var Module = typeof Module !== "undefined" ? Module : {};

if (!Module.expectedDataFileDownloads) {
 Module.expectedDataFileDownloads = 0;
}

Module.expectedDataFileDownloads++;

(function() {
 var loadPackage = function(metadata) {
  var PACKAGE_PATH;
  if (typeof window === "object") {
   PACKAGE_PATH = window["encodeURIComponent"](window.location.pathname.toString().substring(0, window.location.pathname.toString().lastIndexOf("/")) + "/");
  } else if (typeof location !== "undefined") {
   PACKAGE_PATH = encodeURIComponent(location.pathname.toString().substring(0, location.pathname.toString().lastIndexOf("/")) + "/");
  } else {
   throw "using preloaded data can only be done on a web page or in a web worker";
  }
  var PACKAGE_NAME = "StorkGame.data";
  var REMOTE_PACKAGE_BASE = "StorkGame.data";
  if (typeof Module["locateFilePackage"] === "function" && !Module["locateFile"]) {
   Module["locateFile"] = Module["locateFilePackage"];
   err("warning: you defined Module.locateFilePackage, that has been renamed to Module.locateFile (using your locateFilePackage for now)");
  }
  var REMOTE_PACKAGE_NAME = Module["locateFile"] ? Module["locateFile"](REMOTE_PACKAGE_BASE, "") : REMOTE_PACKAGE_BASE;
  var REMOTE_PACKAGE_SIZE = metadata["remote_package_size"];
  var PACKAGE_UUID = metadata["package_uuid"];
  function fetchRemotePackage(packageName, packageSize, callback, errback) {
   var xhr = new XMLHttpRequest();
   xhr.open("GET", packageName, true);
   xhr.responseType = "arraybuffer";
   xhr.onprogress = function(event) {
    var url = packageName;
    var size = packageSize;
    if (event.total) size = event.total;
    if (event.loaded) {
     if (!xhr.addedTotal) {
      xhr.addedTotal = true;
      if (!Module.dataFileDownloads) Module.dataFileDownloads = {};
      Module.dataFileDownloads[url] = {
       loaded: event.loaded,
       total: size
      };
     } else {
      Module.dataFileDownloads[url].loaded = event.loaded;
     }
     var total = 0;
     var loaded = 0;
     var num = 0;
     for (var download in Module.dataFileDownloads) {
      var data = Module.dataFileDownloads[download];
      total += data.total;
      loaded += data.loaded;
      num++;
     }
     total = Math.ceil(total * Module.expectedDataFileDownloads / num);
     if (Module["setStatus"]) Module["setStatus"]("Downloading data... (" + loaded + "/" + total + ")");
    } else if (!Module.dataFileDownloads) {
     if (Module["setStatus"]) Module["setStatus"]("Downloading data...");
    }
   };
   xhr.onerror = function(event) {
    throw new Error("NetworkError for: " + packageName);
   };
   xhr.onload = function(event) {
    if (xhr.status == 200 || xhr.status == 304 || xhr.status == 206 || xhr.status == 0 && xhr.response) {
     var packageData = xhr.response;
     callback(packageData);
    } else {
     throw new Error(xhr.statusText + " : " + xhr.responseURL);
    }
   };
   xhr.send(null);
  }
  function handleError(error) {
   console.error("package error:", error);
  }
  var fetchedCallback = null;
  var fetched = Module["getPreloadedPackage"] ? Module["getPreloadedPackage"](REMOTE_PACKAGE_NAME, REMOTE_PACKAGE_SIZE) : null;
  if (!fetched) fetchRemotePackage(REMOTE_PACKAGE_NAME, REMOTE_PACKAGE_SIZE, function(data) {
   if (fetchedCallback) {
    fetchedCallback(data);
    fetchedCallback = null;
   } else {
    fetched = data;
   }
  }, handleError);
  function runWithFS() {
   function assert(check, msg) {
    if (!check) throw msg + new Error().stack;
   }
   function DataRequest(start, end, audio) {
    this.start = start;
    this.end = end;
    this.audio = audio;
   }
   DataRequest.prototype = {
    requests: {},
    open: function(mode, name) {
     this.name = name;
     this.requests[name] = this;
     Module["addRunDependency"]("fp " + this.name);
    },
    send: function() {},
    onload: function() {
     var byteArray = this.byteArray.subarray(this.start, this.end);
     this.finish(byteArray);
    },
    finish: function(byteArray) {
     var that = this;
     Module["FS_createDataFile"](this.name, null, byteArray, true, true, true);
     Module["removeRunDependency"]("fp " + that.name);
     this.requests[this.name] = null;
    }
   };
   var files = metadata["files"];
   for (var i = 0; i < files.length; ++i) {
    new DataRequest(files[i]["start"], files[i]["end"], files[i]["audio"]).open("GET", files[i]["filename"]);
   }
   function processPackageData(arrayBuffer) {
    assert(arrayBuffer, "Loading data file failed.");
    assert(arrayBuffer instanceof ArrayBuffer, "bad input to processPackageData");
    var byteArray = new Uint8Array(arrayBuffer);
    DataRequest.prototype.byteArray = byteArray;
    var files = metadata["files"];
    for (var i = 0; i < files.length; ++i) {
     DataRequest.prototype.requests[files[i].filename].onload();
    }
    Module["removeRunDependency"]("datafile_StorkGame.data");
   }
   Module["addRunDependency"]("datafile_StorkGame.data");
   if (!Module.preloadResults) Module.preloadResults = {};
   Module.preloadResults[PACKAGE_NAME] = {
    fromCache: false
   };
   if (fetched) {
    processPackageData(fetched);
    fetched = null;
   } else {
    fetchedCallback = processPackageData;
   }
  }
  if (Module["calledRun"]) {
   runWithFS();
  } else {
   if (!Module["preRun"]) Module["preRun"] = [];
   Module["preRun"].push(runWithFS);
  }
 };
 loadPackage({
  "files": [ {
   "filename": "/shader.fs",
   "start": 0,
   "end": 1502,
   "audio": 0
  }, {
   "filename": "/shader.vs",
   "start": 1502,
   "end": 3219,
   "audio": 0
  } ],
  "remote_package_size": 3219,
  "package_uuid": "74a273a1-d98a-406f-9d5a-9237d4d4e0e8"
 });
})();

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;
};

var ENVIRONMENT_IS_WEB = false;

var ENVIRONMENT_IS_WORKER = false;

var ENVIRONMENT_IS_NODE = false;

var ENVIRONMENT_IS_SHELL = false;

ENVIRONMENT_IS_WEB = typeof window === "object";

ENVIRONMENT_IS_WORKER = typeof importScripts === "function";

ENVIRONMENT_IS_NODE = typeof process === "object" && typeof process.versions === "object" && typeof process.versions.node === "string";

ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;

var scriptDirectory = "";

function locateFile(path) {
 if (Module["locateFile"]) {
  return Module["locateFile"](path, scriptDirectory);
 }
 return scriptDirectory + path;
}

var read_, readAsync, readBinary, setWindowTitle;

var nodeFS;

var nodePath;

if (ENVIRONMENT_IS_NODE) {
 if (ENVIRONMENT_IS_WORKER) {
  scriptDirectory = require("path").dirname(scriptDirectory) + "/";
 } else {
  scriptDirectory = __dirname + "/";
 }
 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;
 };
 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) {
  if (!(ex instanceof ExitStatus)) {
   throw ex;
  }
 });
 process["on"]("unhandledRejection", abort);
 quit_ = function(status) {
  process["exit"](status);
 };
 Module["inspect"] = function() {
  return "[Emscripten Module object]";
 };
} else if (ENVIRONMENT_IS_SHELL) {
 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;
 };
 if (typeof scriptArgs != "undefined") {
  arguments_ = scriptArgs;
 } else if (typeof arguments != "undefined") {
  arguments_ = arguments;
 }
 if (typeof quit === "function") {
  quit_ = function(status) {
   quit(status);
  };
 }
 if (typeof print !== "undefined") {
  if (typeof console === "undefined") console = {};
  console.log = print;
  console.warn = console.error = typeof printErr !== "undefined" ? printErr : print;
 }
} else if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
 if (ENVIRONMENT_IS_WORKER) {
  scriptDirectory = self.location.href;
 } else if (typeof document !== "undefined" && document.currentScript) {
  scriptDirectory = document.currentScript.src;
 }
 if (scriptDirectory.indexOf("blob:") !== 0) {
  scriptDirectory = scriptDirectory.substr(0, scriptDirectory.lastIndexOf("/") + 1);
 } else {
  scriptDirectory = "";
 }
 {
  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(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) {
     onload(xhr.response);
     return;
    }
    onerror();
   };
   xhr.onerror = onerror;
   xhr.send(null);
  };
 }
 setWindowTitle = function(title) {
  document.title = title;
 };
} else {}

var out = Module["print"] || console.log.bind(console);

var err = Module["printErr"] || console.warn.bind(console);

for (key in moduleOverrides) {
 if (moduleOverrides.hasOwnProperty(key)) {
  Module[key] = moduleOverrides[key];
 }
}

moduleOverrides = null;

if (Module["arguments"]) arguments_ = Module["arguments"];

if (Module["thisProgram"]) thisProgram = Module["thisProgram"];

if (Module["quit"]) quit_ = Module["quit"];

var STACK_ALIGN = 16;

function alignMemory(size, factor) {
 if (!factor) factor = STACK_ALIGN;
 return Math.ceil(size / factor) * factor;
}

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

var wasmBinary;

if (Module["wasmBinary"]) wasmBinary = Module["wasmBinary"];

var noExitRuntime = Module["noExitRuntime"] || true;

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 ? tempDouble > 0 ? (Math.min(+Math.floor(tempDouble / 4294967296), 4294967295) | 0) >>> 0 : ~~+Math.ceil((tempDouble - +(~~tempDouble >>> 0)) / 4294967296) >>> 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);
 }
}

var wasmMemory;

var ABORT = false;

var EXITSTATUS;

function assert(condition, text) {
 if (!condition) {
  abort("Assertion failed: " + text);
 }
}

var ALLOC_NORMAL = 0;

var ALLOC_STACK = 1;

function allocate(slab, allocator) {
 var ret;
 if (allocator == ALLOC_STACK) {
  ret = stackAlloc(slab.length);
 } else {
  ret = _malloc(slab.length);
 }
 if (slab.subarray || slab.slice) {
  HEAPU8.set(slab, ret);
 } else {
  HEAPU8.set(new Uint8Array(slab), ret);
 }
 return ret;
}

