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import { decode } from "blurhash" | |
export function blurHashToDataURL(hash: string | undefined): string | undefined { | |
if (!hash) return undefined | |
const pixels = decode(hash, 32, 32) | |
const dataURL = parsePixels(pixels, 32, 32) | |
return dataURL | |
} |
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/** | |
* Convert between Uint8Array and Base64 strings | |
* Allows for any encoded JS string to be converted (as opposed to atob()/btoa() which only supports latin1) | |
* | |
* Original implementation by madmurphy on MDN | |
* @see https://developer.mozilla.org/en-US/docs/Web/API/WindowBase64/Base64_encoding_and_decoding#Solution_1_–_JavaScript%27s_UTF-16_%3E_base64 | |
*/ | |
function b64ToUint6(nChr) { | |
return nChr > 64 && nChr < 91 |