mirror of
https://github.com/ZDoom/gzdoom.git
synced 2024-11-22 04:01:31 +00:00
alexey.lysiuk
parent
3dce874621
commit
7b2d54da35
19 changed files with 279 additions and 231 deletions
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@ -1,6 +1,18 @@
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ChangeLog file for zlib
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Changes in 1.2.13 (13 Oct 2022)
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- Fix configure issue that discarded provided CC definition
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- Correct incorrect inputs provided to the CRC functions
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- Repair prototypes and exporting of new CRC functions
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- Fix inflateBack to detect invalid input with distances too far
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- Have infback() deliver all of the available output up to any error
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- Fix a bug when getting a gzip header extra field with inflate()
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- Fix bug in block type selection when Z_FIXED used
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- Tighten deflateBound bounds
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- Remove deleted assembler code references
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- Various portability and appearance improvements
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Changes in 1.2.12 (27 Mar 2022)
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- Cygwin does not have _wopen(), so do not create gzopen_w() there
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- Permit a deflateParams() parameter change as soon as possible
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@ -159,7 +171,7 @@ Changes in 1.2.7.1 (24 Mar 2013)
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- Fix types in contrib/minizip to match result of get_crc_table()
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- Simplify contrib/vstudio/vc10 with 'd' suffix
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- Add TOP support to win32/Makefile.msc
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- Suport i686 and amd64 assembler builds in CMakeLists.txt
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- Support i686 and amd64 assembler builds in CMakeLists.txt
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- Fix typos in the use of _LARGEFILE64_SOURCE in zconf.h
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- Add vc11 and vc12 build files to contrib/vstudio
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- Add gzvprintf() as an undocumented function in zlib
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@ -359,14 +371,14 @@ Changes in 1.2.5.1 (10 Sep 2011)
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- Use u4 type for crc_table to avoid conversion warnings
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- Apply casts in zlib.h to avoid conversion warnings
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- Add OF to prototypes for adler32_combine_ and crc32_combine_ [Miller]
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- Improve inflateSync() documentation to note indeterminancy
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- Improve inflateSync() documentation to note indeterminacy
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- Add deflatePending() function to return the amount of pending output
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- Correct the spelling of "specification" in FAQ [Randers-Pehrson]
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- Add a check in configure for stdarg.h, use for gzprintf()
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- Check that pointers fit in ints when gzprint() compiled old style
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- Add dummy name before $(SHAREDLIBV) in Makefile [Bar-Lev, Bowler]
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- Delete line in configure that adds -L. libz.a to LDFLAGS [Weigelt]
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- Add debug records in assmebler code [Londer]
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- Add debug records in assembler code [Londer]
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- Update RFC references to use http://tools.ietf.org/html/... [Li]
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- Add --archs option, use of libtool to configure for Mac OS X [Borstel]
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@ -1033,7 +1045,7 @@ Changes in 1.2.0.1 (17 March 2003)
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- Include additional header file on VMS for off_t typedef
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- Try to use _vsnprintf where it supplants vsprintf [Vollant]
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- Add some casts in inffast.c
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- Enchance comments in zlib.h on what happens if gzprintf() tries to
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- Enhance comments in zlib.h on what happens if gzprintf() tries to
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write more than 4095 bytes before compression
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- Remove unused state from inflateBackEnd()
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- Remove exit(0) from minigzip.c, example.c
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@ -1211,7 +1223,7 @@ Changes in 1.0.9 (17 Feb 1998)
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- Avoid gcc 2.8.0 comparison bug a little differently than zlib 1.0.8
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- in inftrees.c, avoid cc -O bug on HP (Farshid Elahi)
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- in zconf.h move the ZLIB_DLL stuff earlier to avoid problems with
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the declaration of FAR (Gilles VOllant)
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the declaration of FAR (Gilles Vollant)
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- install libz.so* with mode 755 (executable) instead of 644 (Marc Lehmann)
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- read_buf buf parameter of type Bytef* instead of charf*
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- zmemcpy parameters are of type Bytef*, not charf* (Joseph Strout)
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@ -1567,7 +1579,7 @@ Changes in 0.4:
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- renamed deflateOptions as deflateInit2, call one or the other but not both
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- added the method parameter for deflateInit2
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- added inflateInit2
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- simplied considerably deflateInit and inflateInit by not supporting
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- simplified considerably deflateInit and inflateInit by not supporting
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user-provided history buffer. This is supported only in deflateInit2
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and inflateInit2
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@ -1,6 +1,6 @@
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ZLIB DATA COMPRESSION LIBRARY
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zlib 1.2.12 is a general purpose data compression library. All the code is
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zlib 1.2.13 is a general purpose data compression library. All the code is
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thread safe. The data format used by the zlib library is described by RFCs
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(Request for Comments) 1950 to 1952 in the files
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http://tools.ietf.org/html/rfc1950 (zlib format), rfc1951 (deflate format) and
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@ -31,7 +31,7 @@ Mark Nelson <markn@ieee.org> wrote an article about zlib for the Jan. 1997
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issue of Dr. Dobb's Journal; a copy of the article is available at
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http://marknelson.us/1997/01/01/zlib-engine/ .
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The changes made in version 1.2.12 are documented in the file ChangeLog.
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The changes made in version 1.2.13 are documented in the file ChangeLog.
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Unsupported third party contributions are provided in directory contrib/ .
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@ -19,7 +19,7 @@
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memory, Z_BUF_ERROR if there was not enough room in the output buffer,
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Z_STREAM_ERROR if the level parameter is invalid.
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*/
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int ZEXPORT compress2 (dest, destLen, source, sourceLen, level)
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int ZEXPORT compress2(dest, destLen, source, sourceLen, level)
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Bytef *dest;
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uLongf *destLen;
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const Bytef *source;
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@ -65,7 +65,7 @@ int ZEXPORT compress2 (dest, destLen, source, sourceLen, level)
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/* ===========================================================================
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*/
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int ZEXPORT compress (dest, destLen, source, sourceLen)
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int ZEXPORT compress(dest, destLen, source, sourceLen)
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Bytef *dest;
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uLongf *destLen;
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const Bytef *source;
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@ -78,7 +78,7 @@ int ZEXPORT compress (dest, destLen, source, sourceLen)
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If the default memLevel or windowBits for deflateInit() is changed, then
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this function needs to be updated.
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*/
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uLong ZEXPORT compressBound (sourceLen)
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uLong ZEXPORT compressBound(sourceLen)
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uLong sourceLen;
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{
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return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) +
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@ -98,13 +98,22 @@
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# endif
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#endif
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/* If available, use the ARM processor CRC32 instruction. */
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#if defined(__aarch64__) && defined(__ARM_FEATURE_CRC32) && W == 8
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# define ARMCRC32
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#endif
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/* Local functions. */
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local z_crc_t multmodp OF((z_crc_t a, z_crc_t b));
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local z_crc_t x2nmodp OF((z_off64_t n, unsigned k));
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/* If available, use the ARM processor CRC32 instruction. */
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#if defined(__aarch64__) && defined(__ARM_FEATURE_CRC32) && W == 8
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# define ARMCRC32
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#if defined(W) && (!defined(ARMCRC32) || defined(DYNAMIC_CRC_TABLE))
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local z_word_t byte_swap OF((z_word_t word));
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#endif
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#if defined(W) && !defined(ARMCRC32)
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local z_crc_t crc_word OF((z_word_t data));
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local z_word_t crc_word_big OF((z_word_t data));
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#endif
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#if defined(W) && (!defined(ARMCRC32) || defined(DYNAMIC_CRC_TABLE))
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@ -630,7 +639,7 @@ unsigned long ZEXPORT crc32_z(crc, buf, len)
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#endif /* DYNAMIC_CRC_TABLE */
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/* Pre-condition the CRC */
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crc ^= 0xffffffff;
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crc = (~crc) & 0xffffffff;
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/* Compute the CRC up to a word boundary. */
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while (len && ((z_size_t)buf & 7) != 0) {
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@ -645,8 +654,8 @@ unsigned long ZEXPORT crc32_z(crc, buf, len)
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len &= 7;
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/* Do three interleaved CRCs to realize the throughput of one crc32x
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instruction per cycle. Each CRC is calcuated on Z_BATCH words. The three
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CRCs are combined into a single CRC after each set of batches. */
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instruction per cycle. Each CRC is calculated on Z_BATCH words. The
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three CRCs are combined into a single CRC after each set of batches. */
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while (num >= 3 * Z_BATCH) {
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crc1 = 0;
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crc2 = 0;
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@ -749,7 +758,7 @@ unsigned long ZEXPORT crc32_z(crc, buf, len)
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#endif /* DYNAMIC_CRC_TABLE */
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/* Pre-condition the CRC */
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crc ^= 0xffffffff;
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crc = (~crc) & 0xffffffff;
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#ifdef W
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@ -1077,7 +1086,7 @@ uLong ZEXPORT crc32_combine64(crc1, crc2, len2)
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#ifdef DYNAMIC_CRC_TABLE
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once(&made, make_crc_table);
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#endif /* DYNAMIC_CRC_TABLE */
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return multmodp(x2nmodp(len2, 3), crc1) ^ crc2;
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return multmodp(x2nmodp(len2, 3), crc1) ^ (crc2 & 0xffffffff);
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}
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/* ========================================================================= */
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@ -1086,7 +1095,7 @@ uLong ZEXPORT crc32_combine(crc1, crc2, len2)
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uLong crc2;
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z_off_t len2;
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{
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return crc32_combine64(crc1, crc2, len2);
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return crc32_combine64(crc1, crc2, (z_off64_t)len2);
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}
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/* ========================================================================= */
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@ -1103,14 +1112,14 @@ uLong ZEXPORT crc32_combine_gen64(len2)
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uLong ZEXPORT crc32_combine_gen(len2)
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z_off_t len2;
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{
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return crc32_combine_gen64(len2);
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return crc32_combine_gen64((z_off64_t)len2);
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}
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/* ========================================================================= */
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uLong crc32_combine_op(crc1, crc2, op)
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uLong ZEXPORT crc32_combine_op(crc1, crc2, op)
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uLong crc1;
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uLong crc2;
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uLong op;
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{
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return multmodp(op, crc1) ^ crc2;
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return multmodp(op, crc1) ^ (crc2 & 0xffffffff);
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}
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@ -52,7 +52,7 @@
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#include "deflate.h"
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const char deflate_copyright[] =
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" deflate 1.2.12 Copyright 1995-2022 Jean-loup Gailly and Mark Adler ";
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" deflate 1.2.13 Copyright 1995-2022 Jean-loup Gailly and Mark Adler ";
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/*
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If you use the zlib library in a product, an acknowledgment is welcome
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in the documentation of your product. If for some reason you cannot
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@ -87,13 +87,7 @@ local void lm_init OF((deflate_state *s));
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local void putShortMSB OF((deflate_state *s, uInt b));
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local void flush_pending OF((z_streamp strm));
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local unsigned read_buf OF((z_streamp strm, Bytef *buf, unsigned size));
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#ifdef ASMV
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# pragma message("Assembler code may have bugs -- use at your own risk")
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void match_init OF((void)); /* asm code initialization */
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uInt longest_match OF((deflate_state *s, IPos cur_match));
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#else
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local uInt longest_match OF((deflate_state *s, IPos cur_match));
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#endif
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#ifdef ZLIB_DEBUG
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local void check_match OF((deflate_state *s, IPos start, IPos match,
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@ -160,7 +154,7 @@ local const config configuration_table[10] = {
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* characters, so that a running hash key can be computed from the previous
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* key instead of complete recalculation each time.
