20382848403

Committed 19 Dec 2025 09:20PM UTC coverage: 35.219% (+0.1%) from 35.095%

Build # 20382848403

Build Type

push

github

Committed by

web-flow

Commit Message

feat: Upgrade to handle ArrayBufferLike (#3271)

Coverage Stats

1190 of 2002 branches covered (59.44%)

Branch coverage included in aggregate %.

157 of 269 new or added lines in 41 files covered. (58.36%)

3 existing lines in 3 files now uncovered.

37536 of 107957 relevant lines covered (34.77%)

0.79 hits per line

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40.35

/modules/polyfills/src/images/parse-image-node.ts

// loaders.gl
// SPDX-License-Identifier: MIT
// Copyright (c) vis.gl contributors

import getPixels from 'get-pixels';

/** Declares which image format mime types this loader polyfill supports */
export const NODE_FORMAT_SUPPORT = ['image/png', 'image/jpeg', 'image/gif'];

// Note: These types are also defined in @loaders.gl/images and need to be kept in sync
type NDArray = {
  shape: number[];
  data: Uint8Array;
  width: number;
  height: number;
  components: number;
  layers: number[];
};

export async function parseImageNode(arrayBuffer: ArrayBuffer, mimeType: string): Promise<NDArray> {
  if (!mimeType) {
    throw new Error('MIMEType is required to parse image under Node.js');
  }

  const buffer = arrayBuffer instanceof Buffer ? arrayBuffer : Buffer.from(arrayBuffer);
  const ndarray = await getPixelsAsync(buffer, mimeType);
  return ndarray;
}

// TODO - check if getPixels callback is asynchronous if provided with buffer input
// if not, parseImage can be a sync function
function getPixelsAsync(buffer: Buffer, mimeType: string): Promise<NDArray> {
  return new Promise<NDArray>((resolve) =>
    getPixels(buffer as any, mimeType, (err, ndarray) => {
      if (err) {
        throw err;
      }

      const shape = [...ndarray.shape];
      const layers = ndarray.shape.length === 4 ? ndarray.shape.shift() : 1;
      const data = ndarray.data instanceof Buffer ? new Uint8Array(ndarray.data) : ndarray.data;

      // extract width/height etc
      resolve({
        shape,
        data,
        width: ndarray.shape[0],
        height: ndarray.shape[1],
        components: ndarray.shape[2],
        // TODO - error
        layers: layers ? [layers] : []
      });
    })
  );
}

1	// loaders.gl	1✔
2	// SPDX-License-Identifier: MIT	1✔
3	// Copyright (c) vis.gl contributors	1✔
4		1✔
5	import getPixels from 'get-pixels';	1!
6		1✔
7	/** Declares which image format mime types this loader polyfill supports */	1✔
8	export const NODE_FORMAT_SUPPORT = ['image/png', 'image/jpeg', 'image/gif'];	1✔
9		1✔
10	// Note: These types are also defined in @loaders.gl/images and need to be kept in sync	1✔
11	type NDArray = {	1✔
12	shape: number[];	1✔
13	data: Uint8Array;	1✔
14	width: number;	1✔
15	height: number;	1✔
16	components: number;	1✔
17	layers: number[];	1✔
18	};	1✔
19		1✔
20	export async function parseImageNode(arrayBuffer: ArrayBuffer, mimeType: string): Promise<NDArray> {	×
21	if (!mimeType) {	×
22	throw new Error('MIMEType is required to parse image under Node.js');	×
23	}	×
24		×
25	const buffer = arrayBuffer instanceof Buffer ? arrayBuffer : Buffer.from(arrayBuffer);	×
26	const ndarray = await getPixelsAsync(buffer, mimeType);	×
27	return ndarray;	×
28	}	×
29		1✔
30	// TODO - check if getPixels callback is asynchronous if provided with buffer input	1✔
31	// if not, parseImage can be a sync function	1✔
32	function getPixelsAsync(buffer: Buffer, mimeType: string): Promise<NDArray> {	×
33	return new Promise<NDArray>((resolve) =>	×
NEW 34	getPixels(buffer as any, mimeType, (err, ndarray) => {	×
35	if (err) {	×
36	throw err;	×
37	}	×
38		×
39	const shape = [...ndarray.shape];	×
40	const layers = ndarray.shape.length === 4 ? ndarray.shape.shift() : 1;	×
41	const data = ndarray.data instanceof Buffer ? new Uint8Array(ndarray.data) : ndarray.data;	×
42		×
43	// extract width/height etc	×
44	resolve({	×
45	shape,	×
46	data,	×
47	width: ndarray.shape[0],	×
48	height: ndarray.shape[1],	×
49	components: ndarray.shape[2],	×
50	// TODO - error	×
51	layers: layers ? [layers] : []	×
52	});	×
53	})	×
54	);	×
55	}	×

visgl / loaders.gl / 20382848403

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