
var unityFramework = (() => {
  var _scriptDir = typeof document !== 'undefined' && document.currentScript ? document.currentScript.src : undefined;
  if (typeof __filename !== 'undefined') _scriptDir = _scriptDir || __filename;
  return (
function(unityFramework) {
  unityFramework = unityFramework || {};



// The Module object: Our interface to the outside world. We import
// and export values on it. There are various ways Module can be used:
// 1. Not defined. We create it here
// 2. A function parameter, function(Module) { ..generated code.. }
// 3. pre-run appended it, var Module = {}; ..generated code..
// 4. External script tag defines var Module.
// We need to check if Module already exists (e.g. case 3 above).
// Substitution will be replaced with actual code on later stage of the build,
// this way Closure Compiler will not mangle it (e.g. case 4. above).
// Note that if you want to run closure, and also to use Module
// after the generated code, you will need to define   var Module = {};
// before the code. Then that object will be used in the code, and you
// can continue to use Module afterwards as well.
var Module = typeof unityFramework != 'undefined' ? unityFramework : {};

// See https://caniuse.com/mdn-javascript_builtins_object_assign

// Set up the promise that indicates the Module is initialized
var readyPromiseResolve, readyPromiseReject;
Module['ready'] = new Promise(function(resolve, reject) {
  readyPromiseResolve = resolve;
  readyPromiseReject = reject;
});

      if (!Object.getOwnPropertyDescriptor(Module['ready'], '_main')) {
        Object.defineProperty(Module['ready'], '_main', { configurable: true, get: function() { abort('You are getting _main on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js') } });
        Object.defineProperty(Module['ready'], '_main', { configurable: true, set: function() { abort('You are setting _main on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js') } });
      }
    

      if (!Object.getOwnPropertyDescriptor(Module['ready'], '_ReleaseKeys')) {
        Object.defineProperty(Module['ready'], '_ReleaseKeys', { configurable: true, get: function() { abort('You are getting _ReleaseKeys on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js') } });
        Object.defineProperty(Module['ready'], '_ReleaseKeys', { configurable: true, set: function() { abort('You are setting _ReleaseKeys on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js') } });
      }
    

      if (!Object.getOwnPropertyDescriptor(Module['ready'], '_getMemInfo')) {
        Object.defineProperty(Module['ready'], '_getMemInfo', { configurable: true, get: function() { abort('You are getting _getMemInfo on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js') } });
        Object.defineProperty(Module['ready'], '_getMemInfo', { configurable: true, set: function() { abort('You are setting _getMemInfo on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js') } });
      }
    

      if (!Object.getOwnPropertyDescriptor(Module['ready'], '_SendMessageFloat')) {
        Object.defineProperty(Module['ready'], '_SendMessageFloat', { configurable: true, get: function() { abort('You are getting _SendMessageFloat on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js') } });
        Object.defineProperty(Module['ready'], '_SendMessageFloat', { configurable: true, set: function() { abort('You are setting _SendMessageFloat on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js') } });
      }
    

      if (!Object.getOwnPropertyDescriptor(Module['ready'], '_SendMessageString')) {
        Object.defineProperty(Module['ready'], '_SendMessageString', { configurable: true, get: function() { abort('You are getting _SendMessageString on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js') } });
        Object.defineProperty(Module['ready'], '_SendMessageString', { configurable: true, set: function() { abort('You are setting _SendMessageString on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js') } });
      }
    

      if (!Object.getOwnPropertyDescriptor(Module['ready'], '_SendMessage')) {
        Object.defineProperty(Module['ready'], '_SendMessage', { configurable: true, get: function() { abort('You are getting _SendMessage on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js') } });
        Object.defineProperty(Module['ready'], '_SendMessage', { configurable: true, set: function() { abort('You are setting _SendMessage on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js') } });
      }
    

      if (!Object.getOwnPropertyDescriptor(Module['ready'], '_SetFullscreen')) {
        Object.defineProperty(Module['ready'], '_SetFullscreen', { configurable: true, get: function() { abort('You are getting _SetFullscreen on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js') } });
        Object.defineProperty(Module['ready'], '_SetFullscreen', { configurable: true, set: function() { abort('You are setting _SetFullscreen on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js') } });
      }
    

      if (!Object.getOwnPropertyDescriptor(Module['ready'], '_InjectProfilerSample')) {
        Object.defineProperty(Module['ready'], '_InjectProfilerSample', { configurable: true, get: function() { abort('You are getting _InjectProfilerSample on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js') } });
        Object.defineProperty(Module['ready'], '_InjectProfilerSample', { configurable: true, set: function() { abort('You are setting _InjectProfilerSample on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js') } });
      }
    

      if (!Object.getOwnPropertyDescriptor(Module['ready'], '___stdio_exit')) {
        Object.defineProperty(Module['ready'], '___stdio_exit', { configurable: true, get: function() { abort('You are getting ___stdio_exit on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js') } });
        Object.defineProperty(Module['ready'], '___stdio_exit', { configurable: true, set: function() { abort('You are setting ___stdio_exit on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js') } });
      }
    

      if (!Object.getOwnPropertyDescriptor(Module['ready'], 'onRuntimeInitialized')) {
        Object.defineProperty(Module['ready'], 'onRuntimeInitialized', { configurable: true, get: function() { abort('You are getting onRuntimeInitialized on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js') } });
        Object.defineProperty(Module['ready'], 'onRuntimeInitialized', { configurable: true, set: function() { abort('You are setting onRuntimeInitialized on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js') } });
      }
    

// --pre-jses are emitted after the Module integration code, so that they can
// refer to Module (if they choose; they can also define Module)



// Emscripten 1.x had a function Pointer_stringify() to marshal C strings to JS strings. That has been obsoleted by the new UTF8/16/32ToString() API family.
function Pointer_stringify(s, len) {
	warnOnce("The JavaScript function 'Pointer_stringify(ptrToSomeCString)' is obsoleted and will be removed in a future Unity version. Please call 'UTF8ToString(ptrToSomeCString)' instead.");
	return UTF8ToString(s, len);
}
Module['Pointer_stringify'] = Pointer_stringify;
var stackTraceReference = "(^|\\n)(\\s+at\\s+|)jsStackTrace(\\s+\\(|@)([^\\n]+):\\d+:\\d+(\\)|)(\\n|$)";
var stackTraceReferenceMatch = jsStackTrace().match(new RegExp(stackTraceReference));
if (stackTraceReferenceMatch)
  Module.stackTraceRegExp = new RegExp(stackTraceReference.replace("([^\\n]+)", stackTraceReferenceMatch[4].replace(/[\\^${}[\]().*+?|]/g,"\\$&")).replace("jsStackTrace", "[^\\n]+"));

var abort = function (what) {
  if (ABORT)
    return;
  ABORT = true;
  EXITSTATUS = 1;
  if (typeof ENVIRONMENT_IS_PTHREAD !== "undefined" && ENVIRONMENT_IS_PTHREAD)
    console.error("Pthread aborting at " + new Error().stack);
  if (what !== undefined) {
    out(what);
    err(what);
    what = JSON.stringify(what)
  } else {
    what = "";
  }
  var message = "abort(" + what + ") at " + stackTrace();
  if (Module.abortHandler && Module.abortHandler(message))
    return;
  throw message;
}

Module["SetFullscreen"] = function (fullscreen) {
  if (typeof runtimeInitialized === 'undefined' || !runtimeInitialized) {
    console.log ("Runtime not initialized yet.");
  } else if (typeof JSEvents === 'undefined') {
    console.log ("Player not loaded yet.");
  } else {
    var tmp = JSEvents.canPerformEventHandlerRequests;
    JSEvents.canPerformEventHandlerRequests = function () { return 1; };
    Module.ccall("SetFullscreen", null, ["number"], [fullscreen]);
    JSEvents.canPerformEventHandlerRequests = tmp;
  }
};
if (!Module['ENVIRONMENT_IS_PTHREAD']) {
  Module['preRun'].push(function () {
    // Initialize the IndexedDB based file system. Module['unityFileSystemInit'] allows
    // developers to override this with their own function, when they want to do cloud storage
    // instead.
    var unityFileSystemInit = Module['unityFileSystemInit'] || function () {
      FS.mkdir('/idbfs');
      FS.mount(IDBFS, {}, '/idbfs');
      Module.addRunDependency('JS_FileSystem_Mount');
      FS.syncfs(true, function (err) {
        if (err)
          console.log('IndexedDB is not available. Data will not persist in cache and PlayerPrefs will not be saved.');
        Module.removeRunDependency('JS_FileSystem_Mount');
      });
    };
    unityFileSystemInit();
  });
}

var videoInputDevices = []; // Set to null to disable video input devices altogether.
var videoInputDevicesEnumerated = false;
var removeEnumerateMediaDevicesRunDependency;
var enumerateWatchdog = null;

// Bug/limitation: Chrome does not specify deviceIds for any MediaDeviceInfo input devices at least in Chrome 85 on Windows 10
// This means that we need to use an awkward heuristic way of matching old video input connections to new ones.
function matchToOldDevice(newDevice) {
	var oldDevices = Object.keys(videoInputDevices);
	// First match by deviceId
	for(var i = 0; i < oldDevices.length; ++i) {
		var old = videoInputDevices[oldDevices[i]];
		if (old.deviceId && old.deviceId == newDevice.deviceId) return old;
	}
	// Then by object identity, in case that is supported.
	for(var i = 0; i < oldDevices.length; ++i) {
		var old = videoInputDevices[oldDevices[i]];
		if (old == newDevice) return old;
	}
	// Then by label
	for(var i = 0; i < oldDevices.length; ++i) {
		var old = videoInputDevices[oldDevices[i]];
		if (old.label && old.label == newDevice.label) return old;
	}
	// Last, by groupId + kind combination
	for(var i = 0; i < oldDevices.length; ++i) {
		var old = videoInputDevices[oldDevices[i]];
		if (old.groupId && old.kind && old.groupId == newDevice.groupId && old.kind == newDevice.kind) return old;
	}
}

function assignNewVideoInputId() {
	for(var i = 0;; ++i) {
		if (!videoInputDevices[i]) return i;
	}
}

function updateVideoInputDevices(devices) {
	removeEnumerateMediaDevicesRunDependency();
	// we're going to clear the list of videoInputDevices and regenerate it to get more accurate info after being granted camera access
	videoInputDevices = [];
	var retainedDevices = {};
	var newDevices = [];

	// Find devices that still exist
	devices.forEach(function (device) {
		if (device.kind === 'videoinput') { // Only interested in WebCam inputs
			var oldDevice = matchToOldDevice(device);
			if (oldDevice) {
				retainedDevices[oldDevice.id] = oldDevice;
			} else {
				newDevices.push(device);
			}
		}
	});
	videoInputDevices = retainedDevices;

	// Assign IDs to video input devices that are new
	newDevices.forEach(function (device) {
		if (!device.id) {
			device.id = assignNewVideoInputId();
			// Attempt to name the device. In both Firefox and Chrome, label is null.
			// In Chrome, deviceId is null. (could use it here, but human-readable
			// name is probably better than a long hash)
			device.name = device.label || ("Video input #" + (device.id + 1));

			// Chrome 85 on Android labels camera provides devices with labels like
			// "camera2 0, facing back" and "camera2 1, facing front", use that to
			// determine whether the device is front facing or not.
			// some labels don't provide that info, like the camera on a 2019 MacbookPro: FaceTime HD Camera (Built-in)
			// so if there's no "front" or "back" in the label or name, we're going to assume it's front facing


			device.isFrontFacing = device.name.toLowerCase().includes('front') || (!(device.name.toLowerCase().includes('front')) && !(device.name.toLowerCase().includes('back')));

			videoInputDevices[device.id] = device;
		}
	});
}

function enumerateMediaDeviceList() {
	if (!videoInputDevices) return;
	// Bug/limitation: If there are multiple video or audio devices connected,
	// Chrome only lists one of each category (audioinput/videoinput/audioutput) (tested Chrome 85 on Windows 10)
	navigator.mediaDevices.enumerateDevices().then(function(devices) {
		updateVideoInputDevices(devices);
		videoInputDevicesEnumerated = true;
	}).catch(function(e) {
		console.warn('Unable to enumerate media devices: ' + e + '\nWebcams will not be available.');
		disableAccessToMediaDevices();
	});

	// Work around Firefox 81 bug on Windows:
	// https://bugzilla.mozilla.org/show_bug.cgi?id=1397977, devicechange
	// events do not fire, so resort to polling for device changes once every
	// 60 seconds.
	if (/Firefox/.test(navigator.userAgent)) {
		setTimeout(enumerateMediaDeviceList, 60000);
		warnOnce('Applying workaround to Firefox bug https://bugzilla.mozilla.org/show_bug.cgi?id=1397977');
	}
}

function disableAccessToMediaDevices() {
	// Safari 11 has navigator.mediaDevices, but navigator.mediaDevices.add/removeEventListener is undefined
	if (navigator.mediaDevices && navigator.mediaDevices.removeEventListener) {
		navigator.mediaDevices.removeEventListener('devicechange', enumerateMediaDeviceList);
	}
	videoInputDevices = null;
}
Module['disableAccessToMediaDevices'] = disableAccessToMediaDevices;

if (!navigator.mediaDevices) {
	console.warn('navigator.mediaDevices not supported by this browser. Webcam access will not be available.' + (location.protocol == 'https:' ? '' : ' Try hosting the page over HTTPS, because some browsers disable webcam access when insecure HTTP is being used.'));
	disableAccessToMediaDevices();
} else if (typeof ENVIRONMENT_IS_PTHREAD === "undefined" || !ENVIRONMENT_IS_PTHREAD) setTimeout(function() {
	try {
		// Do not start engine main() until we have completed enumeration.
		addRunDependency('enumerateMediaDevices');
		removeEnumerateMediaDevicesRunDependency = function() {
			if (enumerateWatchdog !== null) clearTimeout(enumerateWatchdog);
			removeRunDependency('enumerateMediaDevices');
			if (navigator.mediaDevices) console.log('navigator.mediaDevices support available');
			removeEnumerateMediaDevicesRunDependency = function(){};
		}
		// Enumerate media devices now at startup..
		enumerateMediaDeviceList();
		// Firefox won't complete device enumeration if the window isn't in focus causing the startup to hang, so we
		// wait a second before removing the dependency and starting with an empty list of devices. Moving forward it's
		// likely more browsers will assume this standard.
		// See https://w3c.github.io/mediacapture-main/#dom-mediadevices-enumeratedevices
		enumerateWatchdog = setTimeout(removeEnumerateMediaDevicesRunDependency, 1000);

		// .. and whenever the connected devices list changes.
		navigator.mediaDevices.addEventListener('devicechange', enumerateMediaDeviceList);
	} catch(e) {
		console.warn('Unable to enumerate media devices: ' + e);
		disableAccessToMediaDevices();
	}
}, 0);

function SendMessage(gameObject, func, param) {
    var func_cstr = stringToNewUTF8(func);
    var gameObject_cstr = stringToNewUTF8(gameObject);
    var param_cstr = 0;

    try {
        if (param === undefined)
            _SendMessage(gameObject_cstr, func_cstr);
        else if (typeof param === "string") {
            param_cstr = stringToNewUTF8(param);
            _SendMessageString(gameObject_cstr, func_cstr, param_cstr);
        }
        else if (typeof param === "number")
            _SendMessageFloat(gameObject_cstr, func_cstr, param);
        else
            throw "" + param + " is does not have a type which is supported by SendMessage.";

    } finally {
        _free(param_cstr);
        _free(gameObject_cstr);
        _free(func_cstr);
    }
}
Module["SendMessage"] = SendMessage; // to avoid emscripten stripping

// Sometimes an existing Module object exists with properties
// meant to overwrite the default module functionality. Here
// we collect those properties and reapply _after_ we configure
// the current environment's defaults to avoid having to be so
// defensive during initialization.
var moduleOverrides = Object.assign({}, Module);

var arguments_ = [];
var thisProgram = './this.program';
var quit_ = (status, toThrow) => {
  throw toThrow;
};

// Determine the runtime environment we are in. You can customize this by
// setting the ENVIRONMENT setting at compile time (see settings.js).

// Attempt to auto-detect the environment
var ENVIRONMENT_IS_WEB = typeof window == 'object';
var ENVIRONMENT_IS_WORKER = typeof importScripts == 'function';
// N.b. Electron.js environment is simultaneously a NODE-environment, but
// also a web environment.
var ENVIRONMENT_IS_NODE = typeof process == 'object' && typeof process.versions == 'object' && typeof process.versions.node == 'string';
var ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;

if (Module['ENVIRONMENT']) {
  throw new Error('Module.ENVIRONMENT has been deprecated. To force the environment, use the ENVIRONMENT compile-time option (for example, -s ENVIRONMENT=web or -s ENVIRONMENT=node)');
}

// `/` should be present at the end if `scriptDirectory` is not empty
var scriptDirectory = '';
function locateFile(path) {
  if (Module['locateFile']) {
    return Module['locateFile'](path, scriptDirectory);
  }
  return scriptDirectory + path;
}

// Hooks that are implemented differently in different runtime environments.
var read_,
    readAsync,
    readBinary,
    setWindowTitle;

// Normally we don't log exceptions but instead let them bubble out the top
// level where the embedding environment (e.g. the browser) can handle
// them.
// However under v8 and node we sometimes exit the process direcly in which case
// its up to use us to log the exception before exiting.
// If we fix https://github.com/emscripten-core/emscripten/issues/15080
// this may no longer be needed under node.
function logExceptionOnExit(e) {
  if (e instanceof ExitStatus) return;
  let toLog = e;
  if (e && typeof e == 'object' && e.stack) {
    toLog = [e, e.stack];
  }
  err('exiting due to exception: ' + toLog);
}

var fs;
var nodePath;
var requireNodeFS;

if (ENVIRONMENT_IS_NODE) {
  if (!(typeof process == 'object' && typeof require == 'function')) throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)');
  if (ENVIRONMENT_IS_WORKER) {
    scriptDirectory = require('path').dirname(scriptDirectory) + '/';
  } else {
    scriptDirectory = __dirname + '/';
  }

// include: node_shell_read.js


requireNodeFS = () => {
  // Use nodePath as the indicator for these not being initialized,
  // since in some environments a global fs may have already been
  // created.
  if (!nodePath) {
    fs = require('fs');
    nodePath = require('path');
  }
};

read_ = function shell_read(filename, binary) {
  requireNodeFS();
  filename = nodePath['normalize'](filename);
  return fs.readFileSync(filename, binary ? undefined : 'utf8');
};

readBinary = (filename) => {
  var ret = read_(filename, true);
  if (!ret.buffer) {
    ret = new Uint8Array(ret);
  }
  assert(ret.buffer);
  return ret;
};

readAsync = (filename, onload, onerror) => {
  requireNodeFS();
  filename = nodePath['normalize'](filename);
  fs.readFile(filename, function(err, data) {
    if (err) onerror(err);
    else onload(data.buffer);
  });
};

// end include: node_shell_read.js
  if (process['argv'].length > 1) {
    thisProgram = process['argv'][1].replace(/\\/g, '/');
  }

  arguments_ = process['argv'].slice(2);

  // MODULARIZE will export the module in the proper place outside, we don't need to export here

  process['on']('uncaughtException', function(ex) {
    // suppress ExitStatus exceptions from showing an error
    if (!(ex instanceof ExitStatus)) {
      throw ex;
    }
  });

  // Without this older versions of node (< v15) will log unhandled rejections
  // but return 0, which is not normally the desired behaviour.  This is
  // not be needed with node v15 and about because it is now the default
  // behaviour:
  // See https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode
  process['on']('unhandledRejection', function(reason) { throw reason; });

  quit_ = (status, toThrow) => {
    if (keepRuntimeAlive()) {
      process['exitCode'] = status;
      throw toThrow;
    }
    logExceptionOnExit(toThrow);
    process['exit'](status);
  };

  Module['inspect'] = function () { return '[Emscripten Module object]'; };

} else
if (ENVIRONMENT_IS_SHELL) {

  if ((typeof process == 'object' && typeof require === 'function') || typeof window == 'object' || typeof importScripts == 'function') throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)');

  if (typeof read != 'undefined') {
    read_ = function shell_read(f) {
      return read(f);
    };
  }

  readBinary = function readBinary(f) {
    let data;
    if (typeof readbuffer == 'function') {
      return new Uint8Array(readbuffer(f));
    }
    data = read(f, 'binary');
    assert(typeof data == 'object');
    return data;
  };

  readAsync = function readAsync(f, onload, onerror) {
    setTimeout(() => onload(readBinary(f)), 0);
  };

  if (typeof scriptArgs != 'undefined') {
    arguments_ = scriptArgs;
  } else if (typeof arguments != 'undefined') {
    arguments_ = arguments;
  }

  if (typeof quit == 'function') {
    quit_ = (status, toThrow) => {
      logExceptionOnExit(toThrow);
      quit(status);
    };
  }

  if (typeof print != 'undefined') {
    // Prefer to use print/printErr where they exist, as they usually work better.
    if (typeof console == 'undefined') console = /** @type{!Console} */({});
    console.log = /** @type{!function(this:Console, ...*): undefined} */ (print);
    console.warn = console.error = /** @type{!function(this:Console, ...*): undefined} */ (typeof printErr != 'undefined' ? printErr : print);
  }

} else

// Note that this includes Node.js workers when relevant (pthreads is enabled).
// Node.js workers are detected as a combination of ENVIRONMENT_IS_WORKER and
// ENVIRONMENT_IS_NODE.
if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
  if (ENVIRONMENT_IS_WORKER) { // Check worker, not web, since window could be polyfilled
    scriptDirectory = self.location.href;
  } else if (typeof document != 'undefined' && document.currentScript) { // web
    scriptDirectory = document.currentScript.src;
  }
  // When MODULARIZE, this JS may be executed later, after document.currentScript
  // is gone, so we saved it, and we use it here instead of any other info.
  if (_scriptDir) {
    scriptDirectory = _scriptDir;
  }
  // blob urls look like blob:http://site.com/etc/etc and we cannot infer anything from them.
  // otherwise, slice off the final part of the url to find the script directory.
  // if scriptDirectory does not contain a slash, lastIndexOf will return -1,
  // and scriptDirectory will correctly be replaced with an empty string.
  // If scriptDirectory contains a query (starting with ?) or a fragment (starting with #),
  // they are removed because they could contain a slash.
  if (scriptDirectory.indexOf('blob:') !== 0) {
    scriptDirectory = scriptDirectory.substr(0, scriptDirectory.replace(/[?#].*/, "").lastIndexOf('/')+1);
  } else {
    scriptDirectory = '';
  }

  if (!(typeof window == 'object' || typeof importScripts == 'function')) throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)');

  // Differentiate the Web Worker from the Node Worker case, as reading must
  // be done differently.
  {
// include: web_or_worker_shell_read.js


  read_ = (url) => {
      var xhr = new XMLHttpRequest();
      xhr.open('GET', url, false);
      xhr.send(null);
      return xhr.responseText;
  }

  if (ENVIRONMENT_IS_WORKER) {
    readBinary = (url) => {
        var xhr = new XMLHttpRequest();
        xhr.open('GET', url, false);
        xhr.responseType = 'arraybuffer';
        xhr.send(null);
        return new Uint8Array(/** @type{!ArrayBuffer} */(xhr.response));
    };
  }

  readAsync = (url, onload, onerror) => {
    var xhr = new XMLHttpRequest();
    xhr.open('GET', url, true);
    xhr.responseType = 'arraybuffer';
    xhr.onload = () => {
      if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0
        onload(xhr.response);
        return;
      }
      onerror();
    };
    xhr.onerror = onerror;
    xhr.send(null);
  }

// end include: web_or_worker_shell_read.js
  }

  setWindowTitle = (title) => document.title = title;
} else
{
  throw new Error('environment detection error');
}

var out = Module['print'] || console.log.bind(console);
var err = Module['printErr'] || console.warn.bind(console);

// Merge back in the overrides
Object.assign(Module, moduleOverrides);
// Free the object hierarchy contained in the overrides, this lets the GC
// reclaim data used e.g. in memoryInitializerRequest, which is a large typed array.
moduleOverrides = null;
checkIncomingModuleAPI();

// Emit code to handle expected values on the Module object. This applies Module.x
// to the proper local x. This has two benefits: first, we only emit it if it is
// expected to arrive, and second, by using a local everywhere else that can be
// minified.

if (Module['arguments']) arguments_ = Module['arguments'];legacyModuleProp('arguments', 'arguments_');

if (Module['thisProgram']) thisProgram = Module['thisProgram'];legacyModuleProp('thisProgram', 'thisProgram');

if (Module['quit']) quit_ = Module['quit'];legacyModuleProp('quit', 'quit_');

// perform assertions in shell.js after we set up out() and err(), as otherwise if an assertion fails it cannot print the message
// Assertions on removed incoming Module JS APIs.
assert(typeof Module['memoryInitializerPrefixURL'] == 'undefined', 'Module.memoryInitializerPrefixURL option was removed, use Module.locateFile instead');
assert(typeof Module['pthreadMainPrefixURL'] == 'undefined', 'Module.pthreadMainPrefixURL option was removed, use Module.locateFile instead');
assert(typeof Module['cdInitializerPrefixURL'] == 'undefined', 'Module.cdInitializerPrefixURL option was removed, use Module.locateFile instead');
assert(typeof Module['filePackagePrefixURL'] == 'undefined', 'Module.filePackagePrefixURL option was removed, use Module.locateFile instead');
assert(typeof Module['read'] == 'undefined', 'Module.read option was removed (modify read_ in JS)');
assert(typeof Module['readAsync'] == 'undefined', 'Module.readAsync option was removed (modify readAsync in JS)');
assert(typeof Module['readBinary'] == 'undefined', 'Module.readBinary option was removed (modify readBinary in JS)');
assert(typeof Module['setWindowTitle'] == 'undefined', 'Module.setWindowTitle option was removed (modify setWindowTitle in JS)');
assert(typeof Module['TOTAL_MEMORY'] == 'undefined', 'Module.TOTAL_MEMORY has been renamed Module.INITIAL_MEMORY');
legacyModuleProp('read', 'read_');
legacyModuleProp('readAsync', 'readAsync');
legacyModuleProp('readBinary', 'readBinary');
legacyModuleProp('setWindowTitle', 'setWindowTitle');

var PROXYFS = 'PROXYFS is no longer included by default; build with -lproxyfs.js';
var WORKERFS = 'WORKERFS is no longer included by default; build with -lworkerfs.js';
var NODEFS = 'NODEFS is no longer included by default; build with -lnodefs.js';


assert(!ENVIRONMENT_IS_SHELL, "shell environment detected but not enabled at build time.  Add 'shell' to `-s ENVIRONMENT` to enable.");




var STACK_ALIGN = 16;
var POINTER_SIZE = 4;

function getNativeTypeSize(type) {
  switch (type) {
    case 'i1': case 'i8': return 1;
    case 'i16': return 2;
    case 'i32': return 4;
    case 'i64': return 8;
    case 'float': return 4;
    case 'double': return 8;
    default: {
      if (type[type.length - 1] === '*') {
        return POINTER_SIZE;
      } else if (type[0] === 'i') {
        const bits = Number(type.substr(1));
        assert(bits % 8 === 0, 'getNativeTypeSize invalid bits ' + bits + ', type ' + type);
        return bits / 8;
      } else {
        return 0;
      }
    }
  }
}

function warnOnce(text) {
  if (!warnOnce.shown) warnOnce.shown = {};
  if (!warnOnce.shown[text]) {
    warnOnce.shown[text] = 1;
    err(text);
  }
}

// include: runtime_functions.js


// Wraps a JS function as a wasm function with a given signature.
function convertJsFunctionToWasm(func, sig) {

  // If the type reflection proposal is available, use the new
  // "WebAssembly.Function" constructor.
  // Otherwise, construct a minimal wasm module importing the JS function and
  // re-exporting it.
  if (typeof WebAssembly.Function == "function") {
    var typeNames = {
      'i': 'i32',
      'j': 'i64',
      'f': 'f32',
      'd': 'f64'
    };
    var type = {
      parameters: [],
      results: sig[0] == 'v' ? [] : [typeNames[sig[0]]]
    };
    for (var i = 1; i < sig.length; ++i) {
      type.parameters.push(typeNames[sig[i]]);
    }
    return new WebAssembly.Function(type, func);
  }

  // The module is static, with the exception of the type section, which is
  // generated based on the signature passed in.
  var typeSection = [
    0x01, // id: section,
    0x00, // length: 0 (placeholder)
    0x01, // count: 1
    0x60, // form: func
  ];
  var sigRet = sig.slice(0, 1);
  var sigParam = sig.slice(1);
  var typeCodes = {
    'i': 0x7f, // i32
    'j': 0x7e, // i64
    'f': 0x7d, // f32
    'd': 0x7c, // f64
  };

  // Parameters, length + signatures
  typeSection.push(sigParam.length);
  for (var i = 0; i < sigParam.length; ++i) {
    typeSection.push(typeCodes[sigParam[i]]);
  }

  // Return values, length + signatures
  // With no multi-return in MVP, either 0 (void) or 1 (anything else)
  if (sigRet == 'v') {
    typeSection.push(0x00);
  } else {
    typeSection = typeSection.concat([0x01, typeCodes[sigRet]]);
  }

  // Write the overall length of the type section back into the section header
  // (excepting the 2 bytes for the section id and length)
  typeSection[1] = typeSection.length - 2;

  // Rest of the module is static
  var bytes = new Uint8Array([
    0x00, 0x61, 0x73, 0x6d, // magic ("\0asm")
    0x01, 0x00, 0x00, 0x00, // version: 1
  ].concat(typeSection, [
    0x02, 0x07, // import section
      // (import "e" "f" (func 0 (type 0)))
      0x01, 0x01, 0x65, 0x01, 0x66, 0x00, 0x00,
    0x07, 0x05, // export section
      // (export "f" (func 0 (type 0)))
      0x01, 0x01, 0x66, 0x00, 0x00,
  ]));

   // We can compile this wasm module synchronously because it is very small.
  // This accepts an import (at "e.f"), that it reroutes to an export (at "f")
  var module = new WebAssembly.Module(bytes);
  var instance = new WebAssembly.Instance(module, {
    'e': {
      'f': func
    }
  });
  var wrappedFunc = instance.exports['f'];
  return wrappedFunc;
}

var freeTableIndexes = [];

// Weak map of functions in the table to their indexes, created on first use.
var functionsInTableMap;

function getEmptyTableSlot() {
  // Reuse a free index if there is one, otherwise grow.
  if (freeTableIndexes.length) {
    return freeTableIndexes.pop();
  }
  // Grow the table
  try {
    wasmTable.grow(1);
  } catch (err) {
    if (!(err instanceof RangeError)) {
      throw err;
    }
    throw 'Unable to grow wasm table. Set ALLOW_TABLE_GROWTH.';
  }
  return wasmTable.length - 1;
}

function updateTableMap(offset, count) {
  for (var i = offset; i < offset + count; i++) {
    var item = getWasmTableEntry(i);
    // Ignore null values.
    if (item) {
      functionsInTableMap.set(item, i);
    }
  }
}

/**
 * Add a function to the table.
 * 'sig' parameter is required if the function being added is a JS function.
 * @param {string=} sig
 */
function addFunction(func, sig) {
  assert(typeof func != 'undefined');

  // Check if the function is already in the table, to ensure each function
  // gets a unique index. First, create the map if this is the first use.
  if (!functionsInTableMap) {
    functionsInTableMap = new WeakMap();
    updateTableMap(0, wasmTable.length);
  }
  if (functionsInTableMap.has(func)) {
    return functionsInTableMap.get(func);
  }

  // It's not in the table, add it now.

  var ret = getEmptyTableSlot();

  // Set the new value.
  try {
    // Attempting to call this with JS function will cause of table.set() to fail
    setWasmTableEntry(ret, func);
  } catch (err) {
    if (!(err instanceof TypeError)) {
      throw err;
    }
    assert(typeof sig != 'undefined', 'Missing signature argument to addFunction: ' + func);
    var wrapped = convertJsFunctionToWasm(func, sig);
    setWasmTableEntry(ret, wrapped);
  }

  functionsInTableMap.set(func, ret);

  return ret;
}

function removeFunction(index) {
  functionsInTableMap.delete(getWasmTableEntry(index));
  freeTableIndexes.push(index);
}

// end include: runtime_functions.js
// include: runtime_debug.js


function legacyModuleProp(prop, newName) {
  if (!Object.getOwnPropertyDescriptor(Module, prop)) {
    Object.defineProperty(Module, prop, {
      configurable: true,
      get: function() {
        abort('Module.' + prop + ' has been replaced with plain ' + newName + ' (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)');
      }
    });
  }
}

function ignoredModuleProp(prop) {
  if (Object.getOwnPropertyDescriptor(Module, prop)) {
    abort('`Module.' + prop + '` was supplied but `' + prop + '` not included in INCOMING_MODULE_JS_API');
  }
}

function unexportedMessage(sym, isFSSybol) {
  var msg = "'" + sym + "' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)";
  if (isFSSybol) {
    msg += '. Alternatively, forcing filesystem support (-s FORCE_FILESYSTEM=1) can export this for you';
  }
  return msg;
}

function unexportedRuntimeSymbol(sym, isFSSybol) {
  if (!Object.getOwnPropertyDescriptor(Module, sym)) {
    Object.defineProperty(Module, sym, {
      configurable: true,
      get: function() {
        abort(unexportedMessage(sym, isFSSybol));
      }
    });
  }
}

function unexportedRuntimeFunction(sym, isFSSybol) {
  if (!Object.getOwnPropertyDescriptor(Module, sym)) {
    Module[sym] = () => abort(unexportedMessage(sym, isFSSybol));
  }
}

// end include: runtime_debug.js
var tempRet0 = 0;
var setTempRet0 = (value) => { tempRet0 = value; };
var getTempRet0 = () => tempRet0;



// === Preamble library stuff ===

// Documentation for the public APIs defined in this file must be updated in:
//    site/source/docs/api_reference/preamble.js.rst
// A prebuilt local version of the documentation is available at:
//    site/build/text/docs/api_reference/preamble.js.txt
// You can also build docs locally as HTML or other formats in site/
// An online HTML version (which may be of a different version of Emscripten)
//    is up at http://kripken.github.io/emscripten-site/docs/api_reference/preamble.js.html

var wasmBinary;
if (Module['wasmBinary']) wasmBinary = Module['wasmBinary'];legacyModuleProp('wasmBinary', 'wasmBinary');
var noExitRuntime = Module['noExitRuntime'] || true;legacyModuleProp('noExitRuntime', 'noExitRuntime');

if (typeof WebAssembly != 'object') {
  abort('no native wasm support detected');
}

// include: runtime_safe_heap.js


// In MINIMAL_RUNTIME, setValue() and getValue() are only available when building with safe heap enabled, for heap safety checking.
// In traditional runtime, setValue() and getValue() are always available (although their use is highly discouraged due to perf penalties)

/** @param {number} ptr
    @param {number} value
    @param {string} type
    @param {number|boolean=} noSafe */
function setValue(ptr, value, type = 'i8', noSafe) {
  if (type.charAt(type.length-1) === '*') type = 'i32';
    switch (type) {
      case 'i1': HEAP8[((ptr)>>0)] = value; break;
      case 'i8': HEAP8[((ptr)>>0)] = value; break;
      case 'i16': HEAP16[((ptr)>>1)] = value; break;
      case 'i32': HEAP32[((ptr)>>2)] = value; break;
      case 'i64': (tempI64 = [value>>>0,(tempDouble=value,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math.min((+(Math.floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[((ptr)>>2)] = tempI64[0],HEAP32[(((ptr)+(4))>>2)] = tempI64[1]); break;
      case 'float': HEAPF32[((ptr)>>2)] = value; break;
      case 'double': HEAPF64[((ptr)>>3)] = value; break;
      default: abort('invalid type for setValue: ' + type);
    }
}

/** @param {number} ptr
    @param {string} type
    @param {number|boolean=} noSafe */
function getValue(ptr, type = 'i8', noSafe) {
  if (type.charAt(type.length-1) === '*') type = 'i32';
    switch (type) {
      case 'i1': return HEAP8[((ptr)>>0)];
      case 'i8': return HEAP8[((ptr)>>0)];
      case 'i16': return HEAP16[((ptr)>>1)];
      case 'i32': return HEAP32[((ptr)>>2)];
      case 'i64': return HEAP32[((ptr)>>2)];
      case 'float': return HEAPF32[((ptr)>>2)];
      case 'double': return Number(HEAPF64[((ptr)>>3)]);
      default: abort('invalid type for getValue: ' + type);
    }
  return null;
}

// end include: runtime_safe_heap.js
// Wasm globals

var wasmMemory;

//========================================
// Runtime essentials
//========================================

// whether we are quitting the application. no code should run after this.
// set in exit() and abort()
var ABORT = false;

// set by exit() and abort().  Passed to 'onExit' handler.
// NOTE: This is also used as the process return code code in shell environments
// but only when noExitRuntime is false.
var EXITSTATUS;

/** @type {function(*, string=)} */
function assert(condition, text) {
  if (!condition) {
    abort('Assertion failed' + (text ? ': ' + text : ''));
  }
}

// Returns the C function with a specified identifier (for C++, you need to do manual name mangling)
function getCFunc(ident) {
  var func = Module['_' + ident]; // closure exported function
  assert(func, 'Cannot call unknown function ' + ident + ', make sure it is exported');
  return func;
}

// C calling interface.
/** @param {string|null=} returnType
    @param {Array=} argTypes
    @param {Arguments|Array=} args
    @param {Object=} opts */
function ccall(ident, returnType, argTypes, args, opts) {
  // For fast lookup of conversion functions
  var toC = {
    'string': function(str) {
      var ret = 0;
      if (str !== null && str !== undefined && str !== 0) { // null string
        // at most 4 bytes per UTF-8 code point, +1 for the trailing '\0'
        var len = (str.length << 2) + 1;
        ret = stackAlloc(len);
        stringToUTF8(str, ret, len);
      }
      return ret;
    },
    'array': function(arr) {
      var ret = stackAlloc(arr.length);
      writeArrayToMemory(arr, ret);
      return ret;
    }
  };

  function convertReturnValue(ret) {
    if (returnType === 'string') return UTF8ToString(ret);
    if (returnType === 'boolean') return Boolean(ret);
    return ret;
  }

  var func = getCFunc(ident);
  var cArgs = [];
  var stack = 0;
  assert(returnType !== 'array', 'Return type should not be "array".');
  if (args) {
    for (var i = 0; i < args.length; i++) {
      var converter = toC[argTypes[i]];
      if (converter) {
        if (stack === 0) stack = stackSave();
        cArgs[i] = converter(args[i]);
      } else {
        cArgs[i] = args[i];
      }
    }
  }
  var ret = func.apply(null, cArgs);
  function onDone(ret) {
    if (stack !== 0) stackRestore(stack);
    return convertReturnValue(ret);
  }

  ret = onDone(ret);
  return ret;
}

/** @param {string=} returnType
    @param {Array=} argTypes
    @param {Object=} opts */
function cwrap(ident, returnType, argTypes, opts) {
  return function() {
    return ccall(ident, returnType, argTypes, arguments, opts);
  }
}

// We used to include malloc/free by default in the past. Show a helpful error in
// builds with assertions.

// include: runtime_legacy.js


var ALLOC_NORMAL = 0; // Tries to use _malloc()
var ALLOC_STACK = 1; // Lives for the duration of the current function call

/**
 * allocate(): This function is no longer used by emscripten but is kept around to avoid
 *             breaking external users.
 *             You should normally not use allocate(), and instead allocate
 *             memory using _malloc()/stackAlloc(), initialize it with
 *             setValue(), and so forth.
 * @param {(Uint8Array|Array<number>)} slab: An array of data.
 * @param {number=} allocator : How to allocate memory, see ALLOC_*
 */
function allocate(slab, allocator) {
  var ret;
  assert(typeof allocator == 'number', 'allocate no longer takes a type argument')
  assert(typeof slab != 'number', 'allocate no longer takes a number as arg0')

  if (allocator == ALLOC_STACK) {
    ret = stackAlloc(slab.length);
  } else {
    ret = _malloc(slab.length);
  }

  if (!slab.subarray && !slab.slice) {
    slab = new Uint8Array(slab);
  }
  HEAPU8.set(slab, ret);
  return ret;
}

// end include: runtime_legacy.js
// include: runtime_strings.js


// runtime_strings.js: Strings related runtime functions that are part of both MINIMAL_RUNTIME and regular runtime.

var UTF8Decoder = typeof TextDecoder != 'undefined' ? new TextDecoder('utf8') : undefined;

// Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the given array that contains uint8 values, returns
// a copy of that string as a Javascript String object.
/**
 * heapOrArray is either a regular array, or a JavaScript typed array view.
 * @param {number} idx
 * @param {number=} maxBytesToRead
 * @return {string}
 */
function UTF8ArrayToString(heapOrArray, idx, maxBytesToRead) {
  var endIdx = idx + maxBytesToRead;
  var endPtr = idx;
  // TextDecoder needs to know the byte length in advance, it doesn't stop on null terminator by itself.
  // Also, use the length info to avoid running tiny strings through TextDecoder, since .subarray() allocates garbage.
  // (As a tiny code save trick, compare endPtr against endIdx using a negation, so that undefined means Infinity)
  while (heapOrArray[endPtr] && !(endPtr >= endIdx)) ++endPtr;

  if (endPtr - idx > 16 && heapOrArray.buffer && UTF8Decoder) {
    return UTF8Decoder.decode(heapOrArray.subarray(idx, endPtr));
  } else {
    var str = '';
    // If building with TextDecoder, we have already computed the string length above, so test loop end condition against that
    while (idx < endPtr) {
      // For UTF8 byte structure, see:
      // http://en.wikipedia.org/wiki/UTF-8#Description
      // https://www.ietf.org/rfc/rfc2279.txt
      // https://tools.ietf.org/html/rfc3629
      var u0 = heapOrArray[idx++];
      if (!(u0 & 0x80)) { str += String.fromCharCode(u0); continue; }
      var u1 = heapOrArray[idx++] & 63;
      if ((u0 & 0xE0) == 0xC0) { str += String.fromCharCode(((u0 & 31) << 6) | u1); continue; }
      var u2 = heapOrArray[idx++] & 63;
      if ((u0 & 0xF0) == 0xE0) {
        u0 = ((u0 & 15) << 12) | (u1 << 6) | u2;
      } else {
        if ((u0 & 0xF8) != 0xF0) warnOnce('Invalid UTF-8 leading byte 0x' + u0.toString(16) + ' encountered when deserializing a UTF-8 string in wasm memory to a JS string!');
        u0 = ((u0 & 7) << 18) | (u1 << 12) | (u2 << 6) | (heapOrArray[idx++] & 63);
      }

      if (u0 < 0x10000) {
        str += String.fromCharCode(u0);
      } else {
        var ch = u0 - 0x10000;
        str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF));
      }
    }
  }
  return str;
}

// Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the emscripten HEAP, returns a
// copy of that string as a Javascript String object.
// maxBytesToRead: an optional length that specifies the maximum number of bytes to read. You can omit
//                 this parameter to scan the string until the first \0 byte. If maxBytesToRead is
//                 passed, and the string at [ptr, ptr+maxBytesToReadr[ contains a null byte in the
//                 middle, then the string will cut short at that byte index (i.e. maxBytesToRead will
//                 not produce a string of exact length [ptr, ptr+maxBytesToRead[)
//                 N.B. mixing frequent uses of UTF8ToString() with and without maxBytesToRead may
//                 throw JS JIT optimizations off, so it is worth to consider consistently using one
//                 style or the other.
/**
 * @param {number} ptr
 * @param {number=} maxBytesToRead
 * @return {string}
 */
function UTF8ToString(ptr, maxBytesToRead) {
  ;
  return ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead) : '';
}

// Copies the given Javascript String object 'str' to the given byte array at address 'outIdx',
// encoded in UTF8 form and null-terminated. The copy will require at most str.length*4+1 bytes of space in the HEAP.
// Use the function lengthBytesUTF8 to compute the exact number of bytes (excluding null terminator) that this function will write.
// Parameters:
//   str: the Javascript string to copy.
//   heap: the array to copy to. Each index in this array is assumed to be one 8-byte element.
//   outIdx: The starting offset in the array to begin the copying.
//   maxBytesToWrite: The maximum number of bytes this function can write to the array.
//                    This count should include the null terminator,
//                    i.e. if maxBytesToWrite=1, only the null terminator will be written and nothing else.
//                    maxBytesToWrite=0 does not write any bytes to the output, not even the null terminator.
// Returns the number of bytes written, EXCLUDING the null terminator.

function stringToUTF8Array(str, heap, outIdx, maxBytesToWrite) {
  if (!(maxBytesToWrite > 0)) // Parameter maxBytesToWrite is not optional. Negative values, 0, null, undefined and false each don't write out any bytes.
    return 0;

  var startIdx = outIdx;
  var endIdx = outIdx + maxBytesToWrite - 1; // -1 for string null terminator.
  for (var i = 0; i < str.length; ++i) {
    // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! So decode UTF16->UTF32->UTF8.
    // See http://unicode.org/faq/utf_bom.html#utf16-3
    // For UTF8 byte structure, see http://en.wikipedia.org/wiki/UTF-8#Description and https://www.ietf.org/rfc/rfc2279.txt and https://tools.ietf.org/html/rfc3629
    var u = str.charCodeAt(i); // possibly a lead surrogate
    if (u >= 0xD800 && u <= 0xDFFF) {
      var u1 = str.charCodeAt(++i);
      u = 0x10000 + ((u & 0x3FF) << 10) | (u1 & 0x3FF);
    }
    if (u <= 0x7F) {
      if (outIdx >= endIdx) break;
      heap[outIdx++] = u;
    } else if (u <= 0x7FF) {
      if (outIdx + 1 >= endIdx) break;
      heap[outIdx++] = 0xC0 | (u >> 6);
      heap[outIdx++] = 0x80 | (u & 63);
    } else if (u <= 0xFFFF) {
      if (outIdx + 2 >= endIdx) break;
      heap[outIdx++] = 0xE0 | (u >> 12);
      heap[outIdx++] = 0x80 | ((u >> 6) & 63);
      heap[outIdx++] = 0x80 | (u & 63);
    } else {
      if (outIdx + 3 >= endIdx) break;
      if (u > 0x10FFFF) warnOnce('Invalid Unicode code point 0x' + u.toString(16) + ' encountered when serializing a JS string to a UTF-8 string in wasm memory! (Valid unicode code points should be in range 0-0x10FFFF).');
      heap[outIdx++] = 0xF0 | (u >> 18);
      heap[outIdx++] = 0x80 | ((u >> 12) & 63);
      heap[outIdx++] = 0x80 | ((u >> 6) & 63);
      heap[outIdx++] = 0x80 | (u & 63);
    }
  }
  // Null-terminate the pointer to the buffer.
  heap[outIdx] = 0;
  return outIdx - startIdx;
}

// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in UTF8 form. The copy will require at most str.length*4+1 bytes of space in the HEAP.
// Use the function lengthBytesUTF8 to compute the exact number of bytes (excluding null terminator) that this function will write.
// Returns the number of bytes written, EXCLUDING the null terminator.

function stringToUTF8(str, outPtr, maxBytesToWrite) {
  assert(typeof maxBytesToWrite == 'number', 'stringToUTF8(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!');
  return stringToUTF8Array(str, HEAPU8,outPtr, maxBytesToWrite);
}

// Returns the number of bytes the given Javascript string takes if encoded as a UTF8 byte array, EXCLUDING the null terminator byte.
function lengthBytesUTF8(str) {
  var len = 0;
  for (var i = 0; i < str.length; ++i) {
    // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! So decode UTF16->UTF32->UTF8.
    // See http://unicode.org/faq/utf_bom.html#utf16-3
    var u = str.charCodeAt(i); // possibly a lead surrogate
    if (u >= 0xD800 && u <= 0xDFFF) u = 0x10000 + ((u & 0x3FF) << 10) | (str.charCodeAt(++i) & 0x3FF);
    if (u <= 0x7F) ++len;
    else if (u <= 0x7FF) len += 2;
    else if (u <= 0xFFFF) len += 3;
    else len += 4;
  }
  return len;
}

// end include: runtime_strings.js
// include: runtime_strings_extra.js


// runtime_strings_extra.js: Strings related runtime functions that are available only in regular runtime.

// Given a pointer 'ptr' to a null-terminated ASCII-encoded string in the emscripten HEAP, returns
// a copy of that string as a Javascript String object.

function AsciiToString(ptr) {
  var str = '';
  while (1) {
    var ch = HEAPU8[((ptr++)>>0)];
    if (!ch) return str;
    str += String.fromCharCode(ch);
  }
}

// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in ASCII form. The copy will require at most str.length+1 bytes of space in the HEAP.

function stringToAscii(str, outPtr) {
  return writeAsciiToMemory(str, outPtr, false);
}

// Given a pointer 'ptr' to a null-terminated UTF16LE-encoded string in the emscripten HEAP, returns
// a copy of that string as a Javascript String object.

var UTF16Decoder = typeof TextDecoder != 'undefined' ? new TextDecoder('utf-16le') : undefined;

function UTF16ToString(ptr, maxBytesToRead) {
  assert(ptr % 2 == 0, 'Pointer passed to UTF16ToString must be aligned to two bytes!');
  var endPtr = ptr;
  // TextDecoder needs to know the byte length in advance, it doesn't stop on null terminator by itself.
  // Also, use the length info to avoid running tiny strings through TextDecoder, since .subarray() allocates garbage.
  var idx = endPtr >> 1;
  var maxIdx = idx + maxBytesToRead / 2;
  // If maxBytesToRead is not passed explicitly, it will be undefined, and this
  // will always evaluate to true. This saves on code size.
  while (!(idx >= maxIdx) && HEAPU16[idx]) ++idx;
  endPtr = idx << 1;

  if (endPtr - ptr > 32 && UTF16Decoder) {
    return UTF16Decoder.decode(HEAPU8.subarray(ptr, endPtr));
  } else {
    var str = '';

    // If maxBytesToRead is not passed explicitly, it will be undefined, and the for-loop's condition
    // will always evaluate to true. The loop is then terminated on the first null char.
    for (var i = 0; !(i >= maxBytesToRead / 2); ++i) {
      var codeUnit = HEAP16[(((ptr)+(i*2))>>1)];
      if (codeUnit == 0) break;
      // fromCharCode constructs a character from a UTF-16 code unit, so we can pass the UTF16 string right through.
      str += String.fromCharCode(codeUnit);
    }

    return str;
  }
}

// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in UTF16 form. The copy will require at most str.length*4+2 bytes of space in the HEAP.
// Use the function lengthBytesUTF16() to compute the exact number of bytes (excluding null terminator) that this function will write.
// Parameters:
//   str: the Javascript string to copy.
//   outPtr: Byte address in Emscripten HEAP where to write the string to.
//   maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null
//                    terminator, i.e. if maxBytesToWrite=2, only the null terminator will be written and nothing else.
//                    maxBytesToWrite<2 does not write any bytes to the output, not even the null terminator.
// Returns the number of bytes written, EXCLUDING the null terminator.

function stringToUTF16(str, outPtr, maxBytesToWrite) {
  assert(outPtr % 2 == 0, 'Pointer passed to stringToUTF16 must be aligned to two bytes!');
  assert(typeof maxBytesToWrite == 'number', 'stringToUTF16(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!');
  // Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed.
  if (maxBytesToWrite === undefined) {
    maxBytesToWrite = 0x7FFFFFFF;
  }
  if (maxBytesToWrite < 2) return 0;
  maxBytesToWrite -= 2; // Null terminator.
  var startPtr = outPtr;
  var numCharsToWrite = (maxBytesToWrite < str.length*2) ? (maxBytesToWrite / 2) : str.length;
  for (var i = 0; i < numCharsToWrite; ++i) {
    // charCodeAt returns a UTF-16 encoded code unit, so it can be directly written to the HEAP.
    var codeUnit = str.charCodeAt(i); // possibly a lead surrogate
    HEAP16[((outPtr)>>1)] = codeUnit;
    outPtr += 2;
  }
  // Null-terminate the pointer to the HEAP.
  HEAP16[((outPtr)>>1)] = 0;
  return outPtr - startPtr;
}

// Returns the number of bytes the given Javascript string takes if encoded as a UTF16 byte array, EXCLUDING the null terminator byte.

function lengthBytesUTF16(str) {
  return str.length*2;
}

function UTF32ToString(ptr, maxBytesToRead) {
  assert(ptr % 4 == 0, 'Pointer passed to UTF32ToString must be aligned to four bytes!');
  var i = 0;

  var str = '';
  // If maxBytesToRead is not passed explicitly, it will be undefined, and this
  // will always evaluate to true. This saves on code size.
  while (!(i >= maxBytesToRead / 4)) {
    var utf32 = HEAP32[(((ptr)+(i*4))>>2)];
    if (utf32 == 0) break;
    ++i;
    // Gotcha: fromCharCode constructs a character from a UTF-16 encoded code (pair), not from a Unicode code point! So encode the code point to UTF-16 for constructing.
    // See http://unicode.org/faq/utf_bom.html#utf16-3
    if (utf32 >= 0x10000) {
      var ch = utf32 - 0x10000;
      str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF));
    } else {
      str += String.fromCharCode(utf32);
    }
  }
  return str;
}

// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in UTF32 form. The copy will require at most str.length*4+4 bytes of space in the HEAP.
// Use the function lengthBytesUTF32() to compute the exact number of bytes (excluding null terminator) that this function will write.
// Parameters:
//   str: the Javascript string to copy.
//   outPtr: Byte address in Emscripten HEAP where to write the string to.
//   maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null
//                    terminator, i.e. if maxBytesToWrite=4, only the null terminator will be written and nothing else.
//                    maxBytesToWrite<4 does not write any bytes to the output, not even the null terminator.
// Returns the number of bytes written, EXCLUDING the null terminator.

function stringToUTF32(str, outPtr, maxBytesToWrite) {
  assert(outPtr % 4 == 0, 'Pointer passed to stringToUTF32 must be aligned to four bytes!');
  assert(typeof maxBytesToWrite == 'number', 'stringToUTF32(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!');
  // Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed.
  if (maxBytesToWrite === undefined) {
    maxBytesToWrite = 0x7FFFFFFF;
  }
  if (maxBytesToWrite < 4) return 0;
  var startPtr = outPtr;
  var endPtr = startPtr + maxBytesToWrite - 4;
  for (var i = 0; i < str.length; ++i) {
    // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap.
    // See http://unicode.org/faq/utf_bom.html#utf16-3
    var codeUnit = str.charCodeAt(i); // possibly a lead surrogate
    if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) {
      var trailSurrogate = str.charCodeAt(++i);
      codeUnit = 0x10000 + ((codeUnit & 0x3FF) << 10) | (trailSurrogate & 0x3FF);
    }
    HEAP32[((outPtr)>>2)] = codeUnit;
    outPtr += 4;
    if (outPtr + 4 > endPtr) break;
  }
  // Null-terminate the pointer to the HEAP.
  HEAP32[((outPtr)>>2)] = 0;
  return outPtr - startPtr;
}

// Returns the number of bytes the given Javascript string takes if encoded as a UTF16 byte array, EXCLUDING the null terminator byte.

function lengthBytesUTF32(str) {
  var len = 0;
  for (var i = 0; i < str.length; ++i) {
    // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap.
    // See http://unicode.org/faq/utf_bom.html#utf16-3
    var codeUnit = str.charCodeAt(i);
    if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) ++i; // possibly a lead surrogate, so skip over the tail surrogate.
    len += 4;
  }

  return len;
}

// Allocate heap space for a JS string, and write it there.
// It is the responsibility of the caller to free() that memory.
function allocateUTF8(str) {
  var size = lengthBytesUTF8(str) + 1;
  var ret = _malloc(size);
  if (ret) stringToUTF8Array(str, HEAP8, ret, size);
  return ret;
}

// Allocate stack space for a JS string, and write it there.
function allocateUTF8OnStack(str) {
  var size = lengthBytesUTF8(str) + 1;
  var ret = stackAlloc(size);
  stringToUTF8Array(str, HEAP8, ret, size);
  return ret;
}

// Deprecated: This function should not be called because it is unsafe and does not provide
// a maximum length limit of how many bytes it is allowed to write. Prefer calling the
// function stringToUTF8Array() instead, which takes in a maximum length that can be used
// to be secure from out of bounds writes.
/** @deprecated
    @param {boolean=} dontAddNull */
function writeStringToMemory(string, buffer, dontAddNull) {
  warnOnce('writeStringToMemory is deprecated and should not be called! Use stringToUTF8() instead!');

  var /** @type {number} */ lastChar, /** @type {number} */ end;
  if (dontAddNull) {
    // stringToUTF8Array always appends null. If we don't want to do that, remember the
    // character that existed at the location where the null will be placed, and restore
    // that after the write (below).
    end = buffer + lengthBytesUTF8(string);
    lastChar = HEAP8[end];
  }
  stringToUTF8(string, buffer, Infinity);
  if (dontAddNull) HEAP8[end] = lastChar; // Restore the value under the null character.
}

function writeArrayToMemory(array, buffer) {
  assert(array.length >= 0, 'writeArrayToMemory array must have a length (should be an array or typed array)')
  HEAP8.set(array, buffer);
}

/** @param {boolean=} dontAddNull */
function writeAsciiToMemory(str, buffer, dontAddNull) {
  for (var i = 0; i < str.length; ++i) {
    assert(str.charCodeAt(i) === (str.charCodeAt(i) & 0xff));
    HEAP8[((buffer++)>>0)] = str.charCodeAt(i);
  }
  // Null-terminate the pointer to the HEAP.
  if (!dontAddNull) HEAP8[((buffer)>>0)] = 0;
}

// end include: runtime_strings_extra.js
// Memory management

var HEAP,
/** @type {!ArrayBuffer} */
  buffer,
/** @type {!Int8Array} */
  HEAP8,
/** @type {!Uint8Array} */
  HEAPU8,
/** @type {!Int16Array} */
  HEAP16,
/** @type {!Uint16Array} */
  HEAPU16,
/** @type {!Int32Array} */
  HEAP32,
/** @type {!Uint32Array} */
  HEAPU32,
/** @type {!Float32Array} */
  HEAPF32,
/** @type {!Float64Array} */
  HEAPF64;

function updateGlobalBufferAndViews(buf) {
  buffer = buf;
  Module['HEAP8'] = HEAP8 = new Int8Array(buf);
  Module['HEAP16'] = HEAP16 = new Int16Array(buf);
  Module['HEAP32'] = HEAP32 = new Int32Array(buf);
  Module['HEAPU8'] = HEAPU8 = new Uint8Array(buf);
  Module['HEAPU16'] = HEAPU16 = new Uint16Array(buf);
  Module['HEAPU32'] = HEAPU32 = new Uint32Array(buf);
  Module['HEAPF32'] = HEAPF32 = new Float32Array(buf);
  Module['HEAPF64'] = HEAPF64 = new Float64Array(buf);
}

var TOTAL_STACK = 5242880;
if (Module['TOTAL_STACK']) assert(TOTAL_STACK === Module['TOTAL_STACK'], 'the stack size can no longer be determined at runtime')

var INITIAL_MEMORY = Module['INITIAL_MEMORY'] || 33554432;legacyModuleProp('INITIAL_MEMORY', 'INITIAL_MEMORY');

assert(INITIAL_MEMORY >= TOTAL_STACK, 'INITIAL_MEMORY should be larger than TOTAL_STACK, was ' + INITIAL_MEMORY + '! (TOTAL_STACK=' + TOTAL_STACK + ')');

// check for full engine support (use string 'subarray' to avoid closure compiler confusion)
assert(typeof Int32Array != 'undefined' && typeof Float64Array !== 'undefined' && Int32Array.prototype.subarray != undefined && Int32Array.prototype.set != undefined,
       'JS engine does not provide full typed array support');

// If memory is defined in wasm, the user can't provide it.
assert(!Module['wasmMemory'], 'Use of `wasmMemory` detected.  Use -s IMPORTED_MEMORY to define wasmMemory externally');
assert(INITIAL_MEMORY == 33554432, 'Detected runtime INITIAL_MEMORY setting.  Use -s IMPORTED_MEMORY to define wasmMemory dynamically');

// include: runtime_init_table.js
// In regular non-RELOCATABLE mode the table is exported
// from the wasm module and this will be assigned once
// the exports are available.
var wasmTable;

// end include: runtime_init_table.js
// include: runtime_stack_check.js


// Initializes the stack cookie. Called at the startup of main and at the startup of each thread in pthreads mode.
function writeStackCookie() {
  var max = _emscripten_stack_get_end();
  assert((max & 3) == 0);
  // The stack grow downwards towards _emscripten_stack_get_end.
  // We write cookies to the final two words in the stack and detect if they are
  // ever overwritten.
  HEAP32[((max)>>2)] = 0x2135467;
  HEAP32[(((max)+(4))>>2)] = 0x89BACDFE;
  // Also test the global address 0 for integrity.
  HEAP32[0] = 0x63736d65; /* 'emsc' */
}

function checkStackCookie() {
  if (ABORT) return;
  var max = _emscripten_stack_get_end();
  var cookie1 = HEAPU32[((max)>>2)];
  var cookie2 = HEAPU32[(((max)+(4))>>2)];
  if (cookie1 != 0x2135467 || cookie2 != 0x89BACDFE) {
    abort('Stack overflow! Stack cookie has been overwritten, expected hex dwords 0x89BACDFE and 0x2135467, but received 0x' + cookie2.toString(16) + ' 0x' + cookie1.toString(16));
  }
  // Also test the global address 0 for integrity.
  if (HEAP32[0] !== 0x63736d65 /* 'emsc' */) abort('Runtime error: The application has corrupted its heap memory area (address zero)!');
}

// end include: runtime_stack_check.js
// include: runtime_assertions.js


// Endianness check
(function() {
  var h16 = new Int16Array(1);
  var h8 = new Int8Array(h16.buffer);
  h16[0] = 0x6373;
  if (h8[0] !== 0x73 || h8[1] !== 0x63) throw 'Runtime error: expected the system to be little-endian! (Run with -s SUPPORT_BIG_ENDIAN=1 to bypass)';
})();

// end include: runtime_assertions.js
var __ATPRERUN__  = []; // functions called before the runtime is initialized
var __ATINIT__    = []; // functions called during startup
var __ATMAIN__    = []; // functions called when main() is to be run
var __ATEXIT__    = []; // functions called during shutdown
var __ATPOSTRUN__ = []; // functions called after the main() is called

var runtimeInitialized = false;

function keepRuntimeAlive() {
  return noExitRuntime;
}

function preRun() {

  if (Module['preRun']) {
    if (typeof Module['preRun'] == 'function') Module['preRun'] = [Module['preRun']];
    while (Module['preRun'].length) {
      addOnPreRun(Module['preRun'].shift());
    }
  }

  callRuntimeCallbacks(__ATPRERUN__);
}

function initRuntime() {
  checkStackCookie();
  assert(!runtimeInitialized);
  runtimeInitialized = true;

  
if (!Module["noFSInit"] && !FS.init.initialized)
  FS.init();
FS.ignorePermissions = false;

TTY.init();
SOCKFS.root = FS.mount(SOCKFS, {}, null);
  callRuntimeCallbacks(__ATINIT__);
}

function preMain() {
  checkStackCookie();
  
  callRuntimeCallbacks(__ATMAIN__);
}

function postRun() {
  checkStackCookie();

  if (Module['postRun']) {
    if (typeof Module['postRun'] == 'function') Module['postRun'] = [Module['postRun']];
    while (Module['postRun'].length) {
      addOnPostRun(Module['postRun'].shift());
    }
  }

  callRuntimeCallbacks(__ATPOSTRUN__);
}

function addOnPreRun(cb) {
  __ATPRERUN__.unshift(cb);
}

function addOnInit(cb) {
  __ATINIT__.unshift(cb);
}

function addOnPreMain(cb) {
  __ATMAIN__.unshift(cb);
}

function addOnExit(cb) {
}

function addOnPostRun(cb) {
  __ATPOSTRUN__.unshift(cb);
}

// include: runtime_math.js


// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul

// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/fround

// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/clz32

// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/trunc

assert(Math.imul, 'This browser does not support Math.imul(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');
assert(Math.fround, 'This browser does not support Math.fround(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');
assert(Math.clz32, 'This browser does not support Math.clz32(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');
assert(Math.trunc, 'This browser does not support Math.trunc(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');

// end include: runtime_math.js
// A counter of dependencies for calling run(). If we need to
// do asynchronous work before running, increment this and
// decrement it. Incrementing must happen in a place like
// Module.preRun (used by emcc to add file preloading).
// Note that you can add dependencies in preRun, even though
// it happens right before run - run will be postponed until
// the dependencies are met.
var runDependencies = 0;
var runDependencyWatcher = null;
var dependenciesFulfilled = null; // overridden to take different actions when all run dependencies are fulfilled
var runDependencyTracking = {};

function getUniqueRunDependency(id) {
  var orig = id;
  while (1) {
    if (!runDependencyTracking[id]) return id;
    id = orig + Math.random();
  }
}

function addRunDependency(id) {
  runDependencies++;

  if (Module['monitorRunDependencies']) {
    Module['monitorRunDependencies'](runDependencies);
  }

  if (id) {
    assert(!runDependencyTracking[id]);
    runDependencyTracking[id] = 1;
    if (runDependencyWatcher === null && typeof setInterval != 'undefined') {
      // Check for missing dependencies every few seconds
      runDependencyWatcher = setInterval(function() {
        if (ABORT) {
          clearInterval(runDependencyWatcher);
          runDependencyWatcher = null;
          return;
        }
        var shown = false;
        for (var dep in runDependencyTracking) {
          if (!shown) {
            shown = true;
            err('still waiting on run dependencies:');
          }
          err('dependency: ' + dep);
        }
        if (shown) {
          err('(end of list)');
        }
      }, 10000);
    }
  } else {
    err('warning: run dependency added without ID');
  }
}

function removeRunDependency(id) {
  runDependencies--;

  if (Module['monitorRunDependencies']) {
    Module['monitorRunDependencies'](runDependencies);
  }

  if (id) {
    assert(runDependencyTracking[id]);
    delete runDependencyTracking[id];
  } else {
    err('warning: run dependency removed without ID');
  }
  if (runDependencies == 0) {
    if (runDependencyWatcher !== null) {
      clearInterval(runDependencyWatcher);
      runDependencyWatcher = null;
    }
    if (dependenciesFulfilled) {
      var callback = dependenciesFulfilled;
      dependenciesFulfilled = null;
      callback(); // can add another dependenciesFulfilled
    }
  }
}

Module["preloadedImages"] = {}; // maps url to image data
Module["preloadedAudios"] = {}; // maps url to audio data

/** @param {string|number=} what */
function abort(what) {
  {
    if (Module['onAbort']) {
      Module['onAbort'](what);
    }
  }

  what = 'Aborted(' + what + ')';
  // TODO(sbc): Should we remove printing and leave it up to whoever
  // catches the exception?
  err(what);

  ABORT = true;
  EXITSTATUS = 1;

  // Use a wasm runtime error, because a JS error might be seen as a foreign
  // exception, which means we'd run destructors on it. We need the error to
  // simply make the program stop.

  // Suppress closure compiler warning here. Closure compiler's builtin extern
  // defintion for WebAssembly.RuntimeError claims it takes no arguments even
  // though it can.
  // TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure gets fixed.

  /** @suppress {checkTypes} */
  var e = new WebAssembly.RuntimeError(what);

  readyPromiseReject(e);
  // Throw the error whether or not MODULARIZE is set because abort is used
  // in code paths apart from instantiation where an exception is expected
  // to be thrown when abort is called.
  throw e;
}

// {{MEM_INITIALIZER}}

// include: memoryprofiler.js


// end include: memoryprofiler.js
// include: URIUtils.js


// Prefix of data URIs emitted by SINGLE_FILE and related options.
var dataURIPrefix = 'data:application/octet-stream;base64,';

// Indicates whether filename is a base64 data URI.
function isDataURI(filename) {
  // Prefix of data URIs emitted by SINGLE_FILE and related options.
  return filename.startsWith(dataURIPrefix);
}

// Indicates whether filename is delivered via file protocol (as opposed to http/https)
function isFileURI(filename) {
  return filename.startsWith('file://');
}

// end include: URIUtils.js
/** @param {boolean=} fixedasm */
function createExportWrapper(name, fixedasm) {
  return function() {
    var displayName = name;
    var asm = fixedasm;
    if (!fixedasm) {
      asm = Module['asm'];
    }
    assert(runtimeInitialized, 'native function `' + displayName + '` called before runtime initialization');
    if (!asm[name]) {
      assert(asm[name], 'exported native function `' + displayName + '` not found');
    }
    return asm[name].apply(null, arguments);
  };
}

var wasmBinaryFile;
  wasmBinaryFile = 'build.wasm';
  if (!isDataURI(wasmBinaryFile)) {
    wasmBinaryFile = locateFile(wasmBinaryFile);
  }

function getBinary(file) {
  try {
    if (file == wasmBinaryFile && wasmBinary) {
      return new Uint8Array(wasmBinary);
    }
    if (readBinary) {
      return readBinary(file);
    } else {
      throw "both async and sync fetching of the wasm failed";
    }
  }
  catch (err) {
    abort(err);
  }
}

function getBinaryPromise() {
  // If we don't have the binary yet, try to to load it asynchronously.
  // Fetch has some additional restrictions over XHR, like it can't be used on a file:// url.
  // See https://github.com/github/fetch/pull/92#issuecomment-140665932
  // Cordova or Electron apps are typically loaded from a file:// url.
  // So use fetch if it is available and the url is not a file, otherwise fall back to XHR.
  if (!wasmBinary && (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER)) {
    if (typeof fetch == 'function'
      && !isFileURI(wasmBinaryFile)
    ) {
      return fetch(wasmBinaryFile, { credentials: 'same-origin' }).then(function(response) {
        if (!response['ok']) {
          throw "failed to load wasm binary file at '" + wasmBinaryFile + "'";
        }
        return response['arrayBuffer']();
      }).catch(function () {
          return getBinary(wasmBinaryFile);
      });
    }
    else {
      if (readAsync) {
        // fetch is not available or url is file => try XHR (readAsync uses XHR internally)
        return new Promise(function(resolve, reject) {
          readAsync(wasmBinaryFile, function(response) { resolve(new Uint8Array(/** @type{!ArrayBuffer} */(response))) }, reject)
        });
      }
    }
  }

  // Otherwise, getBinary should be able to get it synchronously
  return Promise.resolve().then(function() { return getBinary(wasmBinaryFile); });
}

// Create the wasm instance.
// Receives the wasm imports, returns the exports.
function createWasm() {
  // prepare imports
  var info = {
    'env': asmLibraryArg,
    'wasi_snapshot_preview1': asmLibraryArg,
  };
  // Load the wasm module and create an instance of using native support in the JS engine.
  // handle a generated wasm instance, receiving its exports and
  // performing other necessary setup
  /** @param {WebAssembly.Module=} module*/
  function receiveInstance(instance, module) {
    var exports = instance.exports;

    Module['asm'] = exports;

    wasmMemory = Module['asm']['memory'];
    assert(wasmMemory, "memory not found in wasm exports");
    // This assertion doesn't hold when emscripten is run in --post-link
    // mode.
    // TODO(sbc): Read INITIAL_MEMORY out of the wasm file in post-link mode.
    //assert(wasmMemory.buffer.byteLength === 33554432);
    updateGlobalBufferAndViews(wasmMemory.buffer);

    wasmTable = Module['asm']['__indirect_function_table'];
    assert(wasmTable, "table not found in wasm exports");

    addOnInit(Module['asm']['__wasm_call_ctors']);

    removeRunDependency('wasm-instantiate');

  }
  // we can't run yet (except in a pthread, where we have a custom sync instantiator)
  addRunDependency('wasm-instantiate');

  // Prefer streaming instantiation if available.
  // Async compilation can be confusing when an error on the page overwrites Module
  // (for example, if the order of elements is wrong, and the one defining Module is
  // later), so we save Module and check it later.
  var trueModule = Module;
  function receiveInstantiationResult(result) {
    // 'result' is a ResultObject object which has both the module and instance.
    // receiveInstance() will swap in the exports (to Module.asm) so they can be called
    assert(Module === trueModule, 'the Module object should not be replaced during async compilation - perhaps the order of HTML elements is wrong?');
    trueModule = null;
    // TODO: Due to Closure regression https://github.com/google/closure-compiler/issues/3193, the above line no longer optimizes out down to the following line.
    // When the regression is fixed, can restore the above USE_PTHREADS-enabled path.
    receiveInstance(result['instance']);
  }

  function instantiateArrayBuffer(receiver) {
    return getBinaryPromise().then(function(binary) {
      return WebAssembly.instantiate(binary, info);
    }).then(function (instance) {
      return instance;
    }).then(receiver, function(reason) {
      err('failed to asynchronously prepare wasm: ' + reason);

      // Warn on some common problems.
      if (isFileURI(wasmBinaryFile)) {
        err('warning: Loading from a file URI (' + wasmBinaryFile + ') is not supported in most browsers. See https://emscripten.org/docs/getting_started/FAQ.html#how-do-i-run-a-local-webserver-for-testing-why-does-my-program-stall-in-downloading-or-preparing');
      }
      abort(reason);
    });
  }

  function instantiateAsync() {
    if (!wasmBinary &&
        typeof WebAssembly.instantiateStreaming == 'function' &&
        !isDataURI(wasmBinaryFile) &&
        // Don't use streaming for file:// delivered objects in a webview, fetch them synchronously.
        !isFileURI(wasmBinaryFile) &&
        typeof fetch == 'function') {
      return fetch(wasmBinaryFile, { credentials: 'same-origin' }).then(function(response) {
        // Suppress closure warning here since the upstream definition for
        // instantiateStreaming only allows Promise<Repsponse> rather than
        // an actual Response.
        // TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure is fixed.
        /** @suppress {checkTypes} */
        var result = WebAssembly.instantiateStreaming(response, info);

        return result.then(
          receiveInstantiationResult,
          function(reason) {
            // We expect the most common failure cause to be a bad MIME type for the binary,
            // in which case falling back to ArrayBuffer instantiation should work.
            err('wasm streaming compile failed: ' + reason);
            err('falling back to ArrayBuffer instantiation');
            return instantiateArrayBuffer(receiveInstantiationResult);
          });
      });
    } else {
      return instantiateArrayBuffer(receiveInstantiationResult);
    }
  }

  // User shell pages can write their own Module.instantiateWasm = function(imports, successCallback) callback
  // to manually instantiate the Wasm module themselves. This allows pages to run the instantiation parallel
  // to any other async startup actions they are performing.
  // Also pthreads and wasm workers initialize the wasm instance through this path.
  if (Module['instantiateWasm']) {
    try {
      var exports = Module['instantiateWasm'](info, receiveInstance);
      return exports;
    } catch(e) {
      err('Module.instantiateWasm callback failed with error: ' + e);
      return false;
    }
  }

  // If instantiation fails, reject the module ready promise.
  instantiateAsync().catch(readyPromiseReject);
  return {}; // no exports yet; we'll fill them in later
}

// Globals used by JS i64 conversions (see makeSetValue)
var tempDouble;
var tempI64;

// === Body ===

var ASM_CONSTS = {
  1437568: function() {return Module.webglContextAttributes.premultipliedAlpha;},  
 1437629: function() {return Module.webglContextAttributes.preserveDrawingBuffer;},  
 1437693: function() {return Module.webglContextAttributes.powerPreference;},  
 1437751: function() {Module['emscripten_get_now_backup'] = performance.now;},  
 1437806: function($0) {performance.now = function() { return $0; };},  
 1437854: function($0) {performance.now = function() { return $0; };},  
 1437902: function() {performance.now = Module['emscripten_get_now_backup'];}
};






  function callRuntimeCallbacks(callbacks) {
      while (callbacks.length > 0) {
        var callback = callbacks.shift();
        if (typeof callback == 'function') {
          callback(Module); // Pass the module as the first argument.
          continue;
        }
        var func = callback.func;
        if (typeof func == 'number') {
          if (callback.arg === undefined) {
            // Run the wasm function ptr with signature 'v'. If no function
            // with such signature was exported, this call does not need
            // to be emitted (and would confuse Closure)
            (function() {  dynCall_v.call(null, func); })();
          } else {
            // If any function with signature 'vi' was exported, run
            // the callback with that signature.
            (function(a1) {  dynCall_vi.apply(null, [func, a1]); })(callback.arg);
          }
        } else {
          func(callback.arg === undefined ? null : callback.arg);
        }
      }
    }

  function withStackSave(f) {
      var stack = stackSave();
      var ret = f();
      stackRestore(stack);
      return ret;
    }
  function demangle(func) {
      // If demangle has failed before, stop demangling any further function names
      // This avoids an infinite recursion with malloc()->abort()->stackTrace()->demangle()->malloc()->...
      demangle.recursionGuard = (demangle.recursionGuard|0)+1;
      if (demangle.recursionGuard > 1) return func;
      var __cxa_demangle_func = Module['___cxa_demangle'] || Module['__cxa_demangle'];
      assert(__cxa_demangle_func);
      return withStackSave(function() {
        try {
          var s = func;
          if (s.startsWith('__Z'))
            s = s.substr(1);
          var len = lengthBytesUTF8(s)+1;
          var buf = stackAlloc(len);
          stringToUTF8(s, buf, len);
          var status = stackAlloc(4);
          var ret = __cxa_demangle_func(buf, 0, 0, status);
          if (HEAP32[((status)>>2)] === 0 && ret) {
            return UTF8ToString(ret);
          }
          // otherwise, libcxxabi failed
        } catch(e) {
        } finally {
          _free(ret);
          if (demangle.recursionGuard < 2) --demangle.recursionGuard;
        }
        // failure when using libcxxabi, don't demangle
        return func;
      });
    }

  function demangleAll(text) {
      var regex =
        /\b_Z[\w\d_]+/g;
      return text.replace(regex,
        function(x) {
          var y = demangle(x);
          return x === y ? x : (y + ' [' + x + ']');
        });
    }

  function dynCallLegacy(sig, ptr, args) {
      assert(('dynCall_' + sig) in Module, 'bad function pointer type - no table for sig \'' + sig + '\'');
      if (args && args.length) {
        // j (64-bit integer) must be passed in as two numbers [low 32, high 32].
        assert(args.length === sig.substring(1).replace(/j/g, '--').length);
      } else {
        assert(sig.length == 1);
      }
      var f = Module["dynCall_" + sig];
      return args && args.length ? f.apply(null, [ptr].concat(args)) : f.call(null, ptr);
    }
  
  var wasmTableMirror = [];
  function getWasmTableEntry(funcPtr) {
      var func = wasmTableMirror[funcPtr];
      if (!func) {
        if (funcPtr >= wasmTableMirror.length) wasmTableMirror.length = funcPtr + 1;
        wasmTableMirror[funcPtr] = func = wasmTable.get(funcPtr);
      }
      assert(wasmTable.get(funcPtr) == func, "JavaScript-side Wasm function table mirror is out of date!");
      return func;
    }
  /** @param {Object=} args */
  function dynCall(sig, ptr, args) {
      return dynCallLegacy(sig, ptr, args);
    }


  function handleException(e) {
      // Certain exception types we do not treat as errors since they are used for
      // internal control flow.
      // 1. ExitStatus, which is thrown by exit()
      // 2. "unwind", which is thrown by emscripten_unwind_to_js_event_loop() and others
      //    that wish to return to JS event loop.
      if (e instanceof ExitStatus || e == 'unwind') {
        return EXITSTATUS;
      }
      quit_(1, e);
    }

  function jsStackTrace() {
      var error = new Error();
      if (!error.stack) {
        // IE10+ special cases: It does have callstack info, but it is only populated if an Error object is thrown,
        // so try that as a special-case.
        try {
          throw new Error();
        } catch(e) {
          error = e;
        }
        if (!error.stack) {
          return '(no stack trace available)';
        }
      }
      return error.stack.toString();
    }

  function setWasmTableEntry(idx, func) {
      wasmTable.set(idx, func);
      wasmTableMirror[idx] = func;
    }

  function stackTrace() {
      var js = jsStackTrace();
      if (Module['extraStackTrace']) js += '\n' + Module['extraStackTrace']();
      return demangleAll(js);
    }

  function _GetJSMemoryInfo(totalJSptr, usedJSptr) {
      if (performance.memory) {
        HEAPF64[totalJSptr >> 3] = performance.memory.totalJSHeapSize;
        HEAPF64[usedJSptr >> 3] = performance.memory.usedJSHeapSize;
      } else {
        HEAPF64[totalJSptr >> 3] = NaN;
        HEAPF64[usedJSptr >> 3] = NaN;
      }
    }

  var JS_Accelerometer = null;
  
  var JS_Accelerometer_callback = 0;
  function _JS_Accelerometer_IsRunning() {
          // Sensor is running if there is an activated new JS_Accelerometer; or the JS_Accelerometer_callback is hooked up
          return (JS_Accelerometer && JS_Accelerometer.activated) || (JS_Accelerometer_callback != 0);
      }

  var JS_Accelerometer_multiplier = 1;
  
  var JS_Accelerometer_lastValue = {x:0,y:0,z:0};
  function JS_Accelerometer_eventHandler() {
          // Record the last value for gravity computation
          JS_Accelerometer_lastValue = {
              x: JS_Accelerometer.x * JS_Accelerometer_multiplier,
              y: JS_Accelerometer.y * JS_Accelerometer_multiplier,
              z: JS_Accelerometer.z * JS_Accelerometer_multiplier
          };
          if (JS_Accelerometer_callback != 0)
              dynCall_vfff(JS_Accelerometer_callback, JS_Accelerometer_lastValue.x, JS_Accelerometer_lastValue.y, JS_Accelerometer_lastValue.z);
      }
  
  var JS_Accelerometer_frequencyRequest = 0;
  
  var JS_Accelerometer_frequency = 0;
  
  var JS_LinearAccelerationSensor_callback = 0;
  
  var JS_GravitySensor_callback = 0;
  
  var JS_Gyroscope_callback = 0;
  
  function JS_ComputeGravity(accelerometerValue, linearAccelerationValue) {
          // On some Android devices, the linear acceleration direction is reversed compared to its accelerometer
          // So, compute both the difference and sum (difference of the negative) and return the one that's the smallest in magnitude
          var difference = {
              x: accelerometerValue.x - linearAccelerationValue.x,
              y: accelerometerValue.y - linearAccelerationValue.y,
              z: accelerometerValue.z - linearAccelerationValue.z
          };
          var differenceMagnitudeSq = difference.x*difference.x + difference.y*difference.y + difference.z*difference.z;
  
          var sum = {
              x: accelerometerValue.x + linearAccelerationValue.x,
              y: accelerometerValue.y + linearAccelerationValue.y,
              z: accelerometerValue.z + linearAccelerationValue.z
          };
          var sumMagnitudeSq = sum.x*sum.x + sum.y*sum.y + sum.z*sum.z;
  
          return (differenceMagnitudeSq <= sumMagnitudeSq) ? difference : sum;
      }
  function JS_DeviceMotion_eventHandler(event) {
          // The accelerationIncludingGravity property is the amount of acceleration recorded by the device, in meters per second squared (m/s2).
          // Its value is the sum of the acceleration of the device as induced by the user and the acceleration caused by gravity.
          // Apply the JS_Accelerometer_multiplier to convert to g
          var accelerometerValue = {
              x: event.accelerationIncludingGravity.x * JS_Accelerometer_multiplier,
              y: event.accelerationIncludingGravity.y * JS_Accelerometer_multiplier,
              z: event.accelerationIncludingGravity.z * JS_Accelerometer_multiplier
          };
          if (JS_Accelerometer_callback != 0)
              dynCall_vfff(JS_Accelerometer_callback, accelerometerValue.x, accelerometerValue.y, accelerometerValue.z);
  