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*/
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#define UPDATE_HASH(s,h,c) (h = (((h)<<s->hash_shift) ^ (c)) & s->hash_mask)
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#define UPDATE_HASH(s,h,c) (h = (((h) << s->hash_shift) ^ (c)) & s->hash_mask)
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/* ===========================================================================
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@ -191,9 +185,9 @@ local const config configuration_table[10] = {
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*/
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#define CLEAR_HASH(s) \
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do { \
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s->head[s->hash_size-1] = NIL; \
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s->head[s->hash_size - 1] = NIL; \
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zmemzero((Bytef *)s->head, \
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(unsigned)(s->hash_size-1)*sizeof(*s->head)); \
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(unsigned)(s->hash_size - 1)*sizeof(*s->head)); \
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} while (0)
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/* ===========================================================================
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@ -285,6 +279,8 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
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if (windowBits < 0) { /* suppress zlib wrapper */
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wrap = 0;
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if (windowBits < -15)
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return Z_STREAM_ERROR;
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windowBits = -windowBits;
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}
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#ifdef GZIP
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@ -314,7 +310,7 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
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s->hash_bits = (uInt)memLevel + 7;
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s->hash_size = 1 << s->hash_bits;
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s->hash_mask = s->hash_size - 1;
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s->hash_shift = ((s->hash_bits+MIN_MATCH-1)/MIN_MATCH);
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s->hash_shift = ((s->hash_bits + MIN_MATCH-1) / MIN_MATCH);
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s->window = (Bytef *) ZALLOC(strm, s->w_size, 2*sizeof(Byte));
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s->prev = (Posf *) ZALLOC(strm, s->w_size, sizeof(Pos));
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@ -340,11 +336,11 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
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* sym_buf value to read moves forward three bytes. From that symbol, up to
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* 31 bits are written to pending_buf. The closest the written pending_buf
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* bits gets to the next sym_buf symbol to read is just before the last
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* code is written. At that time, 31*(n-2) bits have been written, just
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* after 24*(n-2) bits have been consumed from sym_buf. sym_buf starts at
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* 8*n bits into pending_buf. (Note that the symbol buffer fills when n-1
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* code is written. At that time, 31*(n - 2) bits have been written, just
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* after 24*(n - 2) bits have been consumed from sym_buf. sym_buf starts at
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* 8*n bits into pending_buf. (Note that the symbol buffer fills when n - 1
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* symbols are written.) The closest the writing gets to what is unread is
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* then n+14 bits. Here n is lit_bufsize, which is 16384 by default, and
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* then n + 14 bits. Here n is lit_bufsize, which is 16384 by default, and
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* can range from 128 to 32768.
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*
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* Therefore, at a minimum, there are 142 bits of space between what is
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@ -390,7 +386,7 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
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/* =========================================================================
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* Check for a valid deflate stream state. Return 0 if ok, 1 if not.
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*/
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local int deflateStateCheck (strm)
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local int deflateStateCheck(strm)
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z_streamp strm;
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{
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deflate_state *s;
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@ -413,7 +409,7 @@ local int deflateStateCheck (strm)
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}
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/* ========================================================================= */
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int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength)
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int ZEXPORT deflateSetDictionary(strm, dictionary, dictLength)
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z_streamp strm;
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const Bytef *dictionary;
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uInt dictLength;
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@ -482,7 +478,7 @@ int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength)
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}
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/* ========================================================================= */
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int ZEXPORT deflateGetDictionary (strm, dictionary, dictLength)
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int ZEXPORT deflateGetDictionary(strm, dictionary, dictLength)
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z_streamp strm;
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Bytef *dictionary;
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uInt *dictLength;
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@ -504,7 +500,7 @@ int ZEXPORT deflateGetDictionary (strm, dictionary, dictLength)
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}
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/* ========================================================================= */
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int ZEXPORT deflateResetKeep (strm)
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int ZEXPORT deflateResetKeep(strm)
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z_streamp strm;
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{
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deflate_state *s;
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@ -542,7 +538,7 @@ int ZEXPORT deflateResetKeep (strm)
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}
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/* ========================================================================= */
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int ZEXPORT deflateReset (strm)
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int ZEXPORT deflateReset(strm)
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z_streamp strm;
|
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{
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int ret;
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@ -554,7 +550,7 @@ int ZEXPORT deflateReset (strm)
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}
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/* ========================================================================= */
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int ZEXPORT deflateSetHeader (strm, head)
|
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int ZEXPORT deflateSetHeader(strm, head)
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z_streamp strm;
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gz_headerp head;
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{
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@ -565,7 +561,7 @@ int ZEXPORT deflateSetHeader (strm, head)
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}
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/* ========================================================================= */
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int ZEXPORT deflatePending (strm, pending, bits)
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int ZEXPORT deflatePending(strm, pending, bits)
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unsigned *pending;
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int *bits;
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z_streamp strm;
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@ -579,7 +575,7 @@ int ZEXPORT deflatePending (strm, pending, bits)
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}
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/* ========================================================================= */
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int ZEXPORT deflatePrime (strm, bits, value)
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int ZEXPORT deflatePrime(strm, bits, value)
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z_streamp strm;
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int bits;
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int value;
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@ -674,36 +670,50 @@ int ZEXPORT deflateTune(strm, good_length, max_lazy, nice_length, max_chain)
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}
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/* =========================================================================
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* For the default windowBits of 15 and memLevel of 8, this function returns
|
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* a close to exact, as well as small, upper bound on the compressed size.
|
||||
* They are coded as constants here for a reason--if the #define's are
|
||||
* changed, then this function needs to be changed as well. The return
|
||||
* value for 15 and 8 only works for those exact settings.
|
||||
* For the default windowBits of 15 and memLevel of 8, this function returns a
|
||||
* close to exact, as well as small, upper bound on the compressed size. This
|
||||
* is an expansion of ~0.03%, plus a small constant.
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||||
*
|
||||
* For any setting other than those defaults for windowBits and memLevel,
|
||||
* the value returned is a conservative worst case for the maximum expansion
|
||||
* resulting from using fixed blocks instead of stored blocks, which deflate
|
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* can emit on compressed data for some combinations of the parameters.
|
||||
* For any setting other than those defaults for windowBits and memLevel, one
|
||||
* of two worst case bounds is returned. This is at most an expansion of ~4% or
|
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* ~13%, plus a small constant.
|
||||
*
|
||||
* This function could be more sophisticated to provide closer upper bounds for
|
||||
* every combination of windowBits and memLevel. But even the conservative
|
||||
* upper bound of about 14% expansion does not seem onerous for output buffer
|
||||
* allocation.
|
||||
* Both the 0.03% and 4% derive from the overhead of stored blocks. The first
|
||||
* one is for stored blocks of 16383 bytes (memLevel == 8), whereas the second
|
||||
* is for stored blocks of 127 bytes (the worst case memLevel == 1). The
|
||||
* expansion results from five bytes of header for each stored block.
|
||||
*
|
||||
* The larger expansion of 13% results from a window size less than or equal to
|
||||
* the symbols buffer size (windowBits <= memLevel + 7). In that case some of
|
||||
* the data being compressed may have slid out of the sliding window, impeding
|
||||
* a stored block from being emitted. Then the only choice is a fixed or
|
||||
* dynamic block, where a fixed block limits the maximum expansion to 9 bits
|
||||
* per 8-bit byte, plus 10 bits for every block. The smallest block size for
|
||||
* which this can occur is 255 (memLevel == 2).
|
||||
*
|
||||
* Shifts are used to approximate divisions, for speed.
|
||||
*/
|
||||
uLong ZEXPORT deflateBound(strm, sourceLen)
|
||||
z_streamp strm;
|
||||
uLong sourceLen;
|
||||
{
|
||||
deflate_state *s;
|
||||
uLong complen, wraplen;
|
||||
uLong fixedlen, storelen, wraplen;
|
||||
|
||||
/* conservative upper bound for compressed data */
|
||||
complen = sourceLen +
|
||||
((sourceLen + 7) >> 3) + ((sourceLen + 63) >> 6) + 5;
|
||||
/* upper bound for fixed blocks with 9-bit literals and length 255
|
||||
(memLevel == 2, which is the lowest that may not use stored blocks) --
|
||||
~13% overhead plus a small constant */
|
||||
fixedlen = sourceLen + (sourceLen >> 3) + (sourceLen >> 8) +
|
||||
(sourceLen >> 9) + 4;
|
||||
|
||||
/* if can't get parameters, return conservative bound plus zlib wrapper */
|
||||
/* upper bound for stored blocks with length 127 (memLevel == 1) --
|
||||
~4% overhead plus a small constant */
|
||||
storelen = sourceLen + (sourceLen >> 5) + (sourceLen >> 7) +
|
||||
(sourceLen >> 11) + 7;
|
||||
|
||||
/* if can't get parameters, return larger bound plus a zlib wrapper */
|
||||
if (deflateStateCheck(strm))
|
||||
return complen + 6;
|
||||
return (fixedlen > storelen ? fixedlen : storelen) + 6;
|
||||
|
||||
/* compute wrapper length */
|
||||
s = strm->state;
|
||||
|
|
@ -740,11 +750,12 @@ uLong ZEXPORT deflateBound(strm, sourceLen)
|
|||
wraplen = 6;
|
||||
}
|
||||
|
||||
/* if not default parameters, return conservative bound */
|
||||
/* if not default parameters, return one of the conservative bounds */
|
||||
if (s->w_bits != 15 || s->hash_bits != 8 + 7)
|
||||
return complen + wraplen;
|
||||
return (s->w_bits <= s->hash_bits ? fixedlen : storelen) + wraplen;
|
||||
|
||||
/* default settings: return tight bound for that case */
|
||||
/* default settings: return tight bound for that case -- ~0.03% overhead
|
||||
plus a small constant */
|
||||
return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) +
|
||||
(sourceLen >> 25) + 13 - 6 + wraplen;
|
||||
}
|
||||
|
|
@ -754,7 +765,7 @@ uLong ZEXPORT deflateBound(strm, sourceLen)
|
|||
* IN assertion: the stream state is correct and there is enough room in
|
||||
* pending_buf.
