LibreOffice Module vcl (master): CCIDecompressor Class Reference

LibreOffice Module vcl (master) 1

#include <ccidecom.hxx>

Collaboration diagram for CCIDecompressor:

Public Member Functions
	CCIDecompressor (sal_uInt32 nOptions, sal_uInt32 nImageWidth)

	~CCIDecompressor ()

void	StartDecompression (SvStream &rIStream)

DecompressStatus	DecompressScanline (sal_uInt8 *pTarget, sal_uInt64 nTargetBits, bool bLastLine)

Private Member Functions
void	MakeLookUp (const CCIHuffmanTableEntry pHufTab, const CCIHuffmanTableEntry pHufTabSave, CCILookUpTableEntry *pLookUp, sal_uInt16 nHuffmanTableSize, sal_uInt16 nMaxCodeBits)

bool	ReadEOL ()

bool	Read2DTag ()

sal_uInt8	ReadBlackOrWhite ()

sal_uInt16	ReadCodeAndDecode (const CCILookUpTableEntry *pLookUp, sal_uInt16 nMaxCodeBits)

bool	Read1DScanlineData (sal_uInt8 *pTarget, sal_uInt16 nTargetBits)

bool	Read2DScanlineData (sal_uInt8 *pTarget, sal_uInt16 nTargetBits)

Static Private Member Functions
static void	FillBits (sal_uInt8 *pTarget, sal_uInt16 nTargetBits, sal_uInt16 nBitPos, sal_uInt16 nNumBits, sal_uInt8 nBlackOrWhite)

static sal_uInt16	CountBits (const sal_uInt8 *pData, sal_uInt16 nDataSizeBits, sal_uInt16 nBitPos, sal_uInt8 nBlackOrWhite)

Private Attributes
bool	bTableBad

bool	bStatus

std::unique_ptr< sal_uInt8[]>	pByteSwap

SvStream *	pIStream

sal_uInt32	nEOLCount

sal_uInt32	nWidth

sal_uInt32	nOptions

bool	bFirstEOL

std::array< CCILookUpTableEntry, 1<< 13 >	pWhiteLookUp

std::array< CCILookUpTableEntry, 1<< 13 >	pBlackLookUp

std::array< CCILookUpTableEntry, 1<< 10 >	p2DModeLookUp

std::array< CCILookUpTableEntry, 1<< 11 >	pUncompLookUp

sal_uInt32	nInputBitsBuf

sal_uInt16	nInputBitsBufSize

std::unique_ptr< sal_uInt8[]>	pLastLine

sal_uInt64	nLastLineSize

Detailed Description

Definition at line 59 of file ccidecom.hxx.

Constructor & Destructor Documentation

CCIDecompressor::CCIDecompressor	(	sal_uInt32	nOptions,
		sal_uInt32	nImageWidth
	)

Definition at line 567 of file ccidecom.cxx.

References CCI2DModeTableSize, CCI_OPTION_INVERSEBITORDER, CCIBlackTableSize, CCIUncompTableSize, CCIWhiteTableSize, i, MakeLookUp(), p2DModeLookUp, pBlackLookUp, pByteSwap, pUncompLookUp, and pWhiteLookUp.

CCIDecompressor::~CCIDecompressor ( )

Definition at line 597 of file ccidecom.cxx.

Member Function Documentation

sal_uInt16 CCIDecompressor::CountBits	(	const sal_uInt8 *	pData,
		sal_uInt16	nDataSizeBits,
		sal_uInt16	nBitPos,
		sal_uInt8	nBlackOrWhite
	)

staticprivate

Definition at line 873 of file ccidecom.cxx.

References nPos.

Referenced by Read2DScanlineData().

DecompressStatus CCIDecompressor::DecompressScanline	(	sal_uInt8 *	pTarget,
		sal_uInt64	nTargetBits,
		bool	bLastLine
	)

Definition at line 614 of file ccidecom.cxx.

