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infback9
inflate9.h
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/* inflate9.h -- internal inflate state definition
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* Copyright (C) 1995-2003 Mark Adler
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* For conditions of distribution and use, see copyright notice in zlib.h
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*/
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/* WARNING: this file should *not* be used by applications. It is
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part of the implementation of the compression library and is
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subject to change. Applications should only use zlib.h.
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*/
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/* Possible inflate modes between inflate() calls */
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typedef
enum
{
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TYPE,
/* i: waiting for type bits, including last-flag bit */
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STORED,
/* i: waiting for stored size (length and complement) */
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TABLE,
/* i: waiting for dynamic block table lengths */
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LEN,
/* i: waiting for length/lit code */
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DONE,
/* finished check, done -- remain here until reset */
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BAD
/* got a data error -- remain here until reset */
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} inflate_mode;
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/*
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State transitions between above modes -
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(most modes can go to the BAD mode -- not shown for clarity)
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Read deflate blocks:
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TYPE -> STORED or TABLE or LEN or DONE
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STORED -> TYPE
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TABLE -> LENLENS -> CODELENS -> LEN
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Read deflate codes:
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LEN -> LEN or TYPE
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*/
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/* state maintained between inflate() calls. Approximately 7K bytes. */
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struct
inflate_state
{
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/* sliding window */
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unsigned
char
FAR *window;
/* allocated sliding window, if needed */
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/* dynamic table building */
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unsigned
ncode;
/* number of code length code lengths */
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unsigned
nlen;
/* number of length code lengths */
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unsigned
ndist;
/* number of distance code lengths */
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unsigned
have;
/* number of code lengths in lens[] */
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code
FAR *next;
/* next available space in codes[] */
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unsigned
short
lens[320];
/* temporary storage for code lengths */
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unsigned
short
work[288];
/* work area for code table building */
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code
codes[ENOUGH];
/* space for code tables */
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};
inflate_state
Definition:
inflate9.h:35
code
Definition:
inftree9.h:24
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