Source/Contrib/ComputeBase/Base/OSGComputeAlgorithm.cpp

   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 #include <cstdlib>
  40 #include <cstdio>
  41
  42 #include <sstream>
  43 #include <fstream>
  44
  45 #include "OSGConfig.h"
  46
  47 #include "OSGAction.h"
  48 #include "OSGCamera.h"
  49 #include "OSGSceneFileHandler.h"
  50 #include "OSGVolumeDraw.h"
  51
  52 #include "OSGComputeAlgorithm.h"
  53 #include "OSGDrawEnv.h"
  54
  55 OSG_USING_NAMESPACE
  56
  57 // Documentation for this class is emited in the
  58 // OSGComputeAlgorithmBase.cpp file.
  59 // To modify it, please change the .fcd file (OSGComputeAlgorithm.fcd) and
  60 // regenerate the base file.
  61
  62 /*-------------------------------------------------------------------------*/
  63 /*                               Sync                                      */
  64
  65 void ComputeAlgorithm::changed(ConstFieldMaskArg whichField,
  66                                UInt32            origin,
  67                                BitVector         details)
  68 {
  69     Inherited::changed(whichField, origin, details);
  70 }
  71
  72 /*-------------------------------------------------------------------------*/
  73 /*                               Dump                                      */
  74
  75 void ComputeAlgorithm::dump(      UInt32    OSG_CHECK_ARG(uiIndent),
  76                             const BitVector OSG_CHECK_ARG(bvFlags )) const
  77 {
  78     SLOG << "Dump ComputeAlgorithm NI" << std::endl;
  79 }
  80
  81 /*-------------------------------------------------------------------------*/
  82 /*                            Constructors                                 */
  83
  84 ComputeAlgorithm::ComputeAlgorithm(void) :
  85     Inherited()
  86 {
  87 }
  88
  89 ComputeAlgorithm::ComputeAlgorithm(const ComputeAlgorithm &source) :
  90     Inherited(source)
  91 {
  92 }
  93
  94 /*-------------------------------------------------------------------------*/
  95 /*                             Destructor                                  */
  96
  97 ComputeAlgorithm::~ComputeAlgorithm(void)
  98 {
  99 }
 100
 101 /*-------------------------------------------------------------------------*/
 102 /*                                Draw                                     */
 103
 104
 105 /*-------------------------------------------------------------------------*/
 106 /*                               loading                                   */
 107
 108 /*-------------------------------------------------------------------------*/
 109 /*                               Init                                      */
 110
 111 void ComputeAlgorithm::initMethod(InitPhase ePhase)
 112 {
 113     Inherited::initMethod(ePhase);
 114
 115     if(ePhase == TypeObject::SystemPost)
 116     {
 117     }
 118 }
 119
 120
 121
 122 /*-------------------------------------------------------------------------*/
 123 /*                               Task                                      */
 124
 125
 126 ComputeAlgorithmDrawTask::ComputeAlgorithmDrawTask(UInt32 uiType) :
 127      Inherited (uiType),
 128     _pAlgorithm(NULL  ),
 129     _pBarrier  (NULL  )
 130 {
 131     if(_uiTypeTask == AlgorithmWithBarrier)
 132     {
 133         _pBarrier = Barrier::get(NULL, false);
 134         _pBarrier->setNumWaitFor(2);
 135     }
 136 }
 137
 138 ComputeAlgorithmDrawTask::ComputeAlgorithmDrawTask(
 139     ComputeAlgorithmP pAlgorithm,
 140     UInt32            uiType    ) :
 141
 142      Inherited (uiType    ),
 143     _pAlgorithm(pAlgorithm),
 144     _pBarrier  (NULL      )
 145 {
 146     if(_uiTypeTask == AlgorithmWithBarrier)
 147     {
 148         _pBarrier = Barrier::get(NULL, false);
 149         _pBarrier->setNumWaitFor(2);
 150     }
 151 }
 152
 153 ComputeAlgorithmDrawTask::~ComputeAlgorithmDrawTask(void)
 154 {
 155     _pAlgorithm = NULL;
 156     _pBarrier   = NULL;
 157 }
 158
 159 void ComputeAlgorithmDrawTask::execute(HardwareContext *pContext,
 160                                        DrawEnv         *pEnv    )
 161 {
 162     Window *pWindow = pEnv->getWindow();
 163
 164     OSG_ASSERT( pWindow != NULL);
 165     OSG_ASSERT(_pAlgorithm     );
 166
 167     switch(_uiTypeTask)
 168     {
 169         case Algorithm:
 170         {
 171             _pAlgorithm->execute(pContext, pEnv);
 172         }
 173         break;
 174
 175         case AlgorithmWithBarrier:
 176         {
 177             _pAlgorithm->execute(pContext, pEnv);
 178
 179             OSG_ASSERT(_pBarrier != NULL);
 180
 181             _pBarrier->enter();
 182         }
 183         break;
 184
 185         default:
 186             break;
 187     }
 188 }
 189
 190 void ComputeAlgorithmDrawTask::activateBarrier(bool bVal)
 191 {
 192     if(bVal == true)
 193     {
 194         _uiTypeTask = AlgorithmWithBarrier;
 195
 196         if(_pBarrier == NULL)
 197         {
 198             _pBarrier = Barrier::get(NULL, false);
 199             _pBarrier->setNumWaitFor(2);
 200         }
 201     }
 202     else
 203     {
 204         _uiTypeTask = Algorithm;
 205     }
 206 }
 207
 208 void ComputeAlgorithmDrawTask::setAlgorithm(ComputeAlgorithmP pAlgorithm)
 209 {
 210     _pAlgorithm = pAlgorithm;
 211 }
 212
 213
 214 void ComputeAlgorithmDrawTask::waitForBarrier(void)
 215 {
 216     OSG_ASSERT(_uiTypeTask == AlgorithmWithBarrier);
 217     OSG_ASSERT(_pBarrier   != NULL                );
 218
 219     _pBarrier->enter();
 220 }
 221
 222 void ComputeAlgorithmDrawTask::dump(UInt32 uiIndent)
 223 {
 224     for(UInt32 i = 0; i < uiIndent; ++i) { fprintf(stderr, " "); }
 225     fprintf(stderr, "ComputeAlgorithmDrawTask : ");
 226
 227     switch(_uiTypeTask)
 228     {
 229         case Algorithm:
 230         {
 231             fprintf(stderr, "Algorithm\n");
 232         }
 233         break;
 234
 235         case AlgorithmWithBarrier:
 236         {
 237             fprintf(stderr, "AlgorithmWithBarrier\n");
 238         }
 239         break;
 240
 241         default:
 242         {
 243             fprintf(stderr, "Unknown\n");
 244         }
 245         break;
 246     }
 247
 248 }
 249