Files
squoosh/codecs/oxipng/pkg/squoosh_oxipng.js
Ingvar Stepanyan 0747d2c419 Rework fallback for postMessage issue
Now initialise all workers with module+memory separately, and then instead of using postMessage to send thread pointers, push them into a crossbeam-deque on the Rust side.

Rayon already depends on crossbeam-dequeue, so we're not even adding another dependency, and this model allows us to push "tasks" (thread pointers) on the main thread and pop them on worker threads in arbitrary order without sacrificing correctness.
2020-10-07 20:42:48 +01:00

181 lines
5.0 KiB
JavaScript

let wasm;
let memory;
const heap = new Array(32).fill(undefined);
heap.push(undefined, null, true, false);
let heap_next = heap.length;
function addHeapObject(obj) {
if (heap_next === heap.length) heap.push(heap.length + 1);
const idx = heap_next;
heap_next = heap[idx];
heap[idx] = obj;
return idx;
}
let cachedTextDecoder = new TextDecoder('utf-8', { ignoreBOM: true, fatal: true });
cachedTextDecoder.decode();
let cachegetUint8Memory0 = null;
function getUint8Memory0() {
if (cachegetUint8Memory0 === null || cachegetUint8Memory0.buffer !== wasm.__wbindgen_export_0.buffer) {
cachegetUint8Memory0 = new Uint8Array(wasm.__wbindgen_export_0.buffer);
}
return cachegetUint8Memory0;
}
function getStringFromWasm0(ptr, len) {
return cachedTextDecoder.decode(getUint8Memory0().slice(ptr, ptr + len));
}
function getObject(idx) { return heap[idx]; }
function dropObject(idx) {
if (idx < 36) return;
heap[idx] = heap_next;
heap_next = idx;
}
function takeObject(idx) {
const ret = getObject(idx);
dropObject(idx);
return ret;
}
/**
* @returns {any}
*/
export function worker_initializer() {
var ret = wasm.worker_initializer();
return takeObject(ret);
}
/**
* @param {number} num
*/
export function start_main_thread(num) {
wasm.start_main_thread(num);
}
/**
*/
export function start_worker_thread() {
wasm.start_worker_thread();
}
let WASM_VECTOR_LEN = 0;
function passArray8ToWasm0(arg, malloc) {
const ptr = malloc(arg.length * 1);
getUint8Memory0().set(arg, ptr / 1);
WASM_VECTOR_LEN = arg.length;
return ptr;
}
let cachegetInt32Memory0 = null;
function getInt32Memory0() {
if (cachegetInt32Memory0 === null || cachegetInt32Memory0.buffer !== wasm.__wbindgen_export_0.buffer) {
cachegetInt32Memory0 = new Int32Array(wasm.__wbindgen_export_0.buffer);
}
return cachegetInt32Memory0;
}
function getArrayU8FromWasm0(ptr, len) {
return getUint8Memory0().subarray(ptr / 1, ptr / 1 + len);
}
/**
* @param {Uint8Array} data
* @param {number} level
* @returns {Uint8Array}
*/
export function optimise(data, level) {
try {
const retptr = wasm.__wbindgen_export_1.value - 16;
wasm.__wbindgen_export_1.value = retptr;
var ptr0 = passArray8ToWasm0(data, wasm.__wbindgen_malloc);
var len0 = WASM_VECTOR_LEN;
wasm.optimise(retptr, ptr0, len0, level);
var r0 = getInt32Memory0()[retptr / 4 + 0];
var r1 = getInt32Memory0()[retptr / 4 + 1];
var v1 = getArrayU8FromWasm0(r0, r1).slice();
wasm.__wbindgen_free(r0, r1 * 1);
return v1;
} finally {
wasm.__wbindgen_export_1.value += 16;
}
}
async function load(module, imports, maybe_memory) {
if (typeof Response === 'function' && module instanceof Response) {
memory = imports.wbg.memory = new WebAssembly.Memory({initial:17,maximum:16384,shared:true});
if (typeof WebAssembly.instantiateStreaming === 'function') {
try {
return await WebAssembly.instantiateStreaming(module, imports);
} catch (e) {
if (module.headers.get('Content-Type') != 'application/wasm') {
console.warn("`WebAssembly.instantiateStreaming` failed because your server does not serve wasm with `application/wasm` MIME type. Falling back to `WebAssembly.instantiate` which is slower. Original error:\n", e);
} else {
throw e;
}
}
}
const bytes = await module.arrayBuffer();
return await WebAssembly.instantiate(bytes, imports);
} else {
memory = imports.wbg.memory = maybe_memory;
const instance = await WebAssembly.instantiate(module, imports);
if (instance instanceof WebAssembly.Instance) {
return { instance, module };
} else {
return instance;
}
}
}
async function init(input, maybe_memory) {
if (typeof input === 'undefined') {
input = import.meta.url.replace(/\.js$/, '_bg.wasm');
}
const imports = {};
imports.wbg = {};
imports.wbg.__wbindgen_module = function() {
var ret = init.__wbindgen_wasm_module;
return addHeapObject(ret);
};
imports.wbg.__wbindgen_memory = function() {
var ret = wasm.__wbindgen_export_0;
return addHeapObject(ret);
};
imports.wbg.__wbg_of_6510501edc06d65e = function(arg0, arg1) {
var ret = Array.of(takeObject(arg0), takeObject(arg1));
return addHeapObject(ret);
};
imports.wbg.__wbindgen_throw = function(arg0, arg1) {
throw new Error(getStringFromWasm0(arg0, arg1));
};
if (typeof input === 'string' || (typeof Request === 'function' && input instanceof Request) || (typeof URL === 'function' && input instanceof URL)) {
input = fetch(input);
}
const { instance, module } = await load(await input, imports, maybe_memory);
wasm = instance.exports;
init.__wbindgen_wasm_module = module;
wasm.__wbindgen_start();
return wasm;
}
export default init;