@mediapipe/tasks-audio
Version:
MediaPipe Audio Tasks. See the privacy notice at https://goo.gle/mediapipe-privacy.
6,889 lines • 252 kB
JavaScript
// This code implements the `-sMODULARIZE` settings by taking the generated
// JS program code (INNER_JS_CODE) and wrapping it in a factory function.
// Single threaded MINIMAL_RUNTIME programs do not need access to
// document.currentScript, so a simple export declaration is enough.
var ModuleFactory = (() => {
// When MODULARIZE this JS may be executed later,
// after document.currentScript is gone, so we save it.
// In EXPORT_ES6 mode we can just use 'import.meta.url'.
var _scriptName = globalThis.document?.currentScript?.src;
return async function(moduleArg = {}) {
var Module = moduleArg;
// include: shell.js
// include: minimum_runtime_check.js
// end include: minimum_runtime_check.js
// The Module object: Our interface to the outside world. We import
// and export values on it. There are various ways Module can be used:
// 1. Not defined. We create it here
// 2. A function parameter, function(moduleArg) => Promise<Module>
// 3. pre-run appended it, var Module = {}; ..generated code..
// 4. External script tag defines var Module.
// We need to check if Module already exists (e.g. case 3 above).
// Substitution will be replaced with actual code on later stage of the build,
// this way Closure Compiler will not mangle it (e.g. case 4. above).
// Note that if you want to run closure, and also to use Module
// after the generated code, you will need to define var Module = {};
// before the code. Then that object will be used in the code, and you
// can continue to use Module afterwards as well.
// Determine the runtime environment we are in. You can customize this by
// setting the ENVIRONMENT setting at compile time (see settings.js).
// Attempt to auto-detect the environment
var ENVIRONMENT_IS_WEB = !!globalThis.window;
var ENVIRONMENT_IS_WORKER = !!globalThis.WorkerGlobalScope;
// N.b. Electron.js environment is simultaneously a NODE-environment, but
// also a web environment.
var ENVIRONMENT_IS_NODE = globalThis.process?.versions?.node && globalThis.process?.type != "renderer";
// --pre-jses are emitted after the Module integration code, so that they can
// refer to Module (if they choose; they can also define Module)
var programArgs = [];
var thisProgram = "./this.program";
var quit_ = (status, toThrow) => {
throw toThrow;
};
if (typeof __filename != "undefined") {
// Node
_scriptName = __filename;
} else if (ENVIRONMENT_IS_WORKER) {
_scriptName = self.location.href;
}
// `/` should be present at the end if `scriptDirectory` is not empty
var scriptDirectory = "";
function locateFile(path) {
if (Module["locateFile"]) {
return Module["locateFile"](path, scriptDirectory);
}
return scriptDirectory + path;
}
// Hooks that are implemented differently in different runtime environments.
var readAsync, readBinary;
if (ENVIRONMENT_IS_NODE) {
// These modules will usually be used on Node.js. Load them eagerly to avoid
// the complexity of lazy-loading.
var fs = require("node:fs");
scriptDirectory = __dirname + "/";
// include: node_shell_read.js
readBinary = filename => {
// We need to re-wrap `file://` strings to URLs.
filename = isFileURI(filename) ? new URL(filename) : filename;
var ret = fs.readFileSync(filename);
return ret;
};
readAsync = async (filename, binary = true) => {
// See the comment in the `readBinary` function.
filename = isFileURI(filename) ? new URL(filename) : filename;
var ret = fs.readFileSync(filename, binary ? undefined : "utf8");
return ret;
};
// end include: node_shell_read.js
if (process.argv.length > 1) {
thisProgram = process.argv[1].replace(/\\/g, "/");
}
programArgs = process.argv.slice(2);
quit_ = (status, toThrow) => {
process.exitCode = status;
throw toThrow;
};
} 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) {
try {
scriptDirectory = new URL(".", _scriptName).href;
} catch {}
{
// include: web_or_worker_shell_read.js
if (ENVIRONMENT_IS_WORKER) {
readBinary = url => {
var xhr = new XMLHttpRequest;
xhr.open("GET", url, false);
xhr.responseType = "arraybuffer";
xhr.send(null);
return new Uint8Array(/** @type{!ArrayBuffer} */ (xhr.response));
};
}
readAsync = async url => {
// Fetch has some additional restrictions over XHR, like it can't be used on a file:// url.
// See https://github.com/github/fetch/pull/92#issuecomment-140665932
// Cordova or Electron apps are typically loaded from a file:// url.
// So use XHR on webview if URL is a file URL.
if (isFileURI(url)) {
return new Promise((resolve, reject) => {
var xhr = new XMLHttpRequest;
xhr.open("GET", url, true);
xhr.responseType = "arraybuffer";
xhr.onload = () => {
if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) {
// file URLs can return 0
resolve(xhr.response);
return;
}
reject(xhr.status);
};
xhr.onerror = reject;
xhr.send(null);
});
}
var response = await fetch(url, {
credentials: "same-origin"
});
if (response.ok) {
return response.arrayBuffer();
}
throw new Error(response.status + " : " + response.url);
};
}
} else {}
var out = console.log.bind(console);
var err = console.error.bind(console);
// 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;
// Wasm globals
//========================================
// Runtime essentials
//========================================
// whether we are quitting the application. no code should run after this.
// set in exit() and abort()
var ABORT = false;
// set by exit() and abort(). Passed to 'onExit' handler.
// NOTE: This is also used as the process return code in shell environments
// but only when noExitRuntime is false.
var EXITSTATUS;
// In STRICT mode, we only define assert() when ASSERTIONS is set. i.e. we
// don't define it at all in release modes. This matches the behaviour of
// MINIMAL_RUNTIME.
// TODO(sbc): Make this the default even without STRICT enabled.
/** @type {function(*, string=)} */ function assert(condition, text) {
if (!condition) {
// This build was created without ASSERTIONS defined. `assert()` should not
// ever be called in this configuration but in case there are callers in
// the wild leave this simple abort() implementation here for now.
abort(text);
}
}
/**
* Indicates whether filename is delivered via file protocol (as opposed to http/https)
* @noinline
*/ var isFileURI = filename => filename.startsWith("file://");
// include: runtime_common.js
// include: runtime_stack_check.js
// end include: runtime_stack_check.js
// include: runtime_exceptions.js
// Base Emscripten EH error class
class EmscriptenEH {}
class EmscriptenSjLj extends EmscriptenEH {}
// end include: runtime_exceptions.js
// include: runtime_debug.js
// end include: runtime_debug.js
// Memory management
var runtimeInitialized = false;
function updateMemoryViews() {
var b = wasmMemory.buffer;
HEAP8 = new Int8Array(b);
HEAP16 = new Int16Array(b);
Module["HEAPU8"] = HEAPU8 = new Uint8Array(b);
HEAPU16 = new Uint16Array(b);
HEAP32 = new Int32Array(b);
Module["HEAPU32"] = HEAPU32 = new Uint32Array(b);
Module["HEAPF32"] = HEAPF32 = new Float32Array(b);
Module["HEAPF64"] = HEAPF64 = new Float64Array(b);
}
// include: memoryprofiler.js
// end include: memoryprofiler.js
// end include: runtime_common.js
function preRun() {
if (Module["preRun"]) {
if (typeof Module["preRun"] == "function") Module["preRun"] = [ Module["preRun"] ];
while (Module["preRun"].length) {
addOnPreRun(Module["preRun"].shift());
}
}
// Begin ATPRERUNS hooks
callRuntimeCallbacks(onPreRuns);
}
function initRuntime() {
runtimeInitialized = true;
// Begin ATINITS hooks
if (!Module["noFSInit"] && !FS.initialized) FS.init();
TTY.init();
// End ATINITS hooks
wasmExports["ib"]();
// Begin ATPOSTCTORS hooks
FS.ignorePermissions = false;
}
function postRun() {
// 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());
}
}
// Begin ATPOSTRUNS hooks
callRuntimeCallbacks(onPostRuns);
}
/**
* @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;
what += ". Build with -sASSERTIONS for more info.";
// Use a wasm runtime error, because a JS error might be seen as a foreign
// exception, which means we'd run destructors on it. We need the error to
// simply make the program stop.
// FIXME This approach does not work in Wasm EH because it currently does not assume
// all RuntimeErrors are from traps; it decides whether a RuntimeError is from
// a trap or not based on a hidden field within the object. So at the moment
// we don't have a way of throwing a wasm trap from JS. TODO Make a JS API that
// allows this in the wasm spec.
// Suppress closure compiler warning here. Closure compiler's builtin extern
// definition for WebAssembly.RuntimeError claims it takes no arguments even
// though it can.
// TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure gets fixed.
/** @suppress {checkTypes} */ var e = new WebAssembly.RuntimeError(what);
// Throw the error whether or not MODULARIZE is set because abort is used
// in code paths apart from instantiation where an exception is expected
// to be thrown when abort is called.
throw e;
}
var wasmBinaryFile;
function findWasmBinary() {
return locateFile("audio_wasm_nosimd_internal.wasm");
}
function getBinarySync(file) {
if (file == wasmBinaryFile && wasmBinary) {
return new Uint8Array(wasmBinary);
}
if (readBinary) {
return readBinary(file);
}
// Throwing a plain string here, even though it not normally advisable since
// this gets turning into an `abort` in instantiateArrayBuffer.
throw "both async and sync fetching of the wasm failed";
}
async function getWasmBinary(binaryFile) {
// If we don't have the binary yet, load it asynchronously using readAsync.
if (!wasmBinary) {
// Fetch the binary using readAsync
try {
var response = await readAsync(binaryFile);
return new Uint8Array(response);
} catch {}
}
// 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}`);
abort(reason);
}
}
async function instantiateAsync(binary, binaryFile, imports) {
if (!binary && !isFileURI(binaryFile) && !ENVIRONMENT_IS_NODE) {
try {
var response = fetch(binaryFile, {
credentials: "same-origin"
});
var instantiationResult = await WebAssembly.instantiateStreaming(response, imports);
return instantiationResult;
} catch (reason) {
// We expect the most common failure cause to be a bad MIME type for the binary,
// in which case falling back to ArrayBuffer instantiation should work.
err(`wasm streaming compile failed: ${reason}`);
err("falling back to ArrayBuffer instantiation");
}
}
return instantiateArrayBuffer(binaryFile, imports);
}
function getWasmImports() {
// prepare imports
var imports = {
"a": wasmImports
};
return imports;
}
// Create the wasm instance.
// Receives the wasm imports, returns the exports.
async function createWasm() {
// Load the wasm module and create an instance of using native support in the JS engine.
// handle a generated wasm instance, receiving its exports and
// performing other necessary setup
/** @param {WebAssembly.Module=} module*/ function receiveInstance(instance, module) {
wasmExports = instance.exports;
assignWasmExports(wasmExports);
updateMemoryViews();
return wasmExports;
}
// Prefer streaming instantiation if available.
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
// TODO: Due to Closure regression https://github.com/google/closure-compiler/issues/3193, the above line no longer optimizes out down to the following line.
// When the regression is fixed, can restore the above PTHREADS-enabled path.
return receiveInstance(result["instance"]);
}
var info = getWasmImports();
// User shell pages can write their own Module.instantiateWasm = function(imports, successCallback) callback
// to manually instantiate the Wasm module themselves. This allows pages to
// run the instantiation parallel to any other async startup actions they are
// performing.
// Also pthreads and wasm workers initialize the wasm instance through this
// path.
if (Module["instantiateWasm"]) {
return new Promise((resolve, reject) => {
Module["instantiateWasm"](info, (inst, mod) => {
resolve(receiveInstance(inst, mod));
});
});
}
wasmBinaryFile ??= findWasmBinary();
var result = await instantiateAsync(wasmBinary, wasmBinaryFile, info);
var exports = receiveInstantiationResult(result);
return exports;
}
// Globals used by JS i64 conversions (see makeSetValue)
var tempDouble;
var tempI64;
// end include: preamble.js
// Begin JS library code
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;
}
quit_(1, e);
};
class ExitStatus {
name="ExitStatus";
constructor(status) {
this.message = `Program terminated with exit(${status})`;
this.status = status;
}
}
var runtimeKeepaliveCounter = 0;
var keepRuntimeAlive = () => noExitRuntime || runtimeKeepaliveCounter > 0;
var _proc_exit = code => {
EXITSTATUS = code;
if (!keepRuntimeAlive()) {
Module["onExit"]?.(code);
ABORT = true;
}
quit_(code, new ExitStatus(code));
};
/** @param {boolean|number=} implicit */ var exitJS = (status, implicit) => {
EXITSTATUS = status;
_proc_exit(status);
};
var _exit = exitJS;
var maybeExit = () => {
if (!keepRuntimeAlive()) {
try {
_exit(EXITSTATUS);
} catch (e) {
handleException(e);
}
}
};
var callUserCallback = func => {
if (ABORT) {
return;
}
try {
return func();
} catch (e) {
handleException(e);
} finally {
maybeExit();
}
};
function getFullscreenElement() {
return document.fullscreenElement || document.mozFullScreenElement || document.webkitFullscreenElement || document.webkitCurrentFullScreenElement || document.msFullscreenElement;
}
/** @param {number=} timeout */ var safeSetTimeout = (func, timeout) => setTimeout(() => {
callUserCallback(func);
}, timeout);
var warnOnce = text => {
warnOnce.shown ||= {};
if (!warnOnce.shown[text]) {
warnOnce.shown[text] = 1;
if (ENVIRONMENT_IS_NODE) text = "warning: " + text;
err(text);
}
};
var preloadPlugins = [];
var Browser = {
useWebGL: false,
isFullscreen: false,
pointerLock: false,
moduleContextCreatedCallbacks: [],
workers: [],
preloadedImages: {},
preloadedAudios: {},
getCanvas: () => Module["canvas"],
init() {
if (Browser.initted) return;
Browser.initted = true;
// Support for plugins that can process preloaded files. You can add more of these to
// your app by creating and appending to preloadPlugins.
// Each plugin is asked if it can handle a file based on the file's name. If it can,
// it is given the file's raw data. When it is done, it calls a callback with the file's
// (possibly modified) data. For example, a plugin might decompress a file, or it
// might create some side data structure for use later (like an Image element, etc.).
var imagePlugin = {};
imagePlugin["canHandle"] = name => !Module["noImageDecoding"] && /\.(jpg|jpeg|png|bmp|webp)$/i.test(name);
imagePlugin["handle"] = async (byteArray, name) => {
var b = new Blob([ byteArray ], {
type: Browser.getMimetype(name)
});
if (b.size !== byteArray.length) {
// Safari bug #118630
// Safari's Blob can only take an ArrayBuffer
b = new Blob([ (new Uint8Array(byteArray)).buffer ], {
type: Browser.getMimetype(name)
});
}
var url = URL.createObjectURL(b);
return new Promise((resolve, reject) => {
var img = new Image;
img.onload = () => {
var canvas = /** @type {!HTMLCanvasElement} */ (document.createElement("canvas"));
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
Browser.preloadedImages[name] = canvas;
URL.revokeObjectURL(url);
resolve(byteArray);
};
img.onerror = event => {
err(`Image ${url} could not be decoded`);
reject();
};
img.src = url;
});
};
preloadPlugins.push(imagePlugin);
var audioPlugin = {};
audioPlugin["canHandle"] = name => !Module["noAudioDecoding"] && name.slice(-4) in {
".ogg": 1,
".wav": 1,
".mp3": 1
};
audioPlugin["handle"] = async (byteArray, name) => new Promise((resolve, reject) => {
var done = false;
function finish(audio) {
if (done) return;
done = true;
Browser.preloadedAudios[name] = audio;
resolve(byteArray);
}
var b = new Blob([ byteArray ], {
type: Browser.getMimetype(name)
});
var url = URL.createObjectURL(b);
// XXX we never revoke this!
var audio = new Audio;
audio.addEventListener("canplaythrough", () => finish(audio), false);
// use addEventListener due to chromium bug 124926
audio.onerror = event => {
if (done) return;
err(`warning: browser could not fully decode audio ${name}, trying slower base64 approach`);
function encode64(data) {
var BASE = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
var PAD = "=";
var ret = "";
var leftchar = 0;
var leftbits = 0;
for (var i = 0; i < data.length; i++) {
leftchar = (leftchar << 8) | data[i];
leftbits += 8;
while (leftbits >= 6) {
var curr = (leftchar >> (leftbits - 6)) & 63;
leftbits -= 6;
ret += BASE[curr];
}
}
if (leftbits == 2) {
ret += BASE[(leftchar & 3) << 4];
ret += PAD + PAD;
} else if (leftbits == 4) {
ret += BASE[(leftchar & 15) << 2];
ret += PAD;
}
return ret;
}
audio.src = "data:audio/x-" + name.slice(-3) + ";base64," + encode64(byteArray);
finish(audio);
};
audio.src = url;
// workaround for chrome bug 124926 - we do not always get oncanplaythrough or onerror
safeSetTimeout(() => {
finish(audio);
}, 1e4);
});
preloadPlugins.push(audioPlugin);
// Canvas event setup
function pointerLockChange() {
var canvas = Browser.getCanvas();
Browser.pointerLock = document.pointerLockElement === canvas;
}
var canvas = Browser.getCanvas();
if (canvas) {
// forced aspect ratio can be enabled by defining 'forcedAspectRatio' on Module
// Module['forcedAspectRatio'] = 4 / 3;
document.addEventListener("pointerlockchange", pointerLockChange, false);
if (Module["elementPointerLock"]) {
canvas.addEventListener("click", ev => {
if (!Browser.pointerLock && Browser.getCanvas().requestPointerLock) {
Browser.getCanvas().requestPointerLock();
ev.preventDefault();
}
}, false);
}
}
},
createContext(/** @type {HTMLCanvasElement} */ canvas, useWebGL, setInModule, webGLContextAttributes) {
if (useWebGL && Module["ctx"] && canvas == Browser.getCanvas()) return Module["ctx"];
// no need to recreate GL context if it's already been created for this canvas.
var ctx;
var contextHandle;
if (useWebGL) {
// For GLES2/desktop GL compatibility, adjust a few defaults to be different to WebGL defaults, so that they align better with the desktop defaults.
var contextAttributes = {
antialias: false,
alpha: false,
majorVersion: (typeof WebGL2RenderingContext != "undefined") ? 2 : 1
};
if (webGLContextAttributes) {
for (var attribute in webGLContextAttributes) {
contextAttributes[attribute] = webGLContextAttributes[attribute];
}
}
// This check of existence of GL is here to satisfy Closure compiler, which yells if variable GL is referenced below but GL object is not
// actually compiled in because application is not doing any GL operations. TODO: Ideally if GL is not being used, this function
// Browser.createContext() should not even be emitted.
if (typeof GL != "undefined") {
contextHandle = GL.createContext(canvas, contextAttributes);
if (contextHandle) {
ctx = GL.getContext(contextHandle).GLctx;
}
}
} else {
ctx = canvas.getContext("2d");
}
if (!ctx) return null;
if (setInModule) {
Module["ctx"] = ctx;
if (useWebGL) GL.makeContextCurrent(contextHandle);
Browser.useWebGL = useWebGL;
Browser.moduleContextCreatedCallbacks.forEach(callback => callback());
Browser.init();
}
return ctx;
},
fullscreenHandlersInstalled: false,
lockPointer: undefined,
resizeCanvas: undefined,
requestFullscreen(lockPointer, resizeCanvas) {
Browser.lockPointer = lockPointer;
Browser.resizeCanvas = resizeCanvas;
if (typeof Browser.lockPointer == "undefined") Browser.lockPointer = true;
if (typeof Browser.resizeCanvas == "undefined") Browser.resizeCanvas = false;
var canvas = Browser.getCanvas();
function fullscreenChange() {
Browser.isFullscreen = false;
var canvasContainer = canvas.parentNode;
if (getFullscreenElement() === canvasContainer) {
canvas.exitFullscreen = Browser.exitFullscreen;
if (Browser.lockPointer) canvas.requestPointerLock();
Browser.isFullscreen = true;
if (Browser.resizeCanvas) {
Browser.setFullscreenCanvasSize();
} else {
Browser.updateCanvasDimensions(canvas);
}
} else {
// remove the full screen specific parent of the canvas again to restore the HTML structure from before going full screen
canvasContainer.parentNode.insertBefore(canvas, canvasContainer);
canvasContainer.parentNode.removeChild(canvasContainer);
if (Browser.resizeCanvas) {
Browser.setWindowedCanvasSize();
} else {
Browser.updateCanvasDimensions(canvas);
}
}
Module["onFullScreen"]?.(Browser.isFullscreen);
Module["onFullscreen"]?.(Browser.isFullscreen);
}
if (!Browser.fullscreenHandlersInstalled) {
Browser.fullscreenHandlersInstalled = true;
document.addEventListener("fullscreenchange", fullscreenChange, false);
document.addEventListener("mozfullscreenchange", fullscreenChange, false);
document.addEventListener("webkitfullscreenchange", fullscreenChange, false);
document.addEventListener("MSFullscreenChange", fullscreenChange, false);
}
// create a new parent to ensure the canvas has no siblings. this allows browsers to optimize full screen performance when its parent is the full screen root
var canvasContainer = document.createElement("div");
canvas.parentNode.insertBefore(canvasContainer, canvas);
canvasContainer.appendChild(canvas);
// use parent of canvas as full screen root to allow aspect ratio correction (Firefox stretches the root to screen size)
canvasContainer.requestFullscreen = canvasContainer["requestFullscreen"] || canvasContainer["mozRequestFullScreen"] || canvasContainer["msRequestFullscreen"] || (canvasContainer["webkitRequestFullscreen"] ? () => canvasContainer["webkitRequestFullscreen"](Element["ALLOW_KEYBOARD_INPUT"]) : null) || (canvasContainer["webkitRequestFullScreen"] ? () => canvasContainer["webkitRequestFullScreen"](Element["ALLOW_KEYBOARD_INPUT"]) : null);
canvasContainer.requestFullscreen();
},
exitFullscreen() {
// This is workaround for chrome. Trying to exit from fullscreen
// not in fullscreen state will cause "TypeError: Document not active"
// in chrome. See https://github.com/emscripten-core/emscripten/pull/8236
if (!Browser.isFullscreen) {
return false;
}
var CFS = document["exitFullscreen"] || document["cancelFullScreen"] || document["mozCancelFullScreen"] || document["msExitFullscreen"] || document["webkitCancelFullScreen"] || (() => {});
CFS.apply(document, []);
return true;
},
safeSetTimeout(func, timeout) {
// Legacy function, this is used by the SDL2 port so we need to keep it
// around at least until that is updated.
// See https://github.com/libsdl-org/SDL/pull/6304
return safeSetTimeout(func, timeout);
},
getMimetype(name) {
return {
"jpg": "image/jpeg",
"jpeg": "image/jpeg",
"png": "image/png",
"bmp": "image/bmp",
"ogg": "audio/ogg",
"wav": "audio/wav",
"mp3": "audio/mpeg"
}[name.slice(name.lastIndexOf(".") + 1)];
},
getUserMedia(func) {
window.getUserMedia ||= navigator["getUserMedia"] || navigator["mozGetUserMedia"];
window.getUserMedia(func);
},
getMovementX(event) {
return event["movementX"] || event["mozMovementX"] || event["webkitMovementX"] || 0;
},
getMovementY(event) {
return event["movementY"] || event["mozMovementY"] || event["webkitMovementY"] || 0;
},
getMouseWheelDelta(event) {
var delta = 0;
switch (event.type) {
case "DOMMouseScroll":
// 3 lines make up a step
delta = event.detail / 3;
break;
case "mousewheel":
// 120 units make up a step
delta = event.wheelDelta / 120;
break;
case "wheel":
delta = event.deltaY;
switch (event.deltaMode) {
case 0:
// DOM_DELTA_PIXEL: 100 pixels make up a step
delta /= 100;
break;
case 1:
// DOM_DELTA_LINE: 3 lines make up a step
delta /= 3;
break;
case 2:
// DOM_DELTA_PAGE: A page makes up 80 steps
delta *= 80;
break;
default:
abort("unrecognized mouse wheel delta mode: " + event.deltaMode);
}
break;
default:
abort("unrecognized mouse wheel event: " + event.type);
}
return delta;
},
mouseX: 0,
mouseY: 0,
mouseMovementX: 0,
mouseMovementY: 0,
touches: {},
lastTouches: {},
calculateMouseCoords(pageX, pageY) {
// Calculate the movement based on the changes
// in the coordinates.
var canvas = Browser.getCanvas();
var rect = canvas.getBoundingClientRect();
var adjustedX = pageX - (window.scrollX + rect.left);
var adjustedY = pageY - (window.scrollY + rect.top);
// the canvas might be CSS-scaled compared to its backbuffer;
// SDL-using content will want mouse coordinates in terms
// of backbuffer units.
adjustedX = adjustedX * (canvas.width / rect.width);
adjustedY = adjustedY * (canvas.height / rect.height);
return {
x: adjustedX,
y: adjustedY
};
},
setMouseCoords(pageX, pageY) {
const {x, y} = Browser.calculateMouseCoords(pageX, pageY);
Browser.mouseMovementX = x - Browser.mouseX;
Browser.mouseMovementY = y - Browser.mouseY;
Browser.mouseX = x;
Browser.mouseY = y;
},
calculateMouseEvent(event) {
// event should be mousemove, mousedown or mouseup
if (Browser.pointerLock) {
// When the pointer is locked, calculate the coordinates
// based on the movement of the mouse.
