var WasmModule = (() => {
  var _scriptName = typeof document != 'undefined' ? document.currentScript?.src : undefined;
  
  return (
async function(moduleArg = {}) {
  var moduleRtn;

// include: shell.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 = moduleArg;

// Set up the promise that indicates the Module is initialized
var readyPromiseResolve, readyPromiseReject;

var readyPromise = new Promise((resolve, reject) => {
  readyPromiseResolve = resolve;
  readyPromiseReject = reject;
});

// Determine the runtime environment we are in. You can customize this by
// setting the ENVIRONMENT setting at compile time (see settings.js).
// Attempt to auto-detect the environment
var ENVIRONMENT_IS_WEB = typeof window == "object";

var ENVIRONMENT_IS_WORKER = typeof WorkerGlobalScope != "undefined";

// N.b. Electron.js environment is simultaneously a NODE-environment, but
// also a web environment.
var ENVIRONMENT_IS_NODE = typeof process == "object" && typeof process.versions == "object" && typeof process.versions.node == "string" && process.type != "renderer";

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

// Three configurations we can be running in:
// 1) We could be the application main() thread running in the main JS UI thread. (ENVIRONMENT_IS_WORKER == false and ENVIRONMENT_IS_PTHREAD == false)
// 2) We could be the application main() thread proxied to worker. (with Emscripten -sPROXY_TO_WORKER) (ENVIRONMENT_IS_WORKER == true, ENVIRONMENT_IS_PTHREAD == false)
// 3) We could be an application pthread running in a worker. (ENVIRONMENT_IS_WORKER == true and ENVIRONMENT_IS_PTHREAD == true)
// The way we signal to a worker that it is hosting a pthread is to construct
// it with a specific name.
var ENVIRONMENT_IS_PTHREAD = ENVIRONMENT_IS_WORKER && self.name?.startsWith("em-pthread");

if (ENVIRONMENT_IS_PTHREAD) {
  assert(!globalThis.moduleLoaded, "module should only be loaded once on each pthread worker");
  globalThis.moduleLoaded = true;
}

// --pre-jses are emitted after the Module integration code, so that they can
// refer to Module (if they choose; they can also define Module)
// Sometimes an existing Module object exists with properties
// meant to overwrite the default module functionality. Here
// we collect those properties and reapply _after_ we configure
// the current environment's defaults to avoid having to be so
// defensive during initialization.
var moduleOverrides = {
  ...Module
};

var arguments_ = [];

var thisProgram = "./this.program";

var quit_ = (status, toThrow) => {
  throw toThrow;
};

// `/` 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_SHELL) {
  if ((typeof process == "object" && typeof require === "function") || typeof window == "object" || typeof WorkerGlobalScope != "undefined") 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?)");
} else // Note that this includes Node.js workers when relevant (pthreads is enabled).
// Node.js workers are detected as a combination of ENVIRONMENT_IS_WORKER and
// ENVIRONMENT_IS_NODE.
if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
  if (ENVIRONMENT_IS_WORKER) {
    // Check worker, not web, since window could be polyfilled
    scriptDirectory = self.location.href;
  } else if (typeof document != "undefined" && document.currentScript) {
    // web
    scriptDirectory = document.currentScript.src;
  }
  // When MODULARIZE, this JS may be executed later, after document.currentScript
  // is gone, so we saved it, and we use it here instead of any other info.
  if (_scriptName) {
    scriptDirectory = _scriptName;
  }
  // blob urls look like blob:http://site.com/etc/etc and we cannot infer anything from them.
  // otherwise, slice off the final part of the url to find the script directory.
  // if scriptDirectory does not contain a slash, lastIndexOf will return -1,
  // and scriptDirectory will correctly be replaced with an empty string.
  // If scriptDirectory contains a query (starting with ?) or a fragment (starting with #),
  // they are removed because they could contain a slash.
  if (scriptDirectory.startsWith("blob:")) {
    scriptDirectory = "";
  } else {
    scriptDirectory = scriptDirectory.slice(0, scriptDirectory.replace(/[?#].*/, "").lastIndexOf("/") + 1);
  }
  if (!(typeof window == "object" || typeof WorkerGlobalScope != "undefined")) 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 => {
      assert(!isFileURI(url), "readAsync does not work with file:// URLs");
      var response = await fetch(url, {
        credentials: "same-origin"
      });
      if (response.ok) {
        return response.arrayBuffer();
      }
      throw new Error(response.status + " : " + response.url);
    };
  }
} else {
  throw new Error("environment detection error");
}

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

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

// Merge back in the overrides
Object.assign(Module, moduleOverrides);

// Free the object hierarchy contained in the overrides, this lets the GC
// reclaim data used.
moduleOverrides = null;

checkIncomingModuleAPI();

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

legacyModuleProp("arguments", "arguments_");

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

legacyModuleProp("thisProgram", "thisProgram");

// perform assertions in shell.js after we set up out() and err(), as otherwise if an assertion fails it cannot print the message
// Assertions on removed incoming Module JS APIs.
assert(typeof Module["memoryInitializerPrefixURL"] == "undefined", "Module.memoryInitializerPrefixURL option was removed, use Module.locateFile instead");

assert(typeof Module["pthreadMainPrefixURL"] == "undefined", "Module.pthreadMainPrefixURL option was removed, use Module.locateFile instead");

assert(typeof Module["cdInitializerPrefixURL"] == "undefined", "Module.cdInitializerPrefixURL option was removed, use Module.locateFile instead");

assert(typeof Module["filePackagePrefixURL"] == "undefined", "Module.filePackagePrefixURL option was removed, use Module.locateFile instead");

assert(typeof Module["read"] == "undefined", "Module.read option was removed");

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");

legacyModuleProp("asm", "wasmExports");

legacyModuleProp("readAsync", "readAsync");

legacyModuleProp("readBinary", "readBinary");

legacyModuleProp("setWindowTitle", "setWindowTitle");

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";

assert(ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER || ENVIRONMENT_IS_NODE, "Pthreads do not work in this environment yet (need Web Workers, or an alternative to them)");

assert(!ENVIRONMENT_IS_NODE, "node environment detected but not enabled at build time.  Add `node` to `-sENVIRONMENT` to enable.");

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 = Module["wasmBinary"];

legacyModuleProp("wasmBinary", "wasmBinary");

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

// Wasm globals
var wasmMemory;

// For sending to workers.
var wasmModule;

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

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

// 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.
// Memory management
var HEAP, /** @type {!Int8Array} */ HEAP8, /** @type {!Uint8Array} */ HEAPU8, /** @type {!Int16Array} */ HEAP16, /** @type {!Uint16Array} */ HEAPU16, /** @type {!Int32Array} */ HEAP32, /** @type {!Uint32Array} */ HEAPU32, /** @type {!Float32Array} */ HEAPF32, /* BigInt64Array type is not correctly defined in closure
/** not-@type {!BigInt64Array} */ HEAP64, /* BigUint64Array type is not correctly defined in closure
/** not-t@type {!BigUint64Array} */ HEAPU64, /** @type {!Float64Array} */ HEAPF64;

var runtimeInitialized = false;

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

// include: runtime_shared.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.
  GROWABLE_HEAP_U32()[((max) >> 2)] = 34821223;
  GROWABLE_HEAP_U32()[(((max) + (4)) >> 2)] = 2310721022;
  // Also test the global address 0 for integrity.
  GROWABLE_HEAP_U32()[((0) >> 2)] = 1668509029;
}

function checkStackCookie() {
  if (ABORT) return;
  var max = _emscripten_stack_get_end();
  // See writeStackCookie().
  if (max == 0) {
    max += 4;
  }
  var cookie1 = GROWABLE_HEAP_U32()[((max) >> 2)];
  var cookie2 = GROWABLE_HEAP_U32()[(((max) + (4)) >> 2)];
  if (cookie1 != 34821223 || cookie2 != 2310721022) {
    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 (GROWABLE_HEAP_U32()[((0) >> 2)] != 1668509029) {
    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
// Endianness check
(() => {
  var h16 = new Int16Array(1);
  var h8 = new Int8Array(h16.buffer);
  h16[0] = 25459;
  if (h8[0] !== 115 || h8[1] !== 99) throw "Runtime error: expected the system to be little-endian! (Run with -sSUPPORT_BIG_ENDIAN to bypass)";
})();

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

function legacyModuleProp(prop, newName, incoming = true) {
  if (!Object.getOwnPropertyDescriptor(Module, prop)) {
    Object.defineProperty(Module, prop, {
      configurable: true,
      get() {
        let extra = incoming ? " (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)" : "";
        abort(`\`Module.${prop}\` has been replaced by \`${newName}\`` + extra);
      }
    });
  }
}

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 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_unlink" || name === "addRunDependency" || // The old FS has some functionality that WasmFS lacks.
  name === "FS_createLazyFile" || name === "FS_createDevice" || name === "removeRunDependency";
}

/**
 * Intercept access to a 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.
 */ function hookGlobalSymbolAccess(sym, func) {}

function missingGlobal(sym, msg) {
  hookGlobalSymbolAccess(sym, () => {
    warnOnce(`\`${sym}\` is not 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 (ENVIRONMENT_IS_PTHREAD) {
    return;
  }
  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);
      }
    });
  }
}

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);
}

// end include: runtime_debug.js
// include: memoryprofiler.js
// end include: memoryprofiler.js
// include: growableHeap.js
// Support for growable heap + pthreads, where the buffer may change, so JS views
// must be updated.
function GROWABLE_HEAP_I8() {
  if (wasmMemory.buffer != HEAP8.buffer) {
    updateMemoryViews();
  }
  return HEAP8;
}

function GROWABLE_HEAP_U8() {
  if (wasmMemory.buffer != HEAP8.buffer) {
    updateMemoryViews();
  }
  return HEAPU8;
}

function GROWABLE_HEAP_I16() {
  if (wasmMemory.buffer != HEAP8.buffer) {
    updateMemoryViews();
  }
  return HEAP16;
}

function GROWABLE_HEAP_U16() {
  if (wasmMemory.buffer != HEAP8.buffer) {
    updateMemoryViews();
  }
  return HEAPU16;
}

function GROWABLE_HEAP_I32() {
  if (wasmMemory.buffer != HEAP8.buffer) {
    updateMemoryViews();
  }
  return HEAP32;
}

function GROWABLE_HEAP_U32() {
  if (wasmMemory.buffer != HEAP8.buffer) {
    updateMemoryViews();
  }
  return HEAPU32;
}

function GROWABLE_HEAP_F32() {
  if (wasmMemory.buffer != HEAP8.buffer) {
    updateMemoryViews();
  }
  return HEAPF32;
}

function GROWABLE_HEAP_F64() {
  if (wasmMemory.buffer != HEAP8.buffer) {
    updateMemoryViews();
  }
  return HEAPF64;
}

// end include: growableHeap.js
// include: runtime_pthread.js
// Pthread Web Worker handling code.
// This code runs only on pthread web workers and handles pthread setup
// and communication with the main thread via postMessage.
// Unique ID of the current pthread worker (zero on non-pthread-workers
// including the main thread).
var workerID = 0;

if (ENVIRONMENT_IS_PTHREAD) {
  var wasmModuleReceived;
  // Thread-local guard variable for one-time init of the JS state
  var initializedJS = false;
  function threadPrintErr(...args) {
    console.error(...args);
  }
  if (!Module["printErr"]) err = threadPrintErr;
  // Turn unhandled rejected promises into errors so that the main thread will be
  // notified about them.
  self.onunhandledrejection = e => {
    throw e.reason || e;
  };
  function handleMessage(e) {
    try {
      var msgData = e["data"];
      //dbg('msgData: ' + Object.keys(msgData));
      var cmd = msgData.cmd;
      if (cmd === "load") {
        // Preload command that is called once per worker to parse and load the Emscripten code.
        workerID = msgData.workerID;
        // Until we initialize the runtime, queue up any further incoming messages.
        let messageQueue = [];
        self.onmessage = e => messageQueue.push(e);
        // And add a callback for when the runtime is initialized.
        self.startWorker = instance => {
          // Notify the main thread that this thread has loaded.
          postMessage({
            cmd: "loaded"
          });
          // Process any messages that were queued before the thread was ready.
          for (let msg of messageQueue) {
            handleMessage(msg);
          }
          // Restore the real message handler.
          self.onmessage = handleMessage;
        };
        // Use `const` here to ensure that the variable is scoped only to
        // that iteration, allowing safe reference from a closure.
        for (const handler of msgData.handlers) {
          // The the main module has a handler for a certain even, but no
          // handler exists on the pthread worker, then proxy that handler
          // back to the main thread.
          if (!Module[handler] || Module[handler].proxy) {
            Module[handler] = (...args) => {
              postMessage({
                cmd: "callHandler",
                handler,
                args
              });
            };
            // Rebind the out / err handlers if needed
            if (handler == "print") out = Module[handler];
            if (handler == "printErr") err = Module[handler];
          }
        }
        wasmMemory = msgData.wasmMemory;
        updateMemoryViews();
        wasmModuleReceived(msgData.wasmModule);
      } else if (cmd === "run") {
        assert(msgData.pthread_ptr);
        // Call inside JS module to set up the stack frame for this pthread in JS module scope.
        // This needs to be the first thing that we do, as we cannot call to any C/C++ functions
        // until the thread stack is initialized.
        establishStackSpace(msgData.pthread_ptr);
        // Pass the thread address to wasm to store it for fast access.
        __emscripten_thread_init(msgData.pthread_ptr, /*is_main=*/ 0, /*is_runtime=*/ 0, /*can_block=*/ 1, 0, 0);
        PThread.receiveOffscreenCanvases(msgData);
        PThread.threadInitTLS();
        // Await mailbox notifications with `Atomics.waitAsync` so we can start
        // using the fast `Atomics.notify` notification path.
        __emscripten_thread_mailbox_await(msgData.pthread_ptr);
        if (!initializedJS) {
          // Embind must initialize itself on all threads, as it generates support JS.
          // We only do this once per worker since they get reused
          __embind_initialize_bindings();
          initializedJS = true;
        }
        try {
          invokeEntryPoint(msgData.start_routine, msgData.arg);
        } catch (ex) {
          if (ex != "unwind") {
            // The pthread "crashed".  Do not call `_emscripten_thread_exit` (which
            // would make this thread joinable).  Instead, re-throw the exception
            // and let the top level handler propagate it back to the main thread.
            throw ex;
          }
        }
      } else if (msgData.target === "setimmediate") {} else if (cmd === "checkMailbox") {
        if (initializedJS) {
          checkMailbox();
        }
      } else if (cmd) {
        // The received message looks like something that should be handled by this message
        // handler, (since there is a cmd field present), but is not one of the
        // recognized commands:
        err(`worker: received unknown command ${cmd}`);
        err(msgData);
      }
    } catch (ex) {
      err(`worker: onmessage() captured an uncaught exception: ${ex}`);
      if (ex?.stack) err(ex.stack);
      __emscripten_thread_crashed();
      throw ex;
    }
  }
  self.onmessage = handleMessage;
}

// ENVIRONMENT_IS_PTHREAD
// end include: runtime_pthread.js
function updateMemoryViews() {
  var b = wasmMemory.buffer;
  Module["HEAP8"] = HEAP8 = new Int8Array(b);
  Module["HEAP16"] = HEAP16 = new Int16Array(b);
  Module["HEAPU8"] = HEAPU8 = new Uint8Array(b);
  Module["HEAPU16"] = HEAPU16 = new Uint16Array(b);
  Module["HEAP32"] = HEAP32 = new Int32Array(b);
  Module["HEAPU32"] = HEAPU32 = new Uint32Array(b);
  Module["HEAPF32"] = HEAPF32 = new Float32Array(b);
  Module["HEAPF64"] = HEAPF64 = new Float64Array(b);
  Module["HEAP64"] = HEAP64 = new BigInt64Array(b);
  Module["HEAPU64"] = HEAPU64 = new BigUint64Array(b);
}

// end include: runtime_shared.js
assert(!Module["STACK_SIZE"], "STACK_SIZE can no longer be set at runtime.  Use -sSTACK_SIZE at link time");

assert(typeof Int32Array != "undefined" && typeof Float64Array !== "undefined" && Int32Array.prototype.subarray != undefined && Int32Array.prototype.set != undefined, "JS engine does not provide full typed array support");

// In non-standalone/normal mode, we create the memory here.
// include: runtime_init_memory.js
// Create the wasm memory. (Note: this only applies if IMPORTED_MEMORY is defined)
// check for full engine support (use string 'subarray' to avoid closure compiler confusion)
if (!ENVIRONMENT_IS_PTHREAD) {
  if (Module["wasmMemory"]) {
    wasmMemory = Module["wasmMemory"];
  } else {
    var INITIAL_MEMORY = Module["INITIAL_MEMORY"] || 67108864;
    legacyModuleProp("INITIAL_MEMORY", "INITIAL_MEMORY");
    assert(INITIAL_MEMORY >= 16777216, "INITIAL_MEMORY should be larger than STACK_SIZE, was " + INITIAL_MEMORY + "! (STACK_SIZE=" + 16777216 + ")");
    /** @suppress {checkTypes} */ wasmMemory = new WebAssembly.Memory({
      "initial": INITIAL_MEMORY / 65536,
      // In theory we should not need to emit the maximum if we want "unlimited"
      // or 4GB of memory, but VMs error on that atm, see
      // https://github.com/emscripten-core/emscripten/issues/14130
      // And in the pthreads case we definitely need to emit a maximum. So
      // always emit one.
      "maximum": 32768,
      "shared": true
    });
  }
  updateMemoryViews();
}

// end include: runtime_init_memory.js
function preRun() {
  assert(!ENVIRONMENT_IS_PTHREAD);
  // PThreads reuse the runtime from the main thread.
  if (Module["preRun"]) {
    if (typeof Module["preRun"] == "function") Module["preRun"] = [ Module["preRun"] ];
    while (Module["preRun"].length) {
      addOnPreRun(Module["preRun"].shift());
    }
  }
  consumedModuleProp("preRun");
  callRuntimeCallbacks(onPreRuns);
}

function initRuntime() {
  assert(!runtimeInitialized);
  runtimeInitialized = true;
  if (ENVIRONMENT_IS_PTHREAD) return startWorker(Module);
  checkStackCookie();
  setStackLimits();
  if (!Module["noFSInit"] && !FS.initialized) FS.init();
  TTY.init();
  wasmExports["__wasm_call_ctors"]();
  FS.ignorePermissions = false;
}

function preMain() {
  checkStackCookie();
}

function postRun() {
  checkStackCookie();
  if (ENVIRONMENT_IS_PTHREAD) return;
  // 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");
  callRuntimeCallbacks(onPostRuns);
}

// A counter of dependencies for calling run(). If we need to
// do asynchronous work before running, increment this and
// decrement it. Incrementing must happen in a place like
// Module.preRun (used by emcc to add file preloading).
// Note that you can add dependencies in preRun, even though
// it happens right before run - run will be postponed until
// the dependencies are met.
var runDependencies = 0;

var dependenciesFulfilled = null;

// overridden to take different actions when all run dependencies are fulfilled
var runDependencyTracking = {};

var runDependencyWatcher = null;

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

function addRunDependency(id) {
  runDependencies++;
  Module["monitorRunDependencies"]?.(runDependencies);
  if (id) {
    assert(!runDependencyTracking[id]);
    runDependencyTracking[id] = 1;
    if (runDependencyWatcher === null && typeof setInterval != "undefined") {
      // Check for missing dependencies every few seconds
      runDependencyWatcher = setInterval(() => {
        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)");
        }
      }, 1e4);
    }
  } else {
    err("warning: run dependency added without ID");
  }
}

function removeRunDependency(id) {
  runDependencies--;
  Module["monitorRunDependencies"]?.(runDependencies);
  if (id) {
    assert(runDependencyTracking[id]);
    delete runDependencyTracking[id];
  } else {
    err("warning: run dependency removed without ID");
  }
  if (runDependencies == 0) {
    if (runDependencyWatcher !== null) {
      clearInterval(runDependencyWatcher);
      runDependencyWatcher = null;
    }
    if (dependenciesFulfilled) {
      var callback = dependenciesFulfilled;
      dependenciesFulfilled = null;
      callback();
    }
  }
}

/** @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;
  if (what.indexOf("RuntimeError: unreachable") >= 0) {
    what += '. "unreachable" may be due to ASYNCIFY_STACK_SIZE not being large enough (try increasing it)';
  }
  // 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);
  readyPromiseReject(e);
  // Throw the error whether or not MODULARIZE is set because abort is used
  // in code paths apart from instantiation where an exception is expected
  // to be thrown when abort is called.
  throw e;
}

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("h265web_wasm.wasm");
}

function getBinarySync(file) {
  if (file == wasmBinaryFile && wasmBinary) {
    return new Uint8Array(wasmBinary);
  }
  if (readBinary) {
    return readBinary(file);
  }
  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 {}
  }
  // 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: ${reason}`);
    // Warn on some common problems.
    if (isFileURI(wasmBinaryFile)) {
      err(`warning: Loading from a file URI (${wasmBinaryFile}) is not supported in most browsers. See https://emscripten.org/docs/getting_started/FAQ.html#how-do-i-run-a-local-webserver-for-testing-why-does-my-program-stall-in-downloading-or-preparing`);
    }
    abort(reason);
  }
}

async function instantiateAsync(binary, binaryFile, imports) {
  if (!binary && typeof WebAssembly.instantiateStreaming == "function") {
    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");
    }
  }
  return instantiateArrayBuffer(binaryFile, imports);
}

function getWasmImports() {
  assignWasmImports();
  // instrumenting imports is used in asyncify in two ways: to add assertions
  // that check for proper import use, and for ASYNCIFY=2 we use them to set up
  // the Promise API on the import side.
  // In pthreads builds getWasmImports is called more than once but we only
  // and the instrument the imports once.
  if (!wasmImports.__instrumented) {
    wasmImports.__instrumented = true;
    Asyncify.instrumentWasmImports(wasmImports);
  }
  // prepare imports
  return {
    "env": wasmImports,
    "wasi_snapshot_preview1": wasmImports
  };
}

// 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;
    wasmExports = Asyncify.instrumentWasmExports(wasmExports);
    registerTLSInit(wasmExports["_emscripten_tls_init"]);
    wasmTable = wasmExports["__indirect_function_table"];
    assert(wasmTable, "table not found in wasm exports");
    // We now have the Wasm module loaded up, keep a reference to the compiled module so we can post it to the workers.
    wasmModule = module;
    removeRunDependency("wasm-instantiate");
    return wasmExports;
  }
  // wait for the pthread pool (if any)
  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;
    return receiveInstance(result["instance"], result["module"]);
  }
  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, (mod, inst) => {
          receiveInstance(mod, inst);
          resolve(mod.exports);
        });
      } catch (e) {
        err(`Module.instantiateWasm callback failed with error: ${e}`);
        reject(e);
      }
    });
  }
  if (ENVIRONMENT_IS_PTHREAD) {
    return new Promise(resolve => {
      wasmModuleReceived = module => {
        // Instantiate from the module posted from the main thread.
        // We can just use sync instantiation in the worker.
        var instance = new WebAssembly.Instance(module, getWasmImports());
        resolve(receiveInstance(instance, module));
      };
    });
  }
  wasmBinaryFile ??= findWasmBinary();
  try {
    var result = await instantiateAsync(wasmBinary, wasmBinaryFile, info);
    var exports = receiveInstantiationResult(result);
    return exports;
  } catch (e) {
    // If instantiation fails, reject the module ready promise.
    readyPromiseReject(e);
    return Promise.reject(e);
  }
}

// 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 terminateWorker = worker => {
  worker.terminate();
  // terminate() can be asynchronous, so in theory the worker can continue
  // to run for some amount of time after termination.  However from our POV
  // the worker now dead and we don't want to hear from it again, so we stub
  // out its message handler here.  This avoids having to check in each of
  // the onmessage handlers if the message was coming from valid worker.
  worker.onmessage = e => {
    var cmd = e["data"].cmd;
    err(`received "${cmd}" command from terminated worker: ${worker.workerID}`);
  };
};

var cleanupThread = pthread_ptr => {
  assert(!ENVIRONMENT_IS_PTHREAD, "Internal Error! cleanupThread() can only ever be called from main application thread!");
  assert(pthread_ptr, "Internal Error! Null pthread_ptr in cleanupThread!");
  var worker = PThread.pthreads[pthread_ptr];
  assert(worker);
  PThread.returnWorkerToPool(worker);
};

var callRuntimeCallbacks = callbacks => {
  while (callbacks.length > 0) {
    // Pass the module as the first argument.
    callbacks.shift()(Module);
  }
};

var onPreRuns = [];

var addOnPreRun = cb => onPreRuns.unshift(cb);

var spawnThread = threadParams => {
  assert(!ENVIRONMENT_IS_PTHREAD, "Internal Error! spawnThread() can only ever be called from main application thread!");
  assert(threadParams.pthread_ptr, "Internal error, no pthread ptr!");
  var worker = PThread.getNewWorker();
  if (!worker) {
    // No available workers in the PThread pool.
    return 6;
  }
  assert(!worker.pthread_ptr, "Internal error!");
  PThread.runningWorkers.push(worker);
  // Add to pthreads map
  PThread.pthreads[threadParams.pthread_ptr] = worker;
  worker.pthread_ptr = threadParams.pthread_ptr;
  var msg = {
    cmd: "run",
    start_routine: threadParams.startRoutine,
    arg: threadParams.arg,
    pthread_ptr: threadParams.pthread_ptr
  };
  // Note that we do not need to quote these names because they are only used
  // in this file, and not from the external worker.js.
  msg.moduleCanvasId = threadParams.moduleCanvasId;
  msg.offscreenCanvases = threadParams.offscreenCanvases;
  // Ask the worker to start executing its pthread entry point function.
  worker.postMessage(msg, threadParams.transferList);
  return 0;
};

var runtimeKeepaliveCounter = 0;

var keepRuntimeAlive = () => noExitRuntime || runtimeKeepaliveCounter > 0;

var stackSave = () => _emscripten_stack_get_current();

var stackRestore = val => __emscripten_stack_restore(val);

var stackAlloc = sz => __emscripten_stack_alloc(sz);

/** @type{function(number, (number|boolean), ...number)} */ var proxyToMainThread = (funcIndex, emAsmAddr, sync, ...callArgs) => {
  // EM_ASM proxying is done by passing a pointer to the address of the EM_ASM
  // content as `emAsmAddr`.  JS library proxying is done by passing an index
  // into `proxiedJSCallArgs` as `funcIndex`. If `emAsmAddr` is non-zero then
  // `funcIndex` will be ignored.
  // Additional arguments are passed after the first three are the actual
  // function arguments.
  // The serialization buffer contains the number of call params, and then
  // all the args here.
  // We also pass 'sync' to C separately, since C needs to look at it.
  // Allocate a buffer, which will be copied by the C code.
  // First passed parameter specifies the number of arguments to the function.
  // When BigInt support is enabled, we must handle types in a more complex
  // way, detecting at runtime if a value is a BigInt or not (as we have no
  // type info here). To do that, add a "prefix" before each value that
  // indicates if it is a BigInt, which effectively doubles the number of
  // values we serialize for proxying. TODO: pack this?
  var serializedNumCallArgs = callArgs.length * 2;
  var sp = stackSave();
  var args = stackAlloc(serializedNumCallArgs * 8);
  var b = ((args) >> 3);
  for (var i = 0; i < callArgs.length; i++) {
    var arg = callArgs[i];
    if (typeof arg == "bigint") {
      // The prefix is non-zero to indicate a bigint.
      HEAP64[b + 2 * i] = 1n;
      HEAP64[b + 2 * i + 1] = arg;
    } else {
      // The prefix is zero to indicate a JS Number.
      HEAP64[b + 2 * i] = 0n;
      GROWABLE_HEAP_F64()[b + 2 * i + 1] = arg;
    }
  }
  var rtn = __emscripten_run_on_main_thread_js(funcIndex, emAsmAddr, serializedNumCallArgs, args, sync);
  stackRestore(sp);
  return rtn;
};

function _proc_exit(code) {
  if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(0, 0, 1, code);
  EXITSTATUS = code;
  if (!keepRuntimeAlive()) {
    PThread.terminateAllThreads();
    Module["onExit"]?.(code);
    ABORT = true;
  }
  quit_(code, new ExitStatus(code));
}

var runtimeKeepalivePop = () => {
  assert(runtimeKeepaliveCounter > 0);
  runtimeKeepaliveCounter -= 1;
};

function exitOnMainThread(returnCode) {
  if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(1, 0, 0, returnCode);
  runtimeKeepalivePop();
  _exit(returnCode);
}

