Commit Graph

19 Commits

Author SHA1 Message Date
Mark Adler 21767c654d zlib 1.2.12 2022-03-27 16:05:02 -07:00
Mark Adler 2fa463bacf zlib 1.2.9 2016-12-31 23:37:10 -08:00
Mark Adler 0aac8cf7c4 Clean up the addition of gzvprintf. 2013-03-23 23:47:15 -07:00
Mark Adler f0546c8e34 Clean up the addition of inflateGetDictionary. 2013-03-23 23:32:58 -07:00
Mark Adler dca9e1d6f3 Add inflateGetDictionary() function. 2012-05-26 23:25:35 -07:00
Mark Adler d81e7213b7 Restore gzgetc_ for backward compatibility with 1.2.6. 2012-02-18 14:15:17 -08:00
Mark Adler 455adc3029 Expunge gzgetc_ from configuration files. 2012-02-13 23:34:48 -08:00
Mark Adler 55b8b5fec1 Put gzflags() functionality back in zutil.c.
gzflags() was put in gzwrite.c in order to be compiled exactly the
same as gzprintf(), so that it was guaranteed to return the correct
information.  However that causes a static linkage to zlib to bring
in many routines that are often not used.  All that is required to
duplicate the compilation environment of gzprintf() is to include
gzguts.h.  So that is now done in zutil.c to assure that the correct
flags are returned.
2012-02-01 23:25:34 -08:00
Mark Adler 68a02240a6 Correct in zlib.map when deflateResetKeep was added. 2012-01-29 09:57:58 -08:00
Mark Adler afe7cf78d5 Enable dictionary setting in middle of stream, and keeping the dictionary.
This patch adds the deflateResetKeep() function to retain the sliding
window for the next deflate operation, and fixes an inflateResetKeep()
problem that came from inflate() not updating the window when the
stream completed.  This enables constructing and decompressing a series
of concatenated deflate streams where each can depend on the history of
uncompressed data that precedes it.

This generalizes deflateSetDictionary() and inflateSetDictionary() to
permit setting the dictionary in the middle of a stream for raw deflate
and inflate.  This in combination with the Keep functions enables a
scheme for updating files block by block with the transmission of
compressed data, where blocks are sent with deflateResetKeep() to
retain history for better compression, and deflateSetDictionary() is
used for blocks already present at the receiver to skip compression but
insert that data in the history, again for better compression.  The
corresponding inflate calls are done on the receiver side.
2011-12-08 00:13:52 -08:00
Mark Adler 77b47d55f1 Add undocumented inflateResetKeep() function for CAB file decoding.
The Microsoft CAB file format compresses each block with completed
deflate streams that depend on the sliding window history of the
previous block in order to decode.  inflateResetKeep() does what
inflateReset() does, except the sliding window history from the
previous inflate operation is retained.
2011-10-07 23:13:37 -07:00
Mark Adler 00c836e325 Merge vestigial vsnprintf determination from zutil.h to gzguts.h.
This also moves some of the same from zconf.h to gzguts.h. A new
function, gzflags(), was created to pass the compilation flags
related to vsnprintf usage back to zlibCompileFlags() in zutil.c.
In the process, various compiler configuration files were updated
to include gzflags(), as well as the new gzgetc_() function added
when the gzgetc() macro was introduced in a previous patch.
2011-10-02 11:15:00 -07:00
Török Edwin d07d852bb4 fix ld error: unable to find version dependency `ZLIB_1.2.5' 2011-09-11 11:22:07 -07:00
Mark Adler 10daf0d4d7 zlib 1.2.5.1 2011-09-11 11:04:49 -07:00
Mark Adler 7751bd4c71 zlib 1.2.3.9 2011-09-09 23:27:26 -07:00
Mark Adler e0ff940e1a zlib 1.2.3.8 2011-09-09 23:27:17 -07:00
Mark Adler dc5a43ebfa zlib 1.2.3.6 2011-09-09 23:26:58 -07:00
Mark Adler f6194ef39a zlib 1.2.3.4 2011-09-09 23:26:40 -07:00
Mark Adler b1c19ca6d8 zlib 1.2.3.1 2011-09-09 23:25:27 -07:00