Android Open Source - GLES20Examples Cube Map Activity

• Back to OpenGL/Example  ↑

From Project

Back to project page GLES20Examples.

License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright 2014 Benjamin Malkas/*from   w  w  w.j a  v a  2s .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 r2ai.gles20.examples;

import java.lang.ref.WeakReference;

import r2ai.gles20.examples.SimpleRenderer.FpsListener;
import android.app.Activity;
import android.content.Context;
import android.graphics.Color;
import android.opengl.GLSurfaceView;
import android.os.Bundle;
import android.view.Gravity;
import android.widget.FrameLayout;
import android.widget.TextView;

/**
 * CubeMapActivty is the main activity. It's view is composed of a TextView
 * displaying the current fps and a GLSurfaceView containing an OpenGL renderer.
 * Both views are contained in a FrameLayout.
 */
public class CubeMapActivity extends Activity implements FpsListener {

  @SuppressWarnings("unused")
  private static final String TAG = "CubeMapActivity";
  private FrameLayout mLayout;
  private GLSurfaceView mSurfaceView;
  private SimpleRenderer mRenderer;
  private TextView mFpsView;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // mLayout will contain the GLSurfaceView and the TextView
    // mFpsView
    mLayout = new FrameLayout(this);

    FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(
        FrameLayout.LayoutParams.MATCH_PARENT,
        FrameLayout.LayoutParams.MATCH_PARENT);

    mLayout.setLayoutParams(params);

    mSurfaceView = new MyGLSurfaceView(this);
    mRenderer = new SimpleRenderer(this);

    mSurfaceView.setRenderer(mRenderer);

    mSurfaceView.setLayoutParams(params);

    mLayout.addView(mSurfaceView);

    mFpsView = new TextView(this);
    mFpsView.setTextColor(Color.WHITE);
    mFpsView.setBackgroundColor(Color.DKGRAY);
    mFpsView.setEms(3);

    // framelayout child views are drawn on top of each other, with the
    // most recently added at the top
    mLayout.addView(mFpsView, new FrameLayout.LayoutParams(
        FrameLayout.LayoutParams.WRAP_CONTENT,
        FrameLayout.LayoutParams.WRAP_CONTENT, Gravity.TOP
            | Gravity.END));

    setContentView(mLayout);
  }

  /*
   * GLSurfaceView require to call its onPause/onResume method to manage its
   * rendering thread and the OpenGL display according to Android doc.
   */
  @Override
  protected void onPause() {
    super.onPause();
    mSurfaceView.onPause();
  }

  @Override
  protected void onResume() {
    super.onResume();
    mSurfaceView.onResume();
  }
  
  // Just a little static inner class to not allocate a runnable every time the
  // fps is updated.
  public static class MyRunnable implements Runnable {

    WeakReference<CubeMapActivity> activity;
    int fps;
    
    public MyRunnable(CubeMapActivity activity, int fps) {
      this.activity = new WeakReference<CubeMapActivity>(activity);
      this.fps = fps;
    }
    
    @Override
    public void run() {
      activity.get().mFpsView.setText(Integer.toString(fps));
    }
    
  }
  
  private final MyRunnable r = new MyRunnable(this,0);

  public void setFps(final int fps) {
    r.fps = fps;
    runOnUiThread(r);
  }

  public static class MyGLSurfaceView extends GLSurfaceView {

    public MyGLSurfaceView(Context context) {
      super(context);
      // RGBA_8888 color buffer, 16bits depth buffer
      // and 8bits stencil buffer
      super.setEGLConfigChooser(8, 8, 8, 8, 16, 8);
      // request an OpenGL ES 2.0 context
      setEGLContextClientVersion(2);
    }

  }

}

Java Source Code List

• Back to OpenGL/Example  ↑