us_gzip.cpp File Reference

#include <QFileInfo>
#include <QDataStream>
#include <QDateTime>
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <fcntl.h>
#include <utime.h>
#include <sys/stat.h>
#include <iostream>
#include "us_gzip.h"

Include dependency graph for us_gzip.cpp:

Go to the source code of this file.

Namespaces
namespace	gzip_data

Macros
#define	O_BINARY   0
#define	wp   outcnt
#define	GETBYTE()   (inptr < insize ? inbuf[inptr++] : (wp = w, fill_inbuf(0)))
#define	flush_output(w)   (wp=(w),flush_window())
#define	put_byte(c)
#define	put_short(w)
#define	put_long(n)
#define	GZIP_MAGIC   "\037\213" /* Magic header for gzip files, 1F 8B */
#define	DEFLATED   8
#define	ORIG_NAME   0x08 /* bit 3 set: original file name present */
#define	SLOW   2
#define	OS_CODE   0x03
#define	slide   window
#define	NEXTBYTE()   (uch)GETBYTE()
#define	NEEDBITS(n)   {while(k<(n)){b|=((ulg)NEXTBYTE())<<k;k+=8;}}
#define	DUMPBITS(n)   {b>>=(n);k-=(n);}
#define	lbits   9
#define	dbits   6
#define	BMAX   16 /* maximum bit length of any code (16 for explode) */
#define	N_MAX   288 /* maximum number of codes in any set */
#define	memzero(s, n)   bzero((s), (n))
#define	PATH_SEP   '/'
#define	HASH_BITS   15
#define	MIN_LOOKAHEAD   ( MAX_MATCH + MIN_MATCH + 1 )
#define	MAX_DIST   ( WSIZE - MIN_LOOKAHEAD )
#define	HASH_SIZE   (unsigned) ( 1 << HASH_BITS )
#define	HASH_MASK   ( HASH_SIZE - 1 )
#define	WMASK   ( WSIZE - 1 )
#define	H_SHIFT   ( (HASH_BITS + MIN_MATCH - 1) / MIN_MATCH )
#define	UPDATE_HASH(h, c)   ( h = ( ( (h) << H_SHIFT ) ^ (c)) & HASH_MASK )
#define	INSERT_STRING(s, match_head)
#define	FLUSH_BLOCK(eof)
#define	TOO_FAR   4096
#define	pack_level   9
#define	d_code(dist)   ( (dist) < 256 ? dist_code[ dist ] : dist_code[ 256 + ( ( dist ) >> 7 ) ] )
#define	STORED_BLOCK   0
#define	STORED   STORED_BLOCK
#define	STATIC_TREES   1
#define	DYN_TREES   2
#define	level   9
#define	seekable()   0 /* force sequential output */
#define	send_code(c, tree)   send_bits( tree[ c ].Code, tree[ c ].Len )
#define	l_buf   inbuf
#define	SMALLEST   1
#define	pqremove(tree, top)
#define	MAX(a, b)   ( a >= b ? a : b )
#define	smaller(tree, n, m)
#define	REP_3_6   16
#define	REPZ_3_10   17
#define	REPZ_11_138   18

Variables
ulg	gzip_data::crc_32_tab []
unsigned	gzip_data::border []
ush	gzip_data::cplens []
ush	gzip_data::cplext []
ush	gzip_data::cpdist []
ush	gzip_data::cpdext []
ush	gzip_data::mask_bits []
US_Gzip::config	gzip_data::configuration_table []
int	gzip_data::extra_lbits []
int	gzip_data::extra_dbits []
int	gzip_data::extra_blbits []
unsigned char	gzip_data::bl_order []

Macro Definition Documentation

#define BMAX   16 /* maximum bit length of any code (16 for explode) */

Definition at line 806 of file us_gzip.cpp.

#define d_code

(

dist

)

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

Definition at line 2207 of file us_gzip.cpp.

#define dbits   6

Definition at line 803 of file us_gzip.cpp.

#define DEFLATED   8

#define DUMPBITS

(

n

)

{b>>=(n);k-=(n);}

Definition at line 755 of file us_gzip.cpp.

#define DYN_TREES   2

Definition at line 2216 of file us_gzip.cpp.

#define FLUSH_BLOCK

(

eof

)

Value:

flush_block( block_start >= 0L ? (char*) &window[ (unsigned) block_start ] : \
                   (char*) NULL, (long) strstart - block_start, (eof) )

Definition at line 1759 of file us_gzip.cpp.

#define flush_output

(

w

)

(wp=(w),flush_window())

#define GETBYTE

(

)

(inptr < insize ? inbuf[inptr++] : (wp = w, fill_inbuf(0)))

#define GZIP_MAGIC   "\037\213" /* Magic header for gzip files, 1F 8B */

#define H_SHIFT   ( (HASH_BITS + MIN_MATCH - 1) / MIN_MATCH )

Definition at line 1726 of file us_gzip.cpp.

