mirror of
https://github.com/ZDoom/qzdoom.git
synced 2024-11-14 08:30:49 +00:00
115 lines
5.1 KiB
Text
115 lines
5.1 KiB
Text
ZLIB DATA COMPRESSION LIBRARY
|
|
|
|
zlib 1.2.8 is a general purpose data compression library. All the code is
|
|
thread safe. The data format used by the zlib library is described by RFCs
|
|
(Request for Comments) 1950 to 1952 in the files
|
|
http://tools.ietf.org/html/rfc1950 (zlib format), rfc1951 (deflate format) and
|
|
rfc1952 (gzip format).
|
|
|
|
All functions of the compression library are documented in the file zlib.h
|
|
(volunteer to write man pages welcome, contact zlib@gzip.org). A usage example
|
|
of the library is given in the file test/example.c which also tests that
|
|
the library is working correctly. Another example is given in the file
|
|
test/minigzip.c. The compression library itself is composed of all source
|
|
files in the root directory.
|
|
|
|
To compile all files and run the test program, follow the instructions given at
|
|
the top of Makefile.in. In short "./configure; make test", and if that goes
|
|
well, "make install" should work for most flavors of Unix. For Windows, use
|
|
one of the special makefiles in win32/ or contrib/vstudio/ . For VMS, use
|
|
make_vms.com.
|
|
|
|
Questions about zlib should be sent to <zlib@gzip.org>, or to Gilles Vollant
|
|
<info@winimage.com> for the Windows DLL version. The zlib home page is
|
|
http://zlib.net/ . Before reporting a problem, please check this site to
|
|
verify that you have the latest version of zlib; otherwise get the latest
|
|
version and check whether the problem still exists or not.
|
|
|
|
PLEASE read the zlib FAQ http://zlib.net/zlib_faq.html before asking for help.
|
|
|
|
Mark Nelson <markn@ieee.org> wrote an article about zlib for the Jan. 1997
|
|
issue of Dr. Dobb's Journal; a copy of the article is available at
|
|
http://marknelson.us/1997/01/01/zlib-engine/ .
|
|
|
|
The changes made in version 1.2.8 are documented in the file ChangeLog.
|
|
|
|
Unsupported third party contributions are provided in directory contrib/ .
|
|
|
|
zlib is available in Java using the java.util.zip package, documented at
|
|
http://java.sun.com/developer/technicalArticles/Programming/compression/ .
|
|
|
|
A Perl interface to zlib written by Paul Marquess <pmqs@cpan.org> is available
|
|
at CPAN (Comprehensive Perl Archive Network) sites, including
|
|
http://search.cpan.org/~pmqs/IO-Compress-Zlib/ .
|
|
|
|
A Python interface to zlib written by A.M. Kuchling <amk@amk.ca> is
|
|
available in Python 1.5 and later versions, see
|
|
http://docs.python.org/library/zlib.html .
|
|
|
|
zlib is built into tcl: http://wiki.tcl.tk/4610 .
|
|
|
|
An experimental package to read and write files in .zip format, written on top
|
|
of zlib by Gilles Vollant <info@winimage.com>, is available in the
|
|
contrib/minizip directory of zlib.
|
|
|
|
|
|
Notes for some targets:
|
|
|
|
- For Windows DLL versions, please see win32/DLL_FAQ.txt
|
|
|
|
- For 64-bit Irix, deflate.c must be compiled without any optimization. With
|
|
-O, one libpng test fails. The test works in 32 bit mode (with the -n32
|
|
compiler flag). The compiler bug has been reported to SGI.
|
|
|
|
- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 it works
|
|
when compiled with cc.
|
|
|
|
- On Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1 is
|
|
necessary to get gzprintf working correctly. This is done by configure.
|
|
|
|
- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works with
|
|
other compilers. Use "make test" to check your compiler.
|
|
|
|
- gzdopen is not supported on RISCOS or BEOS.
|
|
|
|
- For PalmOs, see http://palmzlib.sourceforge.net/
|
|
|
|
|
|
Acknowledgments:
|
|
|
|
The deflate format used by zlib was defined by Phil Katz. The deflate and
|
|
zlib specifications were written by L. Peter Deutsch. Thanks to all the
|
|
people who reported problems and suggested various improvements in zlib; they
|
|
are too numerous to cite here.
|
|
|
|
Copyright notice:
|
|
|
|
(C) 1995-2013 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
|
|
arising from the use of this software.
|
|
|
|
Permission is granted to anyone to use this software for any purpose,
|
|
including commercial applications, and to alter it and redistribute it
|
|
freely, subject to the following restrictions:
|
|
|
|
1. The origin of this software must not be misrepresented; you must not
|
|
claim that you wrote the original software. If you use this software
|
|
in a product, an acknowledgment in the product documentation would be
|
|
appreciated but is not required.
|
|
2. Altered source versions must be plainly marked as such, and must not be
|
|
misrepresented as being the original software.
|
|
3. This notice may not be removed or altered from any source distribution.
|
|
|
|
Jean-loup Gailly Mark Adler
|
|
jloup@gzip.org madler@alumni.caltech.edu
|
|
|
|
If you use the zlib library in a product, we would appreciate *not* receiving
|
|
lengthy legal documents to sign. The sources are provided for free but without
|
|
warranty of any kind. The library has been entirely written by Jean-loup
|
|
Gailly and Mark Adler; it does not include third-party code.
|
|
|
|
If you redistribute modified sources, we would appreciate that you include in
|
|
the file ChangeLog history information documenting your changes. Please read
|
|
the FAQ for more information on the distribution of modified source versions.
|