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zlib support; also internal compression changes

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o Add support for zlib compression via ZLIB_COMP in config.h (ZLIB_COMP
  and COMPRESS are mutually exclusive).
o rlecomp and zerocomp are run time options available if RLECOMP and
  ZEROCOMP are defined, but not turned on by default if either COMPRESS
  or ZLIB_COMP are defined.
o Add information to the save file about internal compression options
  used when writing the save file, particularly rlecomp and zerocomp
  support.
o Automatically adjust rlecomp and zerocomp (if support compiled in)
  when reading in an existing savefile that was saved with those options
  turned on.  Still allows writing out of savefile in preferred format.
o In order to support zlib and not conflict with compress and uncompress
  routines there, the NetHack internal functions were changed to
  nh_uncompress and nh_compress as done in the zlib contribution received
  in 1999 from <Someone>.

I tagged the sources NETHACK_3_5_0_PREZLIB prior to applying these
changes.
This commit is contained in:
nethack.allison
2005-01-22 15:28:15 +00:00
parent c40d876c3b
commit ab1872b928
20 changed files with 982 additions and 263 deletions
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12
doc/Guidebook.tex
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@@ -27,7 +27,7 @@
\begin{document}
%
% input file: guidebook.mn
% $Revision: 1.89 $ $Date: 2005/01/09 21:40:02 $
% $Revision: 1.90 $ $Date: 2005/01/16 03:57:39 $
%
%.ds h0 "
%.ds h1 %.ds h2 \%
@@ -2554,6 +2554,11 @@ value is examined; `r' is an exception with ``{\tt Rogue}'', {\tt Ranger}'',
and ``{\tt random}'' values. If you prefix `{\tt !}' or ``{\tt no}'' to the
value, you can exclude that role from being picked randomly.
%.lp
\item[\ib{rlecomp}]
When writing out a save file, perform run length compression of level
structures. Not all ports support run length compression. It has no
effect on reading an existing save file.
%.lp
\item[\ib{runmode}]
Controls the amount of screen updating for the map window when engaged
in multi-turn movement (running via {\tt shift}+direction
@@ -2658,6 +2663,11 @@ Provide more commentary during the game (default on).
Select which windowing system to use, such as ``{\tt tty}'' or ``{\tt X11}''
(default depends on version).
Cannot be set with the `{\tt O}' command.
%.lp
\item[\ib{zerocomp}]
When writing out a save file, perform zero-comp compression of the
contents. Not all ports support zero-comp compression. It has no effect
on reading an existing save file.
\elist
%.hn 2