/** @suppress {duplicate } */ /** @param {boolean|number=} implicit */ var exitJS = (status, implicit) => {
  EXITSTATUS = status;
  checkUnflushedContent();
  if (ENVIRONMENT_IS_PTHREAD) {
    // implicit exit can never happen on a pthread
    assert(!implicit);
    // When running in a pthread we propagate the exit back to the main thread
    // where it can decide if the whole process should be shut down or not.
    // The pthread may have decided not to exit its own runtime, for example
    // because it runs a main loop, but that doesn't affect the main thread.
    exitOnMainThread(status);
    throw "unwind";
  }
  // 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)`;
    readyPromiseReject(msg);
    err(msg);
  }
  _proc_exit(status);
};

var _exit = exitJS;

var ptrToString = ptr => {
  assert(typeof ptr === "number");
  // With CAN_ADDRESS_2GB or MEMORY64, pointers are already unsigned.
  ptr >>>= 0;
  return "0x" + ptr.toString(16).padStart(8, "0");
};

var PThread = {
  unusedWorkers: [],
  runningWorkers: [],
  tlsInitFunctions: [],
  pthreads: {},
  nextWorkerID: 1,
  debugInit() {
    function pthreadLogPrefix() {
      var t = 0;
      if (runtimeInitialized && typeof _pthread_self != "undefined") {
        t = _pthread_self();
      }
      return `w:${workerID},t:${ptrToString(t)}: `;
    }
    // Prefix all err()/dbg() messages with the calling thread ID.
    var origDbg = dbg;
    dbg = (...args) => origDbg(pthreadLogPrefix() + args.join(" "));
  },
  init() {
    PThread.debugInit();
    if ((!(ENVIRONMENT_IS_PTHREAD))) {
      PThread.initMainThread();
    }
  },
  initMainThread() {
    // MINIMAL_RUNTIME takes care of calling loadWasmModuleToAllWorkers
    // in postamble_minimal.js
    addOnPreRun(() => {
      addRunDependency("loading-workers");
      PThread.loadWasmModuleToAllWorkers(() => removeRunDependency("loading-workers"));
    });
  },
  terminateAllThreads: () => {
    assert(!ENVIRONMENT_IS_PTHREAD, "Internal Error! terminateAllThreads() can only ever be called from main application thread!");
    // Attempt to kill all workers.  Sadly (at least on the web) there is no
    // way to terminate a worker synchronously, or to be notified when a
    // worker in actually terminated.  This means there is some risk that
    // pthreads will continue to be executing after `worker.terminate` has
    // returned.  For this reason, we don't call `returnWorkerToPool` here or
    // free the underlying pthread data structures.
    for (var worker of PThread.runningWorkers) {
      terminateWorker(worker);
    }
    for (var worker of PThread.unusedWorkers) {
      terminateWorker(worker);
    }
    PThread.unusedWorkers = [];
    PThread.runningWorkers = [];
    PThread.pthreads = {};
  },
  returnWorkerToPool: worker => {
    // We don't want to run main thread queued calls here, since we are doing
    // some operations that leave the worker queue in an invalid state until
    // we are completely done (it would be bad if free() ends up calling a
    // queued pthread_create which looks at the global data structures we are
    // modifying). To achieve that, defer the free() til the very end, when
    // we are all done.
    var pthread_ptr = worker.pthread_ptr;
    delete PThread.pthreads[pthread_ptr];
    // Note: worker is intentionally not terminated so the pool can
    // dynamically grow.
    PThread.unusedWorkers.push(worker);
    PThread.runningWorkers.splice(PThread.runningWorkers.indexOf(worker), 1);
    // Not a running Worker anymore
    // Detach the worker from the pthread object, and return it to the
    // worker pool as an unused worker.
    worker.pthread_ptr = 0;
    // Finally, free the underlying (and now-unused) pthread structure in
    // linear memory.
    __emscripten_thread_free_data(pthread_ptr);
  },
  receiveOffscreenCanvases(data) {
    if (typeof GL != "undefined") {
      Object.assign(GL.offscreenCanvases, data.offscreenCanvases);
      if (!Module["canvas"] && data.moduleCanvasId && GL.offscreenCanvases[data.moduleCanvasId]) {
        Module["canvas"] = GL.offscreenCanvases[data.moduleCanvasId].offscreenCanvas;
        Module["canvas"].id = data.moduleCanvasId;
      }
    }
  },
  threadInitTLS() {
    // Call thread init functions (these are the _emscripten_tls_init for each
    // module loaded.
    PThread.tlsInitFunctions.forEach(f => f());
  },
  loadWasmModuleToWorker: worker => new Promise(onFinishedLoading => {
    worker.onmessage = e => {
      var d = e["data"];
      var cmd = d.cmd;
      // If this message is intended to a recipient that is not the main
      // thread, forward it to the target thread.
      if (d.targetThread && d.targetThread != _pthread_self()) {
        var targetWorker = PThread.pthreads[d.targetThread];
        if (targetWorker) {
          targetWorker.postMessage(d, d.transferList);
        } else {
          err(`Internal error! Worker sent a message "${cmd}" to target pthread ${d.targetThread}, but that thread no longer exists!`);
        }
        return;
      }
      if (cmd === "checkMailbox") {
        checkMailbox();
      } else if (cmd === "spawnThread") {
        spawnThread(d);
      } else if (cmd === "cleanupThread") {
        cleanupThread(d.thread);
      } else if (cmd === "loaded") {
        worker.loaded = true;
        onFinishedLoading(worker);
      } else if (d.target === "setimmediate") {
        // Worker wants to postMessage() to itself to implement setImmediate()
        // emulation.
        worker.postMessage(d);
      } else if (cmd === "callHandler") {
        Module[d.handler](...d.args);
      } else if (cmd) {
        // The received message looks like something that should be handled by this message
        // handler, (since there is a e.data.cmd field present), but is not one of the
        // recognized commands:
        err(`worker sent an unknown command ${cmd}`);
      }
    };
    worker.onerror = e => {
      var message = "worker sent an error!";
      if (worker.pthread_ptr) {
        message = `Pthread ${ptrToString(worker.pthread_ptr)} sent an error!`;
      }
      err(`${message} ${e.filename}:${e.lineno}: ${e.message}`);
      throw e;
    };
    assert(wasmMemory instanceof WebAssembly.Memory, "WebAssembly memory should have been loaded by now!");
    assert(wasmModule instanceof WebAssembly.Module, "WebAssembly Module should have been loaded by now!");
    // When running on a pthread, none of the incoming parameters on the module
    // object are present. Proxy known handlers back to the main thread if specified.
    var handlers = [];
    var knownHandlers = [ "onExit", "onAbort", "print", "printErr" ];
    for (var handler of knownHandlers) {
      if (Module.propertyIsEnumerable(handler)) {
        handlers.push(handler);
      }
    }
    // Ask the new worker to load up the Emscripten-compiled page. This is a heavy operation.
    worker.postMessage({
      cmd: "load",
      handlers,
      wasmMemory,
      wasmModule,
      "workerID": worker.workerID
    });
  }),
  loadWasmModuleToAllWorkers(onMaybeReady) {
    onMaybeReady();
  },
  allocateUnusedWorker() {
    var worker;
    var pthreadMainJs = _scriptName;
    // We can't use makeModuleReceiveWithVar here since we want to also
    // call URL.createObjectURL on the mainScriptUrlOrBlob.
    if (Module["mainScriptUrlOrBlob"]) {
      pthreadMainJs = Module["mainScriptUrlOrBlob"];
      if (typeof pthreadMainJs != "string") {
        pthreadMainJs = URL.createObjectURL(pthreadMainJs);
      }
    }
    worker = new Worker(pthreadMainJs, {
      // This is the way that we signal to the Web Worker that it is hosting
      // a pthread.
      "name": "em-pthread-" + PThread.nextWorkerID
    });
    worker.workerID = PThread.nextWorkerID++;
    PThread.unusedWorkers.push(worker);
  },
  getNewWorker() {
    if (PThread.unusedWorkers.length == 0) {
      // PTHREAD_POOL_SIZE_STRICT should show a warning and, if set to level `2`, return from the function.
      PThread.allocateUnusedWorker();
      PThread.loadWasmModuleToWorker(PThread.unusedWorkers[0]);
    }
    return PThread.unusedWorkers.pop();
  }
};

var onPostRuns = [];

var addOnPostRun = cb => onPostRuns.unshift(cb);

var establishStackSpace = pthread_ptr => {
  // If memory growth is enabled, the memory views may have gotten out of date,
  // so resync them before accessing the pthread ptr below.
  updateMemoryViews();
  var stackHigh = GROWABLE_HEAP_U32()[(((pthread_ptr) + (52)) >> 2)];
  var stackSize = GROWABLE_HEAP_U32()[(((pthread_ptr) + (56)) >> 2)];
  var stackLow = stackHigh - stackSize;
  assert(stackHigh != 0);
  assert(stackLow != 0);
  assert(stackHigh > stackLow, "stackHigh must be higher then stackLow");
  // Set stack limits used by `emscripten/stack.h` function.  These limits are
  // cached in wasm-side globals to make checks as fast as possible.
  _emscripten_stack_set_limits(stackHigh, stackLow);
  setStackLimits();
  // Call inside wasm module to set up the stack frame for this pthread in wasm module scope
  stackRestore(stackHigh);
  // Write the stack cookie last, after we have set up the proper bounds and
  // current position of the stack.
  writeStackCookie();
};

/**
     * @param {number} ptr
     * @param {string} type
     */ function getValue(ptr, type = "i8") {
  if (type.endsWith("*")) type = "*";
  switch (type) {
   case "i1":
    return GROWABLE_HEAP_I8()[ptr];

   case "i8":
    return GROWABLE_HEAP_I8()[ptr];

   case "i16":
    return GROWABLE_HEAP_I16()[((ptr) >> 1)];

   case "i32":
    return GROWABLE_HEAP_I32()[((ptr) >> 2)];

   case "i64":
    return HEAP64[((ptr) >> 3)];

   case "float":
    return GROWABLE_HEAP_F32()[((ptr) >> 2)];

   case "double":
    return GROWABLE_HEAP_F64()[((ptr) >> 3)];

   case "*":
    return GROWABLE_HEAP_U32()[((ptr) >> 2)];

   default:
    abort(`invalid type for getValue: ${type}`);
  }
}

var invokeEntryPoint = (ptr, arg) => {
  // An old thread on this worker may have been canceled without returning the
  // `runtimeKeepaliveCounter` to zero. Reset it now so the new thread won't
  // be affected.
  runtimeKeepaliveCounter = 0;
  // Same for noExitRuntime.  The default for pthreads should always be false
  // otherwise pthreads would never complete and attempts to pthread_join to
  // them would block forever.
  // pthreads can still choose to set `noExitRuntime` explicitly, or
  // call emscripten_unwind_to_js_event_loop to extend their lifetime beyond
  // their main function.  See comment in src/runtime_pthread.js for more.
  noExitRuntime = 0;
  // pthread entry points are always of signature 'void *ThreadMain(void *arg)'
  // Native codebases sometimes spawn threads with other thread entry point
  // signatures, such as void ThreadMain(void *arg), void *ThreadMain(), or
  // void ThreadMain().  That is not acceptable per C/C++ specification, but
  // x86 compiler ABI extensions enable that to work. If you find the
  // following line to crash, either change the signature to "proper" void
  // *ThreadMain(void *arg) form, or try linking with the Emscripten linker
  // flag -sEMULATE_FUNCTION_POINTER_CASTS to add in emulation for this x86
  // ABI extension.
  var result = (a1 => dynCall_ii(ptr, a1))(arg);
  checkStackCookie();
  function finish(result) {
    if (keepRuntimeAlive()) {
      EXITSTATUS = result;
    } else {
      __emscripten_thread_exit(result);
    }
  }
  finish(result);
};

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

var registerTLSInit = tlsInitFunc => PThread.tlsInitFunctions.push(tlsInitFunc);

var runtimeKeepalivePush = () => {
  runtimeKeepaliveCounter += 1;
};

var setStackLimits = () => {
  var stackLow = _emscripten_stack_get_base();
  var stackHigh = _emscripten_stack_get_end();
  ___set_stack_limits(stackLow, stackHigh);
};

/**
     * @param {number} ptr
     * @param {number} value
     * @param {string} type
     */ function setValue(ptr, value, type = "i8") {
  if (type.endsWith("*")) type = "*";
  switch (type) {
   case "i1":
    GROWABLE_HEAP_I8()[ptr] = value;
    break;

   case "i8":
    GROWABLE_HEAP_I8()[ptr] = value;
    break;

   case "i16":
    GROWABLE_HEAP_I16()[((ptr) >> 1)] = value;
    break;

   case "i32":
    GROWABLE_HEAP_I32()[((ptr) >> 2)] = value;
    break;

   case "i64":
    HEAP64[((ptr) >> 3)] = BigInt(value);
    break;

   case "float":
    GROWABLE_HEAP_F32()[((ptr) >> 2)] = value;
    break;

   case "double":
    GROWABLE_HEAP_F64()[((ptr) >> 3)] = value;
    break;

   case "*":
    GROWABLE_HEAP_U32()[((ptr) >> 2)] = value;
    break;

   default:
    abort(`invalid type for setValue: ${type}`);
  }
}

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

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

/**
     * 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
     * @return {string}
     */ var UTF8ArrayToString = (heapOrArray, idx = 0, maxBytesToRead = NaN) => {
  var endIdx = idx + maxBytesToRead;
  var endPtr = idx;
  // TextDecoder needs to know the byte length in advance, it doesn't stop on
  // null terminator by itself.  Also, use the length info to avoid running tiny
  // strings through TextDecoder, since .subarray() allocates garbage.
  // (As a tiny code save trick, compare endPtr against endIdx using a negation,
  // so that undefined/NaN means Infinity)
  while (heapOrArray[endPtr] && !(endPtr >= endIdx)) ++endPtr;
  if (endPtr - idx > 16 && heapOrArray.buffer && UTF8Decoder) {
    return UTF8Decoder.decode(heapOrArray.buffer instanceof ArrayBuffer ? heapOrArray.subarray(idx, endPtr) : heapOrArray.slice(idx, endPtr));
  }
  var str = "";
  // If building with TextDecoder, we have already computed the string length
  // above, so test loop end condition against that
  while (idx < endPtr) {
    // For UTF8 byte structure, see:
    // http://en.wikipedia.org/wiki/UTF-8#Description
    // https://www.ietf.org/rfc/rfc2279.txt
    // https://tools.ietf.org/html/rfc3629
    var u0 = heapOrArray[idx++];
    if (!(u0 & 128)) {
      str += String.fromCharCode(u0);
      continue;
    }
    var u1 = heapOrArray[idx++] & 63;
    if ((u0 & 224) == 192) {
      str += String.fromCharCode(((u0 & 31) << 6) | u1);
      continue;
    }
    var u2 = heapOrArray[idx++] & 63;
    if ((u0 & 240) == 224) {
      u0 = ((u0 & 15) << 12) | (u1 << 6) | u2;
    } else {
      if ((u0 & 248) != 240) 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 < 65536) {
      str += String.fromCharCode(u0);
    } else {
      var ch = u0 - 65536;
      str += String.fromCharCode(55296 | (ch >> 10), 56320 | (ch & 1023));
    }
  }
  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 (i.e. maxBytesToRead will not
     *   produce a string of exact length [ptr, ptr+maxBytesToRead[) N.B. mixing
     *   frequent uses of UTF8ToString() with and without maxBytesToRead may throw
     *   JS JIT optimizations off, so it is worth to consider consistently using one
     * @return {string}
     */ var UTF8ToString = (ptr, maxBytesToRead) => {
  assert(typeof ptr == "number", `UTF8ToString expects a number (got ${typeof ptr})`);
  return ptr ? UTF8ArrayToString(GROWABLE_HEAP_U8(), ptr, maxBytesToRead) : "";
};

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

class ExceptionInfo {
  // excPtr - Thrown object pointer to wrap. Metadata pointer is calculated from it.
  constructor(excPtr) {
    this.excPtr = excPtr;
    this.ptr = excPtr - 24;
  }
  set_type(type) {
    GROWABLE_HEAP_U32()[(((this.ptr) + (4)) >> 2)] = type;
  }
  get_type() {
    return GROWABLE_HEAP_U32()[(((this.ptr) + (4)) >> 2)];
  }
  set_destructor(destructor) {
    GROWABLE_HEAP_U32()[(((this.ptr) + (8)) >> 2)] = destructor;
  }
  get_destructor() {
    return GROWABLE_HEAP_U32()[(((this.ptr) + (8)) >> 2)];
  }
  set_caught(caught) {
    caught = caught ? 1 : 0;
    GROWABLE_HEAP_I8()[(this.ptr) + (12)] = caught;
  }
  get_caught() {
    return GROWABLE_HEAP_I8()[(this.ptr) + (12)] != 0;
  }
  set_rethrown(rethrown) {
    rethrown = rethrown ? 1 : 0;
    GROWABLE_HEAP_I8()[(this.ptr) + (13)] = rethrown;
  }
  get_rethrown() {
    return GROWABLE_HEAP_I8()[(this.ptr) + (13)] != 0;
  }
  // Initialize native structure fields. Should be called once after allocated.
  init(type, destructor) {
    this.set_adjusted_ptr(0);
    this.set_type(type);
    this.set_destructor(destructor);
  }
  set_adjusted_ptr(adjustedPtr) {
    GROWABLE_HEAP_U32()[(((this.ptr) + (16)) >> 2)] = adjustedPtr;
  }
  get_adjusted_ptr() {
    return GROWABLE_HEAP_U32()[(((this.ptr) + (16)) >> 2)];
  }
}

var exceptionLast = 0;

var uncaughtExceptionCount = 0;

var ___cxa_throw = (ptr, type, destructor) => {
  var info = new ExceptionInfo(ptr);
  // Initialize ExceptionInfo content after it was allocated in __cxa_allocate_exception.
  info.init(type, destructor);
  exceptionLast = ptr;
  uncaughtExceptionCount++;
  assert(false, "Exception thrown, but exception catching is not enabled. Compile with -sNO_DISABLE_EXCEPTION_CATCHING or -sEXCEPTION_CATCHING_ALLOWED=[..] to catch.");
};

var ___handle_stack_overflow = requested => {
  var base = _emscripten_stack_get_base();
  var end = _emscripten_stack_get_end();
  abort(`stack overflow (Attempt to set SP to ${ptrToString(requested)}` + `, with stack limits [${ptrToString(end)} - ${ptrToString(base)}` + "]). If you require more stack space build with -sSTACK_SIZE=<bytes>");
};

function pthreadCreateProxied(pthread_ptr, attr, startRoutine, arg) {
  if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(2, 0, 1, pthread_ptr, attr, startRoutine, arg);
  return ___pthread_create_js(pthread_ptr, attr, startRoutine, arg);
}

var _emscripten_has_threading_support = () => typeof SharedArrayBuffer != "undefined";

var ___pthread_create_js = (pthread_ptr, attr, startRoutine, arg) => {
  if (!_emscripten_has_threading_support()) {
    dbg("pthread_create: environment does not support SharedArrayBuffer, pthreads are not available");
    return 6;
  }
  // List of JS objects that will transfer ownership to the Worker hosting the thread
  var transferList = [];
  var error = 0;
  // Deduce which WebGL canvases (HTMLCanvasElements or OffscreenCanvases) should be passed over to the
  // Worker that hosts the spawned pthread.
  // Comma-delimited list of CSS selectors that must identify canvases by IDs: "#canvas1, #canvas2, ..."
  var transferredCanvasNames = attr ? GROWABLE_HEAP_U32()[(((attr) + (40)) >> 2)] : 0;
  // Proxied canvases string pointer -1/MAX_PTR is used as a special token to
  // fetch whatever canvases were passed to build in
  // -sOFFSCREENCANVASES_TO_PTHREAD= command line.
  if (transferredCanvasNames == 4294967295) {
    transferredCanvasNames = "#canvas";
  } else {
    transferredCanvasNames = UTF8ToString(transferredCanvasNames).trim();
  }
  transferredCanvasNames = transferredCanvasNames ? transferredCanvasNames.split(",") : [];
  var offscreenCanvases = {};
  // Dictionary of OffscreenCanvas objects we'll transfer to the created thread to own
  var moduleCanvasId = Module["canvas"]?.id || "";
  // Note that transferredCanvasNames might be null (so we cannot do a for-of loop).
  for (var name of transferredCanvasNames) {
    name = name.trim();
    var offscreenCanvasInfo;
    try {
      if (name == "#canvas") {
        if (!Module["canvas"]) {
          err(`pthread_create: could not find canvas with ID "${name}" to transfer to thread!`);
          error = 28;
          break;
        }
        name = Module["canvas"].id;
      }
      assert(typeof GL == "object", "OFFSCREENCANVAS_SUPPORT assumes GL is in use (you can force-include it with '-sDEFAULT_LIBRARY_FUNCS_TO_INCLUDE=$GL')");
      if (GL.offscreenCanvases[name]) {
        offscreenCanvasInfo = GL.offscreenCanvases[name];
        GL.offscreenCanvases[name] = null;
        // This thread no longer owns this canvas.
        if (Module["canvas"] instanceof OffscreenCanvas && name === Module["canvas"].id) Module["canvas"] = null;
      } else if (!ENVIRONMENT_IS_PTHREAD) {
        var canvas = (Module["canvas"] && Module["canvas"].id === name) ? Module["canvas"] : document.querySelector(name);
        if (!canvas) {
          err(`pthread_create: could not find canvas with ID "${name}" to transfer to thread!`);
          error = 28;
          break;
        }
        if (canvas.controlTransferredOffscreen) {
          err(`pthread_create: cannot transfer canvas with ID "${name}" to thread, since the current thread does not have control over it!`);
          error = 63;
          // Operation not permitted, some other thread is accessing the canvas.
          break;
        }
        if (canvas.transferControlToOffscreen) {
          // Create a shared information block in heap so that we can control
          // the canvas size from any thread.
          if (!canvas.canvasSharedPtr) {
            canvas.canvasSharedPtr = _malloc(12);
            GROWABLE_HEAP_I32()[((canvas.canvasSharedPtr) >> 2)] = canvas.width;
            GROWABLE_HEAP_I32()[(((canvas.canvasSharedPtr) + (4)) >> 2)] = canvas.height;
            GROWABLE_HEAP_U32()[(((canvas.canvasSharedPtr) + (8)) >> 2)] = 0;
          }
          offscreenCanvasInfo = {
            offscreenCanvas: canvas.transferControlToOffscreen(),
            canvasSharedPtr: canvas.canvasSharedPtr,
            id: canvas.id
          };
          // After calling canvas.transferControlToOffscreen(), it is no
          // longer possible to access certain operations on the canvas, such
          // as resizing it or obtaining GL contexts via it.
          // Use this field to remember that we have permanently converted
          // this Canvas to be controlled via an OffscreenCanvas (there is no
          // way to undo this in the spec)
          canvas.controlTransferredOffscreen = true;
        } else {
          err(`pthread_create: cannot transfer control of canvas "${name}" to pthread, because current browser does not support OffscreenCanvas!`);
          // If building with OFFSCREEN_FRAMEBUFFER=1 mode, we don't need to
          // be able to transfer control to offscreen, but WebGL can be
          // proxied from worker to main thread.
          err("pthread_create: Build with -sOFFSCREEN_FRAMEBUFFER to enable fallback proxying of GL commands from pthread to main thread.");
          return 52;
        }
      }
      if (offscreenCanvasInfo) {
        transferList.push(offscreenCanvasInfo.offscreenCanvas);
        offscreenCanvases[offscreenCanvasInfo.id] = offscreenCanvasInfo;
      }
    } catch (e) {
      err(`pthread_create: failed to transfer control of canvas "${name}" to OffscreenCanvas! Error: ${e}`);
      return 28;
    }
  }
  // Synchronously proxy the thread creation to main thread if possible. If we
  // need to transfer ownership of objects, then proxy asynchronously via
  // postMessage.
  if (ENVIRONMENT_IS_PTHREAD && (transferList.length === 0 || error)) {
    return pthreadCreateProxied(pthread_ptr, attr, startRoutine, arg);
  }
  // If on the main thread, and accessing Canvas/OffscreenCanvas failed, abort
  // with the detected error.
  if (error) return error;
  // Register for each of the transferred canvases that the new thread now
  // owns the OffscreenCanvas.
  for (var canvas of Object.values(offscreenCanvases)) {
    // pthread ptr to the thread that owns this canvas.
    GROWABLE_HEAP_U32()[(((canvas.canvasSharedPtr) + (8)) >> 2)] = pthread_ptr;
  }
  var threadParams = {
    startRoutine,
    pthread_ptr,
    arg,
    moduleCanvasId,
    offscreenCanvases,
    transferList
  };
  if (ENVIRONMENT_IS_PTHREAD) {
    // The prepopulated pool of web workers that can host pthreads is stored
    // in the main JS thread. Therefore if a pthread is attempting to spawn a
    // new thread, the thread creation must be deferred to the main JS thread.
    threadParams.cmd = "spawnThread";
    postMessage(threadParams, transferList);
    // When we defer thread creation this way, we have no way to detect thread
    // creation synchronously today, so we have to assume success and return 0.
    return 0;
  }
  // We are the main thread, so we have the pthread warmup pool in this
  // thread and can fire off JS thread creation directly ourselves.
  return spawnThread(threadParams);
};

/** @suppress {duplicate } */ var syscallGetVarargI = () => {
  assert(SYSCALLS.varargs != undefined);
  // the `+` prepended here is necessary to convince the JSCompiler that varargs is indeed a number.
  var ret = GROWABLE_HEAP_I32()[((+SYSCALLS.varargs) >> 2)];
  SYSCALLS.varargs += 4;
  return ret;
};

var syscallGetVarargP = syscallGetVarargI;

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 = () => view => view.set(crypto.getRandomValues(new Uint8Array(view.byteLength)));

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 "";
      }
      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 <= 127) {
      len++;
    } else if (c <= 2047) {
      len += 2;
    } else if (c >= 55296 && c <= 57343) {
      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) {
    // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code
    // unit, not a Unicode code point of the character! So decode
    // UTF16->UTF32->UTF8.
    // See http://unicode.org/faq/utf_bom.html#utf16-3
    // For UTF8 byte structure, see http://en.wikipedia.org/wiki/UTF-8#Description
    // and https://www.ietf.org/rfc/rfc2279.txt
    // and https://tools.ietf.org/html/rfc3629
    var u = str.charCodeAt(i);
    // possibly a lead surrogate
    if (u >= 55296 && u <= 57343) {
      var u1 = str.charCodeAt(++i);
      u = 65536 + ((u & 1023) << 10) | (u1 & 1023);
    }
    if (u <= 127) {
      if (outIdx >= endIdx) break;
      heap[outIdx++] = u;
    } else if (u <= 2047) {
      if (outIdx + 1 >= endIdx) break;
      heap[outIdx++] = 192 | (u >> 6);
      heap[outIdx++] = 128 | (u & 63);
    } else if (u <= 65535) {
      if (outIdx + 2 >= endIdx) break;
      heap[outIdx++] = 224 | (u >> 12);
      heap[outIdx++] = 128 | ((u >> 6) & 63);
      heap[outIdx++] = 128 | (u & 63);
    } else {
      if (outIdx + 3 >= endIdx) break;
      if (u > 1114111) 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++] = 240 | (u >> 18);
      heap[outIdx++] = 128 | ((u >> 12) & 63);
      heap[outIdx++] = 128 | ((u >> 6) & 63);
      heap[outIdx++] = 128 | (u & 63);
    }
  }
  // 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 (typeof window != "undefined" && typeof window.prompt == "function") {
      // 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() {},
  shutdown() {},
  register(dev, ops) {
    TTY.ttys[dev] = {
      input: [],
      output: [],
      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) {
      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);
      }
    },
    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: [ 3, 28, 127, 21, 4, 0, 1, 0, 17, 19, 26, 0, 18, 15, 23, 22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
      };
    },
    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 zeroMemory = (ptr, size) => GROWABLE_HEAP_U8().fill(0, ptr, ptr + size);

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

var mmapAlloc = size => {
  size = alignMemory(size, 65536);
  var ptr = _emscripten_builtin_memalign(65536, size);
  if (ptr) zeroMemory(ptr, size);
  return ptr;
};

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)) {
      // no 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;
      node.usedBytes = 0;
      // The actual number of bytes used in the typed array, as opposed to contents.length which gives the whole capacity.
      // When the byte data of the file is populated, this will point to either a typed array, or a normal JS array. Typed arrays are preferred
      // for performance, and used by default. However, typed arrays are not resizable like normal JS arrays are, so there is a small disk size
      // penalty involved for appending file writes that continuously grow a file similar to std::vector capacity vs used -scheme.
      node.contents = null;
    } else if (FS.isLink(node.mode)) {
      node.node_ops = MEMFS.ops_table.link.node;
      node.stream_ops = MEMFS.ops_table.link.stream;
    } else if (FS.isChrdev(node.mode)) {
      node.node_ops = MEMFS.ops_table.chrdev.node;
      node.stream_ops = MEMFS.ops_table.chrdev.stream;
    }
    node.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) {
    if (!node.contents) return new Uint8Array(0);
    if (node.contents.subarray) return node.contents.subarray(0, node.usedBytes);
    // Make sure to not return excess unused bytes.
    return new Uint8Array(node.contents);
  },
  expandFileStorage(node, newCapacity) {
    var prevCapacity = node.contents ? node.contents.length : 0;
    if (prevCapacity >= newCapacity) return;
    // No need to expand, the storage was already large enough.
    // Don't expand strictly to the given requested limit if it's only a very small increase, but instead geometrically grow capacity.
    // For small filesizes (<1MB), perform size*2 geometric increase, but for large sizes, do a much more conservative size*1.125 increase to
    // avoid overshooting the allocation cap by a very large margin.
    var CAPACITY_DOUBLING_MAX = 1024 * 1024;
    newCapacity = Math.max(newCapacity, (prevCapacity * (prevCapacity < CAPACITY_DOUBLING_MAX ? 2 : 1.125)) >>> 0);
    if (prevCapacity != 0) newCapacity = Math.max(newCapacity, 256);
    // At minimum allocate 256b for each file when expanding.
    var oldContents = node.contents;
    node.contents = new Uint8Array(newCapacity);
    // Allocate new storage.
    if (node.usedBytes > 0) node.contents.set(oldContents.subarray(0, node.usedBytes), 0);
  },
  resizeFileStorage(node, newSize) {
    if (node.usedBytes == newSize) return;
    if (newSize == 0) {
      node.contents = null;
      // Fully decommit when requesting a resize to zero.
      node.usedBytes = 0;
    } else {
      var oldContents = node.contents;
      node.contents = new Uint8Array(newSize);
      // Allocate new storage.
      if (oldContents) {
        node.contents.set(oldContents.subarray(0, Math.min(newSize, node.usedBytes)));
      }
      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, 511 | 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);
      if (size > 8 && contents.subarray) {
        // non-trivial, and typed array
        buffer.set(contents.subarray(position, position + size), offset);
      } else {
        for (var i = 0; i < size; i++) buffer[offset + i] = contents[position + i];
      }
      return size;
    },
    write(stream, buffer, offset, length, position, canOwn) {
      // The data buffer should be a typed array view
      assert(!(buffer instanceof ArrayBuffer));
      // If the buffer is located in main memory (HEAP), and if
      // memory can grow, we can't hold on to references of the
      // memory buffer, as they may get invalidated. That means we
      // need to do copy its contents.
      if (buffer.buffer === GROWABLE_HEAP_I8().buffer) {
        canOwn = false;
      }
      if (!length) return 0;
      var node = stream.node;
      node.mtime = node.ctime = Date.now();
      if (buffer.subarray && (!node.contents || node.contents.subarray)) {
        // This write is from a typed array to a typed array?
        if (canOwn) {
          assert(position === 0, "canOwn must imply no weird position inside the file");
          node.contents = buffer.subarray(offset, offset + length);
          node.usedBytes = length;
          return length;
        } else if (node.usedBytes === 0 && position === 0) {
          // If this is a simple first write to an empty file, do a fast set since we don't need to care about old data.
          node.contents = buffer.slice(offset, offset + length);
          node.usedBytes = length;
          return length;
        } else if (position + length <= node.usedBytes) {
          // Writing to an already allocated and used subrange of the file?
          node.contents.set(buffer.subarray(offset, offset + length), position);
          return length;
        }
      }
      // Appending to an existing file and we need to reallocate, or source data did not come as a typed array.
      MEMFS.expandFileStorage(node, position + length);
      if (node.contents.subarray && buffer.subarray) {
        // Use typed array write which is available.
        node.contents.set(buffer.subarray(offset, offset + length), position);
      } else {
        for (var i = 0; i < length; i++) {
          node.contents[position + i] = buffer[offset + i];
        }
      }
      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 && contents.buffer === GROWABLE_HEAP_I8().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);
            }
          }
          GROWABLE_HEAP_I8().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 asyncLoad = async url => {
  var arrayBuffer = await readAsync(url);
  assert(arrayBuffer, `Loading data file "${url}" failed (no arrayBuffer).`);
  return new Uint8Array(arrayBuffer);
};

asyncLoad.isAsync = true;