|
||||
*/
|
||||
local void putShortMSB (s, b)
|
||||
local void putShortMSB(s, b)
|
||||
deflate_state *s;
|
||||
uInt b;
|
||||
{
|
||||
|
|
@ -801,7 +812,7 @@ local void flush_pending(strm)
|
|||
} while (0)
|
||||
|
||||
/* ========================================================================= */
|
||||
int ZEXPORT deflate (strm, flush)
|
||||
int ZEXPORT deflate(strm, flush)
|
||||
z_streamp strm;
|
||||
int flush;
|
||||
{
|
||||
|
|
@ -856,7 +867,7 @@ int ZEXPORT deflate (strm, flush)
|
|||
s->status = BUSY_STATE;
|
||||
if (s->status == INIT_STATE) {
|
||||
/* zlib header */
|
||||
uInt header = (Z_DEFLATED + ((s->w_bits-8)<<4)) << 8;
|
||||
uInt header = (Z_DEFLATED + ((s->w_bits - 8) << 4)) << 8;
|
||||
uInt level_flags;
|
||||
|
||||
if (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2)
|
||||
|
|
@ -1116,7 +1127,7 @@ int ZEXPORT deflate (strm, flush)
|
|||
}
|
||||
|
||||
/* ========================================================================= */
|
||||
int ZEXPORT deflateEnd (strm)
|
||||
int ZEXPORT deflateEnd(strm)
|
||||
z_streamp strm;
|
||||
{
|
||||
int status;
|
||||
|
|
@ -1142,7 +1153,7 @@ int ZEXPORT deflateEnd (strm)
|
|||
* To simplify the source, this is not supported for 16-bit MSDOS (which
|
||||
* doesn't have enough memory anyway to duplicate compression states).
|
||||
*/
|
||||
int ZEXPORT deflateCopy (dest, source)
|
||||
int ZEXPORT deflateCopy(dest, source)
|
||||
z_streamp dest;
|
||||
z_streamp source;
|
||||
{
|
||||
|
|
@ -1231,7 +1242,7 @@ local unsigned read_buf(strm, buf, size)
|
|||
/* ===========================================================================
|
||||
* Initialize the "longest match" routines for a new zlib stream
|
||||
*/
|
||||
local void lm_init (s)
|
||||
local void lm_init(s)
|
||||
deflate_state *s;
|
||||
{
|
||||
s->window_size = (ulg)2L*s->w_size;
|
||||
|
|
@ -1252,11 +1263,6 @@ local void lm_init (s)
|
|||
s->match_length = s->prev_length = MIN_MATCH-1;
|
||||
s->match_available = 0;
|
||||
s->ins_h = 0;
|
||||
#ifndef FASTEST
|
||||
#ifdef ASMV
|
||||
match_init(); /* initialize the asm code */
|
||||
#endif
|
||||
#endif
|
||||
}
|
||||
|
||||
#ifndef FASTEST
|
||||
|
|
@ -1269,10 +1275,6 @@ local void lm_init (s)
|
|||
* string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1
|
||||
* OUT assertion: the match length is not greater than s->lookahead.
|
||||
*/
|
||||
#ifndef ASMV
|
||||
/* For 80x86 and 680x0, an optimized version will be provided in match.asm or
|
||||
* match.S. The code will be functionally equivalent.
|
||||
*/
|
||||
local uInt longest_match(s, cur_match)
|
||||
deflate_state *s;
|
||||
IPos cur_match; /* current match */
|
||||
|
|
@ -1297,10 +1299,10 @@ local uInt longest_match(s, cur_match)
|
|||
*/
|
||||
register Bytef *strend = s->window + s->strstart + MAX_MATCH - 1;
|
||||
register ush scan_start = *(ushf*)scan;
|
||||
register ush scan_end = *(ushf*)(scan+best_len-1);
|
||||
register ush scan_end = *(ushf*)(scan + best_len - 1);
|
||||
#else
|
||||
register Bytef *strend = s->window + s->strstart + MAX_MATCH;
|
||||
register Byte scan_end1 = scan[best_len-1];
|
||||
register Byte scan_end1 = scan[best_len - 1];
|
||||
register Byte scan_end = scan[best_len];
|
||||
#endif
|
||||
|
||||
|
|
@ -1318,7 +1320,8 @@ local uInt longest_match(s, cur_match)
|
|||
*/
|
||||
if ((uInt)nice_match > s->lookahead) nice_match = (int)s->lookahead;
|
||||
|
||||
Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead");
|
||||
Assert((ulg)s->strstart <= s->window_size - MIN_LOOKAHEAD,
|
||||
"need lookahead");
|
||||
|
||||
do {
|
||||
Assert(cur_match < s->strstart, "no future");
|
||||
|
|
@ -1336,43 +1339,44 @@ local uInt longest_match(s, cur_match)
|
|||
/* This code assumes sizeof(unsigned short) == 2. Do not use
|
||||
* UNALIGNED_OK if your compiler uses a different size.
|
||||
*/
|
||||
if (*(ushf*)(match+best_len-1) != scan_end ||
|
||||
if (*(ushf*)(match + best_len - 1) != scan_end ||
|
||||
*(ushf*)match != scan_start) continue;
|
||||
|
||||
/* It is not necessary to compare scan[2] and match[2] since they are
|
||||
* always equal when the other bytes match, given that the hash keys
|
||||
* are equal and that HASH_BITS >= 8. Compare 2 bytes at a time at
|
||||
* strstart+3, +5, ... up to strstart+257. We check for insufficient
|
||||
* strstart + 3, + 5, up to strstart + 257. We check for insufficient
|
||||
* lookahead only every 4th comparison; the 128th check will be made
|
||||
* at strstart+257. If MAX_MATCH-2 is not a multiple of 8, it is
|
||||
* at strstart + 257. If MAX_MATCH-2 is not a multiple of 8, it is
|
||||
* necessary to put more guard bytes at the end of the window, or
|
||||
* to check more often for insufficient lookahead.
|
||||
*/
|
||||
Assert(scan[2] == match[2], "scan[2]?");
|
||||
scan++, match++;
|
||||
do {
|
||||
} while (*(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
|
||||
*(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
|
||||
*(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
|
||||
*(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
|
||||
} while (*(ushf*)(scan += 2) == *(ushf*)(match += 2) &&
|
||||
*(ushf*)(scan += 2) == *(ushf*)(match += 2) &&
|
||||
*(ushf*)(scan += 2) == *(ushf*)(match += 2) &&
|
||||
*(ushf*)(scan += 2) == *(ushf*)(match += 2) &&
|
||||
scan < strend);
|
||||
/* The funny "do {}" generates better code on most compilers */
|
||||
|
||||
/* Here, scan <= window+strstart+257 */
|
||||
Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
|
||||
/* Here, scan <= window + strstart + 257 */
|
||||
Assert(scan <= s->window + (unsigned)(s->window_size - 1),
|
||||
"wild scan");
|
||||
if (*scan == *match) scan++;
|
||||
|
||||
len = (MAX_MATCH - 1) - (int)(strend-scan);
|
||||
len = (MAX_MATCH - 1) - (int)(strend - scan);
|
||||
scan = strend - (MAX_MATCH-1);
|
||||
|
||||
#else /* UNALIGNED_OK */
|
||||
|
||||
if (match[best_len] != scan_end ||
|
||||
match[best_len-1] != scan_end1 ||
|
||||
match[best_len - 1] != scan_end1 ||
|
||||
*match != *scan ||
|
||||
*++match != scan[1]) continue;
|
||||
|
||||
/* The check at best_len-1 can be removed because it will be made
|
||||
/* The check at best_len - 1 can be removed because it will be made
|
||||
* again later. (This heuristic is not always a win.)
|
||||
* It is not necessary to compare scan[2] and match[2] since they
|
||||
* are always equal when the other bytes match, given that
|
||||
|
|
@ -1382,7 +1386,7 @@ local uInt longest_match(s, cur_match)
|
|||
Assert(*scan == *match, "match[2]?");
|
||||
|
||||
/* We check for insufficient lookahead only every 8th comparison;
|
||||
* the 256th check will be made at strstart+258.
|
||||
* the 256th check will be made at strstart + 258.
|
||||
*/
|
||||
do {
|
||||
} while (*++scan == *++match && *++scan == *++match &&
|
||||
|
|
@ -1391,7 +1395,8 @@ local uInt longest_match(s, cur_match)
|
|||
*++scan == *++match && *++scan == *++match &&
|
||||
scan < strend);
|
||||
|
||||
Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
|
||||
Assert(scan <= s->window + (unsigned)(s->window_size - 1),
|
||||
"wild scan");
|
||||
|
||||
len = MAX_MATCH - (int)(strend - scan);
|
||||
scan = strend - MAX_MATCH;
|
||||
|
|
@ -1403,9 +1408,9 @@ local uInt longest_match(s, cur_match)
|
|||
best_len = len;
|
||||
if (len >= nice_match) break;
|
||||
#ifdef UNALIGNED_OK
|
||||
scan_end = *(ushf*)(scan+best_len-1);
|
||||
scan_end = *(ushf*)(scan + best_len - 1);
|
||||
#else
|
||||
scan_end1 = scan[best_len-1];
|
||||
scan_end1 = scan[best_len - 1];
|
||||
scan_end = scan[best_len];
|
||||
#endif
|
||||
}
|
||||
|
|
@ -1415,7 +1420,6 @@ local uInt longest_match(s, cur_match)
|
|||
if ((uInt)best_len <= s->lookahead) return (uInt)best_len;
|
||||
return s->lookahead;
|
||||
}
|
||||
#endif /* ASMV */
|
||||
|
||||
#else /* FASTEST */
|
||||
|
||||
|
|
@ -1436,7 +1440,8 @@ local uInt longest_match(s, cur_match)
|
|||
*/
|
||||
Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever");
|
||||
|
||||
Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead");
|
||||
Assert((ulg)s->strstart <= s->window_size - MIN_LOOKAHEAD,
|
||||
"need lookahead");
|
||||
|
||||
Assert(cur_match < s->strstart, "no future");
|
||||
|
||||
|
|
@ -1446,7 +1451,7 @@ local uInt longest_match(s, cur_match)
|
|||
*/
|
||||
if (match[0] != scan[0] || match[1] != scan[1]) return MIN_MATCH-1;
|
||||
|
||||
/* The check at best_len-1 can be removed because it will be made
|
||||
/* The check at best_len - 1 can be removed because it will be made
|
||||
* again later. (This heuristic is not always a win.)
