@jsquash/jpeg/encode.js

Wasm jpeg encoder and decoder supporting the browser. Repackaged from Squoosh App.

/**
 * Copyright 2020 Google Inc. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *     http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import mozjpeg_enc from './codec/enc/mozjpeg_enc.js';
import { defaultOptions } from './meta.js';
import { initEmscriptenModule } from './utils.js';
let emscriptenModule;
export async function init(module, moduleOptionOverrides) {
    emscriptenModule = initEmscriptenModule(mozjpeg_enc, module, moduleOptionOverrides);
}
export default async function encode(data, options = {}) {
    if (!emscriptenModule)
        init();
    const module = await emscriptenModule;
    const _options = { ...defaultOptions, ...options };
    const resultView = module.encode(data.data, data.width, data.height, _options);
    // wasm can’t run on SharedArrayBuffers, so we hard-cast to ArrayBuffer.
    return resultView.buffer;
}