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8bitworkshop/src/worker/fs65.js

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JavaScript
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var Module;
if (typeof Module === 'undefined') Module = eval('(function() { try { return Module || {} } catch(e) { return {} } })()');
if (!Module.expectedDataFileDownloads) {
Module.expectedDataFileDownloads = 0;
Module.finishedDataFileDownloads = 0;
}
Module.expectedDataFileDownloads++;
(function() {
var loadPackage = function(metadata) {
var PACKAGE_PATH;
if (typeof window === 'object') {
PACKAGE_PATH = window['encodeURIComponent'](window.location.pathname.toString().substring(0, window.location.pathname.toString().lastIndexOf('/')) + '/');
} else if (typeof location !== 'undefined') {
// worker
PACKAGE_PATH = encodeURIComponent(location.pathname.toString().substring(0, location.pathname.toString().lastIndexOf('/')) + '/');
} else {
throw 'using preloaded data can only be done on a web page or in a web worker';
}
var PACKAGE_NAME = 'fs65.data';
var REMOTE_PACKAGE_BASE = 'fs65.data';
if (typeof Module['locateFilePackage'] === 'function' && !Module['locateFile']) {
Module['locateFile'] = Module['locateFilePackage'];
Module.printErr('warning: you defined Module.locateFilePackage, that has been renamed to Module.locateFile (using your locateFilePackage for now)');
}
var REMOTE_PACKAGE_NAME = typeof Module['locateFile'] === 'function' ?
Module['locateFile'](REMOTE_PACKAGE_BASE) :
((Module['filePackagePrefixURL'] || '') + REMOTE_PACKAGE_BASE);
var REMOTE_PACKAGE_SIZE = metadata.remote_package_size;
var PACKAGE_UUID = metadata.package_uuid;
function fetchRemotePackage(packageName, packageSize, callback, errback) {
var xhr = new XMLHttpRequest();
xhr.open('GET', packageName, true);
xhr.responseType = 'arraybuffer';
xhr.onprogress = function(event) {
var url = packageName;
var size = packageSize;
if (event.total) size = event.total;
if (event.loaded) {
if (!xhr.addedTotal) {
xhr.addedTotal = true;
if (!Module.dataFileDownloads) Module.dataFileDownloads = {};
Module.dataFileDownloads[url] = {
loaded: event.loaded,
total: size
};
} else {
Module.dataFileDownloads[url].loaded = event.loaded;
}
var total = 0;
var loaded = 0;
var num = 0;
for (var download in Module.dataFileDownloads) {
var data = Module.dataFileDownloads[download];
total += data.total;
loaded += data.loaded;
num++;
}
total = Math.ceil(total * Module.expectedDataFileDownloads/num);
if (Module['setStatus']) Module['setStatus']('Downloading data... (' + loaded + '/' + total + ')');
} else if (!Module.dataFileDownloads) {
if (Module['setStatus']) Module['setStatus']('Downloading data...');
}
};
xhr.onerror = function(event) {
throw new Error("NetworkError for: " + packageName);
}
xhr.onload = function(event) {
if (xhr.status == 200 || xhr.status == 304 || xhr.status == 206 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0
var packageData = xhr.response;
callback(packageData);
} else {
throw new Error(xhr.statusText + " : " + xhr.responseURL);
}
};
xhr.send(null);
};
function handleError(error) {
console.error('package error:', error);
};
var fetchedCallback = null;
var fetched = Module['getPreloadedPackage'] ? Module['getPreloadedPackage'](REMOTE_PACKAGE_NAME, REMOTE_PACKAGE_SIZE) : null;
if (!fetched) fetchRemotePackage(REMOTE_PACKAGE_NAME, REMOTE_PACKAGE_SIZE, function(data) {
if (fetchedCallback) {
fetchedCallback(data);
fetchedCallback = null;
} else {
fetched = data;
}
}, handleError);
function runWithFS() {
function assert(check, msg) {
if (!check) throw msg + new Error().stack;
}
Module['FS_createPath']('/', 'include', true, true);
Module['FS_createPath']('/include', 'joystick', true, true);
Module['FS_createPath']('/include', 'tgi', true, true);
Module['FS_createPath']('/include', 'geos', true, true);
Module['FS_createPath']('/include', 'em', true, true);
Module['FS_createPath']('/include', 'sys', true, true);
