Source/System/NodeCores/Drawables/Geometry/Util/OSGIntersectKDTreeNodeFields.cpp

   1 /*---------------------------------------------------------------------------*\
   2  *                                OpenSG                                     *
   3  *                                                                           *
   4  *                                                                           *
   5  *                Copyright (C) 2011 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 #include "OSGIntersectKDTreeNodeFields.h"
  31
  32 #include "OSGExportDefines.h"
  33 #include "OSGFieldContainer.h"
  34 #include "OSGMField.ins"
  35 #include "OSGSField.ins"
  36
  37 OSG_BEGIN_NAMESPACE
  38
  39 DataType FieldTraits<IntersectKDTreeNode>::_type("IntersectKDTreeNode", NULL);
  40
  41 OSG_FIELD_DLLEXPORT_DEF1(SField, IntersectKDTreeNode)
  42 OSG_FIELD_DLLEXPORT_DEF1(MField, IntersectKDTreeNode)
  43
  44 OSG_FIELDTRAITS_GETTYPE(IntersectKDTreeNode)
  45
  46 /* static */ const Char8 *
  47 FieldTraits<IntersectKDTreeNode>::getSName(void)
  48 {
  49     return "SFIntersectKDTreeNode";
  50 }
  51
  52 /* static */ const Char8 *
  53 FieldTraits<IntersectKDTreeNode>::getMName(void)
  54 {
  55     return "MFIntersectKDTreeNode";
  56 }
  57
  58 /* static */
  59 SizeT FieldTraits<IntersectKDTreeNode>::getBinSize(const IntersectKDTreeNode &)
  60 {
  61     return 2 * sizeof(UInt32);
  62 }
  63
  64 /* static */
  65 SizeT FieldTraits<IntersectKDTreeNode>::getBinSize(
  66     const IntersectKDTreeNode *pObjectStore,
  67           SizeT                uiNumObjects)
  68 {
  69     return uiNumObjects * 2 * sizeof(UInt32);
  70 }
  71
  72 /* static */ void
  73 FieldTraits<IntersectKDTreeNode>::copyToBin(
  74           BinaryDataHandler   &pMem,
  75     const IntersectKDTreeNode &oObject)
  76 {
  77     if(oObject.isLeaf())
  78     {
  79         UInt32 count = oObject.getTriCount() << 2;
  80         count |= IntersectKDTreeNode::Leaf;
  81
  82         UInt32 triOffset = oObject.getTriOffset();
  83
  84         pMem.putValue(count    );
  85         pMem.putValue(triOffset);
  86     }
  87     else
  88     {
  89         UInt32 childOffset = oObject.getChildOffset() << 2;
  90         childOffset |= oObject.getSplitAxis();
  91
  92         Real32 split = oObject.getSplit();
  93
  94         pMem.putValue(childOffset);
  95         pMem.putValue(split      );
  96     }
  97 }
  98
  99 /* static */ void
 100 FieldTraits<IntersectKDTreeNode>::copyToBin(
 101           BinaryDataHandler   &pMem,
 102     const IntersectKDTreeNode *pObjectStore,
 103           SizeT                uiNumObjects)
 104 {
 105     for(SizeT i = 0; i < uiNumObjects; ++i)
 106     {
 107         copyToBin(pMem, pObjectStore[i]);
 108     }
 109 }
 110
 111 /* static */ void
 112 FieldTraits<IntersectKDTreeNode>::copyFromBin(
 113     BinaryDataHandler   &pMem,
 114     IntersectKDTreeNode &oObject)
 115 {
 116     UInt32 count;
 117
 118     pMem.getValue(count);
 119
 120     UInt32 flags = count & 0x03;
 121     count >>= 2;
 122
 123     if(flags == IntersectKDTreeNode::Leaf)
 124     {
 125         UInt32 triOffset;
 126         pMem.getValue(triOffset);
 127
 128         oObject.setLeaf(count, triOffset);
 129     }
 130     else
 131     {
 132         Real32 split;
 133         pMem.getValue(split);
 134
 135         oObject.setInterior(static_cast<IntersectKDTreeNode::FlagsE>(flags),
 136                             count, split);
 137     }
 138 }
 139
 140 /* static */ void
 141 FieldTraits<IntersectKDTreeNode>::copyFromBin(
 142     BinaryDataHandler   &pMem,
 143     IntersectKDTreeNode *pObjectStore,
 144     SizeT                uiNumObjects )
 145 {
 146     for(SizeT i = 0; i < uiNumObjects; ++i)
 147     {
 148         copyFromBin(pMem, pObjectStore[i]);
 149     }
 150 }
 151
 152 OSG_END_NAMESPACE