|
||||
* It is not necessary to compare scan[2] and match[2] since they
|
||||
* are always equal when the other bytes match, given that
|
||||
|
|
@ -1456,7 +1461,7 @@ local uInt longest_match(s, cur_match)
|
|||
Assert(*scan == *match, "match[2]?");
|
||||
|
||||
/* We check for insufficient lookahead only every 8th comparison;
|
||||
* the 256th check will be made at strstart+258.
|
||||
* the 256th check will be made at strstart + 258.
|
||||
*/
|
||||
do {
|
||||
} while (*++scan == *++match && *++scan == *++match &&
|
||||
|
|
@ -1465,7 +1470,7 @@ local uInt longest_match(s, cur_match)
|
|||
*++scan == *++match && *++scan == *++match &&
|
||||
scan < strend);
|
||||
|
||||
Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
|
||||
Assert(scan <= s->window + (unsigned)(s->window_size - 1), "wild scan");
|
||||
|
||||
len = MAX_MATCH - (int)(strend - scan);
|
||||
|
||||
|
|
@ -1501,7 +1506,7 @@ local void check_match(s, start, match, length)
|
|||
z_error("invalid match");
|
||||
}
|
||||
if (z_verbose > 1) {
|
||||
fprintf(stderr,"\\[%d,%d]", start-match, length);
|
||||
fprintf(stderr,"\\[%d,%d]", start - match, length);
|
||||
do { putc(s->window[start++], stderr); } while (--length != 0);
|
||||
}
|
||||
}
|
||||
|
|
@ -1547,9 +1552,9 @@ local void fill_window(s)
|
|||
/* If the window is almost full and there is insufficient lookahead,
|
||||
* move the upper half to the lower one to make room in the upper half.
|
||||
*/
|
||||
if (s->strstart >= wsize+MAX_DIST(s)) {
|
||||
if (s->strstart >= wsize + MAX_DIST(s)) {
|
||||
|
||||
zmemcpy(s->window, s->window+wsize, (unsigned)wsize - more);
|
||||
zmemcpy(s->window, s->window + wsize, (unsigned)wsize - more);
|
||||
s->match_start -= wsize;
|
||||
s->strstart -= wsize; /* we now have strstart >= MAX_DIST */
|
||||
s->block_start -= (long) wsize;
|
||||
|
|
@ -1680,7 +1685,7 @@ local void fill_window(s)
|
|||
*
|
||||
* deflate_stored() is written to minimize the number of times an input byte is
|
||||
* copied. It is most efficient with large input and output buffers, which
|
||||
* maximizes the opportunites to have a single copy from next_in to next_out.
|
||||
* maximizes the opportunities to have a single copy from next_in to next_out.
|
||||
*/
|
||||
local block_state deflate_stored(s, flush)
|
||||
deflate_state *s;
|
||||
|
|
@ -1890,7 +1895,7 @@ local block_state deflate_fast(s, flush)
|
|||
if (s->lookahead == 0) break; /* flush the current block */
|
||||
}
|
||||
|
||||
/* Insert the string window[strstart .. strstart+2] in the
|
||||
/* Insert the string window[strstart .. strstart + 2] in the
|
||||
* dictionary, and set hash_head to the head of the hash chain:
|
||||
*/
|
||||
hash_head = NIL;
|
||||
|
|
@ -1938,7 +1943,7 @@ local block_state deflate_fast(s, flush)
|
|||
s->strstart += s->match_length;
|
||||
s->match_length = 0;
|
||||
s->ins_h = s->window[s->strstart];
|
||||
UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]);
|
||||
UPDATE_HASH(s, s->ins_h, s->window[s->strstart + 1]);
|
||||
#if MIN_MATCH != 3
|
||||
Call UPDATE_HASH() MIN_MATCH-3 more times
|
||||
#endif
|
||||
|
|
@ -1949,7 +1954,7 @@ local block_state deflate_fast(s, flush)
|
|||
} else {
|
||||
/* No match, output a literal byte */
|
||||
Tracevv((stderr,"%c", s->window[s->strstart]));
|
||||
_tr_tally_lit (s, s->window[s->strstart], bflush);
|
||||
_tr_tally_lit(s, s->window[s->strstart], bflush);
|
||||
s->lookahead--;
|
||||
s->strstart++;
|
||||
}
|
||||
|
|
@ -1993,7 +1998,7 @@ local block_state deflate_slow(s, flush)
|
|||
if (s->lookahead == 0) break; /* flush the current block */
|
||||
}
|
||||
|
||||
/* Insert the string window[strstart .. strstart+2] in the
|
||||
/* Insert the string window[strstart .. strstart + 2] in the
|
||||
* dictionary, and set hash_head to the head of the hash chain:
|
||||
*/
|
||||
hash_head = NIL;
|
||||
|
|
@ -2035,17 +2040,17 @@ local block_state deflate_slow(s, flush)
|
|||
uInt max_insert = s->strstart + s->lookahead - MIN_MATCH;
|
||||
/* Do not insert strings in hash table beyond this. */
|
||||
|
||||
check_match(s, s->strstart-1, s->prev_match, s->prev_length);
|
||||
check_match(s, s->strstart - 1, s->prev_match, s->prev_length);
|
||||
|
||||
_tr_tally_dist(s, s->strstart -1 - s->prev_match,
|
||||
_tr_tally_dist(s, s->strstart - 1 - s->prev_match,
|
||||
s->prev_length - MIN_MATCH, bflush);
|
||||
|
||||
/* Insert in hash table all strings up to the end of the match.
|
||||
* strstart-1 and strstart are already inserted. If there is not
|
||||
* strstart - 1 and strstart are already inserted. If there is not
|
||||
* enough lookahead, the last two strings are not inserted in
|
||||
* the hash table.
|
||||
*/
|
||||
s->lookahead -= s->prev_length-1;
|
||||
s->lookahead -= s->prev_length - 1;
|
||||
s->prev_length -= 2;
|
||||
do {
|
||||
if (++s->strstart <= max_insert) {
|
||||
|
|
@ -2063,8 +2068,8 @@ local block_state deflate_slow(s, flush)
|
|||
* single literal. If there was a match but the current match
|
||||
* is longer, truncate the previous match to a single literal.
|
||||
*/
|
||||
Tracevv((stderr,"%c", s->window[s->strstart-1]));
|
||||
_tr_tally_lit(s, s->window[s->strstart-1], bflush);
|
||||
Tracevv((stderr,"%c", s->window[s->strstart - 1]));
|
||||
_tr_tally_lit(s, s->window[s->strstart - 1], bflush);
|
||||
if (bflush) {
|
||||
FLUSH_BLOCK_ONLY(s, 0);
|
||||
}
|
||||
|
|
@ -2082,8 +2087,8 @@ local block_state deflate_slow(s, flush)
|
|||
}
|
||||
Assert (flush != Z_NO_FLUSH, "no flush?");
|
||||
if (s->match_available) {
|
||||
Tracevv((stderr,"%c", s->window[s->strstart-1]));
|
||||
_tr_tally_lit(s, s->window[s->strstart-1], bflush);
|
||||
Tracevv((stderr,"%c", s->window[s->strstart - 1]));
|
||||
_tr_tally_lit(s, s->window[s->strstart - 1], bflush);
|
||||
s->match_available = 0;
|
||||
}
|
||||
s->insert = s->strstart < MIN_MATCH-1 ? s->strstart : MIN_MATCH-1;
|
||||
|
|
@ -2140,7 +2145,8 @@ local block_state deflate_rle(s, flush)
|
|||
if (s->match_length > s->lookahead)
|
||||
s->match_length = s->lookahead;
|
||||
}
|
||||
Assert(scan <= s->window+(uInt)(s->window_size-1), "wild scan");
|
||||
Assert(scan <= s->window + (uInt)(s->window_size - 1),
|
||||
"wild scan");
|
||||
}
|
||||
|
||||
/* Emit match if have run of MIN_MATCH or longer, else emit literal */
|
||||
|
|
@ -2155,7 +2161,7 @@ local block_state deflate_rle(s, flush)
|
|||
} else {
|
||||
/* No match, output a literal byte */
|
||||
Tracevv((stderr,"%c", s->window[s->strstart]));
|
||||
_tr_tally_lit (s, s->window[s->strstart], bflush);
|
||||
_tr_tally_lit(s, s->window[s->strstart], bflush);
|
||||
s->lookahead--;
|
||||
s->strstart++;
|
||||
}
|
||||
|
|
@ -2195,7 +2201,7 @@ local block_state deflate_huff(s, flush)
|
|||
/* Output a literal byte */
|
||||
s->match_length = 0;
|
||||
Tracevv((stderr,"%c", s->window[s->strstart]));
|
||||
_tr_tally_lit (s, s->window[s->strstart], bflush);
|
||||
_tr_tally_lit(s, s->window[s->strstart], bflush);
|
||||
s->lookahead--;
|
||||
s->strstart++;
|
||||
if (bflush) FLUSH_BLOCK(s, 0);
|
||||
|
|
|
|||
|
|
@ -329,8 +329,8 @@ void ZLIB_INTERNAL _tr_stored_block OF((deflate_state *s, charf *buf,
|
|||
# define _tr_tally_dist(s, distance, length, flush) \
|
||||
{ uch len = (uch)(length); \
|
||||
ush dist = (ush)(distance); \
|
||||
s->sym_buf[s->sym_next++] = dist; \
|
||||
s->sym_buf[s->sym_next++] = dist >> 8; \
|
||||
s->sym_buf[s->sym_next++] = (uch)dist; \
|
||||
s->sym_buf[s->sym_next++] = (uch)(dist >> 8); \
|
||||
s->sym_buf[s->sym_next++] = len; \
|
||||
dist--; \
|
||||
s->dyn_ltree[_length_code[len]+LITERALS+1].Freq++; \
|
||||
|
|
|
|||
|
|
@ -66,6 +66,7 @@ int stream_size;
|
|||
state->window = window;
|
||||
state->wnext = 0;
|
||||
state->whave = 0;
|
||||
state->sane = 1;
|
||||
return Z_OK;
|
||||
}
|
||||
|
||||
|
|
@ -605,25 +606,27 @@ void FAR *out_desc;
|
|||
break;
|
||||
|
||||
case DONE:
|
||||
/* inflate stream terminated properly -- write leftover output */
|
||||
/* inflate stream terminated properly */
|
||||
ret = Z_STREAM_END;
|
||||
if (left < state->wsize) {
|
||||
if (out(out_desc, state->window, state->wsize - left))
|
||||
ret = Z_BUF_ERROR;
|
||||
}
|
||||
goto inf_leave;
|
||||
|
||||
case BAD:
|
||||
ret = Z_DATA_ERROR;
|
||||
goto inf_leave;
|
||||
|
||||
default: /* can't happen, but makes compilers happy */
|
||||
default:
|
||||
/* can't happen, but makes compilers happy */
|
||||
ret = Z_STREAM_ERROR;
|
||||
goto inf_leave;
|
||||
}
|
||||
|
||||
/* Return unused input */
|
||||
/* Write leftover output and return unused input */
|
||||
inf_leave:
|
||||
if (left < state->wsize) {
|
||||
if (out(out_desc, state->window, state->wsize - left) &&
|
||||
ret == Z_STREAM_END)
|
||||
ret = Z_BUF_ERROR;
|
||||
}
|
||||
strm->next_in = next;
|
||||
strm->avail_in = have;
|
||||
return ret;
|
||||
|
|
|
|||
|
|
@ -168,6 +168,8 @@ int windowBits;
|
|||
|
||||
/* extract wrap request from windowBits parameter */
|
||||
if (windowBits < 0) {
|
||||
if (windowBits < -15)
|
||||
return Z_STREAM_ERROR;
|
||||
wrap = 0;
|
||||
windowBits = -windowBits;
|
||||
}
|
||||
|
|
@ -764,8 +766,9 @@ int flush;
|
|||
if (copy > have) copy = have;
|
||||
if (copy) {
|
||||
if (state->head != Z_NULL &&
|
||||
state->head->extra != Z_NULL) {
|
||||
len = state->head->extra_len - state->length;
|
||||
state->head->extra != Z_NULL &&
|
||||
(len = state->head->extra_len - state->length) <
|
||||
state->head->extra_max) {
|
||||
zmemcpy(state->head->extra + len, next,
|
||||
len + copy > state->head->extra_max ?
