Oleg Grishechkin oleggrishechkin

oleggrishechkin / blurhashDataURL.ts

Last active November 17, 2023 16:43 — forked from mattiaz9/blurhashDataURL.ts

Convert blurhash to a base64 DataURL string (no canvas or node-canvas)

	import { decode } from 'blurhash';

	// source of code below https://github.com/wheany/js-png-encoder/blob/master/generatepng.js
	const DEFLATE_METHOD = String.fromCharCode(0x78, 0x01);
	const CRC_TABLE: number[] = [];
	const SIGNATURE = String.fromCharCode(137, 80, 78, 71, 13, 10, 26, 10);
	const NO_FILTER = String.fromCharCode(0);

	const makeCrcTable = () => {
	let c;