a class to read .3ds file (not complete, just a tool) a used it to create intermediate files (easier to read than .3ds) project for Visual C++ 5 ##################################################### # Scorpion by Niels ( code ) and MalcolmZ ( music ) # ##################################################### # Text by Niels # Party version !! # #################################### ( En francais plus bas a la ligne 44 ) # What is it ? # -> This is Niels Wild compo for the ARF! Party ( 1999/France ). I asked MalcolmZ to give me a song for it, thanks cool guy ! Because the sun was rising and we couldn't see easily what was beeing displayed on the big screen, the Wild contest was canceled and my compo was the only one wild to be show. But I'm very happy to release something ! # What do I need ? # -> You need a PC with Linux ( rulezzzz ! ) ou Windows9x ou NT. You need a 3dfx2 card. Sorry, I began to write it for 3dfx1 ( 2Mo for textures... ), but I had a problem when a friend give me his 3dfx1 for debugging ( suxxx when tried to load textures at each frame ) late after the beginning of the project. If you have a 3dfx1, I think I could run, but it may be very slow ( and the music could slow too ! ). You need a good CPU. I have a K6/200 and it runs with lots of frame/s. Sorry, I m not a good coder :) I m not coding graphics for years. The party release uses 14Mo, but it loads some useless graphics. The more you have, the best it is. # And now ? # -> I don t now if I will continue too try to write demos. This first demo took me lots of time. I want to write usefull Linux programs and I think I would have to write both :-( If you have a program using graphics with any lib on Linux , please write me to describe your experience. My demo uses Glide. I choosed it because it exists on Linux and Windows, and I didn't know if OpenGL works good on Linux. ->Where can I join you ? superfab@citeweb.net ->And MalcolmZ malcolmz@wanadoo.fr ############################################################################### # Courte presentation # Voici la Scorpion par Niels ( pov' code ) et MalcolmZ ( super musique ). Sortie a l occasion de la ARF! Party, une party qui m a donne l occasion une fois de plus de repartir demoli :-) Vu que le soleil se levait pour la deuxieme fois sur la ARF! Party et qu il risquait d empecher les compos passees apres la mienne d etre visibles, le coucours de Wild a ete annule. Tant pis, mais quelle plaisir d enfin sortir quelque chose !!! # Matos requis: # - Linux ( c est mieux ) ou Windows ( pas bien si vous utilisez 95/98, un tout petit peu mieux si c est NT ). - Une 3dfx2. Aie. J ai commence a l ecrire pour 3dfx1 ( 2Mo de textures max ) , vu le monde qui en possede. Malheureusement, a un stade avance du projet ( disons: juste avant la Volcanic5 ), un pote m a prete sa 3dfx1 pour debugger, et la, malheur: le chargement bourrin de textures rame fort, alors que ca tourne tres vite ( tres souvent 60 images/s ) sur ma 3dfx2. Bref, ca tourne surement sur 3dfx1, mais je garantis par que ca soit regardable, ou meme ecoutable ( ca faisait ramer Midas ! ). - Un processeur pas trop mou. J ai un K6/200, ca tourne tres bien. Desole pour ceux qui en ont un plus lent, surtout ceux qui ont des Cyrix, c est garantit pas optimise. - De la RAM. Le programme utilise 14Mo dans la version party. Il faudra un peu moins dans la version expurge. # Quelques mots sur l ecriture de ce truc: # -> J ai commence sous Win98. Les crash etaient frequents. C etait sympa, le numero de version ( en bas a droite de l ecran, visible dans la version beta ) m indiquait quand le systeme etaient sur le point de planter :-) Hop, un petit reboot pour nettoyer tout ca ! Puis j ai achete un ecran 17 pouces. Qu est-ce que ca peut changer ? Et bien: un ecran sur la carte graphique, un sur la 3dfx. Moi, j ai trouve tres pratiques de pouvoir voir le code en meme temps que le programme s execute. Avec DirectDraw, c est pas evident. Autre avantage du coup des deux moniteurs: je peux etre sous X-Window et jouer la demo en meme temps ! Quelques mois plus tard, je trouve sur le net le SDK et les drivers Glide. Pas mal de modifications et d heures aussi ! ) et ca tournait sous Linux ! Problemes: j etais trop habitue a Visual C++ 5, dont il faut avouer les grandes qualites, face a qui Emacs fait un peu ridicule ( VisualC++ est hyper-pratique je trouve ). Et puis j avais ecrit un programme pour mettre mes donnees dans un seul package. Ecrire un programme qui gere le Drag'n Drop et de jolies ListView sous Linux, c est pas gagne, surtout quand on connait pas mal Windows. Maintenant, je pourrais peut-etre le faire, mais ca aurait