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

function UTF8ArrayToString(heap, idx, maxBytesToRead) {
 var endIdx = idx + maxBytesToRead;
 var endPtr = idx;
 while (heap[endPtr] && !(endPtr >= endIdx)) ++endPtr;
 if (endPtr - idx > 16 && heap.subarray && UTF8Decoder) {
  return UTF8Decoder.decode(heap.subarray(idx, endPtr));
 } else {
  var str = "";
  while (idx < endPtr) {
   var u0 = heap[idx++];
   if (!(u0 & 128)) {
    str += String.fromCharCode(u0);
    continue;
   }
   var u1 = heap[idx++] & 63;
   if ((u0 & 224) == 192) {
    str += String.fromCharCode((u0 & 31) << 6 | u1);
    continue;
   }
   var u2 = heap[idx++] & 63;
   if ((u0 & 240) == 224) {
    u0 = (u0 & 15) << 12 | u1 << 6 | u2;
   } else {
    u0 = (u0 & 7) << 18 | u1 << 12 | u2 << 6 | heap[idx++] & 63;
   }
   if (u0 < 65536) {
    str += String.fromCharCode(u0);
   } else {
    var ch = u0 - 65536;
    str += String.fromCharCode(55296 | ch >> 10, 56320 | ch & 1023);
   }
  }
 }
 return str;
}

function UTF8ToString(ptr, maxBytesToRead) {
 return ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead) : "";
}

function stringToUTF8Array(str, heap, outIdx, maxBytesToWrite) {
 if (!(maxBytesToWrite > 0)) return 0;
 var startIdx = outIdx;
 var endIdx = outIdx + maxBytesToWrite - 1;
 for (var i = 0; i < str.length; ++i) {
  var u = str.charCodeAt(i);
  if (u >= 55296 && u <= 57343) {
   var u1 = str.charCodeAt(++i);
   u = 65536 + ((u & 1023) << 10) | u1 & 1023;
  }
  if (u <= 127) {
   if (outIdx >= endIdx) break;
   heap[outIdx++] = u;
  } else if (u <= 2047) {
   if (outIdx + 1 >= endIdx) break;
   heap[outIdx++] = 192 | u >> 6;
   heap[outIdx++] = 128 | u & 63;
  } else if (u <= 65535) {
   if (outIdx + 2 >= endIdx) break;
   heap[outIdx++] = 224 | u >> 12;
   heap[outIdx++] = 128 | u >> 6 & 63;
   heap[outIdx++] = 128 | u & 63;
  } else {
   if (outIdx + 3 >= endIdx) break;
   heap[outIdx++] = 240 | u >> 18;
   heap[outIdx++] = 128 | u >> 12 & 63;
   heap[outIdx++] = 128 | u >> 6 & 63;
   heap[outIdx++] = 128 | u & 63;
  }
 }
 heap[outIdx] = 0;
 return outIdx - startIdx;
}

function stringToUTF8(str, outPtr, maxBytesToWrite) {
 return stringToUTF8Array(str, HEAPU8, outPtr, maxBytesToWrite);
}

function lengthBytesUTF8(str) {
 var len = 0;
 for (var i = 0; i < str.length; ++i) {
  var u = str.charCodeAt(i);
  if (u >= 55296 && u <= 57343) u = 65536 + ((u & 1023) << 10) | str.charCodeAt(++i) & 1023;
  if (u <= 127) ++len; else if (u <= 2047) len += 2; else if (u <= 65535) len += 3; else len += 4;
 }
 return len;
}

function writeArrayToMemory(array, buffer) {
 HEAP8.set(array, buffer);
}

function writeAsciiToMemory(str, buffer, dontAddNull) {
 for (var i = 0; i < str.length; ++i) {
  HEAP8[buffer++ >> 0] = str.charCodeAt(i);
 }
 if (!dontAddNull) HEAP8[buffer >> 0] = 0;
}

var buffer, HEAP8, HEAPU8, HEAP16, HEAPU16, HEAP32, HEAPU32, HEAPF32, 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 INITIAL_MEMORY = Module["INITIAL_MEMORY"] || 16777216;

var wasmTable;

var __ATPRERUN__ = [];

var __ATINIT__ = [];

var __ATMAIN__ = [];

var __ATEXIT__ = [];

var __ATPOSTRUN__ = [];

var runtimeInitialized = false;

var runtimeExited = false;

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() {
 runtimeInitialized = true;
 if (!Module["noFSInit"] && !FS.init.initialized) FS.init();
 TTY.init();
 callRuntimeCallbacks(__ATINIT__);
}

function preMain() {
 FS.ignorePermissions = false;
 callRuntimeCallbacks(__ATMAIN__);
}

function exitRuntime() {
 runtimeExited = true;
}

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

var runDependencies = 0;

var runDependencyWatcher = null;

var dependenciesFulfilled = null;

function getUniqueRunDependency(id) {
 return id;
}

function addRunDependency(id) {
 runDependencies++;
 if (Module["monitorRunDependencies"]) {
  Module["monitorRunDependencies"](runDependencies);
 }
}

function removeRunDependency(id) {
 runDependencies--;
 if (Module["monitorRunDependencies"]) {
  Module["monitorRunDependencies"](runDependencies);
 }
 if (runDependencies == 0) {
  if (runDependencyWatcher !== null) {
   clearInterval(runDependencyWatcher);
   runDependencyWatcher = null;
  }
  if (dependenciesFulfilled) {
   var callback = dependenciesFulfilled;
   dependenciesFulfilled = null;
   callback();
  }
 }
}

Module["preloadedImages"] = {};

Module["preloadedAudios"] = {};

function abort(what) {
 if (Module["onAbort"]) {
  Module["onAbort"](what);
 }
 what += "";
 err(what);
 ABORT = true;
 EXITSTATUS = 1;
 what = "abort(" + what + "). Build with -s ASSERTIONS=1 for more info.";
 var e = new WebAssembly.RuntimeError(what);
 throw e;
}

var dataURIPrefix = "data:application/octet-stream;base64,";

function isDataURI(filename) {
 return filename.startsWith(dataURIPrefix);
}

function isFileURI(filename) {
 return filename.startsWith("file://");
}

var wasmBinaryFile = "StorkGame.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 (!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) {
    return new Promise(function(resolve, reject) {
     readAsync(wasmBinaryFile, function(response) {
      resolve(new Uint8Array(response));
     }, reject);
    });
   }
  }
 }
 return Promise.resolve().then(function() {
  return getBinary(wasmBinaryFile);
 });
}

function createWasm() {
 var info = {
  "a": asmLibraryArg
 };
 function receiveInstance(instance, module) {
  var exports = instance.exports;
  Module["asm"] = exports;
  wasmMemory = Module["asm"]["pa"];
  updateGlobalBufferAndViews(wasmMemory.buffer);
  wasmTable = Module["asm"]["wa"];
  addOnInit(Module["asm"]["qa"]);
  removeRunDependency("wasm-instantiate");
 }
 addRunDependency("wasm-instantiate");
 function receiveInstantiationResult(result) {
  receiveInstance(result["instance"]);
 }
 function instantiateArrayBuffer(receiver) {
  return getBinaryPromise().then(function(binary) {
   var result = WebAssembly.instantiate(binary, info);
   return result;
  }).then(receiver, function(reason) {
   err("failed to asynchronously prepare wasm: " + reason);
   abort(reason);
  });
 }
 function instantiateAsync() {
  if (!wasmBinary && typeof WebAssembly.instantiateStreaming === "function" && !isDataURI(wasmBinaryFile) && !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) {
     err("wasm streaming compile failed: " + reason);
     err("falling back to ArrayBuffer instantiation");
     return instantiateArrayBuffer(receiveInstantiationResult);
    });
   });
  } else {
   return instantiateArrayBuffer(receiveInstantiationResult);
  }
 }
 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 {};
}

var tempDouble;

var tempI64;

function callRuntimeCallbacks(callbacks) {
 while (callbacks.length > 0) {
  var callback = callbacks.shift();
  if (typeof callback == "function") {
   callback(Module);
   continue;
  }
  var func = callback.func;
  if (typeof func === "number") {
   if (callback.arg === undefined) {
    wasmTable.get(func)();
   } else {
    wasmTable.get(func)(callback.arg);
   }
  } else {
   func(callback.arg === undefined ? null : callback.arg);
  }
 }
}

var runtimeKeepaliveCounter = 0;

function keepRuntimeAlive() {
 return noExitRuntime || runtimeKeepaliveCounter > 0;
}

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

var ExceptionInfoAttrs = {
 DESTRUCTOR_OFFSET: 0,
 REFCOUNT_OFFSET: 4,
 TYPE_OFFSET: 8,
 CAUGHT_OFFSET: 12,
 RETHROWN_OFFSET: 13,
 SIZE: 16
};

function ___cxa_allocate_exception(size) {
 return _malloc(size + ExceptionInfoAttrs.SIZE) + ExceptionInfoAttrs.SIZE;
}

function ExceptionInfo(excPtr) {
 this.excPtr = excPtr;
 this.ptr = excPtr - ExceptionInfoAttrs.SIZE;
 this.set_type = function(type) {
  HEAP32[this.ptr + ExceptionInfoAttrs.TYPE_OFFSET >> 2] = type;
 };
 this.get_type = function() {
  return HEAP32[this.ptr + ExceptionInfoAttrs.TYPE_OFFSET >> 2];
 };
 this.set_destructor = function(destructor) {
  HEAP32[this.ptr + ExceptionInfoAttrs.DESTRUCTOR_OFFSET >> 2] = destructor;
 };
 this.get_destructor = function() {
  return HEAP32[this.ptr + ExceptionInfoAttrs.DESTRUCTOR_OFFSET >> 2];
 };
 this.set_refcount = function(refcount) {
  HEAP32[this.ptr + ExceptionInfoAttrs.REFCOUNT_OFFSET >> 2] = refcount;
 };
 this.set_caught = function(caught) {
  caught = caught ? 1 : 0;
  HEAP8[this.ptr + ExceptionInfoAttrs.CAUGHT_OFFSET >> 0] = caught;
 };
 this.get_caught = function() {
  return HEAP8[this.ptr + ExceptionInfoAttrs.CAUGHT_OFFSET >> 0] != 0;
 };
 this.set_rethrown = function(rethrown) {
  rethrown = rethrown ? 1 : 0;
  HEAP8[this.ptr + ExceptionInfoAttrs.RETHROWN_OFFSET >> 0] = rethrown;
 };
 this.get_rethrown = function() {
  return HEAP8[this.ptr + ExceptionInfoAttrs.RETHROWN_OFFSET >> 0] != 0;
 };
 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 + ExceptionInfoAttrs.REFCOUNT_OFFSET >> 2];
  HEAP32[this.ptr + ExceptionInfoAttrs.REFCOUNT_OFFSET >> 2] = value + 1;
 };
 this.release_ref = function() {
  var prev = HEAP32[this.ptr + ExceptionInfoAttrs.REFCOUNT_OFFSET >> 2];
  HEAP32[this.ptr + ExceptionInfoAttrs.REFCOUNT_OFFSET >> 2] = prev - 1;
  return prev === 1;
 };
}

var exceptionLast = 0;

var uncaughtExceptionCount = 0;

function ___cxa_throw(ptr, type, destructor) {
 var info = new ExceptionInfo(ptr);
 info.init(type, destructor);
 exceptionLast = ptr;
 uncaughtExceptionCount++;
 throw ptr;
}

function setErrNo(value) {
 HEAP32[___errno_location() >> 2] = value;
 return value;
}

var PATH = {
 splitPath: function(filename) {
  var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
  return splitPathRe.exec(filename).slice(1);
 },
 normalizeArray: function(parts, allowAboveRoot) {
  var up = 0;
  for (var i = parts.length - 1; i >= 0; i--) {
   var last = parts[i];
   if (last === ".") {
    parts.splice(i, 1);
   } else if (last === "..") {
    parts.splice(i, 1);
    up++;
   } else if (up) {
    parts.splice(i, 1);
    up--;
   }
  }
  if (allowAboveRoot) {
   for (;up; up--) {
    parts.unshift("..");
   }
  }
  return parts;
 },
 normalize: function(path) {
  var isAbsolute = path.charAt(0) === "/", trailingSlash = path.substr(-1) === "/";
  path = PATH.normalizeArray(path.split("/").filter(function(p) {
   return !!p;
  }), !isAbsolute).join("/");
  if (!path && !isAbsolute) {
   path = ".";
  }
  if (path && trailingSlash) {
   path += "/";
  }
  return (isAbsolute ? "/" : "") + path;
 },
 dirname: function(path) {
  var result = PATH.splitPath(path), root = result[0], dir = result[1];
  if (!root && !dir) {
   return ".";
  }
  if (dir) {
   dir = dir.substr(0, dir.length - 1);
  }
  return root + dir;
 },
 basename: function(path) {
  if (path === "/") return "/";
  path = PATH.normalize(path);
  path = path.replace(/\/$/, "");
  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") {
  var randomBuffer = new Uint8Array(1);
  return function() {
   crypto.getRandomValues(randomBuffer);
   return randomBuffer[0];
  };
 } else if (ENVIRONMENT_IS_NODE) {
  try {
   var crypto_module = require("crypto");
   return function() {
    return crypto_module["randomBytes"](1)[0];
   };
  } catch (e) {}
 }
 return function() {
  abort("randomDevice");
 };
}

