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zlib
inftrees.h
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/* inftrees.h -- header to use inftrees.c
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* Copyright (C) 1995-2002 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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/* Huffman code lookup table entry--this entry is four bytes for machines
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that have 16-bit pointers (e.g. PC's in the small or medium model). */
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typedef
struct
inflate_huft_s
FAR inflate_huft;
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struct
inflate_huft_s
{
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union
{
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struct
{
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Byte Exop;
/* number of extra bits or operation */
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Byte Bits;
/* number of bits in this code or subcode */
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} what;
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uInt pad;
/* pad structure to a power of 2 (4 bytes for */
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} word;
/* 16-bit, 8 bytes for 32-bit int's) */
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uInt base;
/* literal, length base, distance base,
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or table offset */
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};
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/* Maximum size of dynamic tree. The maximum found in a long but non-
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exhaustive search was 1004 huft structures (850 for length/literals
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and 154 for distances, the latter actually the result of an
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exhaustive search). The actual maximum is not known, but the
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value below is more than safe. */
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#define MANY 1440
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extern
int
zlib_inflate_trees_bits OF((
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uIntf *,
/* 19 code lengths */
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uIntf *,
/* bits tree desired/actual depth */
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inflate_huft * FAR *,
/* bits tree result */
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inflate_huft *,
/* space for trees */
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z_streamp));
/* for messages */
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extern
int
zlib_inflate_trees_dynamic OF((
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uInt,
/* number of literal/length codes */
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uInt,
/* number of distance codes */
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uIntf *,
/* that many (total) code lengths */
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uIntf *,
/* literal desired/actual bit depth */
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uIntf *,
/* distance desired/actual bit depth */
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inflate_huft * FAR *,
/* literal/length tree result */
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inflate_huft * FAR *,
/* distance tree result */
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inflate_huft *,
/* space for trees */
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z_streamp));
/* for messages */
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extern
int
zlib_inflate_trees_fixed OF((
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uIntf *,
/* literal desired/actual bit depth */
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uIntf *,
/* distance desired/actual bit depth */
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inflate_huft * FAR *,
/* literal/length tree result */
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inflate_huft * FAR *,
/* distance tree result */
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z_streamp));
/* for memory allocation */
inflate_huft_s
Definition:
inftrees.h:16
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