400 lines
14 KiB
JavaScript
400 lines
14 KiB
JavaScript
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var __awaiter = (this && this.__awaiter) || function(thisArg, _arguments, P, generator) {
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function adopt(value) { return value instanceof P ? value : new P(function(resolve) { resolve(value); }); }
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return new(P || (P = Promise))(function(resolve, reject) {
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function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
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function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
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function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
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step((generator = generator.apply(thisArg, _arguments || [])).next());
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});
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};
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var __generator = (this && this.__generator) || function(thisArg, body) {
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var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] },
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f, y, t, g = Object.create((typeof Iterator === "function" ? Iterator : Object).prototype);
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return g.next = verb(0), g["throw"] = verb(1), g["return"] = verb(2), typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
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function verb(n) { return function(v) { return step([n, v]); }; }
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function step(op) {
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if (f) throw new TypeError("Generator is already executing.");
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while (g && (g = 0, op[0] && (_ = 0)), _) try {
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if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
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if (y = 0, t) op = [op[0] & 2, t.value];
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switch (op[0]) {
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case 0:
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case 1:
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t = op;
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break;
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case 4:
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_.label++;
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return { value: op[1], done: false };
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case 5:
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_.label++;
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y = op[1];
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op = [0];
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continue;
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case 7:
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op = _.ops.pop();
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_.trys.pop();
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continue;
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default:
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if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
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if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
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if (op[0] === 6 && _.label < t[1]) {
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_.label = t[1];
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t = op;
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break;
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}
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if (t && _.label < t[2]) {
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_.label = t[2];
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_.ops.push(op);
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break;
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}
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if (t[2]) _.ops.pop();
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_.trys.pop();
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continue;
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}
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op = body.call(thisArg, _);
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} catch (e) {
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op = [6, e];
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y = 0;
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} finally { f = t = 0; }
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if (op[0] & 5) throw op[1];
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return { value: op[0] ? op[1] : void 0, done: true };
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}
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};
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/* eslint-disable */
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var ChiptuneAudioContext = window.AudioContext || window.webkitAudioContext;
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var libopenmpt;
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var libopenmptLoadPromise;
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class ChiptuneJsConfig {
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constructor(repeatCount, context) {
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this.repeatCount = repeatCount;
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this.context = context;
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}
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};
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class ChiptuneJsPlayer {
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constructor(config) {
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this.config = config;
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this.audioContext = config.context || new ChiptuneAudioContext();
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this.context = this.audioContext.createGain();
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this.currentPlayingNode = null;
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this.handlers = [];
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this.touchLocked = true;
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this.volume = 1;
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}
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initialize() {
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var _this = this;
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if (libopenmptLoadPromise)
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return libopenmptLoadPromise;
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if (libopenmpt)
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return Promise.resolve();
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libopenmptLoadPromise = new Promise(function(resolve, reject) {
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return __awaiter(_this, void 0, void 0, function() {
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var Module_1, e_1;
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return __generator(this, function(_a) {
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switch (_a.label) {
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case 0:
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_a.trys.push([0, 3, 4, 5]);
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return [4 /*yield*/ , Promise.resolve().then(function() { return require('./libopenmpt/libopenmpt.js'); })];
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case 1:
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Module_1 = (_a.sent()).Module;
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return [4 /*yield*/ , new Promise(function(resolve) {
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Module_1['onRuntimeInitialized'] = resolve;
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})];
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case 2:
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_a.sent();
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libopenmpt = Module_1;
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resolve();
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return [3 /*break*/ , 5];
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case 3:
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e_1 = _a.sent();
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reject(e_1);
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return [3 /*break*/ , 5];
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case 4:
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libopenmptLoadPromise = undefined;
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return [7 /*endfinally*/ ];
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case 5:
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return [2 /*return*/ ];
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}
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});
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});
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});
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return libopenmptLoadPromise;
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}
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fireEvent(eventName, response) {
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var handlers = this.handlers;
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if (handlers.length > 0) {
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for (var _i = 0, handlers_1 = handlers; _i < handlers_1.length; _i++) {
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var handler = handlers_1[_i];
