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- Path: sparky!uunet!utcsri!dgp.toronto.edu!rodney
- Newsgroups: comp.sys.sgi.graphics
- From: rodney@dgp.toronto.edu (Rodney Hoinkes)
- Subject: New JPEG GL Library Available
- Message-ID: <1993Jan6.151801.9871@jarvis.csri.toronto.edu>
- Organization: Centre for Landscape Research, University of Toronto
- Date: 6 Jan 93 20:18:01 GMT
- Lines: 50
-
-
- Anonymous FTP availability of CLR JPEG library v1.02
- ----------------------------------------------------
-
- As the Independent JPEG Group has released their v4 library, I have
- updated the SGI IRIS GL(tm) libraries I have built around it. These
- include simple calls to load/save to/from screen and/or memory (in
- lrect format). This also includes GL sample programs to save a
- section of the screen to a jpeg file (jsave) and one to display images
- on the screen (jpaste). These versions of the programs supercede v1.0
- of this library (based upon v3b of the library) and versions released
- by Eric Williams of SGI (thanks to him for bug fixes and enhancements)
- (based upon v2 of the library).
-
- The library can be found on explorer.dgp.utoronto.ca (128.100.1.129)
- in the directory pub/sgijpeg. The latest version is libCLRjpeg4.tar.Z.
- The binaries are all compiled under IRIX 3.3.2 and appear to be upwardly
- compatible.
-
- Please read the associated README files for caveats of using JPEG,
- especially for archiving as this is a lossy format (although a GREAT
- disk space saver). I have typically achieved compression of 10:1 to
- 15:1 over standard IRIS RGB files (RLE encoded) or TIFF (LZW compression)
- when dealing with photographic imagery.
-
- This library does NOT include all of the base JPEG code, only the
- pre-compiled .o files with a set of GL wrappers around it. The full
- JPEG code (without GL wrappings) can be found as follows:
-
- The Independent JPEG Group is proud to announce the fourth public release
- of our free JPEG image compression software.
-
- The C source code, documentation, and test files are available for anonymous
- FTP from FTP.UU.NET (137.39.1.9), file graphics/jpeg/jpegsrc.v4.tar.Z.
- The package will shortly be available on CompuServe, in the GRAPHSUPPORT
- forum (GO PICS), library 15, as jpsrc4.zip. We intend to post the source
- code in comp.sources.misc and executables in appropriate binaries groups.
-
- I hope others find it useful,
-
-
- Rodney Hoinkes
- Head of Design Applications
- Centre for Landscape Research
- University of Toronto
- Tel: (416) 978-7197
- Email: rodney@dgp.utoronto.ca
- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- APIAWWGATI
- "Anything's possible IF and WHEN we get around to it."
-