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.meshjoin;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.opengl.GLSurfaceView;

import org.distorted.examples.R;

import org.distorted.library.effect.MatrixEffect;

import org.distorted.library.effect.MatrixEffectMove;

import org.distorted.library.effect.MatrixEffectQuaternion;

import org.distorted.library.effect.MatrixEffectRotate;

import org.distorted.library.effect.MatrixEffectScale;

import org.distorted.library.main.DistortedEffects;

import org.distorted.library.main.DistortedLibrary;

import org.distorted.library.main.DistortedScreen;

import org.distorted.library.main.DistortedTexture;

import org.distorted.library.mesh.MeshBase;

import org.distorted.library.mesh.MeshJoined;

import org.distorted.library.mesh.MeshQuad;

import org.distorted.library.type.DynamicQuat;

import org.distorted.library.type.Static1D;

import org.distorted.library.type.Static3D;

import org.distorted.library.type.Static4D;

import java.io.IOException;

import java.io.InputStream;

import javax.microedition.khronos.egl.EGLConfig;

import javax.microedition.khronos.opengles.GL10;

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

class MeshJoinRenderer implements GLSurfaceView.Renderer

{

    private GLSurfaceView mView;

    private DistortedTexture mTexture;

    private DistortedScreen mScreen;

    private DistortedEffects mEffects;

    private Static3D mScale;

    private MeshBase mMesh;

    Static4D mQuat1, mQuat2;

    int mScreenMin;

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

    MeshJoinRenderer(GLSurfaceView v)

      {

      mView = v;

      mScreen = new DistortedScreen();

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

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

      mQuat1 = new Static4D(0,0,0,1);  // unity

      mQuat2 = new Static4D(0,0,0,1);  // quaternions

      DynamicQuat quatInt1 = new DynamicQuat(0,0.5f);

      DynamicQuat quatInt2 = new DynamicQuat(0,0.5f);

      quatInt1.add(mQuat1);

      quatInt2.add(mQuat2);

      mEffects = new DistortedEffects();

      mEffects.apply( new MatrixEffectQuaternion(quatInt2, center) );

      mEffects.apply( new MatrixEffectQuaternion(quatInt1, center) );

      mEffects.apply( new MatrixEffectScale(mScale));

      }

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

    public void onDrawFrame(GL10 glUnused) 

      {

      mScreen.render( System.currentTimeMillis() );

      }

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

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

      {

      final float SCALE = 0.75f;

      mScreenMin = width<height ? width:height;

      float factor = SCALE*mScreenMin;

      mScale.set(factor,factor,factor);

      mScreen.resize(width, height);

      }

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

    public void onSurfaceCreated(GL10 glUnused, EGLConfig config) 

      {

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

      Bitmap bitmap;

      try

        {

        bitmap = BitmapFactory.decodeStream(is);

        }

      finally

        {

        try

          {

          is.close();

          }

        catch(IOException e) { }

        }

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

      mTexture.setTexture(bitmap);

      if( mMesh==null ) mMesh = createJoinedMesh();

      mScreen.detachAll();

      mScreen.attach(mTexture,mEffects,mMesh);

      try

        {

        DistortedLibrary.onCreate(mView.getContext());

        }

      catch(Exception ex)

        {

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

        }

      }

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

    private MeshBase createJoinedMesh()

      {

      Static3D axis   = new Static3D(0,1,0);

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

      Static1D angle  = new Static1D(0);

      MatrixEffect[] effects = new MatrixEffect[2];

      effects[0] = new MatrixEffectMove(new Static3D(0,0,-0.5f));

      effects[1] = new MatrixEffectRotate( angle, axis, center );

      MeshBase[] meshes = new MeshQuad[4];

      for(int i=0; i<4; i++) meshes[i] = new MeshQuad();

      angle.set(0);

      meshes[0].apply(effects);

      angle.set(90);

      meshes[1].apply(effects);

      angle.set(180);

      meshes[2].apply(effects);

      angle.set(270);

      meshes[3].apply(effects);

      return new MeshJoined(meshes);

      }

}