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Add high-resolution CC option to midi

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This commit is contained in:
Matthew Kaney 2024-11-16 14:35:18 -05:00
parent 23a4bf6641
commit bd69ffb4b7
1 changed files with 23 additions and 15 deletions
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38
packages/midi/midi.mjs
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@ -89,10 +89,11 @@ if (typeof window !== 'undefined') {
}); });
} }
Pattern.prototype.midi = function(output) { Pattern.prototype.midi = function (output) {
if (isPattern(output)) { if (isPattern(output)) {
throw new Error( throw new Error(
`.midi does not accept Pattern input. Make sure to pass device name with single quotes. Example: .midi('${WebMidi.outputs?.[0]?.name || 'IAC Driver Bus 1' `.midi does not accept Pattern input. Make sure to pass device name with single quotes. Example: .midi('${
WebMidi.outputs?.[0]?.name || 'IAC Driver Bus 1'
}')`, }')`,
); );
} }
@ -112,7 +113,8 @@ Pattern.prototype.midi = function(output) {
const device = getDevice(portName, outputs); const device = getDevice(portName, outputs);
const otherOutputs = outputs.filter((o) => o.name !== device.name); const otherOutputs = outputs.filter((o) => o.name !== device.name);
logger( logger(
`Midi enabled! Using "${device.name}". ${otherOutputs?.length ? `Also available: ${getMidiDeviceNamesString(otherOutputs)}` : '' `Midi enabled! Using "${device.name}". ${
otherOutputs?.length ? `Also available: ${getMidiDeviceNamesString(otherOutputs)}` : ''
}`, }`,
); );
}, },
@ -148,16 +150,20 @@ Pattern.prototype.midi = function(output) {
// Handle mapped parameters if mapping exists // Handle mapped parameters if mapping exists
if (mapping) { if (mapping) {
Object.entries(hap.value).forEach(([param, value]) => { Object.entries(mapping).forEach(([name, paramSpec]) => {
const mappedParam = mapping[param]; if (name in hap.value && typeof hap.value[name] === 'number') {
if (mappedParam && typeof value === 'number') { const value = hap.value[name];
const scaled = Math.round(value * 127);
device.sendControlChange( // ccnLsb will only exist if this is a high-resolution CC message
mappedParam.cc, const [ccnMsb, ccnLsb] = Array.isArray(paramSpec.cc) ? paramSpec.cc : [paramSpec.cc];
scaled,
mappedParam.channel || midichan, const ccvMsb = ccnLsb === undefined ? Math.round(value * 127) : Math.round(value * 16383) >> 7;
{ time: timeOffsetString } device.sendControlChange(ccnMsb, ccvMsb, paramSpec.channel || midichan, { time: timeOffsetString });
);
if (ccnLsb !== undefined) {
const ccvLsb = Math.round(value * 16383) & 0b1111111;
device.sendControlChange(ccnLsb, ccvLsb, paramSpec.channel || midichan, { time: timeOffsetString });
}
} }
}); });
} }
@ -194,7 +200,8 @@ const refs = {};
export async function midin(input) { export async function midin(input) {
if (isPattern(input)) { if (isPattern(input)) {
throw new Error( throw new Error(
`midin: does not accept Pattern as input. Make sure to pass device name with single quotes. Example: midin('${WebMidi.outputs?.[0]?.name || 'IAC Driver Bus 1' `midin: does not accept Pattern as input. Make sure to pass device name with single quotes. Example: midin('${
WebMidi.outputs?.[0]?.name || 'IAC Driver Bus 1'
}')`, }')`,
); );
} }
@ -208,7 +215,8 @@ export async function midin(input) {
if (initial) { if (initial) {
const otherInputs = WebMidi.inputs.filter((o) => o.name !== device.name); const otherInputs = WebMidi.inputs.filter((o) => o.name !== device.name);
logger( logger(
`Midi enabled! Using "${device.name}". ${otherInputs?.length ? `Also available: ${getMidiDeviceNamesString(otherInputs)}` : '' `Midi enabled! Using "${device.name}". ${
otherInputs?.length ? `Also available: ${getMidiDeviceNamesString(otherInputs)}` : ''
}`, }`,
); );
refs[input] = {}; refs[input] = {};