text: 
  
  // 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 Module !== 'undefined' ? Module : {};
  
  // --pre-jses are emitted after the Module integration code, so that they can
  // refer to Module (if they choose; they can also define Module)
  // {{PRE_JSES}}
  
  // 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 = {};
  var key;
  for (key in Module) {
    if (Module.hasOwnProperty(key)) {
      moduleOverrides[key] = Module[key];
    }
  }
  
  var arguments_ = [];
  var thisProgram = './this.program';
  var quit_ = function(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;
    var toLog = e;
    if (e && typeof e === 'object' && e.stack) {
      toLog = [e, e.stack];
    }
    err('exiting due to exception: ' + toLog);
  }
  
  var nodeFS;
  var nodePath;
  
  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
  
  
  read_ = function shell_read(filename, binary) {
    if (!nodeFS) nodeFS = require('fs');
    if (!nodePath) nodePath = require('path');
    filename = nodePath['normalize'](filename);
    return nodeFS['readFileSync'](filename, binary ? null : 'utf8');
  };
  
  readBinary = function readBinary(filename) {
    var ret = read_(filename, true);
    if (!ret.buffer) {
      ret = new Uint8Array(ret);
    }
    assert(ret.buffer);
    return ret;
  };
  
  readAsync = function readAsync(filename, onload, onerror) {
    if (!nodeFS) nodeFS = require('fs');
    if (!nodePath) nodePath = require('path');
    filename = nodePath['normalize'](filename);
    nodeFS['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);
  
    if (typeof module !== 'undefined') {
      module['exports'] = Module;
    }
  
    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_ = function(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) {
      var 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(function() { onload(readBinary(f)); }, 0);
    };
  
    if (typeof scriptArgs != 'undefined') {
      arguments_ = scriptArgs;
    } else if (typeof arguments != 'undefined') {
      arguments_ = arguments;
    }
  
    if (typeof quit === 'function') {
      quit_ = function(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;
    }
    // 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_ = function(url) {
        var xhr = new XMLHttpRequest();
        xhr.open('GET', url, false);
        xhr.send(null);
        return xhr.responseText;
    };
  
    if (ENVIRONMENT_IS_WORKER) {
      readBinary = function(url) {
          var xhr = new XMLHttpRequest();
          xhr.open('GET', url, false);
          xhr.responseType = 'arraybuffer';
          xhr.send(null);
          return new Uint8Array(/** @type{!ArrayBuffer} */(xhr.response));
      };
    }
  
    readAsync = function(url, onload, onerror) {
      var xhr = new XMLHttpRequest();
      xhr.open('GET', url, true);
      xhr.responseType = 'arraybuffer';
      xhr.onload = function() {
        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 = function(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
  for (key in moduleOverrides) {
    if (moduleOverrides.hasOwnProperty(key)) {
      Module[key] = moduleOverrides[key];
    }
  }
  // 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;
  
  // 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'];
  if (!Object.getOwnPropertyDescriptor(Module, 'arguments')) {
    Object.defineProperty(Module, 'arguments', {
      configurable: true,
      get: function() {
        abort('Module.arguments has been replaced with plain arguments_ (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)')
      }
    });
  }
  
  if (Module['thisProgram']) thisProgram = Module['thisProgram'];
  if (!Object.getOwnPropertyDescriptor(Module, 'thisProgram')) {
    Object.defineProperty(Module, 'thisProgram', {
      configurable: true,
      get: function() {
        abort('Module.thisProgram has been replaced with plain thisProgram (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)')
      }
    });
  }
  
  if (Module['quit']) quit_ = Module['quit'];
  if (!Object.getOwnPropertyDescriptor(Module, 'quit')) {
    Object.defineProperty(Module, 'quit', {
      configurable: true,
      get: function() {
        abort('Module.quit has been replaced with plain quit_ (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)')
      }
    });
  }
  
  // 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');
  
  if (!Object.getOwnPropertyDescriptor(Module, 'read')) {
    Object.defineProperty(Module, 'read', {
      configurable: true,
      get: function() {
        abort('Module.read has been replaced with plain read_ (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)')
      }
    });
  }
  
  if (!Object.getOwnPropertyDescriptor(Module, 'readAsync')) {
    Object.defineProperty(Module, 'readAsync', {
      configurable: true,
      get: function() {
        abort('Module.readAsync has been replaced with plain readAsync (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)')
      }
    });
  }
  
  if (!Object.getOwnPropertyDescriptor(Module, 'readBinary')) {
    Object.defineProperty(Module, 'readBinary', {
      configurable: true,
      get: function() {
        abort('Module.readBinary has been replaced with plain readBinary (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)')
      }
    });
  }
  
  if (!Object.getOwnPropertyDescriptor(Module, 'setWindowTitle')) {
    Object.defineProperty(Module, 'setWindowTitle', {
      configurable: true,
      get: function() {
        abort('Module.setWindowTitle has been replaced with plain setWindowTitle (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)')
      }
    });
  }
  var IDBFS = 'IDBFS is no longer included by default; build with -lidbfs.js';
  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;
  
  function getPointerSize() {
    return 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 getPointerSize();
        } else if (type[0] === 'i') {
          var 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.
  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
  
  
  // end include: runtime_debug.js
  var tempRet0 = 0;
  
  var setTempRet0 = function(value) {
    tempRet0 = value;
  };
  
  var getTempRet0 = function() {
    return 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'];
  if (!Object.getOwnPropertyDescriptor(Module, 'wasmBinary')) {
    Object.defineProperty(Module, 'wasmBinary', {
      configurable: true,
      get: function() {
        abort('Module.wasmBinary has been replaced with plain wasmBinary (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)')
      }
    });
  }
  var noExitRuntime = Module['noExitRuntime'] || true;
  if (!Object.getOwnPropertyDescriptor(Module, 'noExitRuntime')) {
    Object.defineProperty(Module, 'noExitRuntime', {
      configurable: true,
      get: function() {
        abort('Module.noExitRuntime has been replaced with plain noExitRuntime (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)')
      }
    });
  }
  
  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, noSafe) {
    type = type || 'i8';
    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, noSafe) {
    type = type || 'i8';
    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);
    }
  }
  
  // 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.
  
  var ALLOC_NORMAL = 0; // Tries to use _malloc()
  var ALLOC_STACK = 1; // Lives for the duration of the current function call
  
  // allocate(): This is for internal use. You can use it yourself as well, but the interface
  //             is a little tricky (see docs right below). The reason is that it is optimized
  //             for multiple syntaxes to save space in generated code. So you should
  //             normally not use allocate(), and instead allocate memory using _malloc(),
  //             initialize it with setValue(), and so forth.
  // @slab: An array of data.
  // @allocator: How to allocate memory, see ALLOC_*
  /** @type {function((Uint8Array|Array<number>), number)} */
  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) {
      HEAPU8.set(/** @type {!Uint8Array} */(slab), ret);
    } else {
      HEAPU8.set(new Uint8Array(slab), ret);
    }
    return ret;
  }
  
  // include: runtime_strings.js
  
  
  // runtime_strings.js: Strings related runtime functions that are part of both MINIMAL_RUNTIME and regular runtime.
  
  // 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.
  
  var UTF8Decoder = typeof TextDecoder !== 'undefined' ? new TextDecoder('utf8') : undefined;
  
  /**
   * @param {number} idx
   * @param {number=} maxBytesToRead
   * @return {string}
   */
  function UTF8ArrayToString(heap, 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 (heap[endPtr] && !(endPtr >= endIdx)) ++endPtr;
  
    if (endPtr - idx > 16 && heap.subarray && UTF8Decoder) {
      return UTF8Decoder.decode(heap.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 = heap[idx++];
        if (!(u0 & 0x80)) { str += String.fromCharCode(u0); continue; }
        var u1 = heap[idx++] & 63;
        if ((u0 & 0xE0) == 0xC0) { str += String.fromCharCode(((u0 & 31) << 6) | u1); continue; }
        var u2 = heap[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) | (heap[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
  
  function alignUp(x, multiple) {
    if (x % multiple > 0) {
      x += multiple - (x % multiple);
    }
    return x;
  }
  
  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'] || 16777216;
  if (!Object.getOwnPropertyDescriptor(Module, 'INITIAL_MEMORY')) {
    Object.defineProperty(Module, 'INITIAL_MEMORY', {
      configurable: true,
      get: function() {
        abort('Module.INITIAL_MEMORY has been replaced with plain INITIAL_MEMORY (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)')
      }
    });
  }
  
  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 == 16777216, '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 grows downwards
    HEAP32[((max + 4)>>2)] = 0x2135467
    HEAP32[((max + 8)>>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 + 4)>>2)];
    var cookie2 = HEAPU32[((max + 8)>>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) + ' ' + 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;
  var runtimeExited = false;
  var runtimeKeepaliveCounter = 0;
  
  function keepRuntimeAlive() {
    return noExitRuntime || runtimeKeepaliveCounter > 0;
  }
  
  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();
    callRuntimeCallbacks(__ATINIT__);
  }
  
  function preMain() {
    checkStackCookie();
    
    callRuntimeCallbacks(__ATMAIN__);
  }
  
  function exitRuntime() {
    checkStackCookie();
    runtimeExited = true;
  }
  
  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.
    var e = new WebAssembly.RuntimeError(what);
  
    // 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
  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');
      assert(!runtimeExited, 'native function `' + displayName + '` called after runtime exit (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
      if (!asm[name]) {
        assert(asm[name], 'exported native function `' + displayName + '` not found');
      }
      return asm[name].apply(null, arguments);
    };
  }
  
  var wasmBinaryFile;
    wasmBinaryFile = 'index.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 === 16777216);
      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) {
          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.
    if (Module['instantiateWasm']) {
      try {
        var exports = Module['instantiateWasm'](info, receiveInstance);
        return exports;
      } catch(e) {
        err('Module.instantiateWasm callback failed with error: ' + e);
        return false;
      }
    }
  
    instantiateAsync();
    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 = {
    
  };
  
  
  
  
  
  
    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) {
              getWasmTableEntry(func)();
            } else {
              getWasmTableEntry(func)(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) {
        warnOnce('warning: build with  -s DEMANGLE_SUPPORT=1  to link in libcxxabi demangling');
        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 + ']');
          });
      }
  
    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;
      }
  
    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 ___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;
      }
  
    function _atexit(func, arg) {
      }
    function ___cxa_atexit(a0,a1
    ) {
    return _atexit(a0,a1);
    }
  
    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;
        };
      }
    
    var exceptionLast = 0;
    
    var uncaughtExceptionCount = 0;
    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 + " - Exception catching is disabled, this exception cannot be caught. Compile with -s NO_DISABLE_EXCEPTION_CATCHING or -s EXCEPTION_CATCHING_ALLOWED=[..] to catch.";
      }
  
    function _abort() {
        abort('native code called abort()');
      }
  
    function _emscripten_memcpy_big(dest, src, num) {
        HEAPU8.copyWithin(dest, src, src + num);
      }
  
    function abortOnCannotGrowMemory(requestedSize) {
        abort('Cannot enlarge memory arrays to size ' + requestedSize + ' bytes (OOM). Either (1) compile with  -s INITIAL_MEMORY=X  with X higher than the current value ' + HEAP8.length + ', (2) compile with  -s ALLOW_MEMORY_GROWTH=1  which allows increasing the size at runtime, or (3) if you want malloc to return NULL (0) instead of this abort, compile with  -s ABORTING_MALLOC=0 ');
      }
    function _emscripten_resize_heap(requestedSize) {
        var oldSize = HEAPU8.length;
        requestedSize = requestedSize >>> 0;
        abortOnCannotGrowMemory(requestedSize);
      }
  
    function callUserCallback(func, synchronous) {
        if (runtimeExited || 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 runtimeKeepalivePush() {
        runtimeKeepaliveCounter += 1;
      }
    
    function runtimeKeepalivePop() {
        assert(runtimeKeepaliveCounter > 0);
        runtimeKeepaliveCounter -= 1;
      }
    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 = function img_onload() {
              assert(img.complete, 'Image ' + name + ' could not be decoded');
              var canvas = 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 = function 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);
            }
          }
        },createContext:function(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_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(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 = function() {
        var t = process['hrtime']();
        return t[0] * 1e3 + t[1] / 1e6;
      };
    } else _emscripten_get_now = function() { return performance.now(); }
    ;
    
    function _exit(status) {
        // void _exit(int status);
        // http://pubs.opengroup.org/onlinepubs/000095399/functions/exit.html
        exit(status);
      }
    function maybeExit() {
        if (!keepRuntimeAlive()) {
          try {
            _exit(EXITSTATUS);
          } catch (e) {
            handleException(e);
          }
        }
      }
    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.
    
