This sub-namespace of ALib BitBuffer provides algorithms to compress integral arrays. Classes ac_v1::ArrayCompressor and ac_v1::HuffmanEncoder implement some data formats defined on bit-streams, which, in future versions of ALib, may be changed. With such future changes, theses classes will be published in a next enumerated namespace, parallel to this one.
This approach will allow software to read existing datasets from files (explicitly using older versions of the classes by selecting them via the namespace) and convert the data to the new binary format.

Type aliases aworx::ArrayCompressor, aworx::HuffmanEncoder and aworx::HuffmanDecoder will always refer to the latest version.

Note: Currently, there is no other version of the class available.

Classes
class	ArrayCompressor

class	HuffmanDecoder

class	HuffmanEncoder

Functions
template<typename TI >
void	readHuffman (BitReader &br, ArrayCompressor::Array< TI > &data)

template<typename TI >
void	readIncremental (BitReader &br, ArrayCompressor::Array< TI > &data)

template<typename TI >
void	readMinMax (BitReader &br, ArrayCompressor::Array< TI > &data)

template<typename TI >
void	readSparse (BitReader &br, ArrayCompressor::Array< TI > &data)

template<typename TI >
void	readUncompressed (BitReader &br, ArrayCompressor::Array< TI > &data)

template<typename TI >
void	readVerySparse (BitReader &br, ArrayCompressor::Array< TI > &data)

template<typename TI >
void	writeHuffman (BitWriter &bw, ArrayCompressor::Array< TI > &data)

template<typename TI >
void	writeIncremental (BitWriter &bw, ArrayCompressor::Array< TI > &data)

template<typename TI >
void	writeMinMax (BitWriter &bw, ArrayCompressor::Array< TI > &data)

template<typename TI >
void	writeSparse (BitWriter &bw, ArrayCompressor::Array< TI > &data)

template<typename TI >
void	writeUncompressed (BitWriter &bw, ArrayCompressor::Array< TI > &data)

template<typename TI >
void	writeVerySparse (BitWriter &bw, ArrayCompressor::Array< TI > &data)

Function Documentation

◆ readHuffman()

void aworx::lib::bitbuffer::ac_v1::readHuffman	(	BitReader &	br,
		ArrayCompressor::Array< TI > &	data
	)

Reads data compressed using class HuffmanDecoder.

Template Parameters

TI	The integral type of the array to read back.

Parameters

br	The bit reader to use.
data	The array to read the data to.

Definition at line 81 of file acalgos.inl.

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◆ readIncremental()

void aworx::lib::bitbuffer::ac_v1::readIncremental	(	BitReader &	br,
		ArrayCompressor::Array< TI > &	data
	)

Reads data compressed with writeIncremental.

Template Parameters

TI	The integral type of the array to read back.

Parameters

br	The bit reader to use.
data	The array to read the data to.

Definition at line 427 of file acalgos.inl.

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◆ readMinMax()

void aworx::lib::bitbuffer::ac_v1::readMinMax	(	BitReader &	br,
		ArrayCompressor::Array< TI > &	data
	)

Reads data compressed with method writeMinMax.

Template Parameters

TI	The integral type of the array to read back.

Parameters

br	The bit reader to use.
data	The array to read the data to.

Definition at line 171 of file acalgos.inl.

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◆ readSparse()

void aworx::lib::bitbuffer::ac_v1::readSparse	(	BitReader &	br,
		ArrayCompressor::Array< TI > &	data
	)

Reads data compressed with method writeSparse.

Template Parameters

TI	The integral type of the array to read back.

Parameters

br	The bit reader to use.
data	The array to read the data to.

Definition at line 222 of file acalgos.inl.

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◆ readUncompressed()

void aworx::lib::bitbuffer::ac_v1::readUncompressed	(	BitReader &	br,
		ArrayCompressor::Array< TI > &	data
	)

Reads data compressed using simply the mechanics provided with class BitWriter which tries to shorten integrals on writing.

Template Parameters

TI	The integral type of the array to read back.

Parameters

br	The bit reader to use.
data	The array to read the data to.

Definition at line 130 of file acalgos.inl.

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◆ readVerySparse()

void aworx::lib::bitbuffer::ac_v1::readVerySparse	(	BitReader &	br,
		ArrayCompressor::Array< TI > &	data
	)

Reads data compressed with method writeVerySparse.

Template Parameters

TI	The integral type of the array to read back.

Parameters

br	The bit reader to use.
data	The array to read the data to.

Definition at line 336 of file acalgos.inl.

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◆ writeHuffman()

void aworx::lib::bitbuffer::ac_v1::writeHuffman	(	BitWriter &	bw,
		ArrayCompressor::Array< TI > &	data
	)

Writes data compressed using class HuffmanEncoder.

Template Parameters

TI	The integral type of the array to write.

Parameters

bw	The bit writer to use.
data	The array to read the data from.

Definition at line 29 of file acalgos.inl.

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◆ writeIncremental()

void aworx::lib::bitbuffer::ac_v1::writeIncremental	(	BitWriter &	bw,
		ArrayCompressor::Array< TI > &	data
	)

Writes array data incrementally.

Template Parameters

TI	The integral type of the array to write.

Parameters

bw	The bit writer to use.
data	The array to read the data from.

Definition at line 374 of file acalgos.inl.

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◆ writeMinMax()

void aworx::lib::bitbuffer::ac_v1::writeMinMax	(	BitWriter &	bw,
		ArrayCompressor::Array< TI > &	data
	)

Writes array data by writing only the difference to the minimum found value.

Template Parameters

TI	The integral type of the array to write.

Parameters

bw	The bit writer to use.
data	The array to read the data from.

Definition at line 144 of file acalgos.inl.

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◆ writeSparse()

void aworx::lib::bitbuffer::ac_v1::writeSparse	(	BitWriter &	bw,
		ArrayCompressor::Array< TI > &	data
	)

Writes array data assuming it is sparsely set.

Template Parameters

TI	The integral type of the array to write.

Parameters

bw	The bit writer to use.
data	The array to read the data from.

Definition at line 194 of file acalgos.inl.

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◆ writeUncompressed()

void aworx::lib::bitbuffer::ac_v1::writeUncompressed	(	BitWriter &	bw,
		ArrayCompressor::Array< TI > &	data
	)

Writes array data by simply using the mechanics provided with class BitWriter, which tries to shorten integrals on writing.

Template Parameters

TI	The integral type of the array to write.

Parameters

bw	The bit writer to use.
data	The array to read the data from.

Definition at line 114 of file acalgos.inl.

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◆ writeVerySparse()

void aworx::lib::bitbuffer::ac_v1::writeVerySparse	(	BitWriter &	bw,
		ArrayCompressor::Array< TI > &	data
	)

Writes array data assuming it is very sparsely set.

Template Parameters

TI	The integral type of the array to write.

Parameters

bw	The bit writer to use.
data	The array to read the data from.

Definition at line 241 of file acalgos.inl.

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Classes

Functions

Function Documentation

◆ readHuffman()

◆ readIncremental()

◆ readMinMax()

◆ readSparse()

◆ readUncompressed()

◆ readVerySparse()

◆ writeHuffman()

◆ writeIncremental()

◆ writeMinMax()

◆ writeSparse()

◆ writeUncompressed()

◆ writeVerySparse()