Distorted Android

        <activity android:name=".flatblur.FlatBlurActivity"/>

import org.distorted.examples.flatblur.FlatBlurActivity;

    MESHFILE          (R.drawable.icon_example_meshfile        , R.string.example_meshfile           , R.string.example_meshfile_subtitle           ,            MeshFileActivity.class),

    FLATBLUR          (R.drawable.icon_example_flatblur        , R.string.example_flatblur         , R.string.example_flatblur_subtitle         , FlatBlurActivity.class ),

///////////////////////////////////////////////////////////////////////////////////////////////////

// Copyright 2016 Leszek Koltunski                                                               //

//                                                                                               //

// This file is part of Distorted.                                                               //

//                                                                                               //

// Distorted is free software: you can redistribute it and/or modify                             //

// it under the terms of the GNU General Public License as published by                          //

// the Free Software Foundation, either version 2 of the License, or                             //

// (at your option) any later version.                                                           //

//                                                                                               //

// Distorted is distributed in the hope that it will be useful,                                  //

// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 //

// GNU General Public License for more details.                                                  //

//                                                                                               //

// You should have received a copy of the GNU General Public License                             //

// along with Distorted.  If not, see <http://www.gnu.org/licenses/>.                            //

///////////////////////////////////////////////////////////////////////////////////////////////////

package org.distorted.examples.flatblur;

import android.app.Activity;

import android.opengl.GLSurfaceView;

import android.os.Bundle;

import android.view.View;

import android.widget.CheckBox;

import android.widget.SeekBar;

import org.distorted.examples.R;

import org.distorted.library.main.DistortedLibrary;

///////////////////////////////////////////////////////////////////////////////////////////////////

public class FlatBlurActivity extends Activity implements SeekBar.OnSeekBarChangeListener

{

    @Override

    protected void onCreate(Bundle savedState) 

      {

      super.onCreate(savedState);

      DistortedLibrary.onCreate();

      setContentView(R.layout.flatblurlayout);

      SeekBar barSize  = findViewById(R.id.flatblurBlurStrength);

      barSize.setOnSeekBarChangeListener(this);

      barSize.setProgress(0);

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    @Override

    protected void onPause() 

      {

      super.onPause();

      GLSurfaceView view = findViewById(R.id.flatblurSurfaceView);

      view.onPause();

      DistortedLibrary.onPause();

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    @Override

    protected void onResume() 

      {

      super.onResume();

      GLSurfaceView view = findViewById(R.id.flatblurSurfaceView);

      view.onResume();

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    @Override

    protected void onDestroy() 

      {

      DistortedLibrary.onDestroy();

      super.onDestroy();

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    public void enableBlur(View view)

      {

      CheckBox box = (CheckBox)view;

      boolean checked = box.isChecked();

      FlatBlurSurfaceView v = findViewById(R.id.flatblurSurfaceView);

      FlatBlurRenderer renderer = v.getRenderer();

      renderer.enableBlur(!checked);

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public void onProgressChanged(SeekBar bar, int progress, boolean fromUser)

    {

    FlatBlurSurfaceView v = findViewById(R.id.flatblurSurfaceView);

    FlatBlurRenderer renderer = v.getRenderer();

    renderer.setBlurStrength(progress);

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public void onStartTrackingTouch(SeekBar bar) { }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public void onStopTrackingTouch(SeekBar bar)  { }

}

///////////////////////////////////////////////////////////////////////////////////////////////////

// Copyright 2016 Leszek Koltunski                                                               //

//                                                                                               //

// This file is part of Distorted.                                                               //

//                                                                                               //

// Distorted is free software: you can redistribute it and/or modify                             //

// it under the terms of the GNU General Public License as published by                          //

// the Free Software Foundation, either version 2 of the License, or                             //

// (at your option) any later version.                                                           //

//                                                                                               //

// Distorted is distributed in the hope that it will be useful,                                  //

// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 //

// GNU General Public License for more details.                                                  //

//                                                                                               //

// You should have received a copy of the GNU General Public License                             //

// along with Distorted.  If not, see <http://www.gnu.org/licenses/>.                            //

///////////////////////////////////////////////////////////////////////////////////////////////////

package org.distorted.examples.flatblur;

import android.opengl.GLSurfaceView;

import org.distorted.library.effect.EffectQuality;

import org.distorted.library.effect.MatrixEffectMove;

import org.distorted.library.effect.MatrixEffectScale;

import org.distorted.library.effect.PostprocessEffectBlur;

import org.distorted.library.main.DistortedEffects;

import org.distorted.library.main.DistortedLibrary;

import org.distorted.library.main.DistortedNode;

import org.distorted.library.main.DistortedScreen;

import org.distorted.library.main.DistortedTexture;

import org.distorted.library.mesh.MeshQuad;

import org.distorted.library.type.Static2D;

import org.distorted.library.type.Static3D;

import javax.microedition.khronos.egl.EGLConfig;

import javax.microedition.khronos.opengles.GL10;

///////////////////////////////////////////////////////////////////////////////////////////////////

class FlatBlurRenderer implements GLSurfaceView.Renderer, DistortedLibrary.ExceptionListener

{

    private static final int HALO = 15;

    private final GLSurfaceView mView;

    private final DistortedScreen mScreen;

    private final PostprocessEffectBlur mBlur;

    private final DistortedNode mRedNode;

    private final Static2D mBlurStrength;

