all files / src/math/ util.js

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var mathUtil = {};
 
mathUtil.isPowerOfTwo = function (value) {
    return (value & (value - 1)) === 0;
};
 
mathUtil.nextPowerOfTwo = function (value) {
    value --;
    value |= value >> 1;
    value |= value >> 2;
    value |= value >> 4;
    value |= value >> 8;
    value |= value >> 16;
    value ++;
 
    return value;
};
 
mathUtil.nearestPowerOfTwo = function (value) {
    return Math.pow( 2, Math.round( Math.log( value ) / Math.LN2 ) );
};
 
export default mathUtil;