Distorted Android

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// 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.Distorted;

import org.distorted.library.DistortedEffects;

import org.distorted.library.DistortedNode;

import org.distorted.library.DistortedScreen;

import org.distorted.library.DistortedTexture;

import org.distorted.library.EffectNames;

import org.distorted.library.EffectTypes;

import org.distorted.library.MeshFlat;

import org.distorted.library.MeshObject;

import org.distorted.library.type.Dynamic1D;

import org.distorted.library.type.Static1D;

import org.distorted.library.type.Static3D;

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

{

   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 int mRootW, mRootH;

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

   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++)

        {

        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]) );

        mRoot.attach( mLeaf, leafEffects[j], mesh);

        }

      mScreen = new DistortedScreen(mView);

      mScreen.attach(mRoot);

      }

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

    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() );

        }

      }

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

}