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-
- FastGIF II V1.08
- (c) 1992,93 by Christophe PASSUELLO
- -------------------------------------
-
-
- FastGIF II is The GIF viewer. This new version has been rewritten, now
- there is a real user interface, a file-requester, gadgets, and also
- short-cut, now you can display picture in a screen as before and in a
- WorkBench window, Multiple select is now implemented. FastGIF II takes
- advantage of the new AGA chipset. It's always the FASTEST GIF viewer on
- Amiga.
-
-
- FastGIF II is now SHAREWARE, so if you use it often send me a contribution
- of 10 US$ or 50 French Francs (bills only), you will receive the registered
- version of FastGIF II with IFF saving. If you live out Europa add 4 US$
- or 20 French Francs for mailing.
-
-
- FastGIF can't be sold alone or in any package, but you can freely
- distribuate it on PD's disks (like Fred Fish one) or on any BBS only if
- complete and unmodified. Distribution of registered version is FORBIDEN.
-
-
-
- DISCLAIMER
- ----------
-
- The author isn't responsable of any damages resulting of FastGIF II use.
-
- Before starting FastGIF II, you must be sure to have the Reqtools.library
- and the iff.library (for registered version) in your LIBS: directory.
-
-
- PRESENTATION
- ------------
-
- FastGIF II displays pictures with more than 32 colors using gray-scale,
- and using color if the picture don't have move than 32 colors. If you own
- a new Amiga with AGA chipset (A1200 & A4000), display will use colors even
- with a 256 colors picture. It allows now multiple selection for slide-show.
-
- There is still some little problems with AGA chipset, when you use hires
- switch during display the image may looks strange, these little problems
- will be fixed as soon as i will receive docs about the new libraries of
- WorkBench 3.0.
-
-
-
- FEATURES
- --------
-
- - Now with a user interface, file-requester, iconify and so on.
-
- - Very fast, mains routines are written using very highly optimised assembler
- (twice faster than TurboGIF).
-
- - It should be even faster with 32 bits cards because the assembly routines
- are small enough to fit in the cache. (I suggest you to set on the cache
- instruction using CPU or SetCPU).
-
- - It displays GIF89a files.
-
- - It works on NTSC or PAL.
-
- - You can scroll picture.
-
- - It handles corrupted GIF files.
-
- - Completly multitasking.
-
- - Multiple select for slide-show.
-
-
-
- RUNNING FASTGIF II WITH CLI
- ---------------------------
-
- Usage: FastGIF [-low] [-aga] -[agif] [-noreq] [-icon]
-
- -low This can you help when you are low on memory, with this option
- you can display a 640*512 picture with 512 KB CHIP and 512 KB
- FAST. (May slow down decompression).
-
- -aga Set this flag if you have a new Amiga with AGA chipset.
-
- -agif Set this flag if the GIF pictures came from Amiga. It is used
- to do a better guess of picture ratio. If the flag is not set
- then FastGIF will use 1.3 as ratio aspect.
-
- -noreq If you don't want requesters.
-
- -icon Minimal use of memory when iconified.
-
-
- You can set these options in FastGIF II using the Options Requester.
-
-
-
- RUNNING FASTGIF II WITH WORKBENCH
- ---------------------------------
-
- Just double-click on the FastGIF II 's icon. You can set the following Tools
- Types before running (With Info item of WorkBench menu).
-
- LOWMEM=ON This can you help when you are low on memory, with this
- option you can display a 640*512 picture with 512 KB CHIP
- and 512 KB FAST. (May slow down decompression).
-
- CHIPAGA=ON Set this flag if you have a new Amiga with AGA chipset.
-
- AMIGAGIF=ON Set this flag if the GIF pictures come from Amiga. It is
- used to do a better guess of picture ratio.
-
- ICONNFREE=ON Minimal use of memory when iconified.
-
- NOREQUESTER=ON If you don't want requesters.
-
- See Options Requester for more information.
- These options can be set in FastGIF II using the Options Requester.