          // The acceleration property is the amount of acceleration recorded by the device, in meters per second squared (m/s2), compensated for gravity.
          // Apply the JS_Accelerometer_multiplier to convert to g
          var linearAccelerationValue = {
              x: event.acceleration.x * JS_Accelerometer_multiplier,
              y: event.acceleration.y * JS_Accelerometer_multiplier,
              z: event.acceleration.z * JS_Accelerometer_multiplier
          };
          if (JS_LinearAccelerationSensor_callback != 0)
              dynCall_vfff(JS_LinearAccelerationSensor_callback, linearAccelerationValue.x, linearAccelerationValue.y, linearAccelerationValue.z);
  
          // Compute and raise the gravity sensor vector
          if (JS_GravitySensor_callback != 0) {
              assert(typeof GravitySensor === 'undefined');
              var gravityValue = JS_ComputeGravity(accelerometerValue, linearAccelerationValue);
              dynCall_vfff(JS_GravitySensor_callback, gravityValue.x, gravityValue.y, gravityValue.z);
          }
  
          // The rotationRate property describes the rotation rates of the device around each of its axes (deg/s), but we want in radians/s so must scale
          // Note that the spec here has been updated so x,y,z axes are alpha,beta,gamma.
          // Therefore the order of axes at https://developer.mozilla.org/en-US/docs/Web/API/DeviceMotionEvent/rotationRate is incorrect
          //
          // There is a bug in Chrome < M66 where rotationRate values are not in deg/s https://bugs.chromium.org/p/chromium/issues/detail?id=541607
          // But that version is too old to include a check here
          if (JS_Gyroscope_callback != 0) {
              var degToRad = Math.PI / 180;
              dynCall_vfff(JS_Gyroscope_callback, event.rotationRate.alpha * degToRad, event.rotationRate.beta * degToRad, event.rotationRate.gamma * degToRad);
          }
      }
  
  var JS_DeviceSensorPermissions = 0;
  function JS_RequestDeviceSensorPermissions(permissions) {
          // iOS requires that we request permissions before using device sensor events
          if (permissions & 1/*DeviceOrientationEvent permission*/) {
              if (typeof DeviceOrientationEvent.requestPermission === 'function') {
                  DeviceOrientationEvent.requestPermission()
                      .then(function(permissionState) {
                          if (permissionState === 'granted') {
                              JS_DeviceSensorPermissions &= ~1; // Remove DeviceOrientationEvent permission bit
                          } else {
                              warnOnce("DeviceOrientationEvent permission not granted");
                          }
                      })
                      .catch(function(err) {
                          // Permissions cannot be requested unless on a user interaction (a touch event)
                          // So in this case set JS_DeviceSensorPermissions and we will try again on a touch event
                          warnOnce(err);
                          JS_DeviceSensorPermissions |= 1/*DeviceOrientationEvent permission*/;
                      });
              }
          }
          if (permissions & 2/*DeviceMotionEvent permission*/) {
              if (typeof DeviceMotionEvent.requestPermission === 'function') {
                  DeviceMotionEvent.requestPermission()
                      .then(function(permissionState) {
                          if (permissionState === 'granted') {
                              JS_DeviceSensorPermissions &= ~2; // Remove DeviceMotionEvent permission bit
                          } else {
                              warnOnce("DeviceMotionEvent permission not granted");
                          }
                      })
                      .catch(function(err) {
                          // Permissions cannot be requested unless on a user interaction (a touch event)
                          // So in this case set JS_DeviceSensorPermissions and we will try again on a touch event
                          warnOnce(err);
                          JS_DeviceSensorPermissions |= 2/*DeviceMotionEvent permission*/;
                      });
              }
          }
      }
  function JS_DeviceMotion_add() {
          // Only add the event listener if we don't yet have any of the motion callbacks set
          if (JS_Accelerometer_callback == 0 &&
              JS_LinearAccelerationSensor_callback == 0 &&
              JS_GravitySensor_callback == 0 &&
              JS_Gyroscope_callback == 0) {
              JS_RequestDeviceSensorPermissions(2/*DeviceMotionEvent permission*/);
              window.addEventListener('devicemotion', JS_DeviceMotion_eventHandler);
          }
      }
  
  function JS_DefineAccelerometerMultiplier() {
          // Earth's gravity in m/s^2, same as ASENSOR_STANDARD_GRAVITY
          var g = 9.80665;
  
          // Multiplier is 1/g to normalize acceleration
          // iOS has its direction opposite to Android and Windows (tested Surface Pro tablet)
          // We include Macintosh in the test to capture Safari on iOS viewing in Desktop mode (the default now on iPads)
          JS_Accelerometer_multiplier = (/(iPhone|iPad|Macintosh)/i.test(navigator.userAgent)) ? 1/g : -1/g;
      }
  function _JS_Accelerometer_Start(callback, frequency) {
          // callback can be zero here when called via JS_GravitySensor_Start
  
          JS_DefineAccelerometerMultiplier();
  
          // If we don't have new sensor API, fallback to old DeviceMotionEvent
          if (typeof Accelerometer === 'undefined') {
              JS_DeviceMotion_add(); // Must call before we set the callback
              if (callback != 0) JS_Accelerometer_callback = callback;
              return;
          }
  
          if (callback != 0) JS_Accelerometer_callback = callback;
  
          function InitializeAccelerometer(frequency) {
              // Use device referenceFrame, since New Input System package does its own compensation
              JS_Accelerometer = new Accelerometer({ frequency: frequency, referenceFrame: 'device' });
              JS_Accelerometer.addEventListener('reading', JS_Accelerometer_eventHandler);
              JS_Accelerometer.addEventListener('error', function(e) {
                  // e.error could be DOMException: Could not connect to a sensor
                  warnOnce((e.error) ? e.error : e);
              });
              JS_Accelerometer.start();
              JS_Accelerometer_frequency = frequency;
          }
  
          // If the sensor is already created, stop and re-create it with new frequency
          if (JS_Accelerometer) {
              if (JS_Accelerometer_frequency != frequency) {
                  JS_Accelerometer.stop();
                  JS_Accelerometer.removeEventListener('reading', JS_Accelerometer_eventHandler);
                  InitializeAccelerometer(frequency);
              }
          }
          else if (JS_Accelerometer_frequencyRequest != 0) {
              // If the permissions promise is currently in progress, then note new frequency only
              JS_Accelerometer_frequencyRequest = frequency;
          }
          else {
              JS_Accelerometer_frequencyRequest = frequency;
  
              // Request required permission for the Accelerometer
              navigator.permissions.query({name: 'accelerometer'})
                  .then(function(result) {
                      if (result.state === "granted") {
                          InitializeAccelerometer(JS_Accelerometer_frequencyRequest);
                      } else {
                          warnOnce("No permission to use Accelerometer.");
                      }
                      JS_Accelerometer_frequencyRequest = 0;
              });
          }
      }

  function JS_DeviceMotion_remove() {
          // If we've removed the last callback, remove the devicemotion event listener
          if (JS_Accelerometer_callback == 0 &&
              JS_LinearAccelerationSensor_callback == 0 &&
              JS_GravitySensor_callback == 0 &&
              JS_Gyroscope_callback == 0 ) {
              window.removeEventListener('devicemotion', JS_DeviceOrientation_eventHandler);
          }
      }
  function _JS_Accelerometer_Stop() {
          if (JS_Accelerometer) {
              // Only actually stop the accelerometer if we don't need it to compute gravity values
              if (typeof GravitySensor !== 'undefined' || JS_GravitySensor_callback == 0) {
                  JS_Accelerometer.stop();
                  JS_Accelerometer.removeEventListener('reading', JS_Accelerometer_eventHandler);
                  JS_Accelerometer = null;
              }
              JS_Accelerometer_callback = 0;
              JS_Accelerometer_frequency = 0;
          }
          else if (JS_Accelerometer_callback != 0) {
              JS_Accelerometer_callback = 0;
              JS_DeviceMotion_remove();
          }
      }

  var ExceptionsSeen = 0;
  function _JS_CallAsLongAsNoExceptionsSeen(cb) {
  		if (!ExceptionsSeen) {
  			try {
  				(function() {  dynCall_v.call(null, cb); })();
  			} catch(e) {
  				ExceptionsSeen = 1;
  				console.error('Uncaught exception from main loop:');
  				console.error(e);
  				console.error('Halting program.');
  				if (Module.errorHandler) Module.errorHandler(e);
  				throw e;
  			}
  		}
  	}

  function _JS_Cursor_SetImage(ptr, length) {
      var binary = "";
      for (var i = 0; i < length; i++)
        binary += String.fromCharCode(HEAPU8[ptr + i]);
      Module.canvas.style.cursor = "url(data:image/cur;base64," + btoa(binary) + "),default";
    }

  function _JS_Cursor_SetShow(show) {
      Module.canvas.style.cursor = show ? "default" : "none";
    }

  function jsDomCssEscapeId(id) {
  		// Use CSS Object Model to escape ID if feature is present
  		if (typeof window.CSS !== "undefined" && typeof window.CSS.escape !== "undefined") {
  			return window.CSS.escape(id);
  		}
  
  		// Fallback: Escape special characters with RegExp. This handles most cases but not all!
  		return id.replace(/(#|\.|\+|\[|\]|\(|\)|\{|\})/g, "\\$1");
  	}
  function jsCanvasSelector() {
  		// This lookup specifies the target canvas that different DOM
  		// events are registered to, like keyboard and mouse events.
  		// This requires that Module['canvas'] must have a CSS ID associated
  		// with it, it cannot be empty. Override Module['canvas'] to specify
  		// some other target to use, e.g. if the page contains multiple Unity
  		// game instances.
  		if (Module['canvas'] && !Module['canvas'].id) throw 'Module["canvas"] must have a CSS ID associated with it!';
  		var canvasId = Module['canvas'] ? Module['canvas'].id : 'unity-canvas';
  		return '#' + jsDomCssEscapeId(canvasId);
  	}
  function _JS_DOM_MapViewportCoordinateToElementLocalCoordinate(viewportX, viewportY, targetX, targetY) {
  		var canvas = document.querySelector(jsCanvasSelector());
  		var rect = canvas && canvas.getBoundingClientRect();
  		HEAPU32[targetX >> 2] = viewportX - (rect ? rect.left : 0);
  		HEAPU32[targetY >> 2] = viewportY - (rect ? rect.top : 0);
  	}

  function stringToNewUTF8(jsString) {
      var length = lengthBytesUTF8(jsString)+1;
      var cString = _malloc(length);
      stringToUTF8(jsString, cString, length);
      return cString;
    }
  function _JS_DOM_UnityCanvasSelector() {
  		var canvasSelector = jsCanvasSelector();
  		if (_JS_DOM_UnityCanvasSelector.selector != canvasSelector) {
  			_free(_JS_DOM_UnityCanvasSelector.ptr);
  			_JS_DOM_UnityCanvasSelector.ptr = stringToNewUTF8(canvasSelector);
  			_JS_DOM_UnityCanvasSelector.selector = canvasSelector;
  		}
  		return _JS_DOM_UnityCanvasSelector.ptr;
  	}

  var fs = {numPendingSync:0,syncInternal:1000,syncInProgress:false,sync:function(onlyPendingSync)
  	{
  		if (onlyPendingSync) {
  			if (fs.numPendingSync == 0)
  				return;
  		}
  		else if (fs.syncInProgress) {
  			// this is to avoid indexedDB memory leak when FS.syncfs is executed before the previous one completed.
  			fs.numPendingSync++;
  			return;
  		}
  
  		fs.syncInProgress = true;
  		FS.syncfs(false, (function(err) {
  			fs.syncInProgress = false;
  		}));
  		fs.numPendingSync = 0;
  	}};
  function _JS_FileSystem_Initialize()
  {
  	Module.setInterval(function(){
  		fs.sync(true);
  	}, fs.syncInternal);
  }

  function _JS_FileSystem_Sync()
  {
  	fs.sync(false);
  }

  var JS_GravitySensor = null;
  function _JS_GravitySensor_IsRunning() {
          return (typeof GravitySensor !== 'undefined') ? (JS_GravitySensor && JS_GravitySensor.activated) : JS_GravitySensor_callback != 0;
      }

  function JS_GravitySensor_eventHandler() {
          if (JS_GravitySensor_callback != 0)
              dynCall_vfff(JS_GravitySensor_callback,
                  JS_GravitySensor.x * JS_Accelerometer_multiplier,
                  JS_GravitySensor.y * JS_Accelerometer_multiplier,
                  JS_GravitySensor.z * JS_Accelerometer_multiplier);
      }
  
  var JS_GravitySensor_frequencyRequest = 0;
  
  var JS_LinearAccelerationSensor = null;
  
  function JS_LinearAccelerationSensor_eventHandler() {
          var linearAccelerationValue = {
              x: JS_LinearAccelerationSensor.x * JS_Accelerometer_multiplier,
              y: JS_LinearAccelerationSensor.y * JS_Accelerometer_multiplier,
              z: JS_LinearAccelerationSensor.z * JS_Accelerometer_multiplier
          };
          if (JS_LinearAccelerationSensor_callback != 0)
              dynCall_vfff(JS_LinearAccelerationSensor_callback, linearAccelerationValue.x, linearAccelerationValue.y, linearAccelerationValue.z);
  
          // Calculate and call the Gravity callback if the Gravity Sensor API isn't present
          if (JS_GravitySensor_callback != 0 && typeof GravitySensor === 'undefined') {
              var gravityValue = JS_ComputeGravity(JS_Accelerometer_lastValue, linearAccelerationValue);
              dynCall_vfff(JS_GravitySensor_callback, gravityValue.x, gravityValue.y, gravityValue.z);
          }
      }
  
  var JS_LinearAccelerationSensor_frequencyRequest = 0;
  
  var JS_LinearAccelerationSensor_frequency = 0;
  function _JS_LinearAccelerationSensor_Start(callback, frequency) {
          // callback can be zero here when called via JS_GravitySensor_Start
  
          JS_DefineAccelerometerMultiplier();
  
          // If we don't have new sensor API, fallback to old DeviceMotionEvent
          if (typeof LinearAccelerationSensor === 'undefined') {
              JS_DeviceMotion_add(); // Must call before we set the callback
              if (callback != 0) JS_LinearAccelerationSensor_callback = callback;
              return;
          }
  
          if (callback != 0) JS_LinearAccelerationSensor_callback = callback;
  
          function InitializeLinearAccelerationSensor(frequency) {
              // Use device referenceFrame, since New Input System package does its own compensation
              JS_LinearAccelerationSensor = new LinearAccelerationSensor({ frequency: frequency, referenceFrame: 'device' });
              JS_LinearAccelerationSensor.addEventListener('reading', JS_LinearAccelerationSensor_eventHandler);
              JS_LinearAccelerationSensor.addEventListener('error', function(e) {
                  // e.error could be DOMException: Could not connect to a sensor
                  warnOnce((e.error) ? e.error : e);
              });
              JS_LinearAccelerationSensor.start();
              JS_LinearAccelerationSensor_frequency = frequency;
          }
  
          // If the sensor is already created, stop and re-create it with new frequency
          if (JS_LinearAccelerationSensor) {
              if (JS_LinearAccelerationSensor_frequency != frequency) {
                  JS_LinearAccelerationSensor.stop();
                  JS_LinearAccelerationSensor.removeEventListener('reading', JS_LinearAccelerationSensor_eventHandler);
                  InitializeLinearAccelerationSensor(frequency);
              }
          }
          else if (JS_LinearAccelerationSensor_frequencyRequest != 0) {
              // If the permissions promise is currently in progress, then note new frequency only
              JS_LinearAccelerationSensor_frequencyRequest = frequency;
          }
          else {
              JS_LinearAccelerationSensor_frequencyRequest = frequency;
  
              // Request required permission for the LinearAccelerationSensor
              navigator.permissions.query({name: 'accelerometer'})
                  .then(function(result) {
                      if (result.state === "granted") {
                          InitializeLinearAccelerationSensor(JS_LinearAccelerationSensor_frequencyRequest);
                      } else {
                          warnOnce("No permission to use LinearAccelerationSensor.");
                      }
                      JS_LinearAccelerationSensor_frequencyRequest = 0;
              });
          }
      }
  function _JS_GravitySensor_Start(callback, frequency) {
          assert(callback != 0, 'Invalid callback passed to JS_GravitySensor_Start');
  
          // If we don't have explicit new Gravity Sensor API, start the Accelerometer and LinearAccelerationSensor
          // and we will compute the gravity value from those readings
          if (typeof GravitySensor === 'undefined') {
              // Start both Accelerometer and LinearAccelerationSensor
              _JS_Accelerometer_Start(0, Math.max(frequency, JS_Accelerometer_frequency));
              _JS_LinearAccelerationSensor_Start(0, Math.max(frequency, JS_LinearAccelerationSensor_frequency));
  
              // Add the gravity sensor callback (must be after Accelerometer and LinearAccelerationSensor start)
              JS_GravitySensor_callback = callback;
              return;
          }
  
          JS_DefineAccelerometerMultiplier();
  
          JS_GravitySensor_callback = callback;
  
          function InitializeGravitySensor(frequency) {
              // Use device referenceFrame, since New Input System package does its own compensation
              JS_GravitySensor = new GravitySensor({ frequency: frequency, referenceFrame: 'device' });
              JS_GravitySensor.addEventListener('reading', JS_GravitySensor_eventHandler);
              JS_GravitySensor.addEventListener('error', function(e) {
                  // e.error could be DOMException: Could not connect to a sensor
                  warnOnce((e.error) ? e.error : e);
              });
              JS_GravitySensor.start();
          }
  
          // If the sensor is already created, stop and re-create it with new frequency
          if (JS_GravitySensor) {
              JS_GravitySensor.stop();
              JS_GravitySensor.removeEventListener('reading', JS_GravitySensor_eventHandler);
              InitializeGravitySensor(frequency);
          }
          else if (JS_GravitySensor_frequencyRequest != 0) {
              // If the permissions promise is currently in progress, then note new frequency only
              JS_GravitySensor_frequencyRequest = frequency;
          }
          else {
              JS_GravitySensor_frequencyRequest = frequency;
  
              // Request required permission for the GravitySensor
              navigator.permissions.query({name: 'accelerometer'})
                  .then(function(result) {
                      if (result.state === "granted") {
                          InitializeGravitySensor(JS_GravitySensor_frequencyRequest);
                      } else {
                          warnOnce("No permission to use GravitySensor.");
                      }
                      JS_GravitySensor_frequencyRequest = 0;
              });
          }
      }

  function _JS_LinearAccelerationSensor_Stop() {
          if (JS_LinearAccelerationSensor) {
              // Only actually stop the Linear Acceleration Sensor if we don't need it to compute gravity values
              if (typeof GravitySensor !== 'undefined' || JS_GravitySensor_callback == 0) {
                  JS_LinearAccelerationSensor.stop();
                  JS_LinearAccelerationSensor.removeEventListener('reading', JS_LinearAccelerationSensor_eventHandler);
                  JS_LinearAccelerationSensor = null;
              }
              JS_LinearAccelerationSensor_callback = 0;
              JS_LinearAccelerationSensor_frequency = 0;
          }
          else if (JS_LinearAccelerationSensor_callback != 0) {
              JS_LinearAccelerationSensor_callback = 0;
              JS_DeviceMotion_remove();
          }
      }
  function _JS_GravitySensor_Stop() {
          JS_GravitySensor_callback = 0;
  
          // If we don't have Gravity Sensor API, stop the Accelerometer and LinearAccelerationSensor
          if (typeof GravitySensor === 'undefined') {
              // Stop the source sensors if they're not used explicitly by Unity
              if (JS_Accelerometer_callback == 0) _JS_Accelerometer_Stop();
              if (JS_LinearAccelerationSensor_callback == 0) _JS_LinearAccelerationSensor_Stop();
              return;
          }
  
          if (JS_GravitySensor) {
              JS_GravitySensor.stop();
              JS_GravitySensor.removeEventListener('reading', JS_GravitySensor_eventHandler);
              JS_GravitySensor = null;
          }
      }

  function _JS_GuardAgainstJsExceptions(cb) {
  		try {
  			(function() {  dynCall_v.call(null, cb); })();
  		} catch(e) {
  			console.warn(e);
  		}
  	}

  var JS_Gyroscope = null;
  function _JS_Gyroscope_IsRunning() {
          // Sensor is running if there is an activated new JS_Gyroscope; or the JS_Gyroscope_callback is hooked up
          return (JS_Gyroscope && JS_Gyroscope.activated) || (JS_Gyroscope_callback != 0);
      }

  function JS_Gyroscope_eventHandler() {
          // Radians per second
          if (JS_Gyroscope_callback != 0)
              dynCall_vfff(JS_Gyroscope_callback, JS_Gyroscope.x, JS_Gyroscope.y, JS_Gyroscope.z);
      }
  
  var JS_Gyroscope_frequencyRequest = 0;
  function _JS_Gyroscope_Start(callback, frequency) {
          assert(callback != 0, 'Invalid callback passed to JS_Gyroscope_Start');
  
          // If we don't have new sensor API, fallback to old DeviceMotionEvent
          if (typeof Gyroscope === 'undefined') {
              JS_DeviceMotion_add(); // Must call before we set the callback
              JS_Gyroscope_callback = callback;
              return;
          }
  
          JS_Gyroscope_callback = callback;
  
          function InitializeGyroscope(frequency) {
              // Use device referenceFrame, since New Input System package does its own compensation
              JS_Gyroscope = new Gyroscope({ frequency: frequency, referenceFrame: 'device' });
              JS_Gyroscope.addEventListener('reading', JS_Gyroscope_eventHandler);
              JS_Gyroscope.addEventListener('error', function(e) {
                  // e.error could be DOMException: Could not connect to a sensor
                  warnOnce((e.error) ? e.error : e);
              });
              JS_Gyroscope.start();
          }
  
          // If the sensor is already created, stop and re-create it with new frequency
          if (JS_Gyroscope) {
              JS_Gyroscope.stop();
              JS_Gyroscope.removeEventListener('reading', JS_Gyroscope_eventHandler);
              InitializeGyroscope(frequency);
          }
          else if (JS_Gyroscope_frequencyRequest != 0) {
              // If the permissions promise is currently in progress, then note new frequency only
              JS_Gyroscope_frequencyRequest = frequency;
          }
          else {
              JS_Gyroscope_frequencyRequest = frequency;
  
              // Request required permission for the Gyroscope
              navigator.permissions.query({name: 'gyroscope'})
                  .then(function(result) {
                      if (result.state === "granted") {
                          InitializeGyroscope(JS_Gyroscope_frequencyRequest);
                      } else {
                          warnOnce("No permission to use Gyroscope.");
                      }
                      JS_Gyroscope_frequencyRequest = 0;
              });
          }
      }

  function _JS_Gyroscope_Stop() {
          if (JS_Gyroscope) {
              JS_Gyroscope.stop();
              JS_Gyroscope.removeEventListener('reading', JS_Gyroscope_eventHandler);
              JS_Gyroscope = null;
              JS_Gyroscope_callback = 0;
          }
          else if (JS_Gyroscope_callback != 0) {
              JS_Gyroscope_callback = 0;
              JS_DeviceMotion_remove();
          }
      }

  function _JS_Init_ContextMenuHandler() {
          const _handleContextMenu = function (event){
              if(event.target.localName !== "canvas")
                  _ReleaseKeys();
          }
  
          document.addEventListener("contextmenu", _handleContextMenu);
  
          Module.deinitializers.push(function() {
              document.removeEventListener("contextmenu", _handleContextMenu);
          });
      }

  function _JS_LinearAccelerationSensor_IsRunning() {
          // Sensor is running if there is an activated new JS_LinearAccelerationSensor; or the JS_LinearAccelerationSensor_callback is hooked up
          return (JS_LinearAccelerationSensor && JS_LinearAccelerationSensor.activated) || (JS_LinearAccelerationSensor_callback != 0);
      }



  function _JS_Log_Dump(ptr, type)
  {
  	var str = UTF8ToString(ptr);
  	if (typeof dump == 'function')
  		dump (str);
  	switch (type)
  	{
  		case 0: //LogType_Error
  		case 1: //LogType_Assert
  		case 4: //LogType_Exception
  			console.error (str);
  			return;
  
  		case 2: //LogType_Warning
  			console.warn (str);
  			return;
  
  		case 3: //LogType_Log
  		case 5: //LogType_Debug
  			console.log (str);
  			return;			
  
  		default:
  			console.error ("Unknown console message type!")
  			console.error (str);
  	}
  }

  function _JS_Log_StackTrace(buffer, bufferSize)
  {
  	var trace = stackTrace();
  	if (buffer)
  		stringToUTF8(trace, buffer, bufferSize);
  	return lengthBytesUTF8(trace);	
  }

  var mobile_input_hide_delay = null;
  var mobile_input_text = null;
  var mobile_input = null;
  var mobile_input_ignore_blur_event = false;
  function _JS_MobileKeybard_GetIgnoreBlurEvent() {
      // On some platforms, such as iOS15, a blur event is sent to the window after the keyboard
      // is closed. This causes the game to be paused in the blur event handler in ScreenManagerWebGL.
      // It checks this return value to see if it should ignore the blur event.
      return mobile_input_ignore_blur_event;
  }

  var JS_OrientationSensor = null;
  
  var JS_OrientationSensor_callback = 0;
  function _JS_OrientationSensor_IsRunning() {
          // Sensor is running if there is an activated new JS_OrientationSensor; or the DeviceOrientation handler is hooked up
          return (JS_OrientationSensor && JS_OrientationSensor.activated) || (JS_OrientationSensor_callback != 0);
      }

  function JS_OrientationSensor_eventHandler() {
          if (JS_OrientationSensor_callback != 0)
              dynCall_vffff(JS_OrientationSensor_callback, JS_OrientationSensor.quaternion[0], JS_OrientationSensor.quaternion[1], JS_OrientationSensor.quaternion[2], JS_OrientationSensor.quaternion[3]);
      }
  
  var JS_OrientationSensor_frequencyRequest = 0;
  
  function JS_DeviceOrientation_eventHandler(event) {
          if (JS_OrientationSensor_callback) {
              // OBSERVATION: On Android Firefox, absolute = false, webkitCompassHeading = null
              // OBSERVATION: On iOS Safari, absolute is undefined, webkitCompassHeading and webkitCompassAccuracy are set
  
              // Convert alpha, beta, gamma Euler angles to a quaternion
              var degToRad = Math.PI / 180;
              var x = event.beta * degToRad;
              var y = event.gamma * degToRad;
              var z = event.alpha * degToRad;
  
              var cx = Math.cos(x/2);
              var sx = Math.sin(x/2);
              var cy = Math.cos(y/2);
              var sy = Math.sin(y/2);
              var cz = Math.cos(z/2);
              var sz = Math.sin(z/2);
  
              var qx = sx * cy * cz - cx * sy * sz;
              var qy = cx * sy * cz + sx * cy * sz;
              var qz = cx * cy * sz + sx * sy * cz;
              var qw = cx * cy * cz - sx * sy * sz;
  
              dynCall_vffff(JS_OrientationSensor_callback, qx, qy, qz, qw);
          }
      }
  function _JS_OrientationSensor_Start(callback, frequency) {
          assert(callback != 0, 'Invalid callback passed to JS_OrientationSensor_Start');
  
          // If we don't have new sensor API, fallback to old DeviceOrientationEvent
          if (typeof RelativeOrientationSensor === 'undefined') {
              if (JS_OrientationSensor_callback == 0) {
                  JS_OrientationSensor_callback = callback;
                  JS_RequestDeviceSensorPermissions(1/*DeviceOrientationEvent permission*/);
                  window.addEventListener('deviceorientation', JS_DeviceOrientation_eventHandler);
              }
              return;
          }
  
          JS_OrientationSensor_callback = callback;
  
          function InitializeOrientationSensor(frequency) {
              // Use device referenceFrame, since New Input System package does its own compensation
              // Use relative orientation to match native players
              JS_OrientationSensor = new RelativeOrientationSensor({ frequency: frequency, referenceFrame: 'device' });
              JS_OrientationSensor.addEventListener('reading', JS_OrientationSensor_eventHandler);
              JS_OrientationSensor.addEventListener('error', function(e) {
                  // e.error could be DOMException: Could not connect to a sensor
                  warnOnce((e.error) ? e.error : e);
              });
              JS_OrientationSensor.start();
          }
  
          // If the sensor is already created, stop and re-create it with new frequency
          if (JS_OrientationSensor) {
              JS_OrientationSensor.stop();
              JS_OrientationSensor.removeEventListener('reading', JS_OrientationSensor_eventHandler);
              InitializeOrientationSensor(frequency);
          }
          else if (JS_OrientationSensor_frequencyRequest != 0) {
              // If the permissions promise is currently in progress, then note new frequency only
              JS_OrientationSensor_frequencyRequest = frequency;
          }
          else {
              JS_OrientationSensor_frequencyRequest = frequency;
  
              // Request required permissions for the RelativeOrientationSensor
              Promise.all([navigator.permissions.query({ name: "accelerometer" }),
                           navigator.permissions.query({ name: "gyroscope" })])
                  .then(function(results) {
                      if (results.every(function(result) {return(result.state === "granted");})) {
                          InitializeOrientationSensor(JS_OrientationSensor_frequencyRequest);
                      } else {
                          warnOnce("No permissions to use RelativeOrientationSensor.");
                      }
                      JS_OrientationSensor_frequencyRequest = 0;
              });
          }
      }

  function _JS_OrientationSensor_Stop() {
          if (JS_OrientationSensor) {
              JS_OrientationSensor.stop();
              JS_OrientationSensor.removeEventListener('reading', JS_OrientationSensor_eventHandler);
              JS_OrientationSensor = null;
          }
          else if (JS_OrientationSensor_callback != 0) {
              window.removeEventListener('deviceorientation', JS_DeviceOrientation_eventHandler);
          }
          JS_OrientationSensor_callback = 0;
      }

  function _JS_Profiler_InjectJobs()
  {
    for (var jobname in Module["Jobs"])
    {
      var job = Module["Jobs"][jobname];
      if (typeof job["endtime"] != "undefined")
         Module.ccall("InjectProfilerSample", null, ["string", "number", "number"], [jobname, job.starttime, job.endtime]);
     }
  }

  function _JS_RequestDeviceSensorPermissionsOnTouch() {
          if (JS_DeviceSensorPermissions == 0) return;
  
          // Re-request any required device sensor permissions (iOS requires that permissions are requested on a user interaction event)
          JS_RequestDeviceSensorPermissions(JS_DeviceSensorPermissions);
      }

  function _JS_RunQuitCallbacks() {
  	Module.QuitCleanup();
  }

  var JS_ScreenOrientation_callback = 0;
  function JS_ScreenOrientation_eventHandler() {
  		if (JS_ScreenOrientation_callback) dynCall_viii(JS_ScreenOrientation_callback, window.innerWidth, window.innerHeight, screen.orientation ? screen.orientation.angle : window.orientation);
  	}
  function _JS_ScreenOrientation_DeInit() {
  		JS_ScreenOrientation_callback = 0;
  		window.removeEventListener('resize', JS_ScreenOrientation_eventHandler);
  		if (screen.orientation) {
  			screen.orientation.removeEventListener('change', JS_ScreenOrientation_eventHandler);
  		}
  	}

  function _JS_ScreenOrientation_Init(callback) {
  		// Only register if not yet registered
  		if (!JS_ScreenOrientation_callback) {
  			if (screen.orientation) {
  				// Use Screen Orientation API if available:
  				// - https://www.w3.org/TR/screen-orientation/
  				// - https://caniuse.com/screen-orientation
  				// - https://developer.mozilla.org/en-US/docs/Web/API/Screen/orientation
  				// (Firefox, Chrome, Chrome for Android, Firefox for Android)
  				screen.orientation.addEventListener('change', JS_ScreenOrientation_eventHandler);
  			}
  
  			// As a fallback, use deprecated DOM window.orientation field if available:
  			// - https://compat.spec.whatwg.org/#dom-window-orientation
  			// - https://developer.mozilla.org/en-US/docs/Web/API/Window/orientation
  			// (Safari for iOS)
  			// Listening to resize event also helps emulate landscape/portrait transitions on desktop
  			// browsers when the browser window is scaled to narrow/wide configurations.
  			window.addEventListener('resize', JS_ScreenOrientation_eventHandler);
  
  			JS_ScreenOrientation_callback = callback;
  
  			// Trigger the event handler immediately after the engine initialization is done to start up
  			// ScreenManager with the initial state.
  			setTimeout(JS_ScreenOrientation_eventHandler, 0);
  		}
  	}

  var JS_ScreenOrientation_requestedLockType = -1;
  
  var JS_ScreenOrientation_appliedLockType = -1;
  
  var JS_ScreenOrientation_timeoutID = -1;
  function _JS_ScreenOrientation_Lock(orientationLockType) {
  		// We will use the Screen Orientation API if available, and silently return if not available
  		// - https://www.w3.org/TR/screen-orientation/
  		// - https://caniuse.com/screen-orientation
  		// - https://developer.mozilla.org/en-US/docs/Web/API/Screen/orientation
  		if (!screen.orientation || !screen.orientation.lock) {
  			// As of writing, this is only not implemented on Safari
  			return;
  		}
  
  		// Callback to apply the lock
  		function applyLock() {
  			JS_ScreenOrientation_appliedLockType = JS_ScreenOrientation_requestedLockType;
  
  			// Index must match enum class OrientationLockType in ScreenOrientation.h
  			var screenOrientations = ['any', 0/*natural*/, 'landscape', 'portrait', 'portrait-primary', 'portrait-secondary', 'landscape-primary', 'landscape-secondary' ];
  			var type = screenOrientations[JS_ScreenOrientation_appliedLockType];
  
  			assert(type, 'Invalid orientationLockType passed to JS_ScreenOrientation_Lock');
  
  			// Apply the lock, which is done asynchronously and returns a Promise
  			screen.orientation.lock(type).then(function() {
  				// Upon success, see if the JS_ScreenOrientation_requestedLockType value has changed, in which case, we will now need to queue another applyLock
  				if (JS_ScreenOrientation_requestedLockType != JS_ScreenOrientation_appliedLockType) {
  					JS_ScreenOrientation_timeoutID = setTimeout(applyLock, 0);
  				}
  				else {
  					JS_ScreenOrientation_timeoutID = -1;
  				}
  			}).catch(function(err) {
  				// When screen.orientation.lock() is called on a desktop browser, a DOMException is thrown by the promise
  				warnOnce(err);
  				JS_ScreenOrientation_timeoutID = -1;
  			});
  
  			// Note, there is also an screen.orientation.unlock() which unlocks auto rotate to default orientation.
  			// On my Google Pixel 5, this allows 'portrait-primary' AND 'landscape', but will differ depending on device.
  		}
  
  		// Request this orientationLockType be applied on the callback
  		JS_ScreenOrientation_requestedLockType = orientationLockType;
  
  		// Queue applyLock callback if there is not already a callback or a screen.orientation.lock call in progress
  		if (JS_ScreenOrientation_timeoutID == -1 && orientationLockType != JS_ScreenOrientation_appliedLockType) {
  			JS_ScreenOrientation_timeoutID = setTimeout(applyLock, 0);
  		}
  	}

  var WEBAudio = {audioInstanceIdCounter:0,audioInstances:{},audioContext:null,audioWebEnabled:0,audioCache:[],pendingAudioSources:{}};
  function jsAudioMixinSetPitch(source) {
  	// Add a helper to AudioBufferSourceNode which gives the current playback position of the clip in seconds.
  	source.estimatePlaybackPosition = function () {
  		var t = (WEBAudio.audioContext.currentTime - source.playbackStartTime) * source.playbackRate.value;
  		// Collapse extra times that the audio clip has looped through.
  		if (source.loop && t >= source.loopStart) {
  			t = (t - source.loopStart) % (source.loopEnd - source.loopStart) + source.loopStart;
  		}
  		return t;
  	}
  
  	// Add a helper to AudioBufferSourceNode to allow adjusting pitch in a way that keeps playback position estimation functioning.
  	source.setPitch = function (newPitch) {
  		var curPosition = source.estimatePlaybackPosition();
  		if (curPosition >= 0) { // If negative, the clip has not begun to play yet (that delay is not scaled by pitch)
  			source.playbackStartTime = WEBAudio.audioContext.currentTime - curPosition / newPitch;
  		}
  		if (source.playbackRate.value !== newPitch) source.playbackRate.value = newPitch;
  	}
  }
  function jsAudioCreateUncompressedSoundClip(buffer, error) {
  	var soundClip = {
  		buffer: buffer,
  		error: error
  	};
  
  	/**
  	 * Release resources of a sound clip
  	 */
  	soundClip.release = function () { };
  
  	/**
  	 * Get length of sound clip in number of samples
  	 * @returns {number}
  	 */
  	soundClip.getLength = function () {
  		if (!this.buffer) {
  			console.log ("Trying to get length of sound which is not loaded.");
  			return 0;
  		}
  
  		// Fakemod assumes sample rate is 44100, though that's not necessarily the case,
  		// depending on OS, if the audio file was not imported by our pipeline.
  		// Therefore we need to recalculate the length based on the actual samplerate.
  		var sampleRateRatio = 44100 / this.buffer.sampleRate;
  		return this.buffer.length * sampleRateRatio;
  	}
  
  	/**
  	 * Gets uncompressed audio data from sound clip.
  	 * If output buffer is smaller than the sound data only the first portion
  	 * of the sound data is read.
  	 * Sound clips with multiple channels will be stored one after the other.
  	 *
  	 * @param {number} ptr Pointer to the output buffer
  	 * @param {number} length Size of output buffer in bytes
  	 * @returns Size of data in bytes written to output buffer
  	 */
  	soundClip.getData = function (ptr, length) {
  		if (!this.buffer) {
  			console.log ("Trying to get data of sound which is not loaded.");
  			return 0;
  		}
  
  		// Get output buffer
  		var startOutputBuffer = ptr >> 2;
  		var output = HEAPF32.subarray(startOutputBuffer, startOutputBuffer + (length >> 2));
  		var numMaxSamples = Math.floor((length >> 2) / this.buffer.numberOfChannels);
  		var numReadSamples = Math.min(this.buffer.length, numMaxSamples);
  
  		// Copy audio data to outputbuffer
  		for (var i = 0; i < this.buffer.numberOfChannels; i++) {
  			var channelData = this.buffer.getChannelData(i).subarray(0, numReadSamples);
  			output.set(channelData, i * numReadSamples);
  		}
  
  		return numReadSamples * this.buffer.numberOfChannels * 4;
  	}
  
  	/**
  	 * Gets number of channels of soundclip
  	 * @returns {number}
  	 */
  	soundClip.getNumberOfChannels = function () {
  		if (!this.buffer) {
  			console.log ("Trying to get metadata of sound which is not loaded.");
  			return 0;
  		}
  
  		return this.buffer.numberOfChannels;
  	}
  
  	/**
  	 * Gets sampling rate in Hz
  	 * @returns {number}
  	 */
  	soundClip.getFrequency = function () {
  		if (!this.buffer) {
  			console.log ("Trying to get metadata of sound which is not loaded.");
  			return 0;
  		}
  
  		return this.buffer.sampleRate;
  	}
  
  	/**
  	 * Create an audio source node.
  	 * @returns {AudioBufferSourceNode}
  	 */
  	soundClip.createSourceNode = function () {
  		if (!this.buffer) {
  			console.log ("Trying to play sound which is not loaded.");
  		}
  
  		var source = WEBAudio.audioContext.createBufferSource();
  		source.buffer = this.buffer;
  		jsAudioMixinSetPitch(source);
  
  		return source;
  	};
  
  	return soundClip;
  }
  function jsAudioCreateChannel(callback, userData) {
  	var channel = {
  		callback: callback,
  		userData: userData,
  		source: null,
  		gain: WEBAudio.audioContext.createGain(),
  		panner: WEBAudio.audioContext.createPanner(),
  		threeD: false,
  		loop: false,
  		loopStart: 0,
  		loopEnd: 0,
  		pitch: 1.0
  	};
  
  	channel.panner.rolloffFactor = 0; // We calculate rolloff ourselves.
  
  	/**
  	 * Release internal resources.
  	 */
  	channel.release = function () {
  		// Explicitly disconnect audio nodes related to this audio channel when the channel should be
  		// GCd to work around Safari audio performance bug that resulted in crackling audio; as suggested
  		// in https://bugs.webkit.org/show_bug.cgi?id=222098#c23
  		this.disconnectSource();
  		this.gain.disconnect();
  		this.panner.disconnect();
  	}
  
  	/**
  	 * Play a sound clip on the channel
  	 * @param {UncompressedSoundClip|CompressedSoundClip} soundClip
  	 * @param {number} startTime Scheduled start time in seconds
  	 * @param {number} startOffset Start offset in seconds
  	 */
  	channel.playSoundClip = function (soundClip, startTime, startOffset) {
  		try {
  			var self = this;
  			this.source = soundClip.createSourceNode();
  			this.setupPanning();
  
  			// Setup on ended callback
  			this.source.onended = function () {
  				self.source.isStopped = true;
  				self.disconnectSource();
  				if (self.callback) {
  					dynCall("vi", self.callback, [self.userData]);
  				}
  			};
  
  			this.source.loop = this.loop;
  			this.source.loopStart = this.loopStart;
  			this.source.loopEnd = this.loopEnd;
  			this.source.start(startTime, startOffset);
  			this.source.playbackStartTime = startTime - startOffset / this.source.playbackRate.value;
  			this.source.setPitch(this.pitch);
  		} catch (e) {
  			// Need to catch exception, otherwise execution will stop on Safari if audio output is missing/broken
  			console.error("Channel.playSoundClip error. Exception: " + e);
  		}
  	};
  
  	/**
  	 * Stop playback on channel
  	 */
  	channel.stop = function (delay) {
  		if (!this.source) {
  			return;
  		}
  
  		// stop source currently playing.
  		try {
  			channel.source.stop(WEBAudio.audioContext.currentTime + delay);
  		} catch (e) {
  			// when stop() is used more than once for the same source in Safari it causes the following exception:
  			// InvalidStateError: DOM Exception 11: An attempt was made to use an object that is not, or is no longer, usable.
  			// Ignore that exception.
  		}
  
  		if (delay == 0) {
  			this.disconnectSource();
  		}
  	};
  
  	/**
  	 * Return wether the channel is currently paused
  	 * @returns {boolean}
  	 */
  	channel.isPaused = function () {
  		if (!this.source) {
  			return true;
  		}
  
  		if (this.source.isPausedMockNode) {
  			return true;
  		}
  
  		if (this.source.mediaElement) {
  			return this.source.mediaElement.paused || this.source.pauseRequested;
  		}
  
  		return false;
  	};
  
  	/**
  	 * Pause playback of channel
  	 */
  	channel.pause = function () {
  		if (!this.source || this.source.isPausedMockNode) {
  			return;
  		}
  
  		if (this.source.mediaElement) {
  			this.source._pauseMediaElement();
  			return;
  		}
  
  		// WebAudio does not have support for pausing and resuming AudioBufferSourceNodes (they are a fire-once abstraction)
  		// When we want to pause a node, create a mocked object in its place that represents the needed state that is required
  		// for resuming the clip.
  		var pausedSource = {
  			isPausedMockNode: true,
  			buffer: this.source.buffer,
  			loop: this.source.loop,
  			loopStart: this.source.loopStart,
  			loopEnd: this.source.loopEnd,
  			playbackRate: this.source.playbackRate.value,
  			scheduledStopTime: undefined,
  			// Specifies in seconds the time at the clip where the playback was paused at.
  			// Can be negative if the audio clip has not started yet.
  			playbackPausedAtPosition: this.source.estimatePlaybackPosition(),
  			setPitch: function (v) { this.playbackRate = v; },
  			stop: function(when) { this.scheduledStopTime = when; }
  		};
  		// Stop and clear the real audio source...
  		this.stop(0);
  		this.disconnectSource();
  		// .. and replace the source with a paused mock version.
  		this.source = pausedSource;
  	};
  
  	/**
  	 * Resume playback on channel.
  	 */
  	channel.resume = function () {
  		// If the source is a compressed audio MediaElement, it was directly paused so we can
  		// directly play it again.
  		if (this.source && this.source.mediaElement) {
  			this.source.start(undefined, this.source.currentTime);
  			return;
  		}
  
  		// N.B. We only resume a source that has been previously paused. That is, resume() cannot be used to start playback if
  		// channel was not playing an audio clip before, but playSoundClip() is to be used.
  		if (!this.source || !this.source.isPausedMockNode) {
  			return;
  		}
  
  		var pausedSource = this.source;
  		var soundClip = jsAudioCreateUncompressedSoundClip(pausedSource.buffer, false);
  		this.playSoundClip(soundClip, WEBAudio.audioContext.currentTime, Math.max(0, pausedSource.playbackPausedAtPosition));
  		this.source.loop = pausedSource.loop;
  		this.source.loopStart = pausedSource.loopStart;
  		this.source.loopEnd = pausedSource.loopEnd;
  		this.source.setPitch(pausedSource.playbackRate);
  
  		// Apply scheduled stop of source if present
  		if (typeof pausedSource.scheduledStopTime !== "undefined") {
  			var delay = Math.max(pausedSource.scheduledStopTime - WEBAudio.audioContext.currentTime, 0);
  			this.stop(delay);
  		}
  	};
  
  	/**
  	 * Set loop mode
  	 * @param {boolean} loop If true audio will be looped.
  	 */
  	channel.setLoop = function (loop) {
  		this.loop = loop;
  		if (!this.source || this.source.loop == loop) {
  			return;
  		}
  
  		this.source.loop = loop;
  	}
  
  	/**
  	 * Set loop start and end
  	 * @param {number} loopStart Start of the loop in seconds.
  	 * @param {number} loopEnd End of the loop in seconds.
  	 */
  	channel.setLoopPoints = function (loopStart, loopEnd) {
  		this.loopStart = loopStart;
  		this.loopEnd = loopEnd;
  		if (!this.source) {
  			return;
  		}
  
  		if (this.source.loopStart !== loopStart) {
  			this.source.loopStart = loopStart;
  		}
  
  		if (this.source.loopEnd !== loopEnd) {
  			this.source.loopEnd = loopEnd;
  		}
  	}
  
  	/**
  	 * Set channel 3D mode
  	 * @param {boolean} threeD If true the channel will be played back as 3D audio
  	 */
  	channel.set3D = function (threeD) {
  		if (this.threeD == threeD) {
  			return;
  		}
  		this.threeD = threeD;
  
  		// Only update node graph is source is initialized
  		if (!this.source) {
  			return;
  		}
  
  		this.setupPanning();
  	}
  
  	/**
  	 * Set the pitch of the channel
  	 * @param {number} pitch Pitch of the channel
  	 */
  	channel.setPitch = function (pitch) {
  		this.pitch = pitch;
  
  		// Only update pitch if source is initialized
  		if (!this.source) {
  			return;
  		}
  
  		this.source.setPitch(pitch);
  	}
  
  	/**
  	 * Set volume of channel
  	 * @param {number} volume Volume of channel
  	 */
  	channel.setVolume = function (volume) {
  		// Work around WebKit bug https://bugs.webkit.org/show_bug.cgi?id=222098
  		// Updating volume only if it changes reduces sound distortion over time.
  		// See case 1350204, 1348348 and 1352665
  		if (this.gain.gain.value == volume) {
  			return;
  		}
  
  		this.gain.gain.value = volume;
  	}
  
  	/**
  	 * Set the 3D position of the audio channel
  	 * @param {number} x
  	 * @param {number} y
  	 * @param {number} z
  	 */
  	channel.setPosition = function (x, y, z) {
  		var p = this.panner;
  
  		// Work around Chrome performance bug https://bugs.chromium.org/p/chromium/issues/detail?id=1133233
  		// by only updating the PannerNode position if it has changed.
  		// See case 1270768.
  		if (p.positionX) {
  			// Use new properties if they exist ...
  			if (p.positionX.value !== x) p.positionX.value = x;
  			if (p.positionY.value !== y) p.positionY.value = y;
  			if (p.positionZ.value !== z) p.positionZ.value = z;
  		} else if (p._x !== x || p._y !== y || p._z !== z) {
  			// ... or the deprecated set function if they don't (and shadow cache the set values to avoid re-setting later)
  			p.setPosition(x, y, z);
  			p._x = x;
  			p._y = y;
  			p._z = z;
  		}
  	}
  
  	/**
  	 * Disconnect source node from graph
  	 */
  	channel.disconnectSource = function () {
  		if (!this.source || this.source.isPausedMockNode) {
  			return;
  		}
  
  		if (this.source.mediaElement) {
  			// Pause playback of media element
  			this.source._pauseMediaElement();
  		}
  
  		this.source.onended = null;
  		this.source.disconnect();
  		delete this.source;
  	};
  
  	/**
  	 * Changes this audio channel to either 3D panning or 2D mode (no panning)
  	 */
  	channel.setupPanning = function () {
  		// We have a mocked paused object in effect?
  		if (this.source.isPausedMockNode) return;
  
  		// Configure audio panning options either for 3D or 2D.
  		this.source.disconnect();
  		this.panner.disconnect();
  		this.gain.disconnect();
  		if (this.threeD) {
  			// In 3D: AudioBufferSourceNode/MediaElementSourceNode -> PannerNode -> GainNode -> AudioContext.destination
  			this.source.connect(this.panner);
  			this.panner.connect(this.gain);
  		} else {
  			// In 2D: AudioBufferSourceNode/MediaElementSourceNode -> GainNode -> AudioContext.destination
  			this.source.connect(this.gain);
  		}
  		this.gain.connect(WEBAudio.audioContext.destination);
  	}
  
  	/**
  	 * Returns wether playback on a channel is stopped.
  	 * @returns {boolean} Returns true if playback on channel is stopped.
  	 */
  	 channel.isStopped = function () {
  		if (!this.source) {
  			// Uncompressed audio
  			// No playback source -> channel is stopped
  			return true;
  		}
  
  		if (this.source.mediaElement) {
  			// Compressed audio
  			return this.source.isStopped;
  		} 
  
  		return false;
  	}
  
  	return channel;
  }
  function _JS_Sound_Create_Channel(callback, userData)
  {
  	if (WEBAudio.audioWebEnabled == 0)
  		return;
  
  	WEBAudio.audioInstances[++WEBAudio.audioInstanceIdCounter] = jsAudioCreateChannel(callback, userData);
  	return WEBAudio.audioInstanceIdCounter;
  }

  function _JS_Sound_GetLength(bufferInstance)
  {
  	if (WEBAudio.audioWebEnabled == 0)
  		return 0;
  
  	var soundClip = WEBAudio.audioInstances[bufferInstance];
  
  	if (!soundClip)
  		return 0;
  
  	return soundClip.getLength();
  }

  function _JS_Sound_GetLoadState(bufferInstance)
  {
  	if (WEBAudio.audioWebEnabled == 0)
  		return 2;
  
  	var sound = WEBAudio.audioInstances[bufferInstance];
  	if (sound.error)
  		return 2;
  	if (sound.buffer || sound.url)
  		return 0;
  	return 1;
  }

  function jsAudioPlayPendingBlockedAudio(soundId) {
  	var pendingAudio = WEBAudio.pendingAudioSources[soundId];
  	pendingAudio.sourceNode._startPlayback(pendingAudio.offset);
  	delete WEBAudio.pendingAudioSources[soundId];
  }
  function jsAudioPlayBlockedAudios() {
  	Object.keys(WEBAudio.pendingAudioSources).forEach(function (audioId) {
  		jsAudioPlayPendingBlockedAudio(audioId);
  	});
  }
  function _JS_Sound_Init() {
  	try {
  		window.AudioContext = window.AudioContext || window.webkitAudioContext;
  		WEBAudio.audioContext = new AudioContext();
  
  		var tryToResumeAudioContext = function () {
  			if (WEBAudio.audioContext.state === 'suspended')
  				WEBAudio.audioContext.resume().catch(function (error) {
  					console.warn("Could not resume audio context. Exception: " + error);
  				});
  			else
  				Module.clearInterval(resumeInterval);
  		};
  		var resumeInterval = Module.setInterval(tryToResumeAudioContext, 400);
  
  		WEBAudio.audioWebEnabled = 1;
  
  		// Safari has the restriction where Audio elements need to be created from a direct user event,
  		// even if the rest of the audio playback requirements is that a user event has happeend
  		// at some point previously. The AudioContext also needs to be resumed, if paused, from a
  		// direct user event. Catch user events here and use them to fill a cache of Audio
  		// elements to be used by the rest of the system.
  		var _userEventCallback = function () {
  			try {
  				// On Safari, resuming the audio context needs to happen from a user event.
  				// The AudioContext is suspended by default, and on iOS if the user switches tabs
  				// and comes back, it will be interrupted. Touching the page will resume audio
  				// playback.
  				if (WEBAudio.audioContext.state !== "running" && WEBAudio.audioContext.state !== "closed") {
  					WEBAudio.audioContext.resume().catch(function (error) {
  						console.warn("Could not resume audio context. Exception: " + error);
  					});
  				}
  
  				// Play blocked audio elements
  				jsAudioPlayBlockedAudios();
  
  				// How many audio elements should we cache? How many compressed audio channels might
  				// be played at a single time?
  				var audioCacheSize = 20;
  				while (WEBAudio.audioCache.length < audioCacheSize) {
  					var audio = new Audio();
  					audio.autoplay = false;
  					WEBAudio.audioCache.push(audio);
  				}
  			} catch (e) {
  				// Audio error, but don't need to notify here, they would have already been
  				// informed of audio errors.
  			}
  		};
  		window.addEventListener("mousedown", _userEventCallback);
  		window.addEventListener("touchstart", _userEventCallback);
  
  		// Make sure we release the event listeners when the app quits to avoid leaking memory.
  		Module.deinitializers.push(function () {
  			window.removeEventListener("mousedown", _userEventCallback);
  			window.removeEventListener("touchstart", _userEventCallback);
  		});
  	}
  	catch (e) {
  		alert('Web Audio API is not supported in this browser');
  	}
  }

  function jsAudioCreateUncompressedSoundClipFromCompressedAudio(audioData) {
  	var soundClip = jsAudioCreateUncompressedSoundClip(null, false);
  
  	WEBAudio.audioContext.decodeAudioData(
  		audioData,
  		function (_buffer) {
  			soundClip.buffer = _buffer;
  		},
  		function (_error) {
  			soundClip.error = true;
  			console.log("Decode error: " + _error);
  		}
  	);
  
  	return soundClip;
  }
  
  function jsAudioAddPendingBlockedAudio(sourceNode, offset) {
  	WEBAudio.pendingAudioSources[sourceNode.mediaElement.src] = {
  		sourceNode: sourceNode,
  		offset: offset
  	};
  }
  
  function jsAudioGetMimeTypeFromType(fmodSoundType) {
  	switch(fmodSoundType)
  	{
  		case 13: // FMOD_SOUND_TYPE_MPEG
  			return "audio/mpeg";
  		case 20: // FMOD_SOUND_TYPE_WAV
  			return "audio/wav";
  		default: // Fallback to mp4 audio file for other types or if not set (works on most browsers)
  			return "audio/mp4";
  	}
  }
  function jsAudioCreateCompressedSoundClip(audioData, fmodSoundType) {
  	var mimeType = jsAudioGetMimeTypeFromType(fmodSoundType);
  	var blob = new Blob([audioData], { type: mimeType });
  
  	var soundClip = {
  		url: URL.createObjectURL(blob),
  		error: false,
  		mediaElement: new Audio()
  	};
  
  	// An Audio element is created for the buffer so that we can access properties like duration
  	// in JS_Sound_GetLength, which knows about the buffer object, but not the channel object.
  	// This Audio element is used for metadata properties only, not for playback. Trying to play
  	// back this Audio element would cause an error on Safari because it's not created in a
  	// direct user event handler.
  	soundClip.mediaElement.preload = "metadata";
  	soundClip.mediaElement.src = soundClip.url;
  
  	/**
  	 * Release resources of a sound clip
  	 */
  	soundClip.release = function () {
  		if (!this.mediaElement) {
  			return;
  		}
  
  		this.mediaElement.src = "";
  		URL.revokeObjectURL(this.url);
  		delete this.mediaElement;
  		delete this.url;
  	}
  
  	/**
  	 * Get length of sound clip in number of samples
  	 * @returns {number}
  	 */
  	soundClip.getLength = function () {
  		// Convert duration (seconds) to number of samples.
  		return this.mediaElement.duration * 44100;
  	}
  	/**
  	 * Gets uncompressed audio data from sound clip.
  	 * If output buffer is smaller than the sound data only the first portion
  	 * of the sound data is read.
  	 * Sound clips with multiple channels will be stored one after the other.
  	 *
  	 * @param {number} ptr Pointer to the output buffer
  	 * @param {number} length Size of output buffer in bytes
  	 * @returns Size of data in bytes written to output buffer
  	 */
  	 soundClip.getData = function (ptr, length) {
  		console.warn("getData() is not supported for compressed sound.");
  
  		return 0;
  	}
  
  	/**
  	 * Gets number of channels of soundclip
  	 * @returns {number}
  	 */
  	soundClip.getNumberOfChannels = function () {
  		console.warn("getNumberOfChannels() is not supported for compressed sound.");
  
  		return 0;
  	}
  
  	/**
  	 * Gets sampling rate in Hz
  	 * @returns {number}
  	 */
  	soundClip.getFrequency = function () {
  		console.warn("getFrequency() is not supported for compressed sound.");
  
  		return 0;
  	}
  
  	/**
  	 * Create an audio source node
  	 * @returns {MediaElementAudioSourceNode}
  	 */
  	soundClip.createSourceNode = function () {
  		var self = this;
  		var mediaElement = WEBAudio.audioCache.length ? WEBAudio.audioCache.pop() : new Audio();;
  		mediaElement.preload = "metadata";
  		mediaElement.src = this.url;
  		var source = WEBAudio.audioContext.createMediaElementSource(mediaElement);
  
  		Object.defineProperty(source, "loop", {
  			get: function () {
  				return source.mediaElement.loop;
  			},
  			set: function (v) {
  				if (source.mediaElement.loop !== v) source.mediaElement.loop = v;
  			}
  		});
  
  		source.playbackRate = {};
  		Object.defineProperty(source.playbackRate, "value", {
  			get: function () {
  				return source.mediaElement.playbackRate;
  			},
  			set: function (v) {
  				if (source.mediaElement.playbackRate !== v) source.mediaElement.playbackRate = v;
  			}
  		});
  		Object.defineProperty(source, "currentTime", {
  			get: function () {
  				return source.mediaElement.currentTime;
  			},
  			set: function (v) {
  				if (source.mediaElement.currentTime !== v) source.mediaElement.currentTime = v;
  			}
  		});
  		Object.defineProperty(source, "mute", {
  			get: function () {
  				return source.mediaElement.mute;
  			},
  			set: function (v) {
  				if (source.mediaElement.mute !== v) source.mediaElement.mute = v;
  			}
  		});
  		Object.defineProperty(source, "onended", {
  			get: function () {
  				return source.mediaElement.onended;
  			},
  			set: function (onended) {
  				source.mediaElement.onended = onended;
  			}
  		});
  
  		source.playPromise = null;
  		source.playTimeout = null;
  		source.pauseRequested = false;
  		source.isStopped = false;
  
  		source._pauseMediaElement = function () {
  			// If there is a play request still pending, then pausing now would cause an
  			// error. Instead, mark that we want the audio paused as soon as it can be,
  			// which will be when the play promise resolves.
  			if (source.playPromise || source.playTimeout) {
  				source.pauseRequested = true;
  			} else {
  				// If there is no play request pending, we can pause immediately.
  				source.mediaElement.pause();
  			}
  		};
  
  		source._startPlayback = function (offset) {
  			if (source.playPromise || source.playTimeout) {
  				source.mediaElement.currentTime = offset;
  				source.pauseRequested = false;
  				return;
  			}
  
  			source.mediaElement.currentTime = offset;
  			source.playPromise = source.mediaElement.play();
  
  			if (source.playPromise) {
  				source.playPromise.then(function () {
  					// If a pause was requested between play() and the MediaElement actually
  					// starting, then pause it now.
  					if (source.pauseRequested) {
  						source.mediaElement.pause();
  						source.pauseRequested = false;
  					}
  					source.playPromise = null;
  				}).catch(function (error) {
  					source.playPromise = null;
  					if (error.name !== 'NotAllowedError')
  						throw error;
  
  					// Playing a media element may fail if there was no previous user interaction
  					// Retry playback when there was a user interaction
  					jsAudioAddPendingBlockedAudio(source, offset);
  				});
  			}
  		};
  
  		source.start = function (startTime, offset) {
  			if (typeof startTime === "undefined") {
  				startTime = WEBAudio.audioContext.currentTime;
  			}
  
  			if (typeof offset === "undefined") {
  				offset = 0.0;
  			}
  
  			// Compare startTime to WEBAudio context currentTime, and if
  			// startTime is more than about 4 msecs in the future, do a setTimeout() wait
  			// for the remaining duration, and only then play. 4 msecs boundary because
  			// setTimeout() is specced to throttle <= 4 msec waits if repeatedly called.
  			var startDelayThresholdMS = 4;
  			// Convert startTime and currentTime to milliseconds
  			var startDelayMS = (startTime - WEBAudio.audioContext.currentTime) * 1000;
  			if (startDelayMS > startDelayThresholdMS) {
  				source.playTimeout = setTimeout(function () {
  					source.playTimeout = null;
  					source._startPlayback(offset);
  				}, startDelayMS);
  			} else {
  				source._startPlayback(offset);
  			}
  		};
  
  		source.stop = function (stopTime) {
  			if (typeof stopTime === "undefined") {
  				stopTime = WEBAudio.audioContext.currentTime;
  			}
  
  			// Compare stopTime to WEBAudio context currentTime, and if
  			// stopTime is more than about 4 msecs in the future, do a setTimeout() wait
  			// for the remaining duration, and only then stop. 4 msecs boundary because
  			// setTimeout() is specced to throttle <= 4 msec waits if repeatedly called.
  			var stopDelayThresholdMS = 4;
  			// Convert startTime and currentTime to milliseconds
  			var stopDelayMS = (stopTime - WEBAudio.audioContext.currentTime) * 1000;
  
  			if (stopDelayMS > stopDelayThresholdMS) {
  				setTimeout(function () {
  					source._pauseMediaElement();
  					source.isStopped = true;
  				}, stopDelayMS);
  			} else {
  				source._pauseMediaElement();
  				source.isStopped = true;
  			}
  		};
  
  		jsAudioMixinSetPitch(source);
  
  		return source;
  	}
  
  	return soundClip;
  }
  function _JS_Sound_Load(ptr, length, decompress, fmodSoundType) {
  	if (WEBAudio.audioWebEnabled == 0)
  		return 0;
  
  	var audioData = HEAPU8.buffer.slice(ptr, ptr + length);
  
  	// We don't ever want to play back really small audio clips as compressed, the compressor has a startup CPU cost,
  	// and replaying the same audio clip multiple times (either individually or when looping) has an unwanted CPU
  	// overhead if the same data will be decompressed on demand again and again. Hence we want to play back small
  	// audio files always as fully uncompressed in memory.
  
  	// However this will be a memory usage tradeoff.
  
  	// Tests with aac audio sizes in a .m4a container shows:
  	// 2.11MB stereo 44.1kHz .m4a file containing 90 seconds of 196kbps aac audio decompresses to 30.3MB of float32 PCM data. (~14.3x size increase)
  	// 721KB stereo 44.1kHz .m4a file 29 seconds of 196kbps aac audio decompresses to 10.0MB of float32 PCM data. (~14x size increase)
  	// 6.07KB mono 44.1kHZ .m4a file containing 1 second of 101kbps aac audio decompresses to 72kB of float32 PCM data. (~11x size increase)
  	// -> overall AAC compression factor is ~10x-15x.
  
  	// Based on above, take 128KB as a cutoff size: if we have a .m4a clip that is smaller than this,
  	// we always uncompress it up front, receiving at most ~1.8MB of raw audio data, which can hold about ~10 seconds of mono audio.
  	// In other words, heuristically all audio clips <= mono ~10 seconds (5 seconds if stereo) in duration will be always fully uncompressed in memory.
  	if (length < 131072) decompress = 1;
  
  	var sound;
  	if (decompress) {
  		sound = jsAudioCreateUncompressedSoundClipFromCompressedAudio(audioData);
  	} else {
  		sound = jsAudioCreateCompressedSoundClip(audioData, fmodSoundType);
  	}
  
  	WEBAudio.audioInstances[++WEBAudio.audioInstanceIdCounter] = sound;
  
  	return WEBAudio.audioInstanceIdCounter;
  }

  function jsAudioCreateUncompressedSoundClipFromPCM(channels, length, sampleRate, ptr) {
  	var buffer = WEBAudio.audioContext.createBuffer(channels, length, sampleRate);
  
  	// Copy audio data to buffer
  	for (var i = 0; i < channels; i++) {
  		var offs = (ptr >> 2) + length * i;
  		var copyToChannel = buffer['copyToChannel'] || function (source, channelNumber, startInChannel) {
  			// Shim for copyToChannel on browsers which don't support it like Safari.
  			var clipped = source.subarray(0, Math.min(source.length, this.length - (startInChannel | 0)));
  			this.getChannelData(channelNumber | 0).set(clipped, startInChannel | 0);
  		};
  		copyToChannel.apply(buffer, [HEAPF32.subarray(offs, offs + length), i, 0]);
  	}
  
  	return jsAudioCreateUncompressedSoundClip(buffer, false);
  }
  function _JS_Sound_Load_PCM(channels, length, sampleRate, ptr) {
  	if (WEBAudio.audioWebEnabled == 0)
  		return 0;
  
  	var sound = jsAudioCreateUncompressedSoundClipFromPCM(channels, length, sampleRate, ptr);
  
  	WEBAudio.audioInstances[++WEBAudio.audioInstanceIdCounter] = sound;
  	return WEBAudio.audioInstanceIdCounter;
  }

  function _JS_Sound_Play(bufferInstance, channelInstance, offset, delay)
  {
  	if (WEBAudio.audioWebEnabled == 0)
  		return;
  
  	// stop sound clip which is currently playing in the channel.
  	_JS_Sound_Stop(channelInstance, 0);
  
  	var soundClip = WEBAudio.audioInstances[bufferInstance];
  	var channel = WEBAudio.audioInstances[channelInstance];
  
  	if (!soundClip) {
  		console.log("Trying to play sound which is not loaded.");
  		return;
  	}
  
  	try {
  		channel.playSoundClip(soundClip, WEBAudio.audioContext.currentTime + delay, offset);
  	} catch (error) {
  		console.error("playSoundClip error. Exception: " + e);
  	}
  }

  function _JS_Sound_ReleaseInstance(instance) {
  	var object = WEBAudio.audioInstances[instance];
  	if (object) {
  		object.release();
  	}
  
  	// Let the GC free up the audio object.
  	delete WEBAudio.audioInstances[instance];
  }

  function _JS_Sound_ResumeIfNeeded()
  {
  	if (WEBAudio.audioWebEnabled == 0)
  		return;
  
  	if (WEBAudio.audioContext.state === 'suspended')
  		WEBAudio.audioContext.resume().catch(function (error) {
  			console.warn("Could not resume audio context. Exception: " + error);
  		});
  
  }

  function _JS_Sound_Set3D(channelInstance, threeD)
  {
  	var channel = WEBAudio.audioInstances[channelInstance];
  	channel.set3D(threeD);
  }

  function _JS_Sound_SetListenerOrientation(x, y, z, xUp, yUp, zUp)
  {
  	if (WEBAudio.audioWebEnabled == 0)
  		return;
  
  	// Web Audio uses a RHS coordinate system, Unity uses LHS, causing orientations to be flipped.
  	// So we pass a negative direction here to compensate, otherwise channels will be flipped.
  	x = -x;
  	y = -y;
  	z = -z;
  
  	var l = WEBAudio.audioContext.listener;
  
  	// Do not re-set same values here if the orientation has not changed. This avoid unpredictable performance issues in Chrome
  	// and Safari Web Audio implementations.
  	if (l.forwardX) {
  		// Use new properties if they exist ...
  		if (l.forwardX.value !== x) l.forwardX.value = x;
  		if (l.forwardY.value !== y) l.forwardY.value = y;
  		if (l.forwardZ.value !== z) l.forwardZ.value = z;
  
  		if (l.upX.value !== xUp) l.upX.value = xUp;
  		if (l.upY.value !== yUp) l.upY.value = yUp;
  		if (l.upZ.value !== zUp) l.upZ.value = zUp;
  	} else if (l._forwardX !== x || l._forwardY !== y || l._forwardZ !== z || l._upX !== xUp || l._upY !== yUp || l._upZ !== zUp) {
  		// ... and old deprecated setOrientation if new properties are not supported.
  		l.setOrientation(x, y, z, xUp, yUp, zUp);
  		l._forwardX = x;
  		l._forwardY = y;
  		l._forwardZ = z;
  		l._upX = xUp;
  		l._upY = yUp;
  		l._upZ = zUp;
  	}
  }

  function _JS_Sound_SetListenerPosition(x, y, z)
  {
  	if (WEBAudio.audioWebEnabled == 0)
  		return;
  
  	var l = WEBAudio.audioContext.listener;
  
  	// Do not re-set same values here if the orientation has not changed. This avoid unpredictable performance issues in Chrome
  	// and Safari Web Audio implementations.
  	if (l.positionX) {
  		// Use new properties if they exist ...
  		if (l.positionX.value !== x) l.positionX.value = x;
  		if (l.positionY.value !== y) l.positionY.value = y;
  		if (l.positionZ.value !== z) l.positionZ.value = z;
  	} else if (l._positionX !== x || l._positionY !== y || l._positionZ !== z) {
  		// ... and old deprecated setPosition if new properties are not supported.
  		l.setPosition(x, y, z);
  		l._positionX = x;
  		l._positionY = y;
  		l._positionZ = z;
  	}
  }

  function _JS_Sound_SetLoop(channelInstance, loop)
  {
  	if (WEBAudio.audioWebEnabled == 0)
  		return;
  
  	var channel = WEBAudio.audioInstances[channelInstance];
  	channel.setLoop(loop);
  }

  function _JS_Sound_SetLoopPoints(channelInstance, loopStart, loopEnd)
  {
  	if (WEBAudio.audioWebEnabled == 0)
  		return;
  	var channel = WEBAudio.audioInstances[channelInstance];
  	channel.setLoopPoints(loopStart, loopEnd);
  }

  function _JS_Sound_SetPaused(channelInstance, paused)
  {
  	if (WEBAudio.audioWebEnabled == 0)
  		return;
  	var channel = WEBAudio.audioInstances[channelInstance];
  	if (paused != channel.isPaused()) {
  		if (paused) channel.pause();
  		else channel.resume();
  	}
  }

  function _JS_Sound_SetPitch(channelInstance, v)
  {
  	if (WEBAudio.audioWebEnabled == 0)
  		return;
  
  	try {
  		var channel = WEBAudio.audioInstances[channelInstance];
  		channel.setPitch(v);
  	} catch (e) {
  		console.error('JS_Sound_SetPitch(channel=' + channelInstance + ', pitch=' + v + ') threw an exception: ' + e);
  	}
  }

  function _JS_Sound_SetPosition(channelInstance, x, y, z)
  {
  	if (WEBAudio.audioWebEnabled == 0)
  		return;
  
  	var channel = WEBAudio.audioInstances[channelInstance];
  	channel.setPosition(x, y, z);
  }

  function _JS_Sound_SetVolume(channelInstance, v)
  {
  	if (WEBAudio.audioWebEnabled == 0)
  		return;
  
  	try {
  		var channel = WEBAudio.audioInstances[channelInstance];
  		channel.setVolume(v);
  	} catch (e) {
  		console.error('JS_Sound_SetVolume(channel=' + channelInstance + ', volume=' + v + ') threw an exception: ' + e);
  	}
  }

  function _JS_Sound_Stop(channelInstance, delay)
  {
  	if (WEBAudio.audioWebEnabled == 0)
  		return;
  
  	var channel = WEBAudio.audioInstances[channelInstance];
  	channel.stop(delay);
  }

  function _JS_SystemInfo_GetCanvasClientSize(domElementSelector, outWidth, outHeight)
  	{
  		var selector = UTF8ToString(domElementSelector);
  		var canvas = (selector == '#canvas') ? Module['canvas'] : document.querySelector(selector);
  		var w = 0, h = 0;
  		if (canvas) {
  			var size = canvas.getBoundingClientRect();
  			w = size.width;
  			h = size.height;
  		}
  		HEAPF64[outWidth >> 3] = w;
  		HEAPF64[outHeight >> 3] = h;
  	}

  function _JS_SystemInfo_GetDocumentURL(buffer, bufferSize) 
  	{
  		if (buffer)
  			stringToUTF8(document.URL, buffer, bufferSize);
  		return lengthBytesUTF8(document.URL);
  	}

  function _JS_SystemInfo_GetGPUInfo(buffer, bufferSize)
  	{
  		var gpuinfo = Module.SystemInfo.gpu;
  		if (buffer)
  			stringToUTF8(gpuinfo, buffer, bufferSize);
  		return lengthBytesUTF8(gpuinfo);
  	}

  function _JS_SystemInfo_GetMatchWebGLToCanvasSize()
  	{
  		// If matchWebGLToCanvasSize is not present, it is
  		// same as true, to keep backwards compatibility with user page templates
  		// that are not setting this field.
  		return Module.matchWebGLToCanvasSize || Module.matchWebGLToCanvasSize === undefined;
  	}

  function _JS_SystemInfo_GetMemory() 
  	{
  		return HEAPU8.length/(1024*1024);
  	}

  function _JS_SystemInfo_GetOS(buffer, bufferSize) 
  	{
  		var browser = Module.SystemInfo.os + " " + Module.SystemInfo.osVersion;
  		if (buffer)
  			stringToUTF8(browser, buffer, bufferSize);
  		return lengthBytesUTF8(browser);
  	}

  function _JS_SystemInfo_GetPreferredDevicePixelRatio()
  	{
  		return Module.matchWebGLToCanvasSize == false ? 1 : Module.devicePixelRatio || window.devicePixelRatio || 1;
  	}

  function _JS_SystemInfo_GetScreenSize(outWidth, outHeight)
  	{
  		HEAPF64[outWidth >> 3] = Module.SystemInfo.width;
  		HEAPF64[outHeight >> 3] = Module.SystemInfo.height;
  	}

  function _JS_SystemInfo_HasAstcHdr()
      {
        var ext = GLctx.getExtension('WEBGL_compressed_texture_astc');
        if (ext && ext.getSupportedProfiles) {
          return ext.getSupportedProfiles().includes("hdr");
        }
        return false;
      }

  function _JS_SystemInfo_HasCursorLock() 
  	{
  		return Module.SystemInfo.hasCursorLock;
  	}

  function _JS_SystemInfo_HasFullscreen() 
  	{
  		return Module.SystemInfo.hasFullscreen;
  	}

  function _JS_SystemInfo_HasWebGL() 
  	{
  		return Module.SystemInfo.hasWebGL;
  	}

  function _JS_UnityEngineShouldQuit() {
  	return !!Module.shouldQuit;
  }

  function ___assert_fail(condition, filename, line, func) {
      abort('Assertion failed: ' + UTF8ToString(condition) + ', at: ' + [filename ? UTF8ToString(filename) : 'unknown filename', line, func ? UTF8ToString(func) : 'unknown function']);
    }

  function ___cxa_allocate_exception(size) {
      // Thrown object is prepended by exception metadata block
      return _malloc(size + 16) + 16;
    }

  /** @constructor */
  function ExceptionInfo(excPtr) {
      this.excPtr = excPtr;
      this.ptr = excPtr - 16;
  
      this.set_type = function(type) {
        HEAP32[(((this.ptr)+(4))>>2)] = type;
      };
  
      this.get_type = function() {
        return HEAP32[(((this.ptr)+(4))>>2)];
      };
  
      this.set_destructor = function(destructor) {
        HEAP32[(((this.ptr)+(8))>>2)] = destructor;
      };
  
      this.get_destructor = function() {
        return HEAP32[(((this.ptr)+(8))>>2)];
      };
  
      this.set_refcount = function(refcount) {
        HEAP32[((this.ptr)>>2)] = refcount;
      };
  
      this.set_caught = function (caught) {
        caught = caught ? 1 : 0;
        HEAP8[(((this.ptr)+(12))>>0)] = caught;
      };
  
      this.get_caught = function () {
        return HEAP8[(((this.ptr)+(12))>>0)] != 0;
      };
  
      this.set_rethrown = function (rethrown) {
        rethrown = rethrown ? 1 : 0;
        HEAP8[(((this.ptr)+(13))>>0)] = rethrown;
      };
  
      this.get_rethrown = function () {
        return HEAP8[(((this.ptr)+(13))>>0)] != 0;
      };
  
      // Initialize native structure fields. Should be called once after allocated.
      this.init = function(type, destructor) {
        this.set_type(type);
        this.set_destructor(destructor);
        this.set_refcount(0);
        this.set_caught(false);
        this.set_rethrown(false);
      }
  
      this.add_ref = function() {
        var value = HEAP32[((this.ptr)>>2)];
        HEAP32[((this.ptr)>>2)] = value + 1;
      };
  
      // Returns true if last reference released.
      this.release_ref = function() {
        var prev = HEAP32[((this.ptr)>>2)];
        HEAP32[((this.ptr)>>2)] = prev - 1;
        assert(prev > 0);
        return prev === 1;
      };
    }
  
    /**
     * @constructor
     * @param {number=} ptr
     */
  function CatchInfo(ptr) {
  
      this.free = function() {
        _free(this.ptr);
        this.ptr = 0;
      };
  
      this.set_base_ptr = function(basePtr) {
        HEAP32[((this.ptr)>>2)] = basePtr;
      };
  
      this.get_base_ptr = function() {
        return HEAP32[((this.ptr)>>2)];
      };
  
      this.set_adjusted_ptr = function(adjustedPtr) {
        HEAP32[(((this.ptr)+(4))>>2)] = adjustedPtr;
      };
  
      this.get_adjusted_ptr_addr = function() {
        return this.ptr + 4;
      }
  
      this.get_adjusted_ptr = function() {
        return HEAP32[(((this.ptr)+(4))>>2)];
      };
  
      // Get pointer which is expected to be received by catch clause in C++ code. It may be adjusted
      // when the pointer is casted to some of the exception object base classes (e.g. when virtual
      // inheritance is used). When a pointer is thrown this method should return the thrown pointer
      // itself.
      this.get_exception_ptr = function() {
        // Work around a fastcomp bug, this code is still included for some reason in a build without
        // exceptions support.
        var isPointer = ___cxa_is_pointer_type(
          this.get_exception_info().get_type());
        if (isPointer) {
          return HEAP32[((this.get_base_ptr())>>2)];
        }
        var adjusted = this.get_adjusted_ptr();
        if (adjusted !== 0) return adjusted;
        return this.get_base_ptr();
      };
  
      this.get_exception_info = function() {
        return new ExceptionInfo(this.get_base_ptr());
      };
  
      if (ptr === undefined) {
        this.ptr = _malloc(8);
        this.set_adjusted_ptr(0);
      } else {
        this.ptr = ptr;
      }
    }
  
  var exceptionCaught =  [];
  
  function exception_addRef(info) {
      info.add_ref();
    }
  
  var uncaughtExceptionCount = 0;
  function ___cxa_begin_catch(ptr) {
      var catchInfo = new CatchInfo(ptr);
      var info = catchInfo.get_exception_info();
      if (!info.get_caught()) {
        info.set_caught(true);
        uncaughtExceptionCount--;
      }
      info.set_rethrown(false);
      exceptionCaught.push(catchInfo);
      exception_addRef(info);
      return catchInfo.get_exception_ptr();
    }

  var exceptionLast = 0;
  
  function ___cxa_free_exception(ptr) {
      try {
        return _free(new ExceptionInfo(ptr).ptr);
      } catch(e) {
        err('exception during cxa_free_exception: ' + e);
      }
    }
  function exception_decRef(info) {
      // A rethrown exception can reach refcount 0; it must not be discarded
      // Its next handler will clear the rethrown flag and addRef it, prior to
      // final decRef and destruction here
      if (info.release_ref() && !info.get_rethrown()) {
        var destructor = info.get_destructor();
        if (destructor) {
          // In Wasm, destructors return 'this' as in ARM
          (function(a1) { return dynCall_ii.apply(null, [destructor, a1]); })(info.excPtr);
        }
        ___cxa_free_exception(info.excPtr);
      }
    }
  function ___cxa_end_catch() {
      // Clear state flag.
      _setThrew(0);
      assert(exceptionCaught.length > 0);
      // Call destructor if one is registered then clear it.
      var catchInfo = exceptionCaught.pop();
  
      exception_decRef(catchInfo.get_exception_info());
      catchInfo.free();
      exceptionLast = 0; // XXX in decRef?
    }

  function ___resumeException(catchInfoPtr) {
      var catchInfo = new CatchInfo(catchInfoPtr);
      var ptr = catchInfo.get_base_ptr();
      if (!exceptionLast) { exceptionLast = ptr; }
      catchInfo.free();
      throw ptr;
    }
  function ___cxa_find_matching_catch_2() {
      var thrown = exceptionLast;
      if (!thrown) {
        // just pass through the null ptr
        setTempRet0(0); return ((0)|0);
      }
      var info = new ExceptionInfo(thrown);
      var thrownType = info.get_type();
      var catchInfo = new CatchInfo();
      catchInfo.set_base_ptr(thrown);
      catchInfo.set_adjusted_ptr(thrown);
      if (!thrownType) {
        // just pass through the thrown ptr
        setTempRet0(0); return ((catchInfo.ptr)|0);
      }
      var typeArray = Array.prototype.slice.call(arguments);
  
      // can_catch receives a **, add indirection
      // The different catch blocks are denoted by different types.
      // Due to inheritance, those types may not precisely match the
      // type of the thrown object. Find one which matches, and
      // return the type of the catch block which should be called.
      for (var i = 0; i < typeArray.length; i++) {
        var caughtType = typeArray[i];
        if (caughtType === 0 || caughtType === thrownType) {
          // Catch all clause matched or exactly the same type is caught
          break;
        }
        if (___cxa_can_catch(caughtType, thrownType, catchInfo.get_adjusted_ptr_addr())) {
          setTempRet0(caughtType); return ((catchInfo.ptr)|0);
        }
      }
      setTempRet0(thrownType); return ((catchInfo.ptr)|0);
    }

  function ___cxa_find_matching_catch_3() {
      var thrown = exceptionLast;
      if (!thrown) {
        // just pass through the null ptr
        setTempRet0(0); return ((0)|0);
      }
      var info = new ExceptionInfo(thrown);
      var thrownType = info.get_type();
      var catchInfo = new CatchInfo();
      catchInfo.set_base_ptr(thrown);
      catchInfo.set_adjusted_ptr(thrown);
      if (!thrownType) {
        // just pass through the thrown ptr
        setTempRet0(0); return ((catchInfo.ptr)|0);
      }
      var typeArray = Array.prototype.slice.call(arguments);
  
      // can_catch receives a **, add indirection
      // The different catch blocks are denoted by different types.
      // Due to inheritance, those types may not precisely match the
      // type of the thrown object. Find one which matches, and
      // return the type of the catch block which should be called.
      for (var i = 0; i < typeArray.length; i++) {
        var caughtType = typeArray[i];
        if (caughtType === 0 || caughtType === thrownType) {
          // Catch all clause matched or exactly the same type is caught
          break;
        }
        if (___cxa_can_catch(caughtType, thrownType, catchInfo.get_adjusted_ptr_addr())) {
          setTempRet0(caughtType); return ((catchInfo.ptr)|0);
        }
      }
      setTempRet0(thrownType); return ((catchInfo.ptr)|0);
    }

  function ___cxa_find_matching_catch_4() {
      var thrown = exceptionLast;
      if (!thrown) {
        // just pass through the null ptr
        setTempRet0(0); return ((0)|0);
      }
      var info = new ExceptionInfo(thrown);
      var thrownType = info.get_type();
      var catchInfo = new CatchInfo();
      catchInfo.set_base_ptr(thrown);
      catchInfo.set_adjusted_ptr(thrown);
      if (!thrownType) {
        // just pass through the thrown ptr
        setTempRet0(0); return ((catchInfo.ptr)|0);
      }
      var typeArray = Array.prototype.slice.call(arguments);
  
