feat(ableton-link): add ableton link support to orca

hundredrabbits · Oct 7, 2020 · 4af0b12 · 4af0b12
1 parent 0050b53
commit 4af0b12
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Showing 7 changed files with 143 additions and 23 deletions.
diff --git a/README.md b/README.md
@@ -149,6 +149,7 @@ All commands have a shorthand equivalent to their first two characters, for exam
 - `midi:1;2` Set Midi output device to `#1`, and input device to `#2`.
 - `udp:1234;5678` Set UDP output port to `1234`, and input port to `5678`.
 - `osc:1234` Set OSC output port to `1234`.
+- `link` Enables/Disables Ableton Link
 
 ## Base36 Table
 

diff --git a/desktop/package-lock.json b/desktop/package-lock.json
diff --git a/desktop/package.json b/desktop/package.json
@@ -27,6 +27,7 @@
     "electron-packager": "^14.2.1"
   },
   "dependencies": {
+    "abletonlink-addon": "^0.2.9",
     "node-osc": "^4.1.8"
   },
   "standard": {

diff --git a/desktop/sources/scripts/client.js b/desktop/sources/scripts/client.js
@@ -11,6 +11,8 @@
 /* global Clock */
 /* global Theme */
 
+const AbletonLink = require("abletonlink-addon")
+
 function Client () {
   this.version = 176
   this.library = library
@@ -26,6 +28,29 @@ function Client () {
   this.commander = new Commander(this)
   this.clock = new Clock(this)
 
+  // Ableton Link
+  this.link = new AbletonLink();
+
+  this.link.setTempoCallback((newTempo) => {
+    newTempo = this.link.getTempo(true)
+    if (this.clock.isLinkEnabled && this.clock.speed.value != newTempo) {
+      this.clock.setSpeed(newTempo, newTempo, true)
+      this.clock.setFrame(0)
+      this.update()
+    };
+  });
+
+  this.link.setStartStopCallback((startStopState) => {
+    console.log("startstop: " + startStopState);
+    if (startStopState && this.clock.isPaused) {
+      this.clock.play(false, true, true)
+    } else if (!startStopState && !this.clock.isPaused) {
+      this.clock.stop(false, true, false)
+      this.clock.setFrame(0)
+      this.update()
+    }
+  });
+
   // Settings
   this.scale = window.devicePixelRatio
   this.grid = { w: 8, h: 8 }
@@ -117,6 +142,7 @@ function Client () {
     this.acels.set('Midi', 'Next Input Device', 'CmdOrCtrl+,', () => { this.clock.setFrame(0); this.io.midi.selectNextInput() })
     this.acels.set('Midi', 'Next Output Device', 'CmdOrCtrl+.', () => { this.clock.setFrame(0); this.io.midi.selectNextOutput() })
     this.acels.set('Midi', 'Refresh Devices', 'CmdOrCtrl+Shift+M', () => { this.io.midi.refresh() })
+    this.acels.set('Midi', 'Toggle Ableton Link', 'CmdOrCtrl+Shift+L', () => { this.toggleLink() })
 
     this.acels.set('Communication', 'Choose OSC Port', 'alt+O', () => { this.commander.start('osc:') })
     this.acels.set('Communication', 'Choose UDP Port', 'alt+U', () => { this.commander.start('udp:') })
@@ -160,6 +186,21 @@ function Client () {
     this.update()
   }
 
+  this.toggleLink = () => {
+    if (this.clock.isLinkEnabled) {
+      this.link.disable()
+      this.link.disableStartStopSync()
+    } else {
+      this.link.enable()
+      this.link.enableStartStopSync()
+      this.clock.setSpeed(this.link.getTempo(true), this.link.getTempo(true), true)
+      if (!this.link.isPlaying()) {
+        this.clock.stop(false, true)
+      }
+    }
+    this.clock.isLinkEnabled = !this.clock.isLinkEnabled
+  }
+
   this.update = () => {
     if (document.hidden === true) { return }
     this.clear()

diff --git a/desktop/sources/scripts/clock.js b/desktop/sources/scripts/clock.js
@@ -9,6 +9,7 @@ function Clock (client) {
   this.isPaused = true
   this.timer = null
   this.isPuppet = false
+  this.isLinkEnabled = false
 
   this.speed = { value: 120, target: 120 }
 
@@ -34,6 +35,15 @@ function Clock (client) {
     if (value) { this.speed.value = clamp(value, 60, 300) }
     if (target) { this.speed.target = clamp(target, 60, 300) }
     if (setTimer === true) { this.setTimer(this.speed.value) }
+    if (this.isLinkEnabled) { this.setFrame(0) }
+  }
+
+  this.setSpeedLink = (value) => {
+    client.link.setTempo(value)
+    if (!client.link.isPlaying()) {
+      this.setFrame(0)
+      client.update()
+    }
   }
 
   this.modSpeed = function (mod = 0, animate = false) {
@@ -56,8 +66,14 @@ function Clock (client) {
     client.update()
   }
 
