havox/projects/percolation/index.js

// include: shell.js
// include: minimum_runtime_check.js
(function () {
  // "30.0.0" -> 300000
  function humanReadableVersionToPacked(str) {
    str = str.split('-')[0]; // Remove any trailing part from e.g. "12.53.3-alpha"
    var vers = str.split('.').slice(0, 3);
    while (vers.length < 3) vers.push('00');
    vers = vers.map((n, i, arr) => n.padStart(2, '0'));
    return vers.join('');
  }
  // 300000 -> "30.0.0"
  var packedVersionToHumanReadable = (n) =>
    [(n / 10000) | 0, ((n / 100) | 0) % 100, n % 100].join('.');

  var TARGET_NOT_SUPPORTED = 2147483647;

  // Note: We use a typeof check here instead of optional chaining using
  // globalThis because older browsers might not have globalThis defined.
  var currentNodeVersion =
    typeof process !== 'undefined' && process.versions?.node
      ? humanReadableVersionToPacked(process.versions.node)
      : TARGET_NOT_SUPPORTED;
  if (currentNodeVersion < 160000) {
    throw new Error(
      `This emscripten-generated code requires node v${packedVersionToHumanReadable(160000)} (detected v${packedVersionToHumanReadable(currentNodeVersion)})`
    );
  }

  var userAgent = typeof navigator !== 'undefined' && navigator.userAgent;
  if (!userAgent) {
    return;
  }

  var currentSafariVersion =
    userAgent.includes('Safari/') &&
    !userAgent.includes('Chrome/') &&
    userAgent.match(/Version\/(\d+\.?\d*\.?\d*)/)
      ? humanReadableVersionToPacked(
          userAgent.match(/Version\/(\d+\.?\d*\.?\d*)/)[1]
        )
      : TARGET_NOT_SUPPORTED;
  if (currentSafariVersion < 150000) {
    throw new Error(
      `This emscripten-generated code requires Safari v${packedVersionToHumanReadable(150000)} (detected v${currentSafariVersion})`
    );
  }

  var currentFirefoxVersion = userAgent.match(/Firefox\/(\d+(?:\.\d+)?)/)
    ? parseFloat(userAgent.match(/Firefox\/(\d+(?:\.\d+)?)/)[1])
    : TARGET_NOT_SUPPORTED;
  if (currentFirefoxVersion < 79) {
    throw new Error(
      `This emscripten-generated code requires Firefox v79 (detected v${currentFirefoxVersion})`
    );
  }

  var currentChromeVersion = userAgent.match(/Chrome\/(\d+(?:\.\d+)?)/)
    ? parseFloat(userAgent.match(/Chrome\/(\d+(?:\.\d+)?)/)[1])
    : TARGET_NOT_SUPPORTED;
  if (currentChromeVersion < 85) {
    throw new Error(
      `This emscripten-generated code requires Chrome v85 (detected v${currentChromeVersion})`
    );
  }
})();

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

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

// Attempt to auto-detect the environment
var ENVIRONMENT_IS_WEB = !!globalThis.window;
var ENVIRONMENT_IS_WORKER = !!globalThis.WorkerGlobalScope;
// N.b. Electron.js environment is simultaneously a NODE-environment, but
// also a web environment.
var ENVIRONMENT_IS_NODE =
  globalThis.process?.versions?.node && globalThis.process?.type != 'renderer';
var ENVIRONMENT_IS_SHELL =
  !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;

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

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

// In MODULARIZE mode _scriptName needs to be captured already at the very top of the page immediately when the page is parsed, so it is generated there
// before the page load. In non-MODULARIZE modes generate it here.
var _scriptName = globalThis.document?.currentScript?.src;

if (typeof __filename != 'undefined') {
  // Node
  _scriptName = __filename;
} else if (ENVIRONMENT_IS_WORKER) {
  _scriptName = self.location.href;
}

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

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

if (ENVIRONMENT_IS_NODE) {
  const isNode =
    globalThis.process?.versions?.node &&
    globalThis.process?.type != 'renderer';
  if (!isNode)
    throw new Error(
      'not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)'
    );

  // These modules will usually be used on Node.js. Load them eagerly to avoid
  // the complexity of lazy-loading.
  var fs = require('node:fs');

  scriptDirectory = __dirname + '/';

  // include: node_shell_read.js
  readBinary = (filename) => {
    // We need to re-wrap `file://` strings to URLs.
    filename = isFileURI(filename) ? new URL(filename) : filename;
    var ret = fs.readFileSync(filename);
    assert(Buffer.isBuffer(ret));
    return ret;
  };

  readAsync = async (filename, binary = true) => {
    // See the comment in the `readBinary` function.
    filename = isFileURI(filename) ? new URL(filename) : filename;
    var ret = fs.readFileSync(filename, binary ? undefined : 'utf8');
    assert(binary ? Buffer.isBuffer(ret) : typeof ret == 'string');
    return ret;
  };
  // end include: node_shell_read.js
  if (process.argv.length > 1) {
    thisProgram = process.argv[1].replace(/\\/g, '/');
  }

  arguments_ = process.argv.slice(2);

  // MODULARIZE will export the module in the proper place outside, we don't need to export here
  if (typeof module != 'undefined') {
    module['exports'] = Module;
  }

  quit_ = (status, toThrow) => {
    process.exitCode = status;
    throw toThrow;
  };
} else if (ENVIRONMENT_IS_SHELL) {
} else if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
  // Note that this includes Node.js workers when relevant (pthreads is enabled).
  // Node.js workers are detected as a combination of ENVIRONMENT_IS_WORKER and
  // ENVIRONMENT_IS_NODE.
  try {
    scriptDirectory = new URL('.', _scriptName).href; // includes trailing slash
  } catch {
    // Must be a `blob:` or `data:` URL (e.g. `blob:http://site.com/etc/etc`), we cannot
    // infer anything from them.
  }

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

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

    readAsync = async (url) => {
      // Fetch has some additional restrictions over XHR, like it can't be used on a file:// url.
      // See https://github.com/github/fetch/pull/92#issuecomment-140665932
      // Cordova or Electron apps are typically loaded from a file:// url.
      // So use XHR on webview if URL is a file URL.
      if (isFileURI(url)) {
        return new Promise((resolve, reject) => {
          var xhr = new XMLHttpRequest();
          xhr.open('GET', url, true);
          xhr.responseType = 'arraybuffer';
          xhr.onload = () => {
            if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) {
              // file URLs can return 0
              resolve(xhr.response);
              return;
            }
            reject(xhr.status);
          };
          xhr.onerror = reject;
          xhr.send(null);
        });
      }
      var response = await fetch(url, { credentials: 'same-origin' });
      if (response.ok) {
        return response.arrayBuffer();
      }
      throw new Error(response.status + ' : ' + response.url);
    };
    // end include: web_or_worker_shell_read.js
  }
} else {
  throw new Error('environment detection error');
}

var out = console.log.bind(console);
var err = console.error.bind(console);

var IDBFS = 'IDBFS is no longer included by default; build with -lidbfs.js';
var PROXYFS =
  'PROXYFS is no longer included by default; build with -lproxyfs.js';
var WORKERFS =
  'WORKERFS is no longer included by default; build with -lworkerfs.js';
var FETCHFS =
  'FETCHFS is no longer included by default; build with -lfetchfs.js';
var ICASEFS =
  'ICASEFS is no longer included by default; build with -licasefs.js';
var JSFILEFS =
  'JSFILEFS is no longer included by default; build with -ljsfilefs.js';
var OPFS = 'OPFS is no longer included by default; build with -lopfs.js';

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

// perform assertions in shell.js after we set up out() and err(), as otherwise
// if an assertion fails it cannot print the message

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

// end include: shell.js

// include: preamble.js
// === Preamble library stuff ===

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

var wasmBinary;

if (!globalThis.WebAssembly) {
  err('no native wasm support detected');
}

// Wasm globals

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

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

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

// In STRICT mode, we only define assert() when ASSERTIONS is set.  i.e. we
// don't define it at all in release modes.  This matches the behaviour of
// MINIMAL_RUNTIME.
// TODO(sbc): Make this the default even without STRICT enabled.
/** @type {function(*, string=)} */
function assert(condition, text) {
  if (!condition) {
    abort('Assertion failed' + (text ? ': ' + text : ''));
  }
}

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

/**
 * Indicates whether filename is delivered via file protocol (as opposed to http/https)
 * @noinline
 */
var isFileURI = (filename) => filename.startsWith('file://');

// include: runtime_common.js
// include: runtime_stack_check.js
// Initializes the stack cookie. Called at the startup of main and at the startup of each thread in pthreads mode.
function writeStackCookie() {
  var max = _emscripten_stack_get_end();
  assert((max & 3) == 0);
  // If the stack ends at address zero we write our cookies 4 bytes into the
  // stack.  This prevents interference with SAFE_HEAP and ASAN which also
  // monitor writes to address zero.
  if (max == 0) {
    max += 4;
  }
  // The stack grow downwards towards _emscripten_stack_get_end.
  // We write cookies to the final two words in the stack and detect if they are
  // ever overwritten.
  HEAPU32[max >> 2] = 0x02135467;
  HEAPU32[(max + 4) >> 2] = 0x89bacdfe;
  // Also test the global address 0 for integrity.
  HEAPU32[0 >> 2] = 1668509029;
}

function checkStackCookie() {
  if (ABORT) return;
  var max = _emscripten_stack_get_end();
  // See writeStackCookie().
  if (max == 0) {
    max += 4;
  }
  var cookie1 = HEAPU32[max >> 2];
  var cookie2 = HEAPU32[(max + 4) >> 2];
  if (cookie1 != 0x02135467 || cookie2 != 0x89bacdfe) {
    abort(
      `Stack overflow! Stack cookie has been overwritten at ${ptrToString(max)}, expected hex dwords 0x89BACDFE and 0x2135467, but received ${ptrToString(cookie2)} ${ptrToString(cookie1)}`
    );
  }
  // Also test the global address 0 for integrity.
  if (HEAPU32[0 >> 2] != 0x63736d65 /* 'emsc' */) {
    abort(
      'Runtime error: The application has corrupted its heap memory area (address zero)!'
    );
  }
}
// end include: runtime_stack_check.js
// include: runtime_exceptions.js
// end include: runtime_exceptions.js
// include: runtime_debug.js
var runtimeDebug = true; // Switch to false at runtime to disable logging at the right times

// Used by XXXXX_DEBUG settings to output debug messages.
function dbg(...args) {
  if (!runtimeDebug && typeof runtimeDebug != 'undefined') return;
  // TODO(sbc): Make this configurable somehow.  Its not always convenient for
  // logging to show up as warnings.
  console.warn(...args);
}

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

function consumedModuleProp(prop) {
  if (!Object.getOwnPropertyDescriptor(Module, prop)) {
    Object.defineProperty(Module, prop, {
      configurable: true,
      set() {
        abort(
          `Attempt to set \`Module.${prop}\` after it has already been processed.  This can happen, for example, when code is injected via '--post-js' rather than '--pre-js'`
        );
      },
    });
  }
}

function makeInvalidEarlyAccess(name) {
  return () =>
    assert(
      false,
      `call to '${name}' via reference taken before Wasm module initialization`
    );
}

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

// forcing the filesystem exports a few things by default
function isExportedByForceFilesystem(name) {
  return (
    name === 'FS_createPath' ||
    name === 'FS_createDataFile' ||
    name === 'FS_createPreloadedFile' ||
    name === 'FS_preloadFile' ||
    name === 'FS_unlink' ||
    name === 'addRunDependency' ||
    // The old FS has some functionality that WasmFS lacks.
    name === 'FS_createLazyFile' ||
    name === 'FS_createDevice' ||
    name === 'removeRunDependency'
  );
}

/**
 * Intercept access to a symbols in the global symbol.  This enables us to give
 * informative warnings/errors when folks attempt to use symbols they did not
 * include in their build, or no symbols that no longer exist.
 *
 * We don't define this in MODULARIZE mode since in that mode emscripten symbols
 * are never placed in the global scope.
 */
function hookGlobalSymbolAccess(sym, func) {
  if (!Object.getOwnPropertyDescriptor(globalThis, sym)) {
    Object.defineProperty(globalThis, sym, {
      configurable: true,
      get() {
        func();
        return undefined;
      },
    });
  }
}

function missingGlobal(sym, msg) {
  hookGlobalSymbolAccess(sym, () => {
    warnOnce(`\`${sym}\` is no longer defined by emscripten. ${msg}`);
  });
}

missingGlobal('buffer', 'Please use HEAP8.buffer or wasmMemory.buffer');
missingGlobal('asm', 'Please use wasmExports instead');

function missingLibrarySymbol(sym) {
  hookGlobalSymbolAccess(sym, () => {
    // Can't `abort()` here because it would break code that does runtime
    // checks.  e.g. `if (typeof SDL === 'undefined')`.
    var msg = `\`${sym}\` is a library symbol and not included by default; add it to your library.js __deps or to DEFAULT_LIBRARY_FUNCS_TO_INCLUDE on the command line`;
    // DEFAULT_LIBRARY_FUNCS_TO_INCLUDE requires the name as it appears in
    // library.js, which means $name for a JS name with no prefix, or name
    // for a JS name like _name.
    var librarySymbol = sym;
    if (!librarySymbol.startsWith('_')) {
      librarySymbol = '$' + sym;
    }
    msg += ` (e.g. -sDEFAULT_LIBRARY_FUNCS_TO_INCLUDE='${librarySymbol}')`;
    if (isExportedByForceFilesystem(sym)) {
      msg +=
        '. Alternatively, forcing filesystem support (-sFORCE_FILESYSTEM) can export this for you';
    }
    warnOnce(msg);
  });

  // Any symbol that is not included from the JS library is also (by definition)
  // not exported on the Module object.
  unexportedRuntimeSymbol(sym);
}

function unexportedRuntimeSymbol(sym) {
  if (!Object.getOwnPropertyDescriptor(Module, sym)) {
    Object.defineProperty(Module, sym, {
      configurable: true,
      get() {
        var msg = `'${sym}' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the Emscripten FAQ)`;
        if (isExportedByForceFilesystem(sym)) {
          msg +=
            '. Alternatively, forcing filesystem support (-sFORCE_FILESYSTEM) can export this for you';
        }
        abort(msg);
      },
    });
  }
}

// end include: runtime_debug.js
// Memory management
var /** @type {!Int8Array} */
  HEAP8,
  /** @type {!Uint8Array} */
  HEAPU8,
  /** @type {!Int16Array} */
  HEAP16,
  /** @type {!Uint16Array} */
  HEAPU16,
  /** @type {!Int32Array} */
  HEAP32,
  /** @type {!Uint32Array} */
  HEAPU32,
  /** @type {!Float32Array} */
  HEAPF32,
  /** @type {!Float64Array} */
  HEAPF64;

// BigInt64Array type is not correctly defined in closure
var /** not-@type {!BigInt64Array} */
  HEAP64,
  /* BigUint64Array type is not correctly defined in closure
/** not-@type {!BigUint64Array} */
  HEAPU64;

var runtimeInitialized = false;

function updateMemoryViews() {
  var b = wasmMemory.buffer;
  HEAP8 = new Int8Array(b);
  HEAP16 = new Int16Array(b);
  HEAPU8 = new Uint8Array(b);
  HEAPU16 = new Uint16Array(b);
  HEAP32 = new Int32Array(b);
  HEAPU32 = new Uint32Array(b);
  HEAPF32 = new Float32Array(b);
  HEAPF64 = new Float64Array(b);
  HEAP64 = new BigInt64Array(b);
  HEAPU64 = new BigUint64Array(b);
}

// include: memoryprofiler.js
// end include: memoryprofiler.js
// end include: runtime_common.js
assert(
  globalThis.Int32Array &&
    globalThis.Float64Array &&
    Int32Array.prototype.subarray &&
    Int32Array.prototype.set,
  'JS engine does not provide full typed array support'
);

function preRun() {
  if (Module['preRun']) {
    if (typeof Module['preRun'] == 'function')
      Module['preRun'] = [Module['preRun']];
    while (Module['preRun'].length) {
      addOnPreRun(Module['preRun'].shift());
    }
  }
  consumedModuleProp('preRun');
  // Begin ATPRERUNS hooks
  callRuntimeCallbacks(onPreRuns);
  // End ATPRERUNS hooks
}

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

  checkStackCookie();

  // Begin ATINITS hooks
  if (!Module['noFSInit'] && !FS.initialized) FS.init();
  TTY.init();
  // End ATINITS hooks

  wasmExports['__wasm_call_ctors']();

  // Begin ATPOSTCTORS hooks
  FS.ignorePermissions = false;
  // End ATPOSTCTORS hooks
}

function preMain() {
  checkStackCookie();
  // No ATMAINS hooks
}

function postRun() {
  checkStackCookie();
  // PThreads reuse the runtime from the main thread.

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

  // Begin ATPOSTRUNS hooks
  callRuntimeCallbacks(onPostRuns);
  // End ATPOSTRUNS hooks
}

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

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

  ABORT = true;

  // Use a wasm runtime error, because a JS error might be seen as a foreign
  // exception, which means we'd run destructors on it. We need the error to
  // simply make the program stop.
  // FIXME This approach does not work in Wasm EH because it currently does not assume
  // all RuntimeErrors are from traps; it decides whether a RuntimeError is from
  // a trap or not based on a hidden field within the object. So at the moment
  // we don't have a way of throwing a wasm trap from JS. TODO Make a JS API that
  // allows this in the wasm spec.

  // Suppress closure compiler warning here. Closure compiler's builtin extern
  // definition for WebAssembly.RuntimeError claims it takes no arguments even
  // though it can.
  // TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure gets fixed.
  /** @suppress {checkTypes} */
  var e = new WebAssembly.RuntimeError(what);

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

function createExportWrapper(name, nargs) {
  return (...args) => {
    assert(
      runtimeInitialized,
      `native function \`${name}\` called before runtime initialization`
    );
    var f = wasmExports[name];
    assert(f, `exported native function \`${name}\` not found`);
    // Only assert for too many arguments. Too few can be valid since the missing arguments will be zero filled.
    assert(
      args.length <= nargs,
      `native function \`${name}\` called with ${args.length} args but expects ${nargs}`
    );
    return f(...args);
  };
}

var wasmBinaryFile;

function findWasmBinary() {
  return locateFile('index.wasm');
}

function getBinarySync(file) {
  if (file == wasmBinaryFile && wasmBinary) {
    return new Uint8Array(wasmBinary);
  }
  if (readBinary) {
    return readBinary(file);
  }
  // Throwing a plain string here, even though it not normally advisable since
  // this gets turning into an `abort` in instantiateArrayBuffer.
  throw 'both async and sync fetching of the wasm failed';
}

async function getWasmBinary(binaryFile) {
  // If we don't have the binary yet, load it asynchronously using readAsync.
  if (!wasmBinary) {
    // Fetch the binary using readAsync
    try {
      var response = await readAsync(binaryFile);
      return new Uint8Array(response);
    } catch {
      // Fall back to getBinarySync below;
    }
  }

  // Otherwise, getBinarySync should be able to get it synchronously
  return getBinarySync(binaryFile);
}

async function instantiateArrayBuffer(binaryFile, imports) {
  try {
    var binary = await getWasmBinary(binaryFile);
    var instance = await WebAssembly.instantiate(binary, imports);
    return instance;
  } catch (reason) {
    err(`failed to asynchronously prepare wasm: ${reason}`);

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

async function instantiateAsync(binary, binaryFile, imports) {
  if (
    !binary &&
    // Don't use streaming for file:// delivered objects in a webview, fetch them synchronously.
    !isFileURI(binaryFile) &&
    // Avoid instantiateStreaming() on Node.js environment for now, as while
    // Node.js v18.1.0 implements it, it does not have a full fetch()
    // implementation yet.
    //
    // Reference:
    //   https://github.com/emscripten-core/emscripten/pull/16917
    !ENVIRONMENT_IS_NODE
  ) {
    try {
      var response = fetch(binaryFile, { credentials: 'same-origin' });
      var instantiationResult = await WebAssembly.instantiateStreaming(
        response,
        imports
      );
      return instantiationResult;
    } catch (reason) {
      // We expect the most common failure cause to be a bad MIME type for the binary,
      // in which case falling back to ArrayBuffer instantiation should work.
      err(`wasm streaming compile failed: ${reason}`);
      err('falling back to ArrayBuffer instantiation');
      // fall back of instantiateArrayBuffer below
    }
  }
  return instantiateArrayBuffer(binaryFile, imports);
}

function getWasmImports() {
  // prepare imports
  var imports = {
    env: wasmImports,
    wasi_snapshot_preview1: wasmImports,
  };
  return imports;
}

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

    assignWasmExports(wasmExports);

    updateMemoryViews();

    removeRunDependency('wasm-instantiate');
    return wasmExports;
  }
  addRunDependency('wasm-instantiate');

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

  var info = getWasmImports();

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

  wasmBinaryFile ??= findWasmBinary();
  var result = await instantiateAsync(wasmBinary, wasmBinaryFile, info);
  var exports = receiveInstantiationResult(result);
  return exports;
}

// end include: preamble.js

// Begin JS library code

class ExitStatus {
  name = 'ExitStatus';
  constructor(status) {
    this.message = `Program terminated with exit(${status})`;
    this.status = status;
  }
}

var callRuntimeCallbacks = (callbacks) => {
  while (callbacks.length > 0) {
    // Pass the module as the first argument.
    callbacks.shift()(Module);
  }
};
var onPostRuns = [];
var addOnPostRun = (cb) => onPostRuns.push(cb);

var onPreRuns = [];
var addOnPreRun = (cb) => onPreRuns.push(cb);

var runDependencies = 0;

var dependenciesFulfilled = null;

var runDependencyTracking = {};

var runDependencyWatcher = null;
var removeRunDependency = (id) => {
  runDependencies--;

  Module['monitorRunDependencies']?.(runDependencies);

  assert(id, 'removeRunDependency requires an ID');
  assert(runDependencyTracking[id]);
  delete runDependencyTracking[id];
  if (runDependencies == 0) {
    if (runDependencyWatcher !== null) {
      clearInterval(runDependencyWatcher);
      runDependencyWatcher = null;
    }
    if (dependenciesFulfilled) {
      var callback = dependenciesFulfilled;
      dependenciesFulfilled = null;
      callback(); // can add another dependenciesFulfilled
    }
  }
};

var addRunDependency = (id) => {
  runDependencies++;

  Module['monitorRunDependencies']?.(runDependencies);

  assert(id, 'addRunDependency requires an ID');
  assert(!runDependencyTracking[id]);
  runDependencyTracking[id] = 1;
  if (runDependencyWatcher === null && globalThis.setInterval) {
    // Check for missing dependencies every few seconds
    runDependencyWatcher = setInterval(() => {
      if (ABORT) {
        clearInterval(runDependencyWatcher);
        runDependencyWatcher = null;
        return;
      }
      var shown = false;
      for (var dep in runDependencyTracking) {
        if (!shown) {
          shown = true;
          err('still waiting on run dependencies:');
        }
        err(`dependency: ${dep}`);
      }
      if (shown) {
        err('(end of list)');
      }
    }, 10000);
    // Prevent this timer from keeping the runtime alive if nothing
    // else is.
    runDependencyWatcher.unref?.();
  }
};

/**
 * @param {number} ptr
 * @param {string} type
 */
function getValue(ptr, type = 'i8') {
  if (type.endsWith('*')) type = '*';
  switch (type) {
    case 'i1':
      return HEAP8[ptr];
    case 'i8':
      return HEAP8[ptr];
    case 'i16':
      return HEAP16[ptr >> 1];
    case 'i32':
      return HEAP32[ptr >> 2];
    case 'i64':
      return HEAP64[ptr >> 3];
    case 'float':
      return HEAPF32[ptr >> 2];
    case 'double':
      return HEAPF64[ptr >> 3];
    case '*':
      return HEAPU32[ptr >> 2];
    default:
      abort(`invalid type for getValue: ${type}`);
  }
}

var noExitRuntime = true;

var ptrToString = (ptr) => {
  assert(
    typeof ptr === 'number',
    `ptrToString expects a number, got ${typeof ptr}`
  );
  // Convert to 32-bit unsigned value
  ptr >>>= 0;
  return '0x' + ptr.toString(16).padStart(8, '0');
};

/**
 * @param {number} ptr
 * @param {number} value
 * @param {string} type
 */
function setValue(ptr, value, type = 'i8') {
  if (type.endsWith('*')) type = '*';
  switch (type) {
    case 'i1':
      HEAP8[ptr] = value;
      break;
    case 'i8':
      HEAP8[ptr] = value;
      break;
    case 'i16':
      HEAP16[ptr >> 1] = value;
      break;
    case 'i32':
      HEAP32[ptr >> 2] = value;
      break;
    case 'i64':
      HEAP64[ptr >> 3] = BigInt(value);
      break;
    case 'float':
      HEAPF32[ptr >> 2] = value;
      break;
    case 'double':
      HEAPF64[ptr >> 3] = value;
      break;
    case '*':
      HEAPU32[ptr >> 2] = value;
      break;
    default:
      abort(`invalid type for setValue: ${type}`);
  }
}

var stackRestore = (val) => __emscripten_stack_restore(val);

var stackSave = () => _emscripten_stack_get_current();

var warnOnce = (text) => {
  warnOnce.shown ||= {};
  if (!warnOnce.shown[text]) {
    warnOnce.shown[text] = 1;
    if (ENVIRONMENT_IS_NODE) text = 'warning: ' + text;
    err(text);
  }
};

var UTF8Decoder = globalThis.TextDecoder && new TextDecoder();

var findStringEnd = (heapOrArray, idx, maxBytesToRead, ignoreNul) => {
  var maxIdx = idx + maxBytesToRead;
  if (ignoreNul) return maxIdx;
  // TextDecoder needs to know the byte length in advance, it doesn't stop on
  // null terminator by itself.
  // As a tiny code save trick, compare idx against maxIdx using a negation,
  // so that maxBytesToRead=undefined/NaN means Infinity.
  while (heapOrArray[idx] && !(idx >= maxIdx)) ++idx;
  return idx;
};

/**
 * Given a pointer 'idx' to a null-terminated UTF8-encoded string in the given
 * array that contains uint8 values, returns a copy of that string as a
 * Javascript String object.
 * heapOrArray is either a regular array, or a JavaScript typed array view.
 * @param {number=} idx
 * @param {number=} maxBytesToRead
 * @param {boolean=} ignoreNul - If true, the function will not stop on a NUL character.
 * @return {string}
 */
var UTF8ArrayToString = (heapOrArray, idx = 0, maxBytesToRead, ignoreNul) => {
  var endPtr = findStringEnd(heapOrArray, idx, maxBytesToRead, ignoreNul);

  // When using conditional TextDecoder, skip it for short strings as the overhead of the native call is not worth it.
  if (endPtr - idx > 16 && heapOrArray.buffer && UTF8Decoder) {
    return UTF8Decoder.decode(heapOrArray.subarray(idx, endPtr));
  }
  var str = '';
  while (idx < endPtr) {
    // For UTF8 byte structure, see:
    // http://en.wikipedia.org/wiki/UTF-8#Description
    // https://www.ietf.org/rfc/rfc2279.txt
    // https://tools.ietf.org/html/rfc3629
    var u0 = heapOrArray[idx++];
    if (!(u0 & 0x80)) {
      str += String.fromCharCode(u0);
      continue;
    }
    var u1 = heapOrArray[idx++] & 63;
    if ((u0 & 0xe0) == 0xc0) {
      str += String.fromCharCode(((u0 & 31) << 6) | u1);
      continue;
    }
    var u2 = heapOrArray[idx++] & 63;
    if ((u0 & 0xf0) == 0xe0) {
      u0 = ((u0 & 15) << 12) | (u1 << 6) | u2;
    } else {
      if ((u0 & 0xf8) != 0xf0)
        warnOnce(
          'Invalid UTF-8 leading byte ' +
            ptrToString(u0) +
            ' encountered when deserializing a UTF-8 string in wasm memory to a JS string!'
        );
      u0 =
        ((u0 & 7) << 18) | (u1 << 12) | (u2 << 6) | (heapOrArray[idx++] & 63);
    }

    if (u0 < 0x10000) {
      str += String.fromCharCode(u0);
    } else {
      var ch = u0 - 0x10000;
      str += String.fromCharCode(0xd800 | (ch >> 10), 0xdc00 | (ch & 0x3ff));
    }
  }
  return str;
};

/**
 * Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the
 * emscripten HEAP, returns a copy of that string as a Javascript String object.
 *
 * @param {number} ptr
 * @param {number=} maxBytesToRead - An optional length that specifies the
 *   maximum number of bytes to read. You can omit this parameter to scan the
 *   string until the first 0 byte. If maxBytesToRead is passed, and the string
 *   at [ptr, ptr+maxBytesToReadr[ contains a null byte in the middle, then the
 *   string will cut short at that byte index.
 * @param {boolean=} ignoreNul - If true, the function will not stop on a NUL character.
 * @return {string}
 */
var UTF8ToString = (ptr, maxBytesToRead, ignoreNul) => {
  assert(
    typeof ptr == 'number',
    `UTF8ToString expects a number (got ${typeof ptr})`
  );
  return ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead, ignoreNul) : '';
};
var ___assert_fail = (condition, filename, line, func) =>
  abort(
    `Assertion failed: ${UTF8ToString(condition)}, at: ` +
      [
        filename ? UTF8ToString(filename) : 'unknown filename',
        line,
        func ? UTF8ToString(func) : 'unknown function',
      ]
  );

var PATH = {
  isAbs: (path) => path.charAt(0) === '/',
  splitPath: (filename) => {
    var splitPathRe =
      /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
    return splitPathRe.exec(filename).slice(1);
  },
  normalizeArray: (parts, allowAboveRoot) => {
    // if the path tries to go above the root, `up` ends up > 0
    var up = 0;
    for (var i = parts.length - 1; i >= 0; i--) {
      var last = parts[i];
      if (last === '.') {
        parts.splice(i, 1);
      } else if (last === '..') {
        parts.splice(i, 1);
        up++;
      } else if (up) {
        parts.splice(i, 1);
        up--;
      }
    }
    // if the path is allowed to go above the root, restore leading ..s
    if (allowAboveRoot) {
      for (; up; up--) {
        parts.unshift('..');
      }
    }
    return parts;
  },
  normalize: (path) => {
    var isAbsolute = PATH.isAbs(path),
      trailingSlash = path.slice(-1) === '/';
    // Normalize the path
    path = PATH.normalizeArray(
      path.split('/').filter((p) => !!p),
      !isAbsolute
    ).join('/');
    if (!path && !isAbsolute) {
      path = '.';
    }
    if (path && trailingSlash) {
      path += '/';
    }
    return (isAbsolute ? '/' : '') + path;
  },
  dirname: (path) => {
    var result = PATH.splitPath(path),
      root = result[0],
      dir = result[1];
    if (!root && !dir) {
      // No dirname whatsoever
      return '.';
    }
    if (dir) {
      // It has a dirname, strip trailing slash
      dir = dir.slice(0, -1);
    }
    return root + dir;
  },
  basename: (path) => path && path.match(/([^\/]+|\/)\/*$/)[1],
  join: (...paths) => PATH.normalize(paths.join('/')),
  join2: (l, r) => PATH.normalize(l + '/' + r),
};

var initRandomFill = () => {
  // This block is not needed on v19+ since crypto.getRandomValues is builtin
  if (ENVIRONMENT_IS_NODE) {
    var nodeCrypto = require('node:crypto');
    return (view) => nodeCrypto.randomFillSync(view);
  }

  return (view) => crypto.getRandomValues(view);
};
var randomFill = (view) => {
  // Lazily init on the first invocation.
  (randomFill = initRandomFill())(view);
};

var PATH_FS = {
  resolve: (...args) => {
    var resolvedPath = '',
      resolvedAbsolute = false;
    for (var i = args.length - 1; i >= -1 && !resolvedAbsolute; i--) {
      var path = i >= 0 ? args[i] : FS.cwd();
      // Skip empty and invalid entries
      if (typeof path != 'string') {
        throw new TypeError('Arguments to path.resolve must be strings');
      } else if (!path) {
        return ''; // an invalid portion invalidates the whole thing
      }
      resolvedPath = path + '/' + resolvedPath;
      resolvedAbsolute = PATH.isAbs(path);
    }
    // At this point the path should be resolved to a full absolute path, but
    // handle relative paths to be safe (might happen when process.cwd() fails)
    resolvedPath = PATH.normalizeArray(
      resolvedPath.split('/').filter((p) => !!p),
      !resolvedAbsolute
    ).join('/');
    return (resolvedAbsolute ? '/' : '') + resolvedPath || '.';
  },
  relative: (from, to) => {
    from = PATH_FS.resolve(from).slice(1);
    to = PATH_FS.resolve(to).slice(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 FS_stdin_getChar_buffer = [];

var lengthBytesUTF8 = (str) => {
  var len = 0;
  for (var i = 0; i < str.length; ++i) {
    // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code
    // unit, not a Unicode code point of the character! So decode
    // UTF16->UTF32->UTF8.
    // See http://unicode.org/faq/utf_bom.html#utf16-3
    var c = str.charCodeAt(i); // possibly a lead surrogate
    if (c <= 0x7f) {
      len++;
    } else if (c <= 0x7ff) {
      len += 2;
    } else if (c >= 0xd800 && c <= 0xdfff) {
      len += 4;
      ++i;
    } else {
      len += 3;
    }
  }
  return len;
};

var stringToUTF8Array = (str, heap, outIdx, maxBytesToWrite) => {
  assert(
    typeof str === 'string',
    `stringToUTF8Array expects a string (got ${typeof str})`
  );
  // Parameter maxBytesToWrite is not optional. Negative values, 0, null,
  // undefined and false each don't write out any bytes.
  if (!(maxBytesToWrite > 0)) return 0;

  var startIdx = outIdx;
  var endIdx = outIdx + maxBytesToWrite - 1; // -1 for string null terminator.
  for (var i = 0; i < str.length; ++i) {
    // For UTF8 byte structure, see http://en.wikipedia.org/wiki/UTF-8#Description
    // and https://www.ietf.org/rfc/rfc2279.txt
    // and https://tools.ietf.org/html/rfc3629
    var u = str.codePointAt(i);
    if (u <= 0x7f) {
      if (outIdx >= endIdx) break;
      heap[outIdx++] = u;
    } else if (u <= 0x7ff) {
      if (outIdx + 1 >= endIdx) break;
      heap[outIdx++] = 0xc0 | (u >> 6);
      heap[outIdx++] = 0x80 | (u & 63);
    } else if (u <= 0xffff) {
      if (outIdx + 2 >= endIdx) break;
      heap[outIdx++] = 0xe0 | (u >> 12);
      heap[outIdx++] = 0x80 | ((u >> 6) & 63);
      heap[outIdx++] = 0x80 | (u & 63);
    } else {
      if (outIdx + 3 >= endIdx) break;
      if (u > 0x10ffff)
        warnOnce(
          'Invalid Unicode code point ' +
            ptrToString(u) +
            ' encountered when serializing a JS string to a UTF-8 string in wasm memory! (Valid unicode code points should be in range 0-0x10FFFF).'
        );
      heap[outIdx++] = 0xf0 | (u >> 18);
      heap[outIdx++] = 0x80 | ((u >> 12) & 63);
      heap[outIdx++] = 0x80 | ((u >> 6) & 63);
      heap[outIdx++] = 0x80 | (u & 63);
      // Gotcha: if codePoint is over 0xFFFF, it is represented as a surrogate pair in UTF-16.
      // We need to manually skip over the second code unit for correct iteration.
      i++;
    }
  }
  // Null-terminate the pointer to the buffer.
  heap[outIdx] = 0;
  return outIdx - startIdx;
};
/** @type {function(string, boolean=, number=)} */
var 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 FS_stdin_getChar = () => {
  if (!FS_stdin_getChar_buffer.length) {
    var result = null;
    if (ENVIRONMENT_IS_NODE) {
      // we will read data by chunks of BUFSIZE
      var BUFSIZE = 256;
      var buf = Buffer.alloc(BUFSIZE);
      var bytesRead = 0;

      // For some reason we must suppress a closure warning here, even though
      // fd definitely exists on process.stdin, and is even the proper way to
      // get the fd of stdin,
      // https://github.com/nodejs/help/issues/2136#issuecomment-523649904
      // This started to happen after moving this logic out of library_tty.js,
      // so it is related to the surrounding code in some unclear manner.
      /** @suppress {missingProperties} */
      var fd = process.stdin.fd;

      try {
        bytesRead = fs.readSync(fd, buf, 0, BUFSIZE);
      } catch (e) {
        // Cross-platform differences: on Windows, reading EOF throws an
        // exception, but on other OSes, reading EOF returns 0. Uniformize
        // behavior by treating the EOF exception to return 0.
        if (e.toString().includes('EOF')) bytesRead = 0;
        else throw e;
      }

      if (bytesRead > 0) {
        result = buf.slice(0, bytesRead).toString('utf-8');
      }
    } else if (globalThis.window?.prompt) {
      // Browser.
      result = window.prompt('Input: '); // returns null on cancel
      if (result !== null) {
        result += '\n';
      }
    } else {
    }
    if (!result) {
      return null;
    }
    FS_stdin_getChar_buffer = intArrayFromString(result, true);
  }
  return FS_stdin_getChar_buffer.shift();
};
var TTY = {
  ttys: [],
  init() {
    // https://github.com/emscripten-core/emscripten/pull/1555
    // if (ENVIRONMENT_IS_NODE) {
    //   // currently, FS.init does not distinguish if process.stdin is a file or TTY
    //   // device, it always assumes it's a TTY device. because of this, we're forcing
    //   // process.stdin to UTF8 encoding to at least make stdin reading compatible
    //   // with text files until FS.init can be refactored.
    //   process.stdin.setEncoding('utf8');
    // }
  },
  shutdown() {
    // https://github.com/emscripten-core/emscripten/pull/1555
    // if (ENVIRONMENT_IS_NODE) {
    //   // inolen: any idea as to why node -e 'process.stdin.read()' wouldn't exit immediately (with process.stdin being a tty)?
    //   // isaacs: because now it's reading from the stream, you've expressed interest in it, so that read() kicks off a _read() which creates a ReadReq operation
    //   // inolen: I thought read() in that case was a synchronous operation that just grabbed some amount of buffered data if it exists?
    //   // isaacs: it is. but it also triggers a _read() call, which calls readStart() on the handle
    //   // isaacs: do process.stdin.pause() and i'd think it'd probably close the pending call
    //   process.stdin.pause();
    // }
  },
  register(dev, ops) {
    TTY.ttys[dev] = { input: [], output: [], ops: ops };
    FS.registerDevice(dev, TTY.stream_ops);
  },
  stream_ops: {
    open(stream) {
      var tty = TTY.ttys[stream.node.rdev];
      if (!tty) {
        throw new FS.ErrnoError(43);
      }
      stream.tty = tty;
      stream.seekable = false;
    },
    close(stream) {
      // flush any pending line data
      stream.tty.ops.fsync(stream.tty);
    },
    fsync(stream) {
      stream.tty.ops.fsync(stream.tty);
    },
    read(stream, buffer, offset, length, pos /* ignored */) {
      if (!stream.tty || !stream.tty.ops.get_char) {
        throw new FS.ErrnoError(60);
      }
      var bytesRead = 0;
      for (var i = 0; i < length; i++) {
        var result;
        try {
          result = stream.tty.ops.get_char(stream.tty);
        } catch (e) {
          throw new FS.ErrnoError(29);
        }
        if (result === undefined && bytesRead === 0) {
          throw new FS.ErrnoError(6);
        }
        if (result === null || result === undefined) break;
        bytesRead++;
        buffer[offset + i] = result;
      }
      if (bytesRead) {
        stream.node.atime = Date.now();
      }
      return bytesRead;
    },
    write(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.mtime = stream.node.ctime = Date.now();
      }
      return i;
    },
  },
  default_tty_ops: {
    get_char(tty) {
      return FS_stdin_getChar();
    },
    put_char(tty, val) {
      if (val === null || val === 10) {
        out(UTF8ArrayToString(tty.output));
        tty.output = [];
      } else {
        if (val != 0) tty.output.push(val); // val == 0 would cut text output off in the middle.
      }
    },
    fsync(tty) {
      if (tty.output?.length > 0) {
        out(UTF8ArrayToString(tty.output));
        tty.output = [];
      }
    },
    ioctl_tcgets(tty) {
      // typical setting
      return {
        c_iflag: 25856,
        c_oflag: 5,
        c_cflag: 191,
        c_lflag: 35387,
        c_cc: [
          0x03, 0x1c, 0x7f, 0x15, 0x04, 0x00, 0x01, 0x00, 0x11, 0x13, 0x1a,
          0x00, 0x12, 0x0f, 0x17, 0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        ],
      };
    },
    ioctl_tcsets(tty, optional_actions, data) {
      // currently just ignore
      return 0;
    },
    ioctl_tiocgwinsz(tty) {
      return [24, 80];
    },
  },
  default_tty1_ops: {
    put_char(tty, val) {
      if (val === null || val === 10) {
        err(UTF8ArrayToString(tty.output));
        tty.output = [];
      } else {
        if (val != 0) tty.output.push(val);
      }
    },
    fsync(tty) {
      if (tty.output?.length > 0) {
        err(UTF8ArrayToString(tty.output));
        tty.output = [];
      }
    },
  },
};

