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deflate.h File Reference
#include "zlib/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 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 WIN_INIT   MAX_MATCH
 
#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 last))
 

Variables

uch _length_code []
 
uch _dist_code []
 

Macro Definition 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 330 of file deflate.h.

#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 323 of file deflate.h.

#define BL_CODES   19

Definition at line 46 of file deflate.h.

#define BUSY_STATE   113

Definition at line 60 of file deflate.h.

#define Code   fc.code

Definition at line 78 of file deflate.h.

#define COMMENT_STATE   91

Definition at line 58 of file deflate.h.

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

Definition at line 305 of file deflate.h.

#define D_CODES   30

Definition at line 43 of file deflate.h.

#define Dad   dl.dad

Definition at line 79 of file deflate.h.

#define EXTRA_STATE   69

Definition at line 56 of file deflate.h.

#define FINISH_STATE   666

Definition at line 61 of file deflate.h.

#define Freq   fc.freq

Definition at line 77 of file deflate.h.

#define GZIP

Definition at line 27 of file deflate.h.

#define HCRC_STATE   103

Definition at line 59 of file deflate.h.

#define HEAP_SIZE   (2*L_CODES+1)

Definition at line 49 of file deflate.h.

#define INIT_STATE   42

Definition at line 55 of file deflate.h.

#define L_CODES   (LITERALS+1+LENGTH_CODES)

Definition at line 40 of file deflate.h.

#define Len   dl.len

Definition at line 80 of file deflate.h.

#define LENGTH_CODES   29

Definition at line 34 of file deflate.h.

#define LITERALS   256

Definition at line 37 of file deflate.h.

#define MAX_BITS   15

Definition at line 52 of file deflate.h.

#define MAX_DIST (   s)    ((s)->w_size-MIN_LOOKAHEAD)

Definition at line 287 of file deflate.h.

#define max_insert_length   max_lazy_match

Definition at line 180 of file deflate.h.

#define MIN_LOOKAHEAD   (MAX_MATCH+MIN_MATCH+1)

Definition at line 282 of file deflate.h.

#define NAME_STATE   73

Definition at line 57 of file deflate.h.

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

Definition at line 279 of file deflate.h.

#define WIN_INIT   MAX_MATCH

Definition at line 292 of file deflate.h.

Typedef Documentation

typedef struct ct_data_s ct_data
typedef struct internal_state deflate_state
typedef unsigned IPos

Definition at line 92 of file deflate.h.

typedef ush Pos

Definition at line 90 of file deflate.h.

typedef Pos FAR Posf

Definition at line 91 of file deflate.h.

Definition at line 82 of file deflate.h.

typedef struct tree_desc_s tree_desc

Function Documentation

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 last)  )

Variable Documentation

uch _dist_code[]

Definition at line 110 of file trees.c.

uch _length_code[]

Definition at line 116 of file trees.c.