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.deferredjob;

import android.graphics.Bitmap;

import android.graphics.Canvas;

import android.graphics.Paint;

import android.opengl.GLSurfaceView;

import org.distorted.library.effect.EffectType;

import org.distorted.library.effect.MatrixEffectQuaternion;

import org.distorted.library.effect.MatrixEffectScale;

import org.distorted.library.effect.VertexEffectMove;

import org.distorted.library.effect.VertexEffectRotate;

import org.distorted.library.main.DistortedEffects;

import org.distorted.library.main.DistortedLibrary;

import org.distorted.library.main.DistortedScreen;

import org.distorted.library.main.DistortedTexture;

import org.distorted.library.mesh.MeshBase;

import org.distorted.library.mesh.MeshJoined;

import org.distorted.library.mesh.MeshRectangles;

import org.distorted.library.type.Dynamic1D;

import org.distorted.library.type.DynamicQuat;

import org.distorted.library.type.Static1D;

import org.distorted.library.type.Static3D;

import org.distorted.library.type.Static4D;

import javax.microedition.khronos.egl.EGLConfig;

import javax.microedition.khronos.opengles.GL10;

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

class DeferredJobRenderer implements GLSurfaceView.Renderer

{

    private GLSurfaceView mView;

    private DistortedTexture mTexture;

    private DistortedScreen mScreen;

    private DistortedEffects mEffects;

    private Static3D mScale;

    private MeshBase mMesh;

    private VertexEffectRotate mRotate;

    private Dynamic1D mAngleDyn;

    private Static1D mAngle;

    Static4D mQuat1, mQuat2;

    int mScreenMin;

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

    DeferredJobRenderer(GLSurfaceView v)

      {

      mView = v;

      mScreen = new DistortedScreen();

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

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

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

      sink.add( new Static1D(0.5f) );

      sink.add( new Static1D(2.0f) );

      mQuat1 = new Static4D(0,0,0,1);  // unity

      mQuat2 = new Static4D(0,0,0,1);  // quaternions

      DynamicQuat quatInt1 = new DynamicQuat(0,0.5f);

      DynamicQuat quatInt2 = new DynamicQuat(0,0.5f);

      quatInt1.add(mQuat1);

      quatInt2.add(mQuat2);

      mAngle = new Static1D(0);

      mAngleDyn = new Dynamic1D(2000,0.5f);

      mAngleDyn.add(new Static1D(0));

      mAngleDyn.add( mAngle );

      mRotate = new VertexEffectRotate( mAngleDyn, new Static3D(1,0,0), new Static3D(0,0,0) );

      mEffects = new DistortedEffects();

      mEffects.apply( mRotate );

      mEffects.apply( new MatrixEffectQuaternion(quatInt2, center) );

      mEffects.apply( new MatrixEffectQuaternion(quatInt1, center) );

      mEffects.apply( new MatrixEffectScale(mScale));

      mScreen.glClearColor(1.0f, 1.0f, 1.0f, 1.0f);

      }

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

    public void onDrawFrame(GL10 glUnused) 

      {

      mScreen.render( System.currentTimeMillis() );

      }

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

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

      {

      final float SCALE = 0.4f;

      mScreenMin = Math.min(width, height);

      float factor = SCALE*mScreenMin;

      mScale.set(factor,factor,factor);

      mScreen.resize(width, height);

      }

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

    public void onSurfaceCreated(GL10 glUnused, EGLConfig config) 

      {

      if( mTexture==null ) mTexture = new DistortedTexture();

      mTexture.setTexture( createTexture() );

      if( mMesh==null ) mMesh = createMesh();

      mScreen.detachAll();

      mScreen.attach(mTexture,mEffects,mMesh);

      DistortedLibrary.setMax(EffectType.VERTEX, 11);

      VertexEffectRotate.enable();

      try

        {

        DistortedLibrary.onCreate(mView.getContext());

        }

      catch(Exception ex)

        {

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

        }

      }

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

    void apply(int number)

      {

      mRotate.setMeshAssociation(0,number);

      mAngle.set(360);

      mAngleDyn.resetToBeginning();

      }

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

    private Bitmap createTexture()

      {

      final int[] FACE_COLORS = new int[] { 0xffff0000, 0xff00ff00 };

      final int FACES=FACE_COLORS.length;

      int SIZE = 200;

      Bitmap result = Bitmap.createBitmap(FACES*SIZE,SIZE, Bitmap.Config.ARGB_8888);

      Canvas canvas = new Canvas(result);

      Paint paint = new Paint();

      paint.setStyle(Paint.Style.FILL);

      for(int i=0; i<FACES; i++)

        {

        paint.setColor(FACE_COLORS[i]);

        canvas.drawRect(i*SIZE,0,(i+1)*SIZE,SIZE,paint);

        }

      return result;

      }

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

    private MeshBase createMesh()

      {

      final int MESHES=2;

      MeshBase[] meshes = new MeshRectangles[MESHES];

      meshes[0] = new MeshRectangles(1,1);

      meshes[0].setEffectAssociation(0,1,0);

      for(int i=1; i<MESHES; i++)

        {

        meshes[i] = meshes[0].copy(true);

        meshes[i].setEffectAssociation(0,1,i);

        }

      Static4D[] lTextureMaps = new Static4D[MESHES];

      Static4D[] rTextureMaps = new Static4D[MESHES];

      for(int i=0; i<MESHES; i++)

        {

        lTextureMaps[i] = new Static4D(0.0f,0.0f,0.5f,1.0f);

        rTextureMaps[i] = new Static4D(0.5f,0.0f,0.5f,1.0f);

        }

      MeshBase[] tmp = new MeshBase[2];

      tmp[0] = new MeshJoined(meshes);

      tmp[0].setTextureMap(lTextureMaps);

      VertexEffectMove   effect0 = new VertexEffectMove  ( new Static3D(0,0,0.5f) );

      VertexEffectRotate effect1 = new VertexEffectRotate( new Static1D(180), new Static3D(1,0,0), new Static3D(0,0,0) );

      effect0.setMeshAssociation(1,0);  // apply only to Components whose andAssoc has the least significant bit set, i.e.

                                        // to both meshes[0] and meshes[1]

      effect1.setMeshAssociation(0,1);  // apply only to Components whose equAssoc is equal to 1, i.e. only to mesh[1]

      tmp[0].apply(effect0);

      tmp[0].apply(effect1);

      tmp[1] = tmp[0].copy(true);

      tmp[1].setTextureMap(rTextureMaps);

      tmp[0].mergeEffComponents();

      tmp[1].mergeEffComponents();

      tmp[0].setEffectAssociation(0,0,0); // set the equAssoc of the 0th (the only) component to 0

      tmp[1].setEffectAssociation(0,0,1); // set the equAssoc of the 0th (the only) component to 1

      MeshBase combined = new MeshJoined(tmp);

      VertexEffectMove moveL = new VertexEffectMove  ( new Static3D(-0.6f,0,0) );

      VertexEffectMove moveR = new VertexEffectMove  ( new Static3D(+0.6f,0,0) );

      moveL.setMeshAssociation(0,0);  // apply only to tmp[0]

      moveR.setMeshAssociation(0,1);  // apply only to tmp[1]

      combined.apply(moveL);

      combined.apply(moveR);

      return combined;

      }

}