      // can_catch receives a **, add indirection
      // The different catch blocks are denoted by different types.
      // Due to inheritance, those types may not precisely match the
      // type of the thrown object. Find one which matches, and
      // return the type of the catch block which should be called.
      for (var i = 0; i < typeArray.length; i++) {
        var caughtType = typeArray[i];
        if (caughtType === 0 || caughtType === thrownType) {
          // Catch all clause matched or exactly the same type is caught
          break;
        }
        if (___cxa_can_catch(caughtType, thrownType, catchInfo.get_adjusted_ptr_addr())) {
          setTempRet0(caughtType); return ((catchInfo.ptr)|0);
        }
      }
      setTempRet0(thrownType); return ((catchInfo.ptr)|0);
    }


  function ___cxa_rethrow() {
      var catchInfo = exceptionCaught.pop();
      if (!catchInfo) {
        abort('no exception to throw');
      }
      var info = catchInfo.get_exception_info();
      var ptr = catchInfo.get_base_ptr();
      if (!info.get_rethrown()) {
        // Only pop if the corresponding push was through rethrow_primary_exception
        exceptionCaught.push(catchInfo);
        info.set_rethrown(true);
        info.set_caught(false);
        uncaughtExceptionCount++;
      } else {
        catchInfo.free();
      }
      exceptionLast = ptr;
      throw ptr;
    }

  function ___cxa_throw(ptr, type, destructor) {
      var info = new ExceptionInfo(ptr);
      // Initialize ExceptionInfo content after it was allocated in __cxa_allocate_exception.
      info.init(type, destructor);
      exceptionLast = ptr;
      uncaughtExceptionCount++;
      throw ptr;
    }


  var PATH = {splitPath:function(filename) {
        var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
        return splitPathRe.exec(filename).slice(1);
      },normalizeArray:function(parts, allowAboveRoot) {
        // if the path tries to go above the root, `up` ends up > 0
        var up = 0;
        for (var i = parts.length - 1; i >= 0; i--) {
          var last = parts[i];
          if (last === '.') {
            parts.splice(i, 1);
          } else if (last === '..') {
            parts.splice(i, 1);
            up++;
          } else if (up) {
            parts.splice(i, 1);
            up--;
          }
        }
        // if the path is allowed to go above the root, restore leading ..s
        if (allowAboveRoot) {
          for (; up; up--) {
            parts.unshift('..');
          }
        }
        return parts;
      },normalize:function(path) {
        var isAbsolute = path.charAt(0) === '/',
            trailingSlash = path.substr(-1) === '/';
        // Normalize the path
        path = PATH.normalizeArray(path.split('/').filter(function(p) {
          return !!p;
        }), !isAbsolute).join('/');
        if (!path && !isAbsolute) {
          path = '.';
        }
        if (path && trailingSlash) {
          path += '/';
        }
        return (isAbsolute ? '/' : '') + path;
      },dirname:function(path) {
        var result = PATH.splitPath(path),
            root = result[0],
            dir = result[1];
        if (!root && !dir) {
          // No dirname whatsoever
          return '.';
        }
        if (dir) {
          // It has a dirname, strip trailing slash
          dir = dir.substr(0, dir.length - 1);
        }
        return root + dir;
      },basename:function(path) {
        // EMSCRIPTEN return '/'' for '/', not an empty string
        if (path === '/') return '/';
        path = PATH.normalize(path);
        path = path.replace(/\/$/, "");
        var lastSlash = path.lastIndexOf('/');
        if (lastSlash === -1) return path;
        return path.substr(lastSlash+1);
      },extname:function(path) {
        return PATH.splitPath(path)[3];
      },join:function() {
        var paths = Array.prototype.slice.call(arguments, 0);
        return PATH.normalize(paths.join('/'));
      },join2:function(l, r) {
        return PATH.normalize(l + '/' + r);
      }};
  
  function getRandomDevice() {
      if (typeof crypto == 'object' && typeof crypto['getRandomValues'] == 'function') {
        // for modern web browsers
        var randomBuffer = new Uint8Array(1);
        return function() { crypto.getRandomValues(randomBuffer); return randomBuffer[0]; };
      } else
      if (ENVIRONMENT_IS_NODE) {
        // for nodejs with or without crypto support included
        try {
          var crypto_module = require('crypto');
          // nodejs has crypto support
          return function() { return crypto_module['randomBytes'](1)[0]; };
        } catch (e) {
          // nodejs doesn't have crypto support
        }
      }
      // we couldn't find a proper implementation, as Math.random() is not suitable for /dev/random, see emscripten-core/emscripten/pull/7096
      return function() { abort("no cryptographic support found for randomDevice. consider polyfilling it if you want to use something insecure like Math.random(), e.g. put this in a --pre-js: var crypto = { getRandomValues: function(array) { for (var i = 0; i < array.length; i++) array[i] = (Math.random()*256)|0 } };"); };
    }
  
  var PATH_FS = {resolve:function() {
        var resolvedPath = '',
          resolvedAbsolute = false;
        for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
          var path = (i >= 0) ? arguments[i] : FS.cwd();
          // Skip empty and invalid entries
          if (typeof path != 'string') {
            throw new TypeError('Arguments to path.resolve must be strings');
          } else if (!path) {
            return ''; // an invalid portion invalidates the whole thing
          }
          resolvedPath = path + '/' + resolvedPath;
          resolvedAbsolute = path.charAt(0) === '/';
        }
        // At this point the path should be resolved to a full absolute path, but
        // handle relative paths to be safe (might happen when process.cwd() fails)
        resolvedPath = PATH.normalizeArray(resolvedPath.split('/').filter(function(p) {
          return !!p;
        }), !resolvedAbsolute).join('/');
        return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
      },relative:function(from, to) {
        from = PATH_FS.resolve(from).substr(1);
        to = PATH_FS.resolve(to).substr(1);
        function trim(arr) {
          var start = 0;
          for (; start < arr.length; start++) {
            if (arr[start] !== '') break;
          }
          var end = arr.length - 1;
          for (; end >= 0; end--) {
            if (arr[end] !== '') break;
          }
          if (start > end) return [];
          return arr.slice(start, end - start + 1);
        }
        var fromParts = trim(from.split('/'));
        var toParts = trim(to.split('/'));
        var length = Math.min(fromParts.length, toParts.length);
        var samePartsLength = length;
        for (var i = 0; i < length; i++) {
          if (fromParts[i] !== toParts[i]) {
            samePartsLength = i;
            break;
          }
        }
        var outputParts = [];
        for (var i = samePartsLength; i < fromParts.length; i++) {
          outputParts.push('..');
        }
        outputParts = outputParts.concat(toParts.slice(samePartsLength));
        return outputParts.join('/');
      }};
  
  var TTY = {ttys:[],init:function () {
        // https://github.com/emscripten-core/emscripten/pull/1555
        // if (ENVIRONMENT_IS_NODE) {
        //   // currently, FS.init does not distinguish if process.stdin is a file or TTY
        //   // device, it always assumes it's a TTY device. because of this, we're forcing
        //   // process.stdin to UTF8 encoding to at least make stdin reading compatible
        //   // with text files until FS.init can be refactored.
        //   process['stdin']['setEncoding']('utf8');
        // }
      },shutdown:function() {
        // https://github.com/emscripten-core/emscripten/pull/1555
        // if (ENVIRONMENT_IS_NODE) {
        //   // inolen: any idea as to why node -e 'process.stdin.read()' wouldn't exit immediately (with process.stdin being a tty)?
        //   // isaacs: because now it's reading from the stream, you've expressed interest in it, so that read() kicks off a _read() which creates a ReadReq operation
        //   // inolen: I thought read() in that case was a synchronous operation that just grabbed some amount of buffered data if it exists?
        //   // isaacs: it is. but it also triggers a _read() call, which calls readStart() on the handle
        //   // isaacs: do process.stdin.pause() and i'd think it'd probably close the pending call
        //   process['stdin']['pause']();
        // }
      },register:function(dev, ops) {
        TTY.ttys[dev] = { input: [], output: [], ops: ops };
        FS.registerDevice(dev, TTY.stream_ops);
      },stream_ops:{open:function(stream) {
          var tty = TTY.ttys[stream.node.rdev];
          if (!tty) {
            throw new FS.ErrnoError(43);
          }
          stream.tty = tty;
          stream.seekable = false;
        },close:function(stream) {
          // flush any pending line data
          stream.tty.ops.flush(stream.tty);
        },flush:function(stream) {
          stream.tty.ops.flush(stream.tty);
        },read:function(stream, buffer, offset, length, pos /* ignored */) {
          if (!stream.tty || !stream.tty.ops.get_char) {
            throw new FS.ErrnoError(60);
          }
          var bytesRead = 0;
          for (var i = 0; i < length; i++) {
            var result;
            try {
              result = stream.tty.ops.get_char(stream.tty);
            } catch (e) {
              throw new FS.ErrnoError(29);
            }
            if (result === undefined && bytesRead === 0) {
              throw new FS.ErrnoError(6);
            }
            if (result === null || result === undefined) break;
            bytesRead++;
            buffer[offset+i] = result;
          }
          if (bytesRead) {
            stream.node.timestamp = Date.now();
          }
          return bytesRead;
        },write:function(stream, buffer, offset, length, pos) {
          if (!stream.tty || !stream.tty.ops.put_char) {
            throw new FS.ErrnoError(60);
          }
          try {
            for (var i = 0; i < length; i++) {
              stream.tty.ops.put_char(stream.tty, buffer[offset+i]);
            }
          } catch (e) {
            throw new FS.ErrnoError(29);
          }
          if (length) {
            stream.node.timestamp = Date.now();
          }
          return i;
        }},default_tty_ops:{get_char:function(tty) {
          if (!tty.input.length) {
            var result = null;
            if (ENVIRONMENT_IS_NODE) {
              // we will read data by chunks of BUFSIZE
              var BUFSIZE = 256;
              var buf = Buffer.alloc(BUFSIZE);
              var bytesRead = 0;
  
              try {
                bytesRead = fs.readSync(process.stdin.fd, buf, 0, BUFSIZE, -1);
              } catch(e) {
                // Cross-platform differences: on Windows, reading EOF throws an exception, but on other OSes,
                // reading EOF returns 0. Uniformize behavior by treating the EOF exception to return 0.
                if (e.toString().includes('EOF')) bytesRead = 0;
                else throw e;
              }
  
              if (bytesRead > 0) {
                result = buf.slice(0, bytesRead).toString('utf-8');
              } else {
                result = null;
              }
            } else
            if (typeof window != 'undefined' &&
              typeof window.prompt == 'function') {
              // Browser.
              result = window.prompt('Input: ');  // returns null on cancel
              if (result !== null) {
                result += '\n';
              }
            } else if (typeof readline == 'function') {
              // Command line.
              result = readline();
              if (result !== null) {
                result += '\n';
              }
            }
            if (!result) {
              return null;
            }
            tty.input = intArrayFromString(result, true);
          }
          return tty.input.shift();
        },put_char:function(tty, val) {
          if (val === null || val === 10) {
            out(UTF8ArrayToString(tty.output, 0));
            tty.output = [];
          } else {
            if (val != 0) tty.output.push(val); // val == 0 would cut text output off in the middle.
          }
        },flush:function(tty) {
          if (tty.output && tty.output.length > 0) {
            out(UTF8ArrayToString(tty.output, 0));
            tty.output = [];
          }
        }},default_tty1_ops:{put_char:function(tty, val) {
          if (val === null || val === 10) {
            err(UTF8ArrayToString(tty.output, 0));
            tty.output = [];
          } else {
            if (val != 0) tty.output.push(val);
          }
        },flush:function(tty) {
          if (tty.output && tty.output.length > 0) {
            err(UTF8ArrayToString(tty.output, 0));
            tty.output = [];
          }
        }}};
  
  function zeroMemory(address, size) {
      HEAPU8.fill(0, address, address + size);
    }
  
  function alignMemory(size, alignment) {
      assert(alignment, "alignment argument is required");
      return Math.ceil(size / alignment) * alignment;
    }
  function mmapAlloc(size) {
      size = alignMemory(size, 65536);
      var ptr = _emscripten_builtin_memalign(65536, size);
      if (!ptr) return 0;
      zeroMemory(ptr, size);
      return ptr;
    }
  var MEMFS = {ops_table:null,mount:function(mount) {
        return MEMFS.createNode(null, '/', 16384 | 511 /* 0777 */, 0);
      },createNode:function(parent, name, mode, dev) {
        if (FS.isBlkdev(mode) || FS.isFIFO(mode)) {
          // no supported
          throw new FS.ErrnoError(63);
        }
        if (!MEMFS.ops_table) {
          MEMFS.ops_table = {
            dir: {
              node: {
                getattr: MEMFS.node_ops.getattr,
                setattr: MEMFS.node_ops.setattr,
                lookup: MEMFS.node_ops.lookup,
                mknod: MEMFS.node_ops.mknod,
                rename: MEMFS.node_ops.rename,
                unlink: MEMFS.node_ops.unlink,
                rmdir: MEMFS.node_ops.rmdir,
                readdir: MEMFS.node_ops.readdir,
                symlink: MEMFS.node_ops.symlink
              },
              stream: {
                llseek: MEMFS.stream_ops.llseek
              }
            },
            file: {
              node: {
                getattr: MEMFS.node_ops.getattr,
                setattr: MEMFS.node_ops.setattr
              },
              stream: {
                llseek: MEMFS.stream_ops.llseek,
                read: MEMFS.stream_ops.read,
                write: MEMFS.stream_ops.write,
                allocate: MEMFS.stream_ops.allocate,
                mmap: MEMFS.stream_ops.mmap,
                msync: MEMFS.stream_ops.msync
              }
            },
            link: {
              node: {
                getattr: MEMFS.node_ops.getattr,
                setattr: MEMFS.node_ops.setattr,
                readlink: MEMFS.node_ops.readlink
              },
              stream: {}
            },
            chrdev: {
              node: {
                getattr: MEMFS.node_ops.getattr,
                setattr: MEMFS.node_ops.setattr
              },
              stream: FS.chrdev_stream_ops
            }
          };
        }
        var node = FS.createNode(parent, name, mode, dev);
        if (FS.isDir(node.mode)) {
          node.node_ops = MEMFS.ops_table.dir.node;
          node.stream_ops = MEMFS.ops_table.dir.stream;
          node.contents = {};
        } else if (FS.isFile(node.mode)) {
          node.node_ops = MEMFS.ops_table.file.node;
          node.stream_ops = MEMFS.ops_table.file.stream;
          node.usedBytes = 0; // The actual number of bytes used in the typed array, as opposed to contents.length which gives the whole capacity.
          // When the byte data of the file is populated, this will point to either a typed array, or a normal JS array. Typed arrays are preferred
          // for performance, and used by default. However, typed arrays are not resizable like normal JS arrays are, so there is a small disk size
          // penalty involved for appending file writes that continuously grow a file similar to std::vector capacity vs used -scheme.
          node.contents = null; 
        } else if (FS.isLink(node.mode)) {
          node.node_ops = MEMFS.ops_table.link.node;
          node.stream_ops = MEMFS.ops_table.link.stream;
        } else if (FS.isChrdev(node.mode)) {
          node.node_ops = MEMFS.ops_table.chrdev.node;
          node.stream_ops = MEMFS.ops_table.chrdev.stream;
        }
        node.timestamp = Date.now();
        // add the new node to the parent
        if (parent) {
          parent.contents[name] = node;
          parent.timestamp = node.timestamp;
        }
        return node;
      },getFileDataAsTypedArray:function(node) {
        if (!node.contents) return new Uint8Array(0);
        if (node.contents.subarray) return node.contents.subarray(0, node.usedBytes); // Make sure to not return excess unused bytes.
        return new Uint8Array(node.contents);
      },expandFileStorage:function(node, newCapacity) {
        var prevCapacity = node.contents ? node.contents.length : 0;
        if (prevCapacity >= newCapacity) return; // No need to expand, the storage was already large enough.
        // Don't expand strictly to the given requested limit if it's only a very small increase, but instead geometrically grow capacity.
        // For small filesizes (<1MB), perform size*2 geometric increase, but for large sizes, do a much more conservative size*1.125 increase to
        // avoid overshooting the allocation cap by a very large margin.
        var CAPACITY_DOUBLING_MAX = 1024 * 1024;
        newCapacity = Math.max(newCapacity, (prevCapacity * (prevCapacity < CAPACITY_DOUBLING_MAX ? 2.0 : 1.125)) >>> 0);
        if (prevCapacity != 0) newCapacity = Math.max(newCapacity, 256); // At minimum allocate 256b for each file when expanding.
        var oldContents = node.contents;
        node.contents = new Uint8Array(newCapacity); // Allocate new storage.
        if (node.usedBytes > 0) node.contents.set(oldContents.subarray(0, node.usedBytes), 0); // Copy old data over to the new storage.
      },resizeFileStorage:function(node, newSize) {
        if (node.usedBytes == newSize) return;
        if (newSize == 0) {
          node.contents = null; // Fully decommit when requesting a resize to zero.
          node.usedBytes = 0;
        } else {
          var oldContents = node.contents;
          node.contents = new Uint8Array(newSize); // Allocate new storage.
          if (oldContents) {
            node.contents.set(oldContents.subarray(0, Math.min(newSize, node.usedBytes))); // Copy old data over to the new storage.
          }
          node.usedBytes = newSize;
        }
      },node_ops:{getattr:function(node) {
          var attr = {};
          // device numbers reuse inode numbers.
          attr.dev = FS.isChrdev(node.mode) ? node.id : 1;
          attr.ino = node.id;
          attr.mode = node.mode;
          attr.nlink = 1;
          attr.uid = 0;
          attr.gid = 0;
          attr.rdev = node.rdev;
          if (FS.isDir(node.mode)) {
            attr.size = 4096;
          } else if (FS.isFile(node.mode)) {
            attr.size = node.usedBytes;
          } else if (FS.isLink(node.mode)) {
            attr.size = node.link.length;
          } else {
            attr.size = 0;
          }
          attr.atime = new Date(node.timestamp);
          attr.mtime = new Date(node.timestamp);
          attr.ctime = new Date(node.timestamp);
          // NOTE: In our implementation, st_blocks = Math.ceil(st_size/st_blksize),
          //       but this is not required by the standard.
          attr.blksize = 4096;
          attr.blocks = Math.ceil(attr.size / attr.blksize);
          return attr;
        },setattr:function(node, attr) {
          if (attr.mode !== undefined) {
            node.mode = attr.mode;
          }
          if (attr.timestamp !== undefined) {
            node.timestamp = attr.timestamp;
          }
          if (attr.size !== undefined) {
            MEMFS.resizeFileStorage(node, attr.size);
          }
        },lookup:function(parent, name) {
          throw FS.genericErrors[44];
        },mknod:function(parent, name, mode, dev) {
          return MEMFS.createNode(parent, name, mode, dev);
        },rename:function(old_node, new_dir, new_name) {
          // if we're overwriting a directory at new_name, make sure it's empty.
          if (FS.isDir(old_node.mode)) {
            var new_node;
            try {
              new_node = FS.lookupNode(new_dir, new_name);
            } catch (e) {
            }
            if (new_node) {
              for (var i in new_node.contents) {
                throw new FS.ErrnoError(55);
              }
            }
          }
          // do the internal rewiring
          delete old_node.parent.contents[old_node.name];
          old_node.parent.timestamp = Date.now()
          old_node.name = new_name;
          new_dir.contents[new_name] = old_node;
          new_dir.timestamp = old_node.parent.timestamp;
          old_node.parent = new_dir;
        },unlink:function(parent, name) {
          delete parent.contents[name];
          parent.timestamp = Date.now();
        },rmdir:function(parent, name) {
          var node = FS.lookupNode(parent, name);
          for (var i in node.contents) {
            throw new FS.ErrnoError(55);
          }
          delete parent.contents[name];
          parent.timestamp = Date.now();
        },readdir:function(node) {
          var entries = ['.', '..'];
          for (var key in node.contents) {
            if (!node.contents.hasOwnProperty(key)) {
              continue;
            }
            entries.push(key);
          }
          return entries;
        },symlink:function(parent, newname, oldpath) {
          var node = MEMFS.createNode(parent, newname, 511 /* 0777 */ | 40960, 0);
          node.link = oldpath;
          return node;
        },readlink:function(node) {
          if (!FS.isLink(node.mode)) {
            throw new FS.ErrnoError(28);
          }
          return node.link;
        }},stream_ops:{read:function(stream, buffer, offset, length, position) {
          var contents = stream.node.contents;
          if (position >= stream.node.usedBytes) return 0;
          var size = Math.min(stream.node.usedBytes - position, length);
          assert(size >= 0);
          if (size > 8 && contents.subarray) { // non-trivial, and typed array
            buffer.set(contents.subarray(position, position + size), offset);
          } else {
            for (var i = 0; i < size; i++) buffer[offset + i] = contents[position + i];
          }
          return size;
        },write:function(stream, buffer, offset, length, position, canOwn) {
          // The data buffer should be a typed array view
          assert(!(buffer instanceof ArrayBuffer));
          // If the buffer is located in main memory (HEAP), and if
          // memory can grow, we can't hold on to references of the
          // memory buffer, as they may get invalidated. That means we
          // need to do copy its contents.
          if (buffer.buffer === HEAP8.buffer) {
            canOwn = false;
          }
  
          if (!length) return 0;
          var node = stream.node;
          node.timestamp = Date.now();
  
          if (buffer.subarray && (!node.contents || node.contents.subarray)) { // This write is from a typed array to a typed array?
            if (canOwn) {
              assert(position === 0, 'canOwn must imply no weird position inside the file');
              node.contents = buffer.subarray(offset, offset + length);
              node.usedBytes = length;
              return length;
            } else if (node.usedBytes === 0 && position === 0) { // If this is a simple first write to an empty file, do a fast set since we don't need to care about old data.
              node.contents = buffer.slice(offset, offset + length);
              node.usedBytes = length;
              return length;
            } else if (position + length <= node.usedBytes) { // Writing to an already allocated and used subrange of the file?
              node.contents.set(buffer.subarray(offset, offset + length), position);
              return length;
            }
          }
  
          // Appending to an existing file and we need to reallocate, or source data did not come as a typed array.
          MEMFS.expandFileStorage(node, position+length);
          if (node.contents.subarray && buffer.subarray) {
            // Use typed array write which is available.
            node.contents.set(buffer.subarray(offset, offset + length), position);
          } else {
            for (var i = 0; i < length; i++) {
             node.contents[position + i] = buffer[offset + i]; // Or fall back to manual write if not.
            }
          }
          node.usedBytes = Math.max(node.usedBytes, position + length);
          return length;
        },llseek:function(stream, offset, whence) {
          var position = offset;
          if (whence === 1) {
            position += stream.position;
          } else if (whence === 2) {
            if (FS.isFile(stream.node.mode)) {
              position += stream.node.usedBytes;
            }
          }
          if (position < 0) {
            throw new FS.ErrnoError(28);
          }
          return position;
        },allocate:function(stream, offset, length) {
          MEMFS.expandFileStorage(stream.node, offset + length);
          stream.node.usedBytes = Math.max(stream.node.usedBytes, offset + length);
        },mmap:function(stream, address, length, position, prot, flags) {
          if (address !== 0) {
            // We don't currently support location hints for the address of the mapping
            throw new FS.ErrnoError(28);
          }
          if (!FS.isFile(stream.node.mode)) {
            throw new FS.ErrnoError(43);
          }
          var ptr;
          var allocated;
          var contents = stream.node.contents;
          // Only make a new copy when MAP_PRIVATE is specified.
          if (!(flags & 2) && contents.buffer === buffer) {
            // We can't emulate MAP_SHARED when the file is not backed by the buffer
            // we're mapping to (e.g. the HEAP buffer).
            allocated = false;
            ptr = contents.byteOffset;
          } else {
            // Try to avoid unnecessary slices.
            if (position > 0 || position + length < contents.length) {
              if (contents.subarray) {
                contents = contents.subarray(position, position + length);
              } else {
                contents = Array.prototype.slice.call(contents, position, position + length);
              }
            }
            allocated = true;
            ptr = mmapAlloc(length);
            if (!ptr) {
              throw new FS.ErrnoError(48);
            }
            HEAP8.set(contents, ptr);
          }
          return { ptr: ptr, allocated: allocated };
        },msync:function(stream, buffer, offset, length, mmapFlags) {
          if (!FS.isFile(stream.node.mode)) {
            throw new FS.ErrnoError(43);
          }
          if (mmapFlags & 2) {
            // MAP_PRIVATE calls need not to be synced back to underlying fs
            return 0;
          }
  
          var bytesWritten = MEMFS.stream_ops.write(stream, buffer, 0, length, offset, false);
          // should we check if bytesWritten and length are the same?
          return 0;
        }}};
  
  /** @param {boolean=} noRunDep */
  function asyncLoad(url, onload, onerror, noRunDep) {
      var dep = !noRunDep ? getUniqueRunDependency('al ' + url) : '';
      readAsync(url, function(arrayBuffer) {
        assert(arrayBuffer, 'Loading data file "' + url + '" failed (no arrayBuffer).');
        onload(new Uint8Array(arrayBuffer));
        if (dep) removeRunDependency(dep);
      }, function(event) {
        if (onerror) {
          onerror();
        } else {
          throw 'Loading data file "' + url + '" failed.';
        }
      });
      if (dep) addRunDependency(dep);
    }
  
  var IDBFS = {dbs:{},indexedDB:() => {
        if (typeof indexedDB != 'undefined') return indexedDB;
        var ret = null;
        if (typeof window == 'object') ret = window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
        assert(ret, 'IDBFS used, but indexedDB not supported');
        return ret;
      },DB_VERSION:21,DB_STORE_NAME:"FILE_DATA",mount:function(mount) {
        // reuse all of the core MEMFS functionality
        return MEMFS.mount.apply(null, arguments);
      },syncfs:(mount, populate, callback) => {
        IDBFS.getLocalSet(mount, (err, local) => {
          if (err) return callback(err);
  
          IDBFS.getRemoteSet(mount, (err, remote) => {
            if (err) return callback(err);
  
            var src = populate ? remote : local;
            var dst = populate ? local : remote;
  
            IDBFS.reconcile(src, dst, callback);
          });
        });
      },getDB:(name, callback) => {
        // check the cache first
        var db = IDBFS.dbs[name];
        if (db) {
          return callback(null, db);
        }
  
        var req;
        try {
          req = IDBFS.indexedDB().open(name, IDBFS.DB_VERSION);
        } catch (e) {
          return callback(e);
        }
        if (!req) {
          return callback("Unable to connect to IndexedDB");
        }
        req.onupgradeneeded = (e) => {
          var db = /** @type {IDBDatabase} */ (e.target.result);
          var transaction = e.target.transaction;
  
          var fileStore;
  
          if (db.objectStoreNames.contains(IDBFS.DB_STORE_NAME)) {
            fileStore = transaction.objectStore(IDBFS.DB_STORE_NAME);
          } else {
            fileStore = db.createObjectStore(IDBFS.DB_STORE_NAME);
          }
  
          if (!fileStore.indexNames.contains('timestamp')) {
            fileStore.createIndex('timestamp', 'timestamp', { unique: false });
          }
        };
        req.onsuccess = () => {
          db = /** @type {IDBDatabase} */ (req.result);
  
          // add to the cache
          IDBFS.dbs[name] = db;
          callback(null, db);
        };
        req.onerror = (e) => {
          callback(this.error);
          e.preventDefault();
        };
      },getLocalSet:(mount, callback) => {
        var entries = {};
  
        function isRealDir(p) {
          return p !== '.' && p !== '..';
        };
        function toAbsolute(root) {
          return (p) => {
            return PATH.join2(root, p);
          }
        };
  
        var check = FS.readdir(mount.mountpoint).filter(isRealDir).map(toAbsolute(mount.mountpoint));
  
        while (check.length) {
          var path = check.pop();
          var stat;
  
          try {
            stat = FS.stat(path);
          } catch (e) {
            return callback(e);
          }
  
          if (FS.isDir(stat.mode)) {
            check.push.apply(check, FS.readdir(path).filter(isRealDir).map(toAbsolute(path)));
          }
  
          entries[path] = { 'timestamp': stat.mtime };
        }
  
        return callback(null, { type: 'local', entries: entries });
      },getRemoteSet:(mount, callback) => {
        var entries = {};
  
        IDBFS.getDB(mount.mountpoint, (err, db) => {
          if (err) return callback(err);
  
          try {
            var transaction = db.transaction([IDBFS.DB_STORE_NAME], 'readonly');
            transaction.onerror = (e) => {
              callback(this.error);
              e.preventDefault();
            };
  
            var store = transaction.objectStore(IDBFS.DB_STORE_NAME);
            var index = store.index('timestamp');
  
            index.openKeyCursor().onsuccess = (event) => {
              var cursor = event.target.result;
  
              if (!cursor) {
                return callback(null, { type: 'remote', db: db, entries: entries });
              }
  
              entries[cursor.primaryKey] = { 'timestamp': cursor.key };
  
              cursor.continue();
            };
          } catch (e) {
            return callback(e);
          }
        });
      },loadLocalEntry:(path, callback) => {
        var stat, node;
  
        try {
          var lookup = FS.lookupPath(path);
          node = lookup.node;
          stat = FS.stat(path);
        } catch (e) {
          return callback(e);
        }
  
        if (FS.isDir(stat.mode)) {
          return callback(null, { 'timestamp': stat.mtime, 'mode': stat.mode });
        } else if (FS.isFile(stat.mode)) {
          // Performance consideration: storing a normal JavaScript array to a IndexedDB is much slower than storing a typed array.
          // Therefore always convert the file contents to a typed array first before writing the data to IndexedDB.
          node.contents = MEMFS.getFileDataAsTypedArray(node);
          return callback(null, { 'timestamp': stat.mtime, 'mode': stat.mode, 'contents': node.contents });
        } else {
          return callback(new Error('node type not supported'));
        }
      },storeLocalEntry:(path, entry, callback) => {
        try {
          if (FS.isDir(entry['mode'])) {
            FS.mkdirTree(path, entry['mode']);
          } else if (FS.isFile(entry['mode'])) {
            FS.writeFile(path, entry['contents'], { canOwn: true });
          } else {
            return callback(new Error('node type not supported'));
          }
  
          FS.chmod(path, entry['mode']);
          FS.utime(path, entry['timestamp'], entry['timestamp']);
        } catch (e) {
          return callback(e);
        }
  
        callback(null);
      },removeLocalEntry:(path, callback) => {
        try {
          var lookup = FS.lookupPath(path);
          var stat = FS.stat(path);
  
          if (FS.isDir(stat.mode)) {
            FS.rmdir(path);
          } else if (FS.isFile(stat.mode)) {
            FS.unlink(path);
          }
        } catch (e) {
          return callback(e);
        }
  
        callback(null);
      },loadRemoteEntry:(store, path, callback) => {
        var req = store.get(path);
        req.onsuccess = (event) => { callback(null, event.target.result); };
        req.onerror = (e) => {
          callback(this.error);
          e.preventDefault();
        };
      },storeRemoteEntry:(store, path, entry, callback) => {
        try {
          var req = store.put(entry, path);
        } catch (e) {
          callback(e);
          return;
        }
        req.onsuccess = () => { callback(null); };
        req.onerror = (e) => {
          callback(this.error);
          e.preventDefault();
        };
      },removeRemoteEntry:(store, path, callback) => {
        var req = store.delete(path);
        req.onsuccess = () => { callback(null); };
        req.onerror = (e) => {
          callback(this.error);
          e.preventDefault();
        };
      },reconcile:(src, dst, callback) => {
        var total = 0;
  
        var create = [];
        Object.keys(src.entries).forEach(function (key) {
          var e = src.entries[key];
          var e2 = dst.entries[key];
          if (!e2 || e['timestamp'].getTime() != e2['timestamp'].getTime()) {
            create.push(key);
            total++;
          }
        });
  
        var remove = [];
        Object.keys(dst.entries).forEach(function (key) {
          if (!src.entries[key]) {
            remove.push(key);
            total++;
          }
        });
  
        if (!total) {
          return callback(null);
        }
  
        var errored = false;
        var db = src.type === 'remote' ? src.db : dst.db;
        var transaction = db.transaction([IDBFS.DB_STORE_NAME], 'readwrite');
        var store = transaction.objectStore(IDBFS.DB_STORE_NAME);
  
        function done(err) {
          if (err && !errored) {
            errored = true;
            return callback(err);
          }
        };
  
        transaction.onerror = (e) => {
          done(this.error);
          e.preventDefault();
        };
  
        transaction.oncomplete = (e) => {
          if (!errored) {
            callback(null);
          }
        };
  
        // sort paths in ascending order so directory entries are created
        // before the files inside them
        create.sort().forEach((path) => {
          if (dst.type === 'local') {
            IDBFS.loadRemoteEntry(store, path, (err, entry) => {
              if (err) return done(err);
              IDBFS.storeLocalEntry(path, entry, done);
            });
          } else {
            IDBFS.loadLocalEntry(path, (err, entry) => {
              if (err) return done(err);
              IDBFS.storeRemoteEntry(store, path, entry, done);
            });
          }
        });
  
        // sort paths in descending order so files are deleted before their
        // parent directories
        remove.sort().reverse().forEach((path) => {
          if (dst.type === 'local') {
            IDBFS.removeLocalEntry(path, done);
          } else {
            IDBFS.removeRemoteEntry(store, path, done);
          }
        });
      }};
  
  var ERRNO_MESSAGES = {0:"Success",1:"Arg list too long",2:"Permission denied",3:"Address already in use",4:"Address not available",5:"Address family not supported by protocol family",6:"No more processes",7:"Socket already connected",8:"Bad file number",9:"Trying to read unreadable message",10:"Mount device busy",11:"Operation canceled",12:"No children",13:"Connection aborted",14:"Connection refused",15:"Connection reset by peer",16:"File locking deadlock error",17:"Destination address required",18:"Math arg out of domain of func",19:"Quota exceeded",20:"File exists",21:"Bad address",22:"File too large",23:"Host is unreachable",24:"Identifier removed",25:"Illegal byte sequence",26:"Connection already in progress",27:"Interrupted system call",28:"Invalid argument",29:"I/O error",30:"Socket is already connected",31:"Is a directory",32:"Too many symbolic links",33:"Too many open files",34:"Too many links",35:"Message too long",36:"Multihop attempted",37:"File or path name too long",38:"Network interface is not configured",39:"Connection reset by network",40:"Network is unreachable",41:"Too many open files in system",42:"No buffer space available",43:"No such device",44:"No such file or directory",45:"Exec format error",46:"No record locks available",47:"The link has been severed",48:"Not enough core",49:"No message of desired type",50:"Protocol not available",51:"No space left on device",52:"Function not implemented",53:"Socket is not connected",54:"Not a directory",55:"Directory not empty",56:"State not recoverable",57:"Socket operation on non-socket",59:"Not a typewriter",60:"No such device or address",61:"Value too large for defined data type",62:"Previous owner died",63:"Not super-user",64:"Broken pipe",65:"Protocol error",66:"Unknown protocol",67:"Protocol wrong type for socket",68:"Math result not representable",69:"Read only file system",70:"Illegal seek",71:"No such process",72:"Stale file handle",73:"Connection timed out",74:"Text file busy",75:"Cross-device link",100:"Device not a stream",101:"Bad font file fmt",102:"Invalid slot",103:"Invalid request code",104:"No anode",105:"Block device required",106:"Channel number out of range",107:"Level 3 halted",108:"Level 3 reset",109:"Link number out of range",110:"Protocol driver not attached",111:"No CSI structure available",112:"Level 2 halted",113:"Invalid exchange",114:"Invalid request descriptor",115:"Exchange full",116:"No data (for no delay io)",117:"Timer expired",118:"Out of streams resources",119:"Machine is not on the network",120:"Package not installed",121:"The object is remote",122:"Advertise error",123:"Srmount error",124:"Communication error on send",125:"Cross mount point (not really error)",126:"Given log. name not unique",127:"f.d. invalid for this operation",128:"Remote address changed",129:"Can   access a needed shared lib",130:"Accessing a corrupted shared lib",131:".lib section in a.out corrupted",132:"Attempting to link in too many libs",133:"Attempting to exec a shared library",135:"Streams pipe error",136:"Too many users",137:"Socket type not supported",138:"Not supported",139:"Protocol family not supported",140:"Can't send after socket shutdown",141:"Too many references",142:"Host is down",148:"No medium (in tape drive)",156:"Level 2 not synchronized"};
  
  var ERRNO_CODES = {};
  var FS = {root:null,mounts:[],devices:{},streams:[],nextInode:1,nameTable:null,currentPath:"/",initialized:false,ignorePermissions:true,ErrnoError:null,genericErrors:{},filesystems:null,syncFSRequests:0,lookupPath:(path, opts = {}) => {
        path = PATH_FS.resolve(FS.cwd(), path);
  
        if (!path) return { path: '', node: null };
  
        var defaults = {
          follow_mount: true,
          recurse_count: 0
        };
        opts = Object.assign(defaults, opts)
  
        if (opts.recurse_count > 8) {  // max recursive lookup of 8
          throw new FS.ErrnoError(32);
        }
  
        // split the path
        var parts = PATH.normalizeArray(path.split('/').filter((p) => !!p), false);
  
        // start at the root
        var current = FS.root;
        var current_path = '/';
  
        for (var i = 0; i < parts.length; i++) {
          var islast = (i === parts.length-1);
          if (islast && opts.parent) {
            // stop resolving
            break;
          }
  
          current = FS.lookupNode(current, parts[i]);
          current_path = PATH.join2(current_path, parts[i]);
  
          // jump to the mount's root node if this is a mountpoint
          if (FS.isMountpoint(current)) {
            if (!islast || (islast && opts.follow_mount)) {
              current = current.mounted.root;
            }
          }
  
          // by default, lookupPath will not follow a symlink if it is the final path component.
          // setting opts.follow = true will override this behavior.
          if (!islast || opts.follow) {
            var count = 0;
            while (FS.isLink(current.mode)) {
              var link = FS.readlink(current_path);
              current_path = PATH_FS.resolve(PATH.dirname(current_path), link);
  
              var lookup = FS.lookupPath(current_path, { recurse_count: opts.recurse_count + 1 });
              current = lookup.node;
  
              if (count++ > 40) {  // limit max consecutive symlinks to 40 (SYMLOOP_MAX).
                throw new FS.ErrnoError(32);
              }
            }
          }
        }
  
        return { path: current_path, node: current };
      },getPath:(node) => {
        var path;
        while (true) {
          if (FS.isRoot(node)) {
            var mount = node.mount.mountpoint;
            if (!path) return mount;
            return mount[mount.length-1] !== '/' ? mount + '/' + path : mount + path;
          }
          path = path ? node.name + '/' + path : node.name;
          node = node.parent;
        }
      },hashName:(parentid, name) => {
        var hash = 0;
  
        for (var i = 0; i < name.length; i++) {
          hash = ((hash << 5) - hash + name.charCodeAt(i)) | 0;
        }
        return ((parentid + hash) >>> 0) % FS.nameTable.length;
      },hashAddNode:(node) => {
        var hash = FS.hashName(node.parent.id, node.name);
        node.name_next = FS.nameTable[hash];
        FS.nameTable[hash] = node;
      },hashRemoveNode:(node) => {
        var hash = FS.hashName(node.parent.id, node.name);
        if (FS.nameTable[hash] === node) {
          FS.nameTable[hash] = node.name_next;
        } else {
          var current = FS.nameTable[hash];
          while (current) {
            if (current.name_next === node) {
              current.name_next = node.name_next;
              break;
            }
            current = current.name_next;
          }
        }
      },lookupNode:(parent, name) => {
        var errCode = FS.mayLookup(parent);
        if (errCode) {
          throw new FS.ErrnoError(errCode, parent);
        }
        var hash = FS.hashName(parent.id, name);
        for (var node = FS.nameTable[hash]; node; node = node.name_next) {
          var nodeName = node.name;
          if (node.parent.id === parent.id && nodeName === name) {
            return node;
          }
        }
        // if we failed to find it in the cache, call into the VFS
        return FS.lookup(parent, name);
      },createNode:(parent, name, mode, rdev) => {
        assert(typeof parent == 'object')
        var node = new FS.FSNode(parent, name, mode, rdev);
  
        FS.hashAddNode(node);
  
        return node;
      },destroyNode:(node) => {
        FS.hashRemoveNode(node);
      },isRoot:(node) => {
        return node === node.parent;
      },isMountpoint:(node) => {
        return !!node.mounted;
      },isFile:(mode) => {
        return (mode & 61440) === 32768;
      },isDir:(mode) => {
        return (mode & 61440) === 16384;
      },isLink:(mode) => {
        return (mode & 61440) === 40960;
      },isChrdev:(mode) => {
        return (mode & 61440) === 8192;
      },isBlkdev:(mode) => {
        return (mode & 61440) === 24576;
      },isFIFO:(mode) => {
        return (mode & 61440) === 4096;
      },isSocket:(mode) => {
        return (mode & 49152) === 49152;
      },flagModes:{"r":0,"r+":2,"w":577,"w+":578,"a":1089,"a+":1090},modeStringToFlags:(str) => {
        var flags = FS.flagModes[str];
        if (typeof flags == 'undefined') {
          throw new Error('Unknown file open mode: ' + str);
        }
        return flags;
      },flagsToPermissionString:(flag) => {
        var perms = ['r', 'w', 'rw'][flag & 3];
        if ((flag & 512)) {
          perms += 'w';
        }
        return perms;
      },nodePermissions:(node, perms) => {
        if (FS.ignorePermissions) {
          return 0;
        }
        // return 0 if any user, group or owner bits are set.
        if (perms.includes('r') && !(node.mode & 292)) {
          return 2;
        } else if (perms.includes('w') && !(node.mode & 146)) {
          return 2;
        } else if (perms.includes('x') && !(node.mode & 73)) {
          return 2;
        }
        return 0;
      },mayLookup:(dir) => {
        var errCode = FS.nodePermissions(dir, 'x');
        if (errCode) return errCode;
        if (!dir.node_ops.lookup) return 2;
        return 0;
      },mayCreate:(dir, name) => {
        try {
          var node = FS.lookupNode(dir, name);
          return 20;
        } catch (e) {
        }
        return FS.nodePermissions(dir, 'wx');
      },mayDelete:(dir, name, isdir) => {
        var node;
        try {
          node = FS.lookupNode(dir, name);
        } catch (e) {
          return e.errno;
        }
        var errCode = FS.nodePermissions(dir, 'wx');
        if (errCode) {
          return errCode;
        }
        if (isdir) {
          if (!FS.isDir(node.mode)) {
            return 54;
          }
          if (FS.isRoot(node) || FS.getPath(node) === FS.cwd()) {
            return 10;
          }
        } else {
          if (FS.isDir(node.mode)) {
            return 31;
          }
        }
        return 0;
      },mayOpen:(node, flags) => {
        if (!node) {
          return 44;
        }
        if (FS.isLink(node.mode)) {
          return 32;
        } else if (FS.isDir(node.mode)) {
          if (FS.flagsToPermissionString(flags) !== 'r' || // opening for write
              (flags & 512)) { // TODO: check for O_SEARCH? (== search for dir only)
            return 31;
          }
        }
        return FS.nodePermissions(node, FS.flagsToPermissionString(flags));
      },MAX_OPEN_FDS:4096,nextfd:(fd_start = 0, fd_end = FS.MAX_OPEN_FDS) => {
        for (var fd = fd_start; fd <= fd_end; fd++) {
          if (!FS.streams[fd]) {
            return fd;
          }
        }
        throw new FS.ErrnoError(33);
      },getStream:(fd) => FS.streams[fd],createStream:(stream, fd_start, fd_end) => {
        if (!FS.FSStream) {
          FS.FSStream = /** @constructor */ function(){};
          FS.FSStream.prototype = {
            object: {
              get: function() { return this.node; },
              set: function(val) { this.node = val; }
            },
            isRead: {
              get: function() { return (this.flags & 2097155) !== 1; }
            },
            isWrite: {
              get: function() { return (this.flags & 2097155) !== 0; }
            },
            isAppend: {
              get: function() { return (this.flags & 1024); }
            }
          };
        }
        // clone it, so we can return an instance of FSStream
        stream = Object.assign(new FS.FSStream(), stream);
        var fd = FS.nextfd(fd_start, fd_end);
        stream.fd = fd;
        FS.streams[fd] = stream;
        return stream;
      },closeStream:(fd) => {
        FS.streams[fd] = null;
      },chrdev_stream_ops:{open:(stream) => {
          var device = FS.getDevice(stream.node.rdev);
          // override node's stream ops with the device's
          stream.stream_ops = device.stream_ops;
          // forward the open call
          if (stream.stream_ops.open) {
            stream.stream_ops.open(stream);
          }
        },llseek:() => {
          throw new FS.ErrnoError(70);
        }},major:(dev) => ((dev) >> 8),minor:(dev) => ((dev) & 0xff),makedev:(ma, mi) => ((ma) << 8 | (mi)),registerDevice:(dev, ops) => {
        FS.devices[dev] = { stream_ops: ops };
      },getDevice:(dev) => FS.devices[dev],getMounts:(mount) => {
        var mounts = [];
        var check = [mount];
  
        while (check.length) {
          var m = check.pop();
  
          mounts.push(m);
  
          check.push.apply(check, m.mounts);
        }
  
        return mounts;
      },syncfs:(populate, callback) => {
        if (typeof populate == 'function') {
          callback = populate;
          populate = false;
        }
  
        FS.syncFSRequests++;
  
        if (FS.syncFSRequests > 1) {
          err('warning: ' + FS.syncFSRequests + ' FS.syncfs operations in flight at once, probably just doing extra work');
        }
  
        var mounts = FS.getMounts(FS.root.mount);
        var completed = 0;
  
        function doCallback(errCode) {
          assert(FS.syncFSRequests > 0);
          FS.syncFSRequests--;
          return callback(errCode);
        }
  
        function done(errCode) {
          if (errCode) {
            if (!done.errored) {
              done.errored = true;
              return doCallback(errCode);
            }
            return;
          }
          if (++completed >= mounts.length) {
            doCallback(null);
          }
        };
  
        // sync all mounts
        mounts.forEach((mount) => {
          if (!mount.type.syncfs) {
            return done(null);
          }
          mount.type.syncfs(mount, populate, done);
        });
      },mount:(type, opts, mountpoint) => {
        if (typeof type == 'string') {
          // The filesystem was not included, and instead we have an error
          // message stored in the variable.
          throw type;
        }
        var root = mountpoint === '/';
        var pseudo = !mountpoint;
        var node;
  
        if (root && FS.root) {
          throw new FS.ErrnoError(10);
        } else if (!root && !pseudo) {
          var lookup = FS.lookupPath(mountpoint, { follow_mount: false });
  
          mountpoint = lookup.path;  // use the absolute path
          node = lookup.node;
  
          if (FS.isMountpoint(node)) {
            throw new FS.ErrnoError(10);
          }
  
          if (!FS.isDir(node.mode)) {
            throw new FS.ErrnoError(54);
          }
        }
  
        var mount = {
          type: type,
          opts: opts,
          mountpoint: mountpoint,
          mounts: []
        };
  
        // create a root node for the fs
        var mountRoot = type.mount(mount);
        mountRoot.mount = mount;
        mount.root = mountRoot;
  
        if (root) {
          FS.root = mountRoot;
        } else if (node) {
          // set as a mountpoint
          node.mounted = mount;
  
          // add the new mount to the current mount's children
          if (node.mount) {
            node.mount.mounts.push(mount);
          }
        }
  
        return mountRoot;
      },unmount:(mountpoint) => {
        var lookup = FS.lookupPath(mountpoint, { follow_mount: false });
  
        if (!FS.isMountpoint(lookup.node)) {
          throw new FS.ErrnoError(28);
        }
  
        // destroy the nodes for this mount, and all its child mounts
        var node = lookup.node;
        var mount = node.mounted;
        var mounts = FS.getMounts(mount);
  
        Object.keys(FS.nameTable).forEach((hash) => {
          var current = FS.nameTable[hash];
  
          while (current) {
            var next = current.name_next;
  
            if (mounts.includes(current.mount)) {
              FS.destroyNode(current);
            }
  
            current = next;
          }
        });
  
        // no longer a mountpoint
        node.mounted = null;
  
        // remove this mount from the child mounts
        var idx = node.mount.mounts.indexOf(mount);
        assert(idx !== -1);
        node.mount.mounts.splice(idx, 1);
      },lookup:(parent, name) => {
        return parent.node_ops.lookup(parent, name);
      },mknod:(path, mode, dev) => {
        var lookup = FS.lookupPath(path, { parent: true });
        var parent = lookup.node;
        var name = PATH.basename(path);
        if (!name || name === '.' || name === '..') {
          throw new FS.ErrnoError(28);
        }
        var errCode = FS.mayCreate(parent, name);
        if (errCode) {
          throw new FS.ErrnoError(errCode);
        }
        if (!parent.node_ops.mknod) {
          throw new FS.ErrnoError(63);
        }
        return parent.node_ops.mknod(parent, name, mode, dev);
      },create:(path, mode) => {
        mode = mode !== undefined ? mode : 438 /* 0666 */;
        mode &= 4095;
        mode |= 32768;
        return FS.mknod(path, mode, 0);
      },mkdir:(path, mode) => {
        mode = mode !== undefined ? mode : 511 /* 0777 */;
        mode &= 511 | 512;
        mode |= 16384;
        return FS.mknod(path, mode, 0);
      },mkdirTree:(path, mode) => {
        var dirs = path.split('/');
        var d = '';
        for (var i = 0; i < dirs.length; ++i) {
          if (!dirs[i]) continue;
          d += '/' + dirs[i];
          try {
            FS.mkdir(d, mode);
          } catch(e) {
            if (e.errno != 20) throw e;
          }
        }
      },mkdev:(path, mode, dev) => {
        if (typeof dev == 'undefined') {
          dev = mode;
          mode = 438 /* 0666 */;
        }
        mode |= 8192;
        return FS.mknod(path, mode, dev);
      },symlink:(oldpath, newpath) => {
        if (!PATH_FS.resolve(oldpath)) {
          throw new FS.ErrnoError(44);
        }
        var lookup = FS.lookupPath(newpath, { parent: true });
        var parent = lookup.node;
        if (!parent) {
          throw new FS.ErrnoError(44);
        }
        var newname = PATH.basename(newpath);
        var errCode = FS.mayCreate(parent, newname);
        if (errCode) {
          throw new FS.ErrnoError(errCode);
        }
        if (!parent.node_ops.symlink) {
          throw new FS.ErrnoError(63);
        }
        return parent.node_ops.symlink(parent, newname, oldpath);
      },rename:(old_path, new_path) => {
        var old_dirname = PATH.dirname(old_path);
        var new_dirname = PATH.dirname(new_path);
        var old_name = PATH.basename(old_path);
        var new_name = PATH.basename(new_path);
        // parents must exist
        var lookup, old_dir, new_dir;
  
        // let the errors from non existant directories percolate up
        lookup = FS.lookupPath(old_path, { parent: true });
        old_dir = lookup.node;
        lookup = FS.lookupPath(new_path, { parent: true });
        new_dir = lookup.node;
  
        if (!old_dir || !new_dir) throw new FS.ErrnoError(44);
        // need to be part of the same mount
        if (old_dir.mount !== new_dir.mount) {
          throw new FS.ErrnoError(75);
        }
        // source must exist
        var old_node = FS.lookupNode(old_dir, old_name);
        // old path should not be an ancestor of the new path
        var relative = PATH_FS.relative(old_path, new_dirname);
        if (relative.charAt(0) !== '.') {
          throw new FS.ErrnoError(28);
        }
        // new path should not be an ancestor of the old path
        relative = PATH_FS.relative(new_path, old_dirname);
        if (relative.charAt(0) !== '.') {
          throw new FS.ErrnoError(55);
        }
        // see if the new path already exists
        var new_node;
        try {
          new_node = FS.lookupNode(new_dir, new_name);
        } catch (e) {
          // not fatal
        }
        // early out if nothing needs to change
        if (old_node === new_node) {
          return;
        }
        // we'll need to delete the old entry
        var isdir = FS.isDir(old_node.mode);
        var errCode = FS.mayDelete(old_dir, old_name, isdir);
        if (errCode) {
          throw new FS.ErrnoError(errCode);
        }
        // need delete permissions if we'll be overwriting.
        // need create permissions if new doesn't already exist.
        errCode = new_node ?
          FS.mayDelete(new_dir, new_name, isdir) :
          FS.mayCreate(new_dir, new_name);
        if (errCode) {
          throw new FS.ErrnoError(errCode);
        }
        if (!old_dir.node_ops.rename) {
          throw new FS.ErrnoError(63);
        }
        if (FS.isMountpoint(old_node) || (new_node && FS.isMountpoint(new_node))) {
          throw new FS.ErrnoError(10);
        }
        // if we are going to change the parent, check write permissions
        if (new_dir !== old_dir) {
          errCode = FS.nodePermissions(old_dir, 'w');
          if (errCode) {
            throw new FS.ErrnoError(errCode);
          }
        }
        // remove the node from the lookup hash
        FS.hashRemoveNode(old_node);
        // do the underlying fs rename
        try {
          old_dir.node_ops.rename(old_node, new_dir, new_name);
        } catch (e) {
          throw e;
        } finally {
          // add the node back to the hash (in case node_ops.rename
          // changed its name)
          FS.hashAddNode(old_node);
        }
      },rmdir:(path) => {
        var lookup = FS.lookupPath(path, { parent: true });
        var parent = lookup.node;
        var name = PATH.basename(path);
        var node = FS.lookupNode(parent, name);
        var errCode = FS.mayDelete(parent, name, true);
        if (errCode) {
          throw new FS.ErrnoError(errCode);
        }
        if (!parent.node_ops.rmdir) {
          throw new FS.ErrnoError(63);
        }
        if (FS.isMountpoint(node)) {
          throw new FS.ErrnoError(10);
        }
        parent.node_ops.rmdir(parent, name);
        FS.destroyNode(node);
      },readdir:(path) => {
        var lookup = FS.lookupPath(path, { follow: true });
        var node = lookup.node;
        if (!node.node_ops.readdir) {
          throw new FS.ErrnoError(54);
        }
        return node.node_ops.readdir(node);
      },unlink:(path) => {
        var lookup = FS.lookupPath(path, { parent: true });
        var parent = lookup.node;
        if (!parent) {
          throw new FS.ErrnoError(44);
        }
        var name = PATH.basename(path);
        var node = FS.lookupNode(parent, name);
        var errCode = FS.mayDelete(parent, name, false);
        if (errCode) {
          // According to POSIX, we should map EISDIR to EPERM, but
          // we instead do what Linux does (and we must, as we use
          // the musl linux libc).
          throw new FS.ErrnoError(errCode);
        }
        if (!parent.node_ops.unlink) {
          throw new FS.ErrnoError(63);
        }
        if (FS.isMountpoint(node)) {
          throw new FS.ErrnoError(10);
        }
        parent.node_ops.unlink(parent, name);
        FS.destroyNode(node);
      },readlink:(path) => {
        var lookup = FS.lookupPath(path);
        var link = lookup.node;
        if (!link) {
          throw new FS.ErrnoError(44);
        }
        if (!link.node_ops.readlink) {
          throw new FS.ErrnoError(28);
        }
        return PATH_FS.resolve(FS.getPath(link.parent), link.node_ops.readlink(link));
      },stat:(path, dontFollow) => {
        var lookup = FS.lookupPath(path, { follow: !dontFollow });
        var node = lookup.node;
        if (!node) {
          throw new FS.ErrnoError(44);
        }
        if (!node.node_ops.getattr) {
          throw new FS.ErrnoError(63);
        }
        return node.node_ops.getattr(node);
      },lstat:(path) => {
        return FS.stat(path, true);
      },chmod:(path, mode, dontFollow) => {
        var node;
        if (typeof path == 'string') {
          var lookup = FS.lookupPath(path, { follow: !dontFollow });
          node = lookup.node;
        } else {
          node = path;
        }
        if (!node.node_ops.setattr) {
          throw new FS.ErrnoError(63);
        }
        node.node_ops.setattr(node, {
          mode: (mode & 4095) | (node.mode & ~4095),
          timestamp: Date.now()
        });
      },lchmod:(path, mode) => {
        FS.chmod(path, mode, true);
      },fchmod:(fd, mode) => {
        var stream = FS.getStream(fd);
        if (!stream) {
          throw new FS.ErrnoError(8);
        }
        FS.chmod(stream.node, mode);
      },chown:(path, uid, gid, dontFollow) => {
        var node;
        if (typeof path == 'string') {
          var lookup = FS.lookupPath(path, { follow: !dontFollow });
          node = lookup.node;
        } else {
          node = path;
        }
        if (!node.node_ops.setattr) {
          throw new FS.ErrnoError(63);
        }
        node.node_ops.setattr(node, {
          timestamp: Date.now()
          // we ignore the uid / gid for now
        });
      },lchown:(path, uid, gid) => {
        FS.chown(path, uid, gid, true);
      },fchown:(fd, uid, gid) => {
        var stream = FS.getStream(fd);
        if (!stream) {
          throw new FS.ErrnoError(8);
        }
        FS.chown(stream.node, uid, gid);
      },truncate:(path, len) => {
        if (len < 0) {
          throw new FS.ErrnoError(28);
        }
        var node;
        if (typeof path == 'string') {
          var lookup = FS.lookupPath(path, { follow: true });
          node = lookup.node;
        } else {
          node = path;
        }
        if (!node.node_ops.setattr) {
          throw new FS.ErrnoError(63);
        }
        if (FS.isDir(node.mode)) {
          throw new FS.ErrnoError(31);
        }
        if (!FS.isFile(node.mode)) {
          throw new FS.ErrnoError(28);
        }
        var errCode = FS.nodePermissions(node, 'w');
        if (errCode) {
          throw new FS.ErrnoError(errCode);
        }
        node.node_ops.setattr(node, {
          size: len,
          timestamp: Date.now()
        });
      },ftruncate:(fd, len) => {
        var stream = FS.getStream(fd);
        if (!stream) {
          throw new FS.ErrnoError(8);
        }
        if ((stream.flags & 2097155) === 0) {
          throw new FS.ErrnoError(28);
        }
        FS.truncate(stream.node, len);
      },utime:(path, atime, mtime) => {
        var lookup = FS.lookupPath(path, { follow: true });
        var node = lookup.node;
        node.node_ops.setattr(node, {
          timestamp: Math.max(atime, mtime)
        });
      },open:(path, flags, mode, fd_start, fd_end) => {
        if (path === "") {
          throw new FS.ErrnoError(44);
        }
        flags = typeof flags == 'string' ? FS.modeStringToFlags(flags) : flags;
        mode = typeof mode == 'undefined' ? 438 /* 0666 */ : mode;
        if ((flags & 64)) {
          mode = (mode & 4095) | 32768;
        } else {
          mode = 0;
        }
        var node;
        if (typeof path == 'object') {
          node = path;
        } else {
          path = PATH.normalize(path);
          try {
            var lookup = FS.lookupPath(path, {
              follow: !(flags & 131072)
            });
            node = lookup.node;
          } catch (e) {
            // ignore
          }
        }
        // perhaps we need to create the node
        var created = false;
        if ((flags & 64)) {
          if (node) {
            // if O_CREAT and O_EXCL are set, error out if the node already exists
            if ((flags & 128)) {
              throw new FS.ErrnoError(20);
            }
          } else {
            // node doesn't exist, try to create it
            node = FS.mknod(path, mode, 0);
            created = true;
          }
        }
        if (!node) {
          throw new FS.ErrnoError(44);
        }
        // can't truncate a device
        if (FS.isChrdev(node.mode)) {
          flags &= ~512;
        }
        // if asked only for a directory, then this must be one
        if ((flags & 65536) && !FS.isDir(node.mode)) {
          throw new FS.ErrnoError(54);
        }
        // check permissions, if this is not a file we just created now (it is ok to
        // create and write to a file with read-only permissions; it is read-only
        // for later use)
        if (!created) {
          var errCode = FS.mayOpen(node, flags);
          if (errCode) {
            throw new FS.ErrnoError(errCode);
          }
        }
        // do truncation if necessary
        if ((flags & 512)) {
          FS.truncate(node, 0);
        }
        // we've already handled these, don't pass down to the underlying vfs
        flags &= ~(128 | 512 | 131072);
  
        // register the stream with the filesystem
        var stream = FS.createStream({
          node: node,
          path: FS.getPath(node),  // we want the absolute path to the node
          flags: flags,
          seekable: true,
          position: 0,
          stream_ops: node.stream_ops,
          // used by the file family libc calls (fopen, fwrite, ferror, etc.)
          ungotten: [],
          error: false
        }, fd_start, fd_end);
        // call the new stream's open function
        if (stream.stream_ops.open) {
          stream.stream_ops.open(stream);
        }
        if (Module['logReadFiles'] && !(flags & 1)) {
          if (!FS.readFiles) FS.readFiles = {};
          if (!(path in FS.readFiles)) {
            FS.readFiles[path] = 1;
          }
        }
        return stream;
      },close:(stream) => {
        if (FS.isClosed(stream)) {
          throw new FS.ErrnoError(8);
        }
        if (stream.getdents) stream.getdents = null; // free readdir state
        try {
          if (stream.stream_ops.close) {
            stream.stream_ops.close(stream);
          }
        } catch (e) {
          throw e;
        } finally {
          FS.closeStream(stream.fd);
        }
        stream.fd = null;
      },isClosed:(stream) => {
        return stream.fd === null;
      },llseek:(stream, offset, whence) => {
        if (FS.isClosed(stream)) {
          throw new FS.ErrnoError(8);
        }
        if (!stream.seekable || !stream.stream_ops.llseek) {
          throw new FS.ErrnoError(70);
        }
        if (whence != 0 && whence != 1 && whence != 2) {
          throw new FS.ErrnoError(28);
        }
        stream.position = stream.stream_ops.llseek(stream, offset, whence);
        stream.ungotten = [];
        return stream.position;
      },read:(stream, buffer, offset, length, position) => {
        if (length < 0 || position < 0) {
          throw new FS.ErrnoError(28);
        }
        if (FS.isClosed(stream)) {
          throw new FS.ErrnoError(8);
        }
        if ((stream.flags & 2097155) === 1) {
          throw new FS.ErrnoError(8);
        }
        if (FS.isDir(stream.node.mode)) {
          throw new FS.ErrnoError(31);
        }
        if (!stream.stream_ops.read) {
          throw new FS.ErrnoError(28);
        }
        var seeking = typeof position != 'undefined';
        if (!seeking) {
          position = stream.position;
        } else if (!stream.seekable) {
          throw new FS.ErrnoError(70);
        }
        var bytesRead = stream.stream_ops.read(stream, buffer, offset, length, position);
        if (!seeking) stream.position += bytesRead;
        return bytesRead;
      },write:(stream, buffer, offset, length, position, canOwn) => {
        if (length < 0 || position < 0) {
          throw new FS.ErrnoError(28);
        }
        if (FS.isClosed(stream)) {
          throw new FS.ErrnoError(8);
        }
        if ((stream.flags & 2097155) === 0) {
          throw new FS.ErrnoError(8);
        }
        if (FS.isDir(stream.node.mode)) {
          throw new FS.ErrnoError(31);
        }
        if (!stream.stream_ops.write) {
          throw new FS.ErrnoError(28);
        }
        if (stream.seekable && stream.flags & 1024) {
          // seek to the end before writing in append mode
          FS.llseek(stream, 0, 2);
        }
        var seeking = typeof position != 'undefined';
        if (!seeking) {
          position = stream.position;
        } else if (!stream.seekable) {
          throw new FS.ErrnoError(70);
        }
        var bytesWritten = stream.stream_ops.write(stream, buffer, offset, length, position, canOwn);
        if (!seeking) stream.position += bytesWritten;
        return bytesWritten;
      },allocate:(stream, offset, length) => {
        if (FS.isClosed(stream)) {
          throw new FS.ErrnoError(8);
        }
        if (offset < 0 || length <= 0) {
          throw new FS.ErrnoError(28);
        }
        if ((stream.flags & 2097155) === 0) {
          throw new FS.ErrnoError(8);
        }
        if (!FS.isFile(stream.node.mode) && !FS.isDir(stream.node.mode)) {
          throw new FS.ErrnoError(43);
        }
        if (!stream.stream_ops.allocate) {
          throw new FS.ErrnoError(138);
        }
        stream.stream_ops.allocate(stream, offset, length);
      },mmap:(stream, address, length, position, prot, flags) => {
        // User requests writing to file (prot & PROT_WRITE != 0).
        // Checking if we have permissions to write to the file unless
        // MAP_PRIVATE flag is set. According to POSIX spec it is possible
        // to write to file opened in read-only mode with MAP_PRIVATE flag,
        // as all modifications will be visible only in the memory of
        // the current process.
        if ((prot & 2) !== 0
            && (flags & 2) === 0
            && (stream.flags & 2097155) !== 2) {
          throw new FS.ErrnoError(2);
        }
        if ((stream.flags & 2097155) === 1) {
          throw new FS.ErrnoError(2);
        }
        if (!stream.stream_ops.mmap) {
          throw new FS.ErrnoError(43);
        }
        return stream.stream_ops.mmap(stream, address, length, position, prot, flags);
      },msync:(stream, buffer, offset, length, mmapFlags) => {
        if (!stream || !stream.stream_ops.msync) {
          return 0;
        }
        return stream.stream_ops.msync(stream, buffer, offset, length, mmapFlags);
      },munmap:(stream) => 0,ioctl:(stream, cmd, arg) => {
        if (!stream.stream_ops.ioctl) {
          throw new FS.ErrnoError(59);
        }
        return stream.stream_ops.ioctl(stream, cmd, arg);
      },readFile:(path, opts = {}) => {
        opts.flags = opts.flags || 0;
        opts.encoding = opts.encoding || 'binary';
        if (opts.encoding !== 'utf8' && opts.encoding !== 'binary') {
          throw new Error('Invalid encoding type "' + opts.encoding + '"');
        }
        var ret;
        var stream = FS.open(path, opts.flags);
        var stat = FS.stat(path);
        var length = stat.size;
        var buf = new Uint8Array(length);
        FS.read(stream, buf, 0, length, 0);
        if (opts.encoding === 'utf8') {
          ret = UTF8ArrayToString(buf, 0);
        } else if (opts.encoding === 'binary') {
          ret = buf;
        }
        FS.close(stream);
        return ret;
      },writeFile:(path, data, opts = {}) => {
        opts.flags = opts.flags || 577;
        var stream = FS.open(path, opts.flags, opts.mode);
        if (typeof data == 'string') {
          var buf = new Uint8Array(lengthBytesUTF8(data)+1);
          var actualNumBytes = stringToUTF8Array(data, buf, 0, buf.length);
          FS.write(stream, buf, 0, actualNumBytes, undefined, opts.canOwn);
        } else if (ArrayBuffer.isView(data)) {
          FS.write(stream, data, 0, data.byteLength, undefined, opts.canOwn);
        } else {
          throw new Error('Unsupported data type');
        }
        FS.close(stream);
      },cwd:() => FS.currentPath,chdir:(path) => {
        var lookup = FS.lookupPath(path, { follow: true });
        if (lookup.node === null) {
          throw new FS.ErrnoError(44);
        }
        if (!FS.isDir(lookup.node.mode)) {
          throw new FS.ErrnoError(54);
        }
        var errCode = FS.nodePermissions(lookup.node, 'x');
        if (errCode) {
          throw new FS.ErrnoError(errCode);
        }
        FS.currentPath = lookup.path;
      },createDefaultDirectories:() => {
        FS.mkdir('/tmp');
        FS.mkdir('/home');
        FS.mkdir('/home/web_user');
      },createDefaultDevices:() => {
        // create /dev
        FS.mkdir('/dev');
        // setup /dev/null
        FS.registerDevice(FS.makedev(1, 3), {
          read: () => 0,
          write: (stream, buffer, offset, length, pos) => length,
        });
        FS.mkdev('/dev/null', FS.makedev(1, 3));
        // setup /dev/tty and /dev/tty1
        // stderr needs to print output using err() rather than out()
        // so we register a second tty just for it.
        TTY.register(FS.makedev(5, 0), TTY.default_tty_ops);
        TTY.register(FS.makedev(6, 0), TTY.default_tty1_ops);
        FS.mkdev('/dev/tty', FS.makedev(5, 0));
        FS.mkdev('/dev/tty1', FS.makedev(6, 0));
        // setup /dev/[u]random
        var random_device = getRandomDevice();
        FS.createDevice('/dev', 'random', random_device);
        FS.createDevice('/dev', 'urandom', random_device);
        // we're not going to emulate the actual shm device,
        // just create the tmp dirs that reside in it commonly
        FS.mkdir('/dev/shm');
        FS.mkdir('/dev/shm/tmp');
      },createSpecialDirectories:() => {
        // create /proc/self/fd which allows /proc/self/fd/6 => readlink gives the
        // name of the stream for fd 6 (see test_unistd_ttyname)
        FS.mkdir('/proc');
        var proc_self = FS.mkdir('/proc/self');
        FS.mkdir('/proc/self/fd');
        FS.mount({
          mount: () => {
            var node = FS.createNode(proc_self, 'fd', 16384 | 511 /* 0777 */, 73);
            node.node_ops = {
              lookup: (parent, name) => {
                var fd = +name;
                var stream = FS.getStream(fd);
                if (!stream) throw new FS.ErrnoError(8);
                var ret = {
                  parent: null,
                  mount: { mountpoint: 'fake' },
                  node_ops: { readlink: () => stream.path },
                };
                ret.parent = ret; // make it look like a simple root node
                return ret;
              }
            };
            return node;
          }
        }, {}, '/proc/self/fd');
      },createStandardStreams:() => {
        // TODO deprecate the old functionality of a single
        // input / output callback and that utilizes FS.createDevice
        // and instead require a unique set of stream ops
  
        // by default, we symlink the standard streams to the
        // default tty devices. however, if the standard streams
        // have been overwritten we create a unique device for
        // them instead.
        if (Module['stdin']) {
          FS.createDevice('/dev', 'stdin', Module['stdin']);
        } else {
          FS.symlink('/dev/tty', '/dev/stdin');
        }
        if (Module['stdout']) {
          FS.createDevice('/dev', 'stdout', null, Module['stdout']);
        } else {
          FS.symlink('/dev/tty', '/dev/stdout');
        }
        if (Module['stderr']) {
          FS.createDevice('/dev', 'stderr', null, Module['stderr']);
        } else {
          FS.symlink('/dev/tty1', '/dev/stderr');
        }
  
        // open default streams for the stdin, stdout and stderr devices
        var stdin = FS.open('/dev/stdin', 0);
        var stdout = FS.open('/dev/stdout', 1);
        var stderr = FS.open('/dev/stderr', 1);
        assert(stdin.fd === 0, 'invalid handle for stdin (' + stdin.fd + ')');
        assert(stdout.fd === 1, 'invalid handle for stdout (' + stdout.fd + ')');
        assert(stderr.fd === 2, 'invalid handle for stderr (' + stderr.fd + ')');
      },ensureErrnoError:() => {
        if (FS.ErrnoError) return;
        FS.ErrnoError = /** @this{Object} */ function ErrnoError(errno, node) {
          this.node = node;
          this.setErrno = /** @this{Object} */ function(errno) {
            this.errno = errno;
            for (var key in ERRNO_CODES) {
              if (ERRNO_CODES[key] === errno) {
                this.code = key;
                break;
              }
            }
          };
          this.setErrno(errno);
          this.message = ERRNO_MESSAGES[errno];
  
          // Try to get a maximally helpful stack trace. On Node.js, getting Error.stack
          // now ensures it shows what we want.
          if (this.stack) {
            // Define the stack property for Node.js 4, which otherwise errors on the next line.
            Object.defineProperty(this, "stack", { value: (new Error).stack, writable: true });
            this.stack = demangleAll(this.stack);
          }
        };
        FS.ErrnoError.prototype = new Error();
        FS.ErrnoError.prototype.constructor = FS.ErrnoError;
        // Some errors may happen quite a bit, to avoid overhead we reuse them (and suffer a lack of stack info)
        [44].forEach((code) => {
          FS.genericErrors[code] = new FS.ErrnoError(code);
          FS.genericErrors[code].stack = '<generic error, no stack>';
        });
      },staticInit:() => {
        FS.ensureErrnoError();
  
        FS.nameTable = new Array(4096);
  
        FS.mount(MEMFS, {}, '/');
  
        FS.createDefaultDirectories();
        FS.createDefaultDevices();
        FS.createSpecialDirectories();
  
        FS.filesystems = {
          'MEMFS': MEMFS,
          'IDBFS': IDBFS,
        };
      },init:(input, output, error) => {
        assert(!FS.init.initialized, 'FS.init was previously called. If you want to initialize later with custom parameters, remove any earlier calls (note that one is automatically added to the generated code)');
        FS.init.initialized = true;
  
        FS.ensureErrnoError();
  
        // Allow Module.stdin etc. to provide defaults, if none explicitly passed to us here
        Module['stdin'] = input || Module['stdin'];
        Module['stdout'] = output || Module['stdout'];
        Module['stderr'] = error || Module['stderr'];
  
        FS.createStandardStreams();
      },quit:() => {
        FS.init.initialized = false;
        // Call musl-internal function to close all stdio streams, so nothing is
        // left in internal buffers.
        ___stdio_exit();
        // close all of our streams
        for (var i = 0; i < FS.streams.length; i++) {
          var stream = FS.streams[i];
          if (!stream) {
            continue;
          }
          FS.close(stream);
        }
      },getMode:(canRead, canWrite) => {
        var mode = 0;
        if (canRead) mode |= 292 | 73;
        if (canWrite) mode |= 146;
        return mode;
      },findObject:(path, dontResolveLastLink) => {
        var ret = FS.analyzePath(path, dontResolveLastLink);
        if (ret.exists) {
          return ret.object;
        } else {
          return null;
        }
      },analyzePath:(path, dontResolveLastLink) => {
        // operate from within the context of the symlink's target
        try {
          var lookup = FS.lookupPath(path, { follow: !dontResolveLastLink });
          path = lookup.path;
        } catch (e) {
        }
        var ret = {
          isRoot: false, exists: false, error: 0, name: null, path: null, object: null,
          parentExists: false, parentPath: null, parentObject: null
        };
        try {
          var lookup = FS.lookupPath(path, { parent: true });
          ret.parentExists = true;
          ret.parentPath = lookup.path;
          ret.parentObject = lookup.node;
          ret.name = PATH.basename(path);
          lookup = FS.lookupPath(path, { follow: !dontResolveLastLink });
          ret.exists = true;
          ret.path = lookup.path;
          ret.object = lookup.node;
          ret.name = lookup.node.name;
          ret.isRoot = lookup.path === '/';
        } catch (e) {
          ret.error = e.errno;
        };
        return ret;
      },createPath:(parent, path, canRead, canWrite) => {
        parent = typeof parent == 'string' ? parent : FS.getPath(parent);
        var parts = path.split('/').reverse();
        while (parts.length) {
          var part = parts.pop();
          if (!part) continue;
          var current = PATH.join2(parent, part);
          try {
            FS.mkdir(current);
          } catch (e) {
            // ignore EEXIST
          }
          parent = current;
        }
        return current;
      },createFile:(parent, name, properties, canRead, canWrite) => {
        var path = PATH.join2(typeof parent == 'string' ? parent : FS.getPath(parent), name);
        var mode = FS.getMode(canRead, canWrite);
        return FS.create(path, mode);
      },createDataFile:(parent, name, data, canRead, canWrite, canOwn) => {
        var path = name;
        if (parent) {
          parent = typeof parent == 'string' ? parent : FS.getPath(parent);
          path = name ? PATH.join2(parent, name) : parent;
        }
        var mode = FS.getMode(canRead, canWrite);
        var node = FS.create(path, mode);
        if (data) {
          if (typeof data == 'string') {
            var arr = new Array(data.length);
            for (var i = 0, len = data.length; i < len; ++i) arr[i] = data.charCodeAt(i);
            data = arr;
          }
          // make sure we can write to the file
          FS.chmod(node, mode | 146);
          var stream = FS.open(node, 577);
          FS.write(stream, data, 0, data.length, 0, canOwn);
          FS.close(stream);
          FS.chmod(node, mode);
        }
        return node;
      },createDevice:(parent, name, input, output) => {
        var path = PATH.join2(typeof parent == 'string' ? parent : FS.getPath(parent), name);
        var mode = FS.getMode(!!input, !!output);
        if (!FS.createDevice.major) FS.createDevice.major = 64;
        var dev = FS.makedev(FS.createDevice.major++, 0);
        // Create a fake device that a set of stream ops to emulate
        // the old behavior.
        FS.registerDevice(dev, {
          open: (stream) => {
            stream.seekable = false;
          },
          close: (stream) => {
            // flush any pending line data
            if (output && output.buffer && output.buffer.length) {
              output(10);
            }
          },
          read: (stream, buffer, offset, length, pos /* ignored */) => {
            var bytesRead = 0;
            for (var i = 0; i < length; i++) {
              var result;
              try {
                result = input();
              } catch (e) {
                throw new FS.ErrnoError(29);
              }
              if (result === undefined && bytesRead === 0) {
                throw new FS.ErrnoError(6);
              }
              if (result === null || result === undefined) break;
              bytesRead++;
              buffer[offset+i] = result;
            }
            if (bytesRead) {
              stream.node.timestamp = Date.now();
            }
            return bytesRead;
          },
          write: (stream, buffer, offset, length, pos) => {
            for (var i = 0; i < length; i++) {
              try {
                output(buffer[offset+i]);
              } catch (e) {
                throw new FS.ErrnoError(29);
              }
            }
            if (length) {
              stream.node.timestamp = Date.now();
            }
            return i;
          }
        });
        return FS.mkdev(path, mode, dev);
      },forceLoadFile:(obj) => {
        if (obj.isDevice || obj.isFolder || obj.link || obj.contents) return true;
        if (typeof XMLHttpRequest != 'undefined') {
          throw new Error("Lazy loading should have been performed (contents set) in createLazyFile, but it was not. Lazy loading only works in web workers. Use --embed-file or --preload-file in emcc on the main thread.");
        } else if (read_) {
          // Command-line.
          try {
            // WARNING: Can't read binary files in V8's d8 or tracemonkey's js, as
            //          read() will try to parse UTF8.
            obj.contents = intArrayFromString(read_(obj.url), true);
            obj.usedBytes = obj.contents.length;
          } catch (e) {
            throw new FS.ErrnoError(29);
          }
        } else {
          throw new Error('Cannot load without read() or XMLHttpRequest.');
        }
      },createLazyFile:(parent, name, url, canRead, canWrite) => {
        // Lazy chunked Uint8Array (implements get and length from Uint8Array). Actual getting is abstracted away for eventual reuse.
        /** @constructor */
        function LazyUint8Array() {
          this.lengthKnown = false;
          this.chunks = []; // Loaded chunks. Index is the chunk number
        }
        LazyUint8Array.prototype.get = /** @this{Object} */ function LazyUint8Array_get(idx) {
          if (idx > this.length-1 || idx < 0) {
            return undefined;
          }
          var chunkOffset = idx % this.chunkSize;
          var chunkNum = (idx / this.chunkSize)|0;
          return this.getter(chunkNum)[chunkOffset];
        };
        LazyUint8Array.prototype.setDataGetter = function LazyUint8Array_setDataGetter(getter) {
          this.getter = getter;
        };
        LazyUint8Array.prototype.cacheLength = function LazyUint8Array_cacheLength() {
          // Find length
          var xhr = new XMLHttpRequest();
          xhr.open('HEAD', url, false);
          xhr.send(null);
          if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status);
          var datalength = Number(xhr.getResponseHeader("Content-length"));
          var header;
          var hasByteServing = (header = xhr.getResponseHeader("Accept-Ranges")) && header === "bytes";
          var usesGzip = (header = xhr.getResponseHeader("Content-Encoding")) && header === "gzip";
  
          var chunkSize = 1024*1024; // Chunk size in bytes
  
          if (!hasByteServing) chunkSize = datalength;
  
          // Function to get a range from the remote URL.
          var doXHR = (from, to) => {
            if (from > to) throw new Error("invalid range (" + from + ", " + to + ") or no bytes requested!");
            if (to > datalength-1) throw new Error("only " + datalength + " bytes available! programmer error!");
  
            // TODO: Use mozResponseArrayBuffer, responseStream, etc. if available.
            var xhr = new XMLHttpRequest();
            xhr.open('GET', url, false);
            if (datalength !== chunkSize) xhr.setRequestHeader("Range", "bytes=" + from + "-" + to);
  
