@elgato-stream-deck/core
Version:
An npm module for interfacing with the Elgato Stream Deck
79 lines • 3.29 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.EncoderLedService = void 0;
class EncoderLedService {
#device;
#encoderControls;
constructor(device, allControls) {
this.#device = device;
this.#encoderControls = allControls.filter((control) => control.type === 'encoder');
}
async clearAll() {
const ps = [];
for (const control of this.#encoderControls) {
if (control.hasLed)
ps.push(this.setEncoderColor(control.index, 0, 0, 0));
if (control.ledRingSteps > 0)
ps.push(this.setEncoderRingSingleColor(control.index, 0, 0, 0));
}
await Promise.all(ps);
}
async setEncoderColor(encoder, red, green, blue) {
const control = this.#encoderControls.find((c) => c.index === encoder);
if (!control)
throw new Error(`Invalid encoder index ${encoder}`);
if (!control.hasLed)
throw new Error('Encoder does not have an LED');
const buffer = new Uint8Array(1024);
buffer[0] = 0x02;
buffer[1] = 0x10;
buffer[2] = encoder;
buffer[3] = red;
buffer[4] = green;
buffer[5] = blue;
await this.#device.sendReports([buffer]);
}
async setEncoderRingSingleColor(encoder, red, green, blue) {
const control = this.#encoderControls.find((c) => c.index === encoder);
if (!control)
throw new Error(`Invalid encoder index ${encoder}`);
if (control.ledRingSteps <= 0)
throw new Error('Encoder does not have an LED ring');
const buffer = new Uint8Array(1024);
buffer[0] = 0x02;
buffer[1] = 0x0f;
buffer[2] = encoder;
for (let i = 0; i < control.ledRingSteps; i++) {
const offset = 3 + i * 3;
buffer[offset] = red;
buffer[offset + 1] = green;
buffer[offset + 2] = blue;
}
await this.#device.sendReports([buffer]);
}
async setEncoderRingColors(encoder, colors) {
const control = this.#encoderControls.find((c) => c.index === encoder);
if (!control)
throw new Error(`Invalid encoder index ${encoder}`);
if (control.ledRingSteps <= 0)
throw new Error('Encoder does not have an LED ring');
if (colors.length !== control.ledRingSteps * 3)
throw new Error('Invalid colors length');
let colorsBuffer = colors instanceof Uint8Array ? colors : new Uint8Array(colors);
// If there is an offset, repack the buffer to change the start point
if (control.lcdRingOffset) {
const oldColorsBuffer = colorsBuffer;
colorsBuffer = new Uint8Array(oldColorsBuffer.length);
colorsBuffer.set(oldColorsBuffer.slice(control.lcdRingOffset * 3), 0);
colorsBuffer.set(oldColorsBuffer.slice(0, control.lcdRingOffset * 3), control.lcdRingOffset * 3);
}
const buffer = new Uint8Array(1024);
buffer[0] = 0x02;
buffer[1] = 0x0f;
buffer[2] = encoder;
buffer.set(colorsBuffer, 3);
await this.#device.sendReports([buffer]);
}
}
exports.EncoderLedService = EncoderLedService;
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