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Almathera Ten Pack 3: CDPD 3
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Almathera Ten on Ten - Disc 3: CDPD3.iso
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scopedisk194
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mostrav1.04
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changes.doc
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1995-03-19
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1.01/1.02
Changes? Absolutely NO changes. Only, a bug in the ARP docs caused
and incredibly wide range of problems, from memory completely wiped
(including the backed-up battery clock) to a simple crash-on-exit.
Now, thanks to Christopher A. Wichura, the 1.01 code is ok. So, even
you, if you're using ARP, beware:
ARPALLOC() DOES NOT PASS ANY TRACKER BACK THROUGH LASTTRACKER!!!!
You must use the memory pointer you get as a DefaultTracker *, too. Or
you'll get a NULL tracker pointer...
The same holds for ArpAllocFReq().
Seba
1.04
I fixed a couple of thing. No major changes tho 8^(.
The dreaded RGB reading guru has gone. Now Mostra complains that "Too
many bitplanes" if you try to display a 24-bitplanes IFF RGB file.
The same happens if you try to display a DPaint stencil (0 bitplanes).
In this case, of course, the message is "No bitplanes". I consider
them both broken IFF specs.
The keyboard handling is much smarter and closer to Commodore's
guidelines. SHIFT-cursor brings you to the borders of the picture,
ALT-cursor moves by a screen width/height-16 pixels, and cursor alone
(CTRLed) moves by 8 (16) pixels.
The priority handling is much smarter, too. If you start Mostra with
a priority higher than 1, no priority change will be issued.
Moreover, at exit the original task priority will be restored
(previously Mostra set the priority to 0).
Moving to the bottom of a SHAM interlaced picture with an odd number
of lines caused confusion in the copperlist. This has been fixed, but
with the loss of the display of the last line of the picture (nothing
so terrible anyway).
A SHAM image displayed in a screen taller than its height produced a
random copperlist. This has been fixed.
A new option allows to lock the input from the keyboard during the
display.
Another new option locks the picture (you can't scroll around) but the
memory in which the file was loaded is immediately freed after the
decompression. This should allow for double buffering on a 512K
machine. The new memory management is also automatically activated if
the option SECS is used or the picture dimensions are less than the
screen dimensions (since the picture scrolling is locked anyway).
There are other areas which needed updates, but I'm busy on my copier,
SuperDuper.
I would like to thank Walter Dörwald (Germany), Jürgen E. Haug
(Germany), Svante Kleist (Sweden), Tim Beard (Australia) and Christian
König (Germany) for having sent the shareware contribution for Mostra.