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 javax.microedition.khronos.egl.EGLConfig;

import javax.microedition.khronos.opengles.GL10;

import org.distorted.library.DistortedBitmap;

import org.distorted.library.type.Static3D;

import org.distorted.library.type.Static4D;

import android.graphics.Bitmap;

import android.graphics.Canvas;

import android.graphics.Paint;

import android.graphics.Paint.Style;

import android.opengl.GLES20;

import android.opengl.GLSurfaceView;

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

class DeformRenderer implements GLSurfaceView.Renderer 

{

   private static final int NUM_VECTORS = 8;

   private static final int NUM_FRAMES =10;

   private GLSurfaceView mView;

   private DistortedBitmap fps;

   private DistortedBitmap stretch;

   private Dynamic3D mMovingDistortDynamic;

   private Static3D[] vDistort;

   private Dynamic3D mReleasedDeformDynamic;

   private Dynamic3D mMovingDeformDynamic;

   private Static3D[] vDeform;

   private Dynamic3D mReleasedShearDynamic;

   private Dynamic3D mMovingShearDynamic;

   private Static3D[] vShear;

   private Paint mPaint;

   private int fpsH, fpsW;

   private String fpsString = "";

   private long lastTime=0;

   private long[] durations;

   private int currDuration;

   private boolean bitmapCreated = false;

   private long mLastEffect = -1;

      mView = view;

        durations[i]=0;

        }

      // DISTORT

      mReleasedDistortDynamic = new Dynamic3D(NUM_VECTORS*500, 0.5f);

      mReleasedDistortDynamic.setMode(Dynamic3D.MODE_PATH);

      mMovingDistortDynamic = new Dynamic3D(0,0.5f);

      mMovingDistortDynamic.setMode(Dynamic3D.MODE_PATH);

        {

        mReleasedDistortDynamic.add(vDistort[i]);

      mReleasedDeformDynamic = new Dynamic3D(NUM_VECTORS*500, 0.5f);

      mReleasedDeformDynamic.setMode(Dynamic3D.MODE_PATH);

      mMovingDeformDynamic = new Dynamic3D(0,0.5f);

      mMovingDeformDynamic.setMode(Dynamic3D.MODE_PATH);

      vDeform = new Static3D[NUM_VECTORS];

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

        mReleasedDeformDynamic.add(vDeform[i]);

      mMovingDeformDynamic.add(vDeform[0]);

      // Shear

      mReleasedShearDynamic = new Dynamic3D(NUM_VECTORS*500, 0.5f);

      mReleasedShearDynamic.setMode(Dynamic3D.MODE_PATH);

      mMovingShearDynamic = new Dynamic3D(0,0.5f);

      mMovingShearDynamic.setMode(Dynamic3D.MODE_PATH);

      vShear = new Static3D[NUM_VECTORS];

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

        {

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

        mReleasedShearDynamic.add(vShear[i]);

        }

      mMovingShearDynamic.add(vShear[0]);

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

      mMode = mode;  

      }

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

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

      bitmapCreated = false;  

      }

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

    public void onDrawFrame(GL10 glUnused) 

      {

      GLES20.glClear( GLES20.GL_DEPTH_BUFFER_BIT | GLES20.GL_COLOR_BUFFER_BIT);

      long time = System.currentTimeMillis();

      stretch.draw(time);

      mPaint.setColor(0xffffffff);

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

      mPaint.setColor(0xff000000);

      fpsCanvas.drawText(fpsString, fpsW/2, 5*fpsH/6, mPaint);

      fps.setBitmap(fpsBitmap);

      fps.draw(time);

      computeFPS(time);

      }

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

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

      { 

      scrHeight = height;

      scrWidth  = width;

      setRegionRadius(50);

      if( bitmapCreated==false )

        {

        createBitmap(scrWidth/2,scrHeight/2);

        fps.move( new Static3D(5,5,0) );

        }

      else

        {

        stretch.abortEffects(EffectTypes.FRAGMENT);

      }

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

    public void onSurfaceCreated(GL10 glUnused, EGLConfig config) 

      GLES20.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);

        {

      catch(Exception ex)

        {

        android.util.Log.e("DeformRenderer", ex.toString() );

        }

      }

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

    private void createBitmap(int w, int h)

      {  

      Canvas stretchCanvas;   

      mPaint = new Paint();

      stretch = new DistortedBitmap(w,h, 50);   

      fpsW = scrWidth/5;

      fpsH = fpsW/2;

      mPaint.setAntiAlias(true);

      mPaint.setTextAlign(Paint.Align.CENTER);

      mPaint.setTextSize(2*fpsH/3);

      mPaint.setColor(0xff008800);

      mPaint.setStyle(Style.FILL);

      stretchCanvas.drawRect(0, 0, w, h, mPaint);

      mPaint.setColor(0xffffffff);

        stretchCanvas.drawRect(                0, h *i/NUM_LINES -1,  w                ,  h*i/NUM_LINES + 1, mPaint);

      fps = new DistortedBitmap( fpsW, fpsH, 2);

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

      fpsCanvas = new Canvas(fpsBitmap);

      stretch.setBitmap(stretchBitmap);

      fps.setBitmap(fpsBitmap);

      }

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

      int xt = x-scrWidth/4;

      int yt = y-scrHeight/4;

      if( xt<0 ) xt=0;

      if( xt>scrWidth/2 ) xt=scrWidth/2;

      if( yt<0 ) yt=0;

      if( yt>scrHeight/2 ) yt=scrHeight/2;

      touchPoint.set(xt,yt,0);

        {

        case DEFORM : vDeform[0].set(0,0,0);

        case SHEAR  : vShear[0].set(0,0,0);

                      mLastEffect = stretch.shear(mMovingShearDynamic, touchPoint);

                      break;

      }

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

                      break;

        case DEFORM:  vDeform[0].set(x,y);

                      break;

        case SHEAR:   vShear[0].set( (float)x/(scrWidth/2), (float)y/(scrHeight/2));

                      break;

      }

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

        {

                        {

                        vDistort[i].set( vDistort[i-1].getX()*damp, vDistort[i-1].getY()*damp );

                        }

                      vDistort[NUM_VECTORS-1].set(0,0);

        case DEFORM : for(int i=1; i<NUM_VECTORS-1; i++)

                        {

                        vDeform[i].set( vDeform[i-1].getX()*damp, vDeform[i-1].getY()*damp );

                        }

                      vDeform[NUM_VECTORS-1].set(0,0);

        case SHEAR  : for(int i=1; i<NUM_VECTORS-1; i++)

                        {

                        vShear[i].set( vShear[i-1].getX()*damp, vShear[i-1].getY()*damp );

                        }

                      vShear[NUM_VECTORS-1].set(0,0);

                      stretch.shear(mReleasedShearDynamic, touchPoint);

                      break;

      }

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

    private void computeFPS(long currentTime)

      {

      if( lastTime!=0 )

        {

        currDuration++;

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

      lastTime = currentTime;   

      }

}