var mmapAlloc = (size) => {
  abort(
    'internal error: mmapAlloc called but `emscripten_builtin_memalign` native symbol not exported'
  );
};
var MEMFS = {
  ops_table: null,
  mount(mount) {
    return MEMFS.createNode(null, '/', 16895, 0);
  },
  createNode(parent, name, mode, dev) {
    if (FS.isBlkdev(mode) || FS.isFIFO(mode)) {
      // not supported
      throw new FS.ErrnoError(63);
    }
    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,
          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;
      // The actual number of bytes used in the typed array, as opposed to
      // contents.length which gives the whole capacity.
      node.usedBytes = 0;
      // The byte data of the file is stored in a typed array.
      // Note: typed arrays are not resizable like normal JS arrays are, so
      // there is a small penalty involved for appending file writes that
      // continuously grow a file similar to std::vector capacity vs used.
      node.contents = MEMFS.emptyFileContents ??= new Uint8Array(0);
    } 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.atime = node.mtime = node.ctime = Date.now();
    // add the new node to the parent
    if (parent) {
      parent.contents[name] = node;
      parent.atime = parent.mtime = parent.ctime = node.atime;
    }
    return node;
  },
  getFileDataAsTypedArray(node) {
    assert(FS.isFile(node.mode), 'getFileDataAsTypedArray called on non-file');
    return node.contents.subarray(0, node.usedBytes); // Make sure to not return excess unused bytes.
  },
  expandFileStorage(node, newCapacity) {
    var prevCapacity = node.contents.length;
    if (prevCapacity >= newCapacity) return; // No need to expand, the storage was already large enough.
    // Don't expand strictly to the given requested limit if it's only a very
    // small increase, but instead geometrically grow capacity.
    // For small filesizes (<1MB), perform size*2 geometric increase, but for
    // large sizes, do a much more conservative size*1.125 increase to avoid
    // overshooting the allocation cap by a very large margin.
    var CAPACITY_DOUBLING_MAX = 1024 * 1024;
    newCapacity = Math.max(
      newCapacity,
      (prevCapacity * (prevCapacity < CAPACITY_DOUBLING_MAX ? 2.0 : 1.125)) >>>
        0
    );
    if (prevCapacity) newCapacity = Math.max(newCapacity, 256); // At minimum allocate 256b for each file when expanding.
    var oldContents = MEMFS.getFileDataAsTypedArray(node);
    node.contents = new Uint8Array(newCapacity); // Allocate new storage.
    node.contents.set(oldContents);
  },
  resizeFileStorage(node, newSize) {
    if (node.usedBytes == newSize) return;
    var oldContents = node.contents;
    node.contents = new Uint8Array(newSize); // Allocate new storage.
    node.contents.set(
      oldContents.subarray(0, Math.min(newSize, node.usedBytes))
    ); // Copy old data over to the new storage.
    node.usedBytes = newSize;
  },
  node_ops: {
    getattr(node) {
      var attr = {};
      // device numbers reuse inode numbers.
      attr.dev = FS.isChrdev(node.mode) ? node.id : 1;
      attr.ino = node.id;
      attr.mode = node.mode;
      attr.nlink = 1;
      attr.uid = 0;
      attr.gid = 0;
      attr.rdev = node.rdev;
      if (FS.isDir(node.mode)) {
        attr.size = 4096;
      } else if (FS.isFile(node.mode)) {
        attr.size = node.usedBytes;
      } else if (FS.isLink(node.mode)) {
        attr.size = node.link.length;
      } else {
        attr.size = 0;
      }
      attr.atime = new Date(node.atime);
      attr.mtime = new Date(node.mtime);
      attr.ctime = new Date(node.ctime);
      // NOTE: In our implementation, st_blocks = Math.ceil(st_size/st_blksize),
      //       but this is not required by the standard.
      attr.blksize = 4096;
      attr.blocks = Math.ceil(attr.size / attr.blksize);
      return attr;
    },
    setattr(node, attr) {
      for (const key of ['mode', 'atime', 'mtime', 'ctime']) {
        if (attr[key] != null) {
          node[key] = attr[key];
        }
      }
      if (attr.size !== undefined) {
        MEMFS.resizeFileStorage(node, attr.size);
      }
    },
    lookup(parent, name) {
      throw new FS.ErrnoError(44);
    },
    mknod(parent, name, mode, dev) {
      return MEMFS.createNode(parent, name, mode, dev);
    },
    rename(old_node, new_dir, new_name) {
      var new_node;
      try {
        new_node = FS.lookupNode(new_dir, new_name);
      } catch (e) {}
      if (new_node) {
        if (FS.isDir(old_node.mode)) {
          // if we're overwriting a directory at new_name, make sure it's empty.
          for (var i in new_node.contents) {
            throw new FS.ErrnoError(55);
          }
        }
        FS.hashRemoveNode(new_node);
      }
      // do the internal rewiring
      delete old_node.parent.contents[old_node.name];
      new_dir.contents[new_name] = old_node;
      old_node.name = new_name;
      new_dir.ctime =
        new_dir.mtime =
        old_node.parent.ctime =
        old_node.parent.mtime =
          Date.now();
    },
    unlink(parent, name) {
      delete parent.contents[name];
      parent.ctime = parent.mtime = Date.now();
    },
    rmdir(parent, name) {
      var node = FS.lookupNode(parent, name);
      for (var i in node.contents) {
        throw new FS.ErrnoError(55);
      }
      delete parent.contents[name];
      parent.ctime = parent.mtime = Date.now();
    },
    readdir(node) {
      return ['.', '..', ...Object.keys(node.contents)];
    },
    symlink(parent, newname, oldpath) {
      var node = MEMFS.createNode(parent, newname, 0o777 | 40960, 0);
      node.link = oldpath;
      return node;
    },
    readlink(node) {
      if (!FS.isLink(node.mode)) {
        throw new FS.ErrnoError(28);
      }
      return node.link;
    },
  },
  stream_ops: {
    read(stream, buffer, offset, length, position) {
      var contents = stream.node.contents;
      if (position >= stream.node.usedBytes) return 0;
      var size = Math.min(stream.node.usedBytes - position, length);
      assert(size >= 0);
      buffer.set(contents.subarray(position, position + size), offset);
      return size;
    },
    write(stream, buffer, offset, length, position, canOwn) {
      assert(buffer.subarray, 'FS.write expects a TypedArray');
      // If the buffer is located in main memory (HEAP), and if
      // memory can grow, we can't hold on to references of the
      // memory buffer, as they may get invalidated. That means we
      // need to copy its contents.
      if (buffer.buffer === HEAP8.buffer) {
        canOwn = false;
      }

      if (!length) return 0;
      var node = stream.node;
      node.mtime = node.ctime = Date.now();

      if (canOwn) {
        assert(
          position === 0,
          'canOwn must imply no weird position inside the file'
        );
        node.contents = buffer.subarray(offset, offset + length);
        node.usedBytes = length;
      } else if (node.usedBytes === 0 && position === 0) {
        // If this is a simple first write to an empty file, do a fast set since we don't need to care about old data.
        node.contents = buffer.slice(offset, offset + length);
        node.usedBytes = length;
      } else {
        MEMFS.expandFileStorage(node, position + length);
        // Use typed array write which is available.
        node.contents.set(buffer.subarray(offset, offset + length), position);
        node.usedBytes = Math.max(node.usedBytes, position + length);
      }
      return length;
    },
    llseek(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;
    },
    mmap(stream, length, position, prot, flags) {
      if (!FS.isFile(stream.node.mode)) {
        throw new FS.ErrnoError(43);
      }
      var ptr;
      var allocated;
      var contents = stream.node.contents;
      // Only make a new copy when MAP_PRIVATE is specified.
      if (!(flags & 2) && contents.buffer === HEAP8.buffer) {
        // We can't emulate MAP_SHARED when the file is not backed by the
        // buffer we're mapping to (e.g. the HEAP buffer).
        allocated = false;
        ptr = contents.byteOffset;
      } else {
        allocated = true;
        ptr = mmapAlloc(length);
        if (!ptr) {
          throw new FS.ErrnoError(48);
        }
        if (contents) {
          // Try to avoid unnecessary slices.
          if (position > 0 || position + length < contents.length) {
            if (contents.subarray) {
              contents = contents.subarray(position, position + length);
            } else {
              contents = Array.prototype.slice.call(
                contents,
                position,
                position + length
              );
            }
          }
          HEAP8.set(contents, ptr);
        }
      }
      return { ptr, allocated };
    },
    msync(stream, buffer, offset, length, mmapFlags) {
      MEMFS.stream_ops.write(stream, buffer, 0, length, offset, false);
      // should we check if bytesWritten and length are the same?
      return 0;
    },
  },
};

var FS_modeStringToFlags = (str) => {
  if (typeof str != 'string') return str;
  var flagModes = {
    r: 0,
    'r+': 2,
    w: 512 | 64 | 1,
    'w+': 512 | 64 | 2,
    a: 1024 | 64 | 1,
    'a+': 1024 | 64 | 2,
  };
  var flags = flagModes[str];
  if (typeof flags == 'undefined') {
    throw new Error(`Unknown file open mode: ${str}`);
  }
  return flags;
};

var FS_fileDataToTypedArray = (data) => {
  if (typeof data == 'string') {
    data = intArrayFromString(data, true);
  }
  if (!data.subarray) {
    data = new Uint8Array(data);
  }
  return data;
};

var FS_getMode = (canRead, canWrite) => {
  var mode = 0;
  if (canRead) mode |= 292 | 73;
  if (canWrite) mode |= 146;
  return mode;
};

var strError = (errno) => UTF8ToString(_strerror(errno));

var ERRNO_CODES = {
  EPERM: 63,
  ENOENT: 44,
  ESRCH: 71,
  EINTR: 27,
  EIO: 29,
  ENXIO: 60,
  E2BIG: 1,
  ENOEXEC: 45,
  EBADF: 8,
  ECHILD: 12,
  EAGAIN: 6,
  EWOULDBLOCK: 6,
  ENOMEM: 48,
  EACCES: 2,
  EFAULT: 21,
  ENOTBLK: 105,
  EBUSY: 10,
  EEXIST: 20,
  EXDEV: 75,
  ENODEV: 43,
  ENOTDIR: 54,
  EISDIR: 31,
  EINVAL: 28,
  ENFILE: 41,
  EMFILE: 33,
  ENOTTY: 59,
  ETXTBSY: 74,
  EFBIG: 22,
  ENOSPC: 51,
  ESPIPE: 70,
  EROFS: 69,
  EMLINK: 34,
  EPIPE: 64,
  EDOM: 18,
  ERANGE: 68,
  ENOMSG: 49,
  EIDRM: 24,
  ECHRNG: 106,
  EL2NSYNC: 156,
  EL3HLT: 107,
  EL3RST: 108,
  ELNRNG: 109,
  EUNATCH: 110,
  ENOCSI: 111,
  EL2HLT: 112,
  EDEADLK: 16,
  ENOLCK: 46,
  EBADE: 113,
  EBADR: 114,
  EXFULL: 115,
  ENOANO: 104,
  EBADRQC: 103,
  EBADSLT: 102,
  EDEADLOCK: 16,
  EBFONT: 101,
  ENOSTR: 100,
  ENODATA: 116,
  ETIME: 117,
  ENOSR: 118,
  ENONET: 119,
  ENOPKG: 120,
  EREMOTE: 121,
  ENOLINK: 47,
  EADV: 122,
  ESRMNT: 123,
  ECOMM: 124,
  EPROTO: 65,
  EMULTIHOP: 36,
  EDOTDOT: 125,
  EBADMSG: 9,
  ENOTUNIQ: 126,
  EBADFD: 127,
  EREMCHG: 128,
  ELIBACC: 129,
  ELIBBAD: 130,
  ELIBSCN: 131,
  ELIBMAX: 132,
  ELIBEXEC: 133,
  ENOSYS: 52,
  ENOTEMPTY: 55,
  ENAMETOOLONG: 37,
  ELOOP: 32,
  EOPNOTSUPP: 138,
  EPFNOSUPPORT: 139,
  ECONNRESET: 15,
  ENOBUFS: 42,
  EAFNOSUPPORT: 5,
  EPROTOTYPE: 67,
  ENOTSOCK: 57,
  ENOPROTOOPT: 50,
  ESHUTDOWN: 140,
  ECONNREFUSED: 14,
  EADDRINUSE: 3,
  ECONNABORTED: 13,
  ENETUNREACH: 40,
  ENETDOWN: 38,
  ETIMEDOUT: 73,
  EHOSTDOWN: 142,
  EHOSTUNREACH: 23,
  EINPROGRESS: 26,
  EALREADY: 7,
  EDESTADDRREQ: 17,
  EMSGSIZE: 35,
  EPROTONOSUPPORT: 66,
  ESOCKTNOSUPPORT: 137,
  EADDRNOTAVAIL: 4,
  ENETRESET: 39,
  EISCONN: 30,
  ENOTCONN: 53,
  ETOOMANYREFS: 141,
  EUSERS: 136,
  EDQUOT: 19,
  ESTALE: 72,
  ENOTSUP: 138,
  ENOMEDIUM: 148,
  EILSEQ: 25,
  EOVERFLOW: 61,
  ECANCELED: 11,
  ENOTRECOVERABLE: 56,
  EOWNERDEAD: 62,
  ESTRPIPE: 135,
};

var asyncLoad = async (url) => {
  var arrayBuffer = await readAsync(url);
  assert(arrayBuffer, `Loading data file "${url}" failed (no arrayBuffer).`);
  return new Uint8Array(arrayBuffer);
};

var FS_createDataFile = (...args) => FS.createDataFile(...args);

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

var preloadPlugins = [];
var FS_handledByPreloadPlugin = async (byteArray, fullname) => {
  // Ensure plugins are ready.
  if (typeof Browser != 'undefined') Browser.init();

  for (var plugin of preloadPlugins) {
    if (plugin['canHandle'](fullname)) {
      assert(
        plugin['handle'].constructor.name === 'AsyncFunction',
        'Filesystem plugin handlers must be async functions (See #24914)'
      );
      return plugin['handle'](byteArray, fullname);
    }
  }
  // If no plugin handled this file then return the original/unmodified
  // byteArray.
  return byteArray;
};
var FS_preloadFile = async (
  parent,
  name,
  url,
  canRead,
  canWrite,
  dontCreateFile,
  canOwn,
  preFinish
) => {
  // TODO we should allow people to just pass in a complete filename instead
  // of parent and name being that we just join them anyways
  var fullname = name ? PATH_FS.resolve(PATH.join2(parent, name)) : parent;
  var dep = getUniqueRunDependency(`cp ${fullname}`); // might have several active requests for the same fullname
  addRunDependency(dep);

  try {
    var byteArray = url;
    if (typeof url == 'string') {
      byteArray = await asyncLoad(url);
    }

    byteArray = await FS_handledByPreloadPlugin(byteArray, fullname);
    preFinish?.();
    if (!dontCreateFile) {
      FS_createDataFile(parent, name, byteArray, canRead, canWrite, canOwn);
    }
  } finally {
    removeRunDependency(dep);
  }
};
var FS_createPreloadedFile = (
  parent,
  name,
  url,
  canRead,
  canWrite,
  onload,
  onerror,
  dontCreateFile,
  canOwn,
  preFinish
) => {
  FS_preloadFile(
    parent,
    name,
    url,
    canRead,
    canWrite,
    dontCreateFile,
    canOwn,
    preFinish
  )
    .then(onload)
    .catch(onerror);
};
var FS = {
  root: null,
  mounts: [],
  devices: {},
  streams: [],
  nextInode: 1,
  nameTable: null,
  currentPath: '/',
  initialized: false,
  ignorePermissions: true,
  filesystems: null,
  syncFSRequests: 0,
  ErrnoError: class extends Error {
    name = 'ErrnoError';
    // We set the `name` property to be able to identify `FS.ErrnoError`
    // - the `name` is a standard ECMA-262 property of error objects. Kind of good to have it anyway.
    // - when using PROXYFS, an error can come from an underlying FS
    // as different FS objects have their own FS.ErrnoError each,
    // the test `err instanceof FS.ErrnoError` won't detect an error coming from another filesystem, causing bugs.
    // we'll use the reliable test `err.name == "ErrnoError"` instead
    constructor(errno) {
      super(runtimeInitialized ? strError(errno) : '');
      this.errno = errno;
      for (var key in ERRNO_CODES) {
        if (ERRNO_CODES[key] === errno) {
          this.code = key;
          break;
        }
      }
    }
  },
  FSStream: class {
    shared = {};
    get object() {
      return this.node;
    }
    set object(val) {
      this.node = val;
    }
    get isRead() {
      return (this.flags & 2097155) !== 1;
    }
    get isWrite() {
      return (this.flags & 2097155) !== 0;
    }
    get isAppend() {
      return this.flags & 1024;
    }
    get flags() {
      return this.shared.flags;
    }
    set flags(val) {
      this.shared.flags = val;
    }
    get position() {
      return this.shared.position;
    }
    set position(val) {
      this.shared.position = val;
    }
  },
  FSNode: class {
    node_ops = {};
    stream_ops = {};
    readMode = 292 | 73;
    writeMode = 146;
    mounted = null;
    constructor(parent, name, mode, rdev) {
      if (!parent) {
        parent = this; // root node sets parent to itself
      }
      this.parent = parent;
      this.mount = parent.mount;
      this.id = FS.nextInode++;
      this.name = name;
      this.mode = mode;
      this.rdev = rdev;
      this.atime = this.mtime = this.ctime = Date.now();
    }
    get read() {
      return (this.mode & this.readMode) === this.readMode;
    }
    set read(val) {
      val ? (this.mode |= this.readMode) : (this.mode &= ~this.readMode);
    }
    get write() {
      return (this.mode & this.writeMode) === this.writeMode;
    }
    set write(val) {
      val ? (this.mode |= this.writeMode) : (this.mode &= ~this.writeMode);
    }
    get isFolder() {
      return FS.isDir(this.mode);
    }
    get isDevice() {
      return FS.isChrdev(this.mode);
    }
  },
  lookupPath(path, opts = {}) {
    if (!path) {
      throw new FS.ErrnoError(44);
    }
    opts.follow_mount ??= true;

    if (!PATH.isAbs(path)) {
      path = FS.cwd() + '/' + path;
    }

    // limit max consecutive symlinks to 40 (SYMLOOP_MAX).
    linkloop: for (var nlinks = 0; nlinks < 40; nlinks++) {
      // split the absolute path
      var parts = path.split('/').filter((p) => !!p);

      // start at the root
      var current = FS.root;
      var current_path = '/';

      for (var i = 0; i < parts.length; i++) {
        var islast = i === parts.length - 1;
        if (islast && opts.parent) {
          // stop resolving
          break;
        }

        if (parts[i] === '.') {
          continue;
        }

        if (parts[i] === '..') {
          current_path = PATH.dirname(current_path);
          if (FS.isRoot(current)) {
            path = current_path + '/' + parts.slice(i + 1).join('/');
            // We're making progress here, don't let many consecutive ..'s
            // lead to ELOOP
            nlinks--;
            continue linkloop;
          } else {
            current = current.parent;
          }
          continue;
        }

        current_path = PATH.join2(current_path, parts[i]);
        try {
          current = FS.lookupNode(current, parts[i]);
        } catch (e) {
          // if noent_okay is true, suppress a ENOENT in the last component
          // and return an object with an undefined node. This is needed for
          // resolving symlinks in the path when creating a file.
          if (e?.errno === 44 && islast && opts.noent_okay) {
            return { path: current_path };
          }
          throw e;
        }

        // jump to the mount's root node if this is a mountpoint
        if (FS.isMountpoint(current) && (!islast || opts.follow_mount)) {
          current = current.mounted.root;
        }

        // by default, lookupPath will not follow a symlink if it is the final path component.
        // setting opts.follow = true will override this behavior.
        if (FS.isLink(current.mode) && (!islast || opts.follow)) {
          if (!current.node_ops.readlink) {
            throw new FS.ErrnoError(52);
          }
          var link = current.node_ops.readlink(current);
          if (!PATH.isAbs(link)) {
            link = PATH.dirname(current_path) + '/' + link;
          }
          path = link + '/' + parts.slice(i + 1).join('/');
          continue linkloop;
        }
      }
      return { path: current_path, node: current };
    }
    throw new FS.ErrnoError(32);
  },
  getPath(node) {
    var path;
    while (true) {
      if (FS.isRoot(node)) {
        var mount = node.mount.mountpoint;
        if (!path) return mount;
        return mount[mount.length - 1] !== '/'
          ? `${mount}/${path}`
          : mount + path;
      }
      path = path ? `${node.name}/${path}` : node.name;
      node = node.parent;
    }
  },
  hashName(parentid, name) {
    var hash = 0;

    for (var i = 0; i < name.length; i++) {
      hash = ((hash << 5) - hash + name.charCodeAt(i)) | 0;
    }
    return ((parentid + hash) >>> 0) % FS.nameTable.length;
  },
  hashAddNode(node) {
    var hash = FS.hashName(node.parent.id, node.name);
    node.name_next = FS.nameTable[hash];
    FS.nameTable[hash] = node;
  },
  hashRemoveNode(node) {
    var hash = FS.hashName(node.parent.id, node.name);
    if (FS.nameTable[hash] === node) {
      FS.nameTable[hash] = node.name_next;
    } else {
      var current = FS.nameTable[hash];
      while (current) {
        if (current.name_next === node) {
          current.name_next = node.name_next;
          break;
        }
        current = current.name_next;
      }
    }
  },
  lookupNode(parent, name) {
    var errCode = FS.mayLookup(parent);
    if (errCode) {
      throw new FS.ErrnoError(errCode);
    }
    var hash = FS.hashName(parent.id, name);
    for (var node = FS.nameTable[hash]; node; node = node.name_next) {
      var nodeName = node.name;
      if (node.parent.id === parent.id && nodeName === name) {
        return node;
      }
    }
    // if we failed to find it in the cache, call into the VFS
    return FS.lookup(parent, name);
  },
  createNode(parent, name, mode, rdev) {
    assert(typeof parent == 'object');
    var node = new FS.FSNode(parent, name, mode, rdev);

    FS.hashAddNode(node);

    return node;
  },
  destroyNode(node) {
    FS.hashRemoveNode(node);
  },
  isRoot(node) {
    return node === node.parent;
  },
  isMountpoint(node) {
    return !!node.mounted;
  },
  isFile(mode) {
    return (mode & 61440) === 32768;
  },
  isDir(mode) {
    return (mode & 61440) === 16384;
  },
  isLink(mode) {
    return (mode & 61440) === 40960;
  },
  isChrdev(mode) {
    return (mode & 61440) === 8192;
  },
  isBlkdev(mode) {
    return (mode & 61440) === 24576;
  },
  isFIFO(mode) {
    return (mode & 61440) === 4096;
  },
  isSocket(mode) {
    return (mode & 49152) === 49152;
  },
  flagsToPermissionString(flag) {
    var perms = ['r', 'w', 'rw'][flag & 3];
    if (flag & 512) {
      perms += 'w';
    }
    return perms;
  },
  nodePermissions(node, perms) {
    if (FS.ignorePermissions) {
      return 0;
    }
    // return 0 if any user, group or owner bits are set.
    if (perms.includes('r') && !(node.mode & 292)) {
      return 2;
    }
    if (perms.includes('w') && !(node.mode & 146)) {
      return 2;
    }
    if (perms.includes('x') && !(node.mode & 73)) {
      return 2;
    }
    return 0;
  },
  mayLookup(dir) {
    if (!FS.isDir(dir.mode)) return 54;
    var errCode = FS.nodePermissions(dir, 'x');
    if (errCode) return errCode;
    if (!dir.node_ops.lookup) return 2;
    return 0;
  },
  mayCreate(dir, name) {
    if (!FS.isDir(dir.mode)) {
      return 54;
    }
    try {
      var node = FS.lookupNode(dir, name);
      return 20;
    } catch (e) {}
    return FS.nodePermissions(dir, 'wx');
  },
  mayDelete(dir, name, isdir) {
    var node;
    try {
      node = FS.lookupNode(dir, name);
    } catch (e) {
      return e.errno;
    }
    var errCode = FS.nodePermissions(dir, 'wx');
    if (errCode) {
      return errCode;
    }
    if (isdir) {
      if (!FS.isDir(node.mode)) {
        return 54;
      }
      if (FS.isRoot(node) || FS.getPath(node) === FS.cwd()) {
        return 10;
      }
    } else if (FS.isDir(node.mode)) {
      return 31;
    }
    return 0;
  },
  mayOpen(node, flags) {
    if (!node) {
      return 44;
    }
    if (FS.isLink(node.mode)) {
      return 32;
    }
    var mode = FS.flagsToPermissionString(flags);
    if (FS.isDir(node.mode)) {
      // opening for write
      // TODO: check for O_SEARCH? (== search for dir only)
      if (mode !== 'r' || flags & (512 | 64)) {
        return 31;
      }
    }
    return FS.nodePermissions(node, mode);
  },
  checkOpExists(op, err) {
    if (!op) {
      throw new FS.ErrnoError(err);
    }
    return op;
  },
  MAX_OPEN_FDS: 4096,
  nextfd() {
    for (var fd = 0; fd <= FS.MAX_OPEN_FDS; fd++) {
      if (!FS.streams[fd]) {
        return fd;
      }
    }
    throw new FS.ErrnoError(33);
  },
  getStreamChecked(fd) {
    var stream = FS.getStream(fd);
    if (!stream) {
      throw new FS.ErrnoError(8);
    }
    return stream;
  },
  getStream: (fd) => FS.streams[fd],
  createStream(stream, fd = -1) {
    assert(fd >= -1);

    // clone it, so we can return an instance of FSStream
    stream = Object.assign(new FS.FSStream(), stream);
    if (fd == -1) {
      fd = FS.nextfd();
    }
    stream.fd = fd;
    FS.streams[fd] = stream;
    return stream;
  },
  closeStream(fd) {
    FS.streams[fd] = null;
  },
  dupStream(origStream, fd = -1) {
    var stream = FS.createStream(origStream, fd);
    stream.stream_ops?.dup?.(stream);
    return stream;
  },
  doSetAttr(stream, node, attr) {
    var setattr = stream?.stream_ops.setattr;
    var arg = setattr ? stream : node;
    setattr ??= node.node_ops.setattr;
    FS.checkOpExists(setattr, 63);
    setattr(arg, attr);
  },
  chrdev_stream_ops: {
    open(stream) {
      var device = FS.getDevice(stream.node.rdev);
      // override node's stream ops with the device's
      stream.stream_ops = device.stream_ops;
      // forward the open call
      stream.stream_ops.open?.(stream);
    },
    llseek() {
      throw new FS.ErrnoError(70);
    },
  },
  major: (dev) => dev >> 8,
  minor: (dev) => dev & 0xff,
  makedev: (ma, mi) => (ma << 8) | mi,
  registerDevice(dev, ops) {
    FS.devices[dev] = { stream_ops: ops };
  },
  getDevice: (dev) => FS.devices[dev],
  getMounts(mount) {
    var mounts = [];
    var check = [mount];

    while (check.length) {
      var m = check.pop();

      mounts.push(m);

      check.push(...m.mounts);
    }

    return mounts;
  },
  syncfs(populate, callback) {
    if (typeof populate == 'function') {
      callback = populate;
      populate = false;
    }

    FS.syncFSRequests++;

    if (FS.syncFSRequests > 1) {
      err(
        `warning: ${FS.syncFSRequests} FS.syncfs operations in flight at once, probably just doing extra work`
      );
    }

    var mounts = FS.getMounts(FS.root.mount);
    var completed = 0;

    function doCallback(errCode) {
      assert(FS.syncFSRequests > 0);
      FS.syncFSRequests--;
      return callback(errCode);
    }

    function done(errCode) {
      if (errCode) {
        if (!done.errored) {
          done.errored = true;
          return doCallback(errCode);
        }
        return;
      }
      if (++completed >= mounts.length) {
        doCallback(null);
      }
    }

    // sync all mounts
    for (var mount of mounts) {
      if (mount.type.syncfs) {
        mount.type.syncfs(mount, populate, done);
      } else {
        done(null);
      }
    }
  },
  mount(type, opts, mountpoint) {
    if (typeof type == 'string') {
      // The filesystem was not included, and instead we have an error
      // message stored in the variable.
      throw type;
    }
    var root = mountpoint === '/';
    var pseudo = !mountpoint;
    var node;

    if (root && FS.root) {
      throw new FS.ErrnoError(10);
    } else if (!root && !pseudo) {
      var lookup = FS.lookupPath(mountpoint, { follow_mount: false });

      mountpoint = lookup.path; // use the absolute path
      node = lookup.node;

      if (FS.isMountpoint(node)) {
        throw new FS.ErrnoError(10);
      }

      if (!FS.isDir(node.mode)) {
        throw new FS.ErrnoError(54);
      }
    }

    var mount = {
      type,
      opts,
      mountpoint,
      mounts: [],
    };

    // create a root node for the fs
    var mountRoot = type.mount(mount);
    mountRoot.mount = mount;
    mount.root = mountRoot;

    if (root) {
      FS.root = mountRoot;
    } else if (node) {
      // set as a mountpoint
      node.mounted = mount;

      // add the new mount to the current mount's children
      if (node.mount) {
        node.mount.mounts.push(mount);
      }
    }

    return mountRoot;
  },
  unmount(mountpoint) {
    var lookup = FS.lookupPath(mountpoint, { follow_mount: false });

    if (!FS.isMountpoint(lookup.node)) {
      throw new FS.ErrnoError(28);
    }

    // destroy the nodes for this mount, and all its child mounts
    var node = lookup.node;
    var mount = node.mounted;
    var mounts = FS.getMounts(mount);

    for (var [hash, current] of Object.entries(FS.nameTable)) {
      while (current) {
        var next = current.name_next;

        if (mounts.includes(current.mount)) {
          FS.destroyNode(current);
        }

        current = next;
      }
    }

    // no longer a mountpoint
    node.mounted = null;

    // remove this mount from the child mounts
    var idx = node.mount.mounts.indexOf(mount);
    assert(idx !== -1);
    node.mount.mounts.splice(idx, 1);
  },
  lookup(parent, name) {
    return parent.node_ops.lookup(parent, name);
  },
  mknod(path, mode, dev) {
    var lookup = FS.lookupPath(path, { parent: true });
    var parent = lookup.node;
    var name = PATH.basename(path);
    if (!name) {
      throw new FS.ErrnoError(28);
    }
    if (name === '.' || name === '..') {
      throw new FS.ErrnoError(20);
    }
    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);
  },
  statfs(path) {
    return FS.statfsNode(FS.lookupPath(path, { follow: true }).node);
  },
  statfsStream(stream) {
    // We keep a separate statfsStream function because noderawfs overrides
    // it. In noderawfs, stream.node is sometimes null. Instead, we need to
    // look at stream.path.
    return FS.statfsNode(stream.node);
  },
  statfsNode(node) {
    // NOTE: None of the defaults here are true. We're just returning safe and
    //       sane values. Currently nodefs and rawfs replace these defaults,
    //       other file systems leave them alone.
    var rtn = {
      bsize: 4096,
      frsize: 4096,
      blocks: 1e6,
      bfree: 5e5,
      bavail: 5e5,
      files: FS.nextInode,
      ffree: FS.nextInode - 1,
      fsid: 42,
      flags: 2,
      namelen: 255,
    };

    if (node.node_ops.statfs) {
      Object.assign(rtn, node.node_ops.statfs(node.mount.opts.root));
    }
    return rtn;
  },
  create(path, mode = 0o666) {
    mode &= 4095;
    mode |= 32768;
    return FS.mknod(path, mode, 0);
  },
  mkdir(path, mode = 0o777) {
    mode &= 511 | 512;
    mode |= 16384;
    return FS.mknod(path, mode, 0);
  },
  mkdirTree(path, mode) {
    var dirs = path.split('/');
    var d = '';
    for (var dir of dirs) {
      if (!dir) continue;
      if (d || PATH.isAbs(path)) d += '/';
      d += dir;
      try {
        FS.mkdir(d, mode);
      } catch (e) {
        if (e.errno != 20) throw e;
      }
    }
  },
  mkdev(path, mode, dev) {
    if (typeof dev == 'undefined') {
      dev = mode;
      mode = 0o666;
    }
    mode |= 8192;
    return FS.mknod(path, mode, dev);
  },
  symlink(oldpath, newpath) {
    if (!PATH_FS.resolve(oldpath)) {
      throw new FS.ErrnoError(44);
    }
    var lookup = FS.lookupPath(newpath, { parent: true });
    var parent = lookup.node;
    if (!parent) {
      throw new FS.ErrnoError(44);
    }
    var newname = PATH.basename(newpath);
    var errCode = FS.mayCreate(parent, newname);
    if (errCode) {
      throw new FS.ErrnoError(errCode);
    }
    if (!parent.node_ops.symlink) {
      throw new FS.ErrnoError(63);
    }
    return parent.node_ops.symlink(parent, newname, oldpath);
  },
  rename(old_path, new_path) {
    var old_dirname = PATH.dirname(old_path);
    var new_dirname = PATH.dirname(new_path);
    var old_name = PATH.basename(old_path);
    var new_name = PATH.basename(new_path);
    // parents must exist
    var lookup, old_dir, new_dir;

    // let the errors from non existent directories percolate up
    lookup = FS.lookupPath(old_path, { parent: true });
    old_dir = lookup.node;
    lookup = FS.lookupPath(new_path, { parent: true });
    new_dir = lookup.node;

    if (!old_dir || !new_dir) throw new FS.ErrnoError(44);
    // need to be part of the same mount
    if (old_dir.mount !== new_dir.mount) {
      throw new FS.ErrnoError(75);
    }
    // source must exist
    var old_node = FS.lookupNode(old_dir, old_name);
    // old path should not be an ancestor of the new path
    var relative = PATH_FS.relative(old_path, new_dirname);
    if (relative.charAt(0) !== '.') {
      throw new FS.ErrnoError(28);
    }
    // new path should not be an ancestor of the old path
    relative = PATH_FS.relative(new_path, old_dirname);
    if (relative.charAt(0) !== '.') {
      throw new FS.ErrnoError(55);
    }
    // see if the new path already exists
    var new_node;
    try {
      new_node = FS.lookupNode(new_dir, new_name);
    } catch (e) {
      // not fatal
    }
    // early out if nothing needs to change
    if (old_node === new_node) {
      return;
    }
    // we'll need to delete the old entry
    var isdir = FS.isDir(old_node.mode);
    var errCode = FS.mayDelete(old_dir, old_name, isdir);
    if (errCode) {
      throw new FS.ErrnoError(errCode);
    }
    // need delete permissions if we'll be overwriting.
    // need create permissions if new doesn't already exist.
    errCode = new_node
      ? FS.mayDelete(new_dir, new_name, isdir)
      : FS.mayCreate(new_dir, new_name);
    if (errCode) {
      throw new FS.ErrnoError(errCode);
    }
    if (!old_dir.node_ops.rename) {
      throw new FS.ErrnoError(63);
    }
    if (FS.isMountpoint(old_node) || (new_node && FS.isMountpoint(new_node))) {
      throw new FS.ErrnoError(10);
    }
    // if we are going to change the parent, check write permissions
    if (new_dir !== old_dir) {
      errCode = FS.nodePermissions(old_dir, 'w');
      if (errCode) {
        throw new FS.ErrnoError(errCode);
      }
    }
    // remove the node from the lookup hash
    FS.hashRemoveNode(old_node);
    // do the underlying fs rename
    try {
      old_dir.node_ops.rename(old_node, new_dir, new_name);
      // update old node (we do this here to avoid each backend
      // needing to)
      old_node.parent = new_dir;
    } catch (e) {
      throw e;
    } finally {
      // add the node back to the hash (in case node_ops.rename
      // changed its name)
      FS.hashAddNode(old_node);
    }
  },
  rmdir(path) {
    var lookup = FS.lookupPath(path, { parent: true });
    var parent = lookup.node;
    var name = PATH.basename(path);
    var node = FS.lookupNode(parent, name);
    var errCode = FS.mayDelete(parent, name, true);
    if (errCode) {
      throw new FS.ErrnoError(errCode);
    }
    if (!parent.node_ops.rmdir) {
      throw new FS.ErrnoError(63);
    }
    if (FS.isMountpoint(node)) {
      throw new FS.ErrnoError(10);
    }
    parent.node_ops.rmdir(parent, name);
    FS.destroyNode(node);
  },
  readdir(path) {
    var lookup = FS.lookupPath(path, { follow: true });
    var node = lookup.node;
    var readdir = FS.checkOpExists(node.node_ops.readdir, 54);
    return readdir(node);
  },
  unlink(path) {
    var lookup = FS.lookupPath(path, { parent: true });
    var parent = lookup.node;
    if (!parent) {
      throw new FS.ErrnoError(44);
    }
    var name = PATH.basename(path);
    var node = FS.lookupNode(parent, name);
    var errCode = FS.mayDelete(parent, name, false);
    if (errCode) {
      // According to POSIX, we should map EISDIR to EPERM, but
      // we instead do what Linux does (and we must, as we use
      // the musl linux libc).
      throw new FS.ErrnoError(errCode);
    }
    if (!parent.node_ops.unlink) {
      throw new FS.ErrnoError(63);
    }
    if (FS.isMountpoint(node)) {
      throw new FS.ErrnoError(10);
    }
    parent.node_ops.unlink(parent, name);
    FS.destroyNode(node);
  },
  readlink(path) {
    var lookup = FS.lookupPath(path);
    var link = lookup.node;
    if (!link) {
      throw new FS.ErrnoError(44);
    }
    if (!link.node_ops.readlink) {
      throw new FS.ErrnoError(28);
    }
    return link.node_ops.readlink(link);
  },
  stat(path, dontFollow) {
    var lookup = FS.lookupPath(path, { follow: !dontFollow });
    var node = lookup.node;
    var getattr = FS.checkOpExists(node.node_ops.getattr, 63);
    return getattr(node);
  },
  fstat(fd) {
    var stream = FS.getStreamChecked(fd);
    var node = stream.node;
    var getattr = stream.stream_ops.getattr;
    var arg = getattr ? stream : node;
    getattr ??= node.node_ops.getattr;
    FS.checkOpExists(getattr, 63);
    return getattr(arg);
  },
  lstat(path) {
    return FS.stat(path, true);
  },
  doChmod(stream, node, mode, dontFollow) {
    FS.doSetAttr(stream, node, {
      mode: (mode & 4095) | (node.mode & ~4095),
      ctime: Date.now(),
      dontFollow,
    });
  },
  chmod(path, mode, dontFollow) {
    var node;
    if (typeof path == 'string') {
      var lookup = FS.lookupPath(path, { follow: !dontFollow });
      node = lookup.node;
    } else {
      node = path;
    }
    FS.doChmod(null, node, mode, dontFollow);
  },
  lchmod(path, mode) {
    FS.chmod(path, mode, true);
  },
  fchmod(fd, mode) {
    var stream = FS.getStreamChecked(fd);
    FS.doChmod(stream, stream.node, mode, false);
  },
  doChown(stream, node, dontFollow) {
    FS.doSetAttr(stream, node, {
      timestamp: Date.now(),
      dontFollow,
      // we ignore the uid / gid for now
    });
  },
  chown(path, uid, gid, dontFollow) {
    var node;
    if (typeof path == 'string') {
      var lookup = FS.lookupPath(path, { follow: !dontFollow });
      node = lookup.node;
    } else {
      node = path;
    }
    FS.doChown(null, node, dontFollow);
  },
  lchown(path, uid, gid) {
    FS.chown(path, uid, gid, true);
  },
  fchown(fd, uid, gid) {
    var stream = FS.getStreamChecked(fd);
    FS.doChown(stream, stream.node, false);
  },
  doTruncate(stream, node, len) {
    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);
    }
    FS.doSetAttr(stream, node, {
      size: len,
      timestamp: Date.now(),
    });
  },
  truncate(path, len) {
    if (len < 0) {
      throw new FS.ErrnoError(28);
    }
    var node;
    if (typeof path == 'string') {
      var lookup = FS.lookupPath(path, { follow: true });
      node = lookup.node;
    } else {
      node = path;
    }
    FS.doTruncate(null, node, len);
  },
  ftruncate(fd, len) {
    var stream = FS.getStreamChecked(fd);
    if (len < 0 || (stream.flags & 2097155) === 0) {
      throw new FS.ErrnoError(28);
    }
    FS.doTruncate(stream, stream.node, len);
  },
  utime(path, atime, mtime) {
    var lookup = FS.lookupPath(path, { follow: true });
    var node = lookup.node;
    var setattr = FS.checkOpExists(node.node_ops.setattr, 63);
    setattr(node, {
      atime: atime,
      mtime: mtime,
    });
  },
  open(path, flags, mode = 0o666) {
    if (path === '') {
      throw new FS.ErrnoError(44);
    }
    flags = FS_modeStringToFlags(flags);
    if (flags & 64) {
      mode = (mode & 4095) | 32768;
    } else {
      mode = 0;
    }
    var node;
    var isDirPath;
    if (typeof path == 'object') {
      node = path;
    } else {
      isDirPath = path.endsWith('/');
      // noent_okay makes it so that if the final component of the path
      // doesn't exist, lookupPath returns `node: undefined`. `path` will be
      // updated to point to the target of all symlinks.
      var lookup = FS.lookupPath(path, {
        follow: !(flags & 131072),
        noent_okay: true,
      });
      node = lookup.node;
      path = lookup.path;
    }
    // perhaps we need to create the node
    var created = false;
    if (flags & 64) {
      if (node) {
        // if O_CREAT and O_EXCL are set, error out if the node already exists
        if (flags & 128) {
          throw new FS.ErrnoError(20);
        }
      } else if (isDirPath) {
        throw new FS.ErrnoError(31);
      } else {
        // node doesn't exist, try to create it
        // Ignore the permission bits here to ensure we can `open` this new
        // file below. We use chmod below to apply the permissions once the
        // file is open.
        node = FS.mknod(path, mode | 0o777, 0);
        created = true;
      }
    }
    if (!node) {
      throw new FS.ErrnoError(44);
    }
    // can't truncate a device
    if (FS.isChrdev(node.mode)) {
      flags &= ~512;
    }
    // if asked only for a directory, then this must be one
    if (flags & 65536 && !FS.isDir(node.mode)) {
      throw new FS.ErrnoError(54);
    }
    // check permissions, if this is not a file we just created now (it is ok to
    // create and write to a file with read-only permissions; it is read-only
    // for later use)
    if (!created) {
      var errCode = FS.mayOpen(node, flags);
      if (errCode) {
        throw new FS.ErrnoError(errCode);
      }
    }
    // do truncation if necessary
    if (flags & 512 && !created) {
      FS.truncate(node, 0);
    }
    // we've already handled these, don't pass down to the underlying vfs
    flags &= ~(128 | 512 | 131072);

    // register the stream with the filesystem
    var stream = FS.createStream({
      node,
      path: FS.getPath(node), // we want the absolute path to the node
      flags,
      seekable: true,
      position: 0,
      stream_ops: node.stream_ops,
      // used by the file family libc calls (fopen, fwrite, ferror, etc.)
      ungotten: [],
      error: false,
    });
    // call the new stream's open function
    if (stream.stream_ops.open) {
      stream.stream_ops.open(stream);
    }
    if (created) {
      FS.chmod(node, mode & 0o777);
    }
    return stream;
  },
  close(stream) {
    if (FS.isClosed(stream)) {
      throw new FS.ErrnoError(8);
    }
    if (stream.getdents) stream.getdents = null; // free readdir state
    try {
      if (stream.stream_ops.close) {
        stream.stream_ops.close(stream);
      }
    } catch (e) {
      throw e;
    } finally {
      FS.closeStream(stream.fd);
    }
    stream.fd = null;
  },
  isClosed(stream) {
    return stream.fd === null;
  },
  llseek(stream, offset, whence) {
    if (FS.isClosed(stream)) {
      throw new FS.ErrnoError(8);
    }
    if (!stream.seekable || !stream.stream_ops.llseek) {
      throw new FS.ErrnoError(70);
    }
    if (whence != 0 && whence != 1 && whence != 2) {
      throw new FS.ErrnoError(28);
    }
    stream.position = stream.stream_ops.llseek(stream, offset, whence);
    stream.ungotten = [];
    return stream.position;
  },
  read(stream, buffer, offset, length, position) {
    assert(offset >= 0);
    if (length < 0 || position < 0) {
      throw new FS.ErrnoError(28);
    }
    if (FS.isClosed(stream)) {
      throw new FS.ErrnoError(8);
    }
    if ((stream.flags & 2097155) === 1) {
      throw new FS.ErrnoError(8);
    }
    if (FS.isDir(stream.node.mode)) {
      throw new FS.ErrnoError(31);
    }
    if (!stream.stream_ops.read) {
      throw new FS.ErrnoError(28);
    }
    var seeking = typeof position != 'undefined';
    if (!seeking) {
      position = stream.position;
    } else if (!stream.seekable) {
      throw new FS.ErrnoError(70);
    }
    var bytesRead = stream.stream_ops.read(
      stream,
      buffer,
      offset,
      length,
      position
    );
    if (!seeking) stream.position += bytesRead;
    return bytesRead;
  },
  write(stream, buffer, offset, length, position, canOwn) {
    assert(offset >= 0);
    assert(buffer.subarray, 'FS.write expects a TypedArray');
    if (length < 0 || position < 0) {
      throw new FS.ErrnoError(28);
    }
    if (FS.isClosed(stream)) {
      throw new FS.ErrnoError(8);
    }
    if ((stream.flags & 2097155) === 0) {
      throw new FS.ErrnoError(8);
    }
    if (FS.isDir(stream.node.mode)) {
      throw new FS.ErrnoError(31);
    }
    if (!stream.stream_ops.write) {
      throw new FS.ErrnoError(28);
    }
    if (stream.seekable && stream.flags & 1024) {
      // seek to the end before writing in append mode
      FS.llseek(stream, 0, 2);
    }
    var seeking = typeof position != 'undefined';
    if (!seeking) {
      position = stream.position;
    } else if (!stream.seekable) {
      throw new FS.ErrnoError(70);
    }
    var bytesWritten = stream.stream_ops.write(
      stream,
      buffer,
      offset,
      length,
      position,
      canOwn
    );
    if (!seeking) stream.position += bytesWritten;
    return bytesWritten;
  },
  mmap(stream, length, position, prot, flags) {
    // User requests writing to file (prot & PROT_WRITE != 0).
    // Checking if we have permissions to write to the file unless
    // MAP_PRIVATE flag is set. According to POSIX spec it is possible
    // to write to file opened in read-only mode with MAP_PRIVATE flag,
    // as all modifications will be visible only in the memory of
    // the current process.
    if (
      (prot & 2) !== 0 &&
      (flags & 2) === 0 &&
      (stream.flags & 2097155) !== 2
    ) {
      throw new FS.ErrnoError(2);
    }
    if ((stream.flags & 2097155) === 1) {
      throw new FS.ErrnoError(2);
    }
    if (!stream.stream_ops.mmap) {
      throw new FS.ErrnoError(43);
    }
    if (!length) {
      throw new FS.ErrnoError(28);
    }
    return stream.stream_ops.mmap(stream, length, position, prot, flags);
  },
  msync(stream, buffer, offset, length, mmapFlags) {
    assert(offset >= 0);
    if (!stream.stream_ops.msync) {
      return 0;
    }
    return stream.stream_ops.msync(stream, buffer, offset, length, mmapFlags);
  },
  ioctl(stream, cmd, arg) {
    if (!stream.stream_ops.ioctl) {
      throw new FS.ErrnoError(59);
    }
    return stream.stream_ops.ioctl(stream, cmd, arg);
  },
  readFile(path, opts = {}) {
    opts.flags = opts.flags || 0;
    opts.encoding = opts.encoding || 'binary';
    if (opts.encoding !== 'utf8' && opts.encoding !== 'binary') {
      abort(`Invalid encoding type "${opts.encoding}"`);
    }
    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') {
      buf = UTF8ArrayToString(buf);
    }
    FS.close(stream);
    return buf;
  },
  writeFile(path, data, opts = {}) {
    opts.flags = opts.flags || 577;
    var stream = FS.open(path, opts.flags, opts.mode);
    data = FS_fileDataToTypedArray(data);
    FS.write(stream, data, 0, data.byteLength, undefined, opts.canOwn);
    FS.close(stream);
  },
  cwd: () => FS.currentPath,
  chdir(path) {
    var lookup = FS.lookupPath(path, { follow: true });
    if (lookup.node === null) {
      throw new FS.ErrnoError(44);
    }
    if (!FS.isDir(lookup.node.mode)) {
      throw new FS.ErrnoError(54);
    }
    var errCode = FS.nodePermissions(lookup.node, 'x');
    if (errCode) {
      throw new FS.ErrnoError(errCode);
    }
    FS.currentPath = lookup.path;
  },
  createDefaultDirectories() {
    FS.mkdir('/tmp');
    FS.mkdir('/home');
    FS.mkdir('/home/web_user');
  },
  createDefaultDevices() {
    // create /dev
    FS.mkdir('/dev');
    // setup /dev/null
    FS.registerDevice(FS.makedev(1, 3), {
      read: () => 0,
      write: (stream, buffer, offset, length, pos) => length,
      llseek: () => 0,
    });
    FS.mkdev('/dev/null', FS.makedev(1, 3));
    // setup /dev/tty and /dev/tty1
    // stderr needs to print output using err() rather than out()
    // so we register a second tty just for it.
    TTY.register(FS.makedev(5, 0), TTY.default_tty_ops);
    TTY.register(FS.makedev(6, 0), TTY.default_tty1_ops);
    FS.mkdev('/dev/tty', FS.makedev(5, 0));
    FS.mkdev('/dev/tty1', FS.makedev(6, 0));
    // setup /dev/[u]random
    // use a buffer to avoid overhead of individual crypto calls per byte
    var randomBuffer = new Uint8Array(1024),
      randomLeft = 0;
    var randomByte = () => {
      if (randomLeft === 0) {
        randomFill(randomBuffer);
        randomLeft = randomBuffer.byteLength;
      }
      return randomBuffer[--randomLeft];
    };
    FS.createDevice('/dev', 'random', randomByte);
    FS.createDevice('/dev', 'urandom', randomByte);
    // we're not going to emulate the actual shm device,
    // just create the tmp dirs that reside in it commonly
    FS.mkdir('/dev/shm');
    FS.mkdir('/dev/shm/tmp');
  },
  createSpecialDirectories() {
    // create /proc/self/fd which allows /proc/self/fd/6 => readlink gives the
    // name of the stream for fd 6 (see test_unistd_ttyname)
    FS.mkdir('/proc');
    var proc_self = FS.mkdir('/proc/self');
    FS.mkdir('/proc/self/fd');
    FS.mount(
      {
        mount() {
          var node = FS.createNode(proc_self, 'fd', 16895, 73);
          node.stream_ops = {
            llseek: MEMFS.stream_ops.llseek,
          };
          node.node_ops = {
            lookup(parent, name) {
              var fd = +name;
              var stream = FS.getStreamChecked(fd);
              var ret = {
                parent: null,
                mount: { mountpoint: 'fake' },
                node_ops: { readlink: () => stream.path },
                id: fd + 1,
              };
              ret.parent = ret; // make it look like a simple root node
              return ret;
            },
            readdir() {
              return Array.from(FS.streams.entries())
                .filter(([k, v]) => v)
                .map(([k, v]) => k.toString());
            },
          };
          return node;
        },
      },
      {},
      '/proc/self/fd'
    );
  },
  createStandardStreams(input, output, error) {
    // TODO deprecate the old functionality of a single
    // input / output callback and that utilizes FS.createDevice
    // and instead require a unique set of stream ops

