LibreOffice Module vcl (master): LZWDecompressor Class Reference

LibreOffice Module vcl (master) 1

#include <lzwdecom.hxx>

Collaboration diagram for LZWDecompressor:

Public Member Functions
	LZWDecompressor ()

	~LZWDecompressor ()

void	StartDecompression (SvStream &rIStream)

sal_uInt64	Decompress (sal_uInt8 *pTarget, sal_uInt32 nMaxCount)

Private Member Functions
sal_uInt16	GetNextCode ()

void	AddToTable (sal_uInt16 nPrevCode, sal_uInt16 nCodeFirstData)

void	DecompressSome ()

Private Attributes
SvStream *	pIStream

std::array< LZWTableEntry, MAX_TABLE_SIZE >	aTable

sal_uInt16	nTableSize

bool	bEOIFound

bool	bInvert

bool	bFirst

sal_uInt16	nOldCode

std::array< sal_uInt8, MAX_TABLE_SIZE >	pOutBuf

sal_uInt8 *	pOutBufData

sal_uInt16	nOutBufDataLen

sal_uInt8	nInputBitsBuf

sal_uInt16	nInputBitsBufSize

Detailed Description

Definition at line 37 of file lzwdecom.hxx.

Constructor & Destructor Documentation

LZWDecompressor::LZWDecompressor ( )

Definition at line 25 of file lzwdecom.cxx.

LZWDecompressor::~LZWDecompressor ( )

Definition at line 47 of file lzwdecom.cxx.

Member Function Documentation

void LZWDecompressor::AddToTable	(	sal_uInt16	nPrevCode,
		sal_uInt16	nCodeFirstData
	)

private

Definition at line 148 of file lzwdecom.cxx.

References aTable, bEOIFound, MAX_TABLE_SIZE, nTableSize, and SAL_WARN.

Referenced by DecompressSome().

sal_uInt64 LZWDecompressor::Decompress	(	sal_uInt8 *	pTarget,
		sal_uInt32	nMaxCount
	)

Definition at line 77 of file lzwdecom.cxx.

References bEOIFound, DecompressSome(), SvStream::GetError(), nCount, nOutBufDataLen, pIStream, and pOutBufData.

void LZWDecompressor::DecompressSome ( )

private

Definition at line 180 of file lzwdecom.cxx.

References AddToTable(), aTable, bEOIFound, GetNextCode(), i, nCode, nOldCode, nOutBufDataLen, nTableSize, pOutBuf, and pOutBufData.

Referenced by Decompress().

sal_uInt16 LZWDecompressor::GetNextCode ( )

private

Definition at line 115 of file lzwdecom.cxx.

References bInvert, nCode, nInputBitsBuf, nInputBitsBufSize, nTableSize, pIStream, and SvStream::ReadUChar().

Referenced by DecompressSome().

void LZWDecompressor::StartDecompression ( SvStream & rIStream )

Definition at line 52 of file lzwdecom.cxx.

References bEOIFound, bFirst, bInvert, nInputBitsBuf, nInputBitsBufSize, nOutBufDataLen, nTableSize, pIStream, and SvStream::ReadUChar().

Member Data Documentation

std::array<LZWTableEntry, MAX_TABLE_SIZE> LZWDecompressor::aTable

private

Definition at line 56 of file lzwdecom.hxx.

Referenced by AddToTable(), and DecompressSome().

bool LZWDecompressor::bEOIFound

private

Definition at line 59 of file lzwdecom.hxx.

Referenced by AddToTable(), Decompress(), DecompressSome(), and StartDecompression().

bool LZWDecompressor::bFirst

private

Definition at line 59 of file lzwdecom.hxx.

Referenced by StartDecompression().

bool LZWDecompressor::bInvert

private

Definition at line 59 of file lzwdecom.hxx.

Referenced by GetNextCode(), and StartDecompression().

sal_uInt8 LZWDecompressor::nInputBitsBuf

private

Definition at line 67 of file lzwdecom.hxx.

Referenced by GetNextCode(), and StartDecompression().

sal_uInt16 LZWDecompressor::nInputBitsBufSize

private

Definition at line 68 of file lzwdecom.hxx.

Referenced by GetNextCode(), and StartDecompression().

sal_uInt16 LZWDecompressor::nOldCode

private

Definition at line 61 of file lzwdecom.hxx.

Referenced by DecompressSome().

sal_uInt16 LZWDecompressor::nOutBufDataLen

private

Definition at line 65 of file lzwdecom.hxx.

Referenced by Decompress(), DecompressSome(), and StartDecompression().

sal_uInt16 LZWDecompressor::nTableSize

private

Definition at line 57 of file lzwdecom.hxx.

Referenced by AddToTable(), DecompressSome(), GetNextCode(), and StartDecompression().

SvStream* LZWDecompressor::pIStream

private

Definition at line 54 of file lzwdecom.hxx.

Referenced by Decompress(), GetNextCode(), and StartDecompression().

std::array<sal_uInt8, MAX_TABLE_SIZE> LZWDecompressor::pOutBuf

private

Definition at line 63 of file lzwdecom.hxx.

Referenced by DecompressSome().

sal_uInt8* LZWDecompressor::pOutBufData

private

Definition at line 64 of file lzwdecom.hxx.

Referenced by Decompress(), and DecompressSome().

The documentation for this class was generated from the following files: