Android Open Source - CircleWorldGDX U E Profiler

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License

The source code is released under:

MIT License

Java Source Code

package com.fdangelo.circleworld.universeengine.utils;
//w w  w  .  j  av  a  2s  .c o m
import com.badlogic.gdx.utils.TimeUtils;

public class UEProfiler {
  static private boolean profilerEnabled = true;

  static public void Update() {
    sampledFrames++;
    // Clear();
  }

  private static final int MAX_SAMPLES = 8192;

  static private UEProfilerSample[] samples = new UEProfilerSample[MAX_SAMPLES];
  static private int currentIndex = 0;
  static private int maxSamples = 0;
  static private int sampledFrames = 0;

  static public void Clear() {
    currentIndex = 0;
    maxSamples = 0;
    sampledFrames = 0;
  }

  static public void BeginSample(final String id) {
    if (!profilerEnabled) {
      return;
    }

    if (samples[maxSamples] == null) {
      samples[maxSamples] = new UEProfilerSample();
    }

    samples[maxSamples].id = id;
    samples[maxSamples].startNanoTime = TimeUtils.nanoTime();
    samples[maxSamples].endNanoTime = 0;
    samples[maxSamples].parent = currentIndex;

    currentIndex = maxSamples;

    maxSamples++;

    // Disable the profiler if we run out of samples
    if (maxSamples == samples.length) {
      Clear();
      profilerEnabled = false;
    }
  }

  static public void EndSample() {
    if (!profilerEnabled) {
      return;
    }

    samples[currentIndex].endNanoTime = TimeUtils.nanoTime();
    currentIndex = samples[currentIndex].parent;
  }

  static public float GetSampleTime(final String id) {
    if (!profilerEnabled) {
      return 0;
    }

    long nanoTime = 0;

    for (int i = 0; i < maxSamples; i++) {
      if (samples[i].id == id) {
        nanoTime += samples[i].endNanoTime - samples[i].startNanoTime;
      }
    }

    if (sampledFrames > 0) {
      nanoTime /= sampledFrames;
    }

    return nanoTime / 1000000000.0f;
  }
}

Java Source Code List

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