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examples / src / main / java / org / distorted / examples / earth / EarthRenderer.java @ b88ec561

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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2016 Leszek Koltunski                                                               //
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//                                                                                               //
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// This file is part of Distorted.                                                               //
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//                                                                                               //
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// Distorted is free software: you can redistribute it and/or modify                             //
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// it under the terms of the GNU General Public License as published by                          //
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// the Free Software Foundation, either version 2 of the License, or                             //
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// (at your option) any later version.                                                           //
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//                                                                                               //
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// Distorted is distributed in the hope that it will be useful,                                  //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 //
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// GNU General Public License for more details.                                                  //
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//                                                                                               //
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// You should have received a copy of the GNU General Public License                             //
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// along with Distorted.  If not, see <http://www.gnu.org/licenses/>.                            //
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///////////////////////////////////////////////////////////////////////////////////////////////////
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package org.distorted.examples.earth;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.opengl.GLSurfaceView;
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import org.distorted.examples.R;
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import org.distorted.library.effect.Effect;
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import org.distorted.library.effect.EffectName;
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import org.distorted.library.effect.EffectType;
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import org.distorted.library.effect.FragmentEffectAlpha;
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import org.distorted.library.effect.FragmentEffectBrightness;
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import org.distorted.library.effect.FragmentEffectChroma;
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import org.distorted.library.effect.FragmentEffectContrast;
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import org.distorted.library.effect.FragmentEffectSaturation;
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import org.distorted.library.effect.MatrixEffectMove;
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import org.distorted.library.effect.MatrixEffectQuaternion;
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import org.distorted.library.effect.MatrixEffectScale;
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import org.distorted.library.effect.VertexEffectDeform;
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import org.distorted.library.effect.VertexEffectDistort;
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import org.distorted.library.effect.VertexEffectPinch;
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import org.distorted.library.effect.VertexEffectSink;
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import org.distorted.library.effect.VertexEffectSwirl;
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import org.distorted.library.effect.VertexEffectWave;
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import org.distorted.library.main.Distorted;
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import org.distorted.library.main.DistortedEffects;
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import org.distorted.library.main.DistortedScreen;
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import org.distorted.library.main.DistortedTexture;
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import org.distorted.library.mesh.MeshBase;
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import org.distorted.library.mesh.MeshSphere;
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import org.distorted.library.type.DynamicQuat;
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import org.distorted.library.type.Static1D;
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import org.distorted.library.type.Static3D;
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import org.distorted.library.type.Static4D;
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import java.io.IOException;
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import java.io.InputStream;
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import javax.microedition.khronos.egl.EGLConfig;
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import javax.microedition.khronos.opengles.GL10;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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class EarthRenderer implements GLSurfaceView.Renderer
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{
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    private static final float D      = (float)Math.sqrt(2.0)/2.0f;
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    private static final int   SIZE   =   500;
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    private static final int   RADIUS =   (int)(SIZE*D);
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    private static final int   LEVEL  =    32;
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    private static final float FOV    = 30.0f;
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    private static final float NEAR   =  0.1f;
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    private GLSurfaceView mView;
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    private DistortedTexture mTexture;
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    private DistortedEffects mEffects;
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    private MeshBase mMesh;
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    private DistortedScreen mScreen;
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    private int mObjWidth, mObjHeight, mObjDepth;
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    private Static3D mMove, mScale, mCenter;
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    Static4D mQuat1, mQuat2;
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    int mScreenMin;
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    private Static3D mColor;
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    private Static3D mRegionF;
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    private Static1D mStrength;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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    EarthRenderer(GLSurfaceView v)
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      {
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      mView = v;
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      mStrength = new Static1D(0.5f);
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      mColor    = new Static3D(255,0,0);
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      mRegionF  = new Static3D(RADIUS,RADIUS,RADIUS);
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      mMove     = new Static3D(0,0,0);
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      mScale    = new Static3D(1,1,1);
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      mCenter   = new Static3D(0,0,0);
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      mMesh     = new MeshSphere(LEVEL);
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      mTexture  = new DistortedTexture(SIZE,SIZE);
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      mObjWidth = mTexture.getWidth();
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      mObjHeight= mTexture.getHeight();
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      mObjDepth = mTexture.getDepth(mMesh);
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      mQuat1 = new Static4D(0,0,0,1);  // unity
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      mQuat2 = new Static4D(0,0,0,1);  // quaternions
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      DynamicQuat quatInt1 = new DynamicQuat(0,0.5f);
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      DynamicQuat quatInt2 = new DynamicQuat(0,0.5f);
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      quatInt1.add(mQuat1);
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      quatInt2.add(mQuat2);
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      mEffects = new DistortedEffects();
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      mEffects.apply( new MatrixEffectMove(mMove) );
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      mEffects.apply( new MatrixEffectScale(mScale));
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      mEffects.apply( new MatrixEffectQuaternion(quatInt1, mCenter) );
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      mEffects.apply( new MatrixEffectQuaternion(quatInt2, mCenter) );
