24 #ifndef __COMPRESSION_H__
25 #define __COMPRESSION_H__
27 #include "services/base.h"
28 #include "data_management/data/data_block.h"
29 #include "services/daal_defines.h"
30 #include "services/error_handling.h"
34 namespace data_management
57 lastCompressionLevel = level9
64 enum CompressionMethod
87 struct DAAL_EXPORT CompressionParameter
89 CompressionLevel level;
95 CompressionParameter( CompressionLevel clevel = defaultLevel ) : level(clevel) {}
104 class DAAL_EXPORT CompressionIface
113 virtual void setInputDataBlock( byte *inBlock,
size_t size,
size_t offset ) = 0;
118 virtual void setInputDataBlock( DataBlock &inBlock ) = 0;
123 virtual bool isOutputDataBlockFull() = 0;
128 virtual size_t getUsedOutputDataBlockSize() = 0;
135 virtual void run( byte *outBlock,
size_t size,
size_t offset ) = 0;
140 virtual void run( DataBlock &outBlock ) = 0;
142 virtual ~CompressionIface() {}
154 class DAAL_EXPORT Compression :
public CompressionIface
160 Compression(): _errors(new services::ErrorCollection())
162 this->_errors->setCanThrow(
false);
163 _isOutBlockFull =
false;
164 _usedOutBlockSize = 0;
166 virtual void setInputDataBlock( byte *inBlock,
size_t size,
size_t offset ) = 0;
167 virtual void setInputDataBlock( DataBlock &inBlock ) = 0;
168 bool isOutputDataBlockFull() {
return _isOutBlockFull; }
169 size_t getUsedOutputDataBlockSize() {
return _usedOutBlockSize; }
170 virtual void run( byte *outBlock,
size_t size,
size_t offset ) = 0;
171 virtual void run( DataBlock &outBlock ) = 0;
172 virtual ~Compression() {}
178 virtual void checkInputParams( byte *inBlock,
size_t size )
180 if ( inBlock == NULL )
182 this->_errors->add(services::ErrorCompressionNullInputStream);
186 this->_errors->add(services::ErrorCompressionEmptyInputStream);
194 virtual void checkOutputParams( byte *outBlock,
size_t size )
196 if ( outBlock == NULL )
198 this->_errors->add(services::ErrorCompressionNullOutputStream);
202 this->_errors->add(services::ErrorCompressionEmptyOutputStream);
206 services::SharedPtr<services::ErrorCollection> getErrors()
212 bool _isOutBlockFull;
213 size_t _usedOutBlockSize;
215 services::SharedPtr<services::ErrorCollection> _errors;
227 class DAAL_EXPORT CompressorImpl :
public Compression
233 CompressorImpl() : Compression()
235 _isInitialized =
false;
237 virtual ~CompressorImpl() {}
240 virtual void initialize() { _isInitialized =
true; }
253 class DAAL_EXPORT DecompressorImpl :
public Compression
259 DecompressorImpl() : Compression()
261 _isInitialized =
false;
263 virtual ~DecompressorImpl() {}
266 virtual void initialize() { _isInitialized =
true; }
282 template<CompressionMethod dcmethod>
283 class DAAL_EXPORT Compressor :
public CompressorImpl
289 Compressor() : CompressorImpl() {}
290 virtual ~Compressor() {}
304 template<CompressionMethod dcmethod>
305 class DAAL_EXPORT Decompressor :
public DecompressorImpl
311 Decompressor() : DecompressorImpl() {}
312 virtual ~Decompressor() {}
315 using interface1::CompressionParameter;
316 using interface1::CompressionIface;
317 using interface1::Compression;
318 using interface1::CompressorImpl;
319 using interface1::DecompressorImpl;
320 using interface1::Compressor;
321 using interface1::Decompressor;
326 #endif // __COMPRESSION_H
daal::services::ErrorCompressionNullInputStream
Definition: error_indexes.h:298
daal::data_management::level0
Definition: compression.h:47
daal::data_management::lzo
Definition: compression.h:67
daal::data_management::CompressionMethod
CompressionMethod
Compression methods
Definition: compression.h:64
daal::data_management::level2
Definition: compression.h:49
daal::data_management::zlib
Definition: compression.h:66
daal::data_management::interface1::Compressor
Compressor class compresses an input data block and writes results into an output data block...
Definition: compression.h:283
daal::data_management::level9
Definition: compression.h:56
daal::data_management::level4
Definition: compression.h:51
daal::data_management::level6
Definition: compression.h:53
daal::data_management::interface1::CompressionParameter::level
CompressionLevel level
Definition: compression.h:89
daal::data_management::interface1::Compression::Compression
Compression()
Compression constructor.
Definition: compression.h:160
daal::data_management::interface1::CompressorImpl
Base class for the Compressor.
Definition: compression.h:227
daal::data_management::interface1::Decompressor::Decompressor
Decompressor()
Decompressor constructor
Definition: compression.h:311
daal::data_management::interface1::Decompressor
Decompressor class decompresses an input data block and writes results into an output data block...
Definition: compression.h:305
daal::data_management::interface1::Compression::checkOutputParams
virtual void checkOutputParams(byte *outBlock, size_t size)
Definition: compression.h:194
daal::data_management::interface1::CompressionIface
Abstract interface class for compression and decompression.
Definition: compression.h:104
daal::data_management::level5
Definition: compression.h:52
daal::data_management::interface1::Compression::isOutputDataBlockFull
bool isOutputDataBlockFull()
Definition: compression.h:168
daal::data_management::interface1::CompressorImpl::CompressorImpl
CompressorImpl()
Compressor constructor
Definition: compression.h:233
daal::services::ErrorCompressionEmptyInputStream
Definition: error_indexes.h:301
daal::data_management::interface1::DataBlock
Class that stores a pointer to a byte array and its size. Not responsible for memory management...
Definition: data_block.h:85
daal::data_management::level8
Definition: compression.h:55
daal::data_management::bzip2
Definition: compression.h:69
daal::data_management::level3
Definition: compression.h:50
daal::data_management::defaultLevel
Definition: compression.h:46
daal::data_management::level1
Definition: compression.h:48
daal::data_management::CompressionLevel
CompressionLevel
Compression levels
Definition: compression.h:44
daal::data_management::interface1::DecompressorImpl
Base class for the Decompressor.
Definition: compression.h:253
daal::data_management::interface1::CompressionParameter
Parameters for compression and decompression.
Definition: compression.h:87
daal::data_management::level7
Definition: compression.h:54
daal::data_management::interface1::Compressor::Compressor
Compressor()
Compressor constructor
Definition: compression.h:289
daal::data_management::interface1::Compression::getUsedOutputDataBlockSize
size_t getUsedOutputDataBlockSize()
Definition: compression.h:169
daal::data_management::interface1::CompressionParameter::CompressionParameter
CompressionParameter(CompressionLevel clevel=defaultLevel)
Definition: compression.h:95
daal::data_management::interface1::Compression
Base class for compression and decompression
Definition: compression.h:154
daal::data_management::interface1::DecompressorImpl::DecompressorImpl
DecompressorImpl()
Decompressor constructor
Definition: compression.h:259
daal::services::ErrorCompressionNullOutputStream
Definition: error_indexes.h:299
daal::data_management::interface1::Compression::checkInputParams
virtual void checkInputParams(byte *inBlock, size_t size)
Definition: compression.h:178
daal::services::ErrorCompressionEmptyOutputStream
Definition: error_indexes.h:302
daal::data_management::rle
Definition: compression.h:68