vtkTIFFReader.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef vtkTIFFReader_h
#define vtkTIFFReader_h
 
#include "vtkImageReader2.h"
 
VTK_ABI_NAMESPACE_BEGIN
class VTKIOIMAGE_EXPORT vtkTIFFReader : public vtkImageReader2
{
public:
  static vtkTIFFReader* New();
  vtkTypeMacro(vtkTIFFReader, vtkImageReader2);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  using Superclass::CanReadFile;
  int CanReadFile(VTK_FILEPATH const char* fname) override;

  const char* GetFileExtensions() override { return ".tif .tiff"; }

  const char* GetDescriptiveName() override { return "TIFF"; }

  void SetOrientationType(unsigned int orientationType);
  vtkGetMacro(OrientationType, unsigned int);


  vtkGetMacro(OrientationTypeSpecifiedFlag, bool);


  vtkSetMacro(OriginSpecifiedFlag, bool);
  vtkGetMacro(OriginSpecifiedFlag, bool);
  vtkBooleanMacro(OriginSpecifiedFlag, bool);


  vtkSetMacro(SpacingSpecifiedFlag, bool);
  vtkGetMacro(SpacingSpecifiedFlag, bool);
  vtkBooleanMacro(SpacingSpecifiedFlag, bool);


  vtkSetMacro(IgnoreColorMap, bool);
  vtkGetMacro(IgnoreColorMap, bool);
  vtkBooleanMacro(IgnoreColorMap, bool);
protected:
  vtkTIFFReader();
  ~vtkTIFFReader() override;
 
  enum
  {
    NOFORMAT,
    RGB,
    GRAYSCALE,
    PALETTE_RGB,
    PALETTE_GRAYSCALE,
    OTHER
  };
 
  void ExecuteInformation() override;
  void ExecuteDataWithInformation(vtkDataObject* out, vtkInformation* outInfo) override;
 
  class vtkTIFFReaderInternal;
  vtkTIFFReaderInternal* InternalImage;
 
private:
  vtkTIFFReader(const vtkTIFFReader&) = delete;
  void operator=(const vtkTIFFReader&) = delete;

  template <typename T>
  int EvaluateImageAt(T* out, T* in);

  void GetColor(int index, unsigned short* r, unsigned short* g, unsigned short* b);
 
  // To support Zeiss images
  void ReadTwoSamplesPerPixelImage(void* out, unsigned int vtkNotUsed(width), unsigned int height);
 
  unsigned int GetFormat();

  void Initialize();

  template <typename T>
  void ReadImageInternal(T* buffer);

  template <typename T>
  void ReadVolume(T* buffer);

  void ReadTiles(void* buffer);

  template <typename T>
  void ReadGenericImage(T* out, unsigned int width, unsigned int height);

  template <typename T>
  void Process(T* outPtr, int outExtent[6], vtkIdType outIncr[3]);

  template <typename T>
  void Process2(T* outPtr, int* outExt);
 
  unsigned short* ColorRed;
  unsigned short* ColorGreen;
  unsigned short* ColorBlue;
  int TotalColors;
  unsigned int ImageFormat;
  int OutputExtent[6];
  vtkIdType OutputIncrements[3];
  unsigned int OrientationType;
  bool OrientationTypeSpecifiedFlag;
  bool OriginSpecifiedFlag;
  bool SpacingSpecifiedFlag;
  bool IgnoreColorMap;
};
 
VTK_ABI_NAMESPACE_END
#endif