          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';
        }
      }
    function _emscripten_set_main_loop_arg(func, arg, fps, simulateInfiniteLoop) {
        var browserIterationFunc = function() { getWasmTableEntry(func)(arg); };
        setMainLoop(browserIterationFunc, fps, simulateInfiniteLoop, arg);
      }
  
    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;
      }
    
    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 = nodeFS.readSync(process.stdin.fd, buf, 0, BUFSIZE, null);
                } 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) {
        abort('internal error: mmapAlloc called but `memalign` native symbol not exported');
      }
    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 (!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;
          }}};
    
    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 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:function(path, opts) {
          path = PATH_FS.resolve(FS.cwd(), path);
          opts = opts || {};
    
          if (!path) return { path: '', node: null };
    
          var defaults = {
            follow_mount: true,
            recurse_count: 0
          };
          for (var key in defaults) {
            if (opts[key] === undefined) {
              opts[key] = defaults[key];
            }
          }
    
          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(function(p) {
            return !!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 });
                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:function(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:function(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:function(node) {
          var hash = FS.hashName(node.parent.id, node.name);
          node.name_next = FS.nameTable[hash];
          FS.nameTable[hash] = node;
        },hashRemoveNode:function(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:function(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:function(parent, name, mode, rdev) {
          assert(typeof parent === 'object')
          var node = new FS.FSNode(parent, name, mode, rdev);
    
          FS.hashAddNode(node);
    
          return node;
        },destroyNode:function(node) {
          FS.hashRemoveNode(node);
        },isRoot:function(node) {
          return node === node.parent;
        },isMountpoint:function(node) {
          return !!node.mounted;
        },isFile:function(mode) {
          return (mode & 61440) === 32768;
        },isDir:function(mode) {
          return (mode & 61440) === 16384;
        },isLink:function(mode) {
          return (mode & 61440) === 40960;
        },isChrdev:function(mode) {
          return (mode & 61440) === 8192;
        },isBlkdev:function(mode) {
          return (mode & 61440) === 24576;
        },isFIFO:function(mode) {
          return (mode & 61440) === 4096;
        },isSocket:function(mode) {
          return (mode & 49152) === 49152;
        },flagModes:{"r":0,"r+":2,"w":577,"w+":578,"a":1089,"a+":1090},modeStringToFlags:function(str) {
          var flags = FS.flagModes[str];
          if (typeof flags === 'undefined') {
            throw new Error('Unknown file open mode: ' + str);
          }
          return flags;
        },flagsToPermissionString:function(flag) {
          var perms = ['r', 'w', 'rw'][flag & 3];
          if ((flag & 512)) {
            perms += 'w';
          }
          return perms;
        },nodePermissions:function(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:function(dir) {
          var errCode = FS.nodePermissions(dir, 'x');
          if (errCode) return errCode;
          if (!dir.node_ops.lookup) return 2;
          return 0;
        },mayCreate:function(dir, name) {
          try {
            var node = FS.lookupNode(dir, name);
            return 20;
          } catch (e) {
          }
          return FS.nodePermissions(dir, 'wx');
        },mayDelete:function(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:function(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:function(fd_start, fd_end) {
          fd_start = fd_start || 0;
          fd_end = 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:function(fd) {
          return FS.streams[fd];
        },createStream:function(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
          var newStream = new FS.FSStream();
          for (var p in stream) {
            newStream[p] = stream[p];
          }
          stream = newStream;
          var fd = FS.nextfd(fd_start, fd_end);
          stream.fd = fd;
          FS.streams[fd] = stream;
          return stream;
        },closeStream:function(fd) {
          FS.streams[fd] = null;
        },chrdev_stream_ops:{open:function(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:function() {
            throw new FS.ErrnoError(70);
          }},major:function(dev) {
          return ((dev) >> 8);
        },minor:function(dev) {
          return ((dev) & 0xff);
        },makedev:function(ma, mi) {
          return ((ma) << 8 | (mi));
        },registerDevice:function(dev, ops) {
          FS.devices[dev] = { stream_ops: ops };
        },getDevice:function(dev) {
          return FS.devices[dev];
        },getMounts:function(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:function(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(function (mount) {
            if (!mount.type.syncfs) {
              return done(null);
            }
            mount.type.syncfs(mount, populate, done);
          });
        },mount:function(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:function (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(function (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:function(parent, name) {
          return parent.node_ops.lookup(parent, name);
        },mknod:function(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:function(path, mode) {
          mode = mode !== undefined ? mode : 438 /* 0666 */;
          mode &= 4095;
          mode |= 32768;
          return FS.mknod(path, mode, 0);
        },mkdir:function(path, mode) {
          mode = mode !== undefined ? mode : 511 /* 0777 */;
          mode &= 511 | 512;
          mode |= 16384;
          return FS.mknod(path, mode, 0);
        },mkdirTree:function(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:function(path, mode, dev) {
          if (typeof(dev) === 'undefined') {
            dev = mode;
            mode = 438 /* 0666 */;
          }
          mode |= 8192;
          return FS.mknod(path, mode, dev);
        },symlink:function(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:function(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:function(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:function(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:function(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, 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:function(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:function(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:function(path) {
          return FS.stat(path, true);
        },chmod:function(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:function(path, mode) {
          FS.chmod(path, mode, true);
        },fchmod:function(fd, mode) {
          var stream = FS.getStream(fd);
          if (!stream) {
            throw new FS.ErrnoError(8);
          }
          FS.chmod(stream.node, mode);
        },chown:function(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:function(path, uid, gid) {
          FS.chown(path, uid, gid, true);
        },fchown:function(fd, uid, gid) {
          var stream = FS.getStream(fd);
          if (!stream) {
            throw new FS.ErrnoError(8);
          }
          FS.chown(stream.node, uid, gid);
        },truncate:function(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:function(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:function(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:function(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
            id: node.id,
            flags: flags,
            mode: node.mode,
            seekable: true,
            position: 0,
            stream_ops: node.stream_ops,
            node_ops: node.node_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:function(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:function(stream) {
          return stream.fd === null;
        },llseek:function(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:function(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:function(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:function(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:function(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:function(stream, buffer, offset, length, mmapFlags) {
          if (!stream || !stream.stream_ops.msync) {
            return 0;
          }
          return stream.stream_ops.msync(stream, buffer, offset, length, mmapFlags);
        },munmap:function(stream) {
          return 0;
        },ioctl:function(stream, cmd, arg) {
          if (!stream.stream_ops.ioctl) {
            throw new FS.ErrnoError(59);
          }
          return stream.stream_ops.ioctl(stream, cmd, arg);
        },readFile:function(path, opts) {
          opts = 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:function(path, data, opts) {
          opts = 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:function() {
          return FS.currentPath;
        },chdir:function(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:function() {
          FS.mkdir('/tmp');
          FS.mkdir('/home');
          FS.mkdir('/home/web_user');
        },createDefaultDevices:function() {
          // create /dev
          FS.mkdir('/dev');
          // setup /dev/null
          FS.registerDevice(FS.makedev(1, 3), {
            read: function() { return 0; },
            write: function(stream, buffer, offset, length, pos) { return 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:function() {
          // 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: function() {
              var node = FS.createNode(proc_self, 'fd', 16384 | 511 /* 0777 */, 73);
              node.node_ops = {
                lookup: function(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: function() { return stream.path } }
                  };
                  ret.parent = ret; // make it look like a simple root node
                  return ret;
                }
              };
              return node;
            }
          }, {}, '/proc/self/fd');
        },createStandardStreams:function() {
          // 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:function() {
          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(function(code) {
            FS.genericErrors[code] = new FS.ErrnoError(code);
            FS.genericErrors[code].stack = '<generic error, no stack>';
          });
        },staticInit:function() {
          FS.ensureErrnoError();
    
          FS.nameTable = new Array(4096);
    
          FS.mount(MEMFS, {}, '/');
    
          FS.createDefaultDirectories();
          FS.createDefaultDevices();
          FS.createSpecialDirectories();
    
          FS.filesystems = {
            'MEMFS': MEMFS,
          };
        },init:function(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:function() {
          FS.init.initialized = false;
          // force-flush all streams, so we get musl std streams printed out
          var fflush = Module['_fflush'];
          if (fflush) fflush(0);
          // 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:function(canRead, canWrite) {
          var mode = 0;
          if (canRead) mode |= 292 | 73;
          if (canWrite) mode |= 146;
          return mode;
        },findObject:function(path, dontResolveLastLink) {
          var ret = FS.analyzePath(path, dontResolveLastLink);
          if (ret.exists) {
            return ret.object;
          } else {
            return null;
          }
        },analyzePath:function(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:function(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:function(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:function(parent, name, data, canRead, canWrite, canOwn) {
          var path = name ? PATH.join2(typeof parent === 'string' ? parent : FS.getPath(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:function(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: function(stream) {
              stream.seekable = false;
            },
            close: function(stream) {
              // flush any pending line data
              if (output && output.buffer && output.buffer.length) {
                output(10);
              }
            },
            read: function(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: function(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:function(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:function(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 = (function(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.
              if (typeof Uint8Array != 'undefined') 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(function(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(function(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 = 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:function(parent, name, url, canRead, canWrite, onload, onerror, dontCreateFile, canOwn, preFinish) {
          Browser.init(); // XXX perhaps this method should move onto Browser?
          // 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);
            }
            var handled = false;
            Module['preloadPlugins'].forEach(function(plugin) {
              if (handled) return;
              if (plugin['canHandle'](fullname)) {
                plugin['handle'](byteArray, fullname, finish, function() {
                  if (onerror) onerror();
                  removeRunDependency(dep);
                });
                handled = true;
              }
            });
            if (!handled) finish(byteArray);
          }
          addRunDependency(dep);
          if (typeof url == 'string') {
            asyncLoad(url, function(byteArray) {
              processData(byteArray);
            }, onerror);
          } else {
            processData(url);
          }
        },indexedDB:function() {
          return window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
        },DB_NAME:function() {
          return 'EM_FS_' + window.location.pathname;
        },DB_VERSION:20,DB_STORE_NAME:"FILE_DATA",saveFilesToDB:function(paths, onload, onerror) {
          onload = onload || function(){};
          onerror = onerror || function(){};
          var indexedDB = FS.indexedDB();
          try {
            var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION);
          } catch (e) {
            return onerror(e);
          }
          openRequest.onupgradeneeded = function openRequest_onupgradeneeded() {
            out('creating db');
            var db = openRequest.result;
            db.createObjectStore(FS.DB_STORE_NAME);
          };
          openRequest.onsuccess = function 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(function(path) {
              var putRequest = files.put(FS.analyzePath(path).object.contents, path);
              putRequest.onsuccess = function putRequest_onsuccess() { ok++; if (ok + fail == total) finish() };
              putRequest.onerror = function putRequest_onerror() { fail++; if (ok + fail == total) finish() };
            });
            transaction.onerror = onerror;
          };
          openRequest.onerror = onerror;
        },loadFilesFromDB:function(paths, onload, onerror) {
          onload = onload || function(){};
          onerror = onerror || function(){};
          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 = function 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(function(path) {
              var getRequest = files.get(path);
              getRequest.onsuccess = function 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 = function getRequest_onerror() { fail++; if (ok + fail == total) finish() };
            });
            transaction.onerror = onerror;
          };
          openRequest.onerror = onerror;
        },absolutePath:function() {
          abort('FS.absolutePath has been removed; use PATH_FS.resolve instead');
        },createFolder:function() {
          abort('FS.createFolder has been removed; use FS.mkdir instead');
        },createLink:function() {
          abort('FS.createLink has been removed; use FS.symlink instead');
        },joinPath:function() {
          abort('FS.joinPath has been removed; use PATH.join instead');
        },mmapAlloc:function() {
          abort('FS.mmapAlloc has been replaced by the top level function mmapAlloc');
        },standardizePath:function() {
          abort('FS.standardizePath has been removed; use PATH.normalize instead');
        }};
    var SYSCALLS = {mappings:{},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 node;
          var lookup = FS.lookupPath(path, { follow: true });
          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;
        },doDup:function(path, flags, suggestFD) {
          var suggest = FS.getStream(suggestFD);
          if (suggest) FS.close(suggest);
          return FS.open(path, flags, 0, suggestFD, suggestFD).fd;
        },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 _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)) abort(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)) abort(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)) abort(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)) abort(e);
      return e.errno;
    }
    }
  
    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:[],programs:[],framebuffers:[],renderbuffers:[],textures:[],shaders:[],vaos:[],contexts:[],offscreenCanvases:{},queries:[],samplers:[],transformFeedbacks:[],syncs:[],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;
        },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;
        },createContext:function(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;
            canvas.getContext = function(ver, attrs) {
              var gl = canvas.getContextSafariWebGL2Fixed(ver, attrs);
              return ((ver == 'webgl') == (gl instanceof WebGLRenderingContext)) ? gl : null;
            }
          }
    
          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);
          }
    
          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);
            }
          });
        }};
    function _glActiveTexture(x0) { GLctx['activeTexture'](x0) }
  
    function _glAttachShader(program, shader) {
        GLctx.attachShader(GL.programs[program], GL.shaders[shader]);
      }
  
    function _glBindBuffer(target, 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 _glBindFramebuffer(target, framebuffer) {
    
        GLctx.bindFramebuffer(target, GL.framebuffers[framebuffer]);
    
      }
  
    function _glBindTexture(target, texture) {
        GLctx.bindTexture(target, GL.textures[texture]);
      }
  
    function _glBindVertexArray(vao) {
        GLctx['bindVertexArray'](GL.vaos[vao]);
      }
  
    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 _glCheckFramebufferStatus(x0) { return GLctx['checkFramebufferStatus'](x0) }
  
    function _glClear(x0) { GLctx['clear'](x0) }
  
    function _glClearColor(x0, x1, x2, x3) { GLctx['clearColor'](x0, x1, x2, x3) }
  
    function _glCompileShader(shader) {
        GLctx.compileShader(GL.shaders[shader]);
      }
  
    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);
    
        return id;
      }
  
    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.currentPixelPackBufferBinding) GLctx.currentPixelPackBufferBinding = 0;
          if (id == GLctx.currentPixelUnpackBufferBinding) GLctx.currentPixelUnpackBufferBinding = 0;
        }
      }
  
    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 _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 _glDisable(x0) { GLctx['disable'](x0) }
  
    function _glDrawArrays(mode, first, count) {
    
        GLctx.drawArrays(mode, first, count);
    
      }
  
    function _glDrawElements(mode, count, type, indices) {
    
        GLctx.drawElements(mode, count, type, indices);
    
      }
  
    function _glEnable(x0) { GLctx['enable'](x0) }
  
    function _glEnableVertexAttribArray(index) {
        GLctx.enableVertexAttribArray(index);
      }
  
    function _glFramebufferTexture2D(target, attachment, textarget, texture, level) {
        GLctx.framebufferTexture2D(target, attachment, textarget,
                                        GL.textures[texture], level);
      }
  
    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 _glGenTextures(n, textures) {
        __glGenObject(n, textures, 'createTexture', GL.textures
          );
      }
  
    function _glGenVertexArrays(n, arrays) {
        __glGenObject(n, arrays, 'createVertexArray', GL.vaos
          );
      }
  
