fixed
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e0c4997f1e
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5 changed files with 137 additions and 123 deletions
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@ -61,6 +61,11 @@ export const valueToMidi = (value, fallbackValue) => {
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return fallbackValue;
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};
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// used to schedule external event like midi and osc out
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export const getEventOffsetMs = (targetTime, currentTime) => {
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return (targetTime - currentTime) * 1000;
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};
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/**
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* @deprecated does not appear to be referenced or invoked anywhere in the codebase
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* @noAutocomplete
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@ -1,8 +1,8 @@
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import { parseNumeral, Pattern } from '@strudel/core';
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import { parseNumeral, Pattern, getEventOffsetMs } from '@strudel/core';
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import { Invoke } from './utils.mjs';
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Pattern.prototype.osc = function () {
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return this.onTrigger(async (time, hap, currentTime, cps = 1) => {
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return this.onTrigger(async (time, hap, currentTime, cps = 1, targetTime) => {
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hap.ensureObjectValue();
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const cycle = hap.wholeOrPart().begin.valueOf();
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const delta = hap.duration.valueOf();
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@ -13,7 +13,7 @@ Pattern.prototype.osc = function () {
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const params = [];
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const timestamp = Math.round(Date.now() + (time - currentTime) * 1000);
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const timestamp = Math.round(Date.now() + getEventOffsetMs(targetTime, currentTime));
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Object.keys(controls).forEach((key) => {
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const val = controls[key];
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@ -5,7 +5,7 @@ This program is free software: you can redistribute it and/or modify it under th
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*/
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import * as _WebMidi from 'webmidi';
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import { Pattern, isPattern, logger, ref } from '@strudel/core';
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import { Pattern, getEventOffsetMs, isPattern, logger, ref } from '@strudel/core';
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import { noteToMidi } from '@strudel/core';
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import { Note } from 'webmidi';
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// if you use WebMidi from outside of this package, make sure to import that instance:
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@ -120,9 +120,9 @@ Pattern.prototype.midi = function (output) {
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const device = getDevice(output, WebMidi.outputs);
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hap.ensureObjectValue();
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//magic number to get audio engine to line up, can probably be calculated somehow
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const latency = 0.034;
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const latencyMs = 34;
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// passing a string with a +num into the webmidi api adds an offset to the current time https://webmidijs.org/api/classes/Output
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const timeOffsetString = `+${(targetTime - currentTime + latency) * 1000}`;
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const timeOffsetString = `${getEventOffsetMs(targetTime, currentTime) + latencyMs}`;
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// destructure value
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let { note, nrpnn, nrpv, ccn, ccv, midichan = 1, midicmd, gain = 1, velocity = 0.9 } = hap.value;
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@ -6,7 +6,7 @@ This program is free software: you can redistribute it and/or modify it under th
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import OSC from 'osc-js';
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import { logger, parseNumeral, Pattern } from '@strudel/core';
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import { logger, parseNumeral, Pattern, getEventOffsetMs } from '@strudel/core';
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let connection; // Promise<OSC>
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function connect() {
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@ -44,7 +44,7 @@ function connect() {
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* @returns Pattern
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*/
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Pattern.prototype.osc = function () {
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return this.onTrigger(async (time, hap, currentTime, cps = 1) => {
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return this.onTrigger(async (time, hap, currentTime, cps = 1, targetTime) => {
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hap.ensureObjectValue();
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const osc = await connect();
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const cycle = hap.wholeOrPart().begin.valueOf();
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@ -56,7 +56,8 @@ Pattern.prototype.osc = function () {
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const keyvals = Object.entries(controls).flat();
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// time should be audio time of onset
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// currentTime should be current time of audio context (slightly before time)
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const offset = (time - currentTime) * 1000;
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const offset = getEventOffsetMs(targetTime, currentTime);
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// timestamp in milliseconds used to trigger the osc bundle at a precise moment
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const ts = Math.floor(Date.now() + offset);
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const message = new OSC.Message('/dirt/play', ...keyvals);
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