Merge pull request #1062 from daslyfe/osc_time_fix

fix OSC timing for recent scheduler updates

packages/core/util.mjs

@@ -61,6 +61,11 @@ export const valueToMidi = (value, fallbackValue) => {
   return fallbackValue;
 };
 
+// used to schedule external event like midi and osc out
+export const getEventOffsetMs = (targetTimeSeconds, currentTimeSeconds) => {
+  return (targetTimeSeconds - currentTimeSeconds) * 1000;
+};
+
 /**
  * @deprecated does not appear to be referenced or invoked anywhere in the codebase
  * @noAutocomplete

packages/desktopbridge/midibridge.mjs

@@ -1,5 +1,5 @@
 import { Invoke } from './utils.mjs';
-import { Pattern, noteToMidi } from '@strudel/core';
+import { Pattern, getEventOffsetMs, noteToMidi } from '@strudel/core';
 
 const ON_MESSAGE = 0x90;
 const OFF_MESSAGE = 0x80;
@@ -9,8 +9,8 @@ Pattern.prototype.midi = function (output) {
   return this.onTrigger((time_deprecate, hap, currentTime, cps, targetTime) => {
     let { note, nrpnn, nrpv, ccn, ccv, velocity = 0.9, gain = 1 } = hap.value;
     //magic number to get audio engine to line up, can probably be calculated somehow
-    const latency = 0.034;
-    const offset = (targetTime - currentTime + latency) * 1000;
+    const latencyMs = 34;
+    const offset = getEventOffsetMs(targetTime, currentTime) + latencyMs;
     velocity = Math.floor(gain * velocity * 100);
     const duration = Math.floor((hap.duration.valueOf() / cps) * 1000 - 10);
     const roundedOffset = Math.round(offset);

packages/desktopbridge/oscbridge.mjs

@@ -1,8 +1,8 @@
-import { parseNumeral, Pattern } from '@strudel/core';
+import { parseNumeral, Pattern, getEventOffsetMs } from '@strudel/core';
 import { Invoke } from './utils.mjs';
 
 Pattern.prototype.osc = function () {
-  return this.onTrigger(async (time, hap, currentTime, cps = 1) => {
+  return this.onTrigger(async (time, hap, currentTime, cps = 1, targetTime) => {
     hap.ensureObjectValue();
     const cycle = hap.wholeOrPart().begin.valueOf();
     const delta = hap.duration.valueOf();
@@ -13,7 +13,7 @@ Pattern.prototype.osc = function () {
 
     const params = [];
 
-    const timestamp = Math.round(Date.now() + (time - currentTime) * 1000);
+    const timestamp = Math.round(Date.now() + getEventOffsetMs(targetTime, currentTime));
 
     Object.keys(controls).forEach((key) => {
       const val = controls[key];

packages/midi/midi.mjs

@@ -5,7 +5,7 @@ This program is free software: you can redistribute it and/or modify it under th
 */
 
 import * as _WebMidi from 'webmidi';
-import { Pattern, isPattern, logger, ref } from '@strudel/core';
+import { Pattern, getEventOffsetMs, isPattern, logger, ref } from '@strudel/core';
 import { noteToMidi } from '@strudel/core';
 import { Note } from 'webmidi';
 // if you use WebMidi from outside of this package, make sure to import that instance:
@@ -120,10 +120,9 @@ Pattern.prototype.midi = function (output) {
     const device = getDevice(output, WebMidi.outputs);
     hap.ensureObjectValue();
     //magic number to get audio engine to line up, can probably be calculated somehow
-    const latency = 0.034;
+    const latencyMs = 34;
     // passing a string with a +num into the webmidi api adds an offset to the current time https://webmidijs.org/api/classes/Output
-    const timeOffsetString = `+${(targetTime - currentTime + latency) * 1000}`;
-
+    const timeOffsetString = `+${getEventOffsetMs(targetTime, currentTime) + latencyMs}`;
     // destructure value
     let { note, nrpnn, nrpv, ccn, ccv, midichan = 1, midicmd, gain = 1, velocity = 0.9 } = hap.value;
 

packages/osc/osc.mjs

@@ -6,7 +6,7 @@ This program is free software: you can redistribute it and/or modify it under th
 
 import OSC from 'osc-js';
 
-import { logger, parseNumeral, Pattern } from '@strudel/core';
+import { logger, parseNumeral, Pattern, getEventOffsetMs } from '@strudel/core';
 
 let connection; // Promise<OSC>
 function connect() {
@@ -44,7 +44,7 @@ function connect() {
  * @returns Pattern
  */
 Pattern.prototype.osc = function () {
-  return this.onTrigger(async (time, hap, currentTime, cps = 1) => {
+  return this.onTrigger(async (time, hap, currentTime, cps = 1, targetTime) => {
     hap.ensureObjectValue();
     const osc = await connect();
     const cycle = hap.wholeOrPart().begin.valueOf();
@@ -56,7 +56,8 @@ Pattern.prototype.osc = function () {
     const keyvals = Object.entries(controls).flat();
     // time should be audio time of onset
     // currentTime should be current time of audio context (slightly before time)
-    const offset = (time - currentTime) * 1000;
+    const offset = getEventOffsetMs(targetTime, currentTime);
+
     // timestamp in milliseconds used to trigger the osc bundle at a precise moment
     const ts = Math.floor(Date.now() + offset);
     const message = new OSC.Message('/dirt/play', ...keyvals);

packages/osc/server.js

@@ -4,7 +4,7 @@ Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/st
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-const OSC = require('osc-js');
+import OSC from 'osc-js';
 
 const config = {
   receiver: 'ws', // @param {string} Where messages sent via 'send' method will be delivered to, 'ws' for Websocket clients, 'udp' for udp client