            // Some hints to the browser that we want binary data.
            xhr.responseType = 'arraybuffer';
            if (xhr.overrideMimeType) {
              xhr.overrideMimeType('text/plain; charset=x-user-defined');
            }
  
            xhr.send(null);
            if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status);
            if (xhr.response !== undefined) {
              return new Uint8Array(/** @type{Array<number>} */(xhr.response || []));
            } else {
              return intArrayFromString(xhr.responseText || '', true);
            }
          };
          var lazyArray = this;
          lazyArray.setDataGetter((chunkNum) => {
            var start = chunkNum * chunkSize;
            var end = (chunkNum+1) * chunkSize - 1; // including this byte
            end = Math.min(end, datalength-1); // if datalength-1 is selected, this is the last block
            if (typeof lazyArray.chunks[chunkNum] == 'undefined') {
              lazyArray.chunks[chunkNum] = doXHR(start, end);
            }
            if (typeof lazyArray.chunks[chunkNum] == 'undefined') throw new Error('doXHR failed!');
            return lazyArray.chunks[chunkNum];
          });
  
          if (usesGzip || !datalength) {
            // if the server uses gzip or doesn't supply the length, we have to download the whole file to get the (uncompressed) length
            chunkSize = datalength = 1; // this will force getter(0)/doXHR do download the whole file
            datalength = this.getter(0).length;
            chunkSize = datalength;
            out("LazyFiles on gzip forces download of the whole file when length is accessed");
          }
  
          this._length = datalength;
          this._chunkSize = chunkSize;
          this.lengthKnown = true;
        };
        if (typeof XMLHttpRequest != 'undefined') {
          if (!ENVIRONMENT_IS_WORKER) throw 'Cannot do synchronous binary XHRs outside webworkers in modern browsers. Use --embed-file or --preload-file in emcc';
          var lazyArray = new LazyUint8Array();
          Object.defineProperties(lazyArray, {
            length: {
              get: /** @this{Object} */ function() {
                if (!this.lengthKnown) {
                  this.cacheLength();
                }
                return this._length;
              }
            },
            chunkSize: {
              get: /** @this{Object} */ function() {
                if (!this.lengthKnown) {
                  this.cacheLength();
                }
                return this._chunkSize;
              }
            }
          });
  
          var properties = { isDevice: false, contents: lazyArray };
        } else {
          var properties = { isDevice: false, url: url };
        }
  
        var node = FS.createFile(parent, name, properties, canRead, canWrite);
        // This is a total hack, but I want to get this lazy file code out of the
        // core of MEMFS. If we want to keep this lazy file concept I feel it should
        // be its own thin LAZYFS proxying calls to MEMFS.
        if (properties.contents) {
          node.contents = properties.contents;
        } else if (properties.url) {
          node.contents = null;
          node.url = properties.url;
        }
        // Add a function that defers querying the file size until it is asked the first time.
        Object.defineProperties(node, {
          usedBytes: {
            get: /** @this {FSNode} */ function() { return this.contents.length; }
          }
        });
        // override each stream op with one that tries to force load the lazy file first
        var stream_ops = {};
        var keys = Object.keys(node.stream_ops);
        keys.forEach((key) => {
          var fn = node.stream_ops[key];
          stream_ops[key] = function forceLoadLazyFile() {
            FS.forceLoadFile(node);
            return fn.apply(null, arguments);
          };
        });
        // use a custom read function
        stream_ops.read = (stream, buffer, offset, length, position) => {
          FS.forceLoadFile(node);
          var contents = stream.node.contents;
          if (position >= contents.length)
            return 0;
          var size = Math.min(contents.length - position, length);
          assert(size >= 0);
          if (contents.slice) { // normal array
            for (var i = 0; i < size; i++) {
              buffer[offset + i] = contents[position + i];
            }
          } else {
            for (var i = 0; i < size; i++) { // LazyUint8Array from sync binary XHR
              buffer[offset + i] = contents.get(position + i);
            }
          }
          return size;
        };
        node.stream_ops = stream_ops;
        return node;
      },createPreloadedFile:(parent, name, url, canRead, canWrite, onload, onerror, dontCreateFile, canOwn, preFinish) => {
        // TODO we should allow people to just pass in a complete filename instead
        // of parent and name being that we just join them anyways
        var fullname = name ? PATH_FS.resolve(PATH.join2(parent, name)) : parent;
        var dep = getUniqueRunDependency('cp ' + fullname); // might have several active requests for the same fullname
        function processData(byteArray) {
          function finish(byteArray) {
            if (preFinish) preFinish();
            if (!dontCreateFile) {
              FS.createDataFile(parent, name, byteArray, canRead, canWrite, canOwn);
            }
            if (onload) onload();
            removeRunDependency(dep);
          }
          if (Browser.handledByPreloadPlugin(byteArray, fullname, finish, () => {
            if (onerror) onerror();
            removeRunDependency(dep);
          })) {
            return;
          }
          finish(byteArray);
        }
        addRunDependency(dep);
        if (typeof url == 'string') {
          asyncLoad(url, (byteArray) => processData(byteArray), onerror);
        } else {
          processData(url);
        }
      },indexedDB:() => {
        return window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
      },DB_NAME:() => {
        return 'EM_FS_' + window.location.pathname;
      },DB_VERSION:20,DB_STORE_NAME:"FILE_DATA",saveFilesToDB:(paths, onload, onerror) => {
        onload = onload || (() => {});
        onerror = onerror || (() => {});
        var indexedDB = FS.indexedDB();
        try {
          var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION);
        } catch (e) {
          return onerror(e);
        }
        openRequest.onupgradeneeded = () => {
          out('creating db');
          var db = openRequest.result;
          db.createObjectStore(FS.DB_STORE_NAME);
        };
        openRequest.onsuccess = () => {
          var db = openRequest.result;
          var transaction = db.transaction([FS.DB_STORE_NAME], 'readwrite');
          var files = transaction.objectStore(FS.DB_STORE_NAME);
          var ok = 0, fail = 0, total = paths.length;
          function finish() {
            if (fail == 0) onload(); else onerror();
          }
          paths.forEach((path) => {
            var putRequest = files.put(FS.analyzePath(path).object.contents, path);
            putRequest.onsuccess = () => { ok++; if (ok + fail == total) finish() };
            putRequest.onerror = () => { fail++; if (ok + fail == total) finish() };
          });
          transaction.onerror = onerror;
        };
        openRequest.onerror = onerror;
      },loadFilesFromDB:(paths, onload, onerror) => {
        onload = onload || (() => {});
        onerror = onerror || (() => {});
        var indexedDB = FS.indexedDB();
        try {
          var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION);
        } catch (e) {
          return onerror(e);
        }
        openRequest.onupgradeneeded = onerror; // no database to load from
        openRequest.onsuccess = () => {
          var db = openRequest.result;
          try {
            var transaction = db.transaction([FS.DB_STORE_NAME], 'readonly');
          } catch(e) {
            onerror(e);
            return;
          }
          var files = transaction.objectStore(FS.DB_STORE_NAME);
          var ok = 0, fail = 0, total = paths.length;
          function finish() {
            if (fail == 0) onload(); else onerror();
          }
          paths.forEach((path) => {
            var getRequest = files.get(path);
            getRequest.onsuccess = () => {
              if (FS.analyzePath(path).exists) {
                FS.unlink(path);
              }
              FS.createDataFile(PATH.dirname(path), PATH.basename(path), getRequest.result, true, true, true);
              ok++;
              if (ok + fail == total) finish();
            };
            getRequest.onerror = () => { fail++; if (ok + fail == total) finish() };
          });
          transaction.onerror = onerror;
        };
        openRequest.onerror = onerror;
      },absolutePath:() => {
        abort('FS.absolutePath has been removed; use PATH_FS.resolve instead');
      },createFolder:() => {
        abort('FS.createFolder has been removed; use FS.mkdir instead');
      },createLink:() => {
        abort('FS.createLink has been removed; use FS.symlink instead');
      },joinPath:() => {
        abort('FS.joinPath has been removed; use PATH.join instead');
      },mmapAlloc:() => {
        abort('FS.mmapAlloc has been replaced by the top level function mmapAlloc');
      },standardizePath:() => {
        abort('FS.standardizePath has been removed; use PATH.normalize instead');
      }};
  var SYSCALLS = {DEFAULT_POLLMASK:5,calculateAt:function(dirfd, path, allowEmpty) {
        if (path[0] === '/') {
          return path;
        }
        // relative path
        var dir;
        if (dirfd === -100) {
          dir = FS.cwd();
        } else {
          var dirstream = FS.getStream(dirfd);
          if (!dirstream) throw new FS.ErrnoError(8);
          dir = dirstream.path;
        }
        if (path.length == 0) {
          if (!allowEmpty) {
            throw new FS.ErrnoError(44);;
          }
          return dir;
        }
        return PATH.join2(dir, path);
      },doStat:function(func, path, buf) {
        try {
          var stat = func(path);
        } catch (e) {
          if (e && e.node && PATH.normalize(path) !== PATH.normalize(FS.getPath(e.node))) {
            // an error occurred while trying to look up the path; we should just report ENOTDIR
            return -54;
          }
          throw e;
        }
        HEAP32[((buf)>>2)] = stat.dev;
        HEAP32[(((buf)+(4))>>2)] = 0;
        HEAP32[(((buf)+(8))>>2)] = stat.ino;
        HEAP32[(((buf)+(12))>>2)] = stat.mode;
        HEAP32[(((buf)+(16))>>2)] = stat.nlink;
        HEAP32[(((buf)+(20))>>2)] = stat.uid;
        HEAP32[(((buf)+(24))>>2)] = stat.gid;
        HEAP32[(((buf)+(28))>>2)] = stat.rdev;
        HEAP32[(((buf)+(32))>>2)] = 0;
        (tempI64 = [stat.size>>>0,(tempDouble=stat.size,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math.min((+(Math.floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[(((buf)+(40))>>2)] = tempI64[0],HEAP32[(((buf)+(44))>>2)] = tempI64[1]);
        HEAP32[(((buf)+(48))>>2)] = 4096;
        HEAP32[(((buf)+(52))>>2)] = stat.blocks;
        HEAP32[(((buf)+(56))>>2)] = (stat.atime.getTime() / 1000)|0;
        HEAP32[(((buf)+(60))>>2)] = 0;
        HEAP32[(((buf)+(64))>>2)] = (stat.mtime.getTime() / 1000)|0;
        HEAP32[(((buf)+(68))>>2)] = 0;
        HEAP32[(((buf)+(72))>>2)] = (stat.ctime.getTime() / 1000)|0;
        HEAP32[(((buf)+(76))>>2)] = 0;
        (tempI64 = [stat.ino>>>0,(tempDouble=stat.ino,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math.min((+(Math.floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[(((buf)+(80))>>2)] = tempI64[0],HEAP32[(((buf)+(84))>>2)] = tempI64[1]);
        return 0;
      },doMsync:function(addr, stream, len, flags, offset) {
        var buffer = HEAPU8.slice(addr, addr + len);
        FS.msync(stream, buffer, offset, len, flags);
      },doMkdir:function(path, mode) {
        // remove a trailing slash, if one - /a/b/ has basename of '', but
        // we want to create b in the context of this function
        path = PATH.normalize(path);
        if (path[path.length-1] === '/') path = path.substr(0, path.length-1);
        FS.mkdir(path, mode, 0);
        return 0;
      },doMknod:function(path, mode, dev) {
        // we don't want this in the JS API as it uses mknod to create all nodes.
        switch (mode & 61440) {
          case 32768:
          case 8192:
          case 24576:
          case 4096:
          case 49152:
            break;
          default: return -28;
        }
        FS.mknod(path, mode, dev);
        return 0;
      },doReadlink:function(path, buf, bufsize) {
        if (bufsize <= 0) return -28;
        var ret = FS.readlink(path);
  
        var len = Math.min(bufsize, lengthBytesUTF8(ret));
        var endChar = HEAP8[buf+len];
        stringToUTF8(ret, buf, bufsize+1);
        // readlink is one of the rare functions that write out a C string, but does never append a null to the output buffer(!)
        // stringToUTF8() always appends a null byte, so restore the character under the null byte after the write.
        HEAP8[buf+len] = endChar;
  
        return len;
      },doAccess:function(path, amode) {
        if (amode & ~7) {
          // need a valid mode
          return -28;
        }
        var lookup = FS.lookupPath(path, { follow: true });
        var node = lookup.node;
        if (!node) {
          return -44;
        }
        var perms = '';
        if (amode & 4) perms += 'r';
        if (amode & 2) perms += 'w';
        if (amode & 1) perms += 'x';
        if (perms /* otherwise, they've just passed F_OK */ && FS.nodePermissions(node, perms)) {
          return -2;
        }
        return 0;
      },doReadv:function(stream, iov, iovcnt, offset) {
        var ret = 0;
        for (var i = 0; i < iovcnt; i++) {
          var ptr = HEAP32[(((iov)+(i*8))>>2)];
          var len = HEAP32[(((iov)+(i*8 + 4))>>2)];
          var curr = FS.read(stream, HEAP8,ptr, len, offset);
          if (curr < 0) return -1;
          ret += curr;
          if (curr < len) break; // nothing more to read
        }
        return ret;
      },doWritev:function(stream, iov, iovcnt, offset) {
        var ret = 0;
        for (var i = 0; i < iovcnt; i++) {
          var ptr = HEAP32[(((iov)+(i*8))>>2)];
          var len = HEAP32[(((iov)+(i*8 + 4))>>2)];
          var curr = FS.write(stream, HEAP8,ptr, len, offset);
          if (curr < 0) return -1;
          ret += curr;
        }
        return ret;
      },varargs:undefined,get:function() {
        assert(SYSCALLS.varargs != undefined);
        SYSCALLS.varargs += 4;
        var ret = HEAP32[(((SYSCALLS.varargs)-(4))>>2)];
        return ret;
      },getStr:function(ptr) {
        var ret = UTF8ToString(ptr);
        return ret;
      },getStreamFromFD:function(fd) {
        var stream = FS.getStream(fd);
        if (!stream) throw new FS.ErrnoError(8);
        return stream;
      },get64:function(low, high) {
        if (low >= 0) assert(high === 0);
        else assert(high === -1);
        return low;
      }};
  function ___syscall__newselect(nfds, readfds, writefds, exceptfds, timeout) {
  try {
  
      // readfds are supported,
      // writefds checks socket open status
      // exceptfds not supported
      // timeout is always 0 - fully async
      assert(nfds <= 64, 'nfds must be less than or equal to 64');  // fd sets have 64 bits // TODO: this could be 1024 based on current musl headers
      assert(!exceptfds, 'exceptfds not supported');
  
      var total = 0;
      
      var srcReadLow = (readfds ? HEAP32[((readfds)>>2)] : 0),
          srcReadHigh = (readfds ? HEAP32[(((readfds)+(4))>>2)] : 0);
      var srcWriteLow = (writefds ? HEAP32[((writefds)>>2)] : 0),
          srcWriteHigh = (writefds ? HEAP32[(((writefds)+(4))>>2)] : 0);
      var srcExceptLow = (exceptfds ? HEAP32[((exceptfds)>>2)] : 0),
          srcExceptHigh = (exceptfds ? HEAP32[(((exceptfds)+(4))>>2)] : 0);
  
      var dstReadLow = 0,
          dstReadHigh = 0;
      var dstWriteLow = 0,
          dstWriteHigh = 0;
      var dstExceptLow = 0,
          dstExceptHigh = 0;
  
      var allLow = (readfds ? HEAP32[((readfds)>>2)] : 0) |
                   (writefds ? HEAP32[((writefds)>>2)] : 0) |
                   (exceptfds ? HEAP32[((exceptfds)>>2)] : 0);
      var allHigh = (readfds ? HEAP32[(((readfds)+(4))>>2)] : 0) |
                    (writefds ? HEAP32[(((writefds)+(4))>>2)] : 0) |
                    (exceptfds ? HEAP32[(((exceptfds)+(4))>>2)] : 0);
  
      var check = function(fd, low, high, val) {
        return (fd < 32 ? (low & val) : (high & val));
      };
  
      for (var fd = 0; fd < nfds; fd++) {
        var mask = 1 << (fd % 32);
        if (!(check(fd, allLow, allHigh, mask))) {
          continue;  // index isn't in the set
        }
  
        var stream = FS.getStream(fd);
        if (!stream) throw new FS.ErrnoError(8);
  
        var flags = SYSCALLS.DEFAULT_POLLMASK;
  
        if (stream.stream_ops.poll) {
          flags = stream.stream_ops.poll(stream);
        }
  
        if ((flags & 1) && check(fd, srcReadLow, srcReadHigh, mask)) {
          fd < 32 ? (dstReadLow = dstReadLow | mask) : (dstReadHigh = dstReadHigh | mask);
          total++;
        }
        if ((flags & 4) && check(fd, srcWriteLow, srcWriteHigh, mask)) {
          fd < 32 ? (dstWriteLow = dstWriteLow | mask) : (dstWriteHigh = dstWriteHigh | mask);
          total++;
        }
        if ((flags & 2) && check(fd, srcExceptLow, srcExceptHigh, mask)) {
          fd < 32 ? (dstExceptLow = dstExceptLow | mask) : (dstExceptHigh = dstExceptHigh | mask);
          total++;
        }
      }
  
      if (readfds) {
        HEAP32[((readfds)>>2)] = dstReadLow;
        HEAP32[(((readfds)+(4))>>2)] = dstReadHigh;
      }
      if (writefds) {
        HEAP32[((writefds)>>2)] = dstWriteLow;
        HEAP32[(((writefds)+(4))>>2)] = dstWriteHigh;
      }
      if (exceptfds) {
        HEAP32[((exceptfds)>>2)] = dstExceptLow;
        HEAP32[(((exceptfds)+(4))>>2)] = dstExceptHigh;
      }
  
      return total;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  var SOCKFS = {mount:function(mount) {
        // If Module['websocket'] has already been defined (e.g. for configuring
        // the subprotocol/url) use that, if not initialise it to a new object.
        Module['websocket'] = (Module['websocket'] && 
                               ('object' === typeof Module['websocket'])) ? Module['websocket'] : {};
  
        // Add the Event registration mechanism to the exported websocket configuration
        // object so we can register network callbacks from native JavaScript too.
        // For more documentation see system/include/emscripten/emscripten.h
        Module['websocket']._callbacks = {};
        Module['websocket']['on'] = /** @this{Object} */ function(event, callback) {
          if ('function' === typeof callback) {
            this._callbacks[event] = callback;
          }
          return this;
        };
  
        Module['websocket'].emit = /** @this{Object} */ function(event, param) {
          if ('function' === typeof this._callbacks[event]) {
            this._callbacks[event].call(this, param);
          }
        };
  
        // If debug is enabled register simple default logging callbacks for each Event.
  
        return FS.createNode(null, '/', 16384 | 511 /* 0777 */, 0);
      },createSocket:function(family, type, protocol) {
        type &= ~526336; // Some applications may pass it; it makes no sense for a single process.
        var streaming = type == 1;
        if (streaming && protocol && protocol != 6) {
          throw new FS.ErrnoError(66); // if SOCK_STREAM, must be tcp or 0.
        }
  
        // create our internal socket structure
        var sock = {
          family: family,
          type: type,
          protocol: protocol,
          server: null,
          error: null, // Used in getsockopt for SOL_SOCKET/SO_ERROR test
          peers: {},
          pending: [],
          recv_queue: [],
          sock_ops: SOCKFS.websocket_sock_ops
        };
  
        // create the filesystem node to store the socket structure
        var name = SOCKFS.nextname();
        var node = FS.createNode(SOCKFS.root, name, 49152, 0);
        node.sock = sock;
  
        // and the wrapping stream that enables library functions such
        // as read and write to indirectly interact with the socket
        var stream = FS.createStream({
          path: name,
          node: node,
          flags: 2,
          seekable: false,
          stream_ops: SOCKFS.stream_ops
        });
  
        // map the new stream to the socket structure (sockets have a 1:1
        // relationship with a stream)
        sock.stream = stream;
  
        return sock;
      },getSocket:function(fd) {
        var stream = FS.getStream(fd);
        if (!stream || !FS.isSocket(stream.node.mode)) {
          return null;
        }
        return stream.node.sock;
      },stream_ops:{poll:function(stream) {
          var sock = stream.node.sock;
          return sock.sock_ops.poll(sock);
        },ioctl:function(stream, request, varargs) {
          var sock = stream.node.sock;
          return sock.sock_ops.ioctl(sock, request, varargs);
        },read:function(stream, buffer, offset, length, position /* ignored */) {
          var sock = stream.node.sock;
          var msg = sock.sock_ops.recvmsg(sock, length);
          if (!msg) {
            // socket is closed
            return 0;
          }
          buffer.set(msg.buffer, offset);
          return msg.buffer.length;
        },write:function(stream, buffer, offset, length, position /* ignored */) {
          var sock = stream.node.sock;
          return sock.sock_ops.sendmsg(sock, buffer, offset, length);
        },close:function(stream) {
          var sock = stream.node.sock;
          sock.sock_ops.close(sock);
        }},nextname:function() {
        if (!SOCKFS.nextname.current) {
          SOCKFS.nextname.current = 0;
        }
        return 'socket[' + (SOCKFS.nextname.current++) + ']';
      },websocket_sock_ops:{createPeer:function(sock, addr, port) {
          var ws;
  
          if (typeof addr == 'object') {
            ws = addr;
            addr = null;
            port = null;
          }
  
          if (ws) {
            // for sockets that've already connected (e.g. we're the server)
            // we can inspect the _socket property for the address
            if (ws._socket) {
              addr = ws._socket.remoteAddress;
              port = ws._socket.remotePort;
            }
            // if we're just now initializing a connection to the remote,
            // inspect the url property
            else {
              var result = /ws[s]?:\/\/([^:]+):(\d+)/.exec(ws.url);
              if (!result) {
                throw new Error('WebSocket URL must be in the format ws(s)://address:port');
              }
              addr = result[1];
              port = parseInt(result[2], 10);
            }
          } else {
            // create the actual websocket object and connect
            try {
              // runtimeConfig gets set to true if WebSocket runtime configuration is available.
              var runtimeConfig = (Module['websocket'] && ('object' === typeof Module['websocket']));
  
              // The default value is 'ws://' the replace is needed because the compiler replaces '//' comments with '#'
              // comments without checking context, so we'd end up with ws:#, the replace swaps the '#' for '//' again.
              var url = 'ws:#'.replace('#', '//');
  
              if (runtimeConfig) {
                if ('string' === typeof Module['websocket']['url']) {
                  url = Module['websocket']['url']; // Fetch runtime WebSocket URL config.
                }
              }
  
              if (url === 'ws://' || url === 'wss://') { // Is the supplied URL config just a prefix, if so complete it.
                var parts = addr.split('/');
                url = url + parts[0] + ":" + port + "/" + parts.slice(1).join('/');
              }
  
              // Make the WebSocket subprotocol (Sec-WebSocket-Protocol) default to binary if no configuration is set.
              var subProtocols = 'binary'; // The default value is 'binary'
  
              if (runtimeConfig) {
                if ('string' === typeof Module['websocket']['subprotocol']) {
                  subProtocols = Module['websocket']['subprotocol']; // Fetch runtime WebSocket subprotocol config.
                }
              }
  
              // The default WebSocket options
              var opts = undefined;
  
              if (subProtocols !== 'null') {
                // The regex trims the string (removes spaces at the beginning and end, then splits the string by
                // <any space>,<any space> into an Array. Whitespace removal is important for Websockify and ws.
                subProtocols = subProtocols.replace(/^ +| +$/g,"").split(/ *, */);
  
                // The node ws library API for specifying optional subprotocol is slightly different than the browser's.
                opts = ENVIRONMENT_IS_NODE ? {'protocol': subProtocols.toString()} : subProtocols;
              }
  
              // some webservers (azure) does not support subprotocol header
              if (runtimeConfig && null === Module['websocket']['subprotocol']) {
                subProtocols = 'null';
                opts = undefined;
              }
  
              // If node we use the ws library.
              var WebSocketConstructor;
              if (ENVIRONMENT_IS_NODE) {
                WebSocketConstructor = /** @type{(typeof WebSocket)} */(require('ws'));
              } else
              {
                WebSocketConstructor = WebSocket;
              }
              ws = new WebSocketConstructor(url, opts);
              ws.binaryType = 'arraybuffer';
            } catch (e) {
              throw new FS.ErrnoError(23);
            }
          }
  
          var peer = {
            addr: addr,
            port: port,
            socket: ws,
            dgram_send_queue: []
          };
  
          SOCKFS.websocket_sock_ops.addPeer(sock, peer);
          SOCKFS.websocket_sock_ops.handlePeerEvents(sock, peer);
  
          // if this is a bound dgram socket, send the port number first to allow
          // us to override the ephemeral port reported to us by remotePort on the
          // remote end.
          if (sock.type === 2 && typeof sock.sport != 'undefined') {
            peer.dgram_send_queue.push(new Uint8Array([
                255, 255, 255, 255,
                'p'.charCodeAt(0), 'o'.charCodeAt(0), 'r'.charCodeAt(0), 't'.charCodeAt(0),
                ((sock.sport & 0xff00) >> 8) , (sock.sport & 0xff)
            ]));
          }
  
          return peer;
        },getPeer:function(sock, addr, port) {
          return sock.peers[addr + ':' + port];
        },addPeer:function(sock, peer) {
          sock.peers[peer.addr + ':' + peer.port] = peer;
        },removePeer:function(sock, peer) {
          delete sock.peers[peer.addr + ':' + peer.port];
        },handlePeerEvents:function(sock, peer) {
          var first = true;
  
          var handleOpen = function () {
  
            Module['websocket'].emit('open', sock.stream.fd);
  
            try {
              var queued = peer.dgram_send_queue.shift();
              while (queued) {
                peer.socket.send(queued);
                queued = peer.dgram_send_queue.shift();
              }
            } catch (e) {
              // not much we can do here in the way of proper error handling as we've already
              // lied and said this data was sent. shut it down.
              peer.socket.close();
            }
          };
  
          function handleMessage(data) {
            if (typeof data == 'string') {
              var encoder = new TextEncoder(); // should be utf-8
              data = encoder.encode(data); // make a typed array from the string
            } else {
              assert(data.byteLength !== undefined); // must receive an ArrayBuffer
              if (data.byteLength == 0) {
                // An empty ArrayBuffer will emit a pseudo disconnect event
                // as recv/recvmsg will return zero which indicates that a socket
                // has performed a shutdown although the connection has not been disconnected yet.
                return;
              } else {
                data = new Uint8Array(data); // make a typed array view on the array buffer
              }
            }
  
            // if this is the port message, override the peer's port with it
            var wasfirst = first;
            first = false;
            if (wasfirst &&
                data.length === 10 &&
                data[0] === 255 && data[1] === 255 && data[2] === 255 && data[3] === 255 &&
                data[4] === 'p'.charCodeAt(0) && data[5] === 'o'.charCodeAt(0) && data[6] === 'r'.charCodeAt(0) && data[7] === 't'.charCodeAt(0)) {
              // update the peer's port and it's key in the peer map
              var newport = ((data[8] << 8) | data[9]);
              SOCKFS.websocket_sock_ops.removePeer(sock, peer);
              peer.port = newport;
              SOCKFS.websocket_sock_ops.addPeer(sock, peer);
              return;
            }
  
            sock.recv_queue.push({ addr: peer.addr, port: peer.port, data: data });
            Module['websocket'].emit('message', sock.stream.fd);
          };
  
          if (ENVIRONMENT_IS_NODE) {
            peer.socket.on('open', handleOpen);
            peer.socket.on('message', function(data, flags) {
              if (!flags.binary) {
                return;
              }
              handleMessage((new Uint8Array(data)).buffer);  // copy from node Buffer -> ArrayBuffer
            });
            peer.socket.on('close', function() {
              Module['websocket'].emit('close', sock.stream.fd);
            });
            peer.socket.on('error', function(error) {
              // Although the ws library may pass errors that may be more descriptive than
              // ECONNREFUSED they are not necessarily the expected error code e.g. 
              // ENOTFOUND on getaddrinfo seems to be node.js specific, so using ECONNREFUSED
              // is still probably the most useful thing to do.
              sock.error = 14; // Used in getsockopt for SOL_SOCKET/SO_ERROR test.
              Module['websocket'].emit('error', [sock.stream.fd, sock.error, 'ECONNREFUSED: Connection refused']);
              // don't throw
            });
          } else {
            peer.socket.onopen = handleOpen;
            peer.socket.onclose = function() {
              Module['websocket'].emit('close', sock.stream.fd);
            };
            peer.socket.onmessage = function peer_socket_onmessage(event) {
              handleMessage(event.data);
            };
            peer.socket.onerror = function(error) {
              // The WebSocket spec only allows a 'simple event' to be thrown on error,
              // so we only really know as much as ECONNREFUSED.
              sock.error = 14; // Used in getsockopt for SOL_SOCKET/SO_ERROR test.
              Module['websocket'].emit('error', [sock.stream.fd, sock.error, 'ECONNREFUSED: Connection refused']);
            };
          }
        },poll:function(sock) {
          if (sock.type === 1 && sock.server) {
            // listen sockets should only say they're available for reading
            // if there are pending clients.
            return sock.pending.length ? (64 | 1) : 0;
          }
  
          var mask = 0;
          var dest = sock.type === 1 ?  // we only care about the socket state for connection-based sockets
            SOCKFS.websocket_sock_ops.getPeer(sock, sock.daddr, sock.dport) :
            null;
  
          if (sock.recv_queue.length ||
              !dest ||  // connection-less sockets are always ready to read
              (dest && dest.socket.readyState === dest.socket.CLOSING) ||
              (dest && dest.socket.readyState === dest.socket.CLOSED)) {  // let recv return 0 once closed
            mask |= (64 | 1);
          }
  
          if (!dest ||  // connection-less sockets are always ready to write
              (dest && dest.socket.readyState === dest.socket.OPEN)) {
            mask |= 4;
          }
  
          if ((dest && dest.socket.readyState === dest.socket.CLOSING) ||
              (dest && dest.socket.readyState === dest.socket.CLOSED)) {
            mask |= 16;
          }
  
          return mask;
        },ioctl:function(sock, request, arg) {
          switch (request) {
            case 21531:
              var bytes = 0;
              if (sock.recv_queue.length) {
                bytes = sock.recv_queue[0].data.length;
              }
              HEAP32[((arg)>>2)] = bytes;
              return 0;
            default:
              return 28;
          }
        },close:function(sock) {
          // if we've spawned a listen server, close it
          if (sock.server) {
            try {
              sock.server.close();
            } catch (e) {
            }
            sock.server = null;
          }
          // close any peer connections
          var peers = Object.keys(sock.peers);
          for (var i = 0; i < peers.length; i++) {
            var peer = sock.peers[peers[i]];
            try {
              peer.socket.close();
            } catch (e) {
            }
            SOCKFS.websocket_sock_ops.removePeer(sock, peer);
          }
          return 0;
        },bind:function(sock, addr, port) {
          if (typeof sock.saddr != 'undefined' || typeof sock.sport != 'undefined') {
            throw new FS.ErrnoError(28);  // already bound
          }
          sock.saddr = addr;
          sock.sport = port;
          // in order to emulate dgram sockets, we need to launch a listen server when
          // binding on a connection-less socket
          // note: this is only required on the server side
          if (sock.type === 2) {
            // close the existing server if it exists
            if (sock.server) {
              sock.server.close();
              sock.server = null;
            }
            // swallow error operation not supported error that occurs when binding in the
            // browser where this isn't supported
            try {
              sock.sock_ops.listen(sock, 0);
            } catch (e) {
              if (!(e instanceof FS.ErrnoError)) throw e;
              if (e.errno !== 138) throw e;
            }
          }
        },connect:function(sock, addr, port) {
          if (sock.server) {
            throw new FS.ErrnoError(138);
          }
  
          // TODO autobind
          // if (!sock.addr && sock.type == 2) {
          // }
  
          // early out if we're already connected / in the middle of connecting
          if (typeof sock.daddr != 'undefined' && typeof sock.dport != 'undefined') {
            var dest = SOCKFS.websocket_sock_ops.getPeer(sock, sock.daddr, sock.dport);
            if (dest) {
              if (dest.socket.readyState === dest.socket.CONNECTING) {
                throw new FS.ErrnoError(7);
              } else {
                throw new FS.ErrnoError(30);
              }
            }
          }
  
          // add the socket to our peer list and set our
          // destination address / port to match
          var peer = SOCKFS.websocket_sock_ops.createPeer(sock, addr, port);
          sock.daddr = peer.addr;
          sock.dport = peer.port;
  
          // always "fail" in non-blocking mode
          throw new FS.ErrnoError(26);
        },listen:function(sock, backlog) {
          if (!ENVIRONMENT_IS_NODE) {
            throw new FS.ErrnoError(138);
          }
          if (sock.server) {
             throw new FS.ErrnoError(28);  // already listening
          }
          var WebSocketServer = require('ws').Server;
          var host = sock.saddr;
          sock.server = new WebSocketServer({
            host: host,
            port: sock.sport
            // TODO support backlog
          });
          Module['websocket'].emit('listen', sock.stream.fd); // Send Event with listen fd.
  
          sock.server.on('connection', function(ws) {
            if (sock.type === 1) {
              var newsock = SOCKFS.createSocket(sock.family, sock.type, sock.protocol);
  
              // create a peer on the new socket
              var peer = SOCKFS.websocket_sock_ops.createPeer(newsock, ws);
              newsock.daddr = peer.addr;
              newsock.dport = peer.port;
  
              // push to queue for accept to pick up
              sock.pending.push(newsock);
              Module['websocket'].emit('connection', newsock.stream.fd);
            } else {
              // create a peer on the listen socket so calling sendto
              // with the listen socket and an address will resolve
              // to the correct client
              SOCKFS.websocket_sock_ops.createPeer(sock, ws);
              Module['websocket'].emit('connection', sock.stream.fd);
            }
          });
          sock.server.on('closed', function() {
            Module['websocket'].emit('close', sock.stream.fd);
            sock.server = null;
          });
          sock.server.on('error', function(error) {
            // Although the ws library may pass errors that may be more descriptive than
            // ECONNREFUSED they are not necessarily the expected error code e.g. 
            // ENOTFOUND on getaddrinfo seems to be node.js specific, so using EHOSTUNREACH
            // is still probably the most useful thing to do. This error shouldn't
            // occur in a well written app as errors should get trapped in the compiled
            // app's own getaddrinfo call.
            sock.error = 23; // Used in getsockopt for SOL_SOCKET/SO_ERROR test.
            Module['websocket'].emit('error', [sock.stream.fd, sock.error, 'EHOSTUNREACH: Host is unreachable']);
            // don't throw
          });
        },accept:function(listensock) {
          if (!listensock.server || !listensock.pending.length) {
            throw new FS.ErrnoError(28);
          }
          var newsock = listensock.pending.shift();
          newsock.stream.flags = listensock.stream.flags;
          return newsock;
        },getname:function(sock, peer) {
          var addr, port;
          if (peer) {
            if (sock.daddr === undefined || sock.dport === undefined) {
              throw new FS.ErrnoError(53);
            }
            addr = sock.daddr;
            port = sock.dport;
          } else {
            // TODO saddr and sport will be set for bind()'d UDP sockets, but what
            // should we be returning for TCP sockets that've been connect()'d?
            addr = sock.saddr || 0;
            port = sock.sport || 0;
          }
          return { addr: addr, port: port };
        },sendmsg:function(sock, buffer, offset, length, addr, port) {
          if (sock.type === 2) {
            // connection-less sockets will honor the message address,
            // and otherwise fall back to the bound destination address
            if (addr === undefined || port === undefined) {
              addr = sock.daddr;
              port = sock.dport;
            }
            // if there was no address to fall back to, error out
            if (addr === undefined || port === undefined) {
              throw new FS.ErrnoError(17);
            }
          } else {
            // connection-based sockets will only use the bound
            addr = sock.daddr;
            port = sock.dport;
          }
  
          // find the peer for the destination address
          var dest = SOCKFS.websocket_sock_ops.getPeer(sock, addr, port);
  
          // early out if not connected with a connection-based socket
          if (sock.type === 1) {
            if (!dest || dest.socket.readyState === dest.socket.CLOSING || dest.socket.readyState === dest.socket.CLOSED) {
              throw new FS.ErrnoError(53);
            } else if (dest.socket.readyState === dest.socket.CONNECTING) {
              throw new FS.ErrnoError(6);
            }
          }
  
          // create a copy of the incoming data to send, as the WebSocket API
          // doesn't work entirely with an ArrayBufferView, it'll just send
          // the entire underlying buffer
          if (ArrayBuffer.isView(buffer)) {
            offset += buffer.byteOffset;
            buffer = buffer.buffer;
          }
  
          var data;
            data = buffer.slice(offset, offset + length);
  
          // if we're emulating a connection-less dgram socket and don't have
          // a cached connection, queue the buffer to send upon connect and
          // lie, saying the data was sent now.
          if (sock.type === 2) {
            if (!dest || dest.socket.readyState !== dest.socket.OPEN) {
              // if we're not connected, open a new connection
              if (!dest || dest.socket.readyState === dest.socket.CLOSING || dest.socket.readyState === dest.socket.CLOSED) {
                dest = SOCKFS.websocket_sock_ops.createPeer(sock, addr, port);
              }
              dest.dgram_send_queue.push(data);
              return length;
            }
          }
  
          try {
            // send the actual data
            dest.socket.send(data);
            return length;
          } catch (e) {
            throw new FS.ErrnoError(28);
          }
        },recvmsg:function(sock, length) {
          // http://pubs.opengroup.org/onlinepubs/7908799/xns/recvmsg.html
          if (sock.type === 1 && sock.server) {
            // tcp servers should not be recv()'ing on the listen socket
            throw new FS.ErrnoError(53);
          }
  
          var queued = sock.recv_queue.shift();
          if (!queued) {
            if (sock.type === 1) {
              var dest = SOCKFS.websocket_sock_ops.getPeer(sock, sock.daddr, sock.dport);
  
              if (!dest) {
                // if we have a destination address but are not connected, error out
                throw new FS.ErrnoError(53);
              }
              else if (dest.socket.readyState === dest.socket.CLOSING || dest.socket.readyState === dest.socket.CLOSED) {
                // return null if the socket has closed
                return null;
              }
              else {
                // else, our socket is in a valid state but truly has nothing available
                throw new FS.ErrnoError(6);
              }
            } else {
              throw new FS.ErrnoError(6);
            }
          }
  
          // queued.data will be an ArrayBuffer if it's unadulterated, but if it's
          // requeued TCP data it'll be an ArrayBufferView
          var queuedLength = queued.data.byteLength || queued.data.length;
          var queuedOffset = queued.data.byteOffset || 0;
          var queuedBuffer = queued.data.buffer || queued.data;
          var bytesRead = Math.min(length, queuedLength);
          var res = {
            buffer: new Uint8Array(queuedBuffer, queuedOffset, bytesRead),
            addr: queued.addr,
            port: queued.port
          };
  
          // push back any unread data for TCP connections
          if (sock.type === 1 && bytesRead < queuedLength) {
            var bytesRemaining = queuedLength - bytesRead;
            queued.data = new Uint8Array(queuedBuffer, queuedOffset + bytesRead, bytesRemaining);
            sock.recv_queue.unshift(queued);
          }
  
          return res;
        }}};
  function getSocketFromFD(fd) {
      var socket = SOCKFS.getSocket(fd);
      if (!socket) throw new FS.ErrnoError(8);
      return socket;
    }
  
  function setErrNo(value) {
      HEAP32[((___errno_location())>>2)] = value;
      return value;
    }
  var Sockets = {BUFFER_SIZE:10240,MAX_BUFFER_SIZE:10485760,nextFd:1,fds:{},nextport:1,maxport:65535,peer:null,connections:{},portmap:{},localAddr:4261412874,addrPool:[33554442,50331658,67108874,83886090,100663306,117440522,134217738,150994954,167772170,184549386,201326602,218103818,234881034]};
  
  function inetPton4(str) {
      var b = str.split('.');
      for (var i = 0; i < 4; i++) {
        var tmp = Number(b[i]);
        if (isNaN(tmp)) return null;
        b[i] = tmp;
      }
      return (b[0] | (b[1] << 8) | (b[2] << 16) | (b[3] << 24)) >>> 0;
    }
  
  /** @suppress {checkTypes} */
  function jstoi_q(str) {
      return parseInt(str);
    }
  function inetPton6(str) {
      var words;
      var w, offset, z, i;
      /* http://home.deds.nl/~aeron/regex/ */
      var valid6regx = /^((?=.*::)(?!.*::.+::)(::)?([\dA-F]{1,4}:(:|\b)|){5}|([\dA-F]{1,4}:){6})((([\dA-F]{1,4}((?!\3)::|:\b|$))|(?!\2\3)){2}|(((2[0-4]|1\d|[1-9])?\d|25[0-5])\.?\b){4})$/i
      var parts = [];
      if (!valid6regx.test(str)) {
        return null;
      }
      if (str === "::") {
        return [0, 0, 0, 0, 0, 0, 0, 0];
      }
      // Z placeholder to keep track of zeros when splitting the string on ":"
      if (str.startsWith("::")) {
        str = str.replace("::", "Z:"); // leading zeros case
      } else {
        str = str.replace("::", ":Z:");
      }
  
      if (str.indexOf(".") > 0) {
        // parse IPv4 embedded stress
        str = str.replace(new RegExp('[.]', 'g'), ":");
        words = str.split(":");
        words[words.length-4] = jstoi_q(words[words.length-4]) + jstoi_q(words[words.length-3])*256;
        words[words.length-3] = jstoi_q(words[words.length-2]) + jstoi_q(words[words.length-1])*256;
        words = words.slice(0, words.length-2);
      } else {
        words = str.split(":");
      }
  
      offset = 0; z = 0;
      for (w=0; w < words.length; w++) {
        if (typeof words[w] == 'string') {
          if (words[w] === 'Z') {
            // compressed zeros - write appropriate number of zero words
            for (z = 0; z < (8 - words.length+1); z++) {
              parts[w+z] = 0;
            }
            offset = z-1;
          } else {
            // parse hex to field to 16-bit value and write it in network byte-order
            parts[w+offset] = _htons(parseInt(words[w],16));
          }
        } else {
          // parsed IPv4 words
          parts[w+offset] = words[w];
        }
      }
      return [
        (parts[1] << 16) | parts[0],
        (parts[3] << 16) | parts[2],
        (parts[5] << 16) | parts[4],
        (parts[7] << 16) | parts[6]
      ];
    }
  /** @param {number=} addrlen */
  function writeSockaddr(sa, family, addr, port, addrlen) {
      switch (family) {
        case 2:
          addr = inetPton4(addr);
          zeroMemory(sa, 16);
          if (addrlen) {
            HEAP32[((addrlen)>>2)] = 16;
          }
          HEAP16[((sa)>>1)] = family;
          HEAP32[(((sa)+(4))>>2)] = addr;
          HEAP16[(((sa)+(2))>>1)] = _htons(port);
          break;
        case 10:
          addr = inetPton6(addr);
          zeroMemory(sa, 28);
          if (addrlen) {
            HEAP32[((addrlen)>>2)] = 28;
          }
          HEAP32[((sa)>>2)] = family;
          HEAP32[(((sa)+(8))>>2)] = addr[0];
          HEAP32[(((sa)+(12))>>2)] = addr[1];
          HEAP32[(((sa)+(16))>>2)] = addr[2];
          HEAP32[(((sa)+(20))>>2)] = addr[3];
          HEAP16[(((sa)+(2))>>1)] = _htons(port);
          break;
        default:
          return 5;
      }
      return 0;
    }
  
  var DNS = {address_map:{id:1,addrs:{},names:{}},lookup_name:function (name) {
        // If the name is already a valid ipv4 / ipv6 address, don't generate a fake one.
        var res = inetPton4(name);
        if (res !== null) {
          return name;
        }
        res = inetPton6(name);
        if (res !== null) {
          return name;
        }
  
        // See if this name is already mapped.
        var addr;
  
        if (DNS.address_map.addrs[name]) {
          addr = DNS.address_map.addrs[name];
        } else {
          var id = DNS.address_map.id++;
          assert(id < 65535, 'exceeded max address mappings of 65535');
  
          addr = '172.29.' + (id & 0xff) + '.' + (id & 0xff00);
  
          DNS.address_map.names[addr] = name;
          DNS.address_map.addrs[name] = addr;
        }
  
        return addr;
      },lookup_addr:function (addr) {
        if (DNS.address_map.names[addr]) {
          return DNS.address_map.names[addr];
        }
  
        return null;
      }};
  function ___syscall_accept4(fd, addr, addrlen, flags) {
  try {
  
      var sock = getSocketFromFD(fd);
      var newsock = sock.sock_ops.accept(sock);
      if (addr) {
        var errno = writeSockaddr(addr, newsock.family, DNS.lookup_name(newsock.daddr), newsock.dport, addrlen);
        assert(!errno);
      }
      return newsock.stream.fd;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_chmod(path, mode) {
  try {
  
      path = SYSCALLS.getStr(path);
      FS.chmod(path, mode);
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function inetNtop4(addr) {
      return (addr & 0xff) + '.' + ((addr >> 8) & 0xff) + '.' + ((addr >> 16) & 0xff) + '.' + ((addr >> 24) & 0xff)
    }
  
  function inetNtop6(ints) {
      //  ref:  http://www.ietf.org/rfc/rfc2373.txt - section 2.5.4
      //  Format for IPv4 compatible and mapped  128-bit IPv6 Addresses
      //  128-bits are split into eight 16-bit words
      //  stored in network byte order (big-endian)
      //  |                80 bits               | 16 |      32 bits        |
      //  +-----------------------------------------------------------------+
      //  |               10 bytes               |  2 |      4 bytes        |
      //  +--------------------------------------+--------------------------+
      //  +               5 words                |  1 |      2 words        |
      //  +--------------------------------------+--------------------------+
      //  |0000..............................0000|0000|    IPv4 ADDRESS     | (compatible)
      //  +--------------------------------------+----+---------------------+
      //  |0000..............................0000|FFFF|    IPv4 ADDRESS     | (mapped)
      //  +--------------------------------------+----+---------------------+
      var str = "";
      var word = 0;
      var longest = 0;
      var lastzero = 0;
      var zstart = 0;
      var len = 0;
      var i = 0;
      var parts = [
        ints[0] & 0xffff,
        (ints[0] >> 16),
        ints[1] & 0xffff,
        (ints[1] >> 16),
        ints[2] & 0xffff,
        (ints[2] >> 16),
        ints[3] & 0xffff,
        (ints[3] >> 16)
      ];
  
      // Handle IPv4-compatible, IPv4-mapped, loopback and any/unspecified addresses
  
      var hasipv4 = true;
      var v4part = "";
      // check if the 10 high-order bytes are all zeros (first 5 words)
      for (i = 0; i < 5; i++) {
        if (parts[i] !== 0) { hasipv4 = false; break; }
      }
  
      if (hasipv4) {
        // low-order 32-bits store an IPv4 address (bytes 13 to 16) (last 2 words)
        v4part = inetNtop4(parts[6] | (parts[7] << 16));
        // IPv4-mapped IPv6 address if 16-bit value (bytes 11 and 12) == 0xFFFF (6th word)
        if (parts[5] === -1) {
          str = "::ffff:";
          str += v4part;
          return str;
        }
        // IPv4-compatible IPv6 address if 16-bit value (bytes 11 and 12) == 0x0000 (6th word)
        if (parts[5] === 0) {
          str = "::";
          //special case IPv6 addresses
          if (v4part === "0.0.0.0") v4part = ""; // any/unspecified address
          if (v4part === "0.0.0.1") v4part = "1";// loopback address
          str += v4part;
          return str;
        }
      }
  
      // Handle all other IPv6 addresses
  
      // first run to find the longest contiguous zero words
      for (word = 0; word < 8; word++) {
        if (parts[word] === 0) {
          if (word - lastzero > 1) {
            len = 0;
          }
          lastzero = word;
          len++;
        }
        if (len > longest) {
          longest = len;
          zstart = word - longest + 1;
        }
      }
  
      for (word = 0; word < 8; word++) {
        if (longest > 1) {
          // compress contiguous zeros - to produce "::"
          if (parts[word] === 0 && word >= zstart && word < (zstart + longest) ) {
            if (word === zstart) {
              str += ":";
              if (zstart === 0) str += ":"; //leading zeros case
            }
            continue;
          }
        }
        // converts 16-bit words from big-endian to little-endian before converting to hex string
        str += Number(_ntohs(parts[word] & 0xffff)).toString(16);
        str += word < 7 ? ":" : "";
      }
      return str;
    }
  function readSockaddr(sa, salen) {
      // family / port offsets are common to both sockaddr_in and sockaddr_in6
      var family = HEAP16[((sa)>>1)];
      var port = _ntohs(HEAPU16[(((sa)+(2))>>1)]);
      var addr;
  
      switch (family) {
        case 2:
          if (salen !== 16) {
            return { errno: 28 };
          }
          addr = HEAP32[(((sa)+(4))>>2)];
          addr = inetNtop4(addr);
          break;
        case 10:
          if (salen !== 28) {
            return { errno: 28 };
          }
          addr = [
            HEAP32[(((sa)+(8))>>2)],
            HEAP32[(((sa)+(12))>>2)],
            HEAP32[(((sa)+(16))>>2)],
            HEAP32[(((sa)+(20))>>2)]
          ];
          addr = inetNtop6(addr);
          break;
        default:
          return { errno: 5 };
      }
  
      return { family: family, addr: addr, port: port };
    }
  /** @param {boolean=} allowNull */
  function getSocketAddress(addrp, addrlen, allowNull) {
      if (allowNull && addrp === 0) return null;
      var info = readSockaddr(addrp, addrlen);
      if (info.errno) throw new FS.ErrnoError(info.errno);
      info.addr = DNS.lookup_addr(info.addr) || info.addr;
      return info;
    }
  function ___syscall_connect(fd, addr, addrlen) {
  try {
  
      var sock = getSocketFromFD(fd);
      var info = getSocketAddress(addr, addrlen);
      sock.sock_ops.connect(sock, info.addr, info.port);
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_faccessat(dirfd, path, amode, flags) {
  try {
  
      path = SYSCALLS.getStr(path);
      assert(flags === 0);
      path = SYSCALLS.calculateAt(dirfd, path);
      return SYSCALLS.doAccess(path, amode);
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_fcntl64(fd, cmd, varargs) {
  SYSCALLS.varargs = varargs;
  try {
  
      var stream = SYSCALLS.getStreamFromFD(fd);
      switch (cmd) {
        case 0: {
          var arg = SYSCALLS.get();
          if (arg < 0) {
            return -28;
          }
          var newStream;
          newStream = FS.open(stream.path, stream.flags, 0, arg);
          return newStream.fd;
        }
        case 1:
        case 2:
          return 0;  // FD_CLOEXEC makes no sense for a single process.
        case 3:
          return stream.flags;
        case 4: {
          var arg = SYSCALLS.get();
          stream.flags |= arg;
          return 0;
        }
        case 5:
        /* case 5: Currently in musl F_GETLK64 has same value as F_GETLK, so omitted to avoid duplicate case blocks. If that changes, uncomment this */ {
          
          var arg = SYSCALLS.get();
          var offset = 0;
          // We're always unlocked.
          HEAP16[(((arg)+(offset))>>1)] = 2;
          return 0;
        }
        case 6:
        case 7:
        /* case 6: Currently in musl F_SETLK64 has same value as F_SETLK, so omitted to avoid duplicate case blocks. If that changes, uncomment this */
        /* case 7: Currently in musl F_SETLKW64 has same value as F_SETLKW, so omitted to avoid duplicate case blocks. If that changes, uncomment this */
          
          
          return 0; // Pretend that the locking is successful.
        case 16:
        case 8:
          return -28; // These are for sockets. We don't have them fully implemented yet.
        case 9:
          // musl trusts getown return values, due to a bug where they must be, as they overlap with errors. just return -1 here, so fnctl() returns that, and we set errno ourselves.
          setErrNo(28);
          return -1;
        default: {
          return -28;
        }
      }
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_fstat64(fd, buf) {
  try {
  
      var stream = SYSCALLS.getStreamFromFD(fd);
      return SYSCALLS.doStat(FS.stat, stream.path, buf);
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_getcwd(buf, size) {
  try {
  
      if (size === 0) return -28;
      var cwd = FS.cwd();
      var cwdLengthInBytes = lengthBytesUTF8(cwd);
      if (size < cwdLengthInBytes + 1) return -68;
      stringToUTF8(cwd, buf, size);
      return buf;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_getdents64(fd, dirp, count) {
  try {
  
      var stream = SYSCALLS.getStreamFromFD(fd)
      if (!stream.getdents) {
        stream.getdents = FS.readdir(stream.path);
      }
  
      var struct_size = 280;
      var pos = 0;
      var off = FS.llseek(stream, 0, 1);
  
      var idx = Math.floor(off / struct_size);
  
      while (idx < stream.getdents.length && pos + struct_size <= count) {
        var id;
        var type;
        var name = stream.getdents[idx];
        if (name === '.') {
          id = stream.node.id;
          type = 4; // DT_DIR
        }
        else if (name === '..') {
          var lookup = FS.lookupPath(stream.path, { parent: true });
          id = lookup.node.id;
          type = 4; // DT_DIR
        }
        else {
          var child = FS.lookupNode(stream.node, name);
          id = child.id;
          type = FS.isChrdev(child.mode) ? 2 :  // DT_CHR, character device.
                 FS.isDir(child.mode) ? 4 :     // DT_DIR, directory.
                 FS.isLink(child.mode) ? 10 :   // DT_LNK, symbolic link.
                 8;                             // DT_REG, regular file.
        }
        assert(id);
        (tempI64 = [id>>>0,(tempDouble=id,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math.min((+(Math.floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[((dirp + pos)>>2)] = tempI64[0],HEAP32[(((dirp + pos)+(4))>>2)] = tempI64[1]);
        (tempI64 = [(idx + 1) * struct_size>>>0,(tempDouble=(idx + 1) * struct_size,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math.min((+(Math.floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[(((dirp + pos)+(8))>>2)] = tempI64[0],HEAP32[(((dirp + pos)+(12))>>2)] = tempI64[1]);
        HEAP16[(((dirp + pos)+(16))>>1)] = 280;
        HEAP8[(((dirp + pos)+(18))>>0)] = type;
        stringToUTF8(name, dirp + pos + 19, 256);
        pos += struct_size;
        idx += 1;
      }
      FS.llseek(stream, idx * struct_size, 0);
      return pos;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_getsockopt(fd, level, optname, optval, optlen) {
  try {
  
      var sock = getSocketFromFD(fd);
      // Minimal getsockopt aimed at resolving https://github.com/emscripten-core/emscripten/issues/2211
      // so only supports SOL_SOCKET with SO_ERROR.
      if (level === 1) {
        if (optname === 4) {
          HEAP32[((optval)>>2)] = sock.error;
          HEAP32[((optlen)>>2)] = 4;
          sock.error = null; // Clear the error (The SO_ERROR option obtains and then clears this field).
          return 0;
        }
      }
      return -50; // The option is unknown at the level indicated.
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_ioctl(fd, op, varargs) {
  SYSCALLS.varargs = varargs;
  try {
  
      var stream = SYSCALLS.getStreamFromFD(fd);
      switch (op) {
        case 21509:
        case 21505: {
          if (!stream.tty) return -59;
          return 0;
        }
        case 21510:
        case 21511:
        case 21512:
        case 21506:
        case 21507:
        case 21508: {
          if (!stream.tty) return -59;
          return 0; // no-op, not actually adjusting terminal settings
        }
        case 21519: {
          if (!stream.tty) return -59;
          var argp = SYSCALLS.get();
          HEAP32[((argp)>>2)] = 0;
          return 0;
        }
        case 21520: {
          if (!stream.tty) return -59;
          return -28; // not supported
        }
        case 21531: {
          var argp = SYSCALLS.get();
          return FS.ioctl(stream, op, argp);
        }
        case 21523: {
          // TODO: in theory we should write to the winsize struct that gets
          // passed in, but for now musl doesn't read anything on it
          if (!stream.tty) return -59;
          return 0;
        }
        case 21524: {
          // TODO: technically, this ioctl call should change the window size.
          // but, since emscripten doesn't have any concept of a terminal window
          // yet, we'll just silently throw it away as we do TIOCGWINSZ
          if (!stream.tty) return -59;
          return 0;
        }
        default: abort('bad ioctl syscall ' + op);
      }
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_lstat64(path, buf) {
  try {
  
      path = SYSCALLS.getStr(path);
      return SYSCALLS.doStat(FS.lstat, path, buf);
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_mkdir(path, mode) {
  try {
  
      path = SYSCALLS.getStr(path);
      return SYSCALLS.doMkdir(path, mode);
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_newfstatat(dirfd, path, buf, flags) {
  try {
  
      path = SYSCALLS.getStr(path);
      var nofollow = flags & 256;
      var allowEmpty = flags & 4096;
      flags = flags & (~4352);
      assert(!flags, flags);
      path = SYSCALLS.calculateAt(dirfd, path, allowEmpty);
      return SYSCALLS.doStat(nofollow ? FS.lstat : FS.stat, path, buf);
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_openat(dirfd, path, flags, varargs) {
  SYSCALLS.varargs = varargs;
  try {
  
      path = SYSCALLS.getStr(path);
      path = SYSCALLS.calculateAt(dirfd, path);
      var mode = varargs ? SYSCALLS.get() : 0;
      return FS.open(path, flags, mode).fd;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_readlinkat(dirfd, path, buf, bufsize) {
  try {
  
      path = SYSCALLS.getStr(path);
      path = SYSCALLS.calculateAt(dirfd, path);
      return SYSCALLS.doReadlink(path, buf, bufsize);
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_recvfrom(fd, buf, len, flags, addr, addrlen) {
  try {
  
      var sock = getSocketFromFD(fd);
      var msg = sock.sock_ops.recvmsg(sock, len);
      if (!msg) return 0; // socket is closed
      if (addr) {
        var errno = writeSockaddr(addr, sock.family, DNS.lookup_name(msg.addr), msg.port, addrlen);
        assert(!errno);
      }
      HEAPU8.set(msg.buffer, buf);
      return msg.buffer.byteLength;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_renameat(olddirfd, oldpath, newdirfd, newpath) {
  try {
  
      oldpath = SYSCALLS.getStr(oldpath);
      newpath = SYSCALLS.getStr(newpath);
      oldpath = SYSCALLS.calculateAt(olddirfd, oldpath);
      newpath = SYSCALLS.calculateAt(newdirfd, newpath);
      FS.rename(oldpath, newpath);
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_rmdir(path) {
  try {
  
      path = SYSCALLS.getStr(path);
      FS.rmdir(path);
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_sendto(fd, message, length, flags, addr, addr_len) {
  try {
  
      var sock = getSocketFromFD(fd);
      var dest = getSocketAddress(addr, addr_len, true);
      if (!dest) {
        // send, no address provided
        return FS.write(sock.stream, HEAP8,message, length);
      } else {
        // sendto an address
        return sock.sock_ops.sendmsg(sock, HEAP8,message, length, dest.addr, dest.port);
      }
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_socket(domain, type, protocol) {
  try {
  
      var sock = SOCKFS.createSocket(domain, type, protocol);
      assert(sock.stream.fd < 64); // XXX ? select() assumes socket fd values are in 0..63
      return sock.stream.fd;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_stat64(path, buf) {
  try {
  
      path = SYSCALLS.getStr(path);
      return SYSCALLS.doStat(FS.stat, path, buf);
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_statfs64(path, size, buf) {
  try {
  
      path = SYSCALLS.getStr(path);
      assert(size === 64);
      // NOTE: None of the constants here are true. We're just returning safe and
      //       sane values.
      HEAP32[(((buf)+(4))>>2)] = 4096;
      HEAP32[(((buf)+(40))>>2)] = 4096;
      HEAP32[(((buf)+(8))>>2)] = 1000000;
      HEAP32[(((buf)+(12))>>2)] = 500000;
      HEAP32[(((buf)+(16))>>2)] = 500000;
      HEAP32[(((buf)+(20))>>2)] = FS.nextInode;
      HEAP32[(((buf)+(24))>>2)] = 1000000;
      HEAP32[(((buf)+(28))>>2)] = 42;
      HEAP32[(((buf)+(44))>>2)] = 2;  // ST_NOSUID
      HEAP32[(((buf)+(36))>>2)] = 255;
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_truncate64(path, low, high) {
  try {
  
      path = SYSCALLS.getStr(path);
      var length = SYSCALLS.get64(low, high);
      FS.truncate(path, length);
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_unlinkat(dirfd, path, flags) {
  try {
  
      path = SYSCALLS.getStr(path);
      path = SYSCALLS.calculateAt(dirfd, path);
      if (flags === 0) {
        FS.unlink(path);
      } else if (flags === 512) {
        FS.rmdir(path);
      } else {
        abort('Invalid flags passed to unlinkat');
      }
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function ___syscall_utimensat(dirfd, path, times, flags) {
  try {
  
      path = SYSCALLS.getStr(path);
      assert(flags === 0);
      path = SYSCALLS.calculateAt(dirfd, path, true);
      if (!times) {
        var atime = Date.now();
        var mtime = atime;
      } else {
        var seconds = HEAP32[((times)>>2)];
        var nanoseconds = HEAP32[(((times)+(4))>>2)];
        atime = (seconds*1000) + (nanoseconds/(1000*1000));
        times += 8;
        seconds = HEAP32[((times)>>2)];
        nanoseconds = HEAP32[(((times)+(4))>>2)];
        mtime = (seconds*1000) + (nanoseconds/(1000*1000));
      }
      FS.utime(path, atime, mtime);
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  var dlopen_main_init = 0;
  function __dlopen_js(handle) {
  		warnOnce('Unable to open DLL! Dynamic linking is not supported in WebAssembly builds due to limitations to performance and code size. Please statically link in the needed libraries.');
  		// Do not abort here - IL2CPP will throw a managed exception.
  
  		// Return dummy success for the first dlopen since that is the __main__ module (so it gets past its assert checks),
  		// and false otherwise. TODO: After Emscripten is updated to a version newer than 3.1.8-unity, this logic can be
  		// dropped: https://github.com/emscripten-core/emscripten/issues/16790
  		var ret = !dlopen_main_init;
  		dlopen_main_init = 1;
  		return ret;
  	}

  function __dlsym_js(handle, symbol) {
  		return 0;
  	}

  function __emscripten_date_now() {
      return Date.now();
    }

  var nowIsMonotonic = true;;
  function __emscripten_get_now_is_monotonic() {
      return nowIsMonotonic;
    }

  function __gmtime_js(time, tmPtr) {
      var date = new Date(HEAP32[((time)>>2)]*1000);
      HEAP32[((tmPtr)>>2)] = date.getUTCSeconds();
      HEAP32[(((tmPtr)+(4))>>2)] = date.getUTCMinutes();
      HEAP32[(((tmPtr)+(8))>>2)] = date.getUTCHours();
      HEAP32[(((tmPtr)+(12))>>2)] = date.getUTCDate();
      HEAP32[(((tmPtr)+(16))>>2)] = date.getUTCMonth();
      HEAP32[(((tmPtr)+(20))>>2)] = date.getUTCFullYear()-1900;
      HEAP32[(((tmPtr)+(24))>>2)] = date.getUTCDay();
      var start = Date.UTC(date.getUTCFullYear(), 0, 1, 0, 0, 0, 0);
      var yday = ((date.getTime() - start) / (1000 * 60 * 60 * 24))|0;
      HEAP32[(((tmPtr)+(28))>>2)] = yday;
    }

  function __localtime_js(time, tmPtr) {
      var date = new Date(HEAP32[((time)>>2)]*1000);
      HEAP32[((tmPtr)>>2)] = date.getSeconds();
      HEAP32[(((tmPtr)+(4))>>2)] = date.getMinutes();
      HEAP32[(((tmPtr)+(8))>>2)] = date.getHours();
      HEAP32[(((tmPtr)+(12))>>2)] = date.getDate();
      HEAP32[(((tmPtr)+(16))>>2)] = date.getMonth();
      HEAP32[(((tmPtr)+(20))>>2)] = date.getFullYear()-1900;
      HEAP32[(((tmPtr)+(24))>>2)] = date.getDay();
  
      var start = new Date(date.getFullYear(), 0, 1);
      var yday = ((date.getTime() - start.getTime()) / (1000 * 60 * 60 * 24))|0;
      HEAP32[(((tmPtr)+(28))>>2)] = yday;
      HEAP32[(((tmPtr)+(36))>>2)] = -(date.getTimezoneOffset() * 60);
  
      // Attention: DST is in December in South, and some regions don't have DST at all.
      var summerOffset = new Date(date.getFullYear(), 6, 1).getTimezoneOffset();
      var winterOffset = start.getTimezoneOffset();
      var dst = (summerOffset != winterOffset && date.getTimezoneOffset() == Math.min(winterOffset, summerOffset))|0;
      HEAP32[(((tmPtr)+(32))>>2)] = dst;
    }

  function __mktime_js(tmPtr) {
      var date = new Date(HEAP32[(((tmPtr)+(20))>>2)] + 1900,
                          HEAP32[(((tmPtr)+(16))>>2)],
                          HEAP32[(((tmPtr)+(12))>>2)],
                          HEAP32[(((tmPtr)+(8))>>2)],
                          HEAP32[(((tmPtr)+(4))>>2)],
                          HEAP32[((tmPtr)>>2)],
                          0);
  
      // There's an ambiguous hour when the time goes back; the tm_isdst field is
      // used to disambiguate it.  Date() basically guesses, so we fix it up if it
      // guessed wrong, or fill in tm_isdst with the guess if it's -1.
      var dst = HEAP32[(((tmPtr)+(32))>>2)];
      var guessedOffset = date.getTimezoneOffset();
      var start = new Date(date.getFullYear(), 0, 1);
      var summerOffset = new Date(date.getFullYear(), 6, 1).getTimezoneOffset();
      var winterOffset = start.getTimezoneOffset();
      var dstOffset = Math.min(winterOffset, summerOffset); // DST is in December in South
      if (dst < 0) {
        // Attention: some regions don't have DST at all.
        HEAP32[(((tmPtr)+(32))>>2)] = Number(summerOffset != winterOffset && dstOffset == guessedOffset);
      } else if ((dst > 0) != (dstOffset == guessedOffset)) {
        var nonDstOffset = Math.max(winterOffset, summerOffset);
        var trueOffset = dst > 0 ? dstOffset : nonDstOffset;
        // Don't try setMinutes(date.getMinutes() + ...) -- it's messed up.
        date.setTime(date.getTime() + (trueOffset - guessedOffset)*60000);
      }
  
      HEAP32[(((tmPtr)+(24))>>2)] = date.getDay();
      var yday = ((date.getTime() - start.getTime()) / (1000 * 60 * 60 * 24))|0;
      HEAP32[(((tmPtr)+(28))>>2)] = yday;
      // To match expected behavior, update fields from date
      HEAP32[((tmPtr)>>2)] = date.getSeconds();
      HEAP32[(((tmPtr)+(4))>>2)] = date.getMinutes();
      HEAP32[(((tmPtr)+(8))>>2)] = date.getHours();
      HEAP32[(((tmPtr)+(12))>>2)] = date.getDate();
      HEAP32[(((tmPtr)+(16))>>2)] = date.getMonth();
  
      return (date.getTime() / 1000)|0;
    }

  function __mmap_js(addr, len, prot, flags, fd, off, allocated, builtin) {
  try {
  
      var info = FS.getStream(fd);
      if (!info) return -8;
      var res = FS.mmap(info, addr, len, off, prot, flags);
      var ptr = res.ptr;
      HEAP32[((allocated)>>2)] = res.allocated;
      return ptr;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function __munmap_js(addr, len, prot, flags, fd, offset) {
  try {
  
      var stream = FS.getStream(fd);
      if (stream) {
        if (prot & 2) {
          SYSCALLS.doMsync(addr, stream, len, flags, offset);
        }
        FS.munmap(stream);
      }
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return -e.errno;
  }
  }

  function _tzset_impl(timezone, daylight, tzname) {
      var currentYear = new Date().getFullYear();
      var winter = new Date(currentYear, 0, 1);
      var summer = new Date(currentYear, 6, 1);
      var winterOffset = winter.getTimezoneOffset();
      var summerOffset = summer.getTimezoneOffset();
  
      // Local standard timezone offset. Local standard time is not adjusted for daylight savings.
      // This code uses the fact that getTimezoneOffset returns a greater value during Standard Time versus Daylight Saving Time (DST).
      // Thus it determines the expected output during Standard Time, and it compares whether the output of the given date the same (Standard) or less (DST).
      var stdTimezoneOffset = Math.max(winterOffset, summerOffset);
  
      // timezone is specified as seconds west of UTC ("The external variable
      // `timezone` shall be set to the difference, in seconds, between
      // Coordinated Universal Time (UTC) and local standard time."), the same
      // as returned by stdTimezoneOffset.
      // See http://pubs.opengroup.org/onlinepubs/009695399/functions/tzset.html
      HEAP32[((timezone)>>2)] = stdTimezoneOffset * 60;
  
      HEAP32[((daylight)>>2)] = Number(winterOffset != summerOffset);
  
      function extractZone(date) {
        var match = date.toTimeString().match(/\(([A-Za-z ]+)\)$/);
        return match ? match[1] : "GMT";
      };
      var winterName = extractZone(winter);
      var summerName = extractZone(summer);
      var winterNamePtr = allocateUTF8(winterName);
      var summerNamePtr = allocateUTF8(summerName);
      if (summerOffset < winterOffset) {
        // Northern hemisphere
        HEAP32[((tzname)>>2)] = winterNamePtr;
        HEAP32[(((tzname)+(4))>>2)] = summerNamePtr;
      } else {
        HEAP32[((tzname)>>2)] = summerNamePtr;
        HEAP32[(((tzname)+(4))>>2)] = winterNamePtr;
      }
    }
  function __tzset_js(timezone, daylight, tzname) {
      // TODO: Use (malleable) environment variables instead of system settings.
      if (__tzset_js.called) return;
      __tzset_js.called = true;
      _tzset_impl(timezone, daylight, tzname);
    }

  function _abort() {
      abort('native code called abort()');
    }

  var readAsmConstArgsArray = [];
  function readAsmConstArgs(sigPtr, buf) {
      ;
      // Nobody should have mutated _readAsmConstArgsArray underneath us to be something else than an array.
      assert(Array.isArray(readAsmConstArgsArray));
      // The input buffer is allocated on the stack, so it must be stack-aligned.
      assert(buf % 16 == 0);
      readAsmConstArgsArray.length = 0;
      var ch;
      // Most arguments are i32s, so shift the buffer pointer so it is a plain
      // index into HEAP32.
      buf >>= 2;
      while (ch = HEAPU8[sigPtr++]) {
        assert(ch === 100/*'d'*/ || ch === 102/*'f'*/ || ch === 105 /*'i'*/, 'Invalid character ' + ch + '("' + String.fromCharCode(ch) + '") in readAsmConstArgs! Use only "d", "f" or "i", and do not specify "v" for void return argument.');
        // A double takes two 32-bit slots, and must also be aligned - the backend
        // will emit padding to avoid that.
        var readAsmConstArgsDouble = ch < 105;
        if (readAsmConstArgsDouble && (buf & 1)) buf++;
        readAsmConstArgsArray.push(readAsmConstArgsDouble ? HEAPF64[buf++ >> 1] : HEAP32[buf]);
        ++buf;
      }
      return readAsmConstArgsArray;
    }
  function _emscripten_asm_const_int(code, sigPtr, argbuf) {
      var args = readAsmConstArgs(sigPtr, argbuf);
      if (!ASM_CONSTS.hasOwnProperty(code)) abort('No EM_ASM constant found at address ' + code);
      return ASM_CONSTS[code].apply(null, args);
    }

  function mainThreadEM_ASM(code, sigPtr, argbuf, sync) {
      var args = readAsmConstArgs(sigPtr, argbuf);
      if (!ASM_CONSTS.hasOwnProperty(code)) abort('No EM_ASM constant found at address ' + code);
      return ASM_CONSTS[code].apply(null, args);
    }
  function _emscripten_asm_const_int_sync_on_main_thread(code, sigPtr, argbuf) {
      return mainThreadEM_ASM(code, sigPtr, argbuf, 1);
    }

  function _emscripten_set_main_loop_timing(mode, value) {
      Browser.mainLoop.timingMode = mode;
      Browser.mainLoop.timingValue = value;
  
      if (!Browser.mainLoop.func) {
        err('emscripten_set_main_loop_timing: Cannot set timing mode for main loop since a main loop does not exist! Call emscripten_set_main_loop first to set one up.');
        return 1; // Return non-zero on failure, can't set timing mode when there is no main loop.
      }
  
      if (!Browser.mainLoop.running) {
        
        Browser.mainLoop.running = true;
      }
      if (mode == 0 /*EM_TIMING_SETTIMEOUT*/) {
        Browser.mainLoop.scheduler = function Browser_mainLoop_scheduler_setTimeout() {
          var timeUntilNextTick = Math.max(0, Browser.mainLoop.tickStartTime + value - _emscripten_get_now())|0;
          setTimeout(Browser.mainLoop.runner, timeUntilNextTick); // doing this each time means that on exception, we stop
        };
        Browser.mainLoop.method = 'timeout';
      } else if (mode == 1 /*EM_TIMING_RAF*/) {
        Browser.mainLoop.scheduler = function Browser_mainLoop_scheduler_rAF() {
          Browser.requestAnimationFrame(Browser.mainLoop.runner);
        };
        Browser.mainLoop.method = 'rAF';
      } else if (mode == 2 /*EM_TIMING_SETIMMEDIATE*/) {
        if (typeof setImmediate == 'undefined') {
          // Emulate setImmediate. (note: not a complete polyfill, we don't emulate clearImmediate() to keep code size to minimum, since not needed)
          var setImmediates = [];
          var emscriptenMainLoopMessageId = 'setimmediate';
          var Browser_setImmediate_messageHandler = function(/** @type {Event} */ event) {
            // When called in current thread or Worker, the main loop ID is structured slightly different to accommodate for --proxy-to-worker runtime listening to Worker events,
            // so check for both cases.
            if (event.data === emscriptenMainLoopMessageId || event.data.target === emscriptenMainLoopMessageId) {
              event.stopPropagation();
              setImmediates.shift()();
            }
          }
          addEventListener("message", Browser_setImmediate_messageHandler, true);
          setImmediate = /** @type{function(function(): ?, ...?): number} */(function Browser_emulated_setImmediate(func) {
            setImmediates.push(func);
            if (ENVIRONMENT_IS_WORKER) {
              if (Module['setImmediates'] === undefined) Module['setImmediates'] = [];
              Module['setImmediates'].push(func);
              postMessage({target: emscriptenMainLoopMessageId}); // In --proxy-to-worker, route the message via proxyClient.js
            } else postMessage(emscriptenMainLoopMessageId, "*"); // On the main thread, can just send the message to itself.
          })
        }
        Browser.mainLoop.scheduler = function Browser_mainLoop_scheduler_setImmediate() {
          setImmediate(Browser.mainLoop.runner);
        };
        Browser.mainLoop.method = 'immediate';
      }
      return 0;
    }
  
  var _emscripten_get_now;if (ENVIRONMENT_IS_NODE) {
    _emscripten_get_now = () => {
      var t = process['hrtime']();
      return t[0] * 1e3 + t[1] / 1e6;
    };
  } else _emscripten_get_now = () => performance.now();
  ;
  
  function runtimeKeepalivePush() {
    }
  
  function _exit(status) {
      // void _exit(int status);
      // http://pubs.opengroup.org/onlinepubs/000095399/functions/exit.html
      exit(status);
    }
  function maybeExit() {
    }
  
    /**
     * @param {number=} arg
     * @param {boolean=} noSetTiming
     */
  function setMainLoop(browserIterationFunc, fps, simulateInfiniteLoop, arg, noSetTiming) {
      assert(!Browser.mainLoop.func, 'emscripten_set_main_loop: there can only be one main loop function at once: call emscripten_cancel_main_loop to cancel the previous one before setting a new one with different parameters.');
  
      Browser.mainLoop.func = browserIterationFunc;
      Browser.mainLoop.arg = arg;
  
      var thisMainLoopId = Browser.mainLoop.currentlyRunningMainloop;
      function checkIsRunning() {
        if (thisMainLoopId < Browser.mainLoop.currentlyRunningMainloop) {
          
          maybeExit();
          return false;
        }
        return true;
      }
  
      // We create the loop runner here but it is not actually running until
      // _emscripten_set_main_loop_timing is called (which might happen a
      // later time).  This member signifies that the current runner has not
      // yet been started so that we can call runtimeKeepalivePush when it
      // gets it timing set for the first time.
      Browser.mainLoop.running = false;
      Browser.mainLoop.runner = function Browser_mainLoop_runner() {
        if (ABORT) return;
        if (Browser.mainLoop.queue.length > 0) {
          var start = Date.now();
          var blocker = Browser.mainLoop.queue.shift();
          blocker.func(blocker.arg);
          if (Browser.mainLoop.remainingBlockers) {
            var remaining = Browser.mainLoop.remainingBlockers;
            var next = remaining%1 == 0 ? remaining-1 : Math.floor(remaining);
            if (blocker.counted) {
              Browser.mainLoop.remainingBlockers = next;
            } else {
              // not counted, but move the progress along a tiny bit
              next = next + 0.5; // do not steal all the next one's progress
              Browser.mainLoop.remainingBlockers = (8*remaining + next)/9;
            }
          }
          out('main loop blocker "' + blocker.name + '" took ' + (Date.now() - start) + ' ms'); //, left: ' + Browser.mainLoop.remainingBlockers);
          Browser.mainLoop.updateStatus();
  
          // catches pause/resume main loop from blocker execution
          if (!checkIsRunning()) return;
  
          setTimeout(Browser.mainLoop.runner, 0);
          return;
        }
  
        // catch pauses from non-main loop sources
        if (!checkIsRunning()) return;
  
        // Implement very basic swap interval control
        Browser.mainLoop.currentFrameNumber = Browser.mainLoop.currentFrameNumber + 1 | 0;
        if (Browser.mainLoop.timingMode == 1/*EM_TIMING_RAF*/ && Browser.mainLoop.timingValue > 1 && Browser.mainLoop.currentFrameNumber % Browser.mainLoop.timingValue != 0) {
          // Not the scheduled time to render this frame - skip.
          Browser.mainLoop.scheduler();
          return;
        } else if (Browser.mainLoop.timingMode == 0/*EM_TIMING_SETTIMEOUT*/) {
          Browser.mainLoop.tickStartTime = _emscripten_get_now();
        }
  
        // Signal GL rendering layer that processing of a new frame is about to start. This helps it optimize
        // VBO double-buffering and reduce GPU stalls.
        GL.newRenderingFrameStarted();
  
        if (Browser.mainLoop.method === 'timeout' && Module.ctx) {
          warnOnce('Looks like you are rendering without using requestAnimationFrame for the main loop. You should use 0 for the frame rate in emscripten_set_main_loop in order to use requestAnimationFrame, as that can greatly improve your frame rates!');
          Browser.mainLoop.method = ''; // just warn once per call to set main loop
        }
  
        Browser.mainLoop.runIter(browserIterationFunc);
  
        checkStackCookie();
  
        // catch pauses from the main loop itself
        if (!checkIsRunning()) return;
  
        // Queue new audio data. This is important to be right after the main loop invocation, so that we will immediately be able
        // to queue the newest produced audio samples.
        // TODO: Consider adding pre- and post- rAF callbacks so that GL.newRenderingFrameStarted() and SDL.audio.queueNewAudioData()
        //       do not need to be hardcoded into this function, but can be more generic.
        if (typeof SDL == 'object' && SDL.audio && SDL.audio.queueNewAudioData) SDL.audio.queueNewAudioData();
  
        Browser.mainLoop.scheduler();
      }
  
      if (!noSetTiming) {
        if (fps && fps > 0) _emscripten_set_main_loop_timing(0/*EM_TIMING_SETTIMEOUT*/, 1000.0 / fps);
        else _emscripten_set_main_loop_timing(1/*EM_TIMING_RAF*/, 1); // Do rAF by rendering each frame (no decimating)
  
        Browser.mainLoop.scheduler();
      }
  
      if (simulateInfiniteLoop) {
        throw 'unwind';
      }
    }
  
  /** @param {boolean=} synchronous */
  function callUserCallback(func, synchronous) {
      if (ABORT) {
        err('user callback triggered after runtime exited or application aborted.  Ignoring.');
        return;
      }
      // For synchronous calls, let any exceptions propagate, and don't let the runtime exit.
      if (synchronous) {
        func();
        return;
      }
      try {
        func();
      } catch (e) {
        handleException(e);
      }
    }
  
  function runtimeKeepalivePop() {
    }
  /** @param {number=} timeout */
  function safeSetTimeout(func, timeout) {
      
      return setTimeout(function() {
        
        callUserCallback(func);
      }, timeout);
    }
  var Browser = {mainLoop:{running:false,scheduler:null,method:"",currentlyRunningMainloop:0,func:null,arg:0,timingMode:0,timingValue:0,currentFrameNumber:0,queue:[],pause:function() {
          Browser.mainLoop.scheduler = null;
          // Incrementing this signals the previous main loop that it's now become old, and it must return.
          Browser.mainLoop.currentlyRunningMainloop++;
        },resume:function() {
          Browser.mainLoop.currentlyRunningMainloop++;
          var timingMode = Browser.mainLoop.timingMode;
          var timingValue = Browser.mainLoop.timingValue;
          var func = Browser.mainLoop.func;
          Browser.mainLoop.func = null;
          // do not set timing and call scheduler, we will do it on the next lines
          setMainLoop(func, 0, false, Browser.mainLoop.arg, true);
          _emscripten_set_main_loop_timing(timingMode, timingValue);
          Browser.mainLoop.scheduler();
        },updateStatus:function() {
          if (Module['setStatus']) {
            var message = Module['statusMessage'] || 'Please wait...';
            var remaining = Browser.mainLoop.remainingBlockers;
            var expected = Browser.mainLoop.expectedBlockers;
            if (remaining) {
              if (remaining < expected) {
                Module['setStatus'](message + ' (' + (expected - remaining) + '/' + expected + ')');
              } else {
                Module['setStatus'](message);
              }
            } else {
              Module['setStatus']('');
            }
          }
        },runIter:function(func) {
          if (ABORT) return;
          if (Module['preMainLoop']) {
            var preRet = Module['preMainLoop']();
            if (preRet === false) {
              return; // |return false| skips a frame
            }
          }
          callUserCallback(func);
          if (Module['postMainLoop']) Module['postMainLoop']();
        }},isFullscreen:false,pointerLock:false,moduleContextCreatedCallbacks:[],workers:[],init:function() {
        if (!Module["preloadPlugins"]) Module["preloadPlugins"] = []; // needs to exist even in workers
  
        if (Browser.initted) return;
        Browser.initted = true;
  
        try {
          new Blob();
          Browser.hasBlobConstructor = true;
        } catch(e) {
          Browser.hasBlobConstructor = false;
          out("warning: no blob constructor, cannot create blobs with mimetypes");
        }
        Browser.BlobBuilder = typeof MozBlobBuilder != "undefined" ? MozBlobBuilder : (typeof WebKitBlobBuilder != "undefined" ? WebKitBlobBuilder : (!Browser.hasBlobConstructor ? out("warning: no BlobBuilder") : null));
        Browser.URLObject = typeof window != "undefined" ? (window.URL ? window.URL : window.webkitURL) : undefined;
        if (!Module.noImageDecoding && typeof Browser.URLObject == 'undefined') {
          out("warning: Browser does not support creating object URLs. Built-in browser image decoding will not be available.");
          Module.noImageDecoding = true;
        }
  
        // Support for plugins that can process preloaded files. You can add more of these to
        // your app by creating and appending to Module.preloadPlugins.
        //
        // Each plugin is asked if it can handle a file based on the file's name. If it can,
        // it is given the file's raw data. When it is done, it calls a callback with the file's
        // (possibly modified) data. For example, a plugin might decompress a file, or it
        // might create some side data structure for use later (like an Image element, etc.).
  
        var imagePlugin = {};
        imagePlugin['canHandle'] = function imagePlugin_canHandle(name) {
          return !Module.noImageDecoding && /\.(jpg|jpeg|png|bmp)$/i.test(name);
        };
        imagePlugin['handle'] = function imagePlugin_handle(byteArray, name, onload, onerror) {
          var b = null;
          if (Browser.hasBlobConstructor) {
            try {
              b = new Blob([byteArray], { type: Browser.getMimetype(name) });
              if (b.size !== byteArray.length) { // Safari bug #118630
                // Safari's Blob can only take an ArrayBuffer
                b = new Blob([(new Uint8Array(byteArray)).buffer], { type: Browser.getMimetype(name) });
              }
            } catch(e) {
              warnOnce('Blob constructor present but fails: ' + e + '; falling back to blob builder');
            }
          }
          if (!b) {
            var bb = new Browser.BlobBuilder();
            bb.append((new Uint8Array(byteArray)).buffer); // we need to pass a buffer, and must copy the array to get the right data range
            b = bb.getBlob();
          }
          var url = Browser.URLObject.createObjectURL(b);
          assert(typeof url == 'string', 'createObjectURL must return a url as a string');
          var img = new Image();
          img.onload = () => {
            assert(img.complete, 'Image ' + name + ' could not be decoded');
            var canvas = /** @type {!HTMLCanvasElement} */ (document.createElement('canvas'));
            canvas.width = img.width;
            canvas.height = img.height;
            var ctx = canvas.getContext('2d');
            ctx.drawImage(img, 0, 0);
            Module["preloadedImages"][name] = canvas;
            Browser.URLObject.revokeObjectURL(url);
            if (onload) onload(byteArray);
          };
          img.onerror = (event) => {
            out('Image ' + url + ' could not be decoded');
            if (onerror) onerror();
          };
          img.src = url;
        };
        Module['preloadPlugins'].push(imagePlugin);
  
        var audioPlugin = {};
        audioPlugin['canHandle'] = function audioPlugin_canHandle(name) {
          return !Module.noAudioDecoding && name.substr(-4) in { '.ogg': 1, '.wav': 1, '.mp3': 1 };
        };
        audioPlugin['handle'] = function audioPlugin_handle(byteArray, name, onload, onerror) {
          var done = false;
          function finish(audio) {
            if (done) return;
            done = true;
            Module["preloadedAudios"][name] = audio;
            if (onload) onload(byteArray);
          }
          function fail() {
            if (done) return;
            done = true;
            Module["preloadedAudios"][name] = new Audio(); // empty shim
            if (onerror) onerror();
          }
          if (Browser.hasBlobConstructor) {
            try {
              var b = new Blob([byteArray], { type: Browser.getMimetype(name) });
            } catch(e) {
              return fail();
            }
            var url = Browser.URLObject.createObjectURL(b); // XXX we never revoke this!
            assert(typeof url == 'string', 'createObjectURL must return a url as a string');
            var audio = new Audio();
            audio.addEventListener('canplaythrough', function() { finish(audio) }, false); // use addEventListener due to chromium bug 124926
            audio.onerror = function audio_onerror(event) {
              if (done) return;
              out('warning: browser could not fully decode audio ' + name + ', trying slower base64 approach');
              function encode64(data) {
                var BASE = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
                var PAD = '=';
                var ret = '';
                var leftchar = 0;
                var leftbits = 0;
                for (var i = 0; i < data.length; i++) {
                  leftchar = (leftchar << 8) | data[i];
                  leftbits += 8;
                  while (leftbits >= 6) {
                    var curr = (leftchar >> (leftbits-6)) & 0x3f;
                    leftbits -= 6;
                    ret += BASE[curr];
                  }
                }
                if (leftbits == 2) {
                  ret += BASE[(leftchar&3) << 4];
                  ret += PAD + PAD;
                } else if (leftbits == 4) {
                  ret += BASE[(leftchar&0xf) << 2];
                  ret += PAD;
                }
                return ret;
              }
              audio.src = 'data:audio/x-' + name.substr(-3) + ';base64,' + encode64(byteArray);
              finish(audio); // we don't wait for confirmation this worked - but it's worth trying
            };
            audio.src = url;
            // workaround for chrome bug 124926 - we do not always get oncanplaythrough or onerror
            safeSetTimeout(function() {
              finish(audio); // try to use it even though it is not necessarily ready to play
            }, 10000);
          } else {
            return fail();
          }
        };
        Module['preloadPlugins'].push(audioPlugin);
  
