home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
GEMini Atari
/
GEMini_Atari_CD-ROM_Walnut_Creek_December_1993.iso
/
zip
/
portfoli
/
pgsh21.lzh
/
PGSHOW.DOC
< prev
next >
Wrap
Text File
|
1991-08-22
|
5KB
|
191 lines
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