Source/System/NodeCores/Groups/Misc/OSGProxyGroup.cpp

   1 /*---------------------------------------------------------------------------*\
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   5  *             Copyright (C) 2000-2002 by the OpenSG Forum                   *
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  29 /*---------------------------------------------------------------------------*\
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  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 "OSGRenderAction.h"
  50 #include "OSGSceneFileHandler.h"
  51 #include "OSGVolumeDraw.h"
  52
  53 #include "OSGProxyGroup.h"
  54
  55 OSG_USING_NAMESPACE
  56
  57 // Documentation for this class is emited in the
  58 // OSGProxyGroupBase.cpp file.
  59 // To modify it, please change the .fcd file (OSGProxyGroup.fcd) and
  60 // regenerate the base file.
  61
  62 /*-------------------------------------------------------------------------*/
  63 /*                               Sync                                      */
  64
  65 void ProxyGroup::changed(ConstFieldMaskArg whichField,
  66                          UInt32            origin,
  67                          BitVector         details)
  68 {
  69     if(whichField & (UrlFieldMask))
  70     {
  71         if(getAbsoluteUrl().empty())
  72         {
  73             PathHandler *ph = SceneFileHandler::the()->getPathHandler();
  74
  75             if(ph != NULL)
  76             {
  77                 setAbsoluteUrl(ph->findFile(getUrl().c_str()));
  78             }
  79
  80             if(getAbsoluteUrl().empty())
  81             {
  82                 setAbsoluteUrl(getUrl());
  83             }
  84
  85             setState(NOT_LOADED);
  86         }
  87     }
  88     if(whichField & (StateFieldMask |
  89                      UrlFieldMask   |
  90                      VolumeFieldMask))
  91     {
  92         for(UInt32 i = 0; i < _mfParents.size(); i++)
  93         {
  94             _mfParents[i]->invalidateVolume();
  95         }
  96     }
  97
  98     Inherited::changed(whichField, origin, details);
  99 }
 100
 101 /*-------------------------------------------------------------------------*/
 102 /*                               Dump                                      */
 103
 104 void ProxyGroup::dump(       UInt32    OSG_CHECK_ARG(uiIndent),
 105                        const BitVector OSG_CHECK_ARG(bvFlags )) const
 106 {
 107     SLOG << "Dump ProxyGroup NI" << std::endl;
 108 }
 109
 110 /*-------------------------------------------------------------------------*/
 111 /*                            Constructors                                 */
 112
 113 ProxyGroup::ProxyGroup(void) :
 114      Inherited (    ),
 115     _loadedRoot(NULL)
 116 {
 117 }
 118
 119 ProxyGroup::ProxyGroup(const ProxyGroup &source) :
 120      Inherited (source),
 121     _loadedRoot(NULL  )
 122 {
 123 }
 124
 125 /*-------------------------------------------------------------------------*/
 126 /*                             Destructor                                  */
 127
 128 ProxyGroup::~ProxyGroup(void)
 129 {
 130 }
 131
 132 void ProxyGroup::resolveLinks(void)
 133 {
 134     _loadedRoot = NULL;
 135 }
 136
 137 /*!
 138   If url was loaded, extend volume by loaded geometry. Otherwise
 139   extend volume by the volume given in the proxy object
 140 */
 141
 142 void ProxyGroup::adjustVolume(Volume &volume)
 143 {
 144     volume.setValid();
 145     volume.setEmpty();
 146
 147     if(getEnabled() == false)
 148         return;
 149
 150     if(getState() == LOADED && getRoot() != NULL)
 151     {
 152         volume.extendBy(getRoot()->getVolume());
 153     }
 154     else
 155     {
 156         volume.extendBy(getVolume());
 157     }
 158 }
 159
 160 /*-------------------------------------------------------------------------*/
 161 /*                                Draw                                     */
 162
 163 /*!
 164   Draw loaded geometry. If nothing was loaded until now, start
 165   loading. If loading is not finished, draw the children of
 166   thid group.
 167  */
 168
 169 #ifdef OSG_OLD_RENDER_ACTION
 170 Action::ResultE ProxyGroup::render(Action *action)
 171 {
 172     DrawActionBase *da        = dynamic_cast<DrawActionBase *>(action);
 173
 174     if(getEnabled() == false)
 175         return Action::Continue;
 176
 177     if(getState() == NOT_LOADED)
 178         startLoading();
 179
 180     if(getState() == LOAD_THREAD_FINISHED)
 181     {
 182         if(_loadedRoot != NULL)
 183         {
 184             _loadThread = NULL;
 185
 186             setRoot(_loadedRoot);
 187
 188             getRoot()->invalidateVolume();
 189             getRoot()->updateVolume();
 190
 191
 192             setState(LOADED);
 193
 194             da->getActNode()->invalidateVolume();
 195             da->getActNode()->updateVolume    ();
 196         }
 197         else
 198         {
 199             SWARNING << "failed to load " << getAbsoluteUrl() << std::endl;
 200
 201             setState(LOAD_ERROR);
 202         }
 203     }
 204
 205     if(getState() == LOADED)
 206     {
 207         da->useNodeList();
 208
 209         if(da->isVisible(getCPtr(getRoot())))
 210             da->addNode(getRoot());
 211     }
 212     else
 213     {
 214         if(da->getActNode()->getNChildren() == 0)
 215         {
 216             Color3f col;
 217             col.setValuesRGB(.5,.3,0);
 218
 219             dropVolume(da, da->getActNode(), col);
 220         }
 221     }
 222
 223     // thread cleanup
 224     if(_loadThread && _loadQueue.empty())
 225     {
 226         printf("join\n");
 227         BaseThread::join(_loadThread);
 228         _loadThread = NULL;
 229     }
 230
 231     return Action::Continue;
 232 }
 233 #endif
 234
 235 Action::ResultE ProxyGroup::renderEnter(Action *action)
 236 {
 237     return Action::Continue;
 238 }
 239
 240 /*-------------------------------------------------------------------------*/
 241 /*                               loading                                   */
 242
 243 /*!