        // Canvas event setup
  
        function pointerLockChange() {
          Browser.pointerLock = document['pointerLockElement'] === Module['canvas'] ||
                                document['mozPointerLockElement'] === Module['canvas'] ||
                                document['webkitPointerLockElement'] === Module['canvas'] ||
                                document['msPointerLockElement'] === Module['canvas'];
        }
        var canvas = Module['canvas'];
        if (canvas) {
          // forced aspect ratio can be enabled by defining 'forcedAspectRatio' on Module
          // Module['forcedAspectRatio'] = 4 / 3;
  
          canvas.requestPointerLock = canvas['requestPointerLock'] ||
                                      canvas['mozRequestPointerLock'] ||
                                      canvas['webkitRequestPointerLock'] ||
                                      canvas['msRequestPointerLock'] ||
                                      function(){};
          canvas.exitPointerLock = document['exitPointerLock'] ||
                                   document['mozExitPointerLock'] ||
                                   document['webkitExitPointerLock'] ||
                                   document['msExitPointerLock'] ||
                                   function(){}; // no-op if function does not exist
          canvas.exitPointerLock = canvas.exitPointerLock.bind(document);
  
          document.addEventListener('pointerlockchange', pointerLockChange, false);
          document.addEventListener('mozpointerlockchange', pointerLockChange, false);
          document.addEventListener('webkitpointerlockchange', pointerLockChange, false);
          document.addEventListener('mspointerlockchange', pointerLockChange, false);
  
          if (Module['elementPointerLock']) {
            canvas.addEventListener("click", function(ev) {
              if (!Browser.pointerLock && Module['canvas'].requestPointerLock) {
                Module['canvas'].requestPointerLock();
                ev.preventDefault();
              }
            }, false);
          }
        }
      },handledByPreloadPlugin:function(byteArray, fullname, finish, onerror) {
        // Ensure plugins are ready.
        Browser.init();
  
        var handled = false;
        Module['preloadPlugins'].forEach(function(plugin) {
          if (handled) return;
          if (plugin['canHandle'](fullname)) {
            plugin['handle'](byteArray, fullname, finish, onerror);
            handled = true;
          }
        });
        return handled;
      },createContext:function(/** @type {HTMLCanvasElement} */ canvas, useWebGL, setInModule, webGLContextAttributes) {
        if (useWebGL && Module.ctx && canvas == Module.canvas) return Module.ctx; // no need to recreate GL context if it's already been created for this canvas.
  
        var ctx;
        var contextHandle;
        if (useWebGL) {
          // For GLES2/desktop GL compatibility, adjust a few defaults to be different to WebGL defaults, so that they align better with the desktop defaults.
          var contextAttributes = {
            antialias: false,
            alpha: false,
            majorVersion: (typeof WebGL2RenderingContext != 'undefined') ? 2 : 1,
          };
  
          if (webGLContextAttributes) {
            for (var attribute in webGLContextAttributes) {
              contextAttributes[attribute] = webGLContextAttributes[attribute];
            }
          }
  
          // This check of existence of GL is here to satisfy Closure compiler, which yells if variable GL is referenced below but GL object is not
          // actually compiled in because application is not doing any GL operations. TODO: Ideally if GL is not being used, this function
          // Browser.createContext() should not even be emitted.
          if (typeof GL != 'undefined') {
            contextHandle = GL.createContext(canvas, contextAttributes);
            if (contextHandle) {
              ctx = GL.getContext(contextHandle).GLctx;
            }
          }
        } else {
          ctx = canvas.getContext('2d');
        }
  
        if (!ctx) return null;
  
        if (setInModule) {
          if (!useWebGL) assert(typeof GLctx == 'undefined', 'cannot set in module if GLctx is used, but we are a non-GL context that would replace it');
  
          Module.ctx = ctx;
          if (useWebGL) GL.makeContextCurrent(contextHandle);
          Module.useWebGL = useWebGL;
          Browser.moduleContextCreatedCallbacks.forEach(function(callback) { callback() });
          Browser.init();
        }
        return ctx;
      },destroyContext:function(canvas, useWebGL, setInModule) {},fullscreenHandlersInstalled:false,lockPointer:undefined,resizeCanvas:undefined,requestFullscreen:function(lockPointer, resizeCanvas) {
        Browser.lockPointer = lockPointer;
        Browser.resizeCanvas = resizeCanvas;
        if (typeof Browser.lockPointer == 'undefined') Browser.lockPointer = true;
        if (typeof Browser.resizeCanvas == 'undefined') Browser.resizeCanvas = false;
  
        var canvas = Module['canvas'];
        function fullscreenChange() {
          Browser.isFullscreen = false;
          var canvasContainer = canvas.parentNode;
          if ((document['fullscreenElement'] || document['mozFullScreenElement'] ||
               document['msFullscreenElement'] || document['webkitFullscreenElement'] ||
               document['webkitCurrentFullScreenElement']) === canvasContainer) {
            canvas.exitFullscreen = Browser.exitFullscreen;
            if (Browser.lockPointer) canvas.requestPointerLock();
            Browser.isFullscreen = true;
            if (Browser.resizeCanvas) {
              Browser.setFullscreenCanvasSize();
            } else {
              Browser.updateCanvasDimensions(canvas);
            }
          } else {
            // remove the full screen specific parent of the canvas again to restore the HTML structure from before going full screen
            canvasContainer.parentNode.insertBefore(canvas, canvasContainer);
            canvasContainer.parentNode.removeChild(canvasContainer);
  
            if (Browser.resizeCanvas) {
              Browser.setWindowedCanvasSize();
            } else {
              Browser.updateCanvasDimensions(canvas);
            }
          }
          if (Module['onFullScreen']) Module['onFullScreen'](Browser.isFullscreen);
          if (Module['onFullscreen']) Module['onFullscreen'](Browser.isFullscreen);
        }
  
        if (!Browser.fullscreenHandlersInstalled) {
          Browser.fullscreenHandlersInstalled = true;
          document.addEventListener('fullscreenchange', fullscreenChange, false);
          document.addEventListener('mozfullscreenchange', fullscreenChange, false);
          document.addEventListener('webkitfullscreenchange', fullscreenChange, false);
          document.addEventListener('MSFullscreenChange', fullscreenChange, false);
        }
  
        // create a new parent to ensure the canvas has no siblings. this allows browsers to optimize full screen performance when its parent is the full screen root
        var canvasContainer = document.createElement("div");
        canvas.parentNode.insertBefore(canvasContainer, canvas);
        canvasContainer.appendChild(canvas);
  
        // use parent of canvas as full screen root to allow aspect ratio correction (Firefox stretches the root to screen size)
        canvasContainer.requestFullscreen = canvasContainer['requestFullscreen'] ||
                                            canvasContainer['mozRequestFullScreen'] ||
                                            canvasContainer['msRequestFullscreen'] ||
                                           (canvasContainer['webkitRequestFullscreen'] ? function() { canvasContainer['webkitRequestFullscreen'](Element['ALLOW_KEYBOARD_INPUT']) } : null) ||
                                           (canvasContainer['webkitRequestFullScreen'] ? function() { canvasContainer['webkitRequestFullScreen'](Element['ALLOW_KEYBOARD_INPUT']) } : null);
  
        canvasContainer.requestFullscreen();
      },requestFullScreen:function() {
        abort('Module.requestFullScreen has been replaced by Module.requestFullscreen (without a capital S)');
      },exitFullscreen:function() {
        // This is workaround for chrome. Trying to exit from fullscreen
        // not in fullscreen state will cause "TypeError: Document not active"
        // in chrome. See https://github.com/emscripten-core/emscripten/pull/8236
        if (!Browser.isFullscreen) {
          return false;
        }
  
        var CFS = document['exitFullscreen'] ||
                  document['cancelFullScreen'] ||
                  document['mozCancelFullScreen'] ||
                  document['msExitFullscreen'] ||
                  document['webkitCancelFullScreen'] ||
            (function() {});
        CFS.apply(document, []);
        return true;
      },nextRAF:0,fakeRequestAnimationFrame:function(func) {
        // try to keep 60fps between calls to here
        var now = Date.now();
        if (Browser.nextRAF === 0) {
          Browser.nextRAF = now + 1000/60;
        } else {
          while (now + 2 >= Browser.nextRAF) { // fudge a little, to avoid timer jitter causing us to do lots of delay:0
            Browser.nextRAF += 1000/60;
          }
        }
        var delay = Math.max(Browser.nextRAF - now, 0);
        setTimeout(func, delay);
      },requestAnimationFrame:function(func) {
        if (typeof requestAnimationFrame == 'function') {
          requestAnimationFrame(func);
          return;
        }
        var RAF = Browser.fakeRequestAnimationFrame;
        RAF(func);
      },safeSetTimeout:function(func) {
        // Legacy function, this is used by the SDL2 port so we need to keep it
        // around at least until that is updated.
        return safeSetTimeout(func);
      },safeRequestAnimationFrame:function(func) {
        
        return Browser.requestAnimationFrame(function() {
          
          callUserCallback(func);
        });
      },getMimetype:function(name) {
        return {
          'jpg': 'image/jpeg',
          'jpeg': 'image/jpeg',
          'png': 'image/png',
          'bmp': 'image/bmp',
          'ogg': 'audio/ogg',
          'wav': 'audio/wav',
          'mp3': 'audio/mpeg'
        }[name.substr(name.lastIndexOf('.')+1)];
      },getUserMedia:function(func) {
        if (!window.getUserMedia) {
          window.getUserMedia = navigator['getUserMedia'] ||
                                navigator['mozGetUserMedia'];
        }
        window.getUserMedia(func);
      },getMovementX:function(event) {
        return event['movementX'] ||
               event['mozMovementX'] ||
               event['webkitMovementX'] ||
               0;
      },getMovementY:function(event) {
        return event['movementY'] ||
               event['mozMovementY'] ||
               event['webkitMovementY'] ||
               0;
      },getMouseWheelDelta:function(event) {
        var delta = 0;
        switch (event.type) {
          case 'DOMMouseScroll':
            // 3 lines make up a step
            delta = event.detail / 3;
            break;
          case 'mousewheel':
            // 120 units make up a step
            delta = event.wheelDelta / 120;
            break;
          case 'wheel':
            delta = event.deltaY
            switch (event.deltaMode) {
              case 0:
                // DOM_DELTA_PIXEL: 100 pixels make up a step
                delta /= 100;
                break;
              case 1:
                // DOM_DELTA_LINE: 3 lines make up a step
                delta /= 3;
                break;
              case 2:
                // DOM_DELTA_PAGE: A page makes up 80 steps
                delta *= 80;
                break;
              default:
                throw 'unrecognized mouse wheel delta mode: ' + event.deltaMode;
            }
            break;
          default:
            throw 'unrecognized mouse wheel event: ' + event.type;
        }
        return delta;
      },mouseX:0,mouseY:0,mouseMovementX:0,mouseMovementY:0,touches:{},lastTouches:{},calculateMouseEvent:function(event) { // event should be mousemove, mousedown or mouseup
        if (Browser.pointerLock) {
          // When the pointer is locked, calculate the coordinates
          // based on the movement of the mouse.
          // Workaround for Firefox bug 764498
          if (event.type != 'mousemove' &&
              ('mozMovementX' in event)) {
            Browser.mouseMovementX = Browser.mouseMovementY = 0;
          } else {
            Browser.mouseMovementX = Browser.getMovementX(event);
            Browser.mouseMovementY = Browser.getMovementY(event);
          }
  
          // check if SDL is available
          if (typeof SDL != "undefined") {
            Browser.mouseX = SDL.mouseX + Browser.mouseMovementX;
            Browser.mouseY = SDL.mouseY + Browser.mouseMovementY;
          } else {
            // just add the mouse delta to the current absolut mouse position
            // FIXME: ideally this should be clamped against the canvas size and zero
            Browser.mouseX += Browser.mouseMovementX;
            Browser.mouseY += Browser.mouseMovementY;
          }
        } else {
          // Otherwise, calculate the movement based on the changes
          // in the coordinates.
          var rect = Module["canvas"].getBoundingClientRect();
          var cw = Module["canvas"].width;
          var ch = Module["canvas"].height;
  
          // Neither .scrollX or .pageXOffset are defined in a spec, but
          // we prefer .scrollX because it is currently in a spec draft.
          // (see: http://www.w3.org/TR/2013/WD-cssom-view-20131217/)
          var scrollX = ((typeof window.scrollX != 'undefined') ? window.scrollX : window.pageXOffset);
          var scrollY = ((typeof window.scrollY != 'undefined') ? window.scrollY : window.pageYOffset);
          // If this assert lands, it's likely because the browser doesn't support scrollX or pageXOffset
          // and we have no viable fallback.
          assert((typeof scrollX != 'undefined') && (typeof scrollY != 'undefined'), 'Unable to retrieve scroll position, mouse positions likely broken.');
  
          if (event.type === 'touchstart' || event.type === 'touchend' || event.type === 'touchmove') {
            var touch = event.touch;
            if (touch === undefined) {
              return; // the "touch" property is only defined in SDL
  
            }
            var adjustedX = touch.pageX - (scrollX + rect.left);
            var adjustedY = touch.pageY - (scrollY + rect.top);
  
            adjustedX = adjustedX * (cw / rect.width);
            adjustedY = adjustedY * (ch / rect.height);
  
            var coords = { x: adjustedX, y: adjustedY };
  
            if (event.type === 'touchstart') {
              Browser.lastTouches[touch.identifier] = coords;
              Browser.touches[touch.identifier] = coords;
            } else if (event.type === 'touchend' || event.type === 'touchmove') {
              var last = Browser.touches[touch.identifier];
              if (!last) last = coords;
              Browser.lastTouches[touch.identifier] = last;
              Browser.touches[touch.identifier] = coords;
            }
            return;
          }
  
          var x = event.pageX - (scrollX + rect.left);
          var y = event.pageY - (scrollY + rect.top);
  
          // the canvas might be CSS-scaled compared to its backbuffer;
          // SDL-using content will want mouse coordinates in terms
          // of backbuffer units.
          x = x * (cw / rect.width);
          y = y * (ch / rect.height);
  
          Browser.mouseMovementX = x - Browser.mouseX;
          Browser.mouseMovementY = y - Browser.mouseY;
          Browser.mouseX = x;
          Browser.mouseY = y;
        }
      },resizeListeners:[],updateResizeListeners:function() {
        var canvas = Module['canvas'];
        Browser.resizeListeners.forEach(function(listener) {
          listener(canvas.width, canvas.height);
        });
      },setCanvasSize:function(width, height, noUpdates) {
        var canvas = Module['canvas'];
        Browser.updateCanvasDimensions(canvas, width, height);
        if (!noUpdates) Browser.updateResizeListeners();
      },windowedWidth:0,windowedHeight:0,setFullscreenCanvasSize:function() {
        // check if SDL is available
        if (typeof SDL != "undefined") {
          var flags = HEAPU32[((SDL.screen)>>2)];
          flags = flags | 0x00800000; // set SDL_FULLSCREEN flag
          HEAP32[((SDL.screen)>>2)] = flags;
        }
        Browser.updateCanvasDimensions(Module['canvas']);
        Browser.updateResizeListeners();
      },setWindowedCanvasSize:function() {
        // check if SDL is available
        if (typeof SDL != "undefined") {
          var flags = HEAPU32[((SDL.screen)>>2)];
          flags = flags & ~0x00800000; // clear SDL_FULLSCREEN flag
          HEAP32[((SDL.screen)>>2)] = flags;
        }
        Browser.updateCanvasDimensions(Module['canvas']);
        Browser.updateResizeListeners();
      },updateCanvasDimensions:function(canvas, wNative, hNative) {
        if (wNative && hNative) {
          canvas.widthNative = wNative;
          canvas.heightNative = hNative;
        } else {
          wNative = canvas.widthNative;
          hNative = canvas.heightNative;
        }
        var w = wNative;
        var h = hNative;
        if (Module['forcedAspectRatio'] && Module['forcedAspectRatio'] > 0) {
          if (w/h < Module['forcedAspectRatio']) {
            w = Math.round(h * Module['forcedAspectRatio']);
          } else {
            h = Math.round(w / Module['forcedAspectRatio']);
          }
        }
        if (((document['fullscreenElement'] || document['mozFullScreenElement'] ||
             document['msFullscreenElement'] || document['webkitFullscreenElement'] ||
             document['webkitCurrentFullScreenElement']) === canvas.parentNode) && (typeof screen != 'undefined')) {
           var factor = Math.min(screen.width / w, screen.height / h);
           w = Math.round(w * factor);
           h = Math.round(h * factor);
        }
        if (Browser.resizeCanvas) {
          if (canvas.width  != w) canvas.width  = w;
          if (canvas.height != h) canvas.height = h;
          if (typeof canvas.style != 'undefined') {
            canvas.style.removeProperty( "width");
            canvas.style.removeProperty("height");
          }
        } else {
          if (canvas.width  != wNative) canvas.width  = wNative;
          if (canvas.height != hNative) canvas.height = hNative;
          if (typeof canvas.style != 'undefined') {
            if (w != wNative || h != hNative) {
              canvas.style.setProperty( "width", w + "px", "important");
              canvas.style.setProperty("height", h + "px", "important");
            } else {
              canvas.style.removeProperty( "width");
              canvas.style.removeProperty("height");
            }
          }
        }
      }};
  function _emscripten_cancel_main_loop() {
      Browser.mainLoop.pause();
      Browser.mainLoop.func = null;
    }

  function _emscripten_clear_interval(id) {
      
      clearInterval(id);
    }

  function _emscripten_console_error(str) {
      assert(typeof str == 'number');
      console.error(UTF8ToString(str));
    }

  var JSEvents = {inEventHandler:0,removeAllEventListeners:function() {
        for (var i = JSEvents.eventHandlers.length-1; i >= 0; --i) {
          JSEvents._removeHandler(i);
        }
        JSEvents.eventHandlers = [];
        JSEvents.deferredCalls = [];
      },registerRemoveEventListeners:function() {
        if (!JSEvents.removeEventListenersRegistered) {
          __ATEXIT__.push(JSEvents.removeAllEventListeners);
          JSEvents.removeEventListenersRegistered = true;
        }
      },deferredCalls:[],deferCall:function(targetFunction, precedence, argsList) {
        function arraysHaveEqualContent(arrA, arrB) {
          if (arrA.length != arrB.length) return false;
  
          for (var i in arrA) {
            if (arrA[i] != arrB[i]) return false;
          }
          return true;
        }
        // Test if the given call was already queued, and if so, don't add it again.
        for (var i in JSEvents.deferredCalls) {
          var call = JSEvents.deferredCalls[i];
          if (call.targetFunction == targetFunction && arraysHaveEqualContent(call.argsList, argsList)) {
            return;
          }
        }
        JSEvents.deferredCalls.push({
          targetFunction: targetFunction,
          precedence: precedence,
          argsList: argsList
        });
  
        JSEvents.deferredCalls.sort(function(x,y) { return x.precedence < y.precedence; });
      },removeDeferredCalls:function(targetFunction) {
        for (var i = 0; i < JSEvents.deferredCalls.length; ++i) {
          if (JSEvents.deferredCalls[i].targetFunction == targetFunction) {
            JSEvents.deferredCalls.splice(i, 1);
            --i;
          }
        }
      },canPerformEventHandlerRequests:function() {
        return JSEvents.inEventHandler && JSEvents.currentEventHandler.allowsDeferredCalls;
      },runDeferredCalls:function() {
        if (!JSEvents.canPerformEventHandlerRequests()) {
          return;
        }
        for (var i = 0; i < JSEvents.deferredCalls.length; ++i) {
          var call = JSEvents.deferredCalls[i];
          JSEvents.deferredCalls.splice(i, 1);
          --i;
          call.targetFunction.apply(null, call.argsList);
        }
      },eventHandlers:[],removeAllHandlersOnTarget:function(target, eventTypeString) {
        for (var i = 0; i < JSEvents.eventHandlers.length; ++i) {
          if (JSEvents.eventHandlers[i].target == target && 
            (!eventTypeString || eventTypeString == JSEvents.eventHandlers[i].eventTypeString)) {
             JSEvents._removeHandler(i--);
           }
        }
      },_removeHandler:function(i) {
        var h = JSEvents.eventHandlers[i];
        h.target.removeEventListener(h.eventTypeString, h.eventListenerFunc, h.useCapture);
        JSEvents.eventHandlers.splice(i, 1);
      },registerOrRemoveHandler:function(eventHandler) {
        var jsEventHandler = function jsEventHandler(event) {
          // Increment nesting count for the event handler.
          ++JSEvents.inEventHandler;
          JSEvents.currentEventHandler = eventHandler;
          // Process any old deferred calls the user has placed.
          JSEvents.runDeferredCalls();
          // Process the actual event, calls back to user C code handler.
          eventHandler.handlerFunc(event);
          // Process any new deferred calls that were placed right now from this event handler.
          JSEvents.runDeferredCalls();
          // Out of event handler - restore nesting count.
          --JSEvents.inEventHandler;
        };
        
        if (eventHandler.callbackfunc) {
          eventHandler.eventListenerFunc = jsEventHandler;
          eventHandler.target.addEventListener(eventHandler.eventTypeString, jsEventHandler, eventHandler.useCapture);
          JSEvents.eventHandlers.push(eventHandler);
          JSEvents.registerRemoveEventListeners();
        } else {
          for (var i = 0; i < JSEvents.eventHandlers.length; ++i) {
            if (JSEvents.eventHandlers[i].target == eventHandler.target
             && JSEvents.eventHandlers[i].eventTypeString == eventHandler.eventTypeString) {
               JSEvents._removeHandler(i--);
             }
          }
        }
      },getNodeNameForTarget:function(target) {
        if (!target) return '';
        if (target == window) return '#window';
        if (target == screen) return '#screen';
        return (target && target.nodeName) ? target.nodeName : '';
      },fullscreenEnabled:function() {
        return document.fullscreenEnabled
        // Safari 13.0.3 on macOS Catalina 10.15.1 still ships with prefixed webkitFullscreenEnabled.
        // TODO: If Safari at some point ships with unprefixed version, update the version check above.
        || document.webkitFullscreenEnabled
         ;
      }};
  
  var currentFullscreenStrategy = {};
  
  function maybeCStringToJsString(cString) {
      // "cString > 2" checks if the input is a number, and isn't of the special
      // values we accept here, EMSCRIPTEN_EVENT_TARGET_* (which map to 0, 1, 2).
      // In other words, if cString > 2 then it's a pointer to a valid place in
      // memory, and points to a C string.
      return cString > 2 ? UTF8ToString(cString) : cString;
    }
  
  var specialHTMLTargets = [0, typeof document != 'undefined' ? document : 0, typeof window != 'undefined' ? window : 0];
  function findEventTarget(target) {
      target = maybeCStringToJsString(target);
      var domElement = specialHTMLTargets[target] || (typeof document != 'undefined' ? document.querySelector(target) : undefined);
      return domElement;
    }
  function findCanvasEventTarget(target) { return findEventTarget(target); }
  function _emscripten_get_canvas_element_size(target, width, height) {
      var canvas = findCanvasEventTarget(target);
      if (!canvas) return -4;
      HEAP32[((width)>>2)] = canvas.width;
      HEAP32[((height)>>2)] = canvas.height;
    }
  function getCanvasElementSize(target) {
      return withStackSave(function() {
        var w = stackAlloc(8);
        var h = w + 4;
  
        var targetInt = stackAlloc(target.id.length+1);
        stringToUTF8(target.id, targetInt, target.id.length+1);
        var ret = _emscripten_get_canvas_element_size(targetInt, w, h);
        var size = [HEAP32[((w)>>2)], HEAP32[((h)>>2)]];
        return size;
      });
    }
  
  function _emscripten_set_canvas_element_size(target, width, height) {
      var canvas = findCanvasEventTarget(target);
      if (!canvas) return -4;
      canvas.width = width;
      canvas.height = height;
      return 0;
    }
  function setCanvasElementSize(target, width, height) {
      if (!target.controlTransferredOffscreen) {
        target.width = width;
        target.height = height;
      } else {
        // This function is being called from high-level JavaScript code instead of asm.js/Wasm,
        // and it needs to synchronously proxy over to another thread, so marshal the string onto the heap to do the call.
        withStackSave(function() {
          var targetInt = stackAlloc(target.id.length+1);
          stringToUTF8(target.id, targetInt, target.id.length+1);
          _emscripten_set_canvas_element_size(targetInt, width, height);
        });
      }
    }
  function registerRestoreOldStyle(canvas) {
      var canvasSize = getCanvasElementSize(canvas);
      var oldWidth = canvasSize[0];
      var oldHeight = canvasSize[1];
      var oldCssWidth = canvas.style.width;
      var oldCssHeight = canvas.style.height;
      var oldBackgroundColor = canvas.style.backgroundColor; // Chrome reads color from here.
      var oldDocumentBackgroundColor = document.body.style.backgroundColor; // IE11 reads color from here.
      // Firefox always has black background color.
      var oldPaddingLeft = canvas.style.paddingLeft; // Chrome, FF, Safari
      var oldPaddingRight = canvas.style.paddingRight;
      var oldPaddingTop = canvas.style.paddingTop;
      var oldPaddingBottom = canvas.style.paddingBottom;
      var oldMarginLeft = canvas.style.marginLeft; // IE11
      var oldMarginRight = canvas.style.marginRight;
      var oldMarginTop = canvas.style.marginTop;
      var oldMarginBottom = canvas.style.marginBottom;
      var oldDocumentBodyMargin = document.body.style.margin;
      var oldDocumentOverflow = document.documentElement.style.overflow; // Chrome, Firefox
      var oldDocumentScroll = document.body.scroll; // IE
      var oldImageRendering = canvas.style.imageRendering;
  
      function restoreOldStyle() {
        var fullscreenElement = document.fullscreenElement
          || document.webkitFullscreenElement
          || document.msFullscreenElement
          ;
        if (!fullscreenElement) {
          document.removeEventListener('fullscreenchange', restoreOldStyle);
  
          // Unprefixed Fullscreen API shipped in Chromium 71 (https://bugs.chromium.org/p/chromium/issues/detail?id=383813)
          // As of Safari 13.0.3 on macOS Catalina 10.15.1 still ships with prefixed webkitfullscreenchange. TODO: revisit this check once Safari ships unprefixed version.
          document.removeEventListener('webkitfullscreenchange', restoreOldStyle);
  
          setCanvasElementSize(canvas, oldWidth, oldHeight);
  
          canvas.style.width = oldCssWidth;
          canvas.style.height = oldCssHeight;
          canvas.style.backgroundColor = oldBackgroundColor; // Chrome
          // IE11 hack: assigning 'undefined' or an empty string to document.body.style.backgroundColor has no effect, so first assign back the default color
          // before setting the undefined value. Setting undefined value is also important, or otherwise we would later treat that as something that the user
          // had explicitly set so subsequent fullscreen transitions would not set background color properly.
          if (!oldDocumentBackgroundColor) document.body.style.backgroundColor = 'white';
          document.body.style.backgroundColor = oldDocumentBackgroundColor; // IE11
          canvas.style.paddingLeft = oldPaddingLeft; // Chrome, FF, Safari
          canvas.style.paddingRight = oldPaddingRight;
          canvas.style.paddingTop = oldPaddingTop;
          canvas.style.paddingBottom = oldPaddingBottom;
          canvas.style.marginLeft = oldMarginLeft; // IE11
          canvas.style.marginRight = oldMarginRight;
          canvas.style.marginTop = oldMarginTop;
          canvas.style.marginBottom = oldMarginBottom;
          document.body.style.margin = oldDocumentBodyMargin;
          document.documentElement.style.overflow = oldDocumentOverflow; // Chrome, Firefox
          document.body.scroll = oldDocumentScroll; // IE
          canvas.style.imageRendering = oldImageRendering;
          if (canvas.GLctxObject) canvas.GLctxObject.GLctx.viewport(0, 0, oldWidth, oldHeight);
  
          if (currentFullscreenStrategy.canvasResizedCallback) {
            (function(a1, a2, a3) { return dynCall_iiii.apply(null, [currentFullscreenStrategy.canvasResizedCallback, a1, a2, a3]); })(37, 0, currentFullscreenStrategy.canvasResizedCallbackUserData);
          }
        }
      }
      document.addEventListener('fullscreenchange', restoreOldStyle);
      // Unprefixed Fullscreen API shipped in Chromium 71 (https://bugs.chromium.org/p/chromium/issues/detail?id=383813)
      // As of Safari 13.0.3 on macOS Catalina 10.15.1 still ships with prefixed webkitfullscreenchange. TODO: revisit this check once Safari ships unprefixed version.
      document.addEventListener('webkitfullscreenchange', restoreOldStyle);
      return restoreOldStyle;
    }
  
  function setLetterbox(element, topBottom, leftRight) {
        // Cannot use margin to specify letterboxes in FF or Chrome, since those ignore margins in fullscreen mode.
        element.style.paddingLeft = element.style.paddingRight = leftRight + 'px';
        element.style.paddingTop = element.style.paddingBottom = topBottom + 'px';
    }
  
  function getBoundingClientRect(e) {
      return specialHTMLTargets.indexOf(e) < 0 ? e.getBoundingClientRect() : {'left':0,'top':0};
    }
  function _JSEvents_resizeCanvasForFullscreen(target, strategy) {
      var restoreOldStyle = registerRestoreOldStyle(target);
      var cssWidth = strategy.softFullscreen ? innerWidth : screen.width;
      var cssHeight = strategy.softFullscreen ? innerHeight : screen.height;
      var rect = getBoundingClientRect(target);
      var windowedCssWidth = rect.width;
      var windowedCssHeight = rect.height;
      var canvasSize = getCanvasElementSize(target);
      var windowedRttWidth = canvasSize[0];
      var windowedRttHeight = canvasSize[1];
  
      if (strategy.scaleMode == 3) {
        setLetterbox(target, (cssHeight - windowedCssHeight) / 2, (cssWidth - windowedCssWidth) / 2);
        cssWidth = windowedCssWidth;
        cssHeight = windowedCssHeight;
      } else if (strategy.scaleMode == 2) {
        if (cssWidth*windowedRttHeight < windowedRttWidth*cssHeight) {
          var desiredCssHeight = windowedRttHeight * cssWidth / windowedRttWidth;
          setLetterbox(target, (cssHeight - desiredCssHeight) / 2, 0);
          cssHeight = desiredCssHeight;
        } else {
          var desiredCssWidth = windowedRttWidth * cssHeight / windowedRttHeight;
          setLetterbox(target, 0, (cssWidth - desiredCssWidth) / 2);
          cssWidth = desiredCssWidth;
        }
      }
  
      // If we are adding padding, must choose a background color or otherwise Chrome will give the
      // padding a default white color. Do it only if user has not customized their own background color.
      if (!target.style.backgroundColor) target.style.backgroundColor = 'black';
      // IE11 does the same, but requires the color to be set in the document body.
      if (!document.body.style.backgroundColor) document.body.style.backgroundColor = 'black'; // IE11
      // Firefox always shows black letterboxes independent of style color.
  
      target.style.width = cssWidth + 'px';
      target.style.height = cssHeight + 'px';
  
      if (strategy.filteringMode == 1) {
        target.style.imageRendering = 'optimizeSpeed';
        target.style.imageRendering = '-moz-crisp-edges';
        target.style.imageRendering = '-o-crisp-edges';
        target.style.imageRendering = '-webkit-optimize-contrast';
        target.style.imageRendering = 'optimize-contrast';
        target.style.imageRendering = 'crisp-edges';
        target.style.imageRendering = 'pixelated';
      }
  
      var dpiScale = (strategy.canvasResolutionScaleMode == 2) ? devicePixelRatio : 1;
      if (strategy.canvasResolutionScaleMode != 0) {
        var newWidth = (cssWidth * dpiScale)|0;
        var newHeight = (cssHeight * dpiScale)|0;
        setCanvasElementSize(target, newWidth, newHeight);
        if (target.GLctxObject) target.GLctxObject.GLctx.viewport(0, 0, newWidth, newHeight);
      }
      return restoreOldStyle;
    }
  function _JSEvents_requestFullscreen(target, strategy) {
      // EMSCRIPTEN_FULLSCREEN_SCALE_DEFAULT + EMSCRIPTEN_FULLSCREEN_CANVAS_SCALE_NONE is a mode where no extra logic is performed to the DOM elements.
      if (strategy.scaleMode != 0 || strategy.canvasResolutionScaleMode != 0) {
        _JSEvents_resizeCanvasForFullscreen(target, strategy);
      }
  
      if (target.requestFullscreen) {
        target.requestFullscreen();
      } else if (target.webkitRequestFullscreen) {
        target.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT);
      } else {
        return JSEvents.fullscreenEnabled() ? -3 : -1;
      }
  
      currentFullscreenStrategy = strategy;
  
      if (strategy.canvasResizedCallback) {
        (function(a1, a2, a3) { return dynCall_iiii.apply(null, [strategy.canvasResizedCallback, a1, a2, a3]); })(37, 0, strategy.canvasResizedCallbackUserData);
      }
  
      return 0;
    }
  function _emscripten_exit_fullscreen() {
      if (!JSEvents.fullscreenEnabled()) return -1;
      // Make sure no queued up calls will fire after this.
      JSEvents.removeDeferredCalls(_JSEvents_requestFullscreen);
  
      var d = specialHTMLTargets[1];
      if (d.exitFullscreen) {
        d.fullscreenElement && d.exitFullscreen();
      } else if (d.webkitExitFullscreen) {
        d.webkitFullscreenElement && d.webkitExitFullscreen();
      } else {
        return -1;
      }
  
      return 0;
    }

  function requestPointerLock(target) {
      if (target.requestPointerLock) {
        target.requestPointerLock();
      } else if (target.msRequestPointerLock) {
        target.msRequestPointerLock();
      } else {
        // document.body is known to accept pointer lock, so use that to differentiate if the user passed a bad element,
        // or if the whole browser just doesn't support the feature.
        if (document.body.requestPointerLock
          || document.body.msRequestPointerLock
          ) {
          return -3;
        } else {
          return -1;
        }
      }
      return 0;
    }
  function _emscripten_exit_pointerlock() {
      // Make sure no queued up calls will fire after this.
      JSEvents.removeDeferredCalls(requestPointerLock);
  
      if (document.exitPointerLock) {
        document.exitPointerLock();
      } else if (document.msExitPointerLock) {
        document.msExitPointerLock();
      } else {
        return -1;
      }
      return 0;
    }


  function fillFullscreenChangeEventData(eventStruct) {
      var fullscreenElement = document.fullscreenElement || document.mozFullScreenElement || document.webkitFullscreenElement || document.msFullscreenElement;
      var isFullscreen = !!fullscreenElement;
      // Assigning a boolean to HEAP32 with expected type coercion.
      /** @suppress{checkTypes} */
      HEAP32[((eventStruct)>>2)] = isFullscreen;
      HEAP32[(((eventStruct)+(4))>>2)] = JSEvents.fullscreenEnabled();
      // If transitioning to fullscreen, report info about the element that is now fullscreen.
      // If transitioning to windowed mode, report info about the element that just was fullscreen.
      var reportedElement = isFullscreen ? fullscreenElement : JSEvents.previousFullscreenElement;
      var nodeName = JSEvents.getNodeNameForTarget(reportedElement);
      var id = (reportedElement && reportedElement.id) ? reportedElement.id : '';
      stringToUTF8(nodeName, eventStruct + 8, 128);
      stringToUTF8(id, eventStruct + 136, 128);
      HEAP32[(((eventStruct)+(264))>>2)] = reportedElement ? reportedElement.clientWidth : 0;
      HEAP32[(((eventStruct)+(268))>>2)] = reportedElement ? reportedElement.clientHeight : 0;
      HEAP32[(((eventStruct)+(272))>>2)] = screen.width;
      HEAP32[(((eventStruct)+(276))>>2)] = screen.height;
      if (isFullscreen) {
        JSEvents.previousFullscreenElement = fullscreenElement;
      }
    }
  function _emscripten_get_fullscreen_status(fullscreenStatus) {
      if (!JSEvents.fullscreenEnabled()) return -1;
      fillFullscreenChangeEventData(fullscreenStatus);
      return 0;
    }

  function fillGamepadEventData(eventStruct, e) {
      HEAPF64[((eventStruct)>>3)] = e.timestamp;
      for (var i = 0; i < e.axes.length; ++i) {
        HEAPF64[(((eventStruct+i*8)+(16))>>3)] = e.axes[i];
      }
      for (var i = 0; i < e.buttons.length; ++i) {
        if (typeof e.buttons[i] == 'object') {
          HEAPF64[(((eventStruct+i*8)+(528))>>3)] = e.buttons[i].value;
        } else {
          HEAPF64[(((eventStruct+i*8)+(528))>>3)] = e.buttons[i];
        }
      }
      for (var i = 0; i < e.buttons.length; ++i) {
        if (typeof e.buttons[i] == 'object') {
          HEAP32[(((eventStruct+i*4)+(1040))>>2)] = e.buttons[i].pressed;
        } else {
          // Assigning a boolean to HEAP32, that's ok, but Closure would like to warn about it:
          /** @suppress {checkTypes} */
          HEAP32[(((eventStruct+i*4)+(1040))>>2)] = e.buttons[i] == 1;
        }
      }
      HEAP32[(((eventStruct)+(1296))>>2)] = e.connected;
      HEAP32[(((eventStruct)+(1300))>>2)] = e.index;
      HEAP32[(((eventStruct)+(8))>>2)] = e.axes.length;
      HEAP32[(((eventStruct)+(12))>>2)] = e.buttons.length;
      stringToUTF8(e.id, eventStruct + 1304, 64);
      stringToUTF8(e.mapping, eventStruct + 1368, 64);
    }
  function _emscripten_get_gamepad_status(index, gamepadState) {
      if (!JSEvents.lastGamepadState) throw 'emscripten_get_gamepad_status() can only be called after having first called emscripten_sample_gamepad_data() and that function has returned EMSCRIPTEN_RESULT_SUCCESS!';
  
      // INVALID_PARAM is returned on a Gamepad index that never was there.
      if (index < 0 || index >= JSEvents.lastGamepadState.length) return -5;
  
      // NO_DATA is returned on a Gamepad index that was removed.
      // For previously disconnected gamepads there should be an empty slot (null/undefined/false) at the index.
      // This is because gamepads must keep their original position in the array.
      // For example, removing the first of two gamepads produces [null/undefined/false, gamepad].
      if (!JSEvents.lastGamepadState[index]) return -7;
  
      fillGamepadEventData(gamepadState, JSEvents.lastGamepadState[index]);
      return 0;
    }

  function _emscripten_get_heap_max() {
      // Stay one Wasm page short of 4GB: while e.g. Chrome is able to allocate
      // full 4GB Wasm memories, the size will wrap back to 0 bytes in Wasm side
      // for any code that deals with heap sizes, which would require special
      // casing all heap size related code to treat 0 specially.
      return 2147483648;
    }


  function _emscripten_get_now_res() { // return resolution of get_now, in nanoseconds
      if (ENVIRONMENT_IS_NODE) {
        return 1; // nanoseconds
      } else
      // Modern environment where performance.now() is supported:
      return 1000; // microseconds (1/1000 of a millisecond)
    }

  function _emscripten_get_num_gamepads() {
      if (!JSEvents.lastGamepadState) throw 'emscripten_get_num_gamepads() can only be called after having first called emscripten_sample_gamepad_data() and that function has returned EMSCRIPTEN_RESULT_SUCCESS!';
      // N.B. Do not call emscripten_get_num_gamepads() unless having first called emscripten_sample_gamepad_data(), and that has returned EMSCRIPTEN_RESULT_SUCCESS.
      // Otherwise the following line will throw an exception.
      return JSEvents.lastGamepadState.length;
    }

  function _emscripten_html5_remove_all_event_listeners() {
      JSEvents.removeAllEventListeners();
    }

  function _emscripten_is_webgl_context_lost(contextHandle) {
      return !GL.contexts[contextHandle] || GL.contexts[contextHandle].GLctx.isContextLost(); // No context ~> lost context.
    }

  function reallyNegative(x) {
      return x < 0 || (x === 0 && (1/x) === -Infinity);
    }
  
  function convertI32PairToI53(lo, hi) {
      // This function should not be getting called with too large unsigned numbers
      // in high part (if hi >= 0x7FFFFFFFF, one should have been calling
      // convertU32PairToI53())
      assert(hi === (hi|0));
      return (lo >>> 0) + hi * 4294967296;
    }
  
  function convertU32PairToI53(lo, hi) {
      return (lo >>> 0) + (hi >>> 0) * 4294967296;
    }
  
  function reSign(value, bits) {
      if (value <= 0) {
        return value;
      }
      var half = bits <= 32 ? Math.abs(1 << (bits-1)) // abs is needed if bits == 32
                            : Math.pow(2, bits-1);
      // for huge values, we can hit the precision limit and always get true here.
      // so don't do that but, in general there is no perfect solution here. With
      // 64-bit ints, we get rounding and errors
      // TODO: In i64 mode 1, resign the two parts separately and safely
      if (value >= half && (bits <= 32 || value > half)) {
        // Cannot bitshift half, as it may be at the limit of the bits JS uses in
        // bitshifts
        value = -2*half + value;
      }
      return value;
    }
  
  function unSign(value, bits) {
      if (value >= 0) {
        return value;
      }
      // Need some trickery, since if bits == 32, we are right at the limit of the
      // bits JS uses in bitshifts
      return bits <= 32 ? 2*Math.abs(1 << (bits-1)) + value
                        : Math.pow(2, bits)         + value;
    }
  function formatString(format, varargs) {
      ;
      assert((varargs & 3) === 0);
      var textIndex = format;
      var argIndex = varargs;
      // This must be called before reading a double or i64 vararg. It will bump the pointer properly.
      // It also does an assert on i32 values, so it's nice to call it before all varargs calls.
      function prepVararg(ptr, type) {
        if (type === 'double' || type === 'i64') {
          // move so the load is aligned
          if (ptr & 7) {
            assert((ptr & 7) === 4);
            ptr += 4;
          }
        } else {
          assert((ptr & 3) === 0);
        }
        return ptr;
      }
      function getNextArg(type) {
        // NOTE: Explicitly ignoring type safety. Otherwise this fails:
        //       int x = 4; printf("%c\n", (char)x);
        var ret;
        argIndex = prepVararg(argIndex, type);
        if (type === 'double') {
          ret = Number(HEAPF64[((argIndex)>>3)]);
          argIndex += 8;
        } else if (type == 'i64') {
          ret = [HEAP32[((argIndex)>>2)],
                 HEAP32[(((argIndex)+(4))>>2)]];
          argIndex += 8;
        } else {
          assert((argIndex & 3) === 0);
          type = 'i32'; // varargs are always i32, i64, or double
          ret = HEAP32[((argIndex)>>2)];
          argIndex += 4;
        }
        return ret;
      }
  
      var ret = [];
      var curr, next, currArg;
      while (1) {
        var startTextIndex = textIndex;
        curr = HEAP8[((textIndex)>>0)];
        if (curr === 0) break;
        next = HEAP8[((textIndex+1)>>0)];
        if (curr == 37) {
          // Handle flags.
          var flagAlwaysSigned = false;
          var flagLeftAlign = false;
          var flagAlternative = false;
          var flagZeroPad = false;
          var flagPadSign = false;
          flagsLoop: while (1) {
            switch (next) {
              case 43:
                flagAlwaysSigned = true;
                break;
              case 45:
                flagLeftAlign = true;
                break;
              case 35:
                flagAlternative = true;
                break;
              case 48:
                if (flagZeroPad) {
                  break flagsLoop;
                } else {
                  flagZeroPad = true;
                  break;
                }
              case 32:
                flagPadSign = true;
                break;
              default:
                break flagsLoop;
            }
            textIndex++;
            next = HEAP8[((textIndex+1)>>0)];
          }
  
          // Handle width.
          var width = 0;
          if (next == 42) {
            width = getNextArg('i32');
            textIndex++;
            next = HEAP8[((textIndex+1)>>0)];
          } else {
            while (next >= 48 && next <= 57) {
              width = width * 10 + (next - 48);
              textIndex++;
              next = HEAP8[((textIndex+1)>>0)];
            }
          }
  
          // Handle precision.
          var precisionSet = false, precision = -1;
          if (next == 46) {
            precision = 0;
            precisionSet = true;
            textIndex++;
            next = HEAP8[((textIndex+1)>>0)];
            if (next == 42) {
              precision = getNextArg('i32');
              textIndex++;
            } else {
              while (1) {
                var precisionChr = HEAP8[((textIndex+1)>>0)];
                if (precisionChr < 48 ||
                    precisionChr > 57) break;
                precision = precision * 10 + (precisionChr - 48);
                textIndex++;
              }
            }
            next = HEAP8[((textIndex+1)>>0)];
          }
          if (precision < 0) {
            precision = 6; // Standard default.
            precisionSet = false;
          }
  
          // Handle integer sizes. WARNING: These assume a 32-bit architecture!
          var argSize;
          switch (String.fromCharCode(next)) {
            case 'h':
              var nextNext = HEAP8[((textIndex+2)>>0)];
              if (nextNext == 104) {
                textIndex++;
                argSize = 1; // char (actually i32 in varargs)
              } else {
                argSize = 2; // short (actually i32 in varargs)
              }
              break;
            case 'l':
              var nextNext = HEAP8[((textIndex+2)>>0)];
              if (nextNext == 108) {
                textIndex++;
                argSize = 8; // long long
              } else {
                argSize = 4; // long
              }
              break;
            case 'L': // long long
            case 'q': // int64_t
            case 'j': // intmax_t
              argSize = 8;
              break;
            case 'z': // size_t
            case 't': // ptrdiff_t
            case 'I': // signed ptrdiff_t or unsigned size_t
              argSize = 4;
              break;
            default:
              argSize = null;
          }
          if (argSize) textIndex++;
          next = HEAP8[((textIndex+1)>>0)];
  
          // Handle type specifier.
          switch (String.fromCharCode(next)) {
            case 'd': case 'i': case 'u': case 'o': case 'x': case 'X': case 'p': {
              // Integer.
              var signed = next == 100 || next == 105;
              argSize = argSize || 4;
              currArg = getNextArg('i' + (argSize * 8));
              var argText;
              // Flatten i64-1 [low, high] into a (slightly rounded) double
              if (argSize == 8) {
                currArg = next == 117 ? convertU32PairToI53(currArg[0], currArg[1]) : convertI32PairToI53(currArg[0], currArg[1]);
              }
              // Truncate to requested size.
              if (argSize <= 4) {
                var limit = Math.pow(256, argSize) - 1;
                currArg = (signed ? reSign : unSign)(currArg & limit, argSize * 8);
              }
              // Format the number.
              var currAbsArg = Math.abs(currArg);
              var prefix = '';
              if (next == 100 || next == 105) {
                argText = reSign(currArg, 8 * argSize).toString(10);
              } else if (next == 117) {
                argText = unSign(currArg, 8 * argSize).toString(10);
                currArg = Math.abs(currArg);
              } else if (next == 111) {
                argText = (flagAlternative ? '0' : '') + currAbsArg.toString(8);
              } else if (next == 120 || next == 88) {
                prefix = (flagAlternative && currArg != 0) ? '0x' : '';
                if (currArg < 0) {
                  // Represent negative numbers in hex as 2's complement.
                  currArg = -currArg;
                  argText = (currAbsArg - 1).toString(16);
                  var buffer = [];
                  for (var i = 0; i < argText.length; i++) {
                    buffer.push((0xF - parseInt(argText[i], 16)).toString(16));
                  }
                  argText = buffer.join('');
                  while (argText.length < argSize * 2) argText = 'f' + argText;
                } else {
                  argText = currAbsArg.toString(16);
                }
                if (next == 88) {
                  prefix = prefix.toUpperCase();
                  argText = argText.toUpperCase();
                }
              } else if (next == 112) {
                if (currAbsArg === 0) {
                  argText = '(nil)';
                } else {
                  prefix = '0x';
                  argText = currAbsArg.toString(16);
                }
              }
              if (precisionSet) {
                while (argText.length < precision) {
                  argText = '0' + argText;
                }
              }
  
              // Add sign if needed
              if (currArg >= 0) {
                if (flagAlwaysSigned) {
                  prefix = '+' + prefix;
                } else if (flagPadSign) {
                  prefix = ' ' + prefix;
                }
              }
  
              // Move sign to prefix so we zero-pad after the sign
              if (argText.charAt(0) == '-') {
                prefix = '-' + prefix;
                argText = argText.substr(1);
              }
  
              // Add padding.
              while (prefix.length + argText.length < width) {
                if (flagLeftAlign) {
                  argText += ' ';
                } else {
                  if (flagZeroPad) {
                    argText = '0' + argText;
                  } else {
                    prefix = ' ' + prefix;
                  }
                }
              }
  
              // Insert the result into the buffer.
              argText = prefix + argText;
              argText.split('').forEach(function(chr) {
                ret.push(chr.charCodeAt(0));
              });
              break;
            }
            case 'f': case 'F': case 'e': case 'E': case 'g': case 'G': {
              // Float.
              currArg = getNextArg('double');
              var argText;
              if (isNaN(currArg)) {
                argText = 'nan';
                flagZeroPad = false;
              } else if (!isFinite(currArg)) {
                argText = (currArg < 0 ? '-' : '') + 'inf';
                flagZeroPad = false;
              } else {
                var isGeneral = false;
                var effectivePrecision = Math.min(precision, 20);
  
                // Convert g/G to f/F or e/E, as per:
                // http://pubs.opengroup.org/onlinepubs/9699919799/functions/printf.html
                if (next == 103 || next == 71) {
                  isGeneral = true;
                  precision = precision || 1;
                  var exponent = parseInt(currArg.toExponential(effectivePrecision).split('e')[1], 10);
                  if (precision > exponent && exponent >= -4) {
                    next = ((next == 103) ? 'f' : 'F').charCodeAt(0);
                    precision -= exponent + 1;
                  } else {
                    next = ((next == 103) ? 'e' : 'E').charCodeAt(0);
                    precision--;
                  }
                  effectivePrecision = Math.min(precision, 20);
                }
  
                if (next == 101 || next == 69) {
                  argText = currArg.toExponential(effectivePrecision);
                  // Make sure the exponent has at least 2 digits.
                  if (/[eE][-+]\d$/.test(argText)) {
                    argText = argText.slice(0, -1) + '0' + argText.slice(-1);
                  }
                } else if (next == 102 || next == 70) {
                  argText = currArg.toFixed(effectivePrecision);
                  if (currArg === 0 && reallyNegative(currArg)) {
                    argText = '-' + argText;
                  }
                }
  
                var parts = argText.split('e');
                if (isGeneral && !flagAlternative) {
                  // Discard trailing zeros and periods.
                  while (parts[0].length > 1 && parts[0].includes('.') &&
                         (parts[0].slice(-1) == '0' || parts[0].slice(-1) == '.')) {
                    parts[0] = parts[0].slice(0, -1);
                  }
                } else {
                  // Make sure we have a period in alternative mode.
                  if (flagAlternative && argText.indexOf('.') == -1) parts[0] += '.';
                  // Zero pad until required precision.
                  while (precision > effectivePrecision++) parts[0] += '0';
                }
                argText = parts[0] + (parts.length > 1 ? 'e' + parts[1] : '');
  
                // Capitalize 'E' if needed.
                if (next == 69) argText = argText.toUpperCase();
  
                // Add sign.
                if (currArg >= 0) {
                  if (flagAlwaysSigned) {
                    argText = '+' + argText;
                  } else if (flagPadSign) {
                    argText = ' ' + argText;
                  }
                }
              }
  
              // Add padding.
              while (argText.length < width) {
                if (flagLeftAlign) {
                  argText += ' ';
                } else {
                  if (flagZeroPad && (argText[0] == '-' || argText[0] == '+')) {
                    argText = argText[0] + '0' + argText.slice(1);
                  } else {
                    argText = (flagZeroPad ? '0' : ' ') + argText;
                  }
                }
              }
  
              // Adjust case.
              if (next < 97) argText = argText.toUpperCase();
  
              // Insert the result into the buffer.
              argText.split('').forEach(function(chr) {
                ret.push(chr.charCodeAt(0));
              });
              break;
            }
            case 's': {
              // String.
              var arg = getNextArg('i8*');
              var argLength = arg ? _strlen(arg) : '(null)'.length;
              if (precisionSet) argLength = Math.min(argLength, precision);
              if (!flagLeftAlign) {
                while (argLength < width--) {
                  ret.push(32);
                }
              }
              if (arg) {
                for (var i = 0; i < argLength; i++) {
                  ret.push(HEAPU8[((arg++)>>0)]);
                }
              } else {
                ret = ret.concat(intArrayFromString('(null)'.substr(0, argLength), true));
              }
              if (flagLeftAlign) {
                while (argLength < width--) {
                  ret.push(32);
                }
              }
              break;
            }
            case 'c': {
              // Character.
              if (flagLeftAlign) ret.push(getNextArg('i8'));
              while (--width > 0) {
                ret.push(32);
              }
              if (!flagLeftAlign) ret.push(getNextArg('i8'));
              break;
            }
            case 'n': {
              // Write the length written so far to the next parameter.
              var ptr = getNextArg('i32*');
              HEAP32[((ptr)>>2)] = ret.length;
              break;
            }
            case '%': {
              // Literal percent sign.
              ret.push(curr);
              break;
            }
            default: {
              // Unknown specifiers remain untouched.
              for (var i = startTextIndex; i < textIndex + 2; i++) {
                ret.push(HEAP8[((i)>>0)]);
              }
            }
          }
          textIndex += 2;
          // TODO: Support a/A (hex float) and m (last error) specifiers.
          // TODO: Support %1${specifier} for arg selection.
        } else {
          ret.push(curr);
          textIndex += 1;
        }
      }
      return ret;
    }
  
  function traverseStack(args) {
      if (!args || !args.callee || !args.callee.name) {
        return [null, '', ''];
      }
  
      var funstr = args.callee.toString();
      var funcname = args.callee.name;
      var str = '(';
      var first = true;
      for (var i in args) {
        var a = args[i];
        if (!first) {
          str += ", ";
        }
        first = false;
        if (typeof a == 'number' || typeof a == 'string') {
          str += a;
        } else {
          str += '(' + typeof a + ')';
        }
      }
      str += ')';
      var caller = args.callee.caller;
      args = caller ? caller.arguments : [];
      if (first)
        str = '';
      return [args, funcname, str];
    }
  /** @param {number=} flags */
  function _emscripten_get_callstack_js(flags) {
      var callstack = jsStackTrace();
  
      // Find the symbols in the callstack that corresponds to the functions that report callstack information, and remove everything up to these from the output.
      var iThisFunc = callstack.lastIndexOf('_emscripten_log');
      var iThisFunc2 = callstack.lastIndexOf('_emscripten_get_callstack');
      var iNextLine = callstack.indexOf('\n', Math.max(iThisFunc, iThisFunc2))+1;
      callstack = callstack.slice(iNextLine);
  
      if (flags & 32) {
        warnOnce('EM_LOG_DEMANGLE is deprecated; ignoring');
      }
  
      // If user requested to see the original source stack, but no source map information is available, just fall back to showing the JS stack.
      if (flags & 8 && typeof emscripten_source_map == 'undefined') {
        warnOnce('Source map information is not available, emscripten_log with EM_LOG_C_STACK will be ignored. Build with "--pre-js $EMSCRIPTEN/src/emscripten-source-map.min.js" linker flag to add source map loading to code.');
        flags ^= 8;
        flags |= 16;
      }
  
      var stack_args = null;
      if (flags & 128) {
        // To get the actual parameters to the functions, traverse the stack via the unfortunately deprecated 'arguments.callee' method, if it works:
        stack_args = traverseStack(arguments);
        while (stack_args[1].includes('_emscripten_'))
          stack_args = traverseStack(stack_args[0]);
      }
  
      // Process all lines:
      var lines = callstack.split('\n');
      callstack = '';
      var newFirefoxRe = new RegExp('\\s*(.*?)@(.*?):([0-9]+):([0-9]+)'); // New FF30 with column info: extract components of form '       Object._main@http://server.com:4324:12'
      var firefoxRe = new RegExp('\\s*(.*?)@(.*):(.*)(:(.*))?'); // Old FF without column info: extract components of form '       Object._main@http://server.com:4324'
      var chromeRe = new RegExp('\\s*at (.*?) \\\((.*):(.*):(.*)\\\)'); // Extract components of form '    at Object._main (http://server.com/file.html:4324:12)'
  
      for (var l in lines) {
        var line = lines[l];
  
        var symbolName = '';
        var file = '';
        var lineno = 0;
        var column = 0;
  
        var parts = chromeRe.exec(line);
        if (parts && parts.length == 5) {
          symbolName = parts[1];
          file = parts[2];
          lineno = parts[3];
          column = parts[4];
        } else {
          parts = newFirefoxRe.exec(line);
          if (!parts) parts = firefoxRe.exec(line);
          if (parts && parts.length >= 4) {
            symbolName = parts[1];
            file = parts[2];
            lineno = parts[3];
            column = parts[4]|0; // Old Firefox doesn't carry column information, but in new FF30, it is present. See https://bugzilla.mozilla.org/show_bug.cgi?id=762556
          } else {
            // Was not able to extract this line for demangling/sourcemapping purposes. Output it as-is.
            callstack += line + '\n';
            continue;
          }
        }
  
        var haveSourceMap = false;
  
        if (flags & 8) {
          var orig = emscripten_source_map.originalPositionFor({line: lineno, column: column});
          haveSourceMap = (orig && orig.source);
          if (haveSourceMap) {
            if (flags & 64) {
              orig.source = orig.source.substring(orig.source.replace(/\\/g, "/").lastIndexOf('/')+1);
            }
            callstack += '    at ' + symbolName + ' (' + orig.source + ':' + orig.line + ':' + orig.column + ')\n';
          }
        }
        if ((flags & 16) || !haveSourceMap) {
          if (flags & 64) {
            file = file.substring(file.replace(/\\/g, "/").lastIndexOf('/')+1);
          }
          callstack += (haveSourceMap ? ('     = ' + symbolName) : ('    at '+ symbolName)) + ' (' + file + ':' + lineno + ':' + column + ')\n';
        }
  
        // If we are still keeping track with the callstack by traversing via 'arguments.callee', print the function parameters as well.
        if (flags & 128 && stack_args[0]) {
          if (stack_args[1] == symbolName && stack_args[2].length > 0) {
            callstack = callstack.replace(/\s+$/, '');
            callstack += ' with values: ' + stack_args[1] + stack_args[2] + '\n';
          }
          stack_args = traverseStack(stack_args[0]);
        }
      }
      // Trim extra whitespace at the end of the output.
      callstack = callstack.replace(/\s+$/, '');
      return callstack;
    }
  function _emscripten_log_js(flags, str) {
      if (flags & 24) {
        str = str.replace(/\s+$/, ''); // Ensure the message and the callstack are joined cleanly with exactly one newline.
        str += (str.length > 0 ? '\n' : '') + _emscripten_get_callstack_js(flags);
      }
  
      if (flags & 1) {
        if (flags & 4) {
          console.error(str);
        } else if (flags & 2) {
          console.warn(str);
        } else if (flags & 512) {
          console.info(str);
        } else if (flags & 256) {
          console.debug(str);
        } else {
          console.log(str);
        }
      } else if (flags & 6) {
        err(str);
      } else {
        out(str);
      }
    }
  function _emscripten_log(flags, format, varargs) {
      var result = formatString(format, varargs);
      var str = UTF8ArrayToString(result, 0);
      _emscripten_log_js(flags, str);
    }

  function _emscripten_memcpy_big(dest, src, num) {
      HEAPU8.copyWithin(dest, src, src + num);
    }

  function doRequestFullscreen(target, strategy) {
      if (!JSEvents.fullscreenEnabled()) return -1;
      target = findEventTarget(target);
      if (!target) return -4;
  
      if (!target.requestFullscreen
        && !target.webkitRequestFullscreen
        ) {
        return -3;
      }
  
      var canPerformRequests = JSEvents.canPerformEventHandlerRequests();
  
      // Queue this function call if we're not currently in an event handler and the user saw it appropriate to do so.
      if (!canPerformRequests) {
        if (strategy.deferUntilInEventHandler) {
          JSEvents.deferCall(_JSEvents_requestFullscreen, 1 /* priority over pointer lock */, [target, strategy]);
          return 1;
        } else {
          return -2;
        }
      }
  
      return _JSEvents_requestFullscreen(target, strategy);
    }
  function _emscripten_request_fullscreen(target, deferUntilInEventHandler) {
      var strategy = {
        // These options perform no added logic, but just bare request fullscreen.
        scaleMode: 0,
        canvasResolutionScaleMode: 0,
        filteringMode: 0,
        deferUntilInEventHandler: deferUntilInEventHandler,
        canvasResizedCallbackTargetThread: 2
      };
      return doRequestFullscreen(target, strategy);
    }

  function _emscripten_request_pointerlock(target, deferUntilInEventHandler) {
      target = findEventTarget(target);
      if (!target) return -4;
      if (!target.requestPointerLock
        && !target.msRequestPointerLock
        ) {
        return -1;
      }
  
      var canPerformRequests = JSEvents.canPerformEventHandlerRequests();
  
      // Queue this function call if we're not currently in an event handler and the user saw it appropriate to do so.
      if (!canPerformRequests) {
        if (deferUntilInEventHandler) {
          JSEvents.deferCall(requestPointerLock, 2 /* priority below fullscreen */, [target]);
          return 1;
        } else {
          return -2;
        }
      }
  
      return requestPointerLock(target);
    }

  function emscripten_realloc_buffer(size) {
      try {
        // round size grow request up to wasm page size (fixed 64KB per spec)
        wasmMemory.grow((size - buffer.byteLength + 65535) >>> 16); // .grow() takes a delta compared to the previous size
        updateGlobalBufferAndViews(wasmMemory.buffer);
        return 1 /*success*/;
      } catch(e) {
        err('emscripten_realloc_buffer: Attempted to grow heap from ' + buffer.byteLength  + ' bytes to ' + size + ' bytes, but got error: ' + e);
      }
      // implicit 0 return to save code size (caller will cast "undefined" into 0
      // anyhow)
    }
  function _emscripten_resize_heap(requestedSize) {
      var oldSize = HEAPU8.length;
      requestedSize = requestedSize >>> 0;
      // With multithreaded builds, races can happen (another thread might increase the size
      // in between), so return a failure, and let the caller retry.
      assert(requestedSize > oldSize);
  
      // Memory resize rules:
      // 1.  Always increase heap size to at least the requested size, rounded up
      //     to next page multiple.
      // 2a. If MEMORY_GROWTH_LINEAR_STEP == -1, excessively resize the heap
      //     geometrically: increase the heap size according to
      //     MEMORY_GROWTH_GEOMETRIC_STEP factor (default +20%), At most
      //     overreserve by MEMORY_GROWTH_GEOMETRIC_CAP bytes (default 96MB).
      // 2b. If MEMORY_GROWTH_LINEAR_STEP != -1, excessively resize the heap
      //     linearly: increase the heap size by at least
      //     MEMORY_GROWTH_LINEAR_STEP bytes.
      // 3.  Max size for the heap is capped at 2048MB-WASM_PAGE_SIZE, or by
      //     MAXIMUM_MEMORY, or by ASAN limit, depending on which is smallest
      // 4.  If we were unable to allocate as much memory, it may be due to
      //     over-eager decision to excessively reserve due to (3) above.
      //     Hence if an allocation fails, cut down on the amount of excess
      //     growth, in an attempt to succeed to perform a smaller allocation.
  
      // A limit is set for how much we can grow. We should not exceed that
      // (the wasm binary specifies it, so if we tried, we'd fail anyhow).
      var maxHeapSize = _emscripten_get_heap_max();
      if (requestedSize > maxHeapSize) {
        err('Cannot enlarge memory, asked to go up to ' + requestedSize + ' bytes, but the limit is ' + maxHeapSize + ' bytes!');
        return false;
      }
  
      let alignUp = (x, multiple) => x + (multiple - x % multiple) % multiple;
  
      // Loop through potential heap size increases. If we attempt a too eager
      // reservation that fails, cut down on the attempted size and reserve a
      // smaller bump instead. (max 3 times, chosen somewhat arbitrarily)
      for (var cutDown = 1; cutDown <= 4; cutDown *= 2) {
        var overGrownHeapSize = oldSize * (1 + 0.2 / cutDown); // ensure geometric growth
        // but limit overreserving (default to capping at +96MB overgrowth at most)
        overGrownHeapSize = Math.min(overGrownHeapSize, requestedSize + 100663296 );
  
        var newSize = Math.min(maxHeapSize, alignUp(Math.max(requestedSize, overGrownHeapSize), 65536));
  
        var replacement = emscripten_realloc_buffer(newSize);
        if (replacement) {
  
          return true;
        }
      }
      err('Failed to grow the heap from ' + oldSize + ' bytes to ' + newSize + ' bytes, not enough memory!');
      return false;
    }

  /** @suppress {checkTypes} */
  function _emscripten_sample_gamepad_data() {
      try {
        if (navigator.getGamepads) return (JSEvents.lastGamepadState = navigator.getGamepads())
          ? 0 /*EMSCRIPTEN_RESULT_SUCCESS*/ : -1 /*EMSCRIPTEN_RESULT_NOT_SUPPORTED*/;
      } catch(e) {
        err(`navigator.getGamepads() exists, but failed to execute with exception ${e}. Disabling Gamepad access.`);
        navigator.getGamepads = null; // Disable getGamepads() so that it won't be attempted to be used again.
      }
      return -1 /*EMSCRIPTEN_RESULT_NOT_SUPPORTED*/;
    }

  function registerFocusEventCallback(target, userData, useCapture, callbackfunc, eventTypeId, eventTypeString, targetThread) {
      if (!JSEvents.focusEvent) JSEvents.focusEvent = _malloc( 256 );
  
      var focusEventHandlerFunc = function(ev) {
        var e = ev || event;
  
        var nodeName = JSEvents.getNodeNameForTarget(e.target);
        var id = e.target.id ? e.target.id : '';
  
        var focusEvent = JSEvents.focusEvent;
        stringToUTF8(nodeName, focusEvent + 0, 128);
        stringToUTF8(id, focusEvent + 128, 128);
  
        if ((function(a1, a2, a3) { return dynCall_iiii.apply(null, [callbackfunc, a1, a2, a3]); })(eventTypeId, focusEvent, userData)) e.preventDefault();
      };
  
      var eventHandler = {
        target: findEventTarget(target),
        eventTypeString: eventTypeString,
        callbackfunc: callbackfunc,
        handlerFunc: focusEventHandlerFunc,
        useCapture: useCapture
      };
      JSEvents.registerOrRemoveHandler(eventHandler);
    }
  function _emscripten_set_blur_callback_on_thread(target, userData, useCapture, callbackfunc, targetThread) {
      registerFocusEventCallback(target, userData, useCapture, callbackfunc, 12, "blur", targetThread);
      return 0;
    }


  function _emscripten_set_focus_callback_on_thread(target, userData, useCapture, callbackfunc, targetThread) {
      registerFocusEventCallback(target, userData, useCapture, callbackfunc, 13, "focus", targetThread);
      return 0;
    }

  function registerFullscreenChangeEventCallback(target, userData, useCapture, callbackfunc, eventTypeId, eventTypeString, targetThread) {
      if (!JSEvents.fullscreenChangeEvent) JSEvents.fullscreenChangeEvent = _malloc( 280 );
  
      var fullscreenChangeEventhandlerFunc = function(ev) {
        var e = ev || event;
  
        var fullscreenChangeEvent = JSEvents.fullscreenChangeEvent;
  
        fillFullscreenChangeEventData(fullscreenChangeEvent);
  
        if ((function(a1, a2, a3) { return dynCall_iiii.apply(null, [callbackfunc, a1, a2, a3]); })(eventTypeId, fullscreenChangeEvent, userData)) e.preventDefault();
      };
  
      var eventHandler = {
        target: target,
        eventTypeString: eventTypeString,
        callbackfunc: callbackfunc,
        handlerFunc: fullscreenChangeEventhandlerFunc,
        useCapture: useCapture
      };
      JSEvents.registerOrRemoveHandler(eventHandler);
    }
  function _emscripten_set_fullscreenchange_callback_on_thread(target, userData, useCapture, callbackfunc, targetThread) {
      if (!JSEvents.fullscreenEnabled()) return -1;
      target = findEventTarget(target);
      if (!target) return -4;
      registerFullscreenChangeEventCallback(target, userData, useCapture, callbackfunc, 19, "fullscreenchange", targetThread);
  
      // Unprefixed Fullscreen API shipped in Chromium 71 (https://bugs.chromium.org/p/chromium/issues/detail?id=383813)
      // As of Safari 13.0.3 on macOS Catalina 10.15.1 still ships with prefixed webkitfullscreenchange. TODO: revisit this check once Safari ships unprefixed version.
      registerFullscreenChangeEventCallback(target, userData, useCapture, callbackfunc, 19, "webkitfullscreenchange", targetThread);
  
      return 0;
    }

  function registerGamepadEventCallback(target, userData, useCapture, callbackfunc, eventTypeId, eventTypeString, targetThread) {
      if (!JSEvents.gamepadEvent) JSEvents.gamepadEvent = _malloc( 1432 );
  
      var gamepadEventHandlerFunc = function(ev) {
        var e = ev || event;
  
        var gamepadEvent = JSEvents.gamepadEvent;
        fillGamepadEventData(gamepadEvent, e["gamepad"]);
  
        if ((function(a1, a2, a3) { return dynCall_iiii.apply(null, [callbackfunc, a1, a2, a3]); })(eventTypeId, gamepadEvent, userData)) e.preventDefault();
      };
  
      var eventHandler = {
        target: findEventTarget(target),
        allowsDeferredCalls: true,
        eventTypeString: eventTypeString,
        callbackfunc: callbackfunc,
        handlerFunc: gamepadEventHandlerFunc,
        useCapture: useCapture
      };
      JSEvents.registerOrRemoveHandler(eventHandler);
    }
  function _emscripten_set_gamepadconnected_callback_on_thread(userData, useCapture, callbackfunc, targetThread) {
      if (_emscripten_sample_gamepad_data()) return -1 /*EMSCRIPTEN_RESULT_NOT_SUPPORTED*/;
      return registerGamepadEventCallback(2 /*EMSCRIPTEN_EVENT_TARGET_WINDOW*/, userData, useCapture, callbackfunc, 26 /*EMSCRIPTEN_EVENT_GAMEPADCONNECTED*/, "gamepadconnected", targetThread);
    }

  function _emscripten_set_gamepaddisconnected_callback_on_thread(userData, useCapture, callbackfunc, targetThread) {
      if (_emscripten_sample_gamepad_data()) return -1 /*EMSCRIPTEN_RESULT_NOT_SUPPORTED*/;
      return registerGamepadEventCallback(2 /*EMSCRIPTEN_EVENT_TARGET_WINDOW*/, userData, useCapture, callbackfunc, 27 /*EMSCRIPTEN_EVENT_GAMEPADDISCONNECTED*/, "gamepaddisconnected", targetThread);
    }

  function _emscripten_set_interval(cb, msecs, userData) {
      
      return setInterval(function() {
        callUserCallback(function() {
          (function(a1) {  dynCall_vi.apply(null, [cb, a1]); })(userData)
        });
      }, msecs);
    }

  function registerKeyEventCallback(target, userData, useCapture, callbackfunc, eventTypeId, eventTypeString, targetThread) {
      if (!JSEvents.keyEvent) JSEvents.keyEvent = _malloc( 176 );
  
      var keyEventHandlerFunc = function(e) {
        assert(e);
  
        var keyEventData = JSEvents.keyEvent;
        HEAPF64[((keyEventData)>>3)] = e.timeStamp;
  
        var idx = keyEventData >> 2;
  
        HEAP32[idx + 2] = e.location;
        HEAP32[idx + 3] = e.ctrlKey;
        HEAP32[idx + 4] = e.shiftKey;
        HEAP32[idx + 5] = e.altKey;
        HEAP32[idx + 6] = e.metaKey;
        HEAP32[idx + 7] = e.repeat;
        HEAP32[idx + 8] = e.charCode;
        HEAP32[idx + 9] = e.keyCode;
        HEAP32[idx + 10] = e.which;
        stringToUTF8(e.key || '', keyEventData + 44, 32);
        stringToUTF8(e.code || '', keyEventData + 76, 32);
        stringToUTF8(e.char || '', keyEventData + 108, 32);
        stringToUTF8(e.locale || '', keyEventData + 140, 32);
  
        if ((function(a1, a2, a3) { return dynCall_iiii.apply(null, [callbackfunc, a1, a2, a3]); })(eventTypeId, keyEventData, userData)) e.preventDefault();
      };
  
      var eventHandler = {
        target: findEventTarget(target),
        allowsDeferredCalls: true,
        eventTypeString: eventTypeString,
        callbackfunc: callbackfunc,
        handlerFunc: keyEventHandlerFunc,
        useCapture: useCapture
      };
      JSEvents.registerOrRemoveHandler(eventHandler);
    }
  function _emscripten_set_keydown_callback_on_thread(target, userData, useCapture, callbackfunc, targetThread) {
      registerKeyEventCallback(target, userData, useCapture, callbackfunc, 2, "keydown", targetThread);
      return 0;
    }

  function _emscripten_set_keypress_callback_on_thread(target, userData, useCapture, callbackfunc, targetThread) {
      registerKeyEventCallback(target, userData, useCapture, callbackfunc, 1, "keypress", targetThread);
      return 0;
    }

  function _emscripten_set_keyup_callback_on_thread(target, userData, useCapture, callbackfunc, targetThread) {
      registerKeyEventCallback(target, userData, useCapture, callbackfunc, 3, "keyup", targetThread);
      return 0;
    }

  function _emscripten_set_main_loop(func, fps, simulateInfiniteLoop) {
      var browserIterationFunc = (function() {  dynCall_v.call(null, func); });
      setMainLoop(browserIterationFunc, fps, simulateInfiniteLoop);
    }


  function fillMouseEventData(eventStruct, e, target) {
      assert(eventStruct % 4 == 0);
      HEAPF64[((eventStruct)>>3)] = e.timeStamp;
      var idx = eventStruct >> 2;
      HEAP32[idx + 2] = e.screenX;
      HEAP32[idx + 3] = e.screenY;
      HEAP32[idx + 4] = e.clientX;
      HEAP32[idx + 5] = e.clientY;
      HEAP32[idx + 6] = e.ctrlKey;
      HEAP32[idx + 7] = e.shiftKey;
      HEAP32[idx + 8] = e.altKey;
      HEAP32[idx + 9] = e.metaKey;
      HEAP16[idx*2 + 20] = e.button;
      HEAP16[idx*2 + 21] = e.buttons;
  
      HEAP32[idx + 11] = e["movementX"]
        ;
  
      HEAP32[idx + 12] = e["movementY"]
        ;
  
      var rect = getBoundingClientRect(target);
      HEAP32[idx + 13] = e.clientX - rect.left;
      HEAP32[idx + 14] = e.clientY - rect.top;
  
    }
  function registerMouseEventCallback(target, userData, useCapture, callbackfunc, eventTypeId, eventTypeString, targetThread) {
      if (!JSEvents.mouseEvent) JSEvents.mouseEvent = _malloc( 72 );
      target = findEventTarget(target);
  
      var mouseEventHandlerFunc = function(ev) {
        var e = ev || event;
  
        // TODO: Make this access thread safe, or this could update live while app is reading it.
        fillMouseEventData(JSEvents.mouseEvent, e, target);
  
        if ((function(a1, a2, a3) { return dynCall_iiii.apply(null, [callbackfunc, a1, a2, a3]); })(eventTypeId, JSEvents.mouseEvent, userData)) e.preventDefault();
      };
  
      var eventHandler = {
        target: target,
        allowsDeferredCalls: eventTypeString != 'mousemove' && eventTypeString != 'mouseenter' && eventTypeString != 'mouseleave', // Mouse move events do not allow fullscreen/pointer lock requests to be handled in them!
        eventTypeString: eventTypeString,
        callbackfunc: callbackfunc,
        handlerFunc: mouseEventHandlerFunc,
        useCapture: useCapture
      };
      JSEvents.registerOrRemoveHandler(eventHandler);
    }
  function _emscripten_set_mousedown_callback_on_thread(target, userData, useCapture, callbackfunc, targetThread) {
      registerMouseEventCallback(target, userData, useCapture, callbackfunc, 5, "mousedown", targetThread);
      return 0;
    }

  function _emscripten_set_mousemove_callback_on_thread(target, userData, useCapture, callbackfunc, targetThread) {
      registerMouseEventCallback(target, userData, useCapture, callbackfunc, 8, "mousemove", targetThread);
      return 0;
    }

  function _emscripten_set_mouseup_callback_on_thread(target, userData, useCapture, callbackfunc, targetThread) {
      registerMouseEventCallback(target, userData, useCapture, callbackfunc, 6, "mouseup", targetThread);
      return 0;
    }

  function fillPointerlockChangeEventData(eventStruct) {
      var pointerLockElement = document.pointerLockElement || document.mozPointerLockElement || document.webkitPointerLockElement || document.msPointerLockElement;
      var isPointerlocked = !!pointerLockElement;
      // Assigning a boolean to HEAP32 with expected type coercion.
      /** @suppress{checkTypes} */
      HEAP32[((eventStruct)>>2)] = isPointerlocked;
      var nodeName = JSEvents.getNodeNameForTarget(pointerLockElement);
      var id = (pointerLockElement && pointerLockElement.id) ? pointerLockElement.id : '';
      stringToUTF8(nodeName, eventStruct + 4, 128);
      stringToUTF8(id, eventStruct + 132, 128);
    }
  function registerPointerlockChangeEventCallback(target, userData, useCapture, callbackfunc, eventTypeId, eventTypeString, targetThread) {
      if (!JSEvents.pointerlockChangeEvent) JSEvents.pointerlockChangeEvent = _malloc( 260 );
  
      var pointerlockChangeEventHandlerFunc = function(ev) {
        var e = ev || event;
  
        var pointerlockChangeEvent = JSEvents.pointerlockChangeEvent;
        fillPointerlockChangeEventData(pointerlockChangeEvent);
  
        if ((function(a1, a2, a3) { return dynCall_iiii.apply(null, [callbackfunc, a1, a2, a3]); })(eventTypeId, pointerlockChangeEvent, userData)) e.preventDefault();
      };
  
      var eventHandler = {
        target: target,
        eventTypeString: eventTypeString,
        callbackfunc: callbackfunc,
        handlerFunc: pointerlockChangeEventHandlerFunc,
        useCapture: useCapture
      };
      JSEvents.registerOrRemoveHandler(eventHandler);
    }
  /** @suppress {missingProperties} */
  function _emscripten_set_pointerlockchange_callback_on_thread(target, userData, useCapture, callbackfunc, targetThread) {
      // TODO: Currently not supported in pthreads or in --proxy-to-worker mode. (In pthreads mode, document object is not defined)
      if (!document || !document.body || (!document.body.requestPointerLock && !document.body.mozRequestPointerLock && !document.body.webkitRequestPointerLock && !document.body.msRequestPointerLock)) {
        return -1;
      }
  
      target = findEventTarget(target);
      if (!target) return -4;
      registerPointerlockChangeEventCallback(target, userData, useCapture, callbackfunc, 20, "pointerlockchange", targetThread);
      registerPointerlockChangeEventCallback(target, userData, useCapture, callbackfunc, 20, "mozpointerlockchange", targetThread);
      registerPointerlockChangeEventCallback(target, userData, useCapture, callbackfunc, 20, "webkitpointerlockchange", targetThread);
      registerPointerlockChangeEventCallback(target, userData, useCapture, callbackfunc, 20, "mspointerlockchange", targetThread);
      return 0;
    }

  function registerTouchEventCallback(target, userData, useCapture, callbackfunc, eventTypeId, eventTypeString, targetThread) {
      if (!JSEvents.touchEvent) JSEvents.touchEvent = _malloc( 1696 );
  
      target = findEventTarget(target);
  
      var touchEventHandlerFunc = function(e) {
        assert(e);
        var t, touches = {}, et = e.touches;
        // To ease marshalling different kinds of touches that browser reports (all touches are listed in e.touches,
        // only changed touches in e.changedTouches, and touches on target at a.targetTouches), mark a boolean in
        // each Touch object so that we can later loop only once over all touches we see to marshall over to Wasm.
  
        for (var i = 0; i < et.length; ++i) {
          t = et[i];
          // Browser might recycle the generated Touch objects between each frame (Firefox on Android), so reset any
          // changed/target states we may have set from previous frame.
          t.isChanged = t.onTarget = 0;
          touches[t.identifier] = t;
        }
  
        // Mark which touches are part of the changedTouches list.
        for (var i = 0; i < e.changedTouches.length; ++i) {
          t = e.changedTouches[i];
          t.isChanged = 1;
          touches[t.identifier] = t;
        }
        // Mark which touches are part of the targetTouches list.
        for (var i = 0; i < e.targetTouches.length; ++i) {
          touches[e.targetTouches[i].identifier].onTarget = 1;
        }
  
        var touchEvent = JSEvents.touchEvent;
        var idx = touchEvent>>2; // Pre-shift the ptr to index to HEAP32 to save code size
        HEAP32[idx + 3] = e.ctrlKey;
        HEAP32[idx + 4] = e.shiftKey;
        HEAP32[idx + 5] = e.altKey;
        HEAP32[idx + 6] = e.metaKey;
        idx += 7; // Advance to the start of the touch array.
        var targetRect = getBoundingClientRect(target);
        var numTouches = 0;
        for (var i in touches) {
          var t = touches[i];
          HEAP32[idx + 0] = t.identifier;
          HEAP32[idx + 1] = t.screenX;
          HEAP32[idx + 2] = t.screenY;
          HEAP32[idx + 3] = t.clientX;
          HEAP32[idx + 4] = t.clientY;
          HEAP32[idx + 5] = t.pageX;
          HEAP32[idx + 6] = t.pageY;
          HEAP32[idx + 7] = t.isChanged;
          HEAP32[idx + 8] = t.onTarget;
          HEAP32[idx + 9] = t.clientX - targetRect.left;
          HEAP32[idx + 10] = t.clientY - targetRect.top;
  
          idx += 13;
  
          if (++numTouches > 31) {
            break;
          }
        }
        HEAP32[(((touchEvent)+(8))>>2)] = numTouches;
  
        if ((function(a1, a2, a3) { return dynCall_iiii.apply(null, [callbackfunc, a1, a2, a3]); })(eventTypeId, touchEvent, userData)) e.preventDefault();
      };
  
      var eventHandler = {
        target: target,
        allowsDeferredCalls: eventTypeString == 'touchstart' || eventTypeString == 'touchend',
        eventTypeString: eventTypeString,
        callbackfunc: callbackfunc,
        handlerFunc: touchEventHandlerFunc,
        useCapture: useCapture
      };
      JSEvents.registerOrRemoveHandler(eventHandler);
    }
  function _emscripten_set_touchcancel_callback_on_thread(target, userData, useCapture, callbackfunc, targetThread) {
      registerTouchEventCallback(target, userData, useCapture, callbackfunc, 25, "touchcancel", targetThread);
      return 0;
    }

  function _emscripten_set_touchend_callback_on_thread(target, userData, useCapture, callbackfunc, targetThread) {
      registerTouchEventCallback(target, userData, useCapture, callbackfunc, 23, "touchend", targetThread);
      return 0;
    }

  function _emscripten_set_touchmove_callback_on_thread(target, userData, useCapture, callbackfunc, targetThread) {
      registerTouchEventCallback(target, userData, useCapture, callbackfunc, 24, "touchmove", targetThread);
      return 0;
    }

  function _emscripten_set_touchstart_callback_on_thread(target, userData, useCapture, callbackfunc, targetThread) {
      registerTouchEventCallback(target, userData, useCapture, callbackfunc, 22, "touchstart", targetThread);
      return 0;
    }

  function registerWheelEventCallback(target, userData, useCapture, callbackfunc, eventTypeId, eventTypeString, targetThread) {
      if (!JSEvents.wheelEvent) JSEvents.wheelEvent = _malloc( 104 );
  