    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 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 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 _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 _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 _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);
        }
      }
  
    /** @suppress {checkTypes} */
    function jstoi_q(str) {
        return parseInt(str);
      }
    
    /** @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;
    
            // Assign a new location.
            var id = program.uniformIdCounter;
            program.uniformIdCounter += sz;
            // 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 _glIsBuffer(buffer) {
        var b = GL.buffers[buffer];
        if (!b) return 0;
        return GLctx.isBuffer(b);
      }
  
    function _glIsProgram(program) {
        program = GL.programs[program];
        if (!program) return 0;
        return GLctx.isProgram(program);
      }
  
    function _glIsVertexArray(array) {
    
        var vao = GL.vaos[array];
        if (!vao) return 0;
        return GLctx['isVertexArray'](vao);
      }
  
    function _glLineWidth(x0) { GLctx['lineWidth'](x0) }
  
    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 = {};
    
      }
  
    function _glPolygonOffset(x0, x1) { GLctx['polygonOffset'](x0, x1) }
  
    function _glShaderSource(shader, count, string, length) {
        var source = GL.getSource(shader, count, string, length);
    
        GLctx.shaderSource(GL.shaders[shader], source);
      }
  
    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 _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 _glTexParameteri(x0, x1, x2) { GLctx['texParameteri'](x0, x1, x2) }
  
    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*/);
        }
      }
    function _glUniform1i(location, v0) {
        GLctx.uniform1i(webglGetUniformLocation(location), v0);
      }
  
    function _glUniform3f(location, v0, v1, v2) {
        GLctx.uniform3f(webglGetUniformLocation(location), v0, v1, v2);
      }
  
    var miniTempWebGLFloatBuffers = [];
    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 _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.
        GLctx.currentProgram = program;
      }
  
    function _glVertexAttribPointer(index, size, type, normalized, stride, ptr) {
        GLctx.vertexAttribPointer(index, size, type, !!normalized, stride, ptr);
      }
  
    function _glViewport(x0, x1, x2, x3) { GLctx['viewport'](x0, x1, x2, x3) }
  
    /** @constructor */
    function GLFW_Window(id, width, height, title, monitor, share) {
          this.id = id;
          this.x = 0;
          this.y = 0;
          this.fullscreen = false; // Used to determine if app in fullscreen mode
          this.storedX = 0; // Used to store X before fullscreen
          this.storedY = 0; // Used to store Y before fullscreen
          this.width = width;
          this.height = height;
          this.storedWidth = width; // Used to store width before fullscreen
          this.storedHeight = height; // Used to store height before fullscreen
          this.title = title;
          this.monitor = monitor;
          this.share = share;
          this.attributes = GLFW.hints;
          this.inputModes = {
            0x00033001:0x00034001, // GLFW_CURSOR (GLFW_CURSOR_NORMAL)
            0x00033002:0, // GLFW_STICKY_KEYS
            0x00033003:0, // GLFW_STICKY_MOUSE_BUTTONS
          };
          this.buttons = 0;
          this.keys = new Array();
          this.domKeys = new Array();
          this.shouldClose = 0;
          this.title = null;
          this.windowPosFunc = null; // GLFWwindowposfun
          this.windowSizeFunc = null; // GLFWwindowsizefun
          this.windowCloseFunc = null; // GLFWwindowclosefun
          this.windowRefreshFunc = null; // GLFWwindowrefreshfun
          this.windowFocusFunc = null; // GLFWwindowfocusfun
          this.windowIconifyFunc = null; // GLFWwindowiconifyfun
          this.framebufferSizeFunc = null; // GLFWframebuffersizefun
          this.mouseButtonFunc = null; // GLFWmousebuttonfun
          this.cursorPosFunc = null; // GLFWcursorposfun
          this.cursorEnterFunc = null; // GLFWcursorenterfun
          this.scrollFunc = null; // GLFWscrollfun
          this.dropFunc = null; // GLFWdropfun
          this.keyFunc = null; // GLFWkeyfun
          this.charFunc = null; // GLFWcharfun
          this.userptr = null;
        }
    var GLFW = {WindowFromId:function(id) {
          if (id <= 0 || !GLFW.windows) return null;
          return GLFW.windows[id - 1];
        },joystickFunc:null,errorFunc:null,monitorFunc:null,active:null,windows:null,monitors:null,monitorString:null,versionString:null,initialTime:null,extensions:null,hints:null,defaultHints:{131073:0,131074:0,131075:1,131076:1,131077:1,135169:8,135170:8,135171:8,135172:8,135173:24,135174:8,135175:0,135176:0,135177:0,135178:0,135179:0,135180:0,135181:0,135182:0,135183:0,139265:196609,139266:1,139267:0,139268:0,139269:0,139270:0,139271:0,139272:0},DOMToGLFWKeyCode:function(keycode) {
          switch (keycode) {
            // these keycodes are only defined for GLFW3, assume they are the same for GLFW2
            case 0x20:return 32; // DOM_VK_SPACE -> GLFW_KEY_SPACE
            case 0xDE:return 39; // DOM_VK_QUOTE -> GLFW_KEY_APOSTROPHE
            case 0xBC:return 44; // DOM_VK_COMMA -> GLFW_KEY_COMMA
            case 0xAD:return 45; // DOM_VK_HYPHEN_MINUS -> GLFW_KEY_MINUS
            case 0xBD:return 45; // DOM_VK_MINUS -> GLFW_KEY_MINUS
            case 0xBE:return 46; // DOM_VK_PERIOD -> GLFW_KEY_PERIOD
            case 0xBF:return 47; // DOM_VK_SLASH -> GLFW_KEY_SLASH
            case 0x30:return 48; // DOM_VK_0 -> GLFW_KEY_0
            case 0x31:return 49; // DOM_VK_1 -> GLFW_KEY_1
            case 0x32:return 50; // DOM_VK_2 -> GLFW_KEY_2
            case 0x33:return 51; // DOM_VK_3 -> GLFW_KEY_3
            case 0x34:return 52; // DOM_VK_4 -> GLFW_KEY_4
            case 0x35:return 53; // DOM_VK_5 -> GLFW_KEY_5
            case 0x36:return 54; // DOM_VK_6 -> GLFW_KEY_6
            case 0x37:return 55; // DOM_VK_7 -> GLFW_KEY_7
            case 0x38:return 56; // DOM_VK_8 -> GLFW_KEY_8
            case 0x39:return 57; // DOM_VK_9 -> GLFW_KEY_9
            case 0x3B:return 59; // DOM_VK_SEMICOLON -> GLFW_KEY_SEMICOLON
            case 0x3D:return 61; // DOM_VK_EQUALS -> GLFW_KEY_EQUAL
            case 0xBB:return 61; // DOM_VK_EQUALS -> GLFW_KEY_EQUAL
            case 0x41:return 65; // DOM_VK_A -> GLFW_KEY_A
            case 0x42:return 66; // DOM_VK_B -> GLFW_KEY_B
            case 0x43:return 67; // DOM_VK_C -> GLFW_KEY_C
            case 0x44:return 68; // DOM_VK_D -> GLFW_KEY_D
            case 0x45:return 69; // DOM_VK_E -> GLFW_KEY_E
            case 0x46:return 70; // DOM_VK_F -> GLFW_KEY_F
            case 0x47:return 71; // DOM_VK_G -> GLFW_KEY_G
            case 0x48:return 72; // DOM_VK_H -> GLFW_KEY_H
            case 0x49:return 73; // DOM_VK_I -> GLFW_KEY_I
            case 0x4A:return 74; // DOM_VK_J -> GLFW_KEY_J
            case 0x4B:return 75; // DOM_VK_K -> GLFW_KEY_K
            case 0x4C:return 76; // DOM_VK_L -> GLFW_KEY_L
            case 0x4D:return 77; // DOM_VK_M -> GLFW_KEY_M
            case 0x4E:return 78; // DOM_VK_N -> GLFW_KEY_N
            case 0x4F:return 79; // DOM_VK_O -> GLFW_KEY_O
            case 0x50:return 80; // DOM_VK_P -> GLFW_KEY_P
            case 0x51:return 81; // DOM_VK_Q -> GLFW_KEY_Q
            case 0x52:return 82; // DOM_VK_R -> GLFW_KEY_R
            case 0x53:return 83; // DOM_VK_S -> GLFW_KEY_S
            case 0x54:return 84; // DOM_VK_T -> GLFW_KEY_T
            case 0x55:return 85; // DOM_VK_U -> GLFW_KEY_U
            case 0x56:return 86; // DOM_VK_V -> GLFW_KEY_V
            case 0x57:return 87; // DOM_VK_W -> GLFW_KEY_W
            case 0x58:return 88; // DOM_VK_X -> GLFW_KEY_X
            case 0x59:return 89; // DOM_VK_Y -> GLFW_KEY_Y
            case 0x5a:return 90; // DOM_VK_Z -> GLFW_KEY_Z
            case 0xDB:return 91; // DOM_VK_OPEN_BRACKET -> GLFW_KEY_LEFT_BRACKET
            case 0xDC:return 92; // DOM_VK_BACKSLASH -> GLFW_KEY_BACKSLASH
            case 0xDD:return 93; // DOM_VK_CLOSE_BRACKET -> GLFW_KEY_RIGHT_BRACKET
            case 0xC0:return 94; // DOM_VK_BACK_QUOTE -> GLFW_KEY_GRAVE_ACCENT
    
            case 0x1B:return 256; // DOM_VK_ESCAPE -> GLFW_KEY_ESCAPE
            case 0x0D:return 257; // DOM_VK_RETURN -> GLFW_KEY_ENTER
            case 0x09:return 258; // DOM_VK_TAB -> GLFW_KEY_TAB
            case 0x08:return 259; // DOM_VK_BACK -> GLFW_KEY_BACKSPACE
            case 0x2D:return 260; // DOM_VK_INSERT -> GLFW_KEY_INSERT
            case 0x2E:return 261; // DOM_VK_DELETE -> GLFW_KEY_DELETE
            case 0x27:return 262; // DOM_VK_RIGHT -> GLFW_KEY_RIGHT
            case 0x25:return 263; // DOM_VK_LEFT -> GLFW_KEY_LEFT
            case 0x28:return 264; // DOM_VK_DOWN -> GLFW_KEY_DOWN
            case 0x26:return 265; // DOM_VK_UP -> GLFW_KEY_UP
            case 0x21:return 266; // DOM_VK_PAGE_UP -> GLFW_KEY_PAGE_UP
            case 0x22:return 267; // DOM_VK_PAGE_DOWN -> GLFW_KEY_PAGE_DOWN
            case 0x24:return 268; // DOM_VK_HOME -> GLFW_KEY_HOME
            case 0x23:return 269; // DOM_VK_END -> GLFW_KEY_END
            case 0x14:return 280; // DOM_VK_CAPS_LOCK -> GLFW_KEY_CAPS_LOCK
            case 0x91:return 281; // DOM_VK_SCROLL_LOCK -> GLFW_KEY_SCROLL_LOCK
            case 0x90:return 282; // DOM_VK_NUM_LOCK -> GLFW_KEY_NUM_LOCK
            case 0x2C:return 283; // DOM_VK_SNAPSHOT -> GLFW_KEY_PRINT_SCREEN
            case 0x13:return 284; // DOM_VK_PAUSE -> GLFW_KEY_PAUSE
            case 0x70:return 290; // DOM_VK_F1 -> GLFW_KEY_F1
            case 0x71:return 291; // DOM_VK_F2 -> GLFW_KEY_F2
            case 0x72:return 292; // DOM_VK_F3 -> GLFW_KEY_F3
            case 0x73:return 293; // DOM_VK_F4 -> GLFW_KEY_F4
            case 0x74:return 294; // DOM_VK_F5 -> GLFW_KEY_F5
            case 0x75:return 295; // DOM_VK_F6 -> GLFW_KEY_F6
            case 0x76:return 296; // DOM_VK_F7 -> GLFW_KEY_F7
            case 0x77:return 297; // DOM_VK_F8 -> GLFW_KEY_F8
            case 0x78:return 298; // DOM_VK_F9 -> GLFW_KEY_F9
            case 0x79:return 299; // DOM_VK_F10 -> GLFW_KEY_F10
            case 0x7A:return 300; // DOM_VK_F11 -> GLFW_KEY_F11
            case 0x7B:return 301; // DOM_VK_F12 -> GLFW_KEY_F12
            case 0x7C:return 302; // DOM_VK_F13 -> GLFW_KEY_F13
            case 0x7D:return 303; // DOM_VK_F14 -> GLFW_KEY_F14
            case 0x7E:return 304; // DOM_VK_F15 -> GLFW_KEY_F15
            case 0x7F:return 305; // DOM_VK_F16 -> GLFW_KEY_F16
            case 0x80:return 306; // DOM_VK_F17 -> GLFW_KEY_F17
            case 0x81:return 307; // DOM_VK_F18 -> GLFW_KEY_F18
            case 0x82:return 308; // DOM_VK_F19 -> GLFW_KEY_F19
            case 0x83:return 309; // DOM_VK_F20 -> GLFW_KEY_F20
            case 0x84:return 310; // DOM_VK_F21 -> GLFW_KEY_F21
            case 0x85:return 311; // DOM_VK_F22 -> GLFW_KEY_F22
            case 0x86:return 312; // DOM_VK_F23 -> GLFW_KEY_F23
            case 0x87:return 313; // DOM_VK_F24 -> GLFW_KEY_F24
            case 0x88:return 314; // 0x88 (not used?) -> GLFW_KEY_F25
            case 0x60:return 320; // DOM_VK_NUMPAD0 -> GLFW_KEY_KP_0
            case 0x61:return 321; // DOM_VK_NUMPAD1 -> GLFW_KEY_KP_1
            case 0x62:return 322; // DOM_VK_NUMPAD2 -> GLFW_KEY_KP_2
            case 0x63:return 323; // DOM_VK_NUMPAD3 -> GLFW_KEY_KP_3
            case 0x64:return 324; // DOM_VK_NUMPAD4 -> GLFW_KEY_KP_4
            case 0x65:return 325; // DOM_VK_NUMPAD5 -> GLFW_KEY_KP_5
            case 0x66:return 326; // DOM_VK_NUMPAD6 -> GLFW_KEY_KP_6
            case 0x67:return 327; // DOM_VK_NUMPAD7 -> GLFW_KEY_KP_7
            case 0x68:return 328; // DOM_VK_NUMPAD8 -> GLFW_KEY_KP_8
            case 0x69:return 329; // DOM_VK_NUMPAD9 -> GLFW_KEY_KP_9
            case 0x6E:return 330; // DOM_VK_DECIMAL -> GLFW_KEY_KP_DECIMAL
            case 0x6F:return 331; // DOM_VK_DIVIDE -> GLFW_KEY_KP_DIVIDE
            case 0x6A:return 332; // DOM_VK_MULTIPLY -> GLFW_KEY_KP_MULTIPLY
            case 0x6D:return 333; // DOM_VK_SUBTRACT -> GLFW_KEY_KP_SUBTRACT
            case 0x6B:return 334; // DOM_VK_ADD -> GLFW_KEY_KP_ADD
            // case 0x0D:return 335; // DOM_VK_RETURN -> GLFW_KEY_KP_ENTER (DOM_KEY_LOCATION_RIGHT)
            // case 0x61:return 336; // DOM_VK_EQUALS -> GLFW_KEY_KP_EQUAL (DOM_KEY_LOCATION_RIGHT)
            case 0x10:return 340; // DOM_VK_SHIFT -> GLFW_KEY_LEFT_SHIFT
            case 0x11:return 341; // DOM_VK_CONTROL -> GLFW_KEY_LEFT_CONTROL
            case 0x12:return 342; // DOM_VK_ALT -> GLFW_KEY_LEFT_ALT
            case 0x5B:return 343; // DOM_VK_WIN -> GLFW_KEY_LEFT_SUPER
            // case 0x10:return 344; // DOM_VK_SHIFT -> GLFW_KEY_RIGHT_SHIFT (DOM_KEY_LOCATION_RIGHT)
            // case 0x11:return 345; // DOM_VK_CONTROL -> GLFW_KEY_RIGHT_CONTROL (DOM_KEY_LOCATION_RIGHT)
            // case 0x12:return 346; // DOM_VK_ALT -> GLFW_KEY_RIGHT_ALT (DOM_KEY_LOCATION_RIGHT)
            // case 0x5B:return 347; // DOM_VK_WIN -> GLFW_KEY_RIGHT_SUPER (DOM_KEY_LOCATION_RIGHT)
            case 0x5D:return 348; // DOM_VK_CONTEXT_MENU -> GLFW_KEY_MENU
            // XXX: GLFW_KEY_WORLD_1, GLFW_KEY_WORLD_2 what are these?
            default:return -1; // GLFW_KEY_UNKNOWN
          };
        },getModBits:function(win) {
          var mod = 0;
          if (win.keys[340]) mod |= 0x0001; // GLFW_MOD_SHIFT
          if (win.keys[341]) mod |= 0x0002; // GLFW_MOD_CONTROL
          if (win.keys[342]) mod |= 0x0004; // GLFW_MOD_ALT
          if (win.keys[343]) mod |= 0x0008; // GLFW_MOD_SUPER
          return mod;
        },onKeyPress:function(event) {
          if (!GLFW.active || !GLFW.active.charFunc) return;
          if (event.ctrlKey || event.metaKey) return;
    