-  this.play = function (msg = false, midiStart = false) {
-    console.log('Clock', 'Play', msg, midiStart)
+  this.play = function (msg = false, midiStart = false, linkStart = false) {
+    console.log('Clock', 'Play', msg, midiStart, linkStart)
+    if (this.isLinkEnabled && this.isPaused && !linkStart) {
+      this.isPaused = false
+      this.setSpeed(this.speed.target, this.speed.target, true)
+      client.link.play()
+      return
+    }
     if (this.isPaused === false && !midiStart) { return }
     this.isPaused = false
     if (this.isPuppet === true) {
@@ -73,8 +89,17 @@ function Clock (client) {
     }
   }
 
-  this.stop = function (msg = false) {
+  this.stop = function (msg = false, linkStop = false) {
     console.log('Clock', 'Stop')
+    console.log(this.isLinkEnabled, this.isPaused, linkStop)
+    if (this.isLinkEnabled && !this.isPaused && !linkStop) {
+      this.isPaused = true
+      this.clearTimer()
+      client.link.stop()
+      client.io.midi.allNotesOff()
+      client.io.midi.silence()
+      return
+    }
     if (this.isPaused === true) { return }
     this.isPaused = true
     if (this.isPuppet === true) {
@@ -159,10 +184,18 @@ function Clock (client) {
 
   // UI
 
+  this.getUIMessage = function (offset) {
+    if (this.isLinkEnabled) {
+      return `link${this.speed.value}${offset}`
+    } else {
+      return this.isPuppet === true ? 'midi' : `${this.speed.value}${offset}`
+    }
+  }
+
   this.toString = function () {
     const diff = this.speed.target - this.speed.value
     const _offset = Math.abs(diff) > 5 ? (diff > 0 ? `+${diff}` : diff) : ''
-    const _message = this.isPuppet === true ? 'midi' : `${this.speed.value}${_offset}`
+    const _message = this.getUIMessage(_offset)
     const _beat = diff === 0 && client.orca.f % 4 === 0 ? '*' : ''
     return `${_message}${_beat}`
   }

diff --git a/desktop/sources/scripts/commander.js b/desktop/sources/scripts/commander.js
@@ -43,9 +43,24 @@ function Commander (client) {
     play: (p) => { client.clock.play() },
     stop: (p) => { client.clock.stop() },
     run: (p) => { client.run() },
+    link: (p) => { client.toggleLink() },
     // Time
-    apm: (p) => { client.clock.setSpeed(null, p.int) },
-    bpm: (p) => { client.clock.setSpeed(p.int, p.int, true) },
+    apm: (p) => {
+      if (client.clock.isLinkEnabled) {
+        client.clock.setSpeed(null, p.int)
+        client.clock.setSpeedLink(p.int)
+      } else {
+        client.clock.setSpeed(null, p.int)
+      }
+    },
+    bpm: (p) => {
+      if (client.clock.isLinkEnabled) {
+        client.clock.setSpeed(p.int, p.int, true)
+        client.clock.setSpeedLink(p.int)
+      } else {
+        client.clock.setSpeed(p.int, p.int, true)
+      }
+    },
     frame: (p) => { client.clock.setFrame(p.int) },
     rewind: (p) => { client.clock.setFrame(client.orca.f - p.int) },
     skip: (p) => { client.clock.setFrame(client.orca.f + p.int) },

diff --git a/desktop/sources/scripts/core/io/midi.js b/desktop/sources/scripts/core/io/midi.js
@@ -122,23 +122,25 @@ function Midi (client) {
   }
 
   this.receive = function (msg) {
-    switch (msg.data[0]) {
-      // Clock
-      case 0xF8:
-        client.clock.tap()
-        break
-      case 0xFA:
-        console.log('MIDI', 'Start Received')
-        client.clock.play(false, true)
-        break
-      case 0xFB:
-        console.log('MIDI', 'Continue Received')
-        client.clock.play()
-        break
-      case 0xFC:
-        console.log('MIDI', 'Stop Received')
-        client.clock.stop()
-        break
+    if (!client.clock.isLinkEnabled) {
+      switch (msg.data[0]) {
+        // Clock
+        case 0xF8:
+          client.clock.tap()
+          break
+        case 0xFA:
+          console.log('MIDI', 'Start Received')
+          client.clock.play(false, true)
+          break
+        case 0xFB:
+          console.log('MIDI', 'Continue Received')
+          client.clock.play()
+          break
+        case 0xFC:
+          console.log('MIDI', 'Stop Received')
+          client.clock.stop()
+          break
+      }
     }
   }