com.badlogic.gdx.utils.PerformanceCounters.java Source code

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Here is the source code for com.badlogic.gdx.utils.PerformanceCounters.java

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/*******************************************************************************
 * Copyright 2011 See AUTHORS file.
 * 
 * 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.badlogic.gdx.utils;

import com.badlogic.gdx.Gdx;

/** @author xoppa */
public class PerformanceCounters {
    private final static float nano2seconds = 1f / 1000000000.0f;

    private long lastTick = 0L;
    public final Array<PerformanceCounter> counters = new Array<PerformanceCounter>();

    public PerformanceCounter add(final String name, final int windowSize) {
        PerformanceCounter result = new PerformanceCounter(name, windowSize);
        counters.add(result);
        return result;
    }

    public PerformanceCounter add(final String name) {
        PerformanceCounter result = new PerformanceCounter(name);
        counters.add(result);
        return result;
    }

    public void tick() {
        final long t = TimeUtils.nanoTime();
        if (lastTick > 0L)
            tick((t - lastTick) * nano2seconds);
        lastTick = t;
    }

    public void tick(final float deltaTime) {
        for (int i = 0; i < counters.size; i++)
            counters.get(i).tick(deltaTime);
    }

    public StringBuilder toString(final StringBuilder sb) {
        sb.setLength(0);
        for (int i = 0; i < counters.size; i++) {
            if (i != 0)
                sb.append("; ");
            counters.get(i).toString(sb);
        }
        return sb;
    }
}