vtkJPEGReader.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkJPEGReader_h
#define vtkJPEGReader_h

#include "vtkIOImageModule.h" // For export macro
#include "vtkImageReader2.h"

VTK_ABI_NAMESPACE_BEGIN
class VTKIOIMAGE_EXPORT vtkJPEGReader : public vtkImageReader2
{
public:
  static vtkJPEGReader* New();
  vtkTypeMacro(vtkJPEGReader, vtkImageReader2);
  void PrintSelf(ostream& os, vtkIndent indent) override;


  int CanReadFile(VTK_FILEPATH const char* fname) override;
  int CanReadFile(vtkResourceStream* stream) override;

  const char* GetFileExtensions() override { return ".jpeg .jpg"; }

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

protected:
  vtkJPEGReader() = default;
  ~vtkJPEGReader() override = default;

  template <class OT>
  void InternalUpdate(vtkImageData* data, OT* outPtr);

  void ExecuteInformation() override;
  void ExecuteDataWithInformation(vtkDataObject* out, vtkInformation* outInfo) override;

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

  static bool CheckMagicBytes(vtkResourceStream* stream);
};
VTK_ABI_NAMESPACE_END
#endif