|
||||
state->head->extra_max - len : copy);
|
||||
|
|
|
|||
|
|
@ -9,7 +9,7 @@
|
|||
#define MAXBITS 15
|
||||
|
||||
const char inflate_copyright[] =
|
||||
" inflate 1.2.12 Copyright 1995-2022 Mark Adler ";
|
||||
" inflate 1.2.13 Copyright 1995-2022 Mark Adler ";
|
||||
/*
|
||||
If you use the zlib library in a product, an acknowledgment is welcome
|
||||
in the documentation of your product. If for some reason you cannot
|
||||
|
|
@ -62,7 +62,7 @@ unsigned short FAR *work;
|
|||
35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};
|
||||
static const unsigned short lext[31] = { /* Length codes 257..285 extra */
|
||||
16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18,
|
||||
19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 199, 202};
|
||||
19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 194, 65};
|
||||
static const unsigned short dbase[32] = { /* Distance codes 0..29 base */
|
||||
1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
|
||||
257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
|
||||
|
|
|
|||
|
|
@ -38,7 +38,7 @@ typedef struct {
|
|||
/* Maximum size of the dynamic table. The maximum number of code structures is
|
||||
1444, which is the sum of 852 for literal/length codes and 592 for distance
|
||||
codes. These values were found by exhaustive searches using the program
|
||||
examples/enough.c found in the zlib distribtution. The arguments to that
|
||||
examples/enough.c found in the zlib distribution. The arguments to that
|
||||
program are the number of symbols, the initial root table size, and the
|
||||
maximum bit length of a code. "enough 286 9 15" for literal/length codes
|
||||
returns returns 852, and "enough 30 6 15" for distance codes returns 592.
|
||||
|
|
|
|||
|
|
@ -193,7 +193,7 @@ local void send_bits(s, value, length)
|
|||
s->bits_sent += (ulg)length;
|
||||
|
||||
/* If not enough room in bi_buf, use (valid) bits from bi_buf and
|
||||
* (16 - bi_valid) bits from value, leaving (width - (16-bi_valid))
|
||||
* (16 - bi_valid) bits from value, leaving (width - (16 - bi_valid))
|
||||
* unused bits in value.
|
||||
*/
|
||||
if (s->bi_valid > (int)Buf_size - length) {
|
||||
|
|
@ -256,7 +256,7 @@ local void tr_static_init()
|
|||
length = 0;
|
||||
for (code = 0; code < LENGTH_CODES-1; code++) {
|
||||
base_length[code] = length;
|
||||
for (n = 0; n < (1<<extra_lbits[code]); n++) {
|
||||
for (n = 0; n < (1 << extra_lbits[code]); n++) {
|
||||
_length_code[length++] = (uch)code;
|
||||
}
|
||||
}
|
||||
|
|
@ -265,13 +265,13 @@ local void tr_static_init()
|
|||
* in two different ways: code 284 + 5 bits or code 285, so we
|
||||
* overwrite length_code[255] to use the best encoding:
|
||||
*/
|
||||
_length_code[length-1] = (uch)code;
|
||||
_length_code[length - 1] = (uch)code;
|
||||
|
||||
/* Initialize the mapping dist (0..32K) -> dist code (0..29) */
|
||||
dist = 0;
|
||||
for (code = 0 ; code < 16; code++) {
|
||||
base_dist[code] = dist;
|
||||
for (n = 0; n < (1<<extra_dbits[code]); n++) {
|
||||
for (n = 0; n < (1 << extra_dbits[code]); n++) {
|
||||
_dist_code[dist++] = (uch)code;
|
||||
}
|
||||
}
|
||||
|
|
@ -279,11 +279,11 @@ local void tr_static_init()
|
|||
dist >>= 7; /* from now on, all distances are divided by 128 */
|
||||
for ( ; code < D_CODES; code++) {
|
||||
base_dist[code] = dist << 7;
|
||||
for (n = 0; n < (1<<(extra_dbits[code]-7)); n++) {
|
||||
for (n = 0; n < (1 << (extra_dbits[code] - 7)); n++) {
|
||||
_dist_code[256 + dist++] = (uch)code;
|
||||
}
|
||||
}
|
||||
Assert (dist == 256, "tr_static_init: 256+dist != 512");
|
||||
Assert (dist == 256, "tr_static_init: 256 + dist != 512");
|
||||
|
||||
/* Construct the codes of the static literal tree */
|
||||
for (bits = 0; bits <= MAX_BITS; bits++) bl_count[bits] = 0;
|
||||
|
|
@ -312,7 +312,7 @@ local void tr_static_init()
|
|||
}
|
||||
|
||||
/* ===========================================================================
|
||||
* Genererate the file trees.h describing the static trees.
|
||||
* Generate the file trees.h describing the static trees.
|
||||
*/
|
||||
#ifdef GEN_TREES_H
|
||||
# ifndef ZLIB_DEBUG
|
||||
|
|
@ -321,7 +321,7 @@ local void tr_static_init()
|
|||
|
||||
# define SEPARATOR(i, last, width) \
|
||||
((i) == (last)? "\n};\n\n" : \
|
||||
((i) % (width) == (width)-1 ? ",\n" : ", "))
|
||||
((i) % (width) == (width) - 1 ? ",\n" : ", "))
|
||||
|
||||
void gen_trees_header()
|
||||
{
|
||||
|
|
@ -458,7 +458,7 @@ local void pqdownheap(s, tree, k)
|
|||
while (j <= s->heap_len) {
|
||||
/* Set j to the smallest of the two sons: */
|
||||
if (j < s->heap_len &&
|
||||
smaller(tree, s->heap[j+1], s->heap[j], s->depth)) {
|
||||
smaller(tree, s->heap[j + 1], s->heap[j], s->depth)) {
|
||||
j++;
|
||||
}
|
||||
/* Exit if v is smaller than both sons */
|
||||
|
|
@ -507,7 +507,7 @@ local void gen_bitlen(s, desc)
|
|||
*/
|
||||
tree[s->heap[s->heap_max]].Len = 0; /* root of the heap */
|
||||
|
||||
for (h = s->heap_max+1; h < HEAP_SIZE; h++) {
|
||||
for (h = s->heap_max + 1; h < HEAP_SIZE; h++) {
|
||||
n = s->heap[h];
|
||||
bits = tree[tree[n].Dad].Len + 1;
|
||||
if (bits > max_length) bits = max_length, overflow++;
|
||||
|
|
@ -518,7 +518,7 @@ local void gen_bitlen(s, desc)
|
|||
|
||||
s->bl_count[bits]++;
|
||||
xbits = 0;
|
||||
if (n >= base) xbits = extra[n-base];
|
||||
if (n >= base) xbits = extra[n - base];
|
||||
f = tree[n].Freq;
|
||||
s->opt_len += (ulg)f * (unsigned)(bits + xbits);
|
||||
if (stree) s->static_len += (ulg)f * (unsigned)(stree[n].Len + xbits);
|
||||
|
|
@ -530,10 +530,10 @@ local void gen_bitlen(s, desc)
|
|||
|
||||
/* Find the first bit length which could increase: */
|
||||
do {
|
||||
bits = max_length-1;
|
||||
bits = max_length - 1;
|
||||
while (s->bl_count[bits] == 0) bits--;
|
||||
s->bl_count[bits]--; /* move one leaf down the tree */
|
||||
s->bl_count[bits+1] += 2; /* move one overflow item as its brother */
|
||||
s->bl_count[bits + 1] += 2; /* move one overflow item as its brother */
|
||||
s->bl_count[max_length]--;
|
||||
/* The brother of the overflow item also moves one step up,
|
||||
* but this does not affect bl_count[max_length]
|
||||
|
|
@ -569,7 +569,7 @@ local void gen_bitlen(s, desc)
|
|||
* OUT assertion: the field code is set for all tree elements of non
|
||||
* zero code length.
