17 lines
473 B
TypeScript
17 lines
473 B
TypeScript
// Copyright 2021 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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export async function canvasToArrayBuffer(
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canvas: HTMLCanvasElement
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): Promise<ArrayBuffer> {
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const blob: Blob = await new Promise<Blob>((resolve, reject) => {
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canvas.toBlob(result => {
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if (result) {
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resolve(result);
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} else {
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reject(new Error("Couldn't convert the canvas to a Blob"));
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}
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}, 'image/webp');
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});
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return blob.arrayBuffer();
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}
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