Distorted Android

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

// 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.blur;

import android.app.ActivityManager;

import android.content.Context;

import android.content.pm.ConfigurationInfo;

import android.content.res.Resources;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.opengl.GLSurfaceView;

import org.distorted.examples.R;

import org.distorted.library.effect.MatrixEffectMove;

import org.distorted.library.effect.MatrixEffectScale;

import org.distorted.library.effect.PostprocessEffectBlur;

import org.distorted.library.main.DistortedLibrary;

import org.distorted.library.main.DistortedEffects;

import org.distorted.library.main.DistortedFramebuffer;

import org.distorted.library.main.DistortedScreen;

import org.distorted.library.main.DistortedTexture;

import org.distorted.library.mesh.MeshSquare;

import org.distorted.library.type.Dynamic2D;

import org.distorted.library.type.Static2D;

import org.distorted.library.type.Static3D;

import java.io.IOException;

import java.io.InputStream;

import javax.microedition.khronos.egl.EGLConfig;

import javax.microedition.khronos.opengles.GL10;

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

class BlurRenderer implements GLSurfaceView.Renderer, DistortedLibrary.LibraryUser

{

    private final static int SIZE = 500;

    private final static float PART = 0.5f;

    private final GLSurfaceView mView;

    private final Resources mResources;

    private final DistortedEffects mEffects, mBufferEffects;

    private final DistortedScreen mScreen;

    private final DistortedFramebuffer mBuffer;

    private final MeshSquare mMesh, mMeshBuffer;

    private final Static2D mHaloRadiusSta;

    private final Static3D mMove, mScale, mBufferScale;

    private DistortedTexture mTexture;

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

   BlurRenderer(GLSurfaceView v)

      {

      mView = v;

      mResources = v.getResources();

      mMesh       = new MeshSquare(1,1);

      mMeshBuffer = new MeshSquare(1,1);

      mScreen     = new DistortedScreen();

      mBuffer     = new DistortedFramebuffer(SIZE,SIZE,1, DistortedFramebuffer.NO_DEPTH_NO_STENCIL);

      mHaloRadiusSta = new Static2D(10,5);

      Dynamic2D haloAndRadiusDyn = new Dynamic2D();

      haloAndRadiusDyn.add(mHaloRadiusSta);

      mMove = new Static3D(0,0,0);

      mScale= new Static3D(1,1,1);

      mBufferScale= new Static3D(1,1,1);

      mBufferEffects = new DistortedEffects();

      mBufferEffects.apply(new MatrixEffectScale(mBufferScale));

      mBufferEffects.apply(new PostprocessEffectBlur(haloAndRadiusDyn));

      mEffects = new DistortedEffects();

      mEffects.apply(new MatrixEffectScale(mScale));

      mEffects.apply(new MatrixEffectMove(mMove));

      }

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

//   0 --> (SIZE-factor2) * -0.5

//  50 --> (SIZE-factor2) *  0.0

// 100 --> (SIZE-factor2) * +0.5

   int setMove(int move)

     {

     float xmove = (1-PART)*SIZE*(move-50)*0.01f;

     mMove.set0(xmove);

     return (int)xmove;

     }

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

   int setHalo(int halo)

     {

     int radius = halo;

     mHaloRadiusSta.set0(radius);

     return radius;

     }

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

   int setBlur(int blur)

     {

     int radius = blur/2;

     mHaloRadiusSta.set1(radius);

     return radius;

     }

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

   public void onDrawFrame(GL10 glUnused) 

      {

      long time = System.currentTimeMillis();

      mBuffer.render(time);

      mScreen.render(time);

      }

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

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

     {

     float factor1 = Math.min(width, height);

     mBufferScale.set( factor1,factor1,factor1 );

     float factor2 = PART*SIZE;

     mScale.set( factor2,factor2,factor2 );

     mScreen.resize(width, height);

     }

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

   public void onSurfaceCreated(GL10 glUnused, EGLConfig config)

     {

     InputStream is = mView.getContext().getResources().openRawResource(R.raw.dog);

     Bitmap bitmap;

     try

       {

       bitmap = BitmapFactory.decodeStream(is);

       }

     finally

       {

       try

         {

         is.close();

         }

       catch(IOException ignored) { }

       }

     if( mTexture==null ) mTexture = new DistortedTexture();

     mTexture.setTexture(bitmap);

     mScreen.detachAll();

     mBuffer.detachAll();

     mScreen.attach(mBuffer, mBufferEffects, mMeshBuffer);

     mBuffer.attach(mTexture,mEffects,mMesh);

     PostprocessEffectBlur.enable();

     DistortedLibrary.onSurfaceCreated(this);

     }

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

   public void distortedException(Exception ex)

     {

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

     }

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

   public int openGlVersion()

     {

     Context context = mView.getContext();

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

     final ConfigurationInfo configurationInfo = activityManager.getDeviceConfigurationInfo();

     int glESversion = configurationInfo.reqGlEsVersion;

     int major = glESversion >> 16;

     int minor = glESversion & 0xff;

     return 100*major + 10*minor;

     }

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

   public InputStream localFile(int fileID)

     {

     return mResources.openRawResource(fileID);

     }

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

   public void logMessage(String message)

     {

     android.util.Log.e("Blur", message );

     }

}