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

  Program:   ParaView
  Module:    vtkRedistributePolyData.h

  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.

=========================================================================*/
/*----------------------------------------------------------------------------
 Copyright (c) Los Alamos National Laboratory
 See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
----------------------------------------------------------------------------*/

/**
 * @class   vtkRedistributePolyData
 * @brief   redistribute poly cells from other processes
 *                        (special version to color according to processor)
 */

#ifndef vtkRedistributePolyData_h
#define vtkRedistributePolyData_h

#include "vtkPVVTKExtensionsFiltersRenderingModule.h" // needed for export macro
#include "vtkPolyDataAlgorithm.h"

//*******************************************************************
class vtkDataArray;
class vtkDataSetAttributes;
class vtkMultiProcessController;
class vtkSocketController;

class VTKPVVTKEXTENSIONSFILTERSRENDERING_EXPORT vtkRedistributePolyData
  : public vtkPolyDataAlgorithm
{
public:
  vtkTypeMacro(vtkRedistributePolyData, vtkPolyDataAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  static vtkRedistributePolyData* New();

  /**
   * The filter needs a controller to determine which process it is in.
   */
  virtual void SetController(vtkMultiProcessController*);
  vtkGetObjectMacro(Controller, vtkMultiProcessController);

  vtkGetMacro(ColorProc, int);
  vtkSetMacro(ColorProc, int);
  void SetColorProc() { this->ColorProc = 1; };

  ///@{
  /**
   * These are here for ParaView compatibility. Not used.
   */
  virtual void SetSocketController(vtkSocketController*){};
  virtual void SetPassThrough(int){};
  virtual int GetPassThrough() { return 0; };
  vtkBooleanMacro(PassThrough, int);
  ///@}

protected:
  vtkRedistributePolyData();
  ~vtkRedistributePolyData() override;

  enum
  {
    CELL_ID_TAG = 10,
    POINT_COORDS_TAG = 20,
    NUM_POINTS_TAG = 30,
    NUM_CELLS_TAG = 40,
    BOUNDS_TAG = 60,
    CNT_SEND_TAG = 80,
    CNT_REC_TAG = 90,
    SEND_PROC_TAG = 100,
    SEND_NUM_TAG = 110,
    REC_PROC_TAG = 120,
    REC_NUM_TAG = 130,
    NUM_CURR_CELLS_TAG = 140,

    CELL_CNT_TAG = 150,
    CELL_TAG = 160,
    POINTS_SIZE_TAG = 170,
    POINTS_TAG = 180
  };

  class VTKPVVTKEXTENSIONSFILTERSRENDERING_EXPORT vtkCommSched
  {
  public:
    vtkCommSched();
    ~vtkCommSched();

    int SendCount;
    int ReceiveCount;
    int* SendTo;
    int* ReceiveFrom;
    vtkIdType* NumberOfCells;
    vtkIdType** SendNumber;
    vtkIdType** ReceiveNumber;

    vtkIdType*** SendCellList;
    vtkIdType** KeepCellList;

  private:
    vtkCommSched(const vtkCommSched&) = delete;
    void operator=(const vtkCommSched&) = delete;
  };

  virtual void MakeSchedule(vtkPolyData* input, vtkCommSched*);
  void OrderSchedule(vtkCommSched*);

  void SendCellSizes(
    vtkIdType*, vtkIdType*, vtkPolyData*, int, vtkIdType&, vtkIdType*, vtkIdType**);
  void CopyCells(vtkIdType*, vtkPolyData*, vtkPolyData*, vtkIdType**);
  void SendCells(
    vtkIdType*, vtkIdType*, vtkPolyData*, vtkPolyData*, int, vtkIdType&, vtkIdType*, vtkIdType**);
  void ReceiveCells(
    vtkIdType*, vtkIdType*, vtkPolyData*, int, vtkIdType*, vtkIdType*, vtkIdType, vtkIdType);

  void FindMemReq(vtkIdType*, vtkPolyData*, vtkIdType&, vtkIdType*);

  void AllocateCellDataArrays(vtkDataSetAttributes*, vtkIdType**, int, vtkIdType*);
  void AllocatePointDataArrays(vtkDataSetAttributes*, vtkIdType*, int, vtkIdType);
  void AllocateArrays(vtkDataArray*, vtkIdType);

  void CopyDataArrays(vtkDataSetAttributes*, vtkDataSetAttributes*, vtkIdType, vtkIdType*, int);

  void CopyCellBlockDataArrays(
    vtkDataSetAttributes*, vtkDataSetAttributes*, vtkIdType, vtkIdType, vtkIdType, vtkIdType, int);

  void CopyArrays(vtkDataArray*, vtkDataArray*, vtkIdType, vtkIdType*, int);

  void CopyBlockArrays(
    vtkDataArray*, vtkDataArray*, vtkIdType, vtkIdType, vtkIdType, vtkIdType, int);

  void SendDataArrays(
    vtkDataSetAttributes*, vtkDataSetAttributes*, vtkIdType, int, vtkIdType*, int);

  void SendCellBlockDataArrays(
    vtkDataSetAttributes*, vtkDataSetAttributes*, vtkIdType, int, vtkIdType, int);

  void SendArrays(vtkDataArray*, vtkIdType, int, vtkIdType*, int);

  void SendBlockArrays(vtkDataArray*, vtkIdType, int, vtkIdType, int);

  void ReceiveDataArrays(vtkDataSetAttributes*, vtkIdType, int, vtkIdType*, int);

  void ReceiveArrays(vtkDataArray*, vtkIdType, int, vtkIdType*, int);

  int RequestData(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector) override;

  // Do this as a proprocessing step.
  void CompleteInputArrays(vtkPolyData* input);
  void ReceiveInputArrays(vtkDataSetAttributes* attr, int recFrom);
  void SendInputArrays(vtkDataSetAttributes* attr, int sendTo);
  int DoubleCheckArrays(vtkPolyData* input);

  vtkMultiProcessController* Controller;

  int ColorProc; // Set to 1 to color data according to processor

private:
  vtkRedistributePolyData(const vtkRedistributePolyData&) = delete;
  void operator=(const vtkRedistributePolyData&) = delete;
};

//****************************************************************

#endif