///////////////////////////////////////////////////////////////////////////////////////////////////

    FlatBlurRenderer(GLSurfaceView v)

      {

      mView = v;

      mScreen = new DistortedScreen();

      int x = 50;

      int scale = 200;

      mRedNode = createNode(-x,0,1,scale,0xffff0000);

      DistortedNode whiteNode = createNode(x,0,1,scale,0xffffffff);

      mScreen.attach(mRedNode);

      mScreen.attach(whiteNode);

      mBlurStrength = new Static2D(HALO,0);

      mBlur = new PostprocessEffectBlur(mBlurStrength);

      mBlur.setQuality(EffectQuality.MEDIUM);

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    private DistortedNode createNode(int x, int y, int z, int scale, int color)

      {

      DistortedTexture texture = new DistortedTexture();

      texture.setColorARGB(color);

      MeshQuad mesh = new MeshQuad();

      DistortedEffects effects = new DistortedEffects();

      Static3D move = new Static3D(x,y,z);

      MatrixEffectMove mainMove  = new MatrixEffectMove(move);

      MatrixEffectScale mainScale= new MatrixEffectScale(scale);

      effects.apply(mainScale);

      effects.apply(mainMove);

      return new DistortedNode(texture,effects,mesh);

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    public void onDrawFrame(GL10 glUnused) 

      {

      mScreen.render(System.currentTimeMillis());

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    public void onSurfaceChanged(GL10 glUnused, int width, int height)

      {

      mScreen.resize(width,height);

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    public void onSurfaceCreated(GL10 glUnused, EGLConfig config) 

      {

      PostprocessEffectBlur.enable();

      DistortedLibrary.onSurfaceCreated( mView.getContext(), this);

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    public void distortedException(Exception ex)

      {

      android.util.Log.e("SetTexture", ex.getMessage() );

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    public void enableBlur(boolean enable)

      {

      DistortedEffects effects = mRedNode.getEffects();

      long id = mBlur.getID();

      if( enable ) effects.abortById(id);

      else         effects.apply(mBlur);

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    public void setBlurStrength(int strength)

      {

      mBlurStrength.set(HALO,strength*0.5f);

      }

}

///////////////////////////////////////////////////////////////////////////////////////////////////

// Copyright 2016 Leszek Koltunski                                                               //

//                                                                                               //

// This file is part of Distorted.                                                               //

//                                                                                               //

// Distorted is free software: you can redistribute it and/or modify                             //

// it under the terms of the GNU General Public License as published by                          //

// the Free Software Foundation, either version 2 of the License, or                             //

// (at your option) any later version.                                                           //

//                                                                                               //

// Distorted is distributed in the hope that it will be useful,                                  //

// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 //

// GNU General Public License for more details.                                                  //

//                                                                                               //

// You should have received a copy of the GNU General Public License                             //

// along with Distorted.  If not, see <http://www.gnu.org/licenses/>.                            //

///////////////////////////////////////////////////////////////////////////////////////////////////

package org.distorted.examples.flatblur;

import android.app.ActivityManager;

import android.content.Context;

import android.content.pm.ConfigurationInfo;

import android.opengl.GLSurfaceView;

import android.util.AttributeSet;

import android.widget.Toast;

import org.distorted.examples.R;

///////////////////////////////////////////////////////////////////////////////////////////////////

class FlatBlurSurfaceView extends GLSurfaceView

{

    private FlatBlurRenderer mRenderer;

///////////////////////////////////////////////////////////////////////////////////////////////////

    public FlatBlurSurfaceView(Context context, AttributeSet attrs)

      {

      super(context, attrs);

      if(!isInEditMode())

        {

        mRenderer = new FlatBlurRenderer(this);

        final ActivityManager activityManager     = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);

        final ConfigurationInfo configurationInfo = activityManager.getDeviceConfigurationInfo();

        setEGLContextClientVersion( (configurationInfo.reqGlEsVersion>>16) >= 3 ? 3:2 );

        setRenderer(mRenderer);

        Toast.makeText(context, R.string.example_rotate_toast , Toast.LENGTH_SHORT).show();

        }

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    public FlatBlurRenderer getRenderer()

      {

      return mRenderer;

      }

}

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:orientation="vertical" >

    <org.distorted.examples.flatblur.FlatBlurSurfaceView

        android:id="@+id/flatblurSurfaceView"

        android:layout_width="fill_parent"

        android:layout_height="0dp"

        android:layout_weight="1" />

    <LinearLayout

        android:orientation="horizontal"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:gravity="center">

        <CheckBox

                android:id="@+id/flatblurEnableBlur"

                android:layout_width="0dp"

                android:layout_height="match_parent"

                android:layout_weight="1"

                android:onClick="enableBlur"

                android:checked="false"/>

        <SeekBar

                android:id="@+id/flatblurBlurStrength"

                android:layout_width="0dp"

                android:layout_height="match_parent"

                android:layout_weight="2"

                android:layout_gravity="center_vertical"

                android:layout_margin="5dp"/>

    </LinearLayout>

</LinearLayout>

    <string name="example_flatblur">Flat Blur</string>

    <string name="example_flatblur_subtitle">Unit test to see two partially obstructing flat objects, one of them blurred.</string>