MIDI Channel -> synth assignment

[seclorum]

In order to support multi-timbrality, we need a way to route different MIDI messages to different synth instances on the basis of MIDI channel assignments.

e.g.

Channel: 1 drums.lua 2 synth1.lua 3 sampler.lua &etc.

One way to accomplish this would be to add a "-C " channel assignment argument to midipatch.

[kallaballa]

I agree but I'd like to have three places to configure this.

• An optional config file
• Command line switches
• GUI mapper

That doesn't mean they all have to be done at once. But sooner or later we gonna need them. To understand how this could be implemented look at the following places:

• Parsing and loading of lua synths https://github.com/kallaballa/PatchScript/blob/a770beb030c529ce82ac8d27ca00d6e74d33eba2/src/PatchScript.cpp#L73-L80

• MIDI handling https://github.com/kallaballa/MidiPatch/blob/5aaa1d9bfe8938c55942d2adcef662a1f3d9ebd6/src/midipatch.cpp#L125-L208

• Voice mapping https://github.com/kallaballa/PatchScript/blob/a770beb030c529ce82ac8d27ca00d6e74d33eba2/src/PolySynth.cpp#L20-L53

[seclorum]

MIDI Handling: now switched to a per-instance MIBY parser, which means Voice mapping/lua synth channel assignments can be implemented a little cleaner.