vtkMPIImageReader.h

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// -*- c++ -*-
/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkMPIImageReader.h

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm 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) Sandia Corporation
 See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
----------------------------------------------------------------------------*/

#ifndef vtkMPIImageReader_h
#define vtkMPIImageReader_h

#include "vtkIOMPIImageModule.h" // For export macro
#include "vtkImageReader.h"

class vtkMPIOpaqueFileHandle;
class vtkMultiProcessController;

class VTKIOMPIIMAGE_EXPORT vtkMPIImageReader : public vtkImageReader
{
public:
  vtkTypeMacro(vtkMPIImageReader, vtkImageReader);
  static vtkMPIImageReader *New();
  virtual void PrintSelf(ostream &os, vtkIndent indent) override;


  vtkGetObjectMacro(Controller, vtkMultiProcessController);
  virtual void SetController(vtkMultiProcessController *);

protected:
  vtkMPIImageReader();
  ~vtkMPIImageReader();

  vtkMultiProcessController *Controller;

  int GetDataScalarTypeSize();

  virtual void PartitionController(const int extent[6]);

  virtual unsigned long GetHeaderSize(vtkMPIOpaqueFileHandle &file);

  virtual void SetupFileView(vtkMPIOpaqueFileHandle &file, const int extent[6]);

  virtual void ReadSlice(int slice, const int extent[6], void *buffer);

  virtual void TransformData(vtkImageData *data);


  void SetGroupedController(vtkMultiProcessController *);
  vtkMultiProcessController *GroupedController;

  virtual void ExecuteDataWithInformation(vtkDataObject *data,
                                          vtkInformation *outInfo) override;

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

#endif //vtkMPIImageReader_h