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.bean;

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.effect.MatrixEffectMove;

import org.distorted.library.effect.MatrixEffectScale;

import org.distorted.library.effect.VertexEffectDistort;

import org.distorted.library.main.DistortedEffects;

import org.distorted.library.main.DistortedScreen;

import org.distorted.library.main.Distorted;

import org.distorted.library.main.DistortedTexture;

import org.distorted.library.mesh.MeshFlat;

import org.distorted.library.type.Dynamic3D;

import org.distorted.library.type.Static3D;

import org.distorted.library.type.Static4D;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.opengl.GLSurfaceView;

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

class BeanRenderer implements GLSurfaceView.Renderer 

{

   private GLSurfaceView mView;

   private DistortedEffects mEffects;

   private DistortedScreen mScreen;

   private DistortedTexture mTexture;

   private MeshFlat mMesh;

   private int mObjHeight, mObjWidth;

   private Static3D mMove, mScale;

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

   BeanRenderer(GLSurfaceView v)

      {

      mView = v;

      Static3D pointLeft  = new Static3D( 98, 183, 0);

      Static3D pointRight = new Static3D(233, 140, 0);

      Static4D regionLeft = new Static4D( -3,-33,47,47);

      Static4D regionRight= new Static4D(-14,-33,47,47);

      Dynamic3D dynLeft   = new Dynamic3D(2000,0.0f);

      Dynamic3D dynRight  = new Dynamic3D(2000,0.0f);

      Static3D p1 = new Static3D(  0,  0, 0);

      Static3D p2 = new Static3D(-15,-30, 0);

      dynLeft.add(p1);

      dynLeft.add(p1);

      dynLeft.add(p1);

      dynLeft.add(p1);

      dynLeft.add(p2);

      dynLeft.add(p2);

      dynRight.add(p1);

      dynRight.add(p2);

      dynRight.add(p2);

      dynRight.add(p1);

      dynRight.add(p1);

      dynRight.add(p1);

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

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

      mEffects = new DistortedEffects();

      mEffects.apply( new VertexEffectDistort(dynLeft , pointLeft , regionLeft) );

      mEffects.apply( new VertexEffectDistort(dynRight, pointRight, regionRight));

      mEffects.apply( new MatrixEffectMove(mMove) );

      mEffects.apply( new MatrixEffectScale(mScale) );

      mScreen = new DistortedScreen();

      }

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

   public void onDrawFrame(GL10 glUnused)

      {

      mScreen.render( System.currentTimeMillis() );

      }

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

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

     {

     if( (float)mObjHeight/mObjWidth > (float)height/width )

        {

        int w = (height*mObjWidth)/mObjHeight;

        float factor = (float)height/mObjHeight;

        mMove.set((width-w)/2,0,0);

        mScale.set(factor,factor,factor);

        }

     else

        {

        int h = (width*mObjHeight)/mObjWidth;

        float factor = (float)width/mObjWidth;

        mMove.set(0,(height-h)/2,0);

        mScale.set(factor,factor,factor);

        }

     mScreen.resize(width,height);

     }

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

   public void onSurfaceCreated(GL10 glUnused, EGLConfig config)

     {

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

     Bitmap bitmap;

     try

       {

       bitmap = BitmapFactory.decodeStream(is);

       }

     finally

       {

       try

         {

         is.close();

         }

       catch(IOException e) { }

       }

     mObjHeight = bitmap.getHeight();

     mObjWidth  = bitmap.getWidth();

     if( mTexture==null ) mTexture = new DistortedTexture(mObjWidth,mObjHeight);

     mTexture.setTexture(bitmap);

     if( mMesh==null ) mMesh = new MeshFlat(25,25*mObjHeight/mObjWidth);

     mScreen.detachAll();

     mScreen.attach(mTexture,mEffects,mMesh);

     VertexEffectDistort.enable();

     try

       {

       Distorted.onCreate(mView.getContext());

       }

     catch(Exception ex)

       {

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

       }

     }

}