Files
squoosh/src/codecs/decoders.ts
Jason Miller 7d42d4f973 Add a serviceworker (#234)
* Add a serviceworker

* rename + fix random extra character

* Fixing worker typings

* Fixing types properly this time.

* Once of those rare cases where this matters.

* Naming the things.

* Move registration to the app (so we can use snackbar later)

* Moving SW plugin later so it picks up things like HTML

* MVP service worker

* Two stage-service worker

* Fix prerendering by conditionally awaiting Custom Elements polyfill.

* Fix icon 404's

* add doc comment to autoswplugin

* Fix type
2018-11-08 12:02:05 +00:00

21 lines
650 B
TypeScript

import { nativeDecode, sniffMimeType, canDecodeImage } from '../lib/util';
import Processor from './processor';
import webpDataUrl from 'url-loader!./tiny.webp';
const nativeWebPSupported = canDecodeImage(webpDataUrl);
export async function decodeImage(blob: Blob, processor: Processor): Promise<ImageData> {
const mimeType = await sniffMimeType(blob);
try {
if (mimeType === 'image/webp' && !(await nativeWebPSupported)) {
return await processor.webpDecode(blob);
}
// Otherwise, just throw it at the browser's decoder.
return await nativeDecode(blob);
} catch (err) {
throw Error("Couldn't decode image");
}
}