mirror of
https://github.com/GoogleChromeLabs/squoosh.git
synced 2025-11-14 09:39:15 +00:00
51 lines
1.5 KiB
TypeScript
51 lines
1.5 KiB
TypeScript
/**
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* Copyright 2020 Google Inc. All Rights Reserved.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import { EncodeOptions } from '../shared/meta';
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import { threads } from 'wasm-feature-detect';
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async function initMT() {
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const {
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default: init,
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initThreadPool,
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optimise,
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} = await import('codecs/oxipng/pkg-parallel/squoosh_oxipng');
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await init();
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await initThreadPool(navigator.hardwareConcurrency);
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return optimise;
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}
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async function initST() {
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const { default: init, optimise } = await import(
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'codecs/oxipng/pkg/squoosh_oxipng'
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);
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await init();
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return optimise;
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}
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let wasmReady: ReturnType<typeof initMT | typeof initST>;
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export default async function encode(
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data: ArrayBuffer,
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options: EncodeOptions,
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): Promise<ArrayBuffer> {
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if (!wasmReady) {
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wasmReady = threads().then((hasThreads: boolean) =>
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hasThreads ? initMT() : initST(),
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);
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}
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const optimise = await wasmReady;
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return optimise(new Uint8Array(data), options.level, options.interlace)
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.buffer;
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}
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