idCompressor_Arithmetic Class Reference

Inheritance diagram for idCompressor_Arithmetic:

Classes
struct	acProbs_s
struct	acSymbol_s

Public Member Functions
	idCompressor_Arithmetic (void)
void	Init (idFile *f, bool compress, int wordLength)
void	FinishCompress (void)
int	Write (const void *inData, int inLength)
int	Read (void *outData, int outLength)
Public Member Functions inherited from idCompressor_BitStream
	idCompressor_BitStream (void)
float	GetCompressionRatio (void) const
Public Member Functions inherited from idCompressor_None
	idCompressor_None (void)
const char *	GetName (void)
const char *	GetFullPath (void)
int	Length (void)
ID_TIME_T	Timestamp (void)
int	Tell (void)
void	ForceFlush (void)
void	Flush (void)
int	Seek (long offset, fsOrigin_t origin)
Public Member Functions inherited from idFile
virtual	~idFile (void)
virtual void	Rewind (void)
virtual int	Printf (const char *fmt,...) id_attribute((format(printf
virtual int virtual int	VPrintf (const char *fmt, va_list arg)
virtual int	WriteFloatString (const char *fmt,...) id_attribute((format(printf
virtual int virtual int	ReadInt (int &value)
virtual int	ReadUnsignedInt (unsigned int &value)
virtual int	ReadShort (short &value)
virtual int	ReadUnsignedShort (unsigned short &value)
virtual int	ReadChar (char &value)
virtual int	ReadUnsignedChar (unsigned char &value)
virtual int	ReadFloat (float &value)
virtual int	ReadBool (bool &value)
virtual int	ReadString (idStr &string)
virtual int	ReadVec2 (idVec2 &vec)
virtual int	ReadVec3 (idVec3 &vec)
virtual int	ReadVec4 (idVec4 &vec)
virtual int	ReadVec6 (idVec6 &vec)
virtual int	ReadMat3 (idMat3 &mat)
virtual int	WriteInt (const int value)
virtual int	WriteUnsignedInt (const unsigned int value)
virtual int	WriteShort (const short value)
virtual int	WriteUnsignedShort (unsigned short value)
virtual int	WriteChar (const char value)
virtual int	WriteUnsignedChar (const unsigned char value)
virtual int	WriteFloat (const float value)
virtual int	WriteBool (const bool value)
virtual int	WriteString (const char *string)
virtual int	WriteVec2 (const idVec2 &vec)
virtual int	WriteVec3 (const idVec3 &vec)
virtual int	WriteVec4 (const idVec4 &vec)
virtual int	WriteVec6 (const idVec6 &vec)
virtual int	WriteMat3 (const idMat3 &mat)

Private Types
typedef struct idCompressor_Arithmetic::acProbs_s	acProbs_t
typedef struct idCompressor_Arithmetic::acSymbol_s	acSymbol_t

Private Member Functions
void	InitProbabilities (void)
void	UpdateProbabilities (acSymbol_t *symbol)
int	ProbabilityForCount (unsigned int count)
void	CharToSymbol (byte c, acSymbol_t *symbol)
void	EncodeSymbol (acSymbol_t *symbol)
int	SymbolFromCount (unsigned int count, acSymbol_t *symbol)
int	GetCurrentCount (void)
void	RemoveSymbolFromStream (acSymbol_t *symbol)
void	PutBit (int bit)
int	GetBit (void)
void	WriteOverflowBits (void)

Private Attributes
acProbs_t	probabilities [1<< AC_WORD_LENGTH]
int	symbolBuffer
int	symbolBit
unsigned short	low
unsigned short	high
unsigned short	code
unsigned int	underflowBits
unsigned int	scale

Additional Inherited Members
Static Public Member Functions inherited from idCompressor
static idCompressor *	AllocNoCompression (void)
static idCompressor *	AllocBitStream (void)
static idCompressor *	AllocRunLength (void)
static idCompressor *	AllocRunLength_ZeroBased (void)
static idCompressor *	AllocHuffman (void)
static idCompressor *	AllocArithmetic (void)
static idCompressor *	AllocLZSS (void)
static idCompressor *	AllocLZSS_WordAligned (void)
static idCompressor *	AllocLZW (void)
Protected Member Functions inherited from idCompressor_BitStream
void	InitCompress (const void *inData, const int inLength)
void	InitDecompress (void *outData, int outLength)
void	WriteBits (int value, int numBits)
int	ReadBits (int numBits)
void	UnreadBits (int numBits)
int	Compare (const byte *src1, int bitPtr1, const byte *src2, int bitPtr2, int maxBits) const
Protected Attributes inherited from idCompressor_BitStream
byte	buffer [65536]
int	wordLength
int	readTotalBytes
int	readLength
int	readByte
int	readBit
const byte *	readData
int	writeTotalBytes
int	writeLength
int	writeByte
int	writeBit
byte *	writeData
Protected Attributes inherited from idCompressor_None
idFile *	file
bool	compress

Detailed Description

Definition at line 1378 of file Compressor.cpp.