var FS_createDataFile = (parent, name, fileData, canRead, canWrite, canOwn) => {
  FS.createDataFile(parent, name, fileData, canRead, canWrite, canOwn);
};

var preloadPlugins = Module["preloadPlugins"] || [];

var FS_handledByPreloadPlugin = (byteArray, fullname, finish, onerror) => {
  // Ensure plugins are ready.
  if (typeof Browser != "undefined") Browser.init();
  var handled = false;
  preloadPlugins.forEach(plugin => {
    if (handled) return;
    if (plugin["canHandle"](fullname)) {
      plugin["handle"](byteArray, fullname, finish, onerror);
      handled = true;
    }
  });
  return handled;
};

var FS_createPreloadedFile = (parent, name, url, canRead, canWrite, onload, onerror, dontCreateFile, canOwn, preFinish) => {
  // TODO we should allow people to just pass in a complete filename instead
  // of parent and name being that we just join them anyways
  var fullname = name ? PATH_FS.resolve(PATH.join2(parent, name)) : parent;
  var dep = getUniqueRunDependency(`cp ${fullname}`);
  // might have several active requests for the same fullname
  function processData(byteArray) {
    function finish(byteArray) {
      preFinish?.();
      if (!dontCreateFile) {
        FS_createDataFile(parent, name, byteArray, canRead, canWrite, canOwn);
      }
      onload?.();
      removeRunDependency(dep);
    }
    if (FS_handledByPreloadPlugin(byteArray, fullname, finish, () => {
      onerror?.();
      removeRunDependency(dep);
    })) {
      return;
    }
    finish(byteArray);
  }
  addRunDependency(dep);
  if (typeof url == "string") {
    asyncLoad(url).then(processData, onerror);
  } else {
    processData(url);
  }
};

var FS_modeStringToFlags = 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_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 FS = {
  root: null,
  mounts: [],
  devices: {},
  streams: [],
  nextInode: 1,
  nameTable: null,
  currentPath: "/",
  initialized: false,
  ignorePermissions: true,
  filesystems: null,
  syncFSRequests: 0,
  readFiles: {},
  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;
      }
      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);
          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;
    } else if (perms.includes("w") && !(node.mode & 146)) {
      return 2;
    } else 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;
    } else if (FS.isDir(node.mode)) {
      if (FS.flagsToPermissionString(flags) !== "r" || (flags & (512 | 64))) {
        // TODO: check for O_SEARCH? (== search for dir only)
        return 31;
      }
    }
    return FS.nodePermissions(node, FS.flagsToPermissionString(flags));
  },
  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) & 255),
  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
    mounts.forEach(mount => {
      if (!mount.type.syncfs) {
        return done(null);
      }
      mount.type.syncfs(mount, populate, done);
    });
  },
  mount(type, opts, mountpoint) {
    if (typeof type == "string") {
      // The filesystem was not included, and instead we have an error
      // message stored in the variable.
      throw type;
    }
    var root = mountpoint === "/";
    var pseudo = !mountpoint;
    var node;
    if (root && FS.root) {
      throw new FS.ErrnoError(10);
    } else if (!root && !pseudo) {
      var lookup = FS.lookupPath(mountpoint, {
        follow_mount: false
      });
      mountpoint = lookup.path;
      // use the absolute path
      node = lookup.node;
      if (FS.isMountpoint(node)) {
        throw new FS.ErrnoError(10);
      }
      if (!FS.isDir(node.mode)) {
        throw new FS.ErrnoError(54);
      }
    }
    var mount = {
      type,
      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);
    Object.keys(FS.nameTable).forEach(hash => {
      var current = FS.nameTable[hash];
      while (current) {
        var next = current.name_next;
        if (mounts.includes(current.mount)) {
          FS.destroyNode(current);
        }
        current = next;
      }
    });
    // no longer a mountpoint
    node.mounted = null;
    // remove this mount from the child mounts
    var idx = node.mount.mounts.indexOf(mount);
    assert(idx !== -1);
    node.mount.mounts.splice(idx, 1);
  },
  lookup(parent, name) {
    return parent.node_ops.lookup(parent, name);
  },
  mknod(path, mode, dev) {
    var lookup = FS.lookupPath(path, {
      parent: true
    });
    var parent = lookup.node;
    var name = PATH.basename(path);
    if (!name) {
      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 = 438) {
    mode &= 4095;
    mode |= 32768;
    return FS.mknod(path, mode, 0);
  },
  mkdir(path, mode = 511) {
    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 = 438;
    }
    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) {}
    // 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
    });
  },
  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,
      mtime
    });
  },
  open(path, flags, mode = 438) {
    if (path === "") {
      throw new FS.ErrnoError(44);
    }
    flags = typeof flags == "string" ? FS_modeStringToFlags(flags) : 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 the apply the permissions once the
        // file is open.
        node = FS.mknod(path, mode | 511, 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 & 511);
    }
    if (Module["logReadFiles"] && !(flags & 1)) {
      if (!(path in FS.readFiles)) {
        FS.readFiles[path] = 1;
      }
    }
    return stream;
  },
  close(stream) {
    if (FS.isClosed(stream)) {
      throw new FS.ErrnoError(8);
    }
    if (stream.getdents) stream.getdents = null;
    // free readdir state
    try {
      if (stream.stream_ops.close) {
        stream.stream_ops.close(stream);
      }
    } catch (e) {
      throw e;
    } finally {
      FS.closeStream(stream.fd);
    }
    stream.fd = null;
  },
  isClosed(stream) {
    return stream.fd === null;
  },
  llseek(stream, offset, whence) {
    if (FS.isClosed(stream)) {
      throw new FS.ErrnoError(8);
    }
    if (!stream.seekable || !stream.stream_ops.llseek) {
      throw new FS.ErrnoError(70);
    }
    if (whence != 0 && whence != 1 && whence != 2) {
      throw new FS.ErrnoError(28);
    }
    stream.position = stream.stream_ops.llseek(stream, offset, whence);
    stream.ungotten = [];
    return stream.position;
  },
  read(stream, buffer, offset, length, position) {
    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);
    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") {
      throw new Error(`Invalid encoding type "${opts.encoding}"`);
    }
    var ret;
    var stream = FS.open(path, opts.flags);
    var stat = FS.stat(path);
    var length = stat.size;
    var buf = new Uint8Array(length);
    FS.read(stream, buf, 0, length, 0);
    if (opts.encoding === "utf8") {
      ret = UTF8ArrayToString(buf);
    } else if (opts.encoding === "binary") {
      ret = buf;
    }
    FS.close(stream);
    return ret;
  },
  writeFile(path, data, opts = {}) {
    opts.flags = opts.flags || 577;
    var stream = FS.open(path, opts.flags, opts.mode);
    if (typeof data == "string") {
      var buf = new Uint8Array(lengthBytesUTF8(data) + 1);
      var actualNumBytes = stringToUTF8Array(data, buf, 0, buf.length);
      FS.write(stream, buf, 0, actualNumBytes, undefined, opts.canOwn);
    } else if (ArrayBuffer.isView(data)) {
      FS.write(stream, data, 0, data.byteLength, undefined, opts.canOwn);
    } else {
      throw new Error("Unsupported data type");
    }
    FS.close(stream);
  },
  cwd: () => FS.currentPath,
  chdir(path) {
    var lookup = FS.lookupPath(path, {
      follow: true
    });
    if (lookup.node === null) {
      throw new FS.ErrnoError(44);
    }
    if (!FS.isDir(lookup.node.mode)) {
      throw new FS.ErrnoError(54);
    }
    var errCode = FS.nodePermissions(lookup.node, "x");
    if (errCode) {
      throw new FS.ErrnoError(errCode);
    }
    FS.currentPath = lookup.path;
  },
  createDefaultDirectories() {
    FS.mkdir("/tmp");
    FS.mkdir("/home");
    FS.mkdir("/home/web_user");
  },
  createDefaultDevices() {
    // create /dev
    FS.mkdir("/dev");
    // setup /dev/null
    FS.registerDevice(FS.makedev(1, 3), {
      read: () => 0,
      write: (stream, buffer, offset, length, pos) => length,
      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) {
      if (typeof data == "string") {
        var arr = new Array(data.length);
        for (var i = 0, len = data.length; i < len; ++i) arr[i] = data.charCodeAt(i);
        data = arr;
      }
      // make sure we can write to the file
      FS.chmod(node, mode | 146);
      var stream = FS.open(node, 577);
      FS.write(stream, data, 0, data.length, 0, canOwn);
      FS.close(stream);
      FS.chmod(node, mode);
    }
  },
  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) {
        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 (typeof XMLHttpRequest != "undefined") {
      throw new Error("Lazy loading should have been performed (contents set) in createLazyFile, but it was not. Lazy loading only works in web workers. Use --embed-file or --preload-file in emcc on the main thread.");
    } else {
      // Command-line.
      try {
        obj.contents = readBinary(obj.url);
        obj.usedBytes = obj.contents.length;
      } 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)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status);
        var datalength = Number(xhr.getResponseHeader("Content-length"));
        var header;
        var hasByteServing = (header = xhr.getResponseHeader("Accept-Ranges")) && header === "bytes";
        var usesGzip = (header = xhr.getResponseHeader("Content-Encoding")) && header === "gzip";
        var chunkSize = 1024 * 1024;
        // Chunk size in bytes
        if (!hasByteServing) chunkSize = datalength;
        // Function to get a range from the remote URL.
        var doXHR = (from, to) => {
          if (from > to) throw new Error("invalid range (" + from + ", " + to + ") or no bytes requested!");
          if (to > datalength - 1) throw new Error("only " + datalength + " bytes available! programmer error!");
          // TODO: Use mozResponseArrayBuffer, responseStream, etc. if available.
          var xhr = new XMLHttpRequest;
          xhr.open("GET", url, false);
          if (datalength !== chunkSize) xhr.setRequestHeader("Range", "bytes=" + from + "-" + to);
          // Some hints to the browser that we want binary data.
          xhr.responseType = "arraybuffer";
          if (xhr.overrideMimeType) {
            xhr.overrideMimeType("text/plain; charset=x-user-defined");
          }
          xhr.send(null);
          if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status);
          if (xhr.response !== undefined) {
            return new Uint8Array(/** @type{Array<number>} */ (xhr.response || []));
          }
          return intArrayFromString(xhr.responseText || "", true);
        };
        var lazyArray = this;
        lazyArray.setDataGetter(chunkNum => {
          var start = chunkNum * chunkSize;
          var end = (chunkNum + 1) * chunkSize - 1;
          // including this byte
          end = Math.min(end, datalength - 1);
          // if datalength-1 is selected, this is the last block
          if (typeof lazyArray.chunks[chunkNum] == "undefined") {
            lazyArray.chunks[chunkNum] = doXHR(start, end);
          }
          if (typeof lazyArray.chunks[chunkNum] == "undefined") throw new Error("doXHR failed!");
          return lazyArray.chunks[chunkNum];
        });
        if (usesGzip || !datalength) {
          // if the server uses gzip or doesn't supply the length, we have to download the whole file to get the (uncompressed) length
          chunkSize = datalength = 1;
          // this will force getter(0)/doXHR do download the whole file
          datalength = this.getter(0).length;
          chunkSize = datalength;
          out("LazyFiles on gzip forces download of the whole file when length is accessed");
        }
        this._length = datalength;
        this._chunkSize = chunkSize;
        this.lengthKnown = true;
      }
      get length() {
        if (!this.lengthKnown) {
          this.cacheLength();
        }
        return this._length;
      }
      get chunkSize() {
        if (!this.lengthKnown) {
          this.cacheLength();
        }
        return this._chunkSize;
      }
    }
    if (typeof XMLHttpRequest != "undefined") {
      if (!ENVIRONMENT_IS_WORKER) throw "Cannot do synchronous binary XHRs outside webworkers in modern browsers. Use --embed-file or --preload-file in emcc";
      var lazyArray = new LazyUint8Array;
      var properties = {
        isDevice: false,
        contents: lazyArray
      };
    } else {
      var properties = {
        isDevice: false,
        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 = {};
    var keys = Object.keys(node.stream_ops);
    keys.forEach(key => {
      var fn = node.stream_ops[key];
      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, GROWABLE_HEAP_I8(), ptr, length, position);
      return {
        ptr,
        allocated: true
      };
    };
    node.stream_ops = stream_ops;
    return node;
  },
  absolutePath() {
    abort("FS.absolutePath has been removed; use PATH_FS.resolve instead");
  },
  createFolder() {
    abort("FS.createFolder has been removed; use FS.mkdir instead");
  },
  createLink() {
    abort("FS.createLink has been removed; use FS.symlink instead");
  },
  joinPath() {
    abort("FS.joinPath has been removed; use PATH.join instead");
  },
  mmapAlloc() {
    abort("FS.mmapAlloc has been replaced by the top level function mmapAlloc");
  },
  standardizePath() {
    abort("FS.standardizePath has been removed; use PATH.normalize instead");
  }
};

var SYSCALLS = {
  DEFAULT_POLLMASK: 5,
  calculateAt(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) {
    GROWABLE_HEAP_I32()[((buf) >> 2)] = stat.dev;
    GROWABLE_HEAP_I32()[(((buf) + (4)) >> 2)] = stat.mode;
    GROWABLE_HEAP_U32()[(((buf) + (8)) >> 2)] = stat.nlink;
    GROWABLE_HEAP_I32()[(((buf) + (12)) >> 2)] = stat.uid;
    GROWABLE_HEAP_I32()[(((buf) + (16)) >> 2)] = stat.gid;
    GROWABLE_HEAP_I32()[(((buf) + (20)) >> 2)] = stat.rdev;
    HEAP64[(((buf) + (24)) >> 3)] = BigInt(stat.size);
    GROWABLE_HEAP_I32()[(((buf) + (32)) >> 2)] = 4096;
    GROWABLE_HEAP_I32()[(((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 / 1e3));
    GROWABLE_HEAP_U32()[(((buf) + (48)) >> 2)] = (atime % 1e3) * 1e3 * 1e3;
    HEAP64[(((buf) + (56)) >> 3)] = BigInt(Math.floor(mtime / 1e3));
    GROWABLE_HEAP_U32()[(((buf) + (64)) >> 2)] = (mtime % 1e3) * 1e3 * 1e3;
    HEAP64[(((buf) + (72)) >> 3)] = BigInt(Math.floor(ctime / 1e3));
    GROWABLE_HEAP_U32()[(((buf) + (80)) >> 2)] = (ctime % 1e3) * 1e3 * 1e3;
    HEAP64[(((buf) + (88)) >> 3)] = BigInt(stat.ino);
    return 0;
  },
  writeStatFs(buf, stats) {
    GROWABLE_HEAP_I32()[(((buf) + (4)) >> 2)] = stats.bsize;
    GROWABLE_HEAP_I32()[(((buf) + (40)) >> 2)] = stats.bsize;
    GROWABLE_HEAP_I32()[(((buf) + (8)) >> 2)] = stats.blocks;
    GROWABLE_HEAP_I32()[(((buf) + (12)) >> 2)] = stats.bfree;
    GROWABLE_HEAP_I32()[(((buf) + (16)) >> 2)] = stats.bavail;
    GROWABLE_HEAP_I32()[(((buf) + (20)) >> 2)] = stats.files;
    GROWABLE_HEAP_I32()[(((buf) + (24)) >> 2)] = stats.ffree;
    GROWABLE_HEAP_I32()[(((buf) + (28)) >> 2)] = stats.fsid;
    GROWABLE_HEAP_I32()[(((buf) + (44)) >> 2)] = stats.flags;
    // ST_NOSUID
    GROWABLE_HEAP_I32()[(((buf) + (36)) >> 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 = GROWABLE_HEAP_U8().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_fcntl64(fd, cmd, varargs) {
  if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(3, 0, 1, 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.
        GROWABLE_HEAP_I16()[(((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;
  }
}

function ___syscall_fstat64(fd, buf) {
  if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(4, 0, 1, fd, buf);
  try {
    return SYSCALLS.writeStat(buf, FS.fstat(fd));
  } catch (e) {
    if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
    return -e.errno;
  }
}

function ___syscall_openat(dirfd, path, flags, varargs) {
  if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(5, 0, 1, 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 embindRepr = v => {
  if (v === null) {
    return "null";
  }
  var t = typeof v;
  if (t === "object" || t === "array" || t === "function") {
    return v.toString();
  } else {
    return "" + v;
  }
};

var embind_init_charCodes = () => {
  var codes = new Array(256);
  for (var i = 0; i < 256; ++i) {
    codes[i] = String.fromCharCode(i);
  }
  embind_charCodes = codes;
};

var embind_charCodes;

var readLatin1String = ptr => {
  var ret = "";
  var c = ptr;
  while (GROWABLE_HEAP_U8()[c]) {
    ret += embind_charCodes[GROWABLE_HEAP_U8()[c++]];
  }
  return ret;
};

var awaitingDependencies = {};

var registeredTypes = {};

var typeDependencies = {};

var BindingError = Module["BindingError"] = class BindingError extends Error {
  constructor(message) {
    super(message);
    this.name = "BindingError";
  }
};

var throwBindingError = message => {
  throw new BindingError(message);
};

/** @param {Object=} options */ function sharedRegisterType(rawType, registeredInstance, options = {}) {
  var name = registeredInstance.name;
  if (!rawType) {
    throwBindingError(`type "${name}" must have a positive integer typeid pointer`);
  }
  if (registeredTypes.hasOwnProperty(rawType)) {
    if (options.ignoreDuplicateRegistrations) {
      return;
    } else {
      throwBindingError(`Cannot register type '${name}' twice`);
    }
  }
  registeredTypes[rawType] = registeredInstance;
  delete typeDependencies[rawType];
  if (awaitingDependencies.hasOwnProperty(rawType)) {
    var callbacks = awaitingDependencies[rawType];
    delete awaitingDependencies[rawType];
    callbacks.forEach(cb => cb());
  }
}

/** @param {Object=} options */ function registerType(rawType, registeredInstance, options = {}) {
  if (registeredInstance.argPackAdvance === undefined) {
    throw new TypeError("registerType registeredInstance requires argPackAdvance");
  }
  return sharedRegisterType(rawType, registeredInstance, options);
}

var integerReadValueFromPointer = (name, width, signed) => {
  // integers are quite common, so generate very specialized functions
  switch (width) {
   case 1:
    return signed ? pointer => GROWABLE_HEAP_I8()[pointer] : pointer => GROWABLE_HEAP_U8()[pointer];

   case 2:
    return signed ? pointer => GROWABLE_HEAP_I16()[((pointer) >> 1)] : pointer => GROWABLE_HEAP_U16()[((pointer) >> 1)];

   case 4:
    return signed ? pointer => GROWABLE_HEAP_I32()[((pointer) >> 2)] : pointer => GROWABLE_HEAP_U32()[((pointer) >> 2)];

   case 8:
    return signed ? pointer => HEAP64[((pointer) >> 3)] : pointer => HEAPU64[((pointer) >> 3)];

   default:
    throw new TypeError(`invalid integer width (${width}): ${name}`);
  }
};

/** @suppress {globalThis} */ var __embind_register_bigint = (primitiveType, name, size, minRange, maxRange) => {
  name = readLatin1String(name);
  var isUnsignedType = (name.indexOf("u") != -1);
  // maxRange comes through as -1 for uint64_t (see issue 13902). Work around that temporarily
  if (isUnsignedType) {
    maxRange = (1n << 64n) - 1n;
  }
  registerType(primitiveType, {
    name,
    "fromWireType": value => value,
    "toWireType": function(destructors, value) {
      if (typeof value != "bigint" && typeof value != "number") {
        throw new TypeError(`Cannot convert "${embindRepr(value)}" to ${this.name}`);
      }
      if (typeof value == "number") {
        value = BigInt(value);
      }
      if (value < minRange || value > maxRange) {
        throw new TypeError(`Passing a number "${embindRepr(value)}" from JS side to C/C++ side to an argument of type "${name}", which is outside the valid range [${minRange}, ${maxRange}]!`);
      }
      return value;
    },
    argPackAdvance: GenericWireTypeSize,
    "readValueFromPointer": integerReadValueFromPointer(name, size, !isUnsignedType),
    destructorFunction: null
  });
};

var GenericWireTypeSize = 8;

/** @suppress {globalThis} */ var __embind_register_bool = (rawType, name, trueValue, falseValue) => {
  name = readLatin1String(name);
  registerType(rawType, {
    name,
    "fromWireType": function(wt) {
      // ambiguous emscripten ABI: sometimes return values are
      // true or false, and sometimes integers (0 or 1)
      return !!wt;
    },
    "toWireType": function(destructors, o) {
      return o ? trueValue : falseValue;
    },
    argPackAdvance: GenericWireTypeSize,
    "readValueFromPointer": function(pointer) {
      return this["fromWireType"](GROWABLE_HEAP_U8()[pointer]);
    },
    destructorFunction: null
  });
};

var emval_freelist = [];

var emval_handles = [];

var __emval_decref = handle => {
  if (handle > 9 && 0 === --emval_handles[handle + 1]) {
    assert(emval_handles[handle] !== undefined, `Decref for unallocated handle.`);
    emval_handles[handle] = undefined;
    emval_freelist.push(handle);
  }
};

var count_emval_handles = () => emval_handles.length / 2 - 5 - emval_freelist.length;

var init_emval = () => {
  // reserve 0 and some special values. These never get de-allocated.
  emval_handles.push(0, 1, undefined, 1, null, 1, true, 1, false, 1);
  assert(emval_handles.length === 5 * 2);
  Module["count_emval_handles"] = count_emval_handles;
};

var Emval = {
  toValue: handle => {
    if (!handle) {
      throwBindingError(`Cannot use deleted val. handle = ${handle}`);
    }
    // handle 2 is supposed to be `undefined`.
    assert(handle === 2 || emval_handles[handle] !== undefined && handle % 2 === 0, `invalid handle: ${handle}`);
    return emval_handles[handle];
  },
  toHandle: value => {
    switch (value) {
     case undefined:
      return 2;

     case null:
      return 4;

     case true:
      return 6;

     case false:
      return 8;

     default:
      {
        const handle = emval_freelist.pop() || emval_handles.length;
        emval_handles[handle] = value;
        emval_handles[handle + 1] = 1;
        return handle;
      }
    }
  }
};

/** @suppress {globalThis} */ function readPointer(pointer) {
  return this["fromWireType"](GROWABLE_HEAP_U32()[((pointer) >> 2)]);
}

var EmValType = {
  name: "emscripten::val",
  "fromWireType": handle => {
    var rv = Emval.toValue(handle);
    __emval_decref(handle);
    return rv;
  },
  "toWireType": (destructors, value) => Emval.toHandle(value),
  argPackAdvance: GenericWireTypeSize,
  "readValueFromPointer": readPointer,
  destructorFunction: null
};

var __embind_register_emval = rawType => registerType(rawType, EmValType);

var floatReadValueFromPointer = (name, width) => {
  switch (width) {
   case 4:
    return function(pointer) {
      return this["fromWireType"](GROWABLE_HEAP_F32()[((pointer) >> 2)]);
    };

   case 8:
    return function(pointer) {
      return this["fromWireType"](GROWABLE_HEAP_F64()[((pointer) >> 3)]);
    };

   default:
    throw new TypeError(`invalid float width (${width}): ${name}`);
  }
};

var __embind_register_float = (rawType, name, size) => {
  name = readLatin1String(name);
  registerType(rawType, {
    name,
    "fromWireType": value => value,
    "toWireType": (destructors, value) => {
      if (typeof value != "number" && typeof value != "boolean") {
        throw new TypeError(`Cannot convert ${embindRepr(value)} to ${this.name}`);
      }
      // The VM will perform JS to Wasm value conversion, according to the spec:
      // https://www.w3.org/TR/wasm-js-api-1/#towebassemblyvalue
      return value;
    },
    argPackAdvance: GenericWireTypeSize,
    "readValueFromPointer": floatReadValueFromPointer(name, size),
    destructorFunction: null
  });
};

/** @suppress {globalThis} */ var __embind_register_integer = (primitiveType, name, size, minRange, maxRange) => {
  name = readLatin1String(name);
  // LLVM doesn't have signed and unsigned 32-bit types, so u32 literals come
  // out as 'i32 -1'. Always treat those as max u32.
  if (maxRange === -1) {
    maxRange = 4294967295;
  }
  var fromWireType = value => value;
  if (minRange === 0) {
    var bitshift = 32 - 8 * size;
    fromWireType = value => (value << bitshift) >>> bitshift;
  }
  var isUnsignedType = (name.includes("unsigned"));
  var checkAssertions = (value, toTypeName) => {
    if (typeof value != "number" && typeof value != "boolean") {
      throw new TypeError(`Cannot convert "${embindRepr(value)}" to ${toTypeName}`);
    }
    if (value < minRange || value > maxRange) {
      throw new TypeError(`Passing a number "${embindRepr(value)}" from JS side to C/C++ side to an argument of type "${name}", which is outside the valid range [${minRange}, ${maxRange}]!`);
    }
  };
  var toWireType;
  if (isUnsignedType) {
    toWireType = function(destructors, value) {
      checkAssertions(value, this.name);
      return value >>> 0;
    };
  } else {
    toWireType = function(destructors, value) {
      checkAssertions(value, this.name);
      // The VM will perform JS to Wasm value conversion, according to the spec:
      // https://www.w3.org/TR/wasm-js-api-1/#towebassemblyvalue
      return value;
    };
  }
  registerType(primitiveType, {
    name,
    "fromWireType": fromWireType,
    "toWireType": toWireType,
    argPackAdvance: GenericWireTypeSize,
    "readValueFromPointer": integerReadValueFromPointer(name, size, minRange !== 0),
    destructorFunction: null
  });
};

var __embind_register_memory_view = (rawType, dataTypeIndex, name) => {
  var typeMapping = [ Int8Array, Uint8Array, Int16Array, Uint16Array, Int32Array, Uint32Array, Float32Array, Float64Array, BigInt64Array, BigUint64Array ];
  var TA = typeMapping[dataTypeIndex];
  function decodeMemoryView(handle) {
    var size = GROWABLE_HEAP_U32()[((handle) >> 2)];
    var data = GROWABLE_HEAP_U32()[(((handle) + (4)) >> 2)];
    return new TA(GROWABLE_HEAP_I8().buffer, data, size);
  }
  name = readLatin1String(name);
  registerType(rawType, {
    name,
    "fromWireType": decodeMemoryView,
    argPackAdvance: GenericWireTypeSize,
    "readValueFromPointer": decodeMemoryView
  }, {
    ignoreDuplicateRegistrations: true
  });
};

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, GROWABLE_HEAP_U8(), outPtr, maxBytesToWrite);
};

var __embind_register_std_string = (rawType, name) => {
  name = readLatin1String(name);
  var stdStringIsUTF8 = true;
  registerType(rawType, {
    name,
    // For some method names we use string keys here since they are part of
    // the public/external API and/or used by the runtime-generated code.
    "fromWireType"(value) {
      var length = GROWABLE_HEAP_U32()[((value) >> 2)];
      var payload = value + 4;
      var str;
      if (stdStringIsUTF8) {
        var decodeStartPtr = payload;
        // Looping here to support possible embedded '0' bytes
        for (var i = 0; i <= length; ++i) {
          var currentBytePtr = payload + i;
          if (i == length || GROWABLE_HEAP_U8()[currentBytePtr] == 0) {
            var maxRead = currentBytePtr - decodeStartPtr;
            var stringSegment = UTF8ToString(decodeStartPtr, maxRead);
            if (str === undefined) {
              str = stringSegment;
            } else {
              str += String.fromCharCode(0);
              str += stringSegment;
            }
            decodeStartPtr = currentBytePtr + 1;
          }
        }
      } else {
        var a = new Array(length);
        for (var i = 0; i < length; ++i) {
          a[i] = String.fromCharCode(GROWABLE_HEAP_U8()[payload + i]);
        }
        str = a.join("");
      }
      _free(value);
      return str;
    },
    "toWireType"(destructors, value) {
      if (value instanceof ArrayBuffer) {
        value = new Uint8Array(value);
      }
      var length;
      var valueIsOfTypeString = (typeof value == "string");
      // We accept `string` or array views with single byte elements
      if (!(valueIsOfTypeString || (ArrayBuffer.isView(value) && value.BYTES_PER_ELEMENT == 1))) {
        throwBindingError("Cannot pass non-string to std::string");
      }
      if (stdStringIsUTF8 && valueIsOfTypeString) {
        length = lengthBytesUTF8(value);
      } else {
        length = value.length;
      }
      // assumes POINTER_SIZE alignment
      var base = _malloc(4 + length + 1);
      var ptr = base + 4;
      GROWABLE_HEAP_U32()[((base) >> 2)] = length;
      if (valueIsOfTypeString) {
        if (stdStringIsUTF8) {
          stringToUTF8(value, ptr, length + 1);
        } else {
          for (var i = 0; i < length; ++i) {
            var charCode = value.charCodeAt(i);
            if (charCode > 255) {
              _free(base);
              throwBindingError("String has UTF-16 code units that do not fit in 8 bits");
            }
            GROWABLE_HEAP_U8()[ptr + i] = charCode;
          }
        }
      } else {
        GROWABLE_HEAP_U8().set(value, ptr);
      }
      if (destructors !== null) {
        destructors.push(_free, base);
      }
      return base;
    },
    argPackAdvance: GenericWireTypeSize,
    "readValueFromPointer": readPointer,
    destructorFunction(ptr) {
      _free(ptr);
    }
  });
};