pris beaucoup de temps :-( Bref, j ai continue sous 98. Puis j ai eu NT4. Et la ca c est passe nettement mieux: j ai du avoir au maximum 5 plantages ( les fameux ecrans bleus ). C est pas mal de ne presque jamais avoir a rebooter pour cause de plantage. Mais bon, c est largement faisable sous Linux qui est tres stable. J ai quand meme continue a utiliser Win98: Gimp ne fonctionne pas sous NT. Oui, Gimp ! Sous Linux, je ne connais pas de moyen efficace d utiliser ma foule de fontes TrueType. J ai donc du me rabattre sur la version Windows :-( Sinon, ma prod a les caracteristiques suivantes: - routines 3d garanties anti-optimisees - images chargees avec la lib du JPEG Independant Group - module lu avec midas - video avec plus de 550 JPEG - chargement de textures bourrin a chaque frame - objets 3d generes avec mes petites mains ou sortis de Quake2. -> Et maintenant ? Je ne sais pas si je vais continuer a essayer d ecrire des demos ( "arrete le massacre" :)), celle-la m a pris un temps fou. J aimerai beaucoup ecrire des programmes vraiment utiles sous Linux, mais je pense pas que j aurais le temps de faire les deux. Surtout que des fois les etudes ou le boulot pointent leur nez ! Si tu a deja un programme graphiques qui utilise une lib, ecris-moi donc pour me faire partager ton experience. Pour la Scorpion, j ai utilise Glide. A l epoque ( il y a quand meme quelques mois maintenant ), je ne savais pas si OpenGL vallait le coup sous Linux, il n y avait que les 3dfx qui sortaient du lot. En fait, je suis un gros menteur, j ai commence a faire tourner la demo qu apres quelques mois, quand j ai trouve des drivers pour Linux sur le net. -> Quelques coucous ! . Scorpion/Silicon: c est grace a lui que j ai decouvert les demos. En fait, parce que j ai eu la chance d etre dans le meme IUT que lui :-) Cette prod lui est dediee, a lui ainsi qu a la Scorpion-Mania ( son charisme naturel qui fait dire a tout le monde "C est toi Scorpion ? Je me mets a genoux devant toi" ). . MalcolmZ: je te remercierais jamais assez :-) J adore tes zic ! . ONC/AdrenalinePC: un mec sympa avec qui j ai pu discuter lorsque deux BBS ( ProEtud2 et Lolo BBS ) pas loin de chez moi existaient encore. a+ ! . Gaston: je le connais au moins depuis 15 ans ( vu qu on en a 20, ca fait quand meme un bout de temps ! ). . Titi, Arkos, Flo, Loic, Doc, Patrick, Jerome, Patrick, Thierry, Jean-Claude, etc... ceux-la, pas besoin de leur dire grand chose vu que je les vois assez souvent ! . Tous les groupes qui tuent et qui me degoutent a chaque fois que je vois une de leurs prods ( je dois en oublier; dans le desordre ): TBL ( combien de fois j ai regarde la Stash ? Un nombre incroyable ! ), Bomb, Cocoon, Popsy, Digital Murders , Silicon, Complex ( les demos en Java qui tuent, c est eux ! ). . Tous les groupes qui essayent de faire des demos, et qui comme moi galerent parce que c est difficile de ressembler a des mecs qui codent depuis pas mal d annees. ->Joindez-moi ! superfab@citeweb.net http://superfab.citeweb.net ->Joindez le zycos ! malcolmz@wanadoo.fr SCORP_FL: Scorpion final version screendump: some screenshotsthe directory where the executable files should be createdIn this directory, Makefile to build the project and .o files. libmidas.a is was built using the Midas library.Little and very buggy file packager. Project for Visual C++ 5, Windows only. It put files in a single file, and create a .h file ( must be put in the project to read the archive )lot's of useless files :-)In file included from jcapimin.c:20: jinclude.h:89: parse error before `size_t' In file included from jcapimin.c:21: jpeglib.h:66: parse error before `*' jpeglib.h:66: warning: data definition has no type or storage class jpeglib.h:67: parse error before `*' jpeglib.h:67: warning: data definition has no type or storage class jpeglib.h:68: parse error before `*' jpeglib.h:68: warning: data definition has no type or storage class jpeglib.h:479: parse error before `JSAMPARRAY' jpeglib.h:479: warning: no semicolon at end of struct or union jpeglib.h:589: parse error before `*' jpeglib.h:589: warning: data definition has no type or storage class jpeglib.h:630: parse error before `}' jpeglib.h:762: parse error before `JSAMPARRAY' jpeglib.h:762: warning: no semicolon at end of struct or union jpeglib.h:781: parse error before `*' jpeglib.h:781: `JSAMPARRAY' declared as function returning a function jpeglib.h:781: `JSAMPARRAY' redeclared as different kind of symbol jpeglib.h:67: previous declaration of `JSAMPARRAY' jpeglib.h:781: warning: data definition has no type or storage class jpeglib.h:803: parse error before `}' In file included from jpeglib.h:1093, from