[Sub-sonic-development] MTM now supported

[<Do...@as...>]

Yep that's right after some late night coding and half a day of pure
confusion I've been able to add near perfect (I think I need to add the fix
for the bug in the format) MTM support to IMF. This process taught me a lot
about the way in which I should load module files making future format
implementations much easier. Of course MTM isn't really the format most of
you are intereted in seeing supported so I'll carry on with the others so
that IMF can start looking like a serious multi-format module system.

I have defined three major format milestones that will ensure good support
and a robust music playing core. The 3 formats are in the chronological
order in which I plan to implement them and are as follows:

1. S3M - Scream Tracker 3 - A now obsolete format this format use to be as
popular as MOD in it's heyday, as it borrows largely from the MOD format and
is sample based it should be the first major format to be implemented after
MOD.

2. XM - Fast Tracker 2 - This format is still popular but it is not modelled
on MOD as much and therefore differs in many areas. It will bring about a
reworking in the player internals due to linear frequency tables and much
more advanced instruments, but it paves the way for the other more advanced
formats.

3. IT - Impulse Tracker - The most advanced tracker to date, I personally
haven't studied it too much but I am well aware of the problems it presents
to traditional module players planning to integrate it. It introduces the
concept of polyphony where you can have more than one note playing on one
channel at the same time which is going to be a bit of a nightmare to
implement. The other thing is there appears to be filters (listen to the
tune Drifting Onwards included with the tracker for an example of them)
which means lots of extra shit to program in.

Obviously there will be all the other less known formats to implement as I
go along but most of them are a lot more trival to implement unless they try
'ground breaking' new concepts.

If IMF goes the way I want it to there will be about 60 formats to implement
in total.

Doug