Module['FS_createPath']('/include', 'mouse', true, true);
Module['FS_createPath']('/', 'asminc', true, true);
Module['FS_createPath']('/', 'cfg', true, true);
Module['FS_createPath']('/', 'lib', true, true);
Module['FS_createPath']('/', 'target', true, true);
Module['FS_createPath']('/target', 'apple2', true, true);
Module['FS_createPath']('/target/apple2', 'drv', true, true);
Module['FS_createPath']('/target/apple2/drv', 'tgi', true, true);
Module['FS_createPath']('/target/apple2/drv', 'joy', true, true);
Module['FS_createPath']('/target/apple2/drv', 'emd', true, true);
Module['FS_createPath']('/target/apple2/drv', 'mou', true, true);
Module['FS_createPath']('/target/apple2/drv', 'ser', true, true);
Module['FS_createPath']('/target/apple2', 'util', true, true);
Module['FS_createPath']('/target', 'nes', true, true);
Module['FS_createPath']('/target/nes', 'drv', true, true);
Module['FS_createPath']('/target/nes/drv', 'tgi', true, true);
Module['FS_createPath']('/target/nes/drv', 'joy', true, true);
Module['FS_createPath']('/', 'neslib', true, true);
function DataRequest(start, end, crunched, audio) {
this.start = start;
this.end = end;
this.crunched = crunched;
this.audio = audio;
}
DataRequest.prototype = {
requests: {},
open: function(mode, name) {
this.name = name;
this.requests[name] = this;
Module['addRunDependency']('fp ' + this.name);
},
send: function() {},
onload: function() {
var byteArray = this.byteArray.subarray(this.start, this.end);
this.finish(byteArray);
},
finish: function(byteArray) {
var that = this;
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
Module['removeRunDependency']('fp ' + that.name);
this.requests[this.name] = null;
}
};
var files = metadata.files;
for (i = 0; i < files.length; ++i) {
new DataRequest(files[i].start, files[i].end, files[i].crunched, files[i].audio).open('GET', files[i].filename);
}
function processPackageData(arrayBuffer) {
Module.finishedDataFileDownloads++;
assert(arrayBuffer, 'Loading data file failed.');
assert(arrayBuffer instanceof ArrayBuffer, 'bad input to processPackageData');
var byteArray = new Uint8Array(arrayBuffer);
var curr;
// copy the entire loaded file into a spot in the heap. Files will refer to slices in that. They cannot be freed though
// (we may be allocating before malloc is ready, during startup).
if (Module['SPLIT_MEMORY']) Module.printErr('warning: you should run the file packager with --no-heap-copy when SPLIT_MEMORY is used, otherwise copying into the heap may fail due to the splitting');
var ptr = Module['getMemory'](byteArray.length);
Module['HEAPU8'].set(byteArray, ptr);
DataRequest.prototype.byteArray = Module['HEAPU8'].subarray(ptr, ptr+byteArray.length);
var files = metadata.files;
for (i = 0; i < files.length; ++i) {
DataRequest.prototype.requests[files[i].filename].onload();
}
Module['removeRunDependency']('datafile_fs65.data');
};
Module['addRunDependency']('datafile_fs65.data');
if (!Module.preloadResults) Module.preloadResults = {};
Module.preloadResults[PACKAGE_NAME] = {fromCache: false};
if (fetched) {
processPackageData(fetched);
fetched = null;
} else {
fetchedCallback = processPackageData;
}
}
if (Module['calledRun']) {
runWithFS();
} else {
if (!Module['preRun']) Module['preRun'] = [];
Module["preRun"].push(runWithFS); // FS is not initialized yet, wait for it
}
Module['removeRunDependency']('fs65.js.metadata');
}
var REMOTE_METADATA_NAME = typeof Module['locateFile'] === 'function' ?
Module['locateFile']('fs65.js.metadata') :
((Module['filePackagePrefixURL'] || '') + 'fs65.js.metadata');
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
if (xhr.readyState === 4 && xhr.status === 200) {
loadPackage(JSON.parse(xhr.responseText));
}
}
xhr.open('GET', REMOTE_METADATA_NAME, true);
xhr.overrideMimeType('application/json');
xhr.send(null);
if (!Module['preRun']) Module['preRun'] = [];
Module["preRun"].push(function() {
Module['addRunDependency']('fs65.js.metadata');
});
})();
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