jcapimin.c:21: jerror.h:206: parse error before `->' jerror.h:206: stray '\' in program jerror.h:209: stray '\' in program jerror.h:210: stray '\' in program jerror.h:213: stray '\' in program jerror.h:214: stray '\' in program jerror.h:215: stray '\' in program jerror.h:218: stray '\' in program jerror.h:219: stray '\' in program jerror.h:220: stray '\' in program jerror.h:221: stray '\' in program jerror.h:224: stray '\' in program jerror.h:225: stray '\' in program jerror.h:226: stray '\' in program jerror.h:227: stray '\' in program jerror.h:228: stray '\' in program jerror.h:231: stray '\' in program jerror.h:232: stray '\' in program jerror.h:239: stray '\' in program jerror.h:242: stray '\' in program jerror.h:243: stray '\' in program jerror.h:246: stray '\' in program jerror.h:247: stray '\' in program jerror.h:248: stray '\' in program jerror.h:253: stray '\' in program jerror.h:256: stray '\' in program jerror.h:257: stray '\' in program jerror.h:260: stray '\' in program jerror.h:261: stray '\' in program jerror.h:262: stray '\' in program jerror.h:265: stray '\' in program jerror.h:266: `p1' undeclared here (not in a function) jerror.h:266: warning: data definition has no type or storage class jerror.h:266: conflicting types for `_mp' jerror.h:266: previous declaration of `_mp' jerror.h:266: `p2' undeclared here (not in a function) jerror.h:266: warning: data definition has no type or storage class jerror.h:266: conflicting types for `_mp' jerror.h:266: previous declaration of `_mp' jerror.h:266: `p3' undeclared here (not in a function) jerror.h:266: warning: data definition has no type or storage class jerror.h:266: stray '\' in program jerror.h:267: parse error before `->' jerror.h:267: stray '\' in program jerror.h:268: parse error before `->' jerror.h:270: stray '\' in program jerror.h:271: conflicting types for `_mp' jerror.h:266: previous declaration of `_mp' jerror.h:271: `p1' undeclared here (not in a function) jerror.h:271: warning: data definition has no type or storage class jerror.h:271: conflicting types for `_mp' jerror.h:271: previous declaration of `_mp' jerror.h:271: `p2' undeclared here (not in a function) jerror.h:271: warning: data definition has no type or storage class jerror.h:271: conflicting types for `_mp' jerror.h:271: previous declaration of `_mp' jerror.h:271: `p3' undeclared here (not in a function) jerror.h:271: warning: data definition has no type or storage class jerror.h:271: conflicting types for `_mp' jerror.h:271: previous declaration of `_mp' jerror.h:271: `p4' undeclared here (not in a function) jerror.h:271: warning: data definition has no type or storage class jerror.h:271: stray '\' in program jerror.h:272: parse error before `->' jerror.h:272: stray '\' in program jerror.h:273: parse error before `->' jerror.h:275: stray '\' in program jerror.h:276: conflicting types for `_mp' jerror.h:271: previous declaration of `_mp' jerror.h:276: `p1' undeclared here (not in a function) jerror.h:276: warning: data definition has no type or storage class jerror.h:276: conflicting types for `_mp' jerror.h:276: previous declaration of `_mp' jerror.h:276: `p2' undeclared here (not in a function) jerror.h:276: warning: data definition has no type or storage class jerror.h:276: conflicting types for `_mp' jerror.h:276: previous declaration of `_mp' jerror.h:276: `p3' undeclared here (not in a function) jerror.h:276: warning: data definition has no type or storage class jerror.h:276: conflicting types for `_mp' jerror.h:276: previous declaration of `_mp' jerror.h:276: `p4' undeclared here (not in a function) jerror.h:276: warning: data definition has no type or storage class jerror.h:276: stray '\' in program jerror.h:277: conflicting types for `_mp' jerror.h:276: previous declaration of `_mp' jerror.h:277: `p5' undeclared here (not in a function) jerror.h:277: warning: data definition has no type or storage class jerror.h:277: stray '\' in program jerror.h:278: parse error before `->' jerror.h:278: stray '\' in program jerror.h:279: parse error before `->' jerror.h:281: stray '\' in program jerror.h:282: conflicting types for `_mp' jerror.h:277: previous declaration of `_mp' jerror.h:282: `p1' undeclared here (not in a function) jerror.h:282: warning: data definition has no type or storage class jerror.h:282: conflicting types for `_mp' jerror.h:282: previous declaration of `_mp' jerror.h:282: `p2' undeclared here (not in a function) jerror.h:282: warning: data definition has no type or storage class jerror.h:282: conflicting types for `_mp' jerror.h:282: previous declaration of `_mp' jerror.h:282: `p3' undeclared here (not