#define HASH_BITS   15

Definition at line 1708 of file us_gzip.cpp.

#define HASH_MASK   ( HASH_SIZE - 1 )

Definition at line 1720 of file us_gzip.cpp.

#define HASH_SIZE   (unsigned) ( 1 << HASH_BITS )

Definition at line 1719 of file us_gzip.cpp.

#define INSERT_STRING	(		s,
			match_head
	)

Value:

( UPDATE_HASH( ins_h, window[ (s) + MIN_MATCH - 1 ] ), \
                  prev[ (s) & WMASK ] = match_head = head[ ins_h ], \
                  head[ ins_h ] = (s) )

Definition at line 1750 of file us_gzip.cpp.

#define l_buf   inbuf

Definition at line 2520 of file us_gzip.cpp.

#define lbits   9

Definition at line 801 of file us_gzip.cpp.

#define level   9

#define MAX	(		a,
			b
	)		( a >= b ? a : b )

Definition at line 2683 of file us_gzip.cpp.

#define MAX_DIST   ( WSIZE - MIN_LOOKAHEAD )

Definition at line 1715 of file us_gzip.cpp.

#define memzero	(		s,
			n
	)		bzero((s), (n))

Definition at line 812 of file us_gzip.cpp.

#define MIN_LOOKAHEAD   ( MAX_MATCH + MIN_MATCH + 1 )

Definition at line 1711 of file us_gzip.cpp.

#define N_MAX   288 /* maximum number of codes in any set */

Definition at line 807 of file us_gzip.cpp.

#define NEEDBITS

(

n

)

{while(k<(n)){b|=((ulg)NEXTBYTE())<<k;k+=8;}}

Definition at line 727 of file us_gzip.cpp.

#define NEXTBYTE

(

)

(uch)GETBYTE()

Definition at line 724 of file us_gzip.cpp.

#define O_BINARY   0

Definition at line 42 of file us_gzip.cpp.

#define ORIG_NAME   0x08 /* bit 3 set: original file name present */

#define OS_CODE   0x03

#define pack_level   9

#define PATH_SEP   '/'

Definition at line 1666 of file us_gzip.cpp.

#define pqremove	(		tree,
			top
	)

Value:

{\
  top              = heap[ SMALLEST ]; \
  heap[ SMALLEST ] = heap[ heap_len--] ; \
  pqdownheap( tree, SMALLEST ); \
}

Definition at line 2676 of file us_gzip.cpp.

#define put_byte

(

c

)

Value:

{ \
      outbuf[ outcnt++ ] = (uch)(c); \
      if ( outcnt == OUTBUFSIZ ) flush_outbuf();\
    }

#define put_long

(

n

)

Value:

{ \
      put_short( (n) & 0xffff ); \
      put_short( ( (ulg) (n) ) >> 16) ; \
    }

#define put_short

(

w

)

Value:

{ \
    if ( outcnt < OUTBUFSIZ-2 ) \
    { \
      outbuf[ outcnt++ ] = (uch) ((w) & 0xff); \
      outbuf[ outcnt++ ] = (uch) ((ush)(w) >> 8); \
    } \
    else \
    { \
      put_byte( (uch) ( (w) & 0xff) ); \
      put_byte( (uch) ( (ush) (w) >> 8 ) ); \
     } \
    }

#define REP_3_6   16

Definition at line 3020 of file us_gzip.cpp.

#define REPZ_11_138   18

Definition at line 3026 of file us_gzip.cpp.

#define REPZ_3_10   17

Definition at line 3023 of file us_gzip.cpp.

#define seekable

(

)

0 /* force sequential output */

#define send_code	(		c,
			tree
	)		send_bits( tree[ c ].Code, tree[ c ].Len )

Definition at line 2517 of file us_gzip.cpp.

#define slide   window

Definition at line 673 of file us_gzip.cpp.

#define SLOW   2

#define smaller	(		tree,
			n,
			m
	)

Value:

( tree[ n ].Freq < tree[ m ].Freq || \
     ( tree[ n ].Freq == tree[ m ].Freq && depth[ n ] <= depth[ m ] ) )

Definition at line 2962 of file us_gzip.cpp.

#define SMALLEST   1

Definition at line 2670 of file us_gzip.cpp.

#define STATIC_TREES   1

Definition at line 2215 of file us_gzip.cpp.

#define STORED   STORED_BLOCK

Definition at line 2214 of file us_gzip.cpp.

#define STORED_BLOCK   0

Definition at line 2213 of file us_gzip.cpp.

#define TOO_FAR   4096

#define UPDATE_HASH	(		h,
			c
	)		( h = ( ( (h) << H_SHIFT ) ^ (c)) & HASH_MASK )

Definition at line 1739 of file us_gzip.cpp.

#define WMASK   ( WSIZE - 1 )

Definition at line 1721 of file us_gzip.cpp.

#define wp   outcnt