vtkPVDataDeliveryManager.h

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/*=========================================================================

  Program: ParaView
  Module:  vtkPVDataDeliveryManager

  Copyright (c) Kitware, Inc.
  All rights reserved.
  See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef vtkPVDataDeliveryManager_h
#define vtkPVDataDeliveryManager_h

#include "vtkObject.h"
#include "vtkRemotingViewsModule.h" //needed for exports
#include "vtkSmartPointer.h"        // needed for iVar.
#include "vtkTuple.h"               // needed for vtkTuple.
#include "vtkWeakPointer.h"         // needed for iVar.

class vtkAlgorithmOutput;
class vtkDataObject;
class vtkExtentTranslator;
class vtkInformation;
class vtkPVDataRepresentation;
class vtkPVView;

#include <vector>

class VTKREMOTINGVIEWS_EXPORT vtkPVDataDeliveryManager : public vtkObject
{
public:
  vtkTypeMacro(vtkPVDataDeliveryManager, vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent) override;


  void SetView(vtkPVView*);
  vtkPVView* GetView() const;

  int GetSynchronizationMagicNumber();


  void RegisterRepresentation(vtkPVDataRepresentation* repr);
  void UnRegisterRepresentation(vtkPVDataRepresentation*);
  vtkPVDataRepresentation* GetRepresentation(unsigned int);


  void SetPiece(vtkPVDataRepresentation* repr, vtkDataObject* data, bool low_res,
    unsigned long trueSize = 0, int port = 0);

  bool HasPiece(vtkPVDataRepresentation* repr, bool low_res = false, int port = 0);

  vtkDataObject* GetPiece(vtkPVDataRepresentation* repr, bool low_res, int port = 0);

  vtkDataObject* GetDeliveredPiece(vtkPVDataRepresentation* repr, bool low_res, int port = 0);

  void ClearCache(vtkPVDataRepresentation* repr);


  vtkAlgorithmOutput* GetProducer(vtkPVDataRepresentation*, bool low_res, int port = 0);


  vtkInformation* GetPieceInformation(vtkPVDataRepresentation* repr, bool low_res, int port = 0);


  int GetNumberOfPorts(vtkPVDataRepresentation* repr);

  unsigned long GetVisibleDataSize(bool low_res);

  bool NeedsDelivery(
    vtkMTimeType timestamp, std::vector<unsigned int>& keys_to_deliver, bool use_lod);

  void Deliver(int use_low_res, unsigned int size, unsigned int* keys);

  virtual int GetDeliveredDataKey(bool low_res) const
  {
    (void)low_res;
    return 0;
  }

protected:
  vtkPVDataDeliveryManager();
  ~vtkPVDataDeliveryManager() override;

  double GetCacheKey(vtkPVDataRepresentation* repr) const;

  virtual void MoveData(vtkPVDataRepresentation* repr, bool low_res, int port) = 0;

  class vtkInternals;
  vtkInternals* Internals;

private:
  vtkPVDataDeliveryManager(const vtkPVDataDeliveryManager&) = delete;
  void operator=(const vtkPVDataDeliveryManager&) = delete;

  vtkWeakPointer<vtkPVView> View;
};

#endif

// VTK-HeaderTest-Exclude: vtkPVDataDeliveryManager.h