in a function) jerror.h:282: warning: data definition has no type or storage class jerror.h:282: conflicting types for `_mp' jerror.h:282: previous declaration of `_mp' jerror.h:282: `p4' undeclared here (not in a function) jerror.h:282: warning: data definition has no type or storage class jerror.h:282: stray '\' in program jerror.h:283: conflicting types for `_mp' jerror.h:282: previous declaration of `_mp' jerror.h:283: `p5' undeclared here (not in a function) jerror.h:283: warning: data definition has no type or storage class jerror.h:283: conflicting types for `_mp' jerror.h:283: previous declaration of `_mp' jerror.h:283: `p6' undeclared here (not in a function) jerror.h:283: warning: data definition has no type or storage class jerror.h:283: conflicting types for `_mp' jerror.h:283: previous declaration of `_mp' jerror.h:283: `p7' undeclared here (not in a function) jerror.h:283: warning: data definition has no type or storage class jerror.h:283: conflicting types for `_mp' jerror.h:283: previous declaration of `_mp' jerror.h:283: `p8' undeclared here (not in a function) jerror.h:283: warning: data definition has no type or storage class jerror.h:283: stray '\' in program jerror.h:284: parse error before `->' jerror.h:284: stray '\' in program jerror.h:285: parse error before `->' jerror.h:287: stray '\' in program jerror.h:288: stray '\' in program jcapimin.c:37: stray '\' in program jcapimin.c:39: stray '\' in program jcapimin.c:50: `cinfo' undeclared here (not in a function) jcapimin.c:51: parse error before `(' jcapimin.c:51: warning: parameter names (without types) in function declaration jcapimin.c:51: `memset' declared as function returning a function jcapimin.c:51: conflicting types for `memset' /usr/include/string.h:56: previous declaration of `memset' jcapimin.c:51: parse error before `0' jcapimin.c:58: parse error before `(' jcapimin.c: In function `jpeg_finish_compress': jcapimin.c:155: stray '\' in program jcapimin.c:158: stray '\' in program jcapimin.c:171: called object is not a function jcapimin.c:172: stray '\' in program jcapimin.c: In function `jpeg_write_marker': jcapimin.c:201: stray '\' in program jcapimin.c: In function `jpeg_write_m_header': jcapimin.c:220: stray '\' in program jcapimin.c: In function `jpeg_write_tables': jcapimin.c:257: stray '\' in program make: *** [jcapimin.o] Error 1 The Independent JPEG Group's JPEG software ========================================== README for release 6b of 27-Mar-1998 ==================================== This distribution contains the sixth public release of the Independent JPEG Group's free JPEG software. You are welcome to redistribute this software and to use it for any purpose, subject to the conditions under LEGAL ISSUES, below. Serious users of this software (particularly those incorporating it into larger programs) should contact IJG at jpeg-info@uunet.uu.net to be added to our electronic mailing list. Mailing list members are notified of updates and have a chance to participate in technical discussions, etc. This software is the work of Tom Lane, Philip Gladstone, Jim Boucher, Lee Crocker, Julian Minguillon, Luis Ortiz, George Phillips, Davide Rossi, Guido Vollbeding, Ge' Weijers, and other members of the Independent JPEG Group. IJG is not affiliated with the official ISO JPEG standards committee. DOCUMENTATION ROADMAP ===================== This file contains the following sections: OVERVIEW General description of JPEG and the IJG software. LEGAL ISSUES Copyright, lack of warranty, terms of distribution. REFERENCES Where to learn more about JPEG. ARCHIVE LOCATIONS Where to find newer versions of this software. RELATED SOFTWARE Other stuff you should get. FILE FORMAT WARS Software *not* to get. TO DO Plans for future IJG releases. Other documentation files in the distribution are: User documentation: install.doc How to configure and install the IJG software. usage.doc Usage instructions for cjpeg, djpeg, jpegtran, rdjpgcom, and wrjpgcom. *.1 Unix-style man pages for programs (same info as usage.doc). wizard.doc Advanced usage instructions for JPEG wizards only. change.log Version-to-version change highlights. Programmer and internal documentation: libjpeg.doc How to use the JPEG library in your own programs. example.c Sample code for calling the JPEG library. structure.doc Overview of the JPEG library's internal structure. filelist.doc Road map of IJG files. coderules.doc Coding style rules --- please read if you contribute code. Please read at least the files install.doc and usage.doc. Useful information can also be found in the JPEG FAQ (Frequently Asked Questions) article. See ARCHIVE LOCATIONS