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();
   if (typeof path !== "string") {
    throw new TypeError("Arguments to path.resolve must be strings");
   } else if (!path) {
    return "";
   }
   resolvedPath = path + "/" + resolvedPath;
   resolvedAbsolute = path.charAt(0) === "/";
  }
  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() {},
 shutdown: function() {},
 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) {
   stream.tty.ops.flush(stream.tty);
  },
  flush: function(stream) {
   stream.tty.ops.flush(stream.tty);
  },
  read: function(stream, buffer, offset, length, pos) {
   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) {
     var BUFSIZE = 256;
     var buf = Buffer.alloc ? Buffer.alloc(BUFSIZE) : new Buffer(BUFSIZE);
     var bytesRead = 0;
     try {
      bytesRead = nodeFS.readSync(process.stdin.fd, buf, 0, BUFSIZE, null);
     } catch (e) {
      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") {
     result = window.prompt("Input: ");
     if (result !== null) {
      result += "\n";
     }
    } else if (typeof readline == "function") {
     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);
   }
  },
  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 mmapAlloc(size) {
 var alignedSize = alignMemory(size, 65536);
 var ptr = _malloc(alignedSize);
 while (size < alignedSize) HEAP8[ptr + size++] = 0;
 return ptr;
}

var MEMFS = {
 ops_table: null,
 mount: function(mount) {
  return MEMFS.createNode(null, "/", 16384 | 511, 0);
 },
 createNode: function(parent, name, mode, dev) {
  if (FS.isBlkdev(mode) || FS.isFIFO(mode)) {
   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;
   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();
  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);
  return new Uint8Array(node.contents);
 },
 expandFileStorage: function(node, newCapacity) {
  var prevCapacity = node.contents ? node.contents.length : 0;
  if (prevCapacity >= newCapacity) return;
  var CAPACITY_DOUBLING_MAX = 1024 * 1024;
  newCapacity = Math.max(newCapacity, prevCapacity * (prevCapacity < CAPACITY_DOUBLING_MAX ? 2 : 1.125) >>> 0);
  if (prevCapacity != 0) newCapacity = Math.max(newCapacity, 256);
  var oldContents = node.contents;
  node.contents = new Uint8Array(newCapacity);
  if (node.usedBytes > 0) node.contents.set(oldContents.subarray(0, node.usedBytes), 0);
 },
 resizeFileStorage: function(node, newSize) {
  if (node.usedBytes == newSize) return;
  if (newSize == 0) {
   node.contents = null;
   node.usedBytes = 0;
  } else {
   var oldContents = node.contents;
   node.contents = new Uint8Array(newSize);
   if (oldContents) {
    node.contents.set(oldContents.subarray(0, Math.min(newSize, node.usedBytes)));
   }
   node.usedBytes = newSize;
  }
 },
 node_ops: {
  getattr: function(node) {
   var attr = {};
   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);
   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 (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);
     }
    }
   }
   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 | 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);
   if (size > 8 && contents.subarray) {
    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) {
   if (!length) return 0;
   var node = stream.node;
   node.timestamp = Date.now();
   if (buffer.subarray && (!node.contents || node.contents.subarray)) {
    if (canOwn) {
     node.contents = buffer.subarray(offset, offset + length);
     node.usedBytes = length;
     return length;
    } else if (node.usedBytes === 0 && position === 0) {
     node.contents = buffer.slice(offset, offset + length);
     node.usedBytes = length;
     return length;
    } else if (position + length <= node.usedBytes) {
     node.contents.set(buffer.subarray(offset, offset + length), position);
     return length;
    }
   }
   MEMFS.expandFileStorage(node, position + length);
   if (node.contents.subarray && buffer.subarray) {
    node.contents.set(buffer.subarray(offset, offset + length), position);
   } else {
    for (var i = 0; i < length; i++) {
     node.contents[position + i] = buffer[offset + i];
    }
   }
   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) {
    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;
   if (!(flags & 2) && contents.buffer === buffer) {
    allocated = false;
    ptr = contents.byteOffset;
   } else {
    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) {
    return 0;
   }
   var bytesWritten = MEMFS.stream_ops.write(stream, buffer, 0, length, offset, false);
   return 0;
  }
 }
};

var FS = {
 root: null,
 mounts: [],
 devices: {},
 streams: [],
 nextInode: 1,
 nameTable: null,
 currentPath: "/",
 initialized: false,
 ignorePermissions: true,
 trackingDelegate: {},
 tracking: {
  openFlags: {
   READ: 1,
   WRITE: 2
  }
 },
 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) {
   throw new FS.ErrnoError(32);
  }
  var parts = PATH.normalizeArray(path.split("/").filter(function(p) {
   return !!p;
  }), false);
  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) {
    break;
   }
   current = FS.lookupNode(current, parts[i]);
   current_path = PATH.join2(current_path, parts[i]);
   if (FS.isMountpoint(current)) {
    if (!islast || islast && opts.follow_mount) {
     current = current.mounted.root;
    }
   }
   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) {
      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;
   }
  }
  return FS.lookup(parent, name);
 },
 createNode: function(parent, name, mode, rdev) {
  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;
  }
  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" || flags & 512) {
    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 = 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;
     }
    }
   };
  }
  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);
   stream.stream_ops = device.stream_ops;
   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 & 255;
 },
 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) {
   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);
   }
  }
  mounts.forEach(function(mount) {
   if (!mount.type.syncfs) {
    return done(null);
   }
   mount.type.syncfs(mount, populate, done);
  });
 },
 mount: function(type, opts, mountpoint) {
  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;
   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: []
  };
  var mountRoot = type.mount(mount);
  mountRoot.mount = mount;
  mount.root = mountRoot;
  if (root) {
   FS.root = mountRoot;
  } else if (node) {
   node.mounted = mount;
   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);
  }
  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;
   }
  });
  node.mounted = null;
  var idx = node.mount.mounts.indexOf(mount);
  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;
  mode &= 4095;
  mode |= 32768;
  return FS.mknod(path, mode, 0);
 },
 mkdir: function(path, mode) {
  mode = mode !== undefined ? mode : 511;
  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;
  }
  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);
  var lookup, old_dir, new_dir;
  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);
  if (old_dir.mount !== new_dir.mount) {
   throw new FS.ErrnoError(75);
  }
  var old_node = FS.lookupNode(old_dir, old_name);
  var relative = PATH_FS.relative(old_path, new_dirname);
  if (relative.charAt(0) !== ".") {
   throw new FS.ErrnoError(28);
  }
  relative = PATH_FS.relative(new_path, old_dirname);
  if (relative.charAt(0) !== ".") {
   throw new FS.ErrnoError(55);
  }
  var new_node;
  try {
   new_node = FS.lookupNode(new_dir, new_name);
  } catch (e) {}
  if (old_node === new_node) {
   return;
  }
  var isdir = FS.isDir(old_node.mode);
  var errCode = FS.mayDelete(old_dir, old_name, isdir);
  if (errCode) {
   throw new FS.ErrnoError(errCode);
  }
  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 (new_dir !== old_dir) {
   errCode = FS.nodePermissions(old_dir, "w");
   if (errCode) {
    throw new FS.ErrnoError(errCode);
   }
  }
  try {
   if (FS.trackingDelegate["willMovePath"]) {
    FS.trackingDelegate["willMovePath"](old_path, new_path);
   }
  } catch (e) {
   err("FS.trackingDelegate['willMovePath']('" + old_path + "', '" + new_path + "') threw an exception: " + e.message);
  }
  FS.hashRemoveNode(old_node);
  try {
   old_dir.node_ops.rename(old_node, new_dir, new_name);
  } catch (e) {
   throw e;
  } finally {
   FS.hashAddNode(old_node);
  }
  try {
   if (FS.trackingDelegate["onMovePath"]) FS.trackingDelegate["onMovePath"](old_path, new_path);
  } catch (e) {
   err("FS.trackingDelegate['onMovePath']('" + old_path + "', '" + new_path + "') threw an exception: " + e.message);
  }
 },
 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);
  }
  try {
   if (FS.trackingDelegate["willDeletePath"]) {
    FS.trackingDelegate["willDeletePath"](path);
   }
  } catch (e) {
   err("FS.trackingDelegate['willDeletePath']('" + path + "') threw an exception: " + e.message);
  }
  parent.node_ops.rmdir(parent, name);
  FS.destroyNode(node);
  try {
   if (FS.trackingDelegate["onDeletePath"]) FS.trackingDelegate["onDeletePath"](path);
  } catch (e) {
   err("FS.trackingDelegate['onDeletePath']('" + path + "') threw an exception: " + e.message);
  }
 },
 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) {
   throw new FS.ErrnoError(errCode);
  }
  if (!parent.node_ops.unlink) {
   throw new FS.ErrnoError(63);
  }
  if (FS.isMountpoint(node)) {
   throw new FS.ErrnoError(10);
  }
  try {
   if (FS.trackingDelegate["willDeletePath"]) {
    FS.trackingDelegate["willDeletePath"](path);
   }
  } catch (e) {
   err("FS.trackingDelegate['willDeletePath']('" + path + "') threw an exception: " + e.message);
  }
  parent.node_ops.unlink(parent, name);
  FS.destroyNode(node);
  try {
   if (FS.trackingDelegate["onDeletePath"]) FS.trackingDelegate["onDeletePath"](path);
  } catch (e) {
   err("FS.trackingDelegate['onDeletePath']('" + path + "') threw an exception: " + e.message);
  }
 },
 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()
  });
 },
 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 : 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) {}
  }
  var created = false;
  if (flags & 64) {
   if (node) {
    if (flags & 128) {
     throw new FS.ErrnoError(20);
    }
   } else {
    node = FS.mknod(path, mode, 0);
    created = true;
   }
  }
  if (!node) {
   throw new FS.ErrnoError(44);
  }
  if (FS.isChrdev(node.mode)) {
   flags &= ~512;
  }
  if (flags & 65536 && !FS.isDir(node.mode)) {
   throw new FS.ErrnoError(54);
  }
  if (!created) {
   var errCode = FS.mayOpen(node, flags);
   if (errCode) {
    throw new FS.ErrnoError(errCode);
   }
  }
  if (flags & 512) {
   FS.truncate(node, 0);
  }
  flags &= ~(128 | 512 | 131072);
  var stream = FS.createStream({
   node: node,
   path: FS.getPath(node),
   flags: flags,
   seekable: true,
   position: 0,
   stream_ops: node.stream_ops,
   ungotten: [],
   error: false
  }, fd_start, fd_end);
  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;
    err("FS.trackingDelegate error on read file: " + path);
   }
  }
  try {
   if (FS.trackingDelegate["onOpenFile"]) {
    var trackingFlags = 0;
    if ((flags & 2097155) !== 1) {
     trackingFlags |= FS.tracking.openFlags.READ;
    }
    if ((flags & 2097155) !== 0) {
     trackingFlags |= FS.tracking.openFlags.WRITE;
    }
    FS.trackingDelegate["onOpenFile"](path, trackingFlags);
   }
  } catch (e) {
   err("FS.trackingDelegate['onOpenFile']('" + path + "', flags) threw an exception: " + e.message);
  }
  return stream;
 },
 close: function(stream) {
  if (FS.isClosed(stream)) {
   throw new FS.ErrnoError(8);
  }
  if (stream.getdents) stream.getdents = null;
  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) {
   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;
  try {
   if (stream.path && FS.trackingDelegate["onWriteToFile"]) FS.trackingDelegate["onWriteToFile"](stream.path);
  } catch (e) {
   err("FS.trackingDelegate['onWriteToFile']('" + stream.path + "') threw an exception: " + e.message);
  }
  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) {
  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() {
  FS.mkdir("/dev");
  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));
  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));
  var random_device = getRandomDevice();
  FS.createDevice("/dev", "random", random_device);
  FS.createDevice("/dev", "urandom", random_device);
  FS.mkdir("/dev/shm");
  FS.mkdir("/dev/shm/tmp");
 },
 createSpecialDirectories: function() {
  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, 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;
      return ret;
     }
    };
    return node;
   }
  }, {}, "/proc/self/fd");
 },
 createStandardStreams: function() {
  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");
  }
  var stdin = FS.open("/dev/stdin", 0);
  var stdout = FS.open("/dev/stdout", 1);
  var stderr = FS.open("/dev/stderr", 1);
 },
 ensureErrnoError: function() {
  if (FS.ErrnoError) return;
  FS.ErrnoError = function ErrnoError(errno, node) {
   this.node = node;
   this.setErrno = function(errno) {
    this.errno = errno;
   };
   this.setErrno(errno);
   this.message = "FS error";
  };
  FS.ErrnoError.prototype = new Error();
  FS.ErrnoError.prototype.constructor = FS.ErrnoError;
  [ 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) {
  FS.init.initialized = true;
  FS.ensureErrnoError();
  Module["stdin"] = input || Module["stdin"];
  Module["stdout"] = output || Module["stdout"];
  Module["stderr"] = error || Module["stderr"];
  FS.createStandardStreams();
 },
 quit: function() {
  FS.init.initialized = false;
  var fflush = Module["_fflush"];
  if (fflush) fflush(0);
  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) {
  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) {}
   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;
   }
   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);
  FS.registerDevice(dev, {
   open: function(stream) {
    stream.seekable = false;
   },
   close: function(stream) {
    if (output && output.buffer && output.buffer.length) {
     output(10);
    }
   },
   read: function(stream, buffer, offset, length, pos) {
    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_) {
   try {
    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) {
  function LazyUint8Array() {
   this.lengthKnown = false;
   this.chunks = [];
  }
  LazyUint8Array.prototype.get = 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() {
   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;
   if (!hasByteServing) chunkSize = datalength;
   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!");
    var xhr = new XMLHttpRequest();
    xhr.open("GET", url, false);
    if (datalength !== chunkSize) xhr.setRequestHeader("Range", "bytes=" + from + "-" + to);
    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(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;
    end = Math.min(end, datalength - 1);
    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) {
    chunkSize = datalength = 1;
    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: function() {
      if (!this.lengthKnown) {
       this.cacheLength();
      }
      return this._length;
     }
    },
    chunkSize: {
     get: 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);
  if (properties.contents) {
   node.contents = properties.contents;
  } else if (properties.url) {
   node.contents = null;
   node.url = properties.url;
  }
  Object.defineProperties(node, {
   usedBytes: {
    get: function() {
     return this.contents.length;
    }
   }
  });
  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);
   };
  });
  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);
   if (contents.slice) {
    for (var i = 0; i < size; i++) {
     buffer[offset + i] = contents[position + i];
    }
   } else {
    for (var i = 0; i < size; i++) {
     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();
  var fullname = name ? PATH_FS.resolve(PATH.join2(parent, name)) : parent;
  var dep = getUniqueRunDependency("cp " + 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") {
   Browser.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;
  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;
 }
};

