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1995-02-12
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194 lines
Short: IJG JPEG V5a source
Author: Independent JPEG Group (jpeg-info@uunet.uu.net)
Uploader: Guenther@studbox.uni-stuttgart.de
Type: gfx/conv
This distribution contains the fifth public release of the Independent JPEG
Group's free JPEG software.
Version 5a 7-Dec-94
--------------------
Changed color conversion roundoff behavior so that grayscale values are
represented exactly. (This causes test image files to change.)
Make ordered dither use 16x16 instead of 4x4 pattern for a small quality
improvement.
New configure script based on latest GNU Autoconf.
Fix configure script to handle CFLAGS correctly.
Rename *.auto files to *.cfg, so that configure script still works if
file names have been truncated for DOS.
Fix bug in rdbmp.c: didn't allow for extra data between header and image.
Modify rdppm.c/wrppm.c to handle 2-byte raw PPM/PGM formats for 12-bit data.
Fix several bugs in rdrle.c.
NEED_SHORT_EXTERNAL_NAMES option was broken.
Revise jerror.h/jerror.c for more flexibility in message table.
Repair oversight in jmemname.c NO_MKTEMP case: file could be there
but unreadable.
Version 5 24-Sep-94
--------------------
Version 5 represents a nearly complete redesign and rewrite of the IJG
software. Major user-visible changes include:
* Automatic configuration simplifies installation for most Unix systems.
* A range of speed vs. image quality tradeoffs are supported.
This includes resizing of an image during decompression: scaling down
by a factor of 1/2, 1/4, or 1/8 is handled very efficiently.
* New programs rdjpgcom and wrjpgcom allow insertion and extraction
of text comments in a JPEG file.
The application programmer's interface to the library has changed completely.
Notable improvements include:
* We have eliminated the use of callback routines for handling the
uncompressed image data. The application now sees the library as a
set of routines that it calls to read or write image data on a
scanline-by-scanline basis.
* The application image data is represented in a conventional interleaved-
pixel format, rather than as a separate array for each color channel.
This can save a copying step in many programs.
* The handling of compressed data has been cleaned up: the application can
supply routines to source or sink the compressed data. It is possible to
suspend processing on source/sink buffer overrun, although this is not
supported in all operating modes.
* All static state has been eliminated from the library, so that multiple
instances of compression or decompression can be active concurrently.
* JPEG abbreviated datastream formats are supported, ie, quantization and
Huffman tables can be stored separately from the image data.
* And not only that, but the documentation of the library has improved
considerably!
Amiga port is done by Günther Röhrich (Guenther@studbox.uni-stuttgart.de)
============================= Archive contents =============================
Original Packed Ratio Date Time Name
-------- ------- ----- --------- -------- -------------