// Workaround for Firefox bug 764498
if (event.type != "mousemove" && ("mozMovementX" in event)) {
Browser.mouseMovementX = Browser.mouseMovementY = 0;
} else {
Browser.mouseMovementX = Browser.getMovementX(event);
Browser.mouseMovementY = Browser.getMovementY(event);
}
// add the mouse delta to the current absolute mouse position
Browser.mouseX += Browser.mouseMovementX;
Browser.mouseY += Browser.mouseMovementY;
} else {
if (event.type === "touchstart" || event.type === "touchend" || event.type === "touchmove") {
var touch = event.touch;
if (touch === undefined) {
return;
}
var coords = Browser.calculateMouseCoords(touch.pageX, touch.pageY);
if (event.type === "touchstart") {
Browser.lastTouches[touch.identifier] = coords;
Browser.touches[touch.identifier] = coords;
} else if (event.type === "touchend" || event.type === "touchmove") {
var last = Browser.touches[touch.identifier];
last ||= coords;
Browser.lastTouches[touch.identifier] = last;
Browser.touches[touch.identifier] = coords;
}
return;
}
Browser.setMouseCoords(event.pageX, event.pageY);
}
},
resizeListeners: [],
updateResizeListeners() {
var canvas = Browser.getCanvas();
Browser.resizeListeners.forEach(listener => listener(canvas.width, canvas.height));
},
setCanvasSize(width, height, noUpdates) {
var canvas = Browser.getCanvas();
Browser.updateCanvasDimensions(canvas, width, height);
if (!noUpdates) Browser.updateResizeListeners();
},
windowedWidth: 0,
windowedHeight: 0,
setFullscreenCanvasSize() {
// check if SDL is available
if (typeof SDL != "undefined") {
var flags = HEAPU32[((SDL.screen) >> 2)];
flags = flags | 8388608;
// set SDL_FULLSCREEN flag
HEAP32[((SDL.screen) >> 2)] = flags;
}
Browser.updateCanvasDimensions(Browser.getCanvas());
Browser.updateResizeListeners();
},
setWindowedCanvasSize() {
// check if SDL is available
if (typeof SDL != "undefined") {
var flags = HEAPU32[((SDL.screen) >> 2)];
flags = flags & ~8388608;
// clear SDL_FULLSCREEN flag
HEAP32[((SDL.screen) >> 2)] = flags;
}
Browser.updateCanvasDimensions(Browser.getCanvas());
Browser.updateResizeListeners();
},
updateCanvasDimensions(canvas, wNative, hNative) {
if (wNative && hNative) {
canvas.widthNative = wNative;
canvas.heightNative = hNative;
} else {
wNative = canvas.widthNative;
hNative = canvas.heightNative;
}
var w = wNative;
var h = hNative;
if (Module["forcedAspectRatio"] > 0) {
if (w / h < Module["forcedAspectRatio"]) {
w = Math.round(h * Module["forcedAspectRatio"]);
} else {
h = Math.round(w / Module["forcedAspectRatio"]);
}
}
if ((getFullscreenElement() === canvas.parentNode) && (typeof screen != "undefined")) {
var factor = Math.min(screen.width / w, screen.height / h);
w = Math.round(w * factor);
h = Math.round(h * factor);
}
if (Browser.resizeCanvas) {
if (canvas.width != w) canvas.width = w;
if (canvas.height != h) canvas.height = h;
if (typeof canvas.style != "undefined") {
canvas.style.removeProperty("width");
canvas.style.removeProperty("height");
}
} else {
if (canvas.width != wNative) canvas.width = wNative;
if (canvas.height != hNative) canvas.height = hNative;
if (typeof canvas.style != "undefined") {
if (w != wNative || h != hNative) {
canvas.style.setProperty("width", w + "px", "important");
canvas.style.setProperty("height", h + "px", "important");
} else {
canvas.style.removeProperty("width");
canvas.style.removeProperty("height");
}
}
}
}
};
/** @type {!Int16Array} */ var HEAP16;
/** @type {!Int32Array} */ var HEAP32;
/** @type {!Int8Array} */ var HEAP8;
/** @type {!Float32Array} */ var HEAPF32;
/** @type {!Float64Array} */ var HEAPF64;
/** @type {!Uint16Array} */ var HEAPU16;
/** @type {!Uint32Array} */ var HEAPU32;
/** @type {!Uint8Array} */ var HEAPU8;
var callRuntimeCallbacks = callbacks => {
while (callbacks.length > 0) {
// Pass the module as the first argument.
callbacks.shift()(Module);
}
};
var onPostRuns = [];
var addOnPostRun = cb => onPostRuns.push(cb);
var onPreRuns = [];
var addOnPreRun = cb => onPreRuns.push(cb);
var noExitRuntime = true;
var stackRestore = val => __emscripten_stack_restore(val);
var stackSave = () => _emscripten_stack_get_current();
var PATH = {
isAbs: path => path.charAt(0) === "/",
splitPath: filename => {
var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
return splitPathRe.exec(filename).slice(1);
},
normalizeArray: (parts, allowAboveRoot) => {
// if the path tries to go above the root, `up` ends up > 0
var up = 0;
for (var i = parts.length - 1; i >= 0; i--) {
var last = parts[i];
if (last === ".") {
parts.splice(i, 1);
} else if (last === "..") {
parts.splice(i, 1);
up++;
} else if (up) {
parts.splice(i, 1);
up--;
}
}
// if the path is allowed to go above the root, restore leading ..s
if (allowAboveRoot) {
for (;up; up--) {
parts.unshift("..");
}
}
return parts;
},
normalize: path => {
var isAbsolute = PATH.isAbs(path), trailingSlash = path.slice(-1) === "/";
// Normalize the path
path = PATH.normalizeArray(path.split("/").filter(p => !!p), !isAbsolute).join("/");
if (!path && !isAbsolute) {
path = ".";
}
if (path && trailingSlash) {
path += "/";
}
return (isAbsolute ? "/" : "") + path;
},
dirname: path => {
var result = PATH.splitPath(path), root = result[0], dir = result[1];
if (!root && !dir) {
// No dirname whatsoever
return ".";
}
if (dir) {
// It has a dirname, strip trailing slash
dir = dir.slice(0, -1);
}
return root + dir;
},
basename: path => path && path.match(/([^\/]+|\/)\/*$/)[1],
join: (...paths) => PATH.normalize(paths.join("/")),
join2: (l, r) => PATH.normalize(l + "/" + r)
};
var initRandomFill = () => {
// This block is not needed on v19+ since crypto.getRandomValues is builtin
if (ENVIRONMENT_IS_NODE) {
var nodeCrypto = require("node:crypto");
return view => nodeCrypto.randomFillSync(view);
}
return view => (crypto.getRandomValues(view), 0);
};
var randomFill = view => (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 UTF8Decoder = new TextDecoder;
var findStringEnd = (heapOrArray, idx, maxBytesToRead, ignoreNul) => {
var maxIdx = idx + maxBytesToRead;
if (ignoreNul) return maxIdx;
// TextDecoder needs to know the byte length in advance, it doesn't stop on
// null terminator by itself.
// As a tiny code save trick, compare idx against maxIdx using a negation,
// so that maxBytesToRead=undefined/NaN means Infinity.
while (heapOrArray[idx] && !(idx >= maxIdx)) ++idx;
return idx;
};
/**
* Given a pointer 'idx' to a null-terminated UTF8-encoded string in the given
* array that contains uint8 values, returns a copy of that string as a
* Javascript String object.
* heapOrArray is either a regular array, or a JavaScript typed array view.
* @param {number=} idx
* @param {number=} maxBytesToRead
* @param {boolean=} ignoreNul - If true, the function will not stop on a NUL character.
* @return {string}
*/ var UTF8ArrayToString = (heapOrArray, idx = 0, maxBytesToRead, ignoreNul) => {
var endPtr = findStringEnd(heapOrArray, idx, maxBytesToRead, ignoreNul);
return UTF8Decoder.decode(heapOrArray.buffer ? heapOrArray.subarray(idx, endPtr) : new Uint8Array(heapOrArray.slice(idx, endPtr)));
};
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) => {
// Parameter maxBytesToWrite is not optional. Negative values, 0, null,
// undefined and false each don't write out any bytes.
if (!(maxBytesToWrite > 0)) return 0;
var startIdx = outIdx;
var endIdx = outIdx + maxBytesToWrite - 1;
// -1 for string null terminator.
for (var i = 0; i < str.length; ++i) {
// For UTF8 byte structure, see http://en.wikipedia.org/wiki/UTF-8#Description
// and https://www.ietf.org/rfc/rfc2279.txt
// and https://tools.ietf.org/html/rfc3629
var u = str.codePointAt(i);
if (u <= 127) {
if (outIdx >= endIdx) break;
heap[outIdx++] = u;
} else if (u <= 2047) {
if (outIdx + 1 >= endIdx) break;
heap[outIdx++] = 192 | (u >> 6);
heap[outIdx++] = 128 | (u & 63);
} else if (u <= 65535) {
if (outIdx + 2 >= endIdx) break;
heap[outIdx++] = 224 | (u >> 12);
heap[outIdx++] = 128 | ((u >> 6) & 63);
heap[outIdx++] = 128 | (u & 63);
} else {
if (outIdx + 3 >= endIdx) break;
heap[outIdx++] = 240 | (u >> 18);
heap[outIdx++] = 128 | ((u >> 12) & 63);
heap[outIdx++] = 128 | ((u >> 6) & 63);
heap[outIdx++] = 128 | (u & 63);
// Gotcha: if codePoint is over 0xFFFF, it is represented as a surrogate pair in UTF-16.
// We need to manually skip over the second code unit for correct iteration.
i++;
}
}
// Null-terminate the pointer to the buffer.
heap[outIdx] = 0;
return outIdx - startIdx;
};
/** @type {function(string, boolean=, number=)} */ var intArrayFromString = (stringy, dontAddNull, length) => {
var len = length > 0 ? length : lengthBytesUTF8(stringy) + 1;
var u8array = new Array(len);
var numBytesWritten = stringToUTF8Array(stringy, u8array, 0, u8array.length);
if (dontAddNull) u8array.length = numBytesWritten;
return u8array;
};
var FS_stdin_getChar = () => {
if (!FS_stdin_getChar_buffer.length) {
var result = null;
if (ENVIRONMENT_IS_NODE) {
// we will read data by chunks of BUFSIZE
var BUFSIZE = 256;
var buf = Buffer.alloc(BUFSIZE);
var bytesRead = 0;
// For some reason we must suppress a closure warning here, even though
// fd definitely exists on process.stdin, and is even the proper way to
// get the fd of stdin,
// https://github.com/nodejs/help/issues/2136#issuecomment-523649904
// This started to happen after moving this logic out of library_tty.js,
// so it is related to the surrounding code in some unclear manner.
/** @suppress {missingProperties} */ var fd = process.stdin.fd;
try {
bytesRead = fs.readSync(fd, buf, 0, BUFSIZE);
} catch (e) {
// Cross-platform differences: on Windows, reading EOF throws an
// exception, but on other OSes, reading EOF returns 0. Uniformize
// behavior by treating the EOF exception to return 0.
if (e.toString().includes("EOF")) bytesRead = 0; else throw e;
}
if (bytesRead > 0) {
result = buf.slice(0, bytesRead).toString("utf-8");
}
} else if (globalThis.window?.prompt) {
// Browser.
result = window.prompt("Input: ");
// returns null on cancel
if (result !== null) {
result += "\n";
}
} else {}
if (!result) {
return null;
}
FS_stdin_getChar_buffer = intArrayFromString(result, true);
}
return FS_stdin_getChar_buffer.shift();
};
var TTY = {
ttys: [],
init() {},
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) => HEAPU8.fill(0, ptr, ptr + size);
var alignMemory = (size, alignment) => 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)) {
// not supported
throw new FS.ErrnoError(63);
}
MEMFS.ops_table ||= {
dir: {
node: {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr,
lookup: MEMFS.node_ops.lookup,
mknod: MEMFS.node_ops.mknod,
rename: MEMFS.node_ops.rename,
unlink: MEMFS.node_ops.unlink,
rmdir: MEMFS.node_ops.rmdir,
readdir: MEMFS.node_ops.readdir,
symlink: MEMFS.node_ops.symlink
},
stream: {
llseek: MEMFS.stream_ops.llseek
}
},
file: {
node: {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr
},
stream: {
llseek: MEMFS.stream_ops.llseek,
read: MEMFS.stream_ops.read,
write: MEMFS.stream_ops.write,
mmap: MEMFS.stream_ops.mmap,
msync: MEMFS.stream_ops.msync
}
},
link: {
node: {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr,
readlink: MEMFS.node_ops.readlink
},
stream: {}
},
chrdev: {
node: {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr
},
stream: FS.chrdev_stream_ops
}
};
var node = FS.createNode(parent, name, mode, dev);
if (FS.isDir(node.mode)) {
node.node_ops = MEMFS.ops_table.dir.node;
node.stream_ops = MEMFS.ops_table.dir.stream;
node.contents = {};
} else if (FS.isFile(node.mode)) {
node.node_ops = MEMFS.ops_table.file.node;
node.stream_ops = MEMFS.ops_table.file.stream;
// The actual number of bytes used in the typed array, as opposed to
// contents.length which gives the whole capacity.
node.usedBytes = 0;
// The byte data of the file is stored in a typed array.
// Note: typed arrays are not resizable like normal JS arrays are, so
// there is a small penalty involved for appending file writes that
// continuously grow a file similar to std::vector capacity vs used.
node.contents = MEMFS.emptyFileContents ??= new Uint8Array(0);
} else if (FS.isLink(node.mode)) {
node.node_ops = MEMFS.ops_table.link.node;
node.stream_ops = MEMFS.ops_table.link.stream;
} else if (FS.isChrdev(node.mode)) {
node.node_ops = MEMFS.ops_table.chrdev.node;
node.stream_ops = MEMFS.ops_table.chrdev.stream;
}
node.atime = node.mtime = node.ctime = Date.now();
// add the new node to the parent
if (parent) {
parent.contents[name] = node;
parent.atime = parent.mtime = parent.ctime = node.atime;
}
return node;
},
getFileDataAsTypedArray(node) {
return node.contents.subarray(0, node.usedBytes);
},
expandFileStorage(node, newCapacity) {
var prevCapacity = node.contents.length;
if (prevCapacity >= newCapacity) return;
// No need to expand, the storage was already large enough.
// Don't expand strictly to the given requested limit if it's only a very
// small increase, but instead geometrically grow capacity.
// For small filesizes (<1MB), perform size*2 geometric increase, but for
// large sizes, do a much more conservative size*1.125 increase to avoid
// overshooting the allocation cap by a very large margin.
var CAPACITY_DOUBLING_MAX = 1024 * 1024;
newCapacity = Math.max(newCapacity, (prevCapacity * (prevCapacity < CAPACITY_DOUBLING_MAX ? 2 : 1.125)) >>> 0);
if (prevCapacity) newCapacity = Math.max(newCapacity, 256);
// At minimum allocate 256b for each file when expanding.
var oldContents = MEMFS.getFileDataAsTypedArray(node);
node.contents = new Uint8Array(newCapacity);
// Allocate new storage.
node.contents.set(oldContents);
},
resizeFileStorage(node, newSize) {
if (node.usedBytes == newSize) return;
var oldContents = node.contents;
node.contents = new Uint8Array(newSize);
// Allocate new storage.
node.contents.set(oldContents.subarray(0, Math.min(newSize, node.usedBytes)));
// Copy old data over to the new storage.
node.usedBytes = newSize;
},
node_ops: {
getattr(node) {
var attr = {};
// device numbers reuse inode numbers.
attr.dev = FS.isChrdev(node.mode) ? node.id : 1;
attr.ino = node.id;
attr.mode = node.mode;
attr.nlink = 1;
attr.uid = 0;
attr.gid = 0;
attr.rdev = node.rdev;
if (FS.isDir(node.mode)) {
attr.size = 4096;
} else if (FS.isFile(node.mode)) {
attr.size = node.usedBytes;
} else if (FS.isLink(node.mode)) {
attr.size = node.link.length;
} else {
attr.size = 0;
}
attr.atime = new Date(node.atime);
attr.mtime = new Date(node.mtime);
attr.ctime = new Date(node.ctime);
// NOTE: In our implementation, st_blocks = Math.ceil(st_size/st_blksize),
// but this is not required by the standard.
attr.blksize = 4096;
attr.blocks = Math.ceil(attr.size / attr.blksize);
return attr;
},
setattr(node, attr) {
for (const key of [ "mode", "atime", "mtime", "ctime" ]) {
if (attr[key] != null) {
node[key] = attr[key];
}
}
if (attr.size !== undefined) {
MEMFS.resizeFileStorage(node, attr.size);
}
},
lookup(parent, name) {
// This error may happen quite a bit. To avoid overhead we reuse it (and
// suffer a lack of stack info).
if (!MEMFS.doesNotExistError) {
MEMFS.doesNotExistError = new FS.ErrnoError(44);
/** @suppress {checkTypes} */ MEMFS.doesNotExistError.stack = "<generic error, no stack>";
}
throw MEMFS.doesNotExistError;
},
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);
buffer.set(contents.subarray(position, position + size), offset);
return size;
},
write(stream, buffer, offset, length, position, canOwn) {
// If the buffer is located in main memory (HEAP), and if
// memory can grow, we can't hold on to references of the
// memory buffer, as they may get invalidated. That means we
// need to copy its contents.
if (buffer.buffer === HEAP8.buffer) {
canOwn = false;
}
if (!length) return 0;
var node = stream.node;
node.mtime = node.ctime = Date.now();
if (canOwn) {
node.contents = buffer.subarray(offset, offset + length);
node.usedBytes = length;
} else if (node.usedBytes === 0 && position === 0) {
// If this is a simple first write to an empty file, do a fast set since we don't need to care about old data.
node.contents = buffer.slice(offset, offset + length);
node.usedBytes = length;
} else {
MEMFS.expandFileStorage(node, position + length);
// Use typed array write which is available.
node.contents.set(buffer.subarray(offset, offset + length), position);
node.usedBytes = Math.max(node.usedBytes, position + length);
}
return length;
},
llseek(stream, offset, whence) {
var position = offset;
if (whence === 1) {
position += stream.position;
} else if (whence === 2) {
if (FS.isFile(stream.node.mode)) {
position += stream.node.usedBytes;
}
}
if (position < 0) {
throw new FS.ErrnoError(28);
}
return position;
},
mmap(stream, length, position, prot, flags) {
if (!FS.isFile(stream.node.mode)) {
throw new FS.ErrnoError(43);
}
var ptr;
var allocated;
var contents = stream.node.contents;
// Only make a new copy when MAP_PRIVATE is specified.
if (!(flags & 2) && contents.buffer === HEAP8.buffer) {
// We can't emulate MAP_SHARED when the file is not backed by the
// buffer we're mapping to (e.g. the HEAP buffer).
allocated = false;
ptr = contents.byteOffset;
} else {
allocated = true;
ptr = mmapAlloc(length);
if (!ptr) {
throw new FS.ErrnoError(48);
}
if (contents) {
// Try to avoid unnecessary slices.
if (position > 0 || position + length < contents.length) {
if (contents.subarray) {
contents = contents.subarray(position, position + length);
} else {
contents = Array.prototype.slice.call(contents, position, position + length);
}
}
HEAP8.set(contents, ptr);
}
}
return {
ptr,
allocated
};
},
msync(stream, buffer, offset, length, mmapFlags) {
MEMFS.stream_ops.write(stream, buffer, 0, length, offset, false);
// should we check if bytesWritten and length are the same?
return 0;
}
}
};
var FS_modeStringToFlags = str => {
if (typeof str != "string") return str;
var flagModes = {
"r": 0,
"r+": 2,
"w": 512 | 64 | 1,
"w+": 512 | 64 | 2,
"a": 1024 | 64 | 1,
"a+": 1024 | 64 | 2
};
var flags = flagModes[str];
if (typeof flags == "undefined") {
throw new Error(`Unknown file open mode: ${str}`);
}
return flags;
};
var FS_fileDataToTypedArray = data => {
if (typeof data == "string") {
data = intArrayFromString(data, true);
}
if (!data.subarray) {
data = new Uint8Array(data);
}
return data;
};
var FS_getMode = (canRead, canWrite) => {
var mode = 0;
if (canRead) mode |= 292 | 73;
if (canWrite) mode |= 146;
return mode;
};
var asyncLoad = async url => {
var arrayBuffer = await readAsync(url);
return new Uint8Array(arrayBuffer);
};
var FS_createDataFile = (...args) => FS.createDataFile(...args);
var getUniqueRunDependency = id => id;
var runDependencies = 0;
var dependenciesFulfilled = null;
var removeRunDependency = id => {
runDependencies--;
Module["monitorRunDependencies"]?.(runDependencies);
if (runDependencies == 0) {
if (dependenciesFulfilled) {
var callback = dependenciesFulfilled;
dependenciesFulfilled = null;
callback();
}
}
};
var addRunDependency = id => {
runDependencies++;
Module["monitorRunDependencies"]?.(runDependencies);
};
var FS_handledByPreloadPlugin = async (byteArray, fullname) => {
// Ensure plugins are ready.
if (typeof Browser != "undefined") Browser.init();
for (var plugin of preloadPlugins) {
if (plugin["canHandle"](fullname)) {
return plugin["handle"](byteArray, fullname);
}
}
// If no plugin handled this file then return the original/unmodified
// byteArray.
return byteArray;
};
var FS_preloadFile = async (parent, name, url, canRead, canWrite, dontCreateFile, canOwn, preFinish) => {
// TODO we should allow people to just pass in a complete filename instead
// of parent and name being that we just join them anyways
var fullname = name ? PATH_FS.resolve(PATH.join2(parent, name)) : parent;
var dep = getUniqueRunDependency(`cp ${fullname}`);
// might have several active requests for the same fullname
addRunDependency(dep);
try {
var byteArray = url;
if (typeof url == "string") {
byteArray = await asyncLoad(url);
}
byteArray = await FS_handledByPreloadPlugin(byteArray, fullname);
preFinish?.();
if (!dontCreateFile) {
FS_createDataFile(parent, name, byteArray, canRead, canWrite, canOwn);
}
} finally {
removeRunDependency(dep);
}
};
var FS_createPreloadedFile = (parent, name, url, canRead, canWrite, onload, onerror, dontCreateFile, canOwn, preFinish) => {
FS_preloadFile(parent, name, url, canRead, canWrite, dontCreateFile, canOwn, preFinish).then(onload).catch(onerror);
};
var FS = {
root: null,
mounts: [],
devices: {},
streams: [],
nextInode: 1,
nameTable: null,
currentPath: "/",
initialized: false,
ignorePermissions: true,
filesystems: null,
syncFSRequests: 0,
ErrnoError: class {
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) {
this.errno = errno;
}
},
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 SYMLOOP_MAX.
linkloop: for (var nlinks = 0; nlinks < 40; nlinks++) {
// split the absolute path
var parts = path.split("/").filter(p => !!p);
// start at the root
var current = FS.root;
var current_path = "/";
for (var i = 0; i < parts.length; i++) {
var islast = (i === parts.length - 1);
if (islast && opts.parent) {
// stop resolving
break;
}
if (parts[i] === ".") {
continue;
}
if (parts[i] === "..") {
current_path = PATH.dirname(current_path);
if (FS.isRoot(current)) {
path = current_path + "/" + parts.slice(i + 1).join("/");
// We're making progress here, don't let many consecutive ..'s
// lead to ELOOP
nlinks--;
continue linkloop;
} else {
current = current.parent;
}
continue;
}
current_path = PATH.join2(current_path, parts[i]);
try {
current = FS.lookupNode(current, parts[i]);
} catch (e) {
// if noent_okay is true, suppress a ENOENT in the last component
// and return an object with an undefined node. This is needed for
// resolving symlinks in the path when creating a file.
if ((e?.errno === 44) && islast && opts.noent_okay) {
return {
path: current_path
};
}
throw e;
}
// jump to the mount's root node if this is a mountpoint
if (FS.isMountpoint(current) && (!islast || opts.follow_mount)) {
current = current.mounted.root;
}
// by default, lookupPath will not follow a symlink if it is the final path component.
