image-size/dist/types/ktx.mjs

get dimensions of any image file

// lib/types/utils.ts
var decoder = new TextDecoder();
var toUTF8String = (input, start = 0, end = input.length) => decoder.decode(input.slice(start, end));
var getView = (input, offset) => new DataView(input.buffer, input.byteOffset + offset);
var readUInt32LE = (input, offset = 0) => getView(input, offset).getUint32(0, true);

// lib/types/ktx.ts
var KTX = {
  validate: (input) => {
    const signature = toUTF8String(input, 1, 7);
    return ["KTX 11", "KTX 20"].includes(signature);
  },
  calculate: (input) => {
    const type = input[5] === 49 ? "ktx" : "ktx2";
    const offset = type === "ktx" ? 36 : 20;
    return {
      height: readUInt32LE(input, offset + 4),
      width: readUInt32LE(input, offset),
      type
    };
  }
};

export { KTX };