    // by default, we symlink the standard streams to the
    // default tty devices. however, if the standard streams
    // have been overwritten we create a unique device for
    // them instead.
    if (input) {
      FS.createDevice('/dev', 'stdin', input);
    } else {
      FS.symlink('/dev/tty', '/dev/stdin');
    }
    if (output) {
      FS.createDevice('/dev', 'stdout', null, output);
    } else {
      FS.symlink('/dev/tty', '/dev/stdout');
    }
    if (error) {
      FS.createDevice('/dev', 'stderr', null, error);
    } else {
      FS.symlink('/dev/tty1', '/dev/stderr');
    }

    // open default streams for the stdin, stdout and stderr devices
    var stdin = FS.open('/dev/stdin', 0);
    var stdout = FS.open('/dev/stdout', 1);
    var stderr = FS.open('/dev/stderr', 1);
    assert(stdin.fd === 0, `invalid handle for stdin (${stdin.fd})`);
    assert(stdout.fd === 1, `invalid handle for stdout (${stdout.fd})`);
    assert(stderr.fd === 2, `invalid handle for stderr (${stderr.fd})`);
  },
  staticInit() {
    FS.nameTable = new Array(4096);

    FS.mount(MEMFS, {}, '/');

    FS.createDefaultDirectories();
    FS.createDefaultDevices();
    FS.createSpecialDirectories();

    FS.filesystems = {
      MEMFS: MEMFS,
    };
  },
  init(input, output, error) {
    assert(
      !FS.initialized,
      'FS.init was previously called. If you want to initialize later with custom parameters, remove any earlier calls (note that one is automatically added to the generated code)'
    );
    FS.initialized = true;

    // Allow Module.stdin etc. to provide defaults, if none explicitly passed to us here
    input ??= Module['stdin'];
    output ??= Module['stdout'];
    error ??= Module['stderr'];

    FS.createStandardStreams(input, output, error);
  },
  quit() {
    FS.initialized = false;
    // force-flush all streams, so we get musl std streams printed out
    _fflush(0);
    // close all of our streams
    for (var stream of FS.streams) {
      if (stream) {
        FS.close(stream);
      }
    }
  },
  findObject(path, dontResolveLastLink) {
    var ret = FS.analyzePath(path, dontResolveLastLink);
    if (!ret.exists) {
      return null;
    }
    return ret.object;
  },
  analyzePath(path, dontResolveLastLink) {
    // operate from within the context of the symlink's target
    try {
      var lookup = FS.lookupPath(path, { follow: !dontResolveLastLink });
      path = lookup.path;
    } catch (e) {}
    var ret = {
      isRoot: false,
      exists: false,
      error: 0,
      name: null,
      path: null,
      object: null,
      parentExists: false,
      parentPath: null,
      parentObject: null,
    };
    try {
      var lookup = FS.lookupPath(path, { parent: true });
      ret.parentExists = true;
      ret.parentPath = lookup.path;
      ret.parentObject = lookup.node;
      ret.name = PATH.basename(path);
      lookup = FS.lookupPath(path, { follow: !dontResolveLastLink });
      ret.exists = true;
      ret.path = lookup.path;
      ret.object = lookup.node;
      ret.name = lookup.node.name;
      ret.isRoot = lookup.path === '/';
    } catch (e) {
      ret.error = e.errno;
    }
    return ret;
  },
  createPath(parent, path, canRead, canWrite) {
    parent = typeof parent == 'string' ? parent : FS.getPath(parent);
    var parts = path.split('/').reverse();
    while (parts.length) {
      var part = parts.pop();
      if (!part) continue;
      var current = PATH.join2(parent, part);
      try {
        FS.mkdir(current);
      } catch (e) {
        if (e.errno != 20) throw e;
      }
      parent = current;
    }
    return current;
  },
  createFile(parent, name, properties, canRead, canWrite) {
    var path = PATH.join2(
      typeof parent == 'string' ? parent : FS.getPath(parent),
      name
    );
    var mode = FS_getMode(canRead, canWrite);
    return FS.create(path, mode);
  },
  createDataFile(parent, name, data, canRead, canWrite, canOwn) {
    var path = name;
    if (parent) {
      parent = typeof parent == 'string' ? parent : FS.getPath(parent);
      path = name ? PATH.join2(parent, name) : parent;
    }
    var mode = FS_getMode(canRead, canWrite);
    var node = FS.create(path, mode);
    if (data) {
      data = FS_fileDataToTypedArray(data);
      // make sure we can write to the file
      FS.chmod(node, mode | 146);
      var stream = FS.open(node, 577);
      FS.write(stream, data, 0, data.length, 0, canOwn);
      FS.close(stream);
      FS.chmod(node, mode);
    }
  },
  createDevice(parent, name, input, output) {
    var path = PATH.join2(
      typeof parent == 'string' ? parent : FS.getPath(parent),
      name
    );
    var mode = FS_getMode(!!input, !!output);
    FS.createDevice.major ??= 64;
    var dev = FS.makedev(FS.createDevice.major++, 0);
    // Create a fake device that a set of stream ops to emulate
    // the old behavior.
    FS.registerDevice(dev, {
      open(stream) {
        stream.seekable = false;
      },
      close(stream) {
        // flush any pending line data
        if (output?.buffer?.length) {
          output(10);
        }
      },
      read(stream, buffer, offset, length, pos /* ignored */) {
        var bytesRead = 0;
        for (var i = 0; i < length; i++) {
          var result;
          try {
            result = input();
          } catch (e) {
            throw new FS.ErrnoError(29);
          }
          if (result === undefined && bytesRead === 0) {
            throw new FS.ErrnoError(6);
          }
          if (result === null || result === undefined) break;
          bytesRead++;
          buffer[offset + i] = result;
        }
        if (bytesRead) {
          stream.node.atime = Date.now();
        }
        return bytesRead;
      },
      write(stream, buffer, offset, length, pos) {
        for (var i = 0; i < length; i++) {
          try {
            output(buffer[offset + i]);
          } catch (e) {
            throw new FS.ErrnoError(29);
          }
        }
        if (length) {
          stream.node.mtime = stream.node.ctime = Date.now();
        }
        return i;
      },
    });
    return FS.mkdev(path, mode, dev);
  },
  forceLoadFile(obj) {
    if (obj.isDevice || obj.isFolder || obj.link || obj.contents) return true;
    if (globalThis.XMLHttpRequest) {
      abort(
        '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 {
      // Command-line.
      try {
        obj.contents = readBinary(obj.url);
      } catch (e) {
        throw new FS.ErrnoError(29);
      }
    }
  },
  createLazyFile(parent, name, url, canRead, canWrite) {
    // Lazy chunked Uint8Array (implements get and length from Uint8Array).
    // Actual getting is abstracted away for eventual reuse.
    class LazyUint8Array {
      lengthKnown = false;
      chunks = []; // Loaded chunks. Index is the chunk number
      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];
      }
      setDataGetter(getter) {
        this.getter = getter;
      }
      cacheLength() {
        // Find length
        var xhr = new XMLHttpRequest();
        xhr.open('HEAD', url, false);
        xhr.send(null);
        if (!((xhr.status >= 200 && xhr.status < 300) || xhr.status === 304))
          abort("Couldn't load " + url + '. Status: ' + xhr.status);
        var datalength = Number(xhr.getResponseHeader('Content-length'));
        var header;
        var hasByteServing =
          (header = xhr.getResponseHeader('Accept-Ranges')) &&
          header === 'bytes';
        var usesGzip =
          (header = xhr.getResponseHeader('Content-Encoding')) &&
          header === 'gzip';

        var chunkSize = 1024 * 1024; // Chunk size in bytes

        if (!hasByteServing) chunkSize = datalength;

        // Function to get a range from the remote URL.
        var doXHR = (from, to) => {
          if (from > to)
            abort(
              'invalid range (' + from + ', ' + to + ') or no bytes requested!'
            );
          if (to > datalength - 1)
            abort('only ' + datalength + ' bytes available! programmer error!');

          // TODO: Use mozResponseArrayBuffer, responseStream, etc. if available.
          var xhr = new XMLHttpRequest();
          xhr.open('GET', url, false);
          if (datalength !== chunkSize)
            xhr.setRequestHeader('Range', 'bytes=' + from + '-' + to);

          // Some hints to the browser that we want binary data.
          xhr.responseType = 'arraybuffer';
          if (xhr.overrideMimeType) {
            xhr.overrideMimeType('text/plain; charset=x-user-defined');
          }

          xhr.send(null);
          if (!((xhr.status >= 200 && xhr.status < 300) || xhr.status === 304))
            abort("Couldn't load " + url + '. Status: ' + xhr.status);
          if (xhr.response !== undefined) {
            return new Uint8Array(
              /** @type{Array<number>} */ (xhr.response || [])
            );
          }
          return intArrayFromString(xhr.responseText || '', true);
        };
        var lazyArray = this;
        lazyArray.setDataGetter((chunkNum) => {
          var start = chunkNum * chunkSize;
          var end = (chunkNum + 1) * chunkSize - 1; // including this byte
          end = Math.min(end, datalength - 1); // if datalength-1 is selected, this is the last block
          if (typeof lazyArray.chunks[chunkNum] == 'undefined') {
            lazyArray.chunks[chunkNum] = doXHR(start, end);
          }
          if (typeof lazyArray.chunks[chunkNum] == 'undefined')
            abort('doXHR failed!');
          return lazyArray.chunks[chunkNum];
        });

        if (usesGzip || !datalength) {
          // if the server uses gzip or doesn't supply the length, we have to download the whole file to get the (uncompressed) length
          chunkSize = datalength = 1; // this will force getter(0)/doXHR do download the whole file
          datalength = this.getter(0).length;
          chunkSize = datalength;
          out(
            'LazyFiles on gzip forces download of the whole file when length is accessed'
          );
        }

        this._length = datalength;
        this._chunkSize = chunkSize;
        this.lengthKnown = true;
      }
      get length() {
        if (!this.lengthKnown) {
          this.cacheLength();
        }
        return this._length;
      }
      get chunkSize() {
        if (!this.lengthKnown) {
          this.cacheLength();
        }
        return this._chunkSize;
      }
    }

    if (globalThis.XMLHttpRequest) {
      if (!ENVIRONMENT_IS_WORKER)
        abort(
          'Cannot do synchronous binary XHRs outside webworkers in modern browsers. Use --embed-file or --preload-file in emcc'
        );
      var lazyArray = new LazyUint8Array();
      var properties = { isDevice: false, contents: lazyArray };
    } else {
      var properties = { isDevice: false, url: url };
    }

    var node = FS.createFile(parent, name, properties, canRead, canWrite);
    // This is a total hack, but I want to get this lazy file code out of the
    // core of MEMFS. If we want to keep this lazy file concept I feel it should
    // be its own thin LAZYFS proxying calls to MEMFS.
    if (properties.contents) {
      node.contents = properties.contents;
    } else if (properties.url) {
      node.contents = null;
      node.url = properties.url;
    }
    // Add a function that defers querying the file size until it is asked the first time.
    Object.defineProperties(node, {
      usedBytes: {
        get: function () {
          return this.contents.length;
        },
      },
    });
    // override each stream op with one that tries to force load the lazy file first
    var stream_ops = {};
    for (const [key, fn] of Object.entries(node.stream_ops)) {
      stream_ops[key] = (...args) => {
        FS.forceLoadFile(node);
        return fn(...args);
      };
    }
    function writeChunks(stream, buffer, offset, length, position) {
      var contents = stream.node.contents;
      if (position >= contents.length) return 0;
      var size = Math.min(contents.length - position, length);
      assert(size >= 0);
      if (contents.slice) {
        // normal array
        for (var i = 0; i < size; i++) {
          buffer[offset + i] = contents[position + i];
        }
      } else {
        for (var i = 0; i < size; i++) {
          // LazyUint8Array from sync binary XHR
          buffer[offset + i] = contents.get(position + i);
        }
      }
      return size;
    }
    // use a custom read function
    stream_ops.read = (stream, buffer, offset, length, position) => {
      FS.forceLoadFile(node);
      return writeChunks(stream, buffer, offset, length, position);
    };
    // use a custom mmap function
    stream_ops.mmap = (stream, length, position, prot, flags) => {
      FS.forceLoadFile(node);
      var ptr = mmapAlloc(length);
      if (!ptr) {
        throw new FS.ErrnoError(48);
      }
      writeChunks(stream, HEAP8, ptr, length, position);
      return { ptr, allocated: true };
    };
    node.stream_ops = stream_ops;
    return node;
  },
};

var SYSCALLS = {
  calculateAt(dirfd, path, allowEmpty) {
    if (PATH.isAbs(path)) {
      return path;
    }
    // relative path
    var dir;
    if (dirfd === -100) {
      dir = FS.cwd();
    } else {
      var dirstream = SYSCALLS.getStreamFromFD(dirfd);
      dir = dirstream.path;
    }
    if (path.length == 0) {
      if (!allowEmpty) {
        throw new FS.ErrnoError(44);
      }
      return dir;
    }
    return dir + '/' + path;
  },
  writeStat(buf, stat) {
    HEAPU32[buf >> 2] = stat.dev;
    HEAPU32[(buf + 4) >> 2] = stat.mode;
    HEAPU32[(buf + 8) >> 2] = stat.nlink;
    HEAPU32[(buf + 12) >> 2] = stat.uid;
    HEAPU32[(buf + 16) >> 2] = stat.gid;
    HEAPU32[(buf + 20) >> 2] = stat.rdev;
    HEAP64[(buf + 24) >> 3] = BigInt(stat.size);
    HEAP32[(buf + 32) >> 2] = 4096;
    HEAP32[(buf + 36) >> 2] = stat.blocks;
    var atime = stat.atime.getTime();
    var mtime = stat.mtime.getTime();
    var ctime = stat.ctime.getTime();
    HEAP64[(buf + 40) >> 3] = BigInt(Math.floor(atime / 1000));
    HEAPU32[(buf + 48) >> 2] = (atime % 1000) * 1000 * 1000;
    HEAP64[(buf + 56) >> 3] = BigInt(Math.floor(mtime / 1000));
    HEAPU32[(buf + 64) >> 2] = (mtime % 1000) * 1000 * 1000;
    HEAP64[(buf + 72) >> 3] = BigInt(Math.floor(ctime / 1000));
    HEAPU32[(buf + 80) >> 2] = (ctime % 1000) * 1000 * 1000;
    HEAP64[(buf + 88) >> 3] = BigInt(stat.ino);
    return 0;
  },
  writeStatFs(buf, stats) {
    HEAPU32[(buf + 4) >> 2] = stats.bsize;
    HEAPU32[(buf + 60) >> 2] = stats.bsize;
    HEAP64[(buf + 8) >> 3] = BigInt(stats.blocks);
    HEAP64[(buf + 16) >> 3] = BigInt(stats.bfree);
    HEAP64[(buf + 24) >> 3] = BigInt(stats.bavail);
    HEAP64[(buf + 32) >> 3] = BigInt(stats.files);
    HEAP64[(buf + 40) >> 3] = BigInt(stats.ffree);
    HEAPU32[(buf + 48) >> 2] = stats.fsid;
    HEAPU32[(buf + 64) >> 2] = stats.flags; // ST_NOSUID
    HEAPU32[(buf + 56) >> 2] = stats.namelen;
  },
  doMsync(addr, stream, len, flags, offset) {
    if (!FS.isFile(stream.node.mode)) {
      throw new FS.ErrnoError(43);
    }
    if (flags & 2) {
      // MAP_PRIVATE calls need not to be synced back to underlying fs
      return 0;
    }
    var buffer = HEAPU8.slice(addr, addr + len);
    FS.msync(stream, buffer, offset, len, flags);
  },
  getStreamFromFD(fd) {
    var stream = FS.getStreamChecked(fd);
    return stream;
  },
  varargs: undefined,
  getStr(ptr) {
    var ret = UTF8ToString(ptr);
    return ret;
  },
};
function ___syscall_faccessat(dirfd, path, amode, flags) {
  try {
    path = SYSCALLS.getStr(path);
    assert(!flags || flags == 512);
    path = SYSCALLS.calculateAt(dirfd, path);
    if (amode & ~7) {
      // need a valid mode
      return -28;
    }
    var lookup = FS.lookupPath(path, { follow: true });
    var node = lookup.node;
    if (!node) {
      return -44;
    }
    var perms = '';
    if (amode & 4) perms += 'r';
    if (amode & 2) perms += 'w';
    if (amode & 1) perms += 'x';
    if (
      perms /* otherwise, they've just passed F_OK */ &&
      FS.nodePermissions(node, perms)
    ) {
      return -2;
    }
    return 0;
  } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
}

var syscallGetVarargI = () => {
  assert(SYSCALLS.varargs != undefined);
  // the `+` prepended here is necessary to convince the JSCompiler that varargs is indeed a number.
  var ret = HEAP32[+SYSCALLS.varargs >> 2];
  SYSCALLS.varargs += 4;
  return ret;
};
var syscallGetVarargP = syscallGetVarargI;

function ___syscall_fcntl64(fd, cmd, varargs) {
  SYSCALLS.varargs = varargs;
  try {
    var stream = SYSCALLS.getStreamFromFD(fd);
    switch (cmd) {
      case 0: {
        var arg = syscallGetVarargI();
        if (arg < 0) {
          return -28;
        }
        while (FS.streams[arg]) {
          arg++;
        }
        var newStream;
        newStream = FS.dupStream(stream, arg);
        return newStream.fd;
      }
      case 1:
      case 2:
        return 0; // FD_CLOEXEC makes no sense for a single process.
      case 3:
        return stream.flags;
      case 4: {
        var arg = syscallGetVarargI();
        stream.flags |= arg;
        return 0;
      }
      case 12: {
        var arg = syscallGetVarargP();
        var offset = 0;
        // We're always unlocked.
        HEAP16[(arg + offset) >> 1] = 2;
        return 0;
      }
      case 13:
      case 14:
        // Pretend that the locking is successful. These are process-level locks,
        // and Emscripten programs are a single process. If we supported linking a
        // filesystem between programs, we'd need to do more here.
        // See https://github.com/emscripten-core/emscripten/issues/23697
        return 0;
    }
    return -28;
  } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
}

var stringToUTF8 = (str, outPtr, maxBytesToWrite) => {
  assert(
    typeof maxBytesToWrite == 'number',
    'stringToUTF8(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!'
  );
  return stringToUTF8Array(str, HEAPU8, outPtr, maxBytesToWrite);
};
function ___syscall_getcwd(buf, size) {
  try {
    if (size === 0) return -28;
    var cwd = FS.cwd();
    var cwdLengthInBytes = lengthBytesUTF8(cwd) + 1;
    if (size < cwdLengthInBytes) return -68;
    stringToUTF8(cwd, buf, size);
    return cwdLengthInBytes;
  } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
}

function ___syscall_ioctl(fd, op, varargs) {
  SYSCALLS.varargs = varargs;
  try {
    var stream = SYSCALLS.getStreamFromFD(fd);
    switch (op) {
      case 21509: {
        if (!stream.tty) return -59;
        return 0;
      }
      case 21505: {
        if (!stream.tty) return -59;
        if (stream.tty.ops.ioctl_tcgets) {
          var termios = stream.tty.ops.ioctl_tcgets(stream);
          var argp = syscallGetVarargP();
          HEAP32[argp >> 2] = termios.c_iflag || 0;
          HEAP32[(argp + 4) >> 2] = termios.c_oflag || 0;
          HEAP32[(argp + 8) >> 2] = termios.c_cflag || 0;
          HEAP32[(argp + 12) >> 2] = termios.c_lflag || 0;
          for (var i = 0; i < 32; i++) {
            HEAP8[argp + i + 17] = termios.c_cc[i] || 0;
          }
          return 0;
        }
        return 0;
      }
      case 21510:
      case 21511:
      case 21512: {
        if (!stream.tty) return -59;
        return 0; // no-op, not actually adjusting terminal settings
      }
      case 21506:
      case 21507:
      case 21508: {
        if (!stream.tty) return -59;
        if (stream.tty.ops.ioctl_tcsets) {
          var argp = syscallGetVarargP();
          var c_iflag = HEAP32[argp >> 2];
          var c_oflag = HEAP32[(argp + 4) >> 2];
          var c_cflag = HEAP32[(argp + 8) >> 2];
          var c_lflag = HEAP32[(argp + 12) >> 2];
          var c_cc = [];
          for (var i = 0; i < 32; i++) {
            c_cc.push(HEAP8[argp + i + 17]);
          }
          return stream.tty.ops.ioctl_tcsets(stream.tty, op, {
            c_iflag,
            c_oflag,
            c_cflag,
            c_lflag,
            c_cc,
          });
        }
        return 0; // no-op, not actually adjusting terminal settings
      }
      case 21519: {
        if (!stream.tty) return -59;
        var argp = syscallGetVarargP();
        HEAP32[argp >> 2] = 0;
        return 0;
      }
      case 21520: {
        if (!stream.tty) return -59;
        return -28; // not supported
      }
      case 21537:
      case 21531: {
        var argp = syscallGetVarargP();
        return FS.ioctl(stream, op, argp);
      }
      case 21523: {
        // TODO: in theory we should write to the winsize struct that gets
        // passed in, but for now musl doesn't read anything on it
        if (!stream.tty) return -59;
        if (stream.tty.ops.ioctl_tiocgwinsz) {
          var winsize = stream.tty.ops.ioctl_tiocgwinsz(stream.tty);
          var argp = syscallGetVarargP();
          HEAP16[argp >> 1] = winsize[0];
          HEAP16[(argp + 2) >> 1] = winsize[1];
        }
        return 0;
      }
      case 21524: {
        // TODO: technically, this ioctl call should change the window size.
        // but, since emscripten doesn't have any concept of a terminal window
        // yet, we'll just silently throw it away as we do TIOCGWINSZ
        if (!stream.tty) return -59;
        return 0;
      }
      case 21515: {
        if (!stream.tty) return -59;
        return 0;
      }
      default:
        return -28; // not supported
    }
  } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return -e.errno;
  }
}

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

var __abort_js = () => abort('native code called abort()');

var _emscripten_get_now = () => performance.now();

var _emscripten_date_now = () => Date.now();

var nowIsMonotonic = 1;

var checkWasiClock = (clock_id) => clock_id >= 0 && clock_id <= 3;

var INT53_MAX = 9007199254740992;

var INT53_MIN = -9007199254740992;
var bigintToI53Checked = (num) =>
  num < INT53_MIN || num > INT53_MAX ? NaN : Number(num);
function _clock_time_get(clk_id, ignored_precision, ptime) {
  ignored_precision = bigintToI53Checked(ignored_precision);

  if (!checkWasiClock(clk_id)) {
    return 28;
  }
  var now;
  // all wasi clocks but realtime are monotonic
  if (clk_id === 0) {
    now = _emscripten_date_now();
  } else if (nowIsMonotonic) {
    now = _emscripten_get_now();
  } else {
    return 52;
  }
  // "now" is in ms, and wasi times are in ns.
  var nsec = Math.round(now * 1000 * 1000);
  HEAP64[ptime >> 3] = BigInt(nsec);
  return 0;
}

var readEmAsmArgsArray = [];
var readEmAsmArgs = (sigPtr, buf) => {
  // Nobody should have mutated _readEmAsmArgsArray underneath us to be something else than an array.
  assert(Array.isArray(readEmAsmArgsArray));
  // The input buffer is allocated on the stack, so it must be stack-aligned.
  assert(buf % 16 == 0);
  readEmAsmArgsArray.length = 0;
  var ch;
  // Most arguments are i32s, so shift the buffer pointer so it is a plain
  // index into HEAP32.
  while ((ch = HEAPU8[sigPtr++])) {
    var chr = String.fromCharCode(ch);
    var validChars = ['d', 'f', 'i', 'p'];
    // In WASM_BIGINT mode we support passing i64 values as bigint.
    validChars.push('j');
    assert(
      validChars.includes(chr),
      `Invalid character ${ch}("${chr}") in readEmAsmArgs! Use only [${validChars}], and do not specify "v" for void return argument.`
    );
    // Floats are always passed as doubles, so all types except for 'i'
    // are 8 bytes and require alignment.
    var wide = ch != 105;
    wide &= ch != 112;
    buf += wide && buf % 8 ? 4 : 0;
    readEmAsmArgsArray.push(
      // Special case for pointers under wasm64 or CAN_ADDRESS_2GB mode.
      ch == 112
        ? HEAPU32[buf >> 2]
        : ch == 106
          ? HEAP64[buf >> 3]
          : ch == 105
            ? HEAP32[buf >> 2]
            : HEAPF64[buf >> 3]
    );
    buf += wide ? 8 : 4;
  }
  return readEmAsmArgsArray;
};
var runEmAsmFunction = (code, sigPtr, argbuf) => {
  var args = readEmAsmArgs(sigPtr, argbuf);
  assert(
    ASM_CONSTS.hasOwnProperty(code),
    `No EM_ASM constant found at address ${code}.  The loaded WebAssembly file is likely out of sync with the generated JavaScript.`
  );
  return ASM_CONSTS[code](...args);
};
var _emscripten_asm_const_double = (code, sigPtr, argbuf) => {
  return runEmAsmFunction(code, sigPtr, argbuf);
};

var _emscripten_asm_const_int = (code, sigPtr, argbuf) => {
  return runEmAsmFunction(code, sigPtr, argbuf);
};

var maybeCStringToJsString = (cString) => {
  // "cString > 2" checks if the input is a number, and isn't of the special
  // values we accept here, EMSCRIPTEN_EVENT_TARGET_* (which map to 0, 1, 2).
  // In other words, if cString > 2 then it's a pointer to a valid place in
  // memory, and points to a C string.
  return cString > 2 ? UTF8ToString(cString) : cString;
};

/** @type {Object} */
var specialHTMLTargets = [0, globalThis.document ?? 0, globalThis.window ?? 0];
var findEventTarget = (target) => {
  target = maybeCStringToJsString(target);
  var domElement =
    specialHTMLTargets[target] || globalThis.document?.querySelector(target);
  return domElement;
};

var getBoundingClientRect = (e) =>
  specialHTMLTargets.indexOf(e) < 0
    ? e.getBoundingClientRect()
    : { left: 0, top: 0 };
var _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;
};

var onExits = [];
var addOnExit = (cb) => onExits.push(cb);
var JSEvents = {
  removeAllEventListeners() {
    while (JSEvents.eventHandlers.length) {
      JSEvents._removeHandler(JSEvents.eventHandlers.length - 1);
    }
    JSEvents.deferredCalls = [];
  },
  inEventHandler: 0,
  deferredCalls: [],
  deferCall(targetFunction, precedence, argsList) {
    function arraysHaveEqualContent(arrA, arrB) {
      if (arrA.length != arrB.length) return false;

      for (var i in arrA) {
        if (arrA[i] != arrB[i]) return false;
      }
      return true;
    }
    // Test if the given call was already queued, and if so, don't add it again.
    for (var call of JSEvents.deferredCalls) {
      if (
        call.targetFunction == targetFunction &&
        arraysHaveEqualContent(call.argsList, argsList)
      ) {
        return;
      }
    }
    JSEvents.deferredCalls.push({
      targetFunction,
      precedence,
      argsList,
    });

    JSEvents.deferredCalls.sort((x, y) => x.precedence < y.precedence);
  },
  removeDeferredCalls(targetFunction) {
    JSEvents.deferredCalls = JSEvents.deferredCalls.filter(
      (call) => call.targetFunction != targetFunction
    );
  },
  canPerformEventHandlerRequests() {
    if (navigator.userActivation) {
      // Verify against transient activation status from UserActivation API
      // whether it is possible to perform a request here without needing to defer. See
      // https://developer.mozilla.org/en-US/docs/Web/Security/User_activation#transient_activation
      // and https://caniuse.com/mdn-api_useractivation
      // At the time of writing, Firefox does not support this API: https://bugzil.la/1791079
      return navigator.userActivation.isActive;
    }

    return (
      JSEvents.inEventHandler &&
      JSEvents.currentEventHandler.allowsDeferredCalls
    );
  },
  runDeferredCalls() {
    if (!JSEvents.canPerformEventHandlerRequests()) {
      return;
    }
    var deferredCalls = JSEvents.deferredCalls;
    JSEvents.deferredCalls = [];
    for (var call of deferredCalls) {
      call.targetFunction(...call.argsList);
    }
  },
  eventHandlers: [],
  removeAllHandlersOnTarget: (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(i) {
    var h = JSEvents.eventHandlers[i];
    h.target.removeEventListener(
      h.eventTypeString,
      h.eventListenerFunc,
      h.useCapture
    );
    JSEvents.eventHandlers.splice(i, 1);
  },
  registerOrRemoveHandler(eventHandler) {
    if (!eventHandler.target) {
      err(
        'registerOrRemoveHandler: the target element for event handler registration does not exist, when processing the following event handler registration:'
      );
      console.dir(eventHandler);
      return -4;
    }
    if (eventHandler.callbackfunc) {
      eventHandler.eventListenerFunc = function (event) {
        // Increment nesting count for the event handler.
        ++JSEvents.inEventHandler;
        JSEvents.currentEventHandler = eventHandler;
        // Process any old deferred calls the user has placed.
        JSEvents.runDeferredCalls();
        // Process the actual event, calls back to user C code handler.
        eventHandler.handlerFunc(event);
        // Process any new deferred calls that were placed right now from this event handler.
        JSEvents.runDeferredCalls();
        // Out of event handler - restore nesting count.
        --JSEvents.inEventHandler;
      };

      eventHandler.target.addEventListener(
        eventHandler.eventTypeString,
        eventHandler.eventListenerFunc,
        eventHandler.useCapture
      );
      JSEvents.eventHandlers.push(eventHandler);
    } 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--);
        }
      }
    }
    return 0;
  },
  removeSingleHandler(eventHandler) {
    let success = false;
    for (let i = 0; i < JSEvents.eventHandlers.length; ++i) {
      const handler = JSEvents.eventHandlers[i];
      if (
        handler.target === eventHandler.target &&
        handler.eventTypeId === eventHandler.eventTypeId &&
        handler.callbackfunc === eventHandler.callbackfunc &&
        handler.userData === eventHandler.userData
      ) {
        // in some very rare cases (ex: Safari / fullscreen events), there is more than 1 handler (eventTypeString is different)
        JSEvents._removeHandler(i--);
        success = true;
      }
    }
    return success ? 0 : -5;
  },
  getNodeNameForTarget(target) {
    if (!target) return '';
    if (target == window) return '#window';
    if (target == screen) return '#screen';
    return target?.nodeName || '';
  },
  fullscreenEnabled() {
    return (
      document.fullscreenEnabled ||
      // Safari 13.0.3 on macOS Catalina 10.15.1 still ships with prefixed webkitFullscreenEnabled.
      // TODO: If Safari at some point ships with unprefixed version, update the version check above.
      document.webkitFullscreenEnabled
    );
  },
};

var fillGamepadEventData = (eventStruct, e) => {
  HEAPF64[eventStruct >> 3] = e.timestamp;
  for (var i = 0; i < e.axes.length; ++i) {
    HEAPF64[(eventStruct + i * 8 + 16) >> 3] = e.axes[i];
  }
  for (var i = 0; i < e.buttons.length; ++i) {
    if (typeof e.buttons[i] == 'object') {
      HEAPF64[(eventStruct + i * 8 + 528) >> 3] = e.buttons[i].value;
    } else {
      HEAPF64[(eventStruct + i * 8 + 528) >> 3] = e.buttons[i];
    }
  }
  for (var i = 0; i < e.buttons.length; ++i) {
    if (typeof e.buttons[i] == 'object') {
      HEAP8[eventStruct + i + 1040] = e.buttons[i].pressed;
    } else {
      // Assigning a boolean to HEAP32, that's ok, but Closure would like to warn about it:
      /** @suppress {checkTypes} */
      HEAP8[eventStruct + i + 1040] = e.buttons[i] == 1;
    }
  }
  HEAP8[eventStruct + 1104] = e.connected;
  HEAP32[(eventStruct + 1108) >> 2] = e.index;
  HEAP32[(eventStruct + 8) >> 2] = e.axes.length;
  HEAP32[(eventStruct + 12) >> 2] = e.buttons.length;
  stringToUTF8(e.id, eventStruct + 1112, 64);
  stringToUTF8(e.mapping, eventStruct + 1176, 64);
};
var _emscripten_get_gamepad_status = (index, gamepadState) => {
  assert(
    JSEvents.lastGamepadState,
    'emscripten_get_gamepad_status() can only be called after having first called emscripten_sample_gamepad_data() and that function has returned EMSCRIPTEN_RESULT_SUCCESS!'
  );
  // INVALID_PARAM is returned on a Gamepad index that never was there.
  if (index < 0 || index >= JSEvents.lastGamepadState.length) return -5;

  // NO_DATA is returned on a Gamepad index that was removed.
  // For previously disconnected gamepads there should be an empty slot (null/undefined/false) at the index.
  // This is because gamepads must keep their original position in the array.
  // For example, removing the first of two gamepads produces [null/undefined/false, gamepad].
  if (!JSEvents.lastGamepadState[index]) return -7;

  fillGamepadEventData(gamepadState, JSEvents.lastGamepadState[index]);
  return 0;
};

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

var GLctx;

var webgl_enable_ANGLE_instanced_arrays = (ctx) => {
  // Extension available in WebGL 1 from Firefox 26 and Google Chrome 30 onwards. Core feature in WebGL 2.
  var ext = ctx.getExtension('ANGLE_instanced_arrays');
  // Because this extension is a core function in WebGL 2, assign the extension entry points in place of
  // where the core functions will reside in WebGL 2. This way the calling code can call these without
  // having to dynamically branch depending if running against WebGL 1 or WebGL 2.
  if (ext) {
    ctx['vertexAttribDivisor'] = (index, divisor) =>
      ext['vertexAttribDivisorANGLE'](index, divisor);
    ctx['drawArraysInstanced'] = (mode, first, count, primcount) =>
      ext['drawArraysInstancedANGLE'](mode, first, count, primcount);
    ctx['drawElementsInstanced'] = (mode, count, type, indices, primcount) =>
      ext['drawElementsInstancedANGLE'](mode, count, type, indices, primcount);
    return 1;
  }
};

var webgl_enable_OES_vertex_array_object = (ctx) => {
  // Extension available in WebGL 1 from Firefox 25 and WebKit 536.28/desktop Safari 6.0.3 onwards. Core feature in WebGL 2.
  var ext = ctx.getExtension('OES_vertex_array_object');
  if (ext) {
    ctx['createVertexArray'] = () => ext['createVertexArrayOES']();
    ctx['deleteVertexArray'] = (vao) => ext['deleteVertexArrayOES'](vao);
    ctx['bindVertexArray'] = (vao) => ext['bindVertexArrayOES'](vao);
    ctx['isVertexArray'] = (vao) => ext['isVertexArrayOES'](vao);
    return 1;
  }
};

var webgl_enable_WEBGL_draw_buffers = (ctx) => {
  // Extension available in WebGL 1 from Firefox 28 onwards. Core feature in WebGL 2.
  var ext = ctx.getExtension('WEBGL_draw_buffers');
  if (ext) {
    ctx['drawBuffers'] = (n, bufs) => ext['drawBuffersWEBGL'](n, bufs);
    return 1;
  }
};

var webgl_enable_EXT_polygon_offset_clamp = (ctx) =>
  !!(ctx.extPolygonOffsetClamp = ctx.getExtension('EXT_polygon_offset_clamp'));

var webgl_enable_EXT_clip_control = (ctx) =>
  !!(ctx.extClipControl = ctx.getExtension('EXT_clip_control'));

var webgl_enable_WEBGL_polygon_mode = (ctx) =>
  !!(ctx.webglPolygonMode = ctx.getExtension('WEBGL_polygon_mode'));

var webgl_enable_WEBGL_multi_draw = (ctx) =>
  // Closure is expected to be allowed to minify the '.multiDrawWebgl' property, so not accessing it quoted.
  !!(ctx.multiDrawWebgl = ctx.getExtension('WEBGL_multi_draw'));

var getEmscriptenSupportedExtensions = (ctx) => {
  // Restrict the list of advertised extensions to those that we actually
  // support.
  var supportedExtensions = [
    // WebGL 1 extensions
    'ANGLE_instanced_arrays',
    'EXT_blend_minmax',
    'EXT_disjoint_timer_query',
    'EXT_frag_depth',
    'EXT_shader_texture_lod',
    'EXT_sRGB',
    'OES_element_index_uint',
    'OES_fbo_render_mipmap',
    'OES_standard_derivatives',
    'OES_texture_float',
    'OES_texture_half_float',
    'OES_texture_half_float_linear',
    'OES_vertex_array_object',
    'WEBGL_color_buffer_float',
    'WEBGL_depth_texture',
    'WEBGL_draw_buffers',
    // WebGL 1 and WebGL 2 extensions
    'EXT_clip_control',
    'EXT_color_buffer_half_float',
    'EXT_depth_clamp',
    'EXT_float_blend',
    'EXT_polygon_offset_clamp',
    'EXT_texture_compression_bptc',
    'EXT_texture_compression_rgtc',
    'EXT_texture_filter_anisotropic',
    'KHR_parallel_shader_compile',
    'OES_texture_float_linear',
    'WEBGL_blend_func_extended',
    'WEBGL_compressed_texture_astc',
    'WEBGL_compressed_texture_etc',
    'WEBGL_compressed_texture_etc1',
    'WEBGL_compressed_texture_s3tc',
    'WEBGL_compressed_texture_s3tc_srgb',
    'WEBGL_debug_renderer_info',
    'WEBGL_debug_shaders',
    'WEBGL_lose_context',
    'WEBGL_multi_draw',
    'WEBGL_polygon_mode',
  ];
  // .getSupportedExtensions() can return null if context is lost, so coerce to empty array.
  return (ctx.getSupportedExtensions() || []).filter((ext) =>
    supportedExtensions.includes(ext)
  );
};

var GL = {
  counter: 1,
  buffers: [],
  programs: [],
  framebuffers: [],
  renderbuffers: [],
  textures: [],
  shaders: [],
  vaos: [],
  contexts: [],
  offscreenCanvases: {},
  queries: [],
  stringCache: {},
  unpackAlignment: 4,
  unpackRowLength: 0,
  recordError: (errorCode) => {
    if (!GL.lastError) {
      GL.lastError = errorCode;
    }
  },
  getNewId: (table) => {
    var ret = GL.counter++;
    for (var i = table.length; i < ret; i++) {
      table[i] = null;
    }
    return ret;
  },
  genObject: (n, buffers, createFunction, objectTable) => {
    for (var i = 0; i < n; i++) {
      var buffer = GLctx[createFunction]();
      var id = buffer && GL.getNewId(objectTable);
      if (buffer) {
        buffer.name = id;
        objectTable[id] = buffer;
      } else {
        GL.recordError(0x502 /* GL_INVALID_OPERATION */);
      }
      HEAP32[(buffers + i * 4) >> 2] = id;
    }
  },
  getSource: (shader, count, string, length) => {
    var source = '';
    for (var i = 0; i < count; ++i) {
      var len = length ? HEAPU32[(length + i * 4) >> 2] : undefined;
      source += UTF8ToString(HEAPU32[(string + i * 4) >> 2], len);
    }
    return source;
  },
  createContext: (
    /** @type {HTMLCanvasElement} */ canvas,
    webGLContextAttributes
  ) => {
    // BUG: Workaround Safari WebGL issue: After successfully acquiring WebGL
    // context on a canvas, calling .getContext() will always return that
    // context independent of which 'webgl' or 'webgl2'
    // context version was passed. See:
    //   https://webkit.org/b/222758
    // and:
    //   https://github.com/emscripten-core/emscripten/issues/13295.
    // TODO: Once the bug is fixed and shipped in Safari, adjust the Safari
    // version field in above check.
    if (!canvas.getContextSafariWebGL2Fixed) {
      canvas.getContextSafariWebGL2Fixed = canvas.getContext;
      /** @type {function(this:HTMLCanvasElement, string, (Object|null)=): (Object|null)} */
      function fixedGetContext(ver, attrs) {
        var gl = canvas.getContextSafariWebGL2Fixed(ver, attrs);
        return (ver == 'webgl') == gl instanceof WebGLRenderingContext
          ? gl
          : null;
      }
      canvas.getContext = fixedGetContext;
    }

    var ctx = canvas.getContext('webgl', webGLContextAttributes);

    if (!ctx) return 0;

    var handle = GL.registerContext(ctx, webGLContextAttributes);

    return handle;
  },
  registerContext: (ctx, webGLContextAttributes) => {
    // without pthreads a context is just an integer ID
    var handle = GL.getNewId(GL.contexts);

    var context = {
      handle,
      attributes: webGLContextAttributes,
      version: webGLContextAttributes.majorVersion,
      GLctx: ctx,
    };

    // Store the created context object so that we can access the context
    // given a canvas without having to pass the parameters again.
    if (ctx.canvas) ctx.canvas.GLctxObject = context;
    GL.contexts[handle] = context;
    if (
      typeof webGLContextAttributes.enableExtensionsByDefault == 'undefined' ||
      webGLContextAttributes.enableExtensionsByDefault
    ) {
      GL.initExtensions(context);
    }

    return handle;
  },
  makeContextCurrent: (contextHandle) => {
    // Active Emscripten GL layer context object.
    GL.currentContext = GL.contexts[contextHandle];
    // Active WebGL context object.
    Module['ctx'] = GLctx = GL.currentContext?.GLctx;
    return !(contextHandle && !GLctx);
  },
  getContext: (contextHandle) => {
    return GL.contexts[contextHandle];
  },
  deleteContext: (contextHandle) => {
    if (GL.currentContext === GL.contexts[contextHandle]) {
      GL.currentContext = null;
    }
    if (typeof JSEvents == 'object') {
      // Release all JS event handlers on the DOM element that the GL context is
      // associated with since the context is now deleted.
      JSEvents.removeAllHandlersOnTarget(
        GL.contexts[contextHandle].GLctx.canvas
      );
    }
    // Make sure the canvas object no longer refers to the context object so
    // there are no GC surprises.
    if (GL.contexts[contextHandle]?.GLctx.canvas) {
      GL.contexts[contextHandle].GLctx.canvas.GLctxObject = undefined;
    }
    GL.contexts[contextHandle] = null;
  },
  initExtensions: (context) => {
    // If this function is called without a specific context object, init the
    // extensions of the currently active context.
    context ||= GL.currentContext;

    if (context.initExtensionsDone) return;
    context.initExtensionsDone = true;

    var GLctx = context.GLctx;

    // Detect the presence of a few extensions manually, since the GL interop
    // layer itself will need to know if they exist.

