Short:    V2.0 of the GIF-viewer for the Picasso-II board
Author:   rhiestan@iiic.ethz.ch
Uploader: rhiestan@iiic.ethz.ch
Type:     gfx/board




			=========================

			     ShowGIF V2.0

			=========================


			     Jan. 8, 1995


		Copyright (c) 1994/95 by Roman Hiestand




Copyright notice
----------------

The program ShowGIF and its documentation  are written and copyrighted by
Roman Hiestand. They may be distributed freely providing the following
restrictions are satisfied:

- Distributors may not charge more than the cost of a diskette used in
  the distribution of this program.

- Distributors may only distribute the unmodified copy of the original
  program, along with it's documentation, and copyright notices intact.

- Commercial  distribution  is  only  possible with written permission
  from the author.


Disclaimer
----------

This program and its documentation is provided "as is". No warranties are made
with respect to the accuracy, reliability, performance or operation of this
software and information. You are using this program at your own risk. The
author is not liable for any damages that may have been caused by using this
software.



Description
-----------

ShowGIF is, as the name says, a GIF viewer for the Picasso-II graphics board
of VillageTronic.
The program can be started from CLI or Workbench with one or more file
names/icons. If the program cannot load an image (because you didn't submit
a filename or the file doesn't exist), a file requester pops up.


Usage
-----

From CLI: ShowGIF Image [...]

 Template: FILES/M,BUF/N,DELAY/N,NOCENTER/S,VERBOSE/S,ALL/S


Features
--------

- fully programmed in assembler
- uses a file buffer (50 KB by default)
- CLI or WB start
- very system-friendly
- (nearly) pure
- can be aborted at anytime (except during a crash ... :-) )
- no 'light' background (since V1.1)
- file requester (since V1.2)
- FileBufSize can be specified (since V1.3)
- supports entire GIF87a standard (local color maps, interlaced images,
	multiple images, since V1.5)
- supports partly GIF89a standard (comment/plain text extension)
- Parameters via WB/ToolTypes (since V1.8)
- Pattern matching (since V2.0)


Requirements
------------

Kick 2.0 and vilintuisup.library version > 2.0.



Revisions
---------

	1.0	-	first public release

	1.1	-	added support for interlaced images
			now fills background with darkest color

	1.2	-	file requester added

	1.3	-	now checks for Ctrl-C (requested by Markus Illenseer)
			corrected a bug in GetCode
			added CLI-option BUF

	1.4	-	Multiple images supported
			Output window for workbench
			Faster ~10 %

	1.5	-	Doesn't quit anymore if GIF-revision is >89a
			Supports Local color table
			Correctly processes (skips) GIF89a extension blocks
			CLI-option DELAY
			some small optimisations

	1.6	-	Now supports some GIF89a extensions
			even faster !

	1.7	-	Slightly faster (~10%) and shorter

	1.8	-	Added Center-behaviour, NOCENTER option
			VERBOSE option
			added ToolTypes parsing

	2.0	-	Pattern matching (this is worth skipping 1.9 :-)


Address
-------

I can be reached at

Roman Hiestand
Luziaweg 15
CH-8807 Freienbach
Switzerland

Fax: CH-055/48 26 37

email: rhiestan@iiic.ethz.ch