deflate.h File Reference

#include "zutil.h"

Go to the source code of this file.

Classes
struct	ct_data_s
struct	tree_desc_s
struct	internal_state

Macros
#define	GZIP
#define	LENGTH_CODES   29
#define	LITERALS   256
#define	L_CODES   (LITERALS+1+LENGTH_CODES)
#define	D_CODES   30
#define	BL_CODES   19
#define	HEAP_SIZE   (2*L_CODES+1)
#define	MAX_BITS   15
#define	Buf_size   16
#define	INIT_STATE   42
#define	GZIP_STATE   57
#define	EXTRA_STATE   69
#define	NAME_STATE   73
#define	COMMENT_STATE   91
#define	HCRC_STATE   103
#define	BUSY_STATE   113
#define	FINISH_STATE   666
#define	Freq   fc.freq
#define	Code   fc.code
#define	Dad   dl.dad
#define	Len   dl.len
#define	max_insert_length   max_lazy_match
#define	LIT_BUFS   4
#define	put_byte(s, c)
#define	MIN_LOOKAHEAD   (MAX_MATCH+MIN_MATCH+1)
#define	MAX_DIST(s)
#define	WIN_INIT   MAX_MATCH
#define	d_code(dist)
#define	_tr_tally_lit(s, c, flush)
#define	_tr_tally_dist(s, distance, length, flush)

Typedefs
typedef struct ct_data_s	ct_data
typedef struct static_tree_desc_s	static_tree_desc
typedef struct tree_desc_s	tree_desc
typedef ush	Pos
typedef Pos FAR	Posf
typedef unsigned	IPos
typedef struct internal_state	deflate_state

Functions
void ZLIB_INTERNAL	_tr_init (deflate_state *s)
int ZLIB_INTERNAL	_tr_tally (deflate_state *s, unsigned dist, unsigned lc)
void ZLIB_INTERNAL	_tr_flush_block (deflate_state *s, charf *buf, ulg stored_len, int last)
void ZLIB_INTERNAL	_tr_flush_bits (deflate_state *s)
void ZLIB_INTERNAL	_tr_align (deflate_state *s)
void ZLIB_INTERNAL	_tr_stored_block (deflate_state *s, charf *buf, ulg stored_len, int last)

Variables
uch ZLIB_INTERNAL	_length_code []
uch ZLIB_INTERNAL	_dist_code []

Macro Definition Documentation

_tr_tally_dist

#define _tr_tally_dist	(		s,
			distance,
			length,
			flush )

Value:

{ uch len = (uch)(length); \
  ush dist = (ush)(distance); \
  s->sym_buf[s->sym_next++] = (uch)dist; \
  s->sym_buf[s->sym_next++] = (uch)(dist >> 8); \
  s->sym_buf[s->sym_next++] = len; \
  dist--; \
  s->dyn_ltree[_length_code[len]+LITERALS+1].Freq++; \
  s->dyn_dtree[d_code(dist)].Freq++; \
  flush = (s->sym_next == s->sym_end); \
}

Definition at line 363 of file deflate.h.

_tr_tally_lit

#define _tr_tally_lit	(		s,
			c,
			flush )

Value:

{ uch cc = (c); \
  s->sym_buf[s->sym_next++] = 0; \
  s->sym_buf[s->sym_next++] = 0; \
  s->sym_buf[s->sym_next++] = cc; \
  s->dyn_ltree[cc].Freq++; \
  flush = (s->sym_next == s->sym_end); \
 }

Definition at line 355 of file deflate.h.

BL_CODES

#define BL_CODES   19

Definition at line 50 of file deflate.h.

Buf_size

#define Buf_size   16

Definition at line 59 of file deflate.h.

BUSY_STATE

#define BUSY_STATE   113

Definition at line 70 of file deflate.h.

Code

#define Code   fc.code

Definition at line 88 of file deflate.h.

COMMENT_STATE

#define COMMENT_STATE   91

Definition at line 68 of file deflate.h.

d_code

#define d_code

(

dist

)

Value:

((dist) < 256 ? _dist_code[dist] : _dist_code[256+((dist)>>7)])

Definition at line 318 of file deflate.h.