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

var UTF16ToString = (ptr, maxBytesToRead) => {
  assert(ptr % 2 == 0, "Pointer passed to UTF16ToString must be aligned to two bytes!");
  var endPtr = ptr;
  // TextDecoder needs to know the byte length in advance, it doesn't stop on
  // null terminator by itself.
  // Also, use the length info to avoid running tiny strings through
  // TextDecoder, since .subarray() allocates garbage.
  var idx = endPtr >> 1;
  var maxIdx = idx + maxBytesToRead / 2;
  // If maxBytesToRead is not passed explicitly, it will be undefined, and this
  // will always evaluate to true. This saves on code size.
  while (!(idx >= maxIdx) && GROWABLE_HEAP_U16()[idx]) ++idx;
  endPtr = idx << 1;
  if (endPtr - ptr > 32 && UTF16Decoder) return UTF16Decoder.decode(GROWABLE_HEAP_U8().slice(ptr, endPtr));
  // Fallback: decode without UTF16Decoder
  var str = "";
  // If maxBytesToRead is not passed explicitly, it will be undefined, and the
  // for-loop's condition will always evaluate to true. The loop is then
  // terminated on the first null char.
  for (var i = 0; !(i >= maxBytesToRead / 2); ++i) {
    var codeUnit = GROWABLE_HEAP_I16()[(((ptr) + (i * 2)) >> 1)];
    if (codeUnit == 0) break;
    // fromCharCode constructs a character from a UTF-16 code unit, so we can
    // pass the UTF16 string right through.
    str += String.fromCharCode(codeUnit);
  }
  return str;
};

var stringToUTF16 = (str, outPtr, maxBytesToWrite) => {
  assert(outPtr % 2 == 0, "Pointer passed to stringToUTF16 must be aligned to two bytes!");
  assert(typeof maxBytesToWrite == "number", "stringToUTF16(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!");
  // Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed.
  maxBytesToWrite ??= 2147483647;
  if (maxBytesToWrite < 2) return 0;
  maxBytesToWrite -= 2;
  // Null terminator.
  var startPtr = outPtr;
  var numCharsToWrite = (maxBytesToWrite < str.length * 2) ? (maxBytesToWrite / 2) : str.length;
  for (var i = 0; i < numCharsToWrite; ++i) {
    // charCodeAt returns a UTF-16 encoded code unit, so it can be directly written to the HEAP.
    var codeUnit = str.charCodeAt(i);
    // possibly a lead surrogate
    GROWABLE_HEAP_I16()[((outPtr) >> 1)] = codeUnit;
    outPtr += 2;
  }
  // Null-terminate the pointer to the HEAP.
  GROWABLE_HEAP_I16()[((outPtr) >> 1)] = 0;
  return outPtr - startPtr;
};

var lengthBytesUTF16 = str => str.length * 2;

var UTF32ToString = (ptr, maxBytesToRead) => {
  assert(ptr % 4 == 0, "Pointer passed to UTF32ToString must be aligned to four bytes!");
  var i = 0;
  var str = "";
  // If maxBytesToRead is not passed explicitly, it will be undefined, and this
  // will always evaluate to true. This saves on code size.
  while (!(i >= maxBytesToRead / 4)) {
    var utf32 = GROWABLE_HEAP_I32()[(((ptr) + (i * 4)) >> 2)];
    if (utf32 == 0) break;
    ++i;
    // Gotcha: fromCharCode constructs a character from a UTF-16 encoded code (pair), not from a Unicode code point! So encode the code point to UTF-16 for constructing.
    // See http://unicode.org/faq/utf_bom.html#utf16-3
    if (utf32 >= 65536) {
      var ch = utf32 - 65536;
      str += String.fromCharCode(55296 | (ch >> 10), 56320 | (ch & 1023));
    } else {
      str += String.fromCharCode(utf32);
    }
  }
  return str;
};

var stringToUTF32 = (str, outPtr, maxBytesToWrite) => {
  assert(outPtr % 4 == 0, "Pointer passed to stringToUTF32 must be aligned to four bytes!");
  assert(typeof maxBytesToWrite == "number", "stringToUTF32(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!");
  // Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed.
  maxBytesToWrite ??= 2147483647;
  if (maxBytesToWrite < 4) return 0;
  var startPtr = outPtr;
  var endPtr = startPtr + maxBytesToWrite - 4;
  for (var i = 0; i < str.length; ++i) {
    // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap.
    // See http://unicode.org/faq/utf_bom.html#utf16-3
    var codeUnit = str.charCodeAt(i);
    // possibly a lead surrogate
    if (codeUnit >= 55296 && codeUnit <= 57343) {
      var trailSurrogate = str.charCodeAt(++i);
      codeUnit = 65536 + ((codeUnit & 1023) << 10) | (trailSurrogate & 1023);
    }
    GROWABLE_HEAP_I32()[((outPtr) >> 2)] = codeUnit;
    outPtr += 4;
    if (outPtr + 4 > endPtr) break;
  }
  // Null-terminate the pointer to the HEAP.
  GROWABLE_HEAP_I32()[((outPtr) >> 2)] = 0;
  return outPtr - startPtr;
};

var lengthBytesUTF32 = str => {
  var len = 0;
  for (var i = 0; i < str.length; ++i) {
    // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap.
    // See http://unicode.org/faq/utf_bom.html#utf16-3
    var codeUnit = str.charCodeAt(i);
    if (codeUnit >= 55296 && codeUnit <= 57343) ++i;
    // possibly a lead surrogate, so skip over the tail surrogate.
    len += 4;
  }
  return len;
};

var __embind_register_std_wstring = (rawType, charSize, name) => {
  name = readLatin1String(name);
  var decodeString, encodeString, readCharAt, lengthBytesUTF;
  if (charSize === 2) {
    decodeString = UTF16ToString;
    encodeString = stringToUTF16;
    lengthBytesUTF = lengthBytesUTF16;
    readCharAt = pointer => GROWABLE_HEAP_U16()[((pointer) >> 1)];
  } else if (charSize === 4) {
    decodeString = UTF32ToString;
    encodeString = stringToUTF32;
    lengthBytesUTF = lengthBytesUTF32;
    readCharAt = pointer => GROWABLE_HEAP_U32()[((pointer) >> 2)];
  }
  registerType(rawType, {
    name,
    "fromWireType": value => {
      // Code mostly taken from _embind_register_std_string fromWireType
      var length = GROWABLE_HEAP_U32()[((value) >> 2)];
      var str;
      var decodeStartPtr = value + 4;
      // Looping here to support possible embedded '0' bytes
      for (var i = 0; i <= length; ++i) {
        var currentBytePtr = value + 4 + i * charSize;
        if (i == length || readCharAt(currentBytePtr) == 0) {
          var maxReadBytes = currentBytePtr - decodeStartPtr;
          var stringSegment = decodeString(decodeStartPtr, maxReadBytes);
          if (str === undefined) {
            str = stringSegment;
          } else {
            str += String.fromCharCode(0);
            str += stringSegment;
          }
          decodeStartPtr = currentBytePtr + charSize;
        }
      }
      _free(value);
      return str;
    },
    "toWireType": (destructors, value) => {
      if (!(typeof value == "string")) {
        throwBindingError(`Cannot pass non-string to C++ string type ${name}`);
      }
      // assumes POINTER_SIZE alignment
      var length = lengthBytesUTF(value);
      var ptr = _malloc(4 + length + charSize);
      GROWABLE_HEAP_U32()[((ptr) >> 2)] = length / charSize;
      encodeString(value, ptr + 4, length + charSize);
      if (destructors !== null) {
        destructors.push(_free, ptr);
      }
      return ptr;
    },
    argPackAdvance: GenericWireTypeSize,
    "readValueFromPointer": readPointer,
    destructorFunction(ptr) {
      _free(ptr);
    }
  });
};

var __embind_register_void = (rawType, name) => {
  name = readLatin1String(name);
  registerType(rawType, {
    isVoid: true,
    // void return values can be optimized out sometimes
    name,
    argPackAdvance: 0,
    "fromWireType": () => undefined,
    // TODO: assert if anything else is given?
    "toWireType": (destructors, o) => undefined
  });
};

var __emscripten_init_main_thread_js = tb => {
  // Pass the thread address to the native code where they stored in wasm
  // globals which act as a form of TLS. Global constructors trying
  // to access this value will read the wrong value, but that is UB anyway.
  __emscripten_thread_init(tb, /*is_main=*/ !ENVIRONMENT_IS_WORKER, /*is_runtime=*/ 1, /*can_block=*/ !ENVIRONMENT_IS_WEB, /*default_stacksize=*/ 16777216, /*start_profiling=*/ false);
  PThread.threadInitTLS();
};

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 16777216)");
    }
  }
  quit_(1, e);
};

var maybeExit = () => {
  if (!keepRuntimeAlive()) {
    try {
      if (ENVIRONMENT_IS_PTHREAD) __emscripten_thread_exit(EXITSTATUS); else _exit(EXITSTATUS);
    } catch (e) {
      handleException(e);
    }
  }
};

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

var __emscripten_thread_mailbox_await = pthread_ptr => {
  if (typeof Atomics.waitAsync === "function") {
    // Wait on the pthread's initial self-pointer field because it is easy and
    // safe to access from sending threads that need to notify the waiting
    // thread.
    // TODO: How to make this work with wasm64?
    var wait = Atomics.waitAsync(GROWABLE_HEAP_I32(), ((pthread_ptr) >> 2), pthread_ptr);
    assert(wait.async);
    wait.value.then(checkMailbox);
    var waitingAsync = pthread_ptr + 128;
    Atomics.store(GROWABLE_HEAP_I32(), ((waitingAsync) >> 2), 1);
  }
};

var checkMailbox = () => {
  // Only check the mailbox if we have a live pthread runtime. We implement
  // pthread_self to return 0 if there is no live runtime.
  var pthread_ptr = _pthread_self();
  if (pthread_ptr) {
    // If we are using Atomics.waitAsync as our notification mechanism, wait
    // for a notification before processing the mailbox to avoid missing any
    // work that could otherwise arrive after we've finished processing the
    // mailbox and before we're ready for the next notification.
    __emscripten_thread_mailbox_await(pthread_ptr);
    callUserCallback(__emscripten_check_mailbox);
  }
};

var __emscripten_notify_mailbox_postmessage = (targetThread, currThreadId) => {
  if (targetThread == currThreadId) {
    setTimeout(checkMailbox);
  } else if (ENVIRONMENT_IS_PTHREAD) {
    postMessage({
      targetThread,
      cmd: "checkMailbox"
    });
  } else {
    var worker = PThread.pthreads[targetThread];
    if (!worker) {
      err(`Cannot send message to thread with ID ${targetThread}, unknown thread ID!`);
      return;
    }
    worker.postMessage({
      cmd: "checkMailbox"
    });
  }
};

var proxiedJSCallArgs = [];

var __emscripten_receive_on_main_thread_js = (funcIndex, emAsmAddr, callingThread, numCallArgs, args) => {
  // Sometimes we need to backproxy events to the calling thread (e.g.
  // HTML5 DOM events handlers such as
  // emscripten_set_mousemove_callback()), so keep track in a globally
  // accessible variable about the thread that initiated the proxying.
  numCallArgs /= 2;
  proxiedJSCallArgs.length = numCallArgs;
  var b = ((args) >> 3);
  for (var i = 0; i < numCallArgs; i++) {
    if (HEAP64[b + 2 * i]) {
      // It's a BigInt.
      proxiedJSCallArgs[i] = HEAP64[b + 2 * i + 1];
    } else {
      // It's a Number.
      proxiedJSCallArgs[i] = GROWABLE_HEAP_F64()[b + 2 * i + 1];
    }
  }
  // Proxied JS library funcs use funcIndex and EM_ASM functions use emAsmAddr
  var func = emAsmAddr ? ASM_CONSTS[emAsmAddr] : proxiedFunctionTable[funcIndex];
  assert(!(funcIndex && emAsmAddr));
  assert(func.length == numCallArgs, "Call args mismatch in _emscripten_receive_on_main_thread_js");
  PThread.currentProxiedOperationCallerThread = callingThread;
  var rtn = func(...proxiedJSCallArgs);
  PThread.currentProxiedOperationCallerThread = 0;
  // Proxied functions can return any type except bigint.  All other types
  // cooerce to f64/double (the return type of this function in C) but not
  // bigint.
  assert(typeof rtn != "bigint");
  return rtn;
};

var __emscripten_runtime_keepalive_clear = () => {
  noExitRuntime = false;
  runtimeKeepaliveCounter = 0;
};

var __emscripten_thread_cleanup = thread => {
  // Called when a thread needs to be cleaned up so it can be reused.
  // A thread is considered reusable when it either returns from its
  // entry point, calls pthread_exit, or acts upon a cancellation.
  // Detached threads are responsible for calling this themselves,
  // otherwise pthread_join is responsible for calling this.
  if (!ENVIRONMENT_IS_PTHREAD) cleanupThread(thread); else postMessage({
    cmd: "cleanupThread",
    thread
  });
};

var __emscripten_thread_set_strongref = thread => {};

var __emscripten_throw_longjmp = () => {
  throw Infinity;
};

var INT53_MAX = 9007199254740992;

var INT53_MIN = -9007199254740992;

var bigintToI53Checked = num => (num < INT53_MIN || num > INT53_MAX) ? NaN : Number(num);

function __gmtime_js(time, tmPtr) {
  time = bigintToI53Checked(time);
  var date = new Date(time * 1e3);
  GROWABLE_HEAP_I32()[((tmPtr) >> 2)] = date.getUTCSeconds();
  GROWABLE_HEAP_I32()[(((tmPtr) + (4)) >> 2)] = date.getUTCMinutes();
  GROWABLE_HEAP_I32()[(((tmPtr) + (8)) >> 2)] = date.getUTCHours();
  GROWABLE_HEAP_I32()[(((tmPtr) + (12)) >> 2)] = date.getUTCDate();
  GROWABLE_HEAP_I32()[(((tmPtr) + (16)) >> 2)] = date.getUTCMonth();
  GROWABLE_HEAP_I32()[(((tmPtr) + (20)) >> 2)] = date.getUTCFullYear() - 1900;
  GROWABLE_HEAP_I32()[(((tmPtr) + (24)) >> 2)] = date.getUTCDay();
  var start = Date.UTC(date.getUTCFullYear(), 0, 1, 0, 0, 0, 0);
  var yday = ((date.getTime() - start) / (1e3 * 60 * 60 * 24)) | 0;
  GROWABLE_HEAP_I32()[(((tmPtr) + (28)) >> 2)] = yday;
}

var isLeapYear = year => year % 4 === 0 && (year % 100 !== 0 || year % 400 === 0);

var MONTH_DAYS_LEAP_CUMULATIVE = [ 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335 ];

var MONTH_DAYS_REGULAR_CUMULATIVE = [ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 ];

var ydayFromDate = date => {
  var leap = isLeapYear(date.getFullYear());
  var monthDaysCumulative = (leap ? MONTH_DAYS_LEAP_CUMULATIVE : MONTH_DAYS_REGULAR_CUMULATIVE);
  var yday = monthDaysCumulative[date.getMonth()] + date.getDate() - 1;
  // -1 since it's days since Jan 1
  return yday;
};

function __localtime_js(time, tmPtr) {
  time = bigintToI53Checked(time);
  var date = new Date(time * 1e3);
  GROWABLE_HEAP_I32()[((tmPtr) >> 2)] = date.getSeconds();
  GROWABLE_HEAP_I32()[(((tmPtr) + (4)) >> 2)] = date.getMinutes();
  GROWABLE_HEAP_I32()[(((tmPtr) + (8)) >> 2)] = date.getHours();
  GROWABLE_HEAP_I32()[(((tmPtr) + (12)) >> 2)] = date.getDate();
  GROWABLE_HEAP_I32()[(((tmPtr) + (16)) >> 2)] = date.getMonth();
  GROWABLE_HEAP_I32()[(((tmPtr) + (20)) >> 2)] = date.getFullYear() - 1900;
  GROWABLE_HEAP_I32()[(((tmPtr) + (24)) >> 2)] = date.getDay();
  var yday = ydayFromDate(date) | 0;
  GROWABLE_HEAP_I32()[(((tmPtr) + (28)) >> 2)] = yday;
  GROWABLE_HEAP_I32()[(((tmPtr) + (36)) >> 2)] = -(date.getTimezoneOffset() * 60);
  // Attention: DST is in December in South, and some regions don't have DST at all.
  var start = new Date(date.getFullYear(), 0, 1);
  var summerOffset = new Date(date.getFullYear(), 6, 1).getTimezoneOffset();
  var winterOffset = start.getTimezoneOffset();
  var dst = (summerOffset != winterOffset && date.getTimezoneOffset() == Math.min(winterOffset, summerOffset)) | 0;
  GROWABLE_HEAP_I32()[(((tmPtr) + (32)) >> 2)] = dst;
}

var __mktime_js = function(tmPtr) {
  var ret = (() => {
    var date = new Date(GROWABLE_HEAP_I32()[(((tmPtr) + (20)) >> 2)] + 1900, GROWABLE_HEAP_I32()[(((tmPtr) + (16)) >> 2)], GROWABLE_HEAP_I32()[(((tmPtr) + (12)) >> 2)], GROWABLE_HEAP_I32()[(((tmPtr) + (8)) >> 2)], GROWABLE_HEAP_I32()[(((tmPtr) + (4)) >> 2)], GROWABLE_HEAP_I32()[((tmPtr) >> 2)], 0);
    // There's an ambiguous hour when the time goes back; the tm_isdst field is
    // used to disambiguate it.  Date() basically guesses, so we fix it up if it
    // guessed wrong, or fill in tm_isdst with the guess if it's -1.
    var dst = GROWABLE_HEAP_I32()[(((tmPtr) + (32)) >> 2)];
    var guessedOffset = date.getTimezoneOffset();
    var start = new Date(date.getFullYear(), 0, 1);
    var summerOffset = new Date(date.getFullYear(), 6, 1).getTimezoneOffset();
    var winterOffset = start.getTimezoneOffset();
    var dstOffset = Math.min(winterOffset, summerOffset);
    // DST is in December in South
    if (dst < 0) {
      // Attention: some regions don't have DST at all.
      GROWABLE_HEAP_I32()[(((tmPtr) + (32)) >> 2)] = Number(summerOffset != winterOffset && dstOffset == guessedOffset);
    } else if ((dst > 0) != (dstOffset == guessedOffset)) {
      var nonDstOffset = Math.max(winterOffset, summerOffset);
      var trueOffset = dst > 0 ? dstOffset : nonDstOffset;
      // Don't try setMinutes(date.getMinutes() + ...) -- it's messed up.
      date.setTime(date.getTime() + (trueOffset - guessedOffset) * 6e4);
    }
    GROWABLE_HEAP_I32()[(((tmPtr) + (24)) >> 2)] = date.getDay();
    var yday = ydayFromDate(date) | 0;
    GROWABLE_HEAP_I32()[(((tmPtr) + (28)) >> 2)] = yday;
    // To match expected behavior, update fields from date
    GROWABLE_HEAP_I32()[((tmPtr) >> 2)] = date.getSeconds();
    GROWABLE_HEAP_I32()[(((tmPtr) + (4)) >> 2)] = date.getMinutes();
    GROWABLE_HEAP_I32()[(((tmPtr) + (8)) >> 2)] = date.getHours();
    GROWABLE_HEAP_I32()[(((tmPtr) + (12)) >> 2)] = date.getDate();
    GROWABLE_HEAP_I32()[(((tmPtr) + (16)) >> 2)] = date.getMonth();
    GROWABLE_HEAP_I32()[(((tmPtr) + (20)) >> 2)] = date.getYear();
    var timeMs = date.getTime();
    if (isNaN(timeMs)) {
      return -1;
    }
    // Return time in microseconds
    return timeMs / 1e3;
  })();
  return BigInt(ret);
};

function __mmap_js(len, prot, flags, fd, offset, allocated, addr) {
  if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(6, 0, 1, len, prot, flags, fd, offset, allocated, addr);
  offset = bigintToI53Checked(offset);
  try {
    if (isNaN(offset)) return 61;
    var stream = SYSCALLS.getStreamFromFD(fd);
    var res = FS.mmap(stream, len, offset, prot, flags);
    var ptr = res.ptr;
    GROWABLE_HEAP_I32()[((allocated) >> 2)] = res.allocated;
    GROWABLE_HEAP_U32()[((addr) >> 2)] = ptr;
    return 0;
  } catch (e) {
    if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
    return -e.errno;
  }
}

function __munmap_js(addr, len, prot, flags, fd, offset) {
  if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(7, 0, 1, addr, len, prot, flags, fd, offset);
  offset = bigintToI53Checked(offset);
  try {
    var stream = SYSCALLS.getStreamFromFD(fd);
    if (prot & 2) {
      SYSCALLS.doMsync(addr, stream, len, flags, offset);
    }
  } catch (e) {
    if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
    return -e.errno;
  }
}

var timers = {};

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

function __setitimer_js(which, timeout_ms) {
  if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(8, 0, 1, which, timeout_ms);
  // First, clear any existing timer.
  if (timers[which]) {
    clearTimeout(timers[which].id);
    delete timers[which];
  }
  // A timeout of zero simply cancels the current timeout so we have nothing
  // more to do.
  if (!timeout_ms) return 0;
  var id = setTimeout(() => {
    assert(which in timers);
    delete timers[which];
    callUserCallback(() => __emscripten_timeout(which, _emscripten_get_now()));
  }, timeout_ms);
  timers[which] = {
    id,
    timeout_ms
  };
  return 0;
}

var __tzset_js = (timezone, daylight, std_name, dst_name) => {
  // TODO: Use (malleable) environment variables instead of system settings.
  var currentYear = (new Date).getFullYear();
  var winter = new Date(currentYear, 0, 1);
  var summer = new Date(currentYear, 6, 1);
  var winterOffset = winter.getTimezoneOffset();
  var summerOffset = summer.getTimezoneOffset();
  // Local standard timezone offset. Local standard time is not adjusted for
  // daylight savings.  This code uses the fact that getTimezoneOffset returns
  // a greater value during Standard Time versus Daylight Saving Time (DST).
  // Thus it determines the expected output during Standard Time, and it
  // compares whether the output of the given date the same (Standard) or less
  // (DST).
  var stdTimezoneOffset = Math.max(winterOffset, summerOffset);
  // timezone is specified as seconds west of UTC ("The external variable
  // `timezone` shall be set to the difference, in seconds, between
  // Coordinated Universal Time (UTC) and local standard time."), the same
  // as returned by stdTimezoneOffset.
  // See http://pubs.opengroup.org/onlinepubs/009695399/functions/tzset.html
  GROWABLE_HEAP_U32()[((timezone) >> 2)] = stdTimezoneOffset * 60;
  GROWABLE_HEAP_I32()[((daylight) >> 2)] = Number(winterOffset != summerOffset);
  var extractZone = timezoneOffset => {
    // Why inverse sign?
    // Read here https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTimezoneOffset
    var sign = timezoneOffset >= 0 ? "-" : "+";
    var absOffset = Math.abs(timezoneOffset);
    var hours = String(Math.floor(absOffset / 60)).padStart(2, "0");
    var minutes = String(absOffset % 60).padStart(2, "0");
    return `UTC${sign}${hours}${minutes}`;
  };
  var winterName = extractZone(winterOffset);
  var summerName = extractZone(summerOffset);
  assert(winterName);
  assert(summerName);
  assert(lengthBytesUTF8(winterName) <= 16, `timezone name truncated to fit in TZNAME_MAX (${winterName})`);
  assert(lengthBytesUTF8(summerName) <= 16, `timezone name truncated to fit in TZNAME_MAX (${summerName})`);
  if (summerOffset < winterOffset) {
    // Northern hemisphere
    stringToUTF8(winterName, std_name, 17);
    stringToUTF8(summerName, dst_name, 17);
  } else {
    stringToUTF8(winterName, dst_name, 17);
    stringToUTF8(summerName, std_name, 17);
  }
};

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

var nowIsMonotonic = 1;

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

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 * 1e3 * 1e3);
  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 = GROWABLE_HEAP_U8()[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 ? GROWABLE_HEAP_U32()[((buf) >> 2)] : ch == 106 ? HEAP64[((buf) >> 3)] : ch == 105 ? GROWABLE_HEAP_I32()[((buf) >> 2)] : GROWABLE_HEAP_F64()[((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_int = (code, sigPtr, argbuf) => runEmAsmFunction(code, sigPtr, argbuf);

var _emscripten_check_blocking_allowed = () => {
  if (ENVIRONMENT_IS_WORKER) return;
  // Blocking in a worker/pthread is fine.
  warnOnce("Blocking on the main thread is very dangerous, see https://emscripten.org/docs/porting/pthreads.html#blocking-on-the-main-browser-thread");
};

var _emscripten_exit_with_live_runtime = () => {
  runtimeKeepalivePush();
  throw "unwind";
};

function _emscripten_fetch_free(id) {
  if (Fetch.xhrs.has(id)) {
    var xhr = Fetch.xhrs.get(id);
    Fetch.xhrs.free(id);
    // check if fetch is still in progress and should be aborted
    if (xhr.readyState > 0 && xhr.readyState < 4) {
      xhr.abort();
    }
  }
}

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 _emscripten_get_heap_max = () => getHeapMax();

var _emscripten_num_logical_cores = () => navigator["hardwareConcurrency"];

var growMemory = size => {
  var b = wasmMemory.buffer;
  var pages = ((size - b.byteLength + 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;
  } catch (e) {
    err(`growMemory: Attempted to grow heap from ${b.byteLength} bytes to ${size} bytes, but got error: ${e}`);
  }
};

var _emscripten_resize_heap = requestedSize => {
  var oldSize = GROWABLE_HEAP_U8().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.
  if (requestedSize <= oldSize) {
    return false;
  }
  // 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 + .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;
};

var _emscripten_runtime_keepalive_check = keepRuntimeAlive;

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

var setOffscreenCanvasSizeOnTargetThread = (targetThread, targetCanvas, width, height) => {
  targetCanvas = targetCanvas ? UTF8ToString(targetCanvas) : "";
  var targetCanvasPtr = 0;
  if (targetCanvas) {
    targetCanvasPtr = stringToNewUTF8(targetCanvas);
  }
  __emscripten_set_offscreencanvas_size_on_thread(targetThread, targetCanvasPtr, width, height);
};

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_WEBGL_draw_instanced_base_vertex_base_instance = ctx => // Closure is expected to be allowed to minify the '.dibvbi' property, so not accessing it quoted.
!!(ctx.dibvbi = ctx.getExtension("WEBGL_draw_instanced_base_vertex_base_instance"));

var webgl_enable_WEBGL_multi_draw_instanced_base_vertex_base_instance = ctx => !!(ctx.mdibvbi = ctx.getExtension("WEBGL_multi_draw_instanced_base_vertex_base_instance"));

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 2 extensions
  "EXT_color_buffer_float", "EXT_conservative_depth", "EXT_disjoint_timer_query_webgl2", "EXT_texture_norm16", "NV_shader_noperspective_interpolation", "WEBGL_clip_cull_distance", // 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: [],
  samplers: [],
  transformFeedbacks: [],
  syncs: [],
  stringCache: {},
  stringiCache: {},
  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(1282);
      }
      GROWABLE_HEAP_I32()[(((buffers) + (i * 4)) >> 2)] = id;
    }
  },
  getSource: (shader, count, string, length) => {
    var source = "";
    for (var i = 0; i < count; ++i) {
      var len = length ? GROWABLE_HEAP_U32()[(((length) + (i * 4)) >> 2)] : undefined;
      source += UTF8ToString(GROWABLE_HEAP_U32()[(((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://bugs.webkit.org/show_bug.cgi?id=222758
    // and:
    //   https://github.com/emscripten-core/emscripten/issues/13295.
    // TODO: Once the bug is fixed and shipped in Safari, adjust the Safari
    // version field in above check.
    if (!canvas.getContextSafariWebGL2Fixed) {
      canvas.getContextSafariWebGL2Fixed = canvas.getContext;
      /** @type {function(this:HTMLCanvasElement, string, (Object|null)=): (Object|null)} */ function fixedGetContext(ver, attrs) {
        var gl = canvas.getContextSafariWebGL2Fixed(ver, attrs);
        return ((ver == "webgl") == (gl instanceof WebGLRenderingContext)) ? gl : null;
      }
      canvas.getContext = fixedGetContext;
    }
    var ctx = (webGLContextAttributes.majorVersion > 1) ? canvas.getContext("webgl2", webGLContextAttributes) : canvas.getContext("webgl", webGLContextAttributes);
    if (!ctx) return 0;
    var handle = GL.registerContext(ctx, webGLContextAttributes);
    return handle;
  },
  registerContext: (ctx, webGLContextAttributes) => {
    // with pthreads a context is a location in memory with some synchronized
    // data between threads
    var handle = _malloc(8);
    GROWABLE_HEAP_U32()[(((handle) + (4)) >> 2)] = _pthread_self();
    // the thread pointer of the thread that owns the control of the context
    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 => 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;
    }
    _free(GL.contexts[contextHandle].handle);
    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, ction 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);
    // Extensions that are available from WebGL >= 2 (no-op if called on a WebGL 1 context active)
    webgl_enable_WEBGL_draw_instanced_base_vertex_base_instance(GLctx);
    webgl_enable_WEBGL_multi_draw_instanced_base_vertex_base_instance(GLctx);
    // On WebGL 2, EXT_disjoint_timer_query is replaced with an alternative
    // that's based on core APIs, and exposes only the queryCounterEXT()
    // entrypoint.
    if (context.version >= 2) {
      GLctx.disjointTimerQueryExt = GLctx.getExtension("EXT_disjoint_timer_query_webgl2");
    }
    // However, Firefox exposes the WebGL 1 version on WebGL 2 as well and
    // thus we look for the WebGL 1 version again if the WebGL 2 version
    // isn't present. https://bugzilla.mozilla.org/show_bug.cgi?id=1328882
    if (context.version < 2 || !GLctx.disjointTimerQueryExt) {
      GLctx.disjointTimerQueryExt = GLctx.getExtension("EXT_disjoint_timer_query");
    }
    getEmscriptenSupportedExtensions(GLctx).forEach(ext => {
      // WEBGL_lose_context, WEBGL_debug_renderer_info and WEBGL_debug_shaders
      // are not enabled by default.
      if (!ext.includes("lose_context") && !ext.includes("debug")) {
        // Call .getExtension() to enable that extension permanently.
        GLctx.getExtension(ext);
      }
    });
  }
};

var maybeCStringToJsString = cString => cString > 2 ? UTF8ToString(cString) : cString;

var findCanvasEventTarget = target => {
  target = maybeCStringToJsString(target);
  // When compiling with OffscreenCanvas support and looking up a canvas to target,
  // we first look up if the target Canvas has been transferred to OffscreenCanvas use.
  // These transfers are represented/tracked by GL.offscreenCanvases object, which contain
  // the OffscreenCanvas element for each regular Canvas element that has been transferred.
  // Note that each pthread/worker have their own set of GL.offscreenCanvases. That is,
  // when an OffscreenCanvas is transferred from a pthread/main thread to another pthread,
  // it will move in the GL.offscreenCanvases array between threads. Hence GL.offscreenCanvases
  // represents the set of OffscreenCanvases owned by the current calling thread.
  // First check out the list of OffscreenCanvases by CSS selector ID ('#myCanvasID')
  return GL.offscreenCanvases[target.slice(1)] || (target == "canvas" && Object.keys(GL.offscreenCanvases)[0]) || (typeof document != "undefined" && document.querySelector(target));
};

