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ReadMe
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1992-11-05
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======================================
XPK - The external compression library
======================================
This is distribution 2.4 of the xpk compression package. The following
files are part of this archive:
LIESMICH
README
Overview of files in archive, German and English.
libs/xpkmaster.library
libs/powerpacker.library
libs/iff.library
xpkmaster.library is the main library. It's the interface between programs
and compression libs. Using powerpacker.library, the masterlib can also
decompress powerpacker files. iff.library has been adapted to XPK so
programs that use it will automatically decompress XPK files. Copy these
files to LIBS: using the Install script from Workbench or CLI.
libs/compressors/xpkBLZW.library
libs/compressors/xpkNONE.library
libs/compressors/xpkNUKE.library
libs/compressors/xpkRLEN.library
libs/compressors/xpkIMPL.library
libs/compressors/xpkENCO.library
These are the compression libs. You must create a compressors/ directory
withing LIBS: and copy them there. Here's a quick overview of their
properties:
+---------------------------------------------------------+
| CF CSpeed USpeed Modes |
| NUKE + + ++ n |
| IMPL + 0 + y |
| BLZW 0 ++ + y |
| RLEN - ++ ++ n |
| NONE -- ++ ++ n |
+---------------------------------------------------------+
ENCO is a very simple encoding library, RLEN very simple compression
(both mainly programming examples) and NONE does just nothing.
Docs/BLZW.doc
Docs/FEAL.doc
Docs/HUFF.doc
Docs/IDEA.doc
Docs/NUKE.doc
Descriptions of those compressors.
Shell/README
Shell/xDir
Shell/xDisk
Shell/xLoadSeg
Shell/xPK
Shell/xQuery
Shell/xType
Shell/xUP
The shell-based XPK programs. See README inside
Workbench/xDrop
Workbench/xDrop.doc
Workbench/ShowIFF
Workbench/ShowIFF.doc
Workbench/MoviePRO
Workbench/MoviePRO.doc
xDrop requires OS 2.0. It opens an App-Icon on the WB screen which you can
drag files on. They get compressed and their uncompressed original gets
deleted. Double-click on the app-icon to get a control panel. ShowIFF
is the well-known IFF displayer, now can decompress XPK-files thanks to
the new iff.library. MoviePro does the same for anims.
XFH/
XFH is a decompressing file handle for XPK. It makes the files on a
partition appear as though they were uncompressed. The way to go
(decompression only):
Assign XFH0: DH1:
Mount XH0: from Mountlist
After that you can use XH0: just like DH1:, but files are decompressed
on the fly. You may of course use several XFH partitions, read the
documentation.
---------
COPYRIGHT
---------
XPK is copyrighted by its authors. It may be used for non-commercial
purposes. For further questions refer to
Urban Dominik Müller
Schulhausstrasse 83
CH-6312 Steinhausen
SCHWEIZ
umueller@amiga.physik.unizh.ch
-------
AUTHORS
-------
U. Dominik Mueller XPK concept, xpkmaster.library, NUKE, RLEN, NONE, ENCO
Bryan Ford XPK concept, xpkmaster.library, BLZW
Peter Struijk Imploder, IMPL
Nico Francois PowerPacker
Kristian Nielsen XFH
Martin A. Blatter xDrop
Christian Schneider XPK concept, xLoadSeg
Christian Weber iff.library adaptation, ShowIFF, MoviePro
Markus Wild GCC interface & examples
Hartmut Goebel Oberon interface & examples