/*
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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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* Manager for the profile system.
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*
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* @author jezek2
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*/
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public class CProfileManager {
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private static CProfileNode root = new CProfileNode("Root", null);
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private static CProfileNode currentNode = root;
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private static int frameCounter = 0;
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private static long resetTime = 0;
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/**
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* @param name must be {@link String#intern interned} String (not needed for String literals)
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*/
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public static void startProfile(String name) {
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if (name != currentNode.getName()) {
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currentNode = currentNode.getSubNode(name);
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}
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currentNode.call();
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}
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public static void stopProfile() {
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// Return will indicate whether we should back up to our parent (we may
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// be profiling a recursive function)
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if (currentNode.Return()) {
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currentNode = currentNode.getParent();
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}
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}
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public static void cleanupMemory() {
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root.cleanupMemory();
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}
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public static void reset() {
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root.reset();
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root.call();
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frameCounter = 0;
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resetTime = BulletStats.profileGetTicks();
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}
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public static void incrementFrameCounter() {
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frameCounter++;
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}
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public static int getFrameCountSinceReset() {
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return frameCounter;
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}
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public static float getTimeSinceReset() {
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long time = BulletStats.profileGetTicks();
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time -= resetTime;
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return (float) time / BulletStats.profileGetTickRate();
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}
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public static CProfileIterator getIterator() {
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return new CProfileIterator(root);
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}
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public static void releaseIterator(CProfileIterator iterator) {
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/*delete ( iterator);*/
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}
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}
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