vtkMPIImageReader.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-FileCopyrightText: Copyright (c) Sandia Corporation
// SPDX-License-Identifier: BSD-3-Clause

#ifndef vtkMPIImageReader_h
#define vtkMPIImageReader_h

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

VTK_ABI_NAMESPACE_BEGIN
class vtkMPIOpaqueFileHandle;
class vtkMultiProcessController;

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


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

protected:
  vtkMPIImageReader();
  ~vtkMPIImageReader() override;

  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;

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

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

VTK_ABI_NAMESPACE_END
#endif // vtkMPIImageReader_h