GIFLZWDecompressor Class Reference

#include <decode.hxx>

Public Member Functions
	GIFLZWDecompressor (sal_uInt8 cDataSize)
	~GIFLZWDecompressor ()
Scanline	DecompressBlock (sal_uInt8 *pSrc, sal_uInt8 cBufSize, sal_uLong &rCount, bool &rEOI)

Private Member Functions
bool	AddToTable (sal_uInt16 nPrevCode, sal_uInt16 nCodeFirstData)
bool	ProcessOneCode ()
	GIFLZWDecompressor (const GIFLZWDecompressor &)=delete
GIFLZWDecompressor &	operator= (const GIFLZWDecompressor &)=delete

Private Attributes
std::unique_ptr< GIFLZWTableEntry[]>	pTable
std::array< sal_uInt8, 4096 >	pOutBuf
sal_uInt8 *	pOutBufData
sal_uInt8 *	pBlockBuf
sal_uLong	nInputBitsBuf
bool	bEOIFound
sal_uInt8	nDataSize
sal_uInt8	nBlockBufSize
sal_uInt8	nBlockBufPos
sal_uInt16	nClearCode
sal_uInt16	nEOICode
sal_uInt16	nTableSize
sal_uInt16	nCodeSize
sal_uInt16	nOldCode
sal_uInt16	nOutBufDataLen
sal_uInt16	nInputBitsBufSize

Detailed Description

Definition at line 29 of file decode.hxx.

Constructor & Destructor Documentation

GIFLZWDecompressor() [1/2]

GIFLZWDecompressor::GIFLZWDecompressor ( const GIFLZWDecompressor &  )

privatedelete

GIFLZWDecompressor() [2/2]

GIFLZWDecompressor::GIFLZWDecompressor ( sal_uInt8  cDataSize )

explicit

Definition at line 32 of file decode.cxx.

References i, nTableSize, and pTable.

~GIFLZWDecompressor()

GIFLZWDecompressor::~GIFLZWDecompressor

(

)

Definition at line 59 of file decode.cxx.

Member Function Documentation

AddToTable()

bool GIFLZWDecompressor::AddToTable ( sal_uInt16  nPrevCode, sal_uInt16  nCodeFirstData  )

private

Definition at line 111 of file decode.cxx.

References nCodeSize, GIFLZWTableEntry::nData, nTableSize, pE, and pTable.

Referenced by ProcessOneCode().

DecompressBlock()

Scanline GIFLZWDecompressor::DecompressBlock	(	sal_uInt8 *	pSrc,
		sal_uInt8	cBufSize,
		sal_uLong &	rCount,
		bool &	rEOI
	)

Definition at line 63 of file decode.cxx.

References bEOIFound, nBlockBufPos, nBlockBufSize, nCount, nOutBufDataLen, p, pBlockBuf, pOutBufData, and ProcessOneCode().

operator=()

GIFLZWDecompressor & GIFLZWDecompressor::operator= ( const GIFLZWDecompressor &  )

privatedelete

ProcessOneCode()

bool GIFLZWDecompressor::ProcessOneCode ( )

private

Definition at line 130 of file decode.cxx.

References AddToTable(), bEOIFound, nBlockBufPos, nBlockBufSize, nClearCode, nCodeSize, nDataSize, nEOICode, nInputBitsBuf, nInputBitsBufSize, nOldCode, nOutBufDataLen, nTableSize, pBlockBuf, pE, pOutBuf, pOutBufData, and pTable.

Referenced by DecompressBlock().

Member Data Documentation

bEOIFound

bool GIFLZWDecompressor::bEOIFound

private

Definition at line 38 of file decode.hxx.

Referenced by DecompressBlock(), and ProcessOneCode().

nBlockBufPos

sal_uInt8 GIFLZWDecompressor::nBlockBufPos

private

Definition at line 41 of file decode.hxx.

Referenced by DecompressBlock(), and ProcessOneCode().

nBlockBufSize

sal_uInt8 GIFLZWDecompressor::nBlockBufSize

private

Definition at line 40 of file decode.hxx.

Referenced by DecompressBlock(), and ProcessOneCode().

nClearCode

sal_uInt16 GIFLZWDecompressor::nClearCode

private

Definition at line 42 of file decode.hxx.

Referenced by ProcessOneCode().

nCodeSize

sal_uInt16 GIFLZWDecompressor::nCodeSize

private

Definition at line 45 of file decode.hxx.

Referenced by AddToTable(), and ProcessOneCode().

nDataSize

sal_uInt8 GIFLZWDecompressor::nDataSize

private

Definition at line 39 of file decode.hxx.

Referenced by ProcessOneCode().

nEOICode

sal_uInt16 GIFLZWDecompressor::nEOICode

private

Definition at line 43 of file decode.hxx.

Referenced by ProcessOneCode().

nInputBitsBuf

sal_uLong GIFLZWDecompressor::nInputBitsBuf

private

Definition at line 37 of file decode.hxx.

Referenced by ProcessOneCode().

nInputBitsBufSize

sal_uInt16 GIFLZWDecompressor::nInputBitsBufSize

private

Definition at line 48 of file decode.hxx.

Referenced by ProcessOneCode().

nOldCode

sal_uInt16 GIFLZWDecompressor::nOldCode

private

Definition at line 46 of file decode.hxx.

Referenced by ProcessOneCode().

nOutBufDataLen

sal_uInt16 GIFLZWDecompressor::nOutBufDataLen

private

Definition at line 47 of file decode.hxx.

Referenced by DecompressBlock(), and ProcessOneCode().

nTableSize

sal_uInt16 GIFLZWDecompressor::nTableSize

private

Definition at line 44 of file decode.hxx.

Referenced by AddToTable(), GIFLZWDecompressor(), and ProcessOneCode().

pBlockBuf

sal_uInt8* GIFLZWDecompressor::pBlockBuf

private

Definition at line 36 of file decode.hxx.

Referenced by DecompressBlock(), and ProcessOneCode().

pOutBuf

std::array<sal_uInt8, 4096> GIFLZWDecompressor::pOutBuf

private

Definition at line 34 of file decode.hxx.

Referenced by ProcessOneCode().

pOutBufData

sal_uInt8* GIFLZWDecompressor::pOutBufData

private

Definition at line 35 of file decode.hxx.

Referenced by DecompressBlock(), and ProcessOneCode().

pTable

std::unique_ptr<GIFLZWTableEntry[]> GIFLZWDecompressor::pTable

private

Definition at line 32 of file decode.hxx.

Referenced by AddToTable(), GIFLZWDecompressor(), and ProcessOneCode().

---

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

• decode.hxx
• decode.cxx