Files
element-web/src/workers/blurhash.worker.ts
David Langley 69ee8fd96a Change License: AGPL + Element Commercial (#28856)
* Add commercial licence and update config files

* Update license in headers

* Revert "Update license in headers"

This reverts commit 7ed7949485.

* Update only spdx id

* Remove LicenseRef- from package.json

LicenseRef- no longer allowed in npm v3 package.json
This fixes the warning in the logs and failing build check.
2025-01-06 11:18:54 +00:00

36 lines
931 B
TypeScript

/*
Copyright 2024 New Vector Ltd.
Copyright 2021 The Matrix.org Foundation C.I.C.
SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
Please see LICENSE files in the repository root for full details.
*/
import { encode } from "blurhash";
import { WorkerPayload } from "./worker";
const ctx: Worker = self as any;
export interface Request {
imageData: ImageData;
}
export interface Response {
blurhash: string;
}
ctx.addEventListener("message", (event: MessageEvent<Request & WorkerPayload>): void => {
const { seq, imageData } = event.data;
const blurhash = encode(
imageData.data,
imageData.width,
imageData.height,
// use 4 components on the longer dimension, if square then both
imageData.width >= imageData.height ? 4 : 3,
imageData.height >= imageData.width ? 4 : 3,
);
ctx.postMessage({ seq, blurhash });
});