var setCanvasElementSizeCallingThread = (target, width, height) => {
  var canvas = findCanvasEventTarget(target);
  if (!canvas) return -4;
  if (canvas.canvasSharedPtr) {
    // N.B. We hold the canvasSharedPtr info structure as the authoritative source for specifying the size of a canvas
    // since the actual canvas size changes are asynchronous if the canvas is owned by an OffscreenCanvas on another thread.
    // Therefore when setting the size, eagerly set the size of the canvas on the calling thread here, though this thread
    // might not be the one that actually ends up specifying the size, but the actual size change may be dispatched
    // as an asynchronous event below.
    GROWABLE_HEAP_I32()[((canvas.canvasSharedPtr) >> 2)] = width;
    GROWABLE_HEAP_I32()[(((canvas.canvasSharedPtr) + (4)) >> 2)] = height;
  }
  if (canvas.offscreenCanvas || !canvas.controlTransferredOffscreen) {
    if (canvas.offscreenCanvas) canvas = canvas.offscreenCanvas;
    var autoResizeViewport = false;
    if (canvas.GLctxObject?.GLctx) {
      var prevViewport = canvas.GLctxObject.GLctx.getParameter(2978);
      // TODO: Perhaps autoResizeViewport should only be true if FBO 0 is currently active?
      autoResizeViewport = (prevViewport[0] === 0 && prevViewport[1] === 0 && prevViewport[2] === canvas.width && prevViewport[3] === canvas.height);
    }
    canvas.width = width;
    canvas.height = height;
    if (autoResizeViewport) {
      // TODO: Add -sCANVAS_RESIZE_SETS_GL_VIEWPORT=0/1 option (default=1). This is commonly done and several graphics engines depend on this,
      // but this can be quite disruptive.
      canvas.GLctxObject.GLctx.viewport(0, 0, width, height);
    }
  } else if (canvas.canvasSharedPtr) {
    var targetThread = GROWABLE_HEAP_U32()[(((canvas.canvasSharedPtr) + (8)) >> 2)];
    setOffscreenCanvasSizeOnTargetThread(targetThread, target, width, height);
    return 1;
  } else {
    return -4;
  }
  return 0;
};

function setCanvasElementSizeMainThread(target, width, height) {
  if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(9, 0, 1, target, width, height);
  return setCanvasElementSizeCallingThread(target, width, height);
}

var _emscripten_set_canvas_element_size = (target, width, height) => {
  var canvas = findCanvasEventTarget(target);
  if (canvas) {
    return setCanvasElementSizeCallingThread(target, width, height);
  }
  return setCanvasElementSizeMainThread(target, width, height);
};

class HandleAllocator {
  allocated=[ undefined ];
  freelist=[];
  get(id) {
    assert(this.allocated[id] !== undefined, `invalid handle: ${id}`);
    return this.allocated[id];
  }
  has(id) {
    return this.allocated[id] !== undefined;
  }
  allocate(handle) {
    var id = this.freelist.pop() || this.allocated.length;
    this.allocated[id] = handle;
    return id;
  }
  free(id) {
    assert(this.allocated[id] !== undefined);
    // Set the slot to `undefined` rather than using `delete` here since
    // apparently arrays with holes in them can be less efficient.
    this.allocated[id] = undefined;
    this.freelist.push(id);
  }
}

var Fetch = {
  openDatabase(dbname, dbversion, onsuccess, onerror) {
    try {
      var openRequest = indexedDB.open(dbname, dbversion);
    } catch (e) {
      return onerror(e);
    }
    openRequest.onupgradeneeded = event => {
      var db = /** @type {IDBDatabase} */ (event.target.result);
      if (db.objectStoreNames.contains("FILES")) {
        db.deleteObjectStore("FILES");
      }
      db.createObjectStore("FILES");
    };
    openRequest.onsuccess = event => onsuccess(event.target.result);
    openRequest.onerror = onerror;
  },
  init() {
    Fetch.xhrs = new HandleAllocator;
    if (ENVIRONMENT_IS_PTHREAD) return;
    var onsuccess = db => {
      Fetch.dbInstance = db;
      removeRunDependency("library_fetch_init");
    };
    var onerror = () => {
      Fetch.dbInstance = false;
      removeRunDependency("library_fetch_init");
    };
    addRunDependency("library_fetch_init");
    Fetch.openDatabase("emscripten_filesystem", 1, onsuccess, onerror);
  }
};

function fetchXHR(fetch, onsuccess, onerror, onprogress, onreadystatechange) {
  var url = GROWABLE_HEAP_U32()[(((fetch) + (8)) >> 2)];
  if (!url) {
    onerror(fetch, 0, "no url specified!");
    return;
  }
  var url_ = UTF8ToString(url);
  var fetch_attr = fetch + 108;
  var requestMethod = UTF8ToString(fetch_attr + 0);
  requestMethod ||= "GET";
  var timeoutMsecs = GROWABLE_HEAP_U32()[(((fetch_attr) + (56)) >> 2)];
  var userName = GROWABLE_HEAP_U32()[(((fetch_attr) + (68)) >> 2)];
  var password = GROWABLE_HEAP_U32()[(((fetch_attr) + (72)) >> 2)];
  var requestHeaders = GROWABLE_HEAP_U32()[(((fetch_attr) + (76)) >> 2)];
  var overriddenMimeType = GROWABLE_HEAP_U32()[(((fetch_attr) + (80)) >> 2)];
  var dataPtr = GROWABLE_HEAP_U32()[(((fetch_attr) + (84)) >> 2)];
  var dataLength = GROWABLE_HEAP_U32()[(((fetch_attr) + (88)) >> 2)];
  var fetchAttributes = GROWABLE_HEAP_U32()[(((fetch_attr) + (52)) >> 2)];
  var fetchAttrLoadToMemory = !!(fetchAttributes & 1);
  var fetchAttrStreamData = !!(fetchAttributes & 2);
  var fetchAttrSynchronous = !!(fetchAttributes & 64);
  var userNameStr = userName ? UTF8ToString(userName) : undefined;
  var passwordStr = password ? UTF8ToString(password) : undefined;
  var xhr = new XMLHttpRequest;
  xhr.withCredentials = !!GROWABLE_HEAP_U8()[(fetch_attr) + (60)];
  xhr.open(requestMethod, url_, !fetchAttrSynchronous, userNameStr, passwordStr);
  if (!fetchAttrSynchronous) xhr.timeout = timeoutMsecs;
  // XHR timeout field is only accessible in async XHRs, and must be set after .open() but before .send().
  xhr.url_ = url_;
  // Save the url for debugging purposes (and for comparing to the responseURL that server side advertised)
  assert(!fetchAttrStreamData, "streaming uses moz-chunked-arraybuffer which is no longer supported; TODO: rewrite using fetch()");
  xhr.responseType = "arraybuffer";
  if (overriddenMimeType) {
    var overriddenMimeTypeStr = UTF8ToString(overriddenMimeType);
    xhr.overrideMimeType(overriddenMimeTypeStr);
  }
  if (requestHeaders) {
    for (;;) {
      var key = GROWABLE_HEAP_U32()[((requestHeaders) >> 2)];
      if (!key) break;
      var value = GROWABLE_HEAP_U32()[(((requestHeaders) + (4)) >> 2)];
      if (!value) break;
      requestHeaders += 8;
      var keyStr = UTF8ToString(key);
      var valueStr = UTF8ToString(value);
      xhr.setRequestHeader(keyStr, valueStr);
    }
  }
  var id = Fetch.xhrs.allocate(xhr);
  GROWABLE_HEAP_U32()[((fetch) >> 2)] = id;
  var data = (dataPtr && dataLength) ? GROWABLE_HEAP_U8().slice(dataPtr, dataPtr + dataLength) : null;
  // TODO: Support specifying custom headers to the request.
  // Share the code to save the response, as we need to do so both on success
  // and on error (despite an error, there may be a response, like a 404 page).
  // This receives a condition, which determines whether to save the xhr's
  // response, or just 0.
  function saveResponseAndStatus() {
    var ptr = 0;
    var ptrLen = 0;
    if (xhr.response && fetchAttrLoadToMemory && GROWABLE_HEAP_U32()[(((fetch) + (12)) >> 2)] === 0) {
      ptrLen = xhr.response.byteLength;
    }
    if (ptrLen > 0) {
      // The data pointer malloc()ed here has the same lifetime as the emscripten_fetch_t structure itself has, and is
      // freed when emscripten_fetch_close() is called.
      ptr = _malloc(ptrLen);
      GROWABLE_HEAP_U8().set(new Uint8Array(/** @type{Array<number>} */ (xhr.response)), ptr);
    }
    GROWABLE_HEAP_U32()[(((fetch) + (12)) >> 2)] = ptr;
    writeI53ToI64(fetch + 16, ptrLen);
    writeI53ToI64(fetch + 24, 0);
    var len = xhr.response ? xhr.response.byteLength : 0;
    if (len) {
      // If the final XHR.onload handler receives the bytedata to compute total length, report that,
      // otherwise don't write anything out here, which will retain the latest byte size reported in
      // the most recent XHR.onprogress handler.
      writeI53ToI64(fetch + 32, len);
    }
    GROWABLE_HEAP_I16()[(((fetch) + (40)) >> 1)] = xhr.readyState;
    GROWABLE_HEAP_I16()[(((fetch) + (42)) >> 1)] = xhr.status;
    if (xhr.statusText) stringToUTF8(xhr.statusText, fetch + 44, 64);
  }
  xhr.onload = e => {
    // check if xhr was aborted by user and don't try to call back
    if (!Fetch.xhrs.has(id)) {
      return;
    }
    saveResponseAndStatus();
    if (xhr.status >= 200 && xhr.status < 300) {
      onsuccess?.(fetch, xhr, e);
    } else {
      onerror?.(fetch, xhr, e);
    }
  };
  xhr.onerror = e => {
    // check if xhr was aborted by user and don't try to call back
    if (!Fetch.xhrs.has(id)) {
      return;
    }
    saveResponseAndStatus();
    onerror?.(fetch, xhr, e);
  };
  xhr.ontimeout = e => {
    // check if xhr was aborted by user and don't try to call back
    if (!Fetch.xhrs.has(id)) {
      return;
    }
    onerror?.(fetch, xhr, e);
  };
  xhr.onprogress = e => {
    // check if xhr was aborted by user and don't try to call back
    if (!Fetch.xhrs.has(id)) {
      return;
    }
    var ptrLen = (fetchAttrLoadToMemory && fetchAttrStreamData && xhr.response) ? xhr.response.byteLength : 0;
    var ptr = 0;
    if (ptrLen > 0 && fetchAttrLoadToMemory && fetchAttrStreamData) {
      assert(onprogress, "When doing a streaming fetch, you should have an onprogress handler registered to receive the chunks!");
      // Allocate byte data in Emscripten heap for the streamed memory block (freed immediately after onprogress call)
      ptr = _malloc(ptrLen);
      GROWABLE_HEAP_U8().set(new Uint8Array(/** @type{Array<number>} */ (xhr.response)), ptr);
    }
    GROWABLE_HEAP_U32()[(((fetch) + (12)) >> 2)] = ptr;
    writeI53ToI64(fetch + 16, ptrLen);
    writeI53ToI64(fetch + 24, e.loaded - ptrLen);
    writeI53ToI64(fetch + 32, e.total);
    GROWABLE_HEAP_I16()[(((fetch) + (40)) >> 1)] = xhr.readyState;
    // If loading files from a source that does not give HTTP status code, assume success if we get data bytes
    if (xhr.readyState >= 3 && xhr.status === 0 && e.loaded > 0) xhr.status = 200;
    GROWABLE_HEAP_I16()[(((fetch) + (42)) >> 1)] = xhr.status;
    if (xhr.statusText) stringToUTF8(xhr.statusText, fetch + 44, 64);
    onprogress?.(fetch, xhr, e);
    if (ptr) {
      _free(ptr);
    }
  };
  xhr.onreadystatechange = e => {
    // check if xhr was aborted by user and don't try to call back
    if (!Fetch.xhrs.has(id)) {
      runtimeKeepalivePop();
      return;
    }
    GROWABLE_HEAP_I16()[(((fetch) + (40)) >> 1)] = xhr.readyState;
    if (xhr.readyState >= 2) {
      GROWABLE_HEAP_I16()[(((fetch) + (42)) >> 1)] = xhr.status;
    }
    onreadystatechange?.(fetch, xhr, e);
  };
  try {
    xhr.send(data);
  } catch (e) {
    onerror?.(fetch, xhr, e);
  }
}

var readI53FromI64 = ptr => GROWABLE_HEAP_U32()[((ptr) >> 2)] + GROWABLE_HEAP_I32()[(((ptr) + (4)) >> 2)] * 4294967296;

var readI53FromU64 = ptr => GROWABLE_HEAP_U32()[((ptr) >> 2)] + GROWABLE_HEAP_U32()[(((ptr) + (4)) >> 2)] * 4294967296;

var writeI53ToI64 = (ptr, num) => {
  GROWABLE_HEAP_U32()[((ptr) >> 2)] = num;
  var lower = GROWABLE_HEAP_U32()[((ptr) >> 2)];
  GROWABLE_HEAP_U32()[(((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(GROWABLE_HEAP_U32()[offset])}, hi=${ptrToString(GROWABLE_HEAP_U32()[offset + 1])}, which deserializes back to ${deserialized} instead!`);
};

function fetchCacheData(/** @type {IDBDatabase} */ db, fetch, data, onsuccess, onerror) {
  if (!db) {
    onerror(fetch, 0, "IndexedDB not available!");
    return;
  }
  var fetch_attr = fetch + 108;
  var destinationPath = GROWABLE_HEAP_U32()[(((fetch_attr) + (64)) >> 2)];
  destinationPath ||= GROWABLE_HEAP_U32()[(((fetch) + (8)) >> 2)];
  var destinationPathStr = UTF8ToString(destinationPath);
  try {
    var transaction = db.transaction([ "FILES" ], "readwrite");
    var packages = transaction.objectStore("FILES");
    var putRequest = packages.put(data, destinationPathStr);
    putRequest.onsuccess = event => {
      GROWABLE_HEAP_I16()[(((fetch) + (40)) >> 1)] = 4;
      // Mimic XHR readyState 4 === 'DONE: The operation is complete'
      GROWABLE_HEAP_I16()[(((fetch) + (42)) >> 1)] = 200;
      // Mimic XHR HTTP status code 200 "OK"
      stringToUTF8("OK", fetch + 44, 64);
      onsuccess(fetch, 0, destinationPathStr);
    };
    putRequest.onerror = error => {
      // Most likely we got an error if IndexedDB is unwilling to store any more data for this page.
      // TODO: Can we identify and break down different IndexedDB-provided errors and convert those
      // to more HTTP status codes for more information?
      GROWABLE_HEAP_I16()[(((fetch) + (40)) >> 1)] = 4;
      // Mimic XHR readyState 4 === 'DONE: The operation is complete'
      GROWABLE_HEAP_I16()[(((fetch) + (42)) >> 1)] = 413;
      // Mimic XHR HTTP status code 413 "Payload Too Large"
      stringToUTF8("Payload Too Large", fetch + 44, 64);
      onerror(fetch, 0, error);
    };
  } catch (e) {
    onerror(fetch, 0, e);
  }
}

function fetchLoadCachedData(db, fetch, onsuccess, onerror) {
  if (!db) {
    onerror(fetch, 0, "IndexedDB not available!");
    return;
  }
  var fetch_attr = fetch + 108;
  var path = GROWABLE_HEAP_U32()[(((fetch_attr) + (64)) >> 2)];
  path ||= GROWABLE_HEAP_U32()[(((fetch) + (8)) >> 2)];
  var pathStr = UTF8ToString(path);
  try {
    var transaction = db.transaction([ "FILES" ], "readonly");
    var packages = transaction.objectStore("FILES");
    var getRequest = packages.get(pathStr);
    getRequest.onsuccess = event => {
      if (event.target.result) {
        var value = event.target.result;
        var len = value.byteLength || value.length;
        // The data pointer malloc()ed here has the same lifetime as the emscripten_fetch_t structure itself has, and is
        // freed when emscripten_fetch_close() is called.
        var ptr = _malloc(len);
        GROWABLE_HEAP_U8().set(new Uint8Array(value), ptr);
        GROWABLE_HEAP_U32()[(((fetch) + (12)) >> 2)] = ptr;
        writeI53ToI64(fetch + 16, len);
        writeI53ToI64(fetch + 24, 0);
        writeI53ToI64(fetch + 32, len);
        GROWABLE_HEAP_I16()[(((fetch) + (40)) >> 1)] = 4;
        // Mimic XHR readyState 4 === 'DONE: The operation is complete'
        GROWABLE_HEAP_I16()[(((fetch) + (42)) >> 1)] = 200;
        // Mimic XHR HTTP status code 200 "OK"
        stringToUTF8("OK", fetch + 44, 64);
        onsuccess(fetch, 0, value);
      } else {
        // Succeeded to load, but the load came back with the value of undefined, treat that as an error since we never store undefined in db.
        GROWABLE_HEAP_I16()[(((fetch) + (40)) >> 1)] = 4;
        // Mimic XHR readyState 4 === 'DONE: The operation is complete'
        GROWABLE_HEAP_I16()[(((fetch) + (42)) >> 1)] = 404;
        // Mimic XHR HTTP status code 404 "Not Found"
        stringToUTF8("Not Found", fetch + 44, 64);
        onerror(fetch, 0, "no data");
      }
    };
    getRequest.onerror = error => {
      GROWABLE_HEAP_I16()[(((fetch) + (40)) >> 1)] = 4;
      // Mimic XHR readyState 4 === 'DONE: The operation is complete'
      GROWABLE_HEAP_I16()[(((fetch) + (42)) >> 1)] = 404;
      // Mimic XHR HTTP status code 404 "Not Found"
      stringToUTF8("Not Found", fetch + 44, 64);
      onerror(fetch, 0, error);
    };
  } catch (e) {
    onerror(fetch, 0, e);
  }
}

function fetchDeleteCachedData(db, fetch, onsuccess, onerror) {
  if (!db) {
    onerror(fetch, 0, "IndexedDB not available!");
    return;
  }
  var fetch_attr = fetch + 108;
  var path = GROWABLE_HEAP_U32()[(((fetch_attr) + (64)) >> 2)];
  path ||= GROWABLE_HEAP_U32()[(((fetch) + (8)) >> 2)];
  var pathStr = UTF8ToString(path);
  try {
    var transaction = db.transaction([ "FILES" ], "readwrite");
    var packages = transaction.objectStore("FILES");
    var request = packages.delete(pathStr);
    request.onsuccess = event => {
      var value = event.target.result;
      GROWABLE_HEAP_U32()[(((fetch) + (12)) >> 2)] = 0;
      writeI53ToI64(fetch + 16, 0);
      writeI53ToI64(fetch + 24, 0);
      writeI53ToI64(fetch + 32, 0);
      // Mimic XHR readyState 4 === 'DONE: The operation is complete'
      GROWABLE_HEAP_I16()[(((fetch) + (40)) >> 1)] = 4;
      // Mimic XHR HTTP status code 200 "OK"
      GROWABLE_HEAP_I16()[(((fetch) + (42)) >> 1)] = 200;
      stringToUTF8("OK", fetch + 44, 64);
      onsuccess(fetch, 0, value);
    };
    request.onerror = error => {
      GROWABLE_HEAP_I16()[(((fetch) + (40)) >> 1)] = 4;
      // Mimic XHR readyState 4 === 'DONE: The operation is complete'
      GROWABLE_HEAP_I16()[(((fetch) + (42)) >> 1)] = 404;
      // Mimic XHR HTTP status code 404 "Not Found"
      stringToUTF8("Not Found", fetch + 44, 64);
      onerror(fetch, 0, error);
    };
  } catch (e) {
    onerror(fetch, 0, e);
  }
}

function _emscripten_start_fetch(fetch, successcb, errorcb, progresscb, readystatechangecb) {
  // Avoid shutting down the runtime since we want to wait for the async
  // response.
  runtimeKeepalivePush();
  var fetch_attr = fetch + 108;
  var onsuccess = GROWABLE_HEAP_U32()[(((fetch_attr) + (36)) >> 2)];
  var onerror = GROWABLE_HEAP_U32()[(((fetch_attr) + (40)) >> 2)];
  var onprogress = GROWABLE_HEAP_U32()[(((fetch_attr) + (44)) >> 2)];
  var onreadystatechange = GROWABLE_HEAP_U32()[(((fetch_attr) + (48)) >> 2)];
  var fetchAttributes = GROWABLE_HEAP_U32()[(((fetch_attr) + (52)) >> 2)];
  var fetchAttrSynchronous = !!(fetchAttributes & 64);
  function doCallback(f) {
    if (fetchAttrSynchronous) {
      f();
    } else {
      callUserCallback(f);
    }
  }
  var reportSuccess = (fetch, xhr, e) => {
    runtimeKeepalivePop();
    doCallback(() => {
      if (onsuccess) (a1 => dynCall_vi(onsuccess, a1))(fetch); else successcb?.(fetch);
    });
  };
  var reportProgress = (fetch, xhr, e) => {
    doCallback(() => {
      if (onprogress) (a1 => dynCall_vi(onprogress, a1))(fetch); else progresscb?.(fetch);
    });
  };
  var reportError = (fetch, xhr, e) => {
    runtimeKeepalivePop();
    doCallback(() => {
      if (onerror) (a1 => dynCall_vi(onerror, a1))(fetch); else errorcb?.(fetch);
    });
  };
  var reportReadyStateChange = (fetch, xhr, e) => {
    doCallback(() => {
      if (onreadystatechange) (a1 => dynCall_vi(onreadystatechange, a1))(fetch); else readystatechangecb?.(fetch);
    });
  };
  var performUncachedXhr = (fetch, xhr, e) => {
    fetchXHR(fetch, reportSuccess, reportError, reportProgress, reportReadyStateChange);
  };
  var cacheResultAndReportSuccess = (fetch, xhr, e) => {
    var storeSuccess = (fetch, xhr, e) => {
      runtimeKeepalivePop();
      doCallback(() => {
        if (onsuccess) (a1 => dynCall_vi(onsuccess, a1))(fetch); else successcb?.(fetch);
      });
    };
    var storeError = (fetch, xhr, e) => {
      runtimeKeepalivePop();
      doCallback(() => {
        if (onsuccess) (a1 => dynCall_vi(onsuccess, a1))(fetch); else successcb?.(fetch);
      });
    };
    fetchCacheData(Fetch.dbInstance, fetch, xhr.response, storeSuccess, storeError);
  };
  var performCachedXhr = (fetch, xhr, e) => {
    fetchXHR(fetch, cacheResultAndReportSuccess, reportError, reportProgress, reportReadyStateChange);
  };
  var requestMethod = UTF8ToString(fetch_attr + 0);
  var fetchAttrReplace = !!(fetchAttributes & 16);
  var fetchAttrPersistFile = !!(fetchAttributes & 4);
  var fetchAttrNoDownload = !!(fetchAttributes & 32);
  if (requestMethod === "EM_IDB_STORE") {
    // TODO(?): Here we perform a clone of the data, because storing shared typed arrays to IndexedDB does not seem to be allowed.
    var ptr = GROWABLE_HEAP_U32()[(((fetch_attr) + (84)) >> 2)];
    var size = GROWABLE_HEAP_U32()[(((fetch_attr) + (88)) >> 2)];
    fetchCacheData(Fetch.dbInstance, fetch, GROWABLE_HEAP_U8().slice(ptr, ptr + size), reportSuccess, reportError);
  } else if (requestMethod === "EM_IDB_DELETE") {
    fetchDeleteCachedData(Fetch.dbInstance, fetch, reportSuccess, reportError);
  } else if (!fetchAttrReplace) {
    fetchLoadCachedData(Fetch.dbInstance, fetch, reportSuccess, fetchAttrNoDownload ? reportError : (fetchAttrPersistFile ? performCachedXhr : performUncachedXhr));
  } else if (!fetchAttrNoDownload) {
    fetchXHR(fetch, fetchAttrPersistFile ? cacheResultAndReportSuccess : reportSuccess, reportError, reportProgress, reportReadyStateChange);
  } else {
    return 0;
  }
  return fetch;
}

var registerPreMainLoop = f => {
  // Does nothing unless $MainLoop is included/used.
  typeof MainLoop != "undefined" && MainLoop.preMainLoop.push(f);
};

var _emscripten_supports_offscreencanvas = () => // TODO: Add a new build mode, e.g. OFFSCREENCANVAS_SUPPORT=2, which
// necessitates OffscreenCanvas support at build time, and "return 1;" here in that build mode.
typeof OffscreenCanvas != "undefined";

var webglPowerPreferences = [ "default", "low-power", "high-performance" ];

/** @suppress {duplicate } */ var _emscripten_webgl_do_create_context = (target, attributes) => {
  assert(attributes);
  var attr32 = ((attributes) >> 2);
  var powerPreference = GROWABLE_HEAP_I32()[attr32 + (8 >> 2)];
  var contextAttributes = {
    "alpha": !!GROWABLE_HEAP_I8()[attributes + 0],
    "depth": !!GROWABLE_HEAP_I8()[attributes + 1],
    "stencil": !!GROWABLE_HEAP_I8()[attributes + 2],
    "antialias": !!GROWABLE_HEAP_I8()[attributes + 3],
    "premultipliedAlpha": !!GROWABLE_HEAP_I8()[attributes + 4],
    "preserveDrawingBuffer": !!GROWABLE_HEAP_I8()[attributes + 5],
    "powerPreference": webglPowerPreferences[powerPreference],
    "failIfMajorPerformanceCaveat": !!GROWABLE_HEAP_I8()[attributes + 12],
    // The following are not predefined WebGL context attributes in the WebGL specification, so the property names can be minified by Closure.
    majorVersion: GROWABLE_HEAP_I32()[attr32 + (16 >> 2)],
    minorVersion: GROWABLE_HEAP_I32()[attr32 + (20 >> 2)],
    enableExtensionsByDefault: GROWABLE_HEAP_I8()[attributes + 24],
    explicitSwapControl: GROWABLE_HEAP_I8()[attributes + 25],
    proxyContextToMainThread: GROWABLE_HEAP_I32()[attr32 + (28 >> 2)],
    renderViaOffscreenBackBuffer: GROWABLE_HEAP_I8()[attributes + 32]
  };
  //  TODO: Make these into hard errors at some point in the future
  if (contextAttributes.majorVersion !== 1 && contextAttributes.majorVersion !== 2) {
    err(`Invalid WebGL version requested: ${contextAttributes.majorVersion}`);
  }
  var canvas = findCanvasEventTarget(target);
  // If our canvas from findCanvasEventTarget is actually an offscreen canvas record, we should extract the inner canvas.
  if (canvas?.canvas) {
    canvas = canvas.canvas;
  }
  if (!canvas) {
    return 0;
  }
  if (canvas.offscreenCanvas) canvas = canvas.offscreenCanvas;
  if (contextAttributes.explicitSwapControl) {
    var supportsOffscreenCanvas = canvas.transferControlToOffscreen || (_emscripten_supports_offscreencanvas() && canvas instanceof OffscreenCanvas);
    if (!supportsOffscreenCanvas) {
      return 0;
    }
    if (canvas.transferControlToOffscreen) {
      if (!canvas.controlTransferredOffscreen) {
        GL.offscreenCanvases[canvas.id] = {
          canvas: canvas.transferControlToOffscreen(),
          canvasSharedPtr: _malloc(12),
          id: canvas.id
        };
        canvas.controlTransferredOffscreen = true;
      } else if (!GL.offscreenCanvases[canvas.id]) {
        return 0;
      }
      canvas = GL.offscreenCanvases[canvas.id].canvas;
    }
  }
  var contextHandle = GL.createContext(canvas, contextAttributes);
  return contextHandle;
};

var _emscripten_webgl_create_context = _emscripten_webgl_do_create_context;

var _emscripten_webgl_destroy_context_calling_thread = contextHandle => {
  if (GL.currentContext == contextHandle) GL.currentContext = 0;
  GL.deleteContext(contextHandle);
};

var _emscripten_webgl_destroy_context_main_thread = _emscripten_webgl_destroy_context_calling_thread;

function _emscripten_webgl_destroy_context(p0) {
  return GL.contexts[p0] ? _emscripten_webgl_destroy_context_calling_thread(p0) : _emscripten_webgl_destroy_context_main_thread(p0);
}

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

var ENV = {};

var getExecutableName = () => thisProgram || "./this.program";

var getEnvStrings = () => {
  if (!getEnvStrings.strings) {
    // Default values.
    // Browser language detection #8751
    var lang = ((typeof navigator == "object" && navigator.languages && navigator.languages[0]) || "C").replace("-", "_") + ".UTF-8";
    var env = {
      "USER": "web_user",
      "LOGNAME": "web_user",
      "PATH": "/",
      "PWD": "/",
      "HOME": "/home/web_user",
      "LANG": lang,
      "_": getExecutableName()
    };
    // Apply the user-provided values, if any.
    for (var x in ENV) {
      // x is a key in ENV; if ENV[x] is undefined, that means it was
      // explicitly set to be so. We allow user code to do that to
      // force variables with default values to remain unset.
      if (ENV[x] === undefined) delete env[x]; else env[x] = ENV[x];
    }
    var strings = [];
    for (var x in env) {
      strings.push(`${x}=${env[x]}`);
    }
    getEnvStrings.strings = strings;
  }
  return getEnvStrings.strings;
};

var stringToAscii = (str, buffer) => {
  for (var i = 0; i < str.length; ++i) {
    assert(str.charCodeAt(i) === (str.charCodeAt(i) & 255));
    GROWABLE_HEAP_I8()[buffer++] = str.charCodeAt(i);
  }
  // Null-terminate the string
  GROWABLE_HEAP_I8()[buffer] = 0;
};

var _environ_get = function(__environ, environ_buf) {
  if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(10, 0, 1, __environ, environ_buf);
  var bufSize = 0;
  getEnvStrings().forEach((string, i) => {
    var ptr = environ_buf + bufSize;
    GROWABLE_HEAP_U32()[(((__environ) + (i * 4)) >> 2)] = ptr;
    stringToAscii(string, ptr);
    bufSize += string.length + 1;
  });
  return 0;
};

var _environ_sizes_get = function(penviron_count, penviron_buf_size) {
  if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(11, 0, 1, penviron_count, penviron_buf_size);
  var strings = getEnvStrings();
  GROWABLE_HEAP_U32()[((penviron_count) >> 2)] = strings.length;
  var bufSize = 0;
  strings.forEach(string => bufSize += string.length + 1);
  GROWABLE_HEAP_U32()[((penviron_buf_size) >> 2)] = bufSize;
  return 0;
};

function _fd_close(fd) {
  if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(12, 0, 1, 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;
  }
}

function _fd_fdstat_get(fd, pbuf) {
  if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(13, 0, 1, fd, pbuf);
  try {
    var rightsBase = 0;
    var rightsInheriting = 0;
    var flags = 0;
    {
      var stream = SYSCALLS.getStreamFromFD(fd);
      // All character devices are terminals (other things a Linux system would
      // assume is a character device, like the mouse, we have special APIs for).
      var type = stream.tty ? 2 : FS.isDir(stream.mode) ? 3 : FS.isLink(stream.mode) ? 7 : 4;
    }
    GROWABLE_HEAP_I8()[pbuf] = type;
    GROWABLE_HEAP_I16()[(((pbuf) + (2)) >> 1)] = flags;
    HEAP64[(((pbuf) + (8)) >> 3)] = BigInt(rightsBase);
    HEAP64[(((pbuf) + (16)) >> 3)] = BigInt(rightsInheriting);
    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 = GROWABLE_HEAP_U32()[((iov) >> 2)];
    var len = GROWABLE_HEAP_U32()[(((iov) + (4)) >> 2)];
    iov += 8;
    var curr = FS.read(stream, GROWABLE_HEAP_I8(), 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) {
  if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(14, 0, 1, fd, iov, iovcnt, pnum);
  try {
    var stream = SYSCALLS.getStreamFromFD(fd);
    var num = doReadv(stream, iov, iovcnt);
    GROWABLE_HEAP_U32()[((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) {
  if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(15, 0, 1, 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 = GROWABLE_HEAP_U32()[((iov) >> 2)];
    var len = GROWABLE_HEAP_U32()[(((iov) + (4)) >> 2)];
    iov += 8;
    var curr = FS.write(stream, GROWABLE_HEAP_I8(), 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) {
  if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(16, 0, 1, fd, iov, iovcnt, pnum);
  try {
    var stream = SYSCALLS.getStreamFromFD(fd);
    var num = doWritev(stream, iov, iovcnt);
    GROWABLE_HEAP_U32()[((pnum) >> 2)] = num;
    return 0;
  } catch (e) {
    if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
    return e.errno;
  }
}

var _glActiveTexture = x0 => GLctx.activeTexture(x0);

