squoosh/codecs/avif/enc/avif_enc_mt.worker.js

var threadInfoStruct = 0;
var selfThreadId = 0;
var parentThreadId = 0;
var initializedJS = false;
var Module = {};
function threadPrintErr() {
  var text = Array.prototype.slice.call(arguments).join(' ');
  console.error(text);
}
function threadAlert() {
  var text = Array.prototype.slice.call(arguments).join(' ');
  postMessage({ cmd: 'alert', text: text, threadId: selfThreadId });
}
var err = threadPrintErr;
this.alert = threadAlert;
Module['instantiateWasm'] = function (info, receiveInstance) {
  var instance = new WebAssembly.Instance(Module['wasmModule'], info);
  Module['wasmModule'] = null;
  receiveInstance(instance);
  return instance.exports;
};
this.onmessage = function (e) {
  try {
    if (e.data.cmd === 'load') {
      Module['wasmModule'] = e.data.wasmModule;
      Module['wasmMemory'] = e.data.wasmMemory;
      Module['buffer'] = Module['wasmMemory'].buffer;
      Module['ENVIRONMENT_IS_PTHREAD'] = true;
      import(e.data.urlOrBlob)
        .then(function (avif_enc_mt) {
          return avif_enc_mt.default(Module);
        })
        .then(function (instance) {
          Module = instance;
          postMessage({ cmd: 'loaded' });
        });
    } else if (e.data.cmd === 'objectTransfer') {
      Module['PThread'].receiveObjectTransfer(e.data);
    } else if (e.data.cmd === 'run') {
      Module['__performance_now_clock_drift'] = performance.now() - e.data.time;
      threadInfoStruct = e.data.threadInfoStruct;
      Module['registerPthreadPtr'](
        threadInfoStruct,
        /*isMainBrowserThread=*/ 0,
        /*isMainRuntimeThread=*/ 0,
      );
      selfThreadId = e.data.selfThreadId;
      parentThreadId = e.data.parentThreadId;
      var max = e.data.stackBase;
      var top = e.data.stackBase + e.data.stackSize;
      Module['establishStackSpace'](top, max);
      Module['_emscripten_tls_init']();
      Module['PThread'].receiveObjectTransfer(e.data);
      Module['PThread'].setThreadStatus(Module['_pthread_self'](), 1);
      if (!initializedJS) {
        Module['___embind_register_native_and_builtin_types']();
        initializedJS = true;
      }
      try {
        var result = Module['dynCall']('ii', e.data.start_routine, [
          e.data.arg,
        ]);
        if (!Module['getNoExitRuntime']()) Module['PThread'].threadExit(result);
      } catch (ex) {
        if (ex === 'Canceled!') {
          Module['PThread'].threadCancel();
        } else if (ex != 'unwind') {
          Atomics.store(
            Module['HEAPU32'],
            (threadInfoStruct + 4) >> /*C_STRUCTS.pthread.threadExitCode*/ 2,
            ex instanceof Module['ExitStatus'] ? ex.status : -2,
          );
          /*A custom entry specific to Emscripten denoting that the thread crashed.*/ Atomics.store(
            Module['HEAPU32'],
            (threadInfoStruct + 0) >> /*C_STRUCTS.pthread.threadStatus*/ 2,
            1,
          );
          Module['_emscripten_futex_wake'](
            threadInfoStruct + 0,
            /*C_STRUCTS.pthread.threadStatus*/ 2147483647,
          );
          if (!(ex instanceof Module['ExitStatus'])) throw ex;
        }
      }
    } else if (e.data.cmd === 'cancel') {
      if (threadInfoStruct) {
        Module['PThread'].threadCancel();
      }
    } else if (e.data.target === 'setimmediate') {
    } else if (e.data.cmd === 'processThreadQueue') {
      if (threadInfoStruct) {
        Module['_emscripten_current_thread_process_queued_calls']();
      }
    } else {
      err('worker.js received unknown command ' + e.data.cmd);
      err(e.data);
    }
  } catch (ex) {
    err('worker.js onmessage() captured an uncaught exception: ' + ex);
    if (ex && ex.stack) err(ex.stack);
    throw ex;
  }
};