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.glow;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.opengl.GLSurfaceView;

import org.distorted.examples.R;

import org.distorted.library.main.Distorted;

import org.distorted.library.main.DistortedEffects;

import org.distorted.library.main.DistortedEffectsPostprocess;

import org.distorted.library.main.DistortedNode;

import org.distorted.library.main.DistortedScreen;

import org.distorted.library.main.DistortedTexture;

import org.distorted.library.EffectNames;

import org.distorted.library.EffectTypes;

import org.distorted.library.main.MeshFlat;

import org.distorted.library.main.MeshObject;

import org.distorted.library.message.EffectListener;

import org.distorted.library.message.EffectMessage;

import org.distorted.library.type.Dynamic1D;

import org.distorted.library.type.Dynamic4D;

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 GlowRenderer implements GLSurfaceView.Renderer,EffectListener

{

   private static final int[] colors  = new int[] {0,0,1,  0,0,0,  1,0,0,  1,1,0,  0,1,0,  1,1,1}; // blue, black, red, yellow, green, white

   private static final int LEAF_SIZE = 100;

   private static final int NUM_LEAVES= colors.length/3;

   private GLSurfaceView mView;

   private DistortedNode mRoot;

   private DistortedTexture mLeaf;

   private DistortedScreen mScreen;

   private DistortedEffectsPostprocess[] mLeafGlow = new DistortedEffectsPostprocess[NUM_LEAVES];

   private int mRootW, mRootH;

   private int mGlowing;

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

   GlowRenderer(GLSurfaceView v)

      {     

      mView = v;

      mRootW = 3*LEAF_SIZE;

      mRootH = 3*LEAF_SIZE;

      mLeaf = new DistortedTexture(LEAF_SIZE,LEAF_SIZE);

      DistortedTexture surface = new DistortedTexture(mRootW,mRootH);

      MeshObject mesh = new MeshFlat(1,1);

      DistortedEffects[] leafEffects = new DistortedEffects[NUM_LEAVES];

      mRoot = new DistortedNode(surface, new DistortedEffects(), mesh);

      Static3D moveVector = new Static3D(0,LEAF_SIZE,0);

      Static1D chromaLevel= new Static1D(0.5f);

      Static3D center     = new Static3D(3*LEAF_SIZE/2, 3*LEAF_SIZE/2, 0);

      Static3D axis       = new Static3D(0,0,1);

      for(int j=0; j<NUM_LEAVES; j++)

        {

        mLeafGlow[j] = new DistortedEffectsPostprocess();

        mLeafGlow[j].registerForMessages(this);

        leafEffects[j] = new DistortedEffects();

        leafEffects[j].rotate( new Static1D(j*(360/NUM_LEAVES)), axis, center );

        leafEffects[j].move(moveVector);

        leafEffects[j].chroma( chromaLevel, new Static3D(colors[3*j],colors[3*j+1], colors[3*j+2]) );

        DistortedNode node = new DistortedNode( mLeaf, leafEffects[j], mesh);

        node.setPostprocessEffects(mLeafGlow[j]);

        mRoot.attach(node);

        }

      makeGlow(0);

      mScreen = new DistortedScreen(mView);

      mScreen.attach(mRoot);

      }

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

   private void makeGlow(int leaf)

     {

     //android.util.Log.e("glow", "glowing: "+leaf);

     mGlowing = leaf;

     Dynamic1D radius = new Dynamic1D(5000,1.0f);

     Static1D startR  = new Static1D( 0);

     Static1D endR    = new Static1D(50);

     radius.add(startR);

     radius.add(endR);

     Dynamic4D color  = new Dynamic4D(5000,1.0f);

     Static4D startC  = new Static4D(colors[3*leaf],colors[3*leaf+1], colors[3*leaf+2], 0);

     Static4D endC    = new Static4D(colors[3*leaf],colors[3*leaf+1], colors[3*leaf+2], 1);

     color.add(startC);

     color.add(endC);

     mLeafGlow[leaf].glow( radius, color );

     }

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

// Glow finished. Make the next Leaf glow.

   public void effectMessage(final EffectMessage em, final long effectID, final EffectNames effectName, final long objectID)

     {

     switch(em)

       {

       case EFFECT_FINISHED: //android.util.Log.e("glow", "effectMessage FINISHED");

                             int glowing = mGlowing+1;

                             if( glowing>=NUM_LEAVES ) glowing = 0;

                             makeGlow(glowing);

                             break;

       default:              //android.util.Log.e("glow", "effectMessage REMOVED");

                             break;

       }

     }

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

   public void onDrawFrame(GL10 glUnused)

     {

     mScreen.render(System.currentTimeMillis());

     }

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

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

     {

     float qw = (float)width /mRootW;

     float qh = (float)height/mRootH;

     float factor = 0.6f* (qw<qh ? qw:qh);

     int w = (int)(factor*mRootW);

     int h = (int)(factor*mRootH);

     Dynamic1D rot = new Dynamic1D(5000,0.0f);

     rot.setMode(Dynamic1D.MODE_JUMP);

     rot.add(new Static1D(  0));

     rot.add(new Static1D(360));

     Static3D center = new Static3D(3*LEAF_SIZE/2, 3*LEAF_SIZE/2, 0);

     Static3D axis   = new Static3D(0,0,1);

     DistortedEffects effects = mRoot.getEffects();

     effects.abortEffects(EffectTypes.MATRIX);

     effects.move( new Static3D((width-w)/2 ,(height-h)/2, 0) );

     effects.scale( factor );

     effects.rotate( rot, axis, center );

     mScreen.resize(width, height);

     }

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

   public void onSurfaceCreated(GL10 glUnused, EGLConfig config)

     {

     InputStream is = mView.getContext().getResources().openRawResource(R.raw.leaf);

     Bitmap leaf;

     try

       {

       leaf = BitmapFactory.decodeStream(is);

       }

     finally

       {

       try

         {

         is.close();

         }

       catch(IOException e) { }

       }

     mLeaf.setTexture(leaf);

     DistortedEffects.enableEffect(EffectNames.CHROMA);

     DistortedEffects.enableEffect(EffectNames.GLOW);

     try

       {

       Distorted.onCreate(mView.getContext());

       }

     catch(Exception ex)

       {

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

       }

     }

}