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/>.                            //

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package org.distorted.examples.inflate;

import javax.microedition.khronos.egl.EGLConfig;

import javax.microedition.khronos.opengles.GL10;

import org.distorted.library.effect.FragmentEffectAlpha;

import org.distorted.library.effect.MatrixEffectQuaternion;

import org.distorted.library.effect.MatrixEffectScale;

import org.distorted.library.effect.VertexEffectScale;

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.Static1D;

import org.distorted.library.type.Static4D;

import org.distorted.library.type.Static3D;

import android.opengl.GLSurfaceView;

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class InflateRenderer implements GLSurfaceView.Renderer, DistortedLibrary.ExceptionListener

{

    private static final float FOV = 30.0f;

    private static final float NEAR = 0.1f;

    private GLSurfaceView mView;

    private DistortedTexture mTexture;

    private DistortedEffects mEffects;

    private MeshBase mMesh;

    private DistortedScreen mScreen;

    private float mObjWidth, mObjHeight, mObjDepth;

    private Static3D mScale;

    private Static1D mAlpha;

    Static4D mQuat1, mQuat2;

    int mScreenMin;

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

    InflateRenderer(GLSurfaceView v)

      {

      mView = v;

      mAlpha = new Static1D(1.0f);

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

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

      InflateActivity2 act = (InflateActivity2)v.getContext();

      mTexture = act.getTexture();

      mMesh    = act.getMesh();

      mObjWidth = act.getCols();

      mObjHeight= act.getRows();

      mObjDepth = act.getSlic();

      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);

      mEffects = new DistortedEffects();

      mEffects.apply( new VertexEffectScale(new Static3D(mObjWidth,mObjHeight,mObjDepth) ) );

      mEffects.apply( new MatrixEffectScale(mScale));

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

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

      mEffects.apply( new FragmentEffectAlpha(mAlpha));

      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 = 0.75f;

      mScreenMin = Math.min(width, height);

      float factor = ( width*mObjHeight > height*mObjWidth ) ? (SCALE*height)/mObjHeight :  (SCALE*width)/mObjWidth;

      mScale.set(factor,factor,factor);

      mScreen.resize(width, height);

      }

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    void setRenderModeToOIT(boolean oit)

      {

      mScreen.setOrderIndependentTransparency(oit);

      }

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

    void setTransparency(int level)

      {

      mAlpha.set((float)level/100.0f);

      }

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

    float setLevel(int level)

      {

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

      mMesh.setInflate(inflateLevel);

      return inflateLevel;

      }

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

    public void onSurfaceCreated(GL10 glUnused, EGLConfig config) 

      {

      InflateActivity2 act = (InflateActivity2)mView.getContext();

      mTexture.setTexture( act.getBitmap() );

      mScreen.detachAll();

      mScreen.attach(mTexture,mEffects,mMesh);

      VertexEffectScale.enable();

      FragmentEffectAlpha.enable();

      DistortedLibrary.onCreate(act,this);

      }

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

    public void distortedException(Exception ex)

      {

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

      }

}