below to find out where to obtain the FAQ article. If you want to understand how the JPEG code works, we suggest reading one or more of the REFERENCES, then looking at the documentation files (in roughly the order listed) before diving into the code. OVERVIEW ======== This package contains C software to implement JPEG image compression and decompression. JPEG (pronounced "jay-peg") is a standardized compression method for full-color and gray-scale images. JPEG is intended for compressing "real-world" scenes; line drawings, cartoons and other non-realistic images are not its strong suit. JPEG is lossy, meaning that the output image is not exactly identical to the input image. Hence you must not use JPEG if you have to have identical output bits. However, on typical photographic images, very good compression levels can be obtained with no visible change, and remarkably high compression levels are possible if you can tolerate a low-quality image. For more details, see the references, or just experiment with various compression settings. This software implements JPEG baseline, extended-sequential, and progressive compression processes. Provision is made for supporting all variants of these processes, although some uncommon parameter settings aren't implemented yet. For legal reasons, we are not distributing code for the arithmetic-coding variants of JPEG; see LEGAL ISSUES. We have made no provision for supporting the hierarchical or lossless processes defined in the standard. We provide a set of library routines for reading and writing JPEG image files, plus two sample applications "cjpeg" and "djpeg", which use the library to perform conversion between JPEG and some other popular image file formats. The library is intended to be reused in other applications. In order to support file conversion and viewing software, we have included considerable functionality beyond the bare JPEG coding/decoding capability; for example, the color quantization modules are not strictly part of JPEG decoding, but they are essential for output to colormapped file formats or colormapped displays. These extra functions can be compiled out of the library if not required for a particular application. We have also included "jpegtran", a utility for lossless transcoding between different JPEG processes, and "rdjpgcom" and "wrjpgcom", two simple applications for inserting and extracting textual comments in JFIF files. The emphasis in designing this software has been on achieving portability and flexibility, while also making it fast enough to be useful. In particular, the software is not intended to be read as a tutorial on JPEG. (See the REFERENCES section for introductory material.) Rather, it is intended to be reliable, portable, industrial-strength code. We do not claim to have achieved that goal in every aspect of the software, but we strive for it. We welcome the use of this software as a component of commercial products. No royalty is required, but we do ask for an acknowledgement in product documentation, as described under LEGAL ISSUES. LEGAL ISSUES ============ In plain English: 1. We don't promise that this software works. (But if you find any bugs, please let us know!) 2. You can use this software for whatever you want. You don't have to pay us. 3. You may not pretend that you wrote this software. If you use it in a program, you must acknowledge somewhere in your documentation that you've used the IJG code. In legalese: The authors make NO WARRANTY or representation, either express or implied, with respect to this software, its quality, accuracy, merchantability, or fitness for a particular purpose. This software is provided "AS IS", and you, its user, assume the entire risk as to its quality and accuracy. This software is copyright (C) 1991-1998, Thomas G. Lane. All Rights Reserved except as specified below. Permission is hereby granted to use, copy, modify, and distribute this software (or portions thereof) for any purpose, without fee, subject to these conditions: (1) If any part of the source code for this software is distributed, then this README file must be included, with this copyright and no-warranty notice unaltered; and any additions, deletions, or changes to the original files must be clearly indicated in accompanying documentation. (2) If only executable code is distributed, then the accompanying documentation must state that "this software is based in part on the work of the Independent JPEG Group". (3) Permission for use of this software is granted only if the user accepts full responsibility for any undesirable consequences; the authors accept NO LIABILITY for damages of