FlateStream Class Reference

#include </home/clem/local/src/opie/noncore/unsupported/qpdf/xpdf/Stream.h>

Inheritance diagram for FlateStream:

[legend]Collaboration diagram for FlateStream:

[legend]List of all members.

Public Member Functions
	FlateStream (Stream *strA, int predictor, int columns, int colors, int bits)
virtual	~FlateStream ()
virtual StreamKind	getKind ()
virtual void	reset ()
virtual int	getChar ()
virtual int	lookChar ()
virtual int	getRawChar ()
virtual GString *	getPSFilter (char *indent)
virtual GBool	isBinary (GBool last=gTrue)
Private Member Functions
void	readSome ()
GBool	startBlock ()
void	loadFixedCodes ()
GBool	readDynamicCodes ()
void	compHuffmanCodes (FlateHuffmanTab *tab, int n)
int	getHuffmanCodeWord (FlateHuffmanTab *tab)
int	getCodeWord (int bits)
Private Attributes
StreamPredictor *	pred
Guchar	buf [flateWindow]
int	index
int	remain
int	codeBuf
int	codeSize
FlateCode	allCodes [flateMaxLitCodes+flateMaxDistCodes]
FlateHuffmanTab	litCodeTab
FlateHuffmanTab	distCodeTab
GBool	compressedBlock
int	blockLen
GBool	endOfBlock
GBool	eof
Static Private Attributes
static int	codeLenCodeMap [flateMaxCodeLenCodes]
static FlateDecode	lengthDecode [flateMaxLitCodes-257]
static FlateDecode	distDecode [flateMaxDistCodes]

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Constructor & Destructor Documentation

FlateStream::FlateStream (  Stream *  strA, int  predictor, int  columns, int  colors, int  bits )

Definition at line 2922 of file Stream.cc. References NULL, and pred.

FlateStream::~FlateStream (   )  [virtual]

Definition at line 2932 of file Stream.cc. References pred, and FilterStream::str.

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Member Function Documentation

void FlateStream::compHuffmanCodes (  FlateHuffmanTab *  tab, int  n )  [private]

Definition at line 3263 of file Stream.cc. References FlateCode::code, code, FlateHuffmanTab::codes, flateMaxHuffman, FlateCode::len, FlateHuffmanTab::start, and FlateCode::val. Referenced by loadFixedCodes(), and readDynamicCodes().

int FlateStream::getChar (   )  [virtual]

Implements Stream. Definition at line 2975 of file Stream.cc. References buf, endOfBlock, eof, flateMask, StreamPredictor::getChar(), index, pred, readSome(), and remain.

int FlateStream::getCodeWord (  int  bits  )  [private]

Definition at line 3335 of file Stream.cc. References codeBuf, codeSize, Stream::getChar(), and FilterStream::str. Referenced by readDynamicCodes(), readSome(), and startBlock().

int FlateStream::getHuffmanCodeWord (  FlateHuffmanTab *  tab  )  [private]

Definition at line 3301 of file Stream.cc. References FlateCode::code, code, codeBuf, FlateHuffmanTab::codes, codeSize, error(), flateMaxHuffman, Stream::getChar(), FilterStream::getPos(), len, FlateHuffmanTab::start, FilterStream::str, and FlateCode::val. Referenced by readDynamicCodes(), and readSome().

virtual StreamKind FlateStream::getKind (   )  [inline, virtual]

Implements Stream. Definition at line 625 of file Stream.h. References strFlate.

GString * FlateStream::getPSFilter (  char *  indent  )  [virtual]

Reimplemented from Stream. Definition at line 3021 of file Stream.cc. References NULL.

int FlateStream::getRawChar (   )  [virtual]

Reimplemented from Stream. Definition at line 3007 of file Stream.cc. References buf, endOfBlock, eof, flateMask, index, readSome(), and remain.

GBool FlateStream::isBinary (  GBool  last = gTrue  )  [virtual]

Implements Stream. Definition at line 3025 of file Stream.cc. References gTrue, Stream::isBinary(), and FilterStream::str.

void FlateStream::loadFixedCodes (   )  [private]

Definition at line 3150 of file Stream.cc. References allCodes, FlateCode::code, FlateHuffmanTab::codes, compHuffmanCodes(), distCodeTab, flateMaxDistCodes, flateMaxHuffman, flateMaxLitCodes, FlateCode::len, litCodeTab, FlateHuffmanTab::start, and FlateCode::val. Referenced by startBlock().

int FlateStream::lookChar (   )  [virtual]

Implements Stream. Definition at line 2992 of file Stream.cc. References buf, endOfBlock, eof, index, StreamPredictor::lookChar(), pred, readSome(), and remain.

