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fa4a462517
Integrates [mozJPEG](https://github.com/mozilla/mozjpeg) and [Resize](https://github.com/PistonDevelopers/resize) using WebAssembly to optimize user uploads in the composer on the client-side. NPM libraries are sourced from our [Squoosh fork](https://github.com/discourse/squoosh/tree/discourse), which was needed because we have an older asset pipeline.
130 lines
4.4 KiB
JavaScript
130 lines
4.4 KiB
JavaScript
let wasm_bindgen;
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(function() {
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const __exports = {};
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let wasm;
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let cachegetUint8Memory0 = null;
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function getUint8Memory0() {
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if (cachegetUint8Memory0 === null || cachegetUint8Memory0.buffer !== wasm.memory.buffer) {
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cachegetUint8Memory0 = new Uint8Array(wasm.memory.buffer);
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}
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return cachegetUint8Memory0;
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}
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let WASM_VECTOR_LEN = 0;
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function passArray8ToWasm0(arg, malloc) {
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const ptr = malloc(arg.length * 1);
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getUint8Memory0().set(arg, ptr / 1);
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WASM_VECTOR_LEN = arg.length;
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return ptr;
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}
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let cachegetInt32Memory0 = null;
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function getInt32Memory0() {
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if (cachegetInt32Memory0 === null || cachegetInt32Memory0.buffer !== wasm.memory.buffer) {
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cachegetInt32Memory0 = new Int32Array(wasm.memory.buffer);
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}
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return cachegetInt32Memory0;
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}
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let cachegetUint8ClampedMemory0 = null;
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function getUint8ClampedMemory0() {
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if (cachegetUint8ClampedMemory0 === null || cachegetUint8ClampedMemory0.buffer !== wasm.memory.buffer) {
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cachegetUint8ClampedMemory0 = new Uint8ClampedArray(wasm.memory.buffer);
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}
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return cachegetUint8ClampedMemory0;
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}
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function getClampedArrayU8FromWasm0(ptr, len) {
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return getUint8ClampedMemory0().subarray(ptr / 1, ptr / 1 + len);
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}
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/**
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* @param {Uint8Array} input_image
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* @param {number} input_width
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* @param {number} input_height
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* @param {number} output_width
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* @param {number} output_height
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* @param {number} typ_idx
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* @param {boolean} premultiply
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* @param {boolean} color_space_conversion
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* @returns {Uint8ClampedArray}
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*/
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__exports.resize = function(input_image, input_width, input_height, output_width, output_height, typ_idx, premultiply, color_space_conversion) {
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try {
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const retptr = wasm.__wbindgen_add_to_stack_pointer(-16);
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var ptr0 = passArray8ToWasm0(input_image, wasm.__wbindgen_malloc);
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var len0 = WASM_VECTOR_LEN;
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wasm.resize(retptr, ptr0, len0, input_width, input_height, output_width, output_height, typ_idx, premultiply, color_space_conversion);
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var r0 = getInt32Memory0()[retptr / 4 + 0];
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var r1 = getInt32Memory0()[retptr / 4 + 1];
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var v1 = getClampedArrayU8FromWasm0(r0, r1).slice();
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wasm.__wbindgen_free(r0, r1 * 1);
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return v1;
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} finally {
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wasm.__wbindgen_add_to_stack_pointer(16);
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}
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};
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async function load(module, imports) {
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if (typeof Response === 'function' && module instanceof Response) {
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if (typeof WebAssembly.instantiateStreaming === 'function') {
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try {
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return await WebAssembly.instantiateStreaming(module, imports);
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} catch (e) {
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if (module.headers.get('Content-Type') != 'application/wasm') {
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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);
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} else {
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throw e;
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}
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}
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}
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const bytes = await module.arrayBuffer();
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return await WebAssembly.instantiate(bytes, imports);
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} else {
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const instance = await WebAssembly.instantiate(module, imports);
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if (instance instanceof WebAssembly.Instance) {
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return { instance, module };
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} else {
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return instance;
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}
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}
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}
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async function init(input) {
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if (typeof input === 'undefined') {
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let src;
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if (typeof document === 'undefined') {
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src = location.href;
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} else {
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src = document.currentScript.src;
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}
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input = src.replace(/\.js$/, '_bg.wasm');
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}
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const imports = {};
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if (typeof input === 'string' || (typeof Request === 'function' && input instanceof Request) || (typeof URL === 'function' && input instanceof URL)) {
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input = fetch(input);
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}
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const { instance, module } = await load(await input, imports);
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wasm = instance.exports;
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init.__wbindgen_wasm_module = module;
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return wasm;
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}
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wasm_bindgen = Object.assign(init, __exports);
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})();
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