var SYSCALLS = {
 mappings: {},
 DEFAULT_POLLMASK: 5,
 umask: 511,
 calculateAt: function(dirfd, path, allowEmpty) {
  if (path[0] === "/") {
   return 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))) {
    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 ? tempDouble > 0 ? (Math.min(+Math.floor(tempDouble / 4294967296), 4294967295) | 0) >>> 0 : ~~+Math.ceil((tempDouble - +(~~tempDouble >>> 0)) / 4294967296) >>> 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() / 1e3 | 0;
  HEAP32[buf + 60 >> 2] = 0;
  HEAP32[buf + 64 >> 2] = stat.mtime.getTime() / 1e3 | 0;
  HEAP32[buf + 68 >> 2] = 0;
  HEAP32[buf + 72 >> 2] = stat.ctime.getTime() / 1e3 | 0;
  HEAP32[buf + 76 >> 2] = 0;
  tempI64 = [ stat.ino >>> 0, (tempDouble = stat.ino, +Math.abs(tempDouble) >= 1 ? tempDouble > 0 ? (Math.min(+Math.floor(tempDouble / 4294967296), 4294967295) | 0) >>> 0 : ~~+Math.ceil((tempDouble - +(~~tempDouble >>> 0)) / 4294967296) >>> 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) {
  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) {
  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);
  HEAP8[buf + len] = endChar;
  return len;
 },
 doAccess: function(path, amode) {
  if (amode & ~7) {
   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 && 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;
  }
  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() {
  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) {
  return low;
 }
};

function ___sys_fcntl64(fd, cmd, varargs) {
 SYSCALLS.varargs = varargs;
 try {
  var stream = SYSCALLS.getStreamFromFD(fd);
  switch (cmd) {
  case 0:
   {
    var arg = SYSCALLS.get();
    if (arg < 0) {
     return -28;
    }
    var newStream;
    newStream = FS.open(stream.path, stream.flags, 0, arg);
    return newStream.fd;
   }

  case 1:
  case 2:
   return 0;

  case 3:
   return stream.flags;

  case 4:
   {
    var arg = SYSCALLS.get();
    stream.flags |= arg;
    return 0;
   }

  case 12:
   {
    var arg = SYSCALLS.get();
    var offset = 0;
    HEAP16[arg + offset >> 1] = 2;
    return 0;
   }

  case 13:
  case 14:
   return 0;

  case 16:
  case 8:
   return -28;

  case 9:
   setErrNo(28);
   return -1;

  default:
   {
    return -28;
   }
  }
 } catch (e) {
  if (typeof FS === "undefined" || !(e instanceof FS.ErrnoError)) abort(e);
  return -e.errno;
 }
}

function ___sys_ioctl(fd, op, varargs) {
 SYSCALLS.varargs = varargs;
 try {
  var stream = SYSCALLS.getStreamFromFD(fd);
  switch (op) {
  case 21509:
  case 21505:
   {
    if (!stream.tty) return -59;
    return 0;
   }

  case 21510:
  case 21511:
  case 21512:
  case 21506:
  case 21507:
  case 21508:
   {
    if (!stream.tty) return -59;
    return 0;
   }

  case 21519:
   {
    if (!stream.tty) return -59;
    var argp = SYSCALLS.get();
    HEAP32[argp >> 2] = 0;
    return 0;
   }

  case 21520:
   {
    if (!stream.tty) return -59;
    return -28;
   }

  case 21531:
   {
    var argp = SYSCALLS.get();
    return FS.ioctl(stream, op, argp);
   }

  case 21523:
   {
    if (!stream.tty) return -59;
    return 0;
   }

  case 21524:
   {
    if (!stream.tty) return -59;
    return 0;
   }

  default:
   abort("bad ioctl syscall " + op);
  }
 } catch (e) {
  if (typeof FS === "undefined" || !(e instanceof FS.ErrnoError)) abort(e);
  return -e.errno;
 }
}

function ___sys_open(path, flags, varargs) {
 SYSCALLS.varargs = varargs;
 try {
  var pathname = SYSCALLS.getStr(path);
  var mode = varargs ? SYSCALLS.get() : 0;
  var stream = FS.open(pathname, flags, mode);
  return stream.fd;
 } catch (e) {
  if (typeof FS === "undefined" || !(e instanceof FS.ErrnoError)) abort(e);
  return -e.errno;
 }
}

function _abort() {
 abort();
}

var JSEvents = {
 inEventHandler: 0,
 removeAllEventListeners: function() {
  for (var i = JSEvents.eventHandlers.length - 1; i >= 0; --i) {
   JSEvents._removeHandler(i);
  }
  JSEvents.eventHandlers = [];
  JSEvents.deferredCalls = [];
 },
 registerRemoveEventListeners: function() {
  if (!JSEvents.removeEventListenersRegistered) {
   __ATEXIT__.push(JSEvents.removeAllEventListeners);
   JSEvents.removeEventListenersRegistered = true;
  }
 },
 deferredCalls: [],
 deferCall: function(targetFunction, precedence, argsList) {
  function arraysHaveEqualContent(arrA, arrB) {
   if (arrA.length != arrB.length) return false;
   for (var i in arrA) {
    if (arrA[i] != arrB[i]) return false;
   }
   return true;
  }
  for (var i in JSEvents.deferredCalls) {
   var call = JSEvents.deferredCalls[i];
   if (call.targetFunction == targetFunction && arraysHaveEqualContent(call.argsList, argsList)) {
    return;
   }
  }
  JSEvents.deferredCalls.push({
   targetFunction: targetFunction,
   precedence: precedence,
   argsList: argsList
  });
  JSEvents.deferredCalls.sort(function(x, y) {
   return x.precedence < y.precedence;
  });
 },
 removeDeferredCalls: function(targetFunction) {
  for (var i = 0; i < JSEvents.deferredCalls.length; ++i) {
   if (JSEvents.deferredCalls[i].targetFunction == targetFunction) {
    JSEvents.deferredCalls.splice(i, 1);
    --i;
   }
  }
 },
 canPerformEventHandlerRequests: function() {
  return JSEvents.inEventHandler && JSEvents.currentEventHandler.allowsDeferredCalls;
 },
 runDeferredCalls: function() {
  if (!JSEvents.canPerformEventHandlerRequests()) {
   return;
  }
  for (var i = 0; i < JSEvents.deferredCalls.length; ++i) {
   var call = JSEvents.deferredCalls[i];
   JSEvents.deferredCalls.splice(i, 1);
   --i;
   call.targetFunction.apply(null, call.argsList);
  }
 },
 eventHandlers: [],
 removeAllHandlersOnTarget: function(target, eventTypeString) {
  for (var i = 0; i < JSEvents.eventHandlers.length; ++i) {
   if (JSEvents.eventHandlers[i].target == target && (!eventTypeString || eventTypeString == JSEvents.eventHandlers[i].eventTypeString)) {
    JSEvents._removeHandler(i--);
   }
  }
 },
 _removeHandler: function(i) {
  var h = JSEvents.eventHandlers[i];
  h.target.removeEventListener(h.eventTypeString, h.eventListenerFunc, h.useCapture);
  JSEvents.eventHandlers.splice(i, 1);
 },
 registerOrRemoveHandler: function(eventHandler) {
  var jsEventHandler = function jsEventHandler(event) {
   ++JSEvents.inEventHandler;
   JSEvents.currentEventHandler = eventHandler;
   JSEvents.runDeferredCalls();
   eventHandler.handlerFunc(event);
   JSEvents.runDeferredCalls();
   --JSEvents.inEventHandler;
  };
  if (eventHandler.callbackfunc) {
   eventHandler.eventListenerFunc = jsEventHandler;
   eventHandler.target.addEventListener(eventHandler.eventTypeString, jsEventHandler, eventHandler.useCapture);
   JSEvents.eventHandlers.push(eventHandler);
   JSEvents.registerRemoveEventListeners();
  } else {
   for (var i = 0; i < JSEvents.eventHandlers.length; ++i) {
    if (JSEvents.eventHandlers[i].target == eventHandler.target && JSEvents.eventHandlers[i].eventTypeString == eventHandler.eventTypeString) {
     JSEvents._removeHandler(i--);
    }
   }
  }
 },
 getNodeNameForTarget: function(target) {
  if (!target) return "";
  if (target == window) return "#window";
  if (target == screen) return "#screen";
  return target && target.nodeName ? target.nodeName : "";
 },
 fullscreenEnabled: function() {
  return document.fullscreenEnabled || document.webkitFullscreenEnabled;
 }
};

function maybeCStringToJsString(cString) {
 return cString > 2 ? UTF8ToString(cString) : cString;
}

var specialHTMLTargets = [ 0, typeof document !== "undefined" ? document : 0, typeof window !== "undefined" ? window : 0 ];

function findEventTarget(target) {
 target = maybeCStringToJsString(target);
 var domElement = specialHTMLTargets[target] || (typeof document !== "undefined" ? document.querySelector(target) : undefined);
 return domElement;
}

function getBoundingClientRect(e) {
 return specialHTMLTargets.indexOf(e) < 0 ? e.getBoundingClientRect() : {
  "left": 0,
  "top": 0
 };
}

function _emscripten_get_element_css_size(target, width, height) {
 target = findEventTarget(target);
 if (!target) return -4;
 var rect = getBoundingClientRect(target);
 HEAPF64[width >> 3] = rect.width;
 HEAPF64[height >> 3] = rect.height;
 return 0;
}

