deflate.h File Reference

#include "zutil.h"

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Classes
struct	ct_data_s
struct	tree_desc_s
struct	internal_state
Defines
#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	INIT_STATE   42
#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	put_byte(s, c)   {s->pending_buf[s->pending++] = (c);}
#define	MIN_LOOKAHEAD   (MAX_MATCH+MIN_MATCH+1)
#define	MAX_DIST(s)   ((s)->w_size-MIN_LOOKAHEAD)
#define	d_code(dist)   ((dist) < 256 ? _dist_code[dist] : _dist_code[256+((dist)>>7)])
#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 _tr_init	OF ((deflate_state *s))
int _tr_tally	OF ((deflate_state *s, unsigned dist, unsigned lc))
void _tr_flush_block	OF ((deflate_state *s, charf *buf, ulg stored_len, int eof))
Variables
uch	_length_code []
uch	_dist_code []

---

Define Documentation

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

Value:

{ uch len = (length); \
    ush dist = (distance); \
    s->d_buf[s->last_lit] = dist; \
    s->l_buf[s->last_lit++] = len; \
    dist--; \
    s->dyn_ltree[_length_code[len]+LITERALS+1].Freq++; \
    s->dyn_dtree[d_code(dist)].Freq++; \
    flush = (s->last_lit == s->lit_bufsize-1); \
  }

Definition at line 315 of file deflate.h.

Referenced by deflate_fast(), and deflate_slow().

#define _tr_tally_lit	(		s,
			c,
			flush
	)

Value:

{ uch cc = (c); \
    s->d_buf[s->last_lit] = 0; \
    s->l_buf[s->last_lit++] = cc; \
    s->dyn_ltree[cc].Freq++; \
    flush = (s->last_lit == s->lit_bufsize-1); \
   }

Definition at line 308 of file deflate.h.

Referenced by deflate_fast(), and deflate_slow().

#define BL_CODES   19

Definition at line 42 of file deflate.h.

Referenced by build_bl_tree(), init_block(), and send_all_trees().

#define BUSY_STATE   113

Definition at line 56 of file deflate.h.

Referenced by deflate(), deflateEnd(), and deflateReset().

#define Code   fc.code

Definition at line 74 of file deflate.h.

Referenced by gen_codes().

#define COMMENT_STATE   91

Definition at line 54 of file deflate.h.

Referenced by deflate(), and deflateEnd().

#define d_code

(

dist

)

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

Definition at line 290 of file deflate.h.

Referenced by _tr_tally(), and compress_block().

#define D_CODES   30

Definition at line 39 of file deflate.h.

Referenced by _tr_tally(), init_block(), and tr_static_init().

#define Dad   dl.dad

Definition at line 75 of file deflate.h.

#define EXTRA_STATE   69

Definition at line 52 of file deflate.h.

Referenced by deflate(), and deflateEnd().

#define FINISH_STATE   666

Definition at line 57 of file deflate.h.

Referenced by deflate(), deflateEnd(), and deflateInit2_().

#define Freq   fc.freq

Definition at line 73 of file deflate.h.

Referenced by build_tree().

#define GZIP

Definition at line 23 of file deflate.h.

#define HCRC_STATE   103

Definition at line 55 of file deflate.h.

Referenced by deflate(), and deflateEnd().

#define HEAP_SIZE   (2*L_CODES+1)

Definition at line 45 of file deflate.h.

Referenced by build_tree(), and gen_bitlen().

#define INIT_STATE   42

Definition at line 51 of file deflate.h.

Referenced by deflate(), deflateEnd(), deflateReset(), and deflateSetDictionary().

#define L_CODES   (LITERALS+1+LENGTH_CODES)

Definition at line 36 of file deflate.h.

Referenced by init_block(), and tr_static_init().

#define Len   dl.len

Definition at line 76 of file deflate.h.

Referenced by gen_bitlen().

#define LENGTH_CODES   29

Definition at line 30 of file deflate.h.

Referenced by tr_static_init().

#define LITERALS   256

Definition at line 33 of file deflate.h.

Referenced by _tr_tally(), and compress_block().

#define MAX_BITS   15

Definition at line 48 of file deflate.h.

Referenced by gen_bitlen(), gen_codes(), and tr_static_init().

#define MAX_DIST

(

s

)

((s)->w_size-MIN_LOOKAHEAD)

Definition at line 276 of file deflate.h.

Referenced by _tr_tally(), deflate_fast(), deflate_slow(), deflate_stored(), deflateSetDictionary(), fill_window(), and longest_match().

#define max_insert_length   max_lazy_match

Definition at line 176 of file deflate.h.

#define MIN_LOOKAHEAD   (MAX_MATCH+MIN_MATCH+1)

Definition at line 271 of file deflate.h.

#define NAME_STATE   73

Definition at line 53 of file deflate.h.

Referenced by deflate(), and deflateEnd().

#define put_byte	(		s,
			c
	)		{s->pending_buf[s->pending++] = (c);}

Definition at line 268 of file deflate.h.

Referenced by bi_flush(), bi_windup(), copy_block(), deflate(), and putShortMSB().

---

Typedef Documentation

typedef struct ct_data_s ct_data

typedef struct internal_state deflate_state

typedef unsigned IPos

Definition at line 88 of file deflate.h.

typedef ush Pos

Definition at line 86 of file deflate.h.

typedef Pos FAR Posf

Definition at line 87 of file deflate.h.

typedef struct static_tree_desc_s static_tree_desc

Definition at line 78 of file deflate.h.

typedef struct tree_desc_s tree_desc

---

Function Documentation

void _tr_init OF

(

(deflate_state *s)

)

void _tr_flush_block OF

(

(deflate_state *s, charf *buf, ulg stored_len, int eof)

)

int _tr_tally OF

(

(deflate_state *s, unsigned dist, unsigned lc)

)

---

Variable Documentation

uch _dist_code[]

Definition at line 102 of file trees.c.

Referenced by tr_static_init().

uch _length_code[]

Definition at line 108 of file trees.c.

Referenced by _tr_tally(), compress_block(), and tr_static_init().