// setting opts.follow = true will override this behavior.
if (FS.isLink(current.mode) && (!islast || opts.follow)) {
if (!current.node_ops.readlink) {
throw new FS.ErrnoError(52);
}
var link = current.node_ops.readlink(current);
if (!PATH.isAbs(link)) {
link = PATH.dirname(current_path) + "/" + link;
}
path = link + "/" + parts.slice(i + 1).join("/");
continue linkloop;
}
}
return {
path: current_path,
node: current
};
}
throw new FS.ErrnoError(32);
},
getPath(node) {
var path;
while (true) {
if (FS.isRoot(node)) {
var mount = node.mount.mountpoint;
if (!path) return mount;
return mount[mount.length - 1] !== "/" ? `${mount}/${path}` : mount + path;
}
path = path ? `${node.name}/${path}` : node.name;
node = node.parent;
}
},
hashName(parentid, name) {
var hash = 0;
for (var i = 0; i < name.length; i++) {
hash = ((hash << 5) - hash + name.charCodeAt(i)) | 0;
}
return ((parentid + hash) >>> 0) % FS.nameTable.length;
},
hashAddNode(node) {
var hash = FS.hashName(node.parent.id, node.name);
node.name_next = FS.nameTable[hash];
FS.nameTable[hash] = node;
},
hashRemoveNode(node) {
var hash = FS.hashName(node.parent.id, node.name);
if (FS.nameTable[hash] === node) {
FS.nameTable[hash] = node.name_next;
} else {
var current = FS.nameTable[hash];
while (current) {
if (current.name_next === node) {
current.name_next = node.name_next;
break;
}
current = current.name_next;
}
}
},
lookupNode(parent, name) {
var errCode = FS.mayLookup(parent);
if (errCode) {
throw new FS.ErrnoError(errCode);
}
var hash = FS.hashName(parent.id, name);
for (var node = FS.nameTable[hash]; node; node = node.name_next) {
var nodeName = node.name;
if (node.parent.id === parent.id && nodeName === name) {
return node;
}
}
// if we failed to find it in the cache, call into the VFS
return FS.lookup(parent, name);
},
createNode(parent, name, mode, rdev) {
var node = new FS.FSNode(parent, name, mode, rdev);
FS.hashAddNode(node);
return node;
},
destroyNode(node) {
FS.hashRemoveNode(node);
},
isRoot(node) {
return node === node.parent;
},
isMountpoint(node) {
return !!node.mounted;
},
isFile(mode) {
return (mode & 61440) === 32768;
},
isDir(mode) {
return (mode & 61440) === 16384;
},
isLink(mode) {
return (mode & 61440) === 40960;
},
isChrdev(mode) {
return (mode & 61440) === 8192;
},
isBlkdev(mode) {
return (mode & 61440) === 24576;
},
isFIFO(mode) {
return (mode & 61440) === 4096;
},
isSocket(mode) {
return (mode & 49152) === 49152;
},
flagsToPermissionString(flag) {
var perms = [ "r", "w", "rw" ][flag & 3];
if ((flag & 512)) {
perms += "w";
}
return perms;
},
nodePermissions(node, perms) {
if (FS.ignorePermissions) {
return 0;
}
// return 0 if any user, group or owner bits are set.
if (perms.includes("r") && !(node.mode & 292)) {
return 2;
}
if (perms.includes("w") && !(node.mode & 146)) {
return 2;
}
if (perms.includes("x") && !(node.mode & 73)) {
return 2;
}
return 0;
},
mayLookup(dir) {
if (!FS.isDir(dir.mode)) return 54;
var errCode = FS.nodePermissions(dir, "x");
if (errCode) return errCode;
if (!dir.node_ops.lookup) return 2;
return 0;
},
mayCreate(dir, name) {
if (!FS.isDir(dir.mode)) {
return 54;
}
try {
var node = FS.lookupNode(dir, name);
return 20;
} catch (e) {}
return FS.nodePermissions(dir, "wx");
},
mayDelete(dir, name, isdir) {
var node;
try {
node = FS.lookupNode(dir, name);
} catch (e) {
return e.errno;
}
var errCode = FS.nodePermissions(dir, "wx");
if (errCode) {
return errCode;
}
if (isdir) {
if (!FS.isDir(node.mode)) {
return 54;
}
if (FS.isRoot(node) || FS.getPath(node) === FS.cwd()) {
return 10;
}
} else if (FS.isDir(node.mode)) {
return 31;
}
return 0;
},
mayOpen(node, flags) {
if (!node) {
return 44;
}
if (FS.isLink(node.mode)) {
return 32;
}
var mode = FS.flagsToPermissionString(flags);
if (FS.isDir(node.mode)) {
// opening for write
// TODO: check for O_SEARCH? (== search for dir only)
if (mode !== "r" || (flags & (512 | 64))) {
return 31;
}
}
return FS.nodePermissions(node, mode);
},
checkOpExists(op, err) {
if (!op) {
throw new FS.ErrnoError(err);
}
return op;
},
MAX_OPEN_FDS: 4096,
nextfd() {
for (var fd = 0; fd <= FS.MAX_OPEN_FDS; fd++) {
if (!FS.streams[fd]) {
return fd;
}
}
throw new FS.ErrnoError(33);
},
getStreamChecked(fd) {
var stream = FS.getStream(fd);
if (!stream) {
throw new FS.ErrnoError(8);
}
return stream;
},
getStream: fd => FS.streams[fd],
createStream(stream, fd = -1) {
// 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);
try {
setattr(arg, attr);
} catch (e) {
if (e instanceof RangeError) {
throw new FS.ErrnoError(22);
}
throw e;
}
},
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) {
FS.syncFSRequests--;
return callback(errCode);
}
function done(errCode) {
if (errCode) {
if (!done.errored) {
done.errored = true;
return doCallback(errCode);
}
return;
}
if (++completed >= mounts.length) {
doCallback(null);
}
}
// sync all mounts
for (var mount of mounts) {
if (mount.type.syncfs) {
mount.type.syncfs(mount, populate, done);
} else {
done(null);
}
}
},
mount(type, opts, mountpoint) {
var root = mountpoint === "/";
var pseudo = !mountpoint;
var node;
if (root && FS.root) {
throw new FS.ErrnoError(10);
} else if (!root && !pseudo) {
var lookup = FS.lookupPath(mountpoint, {
follow_mount: false
});
mountpoint = lookup.path;
// use the absolute path
node = lookup.node;
if (FS.isMountpoint(node)) {
throw new FS.ErrnoError(10);
}
if (!FS.isDir(node.mode)) {
throw new FS.ErrnoError(54);
}
}
var mount = {
type,
opts,
mountpoint,
mounts: []
};
// create a root node for the fs
var mountRoot = type.mount(mount);
mountRoot.mount = mount;
mount.root = mountRoot;
if (root) {
FS.root = mountRoot;
} else if (node) {
// set as a mountpoint
node.mounted = mount;
// add the new mount to the current mount's children
if (node.mount) {
node.mount.mounts.push(mount);
}
}
return mountRoot;
},
unmount(mountpoint) {
var lookup = FS.lookupPath(mountpoint, {
follow_mount: false
});
if (!FS.isMountpoint(lookup.node)) {
throw new FS.ErrnoError(28);
}
// destroy the nodes for this mount, and all its child mounts
var node = lookup.node;
var mount = node.mounted;
var mounts = FS.getMounts(mount);
for (var [hash, current] of Object.entries(FS.nameTable)) {
while (current) {
var next = current.name_next;
if (mounts.includes(current.mount)) {
FS.destroyNode(current);
}
current = next;
}
}
// no longer a mountpoint
node.mounted = null;
// remove this mount from the child mounts
var idx = node.mount.mounts.indexOf(mount);
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 = FS_modeStringToFlags(flags);
if ((flags & 64)) {
mode = (mode & 4095) | 32768;
} else {
mode = 0;
}
var node;
var isDirPath;
if (typeof path == "object") {
node = path;
} else {
isDirPath = path.endsWith("/");
// noent_okay makes it so that if the final component of the path
// doesn't exist, lookupPath returns `node: undefined`. `path` will be
// updated to point to the target of all symlinks.
var lookup = FS.lookupPath(path, {
follow: !(flags & 131072),
noent_okay: true
});
node = lookup.node;
path = lookup.path;
}
// perhaps we need to create the node
var created = false;
if ((flags & 64)) {
if (node) {
// if O_CREAT and O_EXCL are set, error out if the node already exists
if ((flags & 128)) {
throw new FS.ErrnoError(20);
}
} else if (isDirPath) {
throw new FS.ErrnoError(31);
} else {
// node doesn't exist, try to create it
// Ignore the permission bits here to ensure we can `open` this new
// file below. We use chmod below to apply the permissions once the
// file is open.
node = FS.mknod(path, mode | 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);
}
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) {
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) {
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) {
if (!stream.stream_ops.msync) {
return 0;
}
return stream.stream_ops.msync(stream, buffer, offset, length, mmapFlags);
},
ioctl(stream, cmd, arg) {
if (!stream.stream_ops.ioctl) {
throw new FS.ErrnoError(59);
}
return stream.stream_ops.ioctl(stream, cmd, arg);
},
readFile(path, opts = {}) {
opts.flags = opts.flags ?? 0;
opts.encoding = opts.encoding ?? "binary";
if (opts.encoding !== "utf8" && opts.encoding !== "binary") {
abort(`Invalid encoding type "${opts.encoding}"`);
}
var stream = FS.open(path, opts.flags);
var stat = FS.stat(path);
var length = stat.size;
var buf = new Uint8Array(length);
FS.read(stream, buf, 0, length, 0);
if (opts.encoding === "utf8") {
buf = UTF8ArrayToString(buf);
}
FS.close(stream);
return buf;
},
writeFile(path, data, opts = {}) {
opts.flags = opts.flags ?? 577;
var stream = FS.open(path, opts.flags, opts.mode);
data = FS_fileDataToTypedArray(data);
FS.write(stream, data, 0, data.byteLength, undefined, opts.canOwn);
FS.close(stream);
},
cwd: () => FS.currentPath,
chdir(path) {
var lookup = FS.lookupPath(path, {
follow: true
});
if (lookup.node === null) {
throw new FS.ErrnoError(44);
}
if (!FS.isDir(lookup.node.mode)) {
throw new FS.ErrnoError(54);
}
var errCode = FS.nodePermissions(lookup.node, "x");
if (errCode) {
throw new FS.ErrnoError(errCode);
}
FS.currentPath = lookup.path;
},
createDefaultDirectories() {
FS.mkdir("/tmp");
FS.mkdir("/home");
FS.mkdir("/home/web_user");
},
createDefaultDevices() {
// create /dev
FS.mkdir("/dev");
// setup /dev/null
FS.registerDevice(FS.makedev(1, 3), {
read: () => 0,
write: (stream, buffer, offset, length, pos) => length,
llseek: () => 0
});
FS.mkdev("/dev/null", FS.makedev(1, 3));
// setup /dev/tty and /dev/tty1
// stderr needs to print output using err() rather than out()
// so we register a second tty just for it.
TTY.register(FS.makedev(5, 0), TTY.default_tty_ops);
TTY.register(FS.makedev(6, 0), TTY.default_tty1_ops);
FS.mkdev("/dev/tty", FS.makedev(5, 0));
FS.mkdev("/dev/tty1", FS.makedev(6, 0));
// setup /dev/[u]random
// use a buffer to avoid overhead of individual crypto calls per byte
var randomBuffer = new Uint8Array(1024), randomLeft = 0;
var randomByte = () => {
if (randomLeft === 0) {
randomFill(randomBuffer);
randomLeft = randomBuffer.byteLength;
}
return randomBuffer[--randomLeft];
};
FS.createDevice("/dev", "random", randomByte);
FS.createDevice("/dev", "urandom", randomByte);
// we're not going to emulate the actual shm device,
// just create the tmp dirs that reside in it commonly
FS.mkdir("/dev/shm");
FS.mkdir("/dev/shm/tmp");
},
createSpecialDirectories() {
// create /proc/self/fd which allows /proc/self/fd/6 => readlink gives the
// name of the stream for fd 6 (see test_unistd_ttyname)
FS.mkdir("/proc");
var proc_self = FS.mkdir("/proc/self");
FS.mkdir("/proc/self/fd");
FS.mount({
mount() {
var node = FS.createNode(proc_self, "fd", 16895, 73);
node.stream_ops = {
llseek: MEMFS.stream_ops.llseek
};
node.node_ops = {
lookup(parent, name) {
var fd = +name;
var stream = FS.getStreamChecked(fd);
var ret = {
parent: null,
mount: {
mountpoint: "fake"
},
node_ops: {
readlink: () => stream.path
},
id: fd + 1
};
ret.parent = ret;
// make it look like a simple root node
return ret;
},
readdir() {
return Array.from(FS.streams.entries()).filter(([k, v]) => v).map(([k, v]) => k.toString());
}
};
return node;
}
}, {}, "/proc/self/fd");
},
createStandardStreams(input, output, error) {
// TODO deprecate the old functionality of a single
// input / output callback and that utilizes FS.createDevice
// and instead require a unique set of stream ops
// by default, we symlink the standard streams to the
// default tty devices. however, if the standard streams
// have been overwritten we create a unique device for
// them instead.
if (input) {
FS.createDevice("/dev", "stdin", input);
} else {
FS.symlink("/dev/tty", "/dev/stdin");
}
if (output) {
FS.createDevice("/dev", "stdout", null, output);
} else {
FS.symlink("/dev/tty", "/dev/stdout");
}
if (error) {
FS.createDevice("/dev", "stderr", null, error);
} else {
FS.symlink("/dev/tty1", "/dev/stderr");
}
// open default streams for the stdin, stdout and stderr devices
var stdin = FS.open("/dev/stdin", 0);
var stdout = FS.open("/dev/stdout", 1);
var stderr = FS.open("/dev/stderr", 1);
},
staticInit() {
FS.nameTable = new Array(4096);
FS.mount(MEMFS, {}, "/");
FS.createDefaultDirectories();
FS.createDefaultDevices();
FS.createSpecialDirectories();
FS.filesystems = {
"MEMFS": MEMFS
};
},
init(input, output, error) {
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
// close all of our streams
for (var stream of FS.streams) {
if (stream) {
FS.close(stream);
}
}
},
findObject(path, dontResolveLastLink) {
var ret = FS.analyzePath(path, dontResolveLastLink);
if (!ret.exists) {
return null;
}
return ret.object;
},
analyzePath(path, dontResolveLastLink) {
// operate from within the context of the symlink's target
try {
var lookup = FS.lookupPath(path, {
follow: !dontResolveLastLink
});
path = lookup.path;
} catch (e) {}
var ret = {
isRoot: false,
exists: false,
error: 0,
name: null,
path: null,
object: null,
parentExists: false,
parentPath: null,
parentObject: null
};
try {
var lookup = FS.lookupPath(path, {
parent: true
});
ret.parentExists = true;
ret.parentPath = lookup.path;
ret.parentObject = lookup.node;
ret.name = PATH.basename(path);
lookup = FS.lookupPath(path, {
follow: !dontResolveLastLink
});
ret.exists = true;
ret.path = lookup.path;
ret.object = lookup.node;
ret.name = lookup.node.name;
ret.isRoot = lookup.path === "/";
} catch (e) {
ret.error = e.errno;
}
return ret;
},
createPath(parent, path, canRead, canWrite) {
parent = typeof parent == "string" ? parent : FS.getPath(parent);
var parts = path.split("/").reverse();
while (parts.length) {
var part = parts.pop();
if (!part) continue;
var current = PATH.join2(parent, part);
try {
FS.mkdir(current);
} catch (e) {
if (e.errno != 20) throw e;
}
parent = current;
}
return current;
},
createFile(parent, name, properties, canRead, canWrite) {
var path = PATH.join2(typeof parent == "string" ? parent : FS.getPath(parent), name);
var mode = FS_getMode(canRead, canWrite);
return FS.create(path, mode);
},
createDataFile(parent, name, data, canRead, canWrite, canOwn) {
var path = name;
if (parent) {
parent = typeof parent == "string" ? parent : FS.getPath(parent);
path = name ? PATH.join2(parent, name) : parent;
}
var mode = FS_getMode(canRead, canWrite);
var node = FS.create(path, mode);
if (data) {
data = FS_fileDataToTypedArray(data);
// make sure we can write to the file
FS.chmod(node, mode | 146);
var stream = FS.open(node, 577);
FS.write(stream, data, 0, data.length, 0, canOwn);
FS.close(stream);
FS.chmod(node, mode);
}
},
createDevice(parent, name, input, output) {
var path = PATH.join2(typeof parent == "string" ? parent : FS.getPath(parent), name);
var mode = FS_getMode(!!input, !!output);
FS.createDevice.major ??= 64;
var dev = FS.makedev(FS.createDevice.major++, 0);
// Create a fake device that a set of stream ops to emulate
// the old behavior.
FS.registerDevice(dev, {
open(stream) {
stream.seekable = false;
},
close(stream) {
// flush any pending line data
if (output?.buffer?.length) {
output(10);
}
},
read(stream, buffer, offset, length, pos) {
var bytesRead = 0;
for (var i = 0; i < length; i++) {
var result;
try {
result = input();
} catch (e) {
throw new FS.ErrnoError(29);
}
if (result === undefined && bytesRead === 0) {
throw new FS.ErrnoError(6);
}
if (result === null || result === undefined) break;
bytesRead++;
buffer[offset + i] = result;
}
if (bytesRead) {
stream.node.atime = Date.now();
}
return bytesRead;
},
write(stream, buffer, offset, length, pos) {
for (var i = 0; i < length; i++) {
try {
output(buffer[offset + i]);
} catch (e) {
throw new FS.ErrnoError(29);
}
}
if (length) {
stream.node.mtime = stream.node.ctime = Date.now();
}
return i;
}
});
return FS.mkdev(path, mode, dev);
},
forceLoadFile(obj) {
if (obj.isDevice || obj.isFolder || obj.link || obj.contents) return true;
if (globalThis.XMLHttpRequest) {
abort("Lazy loading should have been performed (contents set) in createLazyFile, but it was not. Lazy loading only works in web workers. Use --embed-file or --preload-file in emcc on the main thread.");
} else {
// Command-line.
try {
obj.contents = readBinary(obj.url);
} catch (e) {
throw new FS.ErrnoError(29);
}
}
},
createLazyFile(parent, name, url, canRead, canWrite) {
// Lazy chunked Uint8Array (implements get and length from Uint8Array).
// Actual getting is abstracted away for eventual reuse.
class LazyUint8Array {
lengthKnown=false;
chunks=[];
// Loaded chunks. Index is the chunk number
get(idx) {
if (idx > this.length - 1 || idx < 0) {
return undefined;
}
var chunkOffset = idx % this.chunkSize;
var chunkNum = (idx / this.chunkSize) | 0;
return this.getter(chunkNum)[chunkOffset];
}
setDataGetter(getter) {
this.getter = getter;
}
cacheLength() {
// Find length
var xhr = new XMLHttpRequest;
xhr.open("HEAD", url, false);
xhr.send(null);
if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) abort("Couldn't load " + url + ". Status: " + xhr.status);
var datalength = Number(xhr.getResponseHeader("Content-length"));
var header;
var hasByteServing = (header = xhr.getResponseHeader("Accept-Ranges")) && header === "bytes";
var usesGzip = (header = xhr.getResponseHeader("Content-Encoding")) && header === "gzip";
var chunkSize = 1024 * 1024;
// Chunk size in bytes
if (!hasByteServing) chunkSize = datalength;
// Function to get a range from the remote URL.
var doXHR = (from, to) => {
if (from > to) abort(`invalid range (${from}, ${to}) or no bytes requested!`);
if (to > datalength - 1) abort(`only ${datalength} bytes available! programmer error!`);
// TODO: Use mozResponseArrayBuffer, responseStream, etc. if available.
var xhr = new XMLHttpRequest;
xhr.open("GET", url, false);
if (datalength !== chunkSize) xhr.setRequestHeader("Range", "bytes=" + from + "-" + to);
// Some hints to the browser that we want binary data.
xhr.responseType = "arraybuffer";
if (xhr.overrideMimeType) {
xhr.overrideMimeType("text/plain; charset=x-user-defined");
}
xhr.send(null);
if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) abort("Couldn't load " + url + ". Status: " + xhr.status);
if (xhr.response !== undefined) {
return new Uint8Array(/** @type{Array<number>} */ (xhr.response || []));
}
return intArrayFromString(xhr.responseText ?? "", true);
};
var lazyArray = this;
lazyArray.setDataGetter(chunkNum => {
var start = chunkNum * chunkSize;
var end = (chunkNum + 1) * chunkSize - 1;
// including this byte
end = Math.min(end, datalength - 1);
// if datalength-1 is selected, this is the last block
if (typeof lazyArray.chunks[chunkNum] == "undefined") {
lazyArray.chunks[chunkNum] = doXHR(start, end);
}
if (typeof lazyArray.chunks[chunkNum] == "undefined") abort("doXHR failed!");
return lazyArray.chunks[chunkNum];
});
if (usesGzip || !datalength) {
// if the server uses gzip or doesn't supply the length, we have to download the whole file to get the (uncompressed) length
chunkSize = datalength = 1;
// this will force getter(0)/doXHR do download the whole file
datalength = this.getter(0).length;
chunkSize = datalength;
out("LazyFiles on gzip forces download of the whole file when length is accessed");
}
this._length = datalength;
this._chunkSize = chunkSize;
this.lengthKnown = true;
}
get length() {
if (!this.lengthKnown) {
this.cacheLength();
}
return this._length;
}
get chunkSize() {
if (!this.lengthKnown) {
this.cacheLength();
}
return this._chunkSize;
}
}
if (globalThis.XMLHttpRequest) {
if (!ENVIRONMENT_IS_WORKER) abort("Cannot do synchronous binary XHRs outside webworkers in modern browsers. Use --embed-file or --preload-file in emcc");
var lazyArray = new LazyUint8Array;
var properties = {
isDevice: false,
contents: lazyArray
};
} else {
var properties = {
isDevice: false,
url
};
}
var node = FS.createFile(parent, name, properties, canRead, canWrite);
// This is a total hack, but I want to get this lazy file code out of the
// core of MEMFS. If we want to keep this lazy file concept I feel it should
// be its own thin LAZYFS proxying calls to MEMFS.
if (properties.contents) {
node.contents = properties.contents;
} else if (properties.url) {
node.contents = null;
node.url = properties.url;
}
// Add a function that defers querying the file size until it is asked the first time.
Object.defineProperties(node, {
usedBytes: {
get: function() {
return this.contents.length;
}
}
});
// override each stream op with one that tries to force load the lazy file first
var stream_ops = {};
for (const [key, fn] of Object.entries(node.stream_ops)) {
stream_ops[key] = (...args) => {
FS.forceLoadFile(node);
return fn(...args);
};
}
function writeChunks(stream, buffer, offset, length, position) {
var contents = stream.node.contents;
if (position >= contents.length) return 0;
var size = Math.min(contents.length - position, length);
if (contents.slice) {
// normal array
for (var i = 0; i < size; i++) {
buffer[offset + i] = contents[position + i];
}
} else {
for (var i = 0; i < size; i++) {
// LazyUint8Array from sync binary XHR
buffer[offset + i] = contents.get(position + i);
}
}
return size;
}
// use a custom read function
stream_ops.read = (stream, buffer, offset, length, position) => {
FS.forceLoadFile(node);
return writeChunks(stream, buffer, offset, length, position);
};
// use a custom mmap function
stream_ops.mmap = (stream, length, position, prot, flags) => {
FS.forceLoadFile(node);
var ptr = mmapAlloc(length);
if (!ptr) {
throw new FS.ErrnoError(48);
}
writeChunks(stream, HEAP8, ptr, length, position);
return {
ptr,
allocated: true
};
};
node.stream_ops = stream_ops;
return node;
}
};
/**
* Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the
* emscripten HEAP, returns a copy of that string as a Javascript String object.
*
* @param {number} ptr
* @param {number=} maxBytesToRead - An optional length that specifies the
* maximum number of bytes to read. You can omit this parameter to scan the
* string until the first 0 byte. If maxBytesToRead is passed, and the string
* at [ptr, ptr+maxBytesToReadr[ contains a null byte in the middle, then the
* string will cut short at that byte index.
* @param {boolean=} ignoreNul - If true, the function will not stop on a NUL character.
* @return {string}
*/ var UTF8ToString = (ptr, maxBytesToRead, ignoreNul) => {
if (!ptr) return "";
var end = findStringEnd(HEAPU8, ptr, maxBytesToRead, ignoreNul);
return UTF8Decoder.decode(HEAPU8.subarray(ptr, end));
};
var SYSCALLS = {
currentUmask: 18,
calculateAt(dirfd, path, allowEmpty) {
if (PATH.isAbs(path)) {
return path;
}
// relative path
var dir;
if (dirfd === -100) {
dir = FS.cwd();
} else {
var dirstream = SYSCALLS.getStreamFromFD(dirfd);
dir = dirstream.path;
}
if (path.length == 0) {
if (!allowEmpty) {
throw new FS.ErrnoError(44);
}
return dir;
}
return dir + "/" + path;
},
writeStat(buf, stat) {
HEAPU32[((buf) >> 2)] = stat.dev;
HEAPU32[(((buf) + (4)) >> 2)] = stat.mode;
HEAPU32[(((buf) + (8)) >> 2)] = stat.nlink;
HEAPU32[(((buf) + (12)) >> 2)] = stat.uid;
HEAPU32[(((buf) + (16)) >> 2)] = stat.gid;
HEAPU32[(((buf) + (20)) >> 2)] = stat.rdev;
(tempI64 = [ stat.size >>> 0, (tempDouble = stat.size, (+(Math.abs(tempDouble))) >= 1 ? (tempDouble > 0 ? (+(Math.floor((tempDouble) / 4294967296))) >>> 0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble))) >>> 0)) / 4294967296))))) >>> 0) : 0) ],
HEAP32[(((buf) + (24)) >> 2)] = tempI64[0], HEAP32[(((buf) + (28)) >> 2)] = tempI64[1]);
HEAP32[(((buf) + (32)) >> 2)] = 4096;
HEAP32[(((buf) + (36)) >> 2)] = stat.blocks;
var atime = stat.atime.getTime();
var mtime = stat.mtime.getTime();
var ctime = stat.ctime.getTime();
(tempI64 = [ Math.floor(atime / 1e3) >>> 0, (tempDouble = Math.floor(atime / 1e3),
(+(Math.abs(tempDouble))) >= 1 ? (tempDouble > 0 ? (+(Math.floor((tempDouble) / 4294967296))) >>> 0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble))) >>> 0)) / 4294967296))))) >>> 0) : 0) ],
HEAP32[(((buf) + (40)) >> 2)] = tempI64[0], HEAP32[(((buf) + (44)) >> 2)] = tempI64[1]);
HEAPU32[(((buf) + (48)) >> 2)] = (atime % 1e3) * 1e3 * 1e3;
(tempI64 = [ Math.floor(mtime / 1e3) >>> 0, (tempDouble = Math.floor(mtime / 1e3),
(+(Math.abs(tempDouble))) >= 1 ? (tempDouble > 0 ? (+(Math.floor((tempDouble) / 4294967296))) >>> 0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble))) >>> 0)) / 4294967296))))) >>> 0) : 0) ],
HEAP32[(((buf) + (56)) >> 2)] = tempI64[0], HEAP32[(((buf) + (60)) >> 2)] = tempI64[1]);
HEAPU32[(((buf) + (64)) >> 2)] = (mtime % 1e3) * 1e3 * 1e3;
(tempI64 = [ Math.floor(ctime / 1e3) >>> 0, (tempDouble = Math.floor(ctime / 1e3),
(+(Math.abs(tempDouble))) >= 1 ? (tempDouble > 0 ? (+(Math.floor((tempDouble) / 4294967296))) >>> 0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble))) >>> 0)) / 4294967296))))) >>> 0) : 0) ],
HEAP32[(((buf) + (72)) >> 2)] = tempI64[0], HEAP32[(((buf) + (76)) >> 2)] = tempI64[1]);
HEAPU32[(((buf) + (80)) >> 2)] = (ctime % 1e3) * 1e3 * 1e3;
(tempI64 = [ stat.ino >>> 0, (tempDouble = stat.ino, (+(Math.abs(tempDouble))) >= 1 ? (tempDouble > 0 ? (+(Math.floor((tempDouble) / 4294967296))) >>> 0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble))) >>> 0)) / 4294967296))))) >>> 0) : 0) ],
HEAP32[(((buf) + (88)) >> 2)] = tempI64[0], HEAP32[(((buf) + (92)) >> 2)] = tempI64[1]);
return 0;
},
writeStatFs(buf, stats) {
HEAPU32[(((buf) + (4)) >> 2)] = stats.bsize;
HEAPU32[(((buf) + (60)) >> 2)] = stats.bsize;
(tempI64 = [ stats.blocks >>> 0, (tempDouble = stats.blocks, (+(Math.abs(tempDouble))) >= 1 ? (tempDouble > 0 ? (+(Math.floor((tempDouble) / 4294967296))) >>> 0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble))) >>> 0)) / 4294967296))))) >>> 0) : 0) ],
HEAP32[(((buf) + (8)) >> 2)] = tempI64[0], HEAP32[(((buf) + (12)) >> 2)] = tempI64[1]);
(tempI64 = [ stats.bfree >>> 0, (tempDouble = stats.bfree, (+(Math.abs(tempDouble))) >= 1 ? (tempDouble > 0 ? (+(Math.floor((tempDouble) / 4294967296))) >>> 0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble))) >>> 0)) / 4294967296))))) >>> 0) : 0) ],
HEAP32[(((buf) + (16)) >> 2)] = tempI64[0], HEAP32[(((buf) + (20)) >> 2)] = tempI64[1]);
(tempI64 = [ stats.bavail >>> 0, (tempDouble = stats.bavail, (+(Math.abs(tempDouble))) >= 1 ? (tempDouble > 0 ? (+(Math.floor((tempDouble) / 4294967296))) >>> 0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble))) >>> 0)) / 4294967296))))) >>> 0) : 0) ],
HEAP32[(((buf) + (24)) >> 2)] = tempI64[0], HEAP32[(((buf) + (28)) >> 2)] = tempI64[1]);
(tempI64 = [ stats.files >>> 0, (tempDouble = stats.files, (+(Math.abs(tempDouble))) >= 1 ? (tempDouble > 0 ? (+(Math.floor((tempDouble) / 4294967296))) >>> 0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble))) >>> 0)) / 4294967296))))) >>> 0) : 0) ],
HEAP32[(((buf) + (32)) >> 2)] = tempI64[0], HEAP32[(((buf) + (36)) >> 2)] = tempI64[1]);
(tempI64 = [ stats.ffree >>> 0, (tempDouble = stats.ffree, (+(Math.abs(tempDouble))) >= 1 ? (tempDouble > 0 ? (+(Math.floor((tempDouble) / 4294967296))) >>> 0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble))) >>> 0)) / 4294967296))))) >>> 0) : 0) ],
HEAP32[(((buf) + (40)) >> 2)] = tempI64[0], HEAP32[(((buf) + (44)) >> 2)] = tempI64[1]);
HEAPU32[(((buf) + (48)) >> 2)] = stats.fsid;
HEAPU32[(((buf) + (64)) >> 2)] = stats.flags;
// ST_NOSUID
HEAPU32[(((buf) + (56)) >> 2)] = stats.namelen;
},
doMsync(addr, stream, len, flags, offset) {
if (!FS.isFile(stream.node.mode)) {
throw new FS.ErrnoError(43);
}
if (flags & 2) {
// MAP_PRIVATE calls need not to be synced back to underlying fs
return 0;
}
var buffer = HEAPU8.slice(addr, addr + len);
FS.msync(stream, buffer, offset, len, flags);
},
getStreamFromFD(fd) {
var stream = FS.getStreamChecked(fd);
return stream;
},
varargs: undefined,
getStr(ptr) {
var ret = UTF8ToString(ptr);
return ret;
}
};
function ___syscall_dup(fd) {
try {
var old = SYSCALLS.getStreamFromFD(fd);
return FS.dupStream(old).fd;
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return -e.errno;
}
}
function ___syscall_faccessat(dirfd, path, amode, flags) {
try {
path = SYSCALLS.getStr(path);
path = SYSCALLS.calculateAt(dirfd, path);
if (amode & ~7) {
// need a valid mode
return -28;
}
var lookup = FS.lookupPath(path, {
follow: true
});
var node = lookup.node;
if (!node) {
return -44;
}
var perms = "";
if (amode & 4) perms += "r";
if (amode & 2) perms += "w";
if (amode & 1) perms += "x";
if (perms && FS.nodePermissions(node, perms)) {
return -2;
}
return 0;
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return -e.errno;
}
}
var syscallGetVarargI = () => {
// the `+` prepended here is necessary to convince the JSCompiler that varargs is indeed a number.
var ret = HEAP32[((+SYSCALLS.varargs) >> 2)];
SYSCALLS.varargs += 4;
return ret;
};
var syscallGetVarargP = syscallGetVarargI;
function ___syscall_fcntl64(fd, cmd, varargs) {
SYSCALLS.varargs = varargs;
try {
var stream = SYSCALLS.getStreamFromFD(fd);
switch (cmd) {
case 0:
{
var arg = syscallGetVarargI();
if (arg < 0) {
return -28;
}
while (FS.streams[arg]) {
arg++;
}
var newStream;
newStream = FS.dupStream(stream, arg);
return newStream.fd;
}
case 1:
case 2:
return 0;
// FD_CLOEXEC makes no sense for a single process.
case 3:
return stream.flags;
case 4:
{
var arg = syscallGetVarargI();
var mask = 289792;
stream.flags = (stream.flags & ~mask) | (arg & mask);
return 0;
}
case 12:
{
var arg = syscallGetVarargP();
var offset = 0;
// We're always unlocked.
