mirror of
https://github.com/sehugg/8bitworkshop.git
synced 2024-05-28 23:41:32 +00:00
202 lines
7.6 KiB
JavaScript
202 lines
7.6 KiB
JavaScript
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var Module = typeof Module !== 'undefined' ? Module : {};
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if (!Module.expectedDataFileDownloads) {
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Module.expectedDataFileDownloads = 0;
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}
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Module.expectedDataFileDownloads++;
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(function() {
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var loadPackage = function(metadata) {
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var PACKAGE_PATH;
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if (typeof window === 'object') {
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PACKAGE_PATH = window['encodeURIComponent'](window.location.pathname.toString().substring(0, window.location.pathname.toString().lastIndexOf('/')) + '/');
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} else if (typeof location !== 'undefined') {
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// worker
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PACKAGE_PATH = encodeURIComponent(location.pathname.toString().substring(0, location.pathname.toString().lastIndexOf('/')) + '/');
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} else {
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throw 'using preloaded data can only be done on a web page or in a web worker';
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}
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var PACKAGE_NAME = '/home/pzp/8bitworkshop-compilers/output/fs/fssmlrc.data';
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var REMOTE_PACKAGE_BASE = 'fssmlrc.data';
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if (typeof Module['locateFilePackage'] === 'function' && !Module['locateFile']) {
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Module['locateFile'] = Module['locateFilePackage'];
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err('warning: you defined Module.locateFilePackage, that has been renamed to Module.locateFile (using your locateFilePackage for now)');
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}
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var REMOTE_PACKAGE_NAME = Module['locateFile'] ? Module['locateFile'](REMOTE_PACKAGE_BASE, '') : REMOTE_PACKAGE_BASE;
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var REMOTE_PACKAGE_SIZE = metadata['remote_package_size'];
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var PACKAGE_UUID = metadata['package_uuid'];
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function fetchRemotePackage(packageName, packageSize, callback, errback) {
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var xhr = new XMLHttpRequest();
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xhr.open('GET', packageName, true);
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xhr.responseType = 'arraybuffer';
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xhr.onprogress = function(event) {
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var url = packageName;
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var size = packageSize;
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if (event.total) size = event.total;
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if (event.loaded) {
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if (!xhr.addedTotal) {
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xhr.addedTotal = true;
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if (!Module.dataFileDownloads) Module.dataFileDownloads = {};
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Module.dataFileDownloads[url] = {
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loaded: event.loaded,
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total: size
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};
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} else {
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Module.dataFileDownloads[url].loaded = event.loaded;
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}
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var total = 0;
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var loaded = 0;
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var num = 0;
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for (var download in Module.dataFileDownloads) {
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var data = Module.dataFileDownloads[download];
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total += data.total;
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loaded += data.loaded;
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num++;
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}
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total = Math.ceil(total * Module.expectedDataFileDownloads/num);
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if (Module['setStatus']) Module['setStatus']('Downloading data... (' + loaded + '/' + total + ')');
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} else if (!Module.dataFileDownloads) {
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if (Module['setStatus']) Module['setStatus']('Downloading data...');
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}
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};
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xhr.onerror = function(event) {
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throw new Error("NetworkError for: " + packageName);
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}
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xhr.onload = function(event) {
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if (xhr.status == 200 || xhr.status == 304 || xhr.status == 206 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0
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var packageData = xhr.response;
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callback(packageData);
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} else {
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throw new Error(xhr.statusText + " : " + xhr.responseURL);
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}
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};
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xhr.send(null);
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};
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function handleError(error) {
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console.error('package error:', error);
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};
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var fetchedCallback = null;
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var fetched = Module['getPreloadedPackage'] ? Module['getPreloadedPackage'](REMOTE_PACKAGE_NAME, REMOTE_PACKAGE_SIZE) : null;
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if (!fetched) fetchRemotePackage(REMOTE_PACKAGE_NAME, REMOTE_PACKAGE_SIZE, function(data) {
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if (fetchedCallback) {
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fetchedCallback(data);
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fetchedCallback = null;
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} else {
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fetched = data;
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}
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}, handleError);
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function runWithFS() {