          // correct unicode charCode is only available with onKeyPress event
          var charCode = event.charCode;
          if (charCode == 0 || (charCode >= 0x00 && charCode <= 0x1F)) return;
    
          getWasmTableEntry(GLFW.active.charFunc)(GLFW.active.id, charCode);
        },onKeyChanged:function(keyCode, status) {
          if (!GLFW.active) return;
    
          var key = GLFW.DOMToGLFWKeyCode(keyCode);
          if (key == -1) return;
    
          var repeat = status && GLFW.active.keys[key];
          GLFW.active.keys[key] = status;
          GLFW.active.domKeys[keyCode] = status;
          if (!GLFW.active.keyFunc) return;
    
          if (repeat) status = 2; // GLFW_REPEAT
          getWasmTableEntry(GLFW.active.keyFunc)(GLFW.active.id, key, keyCode, status, GLFW.getModBits(GLFW.active));
        },onGamepadConnected:function(event) {
          GLFW.refreshJoysticks();
        },onGamepadDisconnected:function(event) {
          GLFW.refreshJoysticks();
        },onKeydown:function(event) {
          GLFW.onKeyChanged(event.keyCode, 1); // GLFW_PRESS or GLFW_REPEAT
    
          // This logic comes directly from the sdl implementation. We cannot
          // call preventDefault on all keydown events otherwise onKeyPress will
          // not get called
          if (event.keyCode === 8 /* backspace */ || event.keyCode === 9 /* tab */) {
            event.preventDefault();
          }
        },onKeyup:function(event) {
          GLFW.onKeyChanged(event.keyCode, 0); // GLFW_RELEASE
        },onBlur:function(event) {
          if (!GLFW.active) return;
    
          for (var i = 0; i < GLFW.active.domKeys.length; ++i) {
            if (GLFW.active.domKeys[i]) {
              GLFW.onKeyChanged(i, 0); // GLFW_RELEASE
            }
          }
        },onMousemove:function(event) {
          if (!GLFW.active) return;
    
          Browser.calculateMouseEvent(event);
    
          if (event.target != Module["canvas"] || !GLFW.active.cursorPosFunc) return;
    
          getWasmTableEntry(GLFW.active.cursorPosFunc)(GLFW.active.id, Browser.mouseX, Browser.mouseY);
        },DOMToGLFWMouseButton:function(event) {
          // DOM and glfw have different button codes.
          // See http://www.w3schools.com/jsref/event_button.asp.
          var eventButton = event['button'];
          if (eventButton > 0) {
            if (eventButton == 1) {
              eventButton = 2;
            } else {
              eventButton = 1;
            }
          }
          return eventButton;
        },onMouseenter:function(event) {
          if (!GLFW.active) return;
    
          if (event.target != Module["canvas"] || !GLFW.active.cursorEnterFunc) return;
    
          getWasmTableEntry(GLFW.active.cursorEnterFunc)(GLFW.active.id, 1);
        },onMouseleave:function(event) {
          if (!GLFW.active) return;
    
          if (event.target != Module["canvas"] || !GLFW.active.cursorEnterFunc) return;
    
          getWasmTableEntry(GLFW.active.cursorEnterFunc)(GLFW.active.id, 0);
        },onMouseButtonChanged:function(event, status) {
          if (!GLFW.active) return;
    
          Browser.calculateMouseEvent(event);
    
          if (event.target != Module["canvas"]) return;
    
          var eventButton = GLFW.DOMToGLFWMouseButton(event);
    
          if (status == 1) { // GLFW_PRESS
            GLFW.active.buttons |= (1 << eventButton);
            try {
              event.target.setCapture();
            } catch (e) {}
          } else {  // GLFW_RELEASE
            GLFW.active.buttons &= ~(1 << eventButton);
          }
    
          if (!GLFW.active.mouseButtonFunc) return;
    
          getWasmTableEntry(GLFW.active.mouseButtonFunc)(GLFW.active.id, eventButton, status, GLFW.getModBits(GLFW.active));
        },onMouseButtonDown:function(event) {
          if (!GLFW.active) return;
          GLFW.onMouseButtonChanged(event, 1); // GLFW_PRESS
        },onMouseButtonUp:function(event) {
          if (!GLFW.active) return;
          GLFW.onMouseButtonChanged(event, 0); // GLFW_RELEASE
        },onMouseWheel:function(event) {
          // Note the minus sign that flips browser wheel direction (positive direction scrolls page down) to native wheel direction (positive direction is mouse wheel up)
          var delta = -Browser.getMouseWheelDelta(event);
          delta = (delta == 0) ? 0 : (delta > 0 ? Math.max(delta, 1) : Math.min(delta, -1)); // Quantize to integer so that minimum scroll is at least +/- 1.
          GLFW.wheelPos += delta;
    
          if (!GLFW.active || !GLFW.active.scrollFunc || event.target != Module['canvas']) return;
    
          var sx = 0;
          var sy = 0;
          if (event.type == 'mousewheel') {
            sx = event.wheelDeltaX;
            sy = event.wheelDeltaY;
          } else {
            sx = event.deltaX;
            sy = event.deltaY;
          }
    
          getWasmTableEntry(GLFW.active.scrollFunc)(GLFW.active.id, sx, sy);
    
          event.preventDefault();
        },onCanvasResize:function(width, height) {
          if (!GLFW.active) return;
    
          var resizeNeeded = true;
    
          // If the client is requesting fullscreen mode
          if (document["fullscreen"] || document["fullScreen"] || document["mozFullScreen"] || document["webkitIsFullScreen"]) {
            GLFW.active.storedX = GLFW.active.x;
            GLFW.active.storedY = GLFW.active.y;
            GLFW.active.storedWidth = GLFW.active.width;
            GLFW.active.storedHeight = GLFW.active.height;
            GLFW.active.x = GLFW.active.y = 0;
            GLFW.active.width = screen.width;
            GLFW.active.height = screen.height;
            GLFW.active.fullscreen = true;
    
          // If the client is reverting from fullscreen mode
          } else if (GLFW.active.fullscreen == true) {
            GLFW.active.x = GLFW.active.storedX;
            GLFW.active.y = GLFW.active.storedY;
            GLFW.active.width = GLFW.active.storedWidth;
            GLFW.active.height = GLFW.active.storedHeight;
            GLFW.active.fullscreen = false;
    
          // If the width/height values do not match current active window sizes
          } else if (GLFW.active.width != width || GLFW.active.height != height) {
              GLFW.active.width = width;
              GLFW.active.height = height;
          } else {
            resizeNeeded = false;
          }
    
          // If any of the above conditions were true, we need to resize the canvas
          if (resizeNeeded) {
            // resets the canvas size to counter the aspect preservation of Browser.updateCanvasDimensions
            Browser.setCanvasSize(GLFW.active.width, GLFW.active.height, true);
            // TODO: Client dimensions (clientWidth/clientHeight) vs pixel dimensions (width/height) of
            // the canvas should drive window and framebuffer size respectfully.
            GLFW.onWindowSizeChanged();
            GLFW.onFramebufferSizeChanged();
          }
        },onWindowSizeChanged:function() {
          if (!GLFW.active) return;
    
          if (!GLFW.active.windowSizeFunc) return;
    
          getWasmTableEntry(GLFW.active.windowSizeFunc)(GLFW.active.id, GLFW.active.width, GLFW.active.height);
        },onFramebufferSizeChanged:function() {
          if (!GLFW.active) return;
    
          if (!GLFW.active.framebufferSizeFunc) return;
    
          getWasmTableEntry(GLFW.active.framebufferSizeFunc)(GLFW.active.id, GLFW.active.width, GLFW.active.height);
        },getTime:function() {
          return _emscripten_get_now() / 1000;
        },setWindowTitle:function(winid, title) {
          var win = GLFW.WindowFromId(winid);
          if (!win) return;
    
          win.title = UTF8ToString(title);
          if (GLFW.active.id == win.id) {
            document.title = win.title;
          }
        },setJoystickCallback:function(cbfun) {
          GLFW.joystickFunc = cbfun;
          GLFW.refreshJoysticks();
        },joys:{},lastGamepadState:null,lastGamepadStateFrame:null,refreshJoysticks:function() {
          // Produce a new Gamepad API sample if we are ticking a new game frame, or if not using emscripten_set_main_loop() at all to drive animation.
          if (Browser.mainLoop.currentFrameNumber !== GLFW.lastGamepadStateFrame || !Browser.mainLoop.currentFrameNumber) {
            GLFW.lastGamepadState = navigator.getGamepads ? navigator.getGamepads() : (navigator.webkitGetGamepads ? navigator.webkitGetGamepads : null);
            GLFW.lastGamepadStateFrame = Browser.mainLoop.currentFrameNumber;
    
            for (var joy = 0; joy < GLFW.lastGamepadState.length; ++joy) {
              var gamepad = GLFW.lastGamepadState[joy];
    
              if (gamepad) {
                if (!GLFW.joys[joy]) {
                  out('glfw joystick connected:',joy);
                  GLFW.joys[joy] = {
                    id: allocate(intArrayFromString(gamepad.id), ALLOC_NORMAL),
                    buttonsCount: gamepad.buttons.length,
                    axesCount: gamepad.axes.length,
                    buttons: allocate(new Array(gamepad.buttons.length), ALLOC_NORMAL),
                    axes: allocate(new Array(gamepad.axes.length*4), ALLOC_NORMAL)
                  };
    
                  if (GLFW.joystickFunc) {
                    getWasmTableEntry(GLFW.joystickFunc)(joy, 0x00040001); // GLFW_CONNECTED
                  }
                }
    
                var data = GLFW.joys[joy];
    
                for (var i = 0; i < gamepad.buttons.length;  ++i) {
                  setValue(data.buttons + i, gamepad.buttons[i].pressed, 'i8');
                }
    
                for (var i = 0; i < gamepad.axes.length; ++i) {
                  setValue(data.axes + i*4, gamepad.axes[i], 'float');
                }
              } else {
                if (GLFW.joys[joy]) {
                  out('glfw joystick disconnected',joy);
    
                  if (GLFW.joystickFunc) {
                    getWasmTableEntry(GLFW.joystickFunc)(joy, 0x00040002); // GLFW_DISCONNECTED
                  }
    
