Short:        Discrete Cosine Transform and Inverse.
Author:       wisecracker.bazza@gmail.com (Barry_Walker, G0LCU)
Uploader:     wisecracker bazza gmail com (Lincs Amiga Group, LAG)
Type:         dev/src
Version:      0.00.10
Architecture: m68k-amigaos; generic
Distribution: Aminet

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Architectures: Classic AMIGA A1200(HD), FS-UAE on OSX 10.15.x and Mint 22.3.
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  MINIMUM Requirements Are:-
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  Amiga environment:-
    Classic STOCK AMIGA A1200(HD), default OS3.0x install.
    FS-UAE on Intel APPLE OSX 10.15.x and GNU/Linux Mint Cinnamon 22.3.
    Standard default AMIGA OS_3.0.x install, or better still a highly
    expanded AMIGA with extra RAM will speed things up considerably.
    Python 1.4.0 for a STOCK AMIGA A1200(HD):-

               https://aminet.net/package/dev/lang/Python_14

    This version that requires no extra hardware:-
                           'python_020_ieee'

    Any Python version from 2.x.x to 3.13.x on Intel APPLE OSX 10.15.7.
    Any Python Version from 1.3.0 to 3.12.x on GNU/LINUX MINT CINNAMON 22.3.

    Also as a matter of interest these Python scripts also work inside the
    excellent ADE, the *NIX emulation, but the STOCK AMIGA A1200(HD) needs
    at least an extra 4MB of FastRAM to do so:-

                   https://aminet.net/package/dev/gcc/ADE

    It has NOT been tested on WinUAE emulation, Windows, and WSL, with a
    Python Version installed. It would be nice to know if it does work.

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  History:-
  ---------

  01-07-2026.
  -----------
  Version 0.00.10. Taster upload to see if people are interested.
                   The archive is (C)2026, Barry Walker, and issued as PD,
                   Creative Commons CC0 licence.

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  General:-
  ---------

(Apologies for any typos, etc...)

The Discrete Cosine Transform is probably one of the most important
algorithms developed in modern history.
See the 'The_Cosine_Transform.txt' for more information.

As is normal for me nowadays I post code recipes that work on ancient
versions of current languages that the AMIGA has in the AMINET archive.
In this case Python 1.4.0 for an absolutely STOCK AMIGA A1200(HD).
These recipes are designed to work on _ALL_ platforms and Python Versions
from at least 1.4.0 to 3.13.x without ANY modification at all...

This is a taster purely for we AMIGAns to see who is interested, plus, I am
working on a RADIX-2 1D Fast Cosine Transform and 2D Discrete Cosine
Transform, but getting these to work on such a Python Version spread is NOT
an easy task, so bear with me for these.

In the images you will notice that the floating point resolution has
increased from very early to later and current versions of Python.

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                                IMPORTANT:-
                                -----------

    The Legal Stuff:-
    -----------------

    The authors are not responsible for any damage to, or loss of, or
    failure of equipment or data caused in any way by the use of this code.

    There is NO warranty with the use of this software release and
    YOU USE IT AT YOUR OWN RISK.

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    Testing Evaluation:-
    --------------------

    Classic STOCK AMIGA A1200(HD). 
    FS-UAE emulation of Classic AMIGA test conditions were/are running
    standard OS 3.0.x and using standard ~topaz 8~ fonts throughout.

    I have no idea what strange configuration setups will create so refer
    to the ~The Legal Stuff~ above.

    The whole archive was centred around the AMIGA!
    APPLE OSX 10.15.x and MY Linux flavour were included to make the code as
    universal as possible without any modification at all.

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    Barry Walker, G0LCU.
    wisecracker.bazza@gmail.com

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    A place to visit, literally and URL wise:-
                    https://lincsamiga.org.uk/wordpress/

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    A very useful HardWare related site, (C) Anthony Hoffman, for
    modifications, schematics, repairs and the like is:-

                          http://amiga.serveftp.net/

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