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.multiblur;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.opengl.GLES30;

import android.opengl.GLSurfaceView;

import org.distorted.examples.R;

import org.distorted.library.Distorted;

import org.distorted.library.DistortedEffects;

import org.distorted.library.DistortedFramebuffer;

import org.distorted.library.DistortedTexture;

import org.distorted.library.EffectTypes;

import org.distorted.library.MeshCubes;

import org.distorted.library.MeshObject;

import org.distorted.library.type.DynamicQuat;

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 MultiblurRenderer implements GLSurfaceView.Renderer

{

    private static final int[] MOVE_VEC =

        {

        +1,+1,+1,

        +1,-1,+1,

        +1,+1,-1,

        +1,-1,-1,

        -1,+1,+1,

        -1,-1,+1,

        -1,+1,-1,

        -1,-1,-1

        };

    private static final int NUM_OBJECTS = MOVE_VEC.length/3;

    private GLSurfaceView mView;

    private DistortedTexture mTex1, mTex2;

    private DistortedEffects[] mEffects;

    private Static3D[] mMoveVector;

    private MeshObject mMesh;

    private DistortedFramebuffer mScreen;

    private DynamicQuat mQuatInt1, mQuatInt2;

    private int mObjWidth, mObjHeight;

    Static4D mQuat1, mQuat2;

    int mScreenMin;

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

    MultiblurRenderer(GLSurfaceView v)

      {

      mView = v;

      mMoveVector = new Static3D[NUM_OBJECTS];

      for(int i=0; i<NUM_OBJECTS; i++) mMoveVector[i] = new Static3D(0,0,0);

      mEffects = new DistortedEffects[NUM_OBJECTS];

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

      mMesh = new MeshCubes(1,1,false);

      mTex1 = new DistortedTexture(100,100);

      mTex2 = new DistortedTexture(100,100);

      mObjWidth = mTex1.getWidth();

      mObjHeight= mTex2.getHeight();

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

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

      mQuatInt1 = new DynamicQuat(0,0.5f);

      mQuatInt2 = new DynamicQuat(0,0.5f);

      mQuatInt1.add(mQuat1);

      mQuatInt2.add(mQuat2);

      mScreen = new DistortedFramebuffer(0);

      }

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

    public void onDrawFrame(GL10 glUnused) 

      {

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

      long time = System.currentTimeMillis();

      for(int i=0; i<NUM_OBJECTS; i++)

        mScreen.renderTo( i<NUM_OBJECTS/2 ? mTex1:mTex2, mMesh, mEffects[i], time );

      }

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

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

      {

      mScreenMin = width<height ? width:height;

      Static3D center = new Static3D( (float)mObjWidth/2, (float)mObjHeight/2, 0.0f );

      float factor = Math.min((0.15f*height)/mObjHeight,(0.15f*width )/mObjWidth);

      float xMove  =(width -factor*mObjWidth )/2;

      float yMove  =(height-factor*mObjHeight)/2;

      float size   = 1.3f*mObjWidth;

      for(int i=0; i<NUM_OBJECTS; i++)

        {

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

        mMoveVector[i].set(xMove,yMove,0);

        mEffects[i].move(mMoveVector[i]);

        mEffects[i].scale(factor);

        mEffects[i].quaternion(mQuatInt1, center);

        mEffects[i].quaternion(mQuatInt2, center);

        mMoveVector[i].set(size*MOVE_VEC[3*i], size*MOVE_VEC[3*i+1], size*MOVE_VEC[3*i+2]);

        mEffects[i].move(mMoveVector[i]);

        }

      mScreen.resize(width, height);

      }

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

    public void onSurfaceCreated(GL10 glUnused, EGLConfig config) 

      {

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

      InputStream is1 = mView.getContext().getResources().openRawResource(R.raw.cat);

      InputStream is2 = mView.getContext().getResources().openRawResource(R.raw.dog);

      Bitmap bitmap1,bitmap2;

      try 

        {

        bitmap1 = BitmapFactory.decodeStream(is1);

        bitmap2 = BitmapFactory.decodeStream(is2);

        }

      finally 

        {

        try 

          {

          is1.close();

          is2.close();

          }

        catch(IOException e) { }

        }  

      mTex1.setTexture(bitmap1);

      mTex2.setTexture(bitmap2);

      try

        {

        Distorted.onCreate(mView.getContext());

        }

      catch(Exception ex)

        {

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

        }

      }

}