HEAP16[(((arg) + (offset)) >> 1)] = 2;
return 0;
}
case 13:
case 14:
// Pretend that the locking is successful. These are process-level locks,
// and Emscripten programs are a single process. If we supported linking a
// filesystem between programs, we'd need to do more here.
// See https://github.com/emscripten-core/emscripten/issues/23697
return 0;
}
return -28;
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return -e.errno;
}
}
function ___syscall_fstat64(fd, buf) {
try {
return SYSCALLS.writeStat(buf, FS.fstat(fd));
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return -e.errno;
}
}
var convertI32PairToI53Checked = (lo, hi) => ((hi + 2097152) >>> 0 < 4194305 - !!lo) ? (lo >>> 0) + hi * 4294967296 : NaN;
function ___syscall_ftruncate64(fd, length_low, length_high) {
var length = convertI32PairToI53Checked(length_low, length_high);
try {
if (isNaN(length)) return -22;
FS.ftruncate(fd, length);
return 0;
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return -e.errno;
}
}
function ___syscall_ioctl(fd, op, varargs) {
SYSCALLS.varargs = varargs;
try {
var stream = SYSCALLS.getStreamFromFD(fd);
switch (op) {
case 21509:
{
if (!stream.tty) return -59;
return 0;
}
case 21505:
{
if (!stream.tty) return -59;
if (stream.tty.ops.ioctl_tcgets) {
var termios = stream.tty.ops.ioctl_tcgets(stream);
var argp = syscallGetVarargP();
HEAP32[((argp) >> 2)] = termios.c_iflag || 0;
HEAP32[(((argp) + (4)) >> 2)] = termios.c_oflag || 0;
HEAP32[(((argp) + (8)) >> 2)] = termios.c_cflag || 0;
HEAP32[(((argp) + (12)) >> 2)] = termios.c_lflag || 0;
for (var i = 0; i < 32; i++) {
HEAP8[(argp + i) + (17)] = termios.c_cc[i] || 0;
}
return 0;
}
return 0;
}
case 21510:
case 21511:
case 21512:
{
if (!stream.tty) return -59;
return 0;
}
case 21506:
case 21507:
case 21508:
{
if (!stream.tty) return -59;
if (stream.tty.ops.ioctl_tcsets) {
var argp = syscallGetVarargP();
var c_iflag = HEAP32[((argp) >> 2)];
var c_oflag = HEAP32[(((argp) + (4)) >> 2)];
var c_cflag = HEAP32[(((argp) + (8)) >> 2)];
var c_lflag = HEAP32[(((argp) + (12)) >> 2)];
var c_cc = [];
for (var i = 0; i < 32; i++) {
c_cc.push(HEAP8[(argp + i) + (17)]);
}
return stream.tty.ops.ioctl_tcsets(stream.tty, op, {
c_iflag,
c_oflag,
c_cflag,
c_lflag,
c_cc
});
}
return 0;
}
case 21519:
{
if (!stream.tty) return -59;
var argp = syscallGetVarargP();
HEAP32[((argp) >> 2)] = 0;
return 0;
}
case 21520:
{
if (!stream.tty) return -59;
return -28;
}
case 21537:
case 21531:
{
var argp = syscallGetVarargP();
return FS.ioctl(stream, op, argp);
}
case 21523:
{
// TODO: in theory we should write to the winsize struct that gets
// passed in, but for now musl doesn't read anything on it
if (!stream.tty) return -59;
if (stream.tty.ops.ioctl_tiocgwinsz) {
var winsize = stream.tty.ops.ioctl_tiocgwinsz(stream.tty);
var argp = syscallGetVarargP();
HEAP16[((argp) >> 1)] = winsize[0];
HEAP16[(((argp) + (2)) >> 1)] = winsize[1];
}
return 0;
}
case 21524:
{
// TODO: technically, this ioctl call should change the window size.
// but, since emscripten doesn't have any concept of a terminal window
// yet, we'll just silently throw it away as we do TIOCGWINSZ
if (!stream.tty) return -59;
return 0;
}
case 21515:
{
if (!stream.tty) return -59;
return 0;
}
default:
return -28;
}
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return -e.errno;
}
}
function ___syscall_lstat64(path, buf) {
try {
path = SYSCALLS.getStr(path);
return SYSCALLS.writeStat(buf, FS.lstat(path));
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return -e.errno;
}
}
function ___syscall_newfstatat(dirfd, path, buf, flags) {
try {
path = SYSCALLS.getStr(path);
var nofollow = flags & 256;
var allowEmpty = flags & 4096;
flags = flags & (~6400);
path = SYSCALLS.calculateAt(dirfd, path, allowEmpty);
return SYSCALLS.writeStat(buf, nofollow ? FS.lstat(path) : FS.stat(path));
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return -e.errno;
}
}
function ___syscall_openat(dirfd, path, flags, varargs) {
SYSCALLS.varargs = varargs;
try {
path = SYSCALLS.getStr(path);
path = SYSCALLS.calculateAt(dirfd, path);
var mode = varargs ? syscallGetVarargI() : 0;
if (flags & 64) {
mode &= ~SYSCALLS.currentUmask;
}
return FS.open(path, flags, mode).fd;
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return -e.errno;
}
}
function ___syscall_stat64(path, buf) {
try {
path = SYSCALLS.getStr(path);
return SYSCALLS.writeStat(buf, FS.stat(path));
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return -e.errno;
}
}
var __abort_js = () => abort("");
function __gmtime_js(time_low, time_high, tmPtr) {
var time = convertI32PairToI53Checked(time_low, time_high);
var date = new Date(time * 1e3);
HEAP32[((tmPtr) >> 2)] = date.getUTCSeconds();
HEAP32[(((tmPtr) + (4)) >> 2)] = date.getUTCMinutes();
HEAP32[(((tmPtr) + (8)) >> 2)] = date.getUTCHours();
HEAP32[(((tmPtr) + (12)) >> 2)] = date.getUTCDate();
HEAP32[(((tmPtr) + (16)) >> 2)] = date.getUTCMonth();
HEAP32[(((tmPtr) + (20)) >> 2)] = date.getUTCFullYear() - 1900;
HEAP32[(((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;
HEAP32[(((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_low, time_high, tmPtr) {
var time = convertI32PairToI53Checked(time_low, time_high);
var date = new Date(time * 1e3);
HEAP32[((tmPtr) >> 2)] = date.getSeconds();
HEAP32[(((tmPtr) + (4)) >> 2)] = date.getMinutes();
HEAP32[(((tmPtr) + (8)) >> 2)] = date.getHours();
HEAP32[(((tmPtr) + (12)) >> 2)] = date.getDate();
HEAP32[(((tmPtr) + (16)) >> 2)] = date.getMonth();
HEAP32[(((tmPtr) + (20)) >> 2)] = date.getFullYear() - 1900;
HEAP32[(((tmPtr) + (24)) >> 2)] = date.getDay();
var yday = ydayFromDate(date) | 0;
HEAP32[(((tmPtr) + (28)) >> 2)] = yday;
HEAP32[(((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;
HEAP32[(((tmPtr) + (32)) >> 2)] = dst;
}
var setTempRet0 = val => __emscripten_tempret_set(val);
var __mktime_js = function(tmPtr) {
var ret = (() => {
var date = new Date(HEAP32[(((tmPtr) + (20)) >> 2)] + 1900, HEAP32[(((tmPtr) + (16)) >> 2)], HEAP32[(((tmPtr) + (12)) >> 2)], HEAP32[(((tmPtr) + (8)) >> 2)], HEAP32[(((tmPtr) + (4)) >> 2)], HEAP32[((tmPtr) >> 2)], 0);
if (isNaN(date.getTime())) {
return -1;
}
// 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 = HEAP32[(((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.
HEAP32[(((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);
}
HEAP32[(((tmPtr) + (24)) >> 2)] = date.getDay();
var yday = ydayFromDate(date) | 0;
HEAP32[(((tmPtr) + (28)) >> 2)] = yday;
// To match expected behavior, update fields from date
HEAP32[((tmPtr) >> 2)] = date.getSeconds();
HEAP32[(((tmPtr) + (4)) >> 2)] = date.getMinutes();
HEAP32[(((tmPtr) + (8)) >> 2)] = date.getHours();
HEAP32[(((tmPtr) + (12)) >> 2)] = date.getDate();
HEAP32[(((tmPtr) + (16)) >> 2)] = date.getMonth();
HEAP32[(((tmPtr) + (20)) >> 2)] = date.getYear();
// Return time in seconds
return date.getTime() / 1e3;
})();
return (setTempRet0((tempDouble = ret, (+(Math.abs(tempDouble))) >= 1 ? (tempDouble > 0 ? (+(Math.floor((tempDouble) / 4294967296))) >>> 0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble))) >>> 0)) / 4294967296))))) >>> 0) : 0)),
ret >>> 0);
};
function __mmap_js(len, prot, flags, fd, offset_low, offset_high, allocated, addr) {
var offset = convertI32PairToI53Checked(offset_low, offset_high);
try {
var stream = SYSCALLS.getStreamFromFD(fd);
var res = FS.mmap(stream, len, offset, prot, flags);
var ptr = res.ptr;
HEAP32[((allocated) >> 2)] = res.allocated;
HEAPU32[((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_low, offset_high) {
var offset = convertI32PairToI53Checked(offset_low, offset_high);
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 stringToUTF8 = (str, outPtr, maxBytesToWrite) => stringToUTF8Array(str, HEAPU8, outPtr, maxBytesToWrite);
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
HEAPU32[((timezone) >> 2)] = stdTimezoneOffset * 60;
HEAP32[((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);
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_get_now = () => performance.now();
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_low, ignored_precision_high, ptime) {
var ignored_precision = convertI32PairToI53Checked(ignored_precision_low, ignored_precision_high);
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);
(tempI64 = [ nsec >>> 0, (tempDouble = nsec, (+(Math.abs(tempDouble))) >= 1 ? (tempDouble > 0 ? (+(Math.floor((tempDouble) / 4294967296))) >>> 0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble))) >>> 0)) / 4294967296))))) >>> 0) : 0) ],
HEAP32[((ptime) >> 2)] = tempI64[0], HEAP32[(((ptime) + (4)) >> 2)] = tempI64[1]);
return 0;
}
var readEmAsmArgsArray = [];
var readEmAsmArgs = (sigPtr, buf) => {
readEmAsmArgsArray.length = 0;
var ch;
// Most arguments are i32s, so shift the buffer pointer so it is a plain
// index into HEAP32.
while (ch = HEAPU8[sigPtr++]) {
// Floats are always passed as doubles, so all types except for 'i'
// are 8 bytes and require alignment.
var wide = (ch != 105);
wide &= (ch != 112);
buf += wide && (buf % 8) ? 4 : 0;
readEmAsmArgsArray.push(// Special case for pointers under wasm64 or CAN_ADDRESS_2GB mode.
ch == 112 ? HEAPU32[((buf) >> 2)] : ch == 105 ? HEAP32[((buf) >> 2)] : HEAPF64[((buf) >> 3)]);
buf += wide ? 8 : 4;
}
return readEmAsmArgsArray;
};
var runEmAsmFunction = (code, sigPtr, argbuf) => {
var args = readEmAsmArgs(sigPtr, argbuf);
return ASM_CONSTS[code](...args);
};
var _emscripten_asm_const_int = (code, sigPtr, argbuf) => runEmAsmFunction(code, sigPtr, argbuf);
var _emscripten_errn = (str, len) => err(UTF8ToString(str, len));
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_has_asyncify = () => 0;
var _emscripten_outn = (str, len) => out(UTF8ToString(str, len));
var UNWIND_CACHE = {};
var stringToNewUTF8 = str => {
var size = lengthBytesUTF8(str) + 1;
var ret = _malloc(size);
if (ret) stringToUTF8(str, ret, size);
return ret;
};
/** @returns {number} */ var convertFrameToPC = frame => {
var match;
if (match = /\bwasm-function\[\d+\]:(0x[0-9a-f]+)/.exec(frame)) {
// Wasm engines give the binary offset directly, so we use that as return address
return +match[1];
} else if (match = /:(\d+):\d+(?:\)|$)/.exec(frame)) {
// If we are in js, we can use the js line number as the "return address".
// This should work for wasm2js. We tag the high bit to distinguish this
// from wasm addresses.
return 2147483648 | +match[1];
}
// return 0 if we can't find any
return 0;
};
var saveInUnwindCache = callstack => {
for (var line of callstack) {
var pc = convertFrameToPC(line);
if (pc) {
UNWIND_CACHE[pc] = line;
}
}
};
var jsStackTrace = () => (new Error).stack.toString();
var _emscripten_stack_snapshot = () => {
var callstack = jsStackTrace().split("\n");
if (callstack[0] == "Error") {
callstack.shift();
}
saveInUnwindCache(callstack);
// Caches the stack snapshot so that emscripten_stack_unwind_buffer() can
// unwind from this spot.
UNWIND_CACHE.last_addr = convertFrameToPC(callstack[3]);
UNWIND_CACHE.last_stack = callstack;
return UNWIND_CACHE.last_addr;
};
var _emscripten_pc_get_function = pc => {
var frame = UNWIND_CACHE[pc];
if (!frame) return 0;
var name;
var match;
// First try to match foo.wasm.sym files explcitly. e.g.
// at test_return_address.wasm.main (wasm://wasm/test_return_address.wasm-0012cc2a:wasm-function[26]:0x9f3
// Then match JS symbols which don't include that module name:
// at invokeEntryPoint (.../test_return_address.js:1500:42)
// Finally match firefox format:
// Object._main@http://server.com:4324:12'
if (match = /^\s+at .*\.wasm\.(.*) \(.*\)$/.exec(frame)) {
name = match[1];
} else if (match = /^\s+at (.*) \(.*\)$/.exec(frame)) {
name = match[1];
} else if (match = /^(.+?)@/.exec(frame)) {
name = match[1];
} else {
return 0;
}
_free(_emscripten_pc_get_function.ret ?? 0);
_emscripten_pc_get_function.ret = stringToNewUTF8(name);
return _emscripten_pc_get_function.ret;
};
var growMemory = size => {
var oldHeapSize = wasmMemory.buffer.byteLength;
var pages = ((size - oldHeapSize + 65535) / 65536) | 0;
try {
// round size grow request up to wasm page size (fixed 64KB per spec)
wasmMemory.grow(pages);
// .grow() takes a delta compared to the previous size
updateMemoryViews();
return 1;
} catch (e) {}
};
var _emscripten_resize_heap = requestedSize => {
var oldSize = HEAPU8.length;
// With CAN_ADDRESS_2GB or MEMORY64, pointers are already unsigned.
requestedSize >>>= 0;
// With multithreaded builds, races can happen (another thread might increase the size
// in between), so return a failure, and let the caller retry.
// 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) {
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;
}
}
return false;
};
var _emscripten_stack_unwind_buffer = (addr, buffer, count) => {
var stack;
if (UNWIND_CACHE.last_addr == addr) {
stack = UNWIND_CACHE.last_stack;
} else {
stack = jsStackTrace().split("\n");
if (stack[0] == "Error") {
stack.shift();
}
saveInUnwindCache(stack);
}
var offset = 3;
while (stack[offset] && convertFrameToPC(stack[offset]) != addr) {
++offset;
}
for (var i = 0; i < count && stack[i + offset]; ++i) {
HEAP32[(((buffer) + (i * 4)) >> 2)] = convertFrameToPC(stack[i + offset]);
}
return i;
};
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 registerPreMainLoop = f => {
// Does nothing unless $MainLoop is included/used.
typeof MainLoop != "undefined" && MainLoop.preMainLoop.push(f);
};
var webglBufferSubData = (target, offset, size, data, src = HEAPU8) => {
if (GL.currentContext.version >= 2) {
size && GLctx.bufferSubData(target, offset, src, data, size);
return;
}
GLctx.bufferSubData(target, offset, src.subarray(data, data + size));
};
var GL = {
counter: 1,
buffers: [],
mappedBuffers: {},
programs: [],
framebuffers: [],
renderbuffers: [],
textures: [],
shaders: [],
vaos: [],
contexts: [],
offscreenCanvases: {},
queries: [],
samplers: [],
transformFeedbacks: [],
syncs: [],
byteSizeByTypeRoot: 5120,
byteSizeByType: [ 1, 1, 2, 2, 4, 4, 4, 2, 3, 4, 8 ],
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;
}
// Skip over any non-null elements that might have been created by
// glBindBuffer.
while (table[ret]) {
ret = GL.counter++;
}
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);
}
HEAP32[(((buffers) + (i * 4)) >> 2)] = id;
}
},
MAX_TEMP_BUFFER_SIZE: 2097152,
numTempVertexBuffersPerSize: 64,
log2ceilLookup: i => 32 - Math.clz32(i === 0 ? 0 : i - 1),
generateTempBuffers: (quads, context) => {
var largestIndex = GL.log2ceilLookup(GL.MAX_TEMP_BUFFER_SIZE);
context.tempVertexBufferCounters1 = [];
context.tempVertexBufferCounters2 = [];
context.tempVertexBufferCounters1.length = context.tempVertexBufferCounters2.length = largestIndex + 1;
context.tempVertexBuffers1 = [];
context.tempVertexBuffers2 = [];
context.tempVertexBuffers1.length = context.tempVertexBuffers2.length = largestIndex + 1;
context.tempIndexBuffers = [];
context.tempIndexBuffers.length = largestIndex + 1;
for (var i = 0; i <= largestIndex; ++i) {
context.tempIndexBuffers[i] = null;
// Created on-demand
context.tempVertexBufferCounters1[i] = context.tempVertexBufferCounters2[i] = 0;
var ringbufferLength = GL.numTempVertexBuffersPerSize;
context.tempVertexBuffers1[i] = [];
context.tempVertexBuffers2[i] = [];
var ringbuffer1 = context.tempVertexBuffers1[i];
var ringbuffer2 = context.tempVertexBuffers2[i];
ringbuffer1.length = ringbuffer2.length = ringbufferLength;
for (var j = 0; j < ringbufferLength; ++j) {
ringbuffer1[j] = ringbuffer2[j] = null;
}
}
if (quads) {
// GL_QUAD indexes can be precalculated
context.tempQuadIndexBuffer = GLctx.createBuffer();
context.GLctx.bindBuffer(34963, context.tempQuadIndexBuffer);
var numIndexes = GL.MAX_TEMP_BUFFER_SIZE >> 1;
var quadIndexes = new Uint16Array(numIndexes);
var i = 0, v = 0;
while (1) {
quadIndexes[i++] = v;
if (i >= numIndexes) break;
quadIndexes[i++] = v + 1;
if (i >= numIndexes) break;
quadIndexes[i++] = v + 2;
if (i >= numIndexes) break;
quadIndexes[i++] = v;
if (i >= numIndexes) break;
quadIndexes[i++] = v + 2;
if (i >= numIndexes) break;
quadIndexes[i++] = v + 3;
if (i >= numIndexes) break;
v += 4;
}
context.GLctx.bufferData(34963, quadIndexes, 35044);
context.GLctx.bindBuffer(34963, null);
}
},
getTempVertexBuffer: sizeBytes => {
var idx = GL.log2ceilLookup(sizeBytes);
var ringbuffer = GL.currentContext.tempVertexBuffers1[idx];
var nextFreeBufferIndex = GL.currentContext.tempVertexBufferCounters1[idx];
GL.currentContext.tempVertexBufferCounters1[idx] = (GL.currentContext.tempVertexBufferCounters1[idx] + 1) & (GL.numTempVertexBuffersPerSize - 1);
var vbo = ringbuffer[nextFreeBufferIndex];
if (vbo) {
return vbo;
}
var prevVBO = GLctx.getParameter(34964);
ringbuffer[nextFreeBufferIndex] = GLctx.createBuffer();
GLctx.bindBuffer(34962, ringbuffer[nextFreeBufferIndex]);
GLctx.bufferData(34962, 1 << idx, 35048);
GLctx.bindBuffer(34962, prevVBO);
return ringbuffer[nextFreeBufferIndex];
},
getTempIndexBuffer: sizeBytes => {
var idx = GL.log2ceilLookup(sizeBytes);
var ibo = GL.currentContext.tempIndexBuffers[idx];
if (ibo) {
return ibo;
}
var prevIBO = GLctx.getParameter(34965);
GL.currentContext.tempIndexBuffers[idx] = GLctx.createBuffer();
GLctx.bindBuffer(34963, GL.currentContext.tempIndexBuffers[idx]);
GLctx.bufferData(34963, 1 << idx, 35048);
GLctx.bindBuffer(34963, prevIBO);
return GL.currentContext.tempIndexBuffers[idx];
},
newRenderingFrameStarted: () => {
if (!GL.currentContext) {
return;
}
var vb = GL.currentContext.tempVertexBuffers1;
GL.currentContext.tempVertexBuffers1 = GL.currentContext.tempVertexBuffers2;
GL.currentContext.tempVertexBuffers2 = vb;
vb = GL.currentContext.tempVertexBufferCounters1;
GL.currentContext.tempVertexBufferCounters1 = GL.currentContext.tempVertexBufferCounters2;
GL.currentContext.tempVertexBufferCounters2 = vb;
var largestIndex = GL.log2ceilLookup(GL.MAX_TEMP_BUFFER_SIZE);
for (var i = 0; i <= largestIndex; ++i) {
GL.currentContext.tempVertexBufferCounters1[i] = 0;
}
},
getSource: (shader, count, string, length) => {
var source = "";
for (var i = 0; i < count; ++i) {
var len = length ? HEAPU32[(((length) + (i * 4)) >> 2)] : undefined;
source += UTF8ToString(HEAPU32[(((string) + (i * 4)) >> 2)], len);
}
return source;
},
calcBufLength: (size, type, stride, count) => {
if (stride > 0) {
return count * stride;
}
var typeSize = GL.byteSizeByType[type - GL.byteSizeByTypeRoot];
return size * typeSize * count;
},
usedTempBuffers: [],
preDrawHandleClientVertexAttribBindings: count => {
GL.resetBufferBinding = false;
// TODO: initial pass to detect ranges we need to upload, might not need
// an upload per attrib
for (var i = 0; i < GL.currentContext.maxVertexAttribs; ++i) {
var cb = GL.currentContext.clientBuffers[i];
if (!cb.clientside || !cb.enabled) continue;
GL.resetBufferBinding = true;
var size = GL.calcBufLength(cb.size, cb.type, cb.stride, count);
var buf = GL.getTempVertexBuffer(size);
GLctx.bindBuffer(34962, buf);
webglBufferSubData(34962, 0, size, cb.ptr);
cb.vertexAttribPointerAdaptor.call(GLctx, i, cb.size, cb.type, cb.normalized, cb.stride, 0);
}
},
postDrawHandleClientVertexAttribBindings: () => {
if (GL.resetBufferBinding) {
GLctx.bindBuffer(34962, GL.buffers[GLctx.currentArrayBufferBinding]);
}
},
createContext: (/** @type {HTMLCanvasElement} */ canvas, webGLContextAttributes) => {
// BUG: Workaround Safari WebGL issue: After successfully acquiring WebGL
// context on a canvas, calling .getContext() will always return that
// context independent of which 'webgl' or 'webgl2'
// context version was passed. See:
// https://webkit.org/b/222758
// and:
// https://github.com/emscripten-core/emscripten/issues/13295.