|
||||
*/
|
||||
local void gen_codes (tree, max_code, bl_count)
|
||||
local void gen_codes(tree, max_code, bl_count)
|
||||
ct_data *tree; /* the tree to decorate */
|
||||
int max_code; /* largest code with non zero frequency */
|
||||
ushf *bl_count; /* number of codes at each bit length */
|
||||
|
|
@ -583,13 +583,13 @@ local void gen_codes (tree, max_code, bl_count)
|
|||
* without bit reversal.
|
||||
*/
|
||||
for (bits = 1; bits <= MAX_BITS; bits++) {
|
||||
code = (code + bl_count[bits-1]) << 1;
|
||||
code = (code + bl_count[bits - 1]) << 1;
|
||||
next_code[bits] = (ush)code;
|
||||
}
|
||||
/* Check that the bit counts in bl_count are consistent. The last code
|
||||
* must be all ones.
|
||||
*/
|
||||
Assert (code + bl_count[MAX_BITS]-1 == (1<<MAX_BITS)-1,
|
||||
Assert (code + bl_count[MAX_BITS] - 1 == (1 << MAX_BITS) - 1,
|
||||
"inconsistent bit counts");
|
||||
Tracev((stderr,"\ngen_codes: max_code %d ", max_code));
|
||||
|
||||
|
|
@ -600,7 +600,7 @@ local void gen_codes (tree, max_code, bl_count)
|
|||
tree[n].Code = (ush)bi_reverse(next_code[len]++, len);
|
||||
|
||||
Tracecv(tree != static_ltree, (stderr,"\nn %3d %c l %2d c %4x (%x) ",
|
||||
n, (isgraph(n) ? n : ' '), len, tree[n].Code, next_code[len]-1));
|
||||
n, (isgraph(n) ? n : ' '), len, tree[n].Code, next_code[len] - 1));
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -624,7 +624,7 @@ local void build_tree(s, desc)
|
|||
int node; /* new node being created */
|
||||
|
||||
/* Construct the initial heap, with least frequent element in
|
||||
* heap[SMALLEST]. The sons of heap[n] are heap[2*n] and heap[2*n+1].
|
||||
* heap[SMALLEST]. The sons of heap[n] are heap[2*n] and heap[2*n + 1].
|
||||
* heap[0] is not used.
|
||||
*/
|
||||
s->heap_len = 0, s->heap_max = HEAP_SIZE;
|
||||
|
|
@ -652,7 +652,7 @@ local void build_tree(s, desc)
|
|||
}
|
||||
desc->max_code = max_code;
|
||||
|
||||
/* The elements heap[heap_len/2+1 .. heap_len] are leaves of the tree,
|
||||
/* The elements heap[heap_len/2 + 1 .. heap_len] are leaves of the tree,
|
||||
* establish sub-heaps of increasing lengths:
|
||||
*/
|
||||
for (n = s->heap_len/2; n >= 1; n--) pqdownheap(s, tree, n);
|
||||
|
|
@ -700,7 +700,7 @@ local void build_tree(s, desc)
|
|||
* Scan a literal or distance tree to determine the frequencies of the codes
|
||||
* in the bit length tree.
|
||||
*/
|
||||
local void scan_tree (s, tree, max_code)
|
||||
local void scan_tree(s, tree, max_code)
|
||||
deflate_state *s;
|
||||
ct_data *tree; /* the tree to be scanned */
|
||||
int max_code; /* and its largest code of non zero frequency */
|
||||
|
|
@ -714,10 +714,10 @@ local void scan_tree (s, tree, max_code)
|
|||
int min_count = 4; /* min repeat count */
|
||||
|
||||
if (nextlen == 0) max_count = 138, min_count = 3;
|
||||
tree[max_code+1].Len = (ush)0xffff; /* guard */
|
||||
tree[max_code + 1].Len = (ush)0xffff; /* guard */
|
||||
|
||||
for (n = 0; n <= max_code; n++) {
|
||||
curlen = nextlen; nextlen = tree[n+1].Len;
|
||||
curlen = nextlen; nextlen = tree[n + 1].Len;
|
||||
if (++count < max_count && curlen == nextlen) {
|
||||
continue;
|
||||
} else if (count < min_count) {
|
||||
|
|
@ -745,7 +745,7 @@ local void scan_tree (s, tree, max_code)
|
|||
* Send a literal or distance tree in compressed form, using the codes in
|
||||
* bl_tree.
|
||||
*/
|
||||
local void send_tree (s, tree, max_code)
|
||||
local void send_tree(s, tree, max_code)
|
||||
deflate_state *s;
|
||||
ct_data *tree; /* the tree to be scanned */
|
||||
int max_code; /* and its largest code of non zero frequency */
|
||||
|
|
@ -758,11 +758,11 @@ local void send_tree (s, tree, max_code)
|
|||
int max_count = 7; /* max repeat count */
|
||||
int min_count = 4; /* min repeat count */
|
||||
|
||||
/* tree[max_code+1].Len = -1; */ /* guard already set */
|
||||
/* tree[max_code + 1].Len = -1; */ /* guard already set */
|
||||
if (nextlen == 0) max_count = 138, min_count = 3;
|
||||
|
||||
for (n = 0; n <= max_code; n++) {
|
||||
curlen = nextlen; nextlen = tree[n+1].Len;
|
||||
curlen = nextlen; nextlen = tree[n + 1].Len;
|
||||
if (++count < max_count && curlen == nextlen) {
|
||||
continue;
|
||||
} else if (count < min_count) {
|
||||
|
|
@ -773,13 +773,13 @@ local void send_tree (s, tree, max_code)
|
|||
send_code(s, curlen, s->bl_tree); count--;
|
||||
}
|
||||
Assert(count >= 3 && count <= 6, " 3_6?");
|
||||
send_code(s, REP_3_6, s->bl_tree); send_bits(s, count-3, 2);
|
||||
send_code(s, REP_3_6, s->bl_tree); send_bits(s, count - 3, 2);
|
||||
|
||||
} else if (count <= 10) {
|
||||
send_code(s, REPZ_3_10, s->bl_tree); send_bits(s, count-3, 3);
|
||||
send_code(s, REPZ_3_10, s->bl_tree); send_bits(s, count - 3, 3);
|
||||
|
||||
} else {
|
||||
send_code(s, REPZ_11_138, s->bl_tree); send_bits(s, count-11, 7);
|
||||
send_code(s, REPZ_11_138, s->bl_tree); send_bits(s, count - 11, 7);
|
||||
}
|
||||
count = 0; prevlen = curlen;
|
||||
if (nextlen == 0) {
|
||||
|
|
@ -807,8 +807,8 @@ local int build_bl_tree(s)
|
|||
|
||||
/* Build the bit length tree: */
|
||||
build_tree(s, (tree_desc *)(&(s->bl_desc)));
|
||||
/* opt_len now includes the length of the tree representations, except
|
||||
* the lengths of the bit lengths codes and the 5+5+4 bits for the counts.
|
||||
/* opt_len now includes the length of the tree representations, except the
|
||||
* lengths of the bit lengths codes and the 5 + 5 + 4 bits for the counts.
|
||||
*/
|
||||
|
||||
/* Determine the number of bit length codes to send. The pkzip format
|
||||
|
|
@ -819,7 +819,7 @@ local int build_bl_tree(s)
|
|||
if (s->bl_tree[bl_order[max_blindex]].Len != 0) break;
|
||||
}
|
||||
/* Update opt_len to include the bit length tree and counts */
|
||||
s->opt_len += 3*((ulg)max_blindex+1) + 5+5+4;
|
||||
s->opt_len += 3*((ulg)max_blindex + 1) + 5 + 5 + 4;
|
||||
Tracev((stderr, "\ndyn trees: dyn %ld, stat %ld",
|
||||
s->opt_len, s->static_len));
|
||||
|
||||
|
|
@ -841,19 +841,19 @@ local void send_all_trees(s, lcodes, dcodes, blcodes)
|
|||
Assert (lcodes <= L_CODES && dcodes <= D_CODES && blcodes <= BL_CODES,
|
||||
"too many codes");
|
||||
Tracev((stderr, "\nbl counts: "));
|
||||
send_bits(s, lcodes-257, 5); /* not +255 as stated in appnote.txt */
|
||||
send_bits(s, dcodes-1, 5);
|
||||
send_bits(s, blcodes-4, 4); /* not -3 as stated in appnote.txt */
|
||||
send_bits(s, lcodes - 257, 5); /* not +255 as stated in appnote.txt */
|
||||
send_bits(s, dcodes - 1, 5);
|
||||
send_bits(s, blcodes - 4, 4); /* not -3 as stated in appnote.txt */
|
||||
for (rank = 0; rank < blcodes; rank++) {
|
||||
Tracev((stderr, "\nbl code %2d ", bl_order[rank]));
|
||||
send_bits(s, s->bl_tree[bl_order[rank]].Len, 3);
|
||||
}
|
||||
Tracev((stderr, "\nbl tree: sent %ld", s->bits_sent));
|
||||
|
||||
send_tree(s, (ct_data *)s->dyn_ltree, lcodes-1); /* literal tree */
|
||||
send_tree(s, (ct_data *)s->dyn_ltree, lcodes - 1); /* literal tree */
|
||||
Tracev((stderr, "\nlit tree: sent %ld", s->bits_sent));
|
||||
|
||||
send_tree(s, (ct_data *)s->dyn_dtree, dcodes-1); /* distance tree */
|
||||
send_tree(s, (ct_data *)s->dyn_dtree, dcodes - 1); /* distance tree */
|
||||
Tracev((stderr, "\ndist tree: sent %ld", s->bits_sent));
|
||||
}
|
||||
|
||||
|
|
@ -866,7 +866,7 @@ void ZLIB_INTERNAL _tr_stored_block(s, buf, stored_len, last)
|
|||
ulg stored_len; /* length of input block */
|
||||
int last; /* one if this is the last block for a file */
|
||||
{
|
||||
send_bits(s, (STORED_BLOCK<<1)+last, 3); /* send block type */
|
||||
send_bits(s, (STORED_BLOCK<<1) + last, 3); /* send block type */
|
||||
bi_windup(s); /* align on byte boundary */
|
||||
put_short(s, (ush)stored_len);
|
||||
put_short(s, (ush)~stored_len);
|
||||
|
|
@ -877,7 +877,7 @@ void ZLIB_INTERNAL _tr_stored_block(s, buf, stored_len, last)
|
|||
s->compressed_len = (s->compressed_len + 3 + 7) & (ulg)~7L;
|
||||
s->compressed_len += (stored_len + 4) << 3;
|
||||
s->bits_sent += 2*16;
|
||||
s->bits_sent += stored_len<<3;
|
||||
s->bits_sent += stored_len << 3;
|
||||
#endif
|
||||
}
|
||||
|
||||
|
|
@ -943,14 +943,17 @@ void ZLIB_INTERNAL _tr_flush_block(s, buf, stored_len, last)
|
|||
max_blindex = build_bl_tree(s);
|
||||
|
||||
/* Determine the best encoding. Compute the block lengths in bytes. */
|
||||
opt_lenb = (s->opt_len+3+7)>>3;
|
||||
static_lenb = (s->static_len+3+7)>>3;
|
||||
opt_lenb = (s->opt_len + 3 + 7) >> 3;
|
||||
static_lenb = (s->static_len + 3 + 7) >> 3;
|
||||
|
||||
Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ",
|
||||
opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len,
|
||||
s->sym_next / 3));
|
||||
|
||||
if (static_lenb <= opt_lenb) opt_lenb = static_lenb;
|
||||
#ifndef FORCE_STATIC
|
||||
if (static_lenb <= opt_lenb || s->strategy == Z_FIXED)
|
||||
#endif
|
||||
opt_lenb = static_lenb;
|
||||
|
||||
} else {
|
||||
Assert(buf != (char*)0, "lost buf");
|
||||
|
|
@ -960,7 +963,7 @@ void ZLIB_INTERNAL _tr_flush_block(s, buf, stored_len, last)
|
|||
#ifdef FORCE_STORED
|
||||
if (buf != (char*)0) { /* force stored block */
|
||||
#else
|
||||
if (stored_len+4 <= opt_lenb && buf != (char*)0) {
|
||||
if (stored_len + 4 <= opt_lenb && buf != (char*)0) {
|
||||
/* 4: two words for the lengths */
|
||||
#endif
|
||||
/* The test buf != NULL is only necessary if LIT_BUFSIZE > WSIZE.
