Library General Public License for more details.                          *
  23  *                                                                           *
  24  * You should have received a copy of the GNU Library General Public         *
  25  * License along with this library; if not, write to the Free Software       *
  26  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                 *
  27  *                                                                           *
  28 \*---------------------------------------------------------------------------*/
  29 /*---------------------------------------------------------------------------*\
  30  *                                Changes                                    *
  31  *                                                                           *
  32  *                                                                           *
  33  *                                                                           *
  34  *                                                                           *
  35  *                                                                           *
  36  *                                                                           *
  37 \*---------------------------------------------------------------------------*/
  38
  39 #ifndef _OSG_TILE_GEOMETRY_LOAD_H_
  40 #define _OSG_TILE_GEOMETRY_LOAD_H_
  41 #ifdef __sgi
  42 #pragma once
  43 #endif
  44
  45 #include "OSGClusterDef.h"
  46 #include "OSGGeometry.h"
  47 #include "OSGCamera.h"
  48 #include "OSGViewport.h"
  49
  50 #include <vector>
  51
  52 OSG_BEGIN_NAMESPACE
  53
  54 #define FACE_DISTRIBUTION_SAMPLING_COUNT 8
  55
  56 /*! \ingroup GrpClusterWindowBalancer
  57     \ingroup GrpLibOSGCluster
  58     \includebasedoc
  59  */
  60
  61 class OSG_CLUSTER_DLLMAPPING TileGeometryLoad
  62 {
  63     /*==========================  PUBLIC  =================================*/
  64
  65   public:
  66
  67     /*---------------------------------------------------------------------*/
  68     /*! \name                   Constructors                               */
  69     /*! \{                                                                 */
  70
  71     TileGeometryLoad(UInt32 nodeId,bool useFaceDistribution=false);
  72     TileGeometryLoad(const TileGeometryLoad &source);
  73
  74     /*! \}                                                                 */
  75     /*---------------------------------------------------------------------*/
  76     /*! \name                   Destructor                                 */
  77     /*! \{                                                                 */
  78
  79     virtual ~TileGeometryLoad(void);
  80
  81     /*! \}                                                                 */
  82     /*---------------------------------------------------------------------*/
  83     /*! \name                  load calculation                            */
  84     /*! \{                                                                 */
  85
  86     void updateView        ( Matrix &viewing,
  87                              Matrix &projection,
  88                              Real32 near,
  89                              UInt32 width,
  90                              UInt32 height                );
  91     void updateGeometry    (                              );
  92     bool checkRegion       ( Int32 min[2],
  93                              Int32 max[2]                 );
  94     bool isVisible         (                              ) const;
  95
  96     /*! \}                                                                 */
  97     /*---------------------------------------------------------------------*/
  98     /*! \name                      Set                                     */
  99     /*! \{                                                                 */
 100
 101     void             setValid(bool s);
 102
 103     /*! \}                                                                 */
 104     /*---------------------------------------------------------------------*/
 105     /*! \name                      Get                                     */
 106     /*! \{                                                                 */
 107
 108     Node *            getNode() const;
 109     const Int32 *     getMin();
 110     const Int32 *     getMax();
 111     UInt32            getFaces();
 112     Real32            getVisibleFraction( const Int32 wmin[2],
 113                                           const Int32 wmax[2],
 114                                                 Int32 viswmin[2],
 115                                                 Int32 viswmax[2] );
 116     bool              getVisibleArea    ( const Int32 wmin[2],
 117                                           const Int32 wmax[2],
 118                                                 Int32 viswmin[2],
 119                                                 Int32 viswmax[2] );
 120
 121     bool              isInvalid(void);
 122
 123     /*! \}                                                                 */
 124     /*---------------------------------------------------------------------*/
 125     /*! \name                   your_operators                             */
 126     /*! \{                                                                 */
 127
 128     /*! \}                                                                 */
 129     /*---------------------------------------------------------------------*/
 130     /*! \name                    Assignment                                */
 131     /*! \{                                                                 */
 132
 133     TileGeometryLoad& operator = (const TileGeometryLoad &source);
 134
 135     /*! \}                                                                 */
 136     /*---------------------------------------------------------------------*/
 137     /*! \name                    Comparison                                */
 138     /*! \{                                                                 */
 139
 140     bool operator < (const TileGeometryLoad &other) const;
 141     //bool operator == (const TileGeometryLoad &other) const;
 142     //bool operator != (const TileGeometryLoad &other) const;
 143
 144     /*! \}                                                                 */
 145     /*---------------------------------------------------------------------*/
 146     /*! \name                        Dump                                  */
 147     /*! \{                                                                 */
 148
 149     void dump(void);
 150
 151     /*! \}                                                                 */
 152     /*=========================  PROTECTED  ===============================*/
 153
 154   protected:
 155
 156     /*---------------------------------------------------------------------*/
 157     /*! \name                     utilities                                */
 158     /*! \{                                                                 */
 159
 160     Real32 getFaceDistribution(UInt32 dir,Real32 cut);
 161
 162     /*! \}                                                                 */
 163
 164     /*---------------------------------------------------------------------*/
 165     /*! \name                        Members                               */
 166     /*! \{                                                                 */
 167
 168     UInt32                             _nodeId;
 169     Geometry                          *_geometry;
 170     UInt32                             _faces;
 171     Int32                              _min[2];
 172     Int32                              _max[2];
 173     std::vector<std::vector<Real32> >  _faceDistribution;
 174     UInt32                             _faceDistDirX;
 175     UInt32                             _faceDistDirY;
 176     bool                               _visible;
 177     bool                               _useFaceDistribution;
 178     Real32                             _areaSize;
 179     bool                               _valid;
 180
 181     /*! \}                                                                 */
 182
 183     /*---------------------------------------------------------------------*/
 184     /*! \name                  static elements                             */
 185     /*! \{                                                                 */
 186
 187     static std::vector<Plane>    _directions;
 188
 189     /*! \}                                                                 */
 190
 191     /*==========================  PRIVATE  ================================*/
 192
 193   private:
 194 };
 195
 196 OSG_END_NAMESPACE
 197
 198 #include "OSGTileGeometryLoad.inl"
 199
 200 #endif /* OSG_TILE_GEOMETRY_LOAD_H */