LDM/nodes/SoLDMResourceParameters.h

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/*=======================================================================
** Author      : VSG (MMM YYYY)
**=======================================================================*/


#ifndef LDM_RESOURCE_PARAMETER_H
#define LDM_RESOURCE_PARAMETER_H

#ifdef _MSC_VER
#pragma warning( push )
#pragma warning(disable:4251)
#endif

#include <Inventor/fields/SoFieldContainer.h>
#include <Inventor/fields/SoSubFieldContainer.h>

#include <Inventor/fields/SoSFString.h>
#include <Inventor/fields/SoSFUShort.h>
#include <Inventor/fields/SoSFInt32.h>
#include <Inventor/fields/SoSFFloat.h>
#include <Inventor/fields/SoSFBool.h>
#include <Inventor/fields/SoSFEnum.h>
#include <Inventor/fields/SoSFString.h>
#include <Inventor/fields/SoSFVec3i32.h>

#include <Inventor/SbBox.h>

#include <Inventor/STL/vector>
#include <Inventor/STL/cassert>

class SoDataSet;
class SoLDMMediator;
class SoLDMTileVisitor;
class SoLDMResourceManager;

class  SoLDMResourceParameters : public SoFieldContainer
{
  SO_FIELDCONTAINER_HEADER(SoLDMResourceParameters);

public:
  struct FixedResolutionReport{
    enum ReportCode
    {
      PROGRESS,
      ABORT
    };
    ReportCode what;
    int numTilesToAdd;
    int numTilesToLoad;
    int numTilesLoaded;
  };

  typedef void FixedResolutionCB(FixedResolutionReport&, void*);

  enum LoadPolicy {
    NO_USER_INTERACTION,
    ALWAYS,
    NEVER
  };

  enum TileCachePolicy {
    NONE,

    LOWRES_ONLY,

    ALL
  };


  SoLDMResourceParameters();

  virtual ~SoLDMResourceParameters();

  SoSFInt32 maxMainMemory;
 
  SoSFInt32 maxTexMemory;

  SoSFEnum loadPolicy;

  SoSFEnum tileCachePolicy;

  SoSFInt32 tex3LoadRate;

  SoSFInt32 max2DTexMemory;

  SoSFInt32 tex2LoadRate;

  SoSFInt32 minResolutionThreshold;

  SoSFInt32 maxResolutionThreshold;

  SoSFVec3i32 tileDimension;

  SoSFVec3i32 subTileDimension;

  SoSFInt32 loadNotificationRate;

  SoSFFloat tileHalfLife;

  SoSFBool fixedResolution;

  SoSFInt32 resolution;

  SoSFInt32 numPrefetchThread;

  SoSFBool tileBorders;

  SoSFInt32 minTilesToLoad;

  enum ViewpointRefinementPolicy
  {
    VIEWPOINT_REFINEMENT_OFF,

    VIEWPOINT_REFINEMENT_ON,

    VIEWPOINT_REFINEMENT_INHERITED_FROM_GLOBAL,
  };

  SoSFEnum viewpointRefinementPolicy;

  enum ScreenResolutionCullingPolicy
  {
    SCREEN_RESOLUTION_CULLING_OFF,

    SCREEN_RESOLUTION_CULLING_ON,

    SCREEN_RESOLUTION_CULLING_INHERITED_FROM_GLOBAL,
  };

  SoSFEnum screenResolutionCullingPolicy;

  void setMovingTimeOut(float timeout);

  float getMovingTimeOut();

  int getDataSize();

  void enableFixedResolutionMode(int resolution, FixedResolutionCB* func);

  void setGeometryPriority(SoType geometryType, float priority);

  SbBool getGeometryPriority(SoType geometryType, float& priority);

private:
  typedef struct GeomPriority
  {
    float   m_weight;
    SoType  m_geomId;
  } GeomPriority;

  void setDataSet(SoDataSet *ds);

  void copyParameters(SoLDMMediator *mediator);

  void fprintfResourceManager(FILE *f);

  /*
  * This function allows you to synchronously unload the data if it needs to be refetched.
  */
  void invalidateData();

  /*
  * This function is used when collecting the geometry.
  * If fixed resolution mode is enabled, each collected geometry will count how many tiles
  * are needed to render them.
  * After geometry collection, volumeData will report to the application the total count.
  */
  void setNumTiles(int numTiles);

  int getNumTiles();

  SbBox3i32 XYZToVoxel(const SbBox3f &dataBox);


  bool isReportDisabled();
  void setReportDisabled(bool flag);
  FixedResolutionCB* getFixedResCB();
  int getNumTilesLoaded();
  bool toReport();
  void setToReport(bool flag);
  void increaseNumTilesLoaded();
  void decreaseNumTilesLoaded();
  void resetNumTilesLoaded();
  void resetFixedResVar();

  void sendToLdm(SoDataSet* ds);

  void enableParamsNotify(SbBool state);

  virtual void notify(SoNotList*);

  inline void setResourceManager(SoLDMResourceManager* resourceManager);

  inline void forceFixedResolution(bool flag);

  inline bool isFixedResolutionForced() const;

  enum Resolution {
    BEST = -1,
    FULL = 0
  };

private:

