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.scratchpad;

import android.content.Context;

import android.opengl.GLSurfaceView;

import android.os.Build;

import android.view.MotionEvent;

import android.util.AttributeSet;

import org.distorted.library.type.Dynamic1D;

import org.distorted.library.type.Static1D;

import org.distorted.library.type.Static2D;

import org.distorted.library.type.Static3D;

import org.distorted.library.type.Static4D;

import org.distorted.library.type.Dynamic3D;

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

public class ScratchpadSurfaceView extends GLSurfaceView

  {

  private ScratchpadRenderer mRenderer;

  private static int mCurrentEffect;

  private static int mDuration;

  private static float mCount;

  private static int mScrW, mScrH;

  private static Static4D region;

  private static Static2D point;

  private static Static4D mRegion;

  private static Dynamic1D mInterA, mInterM, mInterB;

  private static Dynamic3D mInterD;

  private static Static3D v0, v1, v2, v3;

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

  public ScratchpadSurfaceView(Context c, AttributeSet attrs) 

    {

    super(c, attrs);

    mDuration = 10000;

    mCount    = 1.0f;

    mInterD = new Dynamic3D();

    mInterD.setDuration(mDuration);

    mInterD.setCount(mCount);

    int h = 30;

    int r = 20;

    v0 = new Static3D( 0, r, h );

    v1 = new Static3D(-r, 0, h );

    v2 = new Static3D( 0,-r, h );

    v3 = new Static3D( r, 0, h );

    mInterD.add(v0);

    mInterD.add(v1);

    mInterD.add(v2);

    mInterD.add(v3);

    mInterA = new Dynamic1D();

    mInterA.setDuration(mDuration);

    mInterA.setCount(mCount);

    mInterA.add(new Static1D(1));

    mInterA.add(new Static1D(0));

    mInterB = new Dynamic1D();

    mInterB.setDuration(mDuration);

    mInterB.setCount(mCount);

    mInterB.add(new Static1D(1));

    mInterB.add(new Static1D(0));

    mInterM = new Dynamic1D();

    mInterM.setDuration(mDuration);

    mInterM.setCount(mCount);

    mInterM.add(new Static1D(1));

    mInterM.add(new Static1D(10));

    if(!isInEditMode())

      {

      setFocusable(true);

      setFocusableInTouchMode(true);

      setEGLContextClientVersion(2);

      if( Build.FINGERPRINT.startsWith("generic") ) // when running on the emulator, insert a magic line that is

        {                                           // supposed to cure the 'no config chosen' crash on emulator startup

        setEGLConfigChooser(8, 8, 8, 8, 16, 0);   

        }

      mRenderer = new ScratchpadRenderer(this);

      setRenderer(mRenderer);

      point = new Static2D(0,0);

      region= new Static4D(0,0,60,60);

      mRegion = new Static4D(0,0,60,60);

      setEffect(0);  

      }

    }

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

  public static void setScreenSize(int width, int height)

    {

    mScrW = width;

    mScrH = height;

    }

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

  public static int getEffect()

    {

    return mCurrentEffect;

    }

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

  public static void setEffect(int effect)

    {

    mCurrentEffect = effect;

    }

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

  public static void setDuration(int duration)

    {

    mDuration = duration;

    mInterD.setDuration(duration);

    mInterA.setDuration(duration);

    mInterB.setDuration(duration);

    mInterM.setDuration(duration);

    }

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

  public static void setCount(float count)

    {

    mCount = count;

    mInterD.setCount(count);

    mInterA.setCount(count);

    mInterB.setCount(count);

    mInterM.setCount(count);

    }

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

  @Override public boolean onTouchEvent(MotionEvent event) 

    {

    int action = event.getAction();

    int x, y;

    switch(action)

      {

      case MotionEvent.ACTION_DOWN: x = (int)event.getX()*ScratchpadRenderer.BWID/mScrW;

                                    y = (int)event.getY()*ScratchpadRenderer.BHEI/mScrH;

                                    point.set(x,y);

                                    mRegion.set(x,y,60,60);

                                    switch(mCurrentEffect)

                                      {

                                      case 0: ScratchpadRenderer.mBackground.distort(mInterD, region, point);

                                           break;

                                      case 1: ScratchpadRenderer.mBackground.sink(0.3f, region, point, mDuration, mCount); 

                                           break;

                                      case 2: ScratchpadRenderer.mBackground.alpha(mInterA, mRegion, false);

                                           break;  

                                      case 3: ScratchpadRenderer.mBackground.macroblock(mInterM, mRegion);

                                           break;

                                      case 4: ScratchpadRenderer.mBackground.brightness(mInterB, mRegion, false);

                                           break;      

                                      }

                                    break;

      }

    return true;

    }

  }