References bFirstEOL, bStatus, CCI_OPTION_2D, CCI_OPTION_BYTEALIGNROW, CCI_OPTION_EOL, SvStream::GetError(), nEOLCount, nInputBitsBuf, nInputBitsBufSize, nLastLineSize, nOptions, pIStream, pLastLine, Read1DScanlineData(), Read2DScanlineData(), Read2DTag(), ReadEOL(), SAL_MAX_UINT16, SvStream::Seek(), and SvStream::Tell().

void CCIDecompressor::FillBits	(	sal_uInt8 *	pTarget,
		sal_uInt16	nTargetBits,
		sal_uInt16	nBitPos,
		sal_uInt16	nNumBits,
		sal_uInt8	nBlackOrWhite
	)

staticprivate

Definition at line 849 of file ccidecom.cxx.

Referenced by Read2DScanlineData().

void CCIDecompressor::MakeLookUp	(	const CCIHuffmanTableEntry *	pHufTab,
		const CCIHuffmanTableEntry *	pHufTabSave,
		CCILookUpTableEntry *	pLookUp,
		sal_uInt16	nHuffmanTableSize,
		sal_uInt16	nMaxCodeBits
	)

private

Definition at line 709 of file ccidecom.cxx.

References bTableBad, i, nCode, CCIHuffmanTableEntry::nCode, CCIHuffmanTableEntry::nCodeBits, CCILookUpTableEntry::nCodeBits, nValue, CCIHuffmanTableEntry::nValue, and CCILookUpTableEntry::nValue.

Referenced by CCIDecompressor().

bool CCIDecompressor::Read1DScanlineData	(	sal_uInt8 *	pTarget,
		sal_uInt16	nTargetBits
	)

private

Definition at line 903 of file ccidecom.cxx.

References CCI_OPTION_INVERSEBITORDER, nCode, nEOLCount, nInputBitsBuf, nInputBitsBufSize, nOptions, pBlackLookUp, pByteSwap, pIStream, pWhiteLookUp, and SvStream::ReadUChar().

Referenced by DecompressScanline().

bool CCIDecompressor::Read2DScanlineData	(	sal_uInt8 *	pTarget,
		sal_uInt16	nTargetBits
	)

private

Definition at line 1002 of file ccidecom.cxx.

References bStatus, CCI2DMODE_HORZ, CCI2DMODE_PASS, CCI2DMODE_UNCOMP, CCI2DMODE_VERT_0, CCIUNCOMP_0White_1Black, CCIUNCOMP_0White_End, CCIUNCOMP_4White_1Black, CCIUNCOMP_5White, CountBits(), FillBits(), p2DModeLookUp, pBlackLookUp, pLastLine, pUncompLookUp, pWhiteLookUp, ReadBlackOrWhite(), and ReadCodeAndDecode().

Referenced by DecompressScanline().

bool CCIDecompressor::Read2DTag ( )

private

Definition at line 794 of file ccidecom.cxx.

References CCI_OPTION_INVERSEBITORDER, nInputBitsBuf, nInputBitsBufSize, nOptions, pByteSwap, pIStream, and SvStream::ReadUChar().

Referenced by DecompressScanline().

sal_uInt8 CCIDecompressor::ReadBlackOrWhite ( )

private

Definition at line 810 of file ccidecom.cxx.

References CCI_OPTION_INVERSEBITORDER, nInputBitsBuf, nInputBitsBufSize, nOptions, pByteSwap, pIStream, and SvStream::ReadUChar().

Referenced by Read2DScanlineData().

sal_uInt16 CCIDecompressor::ReadCodeAndDecode	(	const CCILookUpTableEntry *	pLookUp,
		sal_uInt16	nMaxCodeBits
	)

private

Definition at line 827 of file ccidecom.cxx.

References bStatus, CCI_OPTION_INVERSEBITORDER, nCode, CCILookUpTableEntry::nCodeBits, nInputBitsBuf, nInputBitsBufSize, nOptions, CCILookUpTableEntry::nValue, pByteSwap, pIStream, and SvStream::ReadUChar().

Referenced by Read2DScanlineData().

bool CCIDecompressor::ReadEOL ( )

private

Definition at line 750 of file ccidecom.cxx.

References CCI_OPTION_INVERSEBITORDER, SvStream::good(), nCode, nEOLCount, nInputBitsBuf, nInputBitsBufSize, nOptions, nWidth, pByteSwap, pIStream, SvStream::ReadUChar(), and SvStream::Tell().

