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1995-07-17
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Tiffin
~~~~~~
Author
======
Peter Greenham
Version
=======
1.21 (17-Jul-95)
Purpose
=======
Reads TIFF files and converts them into 32-bit sprites (16.7 million
colours).
But ChangeFSI does that, doesn't it?
Well, yes, most of the time, but ChangeFSI doesn't cope with all TIFFs. In
particular, it doesn't cope with multi-channel TIFFs such as those exported
by PhotoShop 3 on the PowerMac. Tiffin is likely to read just about any valid
TIFF file thrown at it. You can then drag the sprite into ChangeFSI for
scaling or taking down to fewer colours.
Specifically, Tiffin should work for all TIFFs following the 5.0 or 6.0 TIFF
spec.
Use
===
It's simplicity itself: When run, it installs its icon on the right side of
the icon bar. Drag a TIFF file to it (it must be filetyped as a TIFF), and
after a short delay you will be presented with a Save as box containing a
32-bit sprite which you may drag to disk or another application.
There is an "Interactive" option on the iconbar menu, which is ticked as
default. If you untick this, the sprite file will be written back over the
TIFF source without asking for confirmation. This is useful if you have an
entire folder full of TIFFs you want to convert. MAKE SURE YOU HAVE A BACKUP
OF THE TIFFS FIRST - in case you change your mind. And be warned that,
because there is no compression in RISC OS sprite files, the resulting files
will almost certainly be larger than the TIFF source files.
Clicking on the iconbar icon will give you an error box showing the version
of LIBTIFF being used. See below.
LIBTIFF 3.4beta
===============
Tiffin uses my own port of the TIFF support library written and placed into
the public domain by Sam Leffler of Silicon Graphics Inc. When I have tidied
my port up a little the RISC OS version of the library will be made
available, and, hopefully, integrated into the sources at SGI's FTP site.
Toolbox
=======
To my knowledge, this is the first Freeware application to be made available
that uses the new Toolbox modules that come with Acorn C/C++. For this
reason, a copy of !System is supplied with Tiffin for you to integrate with
your own !System in the normal way. You will need to do this before Tiffin
will run.
Requirements
============
Tiffin will only run on RISC OS 3.50 or later. This is because it produces
32-bit sprites unknown to previous versions of RISC OS, and because it uses
dynamic areas.
Rights
======
This program is copyright © Peter Greenham 1995. It has been released as
FREEWARE. This means you can copy, distribute and make use of it as you see
fit, provided you do not sell it. PD libraries may include it as long as they
do not charge more for disks than is needed to cover costs.
I can accept no liability for data loss or other damages arising from the use
of this product.
Contact
=======
Peter Greenham
peterg@angmulti.demon.co.uk
pgreenham@arcade.demon.co.uk
User #963 Arcade BBS (0181 654 2212)
ChangeLog
=========
1.21 17-Jul-95
Received OSLib 5.00. Fixed, recompiled and relinked using it. No functional
change at all.