      // The DOM Level 3 events spec event 'wheel'
      var wheelHandlerFunc = function(ev) {
        var e = ev || event;
        var wheelEvent = JSEvents.wheelEvent;
        fillMouseEventData(wheelEvent, e, target);
        HEAPF64[(((wheelEvent)+(72))>>3)] = e["deltaX"];
        HEAPF64[(((wheelEvent)+(80))>>3)] = e["deltaY"];
        HEAPF64[(((wheelEvent)+(88))>>3)] = e["deltaZ"];
        HEAP32[(((wheelEvent)+(96))>>2)] = e["deltaMode"];
        if ((function(a1, a2, a3) { return dynCall_iiii.apply(null, [callbackfunc, a1, a2, a3]); })(eventTypeId, wheelEvent, userData)) e.preventDefault();
      };
  
      var eventHandler = {
        target: target,
        allowsDeferredCalls: true,
        eventTypeString: eventTypeString,
        callbackfunc: callbackfunc,
        handlerFunc: wheelHandlerFunc,
        useCapture: useCapture
      };
      JSEvents.registerOrRemoveHandler(eventHandler);
    }
  function _emscripten_set_wheel_callback_on_thread(target, userData, useCapture, callbackfunc, targetThread) {
      target = findEventTarget(target);
      if (typeof target.onwheel != 'undefined') {
        registerWheelEventCallback(target, userData, useCapture, callbackfunc, 9, "wheel", targetThread);
        return 0;
      } else {
        return -1;
      }
    }

  function __webgl_enable_ANGLE_instanced_arrays(ctx) {
      // Extension available in WebGL 1 from Firefox 26 and Google Chrome 30 onwards. Core feature in WebGL 2.
      var ext = ctx.getExtension('ANGLE_instanced_arrays');
      if (ext) {
        ctx['vertexAttribDivisor'] = function(index, divisor) { ext['vertexAttribDivisorANGLE'](index, divisor); };
        ctx['drawArraysInstanced'] = function(mode, first, count, primcount) { ext['drawArraysInstancedANGLE'](mode, first, count, primcount); };
        ctx['drawElementsInstanced'] = function(mode, count, type, indices, primcount) { ext['drawElementsInstancedANGLE'](mode, count, type, indices, primcount); };
        return 1;
      }
    }
  
  function __webgl_enable_OES_vertex_array_object(ctx) {
      // Extension available in WebGL 1 from Firefox 25 and WebKit 536.28/desktop Safari 6.0.3 onwards. Core feature in WebGL 2.
      var ext = ctx.getExtension('OES_vertex_array_object');
      if (ext) {
        ctx['createVertexArray'] = function() { return ext['createVertexArrayOES'](); };
        ctx['deleteVertexArray'] = function(vao) { ext['deleteVertexArrayOES'](vao); };
        ctx['bindVertexArray'] = function(vao) { ext['bindVertexArrayOES'](vao); };
        ctx['isVertexArray'] = function(vao) { return ext['isVertexArrayOES'](vao); };
        return 1;
      }
    }
  
  function __webgl_enable_WEBGL_draw_buffers(ctx) {
      // Extension available in WebGL 1 from Firefox 28 onwards. Core feature in WebGL 2.
      var ext = ctx.getExtension('WEBGL_draw_buffers');
      if (ext) {
        ctx['drawBuffers'] = function(n, bufs) { ext['drawBuffersWEBGL'](n, bufs); };
        return 1;
      }
    }
  
  function __webgl_enable_WEBGL_draw_instanced_base_vertex_base_instance(ctx) {
      // Closure is expected to be allowed to minify the '.dibvbi' property, so not accessing it quoted.
      return !!(ctx.dibvbi = ctx.getExtension('WEBGL_draw_instanced_base_vertex_base_instance'));
    }
  
  function __webgl_enable_WEBGL_multi_draw_instanced_base_vertex_base_instance(ctx) {
      // Closure is expected to be allowed to minify the '.mdibvbi' property, so not accessing it quoted.
      return !!(ctx.mdibvbi = ctx.getExtension('WEBGL_multi_draw_instanced_base_vertex_base_instance'));
    }
  
  function __webgl_enable_WEBGL_multi_draw(ctx) {
      // Closure is expected to be allowed to minify the '.multiDrawWebgl' property, so not accessing it quoted.
      return !!(ctx.multiDrawWebgl = ctx.getExtension('WEBGL_multi_draw'));
    }
  var GL = {counter:1,buffers:[],mappedBuffers:{},programs:[],framebuffers:[],renderbuffers:[],textures:[],shaders:[],vaos:[],contexts:[],offscreenCanvases:{},queries:[],samplers:[],transformFeedbacks:[],syncs:[],byteSizeByTypeRoot:5120,byteSizeByType:[1,1,2,2,4,4,4,2,3,4,8],stringCache:{},stringiCache:{},unpackAlignment:4,recordError:function recordError(errorCode) {
        if (!GL.lastError) {
          GL.lastError = errorCode;
        }
      },getNewId:function(table) {
        var ret = GL.counter++;
        for (var i = table.length; i < ret; i++) {
          table[i] = null;
        }
        return ret;
      },MAX_TEMP_BUFFER_SIZE:2097152,numTempVertexBuffersPerSize:64,log2ceilLookup:function(i) {
        return 32 - Math.clz32(i === 0 ? 0 : i - 1);
      },generateTempBuffers:function(quads, context) {
        var largestIndex = GL.log2ceilLookup(GL.MAX_TEMP_BUFFER_SIZE);
        context.tempVertexBufferCounters1 = [];
        context.tempVertexBufferCounters2 = [];
        context.tempVertexBufferCounters1.length = context.tempVertexBufferCounters2.length = largestIndex+1;
        context.tempVertexBuffers1 = [];
        context.tempVertexBuffers2 = [];
        context.tempVertexBuffers1.length = context.tempVertexBuffers2.length = largestIndex+1;
        context.tempIndexBuffers = [];
        context.tempIndexBuffers.length = largestIndex+1;
        for (var i = 0; i <= largestIndex; ++i) {
          context.tempIndexBuffers[i] = null; // Created on-demand
          context.tempVertexBufferCounters1[i] = context.tempVertexBufferCounters2[i] = 0;
          var ringbufferLength = GL.numTempVertexBuffersPerSize;
          context.tempVertexBuffers1[i] = [];
          context.tempVertexBuffers2[i] = [];
          var ringbuffer1 = context.tempVertexBuffers1[i];
          var ringbuffer2 = context.tempVertexBuffers2[i];
          ringbuffer1.length = ringbuffer2.length = ringbufferLength;
          for (var j = 0; j < ringbufferLength; ++j) {
            ringbuffer1[j] = ringbuffer2[j] = null; // Created on-demand
          }
        }
  
        if (quads) {
          // GL_QUAD indexes can be precalculated
          context.tempQuadIndexBuffer = GLctx.createBuffer();
          context.GLctx.bindBuffer(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, context.tempQuadIndexBuffer);
          var numIndexes = GL.MAX_TEMP_BUFFER_SIZE >> 1;
          var quadIndexes = new Uint16Array(numIndexes);
          var i = 0, v = 0;
          while (1) {
            quadIndexes[i++] = v;
            if (i >= numIndexes) break;
            quadIndexes[i++] = v+1;
            if (i >= numIndexes) break;
            quadIndexes[i++] = v+2;
            if (i >= numIndexes) break;
            quadIndexes[i++] = v;
            if (i >= numIndexes) break;
            quadIndexes[i++] = v+2;
            if (i >= numIndexes) break;
            quadIndexes[i++] = v+3;
            if (i >= numIndexes) break;
            v += 4;
          }
          context.GLctx.bufferData(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, quadIndexes, 0x88E4 /*GL_STATIC_DRAW*/);
          context.GLctx.bindBuffer(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, null);
        }
      },getTempVertexBuffer:function getTempVertexBuffer(sizeBytes) {
        var idx = GL.log2ceilLookup(sizeBytes);
        var ringbuffer = GL.currentContext.tempVertexBuffers1[idx];
        var nextFreeBufferIndex = GL.currentContext.tempVertexBufferCounters1[idx];
        GL.currentContext.tempVertexBufferCounters1[idx] = (GL.currentContext.tempVertexBufferCounters1[idx]+1) & (GL.numTempVertexBuffersPerSize-1);
        var vbo = ringbuffer[nextFreeBufferIndex];
        if (vbo) {
          return vbo;
        }
        var prevVBO = GLctx.getParameter(0x8894 /*GL_ARRAY_BUFFER_BINDING*/);
        ringbuffer[nextFreeBufferIndex] = GLctx.createBuffer();
        GLctx.bindBuffer(0x8892 /*GL_ARRAY_BUFFER*/, ringbuffer[nextFreeBufferIndex]);
        GLctx.bufferData(0x8892 /*GL_ARRAY_BUFFER*/, 1 << idx, 0x88E8 /*GL_DYNAMIC_DRAW*/);
        GLctx.bindBuffer(0x8892 /*GL_ARRAY_BUFFER*/, prevVBO);
        return ringbuffer[nextFreeBufferIndex];
      },getTempIndexBuffer:function getTempIndexBuffer(sizeBytes) {
        var idx = GL.log2ceilLookup(sizeBytes);
        var ibo = GL.currentContext.tempIndexBuffers[idx];
        if (ibo) {
          return ibo;
        }
        var prevIBO = GLctx.getParameter(0x8895 /*ELEMENT_ARRAY_BUFFER_BINDING*/);
        GL.currentContext.tempIndexBuffers[idx] = GLctx.createBuffer();
        GLctx.bindBuffer(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, GL.currentContext.tempIndexBuffers[idx]);
        GLctx.bufferData(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, 1 << idx, 0x88E8 /*GL_DYNAMIC_DRAW*/);
        GLctx.bindBuffer(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, prevIBO);
        return GL.currentContext.tempIndexBuffers[idx];
      },newRenderingFrameStarted:function newRenderingFrameStarted() {
        if (!GL.currentContext) {
          return;
        }
        var vb = GL.currentContext.tempVertexBuffers1;
        GL.currentContext.tempVertexBuffers1 = GL.currentContext.tempVertexBuffers2;
        GL.currentContext.tempVertexBuffers2 = vb;
        vb = GL.currentContext.tempVertexBufferCounters1;
        GL.currentContext.tempVertexBufferCounters1 = GL.currentContext.tempVertexBufferCounters2;
        GL.currentContext.tempVertexBufferCounters2 = vb;
        var largestIndex = GL.log2ceilLookup(GL.MAX_TEMP_BUFFER_SIZE);
        for (var i = 0; i <= largestIndex; ++i) {
          GL.currentContext.tempVertexBufferCounters1[i] = 0;
        }
      },getSource:function(shader, count, string, length) {
        var source = '';
        for (var i = 0; i < count; ++i) {
          var len = length ? HEAP32[(((length)+(i*4))>>2)] : -1;
          source += UTF8ToString(HEAP32[(((string)+(i*4))>>2)], len < 0 ? undefined : len);
        }
        return source;
      },calcBufLength:function calcBufLength(size, type, stride, count) {
        if (stride > 0) {
          return count * stride;  // XXXvlad this is not exactly correct I don't think
        }
        var typeSize = GL.byteSizeByType[type - GL.byteSizeByTypeRoot];
        return size * typeSize * count;
      },usedTempBuffers:[],preDrawHandleClientVertexAttribBindings:function preDrawHandleClientVertexAttribBindings(count) {
        GL.resetBufferBinding = false;
  
        // TODO: initial pass to detect ranges we need to upload, might not need an upload per attrib
        for (var i = 0; i < GL.currentContext.maxVertexAttribs; ++i) {
          var cb = GL.currentContext.clientBuffers[i];
          if (!cb.clientside || !cb.enabled) continue;
  
          GL.resetBufferBinding = true;
  
          var size = GL.calcBufLength(cb.size, cb.type, cb.stride, count);
          var buf = GL.getTempVertexBuffer(size);
          GLctx.bindBuffer(0x8892 /*GL_ARRAY_BUFFER*/, buf);
          GLctx.bufferSubData(0x8892 /*GL_ARRAY_BUFFER*/,
                                   0,
                                   HEAPU8.subarray(cb.ptr, cb.ptr + size));
          cb.vertexAttribPointerAdaptor.call(GLctx, i, cb.size, cb.type, cb.normalized, cb.stride, 0);
        }
      },postDrawHandleClientVertexAttribBindings:function postDrawHandleClientVertexAttribBindings() {
        if (GL.resetBufferBinding) {
          GLctx.bindBuffer(0x8892 /*GL_ARRAY_BUFFER*/, GL.buffers[GLctx.currentArrayBufferBinding]);
        }
      },createContext:function(/** @type {HTMLCanvasElement} */ canvas, webGLContextAttributes) {
  
        // BUG: Workaround Safari WebGL issue: After successfully acquiring WebGL context on a canvas,
        // calling .getContext() will always return that context independent of which 'webgl' or 'webgl2'
        // context version was passed. See https://bugs.webkit.org/show_bug.cgi?id=222758 and
        // https://github.com/emscripten-core/emscripten/issues/13295.
        // TODO: Once the bug is fixed and shipped in Safari, adjust the Safari version field in above check.
        if (!canvas.getContextSafariWebGL2Fixed) {
          canvas.getContextSafariWebGL2Fixed = canvas.getContext;
          /** @type {function(this:HTMLCanvasElement, string, (Object|null)=): (Object|null)} */
          function fixedGetContext(ver, attrs) {
            var gl = canvas.getContextSafariWebGL2Fixed(ver, attrs);
            return ((ver == 'webgl') == (gl instanceof WebGLRenderingContext)) ? gl : null;
          }
          canvas.getContext = fixedGetContext;
        }
  
        var ctx = 
          (webGLContextAttributes.majorVersion > 1)
          ?
            canvas.getContext("webgl2", webGLContextAttributes)
          :
          (canvas.getContext("webgl", webGLContextAttributes)
            // https://caniuse.com/#feat=webgl
            );
  
        if (!ctx) return 0;
  
        var handle = GL.registerContext(ctx, webGLContextAttributes);
  
        return handle;
      },registerContext:function(ctx, webGLContextAttributes) {
        // without pthreads a context is just an integer ID
        var handle = GL.getNewId(GL.contexts);
  
        var context = {
          handle: handle,
          attributes: webGLContextAttributes,
          version: webGLContextAttributes.majorVersion,
          GLctx: ctx
        };
  
        // Store the created context object so that we can access the context given a canvas without having to pass the parameters again.
        if (ctx.canvas) ctx.canvas.GLctxObject = context;
        GL.contexts[handle] = context;
        if (typeof webGLContextAttributes.enableExtensionsByDefault == 'undefined' || webGLContextAttributes.enableExtensionsByDefault) {
          GL.initExtensions(context);
        }
  
        context.maxVertexAttribs = context.GLctx.getParameter(0x8869 /*GL_MAX_VERTEX_ATTRIBS*/);
        context.clientBuffers = [];
        for (var i = 0; i < context.maxVertexAttribs; i++) {
          context.clientBuffers[i] = { enabled: false, clientside: false, size: 0, type: 0, normalized: 0, stride: 0, ptr: 0, vertexAttribPointerAdaptor: null };
        }
  
        GL.generateTempBuffers(false, context);
  
        return handle;
      },makeContextCurrent:function(contextHandle) {
  
        GL.currentContext = GL.contexts[contextHandle]; // Active Emscripten GL layer context object.
        Module.ctx = GLctx = GL.currentContext && GL.currentContext.GLctx; // Active WebGL context object.
        return !(contextHandle && !GLctx);
      },getContext:function(contextHandle) {
        return GL.contexts[contextHandle];
      },deleteContext:function(contextHandle) {
        if (GL.currentContext === GL.contexts[contextHandle]) GL.currentContext = null;
        if (typeof JSEvents == 'object') JSEvents.removeAllHandlersOnTarget(GL.contexts[contextHandle].GLctx.canvas); // Release all JS event handlers on the DOM element that the GL context is associated with since the context is now deleted.
        if (GL.contexts[contextHandle] && GL.contexts[contextHandle].GLctx.canvas) GL.contexts[contextHandle].GLctx.canvas.GLctxObject = undefined; // Make sure the canvas object no longer refers to the context object so there are no GC surprises.
        GL.contexts[contextHandle] = null;
      },initExtensions:function(context) {
        // If this function is called without a specific context object, init the extensions of the currently active context.
        if (!context) context = GL.currentContext;
  
        if (context.initExtensionsDone) return;
        context.initExtensionsDone = true;
  
        var GLctx = context.GLctx;
  
        // Detect the presence of a few extensions manually, this GL interop layer itself will need to know if they exist.
  
        // Extensions that are only available in WebGL 1 (the calls will be no-ops if called on a WebGL 2 context active)
        __webgl_enable_ANGLE_instanced_arrays(GLctx);
        __webgl_enable_OES_vertex_array_object(GLctx);
        __webgl_enable_WEBGL_draw_buffers(GLctx);
        // Extensions that are available from WebGL >= 2 (no-op if called on a WebGL 1 context active)
        __webgl_enable_WEBGL_draw_instanced_base_vertex_base_instance(GLctx);
        __webgl_enable_WEBGL_multi_draw_instanced_base_vertex_base_instance(GLctx);
  
        // On WebGL 2, EXT_disjoint_timer_query is replaced with an alternative
        // that's based on core APIs, and exposes only the queryCounterEXT()
        // entrypoint.
        if (context.version >= 2) {
          GLctx.disjointTimerQueryExt = GLctx.getExtension("EXT_disjoint_timer_query_webgl2");
        }
  
        // However, Firefox exposes the WebGL 1 version on WebGL 2 as well and
        // thus we look for the WebGL 1 version again if the WebGL 2 version
        // isn't present. https://bugzilla.mozilla.org/show_bug.cgi?id=1328882
        if (context.version < 2 || !GLctx.disjointTimerQueryExt)
        {
          GLctx.disjointTimerQueryExt = GLctx.getExtension("EXT_disjoint_timer_query");
        }
  
        __webgl_enable_WEBGL_multi_draw(GLctx);
  
        // .getSupportedExtensions() can return null if context is lost, so coerce to empty array.
        var exts = GLctx.getSupportedExtensions() || [];
        exts.forEach(function(ext) {
          // WEBGL_lose_context, WEBGL_debug_renderer_info and WEBGL_debug_shaders are not enabled by default.
          if (!ext.includes('lose_context') && !ext.includes('debug')) {
            // Call .getExtension() to enable that extension permanently.
            GLctx.getExtension(ext);
          }
        });
      }};
  
  var __emscripten_webgl_power_preferences = ['default', 'low-power', 'high-performance'];
  function _emscripten_webgl_do_create_context(target, attributes) {
      assert(attributes);
      var a = attributes >> 2;
      var powerPreference = HEAP32[a + (24>>2)];
      var contextAttributes = {
        'alpha': !!HEAP32[a + (0>>2)],
        'depth': !!HEAP32[a + (4>>2)],
        'stencil': !!HEAP32[a + (8>>2)],
        'antialias': !!HEAP32[a + (12>>2)],
        'premultipliedAlpha': !!HEAP32[a + (16>>2)],
        'preserveDrawingBuffer': !!HEAP32[a + (20>>2)],
        'powerPreference': __emscripten_webgl_power_preferences[powerPreference],
        'failIfMajorPerformanceCaveat': !!HEAP32[a + (28>>2)],
        // The following are not predefined WebGL context attributes in the WebGL specification, so the property names can be minified by Closure.
        majorVersion: HEAP32[a + (32>>2)],
        minorVersion: HEAP32[a + (36>>2)],
        enableExtensionsByDefault: HEAP32[a + (40>>2)],
        explicitSwapControl: HEAP32[a + (44>>2)],
        proxyContextToMainThread: HEAP32[a + (48>>2)],
        renderViaOffscreenBackBuffer: HEAP32[a + (52>>2)]
      };
  
      var canvas = findCanvasEventTarget(target);
  
      if (!canvas) {
        return 0;
      }
  
      if (contextAttributes.explicitSwapControl) {
        return 0;
      }
  
      var contextHandle = GL.createContext(canvas, contextAttributes);
      return contextHandle;
    }
  function _emscripten_webgl_create_context(a0,a1
  ) {
  return _emscripten_webgl_do_create_context(a0,a1);
  }

  function _emscripten_webgl_destroy_context(contextHandle) {
      if (GL.currentContext == contextHandle) GL.currentContext = 0;
      GL.deleteContext(contextHandle);
    }

  function _emscripten_webgl_enable_extension(contextHandle, extension) {
      var context = GL.getContext(contextHandle);
      var extString = UTF8ToString(extension);
      if (extString.startsWith('GL_')) extString = extString.substr(3); // Allow enabling extensions both with "GL_" prefix and without.
  
      // Switch-board that pulls in code for all GL extensions, even if those are not used :/
      // Build with -s GL_SUPPORT_SIMPLE_ENABLE_EXTENSIONS = 0 to avoid this.
  
      // Obtain function entry points to WebGL 1 extension related functions.
      if (extString == 'ANGLE_instanced_arrays') __webgl_enable_ANGLE_instanced_arrays(GLctx);
      if (extString == 'OES_vertex_array_object') __webgl_enable_OES_vertex_array_object(GLctx);
      if (extString == 'WEBGL_draw_buffers') __webgl_enable_WEBGL_draw_buffers(GLctx);
  
      if (extString == 'WEBGL_draw_instanced_base_vertex_base_instance') __webgl_enable_WEBGL_draw_instanced_base_vertex_base_instance(GLctx);
      if (extString == 'WEBGL_multi_draw_instanced_base_vertex_base_instance') __webgl_enable_WEBGL_multi_draw_instanced_base_vertex_base_instance(GLctx);
  
      if (extString == 'WEBGL_multi_draw') __webgl_enable_WEBGL_multi_draw(GLctx);
  
      var ext = context.GLctx.getExtension(extString);
      return !!ext;
    }

  function _emscripten_webgl_do_get_current_context() {
      return GL.currentContext ? GL.currentContext.handle : 0;
    }
  function _emscripten_webgl_get_current_context(
  ) {
  return _emscripten_webgl_do_get_current_context();
  }

  function _emscripten_webgl_init_context_attributes(attributes) {
      assert(attributes);
      var a = attributes >> 2;
      for (var i = 0; i < (56>>2); ++i) {
        HEAP32[a+i] = 0;
      }
  
      HEAP32[a + (0>>2)] =
      HEAP32[a + (4>>2)] = 
      HEAP32[a + (12>>2)] = 
      HEAP32[a + (16>>2)] = 
      HEAP32[a + (32>>2)] = 
      HEAP32[a + (40>>2)] = 1;
  
    }

  function _emscripten_webgl_make_context_current(contextHandle) {
      var success = GL.makeContextCurrent(contextHandle);
      return success ? 0 : -5;
    }

  var ENV = {};
  
  function getExecutableName() {
      return thisProgram || './this.program';
    }
  function getEnvStrings() {
      if (!getEnvStrings.strings) {
        // Default values.
        // Browser language detection #8751
        var lang = ((typeof navigator == 'object' && navigator.languages && navigator.languages[0]) || 'C').replace('-', '_') + '.UTF-8';
        var env = {
          'USER': 'web_user',
          'LOGNAME': 'web_user',
          'PATH': '/',
          'PWD': '/',
          'HOME': '/home/web_user',
          'LANG': lang,
          '_': getExecutableName()
        };
        // Apply the user-provided values, if any.
        for (var x in ENV) {
          // x is a key in ENV; if ENV[x] is undefined, that means it was
          // explicitly set to be so. We allow user code to do that to
          // force variables with default values to remain unset.
          if (ENV[x] === undefined) delete env[x];
          else env[x] = ENV[x];
        }
        var strings = [];
        for (var x in env) {
          strings.push(x + '=' + env[x]);
        }
        getEnvStrings.strings = strings;
      }
      return getEnvStrings.strings;
    }
  function _environ_get(__environ, environ_buf) {
      var bufSize = 0;
      getEnvStrings().forEach(function(string, i) {
        var ptr = environ_buf + bufSize;
        HEAP32[(((__environ)+(i * 4))>>2)] = ptr;
        writeAsciiToMemory(string, ptr);
        bufSize += string.length + 1;
      });
      return 0;
    }

  function _environ_sizes_get(penviron_count, penviron_buf_size) {
      var strings = getEnvStrings();
      HEAP32[((penviron_count)>>2)] = strings.length;
      var bufSize = 0;
      strings.forEach(function(string) {
        bufSize += string.length + 1;
      });
      HEAP32[((penviron_buf_size)>>2)] = bufSize;
      return 0;
    }


  function _fd_close(fd) {
  try {
  
      var stream = SYSCALLS.getStreamFromFD(fd);
      FS.close(stream);
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return e.errno;
  }
  }

  function _fd_fdstat_get(fd, pbuf) {
  try {
  
      var stream = SYSCALLS.getStreamFromFD(fd);
      // All character devices are terminals (other things a Linux system would
      // assume is a character device, like the mouse, we have special APIs for).
      var type = stream.tty ? 2 :
                 FS.isDir(stream.mode) ? 3 :
                 FS.isLink(stream.mode) ? 7 :
                 4;
      HEAP8[((pbuf)>>0)] = type;
      // TODO HEAP16[(((pbuf)+(2))>>1)] = ?;
      // TODO (tempI64 = [?>>>0,(tempDouble=?,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math.min((+(Math.floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[(((pbuf)+(8))>>2)] = tempI64[0],HEAP32[(((pbuf)+(12))>>2)] = tempI64[1]);
      // TODO (tempI64 = [?>>>0,(tempDouble=?,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math.min((+(Math.floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[(((pbuf)+(16))>>2)] = tempI64[0],HEAP32[(((pbuf)+(20))>>2)] = tempI64[1]);
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return e.errno;
  }
  }

  function _fd_read(fd, iov, iovcnt, pnum) {
  try {
  
      var stream = SYSCALLS.getStreamFromFD(fd);
      var num = SYSCALLS.doReadv(stream, iov, iovcnt);
      HEAP32[((pnum)>>2)] = num;
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return e.errno;
  }
  }

  function _fd_seek(fd, offset_low, offset_high, whence, newOffset) {
  try {
  
      
      var stream = SYSCALLS.getStreamFromFD(fd);
      var HIGH_OFFSET = 0x100000000; // 2^32
      // use an unsigned operator on low and shift high by 32-bits
      var offset = offset_high * HIGH_OFFSET + (offset_low >>> 0);
  
      var DOUBLE_LIMIT = 0x20000000000000; // 2^53
      // we also check for equality since DOUBLE_LIMIT + 1 == DOUBLE_LIMIT
      if (offset <= -DOUBLE_LIMIT || offset >= DOUBLE_LIMIT) {
        return -61;
      }
  
      FS.llseek(stream, offset, whence);
      (tempI64 = [stream.position>>>0,(tempDouble=stream.position,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math.min((+(Math.floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[((newOffset)>>2)] = tempI64[0],HEAP32[(((newOffset)+(4))>>2)] = tempI64[1]);
      if (stream.getdents && offset === 0 && whence === 0) stream.getdents = null; // reset readdir state
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return e.errno;
  }
  }

  function _fd_write(fd, iov, iovcnt, pnum) {
  try {
  
      ;
      var stream = SYSCALLS.getStreamFromFD(fd);
      var num = SYSCALLS.doWritev(stream, iov, iovcnt);
      HEAP32[((pnum)>>2)] = num;
      return 0;
    } catch (e) {
    if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
    return e.errno;
  }
  }

  function _getTempRet0() {
      return getTempRet0();
    }

  function getHostByName(name) {
      // generate hostent
      var ret = _malloc(20); // XXX possibly leaked, as are others here
      var nameBuf = _malloc(name.length+1);
      stringToUTF8(name, nameBuf, name.length+1);
      HEAP32[((ret)>>2)] = nameBuf;
      var aliasesBuf = _malloc(4);
      HEAP32[((aliasesBuf)>>2)] = 0;
      HEAP32[(((ret)+(4))>>2)] = aliasesBuf;
      var afinet = 2;
      HEAP32[(((ret)+(8))>>2)] = afinet;
      HEAP32[(((ret)+(12))>>2)] = 4;
      var addrListBuf = _malloc(12);
      HEAP32[((addrListBuf)>>2)] = addrListBuf+8;
      HEAP32[(((addrListBuf)+(4))>>2)] = 0;
      HEAP32[(((addrListBuf)+(8))>>2)] = inetPton4(DNS.lookup_name(name));
      HEAP32[(((ret)+(16))>>2)] = addrListBuf;
      return ret;
    }
  function _gethostbyaddr(addr, addrlen, type) {
      if (type !== 2) {
        setErrNo(5);
        // TODO: set h_errno
        return null;
      }
      addr = HEAP32[((addr)>>2)]; // addr is in_addr
      var host = inetNtop4(addr);
      var lookup = DNS.lookup_addr(host);
      if (lookup) {
        host = lookup;
      }
      return getHostByName(host);
    }

  function _gethostbyname(name) {
      return getHostByName(UTF8ToString(name));
    }

  function _glActiveTexture(x0) { GLctx['activeTexture'](x0) }

  function _glAttachShader(program, shader) {
      program = GL.programs[program];
      shader = GL.shaders[shader];
      program[shader.shaderType] = shader;
      GLctx.attachShader(program, shader);
    }

  function _glBeginQuery(target, id) {
      GLctx['beginQuery'](target, GL.queries[id]);
    }

  function _glBindAttribLocation(program, index, name) {
      GLctx.bindAttribLocation(GL.programs[program], index, UTF8ToString(name));
    }

  function _glBindBuffer(target, buffer) {
      if (target == 0x8892 /*GL_ARRAY_BUFFER*/) {
        GLctx.currentArrayBufferBinding = buffer;
      } else if (target == 0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/) {
        GLctx.currentElementArrayBufferBinding = buffer;
      }
  
      if (target == 0x88EB /*GL_PIXEL_PACK_BUFFER*/) {
        // In WebGL 2 glReadPixels entry point, we need to use a different WebGL 2 API function call when a buffer is bound to
        // GL_PIXEL_PACK_BUFFER_BINDING point, so must keep track whether that binding point is non-null to know what is
        // the proper API function to call.
        GLctx.currentPixelPackBufferBinding = buffer;
      } else if (target == 0x88EC /*GL_PIXEL_UNPACK_BUFFER*/) {
        // In WebGL 2 gl(Compressed)Tex(Sub)Image[23]D entry points, we need to
        // use a different WebGL 2 API function call when a buffer is bound to
        // GL_PIXEL_UNPACK_BUFFER_BINDING point, so must keep track whether that
        // binding point is non-null to know what is the proper API function to
        // call.
        GLctx.currentPixelUnpackBufferBinding = buffer;
      }
      GLctx.bindBuffer(target, GL.buffers[buffer]);
    }

  function _glBindBufferBase(target, index, buffer) {
      GLctx['bindBufferBase'](target, index, GL.buffers[buffer]);
    }

  function _glBindBufferRange(target, index, buffer, offset, ptrsize) {
      GLctx['bindBufferRange'](target, index, GL.buffers[buffer], offset, ptrsize);
    }

  function _glBindFramebuffer(target, framebuffer) {
  
      GLctx.bindFramebuffer(target, GL.framebuffers[framebuffer]);
  
    }

  function _glBindRenderbuffer(target, renderbuffer) {
      GLctx.bindRenderbuffer(target, GL.renderbuffers[renderbuffer]);
    }

  function _glBindSampler(unit, sampler) {
      GLctx['bindSampler'](unit, GL.samplers[sampler]);
    }

  function _glBindTexture(target, texture) {
      GLctx.bindTexture(target, GL.textures[texture]);
    }

  function _glBindVertexArray(vao) {
      GLctx['bindVertexArray'](GL.vaos[vao]);
      var ibo = GLctx.getParameter(0x8895 /*ELEMENT_ARRAY_BUFFER_BINDING*/);
      GLctx.currentElementArrayBufferBinding = ibo ? (ibo.name | 0) : 0;
    }

  function _glBlendEquation(x0) { GLctx['blendEquation'](x0) }

  function _glBlendEquationSeparate(x0, x1) { GLctx['blendEquationSeparate'](x0, x1) }

  function _glBlendFuncSeparate(x0, x1, x2, x3) { GLctx['blendFuncSeparate'](x0, x1, x2, x3) }

  function _glBlitFramebuffer(x0, x1, x2, x3, x4, x5, x6, x7, x8, x9) { GLctx['blitFramebuffer'](x0, x1, x2, x3, x4, x5, x6, x7, x8, x9) }

  function _glBufferData(target, size, data, usage) {
  
      if (GL.currentContext.version >= 2) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
        if (data) {
          GLctx.bufferData(target, HEAPU8, usage, data, size);
        } else {
          GLctx.bufferData(target, size, usage);
        }
      } else {
        // N.b. here first form specifies a heap subarray, second form an integer size, so the ?: code here is polymorphic. It is advised to avoid
        // randomly mixing both uses in calling code, to avoid any potential JS engine JIT issues.
        GLctx.bufferData(target, data ? HEAPU8.subarray(data, data+size) : size, usage);
      }
    }

  function _glBufferSubData(target, offset, size, data) {
      if (GL.currentContext.version >= 2) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
        GLctx.bufferSubData(target, offset, HEAPU8, data, size);
        return;
      }
      GLctx.bufferSubData(target, offset, HEAPU8.subarray(data, data+size));
    }

  function _glCheckFramebufferStatus(x0) { return GLctx['checkFramebufferStatus'](x0) }

  function _glClear(x0) { GLctx['clear'](x0) }

  function _glClearBufferfi(x0, x1, x2, x3) { GLctx['clearBufferfi'](x0, x1, x2, x3) }

  function _glClearBufferfv(buffer, drawbuffer, value) {
  
      GLctx['clearBufferfv'](buffer, drawbuffer, HEAPF32, value>>2);
    }

  function _glClearBufferuiv(buffer, drawbuffer, value) {
  
      GLctx['clearBufferuiv'](buffer, drawbuffer, HEAPU32, value>>2);
    }

  function _glClearColor(x0, x1, x2, x3) { GLctx['clearColor'](x0, x1, x2, x3) }

  function _glClearDepthf(x0) { GLctx['clearDepth'](x0) }

  function _glClearStencil(x0) { GLctx['clearStencil'](x0) }

  function _glClientWaitSync(sync, flags, timeoutLo, timeoutHi) {
      // WebGL2 vs GLES3 differences: in GLES3, the timeout parameter is a uint64, where 0xFFFFFFFFFFFFFFFFULL means GL_TIMEOUT_IGNORED.
      // In JS, there's no 64-bit value types, so instead timeout is taken to be signed, and GL_TIMEOUT_IGNORED is given value -1.
      // Inherently the value accepted in the timeout is lossy, and can't take in arbitrary u64 bit pattern (but most likely doesn't matter)
      // See https://www.khronos.org/registry/webgl/specs/latest/2.0/#5.15
      return GLctx.clientWaitSync(GL.syncs[sync], flags, convertI32PairToI53(timeoutLo, timeoutHi));
    }

  function _glColorMask(red, green, blue, alpha) {
      GLctx.colorMask(!!red, !!green, !!blue, !!alpha);
    }

  function _glCompileShader(shader) {
      GLctx.compileShader(GL.shaders[shader]);
    }

  function _glCompressedTexImage2D(target, level, internalFormat, width, height, border, imageSize, data) {
      if (GL.currentContext.version >= 2) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
        if (GLctx.currentPixelUnpackBufferBinding) {
          GLctx['compressedTexImage2D'](target, level, internalFormat, width, height, border, imageSize, data);
        } else {
          GLctx['compressedTexImage2D'](target, level, internalFormat, width, height, border, HEAPU8, data, imageSize);
        }
        return;
      }
      GLctx['compressedTexImage2D'](target, level, internalFormat, width, height, border, data ? HEAPU8.subarray((data), (data+imageSize)) : null);
    }

  function _glCompressedTexImage3D(target, level, internalFormat, width, height, depth, border, imageSize, data) {
      if (GLctx.currentPixelUnpackBufferBinding) {
        GLctx['compressedTexImage3D'](target, level, internalFormat, width, height, depth, border, imageSize, data);
      } else {
        GLctx['compressedTexImage3D'](target, level, internalFormat, width, height, depth, border, HEAPU8, data, imageSize);
      }
    }

  function _glCompressedTexSubImage2D(target, level, xoffset, yoffset, width, height, format, imageSize, data) {
      if (GL.currentContext.version >= 2) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
        if (GLctx.currentPixelUnpackBufferBinding) {
          GLctx['compressedTexSubImage2D'](target, level, xoffset, yoffset, width, height, format, imageSize, data);
        } else {
          GLctx['compressedTexSubImage2D'](target, level, xoffset, yoffset, width, height, format, HEAPU8, data, imageSize);
        }
        return;
      }
      GLctx['compressedTexSubImage2D'](target, level, xoffset, yoffset, width, height, format, data ? HEAPU8.subarray((data), (data+imageSize)) : null);
    }

  function _glCompressedTexSubImage3D(target, level, xoffset, yoffset, zoffset, width, height, depth, format, imageSize, data) {
      if (GLctx.currentPixelUnpackBufferBinding) {
        GLctx['compressedTexSubImage3D'](target, level, xoffset, yoffset, zoffset, width, height, depth, format, imageSize, data);
      } else {
        GLctx['compressedTexSubImage3D'](target, level, xoffset, yoffset, zoffset, width, height, depth, format, HEAPU8, data, imageSize);
      }
    }

  function _glCopyBufferSubData(x0, x1, x2, x3, x4) { GLctx['copyBufferSubData'](x0, x1, x2, x3, x4) }

  function _glCopyTexImage2D(x0, x1, x2, x3, x4, x5, x6, x7) { GLctx['copyTexImage2D'](x0, x1, x2, x3, x4, x5, x6, x7) }

  function _glCopyTexSubImage2D(x0, x1, x2, x3, x4, x5, x6, x7) { GLctx['copyTexSubImage2D'](x0, x1, x2, x3, x4, x5, x6, x7) }

  function _glCreateProgram() {
      var id = GL.getNewId(GL.programs);
      var program = GLctx.createProgram();
      // Store additional information needed for each shader program:
      program.name = id;
      // Lazy cache results of glGetProgramiv(GL_ACTIVE_UNIFORM_MAX_LENGTH/GL_ACTIVE_ATTRIBUTE_MAX_LENGTH/GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH)
      program.maxUniformLength = program.maxAttributeLength = program.maxUniformBlockNameLength = 0;
      program.uniformIdCounter = 1;
      GL.programs[id] = program;
      return id;
    }

  function _glCreateShader(shaderType) {
      var id = GL.getNewId(GL.shaders);
      GL.shaders[id] = GLctx.createShader(shaderType);
  
      // GL_VERTEX_SHADER = 0x8B31, GL_FRAGMENT_SHADER = 0x8B30
      GL.shaders[id].shaderType = shaderType&1?'vs':'fs';
  
      return id;
    }

  function _glCullFace(x0) { GLctx['cullFace'](x0) }

  function _glDeleteBuffers(n, buffers) {
      for (var i = 0; i < n; i++) {
        var id = HEAP32[(((buffers)+(i*4))>>2)];
        var buffer = GL.buffers[id];
  
        // From spec: "glDeleteBuffers silently ignores 0's and names that do not
        // correspond to existing buffer objects."
        if (!buffer) continue;
  
        GLctx.deleteBuffer(buffer);
        buffer.name = 0;
        GL.buffers[id] = null;
  
        if (id == GLctx.currentArrayBufferBinding) GLctx.currentArrayBufferBinding = 0;
        if (id == GLctx.currentElementArrayBufferBinding) GLctx.currentElementArrayBufferBinding = 0;
        if (id == GLctx.currentPixelPackBufferBinding) GLctx.currentPixelPackBufferBinding = 0;
        if (id == GLctx.currentPixelUnpackBufferBinding) GLctx.currentPixelUnpackBufferBinding = 0;
      }
    }

  function _glDeleteFramebuffers(n, framebuffers) {
      for (var i = 0; i < n; ++i) {
        var id = HEAP32[(((framebuffers)+(i*4))>>2)];
        var framebuffer = GL.framebuffers[id];
        if (!framebuffer) continue; // GL spec: "glDeleteFramebuffers silently ignores 0s and names that do not correspond to existing framebuffer objects".
        GLctx.deleteFramebuffer(framebuffer);
        framebuffer.name = 0;
        GL.framebuffers[id] = null;
      }
    }

  function _glDeleteProgram(id) {
      if (!id) return;
      var program = GL.programs[id];
      if (!program) { // glDeleteProgram actually signals an error when deleting a nonexisting object, unlike some other GL delete functions.
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        return;
      }
      GLctx.deleteProgram(program);
      program.name = 0;
      GL.programs[id] = null;
    }

  function _glDeleteQueries(n, ids) {
      for (var i = 0; i < n; i++) {
        var id = HEAP32[(((ids)+(i*4))>>2)];
        var query = GL.queries[id];
        if (!query) continue; // GL spec: "unused names in ids are ignored, as is the name zero."
        GLctx['deleteQuery'](query);
        GL.queries[id] = null;
      }
    }

  function _glDeleteRenderbuffers(n, renderbuffers) {
      for (var i = 0; i < n; i++) {
        var id = HEAP32[(((renderbuffers)+(i*4))>>2)];
        var renderbuffer = GL.renderbuffers[id];
        if (!renderbuffer) continue; // GL spec: "glDeleteRenderbuffers silently ignores 0s and names that do not correspond to existing renderbuffer objects".
        GLctx.deleteRenderbuffer(renderbuffer);
        renderbuffer.name = 0;
        GL.renderbuffers[id] = null;
      }
    }

  function _glDeleteSamplers(n, samplers) {
      for (var i = 0; i < n; i++) {
        var id = HEAP32[(((samplers)+(i*4))>>2)];
        var sampler = GL.samplers[id];
        if (!sampler) continue;
        GLctx['deleteSampler'](sampler);
        sampler.name = 0;
        GL.samplers[id] = null;
      }
    }

  function _glDeleteShader(id) {
      if (!id) return;
      var shader = GL.shaders[id];
      if (!shader) { // glDeleteShader actually signals an error when deleting a nonexisting object, unlike some other GL delete functions.
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        return;
      }
      GLctx.deleteShader(shader);
      GL.shaders[id] = null;
    }

  function _glDeleteSync(id) {
      if (!id) return;
      var sync = GL.syncs[id];
      if (!sync) { // glDeleteSync signals an error when deleting a nonexisting object, unlike some other GL delete functions.
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        return;
      }
      GLctx.deleteSync(sync);
      sync.name = 0;
      GL.syncs[id] = null;
    }

  function _glDeleteTextures(n, textures) {
      for (var i = 0; i < n; i++) {
        var id = HEAP32[(((textures)+(i*4))>>2)];
        var texture = GL.textures[id];
        if (!texture) continue; // GL spec: "glDeleteTextures silently ignores 0s and names that do not correspond to existing textures".
        GLctx.deleteTexture(texture);
        texture.name = 0;
        GL.textures[id] = null;
      }
    }

  function _glDeleteVertexArrays(n, vaos) {
      for (var i = 0; i < n; i++) {
        var id = HEAP32[(((vaos)+(i*4))>>2)];
        GLctx['deleteVertexArray'](GL.vaos[id]);
        GL.vaos[id] = null;
      }
    }

  function _glDepthFunc(x0) { GLctx['depthFunc'](x0) }

  function _glDepthMask(flag) {
      GLctx.depthMask(!!flag);
    }

  function _glDetachShader(program, shader) {
      GLctx.detachShader(GL.programs[program], GL.shaders[shader]);
    }

  function _glDisable(x0) { GLctx['disable'](x0) }

  function _glDisableVertexAttribArray(index) {
      var cb = GL.currentContext.clientBuffers[index];
      cb.enabled = false;
      GLctx.disableVertexAttribArray(index);
    }

  function _glDrawArrays(mode, first, count) {
      // bind any client-side buffers
      GL.preDrawHandleClientVertexAttribBindings(first + count);
  
      GLctx.drawArrays(mode, first, count);
  
      GL.postDrawHandleClientVertexAttribBindings();
    }

  function _glDrawArraysInstanced(mode, first, count, primcount) {
      GLctx['drawArraysInstanced'](mode, first, count, primcount);
    }

  var tempFixedLengthArray = [];
  function _glDrawBuffers(n, bufs) {
  
      var bufArray = tempFixedLengthArray[n];
      for (var i = 0; i < n; i++) {
        bufArray[i] = HEAP32[(((bufs)+(i*4))>>2)];
      }
  
      GLctx['drawBuffers'](bufArray);
    }

  function _glDrawElements(mode, count, type, indices) {
      var buf;
      if (!GLctx.currentElementArrayBufferBinding) {
        var size = GL.calcBufLength(1, type, 0, count);
        buf = GL.getTempIndexBuffer(size);
        GLctx.bindBuffer(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, buf);
        GLctx.bufferSubData(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/,
                                 0,
                                 HEAPU8.subarray(indices, indices + size));
        // the index is now 0
        indices = 0;
      }
  
      // bind any client-side buffers
      GL.preDrawHandleClientVertexAttribBindings(count);
  
      GLctx.drawElements(mode, count, type, indices);
  
      GL.postDrawHandleClientVertexAttribBindings(count);
  
      if (!GLctx.currentElementArrayBufferBinding) {
        GLctx.bindBuffer(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, null);
      }
    }

  function _glDrawElementsInstanced(mode, count, type, indices, primcount) {
      GLctx['drawElementsInstanced'](mode, count, type, indices, primcount);
    }

  function _glEnable(x0) { GLctx['enable'](x0) }

  function _glEnableVertexAttribArray(index) {
      var cb = GL.currentContext.clientBuffers[index];
      cb.enabled = true;
      GLctx.enableVertexAttribArray(index);
    }

  function _glEndQuery(x0) { GLctx['endQuery'](x0) }

  function _glFenceSync(condition, flags) {
      var sync = GLctx.fenceSync(condition, flags);
      if (sync) {
        var id = GL.getNewId(GL.syncs);
        sync.name = id;
        GL.syncs[id] = sync;
        return id;
      } else {
        return 0; // Failed to create a sync object
      }
    }

  function _glFinish() { GLctx['finish']() }

  function _glFlush() { GLctx['flush']() }

  function emscriptenWebGLGetBufferBinding(target) {
      switch (target) {
        case 0x8892 /*GL_ARRAY_BUFFER*/: target = 0x8894 /*GL_ARRAY_BUFFER_BINDING*/; break;
        case 0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/: target = 0x8895 /*GL_ELEMENT_ARRAY_BUFFER_BINDING*/; break;
        case 0x88EB /*GL_PIXEL_PACK_BUFFER*/: target = 0x88ED /*GL_PIXEL_PACK_BUFFER_BINDING*/; break;
        case 0x88EC /*GL_PIXEL_UNPACK_BUFFER*/: target = 0x88EF /*GL_PIXEL_UNPACK_BUFFER_BINDING*/; break;
        case 0x8C8E /*GL_TRANSFORM_FEEDBACK_BUFFER*/: target = 0x8C8F /*GL_TRANSFORM_FEEDBACK_BUFFER_BINDING*/; break;
        case 0x8F36 /*GL_COPY_READ_BUFFER*/: target = 0x8F36 /*GL_COPY_READ_BUFFER_BINDING*/; break;
        case 0x8F37 /*GL_COPY_WRITE_BUFFER*/: target = 0x8F37 /*GL_COPY_WRITE_BUFFER_BINDING*/; break;
        case 0x8A11 /*GL_UNIFORM_BUFFER*/: target = 0x8A28 /*GL_UNIFORM_BUFFER_BINDING*/; break;
        // In default case, fall through and assume passed one of the _BINDING enums directly.
      }
      var buffer = GLctx.getParameter(target);
      if (buffer) return buffer.name|0;
      else return 0;
    }
  
  function emscriptenWebGLValidateMapBufferTarget(target) {
      switch (target) {
        case 0x8892: // GL_ARRAY_BUFFER
        case 0x8893: // GL_ELEMENT_ARRAY_BUFFER
        case 0x8F36: // GL_COPY_READ_BUFFER
        case 0x8F37: // GL_COPY_WRITE_BUFFER
        case 0x88EB: // GL_PIXEL_PACK_BUFFER
        case 0x88EC: // GL_PIXEL_UNPACK_BUFFER
        case 0x8C2A: // GL_TEXTURE_BUFFER
        case 0x8C8E: // GL_TRANSFORM_FEEDBACK_BUFFER
        case 0x8A11: // GL_UNIFORM_BUFFER
          return true;
        default:
          return false;
      }
    }
  function _glFlushMappedBufferRange(target, offset, length) {
      if (!emscriptenWebGLValidateMapBufferTarget(target)) {
        GL.recordError(0x500/*GL_INVALID_ENUM*/);
        err('GL_INVALID_ENUM in glFlushMappedBufferRange');
        return;
      }
  
      var mapping = GL.mappedBuffers[emscriptenWebGLGetBufferBinding(target)];
      if (!mapping) {
        GL.recordError(0x502 /* GL_INVALID_OPERATION */);
        err('buffer was never mapped in glFlushMappedBufferRange');
        return;
      }
  
      if (!(mapping.access & 0x10)) {
        GL.recordError(0x502 /* GL_INVALID_OPERATION */);
        err('buffer was not mapped with GL_MAP_FLUSH_EXPLICIT_BIT in glFlushMappedBufferRange');
        return;
      }
      if (offset < 0 || length < 0 || offset + length > mapping.length) {
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        err('invalid range in glFlushMappedBufferRange');
        return;
      }
  
      GLctx.bufferSubData(
        target,
        mapping.offset,
        HEAPU8.subarray(mapping.mem + offset, mapping.mem + offset + length));
    }

  function _glFramebufferRenderbuffer(target, attachment, renderbuffertarget, renderbuffer) {
      GLctx.framebufferRenderbuffer(target, attachment, renderbuffertarget,
                                         GL.renderbuffers[renderbuffer]);
    }

  function _glFramebufferTexture2D(target, attachment, textarget, texture, level) {
      GLctx.framebufferTexture2D(target, attachment, textarget,
                                      GL.textures[texture], level);
    }

  function _glFramebufferTextureLayer(target, attachment, texture, level, layer) {
      GLctx.framebufferTextureLayer(target, attachment, GL.textures[texture], level, layer);
    }

  function _glFrontFace(x0) { GLctx['frontFace'](x0) }

  function __glGenObject(n, buffers, createFunction, objectTable
      ) {
      for (var i = 0; i < n; i++) {
        var buffer = GLctx[createFunction]();
        var id = buffer && GL.getNewId(objectTable);
        if (buffer) {
          buffer.name = id;
          objectTable[id] = buffer;
        } else {
          GL.recordError(0x502 /* GL_INVALID_OPERATION */);
        }
        HEAP32[(((buffers)+(i*4))>>2)] = id;
      }
    }
  function _glGenBuffers(n, buffers) {
      __glGenObject(n, buffers, 'createBuffer', GL.buffers
        );
    }

  function _glGenFramebuffers(n, ids) {
      __glGenObject(n, ids, 'createFramebuffer', GL.framebuffers
        );
    }

  function _glGenQueries(n, ids) {
      __glGenObject(n, ids, 'createQuery', GL.queries
        );
    }

  function _glGenRenderbuffers(n, renderbuffers) {
      __glGenObject(n, renderbuffers, 'createRenderbuffer', GL.renderbuffers
        );
    }

  function _glGenSamplers(n, samplers) {
      __glGenObject(n, samplers, 'createSampler', GL.samplers
        );
    }

  function _glGenTextures(n, textures) {
      __glGenObject(n, textures, 'createTexture', GL.textures
        );
    }

  function _glGenVertexArrays(n, arrays) {
      __glGenObject(n, arrays, 'createVertexArray', GL.vaos
        );
    }

  function _glGenerateMipmap(x0) { GLctx['generateMipmap'](x0) }

  function __glGetActiveAttribOrUniform(funcName, program, index, bufSize, length, size, type, name) {
      program = GL.programs[program];
      var info = GLctx[funcName](program, index);
      if (info) { // If an error occurs, nothing will be written to length, size and type and name.
        var numBytesWrittenExclNull = name && stringToUTF8(info.name, name, bufSize);
        if (length) HEAP32[((length)>>2)] = numBytesWrittenExclNull;
        if (size) HEAP32[((size)>>2)] = info.size;
        if (type) HEAP32[((type)>>2)] = info.type;
      }
    }
  function _glGetActiveAttrib(program, index, bufSize, length, size, type, name) {
      __glGetActiveAttribOrUniform('getActiveAttrib', program, index, bufSize, length, size, type, name);
    }

  function _glGetActiveUniform(program, index, bufSize, length, size, type, name) {
      __glGetActiveAttribOrUniform('getActiveUniform', program, index, bufSize, length, size, type, name);
    }

  function _glGetActiveUniformBlockName(program, uniformBlockIndex, bufSize, length, uniformBlockName) {
      program = GL.programs[program];
  
      var result = GLctx['getActiveUniformBlockName'](program, uniformBlockIndex);
      if (!result) return; // If an error occurs, nothing will be written to uniformBlockName or length.
      if (uniformBlockName && bufSize > 0) {
        var numBytesWrittenExclNull = stringToUTF8(result, uniformBlockName, bufSize);
        if (length) HEAP32[((length)>>2)] = numBytesWrittenExclNull;
      } else {
        if (length) HEAP32[((length)>>2)] = 0;
      }
    }

  function _glGetActiveUniformBlockiv(program, uniformBlockIndex, pname, params) {
      if (!params) {
        // GLES2 specification does not specify how to behave if params is a null pointer. Since calling this function does not make sense
        // if params == null, issue a GL error to notify user about it.
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        return;
      }
      program = GL.programs[program];
  
      if (pname == 0x8A41 /* GL_UNIFORM_BLOCK_NAME_LENGTH */) {
        var name = GLctx['getActiveUniformBlockName'](program, uniformBlockIndex);
        HEAP32[((params)>>2)] = name.length+1;
        return;
      }
  
      var result = GLctx['getActiveUniformBlockParameter'](program, uniformBlockIndex, pname);
      if (result === null) return; // If an error occurs, nothing should be written to params.
      if (pname == 0x8A43 /*GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES*/) {
        for (var i = 0; i < result.length; i++) {
          HEAP32[(((params)+(i*4))>>2)] = result[i];
        }
      } else {
        HEAP32[((params)>>2)] = result;
      }
    }

  function _glGetActiveUniformsiv(program, uniformCount, uniformIndices, pname, params) {
      if (!params) {
        // GLES2 specification does not specify how to behave if params is a null pointer. Since calling this function does not make sense
        // if params == null, issue a GL error to notify user about it.
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        return;
      }
      if (uniformCount > 0 && uniformIndices == 0) {
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        return;
      }
      program = GL.programs[program];
      var ids = [];
      for (var i = 0; i < uniformCount; i++) {
        ids.push(HEAP32[(((uniformIndices)+(i*4))>>2)]);
      }
  
      var result = GLctx['getActiveUniforms'](program, ids, pname);
      if (!result) return; // GL spec: If an error is generated, nothing is written out to params.
  
      var len = result.length;
      for (var i = 0; i < len; i++) {
        HEAP32[(((params)+(i*4))>>2)] = result[i];
      }
    }

  function _glGetAttribLocation(program, name) {
      return GLctx.getAttribLocation(GL.programs[program], UTF8ToString(name));
    }

  function _glGetBufferSubData(target, offset, size, data) {
      if (!data) {
        // GLES2 specification does not specify how to behave if data is a null pointer. Since calling this function does not make sense
        // if data == null, issue a GL error to notify user about it.
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        return;
      }
      GLctx['getBufferSubData'](target, offset, HEAPU8, data, size);
    }

  function _glGetError() {
      var error = GLctx.getError() || GL.lastError;
      GL.lastError = 0/*GL_NO_ERROR*/;
      return error;
    }

  function _glGetFramebufferAttachmentParameteriv(target, attachment, pname, params) {
      var result = GLctx.getFramebufferAttachmentParameter(target, attachment, pname);
      if (result instanceof WebGLRenderbuffer ||
          result instanceof WebGLTexture) {
        result = result.name | 0;
      }
      HEAP32[((params)>>2)] = result;
    }

  function readI53FromI64(ptr) {
      return HEAPU32[ptr>>2] + HEAP32[ptr+4>>2] * 4294967296;
    }
  
  function readI53FromU64(ptr) {
      return HEAPU32[ptr>>2] + HEAPU32[ptr+4>>2] * 4294967296;
    }
  function writeI53ToI64(ptr, num) {
      HEAPU32[ptr>>2] = num;
      HEAPU32[ptr+4>>2] = (num - HEAPU32[ptr>>2])/4294967296;
      var deserialized = (num >= 0) ? readI53FromU64(ptr) : readI53FromI64(ptr);
      if (deserialized != num) warnOnce('writeI53ToI64() out of range: serialized JS Number ' + num + ' to Wasm heap as bytes lo=0x' + HEAPU32[ptr>>2].toString(16) + ', hi=0x' + HEAPU32[ptr+4>>2].toString(16) + ', which deserializes back to ' + deserialized + ' instead!');
    }
  function emscriptenWebGLGetIndexed(target, index, data, type) {
      if (!data) {
        // GLES2 specification does not specify how to behave if data is a null pointer. Since calling this function does not make sense
        // if data == null, issue a GL error to notify user about it.
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        return;
      }
      var result = GLctx['getIndexedParameter'](target, index);
      var ret;
      switch (typeof result) {
        case 'boolean':
          ret = result ? 1 : 0;
          break;
        case 'number':
          ret = result;
          break;
        case 'object':
          if (result === null) {
            switch (target) {
              case 0x8C8F: // TRANSFORM_FEEDBACK_BUFFER_BINDING
              case 0x8A28: // UNIFORM_BUFFER_BINDING
                ret = 0;
                break;
              default: {
                GL.recordError(0x500); // GL_INVALID_ENUM
                return;
              }
            }
          } else if (result instanceof WebGLBuffer) {
            ret = result.name | 0;
          } else {
            GL.recordError(0x500); // GL_INVALID_ENUM
            return;
          }
          break;
        default:
          GL.recordError(0x500); // GL_INVALID_ENUM
          return;
      }
  
      switch (type) {
        case 1: writeI53ToI64(data, ret); break;
        case 0: HEAP32[((data)>>2)] = ret; break;
        case 2: HEAPF32[((data)>>2)] = ret; break;
        case 4: HEAP8[((data)>>0)] = ret ? 1 : 0; break;
        default: throw 'internal emscriptenWebGLGetIndexed() error, bad type: ' + type;
      }
    }
  function _glGetIntegeri_v(target, index, data) {
      emscriptenWebGLGetIndexed(target, index, data, 0);
    }

  function emscriptenWebGLGet(name_, p, type) {
      // Guard against user passing a null pointer.
      // Note that GLES2 spec does not say anything about how passing a null pointer should be treated.
      // Testing on desktop core GL 3, the application crashes on glGetIntegerv to a null pointer, but
      // better to report an error instead of doing anything random.
      if (!p) {
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        return;
      }
      var ret = undefined;
      switch (name_) { // Handle a few trivial GLES values
        case 0x8DFA: // GL_SHADER_COMPILER
          ret = 1;
          break;
        case 0x8DF8: // GL_SHADER_BINARY_FORMATS
          if (type != 0 && type != 1) {
            GL.recordError(0x500); // GL_INVALID_ENUM
          }
          return; // Do not write anything to the out pointer, since no binary formats are supported.
        case 0x87FE: // GL_NUM_PROGRAM_BINARY_FORMATS
        case 0x8DF9: // GL_NUM_SHADER_BINARY_FORMATS
          ret = 0;
          break;
        case 0x86A2: // GL_NUM_COMPRESSED_TEXTURE_FORMATS
          // WebGL doesn't have GL_NUM_COMPRESSED_TEXTURE_FORMATS (it's obsolete since GL_COMPRESSED_TEXTURE_FORMATS returns a JS array that can be queried for length),
          // so implement it ourselves to allow C++ GLES2 code get the length.
          var formats = GLctx.getParameter(0x86A3 /*GL_COMPRESSED_TEXTURE_FORMATS*/);
          ret = formats ? formats.length : 0;
          break;
        case 0x826E: // GL_MAX_UNIFORM_LOCATIONS
          // This is an arbitrary limit, must be large enough to allow practical
          // use, but small enough to still keep a range for automatic uniform
          // locations, which get assigned numbers larger than this.
          ret = 1048576;
          break;
  
        case 0x821D: // GL_NUM_EXTENSIONS
          if (GL.currentContext.version < 2) {
            GL.recordError(0x502 /* GL_INVALID_OPERATION */); // Calling GLES3/WebGL2 function with a GLES2/WebGL1 context
            return;
          }
          // .getSupportedExtensions() can return null if context is lost, so coerce to empty array.
          var exts = GLctx.getSupportedExtensions() || [];
          ret = 2 * exts.length; // each extension is duplicated, first in unprefixed WebGL form, and then a second time with "GL_" prefix.
          break;
        case 0x821B: // GL_MAJOR_VERSION
        case 0x821C: // GL_MINOR_VERSION
          if (GL.currentContext.version < 2) {
            GL.recordError(0x500); // GL_INVALID_ENUM
            return;
          }
          ret = name_ == 0x821B ? 3 : 0; // return version 3.0
          break;
      }
  
      if (ret === undefined) {
        var result = GLctx.getParameter(name_);
        switch (typeof result) {
          case "number":
            ret = result;
            break;
          case "boolean":
            ret = result ? 1 : 0;
            break;
          case "string":
            GL.recordError(0x500); // GL_INVALID_ENUM
            return;
          case "object":
            if (result === null) {
              // null is a valid result for some (e.g., which buffer is bound - perhaps nothing is bound), but otherwise
              // can mean an invalid name_, which we need to report as an error
              switch (name_) {
                case 0x8894: // ARRAY_BUFFER_BINDING
                case 0x8B8D: // CURRENT_PROGRAM
                case 0x8895: // ELEMENT_ARRAY_BUFFER_BINDING
                case 0x8CA6: // FRAMEBUFFER_BINDING or DRAW_FRAMEBUFFER_BINDING
                case 0x8CA7: // RENDERBUFFER_BINDING
                case 0x8069: // TEXTURE_BINDING_2D
                case 0x85B5: // WebGL 2 GL_VERTEX_ARRAY_BINDING, or WebGL 1 extension OES_vertex_array_object GL_VERTEX_ARRAY_BINDING_OES
                case 0x8F36: // COPY_READ_BUFFER_BINDING or COPY_READ_BUFFER
                case 0x8F37: // COPY_WRITE_BUFFER_BINDING or COPY_WRITE_BUFFER
                case 0x88ED: // PIXEL_PACK_BUFFER_BINDING
                case 0x88EF: // PIXEL_UNPACK_BUFFER_BINDING
                case 0x8CAA: // READ_FRAMEBUFFER_BINDING
                case 0x8919: // SAMPLER_BINDING
                case 0x8C1D: // TEXTURE_BINDING_2D_ARRAY
                case 0x806A: // TEXTURE_BINDING_3D
                case 0x8E25: // TRANSFORM_FEEDBACK_BINDING
                case 0x8C8F: // TRANSFORM_FEEDBACK_BUFFER_BINDING
                case 0x8A28: // UNIFORM_BUFFER_BINDING
                case 0x8514: { // TEXTURE_BINDING_CUBE_MAP
                  ret = 0;
                  break;
                }
                default: {
                  GL.recordError(0x500); // GL_INVALID_ENUM
                  return;
                }
              }
            } else if (result instanceof Float32Array ||
                       result instanceof Uint32Array ||
                       result instanceof Int32Array ||
                       result instanceof Array) {
              for (var i = 0; i < result.length; ++i) {
                switch (type) {
                  case 0: HEAP32[(((p)+(i*4))>>2)] = result[i]; break;
                  case 2: HEAPF32[(((p)+(i*4))>>2)] = result[i]; break;
                  case 4: HEAP8[(((p)+(i))>>0)] = result[i] ? 1 : 0; break;
                }
              }
              return;
            } else {
              try {
                ret = result.name | 0;
              } catch(e) {
                GL.recordError(0x500); // GL_INVALID_ENUM
                err('GL_INVALID_ENUM in glGet' + type + 'v: Unknown object returned from WebGL getParameter(' + name_ + ')! (error: ' + e + ')');
                return;
              }
            }
            break;
          default:
            GL.recordError(0x500); // GL_INVALID_ENUM
            err('GL_INVALID_ENUM in glGet' + type + 'v: Native code calling glGet' + type + 'v(' + name_ + ') and it returns ' + result + ' of type ' + typeof(result) + '!');
            return;
        }
      }
  
      switch (type) {
        case 1: writeI53ToI64(p, ret); break;
        case 0: HEAP32[((p)>>2)] = ret; break;
        case 2:   HEAPF32[((p)>>2)] = ret; break;
        case 4: HEAP8[((p)>>0)] = ret ? 1 : 0; break;
      }
    }
  function _glGetIntegerv(name_, p) {
      emscriptenWebGLGet(name_, p, 0);
    }

  function _glGetInternalformativ(target, internalformat, pname, bufSize, params) {
      if (bufSize < 0) {
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        return;
      }
      if (!params) {
        // GLES3 specification does not specify how to behave if values is a null pointer. Since calling this function does not make sense
        // if values == null, issue a GL error to notify user about it.
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        return;
      }
      var ret = GLctx['getInternalformatParameter'](target, internalformat, pname);
      if (ret === null) return;
      for (var i = 0; i < ret.length && i < bufSize; ++i) {
        HEAP32[(((params)+(i*4))>>2)] = ret[i];
      }
    }

  function _glGetProgramBinary(program, bufSize, length, binaryFormat, binary) {
      GL.recordError(0x502/*GL_INVALID_OPERATION*/);
    }

  function _glGetProgramInfoLog(program, maxLength, length, infoLog) {
      var log = GLctx.getProgramInfoLog(GL.programs[program]);
      if (log === null) log = '(unknown error)';
      var numBytesWrittenExclNull = (maxLength > 0 && infoLog) ? stringToUTF8(log, infoLog, maxLength) : 0;
      if (length) HEAP32[((length)>>2)] = numBytesWrittenExclNull;
    }

  function _glGetProgramiv(program, pname, p) {
      if (!p) {
        // GLES2 specification does not specify how to behave if p is a null pointer. Since calling this function does not make sense
        // if p == null, issue a GL error to notify user about it.
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        return;
      }
  
      if (program >= GL.counter) {
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        return;
      }
  
      program = GL.programs[program];
  
      if (pname == 0x8B84) { // GL_INFO_LOG_LENGTH
        var log = GLctx.getProgramInfoLog(program);
        if (log === null) log = '(unknown error)';
        HEAP32[((p)>>2)] = log.length + 1;
      } else if (pname == 0x8B87 /* GL_ACTIVE_UNIFORM_MAX_LENGTH */) {
        if (!program.maxUniformLength) {
          for (var i = 0; i < GLctx.getProgramParameter(program, 0x8B86/*GL_ACTIVE_UNIFORMS*/); ++i) {
            program.maxUniformLength = Math.max(program.maxUniformLength, GLctx.getActiveUniform(program, i).name.length+1);
          }
        }
        HEAP32[((p)>>2)] = program.maxUniformLength;
      } else if (pname == 0x8B8A /* GL_ACTIVE_ATTRIBUTE_MAX_LENGTH */) {
        if (!program.maxAttributeLength) {
          for (var i = 0; i < GLctx.getProgramParameter(program, 0x8B89/*GL_ACTIVE_ATTRIBUTES*/); ++i) {
            program.maxAttributeLength = Math.max(program.maxAttributeLength, GLctx.getActiveAttrib(program, i).name.length+1);
          }
        }
        HEAP32[((p)>>2)] = program.maxAttributeLength;
      } else if (pname == 0x8A35 /* GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH */) {
        if (!program.maxUniformBlockNameLength) {
          for (var i = 0; i < GLctx.getProgramParameter(program, 0x8A36/*GL_ACTIVE_UNIFORM_BLOCKS*/); ++i) {
            program.maxUniformBlockNameLength = Math.max(program.maxUniformBlockNameLength, GLctx.getActiveUniformBlockName(program, i).length+1);
          }
        }
        HEAP32[((p)>>2)] = program.maxUniformBlockNameLength;
      } else {
        HEAP32[((p)>>2)] = GLctx.getProgramParameter(program, pname);
      }
    }

  function _glGetQueryObjectuiv(id, pname, params) {
      if (!params) {
        // GLES2 specification does not specify how to behave if params is a null pointer. Since calling this function does not make sense
        // if p == null, issue a GL error to notify user about it.
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        return;
      }
      var query = GL.queries[id];
      var param = GLctx['getQueryParameter'](query, pname);
      var ret;
      if (typeof param == 'boolean') {
        ret = param ? 1 : 0;
      } else {
        ret = param;
      }
      HEAP32[((params)>>2)] = ret;
    }

  function _glGetQueryiv(target, pname, params) {
      if (!params) {
        // GLES2 specification does not specify how to behave if params is a null pointer. Since calling this function does not make sense
        // if p == null, issue a GL error to notify user about it.
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        return;
      }
      HEAP32[((params)>>2)] = GLctx['getQuery'](target, pname);
    }

  function _glGetRenderbufferParameteriv(target, pname, params) {
      if (!params) {
        // GLES2 specification does not specify how to behave if params is a null pointer. Since calling this function does not make sense
        // if params == null, issue a GL error to notify user about it.
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        return;
      }
      HEAP32[((params)>>2)] = GLctx.getRenderbufferParameter(target, pname);
    }

  function _glGetShaderInfoLog(shader, maxLength, length, infoLog) {
      var log = GLctx.getShaderInfoLog(GL.shaders[shader]);
      if (log === null) log = '(unknown error)';
      var numBytesWrittenExclNull = (maxLength > 0 && infoLog) ? stringToUTF8(log, infoLog, maxLength) : 0;
      if (length) HEAP32[((length)>>2)] = numBytesWrittenExclNull;
    }

  function _glGetShaderPrecisionFormat(shaderType, precisionType, range, precision) {
      var result = GLctx.getShaderPrecisionFormat(shaderType, precisionType);
      HEAP32[((range)>>2)] = result.rangeMin;
      HEAP32[(((range)+(4))>>2)] = result.rangeMax;
      HEAP32[((precision)>>2)] = result.precision;
    }

  function _glGetShaderSource(shader, bufSize, length, source) {
      var result = GLctx.getShaderSource(GL.shaders[shader]);
      if (!result) return; // If an error occurs, nothing will be written to length or source.
      var numBytesWrittenExclNull = (bufSize > 0 && source) ? stringToUTF8(result, source, bufSize) : 0;
      if (length) HEAP32[((length)>>2)] = numBytesWrittenExclNull;
    }

  function _glGetShaderiv(shader, pname, p) {
      if (!p) {
        // GLES2 specification does not specify how to behave if p is a null pointer. Since calling this function does not make sense
        // if p == null, issue a GL error to notify user about it.
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        return;
      }
      if (pname == 0x8B84) { // GL_INFO_LOG_LENGTH
        var log = GLctx.getShaderInfoLog(GL.shaders[shader]);
        if (log === null) log = '(unknown error)';
        // The GLES2 specification says that if the shader has an empty info log,
        // a value of 0 is returned. Otherwise the log has a null char appended.
        // (An empty string is falsey, so we can just check that instead of
        // looking at log.length.)
        var logLength = log ? log.length + 1 : 0;
        HEAP32[((p)>>2)] = logLength;
      } else if (pname == 0x8B88) { // GL_SHADER_SOURCE_LENGTH
        var source = GLctx.getShaderSource(GL.shaders[shader]);
        // source may be a null, or the empty string, both of which are falsey
        // values that we report a 0 length for.
        var sourceLength = source ? source.length + 1 : 0;
        HEAP32[((p)>>2)] = sourceLength;
      } else {
        HEAP32[((p)>>2)] = GLctx.getShaderParameter(GL.shaders[shader], pname);
      }
    }

  function _glGetString(name_) {
      var ret = GL.stringCache[name_];
      if (!ret) {
        switch (name_) {
          case 0x1F03 /* GL_EXTENSIONS */:
            var exts = GLctx.getSupportedExtensions() || []; // .getSupportedExtensions() can return null if context is lost, so coerce to empty array.
            exts = exts.concat(exts.map(function(e) { return "GL_" + e; }));
            ret = stringToNewUTF8(exts.join(' '));
            break;
          case 0x1F00 /* GL_VENDOR */:
          case 0x1F01 /* GL_RENDERER */:
          case 0x9245 /* UNMASKED_VENDOR_WEBGL */:
          case 0x9246 /* UNMASKED_RENDERER_WEBGL */:
            var s = GLctx.getParameter(name_);
            if (!s) {
              GL.recordError(0x500/*GL_INVALID_ENUM*/);
            }
            ret = s && stringToNewUTF8(s);
            break;
  
          case 0x1F02 /* GL_VERSION */:
            var glVersion = GLctx.getParameter(0x1F02 /*GL_VERSION*/);
            // return GLES version string corresponding to the version of the WebGL context
            if (GL.currentContext.version >= 2) glVersion = 'OpenGL ES 3.0 (' + glVersion + ')';
            else
            {
              glVersion = 'OpenGL ES 2.0 (' + glVersion + ')';
            }
            ret = stringToNewUTF8(glVersion);
            break;
          case 0x8B8C /* GL_SHADING_LANGUAGE_VERSION */:
            var glslVersion = GLctx.getParameter(0x8B8C /*GL_SHADING_LANGUAGE_VERSION*/);
            // extract the version number 'N.M' from the string 'WebGL GLSL ES N.M ...'
            var ver_re = /^WebGL GLSL ES ([0-9]\.[0-9][0-9]?)(?:$| .*)/;
            var ver_num = glslVersion.match(ver_re);
            if (ver_num !== null) {
              if (ver_num[1].length == 3) ver_num[1] = ver_num[1] + '0'; // ensure minor version has 2 digits
              glslVersion = 'OpenGL ES GLSL ES ' + ver_num[1] + ' (' + glslVersion + ')';
            }
            ret = stringToNewUTF8(glslVersion);
            break;
          default:
            GL.recordError(0x500/*GL_INVALID_ENUM*/);
            // fall through
        }
        GL.stringCache[name_] = ret;
      }
      return ret;
    }

  function _glGetStringi(name, index) {
      if (GL.currentContext.version < 2) {
        GL.recordError(0x502 /* GL_INVALID_OPERATION */); // Calling GLES3/WebGL2 function with a GLES2/WebGL1 context
        return 0;
      }
      var stringiCache = GL.stringiCache[name];
      if (stringiCache) {
        if (index < 0 || index >= stringiCache.length) {
          GL.recordError(0x501/*GL_INVALID_VALUE*/);
          return 0;
        }
        return stringiCache[index];
      }
      switch (name) {
        case 0x1F03 /* GL_EXTENSIONS */:
          var exts = GLctx.getSupportedExtensions() || []; // .getSupportedExtensions() can return null if context is lost, so coerce to empty array.
          exts = exts.concat(exts.map(function(e) { return "GL_" + e; }));
          exts = exts.map(function(e) { return stringToNewUTF8(e); });
  
          stringiCache = GL.stringiCache[name] = exts;
          if (index < 0 || index >= stringiCache.length) {
            GL.recordError(0x501/*GL_INVALID_VALUE*/);
            return 0;
          }
          return stringiCache[index];
        default:
          GL.recordError(0x500/*GL_INVALID_ENUM*/);
          return 0;
      }
    }

  function _glGetTexParameteriv(target, pname, params) {
      if (!params) {
        // GLES2 specification does not specify how to behave if params is a null pointer. Since calling this function does not make sense
        // if p == null, issue a GL error to notify user about it.
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        return;
      }
      HEAP32[((params)>>2)] = GLctx.getTexParameter(target, pname);
    }

  function _glGetUniformBlockIndex(program, uniformBlockName) {
      return GLctx['getUniformBlockIndex'](GL.programs[program], UTF8ToString(uniformBlockName));
    }

  function _glGetUniformIndices(program, uniformCount, uniformNames, uniformIndices) {
      if (!uniformIndices) {
        // GLES2 specification does not specify how to behave if uniformIndices is a null pointer. Since calling this function does not make sense
        // if uniformIndices == null, issue a GL error to notify user about it.
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        return;
      }
      if (uniformCount > 0 && (uniformNames == 0 || uniformIndices == 0)) {
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        return;
      }
      program = GL.programs[program];
      var names = [];
      for (var i = 0; i < uniformCount; i++)
        names.push(UTF8ToString(HEAP32[(((uniformNames)+(i*4))>>2)]));
  
      var result = GLctx['getUniformIndices'](program, names);
      if (!result) return; // GL spec: If an error is generated, nothing is written out to uniformIndices.
  
      var len = result.length;
      for (var i = 0; i < len; i++) {
        HEAP32[(((uniformIndices)+(i*4))>>2)] = result[i];
      }
    }

  /** @noinline */
  function webglGetLeftBracePos(name) {
      return name.slice(-1) == ']' && name.lastIndexOf('[');
    }
  function webglPrepareUniformLocationsBeforeFirstUse(program) {
      var uniformLocsById = program.uniformLocsById, // Maps GLuint -> WebGLUniformLocation
        uniformSizeAndIdsByName = program.uniformSizeAndIdsByName, // Maps name -> [uniform array length, GLuint]
        i, j;
  
      // On the first time invocation of glGetUniformLocation on this shader program:
      // initialize cache data structures and discover which uniforms are arrays.
      if (!uniformLocsById) {
        // maps GLint integer locations to WebGLUniformLocations
        program.uniformLocsById = uniformLocsById = {};
        // maps integer locations back to uniform name strings, so that we can lazily fetch uniform array locations
        program.uniformArrayNamesById = {};
  
        for (i = 0; i < GLctx.getProgramParameter(program, 0x8B86/*GL_ACTIVE_UNIFORMS*/); ++i) {
          var u = GLctx.getActiveUniform(program, i);
          var nm = u.name;
          var sz = u.size;
          var lb = webglGetLeftBracePos(nm);
          var arrayName = lb > 0 ? nm.slice(0, lb) : nm;
  
          // Acquire the preset location from the explicit uniform location if one was specified, or
          // programmatically assign a new one if not.
          var id = uniformSizeAndIdsByName[arrayName] ? uniformSizeAndIdsByName[arrayName][1] : program.uniformIdCounter;
          program.uniformIdCounter = Math.max(id + sz, program.uniformIdCounter);
          // Eagerly get the location of the uniformArray[0] base element.
          // The remaining indices >0 will be left for lazy evaluation to
          // improve performance. Those may never be needed to fetch, if the
          // application fills arrays always in full starting from the first
          // element of the array.
          uniformSizeAndIdsByName[arrayName] = [sz, id];
  
          // Store placeholder integers in place that highlight that these
          // >0 index locations are array indices pending population.
          for(j = 0; j < sz; ++j) {
            uniformLocsById[id] = j;
            program.uniformArrayNamesById[id++] = arrayName;
          }
        }
      }
    }
  function _glGetUniformLocation(program, name) {
  
      name = UTF8ToString(name);
  
      if (program = GL.programs[program]) {
        webglPrepareUniformLocationsBeforeFirstUse(program);
        var uniformLocsById = program.uniformLocsById; // Maps GLuint -> WebGLUniformLocation
        var arrayIndex = 0;
        var uniformBaseName = name;
  
        // Invariant: when populating integer IDs for uniform locations, we must maintain the precondition that
        // arrays reside in contiguous addresses, i.e. for a 'vec4 colors[10];', colors[4] must be at location colors[0]+4.
        // However, user might call glGetUniformLocation(program, "colors") for an array, so we cannot discover based on the user
        // input arguments whether the uniform we are dealing with is an array. The only way to discover which uniforms are arrays
        // is to enumerate over all the active uniforms in the program.
        var leftBrace = webglGetLeftBracePos(name);
  
        // If user passed an array accessor "[index]", parse the array index off the accessor.
        if (leftBrace > 0) {
          arrayIndex = jstoi_q(name.slice(leftBrace + 1)) >>> 0; // "index]", coerce parseInt(']') with >>>0 to treat "foo[]" as "foo[0]" and foo[-1] as unsigned out-of-bounds.
          uniformBaseName = name.slice(0, leftBrace);
        }
  
        // Have we cached the location of this uniform before?
        var sizeAndId = program.uniformSizeAndIdsByName[uniformBaseName]; // A pair [array length, GLint of the uniform location]
  
        // If an uniform with this name exists, and if its index is within the array limits (if it's even an array),
        // query the WebGLlocation, or return an existing cached location.
        if (sizeAndId && arrayIndex < sizeAndId[0]) {
          arrayIndex += sizeAndId[1]; // Add the base location of the uniform to the array index offset.
          if ((uniformLocsById[arrayIndex] = uniformLocsById[arrayIndex] || GLctx.getUniformLocation(program, name))) {
            return arrayIndex;
          }
        }
      }
      else {
        // N.b. we are currently unable to distinguish between GL program IDs that never existed vs GL program IDs that have been deleted,
        // so report GL_INVALID_VALUE in both cases.
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
      }
      return -1;
    }

  function webglGetUniformLocation(location) {
      var p = GLctx.currentProgram;
  
      if (p) {
        var webglLoc = p.uniformLocsById[location];
        // p.uniformLocsById[location] stores either an integer, or a WebGLUniformLocation.
  
