Function uint32BE

packages/engine/src/utils/alphaBlit.test.ts:17–21

(n: number)

// ── PNG construction helpers ─────────────────────────────────────────────────

function uint32BE(n: number): Buffer {
  const b = Buffer.allocUnsafe(4);
  b.writeUInt32BE(n, 0);
  return b;
}

function crc32(data: Buffer): number {
  let crc = 0xffffffff;