-
-
-
- HOW TO USE FASTGIF II
- ---------------------
-
- Once loaded, you can see 6 buttons and two text areas, the small one gives
- information about the current file, the big one tells what FastGIF II is
- doing. Underlined letter are short-cut.
-
-
- I BUTTON LOAD
- -------------
-
- Opens a file-requester, if you choose a file it will be loaded in ram and
- decompressed, picture size and so on will be printed on Information area.
- You can now select more than one file, just press SHIFT key when clicking
- on a filename. (You can also use the "All" or "Match" gadget).
-
- If you wait until the file requester has scanned all the directory, the
- next time you won't have to wait: the directory will be in the buffer.
-
-
- II BUTTON VIEW
- --------------
-
- If the option No Requester isn't set, it opens a window with viewing options:
-
- - You can choose between a screen and a WorkBench window for displaying
- pictures. If you choose the WB window, the WorkBench must have enough
- colors else the picture will be converted in gray-scale if the WorkBench
- has at least 16 colors. With this mode 256 colors graphics cards that
- emulate WorkBench may works (Tell me if it works)
-
- - For screen display you can choose hires, interlace and overscan. Usually
- you don't need to use this flags, since FastGIF set them regarding the
- picture size.
-
- - For gray-scale converted picture you can choose brightness and contrat.
- Contrast can greetly improve the quality of picture (a value of 15 is
- usually enough).
-
-
- * Once the screen is displayed you can use the following keys:
-
- L : switch Interlace
- H : switch Hires
- O : switch Overscan
- ESC : close the screen
-
- To scroll picture use cursor keys, with SHIFT scrolling will use 16 pixels
- step, with ALT you to go to border of the screen. Click on right mouse
- button to close the screen.
-
-
- * Using WB window:
-
- You can change window size, use scroller to scroll picture in window,
- using the CloseWindow gadget or ESC key you will close window.
-
-
- NOTE: If more than one file has been selected, FastGIF goes directly to
- next file (Slide-show).
-
-
- III BUTTON SAVE
- ---------------
-
- WARNING! IFF saving is only available with registered version.
-
- A requester let you choose options:
-
- - You can choose to save the picture with all its colors (Without
- conversion) or to convert picture to gray-scale (contrast and bright-
- ness are those used in VIEW part.)
-
- - Compression tells if you want to compress pictures, no compression is
- useful if you power-pack pictures.
-
- A filerequester let you choose the filename. If more than one file has been
- selected and the No Requester option's it set then all files will be saved
- into the save directory of the first file. (".IFF" will be added at the end
- of the filename (".GIF" will be replaced by ".IFF")).
-
- NOTE: the picture is saved with a 24 bits palette.
-
-
- IV BUTTON ABOUT
- ---------------
-
- Tells some info about FastGIF II.
-
-
- V BUTTON OPTIONS
- ----------------
-
- This will allow you set FastGIF II options:
-
- - 256 Colors must be set to use 256 colors modes (You must have AGA chipset
- or may be a 256 colors graphic card).
-
- - Low memory may help you if you are low in memory.
-
- - Will free memory used by current file when iconified, so once iconifed
- FastGIF II will only use 40 KBytes of memory.
-
- - Set Amiga pictures flags if your GIF files come from Amiga. It is
- used to do a better guess of picture ratio.
-
- - If No Requester is set, the View options are set by FastGIF and the
- picture is displayed directly.
-
-
- IV ICONIFY
- ----------
-
- Just iconify FastGIF II.
-
-
-
- TO DO
- -----
-
- - Using colors instead of grey-scale for pictures with more than 32 colors. ?
-
- - Double buffering ?
-
-
- AUTHOR
- ------
-
- Send me any suggestion, bugs-report, flames, donations, etc....
- I'am looking for docs about the graphics.library to use 24 bits palette,
- to look for avaible display mode (sources, examples, includes and LVOs),i 'm
- also looking for the last version of Reqtools (>= V38) for improve this
- viewer.