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

function abortOnCannotGrowMemory(requestedSize) {
 abort("OOM");
}

function _emscripten_resize_heap(requestedSize) {
 var oldSize = HEAPU8.length;
 requestedSize = requestedSize >>> 0;
 abortOnCannotGrowMemory(requestedSize);
}

function fillFullscreenChangeEventData(eventStruct) {
 var fullscreenElement = document.fullscreenElement || document.mozFullScreenElement || document.webkitFullscreenElement || document.msFullscreenElement;
 var isFullscreen = !!fullscreenElement;
 HEAP32[eventStruct >> 2] = isFullscreen;
 HEAP32[eventStruct + 4 >> 2] = JSEvents.fullscreenEnabled();
 var reportedElement = isFullscreen ? fullscreenElement : JSEvents.previousFullscreenElement;
 var nodeName = JSEvents.getNodeNameForTarget(reportedElement);
 var id = reportedElement && reportedElement.id ? reportedElement.id : "";
 stringToUTF8(nodeName, eventStruct + 8, 128);
 stringToUTF8(id, eventStruct + 136, 128);
 HEAP32[eventStruct + 264 >> 2] = reportedElement ? reportedElement.clientWidth : 0;
 HEAP32[eventStruct + 268 >> 2] = reportedElement ? reportedElement.clientHeight : 0;
 HEAP32[eventStruct + 272 >> 2] = screen.width;
 HEAP32[eventStruct + 276 >> 2] = screen.height;
 if (isFullscreen) {
  JSEvents.previousFullscreenElement = fullscreenElement;
 }
}

function registerFullscreenChangeEventCallback(target, userData, useCapture, callbackfunc, eventTypeId, eventTypeString, targetThread) {
 if (!JSEvents.fullscreenChangeEvent) JSEvents.fullscreenChangeEvent = _malloc(280);
 var fullscreenChangeEventhandlerFunc = function(ev) {
  var e = ev || event;
  var fullscreenChangeEvent = JSEvents.fullscreenChangeEvent;
  fillFullscreenChangeEventData(fullscreenChangeEvent);
  if (wasmTable.get(callbackfunc)(eventTypeId, fullscreenChangeEvent, userData)) e.preventDefault();
 };
 var eventHandler = {
  target: target,
  eventTypeString: eventTypeString,
  callbackfunc: callbackfunc,
  handlerFunc: fullscreenChangeEventhandlerFunc,
  useCapture: useCapture
 };
 JSEvents.registerOrRemoveHandler(eventHandler);
}

function _emscripten_set_fullscreenchange_callback_on_thread(target, userData, useCapture, callbackfunc, targetThread) {
 if (!JSEvents.fullscreenEnabled()) return -1;
 target = findEventTarget(target);
 if (!target) return -4;
 registerFullscreenChangeEventCallback(target, userData, useCapture, callbackfunc, 19, "fullscreenchange", targetThread);
 registerFullscreenChangeEventCallback(target, userData, useCapture, callbackfunc, 19, "webkitfullscreenchange", targetThread);
 return 0;
}

function callUserCallback(func, synchronous) {
 if (ABORT) {
  return;
 }
 if (synchronous) {
  func();
  return;
 }
 try {
  func();
 } catch (e) {
  if (e instanceof ExitStatus) {
   return;
  } else if (e !== "unwind") {
   if (e && typeof e === "object" && e.stack) err("exception thrown: " + [ e, e.stack ]);
   throw e;
  }
 }
}

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;
   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;
   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;
    }
   }
   callUserCallback(func);
   if (Module["postMainLoop"]) Module["postMainLoop"]();
  }
 },
 isFullscreen: false,
 pointerLock: false,
 moduleContextCreatedCallbacks: [],
 workers: [],
 init: function() {
  if (!Module["preloadPlugins"]) Module["preloadPlugins"] = [];
  if (Browser.initted) return;
  Browser.initted = true;
  try {
   new Blob();
   Browser.hasBlobConstructor = true;
  } catch (e) {
   Browser.hasBlobConstructor = false;
   console.log("warning: no blob constructor, cannot create blobs with mimetypes");
  }
  Browser.BlobBuilder = typeof MozBlobBuilder != "undefined" ? MozBlobBuilder : typeof WebKitBlobBuilder != "undefined" ? WebKitBlobBuilder : !Browser.hasBlobConstructor ? console.log("warning: no BlobBuilder") : null;
  Browser.URLObject = typeof window != "undefined" ? window.URL ? window.URL : window.webkitURL : undefined;
  if (!Module.noImageDecoding && typeof Browser.URLObject === "undefined") {
   console.log("warning: Browser does not support creating object URLs. Built-in browser image decoding will not be available.");
   Module.noImageDecoding = true;
  }
  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) {
      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);
    b = bb.getBlob();
   }
   var url = Browser.URLObject.createObjectURL(b);
   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) {
    console.log("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();
    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);
    var audio = new Audio();
    audio.addEventListener("canplaythrough", function() {
     finish(audio);
    }, false);
    audio.onerror = function audio_onerror(event) {
     if (done) return;
     console.log("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 & 63;
        leftbits -= 6;
        ret += BASE[curr];
       }
      }
      if (leftbits == 2) {
       ret += BASE[(leftchar & 3) << 4];
       ret += PAD + PAD;
      } else if (leftbits == 4) {
       ret += BASE[(leftchar & 15) << 2];
       ret += PAD;
      }
      return ret;
     }
     audio.src = "data:audio/x-" + name.substr(-3) + ";base64," + encode64(byteArray);
     finish(audio);
    };
    audio.src = url;
    Browser.safeSetTimeout(function() {
     finish(audio);
    }, 1e4);
   } else {
    return fail();
   }
  };
  Module["preloadPlugins"].push(audioPlugin);
  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) {
   canvas.requestPointerLock = canvas["requestPointerLock"] || canvas["mozRequestPointerLock"] || canvas["webkitRequestPointerLock"] || canvas["msRequestPointerLock"] || function() {};
   canvas.exitPointerLock = document["exitPointerLock"] || document["mozExitPointerLock"] || document["webkitExitPointerLock"] || document["msExitPointerLock"] || function() {};
   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;
  var ctx;
  var contextHandle;
  if (useWebGL) {
   var contextAttributes = {
    antialias: false,
    alpha: false,
    majorVersion: typeof WebGL2RenderingContext !== "undefined" ? 2 : 1
   };
   if (webGLContextAttributes) {
    for (var attribute in webGLContextAttributes) {
     contextAttributes[attribute] = webGLContextAttributes[attribute];
    }
   }
   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 {
    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);
  }
  var canvasContainer = document.createElement("div");
  canvas.parentNode.insertBefore(canvasContainer, canvas);
  canvasContainer.appendChild(canvas);
  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();
 },
 exitFullscreen: function() {
  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) {
  var now = Date.now();
  if (Browser.nextRAF === 0) {
   Browser.nextRAF = now + 1e3 / 60;
  } else {
   while (now + 2 >= Browser.nextRAF) {
    Browser.nextRAF += 1e3 / 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);
 },
 safeRequestAnimationFrame: function(func) {
  return Browser.requestAnimationFrame(function() {
   callUserCallback(func);
  });
 },
 safeSetTimeout: function(func, timeout) {
  return setTimeout(function() {
   callUserCallback(func);
  }, timeout);
 },
 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":
   delta = event.detail / 3;
   break;

  case "mousewheel":
   delta = event.wheelDelta / 120;
   break;

  case "wheel":
   delta = event.deltaY;
   switch (event.deltaMode) {
   case 0:
    delta /= 100;
    break;

   case 1:
    delta /= 3;
    break;

   case 2:
    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) {
  if (Browser.pointerLock) {
   if (event.type != "mousemove" && "mozMovementX" in event) {
    Browser.mouseMovementX = Browser.mouseMovementY = 0;
   } else {
    Browser.mouseMovementX = Browser.getMovementX(event);
    Browser.mouseMovementY = Browser.getMovementY(event);
   }
   if (typeof SDL != "undefined") {
    Browser.mouseX = SDL.mouseX + Browser.mouseMovementX;
    Browser.mouseY = SDL.mouseY + Browser.mouseMovementY;
   } else {
    Browser.mouseX += Browser.mouseMovementX;
    Browser.mouseY += Browser.mouseMovementY;
   }
  } else {
   var rect = Module["canvas"].getBoundingClientRect();
   var cw = Module["canvas"].width;
   var ch = Module["canvas"].height;
   var scrollX = typeof window.scrollX !== "undefined" ? window.scrollX : window.pageXOffset;
   var scrollY = typeof window.scrollY !== "undefined" ? window.scrollY : window.pageYOffset;
   if (event.type === "touchstart" || event.type === "touchend" || event.type === "touchmove") {
    var touch = event.touch;
    if (touch === undefined) {
     return;
    }
    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);
   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;
  }
 },
 asyncLoad: function(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);
 },
 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() {
  if (typeof SDL != "undefined") {
   var flags = HEAPU32[SDL.screen >> 2];
   flags = flags | 8388608;
   HEAP32[SDL.screen >> 2] = flags;
  }
  Browser.updateCanvasDimensions(Module["canvas"]);
  Browser.updateResizeListeners();
 },
 setWindowedCanvasSize: function() {
  if (typeof SDL != "undefined") {
   var flags = HEAPU32[SDL.screen >> 2];
   flags = flags & ~8388608;
   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");
    }
   }
  }
 },
 wgetRequests: {},
 nextWgetRequestHandle: 0,
 getNextWgetRequestHandle: function() {
  var handle = Browser.nextWgetRequestHandle;
  Browser.nextWgetRequestHandle++;
  return handle;
 }
};

function _emscripten_set_main_loop_timing(mode, value) {
 Browser.mainLoop.timingMode = mode;
 Browser.mainLoop.timingValue = value;
 if (!Browser.mainLoop.func) {
  return 1;
 }
 if (!Browser.mainLoop.running) {
  Browser.mainLoop.running = true;
 }
 if (mode == 0) {
  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);
  };
  Browser.mainLoop.method = "timeout";
 } else if (mode == 1) {
  Browser.mainLoop.scheduler = function Browser_mainLoop_scheduler_rAF() {
   Browser.requestAnimationFrame(Browser.mainLoop.runner);
  };
  Browser.mainLoop.method = "rAF";
 } else if (mode == 2) {
  if (typeof setImmediate === "undefined") {
   var setImmediates = [];
   var emscriptenMainLoopMessageId = "setimmediate";
   var Browser_setImmediate_messageHandler = function(event) {
    if (event.data === emscriptenMainLoopMessageId || event.data.target === emscriptenMainLoopMessageId) {
     event.stopPropagation();
     setImmediates.shift()();
    }
   };
   addEventListener("message", Browser_setImmediate_messageHandler, true);
   setImmediate = 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
     });
    } else postMessage(emscriptenMainLoopMessageId, "*");
   };
  }
  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 if (typeof dateNow !== "undefined") {
 _emscripten_get_now = dateNow;
} else _emscripten_get_now = function() {
 return performance.now();
};

function _exit(status) {
 exit(status);
}

function maybeExit() {
 if (!keepRuntimeAlive()) {
  try {
   _exit(EXITSTATUS);
  } catch (e) {
   if (e instanceof ExitStatus) {
    return;
   }
   throw 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;
 }
 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 {
     next = next + .5;
     Browser.mainLoop.remainingBlockers = (8 * remaining + next) / 9;
    }
   }
   console.log('main loop blocker "' + blocker.name + '" took ' + (Date.now() - start) + " ms");
   Browser.mainLoop.updateStatus();
   if (!checkIsRunning()) return;
   setTimeout(Browser.mainLoop.runner, 0);
   return;
  }
  if (!checkIsRunning()) return;
  Browser.mainLoop.currentFrameNumber = Browser.mainLoop.currentFrameNumber + 1 | 0;
  if (Browser.mainLoop.timingMode == 1 && Browser.mainLoop.timingValue > 1 && Browser.mainLoop.currentFrameNumber % Browser.mainLoop.timingValue != 0) {
   Browser.mainLoop.scheduler();
   return;
  } else if (Browser.mainLoop.timingMode == 0) {
   Browser.mainLoop.tickStartTime = _emscripten_get_now();
  }
  Browser.mainLoop.runIter(browserIterationFunc);
  if (!checkIsRunning()) return;
  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, 1e3 / fps); else _emscripten_set_main_loop_timing(1, 1);
  Browser.mainLoop.scheduler();
 }
 if (simulateInfiniteLoop) {
  throw "unwind";
 }
}

function _emscripten_set_main_loop(func, fps, simulateInfiniteLoop) {
 var browserIterationFunc = wasmTable.get(func);
 setMainLoop(browserIterationFunc, fps, simulateInfiniteLoop);
}