    // Extensions that are available in both WebGL 1 and WebGL 2
    webgl_enable_WEBGL_multi_draw(GLctx);
    webgl_enable_EXT_polygon_offset_clamp(GLctx);
    webgl_enable_EXT_clip_control(GLctx);
    webgl_enable_WEBGL_polygon_mode(GLctx);
    // Extensions that are only available in WebGL 1 (the calls will be no-ops
    // if called on a WebGL 2 context active)
    webgl_enable_ANGLE_instanced_arrays(GLctx);
    webgl_enable_OES_vertex_array_object(GLctx);
    webgl_enable_WEBGL_draw_buffers(GLctx);
    {
      GLctx.disjointTimerQueryExt = GLctx.getExtension(
        'EXT_disjoint_timer_query'
      );
    }

    for (var ext of getEmscriptenSupportedExtensions(GLctx)) {
      // WEBGL_lose_context, WEBGL_debug_renderer_info and WEBGL_debug_shaders
      // are not enabled by default.
      if (!ext.includes('lose_context') && !ext.includes('debug')) {
        // Call .getExtension() to enable that extension permanently.
        GLctx.getExtension(ext);
      }
    }
  },
};
var _emscripten_glActiveTexture = (x0) => GLctx.activeTexture(x0);

var _emscripten_glAttachShader = (program, shader) => {
  GLctx.attachShader(GL.programs[program], GL.shaders[shader]);
};

var _emscripten_glBeginQueryEXT = (target, id) => {
  GLctx.disjointTimerQueryExt['beginQueryEXT'](target, GL.queries[id]);
};

var _emscripten_glBindAttribLocation = (program, index, name) => {
  GLctx.bindAttribLocation(GL.programs[program], index, UTF8ToString(name));
};

var _emscripten_glBindBuffer = (target, buffer) => {
  GLctx.bindBuffer(target, GL.buffers[buffer]);
};

var _emscripten_glBindFramebuffer = (target, framebuffer) => {
  GLctx.bindFramebuffer(target, GL.framebuffers[framebuffer]);
};

var _emscripten_glBindRenderbuffer = (target, renderbuffer) => {
  GLctx.bindRenderbuffer(target, GL.renderbuffers[renderbuffer]);
};

var _emscripten_glBindTexture = (target, texture) => {
  GLctx.bindTexture(target, GL.textures[texture]);
};

var _emscripten_glBindVertexArray = (vao) => {
  GLctx.bindVertexArray(GL.vaos[vao]);
};
var _glBindVertexArray = _emscripten_glBindVertexArray;
var _emscripten_glBindVertexArrayOES = _glBindVertexArray;

var _emscripten_glBlendColor = (x0, x1, x2, x3) =>
  GLctx.blendColor(x0, x1, x2, x3);

var _emscripten_glBlendEquation = (x0) => GLctx.blendEquation(x0);

var _emscripten_glBlendEquationSeparate = (x0, x1) =>
  GLctx.blendEquationSeparate(x0, x1);

var _emscripten_glBlendFunc = (x0, x1) => GLctx.blendFunc(x0, x1);

var _emscripten_glBlendFuncSeparate = (x0, x1, x2, x3) =>
  GLctx.blendFuncSeparate(x0, x1, x2, x3);

var _emscripten_glBufferData = (target, size, data, usage) => {
  // N.b. here first form specifies a heap subarray, second form an integer
  // size, so the ?: code here is polymorphic. It is advised to avoid
  // randomly mixing both uses in calling code, to avoid any potential JS
  // engine JIT issues.
  GLctx.bufferData(
    target,
    data ? HEAPU8.subarray(data, data + size) : size,
    usage
  );
};

var _emscripten_glBufferSubData = (target, offset, size, data) => {
  GLctx.bufferSubData(target, offset, HEAPU8.subarray(data, data + size));
};

var _emscripten_glCheckFramebufferStatus = (x0) =>
  GLctx.checkFramebufferStatus(x0);

var _emscripten_glClear = (x0) => GLctx.clear(x0);

var _emscripten_glClearColor = (x0, x1, x2, x3) =>
  GLctx.clearColor(x0, x1, x2, x3);

var _emscripten_glClearDepthf = (x0) => GLctx.clearDepth(x0);

var _emscripten_glClearStencil = (x0) => GLctx.clearStencil(x0);

var _emscripten_glClipControlEXT = (origin, depth) => {
  GLctx.extClipControl['clipControlEXT'](origin, depth);
};

var _emscripten_glColorMask = (red, green, blue, alpha) => {
  GLctx.colorMask(!!red, !!green, !!blue, !!alpha);
};

var _emscripten_glCompileShader = (shader) => {
  GLctx.compileShader(GL.shaders[shader]);
};

var _emscripten_glCompressedTexImage2D = (
  target,
  level,
  internalFormat,
  width,
  height,
  border,
  imageSize,
  data
) => {
  // `data` may be null here, which means "allocate uninitialized space but
  // don't upload" in GLES parlance, but `compressedTexImage2D` requires the
  // final data parameter, so we simply pass a heap view starting at zero
  // effectively uploading whatever happens to be near address zero.  See
  // https://github.com/emscripten-core/emscripten/issues/19300.
  GLctx.compressedTexImage2D(
    target,
    level,
    internalFormat,
    width,
    height,
    border,
    HEAPU8.subarray(data, data + imageSize)
  );
};

var _emscripten_glCompressedTexSubImage2D = (
  target,
  level,
  xoffset,
  yoffset,
  width,
  height,
  format,
  imageSize,
  data
) => {
  GLctx.compressedTexSubImage2D(
    target,
    level,
    xoffset,
    yoffset,
    width,
    height,
    format,
    HEAPU8.subarray(data, data + imageSize)
  );
};

var _emscripten_glCopyTexImage2D = (x0, x1, x2, x3, x4, x5, x6, x7) =>
  GLctx.copyTexImage2D(x0, x1, x2, x3, x4, x5, x6, x7);

var _emscripten_glCopyTexSubImage2D = (x0, x1, x2, x3, x4, x5, x6, x7) =>
  GLctx.copyTexSubImage2D(x0, x1, x2, x3, x4, x5, x6, x7);

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

var _emscripten_glCreateShader = (shaderType) => {
  var id = GL.getNewId(GL.shaders);
  GL.shaders[id] = GLctx.createShader(shaderType);

  return id;
};

var _emscripten_glCullFace = (x0) => GLctx.cullFace(x0);

var _emscripten_glDeleteBuffers = (n, buffers) => {
  for (var i = 0; i < n; i++) {
    var id = HEAP32[(buffers + i * 4) >> 2];
    var buffer = GL.buffers[id];

    // From spec: "glDeleteBuffers silently ignores 0's and names that do not
    // correspond to existing buffer objects."
    if (!buffer) continue;

    GLctx.deleteBuffer(buffer);
    buffer.name = 0;
    GL.buffers[id] = null;
  }
};

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

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

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

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

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

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

var _emscripten_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;
  }
};
var _glDeleteVertexArrays = _emscripten_glDeleteVertexArrays;
var _emscripten_glDeleteVertexArraysOES = _glDeleteVertexArrays;

var _emscripten_glDepthFunc = (x0) => GLctx.depthFunc(x0);

var _emscripten_glDepthMask = (flag) => {
  GLctx.depthMask(!!flag);
};

var _emscripten_glDepthRangef = (x0, x1) => GLctx.depthRange(x0, x1);

var _emscripten_glDetachShader = (program, shader) => {
  GLctx.detachShader(GL.programs[program], GL.shaders[shader]);
};

var _emscripten_glDisable = (x0) => GLctx.disable(x0);

var _emscripten_glDisableVertexAttribArray = (index) => {
  GLctx.disableVertexAttribArray(index);
};

var _emscripten_glDrawArrays = (mode, first, count) => {
  GLctx.drawArrays(mode, first, count);
};

var _emscripten_glDrawArraysInstanced = (mode, first, count, primcount) => {
  GLctx.drawArraysInstanced(mode, first, count, primcount);
};
var _glDrawArraysInstanced = _emscripten_glDrawArraysInstanced;
var _emscripten_glDrawArraysInstancedANGLE = _glDrawArraysInstanced;

var tempFixedLengthArray = [];

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

  GLctx.drawBuffers(bufArray);
};
var _glDrawBuffers = _emscripten_glDrawBuffers;
var _emscripten_glDrawBuffersWEBGL = _glDrawBuffers;

var _emscripten_glDrawElements = (mode, count, type, indices) => {
  GLctx.drawElements(mode, count, type, indices);
};

var _emscripten_glDrawElementsInstanced = (
  mode,
  count,
  type,
  indices,
  primcount
) => {
  GLctx.drawElementsInstanced(mode, count, type, indices, primcount);
};
var _glDrawElementsInstanced = _emscripten_glDrawElementsInstanced;
var _emscripten_glDrawElementsInstancedANGLE = _glDrawElementsInstanced;

var _emscripten_glEnable = (x0) => GLctx.enable(x0);

var _emscripten_glEnableVertexAttribArray = (index) => {
  GLctx.enableVertexAttribArray(index);
};

var _emscripten_glEndQueryEXT = (target) => {
  GLctx.disjointTimerQueryExt['endQueryEXT'](target);
};

var _emscripten_glFinish = () => GLctx.finish();

var _emscripten_glFlush = () => GLctx.flush();

var _emscripten_glFramebufferRenderbuffer = (
  target,
  attachment,
  renderbuffertarget,
  renderbuffer
) => {
  GLctx.framebufferRenderbuffer(
    target,
    attachment,
    renderbuffertarget,
    GL.renderbuffers[renderbuffer]
  );
};

var _emscripten_glFramebufferTexture2D = (
  target,
  attachment,
  textarget,
  texture,
  level
) => {
  GLctx.framebufferTexture2D(
    target,
    attachment,
    textarget,
    GL.textures[texture],
    level
  );
};

var _emscripten_glFrontFace = (x0) => GLctx.frontFace(x0);

var _emscripten_glGenBuffers = (n, buffers) => {
  GL.genObject(n, buffers, 'createBuffer', GL.buffers);
};

var _emscripten_glGenFramebuffers = (n, ids) => {
  GL.genObject(n, ids, 'createFramebuffer', GL.framebuffers);
};

var _emscripten_glGenQueriesEXT = (n, ids) => {
  for (var i = 0; i < n; i++) {
    var query = GLctx.disjointTimerQueryExt['createQueryEXT']();
    if (!query) {
      GL.recordError(0x502 /* GL_INVALID_OPERATION */);
      while (i < n) HEAP32[(ids + i++ * 4) >> 2] = 0;
      return;
    }
    var id = GL.getNewId(GL.queries);
    query.name = id;
    GL.queries[id] = query;
    HEAP32[(ids + i * 4) >> 2] = id;
  }
};

var _emscripten_glGenRenderbuffers = (n, renderbuffers) => {
  GL.genObject(n, renderbuffers, 'createRenderbuffer', GL.renderbuffers);
};

var _emscripten_glGenTextures = (n, textures) => {
  GL.genObject(n, textures, 'createTexture', GL.textures);
};

var _emscripten_glGenVertexArrays = (n, arrays) => {
  GL.genObject(n, arrays, 'createVertexArray', GL.vaos);
};
var _glGenVertexArrays = _emscripten_glGenVertexArrays;
var _emscripten_glGenVertexArraysOES = _glGenVertexArrays;

var _emscripten_glGenerateMipmap = (x0) => GLctx.generateMipmap(x0);

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

var _emscripten_glGetActiveAttrib = (
  program,
  index,
  bufSize,
  length,
  size,
  type,
  name
) =>
  __glGetActiveAttribOrUniform(
    'getActiveAttrib',
    program,
    index,
    bufSize,
    length,
    size,
    type,
    name
  );

var _emscripten_glGetActiveUniform = (
  program,
  index,
  bufSize,
  length,
  size,
  type,
  name
) =>
  __glGetActiveAttribOrUniform(
    'getActiveUniform',
    program,
    index,
    bufSize,
    length,
    size,
    type,
    name
  );

var _emscripten_glGetAttachedShaders = (program, maxCount, count, shaders) => {
  var result = GLctx.getAttachedShaders(GL.programs[program]);
  var len = result.length;
  if (len > maxCount) {
    len = maxCount;
  }
  HEAP32[count >> 2] = len;
  for (var i = 0; i < len; ++i) {
    var id = GL.shaders.indexOf(result[i]);
    HEAP32[(shaders + i * 4) >> 2] = id;
  }
};

var _emscripten_glGetAttribLocation = (program, name) =>
  GLctx.getAttribLocation(GL.programs[program], UTF8ToString(name));

var readI53FromI64 = (ptr) => {
  return HEAPU32[ptr >> 2] + HEAP32[(ptr + 4) >> 2] * 4294967296;
};

var readI53FromU64 = (ptr) => {
  return HEAPU32[ptr >> 2] + HEAPU32[(ptr + 4) >> 2] * 4294967296;
};
var writeI53ToI64 = (ptr, num) => {
  HEAPU32[ptr >> 2] = num;
  var lower = HEAPU32[ptr >> 2];
  HEAPU32[(ptr + 4) >> 2] = (num - lower) / 4294967296;
  var deserialized = num >= 0 ? readI53FromU64(ptr) : readI53FromI64(ptr);
  var offset = ptr >> 2;
  if (deserialized != num)
    warnOnce(
      `writeI53ToI64() out of range: serialized JS Number ${num} to Wasm heap as bytes lo=${ptrToString(HEAPU32[offset])}, hi=${ptrToString(HEAPU32[offset + 1])}, which deserializes back to ${deserialized} instead!`
    );
};

var emscriptenWebGLGet = (name_, p, type) => {
  // Guard against user passing a null pointer.
  // Note that GLES2 spec does not say anything about how passing a null
  // pointer should be treated.  Testing on desktop core GL 3, the application
  // crashes on glGetIntegerv to a null pointer, but better to report an error
  // instead of doing anything random.
  if (!p) {
    GL.recordError(0x501 /* GL_INVALID_VALUE */);
    return;
  }
  var ret = undefined;
  switch (
    name_ // Handle a few trivial GLES values
  ) {
    case 0x8dfa: // GL_SHADER_COMPILER
      ret = 1;
      break;
    case 0x8df8: // GL_SHADER_BINARY_FORMATS
      if (type != 0 && type != 1) {
        GL.recordError(0x500); // GL_INVALID_ENUM
      }
      // Do not write anything to the out pointer, since no binary formats are
      // supported.
      return;
    case 0x8df9: // GL_NUM_SHADER_BINARY_FORMATS
      ret = 0;
      break;
    case 0x86a2: // GL_NUM_COMPRESSED_TEXTURE_FORMATS
      // WebGL doesn't have GL_NUM_COMPRESSED_TEXTURE_FORMATS (it's obsolete
      // since GL_COMPRESSED_TEXTURE_FORMATS returns a JS array that can be
      // queried for length), so implement it ourselves to allow C++ GLES2
      // code to get the length.
      var formats = GLctx.getParameter(
        0x86a3 /*GL_COMPRESSED_TEXTURE_FORMATS*/
      );
      ret = formats ? formats.length : 0;
      break;
  }

  if (ret === undefined) {
    var result = GLctx.getParameter(name_);
    switch (typeof result) {
      case 'number':
        ret = result;
        break;
      case 'boolean':
        ret = result ? 1 : 0;
        break;
      case 'string':
        GL.recordError(0x500); // GL_INVALID_ENUM
        return;
      case 'object':
        if (result === null) {
          // null is a valid result for some (e.g., which buffer is bound -
          // perhaps nothing is bound), but otherwise can mean an invalid
          // name_, which we need to report as an error
          switch (name_) {
            case 0x8894: // ARRAY_BUFFER_BINDING
            case 0x8b8d: // CURRENT_PROGRAM
            case 0x8895: // ELEMENT_ARRAY_BUFFER_BINDING
            case 0x8ca6: // FRAMEBUFFER_BINDING or DRAW_FRAMEBUFFER_BINDING
            case 0x8ca7: // RENDERBUFFER_BINDING
            case 0x8069: // TEXTURE_BINDING_2D
            case 0x85b5: // WebGL 2 GL_VERTEX_ARRAY_BINDING, or WebGL 1 extension OES_vertex_array_object GL_VERTEX_ARRAY_BINDING_OES
            case 0x8514: {
              // TEXTURE_BINDING_CUBE_MAP
              ret = 0;
              break;
            }
            default: {
              GL.recordError(0x500); // GL_INVALID_ENUM
              return;
            }
          }
        } else if (
          result instanceof Float32Array ||
          result instanceof Uint32Array ||
          result instanceof Int32Array ||
          result instanceof Array
        ) {
          for (var i = 0; i < result.length; ++i) {
            switch (type) {
              case 0:
                HEAP32[(p + i * 4) >> 2] = result[i];
                break;
              case 2:
                HEAPF32[(p + i * 4) >> 2] = result[i];
                break;
              case 4:
                HEAP8[p + i] = result[i] ? 1 : 0;
                break;
            }
          }
          return;
        } else {
          try {
            ret = result.name | 0;
          } catch (e) {
            GL.recordError(0x500); // GL_INVALID_ENUM
            err(
              `GL_INVALID_ENUM in glGet${type}v: Unknown object returned from WebGL getParameter(${name_})! (error: ${e})`
            );
            return;
          }
        }
        break;
      default:
        GL.recordError(0x500); // GL_INVALID_ENUM
        err(
          `GL_INVALID_ENUM in glGet${type}v: Native code calling glGet${type}v(${name_}) and it returns ${result} of type ${typeof result}!`
        );
        return;
    }
  }

  switch (type) {
    case 1:
      writeI53ToI64(p, ret);
      break;
    case 0:
      HEAP32[p >> 2] = ret;
      break;
    case 2:
      HEAPF32[p >> 2] = ret;
      break;
    case 4:
      HEAP8[p] = ret ? 1 : 0;
      break;
  }
};

var _emscripten_glGetBooleanv = (name_, p) => emscriptenWebGLGet(name_, p, 4);

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

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

var _emscripten_glGetFloatv = (name_, p) => emscriptenWebGLGet(name_, p, 2);

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

var _emscripten_glGetIntegerv = (name_, p) => emscriptenWebGLGet(name_, p, 0);

var _emscripten_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;
};

var _emscripten_glGetProgramiv = (program, pname, p) => {
  if (!p) {
    // GLES2 specification does not specify how to behave if p is a null
    // pointer. Since calling this function does not make sense if p == null,
    // issue a GL error to notify user about it.
    GL.recordError(0x501 /* GL_INVALID_VALUE */);
    return;
  }

  if (program >= GL.counter) {
    GL.recordError(0x501 /* GL_INVALID_VALUE */);
    return;
  }

  program = GL.programs[program];

  if (pname == 0x8b84) {
    // GL_INFO_LOG_LENGTH
    var log = GLctx.getProgramInfoLog(program);
    if (log === null) log = '(unknown error)';
    HEAP32[p >> 2] = log.length + 1;
  } else if (pname == 0x8b87 /* GL_ACTIVE_UNIFORM_MAX_LENGTH */) {
    if (!program.maxUniformLength) {
      var numActiveUniforms = GLctx.getProgramParameter(
        program,
        0x8b86 /*GL_ACTIVE_UNIFORMS*/
      );
      for (var i = 0; i < numActiveUniforms; ++i) {
        program.maxUniformLength = Math.max(
          program.maxUniformLength,
          GLctx.getActiveUniform(program, i).name.length + 1
        );
      }
    }
    HEAP32[p >> 2] = program.maxUniformLength;
  } else if (pname == 0x8b8a /* GL_ACTIVE_ATTRIBUTE_MAX_LENGTH */) {
    if (!program.maxAttributeLength) {
      var numActiveAttributes = GLctx.getProgramParameter(
        program,
        0x8b89 /*GL_ACTIVE_ATTRIBUTES*/
      );
      for (var i = 0; i < numActiveAttributes; ++i) {
        program.maxAttributeLength = Math.max(
          program.maxAttributeLength,
          GLctx.getActiveAttrib(program, i).name.length + 1
        );
      }
    }
    HEAP32[p >> 2] = program.maxAttributeLength;
  } else if (pname == 0x8a35 /* GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH */) {
    if (!program.maxUniformBlockNameLength) {
      var numActiveUniformBlocks = GLctx.getProgramParameter(
        program,
        0x8a36 /*GL_ACTIVE_UNIFORM_BLOCKS*/
      );
      for (var i = 0; i < numActiveUniformBlocks; ++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);
  }
};

var _emscripten_glGetQueryObjecti64vEXT = (id, pname, params) => {
  if (!params) {
    // GLES2 specification does not specify how to behave if params is a null pointer. Since calling this function does not make sense
    // if p == null, issue a GL error to notify user about it.
    GL.recordError(0x501 /* GL_INVALID_VALUE */);
    return;
  }
  var query = GL.queries[id];
  var param;
  {
    param = GLctx.disjointTimerQueryExt['getQueryObjectEXT'](query, pname);
  }
  var ret;
  if (typeof param == 'boolean') {
    ret = param ? 1 : 0;
  } else {
    ret = param;
  }
  writeI53ToI64(params, ret);
};

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

var _glGetQueryObjecti64vEXT = _emscripten_glGetQueryObjecti64vEXT;
var _emscripten_glGetQueryObjectui64vEXT = _glGetQueryObjecti64vEXT;

var _glGetQueryObjectivEXT = _emscripten_glGetQueryObjectivEXT;
var _emscripten_glGetQueryObjectuivEXT = _glGetQueryObjectivEXT;

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

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

var _emscripten_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;
};

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

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

var _emscripten_glGetShaderiv = (shader, pname, p) => {
  if (!p) {
    // GLES2 specification does not specify how to behave if p is a null
    // pointer. Since calling this function does not make sense if p == null,
    // issue a GL error to notify user about it.
    GL.recordError(0x501 /* GL_INVALID_VALUE */);
    return;
  }
  if (pname == 0x8b84) {
    // GL_INFO_LOG_LENGTH
    var log = GLctx.getShaderInfoLog(GL.shaders[shader]);
    if (log === null) log = '(unknown error)';
    // The GLES2 specification says that if the shader has an empty info log,
    // a value of 0 is returned. Otherwise the log has a null char appended.
    // (An empty string is falsey, so we can just check that instead of
    // looking at log.length.)
    var logLength = log ? log.length + 1 : 0;
    HEAP32[p >> 2] = logLength;
  } else if (pname == 0x8b88) {
    // GL_SHADER_SOURCE_LENGTH
    var source = GLctx.getShaderSource(GL.shaders[shader]);
    // source may be a null, or the empty string, both of which are falsey
    // values that we report a 0 length for.
    var sourceLength = source ? source.length + 1 : 0;
    HEAP32[p >> 2] = sourceLength;
  } else {
    HEAP32[p >> 2] = GLctx.getShaderParameter(GL.shaders[shader], pname);
  }
};

var stringToNewUTF8 = (str) => {
  var size = lengthBytesUTF8(str) + 1;
  var ret = _malloc(size);
  if (ret) stringToUTF8(str, ret, size);
  return ret;
};

var webglGetExtensions = () => {
  var exts = getEmscriptenSupportedExtensions(GLctx);
  exts = exts.concat(exts.map((e) => 'GL_' + e));
  return exts;
};

var _emscripten_glGetString = (name_) => {
  var ret = GL.stringCache[name_];
  if (!ret) {
    switch (name_) {
      case 0x1f03 /* GL_EXTENSIONS */:
        ret = stringToNewUTF8(webglGetExtensions().join(' '));
        break;
      case 0x1f00 /* GL_VENDOR */:
      case 0x1f01 /* GL_RENDERER */:
      case 0x9245 /* UNMASKED_VENDOR_WEBGL */:
      case 0x9246 /* UNMASKED_RENDERER_WEBGL */:
        var s = GLctx.getParameter(name_);
        if (!s) {
          GL.recordError(0x500 /*GL_INVALID_ENUM*/);
        }
        ret = s ? stringToNewUTF8(s) : 0;
        break;

      case 0x1f02 /* GL_VERSION */:
        var webGLVersion = GLctx.getParameter(0x1f02 /*GL_VERSION*/);
        // return GLES version string corresponding to the version of the WebGL context
        var glVersion = `OpenGL ES 2.0 (${webGLVersion})`;
        ret = stringToNewUTF8(glVersion);
        break;
      case 0x8b8c /* GL_SHADING_LANGUAGE_VERSION */:
        var glslVersion = GLctx.getParameter(
          0x8b8c /*GL_SHADING_LANGUAGE_VERSION*/
        );
        // extract the version number 'N.M' from the string 'WebGL GLSL ES N.M ...'
        var ver_re = /^WebGL GLSL ES ([0-9]\.[0-9][0-9]?)(?:$| .*)/;
        var ver_num = glslVersion.match(ver_re);
        if (ver_num !== null) {
          if (ver_num[1].length == 3) ver_num[1] = ver_num[1] + '0'; // ensure minor version has 2 digits
          glslVersion = `OpenGL ES GLSL ES ${ver_num[1]} (${glslVersion})`;
        }
        ret = stringToNewUTF8(glslVersion);
        break;
      default:
        GL.recordError(0x500 /*GL_INVALID_ENUM*/);
      // fall through
    }
    GL.stringCache[name_] = ret;
  }
  return ret;
};

var _emscripten_glGetTexParameterfv = (target, pname, params) => {
  if (!params) {
    // GLES2 specification does not specify how to behave if params is a null
    // pointer. Since calling this function does not make sense if p == null,
    // issue a GL error to notify user about it.
    GL.recordError(0x501 /* GL_INVALID_VALUE */);
    return;
  }
  HEAPF32[params >> 2] = GLctx.getTexParameter(target, pname);
};

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

/** @suppress {checkTypes} */
var jstoi_q = (str) => parseInt(str);

/** @noinline */
var webglGetLeftBracePos = (name) =>
  name.slice(-1) == ']' && name.lastIndexOf('[');

var webglPrepareUniformLocationsBeforeFirstUse = (program) => {
  var uniformLocsById = program.uniformLocsById, // Maps GLuint -> WebGLUniformLocation
    uniformSizeAndIdsByName = program.uniformSizeAndIdsByName, // Maps name -> [uniform array length, GLuint]
    i,
    j;

  // On the first time invocation of glGetUniformLocation on this shader program:
  // initialize cache data structures and discover which uniforms are arrays.
  if (!uniformLocsById) {
    // maps GLint integer locations to WebGLUniformLocations
    program.uniformLocsById = uniformLocsById = {};
    // maps integer locations back to uniform name strings, so that we can lazily fetch uniform array locations
    program.uniformArrayNamesById = {};

    var numActiveUniforms = GLctx.getProgramParameter(
      program,
      0x8b86 /*GL_ACTIVE_UNIFORMS*/
    );
    for (i = 0; i < numActiveUniforms; ++i) {
      var u = GLctx.getActiveUniform(program, i);
      var nm = u.name;
      var sz = u.size;
      var lb = webglGetLeftBracePos(nm);
      var arrayName = lb > 0 ? nm.slice(0, lb) : nm;

      // Assign a new location.
      var id = program.uniformIdCounter;
      program.uniformIdCounter += sz;
      // Eagerly get the location of the uniformArray[0] base element.
      // The remaining indices >0 will be left for lazy evaluation to
      // improve performance. Those may never be needed to fetch, if the
      // application fills arrays always in full starting from the first
      // element of the array.
      uniformSizeAndIdsByName[arrayName] = [sz, id];

      // Store placeholder integers in place that highlight that these
      // >0 index locations are array indices pending population.
      for (j = 0; j < sz; ++j) {
        uniformLocsById[id] = j;
        program.uniformArrayNamesById[id++] = arrayName;
      }
    }
  }
};

var _emscripten_glGetUniformLocation = (program, name) => {
  name = UTF8ToString(name);

  if ((program = GL.programs[program])) {
    webglPrepareUniformLocationsBeforeFirstUse(program);
    var uniformLocsById = program.uniformLocsById; // Maps GLuint -> WebGLUniformLocation
    var arrayIndex = 0;
    var uniformBaseName = name;

    // Invariant: when populating integer IDs for uniform locations, we must
    // maintain the precondition that arrays reside in contiguous addresses,
    // i.e. for a 'vec4 colors[10];', colors[4] must be at location
    // colors[0]+4.  However, user might call glGetUniformLocation(program,
    // "colors") for an array, so we cannot discover based on the user input
    // arguments whether the uniform we are dealing with is an array. The only
    // way to discover which uniforms are arrays is to enumerate over all the
    // active uniforms in the program.
    var leftBrace = webglGetLeftBracePos(name);

    // If user passed an array accessor "[index]", parse the array index off the accessor.
    if (leftBrace > 0) {
      arrayIndex = jstoi_q(name.slice(leftBrace + 1)) >>> 0; // "index]", coerce parseInt(']') with >>>0 to treat "foo[]" as "foo[0]" and foo[-1] as unsigned out-of-bounds.
      uniformBaseName = name.slice(0, leftBrace);
    }

    // Have we cached the location of this uniform before?
    // A pair [array length, GLint of the uniform location]
    var sizeAndId = program.uniformSizeAndIdsByName[uniformBaseName];

    // If a uniform with this name exists, and if its index is within the
    // array limits (if it's even an array), query the WebGLlocation, or
    // return an existing cached location.
    if (sizeAndId && arrayIndex < sizeAndId[0]) {
      arrayIndex += sizeAndId[1]; // Add the base location of the uniform to the array index offset.
      if (
        (uniformLocsById[arrayIndex] =
          uniformLocsById[arrayIndex] ||
          GLctx.getUniformLocation(program, name))
      ) {
        return arrayIndex;
      }
    }
  } else {
    // N.b. we are currently unable to distinguish between GL program IDs that
    // never existed vs GL program IDs that have been deleted, so report
    // GL_INVALID_VALUE in both cases.
    GL.recordError(0x501 /* GL_INVALID_VALUE */);
  }
  return -1;
};

var webglGetUniformLocation = (location) => {
  var p = GLctx.currentProgram;

  if (p) {
    var webglLoc = p.uniformLocsById[location];
    // p.uniformLocsById[location] stores either an integer, or a
    // WebGLUniformLocation.
    // If an integer, we have not yet bound the location, so do it now. The
    // integer value specifies the array index we should bind to.
    if (typeof webglLoc == 'number') {
      p.uniformLocsById[location] = webglLoc = GLctx.getUniformLocation(
        p,
        p.uniformArrayNamesById[location] +
          (webglLoc > 0 ? `[${webglLoc}]` : '')
      );
    }
    // Else an already cached WebGLUniformLocation, return it.
    return webglLoc;
  } else {
    GL.recordError(0x502 /*GL_INVALID_OPERATION*/);
  }
};

/** @suppress{checkTypes} */
var emscriptenWebGLGetUniform = (program, location, params, type) => {
  if (!params) {
    // GLES2 specification does not specify how to behave if params is a null
    // pointer. Since calling this function does not make sense if params ==
    // null, issue a GL error to notify user about it.
    GL.recordError(0x501 /* GL_INVALID_VALUE */);
    return;
  }
  program = GL.programs[program];
  webglPrepareUniformLocationsBeforeFirstUse(program);
  var data = GLctx.getUniform(program, webglGetUniformLocation(location));
  if (typeof data == 'number' || typeof data == 'boolean') {
    switch (type) {
      case 0:
        HEAP32[params >> 2] = data;
        break;
      case 2:
        HEAPF32[params >> 2] = data;
        break;
    }
  } else {
    for (var i = 0; i < data.length; i++) {
      switch (type) {
        case 0:
          HEAP32[(params + i * 4) >> 2] = data[i];
          break;
        case 2:
          HEAPF32[(params + i * 4) >> 2] = data[i];
          break;
      }
    }
  }
};

var _emscripten_glGetUniformfv = (program, location, params) => {
  emscriptenWebGLGetUniform(program, location, params, 2);
};

var _emscripten_glGetUniformiv = (program, location, params) => {
  emscriptenWebGLGetUniform(program, location, params, 0);
};

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

/** @suppress{checkTypes} */
var emscriptenWebGLGetVertexAttrib = (index, pname, params, type) => {
  if (!params) {
    // GLES2 specification does not specify how to behave if params is a null
    // pointer. Since calling this function does not make sense if params ==
    // null, issue a GL error to notify user about it.
    GL.recordError(0x501 /* GL_INVALID_VALUE */);
    return;
  }
  var data = GLctx.getVertexAttrib(index, pname);
  if (pname == 0x889f /*VERTEX_ATTRIB_ARRAY_BUFFER_BINDING*/) {
    HEAP32[params >> 2] = data && data['name'];
  } else if (typeof data == 'number' || typeof data == 'boolean') {
    switch (type) {
      case 0:
        HEAP32[params >> 2] = data;
        break;
      case 2:
        HEAPF32[params >> 2] = data;
        break;
      case 5:
        HEAP32[params >> 2] = Math.fround(data);
        break;
    }
  } else {
    for (var i = 0; i < data.length; i++) {
      switch (type) {
        case 0:
          HEAP32[(params + i * 4) >> 2] = data[i];
          break;
        case 2:
          HEAPF32[(params + i * 4) >> 2] = data[i];
          break;
        case 5:
          HEAP32[(params + i * 4) >> 2] = Math.fround(data[i]);
          break;
      }
    }
  }
};

var _emscripten_glGetVertexAttribfv = (index, pname, params) => {
  // N.B. This function may only be called if the vertex attribute was
  // specified using the function glVertexAttrib*f(), otherwise the results
  // are undefined. (GLES3 spec 6.1.12)
  emscriptenWebGLGetVertexAttrib(index, pname, params, 2);
};

var _emscripten_glGetVertexAttribiv = (index, pname, params) => {
  // N.B. This function may only be called if the vertex attribute was
  // specified using the function glVertexAttrib*f(), otherwise the results
  // are undefined. (GLES3 spec 6.1.12)
  emscriptenWebGLGetVertexAttrib(index, pname, params, 5);
};

var _emscripten_glHint = (x0, x1) => GLctx.hint(x0, x1);

var _emscripten_glIsBuffer = (buffer) => {
  var b = GL.buffers[buffer];
  if (!b) return 0;
  return GLctx.isBuffer(b);
};

var _emscripten_glIsEnabled = (x0) => GLctx.isEnabled(x0);

var _emscripten_glIsFramebuffer = (framebuffer) => {
  var fb = GL.framebuffers[framebuffer];
  if (!fb) return 0;
  return GLctx.isFramebuffer(fb);
};

var _emscripten_glIsProgram = (program) => {
  program = GL.programs[program];
  if (!program) return 0;
  return GLctx.isProgram(program);
};

var _emscripten_glIsQueryEXT = (id) => {
  var query = GL.queries[id];
  if (!query) return 0;
  return GLctx.disjointTimerQueryExt['isQueryEXT'](query);
};

var _emscripten_glIsRenderbuffer = (renderbuffer) => {
  var rb = GL.renderbuffers[renderbuffer];
  if (!rb) return 0;
  return GLctx.isRenderbuffer(rb);
};

var _emscripten_glIsShader = (shader) => {
  var s = GL.shaders[shader];
  if (!s) return 0;
  return GLctx.isShader(s);
};

var _emscripten_glIsTexture = (id) => {
  var texture = GL.textures[id];
  if (!texture) return 0;
  return GLctx.isTexture(texture);
};

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

var _emscripten_glLineWidth = (x0) => GLctx.lineWidth(x0);

var _emscripten_glLinkProgram = (program) => {
  program = GL.programs[program];
  GLctx.linkProgram(program);
  // Invalidate earlier computed uniform->ID mappings, those have now become stale
  program.uniformLocsById = 0; // Mark as null-like so that glGetUniformLocation() knows to populate this again.
  program.uniformSizeAndIdsByName = {};
};

var _emscripten_glPixelStorei = (pname, param) => {
  if (pname == 3317) {
    GL.unpackAlignment = param;
  } else if (pname == 3314) {
    GL.unpackRowLength = param;
  }
  GLctx.pixelStorei(pname, param);
};

var _emscripten_glPolygonModeWEBGL = (face, mode) => {
  GLctx.webglPolygonMode['polygonModeWEBGL'](face, mode);
};

var _emscripten_glPolygonOffset = (x0, x1) => GLctx.polygonOffset(x0, x1);

var _emscripten_glPolygonOffsetClampEXT = (factor, units, clamp) => {
  GLctx.extPolygonOffsetClamp['polygonOffsetClampEXT'](factor, units, clamp);
};

var _emscripten_glQueryCounterEXT = (id, target) => {
  GLctx.disjointTimerQueryExt['queryCounterEXT'](GL.queries[id], target);
};

var computeUnpackAlignedImageSize = (width, height, sizePerPixel) => {
  function roundedToNextMultipleOf(x, y) {
    return (x + y - 1) & -y;
  }
  var plainRowSize = (GL.unpackRowLength || width) * sizePerPixel;
  var alignedRowSize = roundedToNextMultipleOf(
    plainRowSize,
    GL.unpackAlignment
  );
  return height * alignedRowSize;
};

var colorChannelsInGlTextureFormat = (format) => {
  // Micro-optimizations for size: map format to size by subtracting smallest
  // enum value (0x1902) from all values first.  Also omit the most common
  // size value (1) from the list, which is assumed by formats not on the
  // list.
  var colorChannels = {
    // 0x1902 /* GL_DEPTH_COMPONENT */ - 0x1902: 1,
    // 0x1906 /* GL_ALPHA */ - 0x1902: 1,
    5: 3,
    6: 4,
    // 0x1909 /* GL_LUMINANCE */ - 0x1902: 1,
    8: 2,
    29502: 3,
    29504: 4,
  };
  return colorChannels[format - 0x1902] || 1;
};

var heapObjectForWebGLType = (type) => {
  // Micro-optimization for size: Subtract lowest GL enum number (0x1400/* GL_BYTE */) from type to compare
  // smaller values for the heap, for shorter generated code size.
  // Also the type HEAPU16 is not tested for explicitly, but any unrecognized type will return out HEAPU16.
  // (since most types are HEAPU16)
  type -= 0x1400;

  if (type == 1) return HEAPU8;

  if (type == 4) return HEAP32;

  if (type == 6) return HEAPF32;

  if (type == 5 || type == 28922) return HEAPU32;

  return HEAPU16;
};

var toTypedArrayIndex = (pointer, heap) =>
  pointer >>> (31 - Math.clz32(heap.BYTES_PER_ELEMENT));

var emscriptenWebGLGetTexPixelData = (
  type,
  format,
  width,
  height,
  pixels,
  internalFormat
) => {
  var heap = heapObjectForWebGLType(type);
  var sizePerPixel =
    colorChannelsInGlTextureFormat(format) * heap.BYTES_PER_ELEMENT;
  var bytes = computeUnpackAlignedImageSize(width, height, sizePerPixel);
  return heap.subarray(
    toTypedArrayIndex(pixels, heap),
    toTypedArrayIndex(pixels + bytes, heap)
  );
};

var _emscripten_glReadPixels = (x, y, width, height, format, type, pixels) => {
  var pixelData = emscriptenWebGLGetTexPixelData(
    type,
    format,
    width,
    height,
    pixels,
    format
  );
  if (!pixelData) {
    GL.recordError(0x500 /*GL_INVALID_ENUM*/);
    return;
  }
  GLctx.readPixels(x, y, width, height, format, type, pixelData);
};

var _emscripten_glReleaseShaderCompiler = () => {
  // NOP (as allowed by GLES 2.0 spec)
};

var _emscripten_glRenderbufferStorage = (x0, x1, x2, x3) =>
  GLctx.renderbufferStorage(x0, x1, x2, x3);

var _emscripten_glSampleCoverage = (value, invert) => {
  GLctx.sampleCoverage(value, !!invert);
};

var _emscripten_glScissor = (x0, x1, x2, x3) => GLctx.scissor(x0, x1, x2, x3);

var _emscripten_glShaderBinary = (
  count,
  shaders,
  binaryformat,
  binary,
  length
) => {
  GL.recordError(0x500 /*GL_INVALID_ENUM*/);
};

var _emscripten_glShaderSource = (shader, count, string, length) => {
  var source = GL.getSource(shader, count, string, length);

  GLctx.shaderSource(GL.shaders[shader], source);
};

var _emscripten_glStencilFunc = (x0, x1, x2) => GLctx.stencilFunc(x0, x1, x2);

var _emscripten_glStencilFuncSeparate = (x0, x1, x2, x3) =>
  GLctx.stencilFuncSeparate(x0, x1, x2, x3);

var _emscripten_glStencilMask = (x0) => GLctx.stencilMask(x0);

var _emscripten_glStencilMaskSeparate = (x0, x1) =>
  GLctx.stencilMaskSeparate(x0, x1);

var _emscripten_glStencilOp = (x0, x1, x2) => GLctx.stencilOp(x0, x1, x2);

var _emscripten_glStencilOpSeparate = (x0, x1, x2, x3) =>
  GLctx.stencilOpSeparate(x0, x1, x2, x3);

var _emscripten_glTexImage2D = (
  target,
  level,
  internalFormat,
  width,
  height,
  border,
  format,
  type,
  pixels
) => {
  var pixelData = pixels
    ? emscriptenWebGLGetTexPixelData(
        type,
        format,
        width,
        height,
        pixels,
        internalFormat
      )
    : null;
  GLctx.texImage2D(
    target,
    level,
    internalFormat,
    width,
    height,
    border,
    format,
    type,
    pixelData
  );
};

var _emscripten_glTexParameterf = (x0, x1, x2) =>
  GLctx.texParameterf(x0, x1, x2);

var _emscripten_glTexParameterfv = (target, pname, params) => {
  var param = HEAPF32[params >> 2];
  GLctx.texParameterf(target, pname, param);
};

var _emscripten_glTexParameteri = (x0, x1, x2) =>
  GLctx.texParameteri(x0, x1, x2);

