modules/cldc-compact/src/main/java/cc/squirreljme/runtime/cldc/util/MathUtils.java

   1 // -*- Mode: Java; indent-tabs-mode: t; tab-width: 4 -*-
   2 // ---------------------------------------------------------------------------
   3 // Multi-Phasic Applications: SquirrelJME
   4 //     Copyright (C) Stephanie Gawroriski <xer@multiphasicapps.net>
   5 // ---------------------------------------------------------------------------
   6 // SquirrelJME is under the Mozilla Public License Version 2.0.
   7 // See license.mkd for licensing and copyright information.
   8 // ---------------------------------------------------------------------------
   9
  10 package cc.squirreljme.runtime.cldc.util;
  11
  12 import cc.squirreljme.runtime.cldc.annotation.SquirrelJMEVendorApi;
  13
  14 /**
  15  * Math utilities.
  16  *
  17  * @since 2024/03/17
  18  */
  19 @SquirrelJMEVendorApi
  20 public final class MathUtils
  21 {
  22         /**
  23          * Not used.
  24          *
  25          * @since 2024/03/17
  26          */
  27         private MathUtils()
  28         {
  29         }
  30
  31
  32         /**
  33          * Rounds to the nearest power of two.
  34          *
  35          * @param __val The value to round.
  36          * @return The resultant rounded value.
  37          * @since 2024/03/17
  38          */
  39         public static int nearestPowerOfTwo(int __val)
  40         {
  41                 int hi = Math.max(1, Integer.highestOneBit(__val));
  42                 int mask = Math.max(1, hi - 1);
  43                 if ((__val & mask) >= (hi >>> 1))
  44                         return hi << 1;
  45                 return hi;
  46         }
  47 }