home *** CD-ROM | disk | FTP | other *** search
-
-
-
-
-
-
-
- GIF_view v. 4.4 - August 1992
-
-
-
- GIF image viewer
-
- and
-
- GIF to IFF converter
-
-
-
- Copyright (c) 1991,92 by Lorenzo Musto
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- General Overview
-
- GIF_view is a program which allows you to view all GIF images
- as well as to convert them into IFF format images.
-
- This is version 4.4, an update to version 4.
-
- My main goal in developing this program was to make it
- as fast as possible. The decompression phase was carefully
- designed to make it more efficient both in terms of speed
- and memory management and then coded in assembly.
-
- For images bigger than the screen size, scrolling and
- overscan are available to view them throughout.
- Also, when GIF image is showed using HAM view-mode, you
- can avoid the annoying left border color distortion which
- could rise as a beside effect, by executing the command line
- option 'PERFECT'.
-
- If you want to force an high resolution viewing or if you
- are low on memory or time , you may want to specify the
- 'QUICK' option, but this may produce a deterioration in color
- rendering (B&W).
-
- The program isn't only a fast GIF viewer, but also comes
- with an option to save the whole image, including its hidden
- parts, as an IFF-ILBM file.
-
- If no user action is cought within a time which the user can
- set (default 20 seconds) as he wishes,the program ends itself.
- This can be used to create scripts releasing a "slide-show"
- or for background conversions.
-
- A windmill signals the program's execution which may be
- aborted by CTRL-C.
-
- No particular hardware is required to run this program;
- it fits well on PAL systems as well as NTSC and works
- fine with any OS version.
-
- NOTE! As software support the program requires "arp.library".
-
- Have fun.
-
-
- Thanks to Mark Matel who has revised this text file to make
- the English easier to read.
-
- This work is dedicated to my father.
-
-
-
- Author
-
- Contact me for any questions about this work:
-
- paper: Lorenzo Musto
- via A. Cantele 11,
- 35129 Padova (Italy)
-
- e-mail: lorenzo@sabrina.dei.unipd.it ( INTERNET )
-
- phone: +39 49 609356
-
-
-
- Distribution
-
- GIF_view is a shareware program.
-
- GIF_view is also a copyrighted piece of software.
-
- You may copy or upload the archive wherever you choose, but
- only when it is complete and unchanged. You are not allowed
- to sell GIF_view for profit, or include GIF_view on a disk
- which is sold for profit, without the author's (Lorenzo Musto)
- permission.
-
- If you use it often, please send me a donation of 10 US$ or
- equivalent in any cash. Then you will get an update service
- without the troublesome requester.
-
-
-
- Usage - Template
-
- GIF_view [filename] [PERFECT] [QUICK] [TIME <n>]
- [SAVE <filename>] [ABOUT]
-
-
- PERFECT to correct left border color distorsion.
-
- QUICK to gain 'speed, resolution, memory' but
- to the detriment of image's color features.
-
- TIME to set time-out mechanism to <n> seconds;
- default value is twenty.
-
- SAVE to save into file <filename>, which results
- in an image following the IFF-ILBM standard.
- Set 'TIME 0' to hide conversion.
-
- ABOUT shows complete information about this executable
- file and its author.
-
- --------
-
- KeyStrokes
-
- - carriage return
- ends displaying phase.
-
- - arrow keys
- scrolling.
-
- - numeric keypad
- [7 8 9] allows user to scroll around an image which
- [4 6] is larger than the screen size. These keys
- [1 2 3] will remain inactive when image fits screen.
-
- [5] puts screen to back.
-
- [0] refreshes whole display area.
-
- - CTRL-C
- aborts execution freeing all allocated resources.
-
-
-
- Trademarks
-
- GIF and 'Graphics Interchange Format' are trademarks of
- CompuServe, Incorporated.
- an H&R Block Company
- 5000 Arlington Centre Blvd.
- Columbus, Ohio 43220
- (614) 457-8600
-
-
- "ILBM" IFF Interleaved Bitmap, from Electronic Arts.
- Electronic Arts[tm] is a trademark of Electronic Arts.
-
-
-
- History
-
- o may-91 v 0 prototype.
- o aug-91 v 1
- o 02-oct-91 v - Fixed bug: Idiosyncrasy for B&W images removed.
- o 02-oct-91 v - Improv*ts: Approximation of the 'Color Map' refined.
- o 04-oct-91 v - Fixed bug: Run-out working array.
- o 05-oct-91 v 2 ··········· Spread worldwide ·······························
- o nov-91 v - Improv*ts: Falls into intuition: screen, overscan.
- o dec-91 v - Improv*ts: Optimization of code.
- o jan-92 v - Improv*ts: Appears assembly-code to do critical steps.
- o mar-92 v - New opt: TIME and SAVE (see above).
- o 08-mar-92 v - Improv*ts: Buffered output on writing IFF destination file.
- o 10-mar-92 v 4 ··········· Spread worldwide ·······························
- o 10-mar-92 v 4.1 Improv*ts: no more integer multip.
- o 10-mar-92 v 4.2 New opt: ABOUT (see above).
- Improv*ts: Better IFF compression.
- o 10-mar-92 v 4.3 New opt: PERFECT (see above).
- Improv*ts: You can see abnormal end partial results.
- Fixed bug: Run-out working array.
- o 10-aug-92 v 4.4 ··········· Spread worldwide ·······························
- ________________________________________________________________________________
- ================================================================================
-
-