// TODO: Once the bug is fixed and shipped in Safari, adjust the Safari
// version field in above check.
if (!canvas.getContextSafariWebGL2Fixed) {
canvas.getContextSafariWebGL2Fixed = canvas.getContext;
/** @type {function(this:HTMLCanvasElement, string, (Object|null)=): (Object|null)} */ function fixedGetContext(ver, attrs) {
var gl = canvas.getContextSafariWebGL2Fixed(ver, attrs);
return ((ver == "webgl") == (gl instanceof WebGLRenderingContext)) ? gl : null;
}
canvas.getContext = fixedGetContext;
}
var ctx = (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) => {
// without pthreads a context is just an integer ID
var handle = GL.getNewId(GL.contexts);
var context = {
handle,
attributes: webGLContextAttributes,
version: webGLContextAttributes.majorVersion,
GLctx: ctx
};
// Store the created context object so that we can access the context
// given a canvas without having to pass the parameters again.
if (ctx.canvas) ctx.canvas.GLctxObject = context;
GL.contexts[handle] = context;
if (typeof webGLContextAttributes.enableExtensionsByDefault == "undefined" || webGLContextAttributes.enableExtensionsByDefault) {
GL.initExtensions(context);
}
context.maxVertexAttribs = context.GLctx.getParameter(34921);
context.clientBuffers = [];
for (var i = 0; i < context.maxVertexAttribs; i++) {
context.clientBuffers[i] = {
enabled: false,
clientside: false,
size: 0,
type: 0,
normalized: 0,
stride: 0,
ptr: 0,
vertexAttribPointerAdaptor: null
};
}
GL.generateTempBuffers(false, 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;
}
GL.contexts[contextHandle] = null;
},
initExtensions: context => {
// If this function is called without a specific context object, init the
// extensions of the currently active context.
context ||= GL.currentContext;
if (context.initExtensionsDone) return;
context.initExtensionsDone = true;
var GLctx = context.GLctx;
// Detect the presence of a few extensions manually, since the GL interop
// layer itself will need to know if they exist.
// Extensions that are available in both WebGL 1 and WebGL 2
webgl_enable_WEBGL_multi_draw(GLctx);
webgl_enable_EXT_polygon_offset_clamp(GLctx);
webgl_enable_EXT_clip_control(GLctx);
webgl_enable_WEBGL_polygon_mode(GLctx);
// Extensions that are only available in WebGL 1 (the calls will be no-ops
// if called on a WebGL 2 context active)
webgl_enable_ANGLE_instanced_arrays(GLctx);
webgl_enable_OES_vertex_array_object(GLctx);
webgl_enable_WEBGL_draw_buffers(GLctx);
// 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://bugzil.la/1328882
if (context.version < 2 || !GLctx.disjointTimerQueryExt) {
GLctx.disjointTimerQueryExt = GLctx.getExtension("EXT_disjoint_timer_query");
}
for (var ext of getEmscriptenSupportedExtensions(GLctx)) {
// WEBGL_lose_context, WEBGL_debug_renderer_info and WEBGL_debug_shaders
// are not enabled by default.
if (!ext.includes("lose_context") && !ext.includes("debug")) {
// Call .getExtension() to enable that extension permanently.
GLctx.getExtension(ext);
}
}
}
};
var webglPowerPreferences = [ "default", "low-power", "high-performance" ];
/** @type {Object} */ var specialHTMLTargets = [ 0, globalThis.document ?? 0, globalThis.window ?? 0 ];
var findEventTarget = target => {
// The sensible "default" target varies between events, but use window as the default
// since DOM events mostly can default to that. Specific callback registrations
// override their own defaults.
if (!target) return window;
if (typeof target == "number") target = specialHTMLTargets[target] || UTF8ToString(target);
if (target === "#window") return window; else if (target === "#document") return document; else if (target === "#screen") return screen; else if (target === "#canvas") return Module["canvas"]; else if (typeof target == "string") return globalThis.document?.getElementById(target);
return target;
};
var findCanvasEventTarget = target => {
if (typeof target == "number") target = UTF8ToString(target);
if (!target || target === "#canvas") {
if (typeof GL != "undefined" && GL.offscreenCanvases["canvas"]) return GL.offscreenCanvases["canvas"];
// TODO: Remove this line, target '#canvas' should refer only to Module['canvas'], not to GL.offscreenCanvases['canvas'] - but need stricter tests to be able to remove this line.
return Module["canvas"];
}
if (typeof GL != "undefined" && GL.offscreenCanvases[target]) return GL.offscreenCanvases[target];
return findEventTarget(target);
};
var _emscripten_webgl_do_create_context = (target, attributes) => {
var attr32 = ((attributes) >> 2);
var powerPreference = HEAP32[attr32 + (8 >> 2)];
var contextAttributes = {
"alpha": !!HEAP8[attributes + 0],
"depth": !!HEAP8[attributes + 1],
"stencil": !!HEAP8[attributes + 2],
"antialias": !!HEAP8[attributes + 3],
"premultipliedAlpha": !!HEAP8[attributes + 4],
"preserveDrawingBuffer": !!HEAP8[attributes + 5],
"powerPreference": webglPowerPreferences[powerPreference],
"failIfMajorPerformanceCaveat": !!HEAP8[attributes + 12],
// The following are not predefined WebGL context attributes in the WebGL specification, so the property names can be minified by Closure.
majorVersion: HEAP32[attr32 + (16 >> 2)],
minorVersion: HEAP32[attr32 + (20 >> 2)],
enableExtensionsByDefault: HEAP8[attributes + 24],
explicitSwapControl: HEAP8[attributes + 25],
proxyContextToMainThread: HEAP32[attr32 + (28 >> 2)],
renderViaOffscreenBackBuffer: HEAP8[attributes + 32]
};
var canvas = findCanvasEventTarget(target);
if (!canvas) {
return 0;
}
if (contextAttributes.explicitSwapControl) {
return 0;
}
var contextHandle = GL.createContext(canvas, contextAttributes);
return contextHandle;
};
var _emscripten_webgl_create_context = _emscripten_webgl_do_create_context;
var _emscripten_webgl_destroy_context = contextHandle => {
if (GL.currentContext == contextHandle) GL.currentContext = 0;
GL.deleteContext(contextHandle);
};
var _emscripten_webgl_get_context_attributes = (c, a) => {
if (!a) return -5;
c = GL.contexts[c];
if (!c) return -3;
var t = c.GLctx?.getContextAttributes();
if (!t) return -3;
HEAP8[a] = t.alpha;
HEAP8[(a) + (1)] = t.depth;
HEAP8[(a) + (2)] = t.stencil;
HEAP8[(a) + (3)] = t.antialias;
HEAP8[(a) + (4)] = t.premultipliedAlpha;
HEAP8[(a) + (5)] = t.preserveDrawingBuffer;
var power = t["powerPreference"] && webglPowerPreferences.indexOf(t["powerPreference"]);
HEAP32[(((a) + (8)) >> 2)] = power;
HEAP8[(a) + (12)] = t.failIfMajorPerformanceCaveat;
HEAP32[(((a) + (16)) >> 2)] = c.version;
HEAP32[(((a) + (20)) >> 2)] = 0;
HEAP8[(a) + (24)] = c.attributes.enableExtensionsByDefault;
return 0;
};
var _emscripten_webgl_do_get_current_context = () => GL.currentContext ? GL.currentContext.handle : 0;
var _emscripten_webgl_get_current_context = _emscripten_webgl_do_get_current_context;
var _emscripten_webgl_make_context_current = contextHandle => {
var success = GL.makeContextCurrent(contextHandle);
return success ? 0 : -5;
};
var stackAlloc = sz => __emscripten_stack_alloc(sz);
var stringToUTF8OnStack = str => {
var size = lengthBytesUTF8(str) + 1;
var ret = stackAlloc(size);
stringToUTF8(str, ret, size);
return ret;
};
var writeI53ToI64 = (ptr, num) => {
HEAPU32[((ptr) >> 2)] = num;
var lower = HEAPU32[((ptr) >> 2)];
HEAPU32[(((ptr) + (4)) >> 2)] = (num - lower) / 4294967296;
};
var readI53FromI64 = ptr => HEAPU32[((ptr) >> 2)] + HEAP32[(((ptr) + (4)) >> 2)] * 4294967296;
var wasmTableMirror = [];
var getWasmTableEntry = funcPtr => {
var func = wasmTableMirror[funcPtr];
if (!func) {
/** @suppress {checkTypes} */ wasmTableMirror[funcPtr] = func = wasmTable.get(funcPtr);
}
return func;
};
var WebGPU = {
Internals: {
jsObjects: [],
jsObjectInsert: (ptr, jsObject) => {
ptr >>>= 0;
WebGPU.Internals.jsObjects[ptr] = jsObject;
},
bufferOnUnmaps: [],
futures: [],
futureInsert: (futureId, promise) => {}
},
getJsObject: ptr => {
if (!ptr) return undefined;
ptr >>>= 0;
return WebGPU.Internals.jsObjects[ptr];
},
importJsAdapter: (obj, parentPtr = 0) => {
var ptr = _emwgpuCreateAdapter(parentPtr);
WebGPU.Internals.jsObjects[ptr] = obj;
return ptr;
},
importJsBindGroup: (obj, parentPtr = 0) => {
var ptr = _emwgpuCreateBindGroup(parentPtr);
WebGPU.Internals.jsObjects[ptr] = obj;
return ptr;
},
importJsBindGroupLayout: (obj, parentPtr = 0) => {
var ptr = _emwgpuCreateBindGroupLayout(parentPtr);
WebGPU.Internals.jsObjects[ptr] = obj;
return ptr;
},
importJsBuffer: (buffer, parentPtr = 0) => {
// At the moment, we do not allow importing pending buffers.
assert(buffer.mapState === "unmapped");
var bufferPtr = _emwgpuImportBuffer(parentPtr);
WebGPU.Internals.jsObjectInsert(bufferPtr, buffer);
return bufferPtr;
},
importJsCommandBuffer: (obj, parentPtr = 0) => {
var ptr = _emwgpuCreateCommandBuffer(parentPtr);
WebGPU.Internals.jsObjects[ptr] = obj;
return ptr;
},
importJsCommandEncoder: (obj, parentPtr = 0) => {
var ptr = _emwgpuCreateCommandEncoder(parentPtr);
WebGPU.Internals.jsObjects[ptr] = obj;
return ptr;
},
importJsComputePassEncoder: (obj, parentPtr = 0) => {
var ptr = _emwgpuCreateComputePassEncoder(parentPtr);
WebGPU.Internals.jsObjects[ptr] = obj;
return ptr;
},
importJsComputePipeline: (obj, parentPtr = 0) => {
var ptr = _emwgpuCreateComputePipeline(parentPtr);
WebGPU.Internals.jsObjects[ptr] = obj;
return ptr;
},
importJsDevice: (device, parentPtr = 0) => {
var queuePtr = _emwgpuCreateQueue(parentPtr);
var devicePtr = _emwgpuCreateDevice(parentPtr, queuePtr);
WebGPU.Internals.jsObjectInsert(queuePtr, device.queue);
WebGPU.Internals.jsObjectInsert(devicePtr, device);
return devicePtr;
},
importJsExternalTexture: (obj, parentPtr = 0) => {
var ptr = _emwgpuCreateExternalTexture(parentPtr);
WebGPU.Internals.jsObjects[ptr] = obj;
return ptr;
},
importJsPipelineLayout: (obj, parentPtr = 0) => {
var ptr = _emwgpuCreatePipelineLayout(parentPtr);
WebGPU.Internals.jsObjects[ptr] = obj;
return ptr;
},
importJsQuerySet: (obj, parentPtr = 0) => {
var ptr = _emwgpuCreateQuerySet(parentPtr);
WebGPU.Internals.jsObjects[ptr] = obj;
return ptr;
},
importJsQueue: (obj, parentPtr = 0) => {
var ptr = _emwgpuCreateQueue(parentPtr);
WebGPU.Internals.jsObjects[ptr] = obj;
return ptr;
},
importJsRenderBundle: (obj, parentPtr = 0) => {
var ptr = _emwgpuCreateRenderBundle(parentPtr);
WebGPU.Internals.jsObjects[ptr] = obj;
return ptr;
},
importJsRenderBundleEncoder: (obj, parentPtr = 0) => {
var ptr = _emwgpuCreateRenderBundleEncoder(parentPtr);
WebGPU.Internals.jsObjects[ptr] = obj;
return ptr;
},
importJsRenderPassEncoder: (obj, parentPtr = 0) => {
var ptr = _emwgpuCreateRenderPassEncoder(parentPtr);
WebGPU.Internals.jsObjects[ptr] = obj;
return ptr;
},
importJsRenderPipeline: (obj, parentPtr = 0) => {
var ptr = _emwgpuCreateRenderPipeline(parentPtr);
WebGPU.Internals.jsObjects[ptr] = obj;
return ptr;
},
importJsSampler: (obj, parentPtr = 0) => {
var ptr = _emwgpuCreateSampler(parentPtr);
WebGPU.Internals.jsObjects[ptr] = obj;
return ptr;
},
importJsShaderModule: (obj, parentPtr = 0) => {
var ptr = _emwgpuCreateShaderModule(parentPtr);
WebGPU.Internals.jsObjects[ptr] = obj;
return ptr;
},
importJsSurface: (obj, parentPtr = 0) => {
var ptr = _emwgpuCreateSurface(parentPtr);
WebGPU.Internals.jsObjects[ptr] = obj;
return ptr;
},
importJsTexture: (obj, parentPtr = 0) => {
var ptr = _emwgpuCreateTexture(parentPtr);
WebGPU.Internals.jsObjects[ptr] = obj;
return ptr;
},
importJsTextureView: (obj, parentPtr = 0) => {
var ptr = _emwgpuCreateTextureView(parentPtr);
WebGPU.Internals.jsObjects[ptr] = obj;
return ptr;
},
errorCallback: (callback, type, message, userdata) => {
var sp = stackSave();
var messagePtr = stringToUTF8OnStack(message);
getWasmTableEntry(callback)(type, messagePtr, userdata);
stackRestore(sp);
},
iterateExtensions: (root, handlers) => {
for (var ptr = HEAPU32[((root) >> 2)]; ptr; ptr = HEAPU32[((ptr) >> 2)]) {
var sType = HEAP32[(((ptr) + (4)) >> 2)];
// This will crash if there's no handler indicating either a bogus
// sType, or one we haven't implemented yet.
var handler = handlers[sType](ptr);
}
},
setStringView: (ptr, data, length) => {
HEAPU32[((ptr) >> 2)] = data;
HEAPU32[(((ptr) + (4)) >> 2)] = length;
},
makeStringFromStringView: stringViewPtr => {
var ptr = HEAPU32[((stringViewPtr) >> 2)];
var length = HEAPU32[(((stringViewPtr) + (4)) >> 2)];
// UTF8ToString stops at the first null terminator character in the
// string regardless of the length.
return UTF8ToString(ptr, length);
},
makeStringFromOptionalStringView: stringViewPtr => {
var ptr = HEAPU32[((stringViewPtr) >> 2)];
var length = HEAPU32[(((stringViewPtr) + (4)) >> 2)];
// If we don't have a valid string pointer, just return undefined when
// optional.
if (!ptr) {
if (length === 0) {
return "";
}
return undefined;
}
// UTF8ToString stops at the first null terminator character in the
// string regardless of the length.
return UTF8ToString(ptr, length);
},
makeColor: ptr => ({
"r": HEAPF64[((ptr) >> 3)],
"g": HEAPF64[(((ptr) + (8)) >> 3)],
"b": HEAPF64[(((ptr) + (16)) >> 3)],
"a": HEAPF64[(((ptr) + (24)) >> 3)]
}),
makeExtent3D: ptr => ({
"width": HEAPU32[((ptr) >> 2)],
"height": HEAPU32[(((ptr) + (4)) >> 2)],
"depthOrArrayLayers": HEAPU32[(((ptr) + (8)) >> 2)]
}),
makeOrigin3D: ptr => ({
"x": HEAPU32[((ptr) >> 2)],
"y": HEAPU32[(((ptr) + (4)) >> 2)],
"z": HEAPU32[(((ptr) + (8)) >> 2)]
}),
makeTexelCopyTextureInfo: ptr => ({
"texture": WebGPU.getJsObject(HEAPU32[((ptr) >> 2)]),
"mipLevel": HEAPU32[(((ptr) + (4)) >> 2)],
"origin": WebGPU.makeOrigin3D(ptr + 8),
"aspect": WebGPU.TextureAspect[HEAP32[(((ptr) + (20)) >> 2)]]
}),
makeTexelCopyBufferLayout: ptr => {
var bytesPerRow = HEAPU32[(((ptr) + (8)) >> 2)];
var rowsPerImage = HEAPU32[(((ptr) + (12)) >> 2)];
return {
"offset": readI53FromI64(ptr),
"bytesPerRow": bytesPerRow === 4294967295 ? undefined : bytesPerRow,
"rowsPerImage": rowsPerImage === 4294967295 ? undefined : rowsPerImage
};
},
makeTexelCopyBufferInfo: ptr => {
var layoutPtr = ptr + 0;
var bufferCopyView = WebGPU.makeTexelCopyBufferLayout(layoutPtr);
bufferCopyView["buffer"] = WebGPU.getJsObject(HEAPU32[(((ptr) + (16)) >> 2)]);
return bufferCopyView;
},
makePassTimestampWrites: ptr => {
if (ptr === 0) return undefined;
return {
"querySet": WebGPU.getJsObject(HEAPU32[(((ptr) + (4)) >> 2)]),
"beginningOfPassWriteIndex": HEAPU32[(((ptr) + (8)) >> 2)],
"endOfPassWriteIndex": HEAPU32[(((ptr) + (12)) >> 2)]
};
},
makePipelineConstants: (constantCount, constantsPtr) => {
if (!constantCount) return;
var constants = {};
for (var i = 0; i < constantCount; ++i) {
var entryPtr = constantsPtr + 24 * i;
var key = WebGPU.makeStringFromStringView(entryPtr + 4);
constants[key] = HEAPF64[(((entryPtr) + (16)) >> 3)];
}
return constants;
},
makePipelineLayout: layoutPtr => {
if (!layoutPtr) return "auto";
return WebGPU.getJsObject(layoutPtr);
},
makeComputeState: ptr => {
if (!ptr) return undefined;
var desc = {
"module": WebGPU.getJsObject(HEAPU32[(((ptr) + (4)) >> 2)]),
"constants": WebGPU.makePipelineConstants(HEAPU32[(((ptr) + (16)) >> 2)], HEAPU32[(((ptr) + (20)) >> 2)]),
"entryPoint": WebGPU.makeStringFromOptionalStringView(ptr + 8)
};
return desc;
},
makeComputePipelineDesc: descriptor => {
var desc = {
"label": WebGPU.makeStringFromOptionalStringView(descriptor + 4),
"layout": WebGPU.makePipelineLayout(HEAPU32[(((descriptor) + (12)) >> 2)]),
"compute": WebGPU.makeComputeState(descriptor + 16)
};
return desc;
},
makeRenderPipelineDesc: descriptor => {
function makePrimitiveState(psPtr) {
if (!psPtr) return undefined;
return {
"topology": WebGPU.PrimitiveTopology[HEAP32[(((psPtr) + (4)) >> 2)]],
"stripIndexFormat": WebGPU.IndexFormat[HEAP32[(((psPtr) + (8)) >> 2)]],
"frontFace": WebGPU.FrontFace[HEAP32[(((psPtr) + (12)) >> 2)]],
"cullMode": WebGPU.CullMode[HEAP32[(((psPtr) + (16)) >> 2)]],
"unclippedDepth": !!(HEAPU32[(((psPtr) + (20)) >> 2)])
};
}
function makeBlendComponent(bdPtr) {
if (!bdPtr) return undefined;
return {
"operation": WebGPU.BlendOperation[HEAP32[((bdPtr) >> 2)]],
"srcFactor": WebGPU.BlendFactor[HEAP32[(((bdPtr) + (4)) >> 2)]],
"dstFactor": WebGPU.BlendFactor[HEAP32[(((bdPtr) + (8)) >> 2)]]
};
}
function makeBlendState(bsPtr) {
if (!bsPtr) return undefined;
return {
"alpha": makeBlendComponent(bsPtr + 12),
"color": makeBlendComponent(bsPtr + 0)
};
}
function makeColorState(csPtr) {
var format = WebGPU.TextureFormat[HEAP32[(((csPtr) + (4)) >> 2)]];
return format ? {
"format": format,
"blend": makeBlendState(HEAPU32[(((csPtr) + (8)) >> 2)]),
"writeMask": HEAPU32[(((csPtr) + (16)) >> 2)]
} : undefined;
}
function makeColorStates(count, csArrayPtr) {
var states = [];
for (var i = 0; i < count; ++i) {
states.push(makeColorState(csArrayPtr + 24 * i));
}
return states;
}
function makeStencilStateFace(ssfPtr) {
return {
"compare": WebGPU.CompareFunction[HEAP32[((ssfPtr) >> 2)]],
"failOp": WebGPU.StencilOperation[HEAP32[(((ssfPtr) + (4)) >> 2)]],
"depthFailOp": WebGPU.StencilOperation[HEAP32[(((ssfPtr) + (8)) >> 2)]],
"passOp": WebGPU.StencilOperation[HEAP32[(((ssfPtr) + (12)) >> 2)]]
};
}
function makeDepthStencilState(dssPtr) {
if (!dssPtr) return undefined;
return {
"format": WebGPU.TextureFormat[HEAP32[(((dssPtr) + (4)) >> 2)]],
"depthWriteEnabled": !!(HEAPU32[(((dssPtr) + (8)) >> 2)]),
"depthCompare": WebGPU.CompareFunction[HEAP32[(((dssPtr) + (12)) >> 2)]],
"stencilFront": makeStencilStateFace(dssPtr + 16),
"stencilBack": makeStencilStateFace(dssPtr + 32),
"stencilReadMask": HEAPU32[(((dssPtr) + (48)) >> 2)],
"stencilWriteMask": HEAPU32[(((dssPtr) + (52)) >> 2)],
"depthBias": HEAP32[(((dssPtr) + (56)) >> 2)],
"depthBiasSlopeScale": HEAPF32[(((dssPtr) + (60)) >> 2)],
"depthBiasClamp": HEAPF32[(((dssPtr) + (64)) >> 2)]
};
}
function makeVertexAttribute(vaPtr) {
return {
"format": WebGPU.VertexFormat[HEAP32[(((vaPtr) + (4)) >> 2)]],
"offset": readI53FromI64((vaPtr) + (8)),
"shaderLocation": HEAPU32[(((vaPtr) + (16)) >> 2)]
};
}
function makeVertexAttributes(count, vaArrayPtr) {
var vas = [];
for (var i = 0; i < count; ++i) {
vas.push(makeVertexAttribute(vaArrayPtr + i * 24));
}
return vas;
}
function makeVertexBuffer(vbPtr) {
if (!vbPtr) return undefined;
var stepMode = WebGPU.VertexStepMode[HEAP32[(((vbPtr) + (4)) >> 2)]];
var attributeCount = HEAPU32[(((vbPtr) + (16)) >> 2)];
if (!stepMode && !attributeCount) {
return null;
}
return {
"arrayStride": readI53FromI64((vbPtr) + (8)),
"stepMode": stepMode,
"attributes": makeVertexAttributes(attributeCount, HEAPU32[(((vbPtr) + (20)) >> 2)])
};
}
function makeVertexBuffers(count, vbArrayPtr) {
if (!count) return undefined;
var vbs = [];
for (var i = 0; i < count; ++i) {
vbs.push(makeVertexBuffer(vbArrayPtr + i * 24));
}
return vbs;
}
function makeVertexState(viPtr) {
if (!viPtr) return undefined;
var desc = {
"module": WebGPU.getJsObject(HEAPU32[(((viPtr) + (4)) >> 2)]),
"constants": WebGPU.makePipelineConstants(HEAPU32[(((viPtr) + (16)) >> 2)], HEAPU32[(((viPtr) + (20)) >> 2)]),
"buffers": makeVertexBuffers(HEAPU32[(((viPtr) + (24)) >> 2)], HEAPU32[(((viPtr) + (28)) >> 2)]),
"entryPoint": WebGPU.makeStringFromOptionalStringView(viPtr + 8)
};
return desc;
}
function makeMultisampleState(msPtr) {
if (!msPtr) return undefined;
return {
"count": HEAPU32[(((msPtr) + (4)) >> 2)],
"mask": HEAPU32[(((msPtr) + (8)) >> 2)],
"alphaToCoverageEnabled": !!(HEAPU32[(((msPtr) + (12)) >> 2)])
};
}
function makeFragmentState(fsPtr) {
if (!fsPtr) return undefined;
var desc = {
"module": WebGPU.getJsObject(HEAPU32[(((fsPtr) + (4)) >> 2)]),
"constants": WebGPU.makePipelineConstants(HEAPU32[(((fsPtr) + (16)) >> 2)], HEAPU32[(((fsPtr) + (20)) >> 2)]),
"targets": makeColorStates(HEAPU32[(((fsPtr) + (24)) >> 2)], HEAPU32[(((fsPtr) + (28)) >> 2)]),
"entryPoint": WebGPU.makeStringFromOptionalStringView(fsPtr + 8)
};
return desc;
}
var desc = {
"label": WebGPU.makeStringFromOptionalStringView(descriptor + 4),
"layout": WebGPU.makePipelineLayout(HEAPU32[(((descriptor) + (12)) >> 2)]),
"vertex": makeVertexState(descriptor + 16),
"primitive": makePrimitiveState(descriptor + 48),
"depthStencil": makeDepthStencilState(HEAPU32[(((descriptor) + (72)) >> 2)]),
"multisample": makeMultisampleState(descriptor + 76),
"fragment": makeFragmentState(HEAPU32[(((descriptor) + (92)) >> 2)])
};
return desc;
},
fillLimitStruct: (limits, limitsOutPtr) => {
var nextInChainPtr = HEAPU32[((limitsOutPtr) >> 2)];
function setLimitValueU32(name, basePtr, limitOffset, fallbackValue = 0) {
var limitValue = limits[name] ?? fallbackValue;
HEAPU32[(((basePtr) + (limitOffset)) >> 2)] = limitValue;
}
function setLimitValueU64(name, basePtr, limitOffset, fallbackValue = 0) {
var limitValue = limits[name] ?? fallbackValue;
// Limits are integer-valued JS `Number`s, so they fit in 'i53'.