any kind. These conditions apply to any software derived from or based on the IJG code, not just to the unmodified library. If you use our work, you ought to acknowledge us. Permission is NOT granted for the use of any IJG author's name or company name in advertising or publicity relating to this software or products derived from it. This software may be referred to only as "the Independent JPEG Group's software". We specifically permit and encourage the use of this software as the basis of commercial products, provided that all warranty or liability claims are assumed by the product vendor. ansi2knr.c is included in this distribution by permission of L. Peter Deutsch, sole proprietor of its copyright holder, Aladdin Enterprises of Menlo Park, CA. ansi2knr.c is NOT covered by the above copyright and conditions, but instead by the usual distribution terms of the Free Software Foundation; principally, that you must include source code if you redistribute it. (See the file ansi2knr.c for full details.) However, since ansi2knr.c is not needed as part of any program generated from the IJG code, this does not limit you more than the foregoing paragraphs do. The Unix configuration script "configure" was produced with GNU Autoconf. It is copyright by the Free Software Foundation but is freely distributable. The same holds for its supporting scripts (config.guess, config.sub, ltconfig, ltmain.sh). Another support script, install-sh, is copyright by M.I.T. but is also freely distributable. It appears that the arithmetic coding option of the JPEG spec is covered by patents owned by IBM, AT&T, and Mitsubishi. Hence arithmetic coding cannot legally be used without obtaining one or more licenses. For this reason, support for arithmetic coding has been removed from the free JPEG software. (Since arithmetic coding provides only a marginal gain over the unpatented Huffman mode, it is unlikely that very many implementations will support it.) So far as we are aware, there are no patent restrictions on the remaining code. The IJG distribution formerly included code to read and write GIF files. To avoid entanglement with the Unisys LZW patent, GIF reading support has been removed altogether, and the GIF writer has been simplified to produce "uncompressed GIFs". This technique does not use the LZW algorithm; the resulting GIF files are larger than usual, but are readable by all standard GIF decoders. We are required to state that "The Graphics Interchange Format(c) is the Copyright property of CompuServe Incorporated. GIF(sm) is a Service Mark property of CompuServe Incorporated." REFERENCES ========== We highly recommend reading one or more of these references before trying to understand the innards of the JPEG software. The best short technical introduction to the JPEG compression algorithm is Wallace, Gregory K. "The JPEG Still Picture Compression Standard", Communications of the ACM, April 1991 (vol. 34 no. 4), pp. 30-44. (Adjacent articles in that issue discuss MPEG motion picture compression, applications of JPEG, and related topics.) If you don't have the CACM issue handy, a PostScript file containing a revised version of Wallace's article is available at ftp://ftp.uu.net/graphics/jpeg/wallace.ps.gz. The file (actually a preprint for an article that appeared in IEEE Trans. Consumer Electronics) omits the sample images that appeared in CACM, but it includes corrections and some added material. Note: the Wallace article is copyright ACM and IEEE, and it may not be used for commercial purposes. A somewhat less technical, more leisurely introduction to JPEG can be found in "The Data Compression Book" by Mark Nelson and Jean-loup Gailly, published by M&T Books (New York), 2nd ed. 1996, ISBN 1-55851-434-1. This book provides good explanations and example C code for a multitude of compression methods including JPEG. It is an excellent source if you are comfortable reading C code but don't know much about data compression in general. The book's JPEG sample code is far from industrial-strength, but when you are ready to look at a full implementation, you've got one here... The best full description of JPEG is the textbook "JPEG Still Image Data Compression Standard" by William B. Pennebaker and Joan L. Mitchell, published by Van Nostrand Reinhold, 1993, ISBN 0-442-01272-1. Price US$59.95, 638 pp. The book includes the complete text of the ISO JPEG standards (DIS 10918-1 and draft DIS 10918-2). This is by far the most complete exposition of JPEG in existence, and we highly recommend it. The JPEG standard itself is not available electronically; you must order a paper copy through ISO or ITU. (Unless