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jellyfin-web/src/components/images/blurhash.worker.ts

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2021-11-04 20:07:07 +01:00
import { decode } from 'blurhash';
import { expose } from 'comlink';
/**
* Decodes blurhash outside the main thread, in a web worker
*
* @param {string} hash - Hash to decode.
* @param {number} width - Width of the decoded pixel array
* @param {number} height - Height of the decoded pixel array.
* @param {number} punch - Contrast of the decoded pixels
* @returns {Uint8ClampedArray} - Returns the decoded pixels in the proxied response by Comlink
*/
function getPixels({
hash,
width,
height
}): Uint8ClampedArray {
try {
return decode(hash, width, height);
} catch {
throw new TypeError(`Blurhash ${hash} is not valid`);
}
}
expose(getPixels);