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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
..
vc9 Enable dictionary setting in middle of stream, and keeping the dictionary. 2011-12-08 00:13:52 -08:00
vc10 Enable dictionary setting in middle of stream, and keeping the dictionary. 2011-12-08 00:13:52 -08:00
readme.txt zlib 1.2.4-pre1 2011-09-09 23:32:36 -07:00

readme.txt 

Building instructions for the DLL versions of Zlib 1.2.4
========================================================

This directory contains projects that build zlib and minizip using
Microsoft Visual C++ 9.0/10.0, and Visual C++ .

You don't need to build these projects yourself. You can download the
binaries from:
  http://www.winimage.com/zLibDll

More information can be found at this site.

first compile assembly code by running
bld_ml64.bat in contrib\masmx64
bld_ml32.bat in contrib\masmx86




Build instructions for Visual Studio 2008 (32 bits or 64 bits)
--------------------------------------------------------------
- Uncompress current zlib, including all contrib/* files
- Open contrib\vstudio\vc9\zlibvc.sln with Microsoft Visual C++ 2008.0
- Or run: vcbuild /rebuild contrib\vstudio\vc9\zlibvc.sln "Release|Win32"

Build instructions for Visual Studio 2010 (32 bits or 64 bits)
--------------------------------------------------------------
- Uncompress current zlib, including all contrib/* files
- Open contrib\vstudio\vc10\zlibvc.sln with Microsoft Visual C++ 2010.0


Important
---------
- To use zlibwapi.dll in your application, you must define the
  macro ZLIB_WINAPI when compiling your application's source files.


Additional notes
----------------
- This DLL, named zlibwapi.dll, is compatible to the old zlib.dll built
  by Gilles Vollant from the zlib 1.1.x sources, and distributed at
    http://www.winimage.com/zLibDll
  It uses the WINAPI calling convention for the exported functions, and
  includes the minizip functionality. If your application needs that
  particular build of zlib.dll, you can rename zlibwapi.dll to zlib.dll.

- The new DLL was renamed because there exist several incompatible
  versions of zlib.dll on the Internet.

- There is also an official DLL build of zlib, named zlib1.dll. This one
  is exporting the functions using the CDECL convention. See the file
  win32\DLL_FAQ.txt found in this zlib distribution.

- There used to be a ZLIB_DLL macro in zlib 1.1.x, but now this symbol
  has a slightly different effect. To avoid compatibility problems, do
  not define it here.


Gilles Vollant
info@winimage.com