vtkZLibDataCompressor.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkZLibDataCompressor.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.
 
=========================================================================*/
#ifndef vtkZLibDataCompressor_h
#define vtkZLibDataCompressor_h
 
#include "vtkIOCoreModule.h" // For export macro
#include "vtkDataCompressor.h"
 
class VTKIOCORE_EXPORT vtkZLibDataCompressor : public vtkDataCompressor
{
public:
  vtkTypeMacro(vtkZLibDataCompressor,vtkDataCompressor);
  void PrintSelf(ostream& os, vtkIndent indent);
  static vtkZLibDataCompressor* New();
 
  size_t GetMaximumCompressionSpace(size_t size);
 
 
  vtkSetClampMacro(CompressionLevel, int, 0, 9);
  vtkGetMacro(CompressionLevel, int);
 
protected:
  vtkZLibDataCompressor();
  ~vtkZLibDataCompressor();
 
  int CompressionLevel;
 
  // Compression method required by vtkDataCompressor.
  size_t CompressBuffer(unsigned char const* uncompressedData,
                        size_t uncompressedSize,
                        unsigned char* compressedData,
                        size_t compressionSpace);
  // Decompression method required by vtkDataCompressor.
  size_t UncompressBuffer(unsigned char const* compressedData,
                          size_t compressedSize,
                          unsigned char* uncompressedData,
                          size_t uncompressedSize);
private:
  vtkZLibDataCompressor(const vtkZLibDataCompressor&);  // Not implemented.
  void operator=(const vtkZLibDataCompressor&);  // Not implemented.
};
 
#endif