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      Static3D center = new Static3D(0.5f*mObjWidth,0.5f*mObjHeight,0.5f*mObjDepth);
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      mEffects.apply( new FragmentEffectChroma(mStrength, mColor,center, mRegionF, false) );
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      mScreen = new DistortedScreen();
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      mScreen.setProjection(FOV, NEAR);
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      }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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    public void onDrawFrame(GL10 glUnused) 
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      {
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      mScreen.render( System.currentTimeMillis() );
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      }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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    public void onSurfaceChanged(GL10 glUnused, int width, int height) 
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      {
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      final float SCALE = 0.75f;
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      mScreenMin = width<height ? width:height;
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      float factor = ( width*mObjHeight > height*mObjWidth ) ? (SCALE*height)/mObjHeight :  (SCALE*width)/mObjWidth;
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      mMove.set( (width-factor*mObjWidth)/2 , (height-factor*mObjHeight)/2 , 0);
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      mScale.set(factor,factor,factor);
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      mCenter.set( (float)mObjWidth/2, (float)mObjHeight/2, (float)mObjDepth/2 );
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      mScreen.resize(width, height);
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      }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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    void setLevel(int level)
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      {
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      float inflateLevel = (level-50)/50.0f;
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      mMesh.setInflate(inflateLevel);
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      }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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    void addNewPoint(float longitude, float latitude, EffectName name)
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      {
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      Effect effect =null;
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      double sinLON = Math.sin(longitude);
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      double cosLON = Math.cos(longitude);
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      double sinLAT = Math.sin(latitude);
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      double cosLAT = Math.cos(latitude);
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      float x = 0.7071f*(float)(sinLON*cosLAT);
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      float y = 0.7071f*(float)(cosLON*cosLAT);
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      float z = 0.7071f*(float)        sinLAT ;
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      Static3D center = new Static3D(x*mObjWidth,y*mObjHeight,z*mObjDepth);
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      android.util.Log.e("earth", "center "+(x*mObjWidth)+" "+(y*mObjHeight)+" "+(z*mObjDepth));
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      android.util.Log.e("earth", "longitude: "+longitude+" latitude:"+latitude);
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      switch(name)
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        {
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        /*
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        case DISTORT          : effect = new VertexEffectDistort(mDyn3, center, mRegionV); break;
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        case DEFORM           : effect = new VertexEffectDeform (mDyn3, center, mRegionV); break;
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        case SINK             : effect = new VertexEffectSink   (mDyn1, center, mRegionV); break;
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        case PINCH            : effect = new VertexEffectPinch  (mDyn2, center, mRegionV); break;
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        case SWIRL            : effect = new VertexEffectSwirl  (mDyn1, center, mRegionV); break;
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        case WAVE             : effect = new VertexEffectWave   (mDyn5, center, mRegionV); break;
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        */
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        case ALPHA            : effect = new FragmentEffectAlpha     (mStrength,        center, mRegionF, false); break;
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        case SMOOTH_ALPHA     : effect = new FragmentEffectAlpha     (mStrength,        center, mRegionF, true ); break;
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        case CHROMA           : effect = new FragmentEffectChroma    (mStrength, mColor,center, mRegionF, false); break;
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        case SMOOTH_CHROMA    : effect = new FragmentEffectChroma    (mStrength, mColor,center, mRegionF, true ); break;
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        case BRIGHTNESS       : effect = new FragmentEffectBrightness(mStrength,        center, mRegionF, false); break;
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        case SMOOTH_BRIGHTNESS: effect = new FragmentEffectBrightness(mStrength,        center, mRegionF, true ); break;
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        case SATURATION       : effect = new FragmentEffectSaturation(mStrength,        center, mRegionF, false); break;
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        case SMOOTH_SATURATION: effect = new FragmentEffectSaturation(mStrength,        center, mRegionF, true ); break;
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        case CONTRAST         : effect = new FragmentEffectContrast  (mStrength,        center, mRegionF, false); break;
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        case SMOOTH_CONTRAST  : effect = new FragmentEffectContrast  (mStrength,        center, mRegionF, true ); break;
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        default               : android.util.Log.e("EarthRenderer", "unexpected effect: "+name.toString() );
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        }
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      if( effect!=null )
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        {
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        mEffects.apply(effect);
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        }
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      }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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    void removeAll()
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      {
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      mEffects.abortByType(EffectType.VERTEX);
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      mEffects.abortByType(EffectType.FRAGMENT);
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      }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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    public void onSurfaceCreated(GL10 glUnused, EGLConfig config) 
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      {
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      InputStream is = mView.getContext().getResources().openRawResource(R.raw.world);
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      Bitmap bitmap;
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      try
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        {
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        bitmap = BitmapFactory.decodeStream(is);
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        }
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      finally
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        {
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        try
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          {
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          is.close();
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          }
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        catch(IOException e) { }
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        }
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      mTexture.setTexture(bitmap);
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      mScreen.detachAll();
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      mScreen.attach(mTexture,mEffects,mMesh);
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      Effect.enableEffects(EffectType.FRAGMENT);
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      Effect.enableEffects(EffectType.VERTEX);
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      try
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        {
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        Distorted.onCreate(mView.getContext());
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        }
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      catch(Exception ex)
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        {
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        android.util.Log.e("Earth", ex.getMessage() );
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        }
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      }
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}