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Add program change(pc) and sysex to midi

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This commit is contained in:
nkymut 2025-01-14 16:54:53 +08:00
parent bd69ffb4b7
commit 859f153ec6
1 changed files with 19 additions and 1 deletions
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20
packages/midi/midi.mjs
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@ -134,7 +134,7 @@ Pattern.prototype.midi = function (output) {
// 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 = `+${getEventOffsetMs(targetTime, currentTime) + latencyMs}`;
// destructure value
let { note, nrpnn, nrpv, ccn, ccv, midichan = 1, midicmd, gain = 1, velocity = 0.9 } = hap.value;
let { note, nrpnn, nrpv, ccn, ccv, midichan = 1, midicmd, gain = 1, velocity = 0.9, pc, sysex } = hap.value;
velocity = gain * velocity;
@ -167,7 +167,25 @@ Pattern.prototype.midi = function (output) {
}
});
}
// Handle program change
if (pc !== undefined) {
if (typeof pc !== 'number' || pc < 0 || pc > 127) {
throw new Error('expected pc (program change) to be a number between 0 and 127');
}
device.sendProgramChange(pc, midichan, { time: timeOffsetString });
}
// Handle sysex
if (sysex !== undefined) {
if (!Array.isArray(sysex)) {
throw new Error('expected sysex to be an array of numbers (0-255)');
}
if (!sysex.every((byte) => Number.isInteger(byte) && byte >= 0 && byte <= 255)) {
throw new Error('all sysex bytes must be integers between 0 and 255');
}
device.sendSysex(undefined, sysex, { time: timeOffsetString });
}
// Handle control change
if (ccv !== undefined && ccn !== undefined) {
if (typeof ccv !== 'number' || ccv < 0 || ccv > 1) {
throw new Error('expected ccv to be a number between 0 and 1');