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livetrax/share/scripts/avldrums_midimap.lua

113 lines
2.7 KiB
Lua

ardour {
["type"] = "dsp",
name = "AVL Drumkit MIDI Map",
category = "Utility",
license = "MIT",
author = "Ardour Community", -- based on MIDI Note Mapper by Alby Musaelian
description = [[Map MIDI notes to drum-kit pcs of 'Black Pearl' or 'Red Zeppelin' AVL drumkit plugins. Unmapped notes are ignored. In case of duplicate assignments the later one is preferred.]]
}
OFF_NOTE = -1
function dsp_ioconfig ()
return { { midi_in = 1, midi_out = 1, audio_in = 0, audio_out = 0}, }
end
function dsp_params ()
local avldrums = {
[36] = "Kick Drum",
[37] = "Snare Side Stick",
[38] = "Snare Center",
[39] = "Hand Clap",
[40] = "Snare Edge",
[41] = "Floor Tom Center",
[42] = "Closed HiHat",
[43] = "Floor Tom Edge",
[44] = "Pedal HiHat",
[45] = "Tom Center",
[46] = "Semi-Open HiHat",
[47] = "Tom Edge",
[48] = "Swish HiHat",
[49] = "Crash Cymbal 1 (left)",
[50] = "Crash Cymbal 1 Choked",
[51] = "Ride Cymbal Tip",
[52] = "Ride Cymbal Choked",
[53] = "Ride Cymbal Bell",
[54] = "Tambourine",
[55] = "Splash Cymbal",
[56] = "Cowbell",
[57] = "Crash Cymbal 2 (right)",
[58] = "Crash Cymbal 2 Choked",
[59] = "Ride Cymbal Shank",
[60] = "Crash Cymbal 3 (large Paiste)",
[61] = "Maracas"
}
local map_scalepoints = {}
map_scalepoints["None"] = OFF_NOTE
for note=0,127 do
local name = ARDOUR.ParameterDescriptor.midi_note_name(note)
map_scalepoints[string.format("%03d (%s)", note, name)] = note
end
local map_params = {}
local i = 1
for note, name in pairs (avldrums) do
map_params[i] = {
["type"] = "input",
name = name,
min = -1,
max = 127,
default = note,
integer = true,
enum = true,
scalepoints = map_scalepoints
}
i = i + 1
end
return map_params
end
function dsp_run (_, _, n_samples)
assert (type(midiin) == "table")
assert (type(midiout) == "table")
local cnt = 1;
function tx_midi (time, data)
midiout[cnt] = {}
midiout[cnt]["time"] = time;
midiout[cnt]["data"] = data;
cnt = cnt + 1;
end
-- build translation table
local translation_table = {}
local ctrl = CtrlPorts:array()
for i = 1, 26 do
if not (ctrl[i] == OFF_NOTE) then
translation_table[ctrl[i]] = 35 + i
end
end
-- for each incoming midi event
for _,b in pairs (midiin) do
local t = b["time"] -- t = [ 1 .. n_samples ]
local d = b["data"] -- midi-event data
local event_type
if #d == 0 then event_type = -1 else event_type = d[1] >> 4 end
if (#d == 3) and (event_type == 9 or event_type == 8 or event_type == 10) then
-- Do the mapping - 2 is note byte for these types
d[2] = translation_table[d[2]] or OFF_NOTE
if not (d[2] == OFF_NOTE) then
tx_midi (t, d)
end
else
tx_midi (t, d)
end
end
end