function registerUiEventCallback(target, userData, useCapture, callbackfunc, eventTypeId, eventTypeString, targetThread) {
 if (!JSEvents.uiEvent) JSEvents.uiEvent = _malloc(36);
 target = findEventTarget(target);
 var uiEventHandlerFunc = function(ev) {
  var e = ev || event;
  if (e.target != target) {
   return;
  }
  var b = document.body;
  if (!b) {
   return;
  }
  var uiEvent = JSEvents.uiEvent;
  HEAP32[uiEvent >> 2] = e.detail;
  HEAP32[uiEvent + 4 >> 2] = b.clientWidth;
  HEAP32[uiEvent + 8 >> 2] = b.clientHeight;
  HEAP32[uiEvent + 12 >> 2] = innerWidth;
  HEAP32[uiEvent + 16 >> 2] = innerHeight;
  HEAP32[uiEvent + 20 >> 2] = outerWidth;
  HEAP32[uiEvent + 24 >> 2] = outerHeight;
  HEAP32[uiEvent + 28 >> 2] = pageXOffset;
  HEAP32[uiEvent + 32 >> 2] = pageYOffset;
  if (wasmTable.get(callbackfunc)(eventTypeId, uiEvent, userData)) e.preventDefault();
 };
 var eventHandler = {
  target: target,
  eventTypeString: eventTypeString,
  callbackfunc: callbackfunc,
  handlerFunc: uiEventHandlerFunc,
  useCapture: useCapture
 };
 JSEvents.registerOrRemoveHandler(eventHandler);
}

function _emscripten_set_resize_callback_on_thread(target, userData, useCapture, callbackfunc, targetThread) {
 registerUiEventCallback(target, userData, useCapture, callbackfunc, 10, "resize", targetThread);
 return 0;
}

var ENV = {};

function getExecutableName() {
 return thisProgram || "./this.program";
}

function getEnvStrings() {
 if (!getEnvStrings.strings) {
  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()
  };
  for (var x in ENV) {
   env[x] = ENV[x];
  }
  var strings = [];
  for (var x in env) {
   strings.push(x + "=" + env[x]);
  }
  getEnvStrings.strings = strings;
 }
 return getEnvStrings.strings;
}

function _environ_get(__environ, environ_buf) {
 try {
  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;
 } catch (e) {
  if (typeof FS === "undefined" || !(e instanceof FS.ErrnoError)) abort(e);
  return e.errno;
 }
}

function _environ_sizes_get(penviron_count, penviron_buf_size) {
 try {
  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;
 } catch (e) {
  if (typeof FS === "undefined" || !(e instanceof FS.ErrnoError)) abort(e);
  return e.errno;
 }
}

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 = 4294967296;
  var offset = offset_high * HIGH_OFFSET + (offset_low >>> 0);
  var DOUBLE_LIMIT = 9007199254740992;
  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 ? tempDouble > 0 ? (Math.min(+Math.floor(tempDouble / 4294967296), 4294967295) | 0) >>> 0 : ~~+Math.ceil((tempDouble - +(~~tempDouble >>> 0)) / 4294967296) >>> 0 : 0) ], 
  HEAP32[newOffset >> 2] = tempI64[0], HEAP32[newOffset + 4 >> 2] = tempI64[1];
  if (stream.getdents && offset === 0 && whence === 0) stream.getdents = null;
  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) {
 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) {
 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) {
 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) {
 return !!(ctx.dibvbi = ctx.getExtension("WEBGL_draw_instanced_base_vertex_base_instance"));
}

function __webgl_enable_WEBGL_multi_draw_instanced_base_vertex_base_instance(ctx) {
 return !!(ctx.mdibvbi = ctx.getExtension("WEBGL_multi_draw_instanced_base_vertex_base_instance"));
}

function __webgl_enable_WEBGL_multi_draw(ctx) {
 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) {
  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);
  if (!ctx) return 0;
  var handle = GL.registerContext(ctx, webGLContextAttributes);
  return handle;
 },
 registerContext: function(ctx, webGLContextAttributes) {
  var handle = GL.getNewId(GL.contexts);
  var context = {
   handle: handle,
   attributes: webGLContextAttributes,
   version: webGLContextAttributes.majorVersion,
   GLctx: ctx
  };
  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];
  Module.ctx = GLctx = GL.currentContext && GL.currentContext.GLctx;
  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);
  if (GL.contexts[contextHandle] && GL.contexts[contextHandle].GLctx.canvas) GL.contexts[contextHandle].GLctx.canvas.GLctxObject = undefined;
  GL.contexts[contextHandle] = null;
 },
 initExtensions: function(context) {
  if (!context) context = GL.currentContext;
  if (context.initExtensionsDone) return;
  context.initExtensionsDone = true;
  var GLctx = context.GLctx;
  __webgl_enable_ANGLE_instanced_arrays(GLctx);
  __webgl_enable_OES_vertex_array_object(GLctx);
  __webgl_enable_WEBGL_draw_buffers(GLctx);
  __webgl_enable_WEBGL_draw_instanced_base_vertex_base_instance(GLctx);
  __webgl_enable_WEBGL_multi_draw_instanced_base_vertex_base_instance(GLctx);
  if (context.version >= 2) {
   GLctx.disjointTimerQueryExt = GLctx.getExtension("EXT_disjoint_timer_query_webgl2");
  }
  if (context.version < 2 || !GLctx.disjointTimerQueryExt) {
   GLctx.disjointTimerQueryExt = GLctx.getExtension("EXT_disjoint_timer_query");
  }
  __webgl_enable_WEBGL_multi_draw(GLctx);
  var exts = GLctx.getSupportedExtensions() || [];
  exts.forEach(function(ext) {
   if (!ext.includes("lose_context") && !ext.includes("debug")) {
    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 == 35051) {
  GLctx.currentPixelPackBufferBinding = buffer;
 } else if (target == 35052) {
  GLctx.currentPixelUnpackBufferBinding = buffer;
 }
 GLctx.bindBuffer(target, GL.buffers[buffer]);
}

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) {
  if (data) {
   GLctx.bufferData(target, HEAPU8, usage, data, size);
  } else {
   GLctx.bufferData(target, size, usage);
  }
 } else {
  GLctx.bufferData(target, data ? HEAPU8.subarray(data, data + size) : size, usage);
 }
}

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();
 program.name = id;
 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];
  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) {
  GL.recordError(1281);
  return;
 }
 GLctx.deleteShader(shader);
 GL.shaders[id] = null;
}

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

function _glDrawArrays(mode, first, count) {
 GLctx.drawArrays(mode, first, count);
}

function _glEnable(x0) {
 GLctx["enable"](x0);
}

function _glEnableVertexAttribArray(index) {
 GLctx.enableVertexAttribArray(index);
}

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(1282);
  }
  HEAP32[buffers + i * 4 >> 2] = id;
 }
}

function _glGenBuffers(n, buffers) {
 __glGenObject(n, buffers, "createBuffer", GL.buffers);
}

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

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

function _glGenerateMipmap(x0) {
 GLctx["generateMipmap"](x0);
}

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

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) {
  GL.recordError(1281);
  return;
 }
 if (program >= GL.counter) {
  GL.recordError(1281);
  return;
 }
 program = GL.programs[program];
 if (pname == 35716) {
  var log = GLctx.getProgramInfoLog(program);
  if (log === null) log = "(unknown error)";
  HEAP32[p >> 2] = log.length + 1;
 } else if (pname == 35719) {
  if (!program.maxUniformLength) {
   for (var i = 0; i < GLctx.getProgramParameter(program, 35718); ++i) {
    program.maxUniformLength = Math.max(program.maxUniformLength, GLctx.getActiveUniform(program, i).name.length + 1);
   }
  }
  HEAP32[p >> 2] = program.maxUniformLength;
 } else if (pname == 35722) {
  if (!program.maxAttributeLength) {
   for (var i = 0; i < GLctx.getProgramParameter(program, 35721); ++i) {
    program.maxAttributeLength = Math.max(program.maxAttributeLength, GLctx.getActiveAttrib(program, i).name.length + 1);
   }
  }
  HEAP32[p >> 2] = program.maxAttributeLength;
 } else if (pname == 35381) {
  if (!program.maxUniformBlockNameLength) {
   for (var i = 0; i < GLctx.getProgramParameter(program, 35382); ++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) {
  GL.recordError(1281);
  return;
 }
 if (pname == 35716) {
  var log = GLctx.getShaderInfoLog(GL.shaders[shader]);
  if (log === null) log = "(unknown error)";
  var logLength = log ? log.length + 1 : 0;
  HEAP32[p >> 2] = logLength;
 } else if (pname == 35720) {
  var source = GLctx.getShaderSource(GL.shaders[shader]);
  var sourceLength = source ? source.length + 1 : 0;
  HEAP32[p >> 2] = sourceLength;
 } else {
  HEAP32[p >> 2] = GLctx.getShaderParameter(GL.shaders[shader], pname);
 }
}

function jstoi_q(str) {
 return parseInt(str);
}

function _glGetUniformLocation(program, name) {
 function getLeftBracePos(name) {
  return name.slice(-1) == "]" && name.lastIndexOf("[");
 }
 name = UTF8ToString(name);
 if (program = GL.programs[program]) {
  var uniformLocsById = program.uniformLocsById;
  var uniformSizeAndIdsByName = program.uniformSizeAndIdsByName;
  var i, j;
  var arrayIndex = 0;
  var uniformBaseName = name;
  var leftBrace = getLeftBracePos(name);
  if (!uniformLocsById) {
   program.uniformLocsById = uniformLocsById = {};
   program.uniformArrayNamesById = {};
   for (i = 0; i < GLctx.getProgramParameter(program, 35718); ++i) {
    var u = GLctx.getActiveUniform(program, i);
    var nm = u.name;
    var sz = u.size;
    var lb = getLeftBracePos(nm);
    var arrayName = lb > 0 ? nm.slice(0, lb) : nm;
    var id = program.uniformIdCounter;
    program.uniformIdCounter += sz;
    uniformSizeAndIdsByName[arrayName] = [ sz, id ];
    for (j = 0; j < sz; ++j) {
     uniformLocsById[id] = j;
     program.uniformArrayNamesById[id++] = arrayName;
    }
   }
  }
  if (leftBrace > 0) {
   arrayIndex = jstoi_q(name.slice(leftBrace + 1)) >>> 0;
   uniformBaseName = name.slice(0, leftBrace);
  }
  var sizeAndId = uniformSizeAndIdsByName[uniformBaseName];
  if (sizeAndId && arrayIndex < sizeAndId[0]) {
   arrayIndex += sizeAndId[1];
   if (uniformLocsById[arrayIndex] = uniformLocsById[arrayIndex] || GLctx.getUniformLocation(program, name)) {
    return arrayIndex;
   }
  }
 } else {
  GL.recordError(1281);
 }
 return -1;
}

function _glLinkProgram(program) {
 program = GL.programs[program];
 GLctx.linkProgram(program);
 program.uniformLocsById = 0;
 program.uniformSizeAndIdsByName = {};
}

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) {
 var colorChannels = {
  5: 3,
  6: 4,
  8: 2,
  29502: 3,
  29504: 4,
  26917: 2,
  26918: 2,
  29846: 3,
  29847: 4
 };
 return colorChannels[format - 6402] || 1;
}

function heapObjectForWebGLType(type) {
 type -= 5120;
 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) {
  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 webglGetUniformLocation(location) {
 var p = GLctx.currentProgram;
 if (p) {
  var webglLoc = p.uniformLocsById[location];
  if (webglLoc >= 0) {
   p.uniformLocsById[location] = webglLoc = GLctx.getUniformLocation(p, p.uniformArrayNamesById[location] + (webglLoc > 0 ? "[" + webglLoc + "]" : ""));
  }
  return webglLoc;
 } else {
  GL.recordError(1282);
 }
}

function _glUniform1f(location, v0) {
 GLctx.uniform1f(webglGetUniformLocation(location), v0);
}

function _glUniform3f(location, v0, v1, v2) {
 GLctx.uniform3f(webglGetUniformLocation(location), v0, v1, v2);
}

var miniTempWebGLFloatBuffers = [];

function _glUniform3fv(location, count, value) {
 if (GL.currentContext.version >= 2) {
  GLctx.uniform3fv(webglGetUniformLocation(location), HEAPF32, value >> 2, count * 3);
  return;
 }
 if (count <= 96) {
  var view = miniTempWebGLFloatBuffers[3 * count - 1];
  for (var i = 0; i < 3 * count; i += 3) {
   view[i] = HEAPF32[value + 4 * i >> 2];
   view[i + 1] = HEAPF32[value + (4 * i + 4) >> 2];
   view[i + 2] = HEAPF32[value + (4 * i + 8) >> 2];
  }
 } else {
  var view = HEAPF32.subarray(value >> 2, value + count * 12 >> 2);
 }
 GLctx.uniform3fv(webglGetUniformLocation(location), view);
}

