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examples / src / main / java / org / distorted / examples / scratchpad / ScratchpadSurfaceView.java @ 59759251

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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2016 Leszek Koltunski                                                               //
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//                                                                                               //
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// This file is part of Distorted.                                                               //
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//                                                                                               //
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// Distorted is free software: you can redistribute it and/or modify                             //
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// it under the terms of the GNU General Public License as published by                          //
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// the Free Software Foundation, either version 2 of the License, or                             //
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// (at your option) any later version.                                                           //
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//                                                                                               //
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// Distorted is distributed in the hope that it will be useful,                                  //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 //
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// GNU General Public License for more details.                                                  //
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//                                                                                               //
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// You should have received a copy of the GNU General Public License                             //
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// along with Distorted.  If not, see <http://www.gnu.org/licenses/>.                            //
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///////////////////////////////////////////////////////////////////////////////////////////////////
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package org.distorted.examples.scratchpad;
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import android.content.Context;
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import android.opengl.GLSurfaceView;
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import android.os.Build;
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import android.view.MotionEvent;
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import android.util.AttributeSet;
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import org.distorted.library.type.Dynamic1D;
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import org.distorted.library.type.Static1D;
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import org.distorted.library.type.Static2D;
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import org.distorted.library.type.Static3D;
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import org.distorted.library.type.Static4D;
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import org.distorted.library.type.Dynamic3D;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public class ScratchpadSurfaceView extends GLSurfaceView
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  {
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  private ScratchpadRenderer mRenderer;
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  private static int mCurrentEffect;
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  private static int mDuration;
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  private static float mCount;
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  private static int mScrW, mScrH;
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  private static Static4D region;
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  private static Static2D point;
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  private static Static4D mRegion;
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  private static Dynamic1D mInterA, mInterM, mInterB;
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  private static Dynamic3D mInterD;
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  private static Static3D v0, v1, v2, v3;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  public ScratchpadSurfaceView(Context c, AttributeSet attrs) 
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    {
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    super(c, attrs);
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    mDuration = 10000;
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    mCount    = 1.0f;
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    mInterD = new Dynamic3D();
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    mInterD.setDuration(mDuration);
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    mInterD.setCount(mCount);
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    int h = 30;
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    int r = 20;
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    v0 = new Static3D( 0, r, h );
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    v1 = new Static3D(-r, 0, h );
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    v2 = new Static3D( 0,-r, h );
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    v3 = new Static3D( r, 0, h );
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    mInterD.add(v0);
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    mInterD.add(v1);
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    mInterD.add(v2);
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    mInterD.add(v3);
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    mInterA = new Dynamic1D();
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    mInterA.setDuration(mDuration);
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    mInterA.setCount(mCount);
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    mInterA.add(new Static1D(1));
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    mInterA.add(new Static1D(0));
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    mInterB = new Dynamic1D();
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    mInterB.setDuration(mDuration);
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    mInterB.setCount(mCount);
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    mInterB.add(new Static1D(1));
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    mInterB.add(new Static1D(0));
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    mInterM = new Dynamic1D();
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    mInterM.setDuration(mDuration);
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    mInterM.setCount(mCount);
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    mInterM.add(new Static1D(1));
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    mInterM.add(new Static1D(10));
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    if(!isInEditMode())
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      {
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      setFocusable(true);
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      setFocusableInTouchMode(true);
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      setEGLContextClientVersion(2);
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      if( Build.FINGERPRINT.startsWith("generic") ) // when running on the emulator, insert a magic line that is
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        {                                           // supposed to cure the 'no config chosen' crash on emulator startup
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        setEGLConfigChooser(8, 8, 8, 8, 16, 0);   
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        }
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      mRenderer = new ScratchpadRenderer(this);
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      setRenderer(mRenderer);
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      point = new Static2D(0,0);
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      region= new Static4D(0,0,60,60);
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      mRegion = new Static4D(0,0,60,60);
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      setEffect(0);  
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      }
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  public static void setScreenSize(int width, int height)
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    {
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    mScrW = width;
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    mScrH = height;
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  public static int getEffect()
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    {
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    return mCurrentEffect;
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  public static void setEffect(int effect)
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    {
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    mCurrentEffect = effect;
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  public static void setDuration(int duration)
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    {
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    mDuration = duration;
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    mInterD.setDuration(duration);
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    mInterA.setDuration(duration);
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    mInterB.setDuration(duration);
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    mInterM.setDuration(duration);
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  public static void setCount(float count)
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    {
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    mCount = count;
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    mInterD.setCount(count);
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    mInterA.setCount(count);
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    mInterB.setCount(count);
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    mInterM.setCount(count);
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  @Override public boolean onTouchEvent(MotionEvent event) 
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    {
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    int action = event.getAction();
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    int x, y;
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    switch(action)
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      {
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      case MotionEvent.ACTION_DOWN: x = (int)event.getX()*ScratchpadRenderer.BWID/mScrW;
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                                    y = (int)event.getY()*ScratchpadRenderer.BHEI/mScrH;
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                                    point.set(x,y);
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                                    mRegion.set(x,y,60,60);
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                                    switch(mCurrentEffect)
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                                      {
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                                      case 0: ScratchpadRenderer.mBackground.distort(mInterD, region, point);
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                                           break;
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                                      case 1: ScratchpadRenderer.mBackground.sink(0.3f, region, point, mDuration, mCount); 
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                                           break;
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                                      case 2: ScratchpadRenderer.mBackground.alpha(mInterA, mRegion, false);
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                                           break;  
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                                      case 3: ScratchpadRenderer.mBackground.macroblock(mInterM, mRegion);
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                                           break;
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                                      case 4: ScratchpadRenderer.mBackground.brightness(mInterB, mRegion, false);
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                                           break;      
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                                      }
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                                    break;
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      }
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    return true;
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    }
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  }