Android Open Source - Schooner-3D Jank Catcher

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright 2012 Dan Mercer/* w  w  w  .j  a va 2  s  .  com*/
 * 
 * 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.supermercerbros.gameengine.debug;

import android.util.Log;

public enum JankCatcher {
  INSTANCE;
  
  private static final String TAG = JankCatcher.class.getSimpleName();
  
  private int updating = -1;
  private int rendering = -1;
  
  public synchronized void onBeginUpdate(int index) {
    updating = index;
    if (updating == rendering) {
      LoopLog.e(TAG, "onBeginUpdate(" + index + ") - JANK!");
    } else {
      LoopLog.d(TAG, "onBeginUpdate(" + index + ")");
    }
  }
  
  public synchronized void onFinishUpdate(int index) {
    LoopLog.d(TAG, "onFinishUpdate(" + index + ")");
    if (updating != index) {
      Log.wtf(TAG, "\'Finished\' updating RD " + index + ", but was updating RD " + updating);
    }
    updating = -1;
  }
  
  public synchronized void onBeginRender(int index) {
    rendering = index;
    if (rendering == updating) {
      LoopLog.e(TAG, "onBeginRender(" + index + ") - JANK!");
    } else {
      LoopLog.d(TAG, "onBeginRender(" + index + ")");
    }
  }
  
  public synchronized void onFinishRender(int index) {
    LoopLog.d(TAG, "onFinishRender(" + index + ")");
    if (rendering != index) {
      Log.wtf(TAG, "\'Finished\' rendering RD " + index + ", but was rendering RD " + updating);
    }
    rendering = -1;
  }
}

Java Source Code List

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