1391 684 50.8% 29-Oct-94 14:22:22 gcc/jconfig.h
9677 2423 74.9% 03-Jan-95 23:38:22 gcc/makefile.gcc
9746 2466 74.6% 03-Jan-95 22:16:08 gcc/makefile.gcc.020881
1935 886 54.2% 04-Jan-95 00:49:54 gcc/README
910 491 46.0% 18-Feb-91 10:17:38 jpeg-5a/ansi2knr.1
16486 6570 60.1% 20-Jan-94 02:59:52 jpeg-5a/ansi2knr.c
5240 1826 65.1% 07-Oct-94 16:55:04 jpeg-5a/cderror.h
4196 1494 64.3% 19-Jul-94 00:23:46 jpeg-5a/cdjpeg.h
2856 1435 49.7% 08-Dec-94 01:50:50 jpeg-5a/change.log
9765 4222 56.7% 30-Aug-94 15:52:14 jpeg-5a/cjpeg.1
27701 9356 66.2% 07-Oct-94 16:50:56 jpeg-5a/cjpeg.c
12166 3870 68.1% 02-Aug-94 20:26:56 jpeg-5a/ckconfig.c
5336 2596 51.3% 19-Jan-94 22:44:12 jpeg-5a/coderules.doc
43592 12122 72.1% 08-Dec-94 00:58:14 jpeg-5a/configure
7017 2870 59.0% 28-Aug-94 20:20:04 jpeg-5a/djpeg.1
22728 7529 66.8% 07-Oct-94 16:59:58 jpeg-5a/djpeg.c
16304 5986 63.2% 03-Jun-94 02:20:32 jpeg-5a/example.c
6912 2646 61.7% 23-Sep-94 23:54:06 jpeg-5a/filelist.doc
35213 14171 59.7% 07-Dec-94 17:41:42 jpeg-5a/install.doc
11970 3784 68.3% 16-Jul-94 20:44:54 jpeg-5a/jcapi.c
15242 4798 68.5% 27-Jul-94 21:26:50 jpeg-5a/jccoefct.c
14840 3893 73.7% 06-Nov-94 20:59:20 jpeg-5a/jccolor.c
12716 4047 68.1% 28-Jul-94 00:07:18 jpeg-5a/jcdctmgr.c
25367 7787 69.3% 21-Jul-94 17:17:26 jpeg-5a/jchuff.c
9298 2780 70.1% 04-Aug-94 18:13:14 jpeg-5a/jcmainct.c
15480 5012 67.6% 16-Jul-94 19:58:28 jpeg-5a/jcmarker.c
12945 3987 69.2% 28-Jul-94 00:13:42 jpeg-5a/jcmaster.c
2737 1212 55.7% 19-May-94 03:36:12 jpeg-5a/jcomapi.c
1338 606 54.7% 23-May-94 21:12:34 jpeg-5a/jconfig.bcc
1179 544 53.8% 06-Dec-94 17:43:14 jpeg-5a/jconfig.cfg
1143 526 53.9% 09-Jun-94 21:40:06 jpeg-5a/jconfig.dj
5372 2359 56.0% 23-May-94 20:51:14 jpeg-5a/jconfig.doc
1197 550 54.0% 23-May-94 21:12:40 jpeg-5a/jconfig.manx
1668 794 52.3% 23-May-94 21:12:42 jpeg-5a/jconfig.mc6
1170 540 53.8% 23-May-94 21:12:46 jpeg-5a/jconfig.sas
1174 538 54.1% 24-Sep-94 16:27:04 jpeg-5a/jconfig.st
979 428 56.2% 01-Sep-94 15:15:38 jpeg-5a/jconfig.vms
15515 4944 68.1% 25-Aug-94 15:26:48 jpeg-5a/jcparam.c
12772 3632 71.5% 04-Aug-94 18:27:32 jpeg-5a/jcprepct.c
18849 4902 73.9% 01-Aug-94 19:04:46 jpeg-5a/jcsample.c
13812 4475 67.6% 22-Jul-94 01:29:32 jpeg-5a/jdapi.c
5110 2048 59.9% 01-Apr-94 21:56:46 jpeg-5a/jdatadst.c
7594 3078 59.4% 10-Nov-94 18:31:44 jpeg-5a/jdatasrc.c
12194 3676 69.8% 16-Jul-94 19:27:14 jpeg-5a/jdcoefct.c
12157 3663 69.8% 08-Dec-94 01:07:16 jpeg-5a/jdcolor.c
7027 2655 62.2% 12-Jun-94 23:01:16 jpeg-5a/jdct.h
8756 3088 64.7% 05-Jul-94 15:48:04 jpeg-5a/jddctmgr.c
22235 8052 63.7% 28-Jul-94 00:10:20 jpeg-5a/jdhuff.c
20976 6375 69.6% 05-Jul-94 20:10:16 jpeg-5a/jdmainct.c
31081 9556 69.2% 27-Jul-94 22:16:56 jpeg-5a/jdmarker.c
23309 6873 70.5% 28-Jul-94 00:14:02 jpeg-5a/jdmaster.c
13732 3829 72.1% 08-Dec-94 01:09:00 jpeg-5a/jdmerge.c
9041 2459 72.8% 05-Jul-94 20:11:14 jpeg-5a/jdpostct.c
16371 4781 70.7% 01-Aug-94 19:08:42 jpeg-5a/jdsample.c
6792 2603 61.6% 07-Oct-94 16:41:52 jpeg-5a/jerror.c
12386 3588 71.0% 07-Oct-94 16:38:10 jpeg-5a/jerror.h
5480 1875 65.7% 13-Jun-94 02:55:12 jpeg-5a/jfdctflt.c
7572 2740 63.8% 19-Jun-94 22:00:20 jpeg-5a/jfdctfst.c
11065 3437 68.9% 21-Sep-94 23:46:58 jpeg-5a/jfdctint.c