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

var _glBindBuffer = (target, buffer) => {
  if (target == 35051) {
    // In WebGL 2 glReadPixels entry point, we need to use a different WebGL 2
    // API function call when a buffer is bound to
    // GL_PIXEL_PACK_BUFFER_BINDING point, so must keep track whether that
    // binding point is non-null to know what is the proper API function to
    // call.
    GLctx.currentPixelPackBufferBinding = buffer;
  } else if (target == 35052) {
    // In WebGL 2 gl(Compressed)Tex(Sub)Image[23]D entry points, we need to
    // use a different WebGL 2 API function call when a buffer is bound to
    // GL_PIXEL_UNPACK_BUFFER_BINDING point, so must keep track whether that
    // binding point is non-null to know what is the proper API function to
    // call.
    GLctx.currentPixelUnpackBufferBinding = buffer;
  }
  GLctx.bindBuffer(target, GL.buffers[buffer]);
};

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

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

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

var _glBufferData = (target, size, data, usage) => {
  if (GL.currentContext.version >= 2) {
    // If size is zero, WebGL would interpret uploading the whole input
    // arraybuffer (starting from given offset), which would not make sense in
    // WebAssembly, so avoid uploading if size is zero. However we must still
    // call bufferData to establish a backing storage of zero bytes.
    if (data && size) {
      GLctx.bufferData(target, GROWABLE_HEAP_U8(), usage, data, size);
    } else {
      GLctx.bufferData(target, size, usage);
    }
    return;
  }
  // 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 ? GROWABLE_HEAP_U8().subarray(data, data + size) : size, usage);
};

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

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

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

var _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 _glCreateShader = shaderType => {
  var id = GL.getNewId(GL.shaders);
  GL.shaders[id] = GLctx.createShader(shaderType);
  return id;
};

var _glDeleteFramebuffers = (n, framebuffers) => {
  for (var i = 0; i < n; ++i) {
    var id = GROWABLE_HEAP_I32()[(((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 _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(1281);
    return;
  }
  GLctx.deleteProgram(program);
  program.name = 0;
  GL.programs[id] = null;
};

var _glDeleteTextures = (n, textures) => {
  for (var i = 0; i < n; i++) {
    var id = GROWABLE_HEAP_I32()[(((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 _glDepthFunc = x0 => GLctx.depthFunc(x0);

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

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

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

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

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

var _glGenBuffers = (n, buffers) => {
  GL.genObject(n, buffers, "createBuffer", GL.buffers);
};

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

var _glGenTextures = (n, textures) => {
  GL.genObject(n, textures, "createTexture", GL.textures);
};

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

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

var _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(1281);
    return;
  }
  if (program >= GL.counter) {
    GL.recordError(1281);
    return;
  }
  program = GL.programs[program];
  if (pname == 35716) {
    // GL_INFO_LOG_LENGTH
    var log = GLctx.getProgramInfoLog(program);
    if (log === null) log = "(unknown error)";
    GROWABLE_HEAP_I32()[((p) >> 2)] = log.length + 1;
  } else if (pname == 35719) {
    if (!program.maxUniformLength) {
      var numActiveUniforms = GLctx.getProgramParameter(program, 35718);
      for (var i = 0; i < numActiveUniforms; ++i) {
        program.maxUniformLength = Math.max(program.maxUniformLength, GLctx.getActiveUniform(program, i).name.length + 1);
      }
    }
    GROWABLE_HEAP_I32()[((p) >> 2)] = program.maxUniformLength;
  } else if (pname == 35722) {
    if (!program.maxAttributeLength) {
      var numActiveAttributes = GLctx.getProgramParameter(program, 35721);
      for (var i = 0; i < numActiveAttributes; ++i) {
        program.maxAttributeLength = Math.max(program.maxAttributeLength, GLctx.getActiveAttrib(program, i).name.length + 1);
      }
    }
    GROWABLE_HEAP_I32()[((p) >> 2)] = program.maxAttributeLength;
  } else if (pname == 35381) {
    if (!program.maxUniformBlockNameLength) {
      var numActiveUniformBlocks = GLctx.getProgramParameter(program, 35382);
      for (var i = 0; i < numActiveUniformBlocks; ++i) {
        program.maxUniformBlockNameLength = Math.max(program.maxUniformBlockNameLength, GLctx.getActiveUniformBlockName(program, i).length + 1);
      }
    }
    GROWABLE_HEAP_I32()[((p) >> 2)] = program.maxUniformBlockNameLength;
  } else {
    GROWABLE_HEAP_I32()[((p) >> 2)] = GLctx.getProgramParameter(program, pname);
  }
};

var _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) GROWABLE_HEAP_I32()[((length) >> 2)] = numBytesWrittenExclNull;
};

var _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(1281);
    return;
  }
  if (pname == 35716) {
    // 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;
    GROWABLE_HEAP_I32()[((p) >> 2)] = logLength;
  } else if (pname == 35720) {
    // 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;
    GROWABLE_HEAP_I32()[((p) >> 2)] = sourceLength;
  } else {
    GROWABLE_HEAP_I32()[((p) >> 2)] = GLctx.getShaderParameter(GL.shaders[shader], 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, 35718);
    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 _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 an uniform with this name exists, and if its index is within the
    // array limits (if it's even an array), query the WebGLlocation, or
    // return an existing cached location.
    if (sizeAndId && arrayIndex < sizeAndId[0]) {
      arrayIndex += sizeAndId[1];
      // Add the base location of the uniform to the array index offset.
      if ((uniformLocsById[arrayIndex] = uniformLocsById[arrayIndex] || GLctx.getUniformLocation(program, name))) {
        return arrayIndex;
      }
    }
  } else {
    // N.b. we are currently unable to distinguish between GL program IDs that
    // never existed vs GL program IDs that have been deleted, so report
    // GL_INVALID_VALUE in both cases.
    GL.recordError(1281);
  }
  return -1;
};

var _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 _glShaderSource = (shader, count, string, length) => {
  var source = GL.getSource(shader, count, string, length);
  GLctx.shaderSource(GL.shaders[shader], source);
};

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,
    // 0x1903 /* GL_RED */ - 0x1902: 1,
    26917: 2,
    26918: 2,
    // 0x8D94 /* GL_RED_INTEGER */ - 0x1902: 1,
    29846: 3,
    29847: 4
  };
  return colorChannels[format - 6402] || 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 -= 5120;
  if (type == 0) return GROWABLE_HEAP_I8();
  if (type == 1) return GROWABLE_HEAP_U8();
  if (type == 2) return GROWABLE_HEAP_I16();
  if (type == 4) return GROWABLE_HEAP_I32();
  if (type == 6) return GROWABLE_HEAP_F32();
  if (type == 5 || type == 28922 || type == 28520 || type == 30779 || type == 30782) return GROWABLE_HEAP_U32();
  return GROWABLE_HEAP_U16();
};

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 _glTexImage2D = (target, level, internalFormat, width, height, border, format, type, pixels) => {
  if (GL.currentContext.version >= 2) {
    if (GLctx.currentPixelUnpackBufferBinding) {
      GLctx.texImage2D(target, level, internalFormat, width, height, border, format, type, pixels);
      return;
    }
    if (pixels) {
      var heap = heapObjectForWebGLType(type);
      var index = toTypedArrayIndex(pixels, heap);
      GLctx.texImage2D(target, level, internalFormat, width, height, border, format, type, heap, index);
      return;
    }
  }
  var pixelData = pixels ? emscriptenWebGLGetTexPixelData(type, format, width, height, pixels, internalFormat) : null;
  GLctx.texImage2D(target, level, internalFormat, width, height, border, format, type, pixelData);
};

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

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

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(1282);
  }
};

var _glUniform1i = (location, v0) => {
  GLctx.uniform1i(webglGetUniformLocation(location), v0);
};

var miniTempWebGLFloatBuffers = [];

var _glUniformMatrix4fv = (location, count, transpose, value) => {
  if (GL.currentContext.version >= 2) {
    count && GLctx.uniformMatrix4fv(webglGetUniformLocation(location), !!transpose, GROWABLE_HEAP_F32(), ((value) >> 2), count * 16);
    return;
  }
  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 = GROWABLE_HEAP_F32();
    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 = GROWABLE_HEAP_F32().subarray((((value) >> 2)), ((value + count * 64) >> 2));
  }
  GLctx.uniformMatrix4fv(webglGetUniformLocation(location), !!transpose, view);
};

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

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

var wasmTableMirror = [];

/** @type {WebAssembly.Table} */ var wasmTable;

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 runAndAbortIfError = func => {
  try {
    return func();
  } catch (e) {
    abort(e);
  }
};

var sigToWasmTypes = sig => {
  var typeNames = {
    "i": "i32",
    "j": "i64",
    "f": "f32",
    "d": "f64",
    "e": "externref",
    "p": "i32"
  };
  var type = {
    parameters: [],
    results: sig[0] == "v" ? [] : [ typeNames[sig[0]] ]
  };
  for (var i = 1; i < sig.length; ++i) {
    assert(sig[i] in typeNames, "invalid signature char: " + sig[i]);
    type.parameters.push(typeNames[sig[i]]);
  }
  return type;
};

var Asyncify = {
  instrumentWasmImports(imports) {
    var importPattern = /^(invoke_.*|__asyncjs__.*)$/;
    for (let [x, original] of Object.entries(imports)) {
      if (typeof original == "function") {
        let isAsyncifyImport = original.isAsync || importPattern.test(x);
        imports[x] = (...args) => {
          var originalAsyncifyState = Asyncify.state;
          try {
            return original(...args);
          } finally {
            // Only asyncify-declared imports are allowed to change the
            // state.
            // Changing the state from normal to disabled is allowed (in any
            // function) as that is what shutdown does (and we don't have an
            // explicit list of shutdown imports).
            var changedToDisabled = originalAsyncifyState === Asyncify.State.Normal && Asyncify.state === Asyncify.State.Disabled;
            // invoke_* functions are allowed to change the state if we do
            // not ignore indirect calls.
            var ignoredInvoke = x.startsWith("invoke_") && true;
            if (Asyncify.state !== originalAsyncifyState && !isAsyncifyImport && !changedToDisabled && !ignoredInvoke) {
              throw new Error(`import ${x} was not in ASYNCIFY_IMPORTS, but changed the state`);
            }
          }
        };
      }
    }
  },
  instrumentWasmExports(exports) {
    var ret = {};
    for (let [x, original] of Object.entries(exports)) {
      if (typeof original == "function") {
        ret[x] = (...args) => {
          Asyncify.exportCallStack.push(x);
          try {
            return original(...args);
          } finally {
            if (!ABORT) {
              var y = Asyncify.exportCallStack.pop();
              assert(y === x);
              Asyncify.maybeStopUnwind();
            }
          }
        };
      } else {
        ret[x] = original;
      }
    }
    return ret;
  },
  State: {
    Normal: 0,
    Unwinding: 1,
    Rewinding: 2,
    Disabled: 3
  },
  state: 0,
  StackSize: 4096,
  currData: null,
  handleSleepReturnValue: 0,
  exportCallStack: [],
  callStackNameToId: {},
  callStackIdToName: {},
  callStackId: 0,
  asyncPromiseHandlers: null,
  sleepCallbacks: [],
  getCallStackId(funcName) {
    var id = Asyncify.callStackNameToId[funcName];
    if (id === undefined) {
      id = Asyncify.callStackId++;
      Asyncify.callStackNameToId[funcName] = id;
      Asyncify.callStackIdToName[id] = funcName;
    }
    return id;
  },
  maybeStopUnwind() {
    if (Asyncify.currData && Asyncify.state === Asyncify.State.Unwinding && Asyncify.exportCallStack.length === 0) {
      // We just finished unwinding.
      // Be sure to set the state before calling any other functions to avoid
      // possible infinite recursion here (For example in debug pthread builds
      // the dbg() function itself can call back into WebAssembly to get the
      // current pthread_self() pointer).
      Asyncify.state = Asyncify.State.Normal;
      runtimeKeepalivePush();
      // Keep the runtime alive so that a re-wind can be done later.
      runAndAbortIfError(_asyncify_stop_unwind);
      if (typeof Fibers != "undefined") {
        Fibers.trampoline();
      }
    }
  },
  whenDone() {
    assert(Asyncify.currData, "Tried to wait for an async operation when none is in progress.");
    assert(!Asyncify.asyncPromiseHandlers, "Cannot have multiple async operations in flight at once");
    return new Promise((resolve, reject) => {
      Asyncify.asyncPromiseHandlers = {
        resolve,
        reject
      };
    });
  },
  allocateData() {
    // An asyncify data structure has three fields:
    //  0  current stack pos
    //  4  max stack pos
    //  8  id of function at bottom of the call stack (callStackIdToName[id] == name of js function)
    // The Asyncify ABI only interprets the first two fields, the rest is for the runtime.
    // We also embed a stack in the same memory region here, right next to the structure.
    // This struct is also defined as asyncify_data_t in emscripten/fiber.h
    var ptr = _malloc(12 + Asyncify.StackSize);
    Asyncify.setDataHeader(ptr, ptr + 12, Asyncify.StackSize);
    Asyncify.setDataRewindFunc(ptr);
    return ptr;
  },
  setDataHeader(ptr, stack, stackSize) {
    GROWABLE_HEAP_U32()[((ptr) >> 2)] = stack;
    GROWABLE_HEAP_U32()[(((ptr) + (4)) >> 2)] = stack + stackSize;
  },
  setDataRewindFunc(ptr) {
    var bottomOfCallStack = Asyncify.exportCallStack[0];
    var rewindId = Asyncify.getCallStackId(bottomOfCallStack);
    GROWABLE_HEAP_I32()[(((ptr) + (8)) >> 2)] = rewindId;
  },
  getDataRewindFuncName(ptr) {
    var id = GROWABLE_HEAP_I32()[(((ptr) + (8)) >> 2)];
    var name = Asyncify.callStackIdToName[id];
    return name;
  },
  getDataRewindFunc(name) {
    var func = wasmExports[name];
    return func;
  },
  doRewind(ptr) {
    var name = Asyncify.getDataRewindFuncName(ptr);
    var func = Asyncify.getDataRewindFunc(name);
    // Once we have rewound and the stack we no longer need to artificially
    // keep the runtime alive.
    runtimeKeepalivePop();
    return func();
  },
  handleSleep(startAsync) {
    assert(Asyncify.state !== Asyncify.State.Disabled, "Asyncify cannot be done during or after the runtime exits");
    if (ABORT) return;
    if (Asyncify.state === Asyncify.State.Normal) {
      // Prepare to sleep. Call startAsync, and see what happens:
      // if the code decided to call our callback synchronously,
      // then no async operation was in fact begun, and we don't
      // need to do anything.
      var reachedCallback = false;
      var reachedAfterCallback = false;
      startAsync((handleSleepReturnValue = 0) => {
        assert(!handleSleepReturnValue || typeof handleSleepReturnValue == "number" || typeof handleSleepReturnValue == "boolean");
        // old emterpretify API supported other stuff
        if (ABORT) return;
        Asyncify.handleSleepReturnValue = handleSleepReturnValue;
        reachedCallback = true;
        if (!reachedAfterCallback) {
          // We are happening synchronously, so no need for async.
          return;
        }
        // This async operation did not happen synchronously, so we did
        // unwind. In that case there can be no compiled code on the stack,
        // as it might break later operations (we can rewind ok now, but if
        // we unwind again, we would unwind through the extra compiled code
        // too).
        assert(!Asyncify.exportCallStack.length, "Waking up (starting to rewind) must be done from JS, without compiled code on the stack.");
        Asyncify.state = Asyncify.State.Rewinding;
        runAndAbortIfError(() => _asyncify_start_rewind(Asyncify.currData));
        if (typeof MainLoop != "undefined" && MainLoop.func) {
          MainLoop.resume();
        }
        var asyncWasmReturnValue, isError = false;
        try {
          asyncWasmReturnValue = Asyncify.doRewind(Asyncify.currData);
        } catch (err) {
          asyncWasmReturnValue = err;
          isError = true;
        }
        // Track whether the return value was handled by any promise handlers.
        var handled = false;
        if (!Asyncify.currData) {
          // All asynchronous execution has finished.
          // `asyncWasmReturnValue` now contains the final
          // return value of the exported async WASM function.
          // Note: `asyncWasmReturnValue` is distinct from
          // `Asyncify.handleSleepReturnValue`.
          // `Asyncify.handleSleepReturnValue` contains the return
          // value of the last C function to have executed
          // `Asyncify.handleSleep()`, where as `asyncWasmReturnValue`
          // contains the return value of the exported WASM function
          // that may have called C functions that
          // call `Asyncify.handleSleep()`.
          var asyncPromiseHandlers = Asyncify.asyncPromiseHandlers;
          if (asyncPromiseHandlers) {
            Asyncify.asyncPromiseHandlers = null;
            (isError ? asyncPromiseHandlers.reject : asyncPromiseHandlers.resolve)(asyncWasmReturnValue);
            handled = true;
          }
        }
        if (isError && !handled) {
          // If there was an error and it was not handled by now, we have no choice but to
          // rethrow that error into the global scope where it can be caught only by
          // `onerror` or `onunhandledpromiserejection`.
          throw asyncWasmReturnValue;
        }
      });
      reachedAfterCallback = true;
      if (!reachedCallback) {
        // A true async operation was begun; start a sleep.
        Asyncify.state = Asyncify.State.Unwinding;
        // TODO: reuse, don't alloc/free every sleep
        Asyncify.currData = Asyncify.allocateData();
        if (typeof MainLoop != "undefined" && MainLoop.func) {
          MainLoop.pause();
        }
        runAndAbortIfError(() => _asyncify_start_unwind(Asyncify.currData));
      }
    } else if (Asyncify.state === Asyncify.State.Rewinding) {
      // Stop a resume.
      Asyncify.state = Asyncify.State.Normal;
      runAndAbortIfError(_asyncify_stop_rewind);
      _free(Asyncify.currData);
      Asyncify.currData = null;
      // Call all sleep callbacks now that the sleep-resume is all done.
      Asyncify.sleepCallbacks.forEach(callUserCallback);
    } else {
      abort(`invalid state: ${Asyncify.state}`);
    }
    return Asyncify.handleSleepReturnValue;
  },
  handleAsync(startAsync) {
    return Asyncify.handleSleep(wakeUp => {
      // TODO: add error handling as a second param when handleSleep implements it.
      startAsync().then(wakeUp);
    });
  }
};

var getCFunc = ident => {
  var func = Module["_" + ident];
  // closure exported function
  assert(func, "Cannot call unknown function " + ident + ", make sure it is exported");
  return func;
};

var writeArrayToMemory = (array, buffer) => {
  assert(array.length >= 0, "writeArrayToMemory array must have a length (should be an array or typed array)");
  GROWABLE_HEAP_I8().set(array, buffer);
};

var stringToUTF8OnStack = str => {
  var size = lengthBytesUTF8(str) + 1;
  var ret = stackAlloc(size);
  stringToUTF8(str, ret, size);
  return ret;
};

/**
     * @param {string|null=} returnType
     * @param {Array=} argTypes
     * @param {Arguments|Array=} args
     * @param {Object=} opts
     */ var ccall = (ident, returnType, argTypes, args, opts) => {
  // For fast lookup of conversion functions
  var toC = {
    "string": str => {
      var ret = 0;
      if (str !== null && str !== undefined && str !== 0) {
        // null string
        ret = stringToUTF8OnStack(str);
      }
      return ret;
    },
    "array": arr => {
      var ret = stackAlloc(arr.length);
      writeArrayToMemory(arr, ret);
      return ret;
    }
  };
  function convertReturnValue(ret) {
    if (returnType === "string") {
      return UTF8ToString(ret);
    }
    if (returnType === "boolean") return Boolean(ret);
    return ret;
  }
  var func = getCFunc(ident);
  var cArgs = [];
  var stack = 0;
  assert(returnType !== "array", 'Return type should not be "array".');
  if (args) {
    for (var i = 0; i < args.length; i++) {
      var converter = toC[argTypes[i]];
      if (converter) {
        if (stack === 0) stack = stackSave();
        cArgs[i] = converter(args[i]);
      } else {
        cArgs[i] = args[i];
      }
    }
  }
  // Data for a previous async operation that was in flight before us.
  var previousAsync = Asyncify.currData;
  var ret = func(...cArgs);
  function onDone(ret) {
    runtimeKeepalivePop();
    if (stack !== 0) stackRestore(stack);
    return convertReturnValue(ret);
  }
  var asyncMode = opts?.async;
  // Keep the runtime alive through all calls. Note that this call might not be
  // async, but for simplicity we push and pop in all calls.
  runtimeKeepalivePush();
  if (Asyncify.currData != previousAsync) {
    // A change in async operation happened. If there was already an async
    // operation in flight before us, that is an error: we should not start
    // another async operation while one is active, and we should not stop one
    // either. The only valid combination is to have no change in the async
    // data (so we either had one in flight and left it alone, or we didn't have
    // one), or to have nothing in flight and to start one.
    assert(!(previousAsync && Asyncify.currData), "We cannot start an async operation when one is already flight");
    assert(!(previousAsync && !Asyncify.currData), "We cannot stop an async operation in flight");
    // This is a new async operation. The wasm is paused and has unwound its stack.
    // We need to return a Promise that resolves the return value
    // once the stack is rewound and execution finishes.
    assert(asyncMode, "The call to " + ident + " is running asynchronously. If this was intended, add the async option to the ccall/cwrap call.");
    return Asyncify.whenDone().then(onDone);
  }
  ret = onDone(ret);
  // If this is an async ccall, ensure we return a promise
  if (asyncMode) return Promise.resolve(ret);
  return ret;
};

/**
     * @param {string=} returnType
     * @param {Array=} argTypes
     * @param {Object=} opts
     */ var cwrap = (ident, returnType, argTypes, opts) => (...args) => ccall(ident, returnType, argTypes, args, opts);

var uleb128Encode = (n, target) => {
  assert(n < 16384);
  if (n < 128) {
    target.push(n);
  } else {
    target.push((n % 128) | 128, n >> 7);
  }
};

var generateFuncType = (sig, target) => {
  var sigRet = sig.slice(0, 1);
  var sigParam = sig.slice(1);
  var typeCodes = {
    "i": 127,
    // i32
    "p": 127,
    // i32
    "j": 126,
    // i64
    "f": 125,
    // f32
    "d": 124,
    // f64
    "e": 111
  };
  // Parameters, length + signatures
  target.push(96);
  uleb128Encode(sigParam.length, target);
  for (var paramType of sigParam) {
    assert(paramType in typeCodes, `invalid signature char: ${paramType}`);
    target.push(typeCodes[paramType]);
  }
  // Return values, length + signatures
  // With no multi-return in MVP, either 0 (void) or 1 (anything else)
  if (sigRet == "v") {
    target.push(0);
  } else {
    target.push(1, typeCodes[sigRet]);
  }
};

var convertJsFunctionToWasm = (func, sig) => {
  // If the type reflection proposal is available, use the new
  // "WebAssembly.Function" constructor.
  // Otherwise, construct a minimal wasm module importing the JS function and
  // re-exporting it.
  if (typeof WebAssembly.Function == "function") {
    return new WebAssembly.Function(sigToWasmTypes(sig), func);
  }
  // The module is static, with the exception of the type section, which is
  // generated based on the signature passed in.
  var typeSectionBody = [ 1 ];
  generateFuncType(sig, typeSectionBody);
  // Rest of the module is static
  var bytes = [ 0, 97, 115, 109, // magic ("\0asm")
  1, 0, 0, 0, // version: 1
  1 ];
  // Write the overall length of the type section followed by the body
  uleb128Encode(typeSectionBody.length, bytes);
  bytes.push(...typeSectionBody);
  // The rest of the module is static
  bytes.push(2, 7, // import section
  // (import "e" "f" (func 0 (type 0)))
  1, 1, 101, 1, 102, 0, 0, 7, 5, // export section
  // (export "f" (func 0 (type 0)))
  1, 1, 102, 0, 0);
  // We can compile this wasm module synchronously because it is very small.
  // This accepts an import (at "e.f"), that it reroutes to an export (at "f")
  var module = new WebAssembly.Module(new Uint8Array(bytes));
  var instance = new WebAssembly.Instance(module, {
    "e": {
      "f": func
    }
  });
  var wrappedFunc = instance.exports["f"];
  return wrappedFunc;
};

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

var functionsInTableMap;

var getFunctionAddress = func => {
  // First, create the map if this is the first use.
  if (!functionsInTableMap) {
    functionsInTableMap = new WeakMap;
    updateTableMap(0, wasmTable.length);
  }
  return functionsInTableMap.get(func) || 0;
};

var freeTableIndexes = [];

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

var setWasmTableEntry = (idx, func) => {
  /** @suppress {checkTypes} */ wasmTable.set(idx, func);
  // With ABORT_ON_WASM_EXCEPTIONS wasmTable.get is overridden to return wrapped
  // functions so we need to call it here to retrieve the potential wrapper correctly
  // instead of just storing 'func' directly into wasmTableMirror
  /** @suppress {checkTypes} */ wasmTableMirror[idx] = wasmTable.get(idx);
};

/** @param {string=} sig */ var addFunction = (func, sig) => {
  assert(typeof func != "undefined");
  // Check if the function is already in the table, to ensure each function
  // gets a unique index.
  var rtn = getFunctionAddress(func);
  if (rtn) {
    return rtn;
  }
  // It's not in the table, add it now.
  // Make sure functionsInTableMap is actually up to date, that is, that this
  // function is not actually in the wasm Table despite not being tracked in
  // functionsInTableMap.
  for (var i = 0; i < wasmTable.length; i++) {
    assert(getWasmTableEntry(i) != func, "function in Table but not functionsInTableMap");
  }
  var ret = getEmptyTableSlot();
  // Set the new value.
  try {
    // Attempting to call this with JS function will cause of table.set() to fail
    setWasmTableEntry(ret, func);
  } catch (err) {
    if (!(err instanceof TypeError)) {
      throw err;
    }
    assert(typeof sig != "undefined", "Missing signature argument to addFunction: " + func);
    var wrapped = convertJsFunctionToWasm(func, sig);
    setWasmTableEntry(ret, wrapped);
  }
  functionsInTableMap.set(func, ret);
  return ret;
};

var removeFunction = index => {
  functionsInTableMap.delete(getWasmTableEntry(index));
  setWasmTableEntry(index, null);
  freeTableIndexes.push(index);
};

var allocateUTF8 = stringToNewUTF8;

var FS_createPath = FS.createPath;

var FS_unlink = path => FS.unlink(path);

var FS_createLazyFile = FS.createLazyFile;

var FS_createDevice = FS.createDevice;

PThread.init();

FS.createPreloadedFile = FS_createPreloadedFile;

FS.staticInit();

// Set module methods based on EXPORTED_RUNTIME_METHODS
Module["FS_createPath"] = FS.createPath;

Module["FS_createDataFile"] = FS.createDataFile;

Module["FS_createPreloadedFile"] = FS.createPreloadedFile;

Module["FS_unlink"] = FS.unlink;

Module["FS_createLazyFile"] = FS.createLazyFile;

Module["FS_createDevice"] = FS.createDevice;

embind_init_charCodes();

init_emval();

Fetch.init();

registerPreMainLoop(() => {
  // If the current GL context is an OffscreenCanvas, but it was initialized
  // with implicit swap mode, perform the swap on behalf of the user.
  if (GL.currentContext && !GL.currentContextIsProxied && !GL.currentContext.attributes.explicitSwapControl && GL.currentContext.GLctx.commit) {
    GL.currentContext.GLctx.commit();
  }
});

