dmx-ts
Version:
A nodejs DMX library
59 lines • 4.34 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.EnttecUSBDMXProDriver = void 0;
const abstract_serial_driver_1 = require("./abstract-serial-driver");
const ENTTEC_PRO_DMX_STARTCODE = 0x00;
const ENTTEC_PRO_START_OF_MSG = 0x7e;
const ENTTEC_PRO_END_OF_MSG = 0xe7;
const ENTTEC_PRO_SEND_DMX_RQ = 0x06;
class EnttecUSBDMXProDriver extends abstract_serial_driver_1.AbstractSerialDriver {
constructor(serialPort, options = {}) {
super(serialPort, {
serialPortOptions: {
'baudRate': 250000,
'dataBits': 8,
'stopBits': 2,
'parity': 'none',
},
sendInterval: 1000 / (options.dmxSpeed || 40),
});
this._readyToWrite = true;
}
sendUniverse() {
return __awaiter(this, void 0, void 0, function* () {
if (!this.serialPort.writable) {
return;
}
if (this._readyToWrite) {
const hdr = Buffer.from([
ENTTEC_PRO_START_OF_MSG,
ENTTEC_PRO_SEND_DMX_RQ,
(this.universeBuffer.length) & 0xff,
((this.universeBuffer.length) >> 8) & 0xff,
ENTTEC_PRO_DMX_STARTCODE,
]);
const msg = Buffer.concat([
hdr,
this.universeBuffer.slice(1),
Buffer.from([ENTTEC_PRO_END_OF_MSG]),
]);
this._readyToWrite = false;
this.serialPort.write(msg);
this.serialPort.drain(() => {
this._readyToWrite = true;
});
}
});
}
}
exports.EnttecUSBDMXProDriver = EnttecUSBDMXProDriver;
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