/*
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* Java port of Bullet (c) 2008 Martin Dvorak <jezek2@advel.cz>
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*
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* Bullet Continuous Collision Detection and Physics Library
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* Copyright (c) 2003-2008 Erwin Coumans http://www.bulletphysics.com/
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*
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* This software is provided 'as-is', without any express or implied warranty.
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* In no event will the authors be held liable for any damages arising from
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* the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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*/
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/***************************************************************************************************
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**
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** Real-Time Hierarchical Profiling for Game Programming Gems 3
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**
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** by Greg Hjelstrom & Byon Garrabrant
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**
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***************************************************************************************************/
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package com.bulletphysics.linearmath;
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import com.bulletphysics.BulletStats;
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/**
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* A node in the Profile Hierarchy Tree.
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*
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* @author jezek2
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*/
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class CProfileNode {
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protected String name;
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protected int totalCalls;
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protected float totalTime;
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protected long startTime;
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protected int recursionCounter;
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protected CProfileNode parent;
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protected CProfileNode child;
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protected CProfileNode sibling;
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public CProfileNode(String name, CProfileNode parent) {
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this.name = name;
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this.totalCalls = 0;
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this.totalTime = 0;
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this.startTime = 0;
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this.recursionCounter = 0;
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this.parent = parent;
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this.child = null;
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this.sibling = null;
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reset();
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}
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public CProfileNode getSubNode(String name) {
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// Try to find this sub node
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CProfileNode child = this.child;
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while (child != null) {
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if (child.name == name) {
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return child;
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}
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child = child.sibling;
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}
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// We didn't find it, so add it
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CProfileNode node = new CProfileNode(name, this);
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node.sibling = this.child;
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this.child = node;
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return node;
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}
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public CProfileNode getParent() {
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return parent;
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}
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public CProfileNode getSibling() {
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return sibling;
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}
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public CProfileNode getChild() {
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return child;
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}
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public void cleanupMemory() {
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child = null;
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sibling = null;
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}
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public void reset() {
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totalCalls = 0;
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totalTime = 0.0f;
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BulletStats.gProfileClock.reset();
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if (child != null) {
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child.reset();
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}
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if (sibling != null) {
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sibling.reset();
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}
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}
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public void call() {
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totalCalls++;
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if (recursionCounter++ == 0) {
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startTime = BulletStats.profileGetTicks();
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}
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}
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public boolean Return() {
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if (--recursionCounter == 0 && totalCalls != 0) {
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long time = BulletStats.profileGetTicks();
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time -= startTime;
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totalTime += (float) time / BulletStats.profileGetTickRate();
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}
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return (recursionCounter == 0);
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}
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public String getName() {
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return name;
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}
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public int getTotalCalls() {
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return totalCalls;
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}
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public float getTotalTime() {
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return totalTime;
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}
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}
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