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);
}

// End JS library code
// proxiedFunctionTable specifies the list of functions that can be called
// either synchronously or asynchronously from other threads in postMessage()d
// or internally queued events. This way a pthread in a Worker can synchronously
// access e.g. the DOM on the main thread.
var proxiedFunctionTable = [ _proc_exit, exitOnMainThread, pthreadCreateProxied, ___syscall_fcntl64, ___syscall_fstat64, ___syscall_openat, __mmap_js, __munmap_js, __setitimer_js, setCanvasElementSizeMainThread, _environ_get, _environ_sizes_get, _fd_close, _fd_fdstat_get, _fd_read, _fd_seek, _fd_write ];

function checkIncomingModuleAPI() {
  ignoredModuleProp("fetchSettings");
}

var ASM_CONSTS = {
  414036: () => {
    if (typeof window != "undefined") {
      console.log("logRequest_downloadSucceeded OK");
      window.dispatchEvent(new CustomEvent("wasmTextDownloadSuccessed"));
    } else {
      console.log("logRequest_downloadSucceeded failed");
    }
  },
  414251: () => {
    self.postMessage({
      type: "restart-load-media"
    });
  },
  414305: () => {
    self.postMessage({
      type: "release_done"
    });
  },
  414353: $0 => {
    const canvasId = Module.UTF8ToString($0);
    Module.webcodec_seek_target_pts = -1;
    if (!Module.frameQueueLastQueuedPtsMap) {
      Module.frameQueueLastQueuedPtsMap = {};
    }
    if (!Module.frameQueueLastRenderedPtsMap) {
      Module.frameQueueLastRenderedPtsMap = {};
    }
    if (!Module.frameQueueReplayDiscardBeforePtsMap) {
      Module.frameQueueReplayDiscardBeforePtsMap = {};
    }
    if (!Module.outputSerialMap) {
      Module.outputSerialMap = {};
    }
    Module.frameQueueLastQueuedPtsMap[canvasId] = -1;
    Module.frameQueueLastRenderedPtsMap[canvasId] = -1;
    Module.frameQueueReplayDiscardBeforePtsMap[canvasId] = -1;
    Module.outputSerialMap[canvasId] = Promise.resolve();
    const decoder = Module.decoder;
    Module.decoder = null;
    if (decoder) {
      try {
        decoder.close();
        console.log("Closed VideoDecoder");
      } catch (e) {
        console.warn("VideoDecoder close error:", e);
      }
    }
    if (Module.frameQueueMap && Module.frameQueueMap[canvasId]) {
      Module.frameQueueMap[canvasId].forEach(frame => {
        if (frame.texture && Module.gl) {
          Module.gl.deleteTexture(frame.texture);
          frame.texture = null;
        }
        frame = null;
      });
      Module.frameQueueMap[canvasId] = [];
      Module.frameQueueMap = null;
      console.log("Cleared frame queue");
    }
    if (Module.gopChunk) {
      Module.gopChunk.forEach(chunk => {
        chunk.data = null;
        chunk = null;
      });
      Module.gopChunk = [];
      console.log("Cleared GOP chunks");
    }
    if (Module.shaderProgram && Module.gl) {
      Module.gl.deleteProgram(Module.shaderProgram);
      Module.shaderProgram = null;
      console.log("Deleted shader program");
    }
    if (Module.gl) {
      Module.gl.getExtension("WEBGL_lose_context").loseContext();
      Module.gl = null;
      console.log("Released WebGL context");
    }
  },
  415962: () => {
    self.postMessage({
      type: "release_done"
    });
  },
  416010: $0 => {
    const canvasId = Module.UTF8ToString($0);
    Module.webcodec_seek_target_pts = -1;
    if (!Module.frameQueueLastQueuedPtsMap) {
      Module.frameQueueLastQueuedPtsMap = {};
    }
    if (!Module.frameQueueLastRenderedPtsMap) {
      Module.frameQueueLastRenderedPtsMap = {};
    }
    if (!Module.frameQueueReplayDiscardBeforePtsMap) {
      Module.frameQueueReplayDiscardBeforePtsMap = {};
    }
    if (!Module.outputSerialMap) {
      Module.outputSerialMap = {};
    }
    Module.frameQueueLastQueuedPtsMap[canvasId] = -1;
    Module.frameQueueLastRenderedPtsMap[canvasId] = -1;
    Module.frameQueueReplayDiscardBeforePtsMap[canvasId] = -1;
    Module.outputSerialMap[canvasId] = Promise.resolve();
    const decoder = Module.decoder;
    if (decoder) {
      try {
        console.warn("wcodec ctx root: clean_tex_queue decoder flush", Module.decoder);
        decoder.flush();
      } catch (e) {
        console.warn("VideoDecoder close error:", e);
      }
    }
    if (Module.frameQueueMap && Module.frameQueueMap[canvasId]) {
      Module.frameQueueMap[canvasId].forEach(frame => {
        if (frame.texture && Module.gl) {
          Module.gl.deleteTexture(frame.texture);
          frame.texture = null;
        }
        frame = null;
      });
      Module.frameQueueMap[canvasId] = [];
      console.log("Cleared frame queue");
    }
    if (Module.gopChunk) {
      Module.gopChunk.forEach(chunk => {
        chunk.data = null;
        chunk = null;
      });
      Module.gopChunk = [];
      console.log("Cleared GOP chunks");
    }
    console.warn("wcodec ctx root: clean_tex_queue queue data", Module.frameQueueMap[canvasId]);
  },
  417410: $0 => {
    const canvasId = Module.UTF8ToString($0);
    if (!Module.frameQueueMap || !Module.frameQueueMap[canvasId] || Module.frameQueueMap[canvasId].length === 0) {
      return -1;
    }
    const frame = Module.frameQueueMap[canvasId][0];
    if (frame && typeof frame.pts !== "undefined") {
      return frame.pts;
    }
    return -1;
  },
  417709: $0 => {
    const canvasId = Module.UTF8ToString($0);
    if (!Module.frameQueueMap || !Module.frameQueueMap[canvasId] || Module.frameQueueMap[canvasId].length === 0) {
      return 0;
    }
    const frame = Module.frameQueueMap[canvasId].shift();
    if (frame && frame.texture) {
      Module.gl.deleteTexture(frame.texture);
      frame.texture = null;
    }
    return Module.frameQueueMap[canvasId].length;
  },
  418072: () => {
    const gl = Module.gl;
    if (!gl) return -1;
    const info = gl.getExtension("WEBGL_debug_renderer_info");
    if (info) {
      const vendor = gl.getParameter(info.UNMASKED_VENDOR_WEBGL);
      const renderer = gl.getParameter(info.UNMASKED_RENDERER_WEBGL);
      console.log(`GPU: ${vendor} ${renderer}`);
    }
    let count = 0;
    const width = 1920;
    const height = 1080;
    while (true) {
      try {
        const texture = gl.createTexture();
        gl.bindTexture(gl.TEXTURE_2D, texture);
        gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
        count++;
        console.log(`Created texture ${count}`);
      } catch (e) {
        break;
      }
    }
    return count;
  },
  418695: $0 => {
    Module.gl = null;
    Module.shaderProgram = null;
    Module.gopChunk = [];
    Module.decoder_reconfiguring = false;
    const c_id = Module.UTF8ToString($0);
    Module.webcodec_seek_target_pts = -1;
    function initFrameQueue(canvasId) {
      if (!Module.frameQueueMap) {
        Module.frameQueueMap = {};
      }
      Module.frameQueueMap[c_id] = [];
      if (!Module.frameQueueLastQueuedPtsMap) {
        Module.frameQueueLastQueuedPtsMap = {};
      }
      if (!Module.frameQueueLastRenderedPtsMap) {
        Module.frameQueueLastRenderedPtsMap = {};
      }
      if (!Module.frameQueueReplayDiscardBeforePtsMap) {
        Module.frameQueueReplayDiscardBeforePtsMap = {};
      }
      if (!Module.outputSerialMap) {
        Module.outputSerialMap = {};
      }
      Module.frameQueueLastQueuedPtsMap[c_id] = -1;
      Module.frameQueueLastRenderedPtsMap[c_id] = -1;
      Module.frameQueueReplayDiscardBeforePtsMap[c_id] = -1;
      Module.outputSerialMap[c_id] = Promise.resolve();
    }
    function initWebGL(canvas) {
      Module.gl = canvas.getContext("webgl2", {
        antialias: false,
        powerPreference: "high-performance"
      });
      if (!Module.gl) {
        console.error("WebGL 2.0 not supported");
        return;
      }
      Module.gl.viewport(0, 0, canvas.width, canvas.height);
      const vsSource = "#version 300 es\n" + "in vec4 aVertexPosition;\n" + "in vec2 aTextureCoord;\n" + "out vec2 vTextureCoord;\n" + "void main() {\n" + "    gl_Position = aVertexPosition;\n" + "    vTextureCoord = vec2(aTextureCoord.x, 1.0 - aTextureCoord.y); // 方法1 Y 坐标翻转\n" + "}";
      const fsSource = "#version 300 es\n" + "precision mediump float;\n" + "in vec2 vTextureCoord;\n" + "out vec4 FragColor;\n" + "uniform sampler2D uSampler;\n" + "void main() {\n" + "    FragColor = texture(uSampler, vTextureCoord);\n" + "    //FragColor = texture(uSampler, vec2(vTextureCoord.x, 1.0 - vTextureCoord.y)); // 方法2 反转 Y 坐标\n" + "}";
      const vertexShader = Module.gl.createShader(Module.gl.VERTEX_SHADER);
      Module.gl.shaderSource(vertexShader, vsSource);
      Module.gl.compileShader(vertexShader);
      if (!Module.gl.getShaderParameter(vertexShader, Module.gl.COMPILE_STATUS)) {
        console.error("顶点着色器编译错误:", Module.gl.getShaderInfoLog(vertexShader));
        return;
      }
      const fragmentShader = Module.gl.createShader(Module.gl.FRAGMENT_SHADER);
      Module.gl.shaderSource(fragmentShader, fsSource);
      Module.gl.compileShader(fragmentShader);
      if (!Module.gl.getShaderParameter(fragmentShader, Module.gl.COMPILE_STATUS)) {
        console.error("片段着色器编译错误:", Module.gl.getShaderInfoLog(fragmentShader));
        return;
      }
      Module.shaderProgram = Module.gl.createProgram();
      Module.gl.attachShader(Module.shaderProgram, vertexShader);
      Module.gl.attachShader(Module.shaderProgram, fragmentShader);
      Module.gl.linkProgram(Module.shaderProgram);
      Module.gl.useProgram(Module.shaderProgram);
      if (!Module.gl.getProgramParameter(Module.shaderProgram, Module.gl.LINK_STATUS)) {
        console.error("着色器程序链接错误:", Module.gl.getProgramInfoLog(Module.shaderProgram));
        return;
      }
      const vertices = new Float32Array([ -1, 1, 0, 1, -1, -1, 0, 0, 1, 1, 1, 1, 1, -1, 1, 0 ]);
      const vertexBuffer = Module.gl.createBuffer();
      Module.gl.bindBuffer(Module.gl.ARRAY_BUFFER, vertexBuffer);
      Module.gl.bufferData(Module.gl.ARRAY_BUFFER, vertices, Module.gl.STATIC_DRAW);
      const aVertexPosition = Module.gl.getAttribLocation(Module.shaderProgram, "aVertexPosition");
      Module.gl.vertexAttribPointer(aVertexPosition, 2, Module.gl.FLOAT, false, 16, 0);
      Module.gl.enableVertexAttribArray(aVertexPosition);
      const aTextureCoord = Module.gl.getAttribLocation(Module.shaderProgram, "aTextureCoord");
      Module.gl.vertexAttribPointer(aTextureCoord, 2, Module.gl.FLOAT, false, 16, 8);
      Module.gl.enableVertexAttribArray(aTextureCoord);
    }
    function initDecoderCall(canvas_id) {
      Module.decoderGeneration = (Module.decoderGeneration || 0) + 1;
      const decoderGeneration = Module.decoderGeneration;
      Module.decoder = new VideoDecoder({
        output: frame => {
          const pts = frame.timestamp;
          const frame_width = frame.codedWidth;
          const frame_height = frame.codedHeight;
          const outputChain = Module.outputSerialMap[canvas_id] || Promise.resolve();
          Module.outputSerialMap[canvas_id] = outputChain.then(async () => {
            let bitmap = null;
            let texture = null;
            let frameClosed = false;
            try {
              if (decoderGeneration !== Module.decoderGeneration) {
                console.warn("wcodec drop stale generation output pts=", pts, "generation=", decoderGeneration, "current=", Module.decoderGeneration);
                frame.close();
                frameClosed = true;
                return;
              }
              if (Module.webcodec_seek_target_pts >= 0) {
                if (pts < Module.webcodec_seek_target_pts) {
                  frame.close();
                  frameClosed = true;
                  return;
                } else {
                  Module.webcodec_seek_target_pts = -1;
                  if (Module.frameQueueMap && Module.frameQueueMap[canvas_id]) {
                    Module.frameQueueMap[canvas_id].forEach(frame => {
                      if (frame.texture && Module.gl) {
                        Module.gl.deleteTexture(frame.texture);
                        frame.texture = null;
                      }
                      frame = null;
                    });
                    Module.frameQueueMap[canvas_id] = [];
                    Module.frameQueueLastQueuedPtsMap[canvas_id] = -1;
                    Module.frameQueueLastRenderedPtsMap[canvas_id] = -1;
                    if (Module.frameQueueReplayDiscardBeforePtsMap) {
                      Module.frameQueueReplayDiscardBeforePtsMap[canvas_id] = -1;
                    }
                    console.log("Cleared frame queue");
                  }
                  self.postMessage({
                    type: "seek_success_target",
                    payload: {
                      "width": frame_width,
                      "height": frame_height,
                      "pts": pts,
                      "target_pts": Module.webcodec_seek_target_pts,
                      "cache_size": Module.frameQueueMap[canvas_id].length
                    }
                  });
                }
              }
              if (!Module.gl) {
                console.error("wcodec ctx root:decoder callback : WebGL 2.0 not supported");
                frame.close();
                frameClosed = true;
                return;
              }
              bitmap = await createImageBitmap(frame);
              if (decoderGeneration !== Module.decoderGeneration) {
                console.warn("wcodec drop stale generation bitmap pts=", pts, "generation=", decoderGeneration, "current=", Module.decoderGeneration);
                return;
              }
              const lastRenderedPts = Module.frameQueueLastRenderedPtsMap[canvas_id] ?? -1;
              const lastQueuedPts = Module.frameQueueLastQueuedPtsMap[canvas_id] ?? -1;
              const replayDiscardBeforePts = Module.frameQueueReplayDiscardBeforePtsMap ? (Module.frameQueueReplayDiscardBeforePtsMap[canvas_id] ?? -1) : -1;
              if (replayDiscardBeforePts >= 0 && pts <= replayDiscardBeforePts) {
                console.warn("wcodec drop replay output pts=", pts, "discardBefore=", replayDiscardBeforePts, "lastRendered=", lastRenderedPts);
                return;
              }
              if (replayDiscardBeforePts >= 0 && pts > replayDiscardBeforePts && Module.frameQueueReplayDiscardBeforePtsMap) {
                console.warn("wcodec replay resume output pts=", pts, "discardBefore=", replayDiscardBeforePts);
                Module.frameQueueReplayDiscardBeforePtsMap[canvas_id] = -1;
              }
              if (pts <= lastRenderedPts || (lastQueuedPts >= 0 && pts <= lastQueuedPts)) {
                console.warn("wcodec drop stale output pts=", pts, "lastRendered=", lastRenderedPts, "lastQueued=", lastQueuedPts);
                return;
              }
              texture = Module.gl.createTexture();
              Module.gl.bindTexture(Module.gl.TEXTURE_2D, texture);
              Module.gl.texImage2D(Module.gl.TEXTURE_2D, 0, Module.gl.RGBA, Module.gl.RGBA, Module.gl.UNSIGNED_BYTE, bitmap);
              Module.gl.texParameteri(Module.gl.TEXTURE_2D, Module.gl.TEXTURE_WRAP_S, Module.gl.CLAMP_TO_EDGE);
              Module.gl.texParameteri(Module.gl.TEXTURE_2D, Module.gl.TEXTURE_WRAP_T, Module.gl.CLAMP_TO_EDGE);
              Module.gl.texParameteri(Module.gl.TEXTURE_2D, Module.gl.TEXTURE_MIN_FILTER, Module.gl.LINEAR);
              Module.frameQueueMap[canvas_id].push({
                "texture": texture,
                "width": frame_width,
                "height": frame_height,
                "pts": pts
              });
              Module.frameQueueLastQueuedPtsMap[canvas_id] = pts;
              texture = null;
              self.postMessage({
                type: "decode_video_progress",
                payload: {
                  "width": frame_width,
                  "height": frame_height,
                  "pts": pts,
                  "cache_size": Module.frameQueueMap[canvas_id].length
                }
              });
            } catch (e) {
              console.error("Frame processing error:", e);
              if (texture && Module.gl) {
                Module.gl.deleteTexture(texture);
              }
            } finally {
              if (bitmap) {
                bitmap.close();
              }
              if (!frameClosed) {
                frame.close();
              }
            }
          }).catch(e => {
            console.error("Frame output chain error:", e);
            try {
              frame.close();
            } catch (closeErr) {}
          });
        },
        error: e => {
          if (Module.decoder_reconfiguring) {
            return;
          }
          Module.decoder_reconfiguring = true;
          Module.decoder_error_wait = true;
          const currentQueueLength = Module.frameQueueMap && Module.frameQueueMap[canvas_id] ? Module.frameQueueMap[canvas_id].length : 0;
          const currentLastRenderedPts = Module.frameQueueLastRenderedPtsMap ? (Module.frameQueueLastRenderedPtsMap[canvas_id] ?? -1) : -1;
          const currentLastQueuedPts = Module.frameQueueLastQueuedPtsMap ? (Module.frameQueueLastQueuedPtsMap[canvas_id] ?? -1) : -1;
          const summarizeChunks = chunks => {
            if (!chunks || chunks.length <= 0) {
              return "len=0";
            }
            const first = chunks[0];
            const last = chunks[chunks.length - 1];
            let keyCount = 0;
            for (const chunk of chunks) {
              if (chunk && chunk.type === "key") {
                keyCount += 1;
              }
            }
            const head = chunks.slice(0, Math.min(chunks.length, 4)).map(chunk => `${chunk.type}@${chunk.timestamp}`).join("|");
            const tail = chunks.length > 4 ? chunks.slice(Math.max(4, chunks.length - 2)).map(chunk => `${chunk.type}@${chunk.timestamp}`).join("|") : "";
            return `len=${chunks.length} key_count=${keyCount} first=${first.type}@${first.timestamp} last=${last.type}@${last.timestamp} head=${head}${tail ? ` tail=${tail}` : ""}`;
          };
          const gopSnapshotBeforeReplay = Module.gopChunk ? Module.gopChunk.slice() : [];
          console.error("wcodec decoder error, replay current gop", "generation=", decoderGeneration, "queue_len=", currentQueueLength, "last_rendered_pts=", currentLastRenderedPts, "last_queued_pts=", currentLastQueuedPts, "gop_summary=", summarizeChunks(gopSnapshotBeforeReplay), "name=", e && e.name, "message=", e && e.message, "code=", e && e.code);
          (async () => {
            try {
              if (Module.decoder) {
                try {
                  Module.decoder.close();
                } catch (closeErr) {}
              }
              Module.ccall("wcodec_reset_decoder_status", "", [ "number" ], [ Module.decoder_ctx_ptr ]);
              if (Module.frameQueueReplayDiscardBeforePtsMap) {
                Module.frameQueueReplayDiscardBeforePtsMap[canvas_id] = currentLastQueuedPts;
              }
              if (Module.outputSerialMap) {
                Module.outputSerialMap[canvas_id] = Promise.resolve();
              }
              console.warn("wcodec preserve decoded queue during replay", "queue_len=", currentQueueLength, "last_rendered_pts=", currentLastRenderedPts, "last_queued_pts=", currentLastQueuedPts);
              initDecoderCall(canvas_id);
              Module.decoder.configure(Module.decoder_conf);
              const replayChunks = gopSnapshotBeforeReplay;
              const replayArmsKeyframeGate = replayChunks.length > 0 && replayChunks[0] && replayChunks[0].type === "key";
              if (replayArmsKeyframeGate) {
                Module.ccall("wcodec_mark_keyframe_started", "", [ "number" ], [ Module.decoder_ctx_ptr ]);
                console.warn("wcodec replay arm keyframe gate from replay buffer", "summary=", summarizeChunks(replayChunks));
              } else {
                console.warn("wcodec replay keeps keyframe gate closed", "summary=", summarizeChunks(replayChunks));
              }
              Module.gopChunk = replayChunks.slice();
              console.warn("wcodec replay reseed live gop buffer before decode", "summary=", summarizeChunks(Module.gopChunk));
              for (const chunk of replayChunks) {
                Module.decoder.decode(new EncodedVideoChunk(chunk));
              }
            } catch (err) {
              console.error("reset decoder failed:", err);
            } finally {
              Module.decoder_error_wait = false;
              Module.decoder_reconfiguring = false;
            }
          })();
        }
      });
    }
    initWebGL(Module.canvas);
    initFrameQueue(c_id);
    initDecoderCall(c_id);
  },
  429858: $0 => {
    const c_id = Module.UTF8ToString($0);
    if (!Module.frameQueueMap || !Module.frameQueueMap[c_id]) {
      return 0;
    }
    return Module.frameQueueMap[c_id].length;
  },
  430014: $0 => {
    if (Module.webcodec_seek_target_pts >= 0) {
      return -1;
    }
    const canvasId = UTF8ToString($0);
    if (!Module.frameQueueMap || !Module.frameQueueMap[canvasId] || !Module.frameQueueMap[canvasId].length) {
      return -1;
    }
    const frameData = Module.frameQueueMap[canvasId].shift();
    if (!frameData) {
      return 0;
    }
    Module.gl.activeTexture(Module.gl.TEXTURE0);
    Module.gl.bindTexture(Module.gl.TEXTURE_2D, frameData["texture"]);
    Module.gl.uniform1i(Module.gl.getUniformLocation(Module.shaderProgram, "uSampler"), 0);
    Module.gl.drawArrays(Module.gl.TRIANGLE_STRIP, 0, 4);
    Module.gl.deleteTexture(frameData["texture"]);
    Module.av_align_video_play_ms = frameData["pts"];
    if (!Module.frameQueueLastRenderedPtsMap) {
      Module.frameQueueLastRenderedPtsMap = {};
    }
    Module.frameQueueLastRenderedPtsMap[canvasId] = Module.av_align_video_play_ms;
    self.postMessage({
      type: "render_progress",
      payload: {
        "width": frameData["width"],
        "height": frameData["height"],
        "pts": Module.av_align_video_play_ms
      }
    });
    return 1;
  },
  431003: ($0, $1, $2, $3, $4, $5) => {
    const canvasId = Module.UTF8ToString($4);
    const data = new Uint8Array(Module.HEAPU8.subarray($0, $0 + $1));
    if ($3 > 0) {
      const oldGopLen = Module.gopChunk ? Module.gopChunk.length : 0;
      const oldGopLastTs = oldGopLen > 0 ? Module.gopChunk[oldGopLen - 1].timestamp : -1;
      console.warn("core feed start new gop on key", "ts=", Number($2), "old_gop_len=", oldGopLen, "old_gop_last_ts=", oldGopLastTs);
      Module.gopChunk = [];
    }
    if ($5 > 0 && Module.webcodec_seek_target_pts >= 0) {
      if (Module.frameQueueMap && Module.frameQueueMap[canvasId]) {
        Module.frameQueueMap[canvasId].forEach(frame => {
          if (frame.texture && Module.gl) {
            Module.gl.deleteTexture(frame.texture);
            frame.texture = null;
          }
          frame = null;
        });
        Module.frameQueueMap[canvasId] = [];
        if (Module.frameQueueLastQueuedPtsMap) {
          Module.frameQueueLastQueuedPtsMap[canvasId] = -1;
        }
        if (Module.frameQueueLastRenderedPtsMap) {
          Module.frameQueueLastRenderedPtsMap[canvasId] = -1;
        }
        if (Module.frameQueueReplayDiscardBeforePtsMap) {
          Module.frameQueueReplayDiscardBeforePtsMap[canvasId] = -1;
        }
        console.log("Cleared frame queue");
      }
    }
    const key_type = $3 > 0 ? "key" : "delta";
    const timestamp = Number($2);
    Module.gopChunk.push({
      "type": key_type,
      "timestamp": timestamp,
      "data": data
    });
    const chunk = new EncodedVideoChunk({
      type: key_type,
      timestamp,
      data
    });
    Module.decoder.decode(chunk);
  }
};

function js_alert_demuxer(msg) {
  console.log(UTF8ToString(msg));
  if (typeof self !== "undefined" && self.constructor?.name === "DedicatedWorkerGlobalScope") {
    postMessage({
      type: "alert_page",
      payload: UTF8ToString(msg)
    });
    self.close();
  } else {
    alert(UTF8ToString(msg));
  }
}

function js_reload_page_demuxer() {
  if (typeof self !== "undefined" && self.constructor?.name === "DedicatedWorkerGlobalScope") {
    postMessage({
      type: "reload_page"
    });
    self.close();
  } else {
    location.reload();
  }
}

function js_alert_wdec(msg) {
  console.log(UTF8ToString(msg));
  if (typeof self !== "undefined" && self.constructor?.name === "DedicatedWorkerGlobalScope") {
    postMessage({
      type: "alert_page",
      payload: UTF8ToString(msg)
    });
    self.close();
  } else {
    alert(UTF8ToString(msg));
  }
}

function js_reload_page_wdec() {
  if (typeof self !== "undefined" && self.constructor?.name === "DedicatedWorkerGlobalScope") {
    postMessage({
      type: "reload_page"
    });
    self.close();
  } else {
    location.reload();
  }
}

function js_alert_ffdec(msg) {
  console.log(UTF8ToString(msg));
  if (typeof self !== "undefined" && self.constructor?.name === "DedicatedWorkerGlobalScope") {
    postMessage({
      type: "alert_page",
      payload: UTF8ToString(msg)
    });
    self.close();
  } else {
    alert(UTF8ToString(msg));
  }
}

function js_reload_page_ffdec() {
  if (typeof self !== "undefined" && self.constructor?.name === "DedicatedWorkerGlobalScope") {
    postMessage({
      type: "reload_page"
    });
    self.close();
  } else {
    location.reload();
  }
}

var wasmImports;

function assignWasmImports() {
  wasmImports = {
    /** @export */ __assert_fail: ___assert_fail,
    /** @export */ __cxa_throw: ___cxa_throw,
    /** @export */ __handle_stack_overflow: ___handle_stack_overflow,
    /** @export */ __pthread_create_js: ___pthread_create_js,
    /** @export */ __syscall_fcntl64: ___syscall_fcntl64,
    /** @export */ __syscall_fstat64: ___syscall_fstat64,
    /** @export */ __syscall_openat: ___syscall_openat,
    /** @export */ _abort_js: __abort_js,
    /** @export */ _embind_register_bigint: __embind_register_bigint,
    /** @export */ _embind_register_bool: __embind_register_bool,
    /** @export */ _embind_register_emval: __embind_register_emval,
    /** @export */ _embind_register_float: __embind_register_float,
    /** @export */ _embind_register_integer: __embind_register_integer,
    /** @export */ _embind_register_memory_view: __embind_register_memory_view,
    /** @export */ _embind_register_std_string: __embind_register_std_string,
    /** @export */ _embind_register_std_wstring: __embind_register_std_wstring,
    /** @export */ _embind_register_void: __embind_register_void,
    /** @export */ _emscripten_init_main_thread_js: __emscripten_init_main_thread_js,
    /** @export */ _emscripten_notify_mailbox_postmessage: __emscripten_notify_mailbox_postmessage,
    /** @export */ _emscripten_receive_on_main_thread_js: __emscripten_receive_on_main_thread_js,
    /** @export */ _emscripten_runtime_keepalive_clear: __emscripten_runtime_keepalive_clear,
    /** @export */ _emscripten_thread_cleanup: __emscripten_thread_cleanup,
    /** @export */ _emscripten_thread_mailbox_await: __emscripten_thread_mailbox_await,
    /** @export */ _emscripten_thread_set_strongref: __emscripten_thread_set_strongref,
    /** @export */ _emscripten_throw_longjmp: __emscripten_throw_longjmp,
    /** @export */ _gmtime_js: __gmtime_js,
    /** @export */ _localtime_js: __localtime_js,
    /** @export */ _mktime_js: __mktime_js,
    /** @export */ _mmap_js: __mmap_js,
    /** @export */ _munmap_js: __munmap_js,
    /** @export */ _setitimer_js: __setitimer_js,
    /** @export */ _tzset_js: __tzset_js,
    /** @export */ clock_time_get: _clock_time_get,
    /** @export */ emscripten_asm_const_int: _emscripten_asm_const_int,
    /** @export */ emscripten_check_blocking_allowed: _emscripten_check_blocking_allowed,
    /** @export */ emscripten_date_now: _emscripten_date_now,
    /** @export */ emscripten_exit_with_live_runtime: _emscripten_exit_with_live_runtime,
    /** @export */ emscripten_fetch_free: _emscripten_fetch_free,
    /** @export */ emscripten_get_heap_max: _emscripten_get_heap_max,
    /** @export */ emscripten_get_now: _emscripten_get_now,
    /** @export */ emscripten_num_logical_cores: _emscripten_num_logical_cores,
    /** @export */ emscripten_resize_heap: _emscripten_resize_heap,
    /** @export */ emscripten_runtime_keepalive_check: _emscripten_runtime_keepalive_check,
    /** @export */ emscripten_set_canvas_element_size: _emscripten_set_canvas_element_size,
    /** @export */ emscripten_start_fetch: _emscripten_start_fetch,
    /** @export */ emscripten_webgl_create_context: _emscripten_webgl_create_context,
    /** @export */ emscripten_webgl_destroy_context: _emscripten_webgl_destroy_context,
    /** @export */ emscripten_webgl_make_context_current: _emscripten_webgl_make_context_current,
    /** @export */ environ_get: _environ_get,
    /** @export */ environ_sizes_get: _environ_sizes_get,
    /** @export */ exit: _exit,
    /** @export */ fd_close: _fd_close,
    /** @export */ fd_fdstat_get: _fd_fdstat_get,
    /** @export */ fd_read: _fd_read,
    /** @export */ fd_seek: _fd_seek,
    /** @export */ fd_write: _fd_write,
    /** @export */ glActiveTexture: _glActiveTexture,
    /** @export */ glAttachShader: _glAttachShader,
    /** @export */ glBindBuffer: _glBindBuffer,
    /** @export */ glBindFramebuffer: _glBindFramebuffer,
    /** @export */ glBindTexture: _glBindTexture,
    /** @export */ glBlendFunc: _glBlendFunc,
    /** @export */ glBufferData: _glBufferData,
    /** @export */ glClear: _glClear,
    /** @export */ glClearColor: _glClearColor,
    /** @export */ glCompileShader: _glCompileShader,
    /** @export */ glCreateProgram: _glCreateProgram,
    /** @export */ glCreateShader: _glCreateShader,
    /** @export */ glDeleteFramebuffers: _glDeleteFramebuffers,
    /** @export */ glDeleteProgram: _glDeleteProgram,
    /** @export */ glDeleteTextures: _glDeleteTextures,
    /** @export */ glDepthFunc: _glDepthFunc,
    /** @export */ glDisable: _glDisable,
    /** @export */ glDrawArrays: _glDrawArrays,
    /** @export */ glEnable: _glEnable,
    /** @export */ glEnableVertexAttribArray: _glEnableVertexAttribArray,
    /** @export */ glFramebufferTexture2D: _glFramebufferTexture2D,
    /** @export */ glGenBuffers: _glGenBuffers,
    /** @export */ glGenFramebuffers: _glGenFramebuffers,
    /** @export */ glGenTextures: _glGenTextures,
    /** @export */ glGetAttribLocation: _glGetAttribLocation,
    /** @export */ glGetError: _glGetError,
    /** @export */ glGetProgramiv: _glGetProgramiv,
    /** @export */ glGetShaderInfoLog: _glGetShaderInfoLog,
    /** @export */ glGetShaderiv: _glGetShaderiv,
    /** @export */ glGetUniformLocation: _glGetUniformLocation,
    /** @export */ glLinkProgram: _glLinkProgram,
    /** @export */ glShaderSource: _glShaderSource,
    /** @export */ glTexImage2D: _glTexImage2D,
    /** @export */ glTexParameterf: _glTexParameterf,
    /** @export */ glTexParameteri: _glTexParameteri,
    /** @export */ glUniform1i: _glUniform1i,
    /** @export */ glUniformMatrix4fv: _glUniformMatrix4fv,
    /** @export */ glUseProgram: _glUseProgram,
    /** @export */ glVertexAttribPointer: _glVertexAttribPointer,
    /** @export */ glViewport: _glViewport,
    /** @export */ invoke_iii,
    /** @export */ invoke_iiii,
    /** @export */ invoke_iiiii,
    /** @export */ memory: wasmMemory,
    /** @export */ proc_exit: _proc_exit
  };
}

