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zlib 1.2.2.3

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Mark Adler
2011-09-09 23:24:43 -07:00
parent 0484693e17
commit 6b8233bfe0
63 changed files with 11616 additions and 8906 deletions
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37
zlib.h
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@@ -1,7 +1,7 @@
/* zlib.h -- interface of the 'zlib' general purpose compression library
version 1.2.2.2, December 30th, 2004
version 1.2.2.3, May 27th, 2005
Copyright (C) 1995-2004 Jean-loup Gailly and Mark Adler
Copyright (C) 1995-2005 Jean-loup Gailly and Mark Adler
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
@@ -37,8 +37,8 @@
extern "C" {
#endif
#define ZLIB_VERSION "1.2.2.2"
#define ZLIB_VERNUM 0x1222
#define ZLIB_VERSION "1.2.2.3"
#define ZLIB_VERNUM 0x1223
/*
The 'zlib' compression library provides in-memory compression and
@@ -556,7 +556,9 @@ ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm,
deflateInit or deflateInit2, a part of the dictionary may in effect be
discarded, for example if the dictionary is larger than the window size in
deflate or deflate2. Thus the strings most likely to be useful should be
put at the end of the dictionary, not at the front.
put at the end of the dictionary, not at the front. In addition, the
current implementation of deflate will use at most the window size minus
262 bytes of the provided dictionary.
Upon return of this function, strm->adler is set to the adler32 value
of the dictionary; the decompressor may later use this value to determine
@@ -622,6 +624,23 @@ ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm,
if strm->avail_out was zero.
*/
ZEXTERN int ZEXPORT deflateTune OF((z_streamp strm,
int good_length,
int max_lazy,
int nice_length,
int max_chain));
/*
Fine tune deflate's internal compression parameters. This should only be
used by someone who understands the algorithm used by zlib's deflate for
searching for the best matching string, and even then only by the most
fanatic optimizer trying to squeeze out the last compressed bit for their
specific input data. Read the deflate.c source code for the meaning of the
max_lazy, good_length, nice_length, and max_chain parameters.
deflateTune() can be called after deflateInit() or deflateInit2(), and
returns Z_OK on success, or Z_STREAM_ERROR for an invalid deflate stream.
*/
ZEXTERN uLong ZEXPORT deflateBound OF((z_streamp strm,
uLong sourceLen));
/*
@@ -703,7 +722,7 @@ ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm,
windowBits can also be greater than 15 for optional gzip decoding. Add
32 to windowBits to enable zlib and gzip decoding with automatic header
detection, or add 16 to decode only the gzip format (the zlib format will
return a Z_DATA_ERROR. If a gzip stream is being decoded, strm->adler is
return a Z_DATA_ERROR). If a gzip stream is being decoded, strm->adler is
a crc32 instead of an adler32.
inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
@@ -1185,6 +1204,12 @@ ZEXTERN int ZEXPORT gzeof OF((gzFile file));
input stream, otherwise zero.
*/
ZEXTERN int ZEXPORT gzdirect OF((gzFile file));
/*
Returns 1 if file is being read directly without decompression, otherwise
zero.
*/
ZEXTERN int ZEXPORT gzclose OF((gzFile file));
/*
Flushes all pending output if necessary, closes the compressed file