- I'm looking also for docs about PCX, PIC and BMP or other format to write a
- multi-format viewer.
-
- For bugs-report send informations about your config:
- FastGIF version, witch processor, version of Workbench, how many RAM you
- own (CHIP & FAST), ...
-
-
- You can contact me at the following address:
-
- Christophe PASSUELLO
- 25, Rue du Plateau
- 91600 SAVIGNY SUR ORGE
- FRANCE
-
-
-
- CREDITS
- -------
-
- * FastGIF II uses the great ReqTools.library, copyright (c) by Nico Franτois.
- * Iconify routine based on Iconify by Leo L. Schwab (available on Fred Fish
- Disk 126).
- * GIF Format is Copyright (c) CompuServe Incorporated.
- * iff.library is Copyright (c) Christian A. WEBER.
- * Thanks to Thierry Andeol and Arto Ikola for beta-testing and suggestions.
-
-
- HISTORY
- -------
-
- - RELEASE V1.00
-
- First release
-
-
- - RELEASE V1.02
-
- Decompression 5% faster.
- Bug fixed : ScrollVPort doesn't works very well with Interlaced. I use
- MakeScreen and ReThinkDisplay instead.
-
-
- - RELEASE V1.10
-
- Now can display pictures with more than 32 colors in gray-scale.
- Pictures are now centered in the middle of the screen.
-
-
- - RELEASE V1.11
-
- Internal release.
- Fast scrolling added.
-
-
- - RELEASE V1.12
-
- New algorithm for decompression: 25 % FASTER.
-
-
- - RELEASE V1.13
-
- Bug fixed: palette colors wasn't good.
-
-
- - RELEASE V1.14 (Sep 15 1992)
-
- -low option added.
-
-
- - VERSION V1.20 (Oct 1 1992)
-
- GIF parsing completly rewritten, much safer than before.
- Now support GIF89a files.
- Options for contrast and brightness added.
- GIFInfo added to the archive.
-
-
- - VERSION FASTGIF II V1.00 (Jan 31 1993)
-
- Completly rewritten version.
- Now FastGIF II is SHAREWARE.
- Intuition User Interface added (Gadgets, requester, iconification).
- There is now a filerequester.
- Viewing routine rewritten.
- You can now view pictures in a Workbench window.
- You can run FastGIF II from WorkBench
- LZW decompressing 68020+ version added.
- Now supports the new AGA chips.
- IFF saving added (with registered version).
-
-
- - VERSION FASTGIF II V1.01 (Feb 04 1993)
-
- Now cut corrupted part of the picture.
- Small bug in the text area fixed.
-
-
- - VERSION FASTGIF II V1.02 (Feb 23 1993)
-
- No more pointer when displaying pictures.
- A larger FileRequester.
-
-
- - VERSION FASTGIF II V1.03 (Feb 28 1993)
-
- Removing pointer in V1.02 has brought a bug: now fixed.
-
-
- - VERSION FASTGIF II V1.04 (Mar 11 1993)
-
- A bug fixed for 8 colors pictures.
- Now, once the GIF file is loaded, the view flags hires, interlace and
- overscan are set regarding picture size.
-
-
- - VERSION FASTGIF II V1.05 (Mar 23 1993)
-
- Multiple select added.
- Option "No Requester" added.
-
-
- - VERSION FASTGIF II V1.06 (Mar 28 1993)
-
- Tool Types NOREQUESTER and ICONNFREE added.
- Best hires, lace, overscan flags guess.
- A small bug fixed when un-iconify.
-
-
- - VERSION FASTGIF II V1.07 (Apr 21 1993)
-
- Amiga GIF flag added.
- Now check if GIF file before load it in memory.
- Added flags for command line.
-
-
- - VERSION FASTGIF II V1.08 (Jun 17 1993)
-
- Best AGA support (Use 64 bits aligned width bitmap, 24 bits palette).
- Now support any fontsize.
- Small bugs fixed.
-
-
- -------------
-
-
- Enjoy FastGIF !!!!!!!!!!!
-