 244   Load the given URL, currently the URL is treated as a filename.
 245  */
 246
 247 void ProxyGroup::startLoading(void)
 248 {
 249 #ifdef OSG_OLD_RENDER_ACTION
 250     if(getConcurrentLoad() == false)
 251     {
 252         if(getMFInline()->size() == 0)
 253         {
 254             _loadedRoot = SceneFileHandler::the()->read(
 255                 getAbsoluteUrl().c_str());
 256         }
 257         else
 258         {
 259             std::stringstream tmpStream(std::ios_base::in    |
 260                                         std::ios_base::out   |
 261                                         std::ios_base::binary);
 262
 263             tmpStream.write(
 264                 reinterpret_cast<const char*>(&getMFInline()->front()),
 265                 getMFInline()->size ());
 266
 267             _loadedRoot = SceneFileHandler::the()->read(tmpStream, "osb");
 268         }
 269
 270         setState(LOAD_THREAD_FINISHED);
 271     }
 272     else
 273     {
 274         if(_loadLock == NULL)
 275         {
 276             _loadLock = Lock::get("ProxyGroupLoadLock");
 277         }
 278
 279         _loadLock->acquire();
 280
 281         bool noThread = _loadQueue.empty();
 282
 283         _loadQueue.push(this);
 284
 285         setState(LOAD_THREAD_RUNNING);
 286
 287         _loadLock->release();
 288
 289         if(noThread)
 290         {
 291             if(_loadThread)
 292                 BaseThread::join(_loadThread);
 293
 294             _loadThread = dynamic_cast<Thread *>(
 295                 ThreadManager::the()->getThread(NULL));
 296
 297             _loadThread->runFunction(loadProc,
 298                                      Thread::getCurrentAspect(),
 299                                      NULL                     );
 300         }
 301     }
 302 #endif
 303 }
 304
 305 /*-------------------------------------------------------------------------*/
 306 /*                               Init                                      */
 307
 308 void ProxyGroup::initMethod(InitPhase ePhase)
 309 {
 310     Inherited::initMethod(ePhase);
 311
 312     if(ePhase == TypeObject::SystemPost)
 313     {
 314         RenderAction::registerEnterDefault(
 315             ProxyGroup::getClassType(),
 316             reinterpret_cast<Action::Callback>(&ProxyGroup::renderEnter));
 317     }
 318 }
 319
 320
 321 void ProxyGroup::loadProc(void *)
 322 {
 323 #ifdef OSG_OLD_RENDER_ACTION
 324     bool stopThread = false;
 325
 326     ProxyGroup *g;
 327
 328     _loadLock->acquire();
 329
 330     g = _loadQueue.front();
 331
 332     _loadLock->release();
 333
 334     while(!stopThread)
 335     {
 336         if(g->getMFInline()->size() == 0)
 337         {
 338             g->_loadedRoot=SceneFileHandler::the()->read(
 339                 g->getAbsoluteUrl().c_str());
 340         }
 341         else
 342         {
 343             std::stringstream tmpStream(std::ios_base::in    |
 344                                         std::ios_base::out   |
 345                                         std::ios_base::binary);
 346
 347             tmpStream.write(
 348                 reinterpret_cast<const char *>(&g->getMFInline()->front()),
 349                 g->getMFInline()->size());
 350
 351             g->_loadedRoot = SceneFileHandler::the()->read(tmpStream, "osb");
 352         }
 353
 354         g->setState(LOAD_THREAD_FINISHED);
 355
 356         _loadLock->acquire();
 357
 358         _loadQueue.pop();
 359
 360         if(_loadQueue.empty())
 361         {
 362             stopThread=true;
 363         }
 364         else
 365         {
 366             g=_loadQueue.front();
 367         }
 368
 369         _loadLock->release();
 370     }
 371 #endif
 372 }
 373
 374 Thread                         *ProxyGroup::_loadThread = NULL;
 375
 376 std::queue<ProxyGroupUnrecPtr>  ProxyGroup::_loadQueue  =
 377     std::queue<ProxyGroupUnrecPtr>();
 378
 379 Lock                           *ProxyGroup::_loadLock   = NULL;