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import Value, Op, Input, match from require 'core.base'
import input, output, inout, apply_range from require 'lib.midi.core'
gate = Value.meta
meta:
name: 'gate'
summary: "gate from note-on and note-off messages."
examples: { '(midi/gate port note [chan])' }
value: class extends Op
new: =>
super 'bool', false
setup: (inputs) =>
{ port, note, chan } = match 'midi/port num num?', inputs
super
port: Input.io port
note: Input.value note
chan: Input.value chan or Value.num -1
tick: =>
{ :port, :note, :chan } = @inputs
if note\dirty! or chan\dirty!
@out\set false
if port\dirty!
for msg in port!\receive!
if msg.a == note! and (chan! == -1 or msg.chan == chan!)
if msg.status == 'note-on'
@out\set true
elseif msg.status == 'note-off'
@out\set false
trig = Value.meta
meta:
name: 'trig'
summary: "`bang`s from note-on messages."
examples: { '(midi/trig port note [chan])' }
value: class extends Op
new: =>
super 'bang', false
setup: (inputs) =>
{ port, note, chan } = match 'midi/port num num?', inputs
super
port: Input.io port
note: Input.value note
chan: Input.value chan or Value.num -1
tick: =>
{ :port, :note, :chan } = @inputs
if note\dirty! or chan\dirty!
@out\set false
if port\dirty!
for msg in port!\receive!
if msg.a == note! and (chan! == -1 or msg.chan == chan!)
if msg.status == 'note-on'
@out\set true
trig = Value.meta
meta:
name: 'trig'
summary: "`num` from cc-change messages."
examples: { '(midi/cc port cc [chan [range]])' }
description: "
`range` can be one of:
- 'raw' [ 0 - 128[
- 'uni' [ 0 - 1[ (default)
- 'bip' [-1 - 1[
- 'rad' [ 0 - tau[
- 'deg' [ 0 - 360[
- (num) [ 0 - num["
value: class extends Op
new: =>
super 'num'
setup: (inputs) =>
{ port, cc, chan, range } = match 'midi/port num num? any?', inputs
super
port: Input.io port
cc: Input.value cc
chan: Input.value chan or Value.num -1
range: Input.value range or Value.str 'uni'
if not @out\unwrap!
@out\set apply_range @inputs.range, 0
tick: =>
{ :port, :cc, :chan, :range } = @inputs
if port\dirty!
for msg in port!\receive!
if msg.status == 'control-change' and
(chan! == -1 or msg.chan == chan!) and
msg.a == cc!
@out\set apply_range range, msg.b
{
:input
:output
:inout
:gate
:trig
:cc
}
|
