VTK  9.3.0
vtkZLibDataCompressor.h
Go to the documentation of this file.
1 // SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2 // SPDX-License-Identifier: BSD-3-Clause
14 #ifndef vtkZLibDataCompressor_h
15 #define vtkZLibDataCompressor_h
16 
17 #include "vtkDataCompressor.h"
18 #include "vtkIOCoreModule.h" // For export macro
19 
20 VTK_ABI_NAMESPACE_BEGIN
21 class VTKIOCORE_EXPORT vtkZLibDataCompressor : public vtkDataCompressor
22 {
23 public:
25  void PrintSelf(ostream& os, vtkIndent indent) override;
27 
34  size_t GetMaximumCompressionSpace(size_t size) override;
35 
37 
40  // Compression level getter required by vtkDataCompressor.
41  int GetCompressionLevel() override;
42 
43  // Compression level setter required by vtkDataCompresor.
44  void SetCompressionLevel(int compressionLevel) override;
46 
47 protected:
50 
52 
53  // Compression method required by vtkDataCompressor.
54  size_t CompressBuffer(unsigned char const* uncompressedData, size_t uncompressedSize,
55  unsigned char* compressedData, size_t compressionSpace) override;
56  // Decompression method required by vtkDataCompressor.
57  size_t UncompressBuffer(unsigned char const* compressedData, size_t compressedSize,
58  unsigned char* uncompressedData, size_t uncompressedSize) override;
59 
60 private:
62  void operator=(const vtkZLibDataCompressor&) = delete;
63 };
64 
65 VTK_ABI_NAMESPACE_END
66 #endif
Abstract interface for data compression classes.
a simple class to control print indentation
Definition: vtkIndent.h:38
Data compression using zlib.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
int GetCompressionLevel() override
Get/Set the compression level.
~vtkZLibDataCompressor() override
size_t UncompressBuffer(unsigned char const *compressedData, size_t compressedSize, unsigned char *uncompressedData, size_t uncompressedSize) override
size_t GetMaximumCompressionSpace(size_t size) override
Get the maximum space that may be needed to store data of the given uncompressed size after compressi...
size_t CompressBuffer(unsigned char const *uncompressedData, size_t uncompressedSize, unsigned char *compressedData, size_t compressionSpace) override
static vtkZLibDataCompressor * New()
void SetCompressionLevel(int compressionLevel) override
Get/Set the compression level.
@ size
Definition: vtkX3D.h:253