GBool FlateStream::readDynamicCodes (   )  [private]

Definition at line 3182 of file Stream.cc. References allCodes, code, codeLenCodeMap, FlateHuffmanTab::codes, compHuffmanCodes(), distCodeTab, error(), flateMaxCodeLenCodes, flateMaxDistCodes, flateMaxLitCodes, getCodeWord(), getHuffmanCodeWord(), FilterStream::getPos(), gFalse, gTrue, FlateCode::len, len, litCodeTab, and repeat(). Referenced by startBlock().

void FlateStream::readSome (   )  [private]

Definition at line 3029 of file Stream.cc. References FlateDecode::bits, blockLen, buf, compressedBlock, distCodeTab, distDecode, endOfBlock, eof, error(), FlateDecode::first, flateMask, flateWindow, Stream::getChar(), getCodeWord(), getHuffmanCodeWord(), FilterStream::getPos(), gTrue, index, len, lengthDecode, litCodeTab, remain, startBlock(), and FilterStream::str. Referenced by getChar(), getRawChar(), and lookChar().

void FlateStream::reset (   )  [virtual]

Implements Stream. Definition at line 2939 of file Stream.cc. References codeBuf, codeSize, compressedBlock, endOfBlock, eof, error(), Stream::getChar(), FilterStream::getPos(), gFalse, gTrue, index, remain, Stream::reset(), and FilterStream::str.

GBool FlateStream::startBlock (   )  [private]

Definition at line 3094 of file Stream.cc. References blockLen, codeBuf, codeSize, compressedBlock, endOfBlock, eof, error(), Stream::getChar(), getCodeWord(), FilterStream::getPos(), gFalse, gTrue, loadFixedCodes(), readDynamicCodes(), and FilterStream::str. Referenced by readSome().

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Member Data Documentation

FlateCode FlateStream::allCodes[flateMaxLitCodes+flateMaxDistCodes] [private]

Definition at line 642 of file Stream.h. Referenced by loadFixedCodes(), and readDynamicCodes().

int FlateStream::blockLen [private]

Definition at line 646 of file Stream.h. Referenced by readSome(), and startBlock().

Guchar FlateStream::buf[flateWindow] [private]

Definition at line 636 of file Stream.h. Referenced by getChar(), getRawChar(), lookChar(), and readSome().

int FlateStream::codeBuf [private]

Definition at line 639 of file Stream.h. Referenced by getCodeWord(), getHuffmanCodeWord(), reset(), and startBlock().

int FlateStream::codeLenCodeMap [static, private]

Initial value: { 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 } Definition at line 2853 of file Stream.cc. Referenced by readDynamicCodes().

int FlateStream::codeSize [private]

Definition at line 640 of file Stream.h. Referenced by getCodeWord(), getHuffmanCodeWord(), reset(), and startBlock().

GBool FlateStream::compressedBlock [private]

Definition at line 645 of file Stream.h. Referenced by readSome(), reset(), and startBlock().

FlateHuffmanTab FlateStream::distCodeTab [private]

Definition at line 644 of file Stream.h. Referenced by loadFixedCodes(), readDynamicCodes(), and readSome().

FlateDecode FlateStream::distDecode [static, private]

Definition at line 2889 of file Stream.cc. Referenced by readSome().

GBool FlateStream::endOfBlock [private]

Definition at line 647 of file Stream.h. Referenced by getChar(), getRawChar(), lookChar(), readSome(), reset(), and startBlock().

GBool FlateStream::eof [private]

Definition at line 648 of file Stream.h. Referenced by getChar(), getRawChar(), lookChar(), readSome(), reset(), and startBlock().

int FlateStream::index [private]

Definition at line 637 of file Stream.h. Referenced by getChar(), getRawChar(), lookChar(), readSome(), and reset().

FlateDecode FlateStream::lengthDecode [static, private]

Definition at line 2857 of file Stream.cc. Referenced by readSome().

FlateHuffmanTab FlateStream::litCodeTab [private]

Definition at line 643 of file Stream.h. Referenced by loadFixedCodes(), readDynamicCodes(), and readSome().

StreamPredictor* FlateStream::pred [private]

Definition at line 635 of file Stream.h. Referenced by FlateStream(), getChar(), lookChar(), and ~FlateStream().

int FlateStream::remain [private]

Definition at line 638 of file Stream.h. Referenced by getChar(), getRawChar(), lookChar(), readSome(), and reset().

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

• noncore/unsupported/qpdf/xpdf/Stream.h
• noncore/unsupported/qpdf/xpdf/Stream.cc

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