function _glUniformMatrix4fv(location, count, transpose, value) {
 if (GL.currentContext.version >= 2) {
  GLctx.uniformMatrix4fv(webglGetUniformLocation(location), !!transpose, HEAPF32, value >> 2, count * 16);
  return;
 }
 if (count <= 18) {
  var view = miniTempWebGLFloatBuffers[16 * count - 1];
  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);
 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);
}

function GLFW_Window(id, width, height, title, monitor, share) {
 this.id = id;
 this.x = 0;
 this.y = 0;
 this.fullscreen = false;
 this.storedX = 0;
 this.storedY = 0;
 this.width = width;
 this.height = height;
 this.storedWidth = width;
 this.storedHeight = height;
 this.title = title;
 this.monitor = monitor;
 this.share = share;
 this.attributes = GLFW.hints;
 this.inputModes = {
  208897: 212993,
  208898: 0,
  208899: 0
 };
 this.buttons = 0;
 this.keys = new Array();
 this.domKeys = new Array();
 this.shouldClose = 0;
 this.title = null;
 this.windowPosFunc = null;
 this.windowSizeFunc = null;
 this.windowCloseFunc = null;
 this.windowRefreshFunc = null;
 this.windowFocusFunc = null;
 this.windowIconifyFunc = null;
 this.framebufferSizeFunc = null;
 this.mouseButtonFunc = null;
 this.cursorPosFunc = null;
 this.cursorEnterFunc = null;
 this.scrollFunc = null;
 this.dropFunc = null;
 this.keyFunc = null;
 this.charFunc = null;
 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) {
  case 32:
   return 32;

  case 222:
   return 39;

  case 188:
   return 44;

  case 173:
   return 45;

  case 189:
   return 45;

  case 190:
   return 46;

  case 191:
   return 47;

  case 48:
   return 48;

  case 49:
   return 49;

  case 50:
   return 50;

  case 51:
   return 51;

  case 52:
   return 52;

  case 53:
   return 53;

  case 54:
   return 54;

  case 55:
   return 55;

  case 56:
   return 56;

  case 57:
   return 57;

  case 59:
   return 59;

  case 61:
   return 61;

  case 187:
   return 61;

  case 65:
   return 65;

  case 66:
   return 66;

  case 67:
   return 67;

  case 68:
   return 68;

  case 69:
   return 69;

  case 70:
   return 70;

  case 71:
   return 71;

  case 72:
   return 72;

  case 73:
   return 73;

  case 74:
   return 74;

  case 75:
   return 75;

  case 76:
   return 76;

  case 77:
   return 77;

  case 78:
   return 78;

  case 79:
   return 79;

  case 80:
   return 80;

  case 81:
   return 81;

  case 82:
   return 82;

  case 83:
   return 83;

  case 84:
   return 84;

  case 85:
   return 85;

  case 86:
   return 86;

  case 87:
   return 87;

  case 88:
   return 88;

  case 89:
   return 89;

  case 90:
   return 90;

  case 219:
   return 91;

  case 220:
   return 92;

  case 221:
   return 93;

  case 192:
   return 94;

  case 27:
   return 256;

  case 13:
   return 257;

  case 9:
   return 258;

  case 8:
   return 259;

  case 45:
   return 260;

  case 46:
   return 261;

  case 39:
   return 262;

  case 37:
   return 263;

  case 40:
   return 264;

  case 38:
   return 265;

  case 33:
   return 266;

  case 34:
   return 267;

  case 36:
   return 268;

  case 35:
   return 269;

  case 20:
   return 280;

  case 145:
   return 281;

  case 144:
   return 282;

  case 44:
   return 283;

  case 19:
   return 284;

  case 112:
   return 290;

  case 113:
   return 291;

  case 114:
   return 292;

  case 115:
   return 293;

  case 116:
   return 294;

  case 117:
   return 295;

  case 118:
   return 296;

  case 119:
   return 297;

  case 120:
   return 298;

  case 121:
   return 299;

  case 122:
   return 300;

  case 123:
   return 301;

  case 124:
   return 302;

  case 125:
   return 303;

  case 126:
   return 304;

  case 127:
   return 305;

  case 128:
   return 306;

  case 129:
   return 307;

  case 130:
   return 308;

  case 131:
   return 309;

  case 132:
   return 310;

  case 133:
   return 311;

  case 134:
   return 312;

  case 135:
   return 313;

  case 136:
   return 314;

  case 96:
   return 320;

  case 97:
   return 321;

  case 98:
   return 322;

  case 99:
   return 323;

  case 100:
   return 324;

  case 101:
   return 325;

  case 102:
   return 326;

  case 103:
   return 327;

  case 104:
   return 328;

  case 105:
   return 329;

  case 110:
   return 330;

  case 111:
   return 331;

  case 106:
   return 332;

  case 109:
   return 333;

  case 107:
   return 334;

  case 16:
   return 340;

  case 17:
   return 341;

  case 18:
   return 342;

  case 91:
   return 343;

  case 93:
   return 348;

  default:
   return -1;
  }
 },
 getModBits: function(win) {
  var mod = 0;
  if (win.keys[340]) mod |= 1;
  if (win.keys[341]) mod |= 2;
  if (win.keys[342]) mod |= 4;
  if (win.keys[343]) mod |= 8;
  return mod;
 },
 onKeyPress: function(event) {
  if (!GLFW.active || !GLFW.active.charFunc) return;
  if (event.ctrlKey || event.metaKey) return;
  var charCode = event.charCode;
  if (charCode == 0 || charCode >= 0 && charCode <= 31) return;
  wasmTable.get(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;
  wasmTable.get(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);
  if (event.keyCode === 8 || event.keyCode === 9) {
   event.preventDefault();
  }
 },
 onKeyup: function(event) {
  GLFW.onKeyChanged(event.keyCode, 0);
 },
 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);
   }
  }
 },
 onMousemove: function(event) {
  if (!GLFW.active) return;
  Browser.calculateMouseEvent(event);
  if (event.target != Module["canvas"] || !GLFW.active.cursorPosFunc) return;
  wasmTable.get(GLFW.active.cursorPosFunc)(GLFW.active.id, Browser.mouseX, Browser.mouseY);
 },
 DOMToGLFWMouseButton: function(event) {
  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;
  wasmTable.get(GLFW.active.cursorEnterFunc)(GLFW.active.id, 1);
 },
 onMouseleave: function(event) {
  if (!GLFW.active) return;
  if (event.target != Module["canvas"] || !GLFW.active.cursorEnterFunc) return;
  wasmTable.get(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.active.buttons |= 1 << eventButton;
   try {
    event.target.setCapture();
   } catch (e) {}
  } else {
   GLFW.active.buttons &= ~(1 << eventButton);
  }
  if (!GLFW.active.mouseButtonFunc) return;
  wasmTable.get(GLFW.active.mouseButtonFunc)(GLFW.active.id, eventButton, status, GLFW.getModBits(GLFW.active));
 },
 onMouseButtonDown: function(event) {
  if (!GLFW.active) return;
  GLFW.onMouseButtonChanged(event, 1);
 },
 onMouseButtonUp: function(event) {
  if (!GLFW.active) return;
  GLFW.onMouseButtonChanged(event, 0);
 },
 onMouseWheel: function(event) {
  var delta = -Browser.getMouseWheelDelta(event);
  delta = delta == 0 ? 0 : delta > 0 ? Math.max(delta, 1) : Math.min(delta, -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;
  }
  wasmTable.get(GLFW.active.scrollFunc)(GLFW.active.id, sx, sy);
  event.preventDefault();
 },
 onCanvasResize: function(width, height) {
  if (!GLFW.active) return;
  var resizeNeeded = true;
  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;
  } 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;
  } else if (GLFW.active.width != width || GLFW.active.height != height) {
   GLFW.active.width = width;
   GLFW.active.height = height;
  } else {
   resizeNeeded = false;
  }
  if (resizeNeeded) {
   Browser.setCanvasSize(GLFW.active.width, GLFW.active.height, true);
   GLFW.onWindowSizeChanged();
   GLFW.onFramebufferSizeChanged();
  }
 },
 onWindowSizeChanged: function() {
  if (!GLFW.active) return;
  if (!GLFW.active.windowSizeFunc) return;
  wasmTable.get(GLFW.active.windowSizeFunc)(GLFW.active.id, GLFW.active.width, GLFW.active.height);
 },
 onFramebufferSizeChanged: function() {
  if (!GLFW.active) return;
  if (!GLFW.active.framebufferSizeFunc) return;
  wasmTable.get(GLFW.active.framebufferSizeFunc)(GLFW.active.id, GLFW.active.width, GLFW.active.height);
 },
 getTime: function() {
  return _emscripten_get_now() / 1e3;
 },
 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() {
  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]) {
      console.log("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) {
       wasmTable.get(GLFW.joystickFunc)(joy, 262145);
      }
     }
     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]) {
      console.log("glfw joystick disconnected", joy);
      if (GLFW.joystickFunc) {
       wasmTable.get(GLFW.joystickFunc)(joy, 262146);
      }
      _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;
  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) {
     ++written;
     console.log("failed to read dropped file: " + file.name + ": " + reader.error);
     return;
    }
    var data = e.target.result;
    FS.writeFile(path, new Uint8Array(data));
    if (++written === count) {
     wasmTable.get(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 208897:
   {
    switch (value) {
    case 212993:
     {
      win.inputModes[mode] = value;
      Module["canvas"].removeEventListener("click", GLFW.onClickRequestPointerLock, true);
      Module["canvas"].exitPointerLock();
      break;
     }

    case 212994:
     {
      console.log("glfwSetInputMode called with GLFW_CURSOR_HIDDEN value not implemented.");
      break;
     }

    case 212995:
     {
      win.inputModes[mode] = value;
      Module["canvas"].addEventListener("click", GLFW.onClickRequestPointerLock, true);
      Module["canvas"].requestPointerLock();
      break;
     }

    default:
     {
      console.log("glfwSetInputMode called with unknown value parameter value: " + value + ".");
      break;
     }
    }
    break;
   }

  case 208898:
   {
    console.log("glfwSetInputMode called with GLFW_STICKY_KEYS mode not implemented.");
    break;
   }

  case 208899:
   {
    console.log("glfwSetInputMode called with GLFW_STICKY_MOUSE_BUTTONS mode not implemented.");
    break;
   }

  default:
   {
    console.log("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;
  wasmTable.get(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++) {}
  if (i > 0) throw "glfwCreateWindow only supports one window at time currently";
  id = i + 1;
  if (width <= 0 || height <= 0) return 0;
  if (monitor) {
   Browser.requestFullscreen();
  } else {
   Browser.setCanvasSize(width, height);
  }
  for (i = 0; i < GLFW.windows.length && GLFW.windows[i] == null; i++) {}
  var useWebGL = GLFW.hints[139265] > 0;
  if (i == GLFW.windows.length) {
   if (useWebGL) {
    var contextAttributes = {
     antialias: GLFW.hints[135181] > 1,
     depth: GLFW.hints[135173] > 0,
     stencil: GLFW.hints[135174] > 0,
     alpha: GLFW.hints[135172] > 0
    };
    Module.ctx = Browser.createContext(Module["canvas"], true, true, contextAttributes);
   } else {
    Browser.init();
   }
  }
  if (!Module.ctx && useWebGL) return 0;
  var win = new GLFW_Window(id, width, height, title, monitor, share);
  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) wasmTable.get(win.windowCloseFunc)(win.id);
  GLFW.windows[win.id - 1] = null;
  if (GLFW.active.id == win.id) GLFW.active = null;
  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 = {
   196609: 0,
   196610: 0,
   196611: 0,
   196612: 0,
   196613: 0,
   196614: 0,
   131073: 0,
   131074: 0,
   131075: 0,
   131076: 0,
   131077: 135169,
   131078: 135170,
   131079: 135171,
   131080: 135172,
   131081: 135173,
   131082: 135174,
   131083: 135183,
   131084: 135175,
   131085: 135176,
   131086: 135177,
   131087: 135178,
   131088: 135179,
   131089: 135180,
   131090: 0,
   131091: 135181,
   131092: 139266,
   131093: 139267,
   131094: 139270,
   131095: 139271,
   131096: 139272
  };
  return table[param];
 }
};

function _glfwCreateWindow(width, height, title, monitor, share) {
 return GLFW.createWindow(width, height, title, monitor, share);
}

function _glfwDefaultWindowHints() {
 GLFW.hints = GLFW.defaultHints;
}

function _glfwGetTime() {
 return GLFW.getTime() - GLFW.initialTime;
}

function _glfwInit() {
 if (GLFW.windows) return 1;
 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;
}

function _glfwMakeContextCurrent(winid) {}

function _glfwPollEvents() {}

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 _glfwSetWindowSize(winid, width, height) {
 GLFW.setWindowSize(winid, width, height);
}