you feel a need to own a certified official copy, we recommend buying the Pennebaker and Mitchell book instead; it's much cheaper and includes a great deal of useful explanatory material.) In the USA, copies of the standard may be ordered from ANSI Sales at (212) 642-4900, or from Global Engineering Documents at (800) 854-7179. (ANSI doesn't take credit card orders, but Global does.) It's not cheap: as of 1992, ANSI was charging $95 for Part 1 and $47 for Part 2, plus 7% shipping/handling. The standard is divided into two parts, Part 1 being the actual specification, while Part 2 covers compliance testing methods. Part 1 is titled "Digital Compression and Coding of Continuous-tone Still Images, Part 1: Requirements and guidelines" and has document numbers ISO/IEC IS 10918-1, ITU-T T.81. Part 2 is titled "Digital Compression and Coding of Continuous-tone Still Images, Part 2: Compliance testing" and has document numbers ISO/IEC IS 10918-2, ITU-T T.83. Some extensions to the original JPEG standard are defined in JPEG Part 3, a newer ISO standard numbered ISO/IEC IS 10918-3 and ITU-T T.84. IJG currently does not support any Part 3 extensions. The JPEG standard does not specify all details of an interchangeable file format. For the omitted details we follow the "JFIF" conventions, revision 1.02. A copy of the JFIF spec is available from: Literature Department C-Cube Microsystems, Inc. 1778 McCarthy Blvd. Milpitas, CA 95035 phone (408) 944-6300, fax (408) 944-6314 A PostScript version of this document is available by FTP at ftp://ftp.uu.net/graphics/jpeg/jfif.ps.gz. There is also a plain text version at ftp://ftp.uu.net/graphics/jpeg/jfif.txt.gz, but it is missing the figures. The TIFF 6.0 file format specification can be obtained by FTP from ftp://ftp.sgi.com/graphics/tiff/TIFF6.ps.gz. The JPEG incorporation scheme found in the TIFF 6.0 spec of 3-June-92 has a number of serious problems. IJG does not recommend use of the TIFF 6.0 design (TIFF Compression tag 6). Instead, we recommend the JPEG design proposed by TIFF Technical Note #2 (Compression tag 7). Copies of this Note can be obtained from ftp.sgi.com or from ftp://ftp.uu.net/graphics/jpeg/. It is expected that the next revision of the TIFF spec will replace the 6.0 JPEG design with the Note's design. Although IJG's own code does not support TIFF/JPEG, the free libtiff library uses our library to implement TIFF/JPEG per the Note. libtiff is available from ftp://ftp.sgi.com/graphics/tiff/. ARCHIVE LOCATIONS ================= The "official" archive site for this software is ftp.uu.net (Internet address 192.48.96.9). The most recent released version can always be found there in directory graphics/jpeg. This particular version will be archived as ftp://ftp.uu.net/graphics/jpeg/jpegsrc.v6b.tar.gz. If you don't have direct Internet access, UUNET's archives are also available via UUCP; contact help@uunet.uu.net for information on retrieving files that way. Numerous Internet sites maintain copies of the UUNET files. However, only ftp.uu.net is guaranteed to have the latest official version. You can also obtain this software in DOS-compatible "zip" archive format from the SimTel archives (ftp://ftp.simtel.net/pub/simtelnet/msdos/graphics/), or on CompuServe in the Graphics Support forum (GO CIS:GRAPHSUP), library 12 "JPEG Tools". Again, these versions may sometimes lag behind the ftp.uu.net release. The JPEG FAQ (Frequently Asked Questions) article is a useful source of general information about JPEG. It is updated constantly and therefore is not included in this distribution. The FAQ is posted every two weeks to Usenet newsgroups comp.graphics.misc, news.answers, and other groups. It is available on the World Wide Web at http://www.faqs.org/faqs/jpeg-faq/ and other news.answers archive sites, including the official news.answers archive at rtfm.mit.edu: ftp://rtfm.mit.edu/pub/usenet/news.answers/jpeg-faq/. If you don't have Web or FTP access, send e-mail to mail-server@rtfm.mit.edu with body send usenet/news.answers/jpeg-faq/part1 send usenet/news.answers/jpeg-faq/part2 RELATED SOFTWARE ================ Numerous viewing and image manipulation programs now support JPEG. (Quite a few of them use this library to do so.) The JPEG FAQ described above lists some of the more popular free and shareware viewers, and tells where to obtain them on Internet. If you are on a Unix machine, we highly recommend Jef Poskanzer's free PBMPLUS software, which provides many useful operations on PPM-format image files. In particular, it can convert PPM images to and from a wide range of other formats, thus making cjpeg/djpeg considerably more