Member Typedef Documentation

typedef struct idCompressor_Arithmetic::acProbs_s idCompressor_Arithmetic::acProbs_t

private

typedef struct idCompressor_Arithmetic::acSymbol_s idCompressor_Arithmetic::acSymbol_t

private

Constructor & Destructor Documentation

idCompressor_Arithmetic::idCompressor_Arithmetic ( void  )

inline

Definition at line 1380 of file Compressor.cpp.

Member Function Documentation

void idCompressor_Arithmetic::CharToSymbol ( byte  c, acSymbol_t *  symbol  )

private

Definition at line 1649 of file Compressor.cpp.

void idCompressor_Arithmetic::EncodeSymbol ( acSymbol_t *  symbol )

private

Definition at line 1609 of file Compressor.cpp.

void idCompressor_Arithmetic::FinishCompress ( void  )

virtual

Reimplemented from idCompressor_BitStream.

Definition at line 1729 of file Compressor.cpp.

int idCompressor_Arithmetic::GetBit ( void  )

private

Definition at line 1587 of file Compressor.cpp.

int idCompressor_Arithmetic::GetCurrentCount ( void  )

private

Definition at line 1485 of file Compressor.cpp.

void idCompressor_Arithmetic::Init ( idFile *  f, bool  compress, int  wordLength  )

virtual

Reimplemented from idCompressor_BitStream.

Definition at line 1434 of file Compressor.cpp.

void idCompressor_Arithmetic::InitProbabilities ( void  )

private

Definition at line 1446 of file Compressor.cpp.

int idCompressor_Arithmetic::ProbabilityForCount ( unsigned int  count )

private

Definition at line 1494 of file Compressor.cpp.

void idCompressor_Arithmetic::PutBit ( int  bit )

private

Definition at line 1660 of file Compressor.cpp.

int idCompressor_Arithmetic::Read ( void *  outData, int  outLength  )

virtual

Reimplemented from idCompressor_BitStream.

Definition at line 1744 of file Compressor.cpp.

void idCompressor_Arithmetic::RemoveSymbolFromStream ( acSymbol_t *  symbol )

private

Definition at line 1554 of file Compressor.cpp.

int idCompressor_Arithmetic::SymbolFromCount ( unsigned int  count, acSymbol_t *  symbol  )

private

Definition at line 1541 of file Compressor.cpp.

void idCompressor_Arithmetic::UpdateProbabilities ( acSymbol_t *  symbol )

private

Definition at line 1465 of file Compressor.cpp.

int idCompressor_Arithmetic::Write ( const void *  inData, int  inLength  )

virtual

Reimplemented from idCompressor_BitStream.

Definition at line 1695 of file Compressor.cpp.

void idCompressor_Arithmetic::WriteOverflowBits ( void  )

private

Definition at line 1680 of file Compressor.cpp.

Member Data Documentation

unsigned short idCompressor_Arithmetic::code

private

Definition at line 1407 of file Compressor.cpp.

unsigned short idCompressor_Arithmetic::high

private

Definition at line 1406 of file Compressor.cpp.

unsigned short idCompressor_Arithmetic::low

private

Definition at line 1405 of file Compressor.cpp.

acProbs_t idCompressor_Arithmetic::probabilities[1<< AC_WORD_LENGTH]

private

Definition at line 1400 of file Compressor.cpp.

unsigned int idCompressor_Arithmetic::scale

private

Definition at line 1409 of file Compressor.cpp.

int idCompressor_Arithmetic::symbolBit

private

Definition at line 1403 of file Compressor.cpp.

int idCompressor_Arithmetic::symbolBuffer

private

Definition at line 1402 of file Compressor.cpp.

unsigned int idCompressor_Arithmetic::underflowBits

private

Definition at line 1408 of file Compressor.cpp.

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

• neo/framework/Compressor.cpp