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zlib 1.2.2.2

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This commit is contained in:
Mark Adler
2011-09-09 23:24:33 -07:00
parent 9811b53dd9
commit 0484693e17
39 changed files with 2178 additions and 177 deletions
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25
zlib.h
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@@ -1,5 +1,5 @@
/* zlib.h -- interface of the 'zlib' general purpose compression library
version 1.2.2.1, October 31st, 2004
version 1.2.2.2, December 30th, 2004
Copyright (C) 1995-2004 Jean-loup Gailly and Mark Adler
@@ -37,8 +37,8 @@
extern "C" {
#endif
#define ZLIB_VERSION "1.2.2.1"
#define ZLIB_VERNUM 0x1221
#define ZLIB_VERSION "1.2.2.2"
#define ZLIB_VERNUM 0x1222
/*
The 'zlib' compression library provides in-memory compression and
@@ -189,6 +189,7 @@ typedef gz_header FAR *gz_headerp;
#define Z_FILTERED 1
#define Z_HUFFMAN_ONLY 2
#define Z_RLE 3
#define Z_FIXED 4
#define Z_DEFAULT_STRATEGY 0
/* compression strategy; see deflateInit2() below for details */
@@ -391,11 +392,11 @@ ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush));
The flush parameter of inflate() can be Z_NO_FLUSH, Z_SYNC_FLUSH,
Z_FINISH, or Z_BLOCK. Z_SYNC_FLUSH requests that inflate() flush as much
output as possible to the output buffer. Z_BLOCK requests that inflate() stop
if and when it get to the next deflate block boundary. When decoding the zlib
or gzip format, this will cause inflate() to return immediately after the
header and before the first block. When doing a raw inflate, inflate() will
go ahead and process the first block, and will return when it gets to the end
of that block, or when it runs out of data.
if and when it gets to the next deflate block boundary. When decoding the
zlib or gzip format, this will cause inflate() to return immediately after
the header and before the first block. When doing a raw inflate, inflate()
will go ahead and process the first block, and will return when it gets to
the end of that block, or when it runs out of data.
The Z_BLOCK option assists in appending to or combining deflate streams.
Also to assist in this, on return inflate() will set strm->data_type to the
@@ -524,7 +525,9 @@ ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm,
Z_DEFAULT and Z_HUFFMAN_ONLY. Z_RLE is designed to be almost as fast as
Z_HUFFMAN_ONLY, but give better compression for PNG image data. The strategy
parameter only affects the compression ratio but not the correctness of the
compressed output even if it is not set appropriately.
compressed output even if it is not set appropriately. Z_FIXED prevents the
use of dynamic Huffman codes, allowing for a simpler decoder for special
applications.
deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
memory, Z_STREAM_ERROR if a parameter is invalid (such as an invalid
@@ -1230,7 +1233,7 @@ ZEXTERN uLong ZEXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len));
*/
ZEXTERN uLong ZEXPORT adler32_combine OF((uLong adler1, uLong adler2,
uLong len2));
z_off_t len2));
/*
Combine two Adler-32 checksums into one. For two sequences of bytes, seq1
and seq2 with lengths len1 and len2, Adler-32 checksums were calculated for
@@ -1254,7 +1257,7 @@ ZEXTERN uLong ZEXPORT crc32 OF((uLong crc, const Bytef *buf, uInt len));
if (crc != original_crc) error();
*/
ZEXTERN uLong ZEXPORT crc32_combine OF((uLong crc1, uLong crc2, uLong len2));
ZEXTERN uLong ZEXPORT crc32_combine OF((uLong crc1, uLong crc2, z_off_t len2));
/*
Combine two CRC-32 check values into one. For two sequences of bytes,