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.predeform;

import android.app.ActivityManager;

import android.content.Context;

import android.content.pm.ConfigurationInfo;

import android.content.res.Resources;

import android.opengl.GLSurfaceView;

import org.distorted.library.effect.EffectType;

import org.distorted.library.effect.MatrixEffectMove;

import org.distorted.library.effect.MatrixEffectQuaternion;

import org.distorted.library.effect.MatrixEffectScale;

import org.distorted.library.effect.VertexEffect;

import org.distorted.library.effect.Effect;

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.type.DynamicQuat;

import org.distorted.library.type.Static3D;

import org.distorted.library.type.Static4D;

import java.io.InputStream;

import java.util.ArrayList;

import javax.microedition.khronos.egl.EGLConfig;

import javax.microedition.khronos.opengles.GL10;

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

class PredeformRenderer implements GLSurfaceView.Renderer, DistortedLibrary.LibraryUser

{

    private static final float FOV = 30.0f;

    private static final float NEAR = 0.1f;

    private final GLSurfaceView mView;

    private final Resources mResources;

    private final DistortedTexture mTexture;

    private final DistortedEffects mEffects1, mEffects2;

    private final MeshBase mMesh1, mMesh2;

    private final DistortedScreen mScreen;

    private final Static3D mScale, mMove1, mMove2;

    Static4D mQuat1, mQuat2;

    int mScreenMin;

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

    PredeformRenderer(GLSurfaceView v)

      {

      mView = v;

      mResources = v.getResources();

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

      mMove1= new Static3D(0,0,0);

      mMove2= new Static3D(0,0,0);

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

      PredeformActivity2 act = (PredeformActivity2)v.getContext();

      mTexture = act.getTexture();

      mMesh1   = act.getMesh();

      mMesh2   = mMesh1.copy(true);

      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);

      ArrayList<VertexEffect> effectList = PredeformEffectList.getEffectList();

      int numEffects = effectList.size();

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

        {

        mMesh2.apply(effectList.get(i));

        }

      mEffects1 = new DistortedEffects();

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

        {

        mEffects1.apply(effectList.get(i));

        }

      mEffects1.apply( new MatrixEffectScale(mScale));

      mEffects1.apply( new MatrixEffectQuaternion(quatInt2, center) );

      mEffects1.apply( new MatrixEffectQuaternion(quatInt1, center) );

      mEffects1.apply( new MatrixEffectMove(mMove1));

      mEffects2 = new DistortedEffects();

      mEffects2.apply( new MatrixEffectScale(mScale));

      mEffects2.apply( new MatrixEffectQuaternion(quatInt2, center) );

      mEffects2.apply( new MatrixEffectQuaternion(quatInt1, center) );

      mEffects2.apply( new MatrixEffectMove(mMove2));

      mScreen = new DistortedScreen();

      mScreen.glClearColor(1.0f,1.0f,1.0f,0.0f);

      mScreen.setProjection(FOV, NEAR);

      }

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

    public void onDrawFrame(GL10 glUnused) 

      {

      mScreen.render( System.currentTimeMillis() );

      }

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

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

      {

      final float SCALE = 0.6f;

      if( width<height )

        {

        float factor = SCALE*(Math.min(width, 0.5f*height));

        mScale.set(factor,factor,factor);

        mMove1.set(0, height*0.25f,0);

        mMove2.set(0,-height*0.25f,0);

        }

      else

        {

        float factor = SCALE*(Math.min( 0.5f*width, height));

        mScale.set(factor,factor,factor);

        mMove1.set( width*0.25f,0,0);

        mMove2.set(-width*0.25f,0,0);

        }

      mScreenMin = Math.min(width, height);

      mScreen.resize(width, height);

      }

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

    void showNormal(boolean show)

      {

      mMesh1.setShowNormals(show);

      mMesh2.setShowNormals(show);

      }

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

    float setLevel(int level)

      {

      float inflateLevel = (level-50)/50.0f;

      mMesh1.setInflate(inflateLevel);

      mMesh2.setInflate(inflateLevel);

      return inflateLevel;

      }

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

    public void onSurfaceCreated(GL10 glUnused, EGLConfig config) 

      {

      PredeformActivity2 act = (PredeformActivity2)mView.getContext();

      mTexture.setTexture( act.getBitmap() );

      mScreen.detachAll();

      mScreen.attach(mTexture,mEffects1,mMesh1);

      mScreen.attach(mTexture,mEffects2,mMesh2);

      Effect.enableEffects(EffectType.VERTEX);

      DistortedLibrary.needTransformFeedback();

      DistortedLibrary.onSurfaceCreated(this);

      }

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

    public void distortedException(Exception ex)

      {

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

      }

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

    public int openGlVersion()

      {

      Context context = mView.getContext();

      final ActivityManager activityManager     = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);

      final ConfigurationInfo configurationInfo = activityManager.getDeviceConfigurationInfo();

      int glESversion = configurationInfo.reqGlEsVersion;

      int major = glESversion >> 16;

      int minor = glESversion & 0xff;

      return 100*major + 10*minor;

      }

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

    public InputStream localFile(int fileID)

      {

      return mResources.openRawResource(fileID);

      }

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

    public void logMessage(String message)

      {

      android.util.Log.e("Predeform", message );

      }

}