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deflate.c File Reference

#include "deflate.h"

Compounds
struct	config_s
struct	static_tree_desc_s
Defines
#define	NIL   0
#define	TOO_FAR   4096
#define	MIN_LOOKAHEAD   (MAX_MATCH+MIN_MATCH+1)
#define	EQUAL   0
#define	UPDATE_HASH(s, h, c)   (h = (((h)<<s->hash_shift) ^ (c)) & s->hash_mask)
#define	INSERT_STRING(s, str, match_head)
#define	CLEAR_HASH(s)
#define	check_match(s, start, match, length)
#define	FLUSH_BLOCK_ONLY(s, eof)
#define	FLUSH_BLOCK(s, eof)
Typedefs
typedef block_state compress_func	OF ((deflate_state *s, int flush))
typedef config_s	config
Enumerations
enum	block_state { need_more, block_done, finish_started, finish_done }
Functions
local void fill_window	OF ((deflate_state *s))
local block_state deflate_stored	OF ((deflate_state *s, int flush))
local void putShortMSB	OF ((deflate_state *s, uInt b))
local void flush_pending	OF ((z_streamp strm))
local int read_buf	OF ((z_streamp strm, Bytef *buf, unsigned size))
local uInt longest_match	OF ((deflate_state *s, IPos cur_match))
int ZEXPORT	deflateInit_ (strm, level, version, stream_size) z_streamp strm
Variables
const char	deflate_copyright []
local const config	configuration_table [10]
int	level
const char *	version
int	stream_size
int	method
int	windowBits
int	memLevel
int	strategy
const Bytef *	dictionary
uInt	dictLength
int	bits
int	value
uLong	sourceLen
uInt	b
int	flush
z_streamp	source
Bytef *	buf
unsigned	size
IPos	cur_match

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Define Documentation

#define check_match (  s, start, match, length    )

#define CLEAR_HASH (  s    )

Value: s->head[s->hash_size-1] = NIL; \ zmemzero((Bytef *)s->head, (unsigned)(s->hash_size-1)*sizeof(*s->head));

#define EQUAL   0

#define FLUSH_BLOCK (  s, eof    )

Value: { \ FLUSH_BLOCK_ONLY(s, eof); \ if (s->strm->avail_out == 0) return (eof) ? finish_started : need_more; \ }

#define FLUSH_BLOCK_ONLY (  s, eof    )

Value: { \ _tr_flush_block(s, (s->block_start >= 0L ? \ (charf *)&s->window[(unsigned)s->block_start] : \ (charf *)Z_NULL), \ (ulg)((long)s->strstart - s->block_start), \ (eof)); \ s->block_start = s->strstart; \ flush_pending(s->strm); \ Tracev((stderr,"[FLUSH]")); \ }

#define INSERT_STRING (  s, str, match_head    )

Value: (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \ match_head = s->prev[(str) & s->w_mask] = s->head[s->ins_h], \ s->head[s->ins_h] = (Pos)(str))

#define MIN_LOOKAHEAD   (MAX_MATCH+MIN_MATCH+1)

#define NIL   0

#define TOO_FAR   4096

#define UPDATE_HASH (  s, h, c    )     (h = (((h)<<s->hash_shift) ^ (c)) & s->hash_mask)

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Typedef Documentation

typedef struct config_s config

typedef block_state compress_func OF((deflate_state *s, int flush))

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Enumeration Type Documentation

enum block_state

Enumeration values: need_more  block_done  finish_started  finish_done

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Function Documentation

int ZEXPORT deflateInit_ (  strm   , level   , version   , stream_size    )

local uInt longest_match OF (  (deflate_state *s, IPos cur_match)    )

local int read_buf OF (  (z_streamp strm, Bytef *buf, unsigned size)    )

local void flush_pending OF (  (z_streamp strm)    )

local void putShortMSB OF (  (deflate_state *s, uInt b)    )

local block_state deflate_stored OF (  (deflate_state *s, int flush)    )

local void fill_window OF (  (deflate_state *s)    )

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Variable Documentation

uInt b

int bits

Bytef* buf

local const config configuration_table[10]

Initial value: { {0, 0, 0, 0, deflate_stored}, {4, 4, 8, 4, deflate_fast}, {4, 5, 16, 8, deflate_fast}, {4, 6, 32, 32, deflate_fast}, {4, 4, 16, 16, deflate_slow}, {8, 16, 32, 32, deflate_slow}, {8, 16, 128, 128, deflate_slow}, {8, 32, 128, 256, deflate_slow}, {32, 128, 258, 1024, deflate_slow}, {32, 258, 258, 4096, deflate_slow}}

IPos cur_match

const char deflate_copyright[]

Initial value: " deflate 1.2.1 Copyright 1995-2003 Jean-loup Gailly "

const Bytef* dictionary

uInt dictLength

int flush

int level

int memLevel

int method

yy_size_t size

z_streamp source

uLong sourceLen

int strategy

int stream_size

int value

const char * version

int windowBits

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