Function getSizes

scripts/image.js:312–477

(images)

var sizesCache = {};

async function getSizes(images)
{
	await loadSharp();

	const sizes = [];
	const promises = [];
	const len = images.length;

	for(let i = 0; i < len; i++)
	{
		sizes.push(false);

		const image = images[i];

		if(!image.image || image.folder)
			continue;

		const sha = image.sha || sha1(image.path);

		if(sizesCache[sha])
		{
			sizes[i] = sizesCache[sha];
			continue;
		}

		promises.push(threads.job('getImageSizes', {useThreads: 1}, async function() {

			let size = {
				width: 1,
				height: 1,
			};

			try
			{

				const path = fileManager.realPath(image.path, -1);
				const extension = app.extname(image.image);
				const pathExtension = app.extname(path);

				if(compatible.image.heic.has(pathExtension))
				{
					if(heic === false)
						heic = require('heic-decode');

					const buffer = await fsp.readFile(path);
					const images = await heic.all({buffer});
					const properties = images[0] || {width: 1, height: 1};
					images.dispose();

					size = {
						width: properties.width,
						height: properties.height,
					};
				}
				else if(compatible.image.jp2.has(pathExtension))
				{
					if(pdfjsDecoders === false)
						await loadPdfjsDecoders();