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Add Lua plugin to map DM10-mkII Studio HiHat MIDI messages

This commit is contained in:
Robin Gareus 2024-05-14 17:20:52 +02:00
parent 5b02561573
commit ac47688023
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04

View File

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ardour {
["type"] = "dsp",
name = "DM10-mkII-Studio HiHat",
category = "Utility",
license = "MIT",
author = "Ardour Community",
description = [[Map HiHat MIDI events depending on pedal CC. Specifically MIDI Note Number 8 is translated to 54,47,58 deending on CC-8.]]
}
function dsp_ioconfig ()
return { { midi_in = 1, midi_out = 1, audio_in = 0, audio_out = 0}, }
end
local hihat_note = -1
local hihat_state = 0
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
-- 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
-- intercept CC message
if #d == 3 and event_type == 11 and d[2] == 8 then
hihat_state = d[3]
end
-- map Note event
if (#d == 3) and d[2] == 8 and event_type == 9 then
if hihat_state < 42 then hihat_note = 54 -- Hihat_Closed
elseif hihat_state < 92 then hihat_note = 46 -- Hihat_Semi_Open
else hihat_note = 58 -- Hihat_Open
end
d[2] = hihat_note
end
-- translate aftertouch
if (#d == 3) and d[2] == 8 and event_type == 10 then
if (hihat_note > 0) then
d[2] = hihat_note
end
end
-- intercept note off
if (#d == 3) and d[2] == 8 and event_type == 8 then
if (hihat_note > 0) then
d[2] = hihat_note
end
--hihat_note = -1
end
tx_midi (t, d)
end
end