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function assert(check, msg) {
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if (!check) throw msg + new Error().stack;
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}
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Module['FS_createPath']('/', 'include', true, true);
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Module['FS_createPath']('/include', 'sys', true, true);
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Module['FS_createPath']('/', 'lib', true, true);
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/** @constructor */
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function DataRequest(start, end, audio) {
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this.start = start;
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this.end = end;
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this.audio = audio;
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}
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DataRequest.prototype = {
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requests: {},
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open: function(mode, name) {
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this.name = name;
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this.requests[name] = this;
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Module['addRunDependency']('fp ' + this.name);
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},
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send: function() {},
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onload: function() {
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var byteArray = this.byteArray.subarray(this.start, this.end);
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this.finish(byteArray);
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},
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finish: function(byteArray) {
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var that = this;
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Module['FS_createDataFile'](this.name, null, byteArray, true, true, true); // canOwn this data in the filesystem, it is a slide into the heap that will never change
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Module['removeRunDependency']('fp ' + that.name);
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this.requests[this.name] = null;
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}
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};
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var files = metadata['files'];
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for (var i = 0; i < files.length; ++i) {
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new DataRequest(files[i]['start'], files[i]['end'], files[i]['audio']).open('GET', files[i]['filename']);
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}
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function processPackageData(arrayBuffer) {
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assert(arrayBuffer, 'Loading data file failed.');
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assert(arrayBuffer instanceof ArrayBuffer, 'bad input to processPackageData');
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var byteArray = new Uint8Array(arrayBuffer);
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var curr;
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// copy the entire loaded file into a spot in the heap. Files will refer to slices in that. They cannot be freed though
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// (we may be allocating before malloc is ready, during startup).
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var ptr = Module['getMemory'](byteArray.length);
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Module['HEAPU8'].set(byteArray, ptr);
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DataRequest.prototype.byteArray = Module['HEAPU8'].subarray(ptr, ptr+byteArray.length);
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var files = metadata['files'];
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for (var i = 0; i < files.length; ++i) {
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DataRequest.prototype.requests[files[i].filename].onload();
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}
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Module['removeRunDependency']('datafile_/home/pzp/8bitworkshop-compilers/output/fs/fssmlrc.data');
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};
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Module['addRunDependency']('datafile_/home/pzp/8bitworkshop-compilers/output/fs/fssmlrc.data');
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if (!Module.preloadResults) Module.preloadResults = {};
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Module.preloadResults[PACKAGE_NAME] = {fromCache: false};
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if (fetched) {
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processPackageData(fetched);
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fetched = null;
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} else {
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fetchedCallback = processPackageData;
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}
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}
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if (Module['calledRun']) {
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runWithFS();
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} else {
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if (!Module['preRun']) Module['preRun'] = [];
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Module["preRun"].push(runWithFS); // FS is not initialized yet, wait for it
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}
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Module['removeRunDependency']('fssmlrc.js.metadata');
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}
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function runMetaWithFS() {
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Module['addRunDependency']('fssmlrc.js.metadata');
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var REMOTE_METADATA_NAME = Module['locateFile'] ? Module['locateFile']('fssmlrc.js.metadata', '') : 'fssmlrc.js.metadata';
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var xhr = new XMLHttpRequest();
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xhr.onreadystatechange = function() {
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if (xhr.readyState === 4 && xhr.status === 200) {
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loadPackage(JSON.parse(xhr.responseText));
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}
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}
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xhr.open('GET', REMOTE_METADATA_NAME, true);
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xhr.overrideMimeType('application/json');
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xhr.send(null);
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}
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if (Module['calledRun']) {
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runMetaWithFS();
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} else {
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if (!Module['preRun']) Module['preRun'] = [];
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Module["preRun"].push(runMetaWithFS);
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}
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})();
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