Android Open Source - Schooner-3D Render Data

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright 2012 Dan Mercer//from w ww. j  a v a 2  s .  co  m
 * 
 * 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.engine;

import java.util.LinkedList;
import java.util.concurrent.CopyOnWriteArrayList;

import android.util.Log;

import com.supermercerbros.gameengine.objects.Metadata;

public class RenderData {
  /**
   * Represents the area of a buffer (VBO or IBO) that is dirty and needs to be reloaded to the GPU.
   */
  public class Range {
    // Start is inclusive, end is exclusive
    int start = Integer.MAX_VALUE, end = 0;
    
    void include(int start, int end) {
      if (start < this.start) {
        this.start = start;
      }
      if (end > this.end) { 
        this.end = end;
      }
    }
    
    void reset() {
      start = Integer.MAX_VALUE;
      end = 0;
    }

    boolean needsToBeUpdated() {
      final boolean b = end - 1 > start;
      if (b) {
        Log.d("Range", "from " + start + " to " + end);
      }
      return b;
    }
  }


  public final int index;
  
  public final LinkedList<Metadata> primitives;
  public final float[] vbo;
  public final Range vboRange = new Range();
  public final short[] ibo;
  public final Range iboRange = new Range();

  public CopyOnWriteArrayList<float[]> modelMatrices;
  public float[] viewMatrix = new float[16];
  public Light light = new Light();

  
  public RenderData(int index, final int vboLength, final int iboLength) {
    this.index = index;
    
    vbo = new float[vboLength];
    ibo = new short[iboLength];
    primitives = new LinkedList<Metadata>();
    modelMatrices = new CopyOnWriteArrayList<float[]>();
  }
}

Java Source Code List

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