                  _free(GLFW.joys[joy].id);
                  _free(GLFW.joys[joy].buttons);
                  _free(GLFW.joys[joy].axes);
    
                  delete GLFW.joys[joy];
                }
              }
            }
          }
        },setKeyCallback:function(winid, cbfun) {
          var win = GLFW.WindowFromId(winid);
          if (!win) return null;
          var prevcbfun = win.keyFunc;
          win.keyFunc = cbfun;
          return prevcbfun;
        },setCharCallback:function(winid, cbfun) {
          var win = GLFW.WindowFromId(winid);
          if (!win) return null;
          var prevcbfun = win.charFunc;
          win.charFunc = cbfun;
          return prevcbfun;
        },setMouseButtonCallback:function(winid, cbfun) {
          var win = GLFW.WindowFromId(winid);
          if (!win) return null;
          var prevcbfun = win.mouseButtonFunc;
          win.mouseButtonFunc = cbfun;
          return prevcbfun;
        },setCursorPosCallback:function(winid, cbfun) {
          var win = GLFW.WindowFromId(winid);
          if (!win) return null;
          var prevcbfun = win.cursorPosFunc;
          win.cursorPosFunc = cbfun;
          return prevcbfun;
        },setScrollCallback:function(winid, cbfun) {
          var win = GLFW.WindowFromId(winid);
          if (!win) return null;
          var prevcbfun = win.scrollFunc;
          win.scrollFunc = cbfun;
          return prevcbfun;
        },setDropCallback:function(winid, cbfun) {
          var win = GLFW.WindowFromId(winid);
          if (!win) return null;
          var prevcbfun = win.dropFunc;
          win.dropFunc = cbfun;
          return prevcbfun;
        },onDrop:function(event) {
          if (!GLFW.active || !GLFW.active.dropFunc) return;
          if (!event.dataTransfer || !event.dataTransfer.files || event.dataTransfer.files.length == 0) return;
    
          event.preventDefault();
    
          var filenames = allocate(new Array(event.dataTransfer.files.length*4), ALLOC_NORMAL);
          var filenamesArray = [];
          var count = event.dataTransfer.files.length;
    
          // Read and save the files to emscripten's FS
          var written = 0;
          var drop_dir = '.glfw_dropped_files';
          FS.createPath('/', drop_dir);
    
          function save(file) {
            var path = '/' + drop_dir + '/' + file.name.replace(/\//g, '_');
            var reader = new FileReader();
            reader.onloadend = function(e) {
              if (reader.readyState != 2) { // not DONE
                ++written;
                out('failed to read dropped file: '+file.name+': '+reader.error);
                return;
              }
    
              var data = e.target.result;
              FS.writeFile(path, new Uint8Array(data));
              if (++written === count) {
                getWasmTableEntry(GLFW.active.dropFunc)(GLFW.active.id, count, filenames);
    
                for (var i = 0; i < filenamesArray.length; ++i) {
                  _free(filenamesArray[i]);
                }
                _free(filenames);
              }
            };
            reader.readAsArrayBuffer(file);
    
            var filename = allocate(intArrayFromString(path), ALLOC_NORMAL);
            filenamesArray.push(filename);
            setValue(filenames + i*4, filename, 'i8*');
          }
    
          for (var i = 0; i < count; ++i) {
            save(event.dataTransfer.files[i]);
          }
    
          return false;
        },onDragover:function(event) {
          if (!GLFW.active || !GLFW.active.dropFunc) return;
    
          event.preventDefault();
          return false;
        },setWindowSizeCallback:function(winid, cbfun) {
          var win = GLFW.WindowFromId(winid);
          if (!win) return null;
          var prevcbfun = win.windowSizeFunc;
          win.windowSizeFunc = cbfun;
    
          return prevcbfun;
        },setWindowCloseCallback:function(winid, cbfun) {
          var win = GLFW.WindowFromId(winid);
          if (!win) return null;
          var prevcbfun = win.windowCloseFunc;
          win.windowCloseFunc = cbfun;
          return prevcbfun;
        },setWindowRefreshCallback:function(winid, cbfun) {
          var win = GLFW.WindowFromId(winid);
          if (!win) return null;
          var prevcbfun = win.windowRefreshFunc;
          win.windowRefreshFunc = cbfun;
          return prevcbfun;
        },onClickRequestPointerLock:function(e) {
          if (!Browser.pointerLock && Module['canvas'].requestPointerLock) {
            Module['canvas'].requestPointerLock();
            e.preventDefault();
          }
        },setInputMode:function(winid, mode, value) {
          var win = GLFW.WindowFromId(winid);
          if (!win) return;
    
          switch (mode) {
            case 0x00033001: { // GLFW_CURSOR
              switch (value) {
                case 0x00034001: { // GLFW_CURSOR_NORMAL
                  win.inputModes[mode] = value;
                  Module['canvas'].removeEventListener('click', GLFW.onClickRequestPointerLock, true);
                  Module['canvas'].exitPointerLock();
                  break;
                }
                case 0x00034002: { // GLFW_CURSOR_HIDDEN
                  out("glfwSetInputMode called with GLFW_CURSOR_HIDDEN value not implemented.");
                  break;
                }
                case 0x00034003: { // GLFW_CURSOR_DISABLED
                  win.inputModes[mode] = value;
                  Module['canvas'].addEventListener('click', GLFW.onClickRequestPointerLock, true);
                  Module['canvas'].requestPointerLock();
                  break;
                }
                default: {
                  out("glfwSetInputMode called with unknown value parameter value: " + value + ".");
                  break;
                }
              }
              break;
            }
            case 0x00033002: { // GLFW_STICKY_KEYS
              out("glfwSetInputMode called with GLFW_STICKY_KEYS mode not implemented.");
              break;
            }
            case 0x00033003: { // GLFW_STICKY_MOUSE_BUTTONS
              out("glfwSetInputMode called with GLFW_STICKY_MOUSE_BUTTONS mode not implemented.");
              break;
            }
            default: {
              out("glfwSetInputMode called with unknown mode parameter value: " + mode + ".");
              break;
            }
          }
        },getKey:function(winid, key) {
          var win = GLFW.WindowFromId(winid);
          if (!win) return 0;
          return win.keys[key];
        },getMouseButton:function(winid, button) {
          var win = GLFW.WindowFromId(winid);
          if (!win) return 0;
          return (win.buttons & (1 << button)) > 0;
        },getCursorPos:function(winid, x, y) {
          setValue(x, Browser.mouseX, 'double');
          setValue(y, Browser.mouseY, 'double');
        },getMousePos:function(winid, x, y) {
          setValue(x, Browser.mouseX, 'i32');
          setValue(y, Browser.mouseY, 'i32');
        },setCursorPos:function(winid, x, y) {
        },getWindowPos:function(winid, x, y) {
          var wx = 0;
          var wy = 0;
    
          var win = GLFW.WindowFromId(winid);
          if (win) {
            wx = win.x;
            wy = win.y;
          }
    
          if (x) {
            setValue(x, wx, 'i32');
          }
    
          if (y) {
            setValue(y, wy, 'i32');
          }
        },setWindowPos:function(winid, x, y) {
          var win = GLFW.WindowFromId(winid);
          if (!win) return;
          win.x = x;
          win.y = y;
        },getWindowSize:function(winid, width, height) {
          var ww = 0;
          var wh = 0;
    
          var win = GLFW.WindowFromId(winid);
          if (win) {
            ww = win.width;
            wh = win.height;
          }
    
          if (width) {
            setValue(width, ww, 'i32');
          }
    
          if (height) {
            setValue(height, wh, 'i32');
          }
        },setWindowSize:function(winid, width, height) {
          var win = GLFW.WindowFromId(winid);
          if (!win) return;
    
          if (GLFW.active.id == win.id) {
            if (width == screen.width && height == screen.height) {
              Browser.requestFullscreen();
            } else {
              Browser.exitFullscreen();
              Browser.setCanvasSize(width, height);
              win.width = width;
              win.height = height;
            }
          }
    
          if (!win.windowSizeFunc) return;
    
          getWasmTableEntry(win.windowSizeFunc)(win.id, width, height);
        },createWindow:function(width, height, title, monitor, share) {
          var i, id;
          for (i = 0; i < GLFW.windows.length && GLFW.windows[i] !== null; i++) {
            // no-op
          }
          if (i > 0) throw "glfwCreateWindow only supports one window at time currently";
    
          // id for window
          id = i + 1;
    
          // not valid
          if (width <= 0 || height <= 0) return 0;
    
          if (monitor) {
            Browser.requestFullscreen();
          } else {
            Browser.setCanvasSize(width, height);
          }
    
          // Create context when there are no existing alive windows
          for (i = 0; i < GLFW.windows.length && GLFW.windows[i] == null; i++) {
            // no-op
          }
          var useWebGL = GLFW.hints[0x00022001] > 0; // Use WebGL when we are told to based on GLFW_CLIENT_API
          if (i == GLFW.windows.length) {
            if (useWebGL) {
              var contextAttributes = {
                antialias: (GLFW.hints[0x0002100D] > 1), // GLFW_SAMPLES
                depth: (GLFW.hints[0x00021005] > 0),     // GLFW_DEPTH_BITS
                stencil: (GLFW.hints[0x00021006] > 0),   // GLFW_STENCIL_BITS
                alpha: (GLFW.hints[0x00021004] > 0)      // GLFW_ALPHA_BITS
              }
              Module.ctx = Browser.createContext(Module['canvas'], true, true, contextAttributes);
            } else {
              Browser.init();
            }
          }
    
          // If context creation failed, do not return a valid window
          if (!Module.ctx && useWebGL) return 0;
    
          // Get non alive id
          var win = new GLFW_Window(id, width, height, title, monitor, share);
    
          // Set window to array
          if (id - 1 == GLFW.windows.length) {
            GLFW.windows.push(win);
          } else {
            GLFW.windows[id - 1] = win;
          }
    
          GLFW.active = win;
          return win.id;
        },destroyWindow:function(winid) {
          var win = GLFW.WindowFromId(winid);
          if (!win) return;
    
          if (win.windowCloseFunc)
            getWasmTableEntry(win.windowCloseFunc)(win.id);
    
          GLFW.windows[win.id - 1] = null;
          if (GLFW.active.id == win.id)
            GLFW.active = null;
    
          // Destroy context when no alive windows
          for (var i = 0; i < GLFW.windows.length; i++)
            if (GLFW.windows[i] !== null) return;
    
          Module.ctx = Browser.destroyContext(Module['canvas'], true, true);
        },swapBuffers:function(winid) {
        },GLFW2ParamToGLFW3Param:function(param) {
          var table = {
            0x00030001:0, // GLFW_MOUSE_CURSOR
            0x00030002:0, // GLFW_STICKY_KEYS
            0x00030003:0, // GLFW_STICKY_MOUSE_BUTTONS
            0x00030004:0, // GLFW_SYSTEM_KEYS
            0x00030005:0, // GLFW_KEY_REPEAT
            0x00030006:0, // GLFW_AUTO_POLL_EVENTS
            0x00020001:0, // GLFW_OPENED
            0x00020002:0, // GLFW_ACTIVE
            0x00020003:0, // GLFW_ICONIFIED
            0x00020004:0, // GLFW_ACCELERATED
            0x00020005:0x00021001, // GLFW_RED_BITS
            0x00020006:0x00021002, // GLFW_GREEN_BITS
            0x00020007:0x00021003, // GLFW_BLUE_BITS
            0x00020008:0x00021004, // GLFW_ALPHA_BITS
            0x00020009:0x00021005, // GLFW_DEPTH_BITS
            0x0002000A:0x00021006, // GLFW_STENCIL_BITS
            0x0002000B:0x0002100F, // GLFW_REFRESH_RATE
            0x0002000C:0x00021007, // GLFW_ACCUM_RED_BITS
            0x0002000D:0x00021008, // GLFW_ACCUM_GREEN_BITS
            0x0002000E:0x00021009, // GLFW_ACCUM_BLUE_BITS
            0x0002000F:0x0002100A, // GLFW_ACCUM_ALPHA_BITS
            0x00020010:0x0002100B, // GLFW_AUX_BUFFERS
            0x00020011:0x0002100C, // GLFW_STEREO
            0x00020012:0, // GLFW_WINDOW_NO_RESIZE
            0x00020013:0x0002100D, // GLFW_FSAA_SAMPLES
            0x00020014:0x00022002, // GLFW_OPENGL_VERSION_MAJOR
            0x00020015:0x00022003, // GLFW_OPENGL_VERSION_MINOR
            0x00020016:0x00022006, // GLFW_OPENGL_FORWARD_COMPAT
            0x00020017:0x00022007, // GLFW_OPENGL_DEBUG_CONTEXT
            0x00020018:0x00022008, // GLFW_OPENGL_PROFILE
          };
          return table[param];
        }};
    function _glfwCreateWindow(width, height, title, monitor, share) {
        return GLFW.createWindow(width, height, title, monitor, share);
      }
  
    function _glfwDestroyWindow(winid) {
        return GLFW.destroyWindow(winid);
      }
  
    function _glfwGetCursorPos(winid, x, y) {
        GLFW.getCursorPos(winid, x, y);
      }
  
    function _glfwGetWindowSize(winid, width, height) {
        GLFW.getWindowSize(winid, width, height);
      }
  
    function _glfwGetWindowUserPointer(winid) {
        var win = GLFW.WindowFromId(winid);
        if (!win) return 0;
        return win.userptr;
      }
  
    function _glfwInit() {
        if (GLFW.windows) return 1; // GL_TRUE
    
        GLFW.initialTime = GLFW.getTime();
        GLFW.hints = GLFW.defaultHints;
        GLFW.windows = new Array()
        GLFW.active = null;
    
        window.addEventListener("gamepadconnected", GLFW.onGamepadConnected, true);
        window.addEventListener("gamepaddisconnected", GLFW.onGamepadDisconnected, true);
        window.addEventListener("keydown", GLFW.onKeydown, true);
        window.addEventListener("keypress", GLFW.onKeyPress, true);
        window.addEventListener("keyup", GLFW.onKeyup, true);
        window.addEventListener("blur", GLFW.onBlur, true);
        Module["canvas"].addEventListener("touchmove", GLFW.onMousemove, true);
        Module["canvas"].addEventListener("touchstart", GLFW.onMouseButtonDown, true);
        Module["canvas"].addEventListener("touchcancel", GLFW.onMouseButtonUp, true);
        Module["canvas"].addEventListener("touchend", GLFW.onMouseButtonUp, true);
        Module["canvas"].addEventListener("mousemove", GLFW.onMousemove, true);
        Module["canvas"].addEventListener("mousedown", GLFW.onMouseButtonDown, true);
        Module["canvas"].addEventListener("mouseup", GLFW.onMouseButtonUp, true);
        Module["canvas"].addEventListener('wheel', GLFW.onMouseWheel, true);
        Module["canvas"].addEventListener('mousewheel', GLFW.onMouseWheel, true);
        Module["canvas"].addEventListener('mouseenter', GLFW.onMouseenter, true);
        Module["canvas"].addEventListener('mouseleave', GLFW.onMouseleave, true);
        Module["canvas"].addEventListener('drop', GLFW.onDrop, true);
        Module["canvas"].addEventListener('dragover', GLFW.onDragover, true);
    