8412 2974 64.6% 11-Jun-94 17:19:30 jpeg-5a/jidctflt.c
12927 4468 65.4% 19-Jun-94 21:53:30 jpeg-5a/jidctfst.c
14748 4553 69.1% 11-Jun-94 17:21:52 jpeg-5a/jidctint.c
13434 3419 74.5% 12-Jun-94 23:46:56 jpeg-5a/jidctred.c
3250 1473 54.6% 01-Apr-94 21:29:30 jpeg-5a/jinclude.h
4599 1765 61.6% 27-Jul-94 22:05:50 jpeg-5a/jmemansi.c
18788 5803 69.1% 01-Apr-94 22:00:42 jpeg-5a/jmemdos.c
8314 2131 74.3% 14-Mar-92 03:12:04 jpeg-5a/jmemdosa.asm
38963 10865 72.1% 25-Aug-94 16:16:08 jpeg-5a/jmemmgr.c
8136 3097 61.9% 13-Oct-94 17:58:08 jpeg-5a/jmemname.c
2764 1212 56.1% 27-Jul-94 22:02:34 jpeg-5a/jmemnobs.c
7820 2944 62.3% 29-Jan-94 23:54:44 jpeg-5a/jmemsys.h
11446 4454 61.0% 01-Aug-94 19:14:38 jpeg-5a/jmorecfg.h
14042 3814 72.8% 08-Jul-94 00:23:26 jpeg-5a/jpegint.h
38144 11469 69.9% 02-Dec-94 17:26:30 jpeg-5a/jpeglib.h
28246 9352 66.8% 08-Dec-94 01:32:04 jpeg-5a/jquant1.c
46199 15114 67.2% 20-Aug-94 19:19:08 jpeg-5a/jquant2.c
3664 1584 56.7% 05-Jun-94 00:50:40 jpeg-5a/jutils.c
357 236 33.8% 08-Dec-94 01:47:52 jpeg-5a/jversion.h
110718 39470 64.3% 11-Nov-94 00:54:10 jpeg-5a/libjpeg.doc
1572 697 55.6% 08-Dec-94 00:58:16 jpeg-5a/makcjpeg.st
1655 706 57.3% 08-Dec-94 00:58:16 jpeg-5a/makdjpeg.st
9509 2316 75.6% 08-Dec-94 00:58:16 jpeg-5a/makefile.ansi
11098 2783 74.9% 08-Dec-94 00:58:16 jpeg-5a/makefile.bcc
11562 2952 74.4% 08-Dec-94 00:58:14 jpeg-5a/makefile.cfg
9915 2449 75.3% 08-Dec-94 00:58:16 jpeg-5a/makefile.dj
9432 2284 75.7% 08-Dec-94 00:58:16 jpeg-5a/makefile.manx
10797 2679 75.1% 08-Dec-94 00:58:16 jpeg-5a/makefile.mc6
10479 2538 75.7% 08-Dec-94 00:58:18 jpeg-5a/makefile.mms
10086 2513 75.0% 08-Dec-94 00:58:16 jpeg-5a/makefile.sas
9874 2448 75.2% 08-Dec-94 00:58:16 jpeg-5a/makefile.unix
3160 1021 67.6% 08-Dec-94 00:58:18 jpeg-5a/makefile.vms
3668 731 80.0% 08-Dec-94 00:58:16 jpeg-5a/makljpeg.st
210 155 26.1% 08-Dec-94 00:58:18 jpeg-5a/makvms.opt
13707 4254 68.9% 10-Nov-94 18:05:28 jpeg-5a/rdbmp.c
6851 2584 62.2% 22-Sep-94 17:42:14 jpeg-5a/rdcolmap.c
22563 7200 68.0% 11-Nov-94 00:45:52 jpeg-5a/rdgif.c
1260 687 45.4% 09-Jul-94 00:34:18 jpeg-5a/rdjpgcom.1
13104 4710 64.0% 12-Aug-94 15:07:22 jpeg-5a/rdjpgcom.c
13719 3849 71.9% 11-Nov-94 00:19:04 jpeg-5a/rdppm.c
11580 3492 69.8% 30-Sep-94 14:45:00 jpeg-5a/rdrle.c
14902 4605 69.0% 22-Sep-94 17:48:54 jpeg-5a/rdtarga.c
17927 7714 56.9% 08-Dec-94 01:49:28 jpeg-5a/README
46963 17319 63.1% 08-Sep-94 14:42:48 jpeg-5a/structure.doc
21846 21846 0.0% 06-Nov-94 21:26:56 jpeg-5a/testimg.gif
5756 5756 0.0% 06-Nov-94 21:26:56 jpeg-5a/testimg.jpg
101484 77792 23.3% 06-Nov-94 21:26:54 jpeg-5a/testimg.ppm
5770 5770 0.0% 06-Nov-94 21:26:54 jpeg-5a/testorig.jpg
21177 8076 61.8% 30-Aug-94 16:45:36 jpeg-5a/usage.doc
13834 4037 70.8% 06-Sep-94 15:43:16 jpeg-5a/wrbmp.c
15434 5402 64.9% 04-Aug-94 16:44:20 jpeg-5a/wrgif.c
2611 1208 53.7% 30-Aug-94 16:41:00 jpeg-5a/wrjpgcom.1
16135 5544 65.6% 30-Aug-94 16:28:18 jpeg-5a/wrjpgcom.c
8324 2770 66.7% 11-Nov-94 00:17:44 jpeg-5a/wrppm.c
9155 3175 65.3% 12-Sep-94 20:33:14 jpeg-5a/wrrle.c
7517 2508 66.6% 28-Jul-94 00:17:08 jpeg-5a/wrtarga.c
-------- ------- ----- --------- --------
1558419 576924 62.9% 10-Jan-95 09:01:52 115 files