#include "ZIP.h"

Include dependency graph for Bits.h:

This graph shows which files directly or indirectly include this file:

Classes
struct	bits_internal_state

Macros
#define	H_SHIFT ((HASH_BITS+MIN_MATCH-1)/MIN_MATCH)
#define	HASH_BITS 15
	Bits.h is a collection of function definitions for the historic compression algorithm used by ROOT.
#define	HASH_SIZE (unsigned)(1<<HASH_BITS)
#define	max_insert_length state->max_lazy_match

Typedefs
typedef unsigned	IPos
typedef ush	Pos

Functions
int	R__bi_init (bits_internal_state *state)
unsigned	R__bi_reverse (unsigned code, int len)
int	R__bi_windup (bits_internal_state *state)
int	R__copy_block (bits_internal_state state, char buf, unsigned len, int header)
int	R__Inflate (uch *ibufptr, long ibufcnt, uch *obufptr, long obufcnt)
	Decompress a deflated entry.
int	R__mem_read ()
ulg	R__memcompress (char tgt, ulg tgtsize, char src, ulg srcsize)
int	R__send_bits (bits_internal_state *state, int value, int length)

Macro Definition Documentation

◆ H_SHIFT

#define H_SHIFT ((HASH_BITS+MIN_MATCH-1)/MIN_MATCH)

Definition at line 133 of file Bits.h.

◆ HASH_BITS

#define HASH_BITS 15

Bits.h is a collection of function definitions for the historic compression algorithm used by ROOT.

This appears to have been a modified ZLIB-like algorithm.

As best as we can tell, this has not been used in 20+ years. Size of internal hash table.

Previously controlled by various macros which no longer exist.

Definition at line 27 of file Bits.h.

◆ HASH_SIZE

#define HASH_SIZE (unsigned)(1<<HASH_BITS)

Definition at line 28 of file Bits.h.

◆ max_insert_length

#define max_insert_length state->max_lazy_match

Definition at line 160 of file Bits.h.

Typedef Documentation

◆ IPos

typedef unsigned IPos

Definition at line 35 of file Bits.h.

◆ Pos

typedef ush Pos

Definition at line 33 of file Bits.h.

Function Documentation

◆ R__bi_init()

int R__bi_init ( bits_internal_state * state )

Definition at line 134 of file Bits.c.

◆ R__bi_reverse()

unsigned R__bi_reverse	(	unsigned	code,
		int	len )

Definition at line 181 of file Bits.c.

◆ R__bi_windup()

int R__bi_windup ( bits_internal_state * state )

Definition at line 217 of file Bits.c.

◆ R__copy_block()

int R__copy_block	(	bits_internal_state *	state,
		char *	buf,
		unsigned	len,
		int	header )

Definition at line 236 of file Bits.c.

◆ R__Inflate()

int R__Inflate	(	uch **	ibufptr,
		long *	ibufcnt,
		uch **	obufptr,
		long *	obufcnt )

Decompress a deflated entry.

Definition at line 1048 of file ZInflate.c.

◆ R__mem_read()

int R__mem_read ( )

◆ R__memcompress()

ulg R__memcompress	(	char *	tgt,
		ulg	tgtsize,
		char *	src,
		ulg	srcsize )

Definition at line 294 of file Bits.c.

◆ R__send_bits()

int R__send_bits	(	bits_internal_state *	state,
		int	value,
		int	length )

Definition at line 151 of file Bits.c.

Classes

Macros

Typedefs

Functions