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.graphics.Canvas;

import android.graphics.Paint;

import android.opengl.GLSurfaceView;

import org.distorted.examples.R;

import org.distorted.library.Distorted;

import org.distorted.library.DistortedEffects;

import org.distorted.library.DistortedEffectsPostprocess;

import org.distorted.library.DistortedNode;

import org.distorted.library.DistortedScreen;

import org.distorted.library.DistortedTexture;

import org.distorted.library.EffectNames;

import org.distorted.library.EffectTypes;

import org.distorted.library.MeshCubes;

import org.distorted.library.MeshFlat;

import org.distorted.library.type.Dynamic1D;

import org.distorted.library.type.Dynamic3D;

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 MultiblurRenderer implements GLSurfaceView.Renderer

{

    private static final int NUM_FRAMES  = 100;

    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 DistortedNode[] mNode;

    private DistortedEffectsPostprocess mPostEffects;

    private Static3D[]  mMoveVector;

    private Dynamic3D[] mMoveDynamic;

    private Static1D  mBlurVector;

    private Dynamic1D  mBlurDynamic;

    private DistortedScreen mScreen;

    private DynamicQuat mQuatInt1, mQuatInt2;

    private int mDistance;

    private boolean[] mBlurStatus;

    private int mScreenW, mScreenH;

    Static4D mQuat1, mQuat2;

    int mScreenMin;

    // FPS

    private DistortedTexture fpsTexture;

    private DistortedEffects fpsEffects;

    private Canvas fpsCanvas;

    private Bitmap fpsBitmap;

    private Paint mPaint;

    private int fpsH, fpsW;

    private String fpsString = "";

    private long lastTime=0;

    private long[] durations;

    private int currDuration;

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

    MultiblurRenderer(GLSurfaceView v)

      {

      mView = v;

      mDistance = -1;

      fpsW = 120;

      fpsH =  70;

      fpsTexture = new DistortedTexture(fpsW,fpsH);

      fpsBitmap = Bitmap.createBitmap(fpsW,fpsH, Bitmap.Config.ARGB_8888);

      fpsTexture.setTexture(fpsBitmap);

      fpsCanvas = new Canvas(fpsBitmap);

      fpsEffects = new DistortedEffects();

      durations = new long[NUM_FRAMES+1];

      currDuration = 0;

      mPaint = new Paint();

      mPaint.setAntiAlias(true);

      mPaint.setTextAlign(Paint.Align.CENTER);

      mPaint.setTextSize(0.7f*fpsH);

      for(int i=0; i<NUM_FRAMES+1; i++) durations[i]=0;

      mBlurStatus = new boolean[NUM_OBJECTS];

      mMoveDynamic= new Dynamic3D[NUM_OBJECTS];

      mMoveVector = new Static3D[NUM_OBJECTS];

      mNode       = new DistortedNode[NUM_OBJECTS];

      mEffects    = new DistortedEffects[NUM_OBJECTS];

      mPostEffects= new DistortedEffectsPostprocess();

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

        {

        mMoveVector[i]  = new Static3D(0,0,0);

        mEffects[i]     = new DistortedEffects();

        mMoveDynamic[i] = new Dynamic3D();

        mMoveDynamic[i].add(mMoveVector[i]);

        mBlurStatus[i] = false;

        }

      mBlurDynamic= new Dynamic1D();

      mBlurVector = new Static1D(10);

      mBlurDynamic.add(mBlurVector);

      mPostEffects.blur(mBlurDynamic);

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

      mTex1 = new DistortedTexture(1,1);

      mTex2 = new DistortedTexture(1,1);

      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 DistortedScreen();

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

        {

        mNode[i] = new DistortedNode(i < NUM_OBJECTS / 2 ? mTex1 : mTex2, mEffects[i], mesh);

        mScreen.attach(mNode[i]);

        }

      mScreen.attach(fpsTexture,fpsEffects,new MeshFlat(1,1));

      mBlurStatus[0] = true;

      mNode[0].setPostprocessEffects(mPostEffects);

      }

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

    public void onDrawFrame(GL10 glUnused) 

      {

      mPaint.setColor(0xffffffff);

      fpsCanvas.drawRect(0, 0, fpsW, fpsH, mPaint);

      mPaint.setColor(0xff000000);

      fpsCanvas.drawText(fpsString, fpsW/2, 0.75f*fpsH, mPaint);

      fpsTexture.setTexture(fpsBitmap);

      long time = System.currentTimeMillis();

      mScreen.render(time);

      computeFPS(time);

      }

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

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

      {

      mScreenMin = width<height ? width:height;

      mScreenW = width;

      mScreenH = height;

      fpsEffects.abortAllEffects();

      fpsEffects.move(  new Static3D( -0.5f + (fpsW/2 + 5.0f)/width, -0.5f + (fpsH/2 + 5.0f)/height,0.0f) );

      fpsEffects.scale( new Static3D( (float)fpsW/width, (float)fpsH/height, 1.0f) );

      float q= (float)width/height;

      float scale = 0.15f;

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

      Static3D factor = (q<1 ? (new Static3D(scale,scale*q,scale)) : (new Static3D(scale/q,scale,scale/q)));

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

        {

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

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

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

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

        mEffects[i].scale(factor);

        }

      computeMoveVectors();

      mScreen.resize(width, height);

      }

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

    public void onSurfaceCreated(GL10 glUnused, EGLConfig config) 

      {

      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);

      DistortedEffects.enableEffect(EffectNames.BLUR);

      try

        {

        Distorted.onCreate(mView.getContext());

        }

      catch(Exception ex)

        {

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

        }

      }

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

   private void computeFPS(long currentTime)

     {

     if( lastTime!=0 )

       {

       currDuration++;

       if( currDuration>=NUM_FRAMES ) currDuration = 0;

       durations[NUM_FRAMES] += ((currentTime-lastTime)-durations[currDuration]);

       durations[currDuration] = currentTime-lastTime;

       fpsString = "" + ((int)(10000.0f*NUM_FRAMES/durations[NUM_FRAMES]))/10.0f;

       }

     lastTime = currentTime;

     }

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

    private void computeMoveVectors()

      {

      float size = 2.6f*mDistance;

      float sizeX= size/mScreenW;

      float sizeY= size/mScreenH;

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

        {

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

        }

      }

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

    void setDistance(int distance)

      {

      mDistance = distance;

      computeMoveVectors();

      }

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

    void setRange(int range)

      {

      mBlurVector.set(range/2);

      }

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

   boolean[] getChecked()

     {

     return mBlurStatus;

     }

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

   void setChecked(int number, boolean checked)

     {

     if( number>=0 && number<=7 )

       {

       if( checked && !mBlurStatus[number] )

         {

         mBlurStatus[number] = true;

         mNode[number].setPostprocessEffects(mPostEffects);

         }

       if( !checked && mBlurStatus[number] )

         {

         mBlurStatus[number] = false;

         mNode[number].setPostprocessEffects(null);

         }

       }

     else

       {

       android.util.Log.e("renderer", "Error, number: "+number+" checked: "+checked );

       }

     //android.util.Log.d("renderer", "setting box "+number+" BLUR state to "+checked);

     }

}