#if 1             SoDEPRECATED
  SoSFInt32 overlapping;

#endif 
#if 1             SoDEPRECATED
  SoSFInt32 maxTilesInMainMem;
SoDEPRECATED
  SoSFInt32 maxTilesInTexMem;
SoDEPRECATED
  SoSFBool fixedParams;

#endif 
#if 1             SoDEPRECATED
  SoSFInt32 max2DTextures;

  // TODO: the following friend dependencies should be removed once internal dependencies are removed
  friend class SoLDMResourceManager;
#endif 
  // Deprecated in 9700 and removed (hidden) in 10000.
  // No longer used by the default heightfield rendering algorithm( SoHeightFieldRender )
  // Use SoComplexity instead.
  SoSFInt32 maxNumTriangles;

  bool m_forceFixedResolution;

  SoLDMResourceParameters& operator=(const SoLDMResourceParameters& ldmrp);
  SoLDMResourceParameters(const SoLDMResourceParameters& );

  //Methods used in ldmParameterChangedCB
  void updateTileHalfLife(float timeInSec);
  void updateTileSize();
  void updateMaxResolutionThreshold( int threshold );
  void updateMinResolutionThreshold( int threshold );
  void updateLoadPolicy( LoadPolicy loadPolicy );
  void updateEnableFixedResolutionMode(int resolution, FixedResolutionCB* func);
  void updateDisableFixedResolutionMode();

  SoDataSet* m_ds;
  SoLDMResourceManager* m_resourceMgr;

  FixedResolutionCB* m_fixedResCB;
  int  m_numTilesLoaded;
  int  m_numTilesNeeded;
  bool m_toReport;
  bool m_reportDisable;
  bool m_isFixedRes;
  bool m_bLdmParamDebug;

  int m_previousMinThreshold;

  //to save current system state before using fixed res mode
  LoadPolicy         m_policyUsed;
  int                m_resolution;
  SoLDMTileVisitor*  m_fixedResVisitor;
  SoLDMTileVisitor*  m_beforeFixedResVisitor;
  bool m_beforeFixedResVisitorFlag;

  float m_movingTimeOut; //keep not loading for timeOut sec after the user stopped interacting.

  std::vector<GeomPriority> m_geomPriority;
  int getGeometryIndex(SoType geometryType);

  static bool s_artForceFixed;
};

/***************************************************************************/
inline bool
SoLDMResourceParameters::isReportDisabled()
{
  return m_reportDisable;
}

/***************************************************************************/
inline void
SoLDMResourceParameters::setReportDisabled(bool flag)
{
  m_reportDisable = flag;
}

/***************************************************************************/
inline SoLDMResourceParameters::FixedResolutionCB*
SoLDMResourceParameters::getFixedResCB()
{
  return m_fixedResCB;
}

/***************************************************************************/
inline int
SoLDMResourceParameters::getNumTilesLoaded()
{
  return m_numTilesLoaded;
}

/***************************************************************************/
inline bool
SoLDMResourceParameters::toReport()
{
  return m_toReport;
}

/***************************************************************************/
inline void
SoLDMResourceParameters::setToReport(bool flag)
{
  m_toReport = flag;
}

/***************************************************************************/
inline void
SoLDMResourceParameters::increaseNumTilesLoaded()
{
  m_numTilesLoaded++;
}

/***************************************************************************/
inline void
SoLDMResourceParameters::decreaseNumTilesLoaded()
{
  m_numTilesLoaded--;
}

/***************************************************************************/
inline void
SoLDMResourceParameters::resetNumTilesLoaded()
{
  m_numTilesLoaded = 0;
}

/***************************************************************************/
inline void
SoLDMResourceParameters::setResourceManager(SoLDMResourceManager* resourceManager)
{
  m_resourceMgr = resourceManager;
}

/***************************************************************************/
inline SoLDMResourceParameters&
SoLDMResourceParameters::operator=(const SoLDMResourceParameters& )
{
  assert(0);
  return *this;
}

/***************************************************************************/
inline void
SoLDMResourceParameters::forceFixedResolution(bool flag)
{
  m_forceFixedResolution = flag;
}

/***************************************************************************/
inline bool
SoLDMResourceParameters::isFixedResolutionForced() const
{
  return m_forceFixedResolution || s_artForceFixed;
}

/***************************************************************************/
extern  std::ostream& operator << (std::ostream& os, const SoLDMResourceParameters& p);

#ifdef _MSC_VER
#pragma warning( pop )
#endif

#endif

---

Open Inventor Toolkit reference manual, generated on 15 Mar 2023
Copyright © Thermo Fisher Scientific All rights reserved. http://www.openinventor.com/