17 lines
437 B
TypeScript
17 lines
437 B
TypeScript
// Copyright 2022 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import { encode83 } from 'blurhash/dist/base83';
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/* eslint-disable no-bitwise */
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export function generateBlurHash(argb = 4294704123): string {
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const R = 0xff & (argb >> 16);
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const G = 0xff & (argb >> 8);
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const B = 0xff & (argb >> 0);
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const value = (R << 16) + (G << 8) + B;
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return `00${encode83(value, 4)}`;
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}
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/* eslint-enable no-bitwise */
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