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if (handler.eventName === eventName) {
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handler.handler(response);
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}
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}
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}
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}
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addHandler(eventName, handler) {
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this.handlers.push({ eventName: eventName, handler: handler });
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}
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onEnded(handler) {
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this.addHandler('onEnded', handler);
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}
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onError(handler) {
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this.addHandler('onError', handler);
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}
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duration() {
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return libopenmpt._openmpt_module_get_duration_seconds(this.currentPlayingNode.modulePtr);
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}
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position() {
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return libopenmpt._openmpt_module_get_position_seconds(this.currentPlayingNode.modulePtr);
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}
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seek(position) {
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if (this.currentPlayingNode) {
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libopenmpt._openmpt_module_set_position_seconds(this.currentPlayingNode.modulePtr, position);
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}
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}
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metadata() {
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var data = {};
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var keys = libopenmpt.UTF8ToString(libopenmpt._openmpt_module_get_metadata_keys(this.currentPlayingNode.modulePtr)).split(';');
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var keyNameBuffer = 0;
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for (var _i = 0, keys_1 = keys; _i < keys_1.length; _i++) {
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var key = keys_1[_i];
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keyNameBuffer = libopenmpt._malloc(key.length + 1);
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libopenmpt.writeAsciiToMemory(key, keyNameBuffer);
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data[key] = libopenmpt.UTF8ToString(libopenmpt._openmpt_module_get_metadata(this.currentPlayingNode.modulePtr, keyNameBuffer));
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libopenmpt._free(keyNameBuffer);
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}
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return data;
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}
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unlock() {
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var context = this.audioContext;
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var buffer = context.createBuffer(1, 1, 22050);
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var unlockSource = context.createBufferSource();
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unlockSource.buffer = buffer;
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unlockSource.connect(this.context);
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this.context.connect(context.destination);
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unlockSource.start(0);
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this.touchLocked = false;
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}
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load(input) {
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var _this = this;
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return this.initialize().then(function() {
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return new Promise(function(resolve, reject) {
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if (_this.touchLocked) {
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_this.unlock();
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}
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var player = _this;
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if (input instanceof File) {
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var reader_1 = new FileReader();
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reader_1.onload = function() {
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resolve(reader_1.result);
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};
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reader_1.readAsArrayBuffer(input);
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} else {
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window.fetch(input).then(function(response) {
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response.arrayBuffer().then(function(arrayBuffer) {
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resolve(arrayBuffer);
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}).catch(function(error) {
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reject(error);
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});
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}).catch(function(error) {
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reject(error);
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});
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}
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});
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});
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}
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play(buffer) {
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this.unlock();
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this.stop();
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var processNode = this.createLibopenmptNode(buffer, this.buffer);
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if (processNode === null) {
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return;
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}
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libopenmpt._openmpt_module_set_repeat_count(processNode.modulePtr, this.config.repeatCount || 0);
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this.currentPlayingNode = processNode;
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processNode.connect(this.context);
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this.context.connect(this.audioContext.destination);
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}
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stop() {
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if (this.currentPlayingNode != null) {
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this.currentPlayingNode.disconnect();
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this.currentPlayingNode.cleanup();
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this.currentPlayingNode = null;
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}
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}
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togglePause() {
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if (this.currentPlayingNode != null) {
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this.currentPlayingNode.togglePause();
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}
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}
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getPattern() {
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if (this.currentPlayingNode && this.currentPlayingNode.modulePtr) {
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return libopenmpt._openmpt_module_get_current_pattern(this.currentPlayingNode.modulePtr);
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}
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return 0;
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}
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getRow() {
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if (this.currentPlayingNode && this.currentPlayingNode.modulePtr) {
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return libopenmpt._openmpt_module_get_current_row(this.currentPlayingNode.modulePtr);
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}
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return 0;
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}
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getNumPatterns() {
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if (this.currentPlayingNode && this.currentPlayingNode.modulePtr) {
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return libopenmpt._openmpt_module_get_num_patterns(this.currentPlayingNode.modulePtr);
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}
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return 0;
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}
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getCurrentSpeed() {
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if (this.currentPlayingNode && this.currentPlayingNode.modulePtr) {
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return libopenmpt._openmpt_module_get_current_speed(this.currentPlayingNode.modulePtr);
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}
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return 0;
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}
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getCurrentTempo() {
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if (this.currentPlayingNode && this.currentPlayingNode.modulePtr) {
