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-
-
- PPShow 1.2 User Manual
-
- Jul 22, 1990
-
-
-
- Preface
- =======
-
- This program is freeware, this means that you can copy it freely as long
- as you don't ask any more money for it than a nominal fee for copying. If
- you want to distribute this program you should keep this document with it.
- This program cannot be used for commercial purposes without written permission
- from the author.
- If you have suggestions or remarks about this program, or if you find
- any bugs, please let me know.
-
- Write to the following address:
-
- Nico François
- Corbielaan 13
- 3060 Bertem BELGIUM
-
-
- Contents
- ========
-
- 1. An introduction
-
- 2. Usage
-
- 3. Features
-
- 4. Note on crunching
-
-
- 1. An introduction
- ==================
-
- PPShow was written to complement one of my other utilities, PowerPacker
- (a command and data cruncher). It is used to show normal IFF ILBM files or
- ILBM files crunched with PowerPacker. The decrunching is done automatically
- so the user doesn't have to know if a file is crunched or not.
- If you haven't got PowerPacker you are of course missing one of the main
- features of this program. PowerPacker is available as shareware (up to
- version 2.3b) or as a commercial program (version 3.0a). Order a copy for
- $17.50 (Europe) or $20 (outside Europe) from UGA, P.O.Box 881, 3700 AW Zeist,
- The Netherlands (only Eurochecks in Dutch Guilders or cash). The commercial
- version offers several enhancements like 40 to 50 times faster crunching and
- overlay crunching.
-
-
- 2. Usage
- ========
-
- PPShow can be used in four different ways.
-
- - First of all via the CLI:
-
- If you enter PPShow without arguments you will get a usage template.
- You use PPShow like this:
-
- PPShow [-h] [<file|dir>]
-
- The program will then load the ILBM file and display it. If the file
- was crunched using PowerPacker 2.0 or higher PPShow will first decrunch it
- for you. If the file was encrypted you will be prompted for the password.
- If you enter PPShow without options, you will be presented with either a
- file prompt or the ARP filerequester (if arp.library or asl.library is
- available). Entering PPShow with a directory instead of a file as an argument
- will also get you a requester, but it will be positioned in the directory you
- specified.
- There is only one option in this version: '-h'. This option is used to
- force HAM mode when no CAMG chunk is found. If you don't specify this option
- PPShow will assume a 6 plane screen is extra half brite. (Note that it is
- wrong for an Amiga IFF ILBM file not to have a CAMG chunk, especially when
- there can be doubt about what display mode to pick !)
- PPShow can be made resident so it doesn't have to be loaded every time
- you use it, use the ARP ARes command or the c: Resident command for this.
- You can't make PPShow resident when it is crunched !! The file is supplied
- as an uncrunched command file with the pure bit set. PPShow is reentrant as
- well, so you can run it from several CLI's at the same time. (Not that this
- is very useful, but it's possible :-D)
-
- Example: '1> PPShow -h dh0:pics/HAMpicWithoutCAMG.pic'
-
- - Via the WorkBench:
-
- There are three different ways of using PPShow via the workbench: you
- can set the default tool of the (crunched) ILBM file to 'PPShow', you can
- single click the PPShow icon and then double click the picture icon or you
- can double-click the PPShow icon and enter the filename in the string gadget
- you will be presented with.
- You set the default tool by single clicking the icon of the picture
- and selecting 'Info' from the workbench menu. You will get a window with
- several gadgets in it, click in the string gadget where it says 'Default
- tool' and enter ':ppshow'. PPShow should be in the root directory of your
- disk for this to work, if e.g. it's in the system directory you should enter
- ':system/ppshow'. Last of all select the 'Save' gadget.
-
- NOTE: - PPShow will add '.pp' to the filename when the file wasn't found.
- This is very useful in the WorkBench enviroment: you can make an
- icon for 'house.pic' but name the file 'house.pic.pp'. Now the
- WorkBench will show an icon with 'house.pic' as name, but if you
- doubleclick it 'house.pic.pp' will be displayed. (As long as there
- is no 'house.pic' file in the directory !)
-
-
- 3. Features
- ===========
-
- - PPShow uses the filerequester of the asl.library or arp.library if
- available.
-
- - Abort PPShow by pressing any key (except <TAB> or 'P') or the right
- mouse button. The screen can be dragged by an invisible drag bar at
- the top.
-
- - The pesky little mouse will be removed while displaying.
-
- - PPShow offers full overscan support, PAL or NTSC. As far as I know
- this is the first ILBM viewing program to do so, looks like PAL Amiga
- owners still get forgotten. All Amiga display modes (like HAM, EHB)
- are of course also supported.
-
- - Deluxe Paint cycling is supported, press <TAB> to (de)activate. Up to
- 8 cycles are supported (DPaint III currently only supports 6).
-
- - PPShow has the ability to print the screen it is displaying, all you
- have to do is press 'P' on the keyboard and wait. The mouse pointer
- will be visible while printing. Please note that the printer.device has
- to be in the 'devs:' directory for PPShow to be able to print, you
- should also have a correct system-configuration for your printer.
-
- - Press 'L' to load another picture, you will be prompted for a filename.
-
-
- 4. Note on crunching
- ====================
-
- A lot of IFF ILBM files are already crunched with the standard ByteRun1
- compression. PowerPacker will crunch these files even further (most of the
- time) but will not crunch them as well as uncrunched ILBM files. So save IFF
- files uncrunched (if you can, e.g. with PixMate) before crunching them, this
- way you will get the best crunching results.
-
-
- As always, I hope you find this program useful !
-
-
- PROGRAM HISTORY:
-
- *****************************************************************************
- VERSION 1.0
-
- First release.
-
- *****************************************************************************
- VERSION 1.1
-
- Decrunching is about 40% faster (accidently used slow decruncher in 1.0)
- Screen now pops to front when picture is ready to be viewed, not before.
- Filerequester used when arp.library is available.
- 'L' command added to load other pictures without restarting PPShow.
-
- *****************************************************************************
- VERSION 1.1a
-
- The Guru isn't with me lately, after using a slow decruncher in 1.0
- by accident I now used a fast but faulty decruncher in 1.1. It
- sometimes didn't decrunch correctly, this has now been fixed. The
- decruncher is still 40% faster than the 1.0 one. (and it's 2 bytes
- shorter :^D )
-
- *****************************************************************************
- VERSION 1.2
-
- Rewritten cycling routine in assembly, so less overhead when cycling.
- Uses the all new powerpacker.library => shorter code.
- Starting PPShow from the CLI with a directory as an argument now puts
- up the requester positioned in that directory. Extremely useful once
- you get used to this :^)
- If you are running Workbench 2.0 PPShow will use the asl.library
- instead of the arp.library (for the filerequester).
- Fixed serious bug: memory wasn't freed when an IFF error occured.
- No longer tries to display small brushes (intuition doesn't like very
- small screens :( )
-
- *****************************************************************************
-
- PPShow 1.2 written by Nico François (Yes, Nico is my first name :-)
-
- (c) 1990 Nico François / PowerPeak
-
- //
- Thanks to \X/ Amiga for being the best computer ever !
-
-