writeI53ToI64((basePtr) + (limitOffset), limitValue);
}
setLimitValueU32("maxTextureDimension1D", limitsOutPtr, 4);
setLimitValueU32("maxTextureDimension2D", limitsOutPtr, 8);
setLimitValueU32("maxTextureDimension3D", limitsOutPtr, 12);
setLimitValueU32("maxTextureArrayLayers", limitsOutPtr, 16);
setLimitValueU32("maxBindGroups", limitsOutPtr, 20);
setLimitValueU32("maxBindGroupsPlusVertexBuffers", limitsOutPtr, 24);
setLimitValueU32("maxBindingsPerBindGroup", limitsOutPtr, 28);
setLimitValueU32("maxDynamicUniformBuffersPerPipelineLayout", limitsOutPtr, 32);
setLimitValueU32("maxDynamicStorageBuffersPerPipelineLayout", limitsOutPtr, 36);
setLimitValueU32("maxSampledTexturesPerShaderStage", limitsOutPtr, 40);
setLimitValueU32("maxSamplersPerShaderStage", limitsOutPtr, 44);
setLimitValueU32("maxStorageBuffersPerShaderStage", limitsOutPtr, 48);
setLimitValueU32("maxStorageTexturesPerShaderStage", limitsOutPtr, 52);
setLimitValueU32("maxUniformBuffersPerShaderStage", limitsOutPtr, 56);
setLimitValueU32("minUniformBufferOffsetAlignment", limitsOutPtr, 80);
setLimitValueU32("minStorageBufferOffsetAlignment", limitsOutPtr, 84);
setLimitValueU64("maxUniformBufferBindingSize", limitsOutPtr, 64);
setLimitValueU64("maxStorageBufferBindingSize", limitsOutPtr, 72);
setLimitValueU32("maxVertexBuffers", limitsOutPtr, 88);
setLimitValueU64("maxBufferSize", limitsOutPtr, 96);
setLimitValueU32("maxVertexAttributes", limitsOutPtr, 104);
setLimitValueU32("maxVertexBufferArrayStride", limitsOutPtr, 108);
setLimitValueU32("maxInterStageShaderVariables", limitsOutPtr, 112);
setLimitValueU32("maxColorAttachments", limitsOutPtr, 116);
setLimitValueU32("maxColorAttachmentBytesPerSample", limitsOutPtr, 120);
setLimitValueU32("maxComputeWorkgroupStorageSize", limitsOutPtr, 124);
setLimitValueU32("maxComputeInvocationsPerWorkgroup", limitsOutPtr, 128);
setLimitValueU32("maxComputeWorkgroupSizeX", limitsOutPtr, 132);
setLimitValueU32("maxComputeWorkgroupSizeY", limitsOutPtr, 136);
setLimitValueU32("maxComputeWorkgroupSizeZ", limitsOutPtr, 140);
setLimitValueU32("maxComputeWorkgroupsPerDimension", limitsOutPtr, 144);
// Note this limit is new and won't be present in all browsers for a while. Fall back to 0.
setLimitValueU32("maxImmediateSize", limitsOutPtr, 148);
if (nextInChainPtr !== 0) {
var sType = HEAP32[(((nextInChainPtr) + (4)) >> 2)];
var compatibilityModeLimitsPtr = nextInChainPtr;
// Note these limits are new and won't be present in all browsers for a while. Fall back to exposing the PerShaderStage limit.
setLimitValueU32("maxStorageBuffersInVertexStage", compatibilityModeLimitsPtr, 8, limits.maxStorageBuffersPerShaderStage);
setLimitValueU32("maxStorageBuffersInFragmentStage", compatibilityModeLimitsPtr, 16, limits.maxStorageBuffersPerShaderStage);
setLimitValueU32("maxStorageTexturesInVertexStage", compatibilityModeLimitsPtr, 12, limits.maxStorageTexturesPerShaderStage);
setLimitValueU32("maxStorageTexturesInFragmentStage", compatibilityModeLimitsPtr, 20, limits.maxStorageTexturesPerShaderStage);
}
},
fillAdapterInfoStruct: (info, infoStruct) => {
// Populate subgroup limits.
HEAPU32[(((infoStruct) + (52)) >> 2)] = info.subgroupMinSize;
HEAPU32[(((infoStruct) + (56)) >> 2)] = info.subgroupMaxSize;
// Append all the strings together to condense into a single malloc.
var strs = info.vendor + info.architecture + info.device + info.description;
var strPtr = stringToNewUTF8(strs);
var vendorLen = lengthBytesUTF8(info.vendor);
WebGPU.setStringView(infoStruct + 4, strPtr, vendorLen);
strPtr += vendorLen;
var architectureLen = lengthBytesUTF8(info.architecture);
WebGPU.setStringView(infoStruct + 12, strPtr, architectureLen);
strPtr += architectureLen;
var deviceLen = lengthBytesUTF8(info.device);
WebGPU.setStringView(infoStruct + 20, strPtr, deviceLen);
strPtr += deviceLen;
var descriptionLen = lengthBytesUTF8(info.description);
WebGPU.setStringView(infoStruct + 28, strPtr, descriptionLen);
strPtr += descriptionLen;
HEAP32[(((infoStruct) + (36)) >> 2)] = 2;
var adapterType = info.isFallbackAdapter ? 3 : 4;
HEAP32[(((infoStruct) + (40)) >> 2)] = adapterType;
HEAPU32[(((infoStruct) + (44)) >> 2)] = 0;
HEAPU32[(((infoStruct) + (48)) >> 2)] = 0;
},
AddressMode: [ , "clamp-to-edge", "repeat", "mirror-repeat" ],
BlendFactor: [ , "zero", "one", "src", "one-minus-src", "src-alpha", "one-minus-src-alpha", "dst", "one-minus-dst", "dst-alpha", "one-minus-dst-alpha", "src-alpha-saturated", "constant", "one-minus-constant", "src1", "one-minus-src1", "src1-alpha", "one-minus-src1-alpha" ],
BlendOperation: [ , "add", "subtract", "reverse-subtract", "min", "max" ],
BufferBindingType: [ , , "uniform", "storage", "read-only-storage" ],
BufferMapState: [ , "unmapped", "pending", "mapped" ],
CompareFunction: [ , "never", "less", "equal", "less-equal", "greater", "not-equal", "greater-equal", "always" ],
CompilationInfoRequestStatus: [ , "success", "callback-cancelled" ],
ComponentSwizzle: [ , "0", "1", "r", "g", "b", "a" ],
CompositeAlphaMode: [ , "opaque", "premultiplied", "unpremultiplied", "inherit" ],
CullMode: [ , "none", "front", "back" ],
ErrorFilter: [ , "validation", "out-of-memory", "internal" ],
FeatureLevel: [ , "compatibility", "core" ],
FeatureName: {
1: "core-features-and-limits",
2: "depth-clip-control",
3: "depth32float-stencil8",
4: "texture-compression-bc",
5: "texture-compression-bc-sliced-3d",
6: "texture-compression-etc2",
7: "texture-compression-astc",
8: "texture-compression-astc-sliced-3d",
9: "timestamp-query",
10: "indirect-first-instance",
11: "shader-f16",
12: "rg11b10ufloat-renderable",
13: "bgra8unorm-storage",
14: "float32-filterable",
15: "float32-blendable",
16: "clip-distances",
17: "dual-source-blending",
18: "subgroups",
19: "texture-formats-tier1",
20: "texture-formats-tier2",
21: "primitive-index",
22: "texture-component-swizzle",
23: "subgroup-size-control",
327692: "chromium-experimental-unorm16-texture-formats",
327729: "chromium-experimental-multi-draw-indirect"
},
FilterMode: [ , "nearest", "linear" ],
FrontFace: [ , "ccw", "cw" ],
IndexFormat: [ , "uint16", "uint32" ],
InstanceFeatureName: [ , "timed-wait-any", "shader-source-spirv", "multiple-devices-per-adapter" ],
LoadOp: [ , "load", "clear" ],
MipmapFilterMode: [ , "nearest", "linear" ],
OptionalBool: [ "false", "true" ],
PowerPreference: [ , "low-power", "high-performance" ],
PredefinedColorSpace: [ , "srgb", "display-p3" ],
PrimitiveTopology: [ , "point-list", "line-list", "line-strip", "triangle-list", "triangle-strip" ],
QueryType: [ , "occlusion", "timestamp" ],
SamplerBindingType: [ , , "filtering", "non-filtering", "comparison" ],
Status: [ , "success", "error" ],
StencilOperation: [ , "keep", "zero", "replace", "invert", "increment-clamp", "decrement-clamp", "increment-wrap", "decrement-wrap" ],
StorageTextureAccess: [ , , "write-only", "read-only", "read-write" ],
StoreOp: [ , "store", "discard" ],
SurfaceGetCurrentTextureStatus: [ , "success-optimal", "success-suboptimal", "timeout", "outdated", "lost", "error" ],
TextureAspect: [ , "all", "stencil-only", "depth-only" ],
TextureDimension: [ , "1d", "2d", "3d" ],
TextureFormat: [ , "r8unorm", "r8snorm", "r8uint", "r8sint", "r16unorm", "r16snorm", "r16uint", "r16sint", "r16float", "rg8unorm", "rg8snorm", "rg8uint", "rg8sint", "r32float", "r32uint", "r32sint", "rg16unorm", "rg16snorm", "rg16uint", "rg16sint", "rg16float", "rgba8unorm", "rgba8unorm-srgb", "rgba8snorm", "rgba8uint", "rgba8sint", "bgra8unorm", "bgra8unorm-srgb", "rgb10a2uint", "rgb10a2unorm", "rg11b10ufloat", "rgb9e5ufloat", "rg32float", "rg32uint", "rg32sint", "rgba16unorm", "rgba16snorm", "rgba16uint", "rgba16sint", "rgba16float", "rgba32float", "rgba32uint", "rgba32sint", "stencil8", "depth16unorm", "depth24plus", "depth24plus-stencil8", "depth32float", "depth32float-stencil8", "bc1-rgba-unorm", "bc1-rgba-unorm-srgb", "bc2-rgba-unorm", "bc2-rgba-unorm-srgb", "bc3-rgba-unorm", "bc3-rgba-unorm-srgb", "bc4-r-unorm", "bc4-r-snorm", "bc5-rg-unorm", "bc5-rg-snorm", "bc6h-rgb-ufloat", "bc6h-rgb-float", "bc7-rgba-unorm", "bc7-rgba-unorm-srgb", "etc2-rgb8unorm", "etc2-rgb8unorm-srgb", "etc2-rgb8a1unorm", "etc2-rgb8a1unorm-srgb", "etc2-rgba8unorm", "etc2-rgba8unorm-srgb", "eac-r11unorm", "eac-r11snorm", "eac-rg11unorm", "eac-rg11snorm", "astc-4x4-unorm", "astc-4x4-unorm-srgb", "astc-5x4-unorm", "astc-5x4-unorm-srgb", "astc-5x5-unorm", "astc-5x5-unorm-srgb", "astc-6x5-unorm", "astc-6x5-unorm-srgb", "astc-6x6-unorm", "astc-6x6-unorm-srgb", "astc-8x5-unorm", "astc-8x5-unorm-srgb", "astc-8x6-unorm", "astc-8x6-unorm-srgb", "astc-8x8-unorm", "astc-8x8-unorm-srgb", "astc-10x5-unorm", "astc-10x5-unorm-srgb", "astc-10x6-unorm", "astc-10x6-unorm-srgb", "astc-10x8-unorm", "astc-10x8-unorm-srgb", "astc-10x10-unorm", "astc-10x10-unorm-srgb", "astc-12x10-unorm", "astc-12x10-unorm-srgb", "astc-12x12-unorm", "astc-12x12-unorm-srgb" ],
TextureSampleType: [ , , "float", "unfilterable-float", "depth", "sint", "uint" ],
TextureViewDimension: [ , "1d", "2d", "2d-array", "cube", "cube-array", "3d" ],
ToneMappingMode: [ , "standard", "extended" ],
VertexFormat: [ , "uint8", "uint8x2", "uint8x4", "sint8", "sint8x2", "sint8x4", "unorm8", "unorm8x2", "unorm8x4", "snorm8", "snorm8x2", "snorm8x4", "uint16", "uint16x2", "uint16x4", "sint16", "sint16x2", "sint16x4", "unorm16", "unorm16x2", "unorm16x4", "snorm16", "snorm16x2", "snorm16x4", "float16", "float16x2", "float16x4", "float32", "float32x2", "float32x3", "float32x4", "uint32", "uint32x2", "uint32x3", "uint32x4", "sint32", "sint32x2", "sint32x3", "sint32x4", "unorm10-10-10-2", "unorm8x4-bgra", "snorm10-10-10-2" ],
VertexStepMode: [ , "vertex", "instance" ],
WGSLLanguageFeatureName: [ , "readonly_and_readwrite_storage_textures", "packed_4x8_integer_dot_product", "unrestricted_pointer_parameters", "pointer_composite_access", "uniform_buffer_standard_layout", "subgroup_id", "texture_and_sampler_let", "subgroup_uniformity", "texture_formats_tier1", "linear_indexing", "immediate_address_space", "buffer_view" ]
};
var _emwgpuBufferDestroy = bufferPtr => {
var buffer = WebGPU.getJsObject(bufferPtr);
var onUnmap = WebGPU.Internals.bufferOnUnmaps[bufferPtr];
if (onUnmap) {
for (var i = 0; i < onUnmap.length; ++i) {
onUnmap[i]();
}
delete WebGPU.Internals.bufferOnUnmaps[bufferPtr];
}
buffer.destroy();
};
var _emwgpuDelete = ptr => {
delete WebGPU.Internals.jsObjects[ptr];
};
var _emwgpuDeviceCreateBuffer = (devicePtr, descriptor, bufferPtr) => {
var mappedAtCreation = !!(HEAPU32[(((descriptor) + (32)) >> 2)]);
var desc = {
"label": WebGPU.makeStringFromOptionalStringView(descriptor + 4),
"usage": HEAPU32[(((descriptor) + (16)) >> 2)],
"size": readI53FromI64((descriptor) + (24)),
"mappedAtCreation": mappedAtCreation
};
var device = WebGPU.getJsObject(devicePtr);
var buffer;
try {
buffer = device.createBuffer(desc);
} catch (ex) {
// The only exception should be RangeError if mapping at creation ran out of memory.
return false;
}
WebGPU.Internals.jsObjectInsert(bufferPtr, buffer);
if (mappedAtCreation) {
WebGPU.Internals.bufferOnUnmaps[bufferPtr] = [];
}
return true;
};
var _emwgpuDeviceDestroy = devicePtr => {
const device = WebGPU.getJsObject(devicePtr);
// Remove the onuncapturederror handler which holds a pointer to the WGPUDevice.
device.onuncapturederror = null;
device.destroy();
};
var ENV = {};
var getExecutableName = () => thisProgram;
var getEnvStrings = () => {
if (!getEnvStrings.strings) {
// Default values.
var lang = (globalThis.navigator?.language ?? "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 _environ_get = (__environ, environ_buf) => {
var bufSize = 0;
var envp = 0;
for (var string of getEnvStrings()) {
var ptr = environ_buf + bufSize;
HEAPU32[(((__environ) + (envp)) >> 2)] = ptr;
bufSize += stringToUTF8(string, ptr, Infinity) + 1;
envp += 4;
}
return 0;
};
var _environ_sizes_get = (penviron_count, penviron_buf_size) => {
var strings = getEnvStrings();
HEAPU32[((penviron_count) >> 2)] = strings.length;
var bufSize = 0;
for (var string of strings) {
bufSize += lengthBytesUTF8(string) + 1;
}
HEAPU32[((penviron_buf_size) >> 2)] = bufSize;
return 0;
};
function _fd_close(fd) {
try {
var stream = SYSCALLS.getStreamFromFD(fd);
FS.close(stream);
return 0;
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return e.errno;
}
}
/** @param {number=} offset */ var doReadv = (stream, iov, iovcnt, offset) => {
var ret = 0;
for (var i = 0; i < iovcnt; i++) {
var ptr = HEAPU32[((iov) >> 2)];
var len = HEAPU32[(((iov) + (4)) >> 2)];
iov += 8;
var curr = FS.read(stream, HEAP8, ptr, len, offset);
if (curr < 0) return -1;
ret += curr;
if (curr < len) break;
// nothing more to read
if (typeof offset != "undefined") {
offset += curr;
}
}
return ret;
};
function _fd_read(fd, iov, iovcnt, pnum) {
try {
var stream = SYSCALLS.getStreamFromFD(fd);
var num = doReadv(stream, iov, iovcnt);
HEAPU32[((pnum) >> 2)] = num;
return 0;
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return e.errno;
}
}
function _fd_seek(fd, offset_low, offset_high, whence, newOffset) {
var offset = convertI32PairToI53Checked(offset_low, offset_high);
try {
if (isNaN(offset)) return 22;
var stream = SYSCALLS.getStreamFromFD(fd);
FS.llseek(stream, offset, whence);
(tempI64 = [ stream.position >>> 0, (tempDouble = stream.position, (+(Math.abs(tempDouble))) >= 1 ? (tempDouble > 0 ? (+(Math.floor((tempDouble) / 4294967296))) >>> 0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble))) >>> 0)) / 4294967296))))) >>> 0) : 0) ],
HEAP32[((newOffset) >> 2)] = tempI64[0], HEAP32[(((newOffset) + (4)) >> 2)] = tempI64[1]);
if (stream.getdents && offset === 0 && whence === 0) stream.getdents = null;
// reset readdir state
return 0;
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return e.errno;
}
}
/** @param {number=} offset */ var doWritev = (stream, iov, iovcnt, offset) => {
var ret = 0;
for (var i = 0; i < iovcnt; i++) {
var ptr = HEAPU32[((iov) >> 2)];
var len = HEAPU32[(((iov) + (4)) >> 2)];
iov += 8;
var curr = FS.write(stream, HEAP8, ptr, len, offset);
if (curr < 0) return -1;
ret += curr;
if (curr < len) {
// No more space to write.
break;
}
if (typeof offset != "undefined") {
offset += curr;
}
}
return ret;
};
function _fd_write(fd, iov, iovcnt, pnum) {
try {
var stream = SYSCALLS.getStreamFromFD(fd);
var num = doWritev(stream, iov, iovcnt);
HEAPU32[((pnum) >> 2)] = num;
return 0;
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return e.errno;
}
}
var _emscripten_glActiveTexture = x0 => GLctx.activeTexture(x0);
var _glActiveTexture = _emscripten_glActiveTexture;
var _emscripten_glAttachShader = (program, shader) => {
GLctx.attachShader(GL.programs[program], GL.shaders[shader]);
};
var _glAttachShader = _emscripten_glAttachShader;
var _emscripten_glBindAttribLocation = (program, index, name) => {
GLctx.bindAttribLocation(GL.programs[program], index, UTF8ToString(name));
};
var _glBindAttribLocation = _emscripten_glBindAttribLocation;
var _emscripten_glBindBuffer = (target, buffer) => {
// Calling glBindBuffer with an unknown buffer will implicitly create a
// new one. Here we bypass `GL.counter` and directly using the ID passed
// in.
if (buffer && !GL.buffers[buffer]) {
var b = GLctx.createBuffer();
b.name = buffer;
GL.buffers[buffer] = b;
}
if (target == 34962) {
GLctx.currentArrayBufferBinding = buffer;
} else if (target == 34963) {
GLctx.currentElementArrayBufferBinding = 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 _glBindBuffer = _emscripten_glBindBuffer;
var _emscripten_glBindFramebuffer = (target, framebuffer) => {
GLctx.bindFramebuffer(target, GL.framebuffers[framebuffer]);
};
var _glBindFramebuffer = _emscripten_glBindFramebuffer;
var _emscripten_glBindTexture = (target, texture) => {
GLctx.bindTexture(target, GL.textures[texture]);
};
var _glBindTexture = _emscripten_glBindTexture;
var _emscripten_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, HEAPU8, 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 ? HEAPU8.subarray(data, data + size) : size, usage);
};
var _glBufferData = _emscripten_glBufferData;
var convertI32PairToI53 = (lo, hi) => (lo >>> 0) + hi * 4294967296;
var _emscripten_glClientWaitSync = (sync, flags, timeout_low, timeout_high) => {
// WebGL2 vs GLES3 differences: in GLES3, the timeout parameter is a uint64, where 0xFFFFFFFFFFFFFFFFULL means GL_TIMEOUT_IGNORED.
// In JS, there's no 64-bit value types, so instead timeout is taken to be signed, and GL_TIMEOUT_IGNORED is given value -1.
// Inherently the value accepted in the timeout is lossy, and can't take in arbitrary u64 bit pattern (but most likely doesn't matter)
// See https://www.khronos.org/registry/webgl/specs/latest/2.0/#5.15
var timeout = convertI32PairToI53(timeout_low, timeout_high);
return GLctx.clientWaitSync(GL.syncs[sync], flags, timeout);
};
var _glClientWaitSync = _emscripten_glClientWaitSync;
var _emscripten_glCompileShader = shader => {
GLctx.compileShader(GL.shaders[shader]);
};
var _glCompileShader = _emscripten_glCompileShader;
var _emscripten_glCreateProgram = () => {
var id = GL.getNewId(GL.programs);
var program = GLctx.createProgram();
// Store additional information needed for each shader program:
program.name = id;
// Lazy cache results of
// glGetProgramiv(GL_ACTIVE_UNIFORM_MAX_LENGTH/GL_ACTIVE_ATTRIBUTE_MAX_LENGTH/GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH)
program.maxUniformLength = program.maxAttributeLength = program.maxUniformBlockNameLength = 0;
program.uniformIdCounter = 1;
GL.programs[id] = program;
return id;
};
var _glCreateProgram = _emscripten_glCreateProgram;
var _emscripten_glCreateShader = shaderType => {
var id = GL.getNewId(GL.shaders);
GL.shaders[id] = GLctx.createShader(shaderType);
return id;
};
var _glCreateShader = _emscripten_glCreateShader;
var _emscripten_glDeleteFramebuffers = (n, framebuffers) => {
for (var i = 0; i < n; ++i) {
var id = HEAP32[(((framebuffers) + (i * 4)) >> 2)];
var framebuffer = GL.framebuffers[id];
if (!framebuffer) continue;
// GL spec: "glDeleteFramebuffers silently ignores 0s and names that do not correspond to existing framebuffer objects".
GLctx.deleteFramebuffer(framebuffer);
framebuffer.name = 0;
GL.framebuffers[id] = null;
}
};
var _glDeleteFramebuffers = _emscripten_glDeleteFramebuffers;
var _emscripten_glDeleteProgram = id => {
if (!id) return;
var program = GL.programs[id];
if (!program) {
// glDeleteProgram actually signals an error when deleting a nonexisting
// object, unlike some other GL delete functions.
GL.recordError(1281);
return;
}
GLctx.deleteProgram(program);
program.name = 0;
GL.programs[id] = null;
};
var _glDeleteProgram = _emscripten_glDeleteProgram;
var _emscripten_glDeleteShader = id => {
if (!id) return;
var shader = GL.shaders[id];
if (!shader) {
// glDeleteShader actually signals an error when deleting a nonexisting
// object, unlike some other GL delete functions.
GL.recordError(1281);
return;
}
GLctx.deleteShader(shader);
GL.shaders[id] = null;
};
var _glDeleteShader = _emscripten_glDeleteShader;
var _emscripten_glDeleteSync = id => {
if (!id) return;
var sync = GL.syncs[id];
if (!sync) {
// glDeleteSync signals an error when deleting a nonexisting object, unlike some other GL delete functions.
GL.recordError(1281);
return;
}
GLctx.deleteSync(sync);
sync.name = 0;
GL.syncs[id] = null;
};
var _glDeleteSync = _emscripten_glDeleteSync;
var _emscripten_glDeleteTextures = (n, textures) => {
for (var i = 0; i < n; i++) {
var id = HEAP32[(((textures) + (i * 4)) >> 2)];
var texture = GL.textures[id];
// GL spec: "glDeleteTextures silently ignores 0s and names that do not
// correspond to existing textures".
if (!texture) continue;
GLctx.deleteTexture(texture);
texture.name = 0;
GL.textures[id] = null;
}
};
var _glDeleteTextures = _emscripten_glDeleteTextures;
var _emscripten_glDetachShader = (program, shader) => {
GLctx.detachShader(GL.programs[program], GL.shaders[shader]);
};
var _glDetachShader = _emscripten_glDetachShader;
var _emscripten_glDisableVertexAttribArray = index => {
var cb = GL.currentContext.clientBuffers[index];
cb.enabled = false;
GLctx.disableVertexAttribArray(index);
};
var _glDisableVertexAttribArray = _emscripten_glDisableVertexAttribArray;
var _emscripten_glDrawArrays = (mode, first, count) => {
// bind any client-side buffers
GL.preDrawHandleClientVertexAttribBindings(first + count);
GLctx.drawArrays(mode, first, count);
GL.postDrawHandleClientVertexAttribBindings();
};
var _glDrawArrays = _emscripten_glDrawArrays;
var _emscripten_glEnableVertexAttribArray = index => {
var cb = GL.currentContext.clientBuffers[index];
cb.enabled = true;
GLctx.enableVertexAttribArray(index);
};
var _glEnableVertexAttribArray = _emscripten_glEnableVertexAttribArray;
var _emscripten_glFenceSync = (condition, flags) => {
var sync = GLctx.fenceSync(condition, flags);
if (sync) {
var id = GL.getNewId(GL.syncs);
sync.name = id;
GL.syncs[id] = sync;
return id;
}
return 0;
};
var _glFenceSync = _emscripten_glFenceSync;
var _emscripten_glFinish = () => GLctx.finish();
var _glFinish = _emscripten_glFinish;
var _emscripten_glFramebufferTexture2D = (target, attachment, textarget, texture, level) => {
GLctx.framebufferTexture2D(target, attachment, textarget, GL.textures[texture], level);
};
var _glFramebufferTexture2D = _emscripten_glFramebufferTexture2D;
var _emscripten_glGenBuffers = (n, buffers) => {
GL.genObject(n, buffers, "createBuffer", GL.buffers);
};
var _glGenBuffers = _emscripten_glGenBuffers;
var _emscripten_glGenFramebuffers = (n, ids) => {
GL.genObject(n, ids, "createFramebuffer", GL.framebuffers);
};
var _glGenFramebuffers = _emscripten_glGenFramebuffers;
var _emscripten_glGenTextures = (n, textures) => {
GL.genObject(n, textures, "createTexture", GL.textures);
};
var _glGenTextures = _emscripten_glGenTextures;
var _emscripten_glGetError = () => {
var error = GLctx.getError() || GL.lastError;
GL.lastError = 0;
return error;
};
var _glGetError = _emscripten_glGetError;
var webglGetExtensions = () => {
var exts = getEmscriptenSupportedExtensions(GLctx);
exts = exts.concat(exts.map(e => "GL_" + e));
return exts;
};
var emscriptenWebGLGet = (name_, p, type) => {
// Guard against user passing a null pointer.
