pixi.js/lib/maths/misc/pow2.js

<p align="center"> <a href="https://pixijs.com" target="_blank" rel="noopener noreferrer"> <img height="150" src="https://files.pixijs.download/branding/pixijs-logo-transparent-dark.svg?v=1" alt="PixiJS logo"> </a> </p> <br/> <p align="center">

'use strict';

"use strict";
function nextPow2(v) {
  v += v === 0 ? 1 : 0;
  --v;
  v |= v >>> 1;
  v |= v >>> 2;
  v |= v >>> 4;
  v |= v >>> 8;
  v |= v >>> 16;
  return v + 1;
}
function isPow2(v) {
  return !(v & v - 1) && !!v;
}
function log2(v) {
  let r = (v > 65535 ? 1 : 0) << 4;
  v >>>= r;
  let shift = (v > 255 ? 1 : 0) << 3;
  v >>>= shift;
  r |= shift;
  shift = (v > 15 ? 1 : 0) << 2;
  v >>>= shift;
  r |= shift;
  shift = (v > 3 ? 1 : 0) << 1;
  v >>>= shift;
  r |= shift;
  return r | v >> 1;
}

exports.isPow2 = isPow2;
exports.log2 = log2;
exports.nextPow2 = nextPow2;
//# sourceMappingURL=pow2.js.map