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examples / src / main / java / org / distorted / examples / sink / SinkRenderer.java @ f209a803

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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.sink;
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import java.io.IOException;
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import java.io.InputStream;
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import javax.microedition.khronos.egl.EGLConfig;
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import javax.microedition.khronos.opengles.GL10;
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import org.distorted.examples.R;
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import org.distorted.library.effect.MatrixEffectScale;
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import org.distorted.library.effect.VertexEffectSink;
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import org.distorted.library.main.DistortedLibrary;
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import org.distorted.library.main.DistortedEffects;
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import org.distorted.library.main.DistortedScreen;
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import org.distorted.library.mesh.MeshRectangles;
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import org.distorted.library.main.DistortedTexture;
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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.Static3D;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.opengl.GLSurfaceView;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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class SinkRenderer implements GLSurfaceView.Renderer 
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  {
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  private GLSurfaceView mView;
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  private DistortedEffects mEffects;
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  private DistortedScreen mScreen;
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  private DistortedTexture mTexture;
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  private MeshRectangles mMesh;
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  private Static3D mScale;
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  private float mBmpRatio;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  SinkRenderer(GLSurfaceView v)
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    { 
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    mView = v;
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    Dynamic1D sinkStrength = new Dynamic1D(2000,0.0f);
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    sinkStrength.add(new Static1D(1.0f));
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    sinkStrength.add(new Static1D(0.2f));
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    mEffects = new DistortedEffects();
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    // strength [changing in time from 1.0 to 0.2 and back],
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    // center   [(0,0,0), i.e. center of the bitmap],
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    // region   [null - apply to the whole bitmap
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    VertexEffectSink sinkEffect = new VertexEffectSink(sinkStrength, new Static3D(0,0,0), null);
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    mEffects.apply(sinkEffect);
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    mScale = new Static3D(1,1,1);
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    mEffects.apply(new MatrixEffectScale(mScale));
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    mScreen = new DistortedScreen();
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  public void onDrawFrame(GL10 glUnused) 
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    {
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    mScreen.render( System.currentTimeMillis() );
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  public void onSurfaceChanged(GL10 glUnused, int width, int height) 
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    {
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    float min= width>height ? height : width;
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    mScale.set( min, min*mBmpRatio, 1 );
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    mScreen.resize(width, height);
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  public void onSurfaceCreated(GL10 glUnused, EGLConfig config) 
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    {
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    InputStream is = mView.getContext().getResources().openRawResource(R.raw.cat);
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    Bitmap bitmap;
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    try 
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      {
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      bitmap = BitmapFactory.decodeStream(is);
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      } 
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    finally 
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      {
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      try 
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        {
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        is.close();
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        } 
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      catch(IOException e) { }
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      }  
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    mBmpRatio = (float)bitmap.getHeight()/bitmap.getWidth();
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    if( mTexture==null ) mTexture = new DistortedTexture();
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    mTexture.setTexture(bitmap);
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    if( mMesh==null ) mMesh = new MeshRectangles(30,(int)(30*mBmpRatio));
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    mScreen.detachAll();
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    mScreen.attach(mTexture,mEffects,mMesh);
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    VertexEffectSink.enable();
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    try
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      {
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      DistortedLibrary.onCreate(mView.getContext());
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      }
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    catch(Exception ex)
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      {
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      android.util.Log.e("Sink", ex.getMessage() );
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      }
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    }
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  }