|
||||
|
|
@ -971,21 +974,17 @@ void ZLIB_INTERNAL _tr_flush_block(s, buf, stored_len, last)
|
|||
*/
|
||||
_tr_stored_block(s, buf, stored_len, last);
|
||||
|
||||
#ifdef FORCE_STATIC
|
||||
} else if (static_lenb >= 0) { /* force static trees */
|
||||
#else
|
||||
} else if (s->strategy == Z_FIXED || static_lenb == opt_lenb) {
|
||||
#endif
|
||||
send_bits(s, (STATIC_TREES<<1)+last, 3);
|
||||
} else if (static_lenb == opt_lenb) {
|
||||
send_bits(s, (STATIC_TREES<<1) + last, 3);
|
||||
compress_block(s, (const ct_data *)static_ltree,
|
||||
(const ct_data *)static_dtree);
|
||||
#ifdef ZLIB_DEBUG
|
||||
s->compressed_len += 3 + s->static_len;
|
||||
#endif
|
||||
} else {
|
||||
send_bits(s, (DYN_TREES<<1)+last, 3);
|
||||
send_all_trees(s, s->l_desc.max_code+1, s->d_desc.max_code+1,
|
||||
max_blindex+1);
|
||||
send_bits(s, (DYN_TREES<<1) + last, 3);
|
||||
send_all_trees(s, s->l_desc.max_code + 1, s->d_desc.max_code + 1,
|
||||
max_blindex + 1);
|
||||
compress_block(s, (const ct_data *)s->dyn_ltree,
|
||||
(const ct_data *)s->dyn_dtree);
|
||||
#ifdef ZLIB_DEBUG
|
||||
|
|
@ -1004,22 +1003,22 @@ void ZLIB_INTERNAL _tr_flush_block(s, buf, stored_len, last)
|
|||
s->compressed_len += 7; /* align on byte boundary */
|
||||
#endif
|
||||
}
|
||||
Tracev((stderr,"\ncomprlen %lu(%lu) ", s->compressed_len>>3,
|
||||
s->compressed_len-7*last));
|
||||
Tracev((stderr,"\ncomprlen %lu(%lu) ", s->compressed_len >> 3,
|
||||
s->compressed_len - 7*last));
|
||||
}
|
||||
|
||||
/* ===========================================================================
|
||||
* Save the match info and tally the frequency counts. Return true if
|
||||
* the current block must be flushed.
|
||||
*/
|
||||
int ZLIB_INTERNAL _tr_tally (s, dist, lc)
|
||||
int ZLIB_INTERNAL _tr_tally(s, dist, lc)
|
||||
deflate_state *s;
|
||||
unsigned dist; /* distance of matched string */
|
||||
unsigned lc; /* match length-MIN_MATCH or unmatched char (if dist==0) */
|
||||
unsigned lc; /* match length - MIN_MATCH or unmatched char (dist==0) */
|
||||
{
|
||||
s->sym_buf[s->sym_next++] = dist;
|
||||
s->sym_buf[s->sym_next++] = dist >> 8;
|
||||
s->sym_buf[s->sym_next++] = lc;
|
||||
s->sym_buf[s->sym_next++] = (uch)dist;
|
||||
s->sym_buf[s->sym_next++] = (uch)(dist >> 8);
|
||||
s->sym_buf[s->sym_next++] = (uch)lc;
|
||||
if (dist == 0) {
|
||||
/* lc is the unmatched char */
|
||||
s->dyn_ltree[lc].Freq++;
|
||||
|
|
@ -1031,7 +1030,7 @@ int ZLIB_INTERNAL _tr_tally (s, dist, lc)
|
|||
(ush)lc <= (ush)(MAX_MATCH-MIN_MATCH) &&
|
||||
(ush)d_code(dist) < (ush)D_CODES, "_tr_tally: bad match");
|
||||
|
||||
s->dyn_ltree[_length_code[lc]+LITERALS+1].Freq++;
|
||||
s->dyn_ltree[_length_code[lc] + LITERALS + 1].Freq++;
|
||||
s->dyn_dtree[d_code(dist)].Freq++;
|
||||
}
|
||||
return (s->sym_next == s->sym_end);
|
||||
|
|
@ -1061,7 +1060,7 @@ local void compress_block(s, ltree, dtree)
|
|||
} else {
|
||||
/* Here, lc is the match length - MIN_MATCH */
|
||||
code = _length_code[lc];
|
||||
send_code(s, code+LITERALS+1, ltree); /* send the length code */
|
||||
send_code(s, code + LITERALS + 1, ltree); /* send length code */
|
||||
extra = extra_lbits[code];
|
||||
if (extra != 0) {
|
||||
lc -= base_length[code];
|
||||
|
|
@ -1177,6 +1176,6 @@ local void bi_windup(s)
|
|||
s->bi_buf = 0;
|
||||
s->bi_valid = 0;
|
||||
#ifdef ZLIB_DEBUG
|
||||
s->bits_sent = (s->bits_sent+7) & ~7;
|
||||
s->bits_sent = (s->bits_sent + 7) & ~7;
|
||||
#endif
|
||||
}
|
||||
|
|
|
|||
|
|
@ -24,7 +24,7 @@
|
|||
Z_DATA_ERROR if the input data was corrupted, including if the input data is
|
||||
an incomplete zlib stream.
|
||||
*/
|
||||
int ZEXPORT uncompress2 (dest, destLen, source, sourceLen)
|
||||
int ZEXPORT uncompress2(dest, destLen, source, sourceLen)
|
||||
Bytef *dest;
|
||||
uLongf *destLen;
|
||||
const Bytef *source;
|
||||
|
|
@ -83,7 +83,7 @@ int ZEXPORT uncompress2 (dest, destLen, source, sourceLen)
|
|||
err;
|
||||
}
|
||||
|
||||
int ZEXPORT uncompress (dest, destLen, source, sourceLen)
|
||||
int ZEXPORT uncompress(dest, destLen, source, sourceLen)
|
||||
Bytef *dest;
|
||||
uLongf *destLen;
|
||||
const Bytef *source;
|
||||
|
|
|
|||
|
|
@ -26,7 +26,7 @@ BEGIN
|
|||
VALUE "FileDescription", "zlib data compression library\0"
|
||||
VALUE "FileVersion", ZLIB_VERSION "\0"
|
||||
VALUE "InternalName", "zlib1.dll\0"
|
||||
VALUE "LegalCopyright", "(C) 1995-2017 Jean-loup Gailly & Mark Adler\0"
|
||||
VALUE "LegalCopyright", "(C) 1995-2022 Jean-loup Gailly & Mark Adler\0"
|
||||
VALUE "OriginalFilename", "zlib1.dll\0"
|
||||
VALUE "ProductName", "zlib\0"
|
||||
VALUE "ProductVersion", ZLIB_VERSION "\0"
|
||||
|
|
|
|||
|
|
@ -38,6 +38,9 @@
|
|||
# define crc32 z_crc32
|
||||
# define crc32_combine z_crc32_combine
|
||||
# define crc32_combine64 z_crc32_combine64
|
||||
# define crc32_combine_gen z_crc32_combine_gen
|
||||
# define crc32_combine_gen64 z_crc32_combine_gen64
|
||||
# define crc32_combine_op z_crc32_combine_op
|
||||
# define crc32_z z_crc32_z
|
||||
# define deflate z_deflate
|
||||
# define deflateBound z_deflateBound
|
||||
|
|
@ -349,6 +352,9 @@
|
|||
# ifdef FAR
|
||||
# undef FAR
|
||||
# endif
|
||||
# ifndef WIN32_LEAN_AND_MEAN
|
||||
# define WIN32_LEAN_AND_MEAN
|
||||
# endif
|
||||
# include <windows.h>
|
||||
/* No need for _export, use ZLIB.DEF instead. */
|
||||
/* For complete Windows compatibility, use WINAPI, not __stdcall. */
|
||||
|
|
@ -467,11 +473,18 @@ typedef uLong FAR uLongf;
|
|||
# undef _LARGEFILE64_SOURCE
|
||||
#endif
|
||||
|
||||
#if defined(__WATCOMC__) && !defined(Z_HAVE_UNISTD_H)
|
||||
#ifndef Z_HAVE_UNISTD_H
|
||||
# ifdef __WATCOMC__
|
||||
# define Z_HAVE_UNISTD_H
|
||||
# endif
|
||||
#endif
|
||||
#ifndef Z_HAVE_UNISTD_H
|
||||
# if defined(_LARGEFILE64_SOURCE) && !defined(_WIN32)
|
||||
# define Z_HAVE_UNISTD_H
|
||||
# endif
|
||||
#endif
|
||||
#ifndef Z_SOLO
|
||||
# if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE)
|
||||
# if defined(Z_HAVE_UNISTD_H)
|
||||
# include <unistd.h> /* for SEEK_*, off_t, and _LFS64_LARGEFILE */
|
||||
# ifdef VMS
|
||||
# include <unixio.h> /* for off_t */
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
.TH ZLIB 3 "15 Jan 2017"
|
||||
.TH ZLIB 3 "13 Oct 2022"
|
||||
.SH NAME
|
||||
zlib \- compression/decompression library
|
||||
.SH SYNOPSIS
|
||||
|
|
@ -105,9 +105,9 @@ before asking for help.