        // If an integer, we have not yet bound the location, so do it now. The integer value specifies the array index
        // we should bind to.
        if (typeof webglLoc == 'number') {
          p.uniformLocsById[location] = webglLoc = GLctx.getUniformLocation(p, p.uniformArrayNamesById[location] + (webglLoc > 0 ? '[' + webglLoc + ']' : ''));
        }
        // Else an already cached WebGLUniformLocation, return it.
        return webglLoc;
      } else {
        GL.recordError(0x502/*GL_INVALID_OPERATION*/);
      }
    }
  /** @suppress{checkTypes} */
  function emscriptenWebGLGetUniform(program, location, params, type) {
      if (!params) {
        // GLES2 specification does not specify how to behave if params is a null pointer. Since calling this function does not make sense
        // if params == null, issue a GL error to notify user about it.
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        return;
      }
      program = GL.programs[program];
      webglPrepareUniformLocationsBeforeFirstUse(program);
      var data = GLctx.getUniform(program, webglGetUniformLocation(location));
      if (typeof data == 'number' || typeof data == 'boolean') {
        switch (type) {
          case 0: HEAP32[((params)>>2)] = data; break;
          case 2: HEAPF32[((params)>>2)] = data; break;
        }
      } else {
        for (var i = 0; i < data.length; i++) {
          switch (type) {
            case 0: HEAP32[(((params)+(i*4))>>2)] = data[i]; break;
            case 2: HEAPF32[(((params)+(i*4))>>2)] = data[i]; break;
          }
        }
      }
    }
  function _glGetUniformiv(program, location, params) {
      emscriptenWebGLGetUniform(program, location, params, 0);
    }

  /** @suppress{checkTypes} */
  function emscriptenWebGLGetVertexAttrib(index, pname, params, type) {
      if (!params) {
        // GLES2 specification does not specify how to behave if params is a null pointer. Since calling this function does not make sense
        // if params == null, issue a GL error to notify user about it.
        GL.recordError(0x501 /* GL_INVALID_VALUE */);
        return;
      }
      if (GL.currentContext.clientBuffers[index].enabled) {
        err("glGetVertexAttrib*v on client-side array: not supported, bad data returned");
      }
      var data = GLctx.getVertexAttrib(index, pname);
      if (pname == 0x889F/*VERTEX_ATTRIB_ARRAY_BUFFER_BINDING*/) {
        HEAP32[((params)>>2)] = data && data["name"];
      } else if (typeof data == 'number' || typeof data == 'boolean') {
        switch (type) {
          case 0: HEAP32[((params)>>2)] = data; break;
          case 2: HEAPF32[((params)>>2)] = data; break;
          case 5: HEAP32[((params)>>2)] = Math.fround(data); break;
        }
      } else {
        for (var i = 0; i < data.length; i++) {
          switch (type) {
            case 0: HEAP32[(((params)+(i*4))>>2)] = data[i]; break;
            case 2: HEAPF32[(((params)+(i*4))>>2)] = data[i]; break;
            case 5: HEAP32[(((params)+(i*4))>>2)] = Math.fround(data[i]); break;
          }
        }
      }
    }
  function _glGetVertexAttribiv(index, pname, params) {
      // N.B. This function may only be called if the vertex attribute was specified using the function glVertexAttrib*f(),
      // otherwise the results are undefined. (GLES3 spec 6.1.12)
      emscriptenWebGLGetVertexAttrib(index, pname, params, 5);
    }

  function _glInvalidateFramebuffer(target, numAttachments, attachments) {
      var list = tempFixedLengthArray[numAttachments];
      for (var i = 0; i < numAttachments; i++) {
        list[i] = HEAP32[(((attachments)+(i*4))>>2)];
      }
  
      GLctx['invalidateFramebuffer'](target, list);
    }

  function _glIsEnabled(x0) { return GLctx['isEnabled'](x0) }

  function _glIsVertexArray(array) {
  
      var vao = GL.vaos[array];
      if (!vao) return 0;
      return GLctx['isVertexArray'](vao);
    }

  function _glLinkProgram(program) {
      program = GL.programs[program];
      GLctx.linkProgram(program);
      // Invalidate earlier computed uniform->ID mappings, those have now become stale
      program.uniformLocsById = 0; // Mark as null-like so that glGetUniformLocation() knows to populate this again.
      program.uniformSizeAndIdsByName = {};
  
      // Collect explicit uniform locations from the vertex and fragment shaders.
      [program['vs'], program['fs']].forEach(function(s) {
        Object.keys(s.explicitUniformLocations).forEach(function(shaderLocation) {
          var loc = s.explicitUniformLocations[shaderLocation];
          // Record each explicit uniform location temporarily as a non-array uniform
          // with size=1. This is not true, but on the first glGetUniformLocation() call
          // the array sizes will get populated to correct sizes.
          program.uniformSizeAndIdsByName[shaderLocation] = [1, loc];
  
          // Make sure we will never automatically assign locations within the range
          // used for explicit layout(location=x) variables.
          program.uniformIdCounter = Math.max(program.uniformIdCounter, loc + 1);
        });
      });
  
      function copyKeys(dst, src) {
        Object.keys(src).forEach(function(key) {
          dst[key] = src[key];
        });
      }
      // Collect sampler and ubo binding locations from the vertex and fragment shaders.
      program.explicitUniformBindings = {};
      program.explicitSamplerBindings = {};
      [program['vs'], program['fs']].forEach(function(s) {
        copyKeys(program.explicitUniformBindings, s.explicitUniformBindings);
        copyKeys(program.explicitSamplerBindings, s.explicitSamplerBindings);
      });
      // Record that we need to apply these explicit bindings when glUseProgram() is
      // first called on this program.
      program.explicitProgramBindingsApplied = 0;
    }

  function _glMapBufferRange(target, offset, length, access) {
      if (access != 0x1A && access != 0xA) {
        err("glMapBufferRange is only supported when access is MAP_WRITE|INVALIDATE_BUFFER");
        return 0;
      }
  
      if (!emscriptenWebGLValidateMapBufferTarget(target)) {
        GL.recordError(0x500/*GL_INVALID_ENUM*/);
        err('GL_INVALID_ENUM in glMapBufferRange');
        return 0;
      }
  
      var mem = _malloc(length);
      if (!mem) return 0;
  
      GL.mappedBuffers[emscriptenWebGLGetBufferBinding(target)] = {
        offset: offset,
        length: length,
        mem: mem,
        access: access,
      };
      return mem;
    }

  function _glPixelStorei(pname, param) {
      if (pname == 0xCF5 /* GL_UNPACK_ALIGNMENT */) {
        GL.unpackAlignment = param;
      }
      GLctx.pixelStorei(pname, param);
    }

  function _glPolygonOffset(x0, x1) { GLctx['polygonOffset'](x0, x1) }

  function _glProgramBinary(program, binaryFormat, binary, length) {
      GL.recordError(0x500/*GL_INVALID_ENUM*/);
    }

  function _glProgramParameteri(program, pname, value) {
      GL.recordError(0x500/*GL_INVALID_ENUM*/);
    }

  function _glReadBuffer(x0) { GLctx['readBuffer'](x0) }

  function computeUnpackAlignedImageSize(width, height, sizePerPixel, alignment) {
      function roundedToNextMultipleOf(x, y) {
        return (x + y - 1) & -y;
      }
      var plainRowSize = width * sizePerPixel;
      var alignedRowSize = roundedToNextMultipleOf(plainRowSize, alignment);
      return height * alignedRowSize;
    }
  
  function __colorChannelsInGlTextureFormat(format) {
      // Micro-optimizations for size: map format to size by subtracting smallest enum value (0x1902) from all values first.
      // Also omit the most common size value (1) from the list, which is assumed by formats not on the list.
      var colorChannels = {
        // 0x1902 /* GL_DEPTH_COMPONENT */ - 0x1902: 1,
        // 0x1906 /* GL_ALPHA */ - 0x1902: 1,
        5: 3,
        6: 4,
        // 0x1909 /* GL_LUMINANCE */ - 0x1902: 1,
        8: 2,
        29502: 3,
        29504: 4,
        // 0x1903 /* GL_RED */ - 0x1902: 1,
        26917: 2,
        26918: 2,
        // 0x8D94 /* GL_RED_INTEGER */ - 0x1902: 1,
        29846: 3,
        29847: 4
      };
      return colorChannels[format - 0x1902]||1;
    }
  
  function heapObjectForWebGLType(type) {
      // Micro-optimization for size: Subtract lowest GL enum number (0x1400/* GL_BYTE */) from type to compare
      // smaller values for the heap, for shorter generated code size.
      // Also the type HEAPU16 is not tested for explicitly, but any unrecognized type will return out HEAPU16.
      // (since most types are HEAPU16)
      type -= 0x1400;
      if (type == 0) return HEAP8;
  
      if (type == 1) return HEAPU8;
  
      if (type == 2) return HEAP16;
  
      if (type == 4) return HEAP32;
  
      if (type == 6) return HEAPF32;
  
      if (type == 5
        || type == 28922
        || type == 28520
        || type == 30779
        || type == 30782
        )
        return HEAPU32;
  
      return HEAPU16;
    }
  
  function heapAccessShiftForWebGLHeap(heap) {
      return 31 - Math.clz32(heap.BYTES_PER_ELEMENT);
    }
  function emscriptenWebGLGetTexPixelData(type, format, width, height, pixels, internalFormat) {
      var heap = heapObjectForWebGLType(type);
      var shift = heapAccessShiftForWebGLHeap(heap);
      var byteSize = 1<<shift;
      var sizePerPixel = __colorChannelsInGlTextureFormat(format) * byteSize;
      var bytes = computeUnpackAlignedImageSize(width, height, sizePerPixel, GL.unpackAlignment);
      return heap.subarray(pixels >> shift, pixels + bytes >> shift);
    }
  function _glReadPixels(x, y, width, height, format, type, pixels) {
      if (GL.currentContext.version >= 2) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
        if (GLctx.currentPixelPackBufferBinding) {
          GLctx.readPixels(x, y, width, height, format, type, pixels);
        } else {
          var heap = heapObjectForWebGLType(type);
          GLctx.readPixels(x, y, width, height, format, type, heap, pixels >> heapAccessShiftForWebGLHeap(heap));
        }
        return;
      }
      var pixelData = emscriptenWebGLGetTexPixelData(type, format, width, height, pixels, format);
      if (!pixelData) {
        GL.recordError(0x500/*GL_INVALID_ENUM*/);
        return;
      }
      GLctx.readPixels(x, y, width, height, format, type, pixelData);
    }

  function _glRenderbufferStorage(x0, x1, x2, x3) { GLctx['renderbufferStorage'](x0, x1, x2, x3) }

  function _glRenderbufferStorageMultisample(x0, x1, x2, x3, x4) { GLctx['renderbufferStorageMultisample'](x0, x1, x2, x3, x4) }

  function _glSamplerParameteri(sampler, pname, param) {
      GLctx['samplerParameteri'](GL.samplers[sampler], pname, param);
    }

  function _glScissor(x0, x1, x2, x3) { GLctx['scissor'](x0, x1, x2, x3) }

  function find_closing_parens_index(arr, i, opening='(', closing=')') {
      for(var nesting = 0; i < arr.length; ++i) {
        if (arr[i] == opening) ++nesting;
        if (arr[i] == closing && --nesting == 0) {
          return i;
        }
      }
    }
  function preprocess_c_code(code, defs = {}) {
      var i = 0, // iterator over the input string
        len = code.length, // cache input length
        out = '', // generates the preprocessed output string
        stack = [1]; // preprocessing stack (state of active/inactive #ifdef/#else blocks we are currently inside)
      // a mapping 'symbolname' -> function(args) which evaluates the given cpp macro, e.g. #define FOO(x) x+10.
      defs['defined'] = (args) => { // built-in "#if defined(x)"" macro.
        assert(args.length == 1);
        return defs[args[0]] ? 1 : 0;
      };
  
      // Returns true if str[i] is whitespace.
      function isWhitespace(str, i) {
        return !(str.charCodeAt(i) > 32); // Compare as negation to treat end-of-string undefined as whitespace
      }
  
      // Returns index to the next whitespace character starting at str[i].
      function nextWhitespace(str, i) {
        while(!isWhitespace(str, i)) ++i;
        return i;
      }
  
      // Returns an integer ID classification of the character at str[idx], used for tokenization purposes.
      function classifyChar(str, idx) {
        var cc = str.charCodeAt(idx);
        assert(!(cc > 127), "Only 7-bit ASCII can be used in preprocessor #if/#ifdef/#define statements!");
        if (cc > 32) {
          if (cc < 48) return 1; // an operator symbol, any of !"#$%&'()*+,-./
          if (cc < 58) return 2; // a number 0123456789
          if (cc < 65) return 1; // an operator symbol, any of :;<=>?@
          if (cc < 91 || cc == 95/*_*/) return 3; // a character, any of A-Z or _
          if (cc < 97) return 1; // an operator symbol, any of [\]^`
          if (cc < 123) return 3; // a character, any of a-z
          return 1; // an operator symbol, any of {|}~
        }
        return cc < 33 ? 0 : 4; // 0=whitespace, 4=end-of-string
      }
  
      // Returns a tokenized array of the given string expression, i.e. "FOO > BAR && BAZ" -> ["FOO", ">", "BAR", "&&", "BAZ"]
      // Optionally keeps whitespace as tokens to be able to reconstruct the original input string.
      function tokenize(exprString, keepWhitespace) {
        var out = [], len = exprString.length;
        for(var i = 0; i <= len; ++i) {
          var kind = classifyChar(exprString, i);
          if (kind == 2/*0-9*/ || kind == 3/*a-z*/) { // a character or a number
            for(var j = i+1; j <= len; ++j) {
              var kind2 = classifyChar(exprString, j);
              if (kind2 != kind && (kind2 != 2/*0-9*/ || kind != 3/*a-z*/)) { // parse number sequence "423410", and identifier sequence "FOO32BAR"
                out.push(exprString.substring(i, j));
                i = j-1;
                break;
              }
            }
          } else if (kind == 1/*operator symbol*/) {
            // Lookahead for two-character operators.
            var op2 = exprString.substr(i, 2);
            if (['<=', '>=', '==', '!=', '&&', '||'].includes(op2)) {
              out.push(op2);
              ++i;
            } else {
              out.push(exprString[i]);
            }
          }
        }
        return out;
      }
  
      // Expands preprocessing macros on substring str[lineStart...lineEnd]
      function expandMacros(str, lineStart, lineEnd) {
        if (lineEnd === undefined) lineEnd = str.length;
        var len = str.length;
        var out = '';
        for(var i = lineStart; i < lineEnd; ++i) {
          var kind = classifyChar(str, i);
          if (kind == 3/*a-z*/) {
            for(var j = i + 1; j <= lineEnd; ++j) {
              var kind2 = classifyChar(str, j);
              if (kind2 != 2/*0-9*/ && kind2 != 3/*a-z*/) {
                var symbol = str.substring(i, j);
                var pp = defs[symbol];
                if (pp) {
                  var expanded = str.substring(lineStart, i);
                  if (pp.length && str[j] == '(') { // Expanding a macro? (#define FOO(X) ...)
                    var closeParens = find_closing_parens_index(str, j);
                    assert(str[closeParens] == ')');
                    expanded += pp(str.substring(j+1, closeParens).split(',')) + str.substring(closeParens+1, lineEnd);
                  } else { // Expanding a non-macro (#define FOO BAR)
                    expanded += pp() + str.substring(j, lineEnd);
                  }
                  return expandMacros(expanded, 0);
                } else {
                  out += symbol;
                  i = j-1;
                  break;
                }
              }
            }
          } else {
            out += str[i];
          }
        }
        return out;
      }
  
      // Given a token list e.g. ['2', '>', '1'], returns a function that evaluates that token list.
      function buildExprTree(tokens) {
        // Consume tokens array into a function tree until the tokens array is exhausted
        // to a single root node that evaluates it.
        while (tokens.length > 1 || typeof tokens[0] != 'function') {
          tokens = (function(tokens) {
            // Find the index 'i' of the operator we should evaluate next:
            var i, j, p, operatorAndPriority = -2;
            for(j = 0; j < tokens.length; ++j) {
              if ((p = ['*', '/', '+', '-', '!', '<', '<=', '>', '>=', '==', '!=', '&&', '||', '('].indexOf(tokens[j])) > operatorAndPriority) {
                i = j;
                operatorAndPriority = p;
              }
            }
  
            if (operatorAndPriority == 13 /* parens '(' */) {
              // Find the closing parens position
              var j = find_closing_parens_index(tokens, i);
              if (j) {
                tokens.splice(i, j+1-i, buildExprTree(tokens.slice(i+1, j)));
                return tokens;
              }
            }
  
            if (operatorAndPriority == 4 /* unary ! */) {
              // Special case: the unary operator ! needs to evaluate right-to-left.
              i = tokens.lastIndexOf('!');
              var innerExpr = buildExprTree(tokens.slice(i+1, i+2));
              tokens.splice(i, 2, function() { return !innerExpr(); })
              return tokens;
            }
  
            // A binary operator:
            if (operatorAndPriority >= 0) {
              var left = buildExprTree(tokens.slice(0, i));
              var right = buildExprTree(tokens.slice(i+1));
              switch(tokens[i]) {
                case '&&': return [function() { return left() && right(); }];
                case '||': return [function() { return left() || right(); }];
                case '==': return [function() { return left() == right(); }];
                case '!=': return [function() { return left() != right(); }];
                case '<' : return [function() { return left() <  right(); }];
                case '<=': return [function() { return left() <= right(); }];
                case '>' : return [function() { return left() >  right(); }];
                case '>=': return [function() { return left() >= right(); }];
                case  '+': return [function() { return left()  + right(); }];
                case  '-': return [function() { return left()  - right(); }];
                case  '*': return [function() { return left()  * right(); }];
                case  '/': return [function() { return Math.floor(left() / right()); }];
              }
            }
            // else a number:
            if (tokens[i] == ')') throw 'Parsing failure, mismatched parentheses in parsing!' + tokens.toString();
            assert(operatorAndPriority == -1);
            var num = jstoi_q(tokens[i]);
            return [function() { return num; }]
          })(tokens);
        }
        return tokens[0];
      }
  
      // Preprocess the input one line at a time.
      for(; i < len; ++i) {
        // Find the start of the current line.
        var lineStart = i;
  
        // Seek iterator to end of current line.
        i = code.indexOf('\n', i);
        if (i < 0) i = len;
  
        // Find the first non-whitespace character on the line.
        for(var j = lineStart; j < i && isWhitespace(code, j); ++j);
  
        // Is this a non-preprocessor directive line?
        var thisLineIsInActivePreprocessingBlock = stack[stack.length-1];
        if (code[j] != '#') { // non-preprocessor line?
          if (thisLineIsInActivePreprocessingBlock) {
            out += expandMacros(code, lineStart, i) + '\n';
          }
          continue;
        }
        // This is a preprocessor directive line, e.g. #ifdef or #define.
  
        // Parse the line as #<directive> <expression>
        var space = nextWhitespace(code, j);
        var directive = code.substring(j+1, space);
        var expression = code.substring(space, i).trim();
        switch(directive) {
        case 'if':
          var tokens = tokenize(expandMacros(expression, 0));
          var exprTree = buildExprTree(tokens);
          var evaluated = exprTree();
          stack.push(!!evaluated * stack[stack.length-1]);
          break;
        case 'ifdef': stack.push(!!defs[expression] * stack[stack.length-1]); break;
        case 'ifndef': stack.push(!defs[expression] * stack[stack.length-1]); break;
        case 'else': stack[stack.length-1] = 1-stack[stack.length-1]; break;
        case 'endif': stack.pop(); break;
        case 'define':
          if (thisLineIsInActivePreprocessingBlock) {
            // This could either be a macro with input args (#define MACRO(x,y) x+y), or a direct expansion #define FOO 2,
            // figure out which.
            var macroStart = expression.indexOf('(');
            var firstWs = nextWhitespace(expression, 0);
            if (firstWs < macroStart) macroStart = 0;
            if (macroStart > 0) { // #define MACRO( x , y , z ) <statement of x,y and z>
              var macroEnd = expression.indexOf(')', macroStart);
              let params = expression.substring(macroStart+1, macroEnd).split(',').map(x => x.trim());
              let value = tokenize(expression.substring(macroEnd+1).trim())
              defs[expression.substring(0, macroStart)] = (args) => {
                var ret = '';
                value.forEach((x) => {
                  var argIndex = params.indexOf(x);
                  ret += (argIndex >= 0) ? args[argIndex] : x;
                });
                return ret;
              };
            } else { // #define FOO (x + y + z)
              let value = expandMacros(expression.substring(firstWs+1).trim(), 0);
              defs[expression.substring(0, firstWs)] = () => value;
            }
          }
          break;
        case 'undef': if (thisLineIsInActivePreprocessingBlock) delete defs[expression]; break;
        default:
          if (directive != 'version' && directive != 'pragma' && directive != 'extension') { // GLSL shader compiler specific #directives.
            err('Unrecognized preprocessor directive #' + directive + '!');
          }
  
          // Unknown preprocessor macro, just pass through the line to output.
          out += expandMacros(code, lineStart, i) + '\n';
        }
      }
      return out;
    }
  
  function remove_cpp_comments_in_shaders(code) {
      var i = 0, out = '', ch, next, len = code.length;
      for(; i < len; ++i) {
        ch = code[i];
        if (ch == '/') {
          next = code[i+1];
          if (next == '/') {
            while(i < len && code[i+1] != '\n') ++i;
          } else if (next == '*') {
            while(i < len && (code[i-1] != '*' || code[i] != '/')) ++i;
          } else {
            out += ch;
          }
        } else {
          out += ch;
        }
      }
      return out;
    }
  function _glShaderSource(shader, count, string, length) {
      var source = GL.getSource(shader, count, string, length);
  
      // These are not expected to be meaningful in WebGL, but issue a warning if they are present, to give some diagnostics about if they are present.
      if (source.includes('__FILE__')) warnOnce('When compiling shader: ' + source + ': Preprocessor variable __FILE__ is not handled by -sGL_EXPLICIT_UNIFORM_LOCATION/-sGL_EXPLICIT_UNIFORM_BINDING options!');
      if (source.includes('__LINE__')) warnOnce('When compiling shader: ' + source + ': Preprocessor variable __LINE__ is not handled by -sGL_EXPLICIT_UNIFORM_LOCATION/-sGL_EXPLICIT_UNIFORM_BINDING options!');
      // Remove comments and C-preprocess the input shader first, so that we can appropriately
      // parse the layout location directives.
      source = preprocess_c_code(remove_cpp_comments_in_shaders(source), {
        'GL_FRAGMENT_PRECISION_HIGH': () => 1,
        'GL_ES': () => 1,
        '__VERSION__': () => source.includes('#version 300') ? 300 : 100
      });
  
      // Extract the layout(location = x) directives.
      var regex = /layout\s*\(\s*location\s*=\s*(-?\d+)\s*\)\s*(uniform\s+((lowp|mediump|highp)\s+)?\w+\s+(\w+))/g, explicitUniformLocations = {}, match;
      while(match = regex.exec(source)) {
        explicitUniformLocations[match[5]] = jstoi_q(match[1]);
        if (!(explicitUniformLocations[match[5]] >= 0 && explicitUniformLocations[match[5]] < 1048576)) {
          err('Specified an out of range layout(location=x) directive "' + explicitUniformLocations[match[5]] + '"! (' + match[0] + ')');
          GL.recordError(0x501 /* GL_INVALID_VALUE */);
          return;
        }
      }
  
      // Remove all the layout(location = x) directives so that they do not make
      // their way to the actual WebGL shader compiler.
      source = source.replace(regex, '$2');
  
      // Remember all the directives to be handled after glLinkProgram is called.
      GL.shaders[shader].explicitUniformLocations = explicitUniformLocations;
  
      // Extract the layout(binding = x) directives. Four types we need to handle:
      // layout(binding = 3) uniform sampler2D mainTexture;
      // layout(binding = 1, std140) uniform MainBlock { ... };
      // layout(std140, binding = 1) uniform MainBlock { ... };
      // layout(binding = 1) uniform MainBlock { ... };
      var bindingRegex = /layout\s*\(.*?binding\s*=\s*(-?\d+).*?\)\s*uniform\s+(\w+)\s+(\w+)?/g, samplerBindings = {}, uniformBindings = {}, bindingMatch;
      while(bindingMatch = bindingRegex.exec(source)) {
        // We have a layout(binding=x) enabled uniform. Parse the array length of that uniform, if it is an array, i.e. a
        //    layout(binding = 3) uniform sampler2D mainTexture[arrayLength];
        // or 
        //    layout(binding = 1, std140) uniform MainBlock { ... } name[arrayLength];
        var arrayLength = 1;
        for(var i = bindingMatch.index; i < source.length && source[i] != ';'; ++i) {
          if (source[i] == '[') {
            arrayLength = jstoi_q(source.slice(i+1));
            break;
          }
          if (source[i] == '{') i = find_closing_parens_index(source, i, '{', '}') - 1;
        }
        var binding = jstoi_q(bindingMatch[1]);
        var bindingsType = 0x8872/*GL_MAX_TEXTURE_IMAGE_UNITS*/;
        if (bindingMatch[3] && bindingMatch[2].indexOf('sampler') != -1) {
          samplerBindings[bindingMatch[3]] = [binding, arrayLength];
        } else {
          bindingsType = 0x8A2E/*GL_MAX_COMBINED_UNIFORM_BLOCKS*/;
          uniformBindings[bindingMatch[2]] = [binding, arrayLength];
        }
        var numBindingPoints = GLctx.getParameter(bindingsType);
        if (!(binding >= 0 && binding + arrayLength <= numBindingPoints)) {
          err('Specified an out of range layout(binding=x) directive "' + binding + '"! (' + bindingMatch[0] + '). Valid range is [0, ' + numBindingPoints + '-1]');
          GL.recordError(0x501 /* GL_INVALID_VALUE */);
          return;
        }
      }
  
      // Remove all the layout(binding = x) directives so that they do not make
      // their way to the actual WebGL shader compiler. These regexes get quite hairy, check against
      // https://regex101.com/ when working on these.
      source = source.replace(/layout\s*\(.*?binding\s*=\s*([-\d]+).*?\)/g, ''); // "layout(binding = 3)" -> ""
      source = source.replace(/(layout\s*\((.*?)),\s*binding\s*=\s*([-\d]+)\)/g, '$1)'); // "layout(std140, binding = 1)" -> "layout(std140)"
      source = source.replace(/layout\s*\(\s*binding\s*=\s*([-\d]+)\s*,(.*?)\)/g, 'layout($2)'); // "layout(binding = 1, std140)" -> "layout(std140)"
  
      // Remember all the directives to be handled after glLinkProgram is called.
      GL.shaders[shader].explicitSamplerBindings = samplerBindings;
      GL.shaders[shader].explicitUniformBindings = uniformBindings;
  
      GLctx.shaderSource(GL.shaders[shader], source);
    }

  function _glStencilFuncSeparate(x0, x1, x2, x3) { GLctx['stencilFuncSeparate'](x0, x1, x2, x3) }

  function _glStencilMask(x0) { GLctx['stencilMask'](x0) }

  function _glStencilOpSeparate(x0, x1, x2, x3) { GLctx['stencilOpSeparate'](x0, x1, x2, x3) }

  function _glTexImage2D(target, level, internalFormat, width, height, border, format, type, pixels) {
      if (GL.currentContext.version >= 2) {
        // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
        if (GLctx.currentPixelUnpackBufferBinding) {
          GLctx.texImage2D(target, level, internalFormat, width, height, border, format, type, pixels);
        } else if (pixels) {
          var heap = heapObjectForWebGLType(type);
          GLctx.texImage2D(target, level, internalFormat, width, height, border, format, type, heap, pixels >> heapAccessShiftForWebGLHeap(heap));
        } else {
          GLctx.texImage2D(target, level, internalFormat, width, height, border, format, type, null);
        }
        return;
      }
      GLctx.texImage2D(target, level, internalFormat, width, height, border, format, type, pixels ? emscriptenWebGLGetTexPixelData(type, format, width, height, pixels, internalFormat) : null);
    }

  function _glTexImage3D(target, level, internalFormat, width, height, depth, border, format, type, pixels) {
      if (GLctx.currentPixelUnpackBufferBinding) {
        GLctx['texImage3D'](target, level, internalFormat, width, height, depth, border, format, type, pixels);
      } else if (pixels) {
        var heap = heapObjectForWebGLType(type);
        GLctx['texImage3D'](target, level, internalFormat, width, height, depth, border, format, type, heap, pixels >> heapAccessShiftForWebGLHeap(heap));
      } else {
        GLctx['texImage3D'](target, level, internalFormat, width, height, depth, border, format, type, null);
      }
    }

  function _glTexParameterf(x0, x1, x2) { GLctx['texParameterf'](x0, x1, x2) }

  function _glTexParameteri(x0, x1, x2) { GLctx['texParameteri'](x0, x1, x2) }

  function _glTexParameteriv(target, pname, params) {
      var param = HEAP32[((params)>>2)];
      GLctx.texParameteri(target, pname, param);
    }

  function _glTexStorage2D(x0, x1, x2, x3, x4) { GLctx['texStorage2D'](x0, x1, x2, x3, x4) }

  function _glTexStorage3D(x0, x1, x2, x3, x4, x5) { GLctx['texStorage3D'](x0, x1, x2, x3, x4, x5) }

  function _glTexSubImage2D(target, level, xoffset, yoffset, width, height, format, type, pixels) {
      if (GL.currentContext.version >= 2) {
        // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
        if (GLctx.currentPixelUnpackBufferBinding) {
          GLctx.texSubImage2D(target, level, xoffset, yoffset, width, height, format, type, pixels);
        } else if (pixels) {
          var heap = heapObjectForWebGLType(type);
          GLctx.texSubImage2D(target, level, xoffset, yoffset, width, height, format, type, heap, pixels >> heapAccessShiftForWebGLHeap(heap));
        } else {
          GLctx.texSubImage2D(target, level, xoffset, yoffset, width, height, format, type, null);
        }
        return;
      }
      var pixelData = null;
      if (pixels) pixelData = emscriptenWebGLGetTexPixelData(type, format, width, height, pixels, 0);
      GLctx.texSubImage2D(target, level, xoffset, yoffset, width, height, format, type, pixelData);
    }

  function _glTexSubImage3D(target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, pixels) {
      if (GLctx.currentPixelUnpackBufferBinding) {
        GLctx['texSubImage3D'](target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, pixels);
      } else if (pixels) {
        var heap = heapObjectForWebGLType(type);
        GLctx['texSubImage3D'](target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, heap, pixels >> heapAccessShiftForWebGLHeap(heap));
      } else {
        GLctx['texSubImage3D'](target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, null);
      }
    }

  var miniTempWebGLFloatBuffers = [];
  function _glUniform1fv(location, count, value) {
  
      if (GL.currentContext.version >= 2) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
        GLctx.uniform1fv(webglGetUniformLocation(location), HEAPF32, value>>2, count);
        return;
      }
  
      if (count <= 288) {
        // avoid allocation when uploading few enough uniforms
        var view = miniTempWebGLFloatBuffers[count-1];
        for (var i = 0; i < count; ++i) {
          view[i] = HEAPF32[(((value)+(4*i))>>2)];
        }
      } else
      {
        var view = HEAPF32.subarray((value)>>2, (value+count*4)>>2);
      }
      GLctx.uniform1fv(webglGetUniformLocation(location), view);
    }

  function _glUniform1i(location, v0) {
      GLctx.uniform1i(webglGetUniformLocation(location), v0);
    }

  var __miniTempWebGLIntBuffers = [];
  function _glUniform1iv(location, count, value) {
  
      if (GL.currentContext.version >= 2) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
        GLctx.uniform1iv(webglGetUniformLocation(location), HEAP32, value>>2, count);
        return;
      }
  
      if (count <= 288) {
        // avoid allocation when uploading few enough uniforms
        var view = __miniTempWebGLIntBuffers[count-1];
        for (var i = 0; i < count; ++i) {
          view[i] = HEAP32[(((value)+(4*i))>>2)];
        }
      } else
      {
        var view = HEAP32.subarray((value)>>2, (value+count*4)>>2);
      }
      GLctx.uniform1iv(webglGetUniformLocation(location), view);
    }

  function _glUniform1uiv(location, count, value) {
      GLctx.uniform1uiv(webglGetUniformLocation(location), HEAPU32, value>>2, count);
    }

  function _glUniform2fv(location, count, value) {
  
      if (GL.currentContext.version >= 2) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
        GLctx.uniform2fv(webglGetUniformLocation(location), HEAPF32, value>>2, count*2);
        return;
      }
  
      if (count <= 144) {
        // avoid allocation when uploading few enough uniforms
        var view = miniTempWebGLFloatBuffers[2*count-1];
        for (var i = 0; i < 2*count; i += 2) {
          view[i] = HEAPF32[(((value)+(4*i))>>2)];
          view[i+1] = HEAPF32[(((value)+(4*i+4))>>2)];
        }
      } else
      {
        var view = HEAPF32.subarray((value)>>2, (value+count*8)>>2);
      }
      GLctx.uniform2fv(webglGetUniformLocation(location), view);
    }

  function _glUniform2iv(location, count, value) {
  
      if (GL.currentContext.version >= 2) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
        GLctx.uniform2iv(webglGetUniformLocation(location), HEAP32, value>>2, count*2);
        return;
      }
  
      if (count <= 144) {
        // avoid allocation when uploading few enough uniforms
        var view = __miniTempWebGLIntBuffers[2*count-1];
        for (var i = 0; i < 2*count; i += 2) {
          view[i] = HEAP32[(((value)+(4*i))>>2)];
          view[i+1] = HEAP32[(((value)+(4*i+4))>>2)];
        }
      } else
      {
        var view = HEAP32.subarray((value)>>2, (value+count*8)>>2);
      }
      GLctx.uniform2iv(webglGetUniformLocation(location), view);
    }

  function _glUniform2uiv(location, count, value) {
      GLctx.uniform2uiv(webglGetUniformLocation(location), HEAPU32, value>>2, count*2);
    }

  function _glUniform3fv(location, count, value) {
  
      if (GL.currentContext.version >= 2) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
        GLctx.uniform3fv(webglGetUniformLocation(location), HEAPF32, value>>2, count*3);
        return;
      }
  
      if (count <= 96) {
        // avoid allocation when uploading few enough uniforms
        var view = miniTempWebGLFloatBuffers[3*count-1];
        for (var i = 0; i < 3*count; i += 3) {
          view[i] = HEAPF32[(((value)+(4*i))>>2)];
          view[i+1] = HEAPF32[(((value)+(4*i+4))>>2)];
          view[i+2] = HEAPF32[(((value)+(4*i+8))>>2)];
        }
      } else
      {
        var view = HEAPF32.subarray((value)>>2, (value+count*12)>>2);
      }
      GLctx.uniform3fv(webglGetUniformLocation(location), view);
    }

  function _glUniform3iv(location, count, value) {
  
      if (GL.currentContext.version >= 2) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
        GLctx.uniform3iv(webglGetUniformLocation(location), HEAP32, value>>2, count*3);
        return;
      }
  
      if (count <= 96) {
        // avoid allocation when uploading few enough uniforms
        var view = __miniTempWebGLIntBuffers[3*count-1];
        for (var i = 0; i < 3*count; i += 3) {
          view[i] = HEAP32[(((value)+(4*i))>>2)];
          view[i+1] = HEAP32[(((value)+(4*i+4))>>2)];
          view[i+2] = HEAP32[(((value)+(4*i+8))>>2)];
        }
      } else
      {
        var view = HEAP32.subarray((value)>>2, (value+count*12)>>2);
      }
      GLctx.uniform3iv(webglGetUniformLocation(location), view);
    }

  function _glUniform3uiv(location, count, value) {
      GLctx.uniform3uiv(webglGetUniformLocation(location), HEAPU32, value>>2, count*3);
    }

  function _glUniform4fv(location, count, value) {
  
      if (GL.currentContext.version >= 2) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
        GLctx.uniform4fv(webglGetUniformLocation(location), HEAPF32, value>>2, count*4);
        return;
      }
  
      if (count <= 72) {
        // avoid allocation when uploading few enough uniforms
        var view = miniTempWebGLFloatBuffers[4*count-1];
        // hoist the heap out of the loop for size and for pthreads+growth.
        var heap = HEAPF32;
        value >>= 2;
        for (var i = 0; i < 4 * count; i += 4) {
          var dst = value + i;
          view[i] = heap[dst];
          view[i + 1] = heap[dst + 1];
          view[i + 2] = heap[dst + 2];
          view[i + 3] = heap[dst + 3];
        }
      } else
      {
        var view = HEAPF32.subarray((value)>>2, (value+count*16)>>2);
      }
      GLctx.uniform4fv(webglGetUniformLocation(location), view);
    }

  function _glUniform4iv(location, count, value) {
  
      if (GL.currentContext.version >= 2) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
        GLctx.uniform4iv(webglGetUniformLocation(location), HEAP32, value>>2, count*4);
        return;
      }
  
      if (count <= 72) {
        // avoid allocation when uploading few enough uniforms
        var view = __miniTempWebGLIntBuffers[4*count-1];
        for (var i = 0; i < 4*count; i += 4) {
          view[i] = HEAP32[(((value)+(4*i))>>2)];
          view[i+1] = HEAP32[(((value)+(4*i+4))>>2)];
          view[i+2] = HEAP32[(((value)+(4*i+8))>>2)];
          view[i+3] = HEAP32[(((value)+(4*i+12))>>2)];
        }
      } else
      {
        var view = HEAP32.subarray((value)>>2, (value+count*16)>>2);
      }
      GLctx.uniform4iv(webglGetUniformLocation(location), view);
    }

  function _glUniform4uiv(location, count, value) {
      GLctx.uniform4uiv(webglGetUniformLocation(location), HEAPU32, value>>2, count*4);
    }

  function _glUniformBlockBinding(program, uniformBlockIndex, uniformBlockBinding) {
      program = GL.programs[program];
  
      GLctx['uniformBlockBinding'](program, uniformBlockIndex, uniformBlockBinding);
    }

  function _glUniformMatrix3fv(location, count, transpose, value) {
  
      if (GL.currentContext.version >= 2) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
        GLctx.uniformMatrix3fv(webglGetUniformLocation(location), !!transpose, HEAPF32, value>>2, count*9);
        return;
      }
  
      if (count <= 32) {
        // avoid allocation when uploading few enough uniforms
        var view = miniTempWebGLFloatBuffers[9*count-1];
        for (var i = 0; i < 9*count; i += 9) {
          view[i] = HEAPF32[(((value)+(4*i))>>2)];
          view[i+1] = HEAPF32[(((value)+(4*i+4))>>2)];
          view[i+2] = HEAPF32[(((value)+(4*i+8))>>2)];
          view[i+3] = HEAPF32[(((value)+(4*i+12))>>2)];
          view[i+4] = HEAPF32[(((value)+(4*i+16))>>2)];
          view[i+5] = HEAPF32[(((value)+(4*i+20))>>2)];
          view[i+6] = HEAPF32[(((value)+(4*i+24))>>2)];
          view[i+7] = HEAPF32[(((value)+(4*i+28))>>2)];
          view[i+8] = HEAPF32[(((value)+(4*i+32))>>2)];
        }
      } else
      {
        var view = HEAPF32.subarray((value)>>2, (value+count*36)>>2);
      }
      GLctx.uniformMatrix3fv(webglGetUniformLocation(location), !!transpose, view);
    }

  function _glUniformMatrix4fv(location, count, transpose, value) {
  
      if (GL.currentContext.version >= 2) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
        GLctx.uniformMatrix4fv(webglGetUniformLocation(location), !!transpose, HEAPF32, value>>2, count*16);
        return;
      }
  
      if (count <= 18) {
        // avoid allocation when uploading few enough uniforms
        var view = miniTempWebGLFloatBuffers[16*count-1];
        // hoist the heap out of the loop for size and for pthreads+growth.
        var heap = HEAPF32;
        value >>= 2;
        for (var i = 0; i < 16 * count; i += 16) {
          var dst = value + i;
          view[i] = heap[dst];
          view[i + 1] = heap[dst + 1];
          view[i + 2] = heap[dst + 2];
          view[i + 3] = heap[dst + 3];
          view[i + 4] = heap[dst + 4];
          view[i + 5] = heap[dst + 5];
          view[i + 6] = heap[dst + 6];
          view[i + 7] = heap[dst + 7];
          view[i + 8] = heap[dst + 8];
          view[i + 9] = heap[dst + 9];
          view[i + 10] = heap[dst + 10];
          view[i + 11] = heap[dst + 11];
          view[i + 12] = heap[dst + 12];
          view[i + 13] = heap[dst + 13];
          view[i + 14] = heap[dst + 14];
          view[i + 15] = heap[dst + 15];
        }
      } else
      {
        var view = HEAPF32.subarray((value)>>2, (value+count*64)>>2);
      }
      GLctx.uniformMatrix4fv(webglGetUniformLocation(location), !!transpose, view);
    }

  function _glUnmapBuffer(target) {
      if (!emscriptenWebGLValidateMapBufferTarget(target)) {
        GL.recordError(0x500/*GL_INVALID_ENUM*/);
        err('GL_INVALID_ENUM in glUnmapBuffer');
        return 0;
      }
  
      var buffer = emscriptenWebGLGetBufferBinding(target);
      var mapping = GL.mappedBuffers[buffer];
      if (!mapping) {
        GL.recordError(0x502 /* GL_INVALID_OPERATION */);
        err('buffer was never mapped in glUnmapBuffer');
        return 0;
      }
      GL.mappedBuffers[buffer] = null;
  
      if (!(mapping.access & 0x10)) /* GL_MAP_FLUSH_EXPLICIT_BIT */
        if (GL.currentContext.version >= 2) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
          GLctx.bufferSubData(target, mapping.offset, HEAPU8, mapping.mem, mapping.length);
        } else {
          GLctx.bufferSubData(target, mapping.offset, HEAPU8.subarray(mapping.mem, mapping.mem+mapping.length));
        }
      _free(mapping.mem);
      return 1;
    }

  function webglApplyExplicitProgramBindings() {
      var p = GLctx.currentProgram;
      if (!p.explicitProgramBindingsApplied) {
        if (GL.currentContext.version >= 2) {
          Object.keys(p.explicitUniformBindings).forEach(function(ubo) {
            var bindings = p.explicitUniformBindings[ubo];
            for(var i = 0; i < bindings[1]; ++i) {
              var blockIndex = GLctx.getUniformBlockIndex(p, ubo + (bindings[1] > 1 ? '[' + i + ']' : ''));
              GLctx.uniformBlockBinding(p, blockIndex, bindings[0]+i);
            }
          });
        }
        Object.keys(p.explicitSamplerBindings).forEach(function(sampler) {
          var bindings = p.explicitSamplerBindings[sampler];
          for(var i = 0; i < bindings[1]; ++i) {
            GLctx.uniform1i(GLctx.getUniformLocation(p, sampler + (i ? '['+i+']' : '')), bindings[0]+i);
          }
        });
        p.explicitProgramBindingsApplied = 1;
      }
    }
  function _glUseProgram(program) {
      program = GL.programs[program];
      GLctx.useProgram(program);
      // Record the currently active program so that we can access the uniform
      // mapping table of that program.
      if ((GLctx.currentProgram = program)) {
        webglApplyExplicitProgramBindings();
      }
    }

  function _glValidateProgram(program) {
      GLctx.validateProgram(GL.programs[program]);
    }

  function _glVertexAttrib4f(x0, x1, x2, x3, x4) { GLctx['vertexAttrib4f'](x0, x1, x2, x3, x4) }

  function _glVertexAttrib4fv(index, v) {
  
      GLctx.vertexAttrib4f(index, HEAPF32[v>>2], HEAPF32[v+4>>2], HEAPF32[v+8>>2], HEAPF32[v+12>>2]);
    }

  function _glVertexAttribIPointer(index, size, type, stride, ptr) {
      var cb = GL.currentContext.clientBuffers[index];
      if (!GLctx.currentArrayBufferBinding) {
        cb.size = size;
        cb.type = type;
        cb.normalized = false;
        cb.stride = stride;
        cb.ptr = ptr;
        cb.clientside = true;
        cb.vertexAttribPointerAdaptor = function(index, size, type, normalized, stride, ptr) {
          this.vertexAttribIPointer(index, size, type, stride, ptr);
        };
        return;
      }
      cb.clientside = false;
      GLctx['vertexAttribIPointer'](index, size, type, stride, ptr);
    }

  function _glVertexAttribPointer(index, size, type, normalized, stride, ptr) {
      var cb = GL.currentContext.clientBuffers[index];
      if (!GLctx.currentArrayBufferBinding) {
        cb.size = size;
        cb.type = type;
        cb.normalized = normalized;
        cb.stride = stride;
        cb.ptr = ptr;
        cb.clientside = true;
        cb.vertexAttribPointerAdaptor = function(index, size, type, normalized, stride, ptr) {
          this.vertexAttribPointer(index, size, type, normalized, stride, ptr);
        };
        return;
      }
      cb.clientside = false;
      GLctx.vertexAttribPointer(index, size, type, !!normalized, stride, ptr);
    }

  function _glViewport(x0, x1, x2, x3) { GLctx['viewport'](x0, x1, x2, x3) }

  function _llvm_eh_typeid_for(type) {
      return type;
    }

  function _setTempRet0(val) {
      setTempRet0(val);
    }

  function __isLeapYear(year) {
        return year%4 === 0 && (year%100 !== 0 || year%400 === 0);
    }
  
  function __arraySum(array, index) {
      var sum = 0;
      for (var i = 0; i <= index; sum += array[i++]) {
        // no-op
      }
      return sum;
    }
  
  var __MONTH_DAYS_LEAP = [31,29,31,30,31,30,31,31,30,31,30,31];
  
  var __MONTH_DAYS_REGULAR = [31,28,31,30,31,30,31,31,30,31,30,31];
  function __addDays(date, days) {
      var newDate = new Date(date.getTime());
      while (days > 0) {
        var leap = __isLeapYear(newDate.getFullYear());
        var currentMonth = newDate.getMonth();
        var daysInCurrentMonth = (leap ? __MONTH_DAYS_LEAP : __MONTH_DAYS_REGULAR)[currentMonth];
  
        if (days > daysInCurrentMonth-newDate.getDate()) {
          // we spill over to next month
          days -= (daysInCurrentMonth-newDate.getDate()+1);
          newDate.setDate(1);
          if (currentMonth < 11) {
            newDate.setMonth(currentMonth+1)
          } else {
            newDate.setMonth(0);
            newDate.setFullYear(newDate.getFullYear()+1);
          }
        } else {
          // we stay in current month
          newDate.setDate(newDate.getDate()+days);
          return newDate;
        }
      }
  
      return newDate;
    }
  function _strftime(s, maxsize, format, tm) {
      // size_t strftime(char *restrict s, size_t maxsize, const char *restrict format, const struct tm *restrict timeptr);
      // http://pubs.opengroup.org/onlinepubs/009695399/functions/strftime.html
  
      var tm_zone = HEAP32[(((tm)+(40))>>2)];
  
      var date = {
        tm_sec: HEAP32[((tm)>>2)],
        tm_min: HEAP32[(((tm)+(4))>>2)],
        tm_hour: HEAP32[(((tm)+(8))>>2)],
        tm_mday: HEAP32[(((tm)+(12))>>2)],
        tm_mon: HEAP32[(((tm)+(16))>>2)],
        tm_year: HEAP32[(((tm)+(20))>>2)],
        tm_wday: HEAP32[(((tm)+(24))>>2)],
        tm_yday: HEAP32[(((tm)+(28))>>2)],
        tm_isdst: HEAP32[(((tm)+(32))>>2)],
        tm_gmtoff: HEAP32[(((tm)+(36))>>2)],
        tm_zone: tm_zone ? UTF8ToString(tm_zone) : ''
      };
  
      var pattern = UTF8ToString(format);
  
      // expand format
      var EXPANSION_RULES_1 = {
        '%c': '%a %b %d %H:%M:%S %Y',     // Replaced by the locale's appropriate date and time representation - e.g., Mon Aug  3 14:02:01 2013
        '%D': '%m/%d/%y',                 // Equivalent to %m / %d / %y
        '%F': '%Y-%m-%d',                 // Equivalent to %Y - %m - %d
        '%h': '%b',                       // Equivalent to %b
        '%r': '%I:%M:%S %p',              // Replaced by the time in a.m. and p.m. notation
        '%R': '%H:%M',                    // Replaced by the time in 24-hour notation
        '%T': '%H:%M:%S',                 // Replaced by the time
        '%x': '%m/%d/%y',                 // Replaced by the locale's appropriate date representation
        '%X': '%H:%M:%S',                 // Replaced by the locale's appropriate time representation
        // Modified Conversion Specifiers
        '%Ec': '%c',                      // Replaced by the locale's alternative appropriate date and time representation.
        '%EC': '%C',                      // Replaced by the name of the base year (period) in the locale's alternative representation.
        '%Ex': '%m/%d/%y',                // Replaced by the locale's alternative date representation.
        '%EX': '%H:%M:%S',                // Replaced by the locale's alternative time representation.
        '%Ey': '%y',                      // Replaced by the offset from %EC (year only) in the locale's alternative representation.
        '%EY': '%Y',                      // Replaced by the full alternative year representation.
        '%Od': '%d',                      // Replaced by the day of the month, using the locale's alternative numeric symbols, filled as needed with leading zeros if there is any alternative symbol for zero; otherwise, with leading <space> characters.
        '%Oe': '%e',                      // Replaced by the day of the month, using the locale's alternative numeric symbols, filled as needed with leading <space> characters.
        '%OH': '%H',                      // Replaced by the hour (24-hour clock) using the locale's alternative numeric symbols.
        '%OI': '%I',                      // Replaced by the hour (12-hour clock) using the locale's alternative numeric symbols.
        '%Om': '%m',                      // Replaced by the month using the locale's alternative numeric symbols.
        '%OM': '%M',                      // Replaced by the minutes using the locale's alternative numeric symbols.
        '%OS': '%S',                      // Replaced by the seconds using the locale's alternative numeric symbols.
        '%Ou': '%u',                      // Replaced by the weekday as a number in the locale's alternative representation (Monday=1).
        '%OU': '%U',                      // Replaced by the week number of the year (Sunday as the first day of the week, rules corresponding to %U ) using the locale's alternative numeric symbols.
        '%OV': '%V',                      // Replaced by the week number of the year (Monday as the first day of the week, rules corresponding to %V ) using the locale's alternative numeric symbols.
        '%Ow': '%w',                      // Replaced by the number of the weekday (Sunday=0) using the locale's alternative numeric symbols.
        '%OW': '%W',                      // Replaced by the week number of the year (Monday as the first day of the week) using the locale's alternative numeric symbols.
        '%Oy': '%y',                      // Replaced by the year (offset from %C ) using the locale's alternative numeric symbols.
      };
      for (var rule in EXPANSION_RULES_1) {
        pattern = pattern.replace(new RegExp(rule, 'g'), EXPANSION_RULES_1[rule]);
      }
  
      var WEEKDAYS = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'];
      var MONTHS = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
  
      function leadingSomething(value, digits, character) {
        var str = typeof value == 'number' ? value.toString() : (value || '');
        while (str.length < digits) {
          str = character[0]+str;
        }
        return str;
      }
  
      function leadingNulls(value, digits) {
        return leadingSomething(value, digits, '0');
      }
  
      function compareByDay(date1, date2) {
        function sgn(value) {
          return value < 0 ? -1 : (value > 0 ? 1 : 0);
        }
  
        var compare;
        if ((compare = sgn(date1.getFullYear()-date2.getFullYear())) === 0) {
          if ((compare = sgn(date1.getMonth()-date2.getMonth())) === 0) {
            compare = sgn(date1.getDate()-date2.getDate());
          }
        }
        return compare;
      }
  
      function getFirstWeekStartDate(janFourth) {
          switch (janFourth.getDay()) {
            case 0: // Sunday
              return new Date(janFourth.getFullYear()-1, 11, 29);
            case 1: // Monday
              return janFourth;
            case 2: // Tuesday
              return new Date(janFourth.getFullYear(), 0, 3);
            case 3: // Wednesday
              return new Date(janFourth.getFullYear(), 0, 2);
            case 4: // Thursday
              return new Date(janFourth.getFullYear(), 0, 1);
            case 5: // Friday
              return new Date(janFourth.getFullYear()-1, 11, 31);
            case 6: // Saturday
              return new Date(janFourth.getFullYear()-1, 11, 30);
          }
      }
  
      function getWeekBasedYear(date) {
          var thisDate = __addDays(new Date(date.tm_year+1900, 0, 1), date.tm_yday);
  
          var janFourthThisYear = new Date(thisDate.getFullYear(), 0, 4);
          var janFourthNextYear = new Date(thisDate.getFullYear()+1, 0, 4);
  
          var firstWeekStartThisYear = getFirstWeekStartDate(janFourthThisYear);
          var firstWeekStartNextYear = getFirstWeekStartDate(janFourthNextYear);
  
          if (compareByDay(firstWeekStartThisYear, thisDate) <= 0) {
            // this date is after the start of the first week of this year
            if (compareByDay(firstWeekStartNextYear, thisDate) <= 0) {
              return thisDate.getFullYear()+1;
            } else {
              return thisDate.getFullYear();
            }
          } else {
            return thisDate.getFullYear()-1;
          }
      }
  
      var EXPANSION_RULES_2 = {
        '%a': function(date) {
          return WEEKDAYS[date.tm_wday].substring(0,3);
        },
        '%A': function(date) {
          return WEEKDAYS[date.tm_wday];
        },
        '%b': function(date) {
          return MONTHS[date.tm_mon].substring(0,3);
        },
        '%B': function(date) {
          return MONTHS[date.tm_mon];
        },
        '%C': function(date) {
          var year = date.tm_year+1900;
          return leadingNulls((year/100)|0,2);
        },
        '%d': function(date) {
          return leadingNulls(date.tm_mday, 2);
        },
        '%e': function(date) {
          return leadingSomething(date.tm_mday, 2, ' ');
        },
        '%g': function(date) {
          // %g, %G, and %V give values according to the ISO 8601:2000 standard week-based year.
          // In this system, weeks begin on a Monday and week 1 of the year is the week that includes
          // January 4th, which is also the week that includes the first Thursday of the year, and
          // is also the first week that contains at least four days in the year.
          // If the first Monday of January is the 2nd, 3rd, or 4th, the preceding days are part of
          // the last week of the preceding year; thus, for Saturday 2nd January 1999,
          // %G is replaced by 1998 and %V is replaced by 53. If December 29th, 30th,
          // or 31st is a Monday, it and any following days are part of week 1 of the following year.
          // Thus, for Tuesday 30th December 1997, %G is replaced by 1998 and %V is replaced by 01.
  
          return getWeekBasedYear(date).toString().substring(2);
        },
        '%G': function(date) {
          return getWeekBasedYear(date);
        },
        '%H': function(date) {
          return leadingNulls(date.tm_hour, 2);
        },
        '%I': function(date) {
          var twelveHour = date.tm_hour;
          if (twelveHour == 0) twelveHour = 12;
          else if (twelveHour > 12) twelveHour -= 12;
          return leadingNulls(twelveHour, 2);
        },
        '%j': function(date) {
          // Day of the year (001-366)
          return leadingNulls(date.tm_mday+__arraySum(__isLeapYear(date.tm_year+1900) ? __MONTH_DAYS_LEAP : __MONTH_DAYS_REGULAR, date.tm_mon-1), 3);
        },
        '%m': function(date) {
          return leadingNulls(date.tm_mon+1, 2);
        },
        '%M': function(date) {
          return leadingNulls(date.tm_min, 2);
        },
        '%n': function() {
          return '\n';
        },
        '%p': function(date) {
          if (date.tm_hour >= 0 && date.tm_hour < 12) {
            return 'AM';
          } else {
            return 'PM';
          }
        },
        '%S': function(date) {
          return leadingNulls(date.tm_sec, 2);
        },
        '%t': function() {
          return '\t';
        },
        '%u': function(date) {
          return date.tm_wday || 7;
        },
        '%U': function(date) {
          var days = date.tm_yday + 7 - date.tm_wday;
          return leadingNulls(Math.floor(days / 7), 2);
        },
        '%V': function(date) {
          // Replaced by the week number of the year (Monday as the first day of the week)
          // as a decimal number [01,53]. If the week containing 1 January has four
          // or more days in the new year, then it is considered week 1.
          // Otherwise, it is the last week of the previous year, and the next week is week 1.
          // Both January 4th and the first Thursday of January are always in week 1. [ tm_year, tm_wday, tm_yday]
          var val = Math.floor((date.tm_yday + 7 - (date.tm_wday + 6) % 7 ) / 7);
          // If 1 Jan is just 1-3 days past Monday, the previous week
          // is also in this year.
          if ((date.tm_wday + 371 - date.tm_yday - 2) % 7 <= 2) {
            val++;
          }
          if (!val) {
            val = 52;
            // If 31 December of prev year a Thursday, or Friday of a
            // leap year, then the prev year has 53 weeks.
            var dec31 = (date.tm_wday + 7 - date.tm_yday - 1) % 7;
            if (dec31 == 4 || (dec31 == 5 && __isLeapYear(date.tm_year%400-1))) {
              val++;
            }
          } else if (val == 53) {
            // If 1 January is not a Thursday, and not a Wednesday of a
            // leap year, then this year has only 52 weeks.
            var jan1 = (date.tm_wday + 371 - date.tm_yday) % 7;
            if (jan1 != 4 && (jan1 != 3 || !__isLeapYear(date.tm_year)))
              val = 1;
          }
          return leadingNulls(val, 2);
        },
        '%w': function(date) {
          return date.tm_wday;
        },
        '%W': function(date) {
          var days = date.tm_yday + 7 - ((date.tm_wday + 6) % 7);
          return leadingNulls(Math.floor(days / 7), 2);
        },
        '%y': function(date) {
          // Replaced by the last two digits of the year as a decimal number [00,99]. [ tm_year]
          return (date.tm_year+1900).toString().substring(2);
        },
        '%Y': function(date) {
          // Replaced by the year as a decimal number (for example, 1997). [ tm_year]
          return date.tm_year+1900;
        },
        '%z': function(date) {
          // Replaced by the offset from UTC in the ISO 8601:2000 standard format ( +hhmm or -hhmm ).
          // For example, "-0430" means 4 hours 30 minutes behind UTC (west of Greenwich).
          var off = date.tm_gmtoff;
          var ahead = off >= 0;
          off = Math.abs(off) / 60;
          // convert from minutes into hhmm format (which means 60 minutes = 100 units)
          off = (off / 60)*100 + (off % 60);
          return (ahead ? '+' : '-') + String("0000" + off).slice(-4);
        },
        '%Z': function(date) {
          return date.tm_zone;
        },
        '%%': function() {
          return '%';
        }
      };
  
      // Replace %% with a pair of NULLs (which cannot occur in a C string), then
      // re-inject them after processing.
      pattern = pattern.replace(/%%/g, '\0\0')
      for (var rule in EXPANSION_RULES_2) {
        if (pattern.includes(rule)) {
          pattern = pattern.replace(new RegExp(rule, 'g'), EXPANSION_RULES_2[rule](date));
        }
      }
      pattern = pattern.replace(/\0\0/g, '%')
  
      var bytes = intArrayFromString(pattern, false);
      if (bytes.length > maxsize) {
        return 0;
      }
  
      writeArrayToMemory(bytes, s);
      return bytes.length-1;
    }

  var FSNode = /** @constructor */ function(parent, name, mode, rdev) {
    if (!parent) {
      parent = this;  // root node sets parent to itself
    }
    this.parent = parent;
    this.mount = parent.mount;
    this.mounted = null;
    this.id = FS.nextInode++;
    this.name = name;
    this.mode = mode;
    this.node_ops = {};
    this.stream_ops = {};
    this.rdev = rdev;
  };
  var readMode = 292/*292*/ | 73/*73*/;
  var writeMode = 146/*146*/;
  Object.defineProperties(FSNode.prototype, {
   read: {
    get: /** @this{FSNode} */function() {
     return (this.mode & readMode) === readMode;
    },
    set: /** @this{FSNode} */function(val) {
     val ? this.mode |= readMode : this.mode &= ~readMode;
    }
   },
   write: {
    get: /** @this{FSNode} */function() {
     return (this.mode & writeMode) === writeMode;
    },
    set: /** @this{FSNode} */function(val) {
     val ? this.mode |= writeMode : this.mode &= ~writeMode;
    }
   },
   isFolder: {
    get: /** @this{FSNode} */function() {
     return FS.isDir(this.mode);
    }
   },
   isDevice: {
    get: /** @this{FSNode} */function() {
     return FS.isChrdev(this.mode);
    }
   }
  });
  FS.FSNode = FSNode;
  FS.staticInit();Module["FS_createPath"] = FS.createPath;Module["FS_createDataFile"] = FS.createDataFile;;
ERRNO_CODES = {
      'EPERM': 63,
      'ENOENT': 44,
      'ESRCH': 71,
      'EINTR': 27,
      'EIO': 29,
      'ENXIO': 60,
      'E2BIG': 1,
      'ENOEXEC': 45,
      'EBADF': 8,
      'ECHILD': 12,
      'EAGAIN': 6,
      'EWOULDBLOCK': 6,
      'ENOMEM': 48,
      'EACCES': 2,
      'EFAULT': 21,
      'ENOTBLK': 105,
      'EBUSY': 10,
      'EEXIST': 20,
      'EXDEV': 75,
      'ENODEV': 43,
      'ENOTDIR': 54,
      'EISDIR': 31,
      'EINVAL': 28,
      'ENFILE': 41,
      'EMFILE': 33,
      'ENOTTY': 59,
      'ETXTBSY': 74,
      'EFBIG': 22,
      'ENOSPC': 51,
      'ESPIPE': 70,
      'EROFS': 69,
      'EMLINK': 34,
      'EPIPE': 64,
      'EDOM': 18,
      'ERANGE': 68,
      'ENOMSG': 49,
      'EIDRM': 24,
      'ECHRNG': 106,
      'EL2NSYNC': 156,
      'EL3HLT': 107,
      'EL3RST': 108,
      'ELNRNG': 109,
      'EUNATCH': 110,
      'ENOCSI': 111,
      'EL2HLT': 112,
      'EDEADLK': 16,
      'ENOLCK': 46,
      'EBADE': 113,
      'EBADR': 114,
      'EXFULL': 115,
      'ENOANO': 104,
      'EBADRQC': 103,
      'EBADSLT': 102,
      'EDEADLOCK': 16,
      'EBFONT': 101,
      'ENOSTR': 100,
      'ENODATA': 116,
      'ETIME': 117,
      'ENOSR': 118,
      'ENONET': 119,
      'ENOPKG': 120,
      'EREMOTE': 121,
      'ENOLINK': 47,
      'EADV': 122,
      'ESRMNT': 123,
      'ECOMM': 124,
      'EPROTO': 65,
      'EMULTIHOP': 36,
      'EDOTDOT': 125,
      'EBADMSG': 9,
      'ENOTUNIQ': 126,
      'EBADFD': 127,
      'EREMCHG': 128,
      'ELIBACC': 129,
      'ELIBBAD': 130,
      'ELIBSCN': 131,
      'ELIBMAX': 132,
      'ELIBEXEC': 133,
      'ENOSYS': 52,
      'ENOTEMPTY': 55,
      'ENAMETOOLONG': 37,
      'ELOOP': 32,
      'EOPNOTSUPP': 138,
      'EPFNOSUPPORT': 139,
      'ECONNRESET': 15,
      'ENOBUFS': 42,
      'EAFNOSUPPORT': 5,
      'EPROTOTYPE': 67,
      'ENOTSOCK': 57,
      'ENOPROTOOPT': 50,
      'ESHUTDOWN': 140,
      'ECONNREFUSED': 14,
      'EADDRINUSE': 3,
      'ECONNABORTED': 13,
      'ENETUNREACH': 40,
      'ENETDOWN': 38,
      'ETIMEDOUT': 73,
      'EHOSTDOWN': 142,
      'EHOSTUNREACH': 23,
      'EINPROGRESS': 26,
      'EALREADY': 7,
      'EDESTADDRREQ': 17,
      'EMSGSIZE': 35,
      'EPROTONOSUPPORT': 66,
      'ESOCKTNOSUPPORT': 137,
      'EADDRNOTAVAIL': 4,
      'ENETRESET': 39,
      'EISCONN': 30,
      'ENOTCONN': 53,
      'ETOOMANYREFS': 141,
      'EUSERS': 136,
      'EDQUOT': 19,
      'ESTALE': 72,
      'ENOTSUP': 138,
      'ENOMEDIUM': 148,
      'EILSEQ': 25,
      'EOVERFLOW': 61,
      'ECANCELED': 11,
      'ENOTRECOVERABLE': 56,
      'EOWNERDEAD': 62,
      'ESTRPIPE': 135,
    };;
Module["requestFullscreen"] = function Module_requestFullscreen(lockPointer, resizeCanvas) { Browser.requestFullscreen(lockPointer, resizeCanvas) };
  Module["requestFullScreen"] = function Module_requestFullScreen() { Browser.requestFullScreen() };
  Module["requestAnimationFrame"] = function Module_requestAnimationFrame(func) { Browser.requestAnimationFrame(func) };
  Module["setCanvasSize"] = function Module_setCanvasSize(width, height, noUpdates) { Browser.setCanvasSize(width, height, noUpdates) };
  Module["pauseMainLoop"] = function Module_pauseMainLoop() { Browser.mainLoop.pause() };
  Module["resumeMainLoop"] = function Module_resumeMainLoop() { Browser.mainLoop.resume() };
  Module["getUserMedia"] = function Module_getUserMedia() { Browser.getUserMedia() }
  Module["createContext"] = function Module_createContext(canvas, useWebGL, setInModule, webGLContextAttributes) { return Browser.createContext(canvas, useWebGL, setInModule, webGLContextAttributes) };
var GLctx;;
for (var i = 0; i < 32; ++i) tempFixedLengthArray.push(new Array(i));;
var miniTempWebGLFloatBuffersStorage = new Float32Array(288);
  for (/**@suppress{duplicate}*/var i = 0; i < 288; ++i) {
  miniTempWebGLFloatBuffers[i] = miniTempWebGLFloatBuffersStorage.subarray(0, i+1);
  }
  ;
var __miniTempWebGLIntBuffersStorage = new Int32Array(288);
  for (/**@suppress{duplicate}*/var i = 0; i < 288; ++i) {
  __miniTempWebGLIntBuffers[i] = __miniTempWebGLIntBuffersStorage.subarray(0, i+1);
  }
  ;
var ASSERTIONS = true;



/** @type {function(string, boolean=, number=)} */
function intArrayFromString(stringy, dontAddNull, length) {
  var len = length > 0 ? length : lengthBytesUTF8(stringy)+1;
  var u8array = new Array(len);
  var numBytesWritten = stringToUTF8Array(stringy, u8array, 0, u8array.length);
  if (dontAddNull) u8array.length = numBytesWritten;
  return u8array;
}

function intArrayToString(array) {
  var ret = [];
  for (var i = 0; i < array.length; i++) {
    var chr = array[i];
    if (chr > 0xFF) {
      if (ASSERTIONS) {
        assert(false, 'Character code ' + chr + ' (' + String.fromCharCode(chr) + ')  at offset ' + i + ' not in 0x00-0xFF.');
      }
      chr &= 0xFF;
    }
    ret.push(String.fromCharCode(chr));
  }
  return ret.join('');
}


function checkIncomingModuleAPI() {
  ignoredModuleProp('fetchSettings');
}
var asmLibraryArg = {
  "GetJSMemoryInfo": _GetJSMemoryInfo,
  "JS_Accelerometer_IsRunning": _JS_Accelerometer_IsRunning,
  "JS_Accelerometer_Start": _JS_Accelerometer_Start,
  "JS_Accelerometer_Stop": _JS_Accelerometer_Stop,
  "JS_CallAsLongAsNoExceptionsSeen": _JS_CallAsLongAsNoExceptionsSeen,
  "JS_Cursor_SetImage": _JS_Cursor_SetImage,
  "JS_Cursor_SetShow": _JS_Cursor_SetShow,
  "JS_DOM_MapViewportCoordinateToElementLocalCoordinate": _JS_DOM_MapViewportCoordinateToElementLocalCoordinate,
  "JS_DOM_UnityCanvasSelector": _JS_DOM_UnityCanvasSelector,
  "JS_FileSystem_Initialize": _JS_FileSystem_Initialize,
  "JS_FileSystem_Sync": _JS_FileSystem_Sync,
  "JS_GravitySensor_IsRunning": _JS_GravitySensor_IsRunning,
  "JS_GravitySensor_Start": _JS_GravitySensor_Start,
  "JS_GravitySensor_Stop": _JS_GravitySensor_Stop,
  "JS_GuardAgainstJsExceptions": _JS_GuardAgainstJsExceptions,
  "JS_Gyroscope_IsRunning": _JS_Gyroscope_IsRunning,
  "JS_Gyroscope_Start": _JS_Gyroscope_Start,
  "JS_Gyroscope_Stop": _JS_Gyroscope_Stop,
  "JS_Init_ContextMenuHandler": _JS_Init_ContextMenuHandler,
  "JS_LinearAccelerationSensor_IsRunning": _JS_LinearAccelerationSensor_IsRunning,
  "JS_LinearAccelerationSensor_Start": _JS_LinearAccelerationSensor_Start,
  "JS_LinearAccelerationSensor_Stop": _JS_LinearAccelerationSensor_Stop,
  "JS_Log_Dump": _JS_Log_Dump,
  "JS_Log_StackTrace": _JS_Log_StackTrace,
  "JS_MobileKeybard_GetIgnoreBlurEvent": _JS_MobileKeybard_GetIgnoreBlurEvent,
  "JS_OrientationSensor_IsRunning": _JS_OrientationSensor_IsRunning,
  "JS_OrientationSensor_Start": _JS_OrientationSensor_Start,
  "JS_OrientationSensor_Stop": _JS_OrientationSensor_Stop,
  "JS_Profiler_InjectJobs": _JS_Profiler_InjectJobs,
  "JS_RequestDeviceSensorPermissionsOnTouch": _JS_RequestDeviceSensorPermissionsOnTouch,
  "JS_RunQuitCallbacks": _JS_RunQuitCallbacks,
  "JS_ScreenOrientation_DeInit": _JS_ScreenOrientation_DeInit,
  "JS_ScreenOrientation_Init": _JS_ScreenOrientation_Init,
  "JS_ScreenOrientation_Lock": _JS_ScreenOrientation_Lock,
  "JS_Sound_Create_Channel": _JS_Sound_Create_Channel,
  "JS_Sound_GetLength": _JS_Sound_GetLength,
  "JS_Sound_GetLoadState": _JS_Sound_GetLoadState,
  "JS_Sound_Init": _JS_Sound_Init,
  "JS_Sound_Load": _JS_Sound_Load,
  "JS_Sound_Load_PCM": _JS_Sound_Load_PCM,
  "JS_Sound_Play": _JS_Sound_Play,
  "JS_Sound_ReleaseInstance": _JS_Sound_ReleaseInstance,
  "JS_Sound_ResumeIfNeeded": _JS_Sound_ResumeIfNeeded,
  "JS_Sound_Set3D": _JS_Sound_Set3D,
  "JS_Sound_SetListenerOrientation": _JS_Sound_SetListenerOrientation,
  "JS_Sound_SetListenerPosition": _JS_Sound_SetListenerPosition,
  "JS_Sound_SetLoop": _JS_Sound_SetLoop,
  "JS_Sound_SetLoopPoints": _JS_Sound_SetLoopPoints,
  "JS_Sound_SetPaused": _JS_Sound_SetPaused,
  "JS_Sound_SetPitch": _JS_Sound_SetPitch,
  "JS_Sound_SetPosition": _JS_Sound_SetPosition,
  "JS_Sound_SetVolume": _JS_Sound_SetVolume,
  "JS_Sound_Stop": _JS_Sound_Stop,
  "JS_SystemInfo_GetCanvasClientSize": _JS_SystemInfo_GetCanvasClientSize,
  "JS_SystemInfo_GetDocumentURL": _JS_SystemInfo_GetDocumentURL,
  "JS_SystemInfo_GetGPUInfo": _JS_SystemInfo_GetGPUInfo,
  "JS_SystemInfo_GetMatchWebGLToCanvasSize": _JS_SystemInfo_GetMatchWebGLToCanvasSize,
  "JS_SystemInfo_GetMemory": _JS_SystemInfo_GetMemory,
  "JS_SystemInfo_GetOS": _JS_SystemInfo_GetOS,
  "JS_SystemInfo_GetPreferredDevicePixelRatio": _JS_SystemInfo_GetPreferredDevicePixelRatio,
  "JS_SystemInfo_GetScreenSize": _JS_SystemInfo_GetScreenSize,
  "JS_SystemInfo_HasAstcHdr": _JS_SystemInfo_HasAstcHdr,
  "JS_SystemInfo_HasCursorLock": _JS_SystemInfo_HasCursorLock,
  "JS_SystemInfo_HasFullscreen": _JS_SystemInfo_HasFullscreen,
  "JS_SystemInfo_HasWebGL": _JS_SystemInfo_HasWebGL,
  "JS_UnityEngineShouldQuit": _JS_UnityEngineShouldQuit,
  "__assert_fail": ___assert_fail,
  "__cxa_allocate_exception": ___cxa_allocate_exception,
  "__cxa_begin_catch": ___cxa_begin_catch,
  "__cxa_end_catch": ___cxa_end_catch,
  "__cxa_find_matching_catch_2": ___cxa_find_matching_catch_2,
  "__cxa_find_matching_catch_3": ___cxa_find_matching_catch_3,
  "__cxa_find_matching_catch_4": ___cxa_find_matching_catch_4,
  "__cxa_free_exception": ___cxa_free_exception,
  "__cxa_rethrow": ___cxa_rethrow,
  "__cxa_throw": ___cxa_throw,
  "__resumeException": ___resumeException,
  "__syscall__newselect": ___syscall__newselect,
  "__syscall_accept4": ___syscall_accept4,
  "__syscall_chmod": ___syscall_chmod,
  "__syscall_connect": ___syscall_connect,
  "__syscall_faccessat": ___syscall_faccessat,
  "__syscall_fcntl64": ___syscall_fcntl64,
  "__syscall_fstat64": ___syscall_fstat64,
  "__syscall_getcwd": ___syscall_getcwd,
  "__syscall_getdents64": ___syscall_getdents64,
  "__syscall_getsockopt": ___syscall_getsockopt,
  "__syscall_ioctl": ___syscall_ioctl,
  "__syscall_lstat64": ___syscall_lstat64,
  "__syscall_mkdir": ___syscall_mkdir,
  "__syscall_newfstatat": ___syscall_newfstatat,
  "__syscall_openat": ___syscall_openat,
  "__syscall_readlinkat": ___syscall_readlinkat,
  "__syscall_recvfrom": ___syscall_recvfrom,
  "__syscall_renameat": ___syscall_renameat,
  "__syscall_rmdir": ___syscall_rmdir,
  "__syscall_sendto": ___syscall_sendto,
  "__syscall_socket": ___syscall_socket,
  "__syscall_stat64": ___syscall_stat64,
  "__syscall_statfs64": ___syscall_statfs64,
  "__syscall_truncate64": ___syscall_truncate64,
  "__syscall_unlinkat": ___syscall_unlinkat,
  "__syscall_utimensat": ___syscall_utimensat,
  "_dlopen_js": __dlopen_js,
  "_dlsym_js": __dlsym_js,
  "_emscripten_date_now": __emscripten_date_now,
  "_emscripten_get_now_is_monotonic": __emscripten_get_now_is_monotonic,
  "_gmtime_js": __gmtime_js,
  "_localtime_js": __localtime_js,
  "_mktime_js": __mktime_js,
  "_mmap_js": __mmap_js,
  "_munmap_js": __munmap_js,
  "_tzset_js": __tzset_js,
  "abort": _abort,
  "emscripten_asm_const_int": _emscripten_asm_const_int,
  "emscripten_asm_const_int_sync_on_main_thread": _emscripten_asm_const_int_sync_on_main_thread,
  "emscripten_cancel_main_loop": _emscripten_cancel_main_loop,
  "emscripten_clear_interval": _emscripten_clear_interval,
  "emscripten_console_error": _emscripten_console_error,
  "emscripten_exit_fullscreen": _emscripten_exit_fullscreen,
  "emscripten_exit_pointerlock": _emscripten_exit_pointerlock,
  "emscripten_get_canvas_element_size": _emscripten_get_canvas_element_size,
  "emscripten_get_fullscreen_status": _emscripten_get_fullscreen_status,
  "emscripten_get_gamepad_status": _emscripten_get_gamepad_status,
  "emscripten_get_heap_max": _emscripten_get_heap_max,
  "emscripten_get_now": _emscripten_get_now,
  "emscripten_get_now_res": _emscripten_get_now_res,
  "emscripten_get_num_gamepads": _emscripten_get_num_gamepads,
  "emscripten_html5_remove_all_event_listeners": _emscripten_html5_remove_all_event_listeners,
  "emscripten_is_webgl_context_lost": _emscripten_is_webgl_context_lost,
  "emscripten_log": _emscripten_log,
  "emscripten_memcpy_big": _emscripten_memcpy_big,
  "emscripten_request_fullscreen": _emscripten_request_fullscreen,
  "emscripten_request_pointerlock": _emscripten_request_pointerlock,
  "emscripten_resize_heap": _emscripten_resize_heap,
  "emscripten_sample_gamepad_data": _emscripten_sample_gamepad_data,
  "emscripten_set_blur_callback_on_thread": _emscripten_set_blur_callback_on_thread,
  "emscripten_set_canvas_element_size": _emscripten_set_canvas_element_size,
  "emscripten_set_focus_callback_on_thread": _emscripten_set_focus_callback_on_thread,
  "emscripten_set_fullscreenchange_callback_on_thread": _emscripten_set_fullscreenchange_callback_on_thread,
  "emscripten_set_gamepadconnected_callback_on_thread": _emscripten_set_gamepadconnected_callback_on_thread,
  "emscripten_set_gamepaddisconnected_callback_on_thread": _emscripten_set_gamepaddisconnected_callback_on_thread,
  "emscripten_set_interval": _emscripten_set_interval,
  "emscripten_set_keydown_callback_on_thread": _emscripten_set_keydown_callback_on_thread,
  "emscripten_set_keypress_callback_on_thread": _emscripten_set_keypress_callback_on_thread,
  "emscripten_set_keyup_callback_on_thread": _emscripten_set_keyup_callback_on_thread,
  "emscripten_set_main_loop": _emscripten_set_main_loop,
  "emscripten_set_main_loop_timing": _emscripten_set_main_loop_timing,
  "emscripten_set_mousedown_callback_on_thread": _emscripten_set_mousedown_callback_on_thread,
  "emscripten_set_mousemove_callback_on_thread": _emscripten_set_mousemove_callback_on_thread,
  "emscripten_set_mouseup_callback_on_thread": _emscripten_set_mouseup_callback_on_thread,
  "emscripten_set_pointerlockchange_callback_on_thread": _emscripten_set_pointerlockchange_callback_on_thread,
  "emscripten_set_touchcancel_callback_on_thread": _emscripten_set_touchcancel_callback_on_thread,
  "emscripten_set_touchend_callback_on_thread": _emscripten_set_touchend_callback_on_thread,
  "emscripten_set_touchmove_callback_on_thread": _emscripten_set_touchmove_callback_on_thread,
  "emscripten_set_touchstart_callback_on_thread": _emscripten_set_touchstart_callback_on_thread,
  "emscripten_set_wheel_callback_on_thread": _emscripten_set_wheel_callback_on_thread,
  "emscripten_webgl_create_context": _emscripten_webgl_create_context,
  "emscripten_webgl_destroy_context": _emscripten_webgl_destroy_context,
  "emscripten_webgl_enable_extension": _emscripten_webgl_enable_extension,
  "emscripten_webgl_get_current_context": _emscripten_webgl_get_current_context,
  "emscripten_webgl_init_context_attributes": _emscripten_webgl_init_context_attributes,
  "emscripten_webgl_make_context_current": _emscripten_webgl_make_context_current,
  "environ_get": _environ_get,
  "environ_sizes_get": _environ_sizes_get,
  "exit": _exit,
  "fd_close": _fd_close,
  "fd_fdstat_get": _fd_fdstat_get,
  "fd_read": _fd_read,
  "fd_seek": _fd_seek,
  "fd_write": _fd_write,
  "getTempRet0": _getTempRet0,
  "gethostbyaddr": _gethostbyaddr,
  "gethostbyname": _gethostbyname,
  "glActiveTexture": _glActiveTexture,
  "glAttachShader": _glAttachShader,
  "glBeginQuery": _glBeginQuery,
  "glBindAttribLocation": _glBindAttribLocation,
  "glBindBuffer": _glBindBuffer,
  "glBindBufferBase": _glBindBufferBase,
  "glBindBufferRange": _glBindBufferRange,
  "glBindFramebuffer": _glBindFramebuffer,
  "glBindRenderbuffer": _glBindRenderbuffer,
  "glBindSampler": _glBindSampler,
  "glBindTexture": _glBindTexture,
  "glBindVertexArray": _glBindVertexArray,
  "glBlendEquation": _glBlendEquation,
  "glBlendEquationSeparate": _glBlendEquationSeparate,
  "glBlendFuncSeparate": _glBlendFuncSeparate,
  "glBlitFramebuffer": _glBlitFramebuffer,
  "glBufferData": _glBufferData,
  "glBufferSubData": _glBufferSubData,
  "glCheckFramebufferStatus": _glCheckFramebufferStatus,
  "glClear": _glClear,
  "glClearBufferfi": _glClearBufferfi,
  "glClearBufferfv": _glClearBufferfv,
  "glClearBufferuiv": _glClearBufferuiv,
  "glClearColor": _glClearColor,
  "glClearDepthf": _glClearDepthf,
  "glClearStencil": _glClearStencil,
  "glClientWaitSync": _glClientWaitSync,
  "glColorMask": _glColorMask,
  "glCompileShader": _glCompileShader,
  "glCompressedTexImage2D": _glCompressedTexImage2D,
  "glCompressedTexImage3D": _glCompressedTexImage3D,
  "glCompressedTexSubImage2D": _glCompressedTexSubImage2D,
  "glCompressedTexSubImage3D": _glCompressedTexSubImage3D,
  "glCopyBufferSubData": _glCopyBufferSubData,
  "glCopyTexImage2D": _glCopyTexImage2D,
  "glCopyTexSubImage2D": _glCopyTexSubImage2D,
  "glCreateProgram": _glCreateProgram,
  "glCreateShader": _glCreateShader,
  "glCullFace": _glCullFace,
  "glDeleteBuffers": _glDeleteBuffers,
  "glDeleteFramebuffers": _glDeleteFramebuffers,
  "glDeleteProgram": _glDeleteProgram,
  "glDeleteQueries": _glDeleteQueries,
  "glDeleteRenderbuffers": _glDeleteRenderbuffers,
  "glDeleteSamplers": _glDeleteSamplers,
  "glDeleteShader": _glDeleteShader,
  "glDeleteSync": _glDeleteSync,
  "glDeleteTextures": _glDeleteTextures,
  "glDeleteVertexArrays": _glDeleteVertexArrays,
  "glDepthFunc": _glDepthFunc,
  "glDepthMask": _glDepthMask,
  "glDetachShader": _glDetachShader,
  "glDisable": _glDisable,
  "glDisableVertexAttribArray": _glDisableVertexAttribArray,
  "glDrawArrays": _glDrawArrays,
  "glDrawArraysInstanced": _glDrawArraysInstanced,
  "glDrawBuffers": _glDrawBuffers,
  "glDrawElements": _glDrawElements,
  "glDrawElementsInstanced": _glDrawElementsInstanced,
  "glEnable": _glEnable,
  "glEnableVertexAttribArray": _glEnableVertexAttribArray,
  "glEndQuery": _glEndQuery,
  "glFenceSync": _glFenceSync,
  "glFinish": _glFinish,
  "glFlush": _glFlush,
  "glFlushMappedBufferRange": _glFlushMappedBufferRange,
  "glFramebufferRenderbuffer": _glFramebufferRenderbuffer,
  "glFramebufferTexture2D": _glFramebufferTexture2D,
  "glFramebufferTextureLayer": _glFramebufferTextureLayer,
  "glFrontFace": _glFrontFace,
  "glGenBuffers": _glGenBuffers,
  "glGenFramebuffers": _glGenFramebuffers,
  "glGenQueries": _glGenQueries,
  "glGenRenderbuffers": _glGenRenderbuffers,
  "glGenSamplers": _glGenSamplers,
  "glGenTextures": _glGenTextures,
  "glGenVertexArrays": _glGenVertexArrays,
  "glGenerateMipmap": _glGenerateMipmap,
  "glGetActiveAttrib": _glGetActiveAttrib,
  "glGetActiveUniform": _glGetActiveUniform,
  "glGetActiveUniformBlockName": _glGetActiveUniformBlockName,
  "glGetActiveUniformBlockiv": _glGetActiveUniformBlockiv,
  "glGetActiveUniformsiv": _glGetActiveUniformsiv,
  "glGetAttribLocation": _glGetAttribLocation,
  "glGetBufferSubData": _glGetBufferSubData,
  "glGetError": _glGetError,
  "glGetFramebufferAttachmentParameteriv": _glGetFramebufferAttachmentParameteriv,
  "glGetIntegeri_v": _glGetIntegeri_v,
  "glGetIntegerv": _glGetIntegerv,
  "glGetInternalformativ": _glGetInternalformativ,
  "glGetProgramBinary": _glGetProgramBinary,
  "glGetProgramInfoLog": _glGetProgramInfoLog,
  "glGetProgramiv": _glGetProgramiv,
  "glGetQueryObjectuiv": _glGetQueryObjectuiv,
  "glGetQueryiv": _glGetQueryiv,
  "glGetRenderbufferParameteriv": _glGetRenderbufferParameteriv,
  "glGetShaderInfoLog": _glGetShaderInfoLog,
  "glGetShaderPrecisionFormat": _glGetShaderPrecisionFormat,
  "glGetShaderSource": _glGetShaderSource,
  "glGetShaderiv": _glGetShaderiv,
  "glGetString": _glGetString,
  "glGetStringi": _glGetStringi,
  "glGetTexParameteriv": _glGetTexParameteriv,
  "glGetUniformBlockIndex": _glGetUniformBlockIndex,
  "glGetUniformIndices": _glGetUniformIndices,
  "glGetUniformLocation": _glGetUniformLocation,
  "glGetUniformiv": _glGetUniformiv,
  "glGetVertexAttribiv": _glGetVertexAttribiv,
  "glInvalidateFramebuffer": _glInvalidateFramebuffer,
  "glIsEnabled": _glIsEnabled,
  "glIsVertexArray": _glIsVertexArray,
  "glLinkProgram": _glLinkProgram,
  "glMapBufferRange": _glMapBufferRange,
  "glPixelStorei": _glPixelStorei,
  "glPolygonOffset": _glPolygonOffset,
  "glProgramBinary": _glProgramBinary,
  "glProgramParameteri": _glProgramParameteri,
  "glReadBuffer": _glReadBuffer,
  "glReadPixels": _glReadPixels,
  "glRenderbufferStorage": _glRenderbufferStorage,
  "glRenderbufferStorageMultisample": _glRenderbufferStorageMultisample,
  "glSamplerParameteri": _glSamplerParameteri,
  "glScissor": _glScissor,
  "glShaderSource": _glShaderSource,
  "glStencilFuncSeparate": _glStencilFuncSeparate,
  "glStencilMask": _glStencilMask,
  "glStencilOpSeparate": _glStencilOpSeparate,
  "glTexImage2D": _glTexImage2D,
  "glTexImage3D": _glTexImage3D,
  "glTexParameterf": _glTexParameterf,
  "glTexParameteri": _glTexParameteri,
  "glTexParameteriv": _glTexParameteriv,
  "glTexStorage2D": _glTexStorage2D,
  "glTexStorage3D": _glTexStorage3D,
  "glTexSubImage2D": _glTexSubImage2D,
  "glTexSubImage3D": _glTexSubImage3D,
  "glUniform1fv": _glUniform1fv,
  "glUniform1i": _glUniform1i,
  "glUniform1iv": _glUniform1iv,
  "glUniform1uiv": _glUniform1uiv,
  "glUniform2fv": _glUniform2fv,
  "glUniform2iv": _glUniform2iv,
  "glUniform2uiv": _glUniform2uiv,
  "glUniform3fv": _glUniform3fv,
  "glUniform3iv": _glUniform3iv,
  "glUniform3uiv": _glUniform3uiv,
  "glUniform4fv": _glUniform4fv,
  "glUniform4iv": _glUniform4iv,
  "glUniform4uiv": _glUniform4uiv,
  "glUniformBlockBinding": _glUniformBlockBinding,
  "glUniformMatrix3fv": _glUniformMatrix3fv,
  "glUniformMatrix4fv": _glUniformMatrix4fv,
  "glUnmapBuffer": _glUnmapBuffer,
  "glUseProgram": _glUseProgram,
  "glValidateProgram": _glValidateProgram,
  "glVertexAttrib4f": _glVertexAttrib4f,
  "glVertexAttrib4fv": _glVertexAttrib4fv,
  "glVertexAttribIPointer": _glVertexAttribIPointer,
  "glVertexAttribPointer": _glVertexAttribPointer,
  "glViewport": _glViewport,
  "invoke_dii": invoke_dii,
  "invoke_i": invoke_i,
  "invoke_ii": invoke_ii,
  "invoke_iii": invoke_iii,
  "invoke_iiii": invoke_iiii,
  "invoke_iiiii": invoke_iiiii,
  "invoke_iiiiii": invoke_iiiiii,
  "invoke_iiiiiii": invoke_iiiiiii,
  "invoke_iiiiiiii": invoke_iiiiiiii,
  "invoke_iiiiiiiii": invoke_iiiiiiiii,
  "invoke_iiiiiiiiii": invoke_iiiiiiiiii,
  "invoke_iiiiiiiiiii": invoke_iiiiiiiiiii,
  "invoke_iiiijii": invoke_iiiijii,
  "invoke_iiijiii": invoke_iiijiii,
  "invoke_iij": invoke_iij,
  "invoke_iiji": invoke_iiji,
  "invoke_iijii": invoke_iijii,
  "invoke_iijji": invoke_iijji,
  "invoke_iji": invoke_iji,
  "invoke_ijji": invoke_ijji,
  "invoke_j": invoke_j,
  "invoke_jii": invoke_jii,
  "invoke_jiii": invoke_jiii,
  "invoke_jiiiii": invoke_jiiiii,
  "invoke_jiiiiiiiiii": invoke_jiiiiiiiiii,
  "invoke_jiji": invoke_jiji,
  "invoke_jijii": invoke_jijii,
  "invoke_jjji": invoke_jjji,
  "invoke_v": invoke_v,
  "invoke_vi": invoke_vi,
  "invoke_vii": invoke_vii,
  "invoke_viifi": invoke_viifi,
  "invoke_viii": invoke_viii,
  "invoke_viiii": invoke_viiii,
  "invoke_viiiii": invoke_viiiii,
  "invoke_viiiiii": invoke_viiiiii,
  "invoke_viiiiiii": invoke_viiiiiii,
  "invoke_viiiiiiii": invoke_viiiiiiii,
  "invoke_viiiiiiiii": invoke_viiiiiiiii,
  "invoke_viiiiiiiiii": invoke_viiiiiiiiii,
  "invoke_viiji": invoke_viiji,
  "invoke_viji": invoke_viji,
  "invoke_vijiii": invoke_vijiii,
  "invoke_vjiiiii": invoke_vjiiiii,
  "invoke_vjjjiiii": invoke_vjjjiiii,
  "llvm_eh_typeid_for": _llvm_eh_typeid_for,
  "setTempRet0": _setTempRet0,
  "strftime": _strftime
};
var asm = createWasm();
/** @type {function(...*):?} */
var ___wasm_call_ctors = Module["___wasm_call_ctors"] = createExportWrapper("__wasm_call_ctors");

