Mail Archives: djgpp/2006/06/25/16:48:15.1
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Message-Id: | <200606252045.k5PKjuqF009313@delorie.com>
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From: | Juan Manuel Guerrero <juan DOT guerrero AT gmx DOT de>
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To: | djgpp-announce AT delorie DOT com
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Subject: | ANNOUNCE: DJGPP port of libjpeg 6b (with lossless compression/decompression support added) uploaded.
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Date: | Sun, 25 Jun 2006 21:28:52 +0200
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This is a port of libjpeg 6b with lossless compression/decompression to MSDOS/DJGPP.
DJGPP specific changes.
=======================
This port of libjpeg 6b supplies, apart from all features known from
the jpeg6b port, lossless compression/decompression for JPEG.
The patch to implement this has been downloaded from:
<ftp://ftp.imagemagick.org/pub/ImageMagick/delegates/ljpeg-6b.tar.gz>
and applied to the standard jpeg-6b sources available at:
<ftp://ftp.imagemagick.org/pub/ImageMagick/delegates/libjpeg-6b.tar.bz2>
That are the same sorces that have been used to create the new version
of the port jpeg6b[bs].zip.
Apart from providing lossless compression/decompression, the goal of
this port is to use the standard configure scripts distributed with the
package to configure and compile the sources and not relay anymore on
the special makefile and config.h files for djgpp (usualy not well
maintained) distributed with the package.
There are only minor changes to the sources. This concerns certain
missing function declarations in a header file. Apart from this, only
the usual configuration files have been added, especialy sed scripts to
fix the libtool files (ltmain and ltconfig). They are located in the
/djgpp subdir. The diffs documemts the changes required to the header
and Makefile.in to get a working Makefile and the file: ljpeg6b.patch
is the applied patch.
To configure and compile the package and later to use it, you will have
to install the zlib and the png port available at ftp.delorie.com and
mirrors as:
ftp://ftp.delorie.com/pub/djgpp/current/v2tk/zlib123b.zip
ftp://ftp.delorie.com/pub/djgpp/current/v2tk/png1210b.zip
or:
ftp://ftp.delorie.com/pub/djgpp/beta/v2tk/zlib123b.zip
ftp://ftp.delorie.com/pub/djgpp/beta/v2tk/png1210b.zip
Of course, you can download a newer version of zlib and/or png if available.
The zlib and png stored in /current have been compiled with djdev203 and are
intented for use with Win98SE. Those ones from /beta are compiled with
djdeb204 beta for the use with WinXP-SP2.
Please note that there is a second port of ljpeg6b called jpeg6b. That one
has identical functionality like this one except that it lacks lossless
compression/decompression for JPEG. You can ***NOT*** have installed
both ports, jpeg6b and ljpeg6b, at the same time. This is because all
headers and libs have the same name, so they will overwrite each other.
I have no intention to resolve this name conflict.
Please **read** the docs.
The port consists of two packages that have been compiled using djdev203 and
that can be downloaded from ftp.delorie.com and mirrors as (timestamp 2006-06-25):
libjpeg 6b scripts, headers, libs and man format documentation:
ftp://ftp.delorie.com/pub/djgpp/current/v2tk/ljpeg6bb.zip
libjpeg 6b source:
ftp://ftp.delorie.com/pub/djgpp/current/v2tk/ljpeg6bs.zip
For the convenience of the WinXP users the binaries has been produced
a second time using the djdev204 beta library. This package is available
at ftp.delorie.com and mirrors as (timestamp 2006-06-25):
libjpeg 6b scripts, headers, libs and man format documentation:
ftp://ftp.delorie.com/pub/djgpp/beta/v2tk/ljpeg6bb.zip
When downloading these ports, please pay attention to the timestamp to
avoid downloading of old versions of these ports.
Send libjpeg specific bug reports to <jpeg-info AT uunet DOT uu DOT net>.
Send suggestions and bug reports concerning the DJGPP port to
comp.os.msdos.djgpp or <djgpp AT delorie DOT com>.
Enjoy.
Guerrero, Juan Manuel <juan DOT guerrero AT gmx DOT de>
, Juan Manuel <juan DOT guerrero AT gmx DOT de>
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