MIDI to IMF converter (for personal fun and Project 16)

[joncampbell123]

Sparky's got my sample IMF code working, great!

It might help game dev if a tool were developed to read MIDI and generate IMF.

IMF as a music format is ideal because playback is as simple as counting timer ticks and writing raw values to the OPL3 chip from the file.

Much of the work already done in hw/adlib to play midi could be re-used to do so.

Copying over the music notes is easy. Making instruments sound like they should is the harder part.

An alternative "cheaters" method might be to add OPL3 logging to DOSBox-X, then play the MIDI in Windows 3.1, and record whatever their MIDI driver is writing to the chip :)