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

var _emscripten_glTexSubImage2D = (
  target,
  level,
  xoffset,
  yoffset,
  width,
  height,
  format,
  type,
  pixels
) => {
  var pixelData = pixels
    ? emscriptenWebGLGetTexPixelData(type, format, width, height, pixels, 0)
    : null;
  GLctx.texSubImage2D(
    target,
    level,
    xoffset,
    yoffset,
    width,
    height,
    format,
    type,
    pixelData
  );
};

var _emscripten_glUniform1f = (location, v0) => {
  GLctx.uniform1f(webglGetUniformLocation(location), v0);
};

var miniTempWebGLFloatBuffers = [];

var _emscripten_glUniform1fv = (location, count, value) => {
  if (count <= 288) {
    // avoid allocation when uploading few enough uniforms
    var view = miniTempWebGLFloatBuffers[count];
    for (var i = 0; i < count; ++i) {
      view[i] = HEAPF32[(value + 4 * i) >> 2];
    }
  } else {
    var view = HEAPF32.subarray(value >> 2, (value + count * 4) >> 2);
  }
  GLctx.uniform1fv(webglGetUniformLocation(location), view);
};

var _emscripten_glUniform1i = (location, v0) => {
  GLctx.uniform1i(webglGetUniformLocation(location), v0);
};

var miniTempWebGLIntBuffers = [];

var _emscripten_glUniform1iv = (location, count, value) => {
  if (count <= 288) {
    // avoid allocation when uploading few enough uniforms
    var view = miniTempWebGLIntBuffers[count];
    for (var i = 0; i < count; ++i) {
      view[i] = HEAP32[(value + 4 * i) >> 2];
    }
  } else {
    var view = HEAP32.subarray(value >> 2, (value + count * 4) >> 2);
  }
  GLctx.uniform1iv(webglGetUniformLocation(location), view);
};

var _emscripten_glUniform2f = (location, v0, v1) => {
  GLctx.uniform2f(webglGetUniformLocation(location), v0, v1);
};

var _emscripten_glUniform2fv = (location, count, value) => {
  if (count <= 144) {
    // avoid allocation when uploading few enough uniforms
    count *= 2;
    var view = miniTempWebGLFloatBuffers[count];
    for (var i = 0; i < count; i += 2) {
      view[i] = HEAPF32[(value + 4 * i) >> 2];
      view[i + 1] = HEAPF32[(value + (4 * i + 4)) >> 2];
    }
  } else {
    var view = HEAPF32.subarray(value >> 2, (value + count * 8) >> 2);
  }
  GLctx.uniform2fv(webglGetUniformLocation(location), view);
};

var _emscripten_glUniform2i = (location, v0, v1) => {
  GLctx.uniform2i(webglGetUniformLocation(location), v0, v1);
};

var _emscripten_glUniform2iv = (location, count, value) => {
  if (count <= 144) {
    // avoid allocation when uploading few enough uniforms
    count *= 2;
    var view = miniTempWebGLIntBuffers[count];
    for (var i = 0; i < count; i += 2) {
      view[i] = HEAP32[(value + 4 * i) >> 2];
      view[i + 1] = HEAP32[(value + (4 * i + 4)) >> 2];
    }
  } else {
    var view = HEAP32.subarray(value >> 2, (value + count * 8) >> 2);
  }
  GLctx.uniform2iv(webglGetUniformLocation(location), view);
};

var _emscripten_glUniform3f = (location, v0, v1, v2) => {
  GLctx.uniform3f(webglGetUniformLocation(location), v0, v1, v2);
};

var _emscripten_glUniform3fv = (location, count, value) => {
  if (count <= 96) {
    // avoid allocation when uploading few enough uniforms
    count *= 3;
    var view = miniTempWebGLFloatBuffers[count];
    for (var i = 0; i < 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);
};

var _emscripten_glUniform3i = (location, v0, v1, v2) => {
  GLctx.uniform3i(webglGetUniformLocation(location), v0, v1, v2);
};

var _emscripten_glUniform3iv = (location, count, value) => {
  if (count <= 96) {
    // avoid allocation when uploading few enough uniforms
    count *= 3;
    var view = miniTempWebGLIntBuffers[count];
    for (var i = 0; i < count; i += 3) {
      view[i] = HEAP32[(value + 4 * i) >> 2];
      view[i + 1] = HEAP32[(value + (4 * i + 4)) >> 2];
      view[i + 2] = HEAP32[(value + (4 * i + 8)) >> 2];
    }
  } else {
    var view = HEAP32.subarray(value >> 2, (value + count * 12) >> 2);
  }
  GLctx.uniform3iv(webglGetUniformLocation(location), view);
};

var _emscripten_glUniform4f = (location, v0, v1, v2, v3) => {
  GLctx.uniform4f(webglGetUniformLocation(location), v0, v1, v2, v3);
};

var _emscripten_glUniform4fv = (location, count, value) => {
  if (count <= 72) {
    // avoid allocation when uploading few enough uniforms
    var view = miniTempWebGLFloatBuffers[4 * count];
    // hoist the heap out of the loop for size and for pthreads+growth.
    var heap = HEAPF32;
    value = value >> 2;
    count *= 4;
    for (var i = 0; i < count; i += 4) {
      var dst = value + i;
      view[i] = heap[dst];
      view[i + 1] = heap[dst + 1];
      view[i + 2] = heap[dst + 2];
      view[i + 3] = heap[dst + 3];
    }
  } else {
    var view = HEAPF32.subarray(value >> 2, (value + count * 16) >> 2);
  }
  GLctx.uniform4fv(webglGetUniformLocation(location), view);
};

var _emscripten_glUniform4i = (location, v0, v1, v2, v3) => {
  GLctx.uniform4i(webglGetUniformLocation(location), v0, v1, v2, v3);
};

var _emscripten_glUniform4iv = (location, count, value) => {
  if (count <= 72) {
    // avoid allocation when uploading few enough uniforms
    count *= 4;
    var view = miniTempWebGLIntBuffers[count];
    for (var i = 0; i < count; i += 4) {
      view[i] = HEAP32[(value + 4 * i) >> 2];
      view[i + 1] = HEAP32[(value + (4 * i + 4)) >> 2];
      view[i + 2] = HEAP32[(value + (4 * i + 8)) >> 2];
      view[i + 3] = HEAP32[(value + (4 * i + 12)) >> 2];
    }
  } else {
    var view = HEAP32.subarray(value >> 2, (value + count * 16) >> 2);
  }
  GLctx.uniform4iv(webglGetUniformLocation(location), view);
};

var _emscripten_glUniformMatrix2fv = (location, count, transpose, value) => {
  if (count <= 72) {
    // avoid allocation when uploading few enough uniforms
    count *= 4;
    var view = miniTempWebGLFloatBuffers[count];
    for (var i = 0; i < count; i += 4) {
      view[i] = HEAPF32[(value + 4 * i) >> 2];
      view[i + 1] = HEAPF32[(value + (4 * i + 4)) >> 2];
      view[i + 2] = HEAPF32[(value + (4 * i + 8)) >> 2];
      view[i + 3] = HEAPF32[(value + (4 * i + 12)) >> 2];
    }
  } else {
    var view = HEAPF32.subarray(value >> 2, (value + count * 16) >> 2);
  }
  GLctx.uniformMatrix2fv(webglGetUniformLocation(location), !!transpose, view);
};

var _emscripten_glUniformMatrix3fv = (location, count, transpose, value) => {
  if (count <= 32) {
    // avoid allocation when uploading few enough uniforms
    count *= 9;
    var view = miniTempWebGLFloatBuffers[count];
    for (var i = 0; i < count; i += 9) {
      view[i] = HEAPF32[(value + 4 * i) >> 2];
      view[i + 1] = HEAPF32[(value + (4 * i + 4)) >> 2];
      view[i + 2] = HEAPF32[(value + (4 * i + 8)) >> 2];
      view[i + 3] = HEAPF32[(value + (4 * i + 12)) >> 2];
      view[i + 4] = HEAPF32[(value + (4 * i + 16)) >> 2];
      view[i + 5] = HEAPF32[(value + (4 * i + 20)) >> 2];
      view[i + 6] = HEAPF32[(value + (4 * i + 24)) >> 2];
      view[i + 7] = HEAPF32[(value + (4 * i + 28)) >> 2];
      view[i + 8] = HEAPF32[(value + (4 * i + 32)) >> 2];
    }
  } else {
    var view = HEAPF32.subarray(value >> 2, (value + count * 36) >> 2);
  }
  GLctx.uniformMatrix3fv(webglGetUniformLocation(location), !!transpose, view);
};

var _emscripten_glUniformMatrix4fv = (location, count, transpose, value) => {
  if (count <= 18) {
    // avoid allocation when uploading few enough uniforms
    var view = miniTempWebGLFloatBuffers[16 * count];
    // hoist the heap out of the loop for size and for pthreads+growth.
    var heap = HEAPF32;
    value = value >> 2;
    count *= 16;
    for (var i = 0; i < 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);
};

var _emscripten_glUseProgram = (program) => {
  program = GL.programs[program];
  GLctx.useProgram(program);
  // Record the currently active program so that we can access the uniform
  // mapping table of that program.
  GLctx.currentProgram = program;
};

var _emscripten_glValidateProgram = (program) => {
  GLctx.validateProgram(GL.programs[program]);
};

var _emscripten_glVertexAttrib1f = (x0, x1) => GLctx.vertexAttrib1f(x0, x1);

var _emscripten_glVertexAttrib1fv = (index, v) => {
  GLctx.vertexAttrib1f(index, HEAPF32[v >> 2]);
};

var _emscripten_glVertexAttrib2f = (x0, x1, x2) =>
  GLctx.vertexAttrib2f(x0, x1, x2);

var _emscripten_glVertexAttrib2fv = (index, v) => {
  GLctx.vertexAttrib2f(index, HEAPF32[v >> 2], HEAPF32[(v + 4) >> 2]);
};

var _emscripten_glVertexAttrib3f = (x0, x1, x2, x3) =>
  GLctx.vertexAttrib3f(x0, x1, x2, x3);

var _emscripten_glVertexAttrib3fv = (index, v) => {
  GLctx.vertexAttrib3f(
    index,
    HEAPF32[v >> 2],
    HEAPF32[(v + 4) >> 2],
    HEAPF32[(v + 8) >> 2]
  );
};

var _emscripten_glVertexAttrib4f = (x0, x1, x2, x3, x4) =>
  GLctx.vertexAttrib4f(x0, x1, x2, x3, x4);

var _emscripten_glVertexAttrib4fv = (index, v) => {
  GLctx.vertexAttrib4f(
    index,
    HEAPF32[v >> 2],
    HEAPF32[(v + 4) >> 2],
    HEAPF32[(v + 8) >> 2],
    HEAPF32[(v + 12) >> 2]
  );
};

var _emscripten_glVertexAttribDivisor = (index, divisor) => {
  GLctx.vertexAttribDivisor(index, divisor);
};
var _glVertexAttribDivisor = _emscripten_glVertexAttribDivisor;
var _emscripten_glVertexAttribDivisorANGLE = _glVertexAttribDivisor;

var _emscripten_glVertexAttribPointer = (
  index,
  size,
  type,
  normalized,
  stride,
  ptr
) => {
  GLctx.vertexAttribPointer(index, size, type, !!normalized, stride, ptr);
};

var _emscripten_glViewport = (x0, x1, x2, x3) => GLctx.viewport(x0, x1, x2, x3);

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

var alignMemory = (size, alignment) => {
  assert(alignment, 'alignment argument is required');
  return Math.ceil(size / alignment) * alignment;
};

var growMemory = (size) => {
  var oldHeapSize = wasmMemory.buffer.byteLength;
  var pages = ((size - oldHeapSize + 65535) / 65536) | 0;
  try {
    // round size grow request up to wasm page size (fixed 64KB per spec)
    wasmMemory.grow(pages); // .grow() takes a delta compared to the previous size
    updateMemoryViews();
    return 1 /*success*/;
  } catch (e) {
    err(
      `growMemory: Attempted to grow heap from ${oldHeapSize} bytes to ${size} bytes, but got error: ${e}`
    );
  }
  // implicit 0 return to save code size (caller will cast "undefined" into 0
  // anyhow)
};
var _emscripten_resize_heap = (requestedSize) => {
  var oldSize = HEAPU8.length;
  // With CAN_ADDRESS_2GB or MEMORY64, pointers are already unsigned.
  requestedSize >>>= 0;
  // With multithreaded builds, races can happen (another thread might increase the size
  // in between), so return a failure, and let the caller retry.
  assert(requestedSize > oldSize);

  // Memory resize rules:
  // 1.  Always increase heap size to at least the requested size, rounded up
  //     to next page multiple.
  // 2a. If MEMORY_GROWTH_LINEAR_STEP == -1, excessively resize the heap
  //     geometrically: increase the heap size according to
  //     MEMORY_GROWTH_GEOMETRIC_STEP factor (default +20%), At most
  //     overreserve by MEMORY_GROWTH_GEOMETRIC_CAP bytes (default 96MB).
  // 2b. If MEMORY_GROWTH_LINEAR_STEP != -1, excessively resize the heap
  //     linearly: increase the heap size by at least
  //     MEMORY_GROWTH_LINEAR_STEP bytes.
  // 3.  Max size for the heap is capped at 2048MB-WASM_PAGE_SIZE, or by
  //     MAXIMUM_MEMORY, or by ASAN limit, depending on which is smallest
  // 4.  If we were unable to allocate as much memory, it may be due to
  //     over-eager decision to excessively reserve due to (3) above.
  //     Hence if an allocation fails, cut down on the amount of excess
  //     growth, in an attempt to succeed to perform a smaller allocation.

  // A limit is set for how much we can grow. We should not exceed that
  // (the wasm binary specifies it, so if we tried, we'd fail anyhow).
  var maxHeapSize = getHeapMax();
  if (requestedSize > maxHeapSize) {
    err(
      `Cannot enlarge memory, requested ${requestedSize} bytes, but the limit is ${maxHeapSize} bytes!`
    );
    return false;
  }

  // Loop through potential heap size increases. If we attempt a too eager
  // reservation that fails, cut down on the attempted size and reserve a
  // smaller bump instead. (max 3 times, chosen somewhat arbitrarily)
  for (var cutDown = 1; cutDown <= 4; cutDown *= 2) {
    var overGrownHeapSize = oldSize * (1 + 0.2 / cutDown); // ensure geometric growth
    // but limit overreserving (default to capping at +96MB overgrowth at most)
    overGrownHeapSize = Math.min(overGrownHeapSize, requestedSize + 100663296);

    var newSize = Math.min(
      maxHeapSize,
      alignMemory(Math.max(requestedSize, overGrownHeapSize), 65536)
    );

    var replacement = growMemory(newSize);
    if (replacement) {
      return true;
    }
  }
  err(
    `Failed to grow the heap from ${oldSize} bytes to ${newSize} bytes, not enough memory!`
  );
  return false;
};

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

var wasmTableMirror = [];

var getWasmTableEntry = (funcPtr) => {
  var func = wasmTableMirror[funcPtr];
  if (!func) {
    /** @suppress {checkTypes} */
    wasmTableMirror[funcPtr] = func = wasmTable.get(funcPtr);
  }
  /** @suppress {checkTypes} */
  assert(
    wasmTable.get(funcPtr) == func,
    'JavaScript-side Wasm function table mirror is out of date!'
  );
  return func;
};
var registerFocusEventCallback = (
  target,
  userData,
  useCapture,
  callbackfunc,
  eventTypeId,
  eventTypeString,
  targetThread
) => {
  var eventSize = 256;
  JSEvents.focusEvent ||= _malloc(eventSize);

  var focusEventHandlerFunc = (e) => {
    var nodeName = JSEvents.getNodeNameForTarget(e.target);
    var id = e.target.id ? e.target.id : '';

    var focusEvent = JSEvents.focusEvent;
    stringToUTF8(nodeName, focusEvent + 0, 128);
    stringToUTF8(id, focusEvent + 128, 128);

    if (getWasmTableEntry(callbackfunc)(eventTypeId, focusEvent, userData))
      e.preventDefault();
  };

  var eventHandler = {
    target: findEventTarget(target),
    eventTypeString,
    eventTypeId,
    userData,
    callbackfunc,
    handlerFunc: focusEventHandlerFunc,
    useCapture,
  };
  return JSEvents.registerOrRemoveHandler(eventHandler);
};
var _emscripten_set_blur_callback_on_thread = (
  target,
  userData,
  useCapture,
  callbackfunc,
  targetThread
) =>
  registerFocusEventCallback(
    target,
    userData,
    useCapture,
    callbackfunc,
    12,
    'blur',
    targetThread
  );

var findCanvasEventTarget = findEventTarget;
var _emscripten_set_canvas_element_size = (target, width, height) => {
  var canvas = findCanvasEventTarget(target);
  if (!canvas) return -4;
  canvas.width = width;
  canvas.height = height;
  return 0;
};

var fillMouseEventData = (eventStruct, e, target) => {
  assert(eventStruct % 4 == 0);
  HEAPF64[eventStruct >> 3] = e.timeStamp;
  var idx = eventStruct >> 2;
  HEAP32[idx + 2] = e.screenX;
  HEAP32[idx + 3] = e.screenY;
  HEAP32[idx + 4] = e.clientX;
  HEAP32[idx + 5] = e.clientY;
  HEAP8[eventStruct + 24] = e.ctrlKey;
  HEAP8[eventStruct + 25] = e.shiftKey;
  HEAP8[eventStruct + 26] = e.altKey;
  HEAP8[eventStruct + 27] = e.metaKey;
  HEAP16[idx * 2 + 14] = e.button;
  HEAP16[idx * 2 + 15] = e.buttons;

  HEAP32[idx + 8] = e['movementX'];

  HEAP32[idx + 9] = e['movementY'];

  // Note: rect contains doubles (truncated to placate SAFE_HEAP, which is the same behaviour when writing to HEAP32 anyway)
  var rect = getBoundingClientRect(target);
  HEAP32[idx + 10] = e.clientX - (rect.left | 0);
  HEAP32[idx + 11] = e.clientY - (rect.top | 0);
};

var registerMouseEventCallback = (
  target,
  userData,
  useCapture,
  callbackfunc,
  eventTypeId,
  eventTypeString,
  targetThread
) => {
  var eventSize = 64;
  JSEvents.mouseEvent ||= _malloc(eventSize);
  target = findEventTarget(target);

  var mouseEventHandlerFunc = (e) => {
    // TODO: Make this access thread safe, or this could update live while app is reading it.
    fillMouseEventData(JSEvents.mouseEvent, e, target);

    if (
      getWasmTableEntry(callbackfunc)(
        eventTypeId,
        JSEvents.mouseEvent,
        userData
      )
    )
      e.preventDefault();
  };

  var eventHandler = {
    target,
    allowsDeferredCalls:
      eventTypeString != 'mousemove' &&
      eventTypeString != 'mouseenter' &&
      eventTypeString != 'mouseleave', // Mouse move events do not allow fullscreen/pointer lock requests to be handled in them!
    eventTypeString,
    eventTypeId,
    userData,
    callbackfunc,
    handlerFunc: mouseEventHandlerFunc,
    useCapture,
  };
  return JSEvents.registerOrRemoveHandler(eventHandler);
};
var _emscripten_set_click_callback_on_thread = (
  target,
  userData,
  useCapture,
  callbackfunc,
  targetThread
) =>
  registerMouseEventCallback(
    target,
    userData,
    useCapture,
    callbackfunc,
    4,
    'click',
    targetThread
  );

var _emscripten_set_focus_callback_on_thread = (
  target,
  userData,
  useCapture,
  callbackfunc,
  targetThread
) =>
  registerFocusEventCallback(
    target,
    userData,
    useCapture,
    callbackfunc,
    13,
    'focus',
    targetThread
  );

function getFullscreenElement() {
  return (
    document.fullscreenElement ||
    document.mozFullScreenElement ||
    document.webkitFullscreenElement ||
    document.webkitCurrentFullScreenElement ||
    document.msFullscreenElement
  );
}
var fillFullscreenChangeEventData = (eventStruct) => {
  var fullscreenElement = getFullscreenElement();
  var isFullscreen = !!fullscreenElement;
  // Assigning a boolean to HEAP32 with expected type coercion.
  /** @suppress{checkTypes} */
  HEAP8[eventStruct] = isFullscreen;
  HEAP8[eventStruct + 1] = JSEvents.fullscreenEnabled();
  // If transitioning to fullscreen, report info about the element that is now fullscreen.
  // If transitioning to windowed mode, report info about the element that just was fullscreen.
  var reportedElement = isFullscreen
    ? fullscreenElement
    : JSEvents.previousFullscreenElement;
  var nodeName = JSEvents.getNodeNameForTarget(reportedElement);
  var id = reportedElement?.id || '';
  stringToUTF8(nodeName, eventStruct + 2, 128);
  stringToUTF8(id, eventStruct + 130, 128);
  HEAP32[(eventStruct + 260) >> 2] = reportedElement
    ? reportedElement.clientWidth
    : 0;
  HEAP32[(eventStruct + 264) >> 2] = reportedElement
    ? reportedElement.clientHeight
    : 0;
  HEAP32[(eventStruct + 268) >> 2] = screen.width;
  HEAP32[(eventStruct + 272) >> 2] = screen.height;
  if (isFullscreen) {
    JSEvents.previousFullscreenElement = fullscreenElement;
  }
};

var registerFullscreenChangeEventCallback = (
  target,
  userData,
  useCapture,
  callbackfunc,
  eventTypeId,
  eventTypeString,
  targetThread
) => {
  var eventSize = 276;
  JSEvents.fullscreenChangeEvent ||= _malloc(eventSize);

  var fullscreenChangeEventHandlerFunc = (e) => {
    var fullscreenChangeEvent = JSEvents.fullscreenChangeEvent;
    fillFullscreenChangeEventData(fullscreenChangeEvent);

    if (
      getWasmTableEntry(callbackfunc)(
        eventTypeId,
        fullscreenChangeEvent,
        userData
      )
    )
      e.preventDefault();
  };

  var eventHandler = {
    target,
    eventTypeString,
    eventTypeId,
    userData,
    callbackfunc,
    handlerFunc: fullscreenChangeEventHandlerFunc,
    useCapture,
  };
  return JSEvents.registerOrRemoveHandler(eventHandler);
};

var _emscripten_set_fullscreenchange_callback_on_thread = (
  target,
  userData,
  useCapture,
  callbackfunc,
  targetThread
) => {
  if (!JSEvents.fullscreenEnabled()) return -1;
  target = findEventTarget(target);
  if (!target) return -4;

  // As of Safari 13.0.3 on macOS Catalina 10.15.1 still ships with prefixed webkitfullscreenchange. TODO: revisit this check once Safari ships unprefixed version.
  // TODO: When this block is removed, also change test/test_html5_remove_event_listener.c test expectation on emscripten_set_fullscreenchange_callback().
  registerFullscreenChangeEventCallback(
    target,
    userData,
    useCapture,
    callbackfunc,
    19,
    'webkitfullscreenchange',
    targetThread
  );

  return registerFullscreenChangeEventCallback(
    target,
    userData,
    useCapture,
    callbackfunc,
    19,
    'fullscreenchange',
    targetThread
  );
};

var registerGamepadEventCallback = (
  target,
  userData,
  useCapture,
  callbackfunc,
  eventTypeId,
  eventTypeString,
  targetThread
) => {
  var eventSize = 1240;
  JSEvents.gamepadEvent ||= _malloc(eventSize);

  var gamepadEventHandlerFunc = (e) => {
    var gamepadEvent = JSEvents.gamepadEvent;
    fillGamepadEventData(gamepadEvent, e['gamepad']);

    if (getWasmTableEntry(callbackfunc)(eventTypeId, gamepadEvent, userData))
      e.preventDefault();
  };

  var eventHandler = {
    target: findEventTarget(target),
    allowsDeferredCalls: true,
    eventTypeString,
    eventTypeId,
    userData,
    callbackfunc,
    handlerFunc: gamepadEventHandlerFunc,
    useCapture,
  };
  return JSEvents.registerOrRemoveHandler(eventHandler);
};

var _emscripten_set_gamepadconnected_callback_on_thread = (
  userData,
  useCapture,
  callbackfunc,
  targetThread
) => {
  if (_emscripten_sample_gamepad_data()) return -1;
  return registerGamepadEventCallback(
    2,
    userData,
    useCapture,
    callbackfunc,
    26,
    'gamepadconnected',
    targetThread
  );
};

var _emscripten_set_gamepaddisconnected_callback_on_thread = (
  userData,
  useCapture,
  callbackfunc,
  targetThread
) => {
  if (_emscripten_sample_gamepad_data()) return -1;
  return registerGamepadEventCallback(
    2,
    userData,
    useCapture,
    callbackfunc,
    27,
    'gamepaddisconnected',
    targetThread
  );
};

var handleException = (e) => {
  // Certain exception types we do not treat as errors since they are used for
  // internal control flow.
  // 1. ExitStatus, which is thrown by exit()
  // 2. "unwind", which is thrown by emscripten_unwind_to_js_event_loop() and others
  //    that wish to return to JS event loop.
  if (e instanceof ExitStatus || e == 'unwind') {
    return EXITSTATUS;
  }
  checkStackCookie();
  if (e instanceof WebAssembly.RuntimeError) {
    if (_emscripten_stack_get_current() <= 0) {
      err(
        'Stack overflow detected.  You can try increasing -sSTACK_SIZE (currently set to 65536)'
      );
    }
  }
  quit_(1, e);
};

var runtimeKeepaliveCounter = 0;
var keepRuntimeAlive = () => noExitRuntime || runtimeKeepaliveCounter > 0;
var _proc_exit = (code) => {
  EXITSTATUS = code;
  if (!keepRuntimeAlive()) {
    Module['onExit']?.(code);
    ABORT = true;
  }
  quit_(code, new ExitStatus(code));
};

/** @param {boolean|number=} implicit */
var exitJS = (status, implicit) => {
  EXITSTATUS = status;

  checkUnflushedContent();

  // if exit() was called explicitly, warn the user if the runtime isn't actually being shut down
  if (keepRuntimeAlive() && !implicit) {
    var msg = `program exited (with status: ${status}), but keepRuntimeAlive() is set (counter=${runtimeKeepaliveCounter}) due to an async operation, so halting execution but not exiting the runtime or preventing further async execution (you can use emscripten_force_exit, if you want to force a true shutdown)`;
    err(msg);
  }

  _proc_exit(status);
};
var _exit = exitJS;

var maybeExit = () => {
  if (!keepRuntimeAlive()) {
    try {
      _exit(EXITSTATUS);
    } catch (e) {
      handleException(e);
    }
  }
};
var callUserCallback = (func) => {
  if (ABORT) {
    err(
      'user callback triggered after runtime exited or application aborted.  Ignoring.'
    );
    return;
  }
  try {
    return func();
  } catch (e) {
    handleException(e);
  } finally {
    maybeExit();
  }
};

var _emscripten_set_main_loop_timing = (mode, value) => {
  MainLoop.timingMode = mode;
  MainLoop.timingValue = value;

  if (!MainLoop.func) {
    err(
      'emscripten_set_main_loop_timing: Cannot set timing mode for main loop since a main loop does not exist! Call emscripten_set_main_loop first to set one up.'
    );
    return 1; // Return non-zero on failure, can't set timing mode when there is no main loop.
  }

  if (!MainLoop.running) {
    MainLoop.running = true;
  }
  if (mode == 0) {
    MainLoop.scheduler = function MainLoop_scheduler_setTimeout() {
      var timeUntilNextTick =
        Math.max(0, MainLoop.tickStartTime + value - _emscripten_get_now()) | 0;
      setTimeout(MainLoop.runner, timeUntilNextTick); // doing this each time means that on exception, we stop
    };
  } else if (mode == 1) {
    MainLoop.scheduler = function MainLoop_scheduler_rAF() {
      MainLoop.requestAnimationFrame(MainLoop.runner);
    };
  } else {
    assert(mode == 2);
    if (!MainLoop.setImmediate) {
      if (globalThis.setImmediate) {
        MainLoop.setImmediate = setImmediate;
      } else {
        // Emulate setImmediate. (note: not a complete polyfill, we don't emulate clearImmediate() to keep code size to minimum, since not needed)
        var setImmediates = [];
        var emscriptenMainLoopMessageId = 'setimmediate';
        /** @param {Event} event */
        var MainLoop_setImmediate_messageHandler = (event) => {
          // When called in current thread or Worker, the main loop ID is structured slightly different to accommodate for --proxy-to-worker runtime listening to Worker events,
          // so check for both cases.
          if (
            event.data === emscriptenMainLoopMessageId ||
            event.data.target === emscriptenMainLoopMessageId
          ) {
            event.stopPropagation();
            setImmediates.shift()();
          }
        };
        addEventListener('message', MainLoop_setImmediate_messageHandler, true);
        MainLoop.setImmediate =
          /** @type{function(function(): ?, ...?): number} */ (
            (func) => {
              setImmediates.push(func);
              if (ENVIRONMENT_IS_WORKER) {
                Module['setImmediates'] ??= [];
                Module['setImmediates'].push(func);
                postMessage({ target: emscriptenMainLoopMessageId }); // In --proxy-to-worker, route the message via proxyClient.js
              } else postMessage(emscriptenMainLoopMessageId, '*'); // On the main thread, can just send the message to itself.
            }
          );
      }
    }
    MainLoop.scheduler = function MainLoop_scheduler_setImmediate() {
      MainLoop.setImmediate(MainLoop.runner);
    };
  }
  return 0;
};
var MainLoop = {
  running: false,
  scheduler: null,
  currentlyRunningMainloop: 0,
  func: null,
  arg: 0,
  timingMode: 0,
  timingValue: 0,
  currentFrameNumber: 0,
  queue: [],
  preMainLoop: [],
  postMainLoop: [],
  pause() {
    MainLoop.scheduler = null;
    // Incrementing this signals the previous main loop that it's now become old, and it must return.
    MainLoop.currentlyRunningMainloop++;
  },
  resume() {
    MainLoop.currentlyRunningMainloop++;
    var timingMode = MainLoop.timingMode;
    var timingValue = MainLoop.timingValue;
    var func = MainLoop.func;
    MainLoop.func = null;
    // do not set timing and call scheduler, we will do it on the next lines
    setMainLoop(func, 0, false, MainLoop.arg, true);
    _emscripten_set_main_loop_timing(timingMode, timingValue);
    MainLoop.scheduler();
  },
  updateStatus() {
    if (Module['setStatus']) {
      var message = Module['statusMessage'] || 'Please wait...';
      var remaining = MainLoop.remainingBlockers ?? 0;
      var expected = MainLoop.expectedBlockers ?? 0;
      if (remaining) {
        if (remaining < expected) {
          Module['setStatus'](`{message} ({expected - remaining}/{expected})`);
        } else {
          Module['setStatus'](message);
        }
      } else {
        Module['setStatus']('');
      }
    }
  },
  init() {
    Module['preMainLoop'] && MainLoop.preMainLoop.push(Module['preMainLoop']);
    Module['postMainLoop'] &&
      MainLoop.postMainLoop.push(Module['postMainLoop']);
  },
  runIter(func) {
    if (ABORT) return;
    for (var pre of MainLoop.preMainLoop) {
      if (pre() === false) {
        return; // |return false| skips a frame
      }
    }
    callUserCallback(func);
    for (var post of MainLoop.postMainLoop) {
      post();
    }
    checkStackCookie();
  },
  nextRAF: 0,
  fakeRequestAnimationFrame(func) {
    // try to keep 60fps between calls to here
    var now = Date.now();
    if (MainLoop.nextRAF === 0) {
      MainLoop.nextRAF = now + 1000 / 60;
    } else {
      while (now + 2 >= MainLoop.nextRAF) {
        // fudge a little, to avoid timer jitter causing us to do lots of delay:0
        MainLoop.nextRAF += 1000 / 60;
      }
    }
    var delay = Math.max(MainLoop.nextRAF - now, 0);
    setTimeout(func, delay);
  },
  requestAnimationFrame(func) {
    if (globalThis.requestAnimationFrame) {
      requestAnimationFrame(func);
    } else {
      MainLoop.fakeRequestAnimationFrame(func);
    }
  },
};

/**
 * @param {number=} arg
 * @param {boolean=} noSetTiming
 */
var setMainLoop = (iterFunc, fps, simulateInfiniteLoop, arg, noSetTiming) => {
  assert(
    !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.'
  );
  MainLoop.func = iterFunc;
  MainLoop.arg = arg;

  var thisMainLoopId = MainLoop.currentlyRunningMainloop;
  function checkIsRunning() {
    if (thisMainLoopId < MainLoop.currentlyRunningMainloop) {
      maybeExit();
      return false;
    }
    return true;
  }

  // We create the loop runner here but it is not actually running until
  // _emscripten_set_main_loop_timing is called (which might happen at a
  // later time).  This member signifies that the current runner has not
  // yet been started so that we can call runtimeKeepalivePush when it
  // gets its timing set for the first time.
  MainLoop.running = false;
  MainLoop.runner = function MainLoop_runner() {
    if (ABORT) return;
    if (MainLoop.queue.length > 0) {
      var start = Date.now();
      var blocker = MainLoop.queue.shift();
      blocker.func(blocker.arg);
      if (MainLoop.remainingBlockers) {
        var remaining = MainLoop.remainingBlockers;
        var next = remaining % 1 == 0 ? remaining - 1 : Math.floor(remaining);
        if (blocker.counted) {
          MainLoop.remainingBlockers = next;
        } else {
          // not counted, but move the progress along a tiny bit
          next = next + 0.5; // do not steal all the next one's progress
          MainLoop.remainingBlockers = (8 * remaining + next) / 9;
        }
      }
      MainLoop.updateStatus();

      // catches pause/resume main loop from blocker execution
      if (!checkIsRunning()) return;

      setTimeout(MainLoop.runner, 0);
      return;
    }

    // catch pauses from non-main loop sources
    if (!checkIsRunning()) return;

    // Implement very basic swap interval control
    MainLoop.currentFrameNumber = (MainLoop.currentFrameNumber + 1) | 0;
    if (
      MainLoop.timingMode == 1 &&
      MainLoop.timingValue > 1 &&
      MainLoop.currentFrameNumber % MainLoop.timingValue != 0
    ) {
      // Not the scheduled time to render this frame - skip.
      MainLoop.scheduler();
      return;
    } else if (MainLoop.timingMode == 0) {
      MainLoop.tickStartTime = _emscripten_get_now();
      if (Module['ctx']) {
        warnOnce(
          'Looks like you are rendering without using requestAnimationFrame for the main loop. You should use 0 for the frame rate in emscripten_set_main_loop in order to use requestAnimationFrame, as that can greatly improve your frame rates!'
        );
      }
    }

    MainLoop.runIter(iterFunc);

    // catch pauses from the main loop itself
    if (!checkIsRunning()) return;

    MainLoop.scheduler();
  };

  if (!noSetTiming) {
    if (fps > 0) {
      _emscripten_set_main_loop_timing(0, 1000.0 / fps);
    } else {
      // Do rAF by rendering each frame (no decimating)
      _emscripten_set_main_loop_timing(1, 1);
    }

    MainLoop.scheduler();
  }

  if (simulateInfiniteLoop) {
    throw 'unwind';
  }
};

var _emscripten_set_main_loop = (func, fps, simulateInfiniteLoop) => {
  var iterFunc = getWasmTableEntry(func);
  setMainLoop(iterFunc, fps, simulateInfiniteLoop);
};

var _emscripten_set_mousemove_callback_on_thread = (
  target,
  userData,
  useCapture,
  callbackfunc,
  targetThread
) =>
  registerMouseEventCallback(
    target,
    userData,
    useCapture,
    callbackfunc,
    8,
    'mousemove',
    targetThread
  );

var fillPointerlockChangeEventData = (eventStruct) => {
  var pointerLockElement = document.pointerLockElement;
  var isPointerlocked = !!pointerLockElement;
  // Assigning a boolean to HEAP32 with expected type coercion.
  /** @suppress{checkTypes} */
  HEAP8[eventStruct] = isPointerlocked;
  var nodeName = JSEvents.getNodeNameForTarget(pointerLockElement);
  var id = pointerLockElement?.id || '';
  stringToUTF8(nodeName, eventStruct + 1, 128);
  stringToUTF8(id, eventStruct + 129, 128);
};

var registerPointerlockChangeEventCallback = (
  target,
  userData,
  useCapture,
  callbackfunc,
  eventTypeId,
  eventTypeString,
  targetThread
) => {
  var eventSize = 257;
  JSEvents.pointerlockChangeEvent ||= _malloc(eventSize);

  var pointerlockChangeEventHandlerFunc = (e) => {
    var pointerlockChangeEvent = JSEvents.pointerlockChangeEvent;
    fillPointerlockChangeEventData(pointerlockChangeEvent);

    if (
      getWasmTableEntry(callbackfunc)(
        eventTypeId,
        pointerlockChangeEvent,
        userData
      )
    )
      e.preventDefault();
  };

  var eventHandler = {
    target,
    eventTypeString,
    eventTypeId,
    userData,
    callbackfunc,
    handlerFunc: pointerlockChangeEventHandlerFunc,
    useCapture,
  };
  return JSEvents.registerOrRemoveHandler(eventHandler);
};

var _emscripten_set_pointerlockchange_callback_on_thread = (
  target,
  userData,
  useCapture,
  callbackfunc,
  targetThread
) => {
  if (!document.body?.requestPointerLock) {
    return -1;
  }

  target = findEventTarget(target);
  if (!target) return -4;
  return registerPointerlockChangeEventCallback(
    target,
    userData,
    useCapture,
    callbackfunc,
    20,
    'pointerlockchange',
    targetThread
  );
};

var registerUiEventCallback = (
  target,
  userData,
  useCapture,
  callbackfunc,
  eventTypeId,
  eventTypeString,
  targetThread
) => {
  var eventSize = 36;
  JSEvents.uiEvent ||= _malloc(eventSize);

  target = findEventTarget(target);

  var uiEventHandlerFunc = (e) => {
    if (e.target != target) {
      // Never take ui events such as scroll via a 'bubbled' route, but always from the direct element that
      // was targeted. Otherwise e.g. if app logs a message in response to a page scroll, the Emscripten log
      // message box could cause to scroll, generating a new (bubbled) scroll message, causing a new log print,
      // causing a new scroll, etc..
      return;
    }
    var b = document.body; // Take document.body to a variable, Closure compiler does not outline access to it on its own.
    if (!b) {
      // During a page unload 'body' can be null, with "Cannot read property 'clientWidth' of null" being thrown
      return;
    }
    var uiEvent = JSEvents.uiEvent;
    HEAP32[uiEvent >> 2] = 0; // always zero for resize and scroll
    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 | 0; // scroll offsets are float
    HEAP32[(uiEvent + 32) >> 2] = pageYOffset | 0;
    if (getWasmTableEntry(callbackfunc)(eventTypeId, uiEvent, userData))
      e.preventDefault();
  };

  var eventHandler = {
    target,
    eventTypeString,
    eventTypeId,
    userData,
    callbackfunc,
    handlerFunc: uiEventHandlerFunc,
    useCapture,
  };
  return JSEvents.registerOrRemoveHandler(eventHandler);
};
var _emscripten_set_resize_callback_on_thread = (
  target,
  userData,
  useCapture,
  callbackfunc,
  targetThread
) =>
  registerUiEventCallback(
    target,
    userData,
    useCapture,
    callbackfunc,
    10,
    'resize',
    targetThread
  );

var registerTouchEventCallback = (
  target,
  userData,
  useCapture,
  callbackfunc,
  eventTypeId,
  eventTypeString,
  targetThread
) => {
  var eventSize = 1552;
  JSEvents.touchEvent ||= _malloc(eventSize);

  target = findEventTarget(target);

  var touchEventHandlerFunc = (e) => {
    assert(e);
    var t,
      touches = {},
      et = e.touches;
    // To ease marshalling different kinds of touches that browser reports (all touches are listed in e.touches,
    // only changed touches in e.changedTouches, and touches on target at a.targetTouches), mark a boolean in
    // each Touch object so that we can later loop only once over all touches we see to marshall over to Wasm.

    for (let t of et) {
      // Browser might recycle the generated Touch objects between each frame (Firefox on Android), so reset any
      // changed/target states we may have set from previous frame.
      t.isChanged = t.onTarget = 0;
      touches[t.identifier] = t;
    }
    // Mark which touches are part of the changedTouches list.
    for (let t of e.changedTouches) {
      t.isChanged = 1;
      touches[t.identifier] = t;
    }
    // Mark which touches are part of the targetTouches list.
    for (let t of e.targetTouches) {
      touches[t.identifier].onTarget = 1;
    }

    var touchEvent = JSEvents.touchEvent;
    HEAPF64[touchEvent >> 3] = e.timeStamp;
    HEAP8[touchEvent + 12] = e.ctrlKey;
    HEAP8[touchEvent + 13] = e.shiftKey;
    HEAP8[touchEvent + 14] = e.altKey;
    HEAP8[touchEvent + 15] = e.metaKey;
    var idx = touchEvent + 16;
    var targetRect = getBoundingClientRect(target);
    var numTouches = 0;
    for (let t of Object.values(touches)) {
      var idx32 = idx >> 2; // Pre-shift the ptr to index to HEAP32 to save code size
      HEAP32[idx32 + 0] = t.identifier;
      HEAP32[idx32 + 1] = t.screenX;
      HEAP32[idx32 + 2] = t.screenY;
      HEAP32[idx32 + 3] = t.clientX;
      HEAP32[idx32 + 4] = t.clientY;
      HEAP32[idx32 + 5] = t.pageX;
      HEAP32[idx32 + 6] = t.pageY;
      HEAP8[idx + 28] = t.isChanged;
      HEAP8[idx + 29] = t.onTarget;
      HEAP32[idx32 + 8] = t.clientX - (targetRect.left | 0);
      HEAP32[idx32 + 9] = t.clientY - (targetRect.top | 0);

      idx += 48;

      if (++numTouches > 31) {
        break;
      }
    }
    HEAP32[(touchEvent + 8) >> 2] = numTouches;

    if (getWasmTableEntry(callbackfunc)(eventTypeId, touchEvent, userData))
      e.preventDefault();
  };

  var eventHandler = {
    target,
    allowsDeferredCalls:
      eventTypeString == 'touchstart' || eventTypeString == 'touchend',
    eventTypeString,
    eventTypeId,
    userData,
    callbackfunc,
    handlerFunc: touchEventHandlerFunc,
    useCapture,
  };
  return JSEvents.registerOrRemoveHandler(eventHandler);
};
var _emscripten_set_touchcancel_callback_on_thread = (
  target,
  userData,
  useCapture,
  callbackfunc,
  targetThread
) =>
  registerTouchEventCallback(
    target,
    userData,
    useCapture,
    callbackfunc,
    25,
    'touchcancel',
    targetThread
  );

var _emscripten_set_touchend_callback_on_thread = (
  target,
  userData,
  useCapture,
  callbackfunc,
  targetThread
) =>
  registerTouchEventCallback(
    target,
    userData,
    useCapture,
    callbackfunc,
    23,
    'touchend',
    targetThread
  );

var _emscripten_set_touchmove_callback_on_thread = (
  target,
  userData,
  useCapture,
  callbackfunc,
  targetThread
) =>
  registerTouchEventCallback(
    target,
    userData,
    useCapture,
    callbackfunc,
    24,
    'touchmove',
    targetThread
  );

var _emscripten_set_touchstart_callback_on_thread = (
  target,
  userData,
  useCapture,
  callbackfunc,
  targetThread
) =>
  registerTouchEventCallback(
    target,
    userData,
    useCapture,
    callbackfunc,
    22,
    'touchstart',
    targetThread
  );

var fillVisibilityChangeEventData = (eventStruct) => {
  var visibilityStates = ['hidden', 'visible', 'prerender', 'unloaded'];
  var visibilityState = visibilityStates.indexOf(document.visibilityState);

  // Assigning a boolean to HEAP32 with expected type coercion.
  /** @suppress{checkTypes} */
  HEAP8[eventStruct] = document.hidden;
  HEAP32[(eventStruct + 4) >> 2] = visibilityState;
};

var registerVisibilityChangeEventCallback = (
  target,
  userData,
  useCapture,
  callbackfunc,
  eventTypeId,
  eventTypeString,
  targetThread
) => {
  var eventSize = 8;
  JSEvents.visibilityChangeEvent ||= _malloc(eventSize);

  var visibilityChangeEventHandlerFunc = (e) => {
    var visibilityChangeEvent = JSEvents.visibilityChangeEvent;
    fillVisibilityChangeEventData(visibilityChangeEvent);

    if (
      getWasmTableEntry(callbackfunc)(
        eventTypeId,
        visibilityChangeEvent,
        userData
      )
    )
      e.preventDefault();
  };

  var eventHandler = {
    target,
    eventTypeString,
    eventTypeId,
    userData,
    callbackfunc,
    handlerFunc: visibilityChangeEventHandlerFunc,
    useCapture,
  };
  return JSEvents.registerOrRemoveHandler(eventHandler);
};

var _emscripten_set_visibilitychange_callback_on_thread = (
  userData,
  useCapture,
  callbackfunc,
  targetThread
) => {
  if (!specialHTMLTargets[1]) {
    return -4;
  }
  return registerVisibilityChangeEventCallback(
    specialHTMLTargets[1],
    userData,
    useCapture,
    callbackfunc,
    21,
    'visibilitychange',
    targetThread
  );
};

