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deflate.h File Reference
#include "zutil.h"
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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 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 []
 

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 309 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 302 of file deflate.h.

#define BL_CODES   19

Definition at line 42 of file deflate.h.

#define BUSY_STATE   113

Definition at line 52 of file deflate.h.

#define Code   fc.code

Definition at line 70 of file deflate.h.

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

Definition at line 284 of file deflate.h.

#define D_CODES   30

Definition at line 39 of file deflate.h.

#define Dad   dl.dad

Definition at line 71 of file deflate.h.

#define FINISH_STATE   666

Definition at line 53 of file deflate.h.

#define Freq   fc.freq

Definition at line 69 of file deflate.h.

#define GZIP

Definition at line 23 of file deflate.h.

#define HEAP_SIZE   (2*L_CODES+1)

Definition at line 45 of file deflate.h.

#define INIT_STATE   42

Definition at line 51 of file deflate.h.

#define L_CODES   (LITERALS+1+LENGTH_CODES)

Definition at line 36 of file deflate.h.

#define Len   dl.len

Definition at line 72 of file deflate.h.

#define LENGTH_CODES   29

Definition at line 30 of file deflate.h.

#define LITERALS   256

Definition at line 33 of file deflate.h.

#define MAX_BITS   15

Definition at line 48 of file deflate.h.

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

Definition at line 270 of file deflate.h.

#define max_insert_length   max_lazy_match

Definition at line 170 of file deflate.h.

#define MIN_LOOKAHEAD   (MAX_MATCH+MIN_MATCH+1)

Definition at line 265 of file deflate.h.

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

Definition at line 262 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 84 of file deflate.h.

typedef ush Pos

Definition at line 82 of file deflate.h.

typedef Pos FAR Posf

Definition at line 83 of file deflate.h.

Definition at line 74 of file deflate.h.

typedef struct tree_desc_s tree_desc

Function Documentation

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)  )

Variable Documentation

uch _dist_code[]

Definition at line 73 of file trees.h.

uch _length_code[]

Definition at line 102 of file trees.h.