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/>.                            //

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

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.opengl.GLSurfaceView;

import org.distorted.examples.R;

import org.distorted.library.effect.MatrixEffectQuaternion;

import org.distorted.library.effect.MatrixEffectScale;

import org.distorted.library.main.DistortedEffects;

import org.distorted.library.main.DistortedNode;

import org.distorted.library.main.DistortedScreen;

import org.distorted.library.main.DistortedTexture;

import org.distorted.library.mesh.MeshObject;

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;

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

    private static final float NEAR = 0.1f;

    private Static3D mCenterPoint, mRegionPoint, mRegionScalePoint;

    private boolean mShowingCenter=false;

    private boolean mShowingRegion=false;

      mView = v;

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

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

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

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

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

      mCenterTexture     = new DistortedTexture(100,100);

      mRegionTexture     = new DistortedTexture(100,100);

      DistortedEffects objectEffects     = act.getEffects();

      DistortedEffects backgroundEffects = new DistortedEffects();

      DistortedEffects centerEffects     = new DistortedEffects();

      DistortedEffects regionEffects     = new DistortedEffects();

      mObjHeight= mObjectTexture.getHeight();

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

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

      mRegionNode = new DistortedNode(mRegionTexture, regionEffects, quad);

      int regionSize = mRegionTexture.getWidth();

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

      MatrixEffectQuaternion quat1cen = new MatrixEffectQuaternion(mQuat1, mRotateCen);

      MatrixEffectQuaternion quat2cen = new MatrixEffectQuaternion(mQuat2, mRotateCen);

      MatrixEffectMove centerMove = new MatrixEffectMove(mCenterPoint);

      centerEffects.apply(quat1cen);

      centerEffects.apply(quat2cen);

      centerEffects.apply( new MatrixEffectMove(mMoveCenter) );

      centerEffects.apply( centerMove );

      centerEffects.apply( new MatrixEffectScale(mScaleCenter) );

      regionEffects.apply(quat1cen);

      regionEffects.apply(quat2cen);

      regionEffects.apply( new MatrixEffectMove(mMoveRegion) );

      regionEffects.apply( centerMove );

      regionEffects.apply( new MatrixEffectMove(mRegionPoint) );

      regionEffects.apply( new MatrixEffectScale(mRegionScalePoint) );

      regionEffects.apply( new MatrixEffectMove(new Static3D( -regionSize/2 , -regionSize/2 , 0)) );

      backgroundEffects.apply(new MatrixEffectMove(mMoveBackground) );

      backgroundEffects.apply(new MatrixEffectScale(mScaleBackground) );

    void resetMatrixEffects()

      {

      Effects3DActivity2 act = (Effects3DActivity2)mView.getContext();

      DistortedEffects objectEffects= act.getEffects();

      MeshObject mesh  = act.getMesh();

      int objDepth = mObjectTexture.getDepth(mesh);

      Static3D rotateObj = new Static3D( (float)mObjWidth/2, (float)mObjHeight/2, -(float)objDepth/2 );

      MatrixEffectQuaternion quat1obj = new MatrixEffectQuaternion(mQuat1,  rotateObj);

      MatrixEffectQuaternion quat2obj = new MatrixEffectQuaternion(mQuat2,  rotateObj);

      objectEffects.apply( new MatrixEffectMove(mMoveObject));

      objectEffects.apply( new MatrixEffectScale(mScaleObject) );

      objectEffects.apply(quat1obj);

      objectEffects.apply(quat2obj);

      mQuat1.set(0,0,0,1);

      mQuat2.set(0,0,0,1);

      }

        else             mScreen.detach(mCenterNode);

        mShowingCenter = showCenter;

        }

      if( mShowingRegion!=showRegion  )

        {

        if( showRegion ) mScreen.attach(mRegionNode);

        else             mScreen.detach(mRegionNode);

        mShowingRegion = showRegion;

    public int getWidth()

      {

      return mWidth;

      }

    void useOIT(boolean use)

      {

      mScreen.setOrderIndependentTransparency(use);

      }

    public void onDrawFrame(GL10 glUnused)

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

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

      int regionSize = mRegionTexture.getWidth();

        factorCen  = (0.08f*height)/centerSize;

        {

        factorCen  = (0.08f*width)/centerSize;

      mRegionPoint.set(mFactorObj*act.getRegionX(),-mFactorObj*act.getRegionY(),0);

      mRotateCen.set(width/2,height/2, 0);

                       (height-factorCen*centerSize-mFactorObj*mObjHeight)/2 , 15 );

      mScaleCenter.set(factorCen,factorCen,factorCen);

      mMoveRegion.set( (width -mFactorObj*mObjWidth )/2 ,(height-mFactorObj*mObjHeight)/2 , 12 );

      int backgroundSize = mBackgroundTexture.getWidth();

      float factorBackX = ((float)width)/backgroundSize;

      float factorBackY = ((float)height)/backgroundSize;

      // quite tricky: move the background exactly to the FAR plane! (see DistortedOutputSurface.setProjection() )

      mScaleBackground.set( 2*factorBackX, 2*factorBackY, 1.0f );

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

    public void onSurfaceCreated(GL10 glUnused, EGLConfig config)

      InputStream isC = act.getResources().openRawResource(R.raw.center);

      InputStream isR = act.getResources().openRawResource(R.raw.region);

      try 

        {

        bitmapC = BitmapFactory.decodeStream(isC);

        bitmapR = BitmapFactory.decodeStream(isR);

        {

        try 

          {

          isC.close();

          isR.close();

        }  

      mBackgroundTexture.setTexture(bitmapB);

      mCenterTexture.setTexture(bitmapC);

      mRegionTexture.setTexture(bitmapR);

        {

      catch(Exception ex)

        {

      }