/** @param {number=} timeout */
var safeSetTimeout = (func, timeout) => {
  return setTimeout(() => {
    callUserCallback(func);
  }, timeout);
};

var Browser = {
  useWebGL: false,
  isFullscreen: false,
  pointerLock: false,
  moduleContextCreatedCallbacks: [],
  workers: [],
  preloadedImages: {},
  preloadedAudios: {},
  getCanvas: () => Module['canvas'],
  init() {
    if (Browser.initted) return;
    Browser.initted = true;

    // Support for plugins that can process preloaded files. You can add more of these to
    // your app by creating and appending to preloadPlugins.
    //
    // Each plugin is asked if it can handle a file based on the file's name. If it can,
    // it is given the file's raw data. When it is done, it calls a callback with the file's
    // (possibly modified) data. For example, a plugin might decompress a file, or it
    // might create some side data structure for use later (like an Image element, etc.).

    var imagePlugin = {};
    imagePlugin['canHandle'] = (name) => {
      return (
        !Module['noImageDecoding'] && /\.(jpg|jpeg|png|bmp|webp)$/i.test(name)
      );
    };
    imagePlugin['handle'] = async (byteArray, name) => {
      var b = new Blob([byteArray], { type: Browser.getMimetype(name) });
      if (b.size !== byteArray.length) {
        // Safari bug #118630
        // Safari's Blob can only take an ArrayBuffer
        b = new Blob([new Uint8Array(byteArray).buffer], {
          type: Browser.getMimetype(name),
        });
      }
      var url = URL.createObjectURL(b);
      return new Promise((resolve, reject) => {
        var img = new Image();
        img.onload = () => {
          assert(img.complete, `Image ${name} could not be decoded`);
          var canvas = /** @type {!HTMLCanvasElement} */ (
            document.createElement('canvas')
          );
          canvas.width = img.width;
          canvas.height = img.height;
          var ctx = canvas.getContext('2d');
          ctx.drawImage(img, 0, 0);
          Browser.preloadedImages[name] = canvas;
          URL.revokeObjectURL(url);
          resolve(byteArray);
        };
        img.onerror = (event) => {
          err(`Image ${url} could not be decoded`);
          reject();
        };
        img.src = url;
      });
    };
    preloadPlugins.push(imagePlugin);

    var audioPlugin = {};
    audioPlugin['canHandle'] = (name) => {
      return (
        !Module['noAudioDecoding'] &&
        name.slice(-4) in { '.ogg': 1, '.wav': 1, '.mp3': 1 }
      );
    };
    audioPlugin['handle'] = async (byteArray, name) => {
      return new Promise((resolve, reject) => {
        var done = false;
        function finish(audio) {
          if (done) return;
          done = true;
          Browser.preloadedAudios[name] = audio;
          resolve(byteArray);
        }
        var b = new Blob([byteArray], { type: Browser.getMimetype(name) });
        var url = URL.createObjectURL(b); // XXX we never revoke this!
        var audio = new Audio();
        audio.addEventListener('canplaythrough', () => finish(audio), false); // use addEventListener due to chromium bug 124926
        audio.onerror = (event) => {
          if (done) return;
          err(
            `warning: browser could not fully decode audio ${name}, trying slower base64 approach`
          );
          function encode64(data) {
            var BASE =
              'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
            var PAD = '=';
            var ret = '';
            var leftchar = 0;
            var leftbits = 0;
            for (var i = 0; i < data.length; i++) {
              leftchar = (leftchar << 8) | data[i];
              leftbits += 8;
              while (leftbits >= 6) {
                var curr = (leftchar >> (leftbits - 6)) & 0x3f;
                leftbits -= 6;
                ret += BASE[curr];
              }
            }
            if (leftbits == 2) {
              ret += BASE[(leftchar & 3) << 4];
              ret += PAD + PAD;
            } else if (leftbits == 4) {
              ret += BASE[(leftchar & 0xf) << 2];
              ret += PAD;
            }
            return ret;
          }
          audio.src =
            'data:audio/x-' + name.slice(-3) + ';base64,' + encode64(byteArray);
          finish(audio); // we don't wait for confirmation this worked - but it's worth trying
        };
        audio.src = url;
        // workaround for chrome bug 124926 - we do not always get oncanplaythrough or onerror
        safeSetTimeout(() => {
          finish(audio); // try to use it even though it is not necessarily ready to play
        }, 10000);
      });
    };
    preloadPlugins.push(audioPlugin);

    // Canvas event setup

    function pointerLockChange() {
      var canvas = Browser.getCanvas();
      Browser.pointerLock = document.pointerLockElement === canvas;
    }
    var canvas = Browser.getCanvas();
    if (canvas) {
      // forced aspect ratio can be enabled by defining 'forcedAspectRatio' on Module
      // Module['forcedAspectRatio'] = 4 / 3;

      document.addEventListener('pointerlockchange', pointerLockChange, false);

      if (Module['elementPointerLock']) {
        canvas.addEventListener(
          'click',
          (ev) => {
            if (
              !Browser.pointerLock &&
              Browser.getCanvas().requestPointerLock
            ) {
              Browser.getCanvas().requestPointerLock();
              ev.preventDefault();
            }
          },
          false
        );
      }
    }
  },
  createContext(
    /** @type {HTMLCanvasElement} */ canvas,
    useWebGL,
    setInModule,
    webGLContextAttributes
  ) {
    if (useWebGL && Module['ctx'] && canvas == Browser.getCanvas())
      return Module['ctx']; // no need to recreate GL context if it's already been created for this canvas.

    var ctx;
    var contextHandle;
    if (useWebGL) {
      // For GLES2/desktop GL compatibility, adjust a few defaults to be different to WebGL defaults, so that they align better with the desktop defaults.
      var contextAttributes = {
        antialias: false,
        alpha: false,
        majorVersion: 1,
      };

      if (webGLContextAttributes) {
        for (var attribute in webGLContextAttributes) {
          contextAttributes[attribute] = webGLContextAttributes[attribute];
        }
      }

      // This check of existence of GL is here to satisfy Closure compiler, which yells if variable GL is referenced below but GL object is not
      // actually compiled in because application is not doing any GL operations. TODO: Ideally if GL is not being used, this function
      // Browser.createContext() should not even be emitted.
      if (typeof GL != 'undefined') {
        contextHandle = GL.createContext(canvas, contextAttributes);
        if (contextHandle) {
          ctx = GL.getContext(contextHandle).GLctx;
        }
      }
    } else {
      ctx = canvas.getContext('2d');
    }

    if (!ctx) return null;

    if (setInModule) {
      if (!useWebGL)
        assert(
          typeof GLctx == 'undefined',
          'cannot set in module if GLctx is used, but we are a non-GL context that would replace it'
        );
      Module['ctx'] = ctx;
      if (useWebGL) GL.makeContextCurrent(contextHandle);
      Browser.useWebGL = useWebGL;
      Browser.moduleContextCreatedCallbacks.forEach((callback) => callback());
      Browser.init();
    }
    return ctx;
  },
  fullscreenHandlersInstalled: false,
  lockPointer: undefined,
  resizeCanvas: undefined,
  requestFullscreen(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 = Browser.getCanvas();
    function fullscreenChange() {
      Browser.isFullscreen = false;
      var canvasContainer = canvas.parentNode;
      if (getFullscreenElement() === canvasContainer) {
        canvas.exitFullscreen = Browser.exitFullscreen;
        if (Browser.lockPointer) canvas.requestPointerLock();
        Browser.isFullscreen = true;
        if (Browser.resizeCanvas) {
          Browser.setFullscreenCanvasSize();
        } else {
          Browser.updateCanvasDimensions(canvas);
        }
      } else {
        // remove the full screen specific parent of the canvas again to restore the HTML structure from before going full screen
        canvasContainer.parentNode.insertBefore(canvas, canvasContainer);
        canvasContainer.parentNode.removeChild(canvasContainer);

        if (Browser.resizeCanvas) {
          Browser.setWindowedCanvasSize();
        } else {
          Browser.updateCanvasDimensions(canvas);
        }
      }
      Module['onFullScreen']?.(Browser.isFullscreen);
      Module['onFullscreen']?.(Browser.isFullscreen);
    }

    if (!Browser.fullscreenHandlersInstalled) {
      Browser.fullscreenHandlersInstalled = true;
      document.addEventListener('fullscreenchange', fullscreenChange, false);
      document.addEventListener('mozfullscreenchange', fullscreenChange, false);
      document.addEventListener(
        'webkitfullscreenchange',
        fullscreenChange,
        false
      );
      document.addEventListener('MSFullscreenChange', fullscreenChange, false);
    }

    // create a new parent to ensure the canvas has no siblings. this allows browsers to optimize full screen performance when its parent is the full screen root
    var canvasContainer = document.createElement('div');
    canvas.parentNode.insertBefore(canvasContainer, canvas);
    canvasContainer.appendChild(canvas);

    // use parent of canvas as full screen root to allow aspect ratio correction (Firefox stretches the root to screen size)
    canvasContainer.requestFullscreen =
      canvasContainer['requestFullscreen'] ||
      canvasContainer['mozRequestFullScreen'] ||
      canvasContainer['msRequestFullscreen'] ||
      (canvasContainer['webkitRequestFullscreen']
        ? () =>
            canvasContainer['webkitRequestFullscreen'](
              Element['ALLOW_KEYBOARD_INPUT']
            )
        : null) ||
      (canvasContainer['webkitRequestFullScreen']
        ? () =>
            canvasContainer['webkitRequestFullScreen'](
              Element['ALLOW_KEYBOARD_INPUT']
            )
        : null);

    canvasContainer.requestFullscreen();
  },
  requestFullScreen() {
    abort(
      'Module.requestFullScreen has been replaced by Module.requestFullscreen (without a capital S)'
    );
  },
  exitFullscreen() {
    // This is workaround for chrome. Trying to exit from fullscreen
    // not in fullscreen state will cause "TypeError: Document not active"
    // in chrome. See https://github.com/emscripten-core/emscripten/pull/8236
    if (!Browser.isFullscreen) {
      return false;
    }

    var CFS =
      document['exitFullscreen'] ||
      document['cancelFullScreen'] ||
      document['mozCancelFullScreen'] ||
      document['msExitFullscreen'] ||
      document['webkitCancelFullScreen'] ||
      (() => {});
    CFS.apply(document, []);
    return true;
  },
  safeSetTimeout(func, timeout) {
    // Legacy function, this is used by the SDL2 port so we need to keep it
    // around at least until that is updated.
    // See https://github.com/libsdl-org/SDL/pull/6304
    return safeSetTimeout(func, timeout);
  },
  getMimetype(name) {
    return {
      jpg: 'image/jpeg',
      jpeg: 'image/jpeg',
      png: 'image/png',
      bmp: 'image/bmp',
      ogg: 'audio/ogg',
      wav: 'audio/wav',
      mp3: 'audio/mpeg',
    }[name.slice(name.lastIndexOf('.') + 1)];
  },
  getUserMedia(func) {
    window.getUserMedia ||=
      navigator['getUserMedia'] || navigator['mozGetUserMedia'];
    window.getUserMedia(func);
  },
  getMovementX(event) {
    return (
      event['movementX'] ||
      event['mozMovementX'] ||
      event['webkitMovementX'] ||
      0
    );
  },
  getMovementY(event) {
    return (
      event['movementY'] ||
      event['mozMovementY'] ||
      event['webkitMovementY'] ||
      0
    );
  },
  getMouseWheelDelta(event) {
    var delta = 0;
    switch (event.type) {
      case 'DOMMouseScroll':
        // 3 lines make up a step
        delta = event.detail / 3;
        break;
      case 'mousewheel':
        // 120 units make up a step
        delta = event.wheelDelta / 120;
        break;
      case 'wheel':
        delta = event.deltaY;
        switch (event.deltaMode) {
          case 0:
            // DOM_DELTA_PIXEL: 100 pixels make up a step
            delta /= 100;
            break;
          case 1:
            // DOM_DELTA_LINE: 3 lines make up a step
            delta /= 3;
            break;
          case 2:
            // DOM_DELTA_PAGE: A page makes up 80 steps
            delta *= 80;
            break;
          default:
            abort('unrecognized mouse wheel delta mode: ' + event.deltaMode);
        }
        break;
      default:
        abort('unrecognized mouse wheel event: ' + event.type);
    }
    return delta;
  },
  mouseX: 0,
  mouseY: 0,
  mouseMovementX: 0,
  mouseMovementY: 0,
  touches: {},
  lastTouches: {},
  calculateMouseCoords(pageX, pageY) {
    // Calculate the movement based on the changes
    // in the coordinates.
    var canvas = Browser.getCanvas();
    var rect = canvas.getBoundingClientRect();

    // Neither .scrollX or .pageXOffset are defined in a spec, but
    // we prefer .scrollX because it is currently in a spec draft.
    // (see: http://www.w3.org/TR/2013/WD-cssom-view-20131217/)
    var scrollX =
      typeof window.scrollX != 'undefined'
        ? window.scrollX
        : window.pageXOffset;
    var scrollY =
      typeof window.scrollY != 'undefined'
        ? window.scrollY
        : window.pageYOffset;
    // If this assert lands, it's likely because the browser doesn't support scrollX or pageXOffset
    // and we have no viable fallback.
    assert(
      typeof scrollX != 'undefined' && typeof scrollY != 'undefined',
      'Unable to retrieve scroll position, mouse positions likely broken.'
    );
    var adjustedX = pageX - (scrollX + rect.left);
    var adjustedY = pageY - (scrollY + rect.top);

    // the canvas might be CSS-scaled compared to its backbuffer;
    // SDL-using content will want mouse coordinates in terms
    // of backbuffer units.
    adjustedX = adjustedX * (canvas.width / rect.width);
    adjustedY = adjustedY * (canvas.height / rect.height);

    return { x: adjustedX, y: adjustedY };
  },
  setMouseCoords(pageX, pageY) {
    const { x, y } = Browser.calculateMouseCoords(pageX, pageY);
    Browser.mouseMovementX = x - Browser.mouseX;
    Browser.mouseMovementY = y - Browser.mouseY;
    Browser.mouseX = x;
    Browser.mouseY = y;
  },
  calculateMouseEvent(event) {
    // event should be mousemove, mousedown or mouseup
    if (Browser.pointerLock) {
      // When the pointer is locked, calculate the coordinates
      // based on the movement of the mouse.
      // Workaround for Firefox bug 764498
      if (event.type != 'mousemove' && 'mozMovementX' in event) {
        Browser.mouseMovementX = Browser.mouseMovementY = 0;
      } else {
        Browser.mouseMovementX = Browser.getMovementX(event);
        Browser.mouseMovementY = Browser.getMovementY(event);
      }

      // add the mouse delta to the current absolute mouse position
      Browser.mouseX += Browser.mouseMovementX;
      Browser.mouseY += Browser.mouseMovementY;
    } else {
      if (
        event.type === 'touchstart' ||
        event.type === 'touchend' ||
        event.type === 'touchmove'
      ) {
        var touch = event.touch;
        if (touch === undefined) {
          return; // the "touch" property is only defined in SDL
        }
        var coords = Browser.calculateMouseCoords(touch.pageX, touch.pageY);

        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];
          last ||= coords;
          Browser.lastTouches[touch.identifier] = last;
          Browser.touches[touch.identifier] = coords;
        }
        return;
      }

      Browser.setMouseCoords(event.pageX, event.pageY);
    }
  },
  resizeListeners: [],
  updateResizeListeners() {
    var canvas = Browser.getCanvas();
    Browser.resizeListeners.forEach((listener) =>
      listener(canvas.width, canvas.height)
    );
  },
  setCanvasSize(width, height, noUpdates) {
    var canvas = Browser.getCanvas();
    Browser.updateCanvasDimensions(canvas, width, height);
    if (!noUpdates) Browser.updateResizeListeners();
  },
  windowedWidth: 0,
  windowedHeight: 0,
  setFullscreenCanvasSize() {
    // check if SDL is available
    if (typeof SDL != 'undefined') {
      var flags = HEAPU32[SDL.screen >> 2];
      flags = flags | 0x00800000; // set SDL_FULLSCREEN flag
      HEAP32[SDL.screen >> 2] = flags;
    }
    Browser.updateCanvasDimensions(Browser.getCanvas());
    Browser.updateResizeListeners();
  },
  setWindowedCanvasSize() {
    // check if SDL is available
    if (typeof SDL != 'undefined') {
      var flags = HEAPU32[SDL.screen >> 2];
      flags = flags & ~0x00800000; // clear SDL_FULLSCREEN flag
      HEAP32[SDL.screen >> 2] = flags;
    }
    Browser.updateCanvasDimensions(Browser.getCanvas());
    Browser.updateResizeListeners();
  },
  updateCanvasDimensions(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'] > 0) {
      if (w / h < Module['forcedAspectRatio']) {
        w = Math.round(h * Module['forcedAspectRatio']);
      } else {
        h = Math.round(w / Module['forcedAspectRatio']);
      }
    }
    if (
      getFullscreenElement() === 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');
        }
      }
    }
  },
};

var _emscripten_set_window_title = (title) =>
  (document.title = UTF8ToString(title));

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

/** @param {number=} offset */
var doReadv = (stream, iov, iovcnt, offset) => {
  var ret = 0;
  for (var i = 0; i < iovcnt; i++) {
    var ptr = HEAPU32[iov >> 2];
    var len = HEAPU32[(iov + 4) >> 2];
    iov += 8;
    var curr = FS.read(stream, HEAP8, ptr, len, offset);
    if (curr < 0) return -1;
    ret += curr;
    if (curr < len) break; // nothing more to read
    if (typeof offset != 'undefined') {
      offset += curr;
    }
  }
  return ret;
};

function _fd_read(fd, iov, iovcnt, pnum) {
  try {
    var stream = SYSCALLS.getStreamFromFD(fd);
    var num = doReadv(stream, iov, iovcnt);
    HEAPU32[pnum >> 2] = num;
    return 0;
  } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return e.errno;
  }
}

function _fd_seek(fd, offset, whence, newOffset) {
  offset = bigintToI53Checked(offset);

  try {
    if (isNaN(offset)) return 61;
    var stream = SYSCALLS.getStreamFromFD(fd);
    FS.llseek(stream, offset, whence);
    HEAP64[newOffset >> 3] = BigInt(stream.position);
    if (stream.getdents && offset === 0 && whence === 0) stream.getdents = null; // reset readdir state
    return 0;
  } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return e.errno;
  }
}

/** @param {number=} offset */
var doWritev = (stream, iov, iovcnt, offset) => {
  var ret = 0;
  for (var i = 0; i < iovcnt; i++) {
    var ptr = HEAPU32[iov >> 2];
    var len = HEAPU32[(iov + 4) >> 2];
    iov += 8;
    var curr = FS.write(stream, HEAP8, ptr, len, offset);
    if (curr < 0) return -1;
    ret += curr;
    if (curr < len) {
      // No more space to write.
      break;
    }
    if (typeof offset != 'undefined') {
      offset += curr;
    }
  }
  return ret;
};

function _fd_write(fd, iov, iovcnt, pnum) {
  try {
    var stream = SYSCALLS.getStreamFromFD(fd);
    var num = doWritev(stream, iov, iovcnt);
    HEAPU32[pnum >> 2] = num;
    return 0;
  } catch (e) {
    if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
    return e.errno;
  }
}

var _glActiveTexture = _emscripten_glActiveTexture;

var _glAttachShader = _emscripten_glAttachShader;

var _glBindAttribLocation = _emscripten_glBindAttribLocation;

var _glBindBuffer = _emscripten_glBindBuffer;

var _glBindTexture = _emscripten_glBindTexture;

var _glBlendFunc = _emscripten_glBlendFunc;

var _glBufferData = _emscripten_glBufferData;

var _glBufferSubData = _emscripten_glBufferSubData;

var _glClear = _emscripten_glClear;

var _glClearColor = _emscripten_glClearColor;

var _glClearDepthf = _emscripten_glClearDepthf;

var _glCompileShader = _emscripten_glCompileShader;

var _glCompressedTexImage2D = _emscripten_glCompressedTexImage2D;

var _glCreateProgram = _emscripten_glCreateProgram;

var _glCreateShader = _emscripten_glCreateShader;

var _glCullFace = _emscripten_glCullFace;

var _glDeleteProgram = _emscripten_glDeleteProgram;

var _glDeleteShader = _emscripten_glDeleteShader;

var _glDepthFunc = _emscripten_glDepthFunc;

var _glDisable = _emscripten_glDisable;

var _glDrawArrays = _emscripten_glDrawArrays;

var _glDrawElements = _emscripten_glDrawElements;

var _glEnable = _emscripten_glEnable;

var _glEnableVertexAttribArray = _emscripten_glEnableVertexAttribArray;

var _glFrontFace = _emscripten_glFrontFace;

var _glGenBuffers = _emscripten_glGenBuffers;

var _glGenTextures = _emscripten_glGenTextures;

var _glGetAttribLocation = _emscripten_glGetAttribLocation;

var _glGetFloatv = _emscripten_glGetFloatv;

var _glGetProgramInfoLog = _emscripten_glGetProgramInfoLog;

var _glGetProgramiv = _emscripten_glGetProgramiv;

var _glGetShaderInfoLog = _emscripten_glGetShaderInfoLog;

var _glGetShaderiv = _emscripten_glGetShaderiv;

var _glGetString = _emscripten_glGetString;

var _glGetUniformLocation = _emscripten_glGetUniformLocation;

var _glLinkProgram = _emscripten_glLinkProgram;

var _glPixelStorei = _emscripten_glPixelStorei;

var _glReadPixels = _emscripten_glReadPixels;

var _glShaderSource = _emscripten_glShaderSource;

var _glTexImage2D = _emscripten_glTexImage2D;

var _glTexParameteri = _emscripten_glTexParameteri;

var _glUniform1i = _emscripten_glUniform1i;

var _glUniform4f = _emscripten_glUniform4f;

var _glUniformMatrix4fv = _emscripten_glUniformMatrix4fv;

var _glUseProgram = _emscripten_glUseProgram;

var _glVertexAttribPointer = _emscripten_glVertexAttribPointer;

var _glViewport = _emscripten_glViewport;

/** @constructor */
function GLFW_Window(
  id,
  width,
  height,
  framebufferWidth,
  framebufferHeight,
  title,
  monitor,
  share
) {
  this.id = id;
  this.x = 0;
  this.y = 0;
  this.fullscreen = false; // Used to determine if app is in fullscreen mode
  this.storedX = 0; // Used to store X before fullscreen
  this.storedY = 0; // Used to store Y before fullscreen
  this.width = width;
  this.height = height;
  this.framebufferWidth = framebufferWidth;
  this.framebufferHeight = framebufferHeight;
  this.storedWidth = width; // Used to store width before fullscreen
  this.storedHeight = height; // Used to store height before fullscreen
  this.title = title;
  this.monitor = monitor;
  this.share = share;
  this.attributes = { ...GLFW.hints };
  this.inputModes = {
    0x00033001: 0x00034001, // GLFW_CURSOR (GLFW_CURSOR_NORMAL)
    0x00033002: 0, // GLFW_STICKY_KEYS
    0x00033003: 0, // GLFW_STICKY_MOUSE_BUTTONS
  };
  this.buttons = 0;
  this.keys = new Array();
  this.domKeys = new Array();
  this.shouldClose = 0;
  this.title = null;
  this.windowPosFunc = 0; // GLFWwindowposfun
  this.windowSizeFunc = 0; // GLFWwindowsizefun
  this.windowCloseFunc = 0; // GLFWwindowclosefun
  this.windowRefreshFunc = 0; // GLFWwindowrefreshfun
  this.windowFocusFunc = 0; // GLFWwindowfocusfun
  this.windowIconifyFunc = 0; // GLFWwindowiconifyfun
  this.windowMaximizeFunc = 0; // GLFWwindowmaximizefun
  this.framebufferSizeFunc = 0; // GLFWframebuffersizefun
  this.windowContentScaleFunc = 0; // GLFWwindowcontentscalefun
  this.mouseButtonFunc = 0; // GLFWmousebuttonfun
  this.cursorPosFunc = 0; // GLFWcursorposfun
  this.cursorEnterFunc = 0; // GLFWcursorenterfun
  this.scrollFunc = 0; // GLFWscrollfun
  this.dropFunc = 0; // GLFWdropfun
  this.keyFunc = 0; // GLFWkeyfun
  this.charFunc = 0; // GLFWcharfun
  this.userptr = 0;
}

var GLFW = {
  WindowFromId: (id) => {
    if (id <= 0 || !GLFW.windows) return null;
    return GLFW.windows[id - 1];
  },
  joystickFunc: 0,
  errorFunc: 0,
  monitorFunc: 0,
  active: null,
  scale: null,
  windows: null,
  monitors: null,
  monitorString: null,
  versionString: null,
  initialTime: null,
  extensions: null,
  devicePixelRatioMQL: null,
  hints: null,
  primaryTouchId: null,
  defaultHints: {
    131073: 0,
    131074: 0,
    131075: 1,
    131076: 1,
    131077: 1,
    131082: 0,
    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,
    139276: 0,
  },
  DOMToGLFWKeyCode: (keycode) => {
    switch (keycode) {
      // these keycodes are only defined for GLFW3, assume they are the same for GLFW2
      case 0x20:
        return 32; // DOM_VK_SPACE -> GLFW_KEY_SPACE
      case 0xde:
        return 39; // DOM_VK_QUOTE -> GLFW_KEY_APOSTROPHE
      case 0xbc:
        return 44; // DOM_VK_COMMA -> GLFW_KEY_COMMA
      case 0xad:
        return 45; // DOM_VK_HYPHEN_MINUS -> GLFW_KEY_MINUS
      case 0xbd:
        return 45; // DOM_VK_MINUS -> GLFW_KEY_MINUS
      case 0xbe:
        return 46; // DOM_VK_PERIOD -> GLFW_KEY_PERIOD
      case 0xbf:
        return 47; // DOM_VK_SLASH -> GLFW_KEY_SLASH
      case 0x30:
        return 48; // DOM_VK_0 -> GLFW_KEY_0
      case 0x31:
        return 49; // DOM_VK_1 -> GLFW_KEY_1
      case 0x32:
        return 50; // DOM_VK_2 -> GLFW_KEY_2
      case 0x33:
        return 51; // DOM_VK_3 -> GLFW_KEY_3
      case 0x34:
        return 52; // DOM_VK_4 -> GLFW_KEY_4
      case 0x35:
        return 53; // DOM_VK_5 -> GLFW_KEY_5
      case 0x36:
        return 54; // DOM_VK_6 -> GLFW_KEY_6
      case 0x37:
        return 55; // DOM_VK_7 -> GLFW_KEY_7
      case 0x38:
        return 56; // DOM_VK_8 -> GLFW_KEY_8
      case 0x39:
        return 57; // DOM_VK_9 -> GLFW_KEY_9
      case 0x3b:
        return 59; // DOM_VK_SEMICOLON -> GLFW_KEY_SEMICOLON
      case 0x3d:
        return 61; // DOM_VK_EQUALS -> GLFW_KEY_EQUAL
      case 0xbb:
        return 61; // DOM_VK_EQUALS -> GLFW_KEY_EQUAL
      case 0x41:
        return 65; // DOM_VK_A -> GLFW_KEY_A
      case 0x42:
        return 66; // DOM_VK_B -> GLFW_KEY_B
      case 0x43:
        return 67; // DOM_VK_C -> GLFW_KEY_C
      case 0x44:
        return 68; // DOM_VK_D -> GLFW_KEY_D
      case 0x45:
        return 69; // DOM_VK_E -> GLFW_KEY_E
      case 0x46:
        return 70; // DOM_VK_F -> GLFW_KEY_F
      case 0x47:
        return 71; // DOM_VK_G -> GLFW_KEY_G
      case 0x48:
        return 72; // DOM_VK_H -> GLFW_KEY_H
      case 0x49:
        return 73; // DOM_VK_I -> GLFW_KEY_I
      case 0x4a:
        return 74; // DOM_VK_J -> GLFW_KEY_J
      case 0x4b:
        return 75; // DOM_VK_K -> GLFW_KEY_K
      case 0x4c:
        return 76; // DOM_VK_L -> GLFW_KEY_L
      case 0x4d:
        return 77; // DOM_VK_M -> GLFW_KEY_M
      case 0x4e:
        return 78; // DOM_VK_N -> GLFW_KEY_N
      case 0x4f:
        return 79; // DOM_VK_O -> GLFW_KEY_O
      case 0x50:
        return 80; // DOM_VK_P -> GLFW_KEY_P
      case 0x51:
        return 81; // DOM_VK_Q -> GLFW_KEY_Q
      case 0x52:
        return 82; // DOM_VK_R -> GLFW_KEY_R
      case 0x53:
        return 83; // DOM_VK_S -> GLFW_KEY_S
      case 0x54:
        return 84; // DOM_VK_T -> GLFW_KEY_T
      case 0x55:
        return 85; // DOM_VK_U -> GLFW_KEY_U
      case 0x56:
        return 86; // DOM_VK_V -> GLFW_KEY_V
      case 0x57:
        return 87; // DOM_VK_W -> GLFW_KEY_W
      case 0x58:
        return 88; // DOM_VK_X -> GLFW_KEY_X
      case 0x59:
        return 89; // DOM_VK_Y -> GLFW_KEY_Y
      case 0x5a:
        return 90; // DOM_VK_Z -> GLFW_KEY_Z
      case 0xdb:
        return 91; // DOM_VK_OPEN_BRACKET -> GLFW_KEY_LEFT_BRACKET
      case 0xdc:
        return 92; // DOM_VK_BACKSLASH -> GLFW_KEY_BACKSLASH
      case 0xdd:
        return 93; // DOM_VK_CLOSE_BRACKET -> GLFW_KEY_RIGHT_BRACKET
      case 0xc0:
        return 96; // DOM_VK_BACK_QUOTE -> GLFW_KEY_GRAVE_ACCENT

      case 0x1b:
        return 256; // DOM_VK_ESCAPE -> GLFW_KEY_ESCAPE
      case 0x0d:
        return 257; // DOM_VK_RETURN -> GLFW_KEY_ENTER
      case 0x09:
        return 258; // DOM_VK_TAB -> GLFW_KEY_TAB
      case 0x08:
        return 259; // DOM_VK_BACK -> GLFW_KEY_BACKSPACE
      case 0x2d:
        return 260; // DOM_VK_INSERT -> GLFW_KEY_INSERT
      case 0x2e:
        return 261; // DOM_VK_DELETE -> GLFW_KEY_DELETE
      case 0x27:
        return 262; // DOM_VK_RIGHT -> GLFW_KEY_RIGHT
      case 0x25:
        return 263; // DOM_VK_LEFT -> GLFW_KEY_LEFT
      case 0x28:
        return 264; // DOM_VK_DOWN -> GLFW_KEY_DOWN
      case 0x26:
        return 265; // DOM_VK_UP -> GLFW_KEY_UP
      case 0x21:
        return 266; // DOM_VK_PAGE_UP -> GLFW_KEY_PAGE_UP
      case 0x22:
        return 267; // DOM_VK_PAGE_DOWN -> GLFW_KEY_PAGE_DOWN
      case 0x24:
        return 268; // DOM_VK_HOME -> GLFW_KEY_HOME
      case 0x23:
        return 269; // DOM_VK_END -> GLFW_KEY_END
      case 0x14:
        return 280; // DOM_VK_CAPS_LOCK -> GLFW_KEY_CAPS_LOCK
      case 0x91:
        return 281; // DOM_VK_SCROLL_LOCK -> GLFW_KEY_SCROLL_LOCK
      case 0x90:
        return 282; // DOM_VK_NUM_LOCK -> GLFW_KEY_NUM_LOCK
      case 0x2c:
        return 283; // DOM_VK_SNAPSHOT -> GLFW_KEY_PRINT_SCREEN
      case 0x13:
        return 284; // DOM_VK_PAUSE -> GLFW_KEY_PAUSE
      case 0x70:
        return 290; // DOM_VK_F1 -> GLFW_KEY_F1
      case 0x71:
        return 291; // DOM_VK_F2 -> GLFW_KEY_F2
      case 0x72:
        return 292; // DOM_VK_F3 -> GLFW_KEY_F3
      case 0x73:
        return 293; // DOM_VK_F4 -> GLFW_KEY_F4
      case 0x74:
        return 294; // DOM_VK_F5 -> GLFW_KEY_F5
      case 0x75:
        return 295; // DOM_VK_F6 -> GLFW_KEY_F6
      case 0x76:
        return 296; // DOM_VK_F7 -> GLFW_KEY_F7
      case 0x77:
        return 297; // DOM_VK_F8 -> GLFW_KEY_F8
      case 0x78:
        return 298; // DOM_VK_F9 -> GLFW_KEY_F9
      case 0x79:
        return 299; // DOM_VK_F10 -> GLFW_KEY_F10
      case 0x7a:
        return 300; // DOM_VK_F11 -> GLFW_KEY_F11
      case 0x7b:
        return 301; // DOM_VK_F12 -> GLFW_KEY_F12
      case 0x7c:
        return 302; // DOM_VK_F13 -> GLFW_KEY_F13
      case 0x7d:
        return 303; // DOM_VK_F14 -> GLFW_KEY_F14
      case 0x7e:
        return 304; // DOM_VK_F15 -> GLFW_KEY_F15
      case 0x7f:
        return 305; // DOM_VK_F16 -> GLFW_KEY_F16
      case 0x80:
        return 306; // DOM_VK_F17 -> GLFW_KEY_F17
      case 0x81:
        return 307; // DOM_VK_F18 -> GLFW_KEY_F18
      case 0x82:
        return 308; // DOM_VK_F19 -> GLFW_KEY_F19
      case 0x83:
        return 309; // DOM_VK_F20 -> GLFW_KEY_F20
      case 0x84:
        return 310; // DOM_VK_F21 -> GLFW_KEY_F21
      case 0x85:
        return 311; // DOM_VK_F22 -> GLFW_KEY_F22
      case 0x86:
        return 312; // DOM_VK_F23 -> GLFW_KEY_F23
      case 0x87:
        return 313; // DOM_VK_F24 -> GLFW_KEY_F24
      case 0x88:
        return 314; // 0x88 (not used?) -> GLFW_KEY_F25
      case 0x60:
        return 320; // DOM_VK_NUMPAD0 -> GLFW_KEY_KP_0
      case 0x61:
        return 321; // DOM_VK_NUMPAD1 -> GLFW_KEY_KP_1
      case 0x62:
        return 322; // DOM_VK_NUMPAD2 -> GLFW_KEY_KP_2
      case 0x63:
        return 323; // DOM_VK_NUMPAD3 -> GLFW_KEY_KP_3
      case 0x64:
        return 324; // DOM_VK_NUMPAD4 -> GLFW_KEY_KP_4
      case 0x65:
        return 325; // DOM_VK_NUMPAD5 -> GLFW_KEY_KP_5
      case 0x66:
        return 326; // DOM_VK_NUMPAD6 -> GLFW_KEY_KP_6
      case 0x67:
        return 327; // DOM_VK_NUMPAD7 -> GLFW_KEY_KP_7
      case 0x68:
        return 328; // DOM_VK_NUMPAD8 -> GLFW_KEY_KP_8
      case 0x69:
        return 329; // DOM_VK_NUMPAD9 -> GLFW_KEY_KP_9
      case 0x6e:
        return 330; // DOM_VK_DECIMAL -> GLFW_KEY_KP_DECIMAL
      case 0x6f:
        return 331; // DOM_VK_DIVIDE -> GLFW_KEY_KP_DIVIDE
      case 0x6a:
        return 332; // DOM_VK_MULTIPLY -> GLFW_KEY_KP_MULTIPLY
      case 0x6d:
        return 333; // DOM_VK_SUBTRACT -> GLFW_KEY_KP_SUBTRACT
      case 0x6b:
        return 334; // DOM_VK_ADD -> GLFW_KEY_KP_ADD
      // case 0x0D:return 335; // DOM_VK_RETURN -> GLFW_KEY_KP_ENTER (DOM_KEY_LOCATION_RIGHT)
      // case 0x61:return 336; // DOM_VK_EQUALS -> GLFW_KEY_KP_EQUAL (DOM_KEY_LOCATION_RIGHT)
      case 0x10:
        return 340; // DOM_VK_SHIFT -> GLFW_KEY_LEFT_SHIFT
      case 0x11:
        return 341; // DOM_VK_CONTROL -> GLFW_KEY_LEFT_CONTROL
      case 0x12:
        return 342; // DOM_VK_ALT -> GLFW_KEY_LEFT_ALT
      case 0x5b:
        return 343; // DOM_VK_WIN -> GLFW_KEY_LEFT_SUPER
      case 0xe0:
        return 343; // DOM_VK_META -> GLFW_KEY_LEFT_SUPER
      // case 0x10:return 344; // DOM_VK_SHIFT -> GLFW_KEY_RIGHT_SHIFT (DOM_KEY_LOCATION_RIGHT)
      // case 0x11:return 345; // DOM_VK_CONTROL -> GLFW_KEY_RIGHT_CONTROL (DOM_KEY_LOCATION_RIGHT)
      // case 0x12:return 346; // DOM_VK_ALT -> GLFW_KEY_RIGHT_ALT (DOM_KEY_LOCATION_RIGHT)
      // case 0x5B:return 347; // DOM_VK_WIN -> GLFW_KEY_RIGHT_SUPER (DOM_KEY_LOCATION_RIGHT)
      case 0x5d:
        return 348; // DOM_VK_CONTEXT_MENU -> GLFW_KEY_MENU
      // XXX: GLFW_KEY_WORLD_1, GLFW_KEY_WORLD_2 what are these?
      default:
        return -1; // GLFW_KEY_UNKNOWN
    }
  },
  getModBits: (win) => {
    var mod = 0;
    if (win.keys[340]) mod |= 0x0001; // GLFW_MOD_SHIFT
    if (win.keys[341]) mod |= 0x0002; // GLFW_MOD_CONTROL
    if (win.keys[342]) mod |= 0x0004; // GLFW_MOD_ALT
    if (win.keys[343] || win.keys[348]) mod |= 0x0008; // GLFW_MOD_SUPER
    // add caps and num lock keys? only if lock_key_mod is set
    return mod;
  },
  onKeyPress: (event) => {
    if (!GLFW.active || !GLFW.active.charFunc) return;
    if (event.ctrlKey || event.metaKey) return;

    // correct unicode charCode is only available with onKeyPress event
    var charCode = event.charCode;
    if (charCode == 0 || (charCode >= 0x00 && charCode <= 0x1f)) return;

    getWasmTableEntry(GLFW.active.charFunc)(GLFW.active.id, charCode);
  },
  onKeyChanged: (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) {
      if (repeat) status = 2; // GLFW_REPEAT
      getWasmTableEntry(GLFW.active.keyFunc)(
        GLFW.active.id,
        key,
        keyCode,
        status,
        GLFW.getModBits(GLFW.active)
      );
    }
  },
  onGamepadConnected: (event) => {
    GLFW.refreshJoysticks();
  },
  onGamepadDisconnected: (event) => {
    GLFW.refreshJoysticks();
  },
  onKeydown: (event) => {
    GLFW.onKeyChanged(event.keyCode, 1); // GLFW_PRESS or GLFW_REPEAT

    // This logic comes directly from the sdl implementation. We cannot
    // call preventDefault on all keydown events otherwise onKeyPress will
    // not get called
    if (event.key == 'Backspace' || event.key == 'Tab') {
      event.preventDefault();
    }
  },
  onKeyup: (event) => {
    GLFW.onKeyChanged(event.keyCode, 0); // GLFW_RELEASE
  },
  onBlur: (event) => {
    if (!GLFW.active) return;

    for (var i = 0; i < GLFW.active.domKeys.length; ++i) {
      if (GLFW.active.domKeys[i]) {
        GLFW.onKeyChanged(i, 0); // GLFW_RELEASE
      }
    }
  },
  onMousemove: (event) => {
    if (!GLFW.active) return;

    if (event.type === 'touchmove') {
      // Handling for touch events that are being converted to mouse input.

      // Don't let the browser fire a duplicate mouse event.
      event.preventDefault();

      let primaryChanged = false;
      for (let i of event.changedTouches) {
        // If our chosen primary touch moved, update Browser mouse coords
        if (GLFW.primaryTouchId === i.identifier) {
          Browser.setMouseCoords(i.pageX, i.pageY);
          primaryChanged = true;
          break;
        }
      }

      if (!primaryChanged) {
        // Do not send mouse events if some touch other than the primary triggered this.
        return;
      }
    } else {
      // Handling for non-touch mouse input events.
      Browser.calculateMouseEvent(event);
    }

    if (event.target != Browser.getCanvas() || !GLFW.active.cursorPosFunc)
      return;

    if (GLFW.active.cursorPosFunc) {
      getWasmTableEntry(GLFW.active.cursorPosFunc)(
        GLFW.active.id,
        Browser.mouseX,
        Browser.mouseY
      );
    }
  },
  DOMToGLFWMouseButton: (event) => {
    // DOM and glfw have different button codes.
    // See http://www.w3schools.com/jsref/event_button.asp.
    var eventButton = event['button'];
    if (eventButton > 0) {
      if (eventButton == 1) {
        eventButton = 2;
      } else {
        eventButton = 1;
      }
    }
    return eventButton;
  },
  onMouseenter: (event) => {
    if (!GLFW.active) return;

    if (event.target != Browser.getCanvas()) return;

    if (GLFW.active.cursorEnterFunc) {
      getWasmTableEntry(GLFW.active.cursorEnterFunc)(GLFW.active.id, 1);
    }
  },
  onMouseleave: (event) => {
    if (!GLFW.active) return;

    if (event.target != Browser.getCanvas()) return;

    if (GLFW.active.cursorEnterFunc) {
      getWasmTableEntry(GLFW.active.cursorEnterFunc)(GLFW.active.id, 0);
    }
  },
  onMouseButtonChanged: (event, status) => {
    if (!GLFW.active) return;

    if (event.target != Browser.getCanvas()) return;

    // Is this from a touch event?
    const isTouchType =
      event.type === 'touchstart' ||
      event.type === 'touchend' ||
      event.type === 'touchcancel';

    // Only emulating mouse left-click behavior for touches.
    let eventButton = 0;
    if (isTouchType) {
      // Handling for touch events that are being converted to mouse input.