|
|||
Send questions and/or comments to zlib@gzip.org,
|
||||
or (for the Windows DLL version) to Gilles Vollant (info@winimage.com).
|
||||
.SH AUTHORS AND LICENSE
|
||||
Version 1.2.11
|
||||
Version 1.2.13
|
||||
.LP
|
||||
Copyright (C) 1995-2017 Jean-loup Gailly and Mark Adler
|
||||
Copyright (C) 1995-2022 Jean-loup Gailly and Mark Adler
|
||||
.LP
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
|
|
|
|||
Binary file not shown.
|
|
@ -1,5 +1,5 @@
|
|||
/* zlib.h -- interface of the 'zlib' general purpose compression library
|
||||
version 1.2.12, March 11th, 2022
|
||||
version 1.2.13, October 13th, 2022
|
||||
|
||||
Copyright (C) 1995-2022 Jean-loup Gailly and Mark Adler
|
||||
|
||||
|
|
@ -37,11 +37,11 @@
|
|||
extern "C" {
|
||||
#endif
|
||||
|
||||
#define ZLIB_VERSION "1.2.12"
|
||||
#define ZLIB_VERNUM 0x12c0
|
||||
#define ZLIB_VERSION "1.2.13"
|
||||
#define ZLIB_VERNUM 0x12d0
|
||||
#define ZLIB_VER_MAJOR 1
|
||||
#define ZLIB_VER_MINOR 2
|
||||
#define ZLIB_VER_REVISION 12
|
||||
#define ZLIB_VER_REVISION 13
|
||||
#define ZLIB_VER_SUBREVISION 0
|
||||
|
||||
/*
|
||||
|
|
@ -276,7 +276,7 @@ ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush));
|
|||
== 0), or after each call of deflate(). If deflate returns Z_OK and with
|
||||
zero avail_out, it must be called again after making room in the output
|
||||
buffer because there might be more output pending. See deflatePending(),
|
||||
which can be used if desired to determine whether or not there is more ouput
|
||||
which can be used if desired to determine whether or not there is more output
|
||||
in that case.
|
||||
|
||||
Normally the parameter flush is set to Z_NO_FLUSH, which allows deflate to
|
||||
|
|
@ -660,7 +660,7 @@ ZEXTERN int ZEXPORT deflateGetDictionary OF((z_streamp strm,
|
|||
to dictionary. dictionary must have enough space, where 32768 bytes is
|
||||
always enough. If deflateGetDictionary() is called with dictionary equal to
|
||||
Z_NULL, then only the dictionary length is returned, and nothing is copied.
|
||||
Similary, if dictLength is Z_NULL, then it is not set.
|
||||
Similarly, if dictLength is Z_NULL, then it is not set.
|
||||
|
||||
deflateGetDictionary() may return a length less than the window size, even
|
||||
when more than the window size in input has been provided. It may return up
|
||||
|
|
@ -915,7 +915,7 @@ ZEXTERN int ZEXPORT inflateGetDictionary OF((z_streamp strm,
|
|||
to dictionary. dictionary must have enough space, where 32768 bytes is
|
||||
always enough. If inflateGetDictionary() is called with dictionary equal to
|
||||
Z_NULL, then only the dictionary length is returned, and nothing is copied.
|
||||
Similary, if dictLength is Z_NULL, then it is not set.
|
||||
Similarly, if dictLength is Z_NULL, then it is not set.
|
||||
|
||||
inflateGetDictionary returns Z_OK on success, or Z_STREAM_ERROR if the
|
||||
stream state is inconsistent.
|
||||
|
|
@ -1437,12 +1437,12 @@ ZEXTERN z_size_t ZEXPORT gzfread OF((voidp buf, z_size_t size, z_size_t nitems,
|
|||
|
||||
In the event that the end of file is reached and only a partial item is
|
||||
available at the end, i.e. the remaining uncompressed data length is not a
|
||||
multiple of size, then the final partial item is nevetheless read into buf
|
||||
multiple of size, then the final partial item is nevertheless read into buf
|
||||
and the end-of-file flag is set. The length of the partial item read is not
|
||||
provided, but could be inferred from the result of gztell(). This behavior
|
||||
is the same as the behavior of fread() implementations in common libraries,
|
||||
but it prevents the direct use of gzfread() to read a concurrently written
|
||||
file, reseting and retrying on end-of-file, when size is not 1.
|
||||
file, resetting and retrying on end-of-file, when size is not 1.
|
||||
*/
|
||||
|
||||
ZEXTERN int ZEXPORT gzwrite OF((gzFile file, voidpc buf, unsigned len));
|
||||
|
|
@ -1913,7 +1913,7 @@ ZEXTERN int ZEXPORT inflateSyncPoint OF((z_streamp));
|
|||
ZEXTERN const z_crc_t FAR * ZEXPORT get_crc_table OF((void));
|
||||
ZEXTERN int ZEXPORT inflateUndermine OF((z_streamp, int));
|
||||
ZEXTERN int ZEXPORT inflateValidate OF((z_streamp, int));
|
||||
ZEXTERN unsigned long ZEXPORT inflateCodesUsed OF ((z_streamp));
|
||||
ZEXTERN unsigned long ZEXPORT inflateCodesUsed OF((z_streamp));
|
||||
ZEXTERN int ZEXPORT inflateResetKeep OF((z_streamp));
|
||||
ZEXTERN int ZEXPORT deflateResetKeep OF((z_streamp));
|
||||
#if defined(_WIN32) && !defined(Z_SOLO)
|
||||
|
|
|
|||
|
|
@ -61,9 +61,11 @@ uLong ZEXPORT zlibCompileFlags()
|
|||
#ifdef ZLIB_DEBUG
|
||||
flags += 1 << 8;
|
||||
#endif
|
||||
/*
|
||||
#if defined(ASMV) || defined(ASMINF)
|
||||
flags += 1 << 9;
|
||||
#endif
|
||||
*/
|
||||
#ifdef ZLIB_WINAPI
|
||||
flags += 1 << 10;
|
||||
#endif
|
||||
|
|
@ -119,7 +121,7 @@ uLong ZEXPORT zlibCompileFlags()
|
|||
# endif
|
||||
int ZLIB_INTERNAL z_verbose = verbose;
|
||||
|
||||
void ZLIB_INTERNAL z_error (m)
|
||||
void ZLIB_INTERNAL z_error(m)
|
||||
char *m;
|
||||
{
|
||||
fprintf(stderr, "%s\n", m);
|
||||
|
|
@ -214,7 +216,7 @@ local ptr_table table[MAX_PTR];
|
|||
* a protected system like OS/2. Use Microsoft C instead.
|
||||
*/
|
||||
|
||||
voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, unsigned items, unsigned size)
|
||||
voidpf ZLIB_INTERNAL zcalloc(voidpf opaque, unsigned items, unsigned size)
|
||||
{
|
||||
voidpf buf;
|
||||
ulg bsize = (ulg)items*size;
|
||||
|
|
@ -240,7 +242,7 @@ voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, unsigned items, unsigned size)
|
|||
return buf;
|
||||
}
|
||||
|
||||
void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr)
|
||||
void ZLIB_INTERNAL zcfree(voidpf opaque, voidpf ptr)
|
||||
{
|
||||
int n;
|
||||
|
||||
|
|
@ -277,13 +279,13 @@ void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr)
|
|||
# define _hfree hfree
|
||||
#endif
|
||||
|
||||
voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, uInt items, uInt size)
|
||||
voidpf ZLIB_INTERNAL zcalloc(voidpf opaque, uInt items, uInt size)
|
||||
{
|
||||
(void)opaque;
|
||||
return _halloc((long)items, size);
|
||||
}
|
||||
|
||||
void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr)
|
||||
void ZLIB_INTERNAL zcfree(voidpf opaque, voidpf ptr)
|
||||
{
|
||||
(void)opaque;
|
||||
_hfree(ptr);
|
||||
|
|
@ -302,7 +304,7 @@ extern voidp calloc OF((uInt items, uInt size));
|
|||
extern void free OF((voidpf ptr));
|
||||
#endif
|
||||
|
||||
voidpf ZLIB_INTERNAL zcalloc (opaque, items, size)
|
||||
voidpf ZLIB_INTERNAL zcalloc(opaque, items, size)
|
||||
voidpf opaque;
|
||||
unsigned items;
|
||||
unsigned size;
|
||||
|
|
@ -312,7 +314,7 @@ voidpf ZLIB_INTERNAL zcalloc (opaque, items, size)
|
|||
(voidpf)calloc(items, size);
|
||||
}
|
||||
|
||||
void ZLIB_INTERNAL zcfree (opaque, ptr)
|
||||
void ZLIB_INTERNAL zcfree(opaque, ptr)
|
||||
voidpf opaque;
|
||||
voidpf ptr;
|
||||
{
|
||||
|
|
|
|||
|
|
@ -193,6 +193,7 @@ extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
|
|||
(!defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0)
|
||||
ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t));
|
||||
ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t));
|
||||
ZEXTERN uLong ZEXPORT crc32_combine_gen64 OF((z_off_t));
|
||||
#endif
|
||||
|
||||
/* common defaults */
|
||||
|
|
|
|||
Loading…
Reference in a new issue