useful. The latest version is distributed by the NetPBM group, and is available from numerous sites, notably ftp://wuarchive.wustl.edu/graphics/graphics/packages/NetPBM/. Unfortunately PBMPLUS/NETPBM is not nearly as portable as the IJG software is; you are likely to have difficulty making it work on any non-Unix machine. A different free JPEG implementation, written by the PVRG group at Stanford, is available from ftp://havefun.stanford.edu/pub/jpeg/. This program is designed for research and experimentation rather than production use; it is slower, harder to use, and less portable than the IJG code, but it is easier to read and modify. Also, the PVRG code supports lossless JPEG, which we do not. (On the other hand, it doesn't do progressive JPEG.) FILE FORMAT WARS ================ Some JPEG programs produce files that are not compatible with our library. The root of the problem is that the ISO JPEG committee failed to specify a concrete file format. Some vendors "filled in the blanks" on their own, creating proprietary formats that no one else could read. (For example, none of the early commercial JPEG implementations for the Macintosh were able to exchange compressed files.) The file format we have adopted is called JFIF (see REFERENCES). This format has been agreed to by a number of major commercial JPEG vendors, and it has become the de facto standard. JFIF is a minimal or "low end" representation. We recommend the use of TIFF/JPEG (TIFF revision 6.0 as modified by TIFF Technical Note #2) for "high end" applications that need to record a lot of additional data about an image. TIFF/JPEG is fairly new and not yet widely supported, unfortunately. The upcoming JPEG Part 3 standard defines a file format called SPIFF. SPIFF is interoperable with JFIF, in the sense that most JFIF decoders should be able to read the most common variant of SPIFF. SPIFF has some technical advantages over JFIF, but its major claim to fame is simply that it is an official standard rather than an informal one. At this point it is unclear whether SPIFF will supersede JFIF or whether JFIF will remain the de-facto standard. IJG intends to support SPIFF once the standard is frozen, but we have not decided whether it should become our default output format or not. (In any case, our decoder will remain capable of reading JFIF indefinitely.) Various proprietary file formats incorporating JPEG compression also exist. We have little or no sympathy for the existence of these formats. Indeed, one of the original reasons for developing this free software was to help force convergence on common, open format standards for JPEG files. Don't use a proprietary file format! TO DO ===== The major thrust for v7 will probably be improvement of visual quality. The current method for scaling the quantization tables is known not to be very good at low Q values. We also intend to investigate block boundary smoothing, "poor man's variable quantization", and other means of improving quality-vs-file-size performance without sacrificing compatibility. In future versions, we are considering supporting some of the upcoming JPEG Part 3 extensions --- principally, variable quantization and the SPIFF file format. As always, speeding things up is of great interest. Please send bug reports, offers of help, etc. to jpeg-info@uunet.uu.net. Sources. Some useless files and functions, sorry. Sources of the Independant JPEG Group library. Please read the Readme.txt in LNXJPEG directory.Hello This is Scorpion code source. Scorpion is a demo by Niels (code) and MalcolmZ (music). It was presented at ARF Party99. Optimization and code cleaning turned off :) This software is distributed under the terms of the GNU Library General Public License, see the LICENSE file for details. Some parts of this code source (JPEG lib, Midas) are not provided under the GNU General Public License, but with their own license. Read the license for these files (hum, it's free :-) Needed: - a PC :-) - Linux ( tested on Redhat 5.2 and Suse 6.0 ) or Windows 9x (tested on Windows98) or Windows NT (tested on WindowsNT 4.0 with severals Service Packs) - CPU > 200Mhz (tested with K6/200, fine!) with good FPU to run it - Voodoo2 or better (tested on Voodoo2 and Voodoo3). Glide required. - a compiler. Built with Visual C++ 5 under Windows Built with gcc and egcs (versions???) under Linux - Glide SDK (Glide2) - Midas sound library (by Sahara Surfers) - Emmmaaaccccsssssss !!! !-) - maybe something I forgot Have fun Niels is Fabien Shum-King superfab@citeweb.net http://superfab.citeweb.net MalcolmZ is JC Blenny malcolmz@wanadoo.fr http://perso.wanadoo.fr/malcolmz.trackerdezicks