      // Don't let the browser fire a duplicate mouse event.
      event.preventDefault();

      let primaryChanged = false;

      // Set a primary touch if we have none.
      if (
        GLFW.primaryTouchId === null &&
        event.type === 'touchstart' &&
        event.targetTouches.length > 0
      ) {
        // Pick the first touch that started in the canvas and treat it as primary.
        const chosenTouch = event.targetTouches[0];
        GLFW.primaryTouchId = chosenTouch.identifier;

        Browser.setMouseCoords(chosenTouch.pageX, chosenTouch.pageY);
        primaryChanged = true;
      } else if (event.type === 'touchend' || event.type === 'touchcancel') {
        // Clear the primary touch if it ended.
        for (let i of event.changedTouches) {
          // If our chosen primary touch ended, remove it.
          if (GLFW.primaryTouchId === i.identifier) {
            GLFW.primaryTouchId = null;
            primaryChanged = true;
            break;
          }
        }
      }

      if (!primaryChanged) {
        // Do not send mouse events if some touch other than the primary triggered this.
        return;
      }
    } else {
      // Handling for non-touch mouse input events.
      Browser.calculateMouseEvent(event);
      eventButton = GLFW.DOMToGLFWMouseButton(event);
    }

    if (status == 1) {
      // GLFW_PRESS
      GLFW.active.buttons |= 1 << eventButton;
      try {
        event.target.setCapture();
      } catch (e) {}
    } else {
      // GLFW_RELEASE
      GLFW.active.buttons &= ~(1 << eventButton);
    }

    // Send mouse event to GLFW.
    if (GLFW.active.mouseButtonFunc) {
      getWasmTableEntry(GLFW.active.mouseButtonFunc)(
        GLFW.active.id,
        eventButton,
        status,
        GLFW.getModBits(GLFW.active)
      );
    }
  },
  onMouseButtonDown: (event) => {
    if (!GLFW.active) return;
    GLFW.onMouseButtonChanged(event, 1); // GLFW_PRESS
  },
  onMouseButtonUp: (event) => {
    if (!GLFW.active) return;
    GLFW.onMouseButtonChanged(event, 0); // GLFW_RELEASE
  },
  onMouseWheel: (event) => {
    // Note the minus sign that flips browser wheel direction (positive direction scrolls page down) to native wheel direction (positive direction is mouse wheel up)
    var delta = -Browser.getMouseWheelDelta(event);
    delta =
      delta == 0 ? 0 : delta > 0 ? Math.max(delta, 1) : Math.min(delta, -1); // Quantize to integer so that minimum scroll is at least +/- 1.
    GLFW.wheelPos += delta;

    if (
      !GLFW.active ||
      !GLFW.active.scrollFunc ||
      event.target != Browser.getCanvas()
    )
      return;
    var sx = 0;
    var sy = delta;
    if (event.type == 'mousewheel') {
      sx = event.wheelDeltaX;
    } else {
      sx = event.deltaX;
    }

    getWasmTableEntry(GLFW.active.scrollFunc)(GLFW.active.id, sx, sy);

    event.preventDefault();
  },
  onCanvasResize: (width, height, framebufferWidth, framebufferHeight) => {
    if (!GLFW.active) return;

    var resizeNeeded = false;

    // If the client is requesting fullscreen mode
    if (getFullscreenElement()) {
      if (!GLFW.active.fullscreen) {
        resizeNeeded = width != screen.width || height != screen.height;
        GLFW.active.storedX = GLFW.active.x;
        GLFW.active.storedY = GLFW.active.y;
        GLFW.active.storedWidth = GLFW.active.width;
        GLFW.active.storedHeight = GLFW.active.height;
        GLFW.active.x = GLFW.active.y = 0;
        GLFW.active.width = screen.width;
        GLFW.active.height = screen.height;
        GLFW.active.fullscreen = true;
      }
      // If the client is reverting from fullscreen mode
    } else if (GLFW.active.fullscreen == true) {
      resizeNeeded =
        width != GLFW.active.storedWidth || height != GLFW.active.storedHeight;
      GLFW.active.x = GLFW.active.storedX;
      GLFW.active.y = GLFW.active.storedY;
      GLFW.active.width = GLFW.active.storedWidth;
      GLFW.active.height = GLFW.active.storedHeight;
      GLFW.active.fullscreen = false;
    }

    if (resizeNeeded) {
      // width or height is changed (fullscreen / exit fullscreen) which will call this listener back
      // with proper framebufferWidth/framebufferHeight
      Browser.setCanvasSize(GLFW.active.width, GLFW.active.height);
    } else if (
      GLFW.active.width != width ||
      GLFW.active.height != height ||
      GLFW.active.framebufferWidth != framebufferWidth ||
      GLFW.active.framebufferHeight != framebufferHeight
    ) {
      GLFW.active.width = width;
      GLFW.active.height = height;
      GLFW.active.framebufferWidth = framebufferWidth;
      GLFW.active.framebufferHeight = framebufferHeight;
      GLFW.onWindowSizeChanged();
      GLFW.onFramebufferSizeChanged();
    }
  },
  onWindowSizeChanged: () => {
    if (!GLFW.active) return;

    if (GLFW.active.windowSizeFunc) {
      getWasmTableEntry(GLFW.active.windowSizeFunc)(
        GLFW.active.id,
        GLFW.active.width,
        GLFW.active.height
      );
    }
  },
  onFramebufferSizeChanged: () => {
    if (!GLFW.active) return;

    if (GLFW.active.framebufferSizeFunc) {
      getWasmTableEntry(GLFW.active.framebufferSizeFunc)(
        GLFW.active.id,
        GLFW.active.framebufferWidth,
        GLFW.active.framebufferHeight
      );
    }
  },
  onWindowContentScaleChanged: (scale) => {
    GLFW.scale = scale;
    if (!GLFW.active) return;

    if (GLFW.active.windowContentScaleFunc) {
      getWasmTableEntry(GLFW.active.windowContentScaleFunc)(
        GLFW.active.id,
        GLFW.scale,
        GLFW.scale
      );
    }
  },
  getTime: () => _emscripten_get_now() / 1000,
  setWindowTitle: (winid, title) => {
    var win = GLFW.WindowFromId(winid);
    if (!win) return;

    win.title = title;
    if (GLFW.active.id == win.id) {
      _emscripten_set_window_title(title);
    }
  },
  setJoystickCallback: (cbfun) => {
    var prevcbfun = GLFW.joystickFunc;
    GLFW.joystickFunc = cbfun;
    GLFW.refreshJoysticks();
    return prevcbfun;
  },
  joys: {},
  lastGamepadState: [],
  lastGamepadStateFrame: null,
  refreshJoysticks: () => {
    // Produce a new Gamepad API sample if we are ticking a new game frame, or if not using emscripten_set_main_loop() at all to drive animation.
    if (
      MainLoop.currentFrameNumber !== GLFW.lastGamepadStateFrame ||
      !MainLoop.currentFrameNumber
    ) {
      GLFW.lastGamepadState = navigator.getGamepads
        ? navigator.getGamepads()
        : navigator.webkitGetGamepads || [];
      GLFW.lastGamepadStateFrame = MainLoop.currentFrameNumber;

      for (var joy = 0; joy < GLFW.lastGamepadState.length; ++joy) {
        var gamepad = GLFW.lastGamepadState[joy];

        if (gamepad) {
          if (!GLFW.joys[joy]) {
            out('glfw joystick connected:', joy);
            GLFW.joys[joy] = {
              id: stringToNewUTF8(gamepad.id),
              buttonsCount: gamepad.buttons.length,
              axesCount: gamepad.axes.length,
              buttons: _malloc(gamepad.buttons.length),
              axes: _malloc(gamepad.axes.length * 4),
            };

            if (GLFW.joystickFunc) {
              getWasmTableEntry(GLFW.joystickFunc)(joy, 0x00040001); // GLFW_CONNECTED
            }
          }

          var data = GLFW.joys[joy];

          for (var i = 0; i < gamepad.buttons.length; ++i) {
            HEAP8[data.buttons + i] = gamepad.buttons[i].pressed;
          }

          for (var i = 0; i < gamepad.axes.length; ++i) {
            HEAPF32[(data.axes + i * 4) >> 2] = gamepad.axes[i];
          }
        } else {
          if (GLFW.joys[joy]) {
            out('glfw joystick disconnected', joy);

            if (GLFW.joystickFunc) {
              getWasmTableEntry(GLFW.joystickFunc)(joy, 0x00040002); // GLFW_DISCONNECTED
            }

            _free(GLFW.joys[joy].id);
            _free(GLFW.joys[joy].buttons);
            _free(GLFW.joys[joy].axes);

            delete GLFW.joys[joy];
          }
        }
      }
    }
  },
  setKeyCallback: (winid, cbfun) => {
    var win = GLFW.WindowFromId(winid);
    if (!win) return null;
    var prevcbfun = win.keyFunc;
    win.keyFunc = cbfun;
    return prevcbfun;
  },
  setCharCallback: (winid, cbfun) => {
    var win = GLFW.WindowFromId(winid);
    if (!win) return null;
    var prevcbfun = win.charFunc;
    win.charFunc = cbfun;
    return prevcbfun;
  },
  setMouseButtonCallback: (winid, cbfun) => {
    var win = GLFW.WindowFromId(winid);
    if (!win) return null;
    var prevcbfun = win.mouseButtonFunc;
    win.mouseButtonFunc = cbfun;
    return prevcbfun;
  },
  setCursorPosCallback: (winid, cbfun) => {
    var win = GLFW.WindowFromId(winid);
    if (!win) return null;
    var prevcbfun = win.cursorPosFunc;
    win.cursorPosFunc = cbfun;
    return prevcbfun;
  },
  setScrollCallback: (winid, cbfun) => {
    var win = GLFW.WindowFromId(winid);
    if (!win) return null;
    var prevcbfun = win.scrollFunc;
    win.scrollFunc = cbfun;
    return prevcbfun;
  },
  setDropCallback: (winid, cbfun) => {
    var win = GLFW.WindowFromId(winid);
    if (!win) return null;
    var prevcbfun = win.dropFunc;
    win.dropFunc = cbfun;
    return prevcbfun;
  },
  onDrop: (event) => {
    if (!GLFW.active || !GLFW.active.dropFunc) return;
    if (
      !event.dataTransfer ||
      !event.dataTransfer.files ||
      event.dataTransfer.files.length == 0
    )
      return;

    event.preventDefault();

    var drop_dir = '.glfw_dropped_files';
    var filenames = _malloc(event.dataTransfer.files.length * 4);
    var filenamesArray = [];
    for (var i = 0; i < event.dataTransfer.files.length; ++i) {
      var path = `/${drop_dir}/${event.dataTransfer.files[i].name.replace(/\//g, '_')}`;
      var filename = stringToNewUTF8(path);
      filenamesArray.push(filename);
      HEAPU32[(filenames + i * 4) >> 2] = filename;
    }

    // Read and save the files to emscripten's FS
    var written = 0;
    FS.createPath('/', drop_dir);

    function save(file, in_path, numfiles) {
      var path = '/' + drop_dir + in_path + '/' + file.name.replace(/\//g, '_');
      var reader = new FileReader();
      reader.onloadend = (e) => {
        if (reader.readyState != 2) {
          // not DONE
          ++written;
          err(
            `failed to read dropped file: ${in_path}/${file.name}: ${reader.error}`
          );
          return;
        }

        var data = e.target.result;
        FS.writeFile(path, new Uint8Array(data));
        if (++written === numfiles) {
          getWasmTableEntry(GLFW.active.dropFunc)(
            GLFW.active.id,
            filenamesArray.length,
            filenames
          );

          for (var i = 0; i < filenamesArray.length; ++i) {
            _free(filenamesArray[i]);
          }
          _free(filenames);
        }
      };
      reader.readAsArrayBuffer(file);
    }

    let filesQ = [];
    function finalize() {
      var count = filesQ.length;
      for (var i = 0; i < count; ++i) {
        save(filesQ[i].file, filesQ[i].path, count);
      }
    }

    if (DataTransferItem.prototype.webkitGetAsEntry) {
      let entriesTree = {};
      function markDone(fullpath, recursive) {
        if (entriesTree[fullpath].subpaths.length != 0) return;
        delete entriesTree[fullpath];
        let parentpath = fullpath.substring(0, fullpath.lastIndexOf('/'));
        if (!entriesTree.hasOwnProperty(parentpath)) {
          if (Object.keys(entriesTree).length == 0) finalize();
          return;
        }
        const fpIndex = entriesTree[parentpath].subpaths.indexOf(fullpath);
        if (fpIndex > -1) entriesTree[parentpath].subpaths.splice(fpIndex, 1);
        if (recursive) markDone(parentpath, true);
        if (Object.keys(entriesTree).length == 0) finalize();
      }
      function processEntry(entry) {
        let fp = entry.fullPath;
        let pp = fp.substring(0, fp.lastIndexOf('/'));
        entriesTree[fp] = { subpaths: [] };
        if (entry.isFile) {
          entry.file((f) => {
            filesQ.push({ file: f, path: pp });
            markDone(fp, false);
          });
        } else if (entry.isDirectory) {
          if (entriesTree.hasOwnProperty(pp)) entriesTree[pp].subpaths.push(fp);
          FS.createPath('/' + drop_dir + pp, entry.name);
          var reader = entry.createReader();
          var rRead = function (dirEntries) {
            if (dirEntries.length == 0) {
              markDone(fp, true);
              return;
            }
            for (const ent of dirEntries) processEntry(ent);
            reader.readEntries(rRead);
          };
          reader.readEntries(rRead);
        }
      }
      for (const item of event.dataTransfer.items) {
        processEntry(item.webkitGetAsEntry());
      }
    } else {
      // fallback for browsers that does not support webkitGetAsEntry
      for (const file of event.dataTransfer.files) {
        filesQ.push({ file: file, path: '' });
      }
      finalize();
    }

    return false;
  },
  onDragover: (event) => {
    if (!GLFW.active || !GLFW.active.dropFunc) return;

    event.preventDefault();
    return false;
  },
  setWindowSizeCallback: (winid, cbfun) => {
    var win = GLFW.WindowFromId(winid);
    if (!win) return null;
    var prevcbfun = win.windowSizeFunc;
    win.windowSizeFunc = cbfun;

    return prevcbfun;
  },
  setWindowCloseCallback: (winid, cbfun) => {
    var win = GLFW.WindowFromId(winid);
    if (!win) return null;
    var prevcbfun = win.windowCloseFunc;
    win.windowCloseFunc = cbfun;
    return prevcbfun;
  },
  setWindowRefreshCallback: (winid, cbfun) => {
    var win = GLFW.WindowFromId(winid);
    if (!win) return null;
    var prevcbfun = win.windowRefreshFunc;
    win.windowRefreshFunc = cbfun;
    return prevcbfun;
  },
  onClickRequestPointerLock: (e) => {
    var canvas = Browser.getCanvas();
    if (!Browser.pointerLock && canvas.requestPointerLock) {
      canvas.requestPointerLock();
      e.preventDefault();
    }
  },
  setInputMode: (winid, mode, value) => {
    var win = GLFW.WindowFromId(winid);
    if (!win) return;

    switch (mode) {
      case 0x00033001: {
        // GLFW_CURSOR
        var canvas = Browser.getCanvas();
        switch (value) {
          case 0x00034001: {
            // GLFW_CURSOR_NORMAL
            win.inputModes[mode] = value;
            canvas.removeEventListener(
              'click',
              GLFW.onClickRequestPointerLock,
              true
            );
            document.exitPointerLock();
            break;
          }
          case 0x00034002: {
            // GLFW_CURSOR_HIDDEN
            err(
              'glfwSetInputMode called with GLFW_CURSOR_HIDDEN value not implemented'
            );
            break;
          }
          case 0x00034003: {
            // GLFW_CURSOR_DISABLED
            win.inputModes[mode] = value;
            canvas.addEventListener(
              'click',
              GLFW.onClickRequestPointerLock,
              true
            );
            canvas.requestPointerLock();
            break;
          }
          default: {
            err(
              `glfwSetInputMode called with unknown value parameter value: ${value}`
            );
            break;
          }
        }
        break;
      }
      case 0x00033002: {
        // GLFW_STICKY_KEYS
        err(
          'glfwSetInputMode called with GLFW_STICKY_KEYS mode not implemented'
        );
        break;
      }
      case 0x00033003: {
        // GLFW_STICKY_MOUSE_BUTTONS
        err(
          'glfwSetInputMode called with GLFW_STICKY_MOUSE_BUTTONS mode not implemented'
        );
        break;
      }
      case 0x00033004: {
        // GLFW_LOCK_KEY_MODS
        err(
          'glfwSetInputMode called with GLFW_LOCK_KEY_MODS mode not implemented'
        );
        break;
      }
      case 0x00033005: {
        // GLFW_RAW_MOUSE_MOTION
        err(
          'glfwSetInputMode called with GLFW_RAW_MOUSE_MOTION mode not implemented'
        );
        break;
      }
      default: {
        err(
          `glfwSetInputMode called with unknown mode parameter value: ${mode}`
        );
        break;
      }
    }
  },
  getKey: (winid, key) => {
    var win = GLFW.WindowFromId(winid);
    if (!win) return 0;
    return win.keys[key];
  },
  getMouseButton: (winid, button) => {
    var win = GLFW.WindowFromId(winid);
    if (!win) return 0;
    return (win.buttons & (1 << button)) > 0;
  },
  getCursorPos: (winid, x, y) => {
    HEAPF64[x >> 3] = Browser.mouseX;
    HEAPF64[y >> 3] = Browser.mouseY;
  },
  getMousePos: (winid, x, y) => {
    HEAP32[x >> 2] = Browser.mouseX;
    HEAP32[y >> 2] = Browser.mouseY;
  },
  setCursorPos: (winid, x, y) => {},
  getWindowPos: (winid, x, y) => {
    var wx = 0;
    var wy = 0;

    var win = GLFW.WindowFromId(winid);
    if (win) {
      wx = win.x;
      wy = win.y;
    }

    if (x) {
      HEAP32[x >> 2] = wx;
    }

    if (y) {
      HEAP32[y >> 2] = wy;
    }
  },
  setWindowPos: (winid, x, y) => {
    var win = GLFW.WindowFromId(winid);
    if (!win) return;
    win.x = x;
    win.y = y;
  },
  getWindowSize: (winid, width, height) => {
    var ww = 0;
    var wh = 0;

    var win = GLFW.WindowFromId(winid);
    if (win) {
      ww = win.width;
      wh = win.height;
    }

    if (width) {
      HEAP32[width >> 2] = ww;
    }

    if (height) {
      HEAP32[height >> 2] = wh;
    }
  },
  setWindowSize: (winid, width, height) => {
    var win = GLFW.WindowFromId(winid);
    if (!win) return;

    if (GLFW.active.id == win.id) {
      Browser.setCanvasSize(width, height); // triggers the listener (onCanvasResize) + windowSizeFunc
    }
  },
  defaultWindowHints: () => {
    GLFW.hints = { ...GLFW.defaultHints };
  },
  createWindow: (width, height, title, monitor, share) => {
    var i, id;
    for (i = 0; i < GLFW.windows.length && GLFW.windows[i] !== null; i++) {
      // no-op
    }
    if (i > 0)
      abort('glfwCreateWindow only supports one window at time currently');

    // id for window
    id = i + 1;

    // not valid
    if (width <= 0 || height <= 0) return 0;

    if (monitor) {
      Browser.requestFullscreen();
    } else {
      Browser.setCanvasSize(width, height);
    }

    // Create context when there are no existing alive windows
    for (i = 0; i < GLFW.windows.length && GLFW.windows[i] == null; i++) {
      // no-op
    }

    const canvas = Browser.getCanvas();

    var useWebGL = GLFW.hints[0x00022001] > 0; // Use WebGL when we are told to based on GLFW_CLIENT_API
    if (i == GLFW.windows.length) {
      if (useWebGL) {
        var contextAttributes = {
          antialias: GLFW.hints[0x0002100d] > 1, // GLFW_SAMPLES
          depth: GLFW.hints[0x00021005] > 0, // GLFW_DEPTH_BITS
          stencil: GLFW.hints[0x00021006] > 0, // GLFW_STENCIL_BITS
          alpha: GLFW.hints[0x00021004] > 0, // GLFW_ALPHA_BITS
        };
        Browser.createContext(
          canvas,
          /*useWebGL=*/ true,
          /*setInModule=*/ true,
          contextAttributes
        );
      } else {
        Browser.init();
      }
    }

    // If context creation failed, do not return a valid window
    if (!Module['ctx'] && useWebGL) return 0;

    // Initializes the framebuffer size from the canvas
    var win = new GLFW_Window(
      id,
      width,
      height,
      canvas.width,
      canvas.height,
      title,
      monitor,
      share
    );

    // Set window to array
    if (id - 1 == GLFW.windows.length) {
      GLFW.windows.push(win);
    } else {
      GLFW.windows[id - 1] = win;
    }

    GLFW.active = win;
    GLFW.adjustCanvasDimensions();
    return win.id;
  },
  destroyWindow: (winid) => {
    var win = GLFW.WindowFromId(winid);
    if (!win) return;

    if (win.windowCloseFunc) {
      getWasmTableEntry(win.windowCloseFunc)(win.id);
    }

    GLFW.windows[win.id - 1] = null;
    if (GLFW.active.id == win.id) {
      GLFW.active = null;
    }

    // Destroy context when no alive windows
    for (win of GLFW.windows) {
      if (win !== null) return;
    }

    delete Module['ctx'];
  },
  swapBuffers: (winid) => {},
  requestFullscreen(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 = Browser.getCanvas();
    function fullscreenChange() {
      Browser.isFullscreen = false;
      var canvasContainer = canvas.parentNode;
      if (getFullscreenElement() === canvasContainer) {
        canvas.exitFullscreen = Browser.exitFullscreen;
        if (Browser.lockPointer) canvas.requestPointerLock();
        Browser.isFullscreen = true;
        if (Browser.resizeCanvas) {
          Browser.setFullscreenCanvasSize();
        } else {
          Browser.updateCanvasDimensions(canvas);
          Browser.updateResizeListeners();
        }
      } else {
        // remove the full screen specific parent of the canvas again to restore the HTML structure from before going full screen
        canvasContainer.parentNode.insertBefore(canvas, canvasContainer);
        canvasContainer.parentNode.removeChild(canvasContainer);

        if (Browser.resizeCanvas) {
          Browser.setWindowedCanvasSize();
        } else {
          Browser.updateCanvasDimensions(canvas);
          Browser.updateResizeListeners();
        }
      }
      Module['onFullScreen']?.(Browser.isFullscreen);
      Module['onFullscreen']?.(Browser.isFullscreen);
    }

    if (!Browser.fullscreenHandlersInstalled) {
      Browser.fullscreenHandlersInstalled = true;
      document.addEventListener('fullscreenchange', fullscreenChange, false);
      document.addEventListener('mozfullscreenchange', fullscreenChange, false);
      document.addEventListener(
        'webkitfullscreenchange',
        fullscreenChange,
        false
      );
      document.addEventListener('MSFullscreenChange', fullscreenChange, false);
    }

    // create a new parent to ensure the canvas has no siblings. this allows browsers to optimize full screen performance when its parent is the full screen root
    var canvasContainer = document.createElement('div');
    canvas.parentNode.insertBefore(canvasContainer, canvas);
    canvasContainer.appendChild(canvas);

    // use parent of canvas as full screen root to allow aspect ratio correction (Firefox stretches the root to screen size)
    canvasContainer.requestFullscreen =
      canvasContainer['requestFullscreen'] ||
      canvasContainer['mozRequestFullScreen'] ||
      canvasContainer['msRequestFullscreen'] ||
      (canvasContainer['webkitRequestFullscreen']
        ? () =>
            canvasContainer['webkitRequestFullscreen'](
              Element['ALLOW_KEYBOARD_INPUT']
            )
        : null) ||
      (canvasContainer['webkitRequestFullScreen']
        ? () =>
            canvasContainer['webkitRequestFullScreen'](
              Element['ALLOW_KEYBOARD_INPUT']
            )
        : null);

    canvasContainer.requestFullscreen();
  },
  updateCanvasDimensions(canvas, wNative, hNative) {
    const scale = GLFW.getHiDPIScale();

    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 (
      getFullscreenElement() === 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) {
      wNative = w;
      hNative = h;
    }
    const wNativeScaled = Math.floor(wNative * scale);
    const hNativeScaled = Math.floor(hNative * scale);
    if (canvas.width != wNativeScaled) canvas.width = wNativeScaled;
    if (canvas.height != hNativeScaled) canvas.height = hNativeScaled;
    if (typeof canvas.style != 'undefined') {
      if (!GLFW.isCSSScalingEnabled()) {
        canvas.style.setProperty('width', wNative + 'px', 'important');
        canvas.style.setProperty('height', hNative + 'px', 'important');
      } else {
        canvas.style.removeProperty('width');
        canvas.style.removeProperty('height');
      }
    }
  },
  calculateMouseCoords(pageX, pageY) {
    // Calculate the movement based on the changes
    // in the coordinates.
    const rect = Browser.getCanvas().getBoundingClientRect();

    // Neither .scrollX or .pageXOffset are defined in a spec, but
    // we prefer .scrollX because it is currently in a spec draft.
    // (see: http://www.w3.org/TR/2013/WD-cssom-view-20131217/)
    var scrollX =
      typeof window.scrollX != 'undefined'
        ? window.scrollX
        : window.pageXOffset;
    var scrollY =
      typeof window.scrollY != 'undefined'
        ? window.scrollY
        : window.pageYOffset;
    // If this assert lands, it's likely because the browser doesn't support scrollX or pageXOffset
    // and we have no viable fallback.
    assert(
      typeof scrollX != 'undefined' && typeof scrollY != 'undefined',
      'Unable to retrieve scroll position, mouse positions likely broken.'
    );
    var adjustedX = pageX - (scrollX + rect.left);
    var adjustedY = pageY - (scrollY + rect.top);

    // getBoundingClientRect() returns dimension affected by CSS, so as a result:
    // - when CSS scaling is enabled, this will fix the mouse coordinates to match the width/height of the window
    // - otherwise the CSS width/height are forced to the width/height of the GLFW window (see updateCanvasDimensions),
    //   so there is no need to adjust the position
    if (GLFW.isCSSScalingEnabled() && GLFW.active) {
      adjustedX = adjustedX * (GLFW.active.width / rect.width);
      adjustedY = adjustedY * (GLFW.active.height / rect.height);
    }

    return { x: adjustedX, y: adjustedY };
  },
  setWindowAttrib: (winid, attrib, value) => {
    var win = GLFW.WindowFromId(winid);
    if (!win) return;
    const isHiDPIAware = GLFW.isHiDPIAware();
    win.attributes[attrib] = value;
    if (isHiDPIAware !== GLFW.isHiDPIAware()) GLFW.adjustCanvasDimensions();
  },
  getDevicePixelRatio() {
    return (typeof devicePixelRatio == 'number' && devicePixelRatio) || 1.0;
  },
  isHiDPIAware() {
    if (GLFW.active)
      return GLFW.active.attributes[0x0002200c] > 0; // GLFW_SCALE_TO_MONITOR
    else return false;
  },
  isCSSScalingEnabled() {
    return !GLFW.isHiDPIAware();
  },
  adjustCanvasDimensions() {
    if (GLFW.active) {
      Browser.updateCanvasDimensions(
        Browser.getCanvas(),
        GLFW.active.width,
        GLFW.active.height
      );
      Browser.updateResizeListeners();
    }
  },
  getHiDPIScale() {
    return GLFW.isHiDPIAware() ? GLFW.scale : 1.0;
  },
  onDevicePixelRatioChange() {
    GLFW.onWindowContentScaleChanged(GLFW.getDevicePixelRatio());
    GLFW.adjustCanvasDimensions();
  },
  GLFW2ParamToGLFW3Param: (param) => {
    var table = {
      0x00030001: 0, // GLFW_MOUSE_CURSOR
      0x00030002: 0, // GLFW_STICKY_KEYS
      0x00030003: 0, // GLFW_STICKY_MOUSE_BUTTONS
      0x00030004: 0, // GLFW_SYSTEM_KEYS
      0x00030005: 0, // GLFW_KEY_REPEAT
      0x00030006: 0, // GLFW_AUTO_POLL_EVENTS
      0x00020001: 0, // GLFW_OPENED
      0x00020002: 0, // GLFW_ACTIVE
      0x00020003: 0, // GLFW_ICONIFIED
      0x00020004: 0, // GLFW_ACCELERATED
      0x00020005: 0x00021001, // GLFW_RED_BITS
      0x00020006: 0x00021002, // GLFW_GREEN_BITS
      0x00020007: 0x00021003, // GLFW_BLUE_BITS
      0x00020008: 0x00021004, // GLFW_ALPHA_BITS
      0x00020009: 0x00021005, // GLFW_DEPTH_BITS
      0x0002000a: 0x00021006, // GLFW_STENCIL_BITS
      0x0002000b: 0x0002100f, // GLFW_REFRESH_RATE
      0x0002000c: 0x00021007, // GLFW_ACCUM_RED_BITS
      0x0002000d: 0x00021008, // GLFW_ACCUM_GREEN_BITS
      0x0002000e: 0x00021009, // GLFW_ACCUM_BLUE_BITS
      0x0002000f: 0x0002100a, // GLFW_ACCUM_ALPHA_BITS
      0x00020010: 0x0002100b, // GLFW_AUX_BUFFERS
      0x00020011: 0x0002100c, // GLFW_STEREO
      0x00020012: 0, // GLFW_WINDOW_NO_RESIZE
      0x00020013: 0x0002100d, // GLFW_FSAA_SAMPLES
      0x00020014: 0x00022002, // GLFW_OPENGL_VERSION_MAJOR
      0x00020015: 0x00022003, // GLFW_OPENGL_VERSION_MINOR
      0x00020016: 0x00022006, // GLFW_OPENGL_FORWARD_COMPAT
      0x00020017: 0x00022007, // GLFW_OPENGL_DEBUG_CONTEXT
      0x00020018: 0x00022008, // GLFW_OPENGL_PROFILE
    };
    return table[param];
  },
};
var _glfwCreateWindow = (width, height, title, monitor, share) =>
  GLFW.createWindow(width, height, title, monitor, share);

var _glfwDefaultWindowHints = () => GLFW.defaultWindowHints();

var _glfwGetPrimaryMonitor = () => 1;

var _glfwGetTime = () => GLFW.getTime() - GLFW.initialTime;

var _glfwGetVideoModes = (monitor, count) => {
  HEAP32[count >> 2] = 0;
  return 0;
};

var _glfwInit = () => {
  if (GLFW.windows) return 1; // GL_TRUE

  GLFW.initialTime = GLFW.getTime();
  GLFW.defaultWindowHints();
  GLFW.windows = new Array();
  GLFW.active = null;
  GLFW.scale = GLFW.getDevicePixelRatio();

  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);

  // watch for devicePixelRatio changes
  GLFW.devicePixelRatioMQL = window.matchMedia(
    '(resolution: ' + GLFW.getDevicePixelRatio() + 'dppx)'
  );
  GLFW.devicePixelRatioMQL.addEventListener(
    'change',
    GLFW.onDevicePixelRatioChange
  );

  var canvas = Browser.getCanvas();
  canvas.addEventListener('touchmove', GLFW.onMousemove, true);
  canvas.addEventListener('touchstart', GLFW.onMouseButtonDown, true);
  canvas.addEventListener('touchcancel', GLFW.onMouseButtonUp, true);
  canvas.addEventListener('touchend', GLFW.onMouseButtonUp, true);
  canvas.addEventListener('mousemove', GLFW.onMousemove, true);
  canvas.addEventListener('mousedown', GLFW.onMouseButtonDown, true);
  canvas.addEventListener('mouseup', GLFW.onMouseButtonUp, true);
  canvas.addEventListener('wheel', GLFW.onMouseWheel, true);
  canvas.addEventListener('mousewheel', GLFW.onMouseWheel, true);
  canvas.addEventListener('mouseenter', GLFW.onMouseenter, true);
  canvas.addEventListener('mouseleave', GLFW.onMouseleave, true);
  canvas.addEventListener('drop', GLFW.onDrop, true);
  canvas.addEventListener('dragover', GLFW.onDragover, true);

  // Overriding implementation to account for HiDPI
  Browser.requestFullscreen = GLFW.requestFullscreen;
  Browser.calculateMouseCoords = GLFW.calculateMouseCoords;
  Browser.updateCanvasDimensions = GLFW.updateCanvasDimensions;

  Browser.resizeListeners.push((width, height) => {
    if (GLFW.isHiDPIAware()) {
      var canvas = Browser.getCanvas();
      GLFW.onCanvasResize(
        canvas.clientWidth,
        canvas.clientHeight,
        width,
        height
      );
    } else {
      GLFW.onCanvasResize(width, height, width, height);
    }
  });

  return 1; // GL_TRUE
};

var _glfwMakeContextCurrent = (winid) => 0;

var _glfwSetCharCallback = (winid, cbfun) => GLFW.setCharCallback(winid, cbfun);

var _glfwSetCursorEnterCallback = (winid, cbfun) => {
  var win = GLFW.WindowFromId(winid);
  if (!win) return null;
  var prevcbfun = win.cursorEnterFunc;
  win.cursorEnterFunc = cbfun;
  return prevcbfun;
};

var _glfwSetCursorPosCallback = (winid, cbfun) =>
  GLFW.setCursorPosCallback(winid, cbfun);

var _glfwSetDropCallback = (winid, cbfun) => GLFW.setDropCallback(winid, cbfun);

var _glfwSetErrorCallback = (cbfun) => {
  var prevcbfun = GLFW.errorFunc;
  GLFW.errorFunc = cbfun;
  return prevcbfun;
};

var _glfwSetKeyCallback = (winid, cbfun) => GLFW.setKeyCallback(winid, cbfun);

var _glfwSetMouseButtonCallback = (winid, cbfun) =>
  GLFW.setMouseButtonCallback(winid, cbfun);

var _glfwSetScrollCallback = (winid, cbfun) =>
  GLFW.setScrollCallback(winid, cbfun);

var _glfwSetWindowContentScaleCallback = (winid, cbfun) => {
  var win = GLFW.WindowFromId(winid);
  if (!win) return null;
  var prevcbfun = win.windowContentScaleFunc;
  win.windowContentScaleFunc = cbfun;
  return prevcbfun;
};

var _glfwSetWindowFocusCallback = (winid, cbfun) => {
  var win = GLFW.WindowFromId(winid);
  if (!win) return null;
  var prevcbfun = win.windowFocusFunc;
  win.windowFocusFunc = cbfun;
  return prevcbfun;
};

var _glfwSetWindowIconifyCallback = (winid, cbfun) => {
  var win = GLFW.WindowFromId(winid);
  if (!win) return null;
  var prevcbfun = win.windowIconifyFunc;
  win.windowIconifyFunc = cbfun;
  return prevcbfun;
};

var _glfwSetWindowShouldClose = (winid, value) => {
  var win = GLFW.WindowFromId(winid);
  if (!win) return;
  win.shouldClose = value;
};

var _glfwSetWindowSize = (winid, width, height) =>
  GLFW.setWindowSize(winid, width, height);

var _glfwSetWindowSizeCallback = (winid, cbfun) =>
  GLFW.setWindowSizeCallback(winid, cbfun);

var _glfwSwapBuffers = (winid) => GLFW.swapBuffers(winid);

var _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);
  var canvas = Browser.getCanvas();
  canvas.removeEventListener('touchmove', GLFW.onMousemove, true);
  canvas.removeEventListener('touchstart', GLFW.onMouseButtonDown, true);
  canvas.removeEventListener('touchcancel', GLFW.onMouseButtonUp, true);
  canvas.removeEventListener('touchend', GLFW.onMouseButtonUp, true);
  canvas.removeEventListener('mousemove', GLFW.onMousemove, true);
  canvas.removeEventListener('mousedown', GLFW.onMouseButtonDown, true);
  canvas.removeEventListener('mouseup', GLFW.onMouseButtonUp, true);
  canvas.removeEventListener('wheel', GLFW.onMouseWheel, true);
  canvas.removeEventListener('mousewheel', GLFW.onMouseWheel, true);
  canvas.removeEventListener('mouseenter', GLFW.onMouseenter, true);
  canvas.removeEventListener('mouseleave', GLFW.onMouseleave, true);
  canvas.removeEventListener('drop', GLFW.onDrop, true);
  canvas.removeEventListener('dragover', GLFW.onDragover, true);

  if (GLFW.devicePixelRatioMQL)
    GLFW.devicePixelRatioMQL.removeEventListener(
      'change',
      GLFW.onDevicePixelRatioChange
    );

  canvas.width = canvas.height = 1;
  GLFW.windows = null;
  GLFW.active = null;
};

var _glfwWindowHint = (target, hint) => {
  GLFW.hints[target] = hint;
};

var requestFullscreen = Browser.requestFullscreen;

FS.createPreloadedFile = FS_createPreloadedFile;
FS.preloadFile = FS_preloadFile;
FS.staticInit();
for (let i = 0; i < 32; ++i) tempFixedLengthArray.push(new Array(i));
var miniTempWebGLFloatBuffersStorage = new Float32Array(288);
// Create GL_POOL_TEMP_BUFFERS_SIZE+1 temporary buffers, for uploads of size 0 through GL_POOL_TEMP_BUFFERS_SIZE inclusive
for (/**@suppress{duplicate}*/ var i = 0; i <= 288; ++i) {
  miniTempWebGLFloatBuffers[i] = miniTempWebGLFloatBuffersStorage.subarray(
    0,
    i
  );
}
var miniTempWebGLIntBuffersStorage = new Int32Array(288);
// Create GL_POOL_TEMP_BUFFERS_SIZE+1 temporary buffers, for uploads of size 0 through GL_POOL_TEMP_BUFFERS_SIZE inclusive
for (/**@suppress{duplicate}*/ var i = 0; i <= 288; ++i) {
  miniTempWebGLIntBuffers[i] = miniTempWebGLIntBuffersStorage.subarray(0, i);
}

Module['requestAnimationFrame'] = MainLoop.requestAnimationFrame;
Module['pauseMainLoop'] = MainLoop.pause;
Module['resumeMainLoop'] = MainLoop.resume;
MainLoop.init();
// End JS library code

// include: postlibrary.js
// This file is included after the automatically-generated JS library code
// but before the wasm module is created.

{
  // Begin ATMODULES hooks
  if (Module['noExitRuntime']) noExitRuntime = Module['noExitRuntime'];
  if (Module['preloadPlugins']) preloadPlugins = Module['preloadPlugins'];
  if (Module['print']) out = Module['print'];
  if (Module['printErr']) err = Module['printErr'];
  if (Module['wasmBinary']) wasmBinary = Module['wasmBinary'];
  // End ATMODULES hooks

  checkIncomingModuleAPI();

  if (Module['arguments']) arguments_ = Module['arguments'];
  if (Module['thisProgram']) thisProgram = Module['thisProgram'];

  // Assertions on removed incoming Module JS APIs.
  assert(
    typeof Module['memoryInitializerPrefixURL'] == 'undefined',
    'Module.memoryInitializerPrefixURL option was removed, use Module.locateFile instead'
  );
  assert(
    typeof Module['pthreadMainPrefixURL'] == 'undefined',
    'Module.pthreadMainPrefixURL option was removed, use Module.locateFile instead'
  );
  assert(
    typeof Module['cdInitializerPrefixURL'] == 'undefined',
    'Module.cdInitializerPrefixURL option was removed, use Module.locateFile instead'
  );
  assert(
    typeof Module['filePackagePrefixURL'] == 'undefined',
    'Module.filePackagePrefixURL option was removed, use Module.locateFile instead'
  );
  assert(
    typeof Module['read'] == 'undefined',
    'Module.read option was removed'
  );
  assert(
    typeof Module['readAsync'] == 'undefined',
    'Module.readAsync option was removed (modify readAsync in JS)'
  );
  assert(
    typeof Module['readBinary'] == 'undefined',
    'Module.readBinary option was removed (modify readBinary in JS)'
  );
  assert(
    typeof Module['setWindowTitle'] == 'undefined',
    'Module.setWindowTitle option was removed (modify emscripten_set_window_title in JS)'
  );
  assert(
    typeof Module['TOTAL_MEMORY'] == 'undefined',
    'Module.TOTAL_MEMORY has been renamed Module.INITIAL_MEMORY'
  );
  assert(
    typeof Module['ENVIRONMENT'] == 'undefined',
    'Module.ENVIRONMENT has been deprecated. To force the environment, use the ENVIRONMENT compile-time option (for example, -sENVIRONMENT=web or -sENVIRONMENT=node)'
  );
  assert(
    typeof Module['STACK_SIZE'] == 'undefined',
    'STACK_SIZE can no longer be set at runtime.  Use -sSTACK_SIZE at link time'
  );
  // If memory is defined in wasm, the user can't provide it, or set INITIAL_MEMORY
  assert(
    typeof Module['wasmMemory'] == 'undefined',
    'Use of `wasmMemory` detected.  Use -sIMPORTED_MEMORY to define wasmMemory externally'
  );
  assert(
    typeof Module['INITIAL_MEMORY'] == 'undefined',
    'Detected runtime INITIAL_MEMORY setting.  Use -sIMPORTED_MEMORY to define wasmMemory dynamically'
  );

  if (Module['preInit']) {
    if (typeof Module['preInit'] == 'function')
      Module['preInit'] = [Module['preInit']];
    while (Module['preInit'].length > 0) {
      Module['preInit'].shift()();
    }
  }
  consumedModuleProp('preInit');
}

