1 /******************************************************************************* 2 * Copyright (c) 2013, Daniel Murphy 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without modification, 6 * are permitted provided that the following conditions are met: 7 * * Redistributions of source code must retain the above copyright notice, 8 * this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above copyright notice, 10 * this list of conditions and the following disclaimer in the documentation 11 * and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 16 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 17 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 19 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 20 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 21 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 22 * POSSIBILITY OF SUCH DAMAGE. 23 ******************************************************************************/ 24 package org.jbox2d.dynamics; 25 26 import java.util.List; 27 28 import org.jbox2d.common.MathUtils; 29 30 public class Profile { 31 private static final int LONG_AVG_NUMS = 20; 32 private static final float LONG_FRACTION = 1f / LONG_AVG_NUMS; 33 private static final int SHORT_AVG_NUMS = 5; 34 private static final float SHORT_FRACTION = 1f / SHORT_AVG_NUMS; 35 36 public static class ProfileEntry { 37 float longAvg; 38 float shortAvg; 39 float min; 40 float max; 41 float accum; 42 43 public ProfileEntry() { 44 min = Float.MAX_VALUE; 45 max = -Float.MAX_VALUE; 46 } 47 48 public void record(float value) { 49 longAvg = longAvg * (1 - LONG_FRACTION) + value * LONG_FRACTION; 50 shortAvg = shortAvg * (1 - SHORT_FRACTION) + value * SHORT_FRACTION; 51 min = MathUtils.min(value, min); 52 max = MathUtils.max(value, max); 53 } 54 55 public void startAccum() { 56 accum = 0; 57 } 58 59 public void accum(float value) { 60 accum += value; 61 } 62 63 public void endAccum() { 64 record(accum); 65 } 66 67 @Override 68 public String toString() { 69 return shortAvg + " (" + longAvg + ") [" + min + "," + max + "]"; 70 } 71 } 72 73 public final ProfileEntry step = new ProfileEntry(); 74 public final ProfileEntry stepInit = new ProfileEntry(); 75 public final ProfileEntry collide = new ProfileEntry(); 76 public final ProfileEntry solveParticleSystem = new ProfileEntry(); 77 public final ProfileEntry solve = new ProfileEntry(); 78 public final ProfileEntry solveInit = new ProfileEntry(); 79 public final ProfileEntry solveVelocity = new ProfileEntry(); 80 public final ProfileEntry solvePosition = new ProfileEntry(); 81 public final ProfileEntry broadphase = new ProfileEntry(); 82 public final ProfileEntry solveTOI = new ProfileEntry(); 83 84 public void toDebugStrings(List<String> strings) { 85 strings.add("Profile:"); 86 strings.add(" step: " + step); 87 strings.add(" init: " + stepInit); 88 strings.add(" collide: " + collide); 89 strings.add(" particles: " + solveParticleSystem); 90 strings.add(" solve: " + solve); 91 strings.add(" solveInit: " + solveInit); 92 strings.add(" solveVelocity: " + solveVelocity); 93 strings.add(" solvePosition: " + solvePosition); 94 strings.add(" broadphase: " + broadphase); 95 strings.add(" solveTOI: " + solveTOI); 96 } 97 } 98