/** @type {function(...*):?} */
var _ReleaseKeys = Module["_ReleaseKeys"] = createExportWrapper("ReleaseKeys");

/** @type {function(...*):?} */
var _getMemInfo = Module["_getMemInfo"] = createExportWrapper("getMemInfo");

/** @type {function(...*):?} */
var _SendMessageFloat = Module["_SendMessageFloat"] = createExportWrapper("SendMessageFloat");

/** @type {function(...*):?} */
var _SendMessageString = Module["_SendMessageString"] = createExportWrapper("SendMessageString");

/** @type {function(...*):?} */
var _SendMessage = Module["_SendMessage"] = createExportWrapper("SendMessage");

/** @type {function(...*):?} */
var _SetFullscreen = Module["_SetFullscreen"] = createExportWrapper("SetFullscreen");

/** @type {function(...*):?} */
var _main = Module["_main"] = createExportWrapper("main");

/** @type {function(...*):?} */
var _InjectProfilerSample = Module["_InjectProfilerSample"] = createExportWrapper("InjectProfilerSample");

/** @type {function(...*):?} */
var ___errno_location = Module["___errno_location"] = createExportWrapper("__errno_location");

/** @type {function(...*):?} */
var ___stdio_exit = Module["___stdio_exit"] = createExportWrapper("__stdio_exit");

/** @type {function(...*):?} */
var ___dl_seterr = Module["___dl_seterr"] = createExportWrapper("__dl_seterr");

/** @type {function(...*):?} */
var _htonl = Module["_htonl"] = createExportWrapper("htonl");

/** @type {function(...*):?} */
var _htons = Module["_htons"] = createExportWrapper("htons");

/** @type {function(...*):?} */
var _ntohs = Module["_ntohs"] = createExportWrapper("ntohs");

/** @type {function(...*):?} */
var _strlen = Module["_strlen"] = createExportWrapper("strlen");

/** @type {function(...*):?} */
var _malloc = Module["_malloc"] = createExportWrapper("malloc");

/** @type {function(...*):?} */
var _free = Module["_free"] = createExportWrapper("free");

/** @type {function(...*):?} */
var _emscripten_builtin_memalign = Module["_emscripten_builtin_memalign"] = createExportWrapper("emscripten_builtin_memalign");

/** @type {function(...*):?} */
var _setThrew = Module["_setThrew"] = createExportWrapper("setThrew");

/** @type {function(...*):?} */
var _saveSetjmp = Module["_saveSetjmp"] = createExportWrapper("saveSetjmp");

/** @type {function(...*):?} */
var _emscripten_stack_init = Module["_emscripten_stack_init"] = function() {
  return (_emscripten_stack_init = Module["_emscripten_stack_init"] = Module["asm"]["emscripten_stack_init"]).apply(null, arguments);
};

/** @type {function(...*):?} */
var _emscripten_stack_get_free = Module["_emscripten_stack_get_free"] = function() {
  return (_emscripten_stack_get_free = Module["_emscripten_stack_get_free"] = Module["asm"]["emscripten_stack_get_free"]).apply(null, arguments);
};

/** @type {function(...*):?} */
var _emscripten_stack_get_base = Module["_emscripten_stack_get_base"] = function() {
  return (_emscripten_stack_get_base = Module["_emscripten_stack_get_base"] = Module["asm"]["emscripten_stack_get_base"]).apply(null, arguments);
};

/** @type {function(...*):?} */
var _emscripten_stack_get_end = Module["_emscripten_stack_get_end"] = function() {
  return (_emscripten_stack_get_end = Module["_emscripten_stack_get_end"] = Module["asm"]["emscripten_stack_get_end"]).apply(null, arguments);
};

/** @type {function(...*):?} */
var stackSave = Module["stackSave"] = createExportWrapper("stackSave");

/** @type {function(...*):?} */
var stackRestore = Module["stackRestore"] = createExportWrapper("stackRestore");

/** @type {function(...*):?} */
var stackAlloc = Module["stackAlloc"] = createExportWrapper("stackAlloc");

/** @type {function(...*):?} */
var ___cxa_demangle = Module["___cxa_demangle"] = createExportWrapper("__cxa_demangle");

/** @type {function(...*):?} */
var ___cxa_can_catch = Module["___cxa_can_catch"] = createExportWrapper("__cxa_can_catch");

/** @type {function(...*):?} */
var ___cxa_is_pointer_type = Module["___cxa_is_pointer_type"] = createExportWrapper("__cxa_is_pointer_type");

/** @type {function(...*):?} */
var dynCall_iidiiii = Module["dynCall_iidiiii"] = createExportWrapper("dynCall_iidiiii");

/** @type {function(...*):?} */
var dynCall_vii = Module["dynCall_vii"] = createExportWrapper("dynCall_vii");

/** @type {function(...*):?} */
var dynCall_iiii = Module["dynCall_iiii"] = createExportWrapper("dynCall_iiii");

/** @type {function(...*):?} */
var dynCall_v = Module["dynCall_v"] = createExportWrapper("dynCall_v");

/** @type {function(...*):?} */
var dynCall_vi = Module["dynCall_vi"] = createExportWrapper("dynCall_vi");

/** @type {function(...*):?} */
var dynCall_viii = Module["dynCall_viii"] = createExportWrapper("dynCall_viii");

/** @type {function(...*):?} */
var dynCall_jiji = Module["dynCall_jiji"] = createExportWrapper("dynCall_jiji");

/** @type {function(...*):?} */
var dynCall_ii = Module["dynCall_ii"] = createExportWrapper("dynCall_ii");

/** @type {function(...*):?} */
var dynCall_iiiii = Module["dynCall_iiiii"] = createExportWrapper("dynCall_iiiii");

/** @type {function(...*):?} */
var dynCall_iii = Module["dynCall_iii"] = createExportWrapper("dynCall_iii");

/** @type {function(...*):?} */
var dynCall_viiii = Module["dynCall_viiii"] = createExportWrapper("dynCall_viiii");

/** @type {function(...*):?} */
var dynCall_viiiiii = Module["dynCall_viiiiii"] = createExportWrapper("dynCall_viiiiii");

/** @type {function(...*):?} */
var dynCall_viiiii = Module["dynCall_viiiii"] = createExportWrapper("dynCall_viiiii");

/** @type {function(...*):?} */
var dynCall_iiiiii = Module["dynCall_iiiiii"] = createExportWrapper("dynCall_iiiiii");

/** @type {function(...*):?} */
var dynCall_i = Module["dynCall_i"] = createExportWrapper("dynCall_i");

/** @type {function(...*):?} */
var dynCall_iiiiiiii = Module["dynCall_iiiiiiii"] = createExportWrapper("dynCall_iiiiiiii");

/** @type {function(...*):?} */
var dynCall_iiijiii = Module["dynCall_iiijiii"] = createExportWrapper("dynCall_iiijiii");

/** @type {function(...*):?} */
var dynCall_iij = Module["dynCall_iij"] = createExportWrapper("dynCall_iij");

/** @type {function(...*):?} */
var dynCall_iiiiiii = Module["dynCall_iiiiiii"] = createExportWrapper("dynCall_iiiiiii");

/** @type {function(...*):?} */
var dynCall_jii = Module["dynCall_jii"] = createExportWrapper("dynCall_jii");

/** @type {function(...*):?} */
var dynCall_viiiiiiii = Module["dynCall_viiiiiiii"] = createExportWrapper("dynCall_viiiiiiii");

/** @type {function(...*):?} */
var dynCall_vifi = Module["dynCall_vifi"] = createExportWrapper("dynCall_vifi");

/** @type {function(...*):?} */
var dynCall_viiiiiii = Module["dynCall_viiiiiii"] = createExportWrapper("dynCall_viiiiiii");

/** @type {function(...*):?} */
var dynCall_viiiiiiiiii = Module["dynCall_viiiiiiiiii"] = createExportWrapper("dynCall_viiiiiiiiii");

/** @type {function(...*):?} */
var dynCall_iijji = Module["dynCall_iijji"] = createExportWrapper("dynCall_iijji");

/** @type {function(...*):?} */
var dynCall_iiiijii = Module["dynCall_iiiijii"] = createExportWrapper("dynCall_iiiijii");

/** @type {function(...*):?} */
var dynCall_iiiiiiiii = Module["dynCall_iiiiiiiii"] = createExportWrapper("dynCall_iiiiiiiii");

/** @type {function(...*):?} */
var dynCall_jiii = Module["dynCall_jiii"] = createExportWrapper("dynCall_jiii");

/** @type {function(...*):?} */
var dynCall_ijji = Module["dynCall_ijji"] = createExportWrapper("dynCall_ijji");

/** @type {function(...*):?} */
var dynCall_j = Module["dynCall_j"] = createExportWrapper("dynCall_j");

/** @type {function(...*):?} */
var dynCall_iijii = Module["dynCall_iijii"] = createExportWrapper("dynCall_iijii");

/** @type {function(...*):?} */
var dynCall_viifi = Module["dynCall_viifi"] = createExportWrapper("dynCall_viifi");

/** @type {function(...*):?} */
var dynCall_dii = Module["dynCall_dii"] = createExportWrapper("dynCall_dii");

/** @type {function(...*):?} */
var dynCall_iji = Module["dynCall_iji"] = createExportWrapper("dynCall_iji");

/** @type {function(...*):?} */
var dynCall_jjji = Module["dynCall_jjji"] = createExportWrapper("dynCall_jjji");

/** @type {function(...*):?} */
var dynCall_jiiiii = Module["dynCall_jiiiii"] = createExportWrapper("dynCall_jiiiii");

/** @type {function(...*):?} */
var dynCall_viiiiiiiii = Module["dynCall_viiiiiiiii"] = createExportWrapper("dynCall_viiiiiiiii");

/** @type {function(...*):?} */
var dynCall_jijii = Module["dynCall_jijii"] = createExportWrapper("dynCall_jijii");

/** @type {function(...*):?} */
var dynCall_vijiii = Module["dynCall_vijiii"] = createExportWrapper("dynCall_vijiii");

/** @type {function(...*):?} */
var dynCall_vjjjiiii = Module["dynCall_vjjjiiii"] = createExportWrapper("dynCall_vjjjiiii");

/** @type {function(...*):?} */
var dynCall_vjiiiii = Module["dynCall_vjiiiii"] = createExportWrapper("dynCall_vjiiiii");

/** @type {function(...*):?} */
var dynCall_viiji = Module["dynCall_viiji"] = createExportWrapper("dynCall_viiji");

/** @type {function(...*):?} */
var dynCall_iiji = Module["dynCall_iiji"] = createExportWrapper("dynCall_iiji");

/** @type {function(...*):?} */
var dynCall_iiiji = Module["dynCall_iiiji"] = createExportWrapper("dynCall_iiiji");

/** @type {function(...*):?} */
var dynCall_viji = Module["dynCall_viji"] = createExportWrapper("dynCall_viji");

/** @type {function(...*):?} */
var dynCall_iiiiiiiiii = Module["dynCall_iiiiiiiiii"] = createExportWrapper("dynCall_iiiiiiiiii");

/** @type {function(...*):?} */
var dynCall_viiiiiiiiiiiiii = Module["dynCall_viiiiiiiiiiiiii"] = createExportWrapper("dynCall_viiiiiiiiiiiiii");

/** @type {function(...*):?} */
var dynCall_viiiiiiiiiii = Module["dynCall_viiiiiiiiiii"] = createExportWrapper("dynCall_viiiiiiiiiii");

/** @type {function(...*):?} */
var dynCall_iiiiiiiiiii = Module["dynCall_iiiiiiiiiii"] = createExportWrapper("dynCall_iiiiiiiiiii");

/** @type {function(...*):?} */
var dynCall_iiiiiiiiiiiii = Module["dynCall_iiiiiiiiiiiii"] = createExportWrapper("dynCall_iiiiiiiiiiiii");

/** @type {function(...*):?} */
var dynCall_ji = Module["dynCall_ji"] = createExportWrapper("dynCall_ji");

/** @type {function(...*):?} */
var dynCall_ijjiii = Module["dynCall_ijjiii"] = createExportWrapper("dynCall_ijjiii");

/** @type {function(...*):?} */
var dynCall_fii = Module["dynCall_fii"] = createExportWrapper("dynCall_fii");

/** @type {function(...*):?} */
var dynCall_vijji = Module["dynCall_vijji"] = createExportWrapper("dynCall_vijji");

/** @type {function(...*):?} */
var dynCall_viffffi = Module["dynCall_viffffi"] = createExportWrapper("dynCall_viffffi");

/** @type {function(...*):?} */
var dynCall_vifffi = Module["dynCall_vifffi"] = createExportWrapper("dynCall_vifffi");

/** @type {function(...*):?} */
var dynCall_ffi = Module["dynCall_ffi"] = createExportWrapper("dynCall_ffi");

/** @type {function(...*):?} */
var dynCall_fffi = Module["dynCall_fffi"] = createExportWrapper("dynCall_fffi");

/** @type {function(...*):?} */
var dynCall_vfii = Module["dynCall_vfii"] = createExportWrapper("dynCall_vfii");

/** @type {function(...*):?} */
var dynCall_viffi = Module["dynCall_viffi"] = createExportWrapper("dynCall_viffi");

/** @type {function(...*):?} */
var dynCall_vjiiii = Module["dynCall_vjiiii"] = createExportWrapper("dynCall_vjiiii");

/** @type {function(...*):?} */
var dynCall_viiffi = Module["dynCall_viiffi"] = createExportWrapper("dynCall_viiffi");

/** @type {function(...*):?} */
var dynCall_vijjii = Module["dynCall_vijjii"] = createExportWrapper("dynCall_vijjii");

/** @type {function(...*):?} */
var dynCall_viiiiiiiijijiii = Module["dynCall_viiiiiiiijijiii"] = createExportWrapper("dynCall_viiiiiiiijijiii");

/** @type {function(...*):?} */
var dynCall_iiifiii = Module["dynCall_iiifiii"] = createExportWrapper("dynCall_iiifiii");

/** @type {function(...*):?} */
var dynCall_iiifii = Module["dynCall_iiifii"] = createExportWrapper("dynCall_iiifii");

/** @type {function(...*):?} */
var dynCall_iiifi = Module["dynCall_iiifi"] = createExportWrapper("dynCall_iiifi");

/** @type {function(...*):?} */
var dynCall_iiiifiii = Module["dynCall_iiiifiii"] = createExportWrapper("dynCall_iiiifiii");

/** @type {function(...*):?} */
var dynCall_iiiifii = Module["dynCall_iiiifii"] = createExportWrapper("dynCall_iiiifii");

/** @type {function(...*):?} */
var dynCall_iiiifi = Module["dynCall_iiiifi"] = createExportWrapper("dynCall_iiiifi");

/** @type {function(...*):?} */
var dynCall_iifiii = Module["dynCall_iifiii"] = createExportWrapper("dynCall_iifiii");

/** @type {function(...*):?} */
var dynCall_iifii = Module["dynCall_iifii"] = createExportWrapper("dynCall_iifii");

/** @type {function(...*):?} */
var dynCall_iifi = Module["dynCall_iifi"] = createExportWrapper("dynCall_iifi");

/** @type {function(...*):?} */
var dynCall_iiiiifiii = Module["dynCall_iiiiifiii"] = createExportWrapper("dynCall_iiiiifiii");

/** @type {function(...*):?} */
var dynCall_iiifiiii = Module["dynCall_iiifiiii"] = createExportWrapper("dynCall_iiifiiii");

/** @type {function(...*):?} */
var dynCall_idiiii = Module["dynCall_idiiii"] = createExportWrapper("dynCall_idiiii");

/** @type {function(...*):?} */
var dynCall_iiiiiiiiiiiiii = Module["dynCall_iiiiiiiiiiiiii"] = createExportWrapper("dynCall_iiiiiiiiiiiiii");

/** @type {function(...*):?} */
var dynCall_iiiiiiiiiiii = Module["dynCall_iiiiiiiiiiii"] = createExportWrapper("dynCall_iiiiiiiiiiii");

/** @type {function(...*):?} */
var dynCall_ifi = Module["dynCall_ifi"] = createExportWrapper("dynCall_ifi");

/** @type {function(...*):?} */
var dynCall_idi = Module["dynCall_idi"] = createExportWrapper("dynCall_idi");

/** @type {function(...*):?} */
var dynCall_fiii = Module["dynCall_fiii"] = createExportWrapper("dynCall_fiii");

/** @type {function(...*):?} */
var dynCall_diii = Module["dynCall_diii"] = createExportWrapper("dynCall_diii");

/** @type {function(...*):?} */
var dynCall_jjii = Module["dynCall_jjii"] = createExportWrapper("dynCall_jjii");

/** @type {function(...*):?} */
var dynCall_vijiiiiiii = Module["dynCall_vijiiiiiii"] = createExportWrapper("dynCall_vijiiiiiii");

/** @type {function(...*):?} */
var dynCall_vijiiiiiiii = Module["dynCall_vijiiiiiiii"] = createExportWrapper("dynCall_vijiiiiiiii");

/** @type {function(...*):?} */
var dynCall_jiiii = Module["dynCall_jiiii"] = createExportWrapper("dynCall_jiiii");

/** @type {function(...*):?} */
var dynCall_jji = Module["dynCall_jji"] = createExportWrapper("dynCall_jji");

/** @type {function(...*):?} */
var dynCall_jijiii = Module["dynCall_jijiii"] = createExportWrapper("dynCall_jijiii");

/** @type {function(...*):?} */
var dynCall_jjiiii = Module["dynCall_jjiiii"] = createExportWrapper("dynCall_jjiiii");

/** @type {function(...*):?} */
var dynCall_jjiiiii = Module["dynCall_jjiiiii"] = createExportWrapper("dynCall_jjiiiii");

/** @type {function(...*):?} */
var dynCall_viijiiiiii = Module["dynCall_viijiiiiii"] = createExportWrapper("dynCall_viijiiiiii");

/** @type {function(...*):?} */
var dynCall_iijiii = Module["dynCall_iijiii"] = createExportWrapper("dynCall_iijiii");

/** @type {function(...*):?} */
var dynCall_iijiiiiii = Module["dynCall_iijiiiiii"] = createExportWrapper("dynCall_iijiiiiii");

/** @type {function(...*):?} */
var dynCall_iiiijjii = Module["dynCall_iiiijjii"] = createExportWrapper("dynCall_iiiijjii");

/** @type {function(...*):?} */
var dynCall_jijjji = Module["dynCall_jijjji"] = createExportWrapper("dynCall_jijjji");

/** @type {function(...*):?} */
var dynCall_jijjjii = Module["dynCall_jijjjii"] = createExportWrapper("dynCall_jijjjii");

/** @type {function(...*):?} */
var dynCall_jjiii = Module["dynCall_jjiii"] = createExportWrapper("dynCall_jjiii");

/** @type {function(...*):?} */
var dynCall_ijiiii = Module["dynCall_ijiiii"] = createExportWrapper("dynCall_ijiiii");

/** @type {function(...*):?} */
var dynCall_ijijiiiii = Module["dynCall_ijijiiiii"] = createExportWrapper("dynCall_ijijiiiii");

/** @type {function(...*):?} */
var dynCall_ijjjiii = Module["dynCall_ijjjiii"] = createExportWrapper("dynCall_ijjjiii");

/** @type {function(...*):?} */
var dynCall_ijiii = Module["dynCall_ijiii"] = createExportWrapper("dynCall_ijiii");

/** @type {function(...*):?} */
var dynCall_ijii = Module["dynCall_ijii"] = createExportWrapper("dynCall_ijii");

/** @type {function(...*):?} */
var dynCall_vjii = Module["dynCall_vjii"] = createExportWrapper("dynCall_vjii");

/** @type {function(...*):?} */
var dynCall_vijjjiijii = Module["dynCall_vijjjiijii"] = createExportWrapper("dynCall_vijjjiijii");

/** @type {function(...*):?} */
var dynCall_ijjjiijii = Module["dynCall_ijjjiijii"] = createExportWrapper("dynCall_ijjjiijii");

/** @type {function(...*):?} */
var dynCall_vijiiiiii = Module["dynCall_vijiiiiii"] = createExportWrapper("dynCall_vijiiiiii");

/** @type {function(...*):?} */
var dynCall_vijiiii = Module["dynCall_vijiiii"] = createExportWrapper("dynCall_vijiiii");

/** @type {function(...*):?} */
var dynCall_jdi = Module["dynCall_jdi"] = createExportWrapper("dynCall_jdi");

/** @type {function(...*):?} */
var dynCall_jfi = Module["dynCall_jfi"] = createExportWrapper("dynCall_jfi");

/** @type {function(...*):?} */
var dynCall_fji = Module["dynCall_fji"] = createExportWrapper("dynCall_fji");

/** @type {function(...*):?} */
var dynCall_fdi = Module["dynCall_fdi"] = createExportWrapper("dynCall_fdi");

/** @type {function(...*):?} */
var dynCall_dji = Module["dynCall_dji"] = createExportWrapper("dynCall_dji");

/** @type {function(...*):?} */
var dynCall_dfi = Module["dynCall_dfi"] = createExportWrapper("dynCall_dfi");

/** @type {function(...*):?} */
var dynCall_vidi = Module["dynCall_vidi"] = createExportWrapper("dynCall_vidi");

/** @type {function(...*):?} */
var dynCall_vijii = Module["dynCall_vijii"] = createExportWrapper("dynCall_vijii");

/** @type {function(...*):?} */
var dynCall_jidii = Module["dynCall_jidii"] = createExportWrapper("dynCall_jidii");

/** @type {function(...*):?} */
var dynCall_jidi = Module["dynCall_jidi"] = createExportWrapper("dynCall_jidi");

/** @type {function(...*):?} */
var dynCall_iidi = Module["dynCall_iidi"] = createExportWrapper("dynCall_iidi");

/** @type {function(...*):?} */
var dynCall_diiii = Module["dynCall_diiii"] = createExportWrapper("dynCall_diiii");

/** @type {function(...*):?} */
var dynCall_ijiijii = Module["dynCall_ijiijii"] = createExportWrapper("dynCall_ijiijii");

/** @type {function(...*):?} */
var dynCall_vjjiiiii = Module["dynCall_vjjiiiii"] = createExportWrapper("dynCall_vjjiiiii");

/** @type {function(...*):?} */
var dynCall_vjjii = Module["dynCall_vjjii"] = createExportWrapper("dynCall_vjjii");

/** @type {function(...*):?} */
var dynCall_ijiiji = Module["dynCall_ijiiji"] = createExportWrapper("dynCall_ijiiji");

/** @type {function(...*):?} */
var dynCall_ijiiiii = Module["dynCall_ijiiiii"] = createExportWrapper("dynCall_ijiiiii");

/** @type {function(...*):?} */
var dynCall_ijiiiiji = Module["dynCall_ijiiiiji"] = createExportWrapper("dynCall_ijiiiiji");

/** @type {function(...*):?} */
var dynCall_viiiiiiiiiiiii = Module["dynCall_viiiiiiiiiiiii"] = createExportWrapper("dynCall_viiiiiiiiiiiii");

/** @type {function(...*):?} */
var dynCall_ddi = Module["dynCall_ddi"] = createExportWrapper("dynCall_ddi");

/** @type {function(...*):?} */
var dynCall_dddi = Module["dynCall_dddi"] = createExportWrapper("dynCall_dddi");

/** @type {function(...*):?} */
var dynCall_idiii = Module["dynCall_idiii"] = createExportWrapper("dynCall_idiii");

/** @type {function(...*):?} */
var dynCall_idiiiii = Module["dynCall_idiiiii"] = createExportWrapper("dynCall_idiiiii");

/** @type {function(...*):?} */
var dynCall_iidiii = Module["dynCall_iidiii"] = createExportWrapper("dynCall_iidiii");

/** @type {function(...*):?} */
var dynCall_ifiii = Module["dynCall_ifiii"] = createExportWrapper("dynCall_ifiii");

/** @type {function(...*):?} */
var dynCall_ifiiiii = Module["dynCall_ifiiiii"] = createExportWrapper("dynCall_ifiiiii");

/** @type {function(...*):?} */
var dynCall_fiiii = Module["dynCall_fiiii"] = createExportWrapper("dynCall_fiiii");

/** @type {function(...*):?} */
var dynCall_jjjii = Module["dynCall_jjjii"] = createExportWrapper("dynCall_jjjii");

/** @type {function(...*):?} */
var dynCall_vdiii = Module["dynCall_vdiii"] = createExportWrapper("dynCall_vdiii");

/** @type {function(...*):?} */
var dynCall_jdii = Module["dynCall_jdii"] = createExportWrapper("dynCall_jdii");

/** @type {function(...*):?} */
var dynCall_vijijji = Module["dynCall_vijijji"] = createExportWrapper("dynCall_vijijji");

/** @type {function(...*):?} */
var dynCall_iijjji = Module["dynCall_iijjji"] = createExportWrapper("dynCall_iijjji");

/** @type {function(...*):?} */
var dynCall_viijji = Module["dynCall_viijji"] = createExportWrapper("dynCall_viijji");

/** @type {function(...*):?} */
var dynCall_viijjji = Module["dynCall_viijjji"] = createExportWrapper("dynCall_viijjji");

/** @type {function(...*):?} */
var dynCall_viiiji = Module["dynCall_viiiji"] = createExportWrapper("dynCall_viiiji");

/** @type {function(...*):?} */
var dynCall_vdii = Module["dynCall_vdii"] = createExportWrapper("dynCall_vdii");

/** @type {function(...*):?} */
var dynCall_fiffi = Module["dynCall_fiffi"] = createExportWrapper("dynCall_fiffi");

/** @type {function(...*):?} */
var dynCall_fifi = Module["dynCall_fifi"] = createExportWrapper("dynCall_fifi");

/** @type {function(...*):?} */
var dynCall_jijji = Module["dynCall_jijji"] = createExportWrapper("dynCall_jijji");

/** @type {function(...*):?} */
var dynCall_diddi = Module["dynCall_diddi"] = createExportWrapper("dynCall_diddi");

/** @type {function(...*):?} */
var dynCall_didi = Module["dynCall_didi"] = createExportWrapper("dynCall_didi");

/** @type {function(...*):?} */
var dynCall_viiiijii = Module["dynCall_viiiijii"] = createExportWrapper("dynCall_viiiijii");

/** @type {function(...*):?} */
var dynCall_viiijji = Module["dynCall_viiijji"] = createExportWrapper("dynCall_viiijji");

/** @type {function(...*):?} */
var dynCall_iijjii = Module["dynCall_iijjii"] = createExportWrapper("dynCall_iijjii");

/** @type {function(...*):?} */
var dynCall_vji = Module["dynCall_vji"] = createExportWrapper("dynCall_vji");

/** @type {function(...*):?} */
var dynCall_viijijii = Module["dynCall_viijijii"] = createExportWrapper("dynCall_viijijii");

/** @type {function(...*):?} */
var dynCall_viijijiii = Module["dynCall_viijijiii"] = createExportWrapper("dynCall_viijijiii");

/** @type {function(...*):?} */
var dynCall_vijiji = Module["dynCall_vijiji"] = createExportWrapper("dynCall_vijiji");

/** @type {function(...*):?} */
var dynCall_viijiijiii = Module["dynCall_viijiijiii"] = createExportWrapper("dynCall_viijiijiii");

/** @type {function(...*):?} */
var dynCall_viiiijiiii = Module["dynCall_viiiijiiii"] = createExportWrapper("dynCall_viiiijiiii");

/** @type {function(...*):?} */
var dynCall_jiiiiii = Module["dynCall_jiiiiii"] = createExportWrapper("dynCall_jiiiiii");

/** @type {function(...*):?} */
var dynCall_fi = Module["dynCall_fi"] = createExportWrapper("dynCall_fi");

/** @type {function(...*):?} */
var dynCall_di = Module["dynCall_di"] = createExportWrapper("dynCall_di");

/** @type {function(...*):?} */
var dynCall_viijjii = Module["dynCall_viijjii"] = createExportWrapper("dynCall_viijjii");

/** @type {function(...*):?} */
var dynCall_vijjji = Module["dynCall_vijjji"] = createExportWrapper("dynCall_vijjji");

/** @type {function(...*):?} */
var dynCall_jiiiiiiiiii = Module["dynCall_jiiiiiiiiii"] = createExportWrapper("dynCall_jiiiiiiiiii");

/** @type {function(...*):?} */
var dynCall_viiiiiiiiiiii = Module["dynCall_viiiiiiiiiiii"] = createExportWrapper("dynCall_viiiiiiiiiiii");

/** @type {function(...*):?} */
var dynCall_viifii = Module["dynCall_viifii"] = createExportWrapper("dynCall_viifii");

/** @type {function(...*):?} */
var dynCall_iiiiijii = Module["dynCall_iiiiijii"] = createExportWrapper("dynCall_iiiiijii");

/** @type {function(...*):?} */
var dynCall_viiifi = Module["dynCall_viiifi"] = createExportWrapper("dynCall_viiifi");

/** @type {function(...*):?} */
var dynCall_viidi = Module["dynCall_viidi"] = createExportWrapper("dynCall_viidi");

/** @type {function(...*):?} */
var dynCall_vfi = Module["dynCall_vfi"] = createExportWrapper("dynCall_vfi");

/** @type {function(...*):?} */
var dynCall_fff = Module["dynCall_fff"] = createExportWrapper("dynCall_fff");

/** @type {function(...*):?} */
var dynCall_ijj = Module["dynCall_ijj"] = createExportWrapper("dynCall_ijj");

/** @type {function(...*):?} */
var dynCall_vjji = Module["dynCall_vjji"] = createExportWrapper("dynCall_vjji");

/** @type {function(...*):?} */
var dynCall_ij = Module["dynCall_ij"] = createExportWrapper("dynCall_ij");

/** @type {function(...*):?} */
var dynCall_vif = Module["dynCall_vif"] = createExportWrapper("dynCall_vif");

/** @type {function(...*):?} */
var dynCall_viif = Module["dynCall_viif"] = createExportWrapper("dynCall_viif");

/** @type {function(...*):?} */
var dynCall_vjiiiiiii = Module["dynCall_vjiiiiiii"] = createExportWrapper("dynCall_vjiiiiiii");

/** @type {function(...*):?} */
var dynCall_viffff = Module["dynCall_viffff"] = createExportWrapper("dynCall_viffff");

/** @type {function(...*):?} */
var dynCall_iiijii = Module["dynCall_iiijii"] = createExportWrapper("dynCall_iiijii");

/** @type {function(...*):?} */
var dynCall_iiiijiii = Module["dynCall_iiiijiii"] = createExportWrapper("dynCall_iiiijiii");

/** @type {function(...*):?} */
var dynCall_iiiij = Module["dynCall_iiiij"] = createExportWrapper("dynCall_iiiij");

/** @type {function(...*):?} */
var dynCall_jiiji = Module["dynCall_jiiji"] = createExportWrapper("dynCall_jiiji");

/** @type {function(...*):?} */
var dynCall_iiif = Module["dynCall_iiif"] = createExportWrapper("dynCall_iiif");

/** @type {function(...*):?} */
var dynCall_fif = Module["dynCall_fif"] = createExportWrapper("dynCall_fif");

/** @type {function(...*):?} */
var dynCall_iiiiiifff = Module["dynCall_iiiiiifff"] = createExportWrapper("dynCall_iiiiiifff");

/** @type {function(...*):?} */
var dynCall_iiiiiifiif = Module["dynCall_iiiiiifiif"] = createExportWrapper("dynCall_iiiiiifiif");

/** @type {function(...*):?} */
var dynCall_viiifii = Module["dynCall_viiifii"] = createExportWrapper("dynCall_viiifii");

/** @type {function(...*):?} */
var dynCall_iiiiiifiii = Module["dynCall_iiiiiifiii"] = createExportWrapper("dynCall_iiiiiifiii");

/** @type {function(...*):?} */
var dynCall_iiiiiiifiif = Module["dynCall_iiiiiiifiif"] = createExportWrapper("dynCall_iiiiiiifiif");

/** @type {function(...*):?} */
var dynCall_fiff = Module["dynCall_fiff"] = createExportWrapper("dynCall_fiff");

/** @type {function(...*):?} */
var dynCall_fiiiiiifiifif = Module["dynCall_fiiiiiifiifif"] = createExportWrapper("dynCall_fiiiiiifiifif");

/** @type {function(...*):?} */
var dynCall_fiiiiiifiiiif = Module["dynCall_fiiiiiifiiiif"] = createExportWrapper("dynCall_fiiiiiifiiiif");

/** @type {function(...*):?} */
var dynCall_vifiiii = Module["dynCall_vifiiii"] = createExportWrapper("dynCall_vifiiii");

/** @type {function(...*):?} */
var dynCall_vifii = Module["dynCall_vifii"] = createExportWrapper("dynCall_vifii");

/** @type {function(...*):?} */
var dynCall_iifiiiijii = Module["dynCall_iifiiiijii"] = createExportWrapper("dynCall_iifiiiijii");

/** @type {function(...*):?} */
var dynCall_vifif = Module["dynCall_vifif"] = createExportWrapper("dynCall_vifif");

/** @type {function(...*):?} */
var dynCall_vifijii = Module["dynCall_vifijii"] = createExportWrapper("dynCall_vifijii");

/** @type {function(...*):?} */
var dynCall_iiiifffiii = Module["dynCall_iiiifffiii"] = createExportWrapper("dynCall_iiiifffiii");

/** @type {function(...*):?} */
var dynCall_iiiifffffi = Module["dynCall_iiiifffffi"] = createExportWrapper("dynCall_iiiifffffi");

/** @type {function(...*):?} */
var dynCall_viffiiiif = Module["dynCall_viffiiiif"] = createExportWrapper("dynCall_viffiiiif");

/** @type {function(...*):?} */
var dynCall_viffiifffffiii = Module["dynCall_viffiifffffiii"] = createExportWrapper("dynCall_viffiifffffiii");

/** @type {function(...*):?} */
var dynCall_viffffiifffiiiiif = Module["dynCall_viffffiifffiiiiif"] = createExportWrapper("dynCall_viffffiifffiiiiif");

/** @type {function(...*):?} */
var dynCall_iiiifffffii = Module["dynCall_iiiifffffii"] = createExportWrapper("dynCall_iiiifffffii");

/** @type {function(...*):?} */
var dynCall_viiiiiiiiiiifii = Module["dynCall_viiiiiiiiiiifii"] = createExportWrapper("dynCall_viiiiiiiiiiifii");

/** @type {function(...*):?} */
var dynCall_viiiffi = Module["dynCall_viiiffi"] = createExportWrapper("dynCall_viiiffi");

/** @type {function(...*):?} */
var dynCall_viff = Module["dynCall_viff"] = createExportWrapper("dynCall_viff");

/** @type {function(...*):?} */
var dynCall_iiiifiiiii = Module["dynCall_iiiifiiiii"] = createExportWrapper("dynCall_iiiifiiiii");

/** @type {function(...*):?} */
var dynCall_iiiiifiiiiif = Module["dynCall_iiiiifiiiiif"] = createExportWrapper("dynCall_iiiiifiiiiif");

/** @type {function(...*):?} */
var dynCall_viiff = Module["dynCall_viiff"] = createExportWrapper("dynCall_viiff");

/** @type {function(...*):?} */
var dynCall_viifffi = Module["dynCall_viifffi"] = createExportWrapper("dynCall_viifffi");

/** @type {function(...*):?} */
var dynCall_viiifiiiii = Module["dynCall_viiifiiiii"] = createExportWrapper("dynCall_viiifiiiii");

/** @type {function(...*):?} */
var dynCall_viiiifiiiiif = Module["dynCall_viiiifiiiiif"] = createExportWrapper("dynCall_viiiifiiiiif");

/** @type {function(...*):?} */
var dynCall_iifff = Module["dynCall_iifff"] = createExportWrapper("dynCall_iifff");

/** @type {function(...*):?} */
var dynCall_viiifiii = Module["dynCall_viiifiii"] = createExportWrapper("dynCall_viiifiii");

/** @type {function(...*):?} */
var dynCall_viiiffii = Module["dynCall_viiiffii"] = createExportWrapper("dynCall_viiiffii");

/** @type {function(...*):?} */
var dynCall_iif = Module["dynCall_iif"] = createExportWrapper("dynCall_iif");

/** @type {function(...*):?} */
var dynCall_viij = Module["dynCall_viij"] = createExportWrapper("dynCall_viij");

/** @type {function(...*):?} */
var dynCall_viijijj = Module["dynCall_viijijj"] = createExportWrapper("dynCall_viijijj");

/** @type {function(...*):?} */
var dynCall_viijj = Module["dynCall_viijj"] = createExportWrapper("dynCall_viijj");

/** @type {function(...*):?} */
var dynCall_viiiij = Module["dynCall_viiiij"] = createExportWrapper("dynCall_viiiij");

/** @type {function(...*):?} */
var dynCall_iiij = Module["dynCall_iiij"] = createExportWrapper("dynCall_iiij");

/** @type {function(...*):?} */
var dynCall_vid = Module["dynCall_vid"] = createExportWrapper("dynCall_vid");

/** @type {function(...*):?} */
var dynCall_vf = Module["dynCall_vf"] = createExportWrapper("dynCall_vf");

/** @type {function(...*):?} */
var dynCall_vffff = Module["dynCall_vffff"] = createExportWrapper("dynCall_vffff");

/** @type {function(...*):?} */
var dynCall_vff = Module["dynCall_vff"] = createExportWrapper("dynCall_vff");

/** @type {function(...*):?} */
var dynCall_viiiiifi = Module["dynCall_viiiiifi"] = createExportWrapper("dynCall_viiiiifi");

/** @type {function(...*):?} */
var dynCall_viiiiiji = Module["dynCall_viiiiiji"] = createExportWrapper("dynCall_viiiiiji");

/** @type {function(...*):?} */
var dynCall_viiiiiif = Module["dynCall_viiiiiif"] = createExportWrapper("dynCall_viiiiiif");

/** @type {function(...*):?} */
var dynCall_viiiiif = Module["dynCall_viiiiif"] = createExportWrapper("dynCall_viiiiif");

/** @type {function(...*):?} */
var dynCall_viffii = Module["dynCall_viffii"] = createExportWrapper("dynCall_viffii");

/** @type {function(...*):?} */
var dynCall_viiiiiiiiiiiiiiiiii = Module["dynCall_viiiiiiiiiiiiiiiiii"] = createExportWrapper("dynCall_viiiiiiiiiiiiiiiiii");

/** @type {function(...*):?} */
var dynCall_vifff = Module["dynCall_vifff"] = createExportWrapper("dynCall_vifff");

/** @type {function(...*):?} */
var dynCall_viifff = Module["dynCall_viifff"] = createExportWrapper("dynCall_viifff");

/** @type {function(...*):?} */
var dynCall_vij = Module["dynCall_vij"] = createExportWrapper("dynCall_vij");

/** @type {function(...*):?} */
var dynCall_vfff = Module["dynCall_vfff"] = createExportWrapper("dynCall_vfff");

/** @type {function(...*):?} */
var dynCall_ff = Module["dynCall_ff"] = createExportWrapper("dynCall_ff");


function invoke_ii(index,a1) {
  var sp = stackSave();
  try {
    return dynCall_ii(index,a1);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_vii(index,a1,a2) {
  var sp = stackSave();
  try {
    dynCall_vii(index,a1,a2);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_v(index) {
  var sp = stackSave();
  try {
    dynCall_v(index);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_iii(index,a1,a2) {
  var sp = stackSave();
  try {
    return dynCall_iii(index,a1,a2);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_vi(index,a1) {
  var sp = stackSave();
  try {
    dynCall_vi(index,a1);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_iiii(index,a1,a2,a3) {
  var sp = stackSave();
  try {
    return dynCall_iiii(index,a1,a2,a3);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_iiiii(index,a1,a2,a3,a4) {
  var sp = stackSave();
  try {
    return dynCall_iiiii(index,a1,a2,a3,a4);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_iiiiii(index,a1,a2,a3,a4,a5) {
  var sp = stackSave();
  try {
    return dynCall_iiiiii(index,a1,a2,a3,a4,a5);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_viii(index,a1,a2,a3) {
  var sp = stackSave();
  try {
    dynCall_viii(index,a1,a2,a3);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_i(index) {
  var sp = stackSave();
  try {
    return dynCall_i(index);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_viiii(index,a1,a2,a3,a4) {
  var sp = stackSave();
  try {
    dynCall_viiii(index,a1,a2,a3,a4);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_iiiiiii(index,a1,a2,a3,a4,a5,a6) {
  var sp = stackSave();
  try {
    return dynCall_iiiiiii(index,a1,a2,a3,a4,a5,a6);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_iiiiiiii(index,a1,a2,a3,a4,a5,a6,a7) {
  var sp = stackSave();
  try {
    return dynCall_iiiiiiii(index,a1,a2,a3,a4,a5,a6,a7);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_iiiiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10) {
  var sp = stackSave();
  try {
    return dynCall_iiiiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_viiiiiii(index,a1,a2,a3,a4,a5,a6,a7) {
  var sp = stackSave();
  try {
    dynCall_viiiiiii(index,a1,a2,a3,a4,a5,a6,a7);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_viiiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10) {
  var sp = stackSave();
  try {
    dynCall_viiiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_viiiiii(index,a1,a2,a3,a4,a5,a6) {
  var sp = stackSave();
  try {
    dynCall_viiiiii(index,a1,a2,a3,a4,a5,a6);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_viiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8) {
  var sp = stackSave();
  try {
    dynCall_viiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_viiiii(index,a1,a2,a3,a4,a5) {
  var sp = stackSave();
  try {
    dynCall_viiiii(index,a1,a2,a3,a4,a5);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_iiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8) {
  var sp = stackSave();
  try {
    return dynCall_iiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_viifi(index,a1,a2,a3,a4) {
  var sp = stackSave();
  try {
    dynCall_viifi(index,a1,a2,a3,a4);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_dii(index,a1,a2) {
  var sp = stackSave();
  try {
    return dynCall_dii(index,a1,a2);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_viiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9) {
  var sp = stackSave();
  try {
    dynCall_viiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_iiiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9) {
  var sp = stackSave();
  try {
    return dynCall_iiiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_iij(index,a1,a2,a3) {
  var sp = stackSave();
  try {
    return dynCall_iij(index,a1,a2,a3);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_iiijiii(index,a1,a2,a3,a4,a5,a6,a7) {
  var sp = stackSave();
  try {
    return dynCall_iiijiii(index,a1,a2,a3,a4,a5,a6,a7);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_jii(index,a1,a2) {
  var sp = stackSave();
  try {
    return dynCall_jii(index,a1,a2);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_j(index) {
  var sp = stackSave();
  try {
    return dynCall_j(index);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_iji(index,a1,a2,a3) {
  var sp = stackSave();
  try {
    return dynCall_iji(index,a1,a2,a3);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_jjji(index,a1,a2,a3,a4,a5) {
  var sp = stackSave();
  try {
    return dynCall_jjji(index,a1,a2,a3,a4,a5);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_iiiijii(index,a1,a2,a3,a4,a5,a6,a7) {
  var sp = stackSave();
  try {
    return dynCall_iiiijii(index,a1,a2,a3,a4,a5,a6,a7);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_ijji(index,a1,a2,a3,a4,a5) {
  var sp = stackSave();
  try {
    return dynCall_ijji(index,a1,a2,a3,a4,a5);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_jiji(index,a1,a2,a3,a4) {
  var sp = stackSave();
  try {
    return dynCall_jiji(index,a1,a2,a3,a4);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_iijji(index,a1,a2,a3,a4,a5,a6) {
  var sp = stackSave();
  try {
    return dynCall_iijji(index,a1,a2,a3,a4,a5,a6);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_iijii(index,a1,a2,a3,a4,a5) {
  var sp = stackSave();
  try {
    return dynCall_iijii(index,a1,a2,a3,a4,a5);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_jijii(index,a1,a2,a3,a4,a5) {
  var sp = stackSave();
  try {
    return dynCall_jijii(index,a1,a2,a3,a4,a5);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_viji(index,a1,a2,a3,a4) {
  var sp = stackSave();
  try {
    dynCall_viji(index,a1,a2,a3,a4);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_jiiiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10) {
  var sp = stackSave();
  try {
    return dynCall_jiiiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_jiiiii(index,a1,a2,a3,a4,a5) {
  var sp = stackSave();
  try {
    return dynCall_jiiiii(index,a1,a2,a3,a4,a5);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_jiii(index,a1,a2,a3) {
  var sp = stackSave();
  try {
    return dynCall_jiii(index,a1,a2,a3);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_vijiii(index,a1,a2,a3,a4,a5,a6) {
  var sp = stackSave();
  try {
    dynCall_vijiii(index,a1,a2,a3,a4,a5,a6);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_vjjjiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10) {
  var sp = stackSave();
  try {
    dynCall_vjjjiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_vjiiiii(index,a1,a2,a3,a4,a5,a6,a7) {
  var sp = stackSave();
  try {
    dynCall_vjiiiii(index,a1,a2,a3,a4,a5,a6,a7);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_viiji(index,a1,a2,a3,a4,a5) {
  var sp = stackSave();
  try {
    dynCall_viiji(index,a1,a2,a3,a4,a5);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_iiji(index,a1,a2,a3,a4) {
  var sp = stackSave();
  try {
    return dynCall_iiji(index,a1,a2,a3,a4);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0) throw e;
    _setThrew(1, 0);
  }
}




// === Auto-generated postamble setup entry stuff ===

unexportedRuntimeFunction('intArrayFromString', false);
unexportedRuntimeFunction('intArrayToString', false);
Module["ccall"] = ccall;
Module["cwrap"] = cwrap;
unexportedRuntimeFunction('setValue', false);
unexportedRuntimeFunction('getValue', false);
unexportedRuntimeFunction('allocate', false);
unexportedRuntimeFunction('UTF8ArrayToString', false);
unexportedRuntimeFunction('UTF8ToString', false);
unexportedRuntimeFunction('stringToUTF8Array', false);
unexportedRuntimeFunction('stringToUTF8', false);
unexportedRuntimeFunction('lengthBytesUTF8', false);
Module["stackTrace"] = stackTrace;
unexportedRuntimeFunction('addOnPreRun', false);
unexportedRuntimeFunction('addOnInit', false);
unexportedRuntimeFunction('addOnPreMain', false);
unexportedRuntimeFunction('addOnExit', false);
unexportedRuntimeFunction('addOnPostRun', false);
unexportedRuntimeFunction('writeStringToMemory', false);
unexportedRuntimeFunction('writeArrayToMemory', false);
unexportedRuntimeFunction('writeAsciiToMemory', false);
Module["addRunDependency"] = addRunDependency;
Module["removeRunDependency"] = removeRunDependency;
unexportedRuntimeFunction('FS_createFolder', false);
Module["FS_createPath"] = FS.createPath;
Module["FS_createDataFile"] = FS.createDataFile;
unexportedRuntimeFunction('FS_createPreloadedFile', true);
unexportedRuntimeFunction('FS_createLazyFile', true);
unexportedRuntimeFunction('FS_createLink', false);
unexportedRuntimeFunction('FS_createDevice', true);
unexportedRuntimeFunction('FS_unlink', true);
unexportedRuntimeFunction('getLEB', false);
unexportedRuntimeFunction('getFunctionTables', false);
unexportedRuntimeFunction('alignFunctionTables', false);
unexportedRuntimeFunction('registerFunctions', false);
unexportedRuntimeFunction('addFunction', false);
unexportedRuntimeFunction('removeFunction', false);
unexportedRuntimeFunction('getFuncWrapper', false);
unexportedRuntimeFunction('prettyPrint', false);
unexportedRuntimeFunction('dynCall', false);
unexportedRuntimeFunction('getCompilerSetting', false);
unexportedRuntimeFunction('print', false);
unexportedRuntimeFunction('printErr', false);
unexportedRuntimeFunction('getTempRet0', false);
unexportedRuntimeFunction('setTempRet0', false);
unexportedRuntimeFunction('callMain', false);
unexportedRuntimeFunction('abort', false);
unexportedRuntimeFunction('keepRuntimeAlive', false);
unexportedRuntimeFunction('zeroMemory', false);
unexportedRuntimeFunction('stringToNewUTF8', false);
unexportedRuntimeFunction('emscripten_realloc_buffer', false);
unexportedRuntimeFunction('ENV', false);
unexportedRuntimeFunction('ERRNO_CODES', false);
unexportedRuntimeFunction('ERRNO_MESSAGES', false);
unexportedRuntimeFunction('setErrNo', false);
unexportedRuntimeFunction('inetPton4', false);
unexportedRuntimeFunction('inetNtop4', false);
unexportedRuntimeFunction('inetPton6', false);
unexportedRuntimeFunction('inetNtop6', false);
unexportedRuntimeFunction('readSockaddr', false);
unexportedRuntimeFunction('writeSockaddr', false);
unexportedRuntimeFunction('DNS', false);
unexportedRuntimeFunction('getHostByName', false);
unexportedRuntimeFunction('Protocols', false);
unexportedRuntimeFunction('Sockets', false);
unexportedRuntimeFunction('getRandomDevice', false);
unexportedRuntimeFunction('traverseStack', false);
unexportedRuntimeFunction('UNWIND_CACHE', false);
unexportedRuntimeFunction('convertPCtoSourceLocation', false);
unexportedRuntimeFunction('readAsmConstArgsArray', false);
unexportedRuntimeFunction('readAsmConstArgs', false);
unexportedRuntimeFunction('mainThreadEM_ASM', false);
unexportedRuntimeFunction('jstoi_q', false);
unexportedRuntimeFunction('jstoi_s', false);
unexportedRuntimeFunction('getExecutableName', false);
unexportedRuntimeFunction('listenOnce', false);
unexportedRuntimeFunction('autoResumeAudioContext', false);
unexportedRuntimeFunction('dynCallLegacy', false);
unexportedRuntimeFunction('getDynCaller', false);
unexportedRuntimeFunction('dynCall', false);
unexportedRuntimeFunction('handleException', false);
unexportedRuntimeFunction('runtimeKeepalivePush', false);
unexportedRuntimeFunction('runtimeKeepalivePop', false);
unexportedRuntimeFunction('callUserCallback', false);
unexportedRuntimeFunction('maybeExit', false);
unexportedRuntimeFunction('safeSetTimeout', false);
unexportedRuntimeFunction('asmjsMangle', false);
unexportedRuntimeFunction('asyncLoad', false);
unexportedRuntimeFunction('alignMemory', false);
unexportedRuntimeFunction('mmapAlloc', false);
unexportedRuntimeFunction('reallyNegative', false);
unexportedRuntimeFunction('unSign', false);
unexportedRuntimeFunction('reSign', false);
unexportedRuntimeFunction('formatString', false);
unexportedRuntimeFunction('PATH', false);
unexportedRuntimeFunction('PATH_FS', false);
unexportedRuntimeFunction('SYSCALLS', false);
unexportedRuntimeFunction('getSocketFromFD', false);
unexportedRuntimeFunction('getSocketAddress', false);
unexportedRuntimeFunction('JSEvents', false);
unexportedRuntimeFunction('registerKeyEventCallback', false);
unexportedRuntimeFunction('specialHTMLTargets', false);
unexportedRuntimeFunction('maybeCStringToJsString', false);
unexportedRuntimeFunction('findEventTarget', false);
unexportedRuntimeFunction('findCanvasEventTarget', false);
unexportedRuntimeFunction('getBoundingClientRect', false);
unexportedRuntimeFunction('fillMouseEventData', false);
unexportedRuntimeFunction('registerMouseEventCallback', false);
unexportedRuntimeFunction('registerWheelEventCallback', false);
unexportedRuntimeFunction('registerUiEventCallback', false);
unexportedRuntimeFunction('registerFocusEventCallback', false);
unexportedRuntimeFunction('fillDeviceOrientationEventData', false);
unexportedRuntimeFunction('registerDeviceOrientationEventCallback', false);
unexportedRuntimeFunction('fillDeviceMotionEventData', false);
unexportedRuntimeFunction('registerDeviceMotionEventCallback', false);
unexportedRuntimeFunction('screenOrientation', false);
unexportedRuntimeFunction('fillOrientationChangeEventData', false);
unexportedRuntimeFunction('registerOrientationChangeEventCallback', false);
unexportedRuntimeFunction('fillFullscreenChangeEventData', false);
unexportedRuntimeFunction('registerFullscreenChangeEventCallback', false);
unexportedRuntimeFunction('registerRestoreOldStyle', false);
unexportedRuntimeFunction('hideEverythingExceptGivenElement', false);
unexportedRuntimeFunction('restoreHiddenElements', false);
unexportedRuntimeFunction('setLetterbox', false);
unexportedRuntimeFunction('currentFullscreenStrategy', false);
unexportedRuntimeFunction('restoreOldWindowedStyle', false);
unexportedRuntimeFunction('softFullscreenResizeWebGLRenderTarget', false);
unexportedRuntimeFunction('doRequestFullscreen', false);
unexportedRuntimeFunction('fillPointerlockChangeEventData', false);
unexportedRuntimeFunction('registerPointerlockChangeEventCallback', false);
unexportedRuntimeFunction('registerPointerlockErrorEventCallback', false);
unexportedRuntimeFunction('requestPointerLock', false);
unexportedRuntimeFunction('fillVisibilityChangeEventData', false);
unexportedRuntimeFunction('registerVisibilityChangeEventCallback', false);
unexportedRuntimeFunction('registerTouchEventCallback', false);
unexportedRuntimeFunction('fillGamepadEventData', false);
unexportedRuntimeFunction('registerGamepadEventCallback', false);
unexportedRuntimeFunction('registerBeforeUnloadEventCallback', false);
unexportedRuntimeFunction('fillBatteryEventData', false);
unexportedRuntimeFunction('battery', false);
unexportedRuntimeFunction('registerBatteryEventCallback', false);
unexportedRuntimeFunction('setCanvasElementSize', false);
unexportedRuntimeFunction('getCanvasElementSize', false);
unexportedRuntimeFunction('demangle', false);
unexportedRuntimeFunction('demangleAll', false);
unexportedRuntimeFunction('jsStackTrace', false);
Module["stackTrace"] = stackTrace;
unexportedRuntimeFunction('getEnvStrings', false);
unexportedRuntimeFunction('checkWasiClock', false);
unexportedRuntimeFunction('writeI53ToI64', false);
unexportedRuntimeFunction('writeI53ToI64Clamped', false);
unexportedRuntimeFunction('writeI53ToI64Signaling', false);
unexportedRuntimeFunction('writeI53ToU64Clamped', false);
unexportedRuntimeFunction('writeI53ToU64Signaling', false);
unexportedRuntimeFunction('readI53FromI64', false);
unexportedRuntimeFunction('readI53FromU64', false);
unexportedRuntimeFunction('convertI32PairToI53', false);
unexportedRuntimeFunction('convertU32PairToI53', false);
unexportedRuntimeFunction('setImmediateWrapped', false);
unexportedRuntimeFunction('clearImmediateWrapped', false);
unexportedRuntimeFunction('polyfillSetImmediate', false);
unexportedRuntimeFunction('uncaughtExceptionCount', false);
unexportedRuntimeFunction('exceptionLast', false);
unexportedRuntimeFunction('exceptionCaught', false);
unexportedRuntimeFunction('ExceptionInfo', false);
unexportedRuntimeFunction('CatchInfo', false);
unexportedRuntimeFunction('exception_addRef', false);
unexportedRuntimeFunction('exception_decRef', false);
unexportedRuntimeFunction('formatException', false);
unexportedRuntimeFunction('Browser', false);
unexportedRuntimeFunction('funcWrappers', false);
unexportedRuntimeFunction('getFuncWrapper', false);
unexportedRuntimeFunction('setMainLoop', false);
unexportedRuntimeFunction('wget', false);
unexportedRuntimeFunction('FS', false);
unexportedRuntimeFunction('MEMFS', false);
unexportedRuntimeFunction('TTY', false);
unexportedRuntimeFunction('PIPEFS', false);
unexportedRuntimeFunction('SOCKFS', false);
unexportedRuntimeFunction('_setNetworkCallback', false);
unexportedRuntimeFunction('tempFixedLengthArray', false);
unexportedRuntimeFunction('miniTempWebGLFloatBuffers', false);
unexportedRuntimeFunction('heapObjectForWebGLType', false);
unexportedRuntimeFunction('heapAccessShiftForWebGLHeap', false);
unexportedRuntimeFunction('GL', false);
unexportedRuntimeFunction('emscriptenWebGLGet', false);
unexportedRuntimeFunction('computeUnpackAlignedImageSize', false);
unexportedRuntimeFunction('emscriptenWebGLGetTexPixelData', false);
unexportedRuntimeFunction('emscriptenWebGLGetUniform', false);
unexportedRuntimeFunction('webglGetUniformLocation', false);
unexportedRuntimeFunction('webglPrepareUniformLocationsBeforeFirstUse', false);
unexportedRuntimeFunction('webglGetLeftBracePos', false);
unexportedRuntimeFunction('emscriptenWebGLGetVertexAttrib', false);
unexportedRuntimeFunction('webglApplyExplicitProgramBindings', false);
unexportedRuntimeFunction('emscriptenWebGLGetBufferBinding', false);
unexportedRuntimeFunction('emscriptenWebGLValidateMapBufferTarget', false);
unexportedRuntimeFunction('writeGLArray', false);
unexportedRuntimeFunction('AL', false);
unexportedRuntimeFunction('SDL_unicode', false);
unexportedRuntimeFunction('SDL_ttfContext', false);
unexportedRuntimeFunction('SDL_audio', false);
unexportedRuntimeFunction('SDL', false);
unexportedRuntimeFunction('SDL_gfx', false);
unexportedRuntimeFunction('GLUT', false);
unexportedRuntimeFunction('EGL', false);
unexportedRuntimeFunction('GLFW_Window', false);
unexportedRuntimeFunction('GLFW', false);
unexportedRuntimeFunction('GLEW', false);
unexportedRuntimeFunction('IDBStore', false);
unexportedRuntimeFunction('runAndAbortIfError', false);
unexportedRuntimeFunction('emscriptenWebGLGetIndexed', false);
unexportedRuntimeFunction('remove_cpp_comments_in_shaders', false);
unexportedRuntimeFunction('find_closing_parens_index', false);
unexportedRuntimeFunction('preprocess_c_code', false);
unexportedRuntimeFunction('WEBAudio', false);
unexportedRuntimeFunction('WEBAudio__user', false);
unexportedRuntimeFunction('jsAudioAddPendingBlockedAudio', false);
unexportedRuntimeFunction('jsAudioAddPendingBlockedAudio__user', false);
unexportedRuntimeFunction('jsAudioPlayPendingBlockedAudio', false);
unexportedRuntimeFunction('jsAudioPlayPendingBlockedAudio__user', false);
unexportedRuntimeFunction('jsAudioPlayBlockedAudios', false);
unexportedRuntimeFunction('jsAudioPlayBlockedAudios__user', false);
unexportedRuntimeFunction('jsAudioMixinSetPitch', false);
unexportedRuntimeFunction('jsAudioMixinSetPitch__user', false);
unexportedRuntimeFunction('jsAudioGetMimeTypeFromType', false);
unexportedRuntimeFunction('jsAudioGetMimeTypeFromType__user', false);
unexportedRuntimeFunction('jsAudioCreateCompressedSoundClip', false);
unexportedRuntimeFunction('jsAudioCreateCompressedSoundClip__user', false);
unexportedRuntimeFunction('jsAudioCreateUncompressedSoundClip', false);
unexportedRuntimeFunction('jsAudioCreateUncompressedSoundClip__user', false);
unexportedRuntimeFunction('jsAudioCreateUncompressedSoundClipFromPCM', false);
unexportedRuntimeFunction('jsAudioCreateUncompressedSoundClipFromPCM__user', false);
unexportedRuntimeFunction('jsAudioCreateUncompressedSoundClipFromCompressedAudio', false);
unexportedRuntimeFunction('jsAudioCreateUncompressedSoundClipFromCompressedAudio__user', false);
unexportedRuntimeFunction('jsAudioCreateChannel', false);
unexportedRuntimeFunction('jsAudioCreateChannel__user', false);
unexportedRuntimeFunction('registerTouchEventCallback__user', false);
unexportedRuntimeFunction('dlopen_main_init', false);
unexportedRuntimeFunction('dlopen_main_init__user', false);
unexportedRuntimeFunction('jsDomCssEscapeId', false);
unexportedRuntimeFunction('jsDomCssEscapeId__user', false);
unexportedRuntimeFunction('jsCanvasSelector', false);
unexportedRuntimeFunction('jsCanvasSelector__user', false);
unexportedRuntimeFunction('fs', false);
unexportedRuntimeFunction('fs__user', false);
unexportedRuntimeFunction('ExceptionsSeen', false);
unexportedRuntimeFunction('ExceptionsSeen__user', false);
unexportedRuntimeFunction('IDBFS', false);
unexportedRuntimeFunction('mobile_input', false);
unexportedRuntimeFunction('mobile_input__user', false);
unexportedRuntimeFunction('mobile_input_text', false);
unexportedRuntimeFunction('mobile_input_text__user', false);
unexportedRuntimeFunction('mobile_input_hide_delay', false);
unexportedRuntimeFunction('mobile_input_hide_delay__user', false);
unexportedRuntimeFunction('mobile_input_ignore_blur_event', false);
unexportedRuntimeFunction('mobile_input_ignore_blur_event__user', false);
unexportedRuntimeFunction('JS_ScreenOrientation_callback', false);
unexportedRuntimeFunction('JS_ScreenOrientation_callback__user', false);
unexportedRuntimeFunction('JS_ScreenOrientation_eventHandler', false);
unexportedRuntimeFunction('JS_ScreenOrientation_eventHandler__user', false);
unexportedRuntimeFunction('JS_ScreenOrientation_requestedLockType', false);
unexportedRuntimeFunction('JS_ScreenOrientation_requestedLockType__user', false);
unexportedRuntimeFunction('JS_ScreenOrientation_appliedLockType', false);
unexportedRuntimeFunction('JS_ScreenOrientation_appliedLockType__user', false);
unexportedRuntimeFunction('JS_ScreenOrientation_timeoutID', false);
unexportedRuntimeFunction('JS_ScreenOrientation_timeoutID__user', false);
unexportedRuntimeFunction('JS_OrientationSensor_frequencyRequest', false);
unexportedRuntimeFunction('JS_OrientationSensor_frequencyRequest__user', false);
unexportedRuntimeFunction('JS_OrientationSensor_callback', false);
unexportedRuntimeFunction('JS_OrientationSensor_callback__user', false);
unexportedRuntimeFunction('JS_OrientationSensor', false);
unexportedRuntimeFunction('JS_OrientationSensor__user', false);
unexportedRuntimeFunction('JS_Accelerometer_frequencyRequest', false);
unexportedRuntimeFunction('JS_Accelerometer_frequencyRequest__user', false);
unexportedRuntimeFunction('JS_Accelerometer_callback', false);
unexportedRuntimeFunction('JS_Accelerometer_callback__user', false);
unexportedRuntimeFunction('JS_Accelerometer', false);
unexportedRuntimeFunction('JS_Accelerometer__user', false);
unexportedRuntimeFunction('JS_Accelerometer_multiplier', false);
unexportedRuntimeFunction('JS_Accelerometer_multiplier__user', false);
unexportedRuntimeFunction('JS_LinearAccelerationSensor_frequencyRequest', false);
unexportedRuntimeFunction('JS_LinearAccelerationSensor_frequencyRequest__user', false);
unexportedRuntimeFunction('JS_LinearAccelerationSensor_callback', false);
unexportedRuntimeFunction('JS_LinearAccelerationSensor_callback__user', false);
unexportedRuntimeFunction('JS_LinearAccelerationSensor', false);
unexportedRuntimeFunction('JS_LinearAccelerationSensor__user', false);
unexportedRuntimeFunction('JS_GravitySensor_frequencyRequest', false);
unexportedRuntimeFunction('JS_GravitySensor_frequencyRequest__user', false);
unexportedRuntimeFunction('JS_GravitySensor_callback', false);
unexportedRuntimeFunction('JS_GravitySensor_callback__user', false);
unexportedRuntimeFunction('JS_GravitySensor', false);
unexportedRuntimeFunction('JS_GravitySensor__user', false);
unexportedRuntimeFunction('JS_Accelerometer_frequency', false);
unexportedRuntimeFunction('JS_Accelerometer_frequency__user', false);
unexportedRuntimeFunction('JS_Accelerometer_lastValue', false);
unexportedRuntimeFunction('JS_Accelerometer_lastValue__user', false);
unexportedRuntimeFunction('JS_LinearAccelerationSensor_frequency', false);
unexportedRuntimeFunction('JS_LinearAccelerationSensor_frequency__user', false);
unexportedRuntimeFunction('JS_Gyroscope_frequencyRequest', false);
unexportedRuntimeFunction('JS_Gyroscope_frequencyRequest__user', false);
unexportedRuntimeFunction('JS_Gyroscope_callback', false);
unexportedRuntimeFunction('JS_Gyroscope_callback__user', false);
unexportedRuntimeFunction('JS_Gyroscope', false);
unexportedRuntimeFunction('JS_Gyroscope__user', false);
unexportedRuntimeFunction('JS_DeviceSensorPermissions', false);
unexportedRuntimeFunction('JS_DeviceSensorPermissions__user', false);
unexportedRuntimeFunction('JS_DefineAccelerometerMultiplier', false);
unexportedRuntimeFunction('JS_DefineAccelerometerMultiplier__user', false);
unexportedRuntimeFunction('JS_RequestDeviceSensorPermissions', false);
unexportedRuntimeFunction('JS_RequestDeviceSensorPermissions__user', false);
unexportedRuntimeFunction('JS_OrientationSensor_eventHandler', false);
unexportedRuntimeFunction('JS_OrientationSensor_eventHandler__user', false);
unexportedRuntimeFunction('JS_Accelerometer_eventHandler', false);
unexportedRuntimeFunction('JS_Accelerometer_eventHandler__user', false);
unexportedRuntimeFunction('JS_ComputeGravity', false);
unexportedRuntimeFunction('JS_ComputeGravity__user', false);
unexportedRuntimeFunction('JS_LinearAccelerationSensor_eventHandler', false);
unexportedRuntimeFunction('JS_LinearAccelerationSensor_eventHandler__user', false);
unexportedRuntimeFunction('JS_GravitySensor_eventHandler', false);
unexportedRuntimeFunction('JS_GravitySensor_eventHandler__user', false);
unexportedRuntimeFunction('JS_Gyroscope_eventHandler', false);
unexportedRuntimeFunction('JS_Gyroscope_eventHandler__user', false);
unexportedRuntimeFunction('JS_DeviceOrientation_eventHandler', false);
unexportedRuntimeFunction('JS_DeviceOrientation_eventHandler__user', false);
unexportedRuntimeFunction('JS_DeviceMotion_eventHandler', false);
unexportedRuntimeFunction('JS_DeviceMotion_eventHandler__user', false);
unexportedRuntimeFunction('JS_DeviceMotion_add', false);
unexportedRuntimeFunction('JS_DeviceMotion_add__user', false);
unexportedRuntimeFunction('JS_DeviceMotion_remove', false);
unexportedRuntimeFunction('JS_DeviceMotion_remove__user', false);
unexportedRuntimeFunction('UNETWebSocketsInstances', false);
unexportedRuntimeFunction('UNETWebSocketsInstances__user', false);
unexportedRuntimeFunction('videoInstances', false);
unexportedRuntimeFunction('videoInstances__user', false);
unexportedRuntimeFunction('videoInstanceIdCounter', false);
unexportedRuntimeFunction('videoInstanceIdCounter__user', false);
unexportedRuntimeFunction('hasSRGBATextures', false);
unexportedRuntimeFunction('hasSRGBATextures__user', false);
unexportedRuntimeFunction('s2lTexture', false);
unexportedRuntimeFunction('s2lTexture__user', false);
unexportedRuntimeFunction('s2lFBO', false);
unexportedRuntimeFunction('s2lFBO__user', false);
unexportedRuntimeFunction('s2lVBO', false);
unexportedRuntimeFunction('s2lVBO__user', false);
unexportedRuntimeFunction('s2lProgram', false);
unexportedRuntimeFunction('s2lProgram__user', false);
unexportedRuntimeFunction('s2lVertexPositionNDC', false);
unexportedRuntimeFunction('s2lVertexPositionNDC__user', false);
unexportedRuntimeFunction('jsVideoEnded', false);
unexportedRuntimeFunction('jsVideoEnded__user', false);
unexportedRuntimeFunction('jsVideoAllAudioTracksAreDisabled', false);
unexportedRuntimeFunction('jsVideoAllAudioTracksAreDisabled__user', false);
unexportedRuntimeFunction('jsVideoPendingBlockedVideos', false);
unexportedRuntimeFunction('jsVideoPendingBlockedVideos__user', false);
unexportedRuntimeFunction('jsVideoAddPendingBlockedVideo', false);
unexportedRuntimeFunction('jsVideoAddPendingBlockedVideo__user', false);
unexportedRuntimeFunction('jsVideoPlayPendingBlockedVideo', false);
unexportedRuntimeFunction('jsVideoPlayPendingBlockedVideo__user', false);
unexportedRuntimeFunction('jsVideoRemovePendingBlockedVideo', false);
unexportedRuntimeFunction('jsVideoRemovePendingBlockedVideo__user', false);
unexportedRuntimeFunction('jsVideoAttemptToPlayBlockedVideos', false);
unexportedRuntimeFunction('jsVideoAttemptToPlayBlockedVideos__user', false);
unexportedRuntimeFunction('jsVideoCreateTexture2D', false);
unexportedRuntimeFunction('jsVideoCreateTexture2D__user', false);
unexportedRuntimeFunction('jsSupportedVideoFormats', false);
unexportedRuntimeFunction('jsSupportedVideoFormats__user', false);
unexportedRuntimeFunction('jsUnsupportedVideoFormats', false);
unexportedRuntimeFunction('jsUnsupportedVideoFormats__user', false);
unexportedRuntimeFunction('activeWebCams', false);
unexportedRuntimeFunction('activeWebCams__user', false);
unexportedRuntimeFunction('cameraAccess', false);
unexportedRuntimeFunction('cameraAccess__user', false);
unexportedRuntimeFunction('wr', false);
unexportedRuntimeFunction('wr__user', false);
unexportedRuntimeFunction('jsWebRequestGetResponseHeaderString', false);
unexportedRuntimeFunction('jsWebRequestGetResponseHeaderString__user', false);
unexportedRuntimeFunction('warnOnce', false);
unexportedRuntimeFunction('stackSave', false);
unexportedRuntimeFunction('stackRestore', false);
unexportedRuntimeFunction('stackAlloc', false);
unexportedRuntimeFunction('AsciiToString', false);
unexportedRuntimeFunction('stringToAscii', false);
unexportedRuntimeFunction('UTF16ToString', false);
unexportedRuntimeFunction('stringToUTF16', false);
unexportedRuntimeFunction('lengthBytesUTF16', false);
unexportedRuntimeFunction('UTF32ToString', false);
unexportedRuntimeFunction('stringToUTF32', false);
unexportedRuntimeFunction('lengthBytesUTF32', false);
unexportedRuntimeFunction('allocateUTF8', false);
unexportedRuntimeFunction('allocateUTF8OnStack', false);
Module["writeStackCookie"] = writeStackCookie;
Module["checkStackCookie"] = checkStackCookie;
unexportedRuntimeSymbol('ALLOC_NORMAL', false);
unexportedRuntimeSymbol('ALLOC_STACK', false);

var calledRun;

/**
 * @constructor
 * @this {ExitStatus}
 */
function ExitStatus(status) {
  this.name = "ExitStatus";
  this.message = "Program terminated with exit(" + status + ")";
  this.status = status;
}

var calledMain = false;

dependenciesFulfilled = function runCaller() {
  // If run has never been called, and we should call run (INVOKE_RUN is true, and Module.noInitialRun is not false)
  if (!calledRun) run();
  if (!calledRun) dependenciesFulfilled = runCaller; // try this again later, after new deps are fulfilled
};

function callMain(args) {
  assert(runDependencies == 0, 'cannot call main when async dependencies remain! (listen on Module["onRuntimeInitialized"])');
  assert(__ATPRERUN__.length == 0, 'cannot call main when preRun functions remain to be called');

  var entryFunction = Module['_main'];

  args = args || [];

  var argc = args.length+1;
  var argv = stackAlloc((argc + 1) * 4);
  HEAP32[argv >> 2] = allocateUTF8OnStack(thisProgram);
  for (var i = 1; i < argc; i++) {
    HEAP32[(argv >> 2) + i] = allocateUTF8OnStack(args[i - 1]);
  }
  HEAP32[(argv >> 2) + argc] = 0;

  try {

    var ret = entryFunction(argc, argv);

    // In PROXY_TO_PTHREAD builds, we should never exit the runtime below, as
    // execution is asynchronously handed off to a pthread.
    // if we're not running an evented main loop, it's time to exit
    exit(ret, /* implicit = */ true);
    return ret;
  }
  catch (e) {
    return handleException(e);
  } finally {
    calledMain = true;

  }
}

function stackCheckInit() {
  // This is normally called automatically during __wasm_call_ctors but need to
  // get these values before even running any of the ctors so we call it redundantly
  // here.
  // TODO(sbc): Move writeStackCookie to native to to avoid this.
  _emscripten_stack_init();
  writeStackCookie();
}

/** @type {function(Array=)} */
function run(args) {
  args = args || arguments_;

  if (runDependencies > 0) {
    return;
  }

  stackCheckInit();

  preRun();

  // a preRun added a dependency, run will be called later
  if (runDependencies > 0) {
    return;
  }

  function doRun() {
    // run may have just been called through dependencies being fulfilled just in this very frame,
    // or while the async setStatus time below was happening
    if (calledRun) return;
    calledRun = true;
    Module['calledRun'] = true;

    if (ABORT) return;

    initRuntime();

    preMain();

    readyPromiseResolve(Module);
    if (Module['onRuntimeInitialized']) Module['onRuntimeInitialized']();

    if (shouldRunNow) callMain(args);

    postRun();
  }

  if (Module['setStatus']) {
    Module['setStatus']('Running...');
    setTimeout(function() {
      setTimeout(function() {
        Module['setStatus']('');
      }, 1);
      doRun();
    }, 1);
  } else
  {
    doRun();
  }
  checkStackCookie();
}
Module['run'] = run;

function checkUnflushedContent() {
  // Compiler settings do not allow exiting the runtime, so flushing
  // the streams is not possible. but in ASSERTIONS mode we check
  // if there was something to flush, and if so tell the user they
  // should request that the runtime be exitable.
  // Normally we would not even include flush() at all, but in ASSERTIONS
  // builds we do so just for this check, and here we see if there is any
  // content to flush, that is, we check if there would have been
  // something a non-ASSERTIONS build would have not seen.
  // How we flush the streams depends on whether we are in SYSCALLS_REQUIRE_FILESYSTEM=0
  // mode (which has its own special function for this; otherwise, all
  // the code is inside libc)
  var oldOut = out;
  var oldErr = err;
  var has = false;
  out = err = (x) => {
    has = true;
  }
  try { // it doesn't matter if it fails
    ___stdio_exit();
    // also flush in the JS FS layer
    ['stdout', 'stderr'].forEach(function(name) {
      var info = FS.analyzePath('/dev/' + name);
      if (!info) return;
      var stream = info.object;
      var rdev = stream.rdev;
      var tty = TTY.ttys[rdev];
      if (tty && tty.output && tty.output.length) {
        has = true;
      }
    });
  } catch(e) {}
  out = oldOut;
  err = oldErr;
  if (has) {
    warnOnce('stdio streams had content in them that was not flushed. you should set EXIT_RUNTIME to 1 (see the FAQ), or make sure to emit a newline when you printf etc.');
  }
}

/** @param {boolean|number=} implicit */
function exit(status, implicit) {
  EXITSTATUS = status;

  checkUnflushedContent();

  // if exit() was called explicitly, warn the user if the runtime isn't actually being shut down
  if (keepRuntimeAlive() && !implicit) {
    var msg = 'program exited (with status: ' + status + '), but EXIT_RUNTIME is not set, so halting execution but not exiting the runtime or preventing further async execution (build with EXIT_RUNTIME=1, if you want a true shutdown)';
    readyPromiseReject(msg);
    err(msg);
  }

  procExit(status);
}

function procExit(code) {
  EXITSTATUS = code;
  if (!keepRuntimeAlive()) {
    if (Module['onExit']) Module['onExit'](code);
    ABORT = true;
  }
  quit_(code, new ExitStatus(code));
}

if (Module['preInit']) {
  if (typeof Module['preInit'] == 'function') Module['preInit'] = [Module['preInit']];
  while (Module['preInit'].length > 0) {
    Module['preInit'].pop()();
  }
}

// shouldRunNow refers to calling main(), not run().
var shouldRunNow = true;

if (Module['noInitialRun']) shouldRunNow = false;

run();







  return unityFramework.ready
}
);
})();
if (typeof exports === 'object' && typeof module === 'object')
  module.exports = unityFramework;
else if (typeof define === 'function' && define['amd'])
  define([], function() { return unityFramework; });
else if (typeof exports === 'object')
  exports["unityFramework"] = unityFramework;
