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.differenteffects;

import java.io.IOException;

import java.io.InputStream;

import javax.microedition.khronos.egl.EGLConfig;

import javax.microedition.khronos.opengles.GL10;

import org.distorted.examples.R;

import org.distorted.library.Distorted;

import org.distorted.library.DistortedEffects;

import org.distorted.library.DistortedFramebuffer;

import org.distorted.library.DistortedScreen;

import org.distorted.library.MeshFlat;

import org.distorted.library.DistortedTexture;

import org.distorted.library.EffectTypes;

import org.distorted.library.type.Dynamic1D;

import org.distorted.library.type.Dynamic3D;

import org.distorted.library.type.Static1D;

import org.distorted.library.type.Static3D;

import org.distorted.library.type.Static4D;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.opengl.GLES30;

import android.opengl.GLSurfaceView;

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

class DifferentEffectsRenderer implements GLSurfaceView.Renderer 

{

   private static final int NUM = 3;

   private GLSurfaceView mView;

   private DistortedEffects[] mEffects;

   private DistortedTexture mTexture;

   private MeshFlat mMesh;

   private DistortedScreen mScreen;

   private int bmpHeight, bmpWidth;

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

   DifferentEffectsRenderer(GLSurfaceView v)

      {     

      mView = v;

      // mEffects[0] effects

      Static3D pLeft = new Static3D(214, 206, 0);

      Static3D pRight= new Static3D(390, 212, 0);

      Static4D RegionEye = new Static4D(0,0,60,60);

      // mEffects[1] effects

      Dynamic3D dyn = new Dynamic3D(1000,0.0f);

      dyn.add(new Static3D( 50,0,0));

      dyn.add(new Static3D(-50,0,0));

      Static3D pNose1 = new Static3D(305, 340, 0);

      // we don't need to prepare anything for mEffects[2] effects

      mEffects = new DistortedEffects[NUM];

      for(int i=0; i<NUM; i++) mEffects[i] = new DistortedEffects();

      Dynamic1D sink = new Dynamic1D(2000,0.0f);

      sink.add(new Static1D( 1));

      sink.add(new Static1D(10));

      mEffects[0].sink(sink, pLeft, RegionEye);

      mEffects[0].sink(sink, pRight,RegionEye);

      mEffects[1].distort(dyn, pNose1);

      Dynamic1D chromaDyn = new Dynamic1D(3000,0.0f);

      chromaDyn.add(new Static1D(0));

      chromaDyn.add(new Static1D(1));

      mEffects[2].chroma(chromaDyn, new Static3D(0,1,0) );

      mScreen = new DistortedScreen();

      }

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

   public void onDrawFrame(GL10 glUnused)

     {

     GLES30.glClear( GLES30.GL_DEPTH_BUFFER_BIT | GLES30.GL_COLOR_BUFFER_BIT);

     long time = System.currentTimeMillis();

     for(int i=NUM-1; i>=0; i--) mScreen.renderTo(mTexture, mMesh, mEffects[i], time);

     }

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

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

     {

     for(int i=NUM-1; i>=0; i--)

       {

       mEffects[i].abortEffects(EffectTypes.MATRIX);

       }

     if( (float)bmpHeight/(NUM*bmpWidth) > (float)height/width )

       {

       int w = (height*bmpWidth)/bmpHeight;

       float factor = (float)height/bmpHeight;

       for(int i=NUM-1; i>=0; i--)

         {

         mEffects[i].move( new Static3D((width-NUM*w)/2 +i*w , 0, 0) );

         mEffects[i].scale(factor);

         }

       }

     else

       {

       int w = width/NUM;

       int h = (width*bmpHeight)/(bmpWidth*NUM);

       float factor = (float)width/(bmpWidth*NUM);

       for(int i=NUM-1; i>=0; i--)

         {

         mEffects[i].move( new Static3D(i*w, (height-h)/2, 0) );

         mEffects[i].scale(factor);

         }

       }

     mScreen.resize(width, height);

     }

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

   public void onSurfaceCreated(GL10 glUnused, EGLConfig config)

     {

     GLES30.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);

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

     Bitmap bitmap;

     try

       {

       bitmap = BitmapFactory.decodeStream(is);

       }

     finally

       {

       try

         {

         is.close();

         }

       catch(IOException e) { }

       }

     bmpHeight = bitmap.getHeight();

     bmpWidth  = bitmap.getWidth();

     mMesh = new MeshFlat(30,30*bmpHeight/bmpWidth);

     mTexture  = new DistortedTexture(bmpWidth,bmpHeight);

     mTexture.setTexture(bitmap);

     try

       {

       Distorted.onCreate(mView.getContext());

       }

     catch(Exception ex)

       {

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

       }

     }

}