Referenced by DecompressScanline().

void CCIDecompressor::StartDecompression ( SvStream & rIStream )

Definition at line 602 of file ccidecom.cxx.

References bFirstEOL, bStatus, bTableBad, nEOLCount, nInputBitsBufSize, and pIStream.

Member Data Documentation

bool CCIDecompressor::bFirstEOL

private

Definition at line 112 of file ccidecom.hxx.

Referenced by DecompressScanline(), and StartDecompression().

bool CCIDecompressor::bStatus

private

Definition at line 100 of file ccidecom.hxx.

Referenced by DecompressScanline(), Read2DScanlineData(), ReadCodeAndDecode(), and StartDecompression().

bool CCIDecompressor::bTableBad

private

Definition at line 98 of file ccidecom.hxx.

Referenced by MakeLookUp(), and StartDecompression().

sal_uInt32 CCIDecompressor::nEOLCount

private

Definition at line 106 of file ccidecom.hxx.

Referenced by DecompressScanline(), Read1DScanlineData(), ReadEOL(), and StartDecompression().

sal_uInt32 CCIDecompressor::nInputBitsBuf

private

Definition at line 119 of file ccidecom.hxx.

Referenced by DecompressScanline(), Read1DScanlineData(), Read2DTag(), ReadBlackOrWhite(), ReadCodeAndDecode(), and ReadEOL().

sal_uInt16 CCIDecompressor::nInputBitsBufSize

private

Definition at line 120 of file ccidecom.hxx.

Referenced by DecompressScanline(), Read1DScanlineData(), Read2DTag(), ReadBlackOrWhite(), ReadCodeAndDecode(), ReadEOL(), and StartDecompression().

sal_uInt64 CCIDecompressor::nLastLineSize

private

Definition at line 123 of file ccidecom.hxx.

Referenced by DecompressScanline().

sal_uInt32 CCIDecompressor::nOptions

private

Definition at line 110 of file ccidecom.hxx.

Referenced by DecompressScanline(), Read1DScanlineData(), Read2DTag(), ReadBlackOrWhite(), ReadCodeAndDecode(), and ReadEOL().

sal_uInt32 CCIDecompressor::nWidth

private

Definition at line 108 of file ccidecom.hxx.

Referenced by ReadEOL().

std::array<CCILookUpTableEntry, 1<<10> CCIDecompressor::p2DModeLookUp

private

Definition at line 116 of file ccidecom.hxx.

Referenced by CCIDecompressor(), and Read2DScanlineData().

std::array<CCILookUpTableEntry, 1<<13> CCIDecompressor::pBlackLookUp

private

Definition at line 115 of file ccidecom.hxx.

Referenced by CCIDecompressor(), Read1DScanlineData(), and Read2DScanlineData().

std::unique_ptr<sal_uInt8[]> CCIDecompressor::pByteSwap

private

Definition at line 102 of file ccidecom.hxx.

Referenced by CCIDecompressor(), Read1DScanlineData(), Read2DTag(), ReadBlackOrWhite(), ReadCodeAndDecode(), and ReadEOL().

SvStream* CCIDecompressor::pIStream

private

Definition at line 104 of file ccidecom.hxx.

Referenced by DecompressScanline(), Read1DScanlineData(), Read2DTag(), ReadBlackOrWhite(), ReadCodeAndDecode(), ReadEOL(), and StartDecompression().

std::unique_ptr<sal_uInt8[]> CCIDecompressor::pLastLine

private

Definition at line 122 of file ccidecom.hxx.

Referenced by DecompressScanline(), and Read2DScanlineData().

std::array<CCILookUpTableEntry, 1<<11> CCIDecompressor::pUncompLookUp

private

Definition at line 117 of file ccidecom.hxx.

Referenced by CCIDecompressor(), and Read2DScanlineData().

std::array<CCILookUpTableEntry, 1<<13> CCIDecompressor::pWhiteLookUp

private

Definition at line 114 of file ccidecom.hxx.

Referenced by CCIDecompressor(), Read1DScanlineData(), and Read2DScanlineData().

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