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 __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++]) {}
 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()) {
   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 {
   newDate.setDate(newDate.getDate() + days);
   return newDate;
  }
 }
 return newDate;
}

function _strftime(s, maxsize, format, tm) {
 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);
 var EXPANSION_RULES_1 = {
  "%c": "%a %b %d %H:%M:%S %Y",
  "%D": "%m/%d/%y",
  "%F": "%Y-%m-%d",
  "%h": "%b",
  "%r": "%I:%M:%S %p",
  "%R": "%H:%M",
  "%T": "%H:%M:%S",
  "%x": "%m/%d/%y",
  "%X": "%H:%M:%S",
  "%Ec": "%c",
  "%EC": "%C",
  "%Ex": "%m/%d/%y",
  "%EX": "%H:%M:%S",
  "%Ey": "%y",
  "%EY": "%Y",
  "%Od": "%d",
  "%Oe": "%e",
  "%OH": "%H",
  "%OI": "%I",
  "%Om": "%m",
  "%OM": "%M",
  "%OS": "%S",
  "%Ou": "%u",
  "%OU": "%U",
  "%OV": "%V",
  "%Ow": "%w",
  "%OW": "%W",
  "%Oy": "%y"
 };
 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:
   return new Date(janFourth.getFullYear() - 1, 11, 29);

  case 1:
   return janFourth;

  case 2:
   return new Date(janFourth.getFullYear(), 0, 3);

  case 3:
   return new Date(janFourth.getFullYear(), 0, 2);

  case 4:
   return new Date(janFourth.getFullYear(), 0, 1);

  case 5:
   return new Date(janFourth.getFullYear() - 1, 11, 31);

  case 6:
   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) {
   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) {
   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) {
   return leadingNulls(date.tm_mday + __arraySum(__isLeapYear(date.tm_year + 1900) ? __MONTH_DAYS_LEAP : __MONTH_DAYS_REGULAR, date.tm_mon - 1), 3);
  },
  "%m": function(date) {
   return leadingNulls(date.tm_mon + 1, 2);
  },
  "%M": function(date) {
   return leadingNulls(date.tm_min, 2);
  },
  "%n": function() {
   return "\n";
  },
  "%p": function(date) {
   if (date.tm_hour >= 0 && date.tm_hour < 12) {
    return "AM";
   } else {
    return "PM";
   }
  },
  "%S": function(date) {
   return leadingNulls(date.tm_sec, 2);
  },
  "%t": function() {
   return "\t";
  },
  "%u": function(date) {
   return date.tm_wday || 7;
  },
  "%U": function(date) {
   var 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);
   if (compareByDay(firstSunday, endDate) < 0) {
    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) {
   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) {
    return "53";
   }
   if (compareByDay(firstWeekStartNextYear, endDate) <= 0) {
    return "01";
   }
   var daysDifference;
   if (firstWeekStartThisYear.getFullYear() < date.tm_year + 1900) {
    daysDifference = date.tm_yday + 32 - firstWeekStartThisYear.getDate();
   } else {
    daysDifference = date.tm_yday + 1 - firstWeekStartThisYear.getDate();
   }
   return leadingNulls(Math.ceil(daysDifference / 7), 2);
  },
  "%w": function(date) {
   return date.tm_wday;
  },
  "%W": function(date) {
   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);
   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) {
   return (date.tm_year + 1900).toString().substring(2);
  },
  "%Y": function(date) {
   return date.tm_year + 1900;
  },
  "%z": function(date) {
   var off = date.tm_gmtoff;
   var ahead = off >= 0;
   off = Math.abs(off) / 60;
   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);
}

var FSNode = function(parent, name, mode, rdev) {
 if (!parent) {
  parent = this;
 }
 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 | 73;

var writeMode = 146;

Object.defineProperties(FSNode.prototype, {
 read: {
  get: function() {
   return (this.mode & readMode) === readMode;
  },
  set: function(val) {
   val ? this.mode |= readMode : this.mode &= ~readMode;
  }
 },
 write: {
  get: function() {
   return (this.mode & writeMode) === writeMode;
  },
  set: function(val) {
   val ? this.mode |= writeMode : this.mode &= ~writeMode;
  }
 },
 isFolder: {
  get: function() {
   return FS.isDir(this.mode);
  }
 },
 isDevice: {
  get: function() {
   return FS.isChrdev(this.mode);
  }
 }
});

FS.FSNode = FSNode;

FS.staticInit();

Module["FS_createPath"] = FS.createPath;

Module["FS_createDataFile"] = FS.createDataFile;

Module["FS_createPreloadedFile"] = FS.createPreloadedFile;

Module["FS_createLazyFile"] = FS.createLazyFile;

Module["FS_createDevice"] = FS.createDevice;

Module["FS_unlink"] = FS.unlink;

Module["requestFullscreen"] = function Module_requestFullscreen(lockPointer, resizeCanvas) {
 Browser.requestFullscreen(lockPointer, resizeCanvas);
};

Module["requestAnimationFrame"] = function Module_requestAnimationFrame(func) {
 Browser.requestAnimationFrame(func);
};

Module["setCanvasSize"] = function Module_setCanvasSize(width, height, noUpdates) {
 Browser.setCanvasSize(width, height, noUpdates);
};

Module["pauseMainLoop"] = function Module_pauseMainLoop() {
 Browser.mainLoop.pause();
};

Module["resumeMainLoop"] = function Module_resumeMainLoop() {
 Browser.mainLoop.resume();
};

Module["getUserMedia"] = function Module_getUserMedia() {
 Browser.getUserMedia();
};

Module["createContext"] = function Module_createContext(canvas, useWebGL, setInModule, webGLContextAttributes) {
 return Browser.createContext(canvas, useWebGL, setInModule, webGLContextAttributes);
};

var GLctx;

var miniTempWebGLFloatBuffersStorage = new Float32Array(288);

for (var i = 0; i < 288; ++i) {
 miniTempWebGLFloatBuffers[i] = miniTempWebGLFloatBuffersStorage.subarray(0, i + 1);
}

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;
}

var asmLibraryArg = {
 "H": ___assert_fail,
 "l": ___cxa_allocate_exception,
 "k": ___cxa_throw,
 "G": ___sys_fcntl64,
 "na": ___sys_ioctl,
 "oa": ___sys_open,
 "E": _abort,
 "D": _emscripten_get_element_css_size,
 "ia": _emscripten_memcpy_big,
 "p": _emscripten_resize_heap,
 "ha": _emscripten_set_fullscreenchange_callback_on_thread,
 "ga": _emscripten_set_main_loop,
 "fa": _emscripten_set_resize_callback_on_thread,
 "ma": _environ_get,
 "la": _environ_sizes_get,
 "F": _fd_close,
 "ka": _fd_read,
 "J": _fd_seek,
 "ja": _fd_write,
 "ea": _glActiveTexture,
 "C": _glAttachShader,
 "j": _glBindBuffer,
 "o": _glBindTexture,
 "e": _glBindVertexArray,
 "i": _glBufferData,
 "da": _glClear,
 "ca": _glClearColor,
 "B": _glCompileShader,
 "ba": _glCreateProgram,
 "A": _glCreateShader,
 "d": _glDeleteBuffers,
 "z": _glDeleteShader,
 "c": _glDeleteVertexArrays,
 "f": _glDrawArrays,
 "y": _glEnable,
 "n": _glEnableVertexAttribArray,
 "aa": _glGenBuffers,
 "x": _glGenTextures,
 "$": _glGenVertexArrays,
 "w": _glGenerateMipmap,
 "v": _glGetError,
 "_": _glGetProgramInfoLog,
 "Z": _glGetProgramiv,
 "Y": _glGetShaderInfoLog,
 "X": _glGetShaderiv,
 "b": _glGetUniformLocation,
 "W": _glLinkProgram,
 "u": _glShaderSource,
 "t": _glTexImage2D,
 "V": _glUniform1f,
 "U": _glUniform3f,
 "h": _glUniform3fv,
 "a": _glUniformMatrix4fv,
 "s": _glUseProgram,
 "m": _glVertexAttribPointer,
 "r": _glViewport,
 "T": _glfwCreateWindow,
 "S": _glfwDefaultWindowHints,
 "R": _glfwGetTime,
 "Q": _glfwInit,
 "P": _glfwMakeContextCurrent,
 "O": _glfwPollEvents,
 "N": _glfwSetFramebufferSizeCallback,
 "M": _glfwSetKeyCallback,
 "L": _glfwSetWindowSize,
 "K": _glfwSwapBuffers,
 "q": _glfwTerminate,
 "g": _glfwWindowHint,
 "I": _strftime_l
};

var asm = createWasm();

var ___wasm_call_ctors = Module["___wasm_call_ctors"] = function() {
 return (___wasm_call_ctors = Module["___wasm_call_ctors"] = Module["asm"]["qa"]).apply(null, arguments);
};

var _free = Module["_free"] = function() {
 return (_free = Module["_free"] = Module["asm"]["ra"]).apply(null, arguments);
};

var _main = Module["_main"] = function() {
 return (_main = Module["_main"] = Module["asm"]["sa"]).apply(null, arguments);
};

var _malloc = Module["_malloc"] = function() {
 return (_malloc = Module["_malloc"] = Module["asm"]["ta"]).apply(null, arguments);
};

var ___errno_location = Module["___errno_location"] = function() {
 return (___errno_location = Module["___errno_location"] = Module["asm"]["ua"]).apply(null, arguments);
};

var stackAlloc = Module["stackAlloc"] = function() {
 return (stackAlloc = Module["stackAlloc"] = Module["asm"]["va"]).apply(null, arguments);
};

Module["addRunDependency"] = addRunDependency;

Module["removeRunDependency"] = removeRunDependency;

Module["FS_createPath"] = FS.createPath;

Module["FS_createDataFile"] = FS.createDataFile;

Module["FS_createPreloadedFile"] = FS.createPreloadedFile;

Module["FS_createLazyFile"] = FS.createLazyFile;

Module["FS_createDevice"] = FS.createDevice;

Module["FS_unlink"] = FS.unlink;

var calledRun;

function ExitStatus(status) {
 this.name = "ExitStatus";
 this.message = "Program terminated with exit(" + status + ")";
 this.status = status;
}

var calledMain = false;

dependenciesFulfilled = function runCaller() {
 if (!calledRun) run();
 if (!calledRun) dependenciesFulfilled = runCaller;
};

function callMain(args) {
 var entryFunction = Module["_main"];
 var argc = 0;
 var argv = 0;
 try {
  var ret = entryFunction(argc, argv);
  exit(ret, true);
 } catch (e) {
  if (e instanceof ExitStatus) {
   return;
  } else if (e == "unwind") {
   return;
  } else {
   var toLog = e;
   if (e && typeof e === "object" && e.stack) {
    toLog = [ e, e.stack ];
   }
   err("exception thrown: " + toLog);
   quit_(1, e);
  }
 } finally {
  calledMain = true;
 }
}

function run(args) {
 args = args || arguments_;
 if (runDependencies > 0) {
  return;
 }
 preRun();
 if (runDependencies > 0) {
  return;
 }
 function doRun() {
  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();
 }
}

Module["run"] = run;

function exit(status, implicit) {
 EXITSTATUS = status;
 if (implicit && keepRuntimeAlive() && status === 0) {
  return;
 }
 if (keepRuntimeAlive()) {} else {
  exitRuntime();
  if (Module["onExit"]) Module["onExit"](status);
  ABORT = true;
 }
 quit_(status, new ExitStatus(status));
}

if (Module["preInit"]) {
 if (typeof Module["preInit"] == "function") Module["preInit"] = [ Module["preInit"] ];
 while (Module["preInit"].length > 0) {
  Module["preInit"].pop()();
 }
}

var shouldRunNow = true;

if (Module["noInitialRun"]) shouldRunNow = false;

run();