        Browser.resizeListeners.push(function(width, height) {
           GLFW.onCanvasResize(width, height);
        });
        return 1; // GL_TRUE
      }
  
    function _glfwMakeContextCurrent(winid) {}
  
    function _glfwPollEvents() {}
  
    function _glfwSetCursorPosCallback(winid, cbfun) {
        return GLFW.setCursorPosCallback(winid, cbfun);
      }
  
    function _glfwSetErrorCallback(cbfun) {
        var prevcbfun = GLFW.errorFunc;
        GLFW.errorFunc = cbfun;
        return prevcbfun;
      }
  
    function _glfwSetFramebufferSizeCallback(winid, cbfun) {
        var win = GLFW.WindowFromId(winid);
        if (!win) return null;
        var prevcbfun = win.framebufferSizeFunc;
        win.framebufferSizeFunc = cbfun;
        return prevcbfun;
      }
  
    function _glfwSetKeyCallback(winid, cbfun) {
        return GLFW.setKeyCallback(winid, cbfun);
      }
  
    function _glfwSetMouseButtonCallback(winid, cbfun) {
        return GLFW.setMouseButtonCallback(winid, cbfun);
      }
  
    function _glfwSetScrollCallback(winid, cbfun) {
        return GLFW.setScrollCallback(winid, cbfun);
      }
  
    function _glfwSetWindowShouldClose(winid, value) {
        var win = GLFW.WindowFromId(winid);
        if (!win) return;
        win.shouldClose = value;
      }
  
    function _glfwSetWindowUserPointer(winid, ptr) {
        var win = GLFW.WindowFromId(winid);
        if (!win) return;
        win.userptr = ptr;
      }
  
    function _glfwSwapBuffers(winid) {
        GLFW.swapBuffers(winid);
      }
  
    function _glfwTerminate() {
        window.removeEventListener("gamepadconnected", GLFW.onGamepadConnected, true);
        window.removeEventListener("gamepaddisconnected", GLFW.onGamepadDisconnected, true);
        window.removeEventListener("keydown", GLFW.onKeydown, true);
        window.removeEventListener("keypress", GLFW.onKeyPress, true);
        window.removeEventListener("keyup", GLFW.onKeyup, true);
        window.removeEventListener("blur", GLFW.onBlur, true);
        Module["canvas"].removeEventListener("touchmove", GLFW.onMousemove, true);
        Module["canvas"].removeEventListener("touchstart", GLFW.onMouseButtonDown, true);
        Module["canvas"].removeEventListener("touchcancel", GLFW.onMouseButtonUp, true);
        Module["canvas"].removeEventListener("touchend", GLFW.onMouseButtonUp, true);
        Module["canvas"].removeEventListener("mousemove", GLFW.onMousemove, true);
        Module["canvas"].removeEventListener("mousedown", GLFW.onMouseButtonDown, true);
        Module["canvas"].removeEventListener("mouseup", GLFW.onMouseButtonUp, true);
        Module["canvas"].removeEventListener('wheel', GLFW.onMouseWheel, true);
        Module["canvas"].removeEventListener('mousewheel', GLFW.onMouseWheel, true);
        Module["canvas"].removeEventListener('mouseenter', GLFW.onMouseenter, true);
        Module["canvas"].removeEventListener('mouseleave', GLFW.onMouseleave, true);
        Module["canvas"].removeEventListener('drop', GLFW.onDrop, true);
        Module["canvas"].removeEventListener('dragover', GLFW.onDragover, true);
    
        Module["canvas"].width = Module["canvas"].height = 1;
        GLFW.windows = null;
        GLFW.active = null;
      }
  
    function _glfwWindowHint(target, hint) {
        GLFW.hints[target] = hint;
      }
  
    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) {
            // Replaced by the week number of the year as a decimal number [00,53].
            // The first Sunday of January is the first day of week 1;
            // days in the new year before this are in week 0. [ tm_year, tm_wday, tm_yday]
            var janFirst = new Date(date.tm_year+1900, 0, 1);
            var firstSunday = janFirst.getDay() === 0 ? janFirst : __addDays(janFirst, 7-janFirst.getDay());
            var endDate = new Date(date.tm_year+1900, date.tm_mon, date.tm_mday);
    
            // is target date after the first Sunday?
            if (compareByDay(firstSunday, endDate) < 0) {
              // calculate difference in days between first Sunday and endDate
              var februaryFirstUntilEndMonth = __arraySum(__isLeapYear(endDate.getFullYear()) ? __MONTH_DAYS_LEAP : __MONTH_DAYS_REGULAR, endDate.getMonth()-1)-31;
              var firstSundayUntilEndJanuary = 31-firstSunday.getDate();
              var days = firstSundayUntilEndJanuary+februaryFirstUntilEndMonth+endDate.getDate();
              return leadingNulls(Math.ceil(days/7), 2);
            }
    
            return compareByDay(firstSunday, janFirst) === 0 ? '01': '00';
          },
          '%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 janFourthThisYear = new Date(date.tm_year+1900, 0, 4);
            var janFourthNextYear = new Date(date.tm_year+1901, 0, 4);
    
            var firstWeekStartThisYear = getFirstWeekStartDate(janFourthThisYear);
            var firstWeekStartNextYear = getFirstWeekStartDate(janFourthNextYear);
    
            var endDate = __addDays(new Date(date.tm_year+1900, 0, 1), date.tm_yday);
    
            if (compareByDay(endDate, firstWeekStartThisYear) < 0) {
              // if given date is before this years first week, then it belongs to the 53rd week of last year
              return '53';
            }
    
            if (compareByDay(firstWeekStartNextYear, endDate) <= 0) {
              // if given date is after next years first week, then it belongs to the 01th week of next year
              return '01';
            }
    
            // given date is in between CW 01..53 of this calendar year
            var daysDifference;
            if (firstWeekStartThisYear.getFullYear() < date.tm_year+1900) {
              // first CW of this year starts last year
              daysDifference = date.tm_yday+32-firstWeekStartThisYear.getDate()
            } else {
              // first CW of this year starts this year
              daysDifference = date.tm_yday+1-firstWeekStartThisYear.getDate();
            }
            return leadingNulls(Math.ceil(daysDifference/7), 2);
          },
          '%w': function(date) {
            return date.tm_wday;
          },
          '%W': function(date) {
            // Replaced by the week number of the year as a decimal number [00,53].
            // The first Monday of January is the first day of week 1;
            // days in the new year before this are in week 0. [ tm_year, tm_wday, tm_yday]
            var janFirst = new Date(date.tm_year, 0, 1);
            var firstMonday = janFirst.getDay() === 1 ? janFirst : __addDays(janFirst, janFirst.getDay() === 0 ? 1 : 7-janFirst.getDay()+1);
            var endDate = new Date(date.tm_year+1900, date.tm_mon, date.tm_mday);
    
            // is target date after the first Monday?
            if (compareByDay(firstMonday, endDate) < 0) {
              var februaryFirstUntilEndMonth = __arraySum(__isLeapYear(endDate.getFullYear()) ? __MONTH_DAYS_LEAP : __MONTH_DAYS_REGULAR, endDate.getMonth()-1)-31;
              var firstMondayUntilEndJanuary = 31-firstMonday.getDate();
              var days = firstMondayUntilEndJanuary+februaryFirstUntilEndMonth+endDate.getDate();
              return leadingNulls(Math.ceil(days/7), 2);
            }
            return compareByDay(firstMonday, janFirst) === 0 ? '01': '00';
          },
          '%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 '%';
          }
        };
        for (var rule in EXPANSION_RULES_2) {
          if (pattern.includes(rule)) {
            pattern = pattern.replace(new RegExp(rule, 'g'), EXPANSION_RULES_2[rule](date));
          }
        }
    
        var bytes = intArrayFromString(pattern, false);
        if (bytes.length > maxsize) {
          return 0;
        }
    
        writeArrayToMemory(bytes, s);
        return bytes.length-1;
      }
    function _strftime_l(s, maxsize, format, tm) {
        return _strftime(s, maxsize, format, tm); // no locale support yet
      }
  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 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();;
  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,
      };;
  var GLctx;;
  var miniTempWebGLFloatBuffersStorage = new Float32Array(288);
    for (/**@suppress{duplicate}*/var i = 0; i < 288; ++i) {
    miniTempWebGLFloatBuffers[i] = miniTempWebGLFloatBuffersStorage.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('');
  }
  
  
  var asmLibraryArg = {
    "__assert_fail": ___assert_fail,
    "__cxa_allocate_exception": ___cxa_allocate_exception,
    "__cxa_atexit": ___cxa_atexit,
    "__cxa_throw": ___cxa_throw,
    "abort": _abort,
    "emscripten_memcpy_big": _emscripten_memcpy_big,
    "emscripten_resize_heap": _emscripten_resize_heap,
    "emscripten_set_main_loop_arg": _emscripten_set_main_loop_arg,
    "environ_get": _environ_get,
    "environ_sizes_get": _environ_sizes_get,
    "exit": _exit,
    "fd_close": _fd_close,
    "fd_read": _fd_read,
    "fd_seek": _fd_seek,
    "fd_write": _fd_write,
    "glActiveTexture": _glActiveTexture,
    "glAttachShader": _glAttachShader,
    "glBindBuffer": _glBindBuffer,
    "glBindFramebuffer": _glBindFramebuffer,
    "glBindTexture": _glBindTexture,
    "glBindVertexArray": _glBindVertexArray,
    "glBufferData": _glBufferData,
    "glCheckFramebufferStatus": _glCheckFramebufferStatus,
    "glClear": _glClear,
    "glClearColor": _glClearColor,
    "glCompileShader": _glCompileShader,
    "glCreateProgram": _glCreateProgram,
    "glCreateShader": _glCreateShader,
    "glDeleteBuffers": _glDeleteBuffers,
    "glDeleteShader": _glDeleteShader,
    "glDeleteTextures": _glDeleteTextures,
    "glDisable": _glDisable,
    "glDrawArrays": _glDrawArrays,
    "glDrawElements": _glDrawElements,
    "glEnable": _glEnable,
    "glEnableVertexAttribArray": _glEnableVertexAttribArray,
    "glFramebufferTexture2D": _glFramebufferTexture2D,
    "glGenBuffers": _glGenBuffers,
    "glGenFramebuffers": _glGenFramebuffers,
    "glGenTextures": _glGenTextures,
    "glGenVertexArrays": _glGenVertexArrays,
    "glGetIntegerv": _glGetIntegerv,
    "glGetProgramInfoLog": _glGetProgramInfoLog,
    "glGetProgramiv": _glGetProgramiv,
    "glGetShaderInfoLog": _glGetShaderInfoLog,
    "glGetShaderiv": _glGetShaderiv,
    "glGetUniformLocation": _glGetUniformLocation,
    "glIsBuffer": _glIsBuffer,
    "glIsProgram": _glIsProgram,
    "glIsVertexArray": _glIsVertexArray,
    "glLineWidth": _glLineWidth,
    "glLinkProgram": _glLinkProgram,
    "glPolygonOffset": _glPolygonOffset,
    "glShaderSource": _glShaderSource,
    "glTexImage2D": _glTexImage2D,
    "glTexParameteri": _glTexParameteri,
    "glUniform1i": _glUniform1i,
    "glUniform3f": _glUniform3f,
    "glUniformMatrix4fv": _glUniformMatrix4fv,
    "glUseProgram": _glUseProgram,
    "glVertexAttribPointer": _glVertexAttribPointer,
    "glViewport": _glViewport,
    "glfwCreateWindow": _glfwCreateWindow,
    "glfwDestroyWindow": _glfwDestroyWindow,
    "glfwGetCursorPos": _glfwGetCursorPos,
    "glfwGetWindowSize": _glfwGetWindowSize,
    "glfwGetWindowUserPointer": _glfwGetWindowUserPointer,
    "glfwInit": _glfwInit,
    "glfwMakeContextCurrent": _glfwMakeContextCurrent,
    "glfwPollEvents": _glfwPollEvents,
    "glfwSetCursorPosCallback": _glfwSetCursorPosCallback,
    "glfwSetErrorCallback": _glfwSetErrorCallback,
    "glfwSetFramebufferSizeCallback": _glfwSetFramebufferSizeCallback,
    "glfwSetKeyCallback": _glfwSetKeyCallback,
    "glfwSetMouseButtonCallback": _glfwSetMouseButtonCallback,
    "glfwSetScrollCallback": _glfwSetScrollCallback,
    "glfwSetWindowShouldClose": _glfwSetWindowShouldClose,
    "glfwSetWindowUserPointer": _glfwSetWindowUserPointer,
    "glfwSwapBuffers": _glfwSwapBuffers,
    "glfwTerminate": _glfwTerminate,
    "glfwWindowHint": _glfwWindowHint,
    "setTempRet0": _setTempRet0,
    "strftime_l": _strftime_l
  };
  var asm = createWasm();
  /** @type {function(...*):?} */
  var ___wasm_call_ctors = Module["___wasm_call_ctors"] = createExportWrapper("__wasm_call_ctors");
  
