image-size/dist/esm/types/ktx.js

get dimensions of any image file

import { readUInt32LE, toUTF8String } from './utils.js';
export const KTX = {
    validate: (input) => {
        const signature = toUTF8String(input, 1, 7);
        return ['KTX 11', 'KTX 20'].includes(signature);
    },
    calculate: (input) => {
        const type = input[5] === 0x31 ? 'ktx' : 'ktx2';
        const offset = type === 'ktx' ? 36 : 20;
        return {
            height: readUInt32LE(input, offset + 4),
            width: readUInt32LE(input, offset),
            type,
        };
    },
};