| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.internal.util; |
| |
| /** |
| * Fast and loose math routines. |
| */ |
| public class FastMath { |
| |
| /** |
| * Fast round from float to int. This is faster than Math.round() |
| * thought it may return slightly different results. It does not try to |
| * handle (in any meaningful way) NaN or infinities. |
| */ |
| public static int round(float x) { |
| long lx = (long)(x * (65536 * 256f)); |
| return (int)((lx + 0x800000) >> 24); |
| } |
| } |