var wasmExports = await createWasm();

var ___wasm_call_ctors = createExportWrapper("__wasm_call_ctors", 0);

var _malloc = Module["_malloc"] = createExportWrapper("malloc", 1);

var _free = Module["_free"] = createExportWrapper("free", 1);

var _bind_demuxer_callback = Module["_bind_demuxer_callback"] = createExportWrapper("bind_demuxer_callback", 10);

var _init_demuxer_ctx = Module["_init_demuxer_ctx"] = createExportWrapper("init_demuxer_ctx", 0);

var _release_demuxer_ctx = Module["_release_demuxer_ctx"] = createExportWrapper("release_demuxer_ctx", 1);

var _push_buffer = Module["_push_buffer"] = createExportWrapper("push_buffer", 4);

var _push_probe = Module["_push_probe"] = createExportWrapper("push_probe", 2);

var _fetch_done_buffer = Module["_fetch_done_buffer"] = createExportWrapper("fetch_done_buffer", 1);

var _demuxer_video_pkt = Module["_demuxer_video_pkt"] = createExportWrapper("demuxer_video_pkt", 3);

var _ffdemuxer_set_read_frame_multiple_times = Module["_ffdemuxer_set_read_frame_multiple_times"] = createExportWrapper("ffdemuxer_set_read_frame_multiple_times", 2);

var _ffdemuxer_set_mode_live = Module["_ffdemuxer_set_mode_live"] = createExportWrapper("ffdemuxer_set_mode_live", 1);

var _ffdemuxer_set_format_hint = Module["_ffdemuxer_set_format_hint"] = createExportWrapper("ffdemuxer_set_format_hint", 2);

var _test_call = Module["_test_call"] = createExportWrapper("test_call", 1);

var _init_webcodec_ctx = Module["_init_webcodec_ctx"] = createExportWrapper("init_webcodec_ctx", 0);

var _release_webcodec_ctx = Module["_release_webcodec_ctx"] = createExportWrapper("release_webcodec_ctx", 1);

var _wcodec_gpu_memory_info = Module["_wcodec_gpu_memory_info"] = createExportWrapper("wcodec_gpu_memory_info", 1);

var _wcodec_init_gl_cb = Module["_wcodec_init_gl_cb"] = createExportWrapper("wcodec_init_gl_cb", 2);

var _wcodec_create_data_buffer = Module["_wcodec_create_data_buffer"] = createExportWrapper("wcodec_create_data_buffer", 2);

var _wcodec_feed_data = Module["_wcodec_feed_data"] = createExportWrapper("wcodec_feed_data", 5);

var _wcodec_reset_decoder_status = Module["_wcodec_reset_decoder_status"] = createExportWrapper("wcodec_reset_decoder_status", 1);

var _wcodec_mark_keyframe_started = Module["_wcodec_mark_keyframe_started"] = createExportWrapper("wcodec_mark_keyframe_started", 1);

var _free_buffer = Module["_free_buffer"] = createExportWrapper("free_buffer", 2);

var _wcodec_get_frame_queue_length = Module["_wcodec_get_frame_queue_length"] = createExportWrapper("wcodec_get_frame_queue_length", 1);

var _wcodec_render_frame_from_queue = Module["_wcodec_render_frame_from_queue"] = createExportWrapper("wcodec_render_frame_from_queue", 1);

var _wcodec_first_cache_pts_ms = Module["_wcodec_first_cache_pts_ms"] = createExportWrapper("wcodec_first_cache_pts_ms", 1);

var _wcodec_pop_cache = Module["_wcodec_pop_cache"] = createExportWrapper("wcodec_pop_cache", 1);

var _wcodec_clean_tex_queue = Module["_wcodec_clean_tex_queue"] = createExportWrapper("wcodec_clean_tex_queue", 1);

var _init_ffdecoder_ctx = Module["_init_ffdecoder_ctx"] = createExportWrapper("init_ffdecoder_ctx", 0);

var _release_ffdecoder_ctx = Module["_release_ffdecoder_ctx"] = createExportWrapper("release_ffdecoder_ctx", 1);

var _ffdecoder_set_video_decoder = Module["_ffdecoder_set_video_decoder"] = createExportWrapper("ffdecoder_set_video_decoder", 4);

var _ffdecoder_set_video_decoder_with_extra = Module["_ffdecoder_set_video_decoder_with_extra"] = createExportWrapper("ffdecoder_set_video_decoder_with_extra", 6);

var _ffdecoder_set_audio_decoder = Module["_ffdecoder_set_audio_decoder"] = createExportWrapper("ffdecoder_set_audio_decoder", 2);

var _ffdecoder_decode_video_frame = Module["_ffdecoder_decode_video_frame"] = createExportWrapper("ffdecoder_decode_video_frame", 6);

var _ffdecoder_decode_audio_frame = Module["_ffdecoder_decode_audio_frame"] = createExportWrapper("ffdecoder_decode_audio_frame", 6);

var _ffdecoder_bind_callback = Module["_ffdecoder_bind_callback"] = createExportWrapper("ffdecoder_bind_callback", 3);

var _ffdecoder_seek_set = Module["_ffdecoder_seek_set"] = createExportWrapper("ffdecoder_seek_set", 2);

var _init_cylopengl_ctx = Module["_init_cylopengl_ctx"] = createExportWrapper("init_cylopengl_ctx", 0);

var _cylopengl_create_context = Module["_cylopengl_create_context"] = createExportWrapper("cylopengl_create_context", 5);

var _cylopengl_create_shader_algorithm = Module["_cylopengl_create_shader_algorithm"] = createExportWrapper("cylopengl_create_shader_algorithm", 4);

var _cylopengl_release_renderer_source = Module["_cylopengl_release_renderer_source"] = createExportWrapper("cylopengl_release_renderer_source", 0);

var _cylopengl_change_viewport = Module["_cylopengl_change_viewport"] = createExportWrapper("cylopengl_change_viewport", 2);

var _cylopengl_is_init = Module["_cylopengl_is_init"] = createExportWrapper("cylopengl_is_init", 0);

var _cylopengl_install_text_object = Module["_cylopengl_install_text_object"] = createExportWrapper("cylopengl_install_text_object", 1);

var _cylopengl_render_text = Module["_cylopengl_render_text"] = createExportWrapper("cylopengl_render_text", 2);

var _cylopengl_request_font_text_style_file = Module["_cylopengl_request_font_text_style_file"] = createExportWrapper("cylopengl_request_font_text_style_file", 1);

var _cylopengl_append_cache_texture = Module["_cylopengl_append_cache_texture"] = createExportWrapper("cylopengl_append_cache_texture", 3);

var _cylopengl_get_cache_length = Module["_cylopengl_get_cache_length"] = createExportWrapper("cylopengl_get_cache_length", 0);

var _cylopengl_clean_cache_queue = Module["_cylopengl_clean_cache_queue"] = createExportWrapper("cylopengl_clean_cache_queue", 0);

var _cylopengl_render_cache_texture = Module["_cylopengl_render_cache_texture"] = createExportWrapper("cylopengl_render_cache_texture", 0);

var _cylopengl_render_test_rgba = Module["_cylopengl_render_test_rgba"] = createExportWrapper("cylopengl_render_test_rgba", 4);

var _cylopengl_append_cache_yuv420p = Module["_cylopengl_append_cache_yuv420p"] = createExportWrapper("cylopengl_append_cache_yuv420p", 9);

var _cylopengl_get_cache_yuv_length = Module["_cylopengl_get_cache_yuv_length"] = createExportWrapper("cylopengl_get_cache_yuv_length", 0);

var _cylopengl_render_cache_yuv420p = Module["_cylopengl_render_cache_yuv420p"] = createExportWrapper("cylopengl_render_cache_yuv420p", 0);

var _cylopengl_first_cache_pts_ms = Module["_cylopengl_first_cache_pts_ms"] = createExportWrapper("cylopengl_first_cache_pts_ms", 0);

var _cylopengl_pop_cache_yuv420p = Module["_cylopengl_pop_cache_yuv420p"] = createExportWrapper("cylopengl_pop_cache_yuv420p", 0);

var _cylopengl_render_test_yuv420p = Module["_cylopengl_render_test_yuv420p"] = createExportWrapper("cylopengl_render_test_yuv420p", 8);

var _main = Module["_main"] = createExportWrapper("main", 2);

var ___getTypeName = createExportWrapper("__getTypeName", 1);

var __embind_initialize_bindings = createExportWrapper("_embind_initialize_bindings", 0);

var __emscripten_tls_init = createExportWrapper("_emscripten_tls_init", 0);

var _pthread_self = () => (_pthread_self = wasmExports["pthread_self"])();

var _emscripten_builtin_memalign = createExportWrapper("emscripten_builtin_memalign", 2);

var __emscripten_proxy_main = Module["__emscripten_proxy_main"] = createExportWrapper("_emscripten_proxy_main", 2);

var _emscripten_stack_get_base = () => (_emscripten_stack_get_base = wasmExports["emscripten_stack_get_base"])();

var _emscripten_stack_get_end = () => (_emscripten_stack_get_end = wasmExports["emscripten_stack_get_end"])();

var __emscripten_set_offscreencanvas_size_on_thread = createExportWrapper("_emscripten_set_offscreencanvas_size_on_thread", 4);

var __emscripten_thread_init = createExportWrapper("_emscripten_thread_init", 6);

var __emscripten_thread_crashed = createExportWrapper("_emscripten_thread_crashed", 0);

var _fflush = createExportWrapper("fflush", 1);

var __emscripten_run_on_main_thread_js = createExportWrapper("_emscripten_run_on_main_thread_js", 5);

var __emscripten_thread_free_data = createExportWrapper("_emscripten_thread_free_data", 1);

var __emscripten_thread_exit = createExportWrapper("_emscripten_thread_exit", 1);

var __emscripten_timeout = createExportWrapper("_emscripten_timeout", 2);

var _strerror = createExportWrapper("strerror", 1);

var __emscripten_check_mailbox = createExportWrapper("_emscripten_check_mailbox", 0);

var _setThrew = createExportWrapper("setThrew", 2);

var _emscripten_stack_init = () => (_emscripten_stack_init = wasmExports["emscripten_stack_init"])();

var _emscripten_stack_set_limits = (a0, a1) => (_emscripten_stack_set_limits = wasmExports["emscripten_stack_set_limits"])(a0, a1);

var _emscripten_stack_get_free = () => (_emscripten_stack_get_free = wasmExports["emscripten_stack_get_free"])();

var __emscripten_stack_restore = a0 => (__emscripten_stack_restore = wasmExports["_emscripten_stack_restore"])(a0);

var __emscripten_stack_alloc = a0 => (__emscripten_stack_alloc = wasmExports["_emscripten_stack_alloc"])(a0);

var _emscripten_stack_get_current = () => (_emscripten_stack_get_current = wasmExports["emscripten_stack_get_current"])();

var ___cxa_increment_exception_refcount = createExportWrapper("__cxa_increment_exception_refcount", 1);

var ___set_stack_limits = Module["___set_stack_limits"] = createExportWrapper("__set_stack_limits", 2);

var dynCall_ii = Module["dynCall_ii"] = createExportWrapper("dynCall_ii", 2);

var dynCall_iii = Module["dynCall_iii"] = createExportWrapper("dynCall_iii", 3);

var dynCall_iiii = Module["dynCall_iiii"] = createExportWrapper("dynCall_iiii", 4);

var dynCall_jiji = Module["dynCall_jiji"] = createExportWrapper("dynCall_jiji", 4);

var dynCall_jiiji = Module["dynCall_jiiji"] = createExportWrapper("dynCall_jiiji", 5);

var dynCall_iiiji = Module["dynCall_iiiji"] = createExportWrapper("dynCall_iiiji", 5);

var dynCall_v = Module["dynCall_v"] = createExportWrapper("dynCall_v", 1);

var dynCall_viiiiii = Module["dynCall_viiiiii"] = createExportWrapper("dynCall_viiiiii", 7);

var dynCall_vi = Module["dynCall_vi"] = createExportWrapper("dynCall_vi", 2);

var dynCall_iiiii = Module["dynCall_iiiii"] = createExportWrapper("dynCall_iiiii", 5);

var dynCall_jiiij = Module["dynCall_jiiij"] = createExportWrapper("dynCall_jiiij", 5);

var dynCall_viii = Module["dynCall_viii"] = createExportWrapper("dynCall_viii", 4);

var dynCall_iiiiij = Module["dynCall_iiiiij"] = createExportWrapper("dynCall_iiiiij", 6);

var dynCall_vii = Module["dynCall_vii"] = createExportWrapper("dynCall_vii", 3);

var dynCall_iiiiii = Module["dynCall_iiiiii"] = createExportWrapper("dynCall_iiiiii", 6);

var dynCall_viiiii = Module["dynCall_viiiii"] = createExportWrapper("dynCall_viiiii", 6);

var dynCall_viiiiiifi = Module["dynCall_viiiiiifi"] = createExportWrapper("dynCall_viiiiiifi", 9);

var dynCall_viiii = Module["dynCall_viiii"] = createExportWrapper("dynCall_viiii", 5);

var dynCall_iiiiiii = Module["dynCall_iiiiiii"] = createExportWrapper("dynCall_iiiiiii", 7);

var dynCall_viiiiiiiiiiiiii = Module["dynCall_viiiiiiiiiiiiii"] = createExportWrapper("dynCall_viiiiiiiiiiiiii", 15);

var dynCall_viiiiiiiii = Module["dynCall_viiiiiiiii"] = createExportWrapper("dynCall_viiiiiiiii", 10);

var dynCall_viiiiiiiiiii = Module["dynCall_viiiiiiiiiii"] = createExportWrapper("dynCall_viiiiiiiiiii", 12);

var dynCall_viiiiiiii = Module["dynCall_viiiiiiii"] = createExportWrapper("dynCall_viiiiiiii", 9);

var dynCall_viiiiiii = Module["dynCall_viiiiiii"] = createExportWrapper("dynCall_viiiiiii", 8);

var dynCall_viiiiiiiiiiii = Module["dynCall_viiiiiiiiiiii"] = createExportWrapper("dynCall_viiiiiiiiiiii", 13);

var dynCall_viiiifii = Module["dynCall_viiiifii"] = createExportWrapper("dynCall_viiiifii", 8);

var dynCall_fii = Module["dynCall_fii"] = createExportWrapper("dynCall_fii", 3);

var dynCall_viiiiiiiiii = Module["dynCall_viiiiiiiiii"] = createExportWrapper("dynCall_viiiiiiiiii", 11);

var dynCall_viiijj = Module["dynCall_viiijj"] = createExportWrapper("dynCall_viiijj", 6);

var dynCall_iiiiiiidiiddii = Module["dynCall_iiiiiiidiiddii"] = createExportWrapper("dynCall_iiiiiiidiiddii", 14);

var dynCall_jij = Module["dynCall_jij"] = createExportWrapper("dynCall_jij", 3);

var dynCall_jii = Module["dynCall_jii"] = createExportWrapper("dynCall_jii", 3);

var dynCall_viifi = Module["dynCall_viifi"] = createExportWrapper("dynCall_viifi", 5);

var dynCall_fiii = Module["dynCall_fiii"] = createExportWrapper("dynCall_fiii", 4);

var dynCall_viidi = Module["dynCall_viidi"] = createExportWrapper("dynCall_viidi", 5);

var dynCall_dd = Module["dynCall_dd"] = createExportWrapper("dynCall_dd", 2);

var dynCall_iiiiiiiii = Module["dynCall_iiiiiiiii"] = createExportWrapper("dynCall_iiiiiiiii", 9);

var dynCall_iidiiii = Module["dynCall_iidiiii"] = createExportWrapper("dynCall_iidiiii", 7);

var dynCall_iiiiiiiiii = Module["dynCall_iiiiiiiiii"] = createExportWrapper("dynCall_iiiiiiiiii", 10);

var dynCall_iiiiiiii = Module["dynCall_iiiiiiii"] = createExportWrapper("dynCall_iiiiiiii", 8);

var dynCall_viijii = Module["dynCall_viijii"] = createExportWrapper("dynCall_viijii", 6);

var dynCall_iiiiid = Module["dynCall_iiiiid"] = createExportWrapper("dynCall_iiiiid", 6);

var dynCall_iiiiijj = Module["dynCall_iiiiijj"] = createExportWrapper("dynCall_iiiiijj", 7);

var dynCall_iiiiiijj = Module["dynCall_iiiiiijj"] = createExportWrapper("dynCall_iiiiiijj", 8);

var _asyncify_start_unwind = createExportWrapper("asyncify_start_unwind", 1);

var _asyncify_stop_unwind = createExportWrapper("asyncify_stop_unwind", 0);

var _asyncify_start_rewind = createExportWrapper("asyncify_start_rewind", 1);

var _asyncify_stop_rewind = createExportWrapper("asyncify_stop_rewind", 0);

var _ff_h264_cabac_tables = Module["_ff_h264_cabac_tables"] = 192984;

function invoke_iii(index, a1, a2) {
  var sp = stackSave();
  try {
    return dynCall_iii(index, a1, a2);
  } catch (e) {
    stackRestore(sp);
    if (e !== e + 0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_iiiii(index, a1, a2, a3, a4) {
  var sp = stackSave();
  try {
    return dynCall_iiiii(index, a1, a2, a3, a4);
  } catch (e) {
    stackRestore(sp);
    if (e !== e + 0) throw e;
    _setThrew(1, 0);
  }
}

function invoke_iiii(index, a1, a2, a3) {
  var sp = stackSave();
  try {
    return dynCall_iiii(index, a1, a2, a3);
  } catch (e) {
    stackRestore(sp);
    if (e !== e + 0) throw e;
    _setThrew(1, 0);
  }
}

// include: postamble.js
// === Auto-generated postamble setup entry stuff ===
Module["addRunDependency"] = addRunDependency;

Module["removeRunDependency"] = removeRunDependency;

Module["ccall"] = ccall;

Module["cwrap"] = cwrap;

Module["addFunction"] = addFunction;

Module["removeFunction"] = removeFunction;

Module["UTF8ToString"] = UTF8ToString;

Module["stringToUTF8"] = stringToUTF8;

Module["FS_createPreloadedFile"] = FS_createPreloadedFile;

Module["FS_unlink"] = FS_unlink;

Module["FS_createPath"] = FS_createPath;

Module["FS_createDevice"] = FS_createDevice;

Module["FS"] = FS;

Module["FS_createDataFile"] = FS_createDataFile;

Module["FS_createLazyFile"] = FS_createLazyFile;

Module["allocateUTF8"] = allocateUTF8;

var missingLibrarySymbols = [ "writeI53ToI64Clamped", "writeI53ToI64Signaling", "writeI53ToU64Clamped", "writeI53ToU64Signaling", "convertI32PairToI53", "convertI32PairToI53Checked", "convertU32PairToI53", "getTempRet0", "setTempRet0", "inetPton4", "inetNtop4", "inetPton6", "inetNtop6", "readSockaddr", "writeSockaddr", "emscriptenLog", "runMainThreadEmAsm", "listenOnce", "autoResumeAudioContext", "dynCallLegacy", "getDynCaller", "dynCall", "asmjsMangle", "getNativeTypeSize", "addOnInit", "addOnPostCtor", "addOnPreMain", "addOnExit", "STACK_SIZE", "STACK_ALIGN", "POINTER_SIZE", "ASSERTIONS", "reallyNegative", "unSign", "strLen", "reSign", "formatString", "intArrayToString", "AsciiToString", "registerKeyEventCallback", "findEventTarget", "getBoundingClientRect", "fillMouseEventData", "registerMouseEventCallback", "registerWheelEventCallback", "registerUiEventCallback", "registerFocusEventCallback", "fillDeviceOrientationEventData", "registerDeviceOrientationEventCallback", "fillDeviceMotionEventData", "registerDeviceMotionEventCallback", "screenOrientation", "fillOrientationChangeEventData", "registerOrientationChangeEventCallback", "fillFullscreenChangeEventData", "registerFullscreenChangeEventCallback", "JSEvents_requestFullscreen", "JSEvents_resizeCanvasForFullscreen", "registerRestoreOldStyle", "hideEverythingExceptGivenElement", "restoreHiddenElements", "setLetterbox", "softFullscreenResizeWebGLRenderTarget", "doRequestFullscreen", "fillPointerlockChangeEventData", "registerPointerlockChangeEventCallback", "registerPointerlockErrorEventCallback", "requestPointerLock", "fillVisibilityChangeEventData", "registerVisibilityChangeEventCallback", "registerTouchEventCallback", "fillGamepadEventData", "registerGamepadEventCallback", "registerBeforeUnloadEventCallback", "fillBatteryEventData", "battery", "registerBatteryEventCallback", "setCanvasElementSize", "getCanvasSizeCallingThread", "getCanvasSizeMainThread", "getCanvasElementSize", "jsStackTrace", "getCallstack", "convertPCtoSourceLocation", "wasiRightsToMuslOFlags", "wasiOFlagsToMuslOFlags", "safeSetTimeout", "setImmediateWrapped", "safeRequestAnimationFrame", "clearImmediateWrapped", "registerPostMainLoop", "getPromise", "makePromise", "idsToPromises", "makePromiseCallback", "findMatchingCatch", "Browser_asyncPrepareDataCounter", "arraySum", "addDays", "getSocketFromFD", "getSocketAddress", "FS_mkdirTree", "_setNetworkCallback", "emscriptenWebGLGet", "emscriptenWebGLGetUniform", "emscriptenWebGLGetVertexAttrib", "__glGetActiveAttribOrUniform", "writeGLArray", "emscripten_webgl_destroy_context_before_on_calling_thread", "registerWebGlEventCallback", "GLFW_Window", "emscriptenWebGLGetIndexed", "ALLOC_NORMAL", "ALLOC_STACK", "allocate", "writeStringToMemory", "writeAsciiToMemory", "demangle", "stackTrace", "throwInternalError", "whenDependentTypesAreResolved", "getTypeName", "getFunctionName", "getFunctionArgsName", "heap32VectorToArray", "requireRegisteredType", "usesDestructorStack", "createJsInvokerSignature", "checkArgCount", "getRequiredArgCount", "createJsInvoker", "UnboundTypeError", "PureVirtualError", "throwUnboundTypeError", "ensureOverloadTable", "exposePublicSymbol", "replacePublicSymbol", "createNamedFunction", "getBasestPointer", "registerInheritedInstance", "unregisterInheritedInstance", "getInheritedInstance", "getInheritedInstanceCount", "getLiveInheritedInstances", "enumReadValueFromPointer", "runDestructors", "craftInvokerFunction", "embind__requireFunction", "genericPointerToWireType", "constNoSmartPtrRawPointerToWireType", "nonConstNoSmartPtrRawPointerToWireType", "init_RegisteredPointer", "RegisteredPointer", "RegisteredPointer_fromWireType", "runDestructor", "releaseClassHandle", "detachFinalizer", "attachFinalizer", "makeClassHandle", "init_ClassHandle", "ClassHandle", "throwInstanceAlreadyDeleted", "flushPendingDeletes", "setDelayFunction", "RegisteredClass", "shallowCopyInternalPointer", "downcastPointer", "upcastPointer", "validateThis", "char_0", "char_9", "makeLegalFunctionName", "getStringOrSymbol", "emval_get_global", "emval_returnValue", "emval_lookupTypes", "emval_addMethodCaller" ];

missingLibrarySymbols.forEach(missingLibrarySymbol);

var unexportedSymbols = [ "run", "out", "err", "callMain", "abort", "wasmMemory", "wasmExports", "GROWABLE_HEAP_I8", "GROWABLE_HEAP_U8", "GROWABLE_HEAP_I16", "GROWABLE_HEAP_U16", "GROWABLE_HEAP_I32", "GROWABLE_HEAP_U32", "GROWABLE_HEAP_F32", "GROWABLE_HEAP_F64", "writeStackCookie", "checkStackCookie", "writeI53ToI64", "readI53FromI64", "readI53FromU64", "INT53_MAX", "INT53_MIN", "bigintToI53Checked", "stackSave", "stackRestore", "stackAlloc", "ptrToString", "zeroMemory", "exitJS", "getHeapMax", "growMemory", "ENV", "setStackLimits", "ERRNO_CODES", "strError", "DNS", "Protocols", "Sockets", "timers", "warnOnce", "readEmAsmArgsArray", "readEmAsmArgs", "runEmAsmFunction", "jstoi_q", "jstoi_s", "getExecutableName", "handleException", "keepRuntimeAlive", "runtimeKeepalivePush", "runtimeKeepalivePop", "callUserCallback", "maybeExit", "asyncLoad", "alignMemory", "mmapAlloc", "HandleAllocator", "wasmTable", "noExitRuntime", "addOnPreRun", "addOnPostRun", "getCFunc", "uleb128Encode", "sigToWasmTypes", "generateFuncType", "convertJsFunctionToWasm", "freeTableIndexes", "functionsInTableMap", "getEmptyTableSlot", "updateTableMap", "getFunctionAddress", "setValue", "getValue", "PATH", "PATH_FS", "UTF8Decoder", "UTF8ArrayToString", "stringToUTF8Array", "lengthBytesUTF8", "intArrayFromString", "stringToAscii", "UTF16Decoder", "UTF16ToString", "stringToUTF16", "lengthBytesUTF16", "UTF32ToString", "stringToUTF32", "lengthBytesUTF32", "stringToNewUTF8", "stringToUTF8OnStack", "writeArrayToMemory", "JSEvents", "specialHTMLTargets", "maybeCStringToJsString", "findCanvasEventTarget", "currentFullscreenStrategy", "restoreOldWindowedStyle", "setCanvasElementSizeCallingThread", "setOffscreenCanvasSizeOnTargetThread", "setCanvasElementSizeMainThread", "UNWIND_CACHE", "ExitStatus", "getEnvStrings", "checkWasiClock", "doReadv", "doWritev", "initRandomFill", "randomFill", "emSetImmediate", "emClearImmediate_deps", "emClearImmediate", "registerPreMainLoop", "promiseMap", "uncaughtExceptionCount", "exceptionLast", "exceptionCaught", "ExceptionInfo", "Browser", "getPreloadedImageData__data", "wget", "MONTH_DAYS_REGULAR", "MONTH_DAYS_LEAP", "MONTH_DAYS_REGULAR_CUMULATIVE", "MONTH_DAYS_LEAP_CUMULATIVE", "isLeapYear", "ydayFromDate", "SYSCALLS", "preloadPlugins", "FS_modeStringToFlags", "FS_getMode", "FS_stdin_getChar_buffer", "FS_stdin_getChar", "FS_readFile", "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", "computeUnpackAlignedImageSize", "colorChannelsInGlTextureFormat", "emscriptenWebGLGetTexPixelData", "webglGetUniformLocation", "webglPrepareUniformLocationsBeforeFirstUse", "webglGetLeftBracePos", "AL", "GLUT", "EGL", "GLEW", "IDBStore", "runAndAbortIfError", "Asyncify", "Fibers", "SDL", "SDL_gfx", "GLFW", "webgl_enable_WEBGL_draw_instanced_base_vertex_base_instance", "webgl_enable_WEBGL_multi_draw_instanced_base_vertex_base_instance", "allocateUTF8OnStack", "print", "printErr", "PThread", "terminateWorker", "cleanupThread", "registerTLSInit", "spawnThread", "exitOnMainThread", "proxyToMainThread", "proxiedJSCallArgs", "invokeEntryPoint", "checkMailbox", "InternalError", "BindingError", "throwBindingError", "registeredTypes", "awaitingDependencies", "typeDependencies", "tupleRegistrations", "structRegistrations", "sharedRegisterType", "embind_charCodes", "embind_init_charCodes", "readLatin1String", "GenericWireTypeSize", "EmValType", "EmValOptionalType", "embindRepr", "registeredInstances", "registeredPointers", "registerType", "integerReadValueFromPointer", "floatReadValueFromPointer", "readPointer", "finalizationRegistry", "detachFinalizer_deps", "deletionQueue", "delayFunction", "emval_freelist", "emval_handles", "emval_symbols", "init_emval", "count_emval_handles", "Emval", "emval_methodCallers", "reflectConstruct", "Fetch", "fetchDeleteCachedData", "fetchLoadCachedData", "fetchCacheData", "fetchXHR" ];

unexportedSymbols.forEach(unexportedRuntimeSymbol);

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 = __emscripten_proxy_main;
  // With PROXY_TO_PTHREAD make sure we keep the runtime alive until the
  // proxied main calls exit (see exitOnMainThread() for where Pop is called).
  runtimeKeepalivePush();
  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.
  // See $establishStackSpace for the equivalent code that runs on a thread
  assert(!ENVIRONMENT_IS_PTHREAD);
  _emscripten_stack_init();
  // TODO(sbc): Move writeStackCookie to native to to avoid this.
  writeStackCookie();
}

function run() {
  if (runDependencies > 0) {
    dependenciesFulfilled = run;
    return;
  }
  if ((ENVIRONMENT_IS_PTHREAD)) {
    readyPromiseResolve(Module);
    initRuntime();
    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();
    readyPromiseResolve(Module);
    Module["onRuntimeInitialized"]?.();
    consumedModuleProp("onRuntimeInitialized");
    var noInitialRun = Module["noInitialRun"];
    legacyModuleProp("noInitialRun", "noInitialRun");
    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
    [ "stdout", "stderr" ].forEach(name => {
      var info = FS.analyzePath("/dev/" + name);
      if (!info) return;
      var stream = info.object;
      var rdev = stream.rdev;
      var tty = TTY.ttys[rdev];
      if (tty?.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.");
  }
}

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

consumedModuleProp("preInit");

run();

// end include: postamble.js
// include: postamble_modularize.js
// In MODULARIZE mode we wrap the generated code in a factory function
// and return either the Module itself, or a promise of the module.
// We assign to the `moduleRtn` global here and configure closure to see
// this as and extern so it won't get minified.
moduleRtn = readyPromise;

// Assertion for attempting to access module properties on the incoming
// moduleArg.  In the past we used this object as the prototype of the module
// and assigned properties to it, but now we return a distinct object.  This
// keeps the instance private until it is ready (i.e the promise has been
// resolved).
for (const prop of Object.keys(Module)) {
  if (!(prop in moduleArg)) {
    Object.defineProperty(moduleArg, prop, {
      configurable: true,
      get() {
        abort(`Access to module property ('${prop}') is no longer possible via the module constructor argument; Instead, use the result of the module constructor.`);
      }
    });
  }
}


  return moduleRtn;
}
);
})();
if (typeof exports === 'object' && typeof module === 'object') {
  module.exports = WasmModule;
  // This default export looks redundant, but it allows TS to import this
  // commonjs style module.
  module.exports.default = WasmModule;
} else if (typeof define === 'function' && define['amd'])
  define([], () => WasmModule);
var isPthread = globalThis.self?.name?.startsWith('em-pthread');
// When running as a pthread, construct a new instance on startup
isPthread && WasmModule();