// Begin runtime exports
Module['requestFullscreen'] = requestFullscreen;
var missingLibrarySymbols = [
  'writeI53ToI64Clamped',
  'writeI53ToI64Signaling',
  'writeI53ToU64Clamped',
  'writeI53ToU64Signaling',
  'convertI32PairToI53',
  'convertI32PairToI53Checked',
  'convertU32PairToI53',
  'stackAlloc',
  'getTempRet0',
  'setTempRet0',
  'createNamedFunction',
  'zeroMemory',
  'withStackSave',
  'inetPton4',
  'inetNtop4',
  'inetPton6',
  'inetNtop6',
  'readSockaddr',
  'writeSockaddr',
  'runMainThreadEmAsm',
  'getExecutableName',
  'autoResumeAudioContext',
  'getDynCaller',
  'dynCall',
  'runtimeKeepalivePush',
  'runtimeKeepalivePop',
  'asmjsMangle',
  'HandleAllocator',
  'addOnInit',
  'addOnPostCtor',
  'addOnPreMain',
  'STACK_SIZE',
  'STACK_ALIGN',
  'POINTER_SIZE',
  'ASSERTIONS',
  'ccall',
  'cwrap',
  'convertJsFunctionToWasm',
  'getEmptyTableSlot',
  'updateTableMap',
  'getFunctionAddress',
  'addFunction',
  'removeFunction',
  'intArrayToString',
  'AsciiToString',
  'stringToAscii',
  'UTF16ToString',
  'stringToUTF16',
  'lengthBytesUTF16',
  'UTF32ToString',
  'stringToUTF32',
  'lengthBytesUTF32',
  'stringToUTF8OnStack',
  'writeArrayToMemory',
  'registerKeyEventCallback',
  'registerWheelEventCallback',
  'fillDeviceOrientationEventData',
  'registerDeviceOrientationEventCallback',
  'fillDeviceMotionEventData',
  'registerDeviceMotionEventCallback',
  'screenOrientation',
  'fillOrientationChangeEventData',
  'registerOrientationChangeEventCallback',
  'JSEvents_requestFullscreen',
  'JSEvents_resizeCanvasForFullscreen',
  'registerRestoreOldStyle',
  'hideEverythingExceptGivenElement',
  'restoreHiddenElements',
  'setLetterbox',
  'softFullscreenResizeWebGLRenderTarget',
  'doRequestFullscreen',
  'registerPointerlockErrorEventCallback',
  'requestPointerLock',
  'registerBeforeUnloadEventCallback',
  'fillBatteryEventData',
  'registerBatteryEventCallback',
  'setCanvasElementSize',
  'getCanvasElementSize',
  'jsStackTrace',
  'getCallstack',
  'convertPCtoSourceLocation',
  'getEnvStrings',
  'wasiRightsToMuslOFlags',
  'wasiOFlagsToMuslOFlags',
  'setImmediateWrapped',
  'safeRequestAnimationFrame',
  'clearImmediateWrapped',
  'registerPostMainLoop',
  'registerPreMainLoop',
  'getPromise',
  'makePromise',
  'idsToPromises',
  'makePromiseCallback',
  'ExceptionInfo',
  'findMatchingCatch',
  'Browser_asyncPrepareDataCounter',
  'isLeapYear',
  'ydayFromDate',
  'arraySum',
  'addDays',
  'getSocketFromFD',
  'getSocketAddress',
  'FS_mkdirTree',
  '_setNetworkCallback',
  'writeGLArray',
  'registerWebGlEventCallback',
  'runAndAbortIfError',
  'ALLOC_NORMAL',
  'ALLOC_STACK',
  'allocate',
  'writeStringToMemory',
  'writeAsciiToMemory',
  'allocateUTF8',
  'allocateUTF8OnStack',
  'demangle',
  'stackTrace',
  'getNativeTypeSize',
];
missingLibrarySymbols.forEach(missingLibrarySymbol);

var unexportedSymbols = [
  'run',
  'out',
  'err',
  'callMain',
  'abort',
  'wasmExports',
  'HEAPF32',
  'HEAPF64',
  'HEAP8',
  'HEAPU8',
  'HEAP16',
  'HEAPU16',
  'HEAP32',
  'HEAPU32',
  'HEAP64',
  'HEAPU64',
  'writeStackCookie',
  'checkStackCookie',
  'writeI53ToI64',
  'readI53FromI64',
  'readI53FromU64',
  'INT53_MAX',
  'INT53_MIN',
  'bigintToI53Checked',
  'stackSave',
  'stackRestore',
  'ptrToString',
  'exitJS',
  'getHeapMax',
  'growMemory',
  'ENV',
  'ERRNO_CODES',
  'strError',
  'DNS',
  'Protocols',
  'Sockets',
  'timers',
  'warnOnce',
  'readEmAsmArgsArray',
  'readEmAsmArgs',
  'runEmAsmFunction',
  'jstoi_q',
  'handleException',
  'keepRuntimeAlive',
  'callUserCallback',
  'maybeExit',
  'asyncLoad',
  'alignMemory',
  'mmapAlloc',
  'wasmTable',
  'wasmMemory',
  'getUniqueRunDependency',
  'noExitRuntime',
  'addRunDependency',
  'removeRunDependency',
  'addOnPreRun',
  'addOnExit',
  'addOnPostRun',
  'freeTableIndexes',
  'functionsInTableMap',
  'setValue',
  'getValue',
  'PATH',
  'PATH_FS',
  'UTF8Decoder',
  'UTF8ArrayToString',
  'UTF8ToString',
  'stringToUTF8Array',
  'stringToUTF8',
  'lengthBytesUTF8',
  'intArrayFromString',
  'UTF16Decoder',
  'stringToNewUTF8',
  'JSEvents',
  'specialHTMLTargets',
  'maybeCStringToJsString',
  'findEventTarget',
  'findCanvasEventTarget',
  'getBoundingClientRect',
  'fillMouseEventData',
  'registerMouseEventCallback',
  'registerUiEventCallback',
  'registerFocusEventCallback',
  'fillFullscreenChangeEventData',
  'registerFullscreenChangeEventCallback',
  'currentFullscreenStrategy',
  'restoreOldWindowedStyle',
  'fillPointerlockChangeEventData',
  'registerPointerlockChangeEventCallback',
  'fillVisibilityChangeEventData',
  'registerVisibilityChangeEventCallback',
  'registerTouchEventCallback',
  'fillGamepadEventData',
  'registerGamepadEventCallback',
  'UNWIND_CACHE',
  'ExitStatus',
  'checkWasiClock',
  'doReadv',
  'doWritev',
  'initRandomFill',
  'randomFill',
  'safeSetTimeout',
  'emSetImmediate',
  'emClearImmediate_deps',
  'emClearImmediate',
  'promiseMap',
  'uncaughtExceptionCount',
  'exceptionLast',
  'exceptionCaught',
  'Browser',
  'requestFullScreen',
  'setCanvasSize',
  'getUserMedia',
  'createContext',
  'getPreloadedImageData__data',
  'wget',
  'MONTH_DAYS_REGULAR',
  'MONTH_DAYS_LEAP',
  'MONTH_DAYS_REGULAR_CUMULATIVE',
  'MONTH_DAYS_LEAP_CUMULATIVE',
  'SYSCALLS',
  'preloadPlugins',
  'FS_createPreloadedFile',
  'FS_preloadFile',
  'FS_modeStringToFlags',
  'FS_getMode',
  'FS_fileDataToTypedArray',
  'FS_stdin_getChar_buffer',
  'FS_stdin_getChar',
  'FS_unlink',
  'FS_createPath',
  'FS_createDevice',
  'FS_readFile',
  'FS',
  'FS_root',
  'FS_mounts',
  'FS_devices',
  'FS_streams',
  'FS_nextInode',
  'FS_nameTable',
  'FS_currentPath',
  'FS_initialized',
  'FS_ignorePermissions',
  'FS_filesystems',
  'FS_syncFSRequests',
  'FS_lookupPath',
  'FS_getPath',
  'FS_hashName',
  'FS_hashAddNode',
  'FS_hashRemoveNode',
  'FS_lookupNode',
  'FS_createNode',
  'FS_destroyNode',
  'FS_isRoot',
  'FS_isMountpoint',
  'FS_isFile',
  'FS_isDir',
  'FS_isLink',
  'FS_isChrdev',
  'FS_isBlkdev',
  'FS_isFIFO',
  'FS_isSocket',
  'FS_flagsToPermissionString',
  'FS_nodePermissions',
  'FS_mayLookup',
  'FS_mayCreate',
  'FS_mayDelete',
  'FS_mayOpen',
  'FS_checkOpExists',
  'FS_nextfd',
  'FS_getStreamChecked',
  'FS_getStream',
  'FS_createStream',
  'FS_closeStream',
  'FS_dupStream',
  'FS_doSetAttr',
  'FS_chrdev_stream_ops',
  'FS_major',
  'FS_minor',
  'FS_makedev',
  'FS_registerDevice',
  'FS_getDevice',
  'FS_getMounts',
  'FS_syncfs',
  'FS_mount',
  'FS_unmount',
  'FS_lookup',
  'FS_mknod',
  'FS_statfs',
  'FS_statfsStream',
  'FS_statfsNode',
  'FS_create',
  'FS_mkdir',
  'FS_mkdev',
  'FS_symlink',
  'FS_rename',
  'FS_rmdir',
  'FS_readdir',
  'FS_readlink',
  'FS_stat',
  'FS_fstat',
  'FS_lstat',
  'FS_doChmod',
  'FS_chmod',
  'FS_lchmod',
  'FS_fchmod',
  'FS_doChown',
  'FS_chown',
  'FS_lchown',
  'FS_fchown',
  'FS_doTruncate',
  'FS_truncate',
  'FS_ftruncate',
  'FS_utime',
  'FS_open',
  'FS_close',
  'FS_isClosed',
  'FS_llseek',
  'FS_read',
  'FS_write',
  'FS_mmap',
  'FS_msync',
  'FS_ioctl',
  'FS_writeFile',
  'FS_cwd',
  'FS_chdir',
  'FS_createDefaultDirectories',
  'FS_createDefaultDevices',
  'FS_createSpecialDirectories',
  'FS_createStandardStreams',
  'FS_staticInit',
  'FS_init',
  'FS_quit',
  'FS_findObject',
  'FS_analyzePath',
  'FS_createFile',
  'FS_createDataFile',
  'FS_forceLoadFile',
  'FS_createLazyFile',
  'MEMFS',
  'TTY',
  'PIPEFS',
  'SOCKFS',
  'tempFixedLengthArray',
  'miniTempWebGLFloatBuffers',
  'miniTempWebGLIntBuffers',
  'heapObjectForWebGLType',
  'toTypedArrayIndex',
  'webgl_enable_ANGLE_instanced_arrays',
  'webgl_enable_OES_vertex_array_object',
  'webgl_enable_WEBGL_draw_buffers',
  'webgl_enable_WEBGL_multi_draw',
  'webgl_enable_EXT_polygon_offset_clamp',
  'webgl_enable_EXT_clip_control',
  'webgl_enable_WEBGL_polygon_mode',
  'GL',
  'emscriptenWebGLGet',
  'computeUnpackAlignedImageSize',
  'colorChannelsInGlTextureFormat',
  'emscriptenWebGLGetTexPixelData',
  'emscriptenWebGLGetUniform',
  'webglGetUniformLocation',
  'webglPrepareUniformLocationsBeforeFirstUse',
  'webglGetLeftBracePos',
  'emscriptenWebGLGetVertexAttrib',
  '__glGetActiveAttribOrUniform',
  'AL',
  'GLUT',
  'EGL',
  'GLEW',
  'IDBStore',
  'SDL',
  'SDL_gfx',
  'GLFW_Window',
  'GLFW',
  'print',
  'printErr',
  'jstoi_s',
];
unexportedSymbols.forEach(unexportedRuntimeSymbol);

// End runtime exports
// Begin JS library exports
// End JS library exports

// end include: postlibrary.js

function checkIncomingModuleAPI() {
  ignoredModuleProp('fetchSettings');
  ignoredModuleProp('logReadFiles');
  ignoredModuleProp('loadSplitModule');
  ignoredModuleProp('onMalloc');
  ignoredModuleProp('onRealloc');
  ignoredModuleProp('onFree');
  ignoredModuleProp('onSbrkGrow');
}
var ASM_CONSTS = {
  88406: () => {
    if (document.fullscreenElement) return 1;
  },
  88452: () => {
    return Module.canvas.width;
  },
  88484: () => {
    return parseInt(Module.canvas.style.width);
  },
  88532: () => {
    document.exitFullscreen();
  },
  88559: () => {
    setTimeout(function () {
      Module.requestFullscreen(false, false);
    }, 100);
  },
  88631: () => {
    if (document.fullscreenElement) return 1;
  },
  88677: () => {
    return Module.canvas.width;
  },
  88709: () => {
    return screen.width;
  },
  88734: () => {
    document.exitFullscreen();
  },
  88761: ($0) => {
    const canvasId = UTF8ToString($0);
    setTimeout(function () {
      Module.requestFullscreen(false, true);
      setTimeout(function () {
        document.querySelector(canvasId).style.width = 'unset';
      }, 100);
    }, 100);
  },
  88955: () => {
    return window.innerWidth;
  },
  88981: () => {
    return window.innerHeight;
  },
  89008: () => {
    if (document.fullscreenElement) return 1;
  },
  89054: () => {
    return Module.canvas.width;
  },
  89086: () => {
    return parseInt(Module.canvas.style.width);
  },
  89134: () => {
    if (document.fullscreenElement) return 1;
  },
  89180: () => {
    return Module.canvas.width;
  },
  89212: () => {
    return screen.width;
  },
  89237: () => {
    return window.innerWidth;
  },
  89263: () => {
    return window.innerHeight;
  },
  89290: () => {
    if (document.fullscreenElement) return 1;
  },
  89336: () => {
    return Module.canvas.width;
  },
  89368: () => {
    return screen.width;
  },
  89393: () => {
    document.exitFullscreen();
  },
  89420: () => {
    if (document.fullscreenElement) return 1;
  },
  89466: () => {
    return Module.canvas.width;
  },
  89498: () => {
    return parseInt(Module.canvas.style.width);
  },
  89546: () => {
    document.exitFullscreen();
  },
  89573: ($0) => {
    Module.canvas.style.opacity = $0;
  },
  89611: () => {
    return screen.width;
  },
  89636: () => {
    return screen.height;
  },
  89662: () => {
    return window.screenX;
  },
  89689: () => {
    return window.screenY;
  },
  89716: () => {
    return window.devicePixelRatio;
  },
  89752: ($0) => {
    navigator.clipboard.writeText(UTF8ToString($0));
  },
  89805: ($0) => {
    Module.canvas.style.cursor = UTF8ToString($0);
  },
  89856: () => {
    Module.canvas.style.cursor = 'none';
  },
  89893: ($0, $1, $2, $3) => {
    try {
      navigator
        .getGamepads()
        [
          $0
        ].vibrationActuator.playEffect('dual-rumble', { startDelay: 0, duration: $3, weakMagnitude: $1, strongMagnitude: $2 });
    } catch (e) {
      try {
        navigator.getGamepads()[$0].hapticActuators[0].pulse($2, $3);
      } catch (e) {}
    }
  },
  90149: ($0) => {
    Module.canvas.style.cursor = UTF8ToString($0);
  },
  90200: () => {
    if (document.pointerLockElement) return 1;
  },
  90247: () => {
    if (document.fullscreenElement) return 1;
  },
  90293: () => {
    return window.innerWidth;
  },
  90319: () => {
    return window.innerHeight;
  },
};
function SetCanvasIdJs(out, outSize) {
  var canvasId = '#' + Module.canvas.id;
  stringToUTF8(canvasId, out, outSize);
}
function __asyncjs__RequestClipboardData() {
  return Asyncify.handleAsync(async () => {
    if (navigator.clipboard && window.isSecureContext) {
      let items = await navigator.clipboard.read();
      for (const item of items) {
        if (item.types.includes('text/plain')) {
          const blob = await item.getType('text/plain');
          const text = await blob.text();
          window._lastClipboardString = text;
        } else if (item.types.find((t) => t.startsWith('image/'))) {
          const blob = await item.getType(
            item.types.find((t) => t.startsWith('image/'))
          );
          const bitmap = await createImageBitmap(blob);
          const canvas = document.createElement('canvas');
          canvas.width = bitmap.width;
          canvas.height = bitmap.height;
          const ctx = canvas.getContext('2d');
          ctx.drawImage(bitmap, 0, 0);
          const imgData = ctx.getImageData(
            0,
            0,
            canvas.width,
            canvas.height
          ).data;
          window._lastImgWidth = canvas.width;
          window._lastImgHeight = canvas.height;
          window._lastImgData = imgData;
        }
      }
    } else console.warn('Clipboard read() requires HTTPS/Localhost');
  });
}
function GetLastPastedText() {
  var str = window._lastClipboardString || '';
  var length = lengthBytesUTF8(str) + 1;
  if (length > 1) {
    var ptr = _malloc(length);
    stringToUTF8(str, ptr, length);
    return ptr;
  }
  return 0;
}
function GetLastPastedImage(width, height) {
  if (window._lastImgData) {
    const data = window._lastImgData;
    if (data.length > 0) {
      const ptr = _malloc(data.length);
      HEAPU8.set(data, ptr);
      if (width) setValue(width, window._lastImgWidth, 'i32');
      if (height) setValue(height, window._lastImgHeight, 'i32');
      window._lastImgData = null;
      return ptr;
    }
  }
  return 0;
}

// Imports from the Wasm binary.
var _malloc = makeInvalidEarlyAccess('_malloc');
var _free = makeInvalidEarlyAccess('_free');
var _main = (Module['_main'] = makeInvalidEarlyAccess('_main'));
var _fflush = makeInvalidEarlyAccess('_fflush');
var _emscripten_stack_get_end = makeInvalidEarlyAccess(
  '_emscripten_stack_get_end'
);
var _emscripten_stack_get_base = makeInvalidEarlyAccess(
  '_emscripten_stack_get_base'
);
var _strerror = makeInvalidEarlyAccess('_strerror');
var _emscripten_stack_init = makeInvalidEarlyAccess('_emscripten_stack_init');
var _emscripten_stack_get_free = makeInvalidEarlyAccess(
  '_emscripten_stack_get_free'
);
var __emscripten_stack_restore = makeInvalidEarlyAccess(
  '__emscripten_stack_restore'
);
var __emscripten_stack_alloc = makeInvalidEarlyAccess(
  '__emscripten_stack_alloc'
);
var _emscripten_stack_get_current = makeInvalidEarlyAccess(
  '_emscripten_stack_get_current'
);
var memory = makeInvalidEarlyAccess('memory');
var __indirect_function_table = makeInvalidEarlyAccess(
  '__indirect_function_table'
);
var wasmMemory = makeInvalidEarlyAccess('wasmMemory');
var wasmTable = makeInvalidEarlyAccess('wasmTable');

function assignWasmExports(wasmExports) {
  assert(
    typeof wasmExports['malloc'] != 'undefined',
    'missing Wasm export: malloc'
  );
  assert(
    typeof wasmExports['free'] != 'undefined',
    'missing Wasm export: free'
  );
  assert(
    typeof wasmExports['main'] != 'undefined',
    'missing Wasm export: main'
  );
  assert(
    typeof wasmExports['fflush'] != 'undefined',
    'missing Wasm export: fflush'
  );
  assert(
    typeof wasmExports['emscripten_stack_get_end'] != 'undefined',
    'missing Wasm export: emscripten_stack_get_end'
  );
  assert(
    typeof wasmExports['emscripten_stack_get_base'] != 'undefined',
    'missing Wasm export: emscripten_stack_get_base'
  );
  assert(
    typeof wasmExports['strerror'] != 'undefined',
    'missing Wasm export: strerror'
  );
  assert(
    typeof wasmExports['emscripten_stack_init'] != 'undefined',
    'missing Wasm export: emscripten_stack_init'
  );
  assert(
    typeof wasmExports['emscripten_stack_get_free'] != 'undefined',
    'missing Wasm export: emscripten_stack_get_free'
  );
  assert(
    typeof wasmExports['_emscripten_stack_restore'] != 'undefined',
    'missing Wasm export: _emscripten_stack_restore'
  );
  assert(
    typeof wasmExports['_emscripten_stack_alloc'] != 'undefined',
    'missing Wasm export: _emscripten_stack_alloc'
  );
  assert(
    typeof wasmExports['emscripten_stack_get_current'] != 'undefined',
    'missing Wasm export: emscripten_stack_get_current'
  );
  assert(
    typeof wasmExports['memory'] != 'undefined',
    'missing Wasm export: memory'
  );
  assert(
    typeof wasmExports['__indirect_function_table'] != 'undefined',
    'missing Wasm export: __indirect_function_table'
  );
  _malloc = createExportWrapper('malloc', 1);
  _free = createExportWrapper('free', 1);
  _main = Module['_main'] = createExportWrapper('main', 2);
  _fflush = createExportWrapper('fflush', 1);
  _emscripten_stack_get_end = wasmExports['emscripten_stack_get_end'];
  _emscripten_stack_get_base = wasmExports['emscripten_stack_get_base'];
  _strerror = createExportWrapper('strerror', 1);
  _emscripten_stack_init = wasmExports['emscripten_stack_init'];
  _emscripten_stack_get_free = wasmExports['emscripten_stack_get_free'];
  __emscripten_stack_restore = wasmExports['_emscripten_stack_restore'];
  __emscripten_stack_alloc = wasmExports['_emscripten_stack_alloc'];
  _emscripten_stack_get_current = wasmExports['emscripten_stack_get_current'];
  memory = wasmMemory = wasmExports['memory'];
  __indirect_function_table = wasmTable =
    wasmExports['__indirect_function_table'];
}

var wasmImports = {
  /** @export */
  SetCanvasIdJs,
  /** @export */
  __assert_fail: ___assert_fail,
  /** @export */
  __syscall_faccessat: ___syscall_faccessat,
  /** @export */
  __syscall_fcntl64: ___syscall_fcntl64,
  /** @export */
  __syscall_getcwd: ___syscall_getcwd,
  /** @export */
  __syscall_ioctl: ___syscall_ioctl,
  /** @export */
  __syscall_openat: ___syscall_openat,
  /** @export */
  _abort_js: __abort_js,
  /** @export */
  clock_time_get: _clock_time_get,
  /** @export */
  emscripten_asm_const_double: _emscripten_asm_const_double,
  /** @export */
  emscripten_asm_const_int: _emscripten_asm_const_int,
  /** @export */
  emscripten_date_now: _emscripten_date_now,
  /** @export */
  emscripten_get_element_css_size: _emscripten_get_element_css_size,
  /** @export */
  emscripten_get_gamepad_status: _emscripten_get_gamepad_status,
  /** @export */
  emscripten_get_now: _emscripten_get_now,
  /** @export */
  emscripten_get_num_gamepads: _emscripten_get_num_gamepads,
  /** @export */
  emscripten_glActiveTexture: _emscripten_glActiveTexture,
  /** @export */
  emscripten_glAttachShader: _emscripten_glAttachShader,
  /** @export */
  emscripten_glBeginQueryEXT: _emscripten_glBeginQueryEXT,
  /** @export */
  emscripten_glBindAttribLocation: _emscripten_glBindAttribLocation,
  /** @export */
  emscripten_glBindBuffer: _emscripten_glBindBuffer,
  /** @export */
  emscripten_glBindFramebuffer: _emscripten_glBindFramebuffer,
  /** @export */
  emscripten_glBindRenderbuffer: _emscripten_glBindRenderbuffer,
  /** @export */
  emscripten_glBindTexture: _emscripten_glBindTexture,
  /** @export */
  emscripten_glBindVertexArrayOES: _emscripten_glBindVertexArrayOES,
  /** @export */
  emscripten_glBlendColor: _emscripten_glBlendColor,
  /** @export */
  emscripten_glBlendEquation: _emscripten_glBlendEquation,
  /** @export */
  emscripten_glBlendEquationSeparate: _emscripten_glBlendEquationSeparate,
  /** @export */
  emscripten_glBlendFunc: _emscripten_glBlendFunc,
  /** @export */
  emscripten_glBlendFuncSeparate: _emscripten_glBlendFuncSeparate,
  /** @export */
  emscripten_glBufferData: _emscripten_glBufferData,
  /** @export */
  emscripten_glBufferSubData: _emscripten_glBufferSubData,
  /** @export */
  emscripten_glCheckFramebufferStatus: _emscripten_glCheckFramebufferStatus,
  /** @export */
  emscripten_glClear: _emscripten_glClear,
  /** @export */
  emscripten_glClearColor: _emscripten_glClearColor,
  /** @export */
  emscripten_glClearDepthf: _emscripten_glClearDepthf,
  /** @export */
  emscripten_glClearStencil: _emscripten_glClearStencil,
  /** @export */
  emscripten_glClipControlEXT: _emscripten_glClipControlEXT,
  /** @export */
  emscripten_glColorMask: _emscripten_glColorMask,
  /** @export */
  emscripten_glCompileShader: _emscripten_glCompileShader,
  /** @export */
  emscripten_glCompressedTexImage2D: _emscripten_glCompressedTexImage2D,
  /** @export */
  emscripten_glCompressedTexSubImage2D: _emscripten_glCompressedTexSubImage2D,
  /** @export */
  emscripten_glCopyTexImage2D: _emscripten_glCopyTexImage2D,
  /** @export */
  emscripten_glCopyTexSubImage2D: _emscripten_glCopyTexSubImage2D,
  /** @export */
  emscripten_glCreateProgram: _emscripten_glCreateProgram,
  /** @export */
  emscripten_glCreateShader: _emscripten_glCreateShader,
  /** @export */
  emscripten_glCullFace: _emscripten_glCullFace,
  /** @export */
  emscripten_glDeleteBuffers: _emscripten_glDeleteBuffers,
  /** @export */
  emscripten_glDeleteFramebuffers: _emscripten_glDeleteFramebuffers,
  /** @export */
  emscripten_glDeleteProgram: _emscripten_glDeleteProgram,
  /** @export */
  emscripten_glDeleteQueriesEXT: _emscripten_glDeleteQueriesEXT,
  /** @export */
  emscripten_glDeleteRenderbuffers: _emscripten_glDeleteRenderbuffers,
  /** @export */
  emscripten_glDeleteShader: _emscripten_glDeleteShader,
  /** @export */
  emscripten_glDeleteTextures: _emscripten_glDeleteTextures,
  /** @export */
  emscripten_glDeleteVertexArraysOES: _emscripten_glDeleteVertexArraysOES,
  /** @export */
  emscripten_glDepthFunc: _emscripten_glDepthFunc,
  /** @export */
  emscripten_glDepthMask: _emscripten_glDepthMask,
  /** @export */
  emscripten_glDepthRangef: _emscripten_glDepthRangef,
  /** @export */
  emscripten_glDetachShader: _emscripten_glDetachShader,
  /** @export */
  emscripten_glDisable: _emscripten_glDisable,
  /** @export */
  emscripten_glDisableVertexAttribArray: _emscripten_glDisableVertexAttribArray,
  /** @export */
  emscripten_glDrawArrays: _emscripten_glDrawArrays,
  /** @export */
  emscripten_glDrawArraysInstancedANGLE: _emscripten_glDrawArraysInstancedANGLE,
  /** @export */
  emscripten_glDrawBuffersWEBGL: _emscripten_glDrawBuffersWEBGL,
  /** @export */
  emscripten_glDrawElements: _emscripten_glDrawElements,
  /** @export */
  emscripten_glDrawElementsInstancedANGLE:
    _emscripten_glDrawElementsInstancedANGLE,
  /** @export */
  emscripten_glEnable: _emscripten_glEnable,
  /** @export */
  emscripten_glEnableVertexAttribArray: _emscripten_glEnableVertexAttribArray,
  /** @export */
  emscripten_glEndQueryEXT: _emscripten_glEndQueryEXT,
  /** @export */
  emscripten_glFinish: _emscripten_glFinish,
  /** @export */
  emscripten_glFlush: _emscripten_glFlush,
  /** @export */
  emscripten_glFramebufferRenderbuffer: _emscripten_glFramebufferRenderbuffer,
  /** @export */
  emscripten_glFramebufferTexture2D: _emscripten_glFramebufferTexture2D,
  /** @export */
  emscripten_glFrontFace: _emscripten_glFrontFace,
  /** @export */
  emscripten_glGenBuffers: _emscripten_glGenBuffers,
  /** @export */
  emscripten_glGenFramebuffers: _emscripten_glGenFramebuffers,
  /** @export */
  emscripten_glGenQueriesEXT: _emscripten_glGenQueriesEXT,
  /** @export */
  emscripten_glGenRenderbuffers: _emscripten_glGenRenderbuffers,
  /** @export */
  emscripten_glGenTextures: _emscripten_glGenTextures,
  /** @export */
  emscripten_glGenVertexArraysOES: _emscripten_glGenVertexArraysOES,
  /** @export */
  emscripten_glGenerateMipmap: _emscripten_glGenerateMipmap,
  /** @export */
  emscripten_glGetActiveAttrib: _emscripten_glGetActiveAttrib,
  /** @export */
  emscripten_glGetActiveUniform: _emscripten_glGetActiveUniform,
  /** @export */
  emscripten_glGetAttachedShaders: _emscripten_glGetAttachedShaders,
  /** @export */
  emscripten_glGetAttribLocation: _emscripten_glGetAttribLocation,
  /** @export */
  emscripten_glGetBooleanv: _emscripten_glGetBooleanv,
  /** @export */
  emscripten_glGetBufferParameteriv: _emscripten_glGetBufferParameteriv,
  /** @export */
  emscripten_glGetError: _emscripten_glGetError,
  /** @export */
  emscripten_glGetFloatv: _emscripten_glGetFloatv,
  /** @export */
  emscripten_glGetFramebufferAttachmentParameteriv:
    _emscripten_glGetFramebufferAttachmentParameteriv,
  /** @export */
  emscripten_glGetIntegerv: _emscripten_glGetIntegerv,
  /** @export */
  emscripten_glGetProgramInfoLog: _emscripten_glGetProgramInfoLog,
  /** @export */
  emscripten_glGetProgramiv: _emscripten_glGetProgramiv,
  /** @export */
  emscripten_glGetQueryObjecti64vEXT: _emscripten_glGetQueryObjecti64vEXT,
  /** @export */
  emscripten_glGetQueryObjectivEXT: _emscripten_glGetQueryObjectivEXT,
  /** @export */
  emscripten_glGetQueryObjectui64vEXT: _emscripten_glGetQueryObjectui64vEXT,
  /** @export */
  emscripten_glGetQueryObjectuivEXT: _emscripten_glGetQueryObjectuivEXT,
  /** @export */
  emscripten_glGetQueryivEXT: _emscripten_glGetQueryivEXT,
  /** @export */
  emscripten_glGetRenderbufferParameteriv:
    _emscripten_glGetRenderbufferParameteriv,
  /** @export */
  emscripten_glGetShaderInfoLog: _emscripten_glGetShaderInfoLog,
  /** @export */
  emscripten_glGetShaderPrecisionFormat: _emscripten_glGetShaderPrecisionFormat,
  /** @export */
  emscripten_glGetShaderSource: _emscripten_glGetShaderSource,
  /** @export */
  emscripten_glGetShaderiv: _emscripten_glGetShaderiv,
  /** @export */
  emscripten_glGetString: _emscripten_glGetString,
  /** @export */
  emscripten_glGetTexParameterfv: _emscripten_glGetTexParameterfv,
  /** @export */
  emscripten_glGetTexParameteriv: _emscripten_glGetTexParameteriv,
  /** @export */
  emscripten_glGetUniformLocation: _emscripten_glGetUniformLocation,
  /** @export */
  emscripten_glGetUniformfv: _emscripten_glGetUniformfv,
  /** @export */
  emscripten_glGetUniformiv: _emscripten_glGetUniformiv,
  /** @export */
  emscripten_glGetVertexAttribPointerv: _emscripten_glGetVertexAttribPointerv,
  /** @export */
  emscripten_glGetVertexAttribfv: _emscripten_glGetVertexAttribfv,
  /** @export */
  emscripten_glGetVertexAttribiv: _emscripten_glGetVertexAttribiv,
  /** @export */
  emscripten_glHint: _emscripten_glHint,
  /** @export */
  emscripten_glIsBuffer: _emscripten_glIsBuffer,
  /** @export */
  emscripten_glIsEnabled: _emscripten_glIsEnabled,
  /** @export */
  emscripten_glIsFramebuffer: _emscripten_glIsFramebuffer,
  /** @export */
  emscripten_glIsProgram: _emscripten_glIsProgram,
  /** @export */
  emscripten_glIsQueryEXT: _emscripten_glIsQueryEXT,
  /** @export */
  emscripten_glIsRenderbuffer: _emscripten_glIsRenderbuffer,
  /** @export */
  emscripten_glIsShader: _emscripten_glIsShader,
  /** @export */
  emscripten_glIsTexture: _emscripten_glIsTexture,
  /** @export */
  emscripten_glIsVertexArrayOES: _emscripten_glIsVertexArrayOES,
  /** @export */
  emscripten_glLineWidth: _emscripten_glLineWidth,
  /** @export */
  emscripten_glLinkProgram: _emscripten_glLinkProgram,
  /** @export */
  emscripten_glPixelStorei: _emscripten_glPixelStorei,
  /** @export */
  emscripten_glPolygonModeWEBGL: _emscripten_glPolygonModeWEBGL,
  /** @export */
  emscripten_glPolygonOffset: _emscripten_glPolygonOffset,
  /** @export */
  emscripten_glPolygonOffsetClampEXT: _emscripten_glPolygonOffsetClampEXT,
  /** @export */
  emscripten_glQueryCounterEXT: _emscripten_glQueryCounterEXT,
  /** @export */
  emscripten_glReadPixels: _emscripten_glReadPixels,
  /** @export */
  emscripten_glReleaseShaderCompiler: _emscripten_glReleaseShaderCompiler,
  /** @export */
  emscripten_glRenderbufferStorage: _emscripten_glRenderbufferStorage,
  /** @export */
  emscripten_glSampleCoverage: _emscripten_glSampleCoverage,
  /** @export */
  emscripten_glScissor: _emscripten_glScissor,
  /** @export */
  emscripten_glShaderBinary: _emscripten_glShaderBinary,
  /** @export */
  emscripten_glShaderSource: _emscripten_glShaderSource,
  /** @export */
  emscripten_glStencilFunc: _emscripten_glStencilFunc,
  /** @export */
  emscripten_glStencilFuncSeparate: _emscripten_glStencilFuncSeparate,
  /** @export */
  emscripten_glStencilMask: _emscripten_glStencilMask,
  /** @export */
  emscripten_glStencilMaskSeparate: _emscripten_glStencilMaskSeparate,
  /** @export */
  emscripten_glStencilOp: _emscripten_glStencilOp,
  /** @export */
  emscripten_glStencilOpSeparate: _emscripten_glStencilOpSeparate,
  /** @export */
  emscripten_glTexImage2D: _emscripten_glTexImage2D,
  /** @export */
  emscripten_glTexParameterf: _emscripten_glTexParameterf,
  /** @export */
  emscripten_glTexParameterfv: _emscripten_glTexParameterfv,
  /** @export */
  emscripten_glTexParameteri: _emscripten_glTexParameteri,
  /** @export */
  emscripten_glTexParameteriv: _emscripten_glTexParameteriv,
  /** @export */
  emscripten_glTexSubImage2D: _emscripten_glTexSubImage2D,
  /** @export */
  emscripten_glUniform1f: _emscripten_glUniform1f,
  /** @export */
  emscripten_glUniform1fv: _emscripten_glUniform1fv,
  /** @export */
  emscripten_glUniform1i: _emscripten_glUniform1i,
  /** @export */
  emscripten_glUniform1iv: _emscripten_glUniform1iv,
  /** @export */
  emscripten_glUniform2f: _emscripten_glUniform2f,
  /** @export */
  emscripten_glUniform2fv: _emscripten_glUniform2fv,
  /** @export */
  emscripten_glUniform2i: _emscripten_glUniform2i,
  /** @export */
  emscripten_glUniform2iv: _emscripten_glUniform2iv,
  /** @export */
  emscripten_glUniform3f: _emscripten_glUniform3f,
  /** @export */
  emscripten_glUniform3fv: _emscripten_glUniform3fv,
  /** @export */
  emscripten_glUniform3i: _emscripten_glUniform3i,
  /** @export */
  emscripten_glUniform3iv: _emscripten_glUniform3iv,
  /** @export */
  emscripten_glUniform4f: _emscripten_glUniform4f,
  /** @export */
  emscripten_glUniform4fv: _emscripten_glUniform4fv,
  /** @export */
  emscripten_glUniform4i: _emscripten_glUniform4i,
  /** @export */
  emscripten_glUniform4iv: _emscripten_glUniform4iv,
  /** @export */
  emscripten_glUniformMatrix2fv: _emscripten_glUniformMatrix2fv,
  /** @export */
  emscripten_glUniformMatrix3fv: _emscripten_glUniformMatrix3fv,
  /** @export */
  emscripten_glUniformMatrix4fv: _emscripten_glUniformMatrix4fv,
  /** @export */
  emscripten_glUseProgram: _emscripten_glUseProgram,
  /** @export */
  emscripten_glValidateProgram: _emscripten_glValidateProgram,
  /** @export */
  emscripten_glVertexAttrib1f: _emscripten_glVertexAttrib1f,
  /** @export */
  emscripten_glVertexAttrib1fv: _emscripten_glVertexAttrib1fv,
  /** @export */
  emscripten_glVertexAttrib2f: _emscripten_glVertexAttrib2f,
  /** @export */
  emscripten_glVertexAttrib2fv: _emscripten_glVertexAttrib2fv,
  /** @export */
  emscripten_glVertexAttrib3f: _emscripten_glVertexAttrib3f,
  /** @export */
  emscripten_glVertexAttrib3fv: _emscripten_glVertexAttrib3fv,
  /** @export */
  emscripten_glVertexAttrib4f: _emscripten_glVertexAttrib4f,
  /** @export */
  emscripten_glVertexAttrib4fv: _emscripten_glVertexAttrib4fv,
  /** @export */
  emscripten_glVertexAttribDivisorANGLE: _emscripten_glVertexAttribDivisorANGLE,
  /** @export */
  emscripten_glVertexAttribPointer: _emscripten_glVertexAttribPointer,
  /** @export */
  emscripten_glViewport: _emscripten_glViewport,
  /** @export */
  emscripten_resize_heap: _emscripten_resize_heap,
  /** @export */
  emscripten_sample_gamepad_data: _emscripten_sample_gamepad_data,
  /** @export */
  emscripten_set_blur_callback_on_thread:
    _emscripten_set_blur_callback_on_thread,
  /** @export */
  emscripten_set_canvas_element_size: _emscripten_set_canvas_element_size,
  /** @export */
  emscripten_set_click_callback_on_thread:
    _emscripten_set_click_callback_on_thread,
  /** @export */
  emscripten_set_focus_callback_on_thread:
    _emscripten_set_focus_callback_on_thread,
  /** @export */
  emscripten_set_fullscreenchange_callback_on_thread:
    _emscripten_set_fullscreenchange_callback_on_thread,
  /** @export */
  emscripten_set_gamepadconnected_callback_on_thread:
    _emscripten_set_gamepadconnected_callback_on_thread,
  /** @export */
  emscripten_set_gamepaddisconnected_callback_on_thread:
    _emscripten_set_gamepaddisconnected_callback_on_thread,
  /** @export */
  emscripten_set_main_loop: _emscripten_set_main_loop,
  /** @export */
  emscripten_set_mousemove_callback_on_thread:
    _emscripten_set_mousemove_callback_on_thread,
  /** @export */
  emscripten_set_pointerlockchange_callback_on_thread:
    _emscripten_set_pointerlockchange_callback_on_thread,
  /** @export */
  emscripten_set_resize_callback_on_thread:
    _emscripten_set_resize_callback_on_thread,
  /** @export */
  emscripten_set_touchcancel_callback_on_thread:
    _emscripten_set_touchcancel_callback_on_thread,
  /** @export */
  emscripten_set_touchend_callback_on_thread:
    _emscripten_set_touchend_callback_on_thread,
  /** @export */
  emscripten_set_touchmove_callback_on_thread:
    _emscripten_set_touchmove_callback_on_thread,
  /** @export */
  emscripten_set_touchstart_callback_on_thread:
    _emscripten_set_touchstart_callback_on_thread,
  /** @export */
  emscripten_set_visibilitychange_callback_on_thread:
    _emscripten_set_visibilitychange_callback_on_thread,
  /** @export */
  emscripten_set_window_title: _emscripten_set_window_title,
  /** @export */
  exit: _exit,
  /** @export */
  fd_close: _fd_close,
  /** @export */
  fd_read: _fd_read,
  /** @export */
  fd_seek: _fd_seek,
  /** @export */
  fd_write: _fd_write,
  /** @export */
  glActiveTexture: _glActiveTexture,
  /** @export */
  glAttachShader: _glAttachShader,
  /** @export */
  glBindAttribLocation: _glBindAttribLocation,
  /** @export */
  glBindBuffer: _glBindBuffer,
  /** @export */
  glBindTexture: _glBindTexture,
  /** @export */
  glBlendFunc: _glBlendFunc,
  /** @export */
  glBufferData: _glBufferData,
  /** @export */
  glBufferSubData: _glBufferSubData,
  /** @export */
  glClear: _glClear,
  /** @export */
  glClearColor: _glClearColor,
  /** @export */
  glClearDepthf: _glClearDepthf,
  /** @export */
  glCompileShader: _glCompileShader,
  /** @export */
  glCompressedTexImage2D: _glCompressedTexImage2D,
  /** @export */
  glCreateProgram: _glCreateProgram,
  /** @export */
  glCreateShader: _glCreateShader,
  /** @export */
  glCullFace: _glCullFace,
  /** @export */
  glDeleteProgram: _glDeleteProgram,
  /** @export */
  glDeleteShader: _glDeleteShader,
  /** @export */
  glDepthFunc: _glDepthFunc,
  /** @export */
  glDisable: _glDisable,
  /** @export */
  glDrawArrays: _glDrawArrays,
  /** @export */
  glDrawElements: _glDrawElements,
  /** @export */
  glEnable: _glEnable,
  /** @export */
  glEnableVertexAttribArray: _glEnableVertexAttribArray,
  /** @export */
  glFrontFace: _glFrontFace,
  /** @export */
  glGenBuffers: _glGenBuffers,
  /** @export */
  glGenTextures: _glGenTextures,
  /** @export */
  glGetAttribLocation: _glGetAttribLocation,
  /** @export */
  glGetFloatv: _glGetFloatv,
  /** @export */
  glGetProgramInfoLog: _glGetProgramInfoLog,
  /** @export */
  glGetProgramiv: _glGetProgramiv,
  /** @export */
  glGetShaderInfoLog: _glGetShaderInfoLog,
  /** @export */
  glGetShaderiv: _glGetShaderiv,
  /** @export */
  glGetString: _glGetString,
  /** @export */
  glGetUniformLocation: _glGetUniformLocation,
  /** @export */
  glLinkProgram: _glLinkProgram,
  /** @export */
  glPixelStorei: _glPixelStorei,
  /** @export */
  glReadPixels: _glReadPixels,
  /** @export */
  glShaderSource: _glShaderSource,
  /** @export */
  glTexImage2D: _glTexImage2D,
  /** @export */
  glTexParameteri: _glTexParameteri,
  /** @export */
  glUniform1i: _glUniform1i,
  /** @export */
  glUniform4f: _glUniform4f,
  /** @export */
  glUniformMatrix4fv: _glUniformMatrix4fv,
  /** @export */
  glUseProgram: _glUseProgram,
  /** @export */
  glVertexAttribPointer: _glVertexAttribPointer,
  /** @export */
  glViewport: _glViewport,
  /** @export */
  glfwCreateWindow: _glfwCreateWindow,
  /** @export */
  glfwDefaultWindowHints: _glfwDefaultWindowHints,
  /** @export */
  glfwGetPrimaryMonitor: _glfwGetPrimaryMonitor,
  /** @export */
  glfwGetTime: _glfwGetTime,
  /** @export */
  glfwGetVideoModes: _glfwGetVideoModes,
  /** @export */
  glfwInit: _glfwInit,
  /** @export */
  glfwMakeContextCurrent: _glfwMakeContextCurrent,
  /** @export */
  glfwSetCharCallback: _glfwSetCharCallback,
  /** @export */
  glfwSetCursorEnterCallback: _glfwSetCursorEnterCallback,
  /** @export */
  glfwSetCursorPosCallback: _glfwSetCursorPosCallback,
  /** @export */
  glfwSetDropCallback: _glfwSetDropCallback,
  /** @export */
  glfwSetErrorCallback: _glfwSetErrorCallback,
  /** @export */
  glfwSetKeyCallback: _glfwSetKeyCallback,
  /** @export */
  glfwSetMouseButtonCallback: _glfwSetMouseButtonCallback,
  /** @export */
  glfwSetScrollCallback: _glfwSetScrollCallback,
  /** @export */
  glfwSetWindowContentScaleCallback: _glfwSetWindowContentScaleCallback,
  /** @export */
  glfwSetWindowFocusCallback: _glfwSetWindowFocusCallback,
  /** @export */
  glfwSetWindowIconifyCallback: _glfwSetWindowIconifyCallback,
  /** @export */
  glfwSetWindowShouldClose: _glfwSetWindowShouldClose,
  /** @export */
  glfwSetWindowSize: _glfwSetWindowSize,
  /** @export */
  glfwSetWindowSizeCallback: _glfwSetWindowSizeCallback,
  /** @export */
  glfwSwapBuffers: _glfwSwapBuffers,
  /** @export */
  glfwTerminate: _glfwTerminate,
  /** @export */
  glfwWindowHint: _glfwWindowHint,
};

// include: postamble.js
// === Auto-generated postamble setup entry stuff ===

var calledRun;

function callMain() {
  assert(
    runDependencies == 0,
    'cannot call main when async dependencies remain! (listen on Module["onRuntimeInitialized"])'
  );
  assert(
    typeof onPreRuns === 'undefined' || onPreRuns.length == 0,
    'cannot call main when preRun functions remain to be called'
  );

  var entryFunction = _main;

  var argc = 0;
  var argv = 0;

  try {
    var ret = entryFunction(argc, argv);

    // if we're not running an evented main loop, it's time to exit
    exitJS(ret, /* implicit = */ true);
    return ret;
  } catch (e) {
    return handleException(e);
  }
}

function stackCheckInit() {
  // This is normally called automatically during __wasm_call_ctors but need to
  // get these values before even running any of the ctors so we call it redundantly
  // here.
  _emscripten_stack_init();
  // TODO(sbc): Move writeStackCookie to native to to avoid this.
  writeStackCookie();
}

function run() {
  if (runDependencies > 0) {
    dependenciesFulfilled = run;
    return;
  }

  stackCheckInit();

  preRun();

  // a preRun added a dependency, run will be called later
  if (runDependencies > 0) {
    dependenciesFulfilled = run;
    return;
  }

  function doRun() {
    // run may have just been called through dependencies being fulfilled just in this very frame,
    // or while the async setStatus time below was happening
    assert(!calledRun);
    calledRun = true;
    Module['calledRun'] = true;

    if (ABORT) return;

    initRuntime();

    preMain();

    Module['onRuntimeInitialized']?.();
    consumedModuleProp('onRuntimeInitialized');

    var noInitialRun = Module['noInitialRun'] || false;
    if (!noInitialRun) callMain();

    postRun();
  }

  if (Module['setStatus']) {
    Module['setStatus']('Running...');
    setTimeout(() => {
      setTimeout(() => Module['setStatus'](''), 1);
      doRun();
    }, 1);
  } else {
    doRun();
  }
  checkStackCookie();
}

function checkUnflushedContent() {
  // Compiler settings do not allow exiting the runtime, so flushing
  // the streams is not possible. but in ASSERTIONS mode we check
  // if there was something to flush, and if so tell the user they
  // should request that the runtime be exitable.
  // Normally we would not even include flush() at all, but in ASSERTIONS
  // builds we do so just for this check, and here we see if there is any
  // content to flush, that is, we check if there would have been
  // something a non-ASSERTIONS build would have not seen.
  // How we flush the streams depends on whether we are in SYSCALLS_REQUIRE_FILESYSTEM=0
  // mode (which has its own special function for this; otherwise, all
  // the code is inside libc)
  var oldOut = out;
  var oldErr = err;
  var has = false;
  out = err = (x) => {
    has = true;
  };
  try {
    // it doesn't matter if it fails
    _fflush(0);
    // also flush in the JS FS layer
    for (var name of ['stdout', 'stderr']) {
      var info = FS.analyzePath('/dev/' + name);
      if (!info) return;
      var stream = info.object;
      var rdev = stream.rdev;
      var tty = TTY.ttys[rdev];
      if (tty?.output?.length) {
        has = true;
      }
    }
  } catch (e) {}
  out = oldOut;
  err = oldErr;
  if (has) {
    warnOnce(
      'stdio streams had content in them that was not flushed. you should set EXIT_RUNTIME to 1 (see the Emscripten FAQ), or make sure to emit a newline when you printf etc.'
    );
  }
}

var wasmExports;

// With async instantation wasmExports is assigned asynchronously when the
// instance is received.
createWasm();

run();

// end include: postamble.js