// Note that GLES2 spec does not say anything about how passing a null
// pointer should be treated. Testing on desktop core GL 3, the application
// crashes on glGetIntegerv to a null pointer, but better to report an error
// instead of doing anything random.
if (!p) {
GL.recordError(1281);
return;
}
var ret = undefined;
switch (name_) {
// Handle a few trivial GLES values
case 36346:
// GL_SHADER_COMPILER
ret = 1;
break;
case 36344:
// GL_SHADER_BINARY_FORMATS
if (type != 0 && type != 1) {
GL.recordError(1280);
}
// Do not write anything to the out pointer, since no binary formats are
// supported.
return;
case 34814:
// GL_NUM_PROGRAM_BINARY_FORMATS
case 36345:
// GL_NUM_SHADER_BINARY_FORMATS
ret = 0;
break;
case 34466:
// GL_NUM_COMPRESSED_TEXTURE_FORMATS
// WebGL doesn't have GL_NUM_COMPRESSED_TEXTURE_FORMATS (it's obsolete
// since GL_COMPRESSED_TEXTURE_FORMATS returns a JS array that can be
// queried for length), so implement it ourselves to allow C++ GLES2
// code to get the length.
var formats = GLctx.getParameter(34467);
ret = formats ? formats.length : 0;
break;
case 33309:
// GL_NUM_EXTENSIONS
if (GL.currentContext.version < 2) {
// Calling GLES3/WebGL2 function with a GLES2/WebGL1 context
GL.recordError(1282);
return;
}
ret = webglGetExtensions().length;
break;
case 33307:
// GL_MAJOR_VERSION
case 33308:
// GL_MINOR_VERSION
if (GL.currentContext.version < 2) {
GL.recordError(1280);
// GL_INVALID_ENUM
return;
}
ret = name_ == 33307 ? 3 : 0;
// return version 3.0
break;
}
if (ret === undefined) {
var result = GLctx.getParameter(name_);
switch (typeof result) {
case "number":
ret = result;
break;
case "boolean":
ret = result ? 1 : 0;
break;
case "string":
GL.recordError(1280);
// GL_INVALID_ENUM
return;
case "object":
if (result === null) {
// null is a valid result for some (e.g., which buffer is bound -
// perhaps nothing is bound), but otherwise can mean an invalid
// name_, which we need to report as an error
switch (name_) {
case 34964:
// ARRAY_BUFFER_BINDING
case 35725:
// CURRENT_PROGRAM
case 34965:
// ELEMENT_ARRAY_BUFFER_BINDING
case 36006:
// FRAMEBUFFER_BINDING or DRAW_FRAMEBUFFER_BINDING
case 36007:
// RENDERBUFFER_BINDING
case 32873:
// TEXTURE_BINDING_2D
case 34229:
// WebGL 2 GL_VERTEX_ARRAY_BINDING, or WebGL 1 extension OES_vertex_array_object GL_VERTEX_ARRAY_BINDING_OES
case 36662:
// COPY_READ_BUFFER_BINDING or COPY_READ_BUFFER
case 36663:
// COPY_WRITE_BUFFER_BINDING or COPY_WRITE_BUFFER
case 35053:
// PIXEL_PACK_BUFFER_BINDING
case 35055:
// PIXEL_UNPACK_BUFFER_BINDING
case 36010:
// READ_FRAMEBUFFER_BINDING
case 35097:
// SAMPLER_BINDING
case 35869:
// TEXTURE_BINDING_2D_ARRAY
case 32874:
// TEXTURE_BINDING_3D
case 36389:
// TRANSFORM_FEEDBACK_BINDING
case 35983:
// TRANSFORM_FEEDBACK_BUFFER_BINDING
case 35368:
// UNIFORM_BUFFER_BINDING
case 34068:
{
// TEXTURE_BINDING_CUBE_MAP
ret = 0;
break;
}
default:
{
GL.recordError(1280);
// GL_INVALID_ENUM
return;
}
}
} else if (result instanceof Float32Array || result instanceof Uint32Array || result instanceof Int32Array || result instanceof Array) {
for (var i = 0; i < result.length; ++i) {
switch (type) {
case 0:
HEAP32[(((p) + (i * 4)) >> 2)] = result[i];
break;
case 2:
HEAPF32[(((p) + (i * 4)) >> 2)] = result[i];
break;
case 4:
HEAP8[(p) + (i)] = result[i] ? 1 : 0;
break;
}
}
return;
} else {
try {
ret = result.name | 0;
} catch (e) {
GL.recordError(1280);
// GL_INVALID_ENUM
err(`GL_INVALID_ENUM in glGet${type}v: Unknown object returned from WebGL getParameter(${name_})! (error: ${e})`);
return;
}
}
break;
default:
GL.recordError(1280);
// GL_INVALID_ENUM
err(`GL_INVALID_ENUM in glGet${type}v: Native code calling glGet${type}v(${name_}) and it returns ${result} of type ${typeof (result)}!`);
return;
}
}
switch (type) {
case 1:
writeI53ToI64(p, ret);
break;
case 0:
HEAP32[((p) >> 2)] = ret;
break;
case 2:
HEAPF32[((p) >> 2)] = ret;
break;
case 4:
HEAP8[p] = ret ? 1 : 0;
break;
}
};
var _emscripten_glGetIntegerv = (name_, p) => emscriptenWebGLGet(name_, p, 0);
var _glGetIntegerv = _emscripten_glGetIntegerv;
var _emscripten_glGetString = name_ => {
var ret = GL.stringCache[name_];
if (!ret) {
switch (name_) {
case 7939:
ret = stringToNewUTF8(webglGetExtensions().join(" "));
break;
case 7936:
case 7937:
case 37445:
case 37446:
var s = GLctx.getParameter(name_);
if (!s) {
GL.recordError(1280);
}
ret = s ? stringToNewUTF8(s) : 0;
break;
case 7938:
var webGLVersion = GLctx.getParameter(7938);
// return GLES version string corresponding to the version of the WebGL context
var glVersion = `OpenGL ES 2.0 (${webGLVersion})`;
if (GL.currentContext.version >= 2) glVersion = `OpenGL ES 3.0 (${webGLVersion})`;
ret = stringToNewUTF8(glVersion);
break;
case 35724:
var glslVersion = GLctx.getParameter(35724);
// extract the version number 'N.M' from the string 'WebGL GLSL ES N.M ...'
var ver_re = /^WebGL GLSL ES ([0-9]\.[0-9][0-9]?)(?:$| .*)/;
var ver_num = glslVersion.match(ver_re);
if (ver_num !== null) {
if (ver_num[1].length == 3) ver_num[1] = ver_num[1] + "0";
// ensure minor version has 2 digits
glslVersion = `OpenGL ES GLSL ES ${ver_num[1]} (${glslVersion})`;
}
ret = stringToNewUTF8(glslVersion);
break;
default:
GL.recordError(1280);
}
GL.stringCache[name_] = ret;
}
return ret;
};
var _glGetString = _emscripten_glGetString;
/** @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 _emscripten_glGetUniformLocation = (program, name) => {
name = UTF8ToString(name);
if (program = GL.programs[program]) {
webglPrepareUniformLocationsBeforeFirstUse(program);
var uniformLocsById = program.uniformLocsById;
// Maps GLuint -> WebGLUniformLocation
var arrayIndex = 0;
var uniformBaseName = name;
// Invariant: when populating integer IDs for uniform locations, we must
// maintain the precondition that arrays reside in contiguous addresses,
// i.e. for a 'vec4 colors[10];', colors[4] must be at location
// colors[0]+4. However, user might call glGetUniformLocation(program,
// "colors") for an array, so we cannot discover based on the user input
// arguments whether the uniform we are dealing with is an array. The only
// way to discover which uniforms are arrays is to enumerate over all the
// active uniforms in the program.
var leftBrace = webglGetLeftBracePos(name);
// If user passed an array accessor "[index]", parse the array index off the accessor.
if (leftBrace > 0) {
arrayIndex = jstoi_q(name.slice(leftBrace + 1)) >>> 0;
// "index]", coerce parseInt(']') with >>>0 to treat "foo[]" as "foo[0]" and foo[-1] as unsigned out-of-bounds.
uniformBaseName = name.slice(0, leftBrace);
}
// Have we cached the location of this uniform before?
// A pair [array length, GLint of the uniform location]
var sizeAndId = program.uniformSizeAndIdsByName[uniformBaseName];
// If a uniform with this name exists, and if its index is within the
// array limits (if it's even an array), query the WebGLlocation, or
// return an existing cached location.
if (sizeAndId && arrayIndex < sizeAndId[0]) {
arrayIndex += sizeAndId[1];
// Add the base location of the uniform to the array index offset.
if ((uniformLocsById[arrayIndex] = uniformLocsById[arrayIndex] || GLctx.getUniformLocation(program, name))) {
return arrayIndex;
}
}
} else {
// N.b. we are currently unable to distinguish between GL program IDs that
// never existed vs GL program IDs that have been deleted, so report
// GL_INVALID_VALUE in both cases.
GL.recordError(1281);
}
return -1;
};
var _glGetUniformLocation = _emscripten_glGetUniformLocation;
var _emscripten_glLinkProgram = program => {
program = GL.programs[program];
GLctx.linkProgram(program);
// Invalidate earlier computed uniform->ID mappings, those have now become stale
program.uniformLocsById = 0;
// Mark as null-like so that glGetUniformLocation() knows to populate this again.
program.uniformSizeAndIdsByName = {};
};
var _glLinkProgram = _emscripten_glLinkProgram;
var _emscripten_glPixelStorei = (pname, param) => {
if (pname == 3317) {
GL.unpackAlignment = param;
} else if (pname == 3314) {
GL.unpackRowLength = param;
}
GLctx.pixelStorei(pname, param);
};
var _glPixelStorei = _emscripten_glPixelStorei;
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 HEAP8;
if (type == 1) return HEAPU8;
if (type == 2) return HEAP16;
if (type == 4) return HEAP32;
if (type == 6) return HEAPF32;
if (type == 5 || type == 28922 || type == 28520 || type == 30779 || type == 30782) return HEAPU32;
return HEAPU16;
};
var toTypedArrayIndex = (pointer, heap) => pointer >>> (31 - Math.clz32(heap.BYTES_PER_ELEMENT));
var emscriptenWebGLGetTexPixelData = (type, format, width, height, pixels) => {
var heap = heapObjectForWebGLType(type);
var sizePerPixel = colorChannelsInGlTextureFormat(format) * heap.BYTES_PER_ELEMENT;
var bytes = computeUnpackAlignedImageSize(width, height, sizePerPixel);
return heap.subarray(toTypedArrayIndex(pixels, heap), toTypedArrayIndex(pixels + bytes, heap));
};
var _emscripten_glReadPixels = (x, y, width, height, format, type, pixels) => {
if (GL.currentContext.version >= 2) {
if (GLctx.currentPixelPackBufferBinding) {
GLctx.readPixels(x, y, width, height, format, type, pixels);
return;
}
var heap = heapObjectForWebGLType(type);
var target = toTypedArrayIndex(pixels, heap);
GLctx.readPixels(x, y, width, height, format, type, heap, target);
return;
}
var pixelData = emscriptenWebGLGetTexPixelData(type, format, width, height, pixels);
if (!pixelData) {
GL.recordError(1280);
return;
}
GLctx.readPixels(x, y, width, height, format, type, pixelData);
};
var _glReadPixels = _emscripten_glReadPixels;
var _emscripten_glShaderSource = (shader, count, string, length) => {
var source = GL.getSource(shader, count, string, length);
GLctx.shaderSource(GL.shaders[shader], source);
};
var _glShaderSource = _emscripten_glShaderSource;
var _emscripten_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) : null;
GLctx.texImage2D(target, level, internalFormat, width, height, border, format, type, pixelData);
};
var _glTexImage2D = _emscripten_glTexImage2D;
var _emscripten_glTexParameteri = (x0, x1, x2) => GLctx.texParameteri(x0, x1, x2);
var _glTexParameteri = _emscripten_glTexParameteri;
var _emscripten_glTexStorage2D = (x0, x1, x2, x3, x4) => GLctx.texStorage2D(x0, x1, x2, x3, x4);
var _glTexStorage2D = _emscripten_glTexStorage2D;
var webglGetProgramUniformLocation = (program, location) => {
if (program) {
var webglLoc = program.uniformLocsById[location];
// program.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") {
program.uniformLocsById[location] = webglLoc = GLctx.getUniformLocation(program, program.uniformArrayNamesById[location] + (webglLoc > 0 ? `[${webglLoc}]` : ""));
}
// Else an already cached WebGLUniformLocation, return it.
return webglLoc;
} else {
GL.recordError(1282);
}
};
var webglGetUniformLocation = location => webglGetProgramUniformLocation(GLctx.currentProgram, location);
var _emscripten_glUniform1i = (location, v0) => {
GLctx.uniform1i(webglGetUniformLocation(location), v0);
};
var _glUniform1i = _emscripten_glUniform1i;
var _emscripten_glUseProgram = program => {
program = GL.programs[program];
GLctx.useProgram(program);
// Record the currently active program so that we can access the uniform
// mapping table of that program.
GLctx.currentProgram = program;
};
var _glUseProgram = _emscripten_glUseProgram;
var _emscripten_glVertexAttribPointer = (index, size, type, normalized, stride, ptr) => {
var cb = GL.currentContext.clientBuffers[index];
if (!GLctx.currentArrayBufferBinding) {
cb.size = size;
cb.type = type;
cb.normalized = normalized;
cb.stride = stride;
cb.ptr = ptr;
cb.clientside = true;
cb.vertexAttribPointerAdaptor = /** @this {WebGLRenderingContext} */ function(index, size, type, normalized, stride, ptr) {
this.vertexAttribPointer(index, size, type, normalized, stride, ptr);
};
return;
}
cb.clientside = false;
GLctx.vertexAttribPointer(index, size, type, !!normalized, stride, ptr);
};
var _glVertexAttribPointer = _emscripten_glVertexAttribPointer;
var _emscripten_glViewport = (x0, x1, x2, x3) => GLctx.viewport(x0, x1, x2, x3);
var _glViewport = _emscripten_glViewport;
var _random_get = (buffer, size) => randomFill(HEAPU8.subarray(buffer, buffer + size));
var _wgpuCommandEncoderCopyTextureToBuffer = (encoderPtr, srcPtr, dstPtr, copySizePtr) => {
var commandEncoder = WebGPU.getJsObject(encoderPtr);
var copySize = WebGPU.makeExtent3D(copySizePtr);
commandEncoder.copyTextureToBuffer(WebGPU.makeTexelCopyTextureInfo(srcPtr), WebGPU.makeTexelCopyBufferInfo(dstPtr), copySize);
};
var _wgpuCommandEncoderFinish = (encoderPtr, descriptor) => {
// TODO: Use the descriptor.
var commandEncoder = WebGPU.getJsObject(encoderPtr);
var ptr = _emwgpuCreateCommandBuffer(0);
WebGPU.Internals.jsObjectInsert(ptr, commandEncoder.finish());
return ptr;
};
var _wgpuDeviceCreateCommandEncoder = (devicePtr, descriptor) => {
var desc;
if (descriptor) {
desc = {
"label": WebGPU.makeStringFromOptionalStringView(descriptor + 4)
};
}
var device = WebGPU.getJsObject(devicePtr);
var ptr = _emwgpuCreateCommandEncoder(0);
WebGPU.Internals.jsObjectInsert(ptr, device.createCommandEncoder(desc));
return ptr;
};
var _wgpuQueueSubmit = (queuePtr, commandCount, commands) => {
var queue = WebGPU.getJsObject(queuePtr);
var cmds = Array.from(HEAP32.subarray((((commands) >> 2)), ((commands + commandCount * 4) >> 2)), id => WebGPU.getJsObject(id));
queue.submit(cmds);
};
var _wgpuTextureDestroy = texturePtr => {
WebGPU.getJsObject(texturePtr).destroy();
};
var _wgpuTextureGetFormat = texturePtr => {
var texture = WebGPU.getJsObject(texturePtr);
// Should return the enum integer instead of string.
return WebGPU.TextureFormat.indexOf(texture.format);
};
var getCFunc = ident => {
var func = Module["_" + ident];
// closure exported function
return func;
};
var writeArrayToMemory = (array, buffer) => {
HEAP8.set(array, buffer);
};
/**
* @param {string|null=} returnType
* @param {Array=} argTypes
* @param {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;
if (args) {
for (var i = 0; i < args.length; i++) {
var converter = toC[argTypes[i]];
if (converter) {
if (stack === 0) stack = stackSave();
cArgs[i] = converter(args[i]);
} else {
cArgs[i] = args[i];
}
}
}
var ret = func(...cArgs);
function onDone(ret) {
if (stack !== 0) stackRestore(stack);
return convertReturnValue(ret);
}
ret = onDone(ret);
return ret;
};
var FS_createPath = (...args) => FS.createPath(...args);
var FS_unlink = (...args) => FS.unlink(...args);
var FS_createLazyFile = (...args) => FS.createLazyFile(...args);
var FS_createDevice = (...args) => FS.createDevice(...args);
FS.createPreloadedFile = FS_createPreloadedFile;
FS.preloadFile = FS_preloadFile;
FS.staticInit();
// Signal GL rendering layer that processing of a new frame is about to
// start. This helps it optimize VBO double-buffering and reduce GPU stalls.
registerPreMainLoop(() => GL.newRenderingFrameStarted());
// End JS library code
// include: postlibrary.js
// This file is included after the automatically-generated JS library code
// but before the wasm module is created.
{
// Begin ATMODULES hooks
if (Module["preloadPlugins"]) preloadPlugins = Module["preloadPlugins"];
if (Module["noExitRuntime"]) noExitRuntime = Module["noExitRuntime"];
if (Module["print"]) out = Module["print"];
if (Module["printErr"]) err = Module["printErr"];
if (Module["wasmBinary"]) wasmBinary = Module["wasmBinary"];
// End ATMODULES hooks
if (Module["arguments"]) programArgs = Module["arguments"];
if (Module["thisProgram"]) thisProgram = Module["thisProgram"];
if (Module["preInit"]) {
if (typeof Module["preInit"] == "function") Module["preInit"] = [ Module["preInit"] ];
while (Module["preInit"].length > 0) {
Module["preInit"].shift()();
}
}
}
// Begin runtime exports
Module["addRunDependency"] = addRunDependency;
Module["removeRunDependency"] = removeRunDependency;
Module["ccall"] = ccall;
Module["stringToNewUTF8"] = stringToNewUTF8;
Module["FS_preloadFile"] = FS_preloadFile;
Module["FS_unlink"] = FS_unlink;
Module["FS_createPath"] = FS_createPath;
Module["FS_createDevice"] = FS_createDevice;
Module["FS_createDataFile"] = FS_createDataFile;
Module["FS_createLazyFile"] = FS_createLazyFile;
// End runtime exports
// Begin JS library exports
// End JS library exports
// end include: postlibrary.js
var ASM_CONSTS = {
681016: () => {
specialHTMLTargets["#canvas"] = Module.canvas;
}
};
function JsWrapLoggingHelpers() {
if (!Module["_decodeBase64"]) {
Module["_decodeBase64"] = function(encoded_key_ptr) {
const encodedStr = UTF8ToString(encoded_key_ptr);
return atob(encodedStr);
};
}
}
function JsOnEmptyPacketListener(output_stream_name, timestamp) {
Module._wrapEmptyPacketListenerOutput(output_stream_name, timestamp);
}
function JsOnVectorFinishedListener(output_stream_name, timestamp) {
Module._wrapSimpleListenerOutput(output_stream_name, undefined, true, timestamp);
}
function JsOnSimpleListenerBool(output_stream_name, out_data, timestamp) {
Module._wrapSimpleListenerOutput(output_stream_name, out_data, timestamp);
}
function JsOnVectorListenerBool(output_stream_name, out_data, timestamp) {
Module._wrapSimpleListenerOutput(output_stream_name, out_data, false, timestamp);
}
function JsOnSimpleListenerInt(output_stream_name, out_data, timestamp) {
Module._wrapSimpleListenerOutput(output_stream_name, out_data, timestamp);
}
function JsOnVectorListenerInt(output_stream_name, out_data, timestamp) {
Module._wrapSimpleListenerOutput(output_stream_name, out_data, false, timestamp);
}
function JsOnSimpleListenerUint(output_stream_name, out_data, timestamp) {
Module._wrapSimpleListenerOutput(output_stream_name, out_data, timestamp);
}
function JsOnVectorListenerUint(output_stream_name, out_data, timestamp) {
Module._wrapSimpleListenerOutput(output_stream_name, out_data, false, timestamp);
}
function JsOnSimpleListenerDouble(output_stream_name, out_data, timestamp) {
Module._wrapSimpleListenerOutput(output_stream_name, out_data, timestamp);
}
function JsOnVectorListenerDouble(output_stream_name, out_data, timestamp) {
Module._wrapSimpleListenerOutput(output_stream_name, out_data, false, timestamp);
}
function JsOnSimpleListenerFloat(output_stream_name, out_data, timestamp) {
Module._wrapSimpleListenerOutput(output_stream_name, out_data, timestamp);
}
function JsOnVectorListenerFloat(output_stream_name, out_data, timestamp) {
Module._wrapSimpleListenerOutput(output_stream_name, out_data, false, timestamp);
}
function JsOnSimpleListenerString(output_stream_name, out_data, timestamp) {
Module._wrapSimpleListenerOutput(output_stream_name, UTF8ToString(out_data), timestamp);
}
function JsOnVectorListenerString(output_stream_name, out_data, timestamp) {
Module._wrapSimpleListenerOutput(output_stream_name, UTF8ToString(out_data), false, timestamp);
}
function JsOnVectorListenerProto(output_stream_name, proto_ptr, proto_size, make_deep_copy, timestamp) {
const newProtoArray = make_deep_copy ? Module.HEAPU8.slice(proto_ptr, proto_ptr + proto_size) : new Uint8Array(Module.HEAPU8.buffer, proto_ptr, proto_size);
Module._wrapSimpleListenerOutput(output_stream_name, newProtoArray, false, timestamp);
}
function JsWrapSimpleListeners() {
if (!Module._wrapSimpleListenerOutput) {
Module._wrapSimpleListenerOutput = (outputStreamName, ...args) => {
if (Module.simpleListeners) {
const streamName = UTF8ToString(outputStreamName);
if (Module.simpleListeners[streamName]) {
Module.simpleListeners[streamName](...args);
}
}
};
}
if (!Module._wrapEmptyPacketListenerOutput) {
Module._wrapEmptyPacketListenerOutput = (outputStreamName, timestamp) => {
if (Module.emptyPacketListeners) {
const streamName = UTF8ToString(outputStreamName);
if (Module.emptyPacketListeners[streamName]) {
Module.emptyPacketListeners[streamName](timestamp);
}
}
};
}
}
function JsOnSimpleListenerBinaryArray(output_stream_name, binary_ptr, binary_size, make_deep_copy, timestamp) {
const newProtoArray = make_deep_copy ? Module.HEAPU8.slice(binary_ptr, binary_ptr + binary_size) : new Uint8Array(Module.HEAPU8.buffer, binary_ptr, binary_size);
Module._wrapSimpleListenerOutput(output_stream_name, newProtoArray, timestamp);
}
function __asyncjs__mediapipe_map_buffer_jspi(buffer_handle, data) {
return Asyncify.handleAsync(async () => {
const buffer = WebGPU.getJsObject(buffer_handle);
if ("mapSync" in buffer) {
buffer.mapSync(GPUMapMode.READ);
} else {
await buffer.mapAsync(GPUMapMode.READ);
}
const mapped = buffer.getMappedRange();
HEAPU8.set(new Uint8Array(mapped), data);
buffer.unmap();
});
}
function UseBottomLeftGpuOrigin() {
return (Module && Module.gpuOriginForWebTexturesIsBottomLeft);
}
function custom_emscripten_dbgn(str, len) {
if (typeof (dbg) !== "undefined") {
dbg(UTF8ToString(str, len));
} else {
if (typeof (custom_dbg) === "undefined") {
function custom_dbg(text) {
console.warn.apply(console, arguments);
}
}
custom_dbg(UTF8ToString(str, len));
}
}
function JsWrapErrorListenerInternal(code, message) {
if (Module.errorListener) {
const stringMessage = UTF8ToString(message);
Module.errorListener(code, stringMessage);
}
}
// Imports from the Wasm binary.
