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.movingglow;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.opengl.GLSurfaceView;

import org.distorted.examples.R;

import org.distorted.library.effect.FragmentEffectChroma;

import org.distorted.library.effect.MatrixEffectMove;

import org.distorted.library.effect.MatrixEffectRotate;

import org.distorted.library.effect.MatrixEffectScale;

import org.distorted.library.effect.PostprocessEffectGlow;

import org.distorted.library.main.DistortedLibrary;

import org.distorted.library.main.DistortedEffects;

import org.distorted.library.main.DistortedNode;

import org.distorted.library.main.DistortedScreen;

import org.distorted.library.main.DistortedTexture;

import org.distorted.library.mesh.MeshBase;

import org.distorted.library.mesh.MeshQuad;

import org.distorted.library.mesh.MeshRectangles;

import org.distorted.library.message.EffectListener;

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 MovingGlowRenderer implements GLSurfaceView.Renderer,EffectListener

{

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

   private static final int FLASH_TIME = 2000;

   private static final int LEAF_SIZE = 100;

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

   private GLSurfaceView mView;

   private DistortedTexture mLeaf;

   private DistortedScreen mScreen;

   private DistortedEffects[] mLeafEffects = new DistortedEffects[NUM_LEAVES];

   private PostprocessEffectGlow[] mGlow = new PostprocessEffectGlow[NUM_LEAVES];

   private int mRootW, mRootH;

   private int mGlowing;

   private Static3D mMove, mScale;

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

   MovingGlowRenderer(GLSurfaceView v)

      {     

      mView = v;

      mRootW = 5*LEAF_SIZE;

      mRootH = 5*LEAF_SIZE;

      mLeaf = new DistortedTexture();

      DistortedTexture surface = new DistortedTexture();

      MeshQuad rootMesh = new MeshQuad();

      rootMesh.setStretch(mRootW,mRootH,0);

      MeshQuad leafMesh = new MeshQuad();

      leafMesh.setStretch(LEAF_SIZE,LEAF_SIZE,0);

      DistortedEffects rootEffects = new DistortedEffects();

      DistortedNode root = new DistortedNode(surface, rootEffects, rootMesh);

      Static3D moveVector = new Static3D(0.55f*LEAF_SIZE, (mRootH-LEAF_SIZE)/2, 0);

      Static1D chromaLevel= new Static1D(0.5f);

      Static3D center     = new Static3D(mRootW/2, mRootH/2, 0);

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

      MatrixEffectMove leafMove = new MatrixEffectMove(moveVector);

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

        {

        mLeafEffects[j] = new DistortedEffects();

        mLeafEffects[j].apply(leafMove);

        mLeafEffects[j].apply( new MatrixEffectRotate(new Static1D(j*(360/NUM_LEAVES)), axis, center) );

        mLeafEffects[j].apply( new FragmentEffectChroma(chromaLevel, new Static3D(colors[3*j],colors[3*j+1], colors[3*j+2])) );

        DistortedNode node = new DistortedNode( mLeaf, mLeafEffects[j], leafMesh);

        root.attach(node);

        }

      mMove = new Static3D(0,0,0);

      mScale= new Static3D(1,1,1);

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

      rot.setMode(Dynamic1D.MODE_JUMP);

      rot.add(new Static1D(  0));

      rot.add(new Static1D(360));

      DistortedEffects effects = root.getEffects();

      effects.apply( new MatrixEffectRotate(rot, axis, center) );

      effects.apply(new MatrixEffectScale(mScale));

      effects.apply(new MatrixEffectMove(mMove));

      Dynamic1D radiusDyn = new Dynamic1D(FLASH_TIME,1.0f);

      radiusDyn.add(new Static1D( 0));

      radiusDyn.add(new Static1D(50));

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

        {

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

        Static4D P1    = new Static4D(colors[3*leaf],colors[3*leaf+1], colors[3*leaf+2], 0.0f);

        Static4D P2    = new Static4D(colors[3*leaf],colors[3*leaf+1], colors[3*leaf+2], 1.0f);

        color.add(P1);

        color.add(P2);

        mGlow[leaf] = new PostprocessEffectGlow(radiusDyn,color);

        }

      makeGlow(0);

      mScreen = new DistortedScreen();

      mScreen.attach(root);

      }

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

   private void makeGlow(int leaf)

     {

     mGlowing = leaf;

     mLeafEffects[leaf].apply(mGlow[leaf]);

     mGlow[leaf].notifyWhenFinished(this);

     }

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

// Glow finished. Make the next Leaf glow.

   public void effectFinished(final long effectID)

     {

     mLeafEffects[mGlowing].abortById(effectID);

     int glowing = mGlowing+1;

     if( glowing>=NUM_LEAVES ) glowing = 0;

     makeGlow(glowing);

     }

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

   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 = 0.9f* (qw<qh ? qw:qh);

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

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

     mMove.set((width-w)/2 ,(height-h)/2, 0);

     mScale.set( factor,factor,factor );

     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);

     FragmentEffectChroma.enable();

     PostprocessEffectGlow.enable();

     try

       {

       DistortedLibrary.onCreate(mView.getContext());

       }

     catch(Exception ex)

       {

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

       }

     }

}