D_CODES

#define D_CODES   30

Definition at line 47 of file deflate.h.

Dad

#define Dad   dl.dad

Definition at line 89 of file deflate.h.

EXTRA_STATE

#define EXTRA_STATE   69

Definition at line 66 of file deflate.h.

FINISH_STATE

#define FINISH_STATE   666

Definition at line 71 of file deflate.h.

Freq

#define Freq   fc.freq

Definition at line 87 of file deflate.h.

GZIP

#define GZIP

Definition at line 27 of file deflate.h.

GZIP_STATE

#define GZIP_STATE   57

Definition at line 64 of file deflate.h.

HCRC_STATE

#define HCRC_STATE   103

Definition at line 69 of file deflate.h.

HEAP_SIZE

#define HEAP_SIZE   (2*L_CODES+1)

Definition at line 53 of file deflate.h.

INIT_STATE

#define INIT_STATE   42

Definition at line 62 of file deflate.h.

L_CODES

#define L_CODES   (LITERALS+1+LENGTH_CODES)

Definition at line 44 of file deflate.h.

Len

#define Len   dl.len

Definition at line 90 of file deflate.h.

LENGTH_CODES

#define LENGTH_CODES   29

Definition at line 38 of file deflate.h.

LIT_BUFS

#define LIT_BUFS   4

Definition at line 233 of file deflate.h.

LITERALS

#define LITERALS   256

Definition at line 41 of file deflate.h.

MAX_BITS

#define MAX_BITS   15

Definition at line 56 of file deflate.h.

MAX_DIST

#define MAX_DIST

(

s

)

Value:

((s)->w_size-MIN_LOOKAHEAD)

Definition at line 299 of file deflate.h.

max_insert_length

#define max_insert_length   max_lazy_match

Definition at line 190 of file deflate.h.

MIN_LOOKAHEAD

#define MIN_LOOKAHEAD   (MAX_MATCH+MIN_MATCH+1)

Definition at line 294 of file deflate.h.

NAME_STATE

#define NAME_STATE   73

Definition at line 67 of file deflate.h.

put_byte

#define put_byte	(		s,
			c )

Value:

{s->pending_buf[s->pending++] = (Bytef)(c);}

Definition at line 291 of file deflate.h.

WIN_INIT

#define WIN_INIT   MAX_MATCH

Definition at line 304 of file deflate.h.

Typedef Documentation

IPos

typedef unsigned IPos

Definition at line 102 of file deflate.h.

Pos

typedef ush Pos

Definition at line 100 of file deflate.h.

Posf

typedef Pos FAR Posf

Definition at line 101 of file deflate.h.

static_tree_desc

typedef struct static_tree_desc_s static_tree_desc

Definition at line 92 of file deflate.h.

Function Documentation

_tr_align()

void ZLIB_INTERNAL _tr_align

(

deflate_state *

s

)

Definition at line 886 of file trees.c.

_tr_flush_bits()

void ZLIB_INTERNAL _tr_flush_bits

(

deflate_state *

s

)

Definition at line 878 of file trees.c.

_tr_flush_block()

void ZLIB_INTERNAL _tr_flush_block	(	deflate_state *	s,
		charf *	buf,
		ulg	stored_len,
		int	last )

Definition at line 995 of file trees.c.

_tr_init()

void ZLIB_INTERNAL _tr_init

(

deflate_state *

s

)

Definition at line 455 of file trees.c.

_tr_stored_block()

void ZLIB_INTERNAL _tr_stored_block	(	deflate_state *	s,
		charf *	buf,
		ulg	stored_len,
		int	last )

Definition at line 858 of file trees.c.

_tr_tally()

int ZLIB_INTERNAL _tr_tally	(	deflate_state *	s,
		unsigned	dist,
		unsigned	lc )

Definition at line 1093 of file trees.c.

Variable Documentation

_dist_code

uch ZLIB_INTERNAL _dist_code[]

extern

Definition at line 98 of file trees.c.

_length_code

uch ZLIB_INTERNAL _length_code[]

extern

Definition at line 104 of file trees.c.