var _configureAudio, _addAudioToInputStream, _free, _malloc, _mediapipeLoggerGetEncodedApiKey, _registerModelResourcesGraphService, _bindTextureToStream, _addBoundTextureToStream, _addDoubleToInputStream, _addFloatToInputStream, _addBoolToInputStream, _addIntToInputStream, _addUintToInputStream, _addStringToInputStream, _addRawDataSpanToInputStream, _allocateBoolVector, _allocateFloatVector, _allocateDoubleVector, _allocateIntVector, _allocateUintVector, _allocateStringVector, _addBoolVectorEntry, _addFloatVectorEntry, _addDoubleVectorEntry, _addIntVectorEntry, _addUintVectorEntry, _addStringVectorEntry, _addBoolVectorToInputStream, _addFloatVectorToInputStream, _addDoubleVectorToInputStream, _addIntVectorToInputStream, _addUintVectorToInputStream, _addStringVectorToInputStream, _addFlatHashMapToInputStream, _addProtoToInputStream, _addEmptyPacketToInputStream, _addBoolToInputSidePacket, _addDoubleToInputSidePacket, _addFloatToInputSidePacket, _addIntToInputSidePacket, _addUintToInputSidePacket, _addStringToInputSidePacket, _addRawDataSpanToInputSidePacket, _addProtoToInputSidePacket, _addBoolVectorToInputSidePacket, _addDoubleVectorToInputSidePacket, _addFloatVectorToInputSidePacket, _addIntVectorToInputSidePacket, _addUintVectorToInputSidePacket, _addStringVectorToInputSidePacket, _attachBoolListener, _attachBoolVectorListener, _attachDoubleListener, _attachDoubleVectorListener, _attachFloatListener, _attachFloatVectorListener, _attachIntListener, _attachIntVectorListener, _attachUintListener, _attachUintVectorListener, _attachStringListener, _attachStringVectorListener, _attachProtoListener, _attachProtoVectorListener, _getGraphConfig, _emwgpuCreateBindGroup, _emwgpuCreateBindGroupLayout, _emwgpuCreateCommandBuffer, _emwgpuCreateCommandEncoder, _emwgpuCreateComputePassEncoder, _emwgpuCreateComputePipeline, _emwgpuCreateExternalTexture, _emwgpuCreatePipelineLayout, _emwgpuCreateQuerySet, _emwgpuCreateRenderBundle, _emwgpuCreateRenderBundleEncoder, _emwgpuCreateRenderPassEncoder, _emwgpuCreateRenderPipeline, _emwgpuCreateSampler, _emwgpuCreateSurface, _emwgpuCreateTexture, _emwgpuCreateTextureView, _emwgpuCreateAdapter, _emwgpuImportBuffer, _emwgpuCreateDevice, _emwgpuCreateQueue, _emwgpuCreateShaderModule, _clearSubgraphs, _pushBinarySubgraph, _pushTextSubgraph, _changeBinaryGraph, _changeTextGraph, _processGl, _process, _bindTextureToCanvas, _requestShaderRefreshOnGraphChange, _waitUntilIdle, _closeGraph, _setAutoRenderToScreen, _emscripten_builtin_memalign, __emscripten_tempret_set, __emscripten_stack_restore, __emscripten_stack_alloc, _emscripten_stack_get_current, dynCall_ji, dynCall_jii, dynCall_iiiijij, dynCall_viji, dynCall_iiiji, dynCall_ijj, dynCall_jjj, dynCall_iiiijj, dynCall_viijj, dynCall_viiijjj, dynCall_vij, dynCall_viijii, dynCall_vijjj, dynCall_vj, dynCall_viij, dynCall_jiji, dynCall_iiiiij, dynCall_iiiiijj, dynCall_iiiiiijj, memory, _kVersionStampBuildChangelistStr, _kVersionStampCitcSnapshotStr, _kVersionStampCitcWorkspaceIdStr, _kVersionStampSourceUriStr, _kVersionStampBuildClientStr, _kVersionStampBuildClientMintStatusStr, _kVersionStampBuildCompilerStr, _kVersionStampBuildDateTimePstStr, _kVersionStampBuildDepotPathStr, _kVersionStampBuildIdStr, _kVersionStampBuildInfoStr, _kVersionStampBuildLabelStr, _kVersionStampBuildTargetStr, _kVersionStampBuildTimestampStr, _kVersionStampBuildToolStr, _kVersionStampG3BuildTargetStr, _kVersionStampVerifiableStr, _kVersionStampBuildFdoTypeStr, _kVersionStampBuildBaselineChangelistStr, _kVersionStampBuildLtoTypeStr, _kVersionStampBuildPropellerTypeStr, _kVersionStampBuildPghoTypeStr, _kVersionStampBuildFdoProfileChangelistStr, _kVersionStampBuildMemprofProfileChangelistStr, _kVersionStampBuildUsernameStr, _kVersionStampBuildHostnameStr, _kVersionStampBuildDirectoryStr, _kVersionStampBuildChangelistInt, _kVersionStampCitcSnapshotInt, _kVersionStampBuildClientMintStatusInt, _kVersionStampBuildTimestampInt, _kVersionStampVerifiableInt, _kVersionStampBuildCoverageEnabledInt, _kVersionStampBuildBaselineChangelistInt, _kVersionStampPrecookedTimestampStr, _kVersionStampPrecookedClientInfoStr, __indirect_function_table, _kVersionStampBuildHasHardeningProtobuf, wasmMemory, wasmTable;
function assignWasmExports(wasmExports) {
_configureAudio = Module["_configureAudio"] = wasmExports["Tb"];
_addAudioToInputStream = Module["_addAudioToInputStream"] = wasmExports["Vb"];
_free = Module["_free"] = wasmExports["Wb"];
_malloc = Module["_malloc"] = wasmExports["Xb"];
_mediapipeLoggerGetEncodedApiKey = Module["_mediapipeLoggerGetEncodedApiKey"] = wasmExports["Yb"];
_registerModelResourcesGraphService = Module["_registerModelResourcesGraphService"] = wasmExports["Zb"];
_bindTextureToStream = Module["_bindTextureToStream"] = wasmExports["_b"];
_addBoundTextureToStream = Module["_addBoundTextureToStream"] = wasmExports["$b"];
_addDoubleToInputStream = Module["_addDoubleToInputStream"] = wasmExports["ac"];
_addFloatToInputStream = Module["_addFloatToInputStream"] = wasmExports["bc"];
_addBoolToInputStream = Module["_addBoolToInputStream"] = wasmExports["cc"];
_addIntToInputStream = Module["_addIntToInputStream"] = wasmExports["dc"];
_addUintToInputStream = Module["_addUintToInputStream"] = wasmExports["ec"];
_addStringToInputStream = Module["_addStringToInputStream"] = wasmExports["fc"];
_addRawDataSpanToInputStream = Module["_addRawDataSpanToInputStream"] = wasmExports["gc"];
_allocateBoolVector = Module["_allocateBoolVector"] = wasmExports["hc"];
_allocateFloatVector = Module["_allocateFloatVector"] = wasmExports["ic"];
_allocateDoubleVector = Module["_allocateDoubleVector"] = wasmExports["jc"];
_allocateIntVector = Module["_allocateIntVector"] = wasmExports["kc"];
_allocateUintVector = Module["_allocateUintVector"] = wasmExports["lc"];
_allocateStringVector = Module["_allocateStringVector"] = wasmExports["mc"];
_addBoolVectorEntry = Module["_addBoolVectorEntry"] = wasmExports["nc"];
_addFloatVectorEntry = Module["_addFloatVectorEntry"] = wasmExports["oc"];
_addDoubleVectorEntry = Module["_addDoubleVectorEntry"] = wasmExports["pc"];
_addIntVectorEntry = Module["_addIntVectorEntry"] = wasmExports["qc"];
_addUintVectorEntry = Module["_addUintVectorEntry"] = wasmExports["rc"];
_addStringVectorEntry = Module["_addStringVectorEntry"] = wasmExports["sc"];
_addBoolVectorToInputStream = Module["_addBoolVectorToInputStream"] = wasmExports["tc"];
_addFloatVectorToInputStream = Module["_addFloatVectorToInputStream"] = wasmExports["uc"];
_addDoubleVectorToInputStream = Module["_addDoubleVectorToInputStream"] = wasmExports["vc"];
_addIntVectorToInputStream = Module["_addIntVectorToInputStream"] = wasmExports["wc"];
_addUintVectorToInputStream = Module["_addUintVectorToInputStream"] = wasmExports["xc"];
_addStringVectorToInputStream = Module["_addStringVectorToInputStream"] = wasmExports["yc"];
_addFlatHashMapToInputStream = Module["_addFlatHashMapToInputStream"] = wasmExports["zc"];
_addProtoToInputStream = Module["_addProtoToInputStream"] = wasmExports["Ac"];
_addEmptyPacketToInputStream = Module["_addEmptyPacketToInputStream"] = wasmExports["Bc"];
_addBoolToInputSidePacket = Module["_addBoolToInputSidePacket"] = wasmExports["Cc"];
_addDoubleToInputSidePacket = Module["_addDoubleToInputSidePacket"] = wasmExports["Dc"];
_addFloatToInputSidePacket = Module["_addFloatToInputSidePacket"] = wasmExports["Ec"];
_addIntToInputSidePacket = Module["_addIntToInputSidePacket"] = wasmExports["Fc"];
_addUintToInputSidePacket = Module["_addUintToInputSidePacket"] = wasmExports["Gc"];
_addStringToInputSidePacket = Module["_addStringToInputSidePacket"] = wasmExports["Hc"];
_addRawDataSpanToInputSidePacket = Module["_addRawDataSpanToInputSidePacket"] = wasmExports["Ic"];
_addProtoToInputSidePacket = Module["_addProtoToInputSidePacket"] = wasmExports["Jc"];
_addBoolVectorToInputSidePacket = Module["_addBoolVectorToInputSidePacket"] = wasmExports["Kc"];
_addDoubleVectorToInputSidePacket = Module["_addDoubleVectorToInputSidePacket"] = wasmExports["Lc"];
_addFloatVectorToInputSidePacket = Module["_addFloatVectorToInputSidePacket"] = wasmExports["Mc"];
_addIntVectorToInputSidePacket = Module["_addIntVectorToInputSidePacket"] = wasmExports["Nc"];
_addUintVectorToInputSidePacket = Module["_addUintVectorToInputSidePacket"] = wasmExports["Oc"];
_addStringVectorToInputSidePacket = Module["_addStringVectorToInputSidePacket"] = wasmExports["Pc"];
_attachBoolListener = Module["_attachBoolListener"] = wasmExports["Qc"];
_attachBoolVectorListener = Module["_attachBoolVectorListener"] = wasmExports["Rc"];
_attachDoubleListener = Module["_attachDoubleListener"] = wasmExports["Sc"];
_attachDoubleVectorListener = Module["_attachDoubleVectorListener"] = wasmExports["Tc"];
_attachFloatListener = Module["_attachFloatListener"] = wasmExports["Uc"];
_attachFloatVectorListener = Module["_attachFloatVectorListener"] = wasmExports["Vc"];
_attachIntListener = Module["_attachIntListener"] = wasmExports["Wc"];
_attachIntVectorListener = Module["_attachIntVectorListener"] = wasmExports["Xc"];
_attachUintListener = Module["_attachUintListener"] = wasmExports["Yc"];
_attachUintVectorListener = Module["_attachUintVectorListener"] = wasmExports["Zc"];
_attachStringListener = Module["_attachStringListener"] = wasmExports["_c"];
_attachStringVectorListener = Module["_attachStringVectorListener"] = wasmExports["$c"];
_attachProtoListener = Module["_attachProtoListener"] = wasmExports["ad"];
_attachProtoVectorListener = Module["_attachProtoVectorListener"] = wasmExports["bd"];
_getGraphConfig = Module["_getGraphConfig"] = wasmExports["cd"];
_emwgpuCreateBindGroup = wasmExports["dd"];
_emwgpuCreateBindGroupLayout = wasmExports["ed"];
_emwgpuCreateCommandBuffer = wasmExports["fd"];
_emwgpuCreateCommandEncoder = wasmExports["gd"];
_emwgpuCreateComputePassEncoder = wasmExports["hd"];
_emwgpuCreateComputePipeline = wasmExports["id"];
_emwgpuCreateExternalTexture = wasmExports["jd"];
_emwgpuCreatePipelineLayout = wasmExports["kd"];
_emwgpuCreateQuerySet = wasmExports["ld"];
_emwgpuCreateRenderBundle = wasmExports["md"];
_emwgpuCreateRenderBundleEncoder = wasmExports["nd"];
_emwgpuCreateRenderPassEncoder = wasmExports["od"];
_emwgpuCreateRenderPipeline = wasmExports["pd"];
_emwgpuCreateSampler = wasmExports["qd"];
_emwgpuCreateSurface = wasmExports["rd"];
_emwgpuCreateTexture = wasmExports["sd"];
_emwgpuCreateTextureView = wasmExports["td"];
_emwgpuCreateAdapter = wasmExports["ud"];
_emwgpuImportBuffer = wasmExports["vd"];
_emwgpuCreateDevice = wasmExports["wd"];
_emwgpuCreateQueue = wasmExports["xd"];
_emwgpuCreateShaderModule = wasmExports["yd"];
_clearSubgraphs = Module["_clearSubgraphs"] = wasmExports["zd"];
_pushBinarySubgraph = Module["_pushBinarySubgraph"] = wasmExports["Ad"];
_pushTextSubgraph = Module["_pushTextSubgraph"] = wasmExports["Bd"];
_changeBinaryGraph = Module["_changeBinaryGraph"] = wasmExports["Cd"];
_changeTextGraph = Module["_changeTextGraph"] = wasmExports["Dd"];
_processGl = Module["_processGl"] = wasmExports["Ed"];
_process = Module["_process"] = wasmExports["Fd"];
_bindTextureToCanvas = Module["_bindTextureToCanvas"] = wasmExports["Gd"];
_requestShaderRefreshOnGraphChange = Module["_requestShaderRefreshOnGraphChange"] = wasmExports["Hd"];
_waitUntilIdle = Module["_waitUntilIdle"] = wasmExports["Id"];
_closeGraph = Module["_closeGraph"] = wasmExports["Jd"];
_setAutoRenderToScreen = Module["_setAutoRenderToScreen"] = wasmExports["Kd"];
_emscripten_builtin_memalign = wasmExports["Md"];
__emscripten_tempret_set = wasmExports["Nd"];
__emscripten_stack_restore = wasmExports["Od"];
__emscripten_stack_alloc = wasmExports["Pd"];
_emscripten_stack_get_current = wasmExports["Qd"];
dynCall_ji = wasmExports["dynCall_ji"];
dynCall_jii = wasmExports["dynCall_jii"];
dynCall_iiiijij = wasmExports["dynCall_iiiijij"];
dynCall_viji = wasmExports["dynCall_viji"];
dynCall_iiiji = wasmExports["dynCall_iiiji"];
dynCall_ijj = wasmExports["dynCall_ijj"];
dynCall_jjj = wasmExports["dynCall_jjj"];
dynCall_iiiijj = wasmExports["dynCall_iiiijj"];
dynCall_viijj = wasmExports["dynCall_viijj"];
dynCall_viiijjj = wasmExports["dynCall_viiijjj"];
dynCall_vij = wasmExports["dynCall_vij"];
dynCall_viijii = wasmExports["dynCall_viijii"];
dynCall_vijjj = wasmExports["dynCall_vijjj"];
dynCall_vj = wasmExports["dynCall_vj"];
dynCall_viij = wasmExports["dynCall_viij"];
dynCall_jiji = wasmExports["dynCall_jiji"];
dynCall_iiiiij = wasmExports["dynCall_iiiiij"];
dynCall_iiiiijj = wasmExports["dynCall_iiiiijj"];
dynCall_iiiiiijj = wasmExports["dynCall_iiiiiijj"];
memory = wasmMemory = wasmExports["hb"];
_kVersionStampBuildChangelistStr = Module["_kVersionStampBuildChangelistStr"] = wasmExports["jb"].value;
_kVersionStampCitcSnapshotStr = Module["_kVersionStampCitcSnapshotStr"] = wasmExports["kb"].value;
_kVersionStampCitcWorkspaceIdStr = Module["_kVersionStampCitcWorkspaceIdStr"] = wasmExports["lb"].value;
_kVersionStampSourceUriStr = Module["_kVersionStampSourceUriStr"] = wasmExports["mb"].value;
_kVersionStampBuildClientStr = Module["_kVersionStampBuildClientStr"] = wasmExports["nb"].value;
_kVersionStampBuildClientMintStatusStr = Module["_kVersionStampBuildClientMintStatusStr"] = wasmExports["ob"].value;
_kVersionStampBuildCompilerStr = Module["_kVersionStampBuildCompilerStr"] = wasmExports["pb"].value;
_kVersionStampBuildDateTimePstStr = Module["_kVersionStampBuildDateTimePstStr"] = wasmExports["qb"].value;
_kVersionStampBuildDepotPathStr = Module["_kVersionStampBuildDepotPathStr"] = wasmExports["rb"].value;
_kVersionStampBuildIdStr = Module["_kVersionStampBuildIdStr"] = wasmExports["sb"].value;
_kVersionStampBuildInfoStr = Module["_kVersionStampBuildInfoStr"] = wasmExports["tb"].value;
_kVersionStampBuildLabelStr = Module["_kVersionStampBuildLabelStr"] = wasmExports["ub"].value;
_kVersionStampBuildTargetStr = Module["_kVersionStampBuildTargetStr"] = wasmExports["vb"].value;
_kVersionStampBuildTimestampStr = Module["_kVersionStampBuildTimestampStr"] = wasmExports["wb"].value;
_kVersionStampBuildToolStr = Module["_kVersionStampBuildToolStr"] = wasmExports["xb"].value;
_kVersionStampG3BuildTargetStr = Module["_kVersionStampG3BuildTargetStr"] = wasmExports["yb"].value;
_kVersionStampVerifiableStr = Module["_kVersionStampVerifiableStr"] = wasmExports["zb"].value;
_kVersionStampBuildFdoTypeStr = Module["_kVersionStampBuildFdoTypeStr"] = wasmExports["Ab"].value;
_kVersionStampBuildBaselineChangelistStr = Module["_kVersionStampBuildBaselineChangelistStr"] = wasmExports["Bb"].value;
_kVersionStampBuildLtoTypeStr = Module["_kVersionStampBuildLtoTypeStr"] = wasmExports["Cb"].value;
_kVersionStampBuildPropellerTypeStr = Module["_kVersionStampBuildPropellerTypeStr"] = wasmExports["Db"].value;
_kVersionStampBuildPghoTypeStr = Module["_kVersionStampBuildPghoTypeStr"] = wasmExports["Eb"].value;
_kVersionStampBuildFdoProfileChangelistStr = Module["_kVersionStampBuildFdoProfileChangelistStr"] = wasmExports["Fb"].value;
_kVersionStampBuildMemprofProfileChangelistStr = Module["_kVersionStampBuildMemprofProfileChangelistStr"] = wasmExports["Gb"].value;
_kVersionStampBuildUsernameStr = Module["_kVersionStampBuildUsernameStr"] = wasmExports["Hb"].value;
_kVersionStampBuildHostnameStr = Module["_kVersionStampBuildHostnameStr"] = wasmExports["Ib"].value;
_kVersionStampBuildDirectoryStr = Module["_kVersionStampBuildDirectoryStr"] = wasmExports["Jb"].value;
_kVersionStampBuildChangelistInt = Module["_kVersionStampBuildChangelistInt"] = wasmExports["Kb"].value;
_kVersionStampCitcSnapshotInt = Module["_kVersionStampCitcSnapshotInt"] = wasmExports["Lb"].value;
_kVersionStampBuildClientMintStatusInt = Module["_kVersionStampBuildClientMintStatusInt"] = wasmExports["Mb"].value;
_kVersionStampBuildTimestampInt = Module["_kVersionStampBuildTimestampInt"] = wasmExports["Nb"].value;
_kVersionStampVerifiableInt = Module["_kVersionStampVerifiableInt"] = wasmExports["Ob"].value;
_kVersionStampBuildCoverageEnabledInt = Module["_kVersionStampBuildCoverageEnabledInt"] = wasmExports["Pb"].value;
_kVersionStampBuildBaselineChangelistInt = Module["_kVersionStampBuildBaselineChangelistInt"] = wasmExports["Qb"].value;
_kVersionStampPrecookedTimestampStr = Module["_kVersionStampPrecookedTimestampStr"] = wasmExports["Rb"].value;
_kVersionStampPrecookedClientInfoStr = Module["_kVersionStampPrecookedClientInfoStr"] = wasmExports["Sb"].value;
__indirect_function_table = wasmTable = wasmExports["Ub"];
_kVersionStampBuildHasHardeningProtobuf = Module["_kVersionStampBuildHasHardeningProtobuf"] = wasmExports["Ld"].value;
}
var wasmImports = {
/** @export */ gb: JsOnEmptyPacketListener,
/** @export */ P: JsOnSimpleListenerBinaryArray,
/** @export */ fb: JsOnSimpleListenerBool,
/** @export */ eb: JsOnSimpleListenerDouble,
/** @export */ db: JsOnSimpleListenerFloat,
/** @export */ cb: JsOnSimpleListenerInt,
/** @export */ bb: JsOnSimpleListenerString,
/** @export */ ab: JsOnSimpleListenerUint,
/** @export */ g: JsOnVectorFinishedListener,
/** @export */ $a: JsOnVectorListenerBool,
/** @export */ _a: JsOnVectorListenerDouble,
/** @export */ Za: JsOnVectorListenerFloat,
/** @export */ Ya: JsOnVectorListenerInt,
/** @export */ Xa: JsOnVectorListenerProto,
/** @export */ Wa: JsOnVectorListenerString,
/** @export */ Va: JsOnVectorListenerUint,
/** @export */ Ua: JsWrapErrorListenerInternal,
/** @export */ Ta: JsWrapLoggingHelpers,
/** @export */ a: JsWrapSimpleListeners,
/** @export */ O: UseBottomLeftGpuOrigin,
/** @export */ W: __asyncjs__mediapipe_map_buffer_jspi,
/** @export */ Sa: ___syscall_dup,
/** @export */ Ra: ___syscall_faccessat,
/** @export */ N: ___syscall_fcntl64,
/** @export */ Qa: ___syscall_fstat64,
/** @export */ ca: ___syscall_ftruncate64,
/** @export */ Pa: ___syscall_ioctl,
/** @export */ Oa: ___syscall_lstat64,
/** @export */ Na: ___syscall_newfstatat,
/** @export */ M: ___syscall_openat,
/** @export */ Ma: ___syscall_stat64,
/** @export */ Ha: __abort_js,
/** @export */ $: __gmtime_js,
/** @export */ _: __localtime_js,
/** @export */ Z: __mktime_js,
/** @export */ Y: __mmap_js,
/** @export */ X: __munmap_js,
/** @export */ Ga: __tzset_js,
/** @export */ ba: _clock_time_get,
/** @export */ Fa: custom_emscripten_dbgn,
/** @export */ Ea: _emscripten_asm_const_int,
/** @export */ t: _emscripten_errn,
/** @export */ Da: _emscripten_get_heap_max,
/** @export */ b: _emscripten_get_now,
/** @export */ Ca: _emscripten_has_asyncify,
/** @export */ Ba: _emscripten_outn,
/** @export */ Aa: _emscripten_pc_get_function,
/** @export */ za: _emscripten_resize_heap,
/** @export */ K: _emscripten_stack_snapshot,
/** @export */ ya: _emscripten_stack_unwind_buffer,
/** @export */ xa: _emscripten_webgl_create_context,
/** @export */ wa: _emscripten_webgl_destroy_context,
/** @export */ va: _emscripten_webgl_get_context_attributes,
/** @export */ i: _emscripten_webgl_get_current_context,
/** @export */ ua: _emscripten_webgl_make_context_current,
/** @export */ ta: _emwgpuBufferDestroy,
/** @export */ c: _emwgpuDelete,
/** @export */ sa: _emwgpuDeviceCreateBuffer,
/** @export */ ra: _emwgpuDeviceDestroy,
/** @export */ La: _environ_get,
/** @export */ Ka: _environ_sizes_get,
/** @export */ J: _exit,
/** @export */ v: _fd_close,
/** @export */ L: _fd_read,
/** @export */ aa: _fd_seek,
/** @export */ u: _fd_write,
/** @export */ s: _glActiveTexture,
/** @export */ I: _glAttachShader,
/** @export */ qa: _glBindAttribLocation,
/** @export */ f: _glBindBuffer,
/** @export */ m: _glBindFramebuffer,
/** @export */ e: _glBindTexture,
/** @export */ r: _glBufferData,
/** @export */ h: _glClientWaitSync,
/** @export */ pa: _glCompileShader,
/** @export */ oa: _glCreateProgram,
/** @export */ na: _glCreateShader,
/** @export */ H: _glDeleteFramebuffers,
/** @export */ ma: _glDeleteProgram,
/** @export */ G: _glDeleteShader,
/** @export */ l: _glDeleteSync,
/** @export */ F: _glDeleteTextures,
/** @export */ E: _glDetachShader,
/** @export */ D: _glDisableVertexAttribArray,
/** @export */ la: _glDrawArrays,
/** @export */ C: _glEnableVertexAttribArray,
/** @export */ B: _glFenceSync,
/** @export */ k: _glFinish,
/** @export */ q: _glFramebufferTexture2D,
/** @export */ A: _glGenBuffers,
/** @export */ ka: _glGenFramebuffers,
/** @export */ p: _glGenTextures,
/** @export */ j: _glGetError,
/** @export */ z: _glGetIntegerv,
/** @export */ o: _glGetString,
/** @export */ ja: _glGetUniformLocation,
/** @export */ ia: _glLinkProgram,
/** @export */ n: _glPixelStorei,
/** @export */ y: _glReadPixels,
/** @export */ ha: _glShaderSource,
/** @export */ ga: _glTexImage2D,
/** @export */ d: _glTexParameteri,
/** @export */ x: _glTexStorage2D,
/** @export */ fa: _glUniform1i,
/** @export */ ea: _glUseProgram,
/** @export */ w: _glVertexAttribPointer,
/** @export */ da: _glViewport,
/** @export */ Ja: _proc_exit,
/** @export */ Ia: _random_get,
/** @export */ V: _wgpuCommandEncoderCopyTextureToBuffer,
/** @export */ U: _wgpuCommandEncoderFinish,
/** @export */ T: _wgpuDeviceCreateCommandEncoder,
/** @export */ S: _wgpuQueueSubmit,
/** @export */ R: _wgpuTextureDestroy,
/** @export */ Q: _wgpuTextureGetFormat
};
// include: postamble.js
// === Auto-generated postamble setup entry stuff ===
async function run() {
if (runDependencies > 0) {
await new Promise(resolve => dependenciesFulfilled = resolve);
}
preRun();
// a preRun added a dependency, run will be called later
if (runDependencies > 0) {
await new Promise(resolve => dependenciesFulfilled = resolve);
}
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
Module["calledRun"] = true;
if (ABORT) return;
initRuntime();
Module["onRuntimeInitialized"]?.();
postRun();
}
if (Module["setStatus"]) {
Module["setStatus"]("Running...");
// Yield the main thread to allow the browser to paint "Running...", then clear
// the status text after the synchronous doRun() completes.
await new Promise(resolve => {
setTimeout(() => {
setTimeout(() => Module["setStatus"](""), 1);
doRun();
resolve();
}, 1);
});
} else {
doRun();
}
}
var wasmExports;
// In modularize mode the generated code is within a factory function so we
// can use await here (since it's not top-level-await).
wasmExports = await createWasm();
await run();
return Module;
};
})();
// Export using a UMD style export, or ES6 exports if selected
if (typeof exports === 'object' && typeof module === 'object') {
module.exports = ModuleFactory;
// This default export looks redundant, but it allows TS to import this
// commonjs style module.
module.exports.default = ModuleFactory;
} else if (typeof define === 'function' && define['amd'])
define([], () => ModuleFactory);