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return libopenmpt._openmpt_module_get_current_tempo(this.currentPlayingNode.modulePtr);
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}
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return 0;
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}
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getPatternNumRows(pattern) {
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if (this.currentPlayingNode && this.currentPlayingNode.modulePtr) {
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return libopenmpt._openmpt_module_get_pattern_num_rows(this.currentPlayingNode.modulePtr, pattern);
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}
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return 0;
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}
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getPatternRowChannel(pattern, row, channel) {
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if (this.currentPlayingNode && this.currentPlayingNode.modulePtr) {
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return libopenmpt.UTF8ToString(libopenmpt._openmpt_module_format_pattern_row_channel(this.currentPlayingNode.modulePtr, pattern, row, channel, 0, true));
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}
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return '';
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}
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getCtls() {
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if (this.currentPlayingNode && this.currentPlayingNode.modulePtr) {
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return libopenmpt._openmpt_module_get_ctls(this.currentPlayingNode.modulePtr);
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}
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return 0;
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}
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version() {
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if (this.currentPlayingNode && this.currentPlayingNode.modulePtr) {
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return libopenmpt._openmpt_get_library_version();
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}
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return 0;
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}
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createLibopenmptNode(buffer, config) {
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var maxFramesPerChunk = 4096;
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var processNode = this.audioContext.createScriptProcessor(2048, 0, 2);
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processNode.config = config;
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processNode.player = this;
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var byteArray = new Int8Array(buffer);
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var ptrToFile = libopenmpt._malloc(byteArray.byteLength);
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libopenmpt.HEAPU8.set(byteArray, ptrToFile);
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processNode.modulePtr = libopenmpt._openmpt_module_create_from_memory(ptrToFile, byteArray.byteLength, 0, 0, 0);
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processNode.nbChannels = libopenmpt._openmpt_module_get_num_channels(processNode.modulePtr);
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processNode.patternIndex = -1;
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processNode.paused = false;
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processNode.leftBufferPtr = libopenmpt._malloc(4 * maxFramesPerChunk);
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processNode.rightBufferPtr = libopenmpt._malloc(4 * maxFramesPerChunk);
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processNode.perf = { 'current': 0, 'max': 0 };
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processNode.cleanup = function() {
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if (this.modulePtr !== 0) {
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libopenmpt._openmpt_module_destroy(this.modulePtr);
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this.modulePtr = 0;
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}
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if (this.leftBufferPtr !== 0) {
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libopenmpt._free(this.leftBufferPtr);
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this.leftBufferPtr = 0;
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}
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if (this.rightBufferPtr !== 0) {
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libopenmpt._free(this.rightBufferPtr);
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this.rightBufferPtr = 0;
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}
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};
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processNode.stop = function() {
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this.disconnect();
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this.cleanup();
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};
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processNode.pause = function() {
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this.paused = true;
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};
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processNode.unpause = function() {
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this.paused = false;
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};
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processNode.togglePause = function() {
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this.paused = !this.paused;
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};
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processNode.getProcessTime = function() {
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var max = this.perf.max;
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this.perf.max = 0;
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return { 'current': this.perf.current, 'max': max };
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};
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processNode.onaudioprocess = function(e) {
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var startTimeP1 = performance.now();
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var outputL = e.outputBuffer.getChannelData(0);
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var outputR = e.outputBuffer.getChannelData(1);
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var framesToRender = outputL.length;
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if (this.ModulePtr === 0) {
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for (var i = 0; i < framesToRender; ++i) {
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outputL[i] = 0;
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outputR[i] = 0;
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}
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this.disconnect();
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this.cleanup();
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return;
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}
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if (this.paused) {
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for (var i = 0; i < framesToRender; ++i) {
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outputL[i] = 0;
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outputR[i] = 0;
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}
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return;
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}
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var framesRendered = 0;
|
||
|
|
var ended = false;
|
||
|
|
var error = false;
|
||
|
|
var currentPattern = libopenmpt._openmpt_module_get_current_pattern(this.modulePtr);
|
||
|
|
var currentRow = libopenmpt._openmpt_module_get_current_row(this.modulePtr);
|
||
|
|
startTimeP1 = startTimeP1 - performance.now();
|
||
|
|
if (currentPattern !== this.patternIndex) {
|
||
|
|
processNode.player.fireEvent('onPatternChange');
|
||
|
|
}
|
||
|
|
processNode.player.fireEvent('onRowChange', { index: currentRow });
|
||
|
|
var startTimeP2 = performance.now();
|
||
|
|
while (framesToRender > 0) {
|
||
|
|
var framesPerChunk = Math.min(framesToRender, maxFramesPerChunk);
|
||
|
|
var actualFramesPerChunk = libopenmpt._openmpt_module_read_float_stereo(this.modulePtr, this.context.sampleRate, framesPerChunk, this.leftBufferPtr, this.rightBufferPtr);
|
||
|
|
if (actualFramesPerChunk === 0) {
|
||
|
|
ended = true;
|
||
|
|
// modulePtr will be 0 on openmpt: error: openmpt_module_read_float_stereo: ERROR: module * not valid or other openmpt error
|
||
|
|
error = !this.modulePtr;
|
||
|
|
}
|
||
|
|
var rawAudioLeft = libopenmpt.HEAPF32.subarray(this.leftBufferPtr / 4, this.leftBufferPtr / 4 + actualFramesPerChunk);
|
||
|
|
var rawAudioRight = libopenmpt.HEAPF32.subarray(this.rightBufferPtr / 4, this.rightBufferPtr / 4 + actualFramesPerChunk);
|
||
|
|
for (var i = 0; i < actualFramesPerChunk; ++i) {
|
||
|
|
outputL[framesRendered + i] = rawAudioLeft[i];
|
||
|
|
outputR[framesRendered + i] = rawAudioRight[i];
|
||
|
|
}
|
||
|
|
for (var i = actualFramesPerChunk; i < framesPerChunk; ++i) {
|
||
|
|
outputL[framesRendered + i] = 0;
|
||
|
|
outputR[framesRendered + i] = 0;
|
||
|
|
}
|
||
|
|
framesToRender -= framesPerChunk;
|
||
|
|
framesRendered += framesPerChunk;
|
||
|
|
}
|
||
|
|
if (ended) {
|
||
|
|
this.disconnect();
|
||
|
|
this.cleanup();
|
||
|
|
error ? processNode.player.fireEvent('onError', { type: 'openmpt' }) : processNode.player.fireEvent('onEnded');
|
||
|
|
}
|
||
|
|
this.perf.current = performance.now() - startTimeP2 + startTimeP1;
|
||
|
|
if (this.perf.current > this.perf.max)
|
||
|
|
this.perf.max = this.perf.current;
|
||
|
|
};
|
||
|
|
return processNode;
|
||
|
|
}
|
||
|
|
};
|