  /** @type {function(...*):?} */
  var _main = Module["_main"] = createExportWrapper("main");
  
  /** @type {function(...*):?} */
  var ___errno_location = Module["___errno_location"] = createExportWrapper("__errno_location");
  
  /** @type {function(...*):?} */
  var _fflush = Module["_fflush"] = createExportWrapper("fflush");
  
  /** @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 _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_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 _free = Module["_free"] = createExportWrapper("free");
  
  /** @type {function(...*):?} */
  var _malloc = Module["_malloc"] = createExportWrapper("malloc");
  
  /** @type {function(...*):?} */
  var dynCall_jiji = Module["dynCall_jiji"] = createExportWrapper("dynCall_jiji");
  
  /** @type {function(...*):?} */
  var dynCall_iiiiij = Module["dynCall_iiiiij"] = createExportWrapper("dynCall_iiiiij");
  
  /** @type {function(...*):?} */
  var dynCall_iiiiijj = Module["dynCall_iiiiijj"] = createExportWrapper("dynCall_iiiiijj");
  
  /** @type {function(...*):?} */
  var dynCall_iiiiiijj = Module["dynCall_iiiiiijj"] = createExportWrapper("dynCall_iiiiiijj");
  
  /** @type {function(...*):?} */
  var dynCall_viijii = Module["dynCall_viijii"] = createExportWrapper("dynCall_viijii");
  
  
  
  
  
