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-
- PGSHOW - The FULL-FEATURED
- Atari Portfolio Graphic Viewer
- by Don Messerli
-
- PGSHOW V2.1 (06/01/91 - 1788 bytes)
- (c)Copyright 1991 Software Vineyard
- All Rights Reserved
-
- (How about more 40 column manuals!!)
- (With no tabs this time)
-
- New Features
- ------------
- I found ways to squeek another 20%
- increase in speed from PGSHOW.
- This was mainly because I'm getting
- better at 8088 assembler.
-
- See Revision History at end of this
- file to see what changed from 1.1
- to 2.0.
-
- What is it?
- -----------
-
- PGSHOW is a program that allows you
- to view Portfolio Graphic Files on
- the Atari Portfolio. These files
- are now compressed and have a .PGC
- extension. If you have old PGF
- files, please compress them with
- PGCOMP.EXE.
-
- How do I use it?
- ----------------
-
- SYNTAX: PGSHOW <filename> [seconds]
-
- Seconds is a value from 0 to 255.
- If you specify 0 secs, PGSHOW will
- display the next file specified
- without a delay. This is good for
- animation-like effects.
- If you leave off the seconds, PGSHOW
- will wait for a keypress.
-
- Multiple filename-seconds pairs can
- be specified on the command line.
- PGSHOW will show one file after the
- other.
-
- The default file extension is .PGC,
- it can be omitted.
-
- Where do I get .PGC files?
- --------------------------
-
- There are 6 .PGC files included in
- the distribution:
-
- GORBY.PGC Gorbachev
- FUJI.PGC Atari Computer Logo
- PORTF.PGC Portfolio Logo
- BOMB.PGC A bomb with lit fuse
- USA.PGC A map of the U.S.
- SPIRAL.PGC A rectangular spiral
-
- Also included in the distribution
- is a batch file called ademo.bat.
- It is to be used with Warren
- Flarity's ADEMO pictures to show
- off the new animation capabilities
- of PGSHOW.
-
- You can also create your own .PGC
- files with tools that will be
- forthcoming from Software Vineyard:
-
- PGEDIT A .PGC file editor that
- runs on a desktop PC.
- Has it's own GUI and some
- nice features. Requires
- VGA, 512K, and Microsoft(R)
- compatible mouse.
- (Available now)
-
- PGDUMP A screen dump utility to
- dump graphic screens from
- within other programs.
- (ETA September 1991)
-
- PGLIB A library of machine
- language routines to add
- to your own C programs for
- reading and writing .PGF
- files.
- (Available now)
-
- PGC Grabber for the Mac
- A program that runs on the
- Mac and allows you to grab
- the upper left-hand corner
- of a MacPaint image and
- save it as a PGC file.
- (Available now)
-
- PGC Grabber for the Atari ST
- A program that runs on the
- ST and allows you to grab
- any part of a NEO, DEGAS,
- or DEGAS ELITE picture and
- save it as a PGC file.
- (Available June 1991)
-
- All of the above programs are going
- be Public Domain and free to all!
-
- PBASIC 3.1 and above have commands to
- support reading, writing, and
- showing PGC files.
- (*PBASIC is (c)1991 BJ Gleason)
-
- The .PGC format
- ---------------
-
- The PGC (compressed) format was
- developed jointly by Don Messerli
- of Software Vineyard and BJ Gleason
- of Thin Air Labs.
- The format is non-proprietary. The
- specification is in the file
- PGCSPEC.ZIP. We encourage all who
- are developing graphics applications
- for the Portfolio to support the PGC
- format. It is my hope that all PGF
- files be converted to PGC format and
- that people forgive me for jumping
- the gun with the PGF format. Some
- programs will continue to create PGF
- files. They can be converted with
- PGCOMP.ZIP
-
- What if I find bugs?
- --------------------
-
- Please report any bugs and send
- comments to Don Messerli
-
- Compuserve 72500,1671
- GEnie DMESS
-
- Revision History
- ----------------
- Version 2.1 06-01-91
- - Speed increase of 20% through
- better coding.
-
- Version 2.0 01-06-91
- - Uses direct writes to LCD
- controller memory to increase
- speed and eliminate visible
- screen refresh.
- - Specifying 0 seconds causes
- no delay. Earlier versions
- waited for a keypress.
-
- Version 1.10 12-29-90
- -No longer support .PGF files.
- -Added support for .PGC files
- which are compressed graphic files.
-
- Version 1.01 12-23-90
- -Fixed bug where multiple filenames
- with no seconds specified caused
- PGSHOW to skip next filename
- -Made .PGF default file extension,
- so it doesn't have to be typed on
- command line.
-
- Version 1.00 12-16-90
- Initial Release
-
- In Closing
- ----------
-
- Have fun with it! Upload
- your graphic creations for
- others to enjoy.......
- DM
-