Source/System/FileIO/OSB/OSGOSBGeometryHelper.h

   1 /*---------------------------------------------------------------------------*\
   2  *                                OpenSG                                     *
   3  *                                                                           *
   4  *                                                                           *
   5  *                   Copyright (C) 2007 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 _OSGOSBGEOMETRYHELPER_H_
  40 #define _OSGOSBGEOMETRYHELPER_H_
  41 #ifdef __sgi
  42 #pragma once
  43 #endif
  44
  45 #include "OSGConfig.h"
  46 #include "OSGFileIODef.h"
  47
  48 #include "OSGOSBElementBase.h"
  49 #include "OSGGeometry.h"
  50
  51 #include "OSGNFIOBitPacker.h"
  52 #include "OSGNFIOQuantizer.h"
  53 #include "OSGOSBGeometryElement.h"
  54
  55 #include <vector>
  56
  57 OSG_BEGIN_NAMESPACE
  58
  59 /*! \ingroup GrpFileIOOSB
  60     \nohierarchy
  61  */
  62
  63 class OSG_FILEIO_DLLMAPPING OSBGeometryHelper
  64 {
  65     /*==========================  PUBLIC  =================================*/
  66   public:
  67     /*---------------------------------------------------------------------*/
  68     /*! \name Types                                                        */
  69     /*! \{                                                                 */
  70
  71     typedef OSBElementBase::BinaryReadHandler  BinaryReadHandler;
  72     typedef OSBElementBase::BinaryWriteHandler BinaryWriteHandler;
  73
  74     /*! \}                                                                 */
  75     /*---------------------------------------------------------------------*/
  76     /*! \name Reading Helper Functions                                     */
  77     /*! \{                                                                 */
  78
  79     void readPackedIntegralPropertyHeader(BinaryReadHandler *rh,
  80                                           UInt32            &maxValue,
  81                                           UInt32            &propSize,
  82                                           UInt32            &byteSize  );
  83
  84     template <class GeoPropPtrTypeT>
  85     void readPackedIntegralProperty   (      BinaryReadHandler *rh,
  86                                        const GeoPropPtrTypeT    prop,
  87                                        const UInt32             maxValue,
  88                                        const UInt32             propSize,
  89                                        const UInt32             byteSize );
  90
  91     void readQuantizedVectorPropertyHeader(BinaryReadHandler *rh,
  92                                            UInt8             &resolution,
  93                                            Real32            &minValue,
  94                                            Real32            &maxValue,
  95                                            UInt32            &propSize   );
  96
  97     template <class GeoPropPtrTypeT>
  98     void readQuantizedVectorProperty(      BinaryReadHandler *rh,
  99                                      const GeoPropPtrTypeT    prop,
 100                                      const UInt32             fieldSize,
 101                                      const UInt8              resolution,
 102                                      const Real32             minValue,
 103                                      const Real32             maxValue,
 104                                      const UInt32             propSize   );
 105
 106     /*! \}                                                                 */
 107     /*---------------------------------------------------------------------*/
 108     /*! \name Conversion Helper Functions                                  */
 109     /*! \{                                                                 */
 110
 111     template <class OutIndexPtrTypeT, class InIndexPtrTypeT>
 112     void splitMultiIndex(const std::vector<UInt16>           &indexMapping,
 113                          const InIndexPtrTypeT                inIndex,
 114                                Geometry                      * const geo  );
 115
 116     /*! \}                                                                 */
 117     /*---------------------------------------------------------------------*/
 118 };
 119
 120 OSG_END_NAMESPACE
 121
 122 #include "OSGOSBGeometryHelper.inl"
 123
 124 #endif /* _OSGOSBGEOMETRYHELPER_H_ */