  // === Auto-generated postamble setup entry stuff ===
  
  if (!Object.getOwnPropertyDescriptor(Module, "intArrayFromString")) Module["intArrayFromString"] = function() { abort("'intArrayFromString' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "intArrayToString")) Module["intArrayToString"] = function() { abort("'intArrayToString' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "ccall")) Module["ccall"] = function() { abort("'ccall' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "cwrap")) Module["cwrap"] = function() { abort("'cwrap' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "setValue")) Module["setValue"] = function() { abort("'setValue' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "getValue")) Module["getValue"] = function() { abort("'getValue' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "allocate")) Module["allocate"] = function() { abort("'allocate' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "UTF8ArrayToString")) Module["UTF8ArrayToString"] = function() { abort("'UTF8ArrayToString' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "UTF8ToString")) Module["UTF8ToString"] = function() { abort("'UTF8ToString' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "stringToUTF8Array")) Module["stringToUTF8Array"] = function() { abort("'stringToUTF8Array' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "stringToUTF8")) Module["stringToUTF8"] = function() { abort("'stringToUTF8' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "lengthBytesUTF8")) Module["lengthBytesUTF8"] = function() { abort("'lengthBytesUTF8' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "stackTrace")) Module["stackTrace"] = function() { abort("'stackTrace' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "addOnPreRun")) Module["addOnPreRun"] = function() { abort("'addOnPreRun' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "addOnInit")) Module["addOnInit"] = function() { abort("'addOnInit' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "addOnPreMain")) Module["addOnPreMain"] = function() { abort("'addOnPreMain' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "addOnExit")) Module["addOnExit"] = function() { abort("'addOnExit' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "addOnPostRun")) Module["addOnPostRun"] = function() { abort("'addOnPostRun' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "writeStringToMemory")) Module["writeStringToMemory"] = function() { abort("'writeStringToMemory' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "writeArrayToMemory")) Module["writeArrayToMemory"] = function() { abort("'writeArrayToMemory' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "writeAsciiToMemory")) Module["writeAsciiToMemory"] = function() { abort("'writeAsciiToMemory' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "addRunDependency")) Module["addRunDependency"] = function() { abort("'addRunDependency' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ). Alternatively, forcing filesystem support (-s FORCE_FILESYSTEM=1) can export this for you") };
  if (!Object.getOwnPropertyDescriptor(Module, "removeRunDependency")) Module["removeRunDependency"] = function() { abort("'removeRunDependency' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ). Alternatively, forcing filesystem support (-s FORCE_FILESYSTEM=1) can export this for you") };
  if (!Object.getOwnPropertyDescriptor(Module, "FS_createFolder")) Module["FS_createFolder"] = function() { abort("'FS_createFolder' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "FS_createPath")) Module["FS_createPath"] = function() { abort("'FS_createPath' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ). Alternatively, forcing filesystem support (-s FORCE_FILESYSTEM=1) can export this for you") };
  if (!Object.getOwnPropertyDescriptor(Module, "FS_createDataFile")) Module["FS_createDataFile"] = function() { abort("'FS_createDataFile' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ). Alternatively, forcing filesystem support (-s FORCE_FILESYSTEM=1) can export this for you") };
  if (!Object.getOwnPropertyDescriptor(Module, "FS_createPreloadedFile")) Module["FS_createPreloadedFile"] = function() { abort("'FS_createPreloadedFile' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ). Alternatively, forcing filesystem support (-s FORCE_FILESYSTEM=1) can export this for you") };
  if (!Object.getOwnPropertyDescriptor(Module, "FS_createLazyFile")) Module["FS_createLazyFile"] = function() { abort("'FS_createLazyFile' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ). Alternatively, forcing filesystem support (-s FORCE_FILESYSTEM=1) can export this for you") };
  if (!Object.getOwnPropertyDescriptor(Module, "FS_createLink")) Module["FS_createLink"] = function() { abort("'FS_createLink' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "FS_createDevice")) Module["FS_createDevice"] = function() { abort("'FS_createDevice' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ). Alternatively, forcing filesystem support (-s FORCE_FILESYSTEM=1) can export this for you") };
  if (!Object.getOwnPropertyDescriptor(Module, "FS_unlink")) Module["FS_unlink"] = function() { abort("'FS_unlink' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ). Alternatively, forcing filesystem support (-s FORCE_FILESYSTEM=1) can export this for you") };
  if (!Object.getOwnPropertyDescriptor(Module, "getLEB")) Module["getLEB"] = function() { abort("'getLEB' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "getFunctionTables")) Module["getFunctionTables"] = function() { abort("'getFunctionTables' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "alignFunctionTables")) Module["alignFunctionTables"] = function() { abort("'alignFunctionTables' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "registerFunctions")) Module["registerFunctions"] = function() { abort("'registerFunctions' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "addFunction")) Module["addFunction"] = function() { abort("'addFunction' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "removeFunction")) Module["removeFunction"] = function() { abort("'removeFunction' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "getFuncWrapper")) Module["getFuncWrapper"] = function() { abort("'getFuncWrapper' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "prettyPrint")) Module["prettyPrint"] = function() { abort("'prettyPrint' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "dynCall")) Module["dynCall"] = function() { abort("'dynCall' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "getCompilerSetting")) Module["getCompilerSetting"] = function() { abort("'getCompilerSetting' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "print")) Module["print"] = function() { abort("'print' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "printErr")) Module["printErr"] = function() { abort("'printErr' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "getTempRet0")) Module["getTempRet0"] = function() { abort("'getTempRet0' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "setTempRet0")) Module["setTempRet0"] = function() { abort("'setTempRet0' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "callMain")) Module["callMain"] = function() { abort("'callMain' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "abort")) Module["abort"] = function() { abort("'abort' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "keepRuntimeAlive")) Module["keepRuntimeAlive"] = function() { abort("'keepRuntimeAlive' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "zeroMemory")) Module["zeroMemory"] = function() { abort("'zeroMemory' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "stringToNewUTF8")) Module["stringToNewUTF8"] = function() { abort("'stringToNewUTF8' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "setFileTime")) Module["setFileTime"] = function() { abort("'setFileTime' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "abortOnCannotGrowMemory")) Module["abortOnCannotGrowMemory"] = function() { abort("'abortOnCannotGrowMemory' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "emscripten_realloc_buffer")) Module["emscripten_realloc_buffer"] = function() { abort("'emscripten_realloc_buffer' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "ENV")) Module["ENV"] = function() { abort("'ENV' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "withStackSave")) Module["withStackSave"] = function() { abort("'withStackSave' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "ERRNO_CODES")) Module["ERRNO_CODES"] = function() { abort("'ERRNO_CODES' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "ERRNO_MESSAGES")) Module["ERRNO_MESSAGES"] = function() { abort("'ERRNO_MESSAGES' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "setErrNo")) Module["setErrNo"] = function() { abort("'setErrNo' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "inetPton4")) Module["inetPton4"] = function() { abort("'inetPton4' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "inetNtop4")) Module["inetNtop4"] = function() { abort("'inetNtop4' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "inetPton6")) Module["inetPton6"] = function() { abort("'inetPton6' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "inetNtop6")) Module["inetNtop6"] = function() { abort("'inetNtop6' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "readSockaddr")) Module["readSockaddr"] = function() { abort("'readSockaddr' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "writeSockaddr")) Module["writeSockaddr"] = function() { abort("'writeSockaddr' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "DNS")) Module["DNS"] = function() { abort("'DNS' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "getHostByName")) Module["getHostByName"] = function() { abort("'getHostByName' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "GAI_ERRNO_MESSAGES")) Module["GAI_ERRNO_MESSAGES"] = function() { abort("'GAI_ERRNO_MESSAGES' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "Protocols")) Module["Protocols"] = function() { abort("'Protocols' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "Sockets")) Module["Sockets"] = function() { abort("'Sockets' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "getRandomDevice")) Module["getRandomDevice"] = function() { abort("'getRandomDevice' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "traverseStack")) Module["traverseStack"] = function() { abort("'traverseStack' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "UNWIND_CACHE")) Module["UNWIND_CACHE"] = function() { abort("'UNWIND_CACHE' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "readAsmConstArgsArray")) Module["readAsmConstArgsArray"] = function() { abort("'readAsmConstArgsArray' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "readAsmConstArgs")) Module["readAsmConstArgs"] = function() { abort("'readAsmConstArgs' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "mainThreadEM_ASM")) Module["mainThreadEM_ASM"] = function() { abort("'mainThreadEM_ASM' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "jstoi_q")) Module["jstoi_q"] = function() { abort("'jstoi_q' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "jstoi_s")) Module["jstoi_s"] = function() { abort("'jstoi_s' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "getExecutableName")) Module["getExecutableName"] = function() { abort("'getExecutableName' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "listenOnce")) Module["listenOnce"] = function() { abort("'listenOnce' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "autoResumeAudioContext")) Module["autoResumeAudioContext"] = function() { abort("'autoResumeAudioContext' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "dynCallLegacy")) Module["dynCallLegacy"] = function() { abort("'dynCallLegacy' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "getDynCaller")) Module["getDynCaller"] = function() { abort("'getDynCaller' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "dynCall")) Module["dynCall"] = function() { abort("'dynCall' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "callRuntimeCallbacks")) Module["callRuntimeCallbacks"] = function() { abort("'callRuntimeCallbacks' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "wasmTableMirror")) Module["wasmTableMirror"] = function() { abort("'wasmTableMirror' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "setWasmTableEntry")) Module["setWasmTableEntry"] = function() { abort("'setWasmTableEntry' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "getWasmTableEntry")) Module["getWasmTableEntry"] = function() { abort("'getWasmTableEntry' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "handleException")) Module["handleException"] = function() { abort("'handleException' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "runtimeKeepalivePush")) Module["runtimeKeepalivePush"] = function() { abort("'runtimeKeepalivePush' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "runtimeKeepalivePop")) Module["runtimeKeepalivePop"] = function() { abort("'runtimeKeepalivePop' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "callUserCallback")) Module["callUserCallback"] = function() { abort("'callUserCallback' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "maybeExit")) Module["maybeExit"] = function() { abort("'maybeExit' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "safeSetTimeout")) Module["safeSetTimeout"] = function() { abort("'safeSetTimeout' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "asmjsMangle")) Module["asmjsMangle"] = function() { abort("'asmjsMangle' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "asyncLoad")) Module["asyncLoad"] = function() { abort("'asyncLoad' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "alignMemory")) Module["alignMemory"] = function() { abort("'alignMemory' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "mmapAlloc")) Module["mmapAlloc"] = function() { abort("'mmapAlloc' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "reallyNegative")) Module["reallyNegative"] = function() { abort("'reallyNegative' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "unSign")) Module["unSign"] = function() { abort("'unSign' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "reSign")) Module["reSign"] = function() { abort("'reSign' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "formatString")) Module["formatString"] = function() { abort("'formatString' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "PATH")) Module["PATH"] = function() { abort("'PATH' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "PATH_FS")) Module["PATH_FS"] = function() { abort("'PATH_FS' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "SYSCALLS")) Module["SYSCALLS"] = function() { abort("'SYSCALLS' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "syscallMmap2")) Module["syscallMmap2"] = function() { abort("'syscallMmap2' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "syscallMunmap")) Module["syscallMunmap"] = function() { abort("'syscallMunmap' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "getSocketFromFD")) Module["getSocketFromFD"] = function() { abort("'getSocketFromFD' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "getSocketAddress")) Module["getSocketAddress"] = function() { abort("'getSocketAddress' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "JSEvents")) Module["JSEvents"] = function() { abort("'JSEvents' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "registerKeyEventCallback")) Module["registerKeyEventCallback"] = function() { abort("'registerKeyEventCallback' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "specialHTMLTargets")) Module["specialHTMLTargets"] = function() { abort("'specialHTMLTargets' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "maybeCStringToJsString")) Module["maybeCStringToJsString"] = function() { abort("'maybeCStringToJsString' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "findEventTarget")) Module["findEventTarget"] = function() { abort("'findEventTarget' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "findCanvasEventTarget")) Module["findCanvasEventTarget"] = function() { abort("'findCanvasEventTarget' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "getBoundingClientRect")) Module["getBoundingClientRect"] = function() { abort("'getBoundingClientRect' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "fillMouseEventData")) Module["fillMouseEventData"] = function() { abort("'fillMouseEventData' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "registerMouseEventCallback")) Module["registerMouseEventCallback"] = function() { abort("'registerMouseEventCallback' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "registerWheelEventCallback")) Module["registerWheelEventCallback"] = function() { abort("'registerWheelEventCallback' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "registerUiEventCallback")) Module["registerUiEventCallback"] = function() { abort("'registerUiEventCallback' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "registerFocusEventCallback")) Module["registerFocusEventCallback"] = function() { abort("'registerFocusEventCallback' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "fillDeviceOrientationEventData")) Module["fillDeviceOrientationEventData"] = function() { abort("'fillDeviceOrientationEventData' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "registerDeviceOrientationEventCallback")) Module["registerDeviceOrientationEventCallback"] = function() { abort("'registerDeviceOrientationEventCallback' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "fillDeviceMotionEventData")) Module["fillDeviceMotionEventData"] = function() { abort("'fillDeviceMotionEventData' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "registerDeviceMotionEventCallback")) Module["registerDeviceMotionEventCallback"] = function() { abort("'registerDeviceMotionEventCallback' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "screenOrientation")) Module["screenOrientation"] = function() { abort("'screenOrientation' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "fillOrientationChangeEventData")) Module["fillOrientationChangeEventData"] = function() { abort("'fillOrientationChangeEventData' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "registerOrientationChangeEventCallback")) Module["registerOrientationChangeEventCallback"] = function() { abort("'registerOrientationChangeEventCallback' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "fillFullscreenChangeEventData")) Module["fillFullscreenChangeEventData"] = function() { abort("'fillFullscreenChangeEventData' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "registerFullscreenChangeEventCallback")) Module["registerFullscreenChangeEventCallback"] = function() { abort("'registerFullscreenChangeEventCallback' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "registerRestoreOldStyle")) Module["registerRestoreOldStyle"] = function() { abort("'registerRestoreOldStyle' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "hideEverythingExceptGivenElement")) Module["hideEverythingExceptGivenElement"] = function() { abort("'hideEverythingExceptGivenElement' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "restoreHiddenElements")) Module["restoreHiddenElements"] = function() { abort("'restoreHiddenElements' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "setLetterbox")) Module["setLetterbox"] = function() { abort("'setLetterbox' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "currentFullscreenStrategy")) Module["currentFullscreenStrategy"] = function() { abort("'currentFullscreenStrategy' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "restoreOldWindowedStyle")) Module["restoreOldWindowedStyle"] = function() { abort("'restoreOldWindowedStyle' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "softFullscreenResizeWebGLRenderTarget")) Module["softFullscreenResizeWebGLRenderTarget"] = function() { abort("'softFullscreenResizeWebGLRenderTarget' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "doRequestFullscreen")) Module["doRequestFullscreen"] = function() { abort("'doRequestFullscreen' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "fillPointerlockChangeEventData")) Module["fillPointerlockChangeEventData"] = function() { abort("'fillPointerlockChangeEventData' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "registerPointerlockChangeEventCallback")) Module["registerPointerlockChangeEventCallback"] = function() { abort("'registerPointerlockChangeEventCallback' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "registerPointerlockErrorEventCallback")) Module["registerPointerlockErrorEventCallback"] = function() { abort("'registerPointerlockErrorEventCallback' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "requestPointerLock")) Module["requestPointerLock"] = function() { abort("'requestPointerLock' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "fillVisibilityChangeEventData")) Module["fillVisibilityChangeEventData"] = function() { abort("'fillVisibilityChangeEventData' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "registerVisibilityChangeEventCallback")) Module["registerVisibilityChangeEventCallback"] = function() { abort("'registerVisibilityChangeEventCallback' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "registerTouchEventCallback")) Module["registerTouchEventCallback"] = function() { abort("'registerTouchEventCallback' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "fillGamepadEventData")) Module["fillGamepadEventData"] = function() { abort("'fillGamepadEventData' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "registerGamepadEventCallback")) Module["registerGamepadEventCallback"] = function() { abort("'registerGamepadEventCallback' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "registerBeforeUnloadEventCallback")) Module["registerBeforeUnloadEventCallback"] = function() { abort("'registerBeforeUnloadEventCallback' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "fillBatteryEventData")) Module["fillBatteryEventData"] = function() { abort("'fillBatteryEventData' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "battery")) Module["battery"] = function() { abort("'battery' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "registerBatteryEventCallback")) Module["registerBatteryEventCallback"] = function() { abort("'registerBatteryEventCallback' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "setCanvasElementSize")) Module["setCanvasElementSize"] = function() { abort("'setCanvasElementSize' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "getCanvasElementSize")) Module["getCanvasElementSize"] = function() { abort("'getCanvasElementSize' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "demangle")) Module["demangle"] = function() { abort("'demangle' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "demangleAll")) Module["demangleAll"] = function() { abort("'demangleAll' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "jsStackTrace")) Module["jsStackTrace"] = function() { abort("'jsStackTrace' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "stackTrace")) Module["stackTrace"] = function() { abort("'stackTrace' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "getEnvStrings")) Module["getEnvStrings"] = function() { abort("'getEnvStrings' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "checkWasiClock")) Module["checkWasiClock"] = function() { abort("'checkWasiClock' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "writeI53ToI64")) Module["writeI53ToI64"] = function() { abort("'writeI53ToI64' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "writeI53ToI64Clamped")) Module["writeI53ToI64Clamped"] = function() { abort("'writeI53ToI64Clamped' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "writeI53ToI64Signaling")) Module["writeI53ToI64Signaling"] = function() { abort("'writeI53ToI64Signaling' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "writeI53ToU64Clamped")) Module["writeI53ToU64Clamped"] = function() { abort("'writeI53ToU64Clamped' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "writeI53ToU64Signaling")) Module["writeI53ToU64Signaling"] = function() { abort("'writeI53ToU64Signaling' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "readI53FromI64")) Module["readI53FromI64"] = function() { abort("'readI53FromI64' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "readI53FromU64")) Module["readI53FromU64"] = function() { abort("'readI53FromU64' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "convertI32PairToI53")) Module["convertI32PairToI53"] = function() { abort("'convertI32PairToI53' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "convertU32PairToI53")) Module["convertU32PairToI53"] = function() { abort("'convertU32PairToI53' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "setImmediateWrapped")) Module["setImmediateWrapped"] = function() { abort("'setImmediateWrapped' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "clearImmediateWrapped")) Module["clearImmediateWrapped"] = function() { abort("'clearImmediateWrapped' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "polyfillSetImmediate")) Module["polyfillSetImmediate"] = function() { abort("'polyfillSetImmediate' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "uncaughtExceptionCount")) Module["uncaughtExceptionCount"] = function() { abort("'uncaughtExceptionCount' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "exceptionLast")) Module["exceptionLast"] = function() { abort("'exceptionLast' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "exceptionCaught")) Module["exceptionCaught"] = function() { abort("'exceptionCaught' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "ExceptionInfo")) Module["ExceptionInfo"] = function() { abort("'ExceptionInfo' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "CatchInfo")) Module["CatchInfo"] = function() { abort("'CatchInfo' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "exception_addRef")) Module["exception_addRef"] = function() { abort("'exception_addRef' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "exception_decRef")) Module["exception_decRef"] = function() { abort("'exception_decRef' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "Browser")) Module["Browser"] = function() { abort("'Browser' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "funcWrappers")) Module["funcWrappers"] = function() { abort("'funcWrappers' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "getFuncWrapper")) Module["getFuncWrapper"] = function() { abort("'getFuncWrapper' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "setMainLoop")) Module["setMainLoop"] = function() { abort("'setMainLoop' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "wget")) Module["wget"] = function() { abort("'wget' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "FS")) Module["FS"] = function() { abort("'FS' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "MEMFS")) Module["MEMFS"] = function() { abort("'MEMFS' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "TTY")) Module["TTY"] = function() { abort("'TTY' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "PIPEFS")) Module["PIPEFS"] = function() { abort("'PIPEFS' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "SOCKFS")) Module["SOCKFS"] = function() { abort("'SOCKFS' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "_setNetworkCallback")) Module["_setNetworkCallback"] = function() { abort("'_setNetworkCallback' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "tempFixedLengthArray")) Module["tempFixedLengthArray"] = function() { abort("'tempFixedLengthArray' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "miniTempWebGLFloatBuffers")) Module["miniTempWebGLFloatBuffers"] = function() { abort("'miniTempWebGLFloatBuffers' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "heapObjectForWebGLType")) Module["heapObjectForWebGLType"] = function() { abort("'heapObjectForWebGLType' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "heapAccessShiftForWebGLHeap")) Module["heapAccessShiftForWebGLHeap"] = function() { abort("'heapAccessShiftForWebGLHeap' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "GL")) Module["GL"] = function() { abort("'GL' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "emscriptenWebGLGet")) Module["emscriptenWebGLGet"] = function() { abort("'emscriptenWebGLGet' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "computeUnpackAlignedImageSize")) Module["computeUnpackAlignedImageSize"] = function() { abort("'computeUnpackAlignedImageSize' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "emscriptenWebGLGetTexPixelData")) Module["emscriptenWebGLGetTexPixelData"] = function() { abort("'emscriptenWebGLGetTexPixelData' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "emscriptenWebGLGetUniform")) Module["emscriptenWebGLGetUniform"] = function() { abort("'emscriptenWebGLGetUniform' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "webglGetUniformLocation")) Module["webglGetUniformLocation"] = function() { abort("'webglGetUniformLocation' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "webglPrepareUniformLocationsBeforeFirstUse")) Module["webglPrepareUniformLocationsBeforeFirstUse"] = function() { abort("'webglPrepareUniformLocationsBeforeFirstUse' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "webglGetLeftBracePos")) Module["webglGetLeftBracePos"] = function() { abort("'webglGetLeftBracePos' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "emscriptenWebGLGetVertexAttrib")) Module["emscriptenWebGLGetVertexAttrib"] = function() { abort("'emscriptenWebGLGetVertexAttrib' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "writeGLArray")) Module["writeGLArray"] = function() { abort("'writeGLArray' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "AL")) Module["AL"] = function() { abort("'AL' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "SDL_unicode")) Module["SDL_unicode"] = function() { abort("'SDL_unicode' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "SDL_ttfContext")) Module["SDL_ttfContext"] = function() { abort("'SDL_ttfContext' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "SDL_audio")) Module["SDL_audio"] = function() { abort("'SDL_audio' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "SDL")) Module["SDL"] = function() { abort("'SDL' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "SDL_gfx")) Module["SDL_gfx"] = function() { abort("'SDL_gfx' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "GLUT")) Module["GLUT"] = function() { abort("'GLUT' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "EGL")) Module["EGL"] = function() { abort("'EGL' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "GLFW_Window")) Module["GLFW_Window"] = function() { abort("'GLFW_Window' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "GLFW")) Module["GLFW"] = function() { abort("'GLFW' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "GLEW")) Module["GLEW"] = function() { abort("'GLEW' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "IDBStore")) Module["IDBStore"] = function() { abort("'IDBStore' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "runAndAbortIfError")) Module["runAndAbortIfError"] = function() { abort("'runAndAbortIfError' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "emscriptenWebGLGetIndexed")) Module["emscriptenWebGLGetIndexed"] = function() { abort("'emscriptenWebGLGetIndexed' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "warnOnce")) Module["warnOnce"] = function() { abort("'warnOnce' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "stackSave")) Module["stackSave"] = function() { abort("'stackSave' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "stackRestore")) Module["stackRestore"] = function() { abort("'stackRestore' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "stackAlloc")) Module["stackAlloc"] = function() { abort("'stackAlloc' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "AsciiToString")) Module["AsciiToString"] = function() { abort("'AsciiToString' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "stringToAscii")) Module["stringToAscii"] = function() { abort("'stringToAscii' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "UTF16ToString")) Module["UTF16ToString"] = function() { abort("'UTF16ToString' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "stringToUTF16")) Module["stringToUTF16"] = function() { abort("'stringToUTF16' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "lengthBytesUTF16")) Module["lengthBytesUTF16"] = function() { abort("'lengthBytesUTF16' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "UTF32ToString")) Module["UTF32ToString"] = function() { abort("'UTF32ToString' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "stringToUTF32")) Module["stringToUTF32"] = function() { abort("'stringToUTF32' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "lengthBytesUTF32")) Module["lengthBytesUTF32"] = function() { abort("'lengthBytesUTF32' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "allocateUTF8")) Module["allocateUTF8"] = function() { abort("'allocateUTF8' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  if (!Object.getOwnPropertyDescriptor(Module, "allocateUTF8OnStack")) Module["allocateUTF8OnStack"] = function() { abort("'allocateUTF8OnStack' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") };
  Module["writeStackCookie"] = writeStackCookie;
  Module["checkStackCookie"] = checkStackCookie;
  if (!Object.getOwnPropertyDescriptor(Module, "ALLOC_NORMAL")) Object.defineProperty(Module, "ALLOC_NORMAL", { configurable: true, get: function() { abort("'ALLOC_NORMAL' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") } });
  if (!Object.getOwnPropertyDescriptor(Module, "ALLOC_STACK")) Object.defineProperty(Module, "ALLOC_STACK", { configurable: true, get: function() { abort("'ALLOC_STACK' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)") } });
  
  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();
  
      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 = function(x) {
      has = true;
    }
    try { // it doesn't matter if it fails
      var flush = Module['_fflush'];
      if (flush) flush(0);
      // 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 (keepRuntimeAlive()) {
      // if exit() was called, we may warn the user if the runtime isn't actually being shut down
      if (!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)';
        err(msg);
      }
    } else {
      exitRuntime();
    }
  
    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();
  
  
  
  
  
  