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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.app.ActivityManager;
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import android.content.Context;
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import android.content.pm.ConfigurationInfo;
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import android.content.res.Resources;
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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.DistortedLibrary;
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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.Dynamic3D;
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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 org.distorted.library.type.Static5D;
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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, DistortedLibrary.LibraryUser
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{
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private static final float RADIUS_V= 1.0f/ 8;
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private static final float RADIUS_F= 1.0f/15;
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private static final int LEVEL = 40;
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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 static final float SCALE = 1.10f;
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private final GLSurfaceView mView;
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private final Resources mResources;
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private final DistortedTexture mTexture;
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private final DistortedEffects mEffects;
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private final MeshBase mMesh;
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private final DistortedScreen mScreen;
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private final Static1D mStrength, mSwirl;
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private final Static3D mMove, mScaleFactor, mColor,mRegionF,mPinch;
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private final Static4D mRegionV;
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private final float mObjWidth, mObjHeight, mObjDepth;
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private int mScrWidth, mScrHeight;
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private float mLevel;
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Static4D mQuat1, mQuat2;
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int mScreenMin;
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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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mResources = v.getResources();
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mLevel = SCALE;
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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_F,RADIUS_F,RADIUS_F);
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mRegionV = new Static4D(0,0,0,RADIUS_V);
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mMove = new Static3D(0,0,0);
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mScaleFactor= new Static3D(1,1,1);
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mPinch = new Static3D(0.5f,0.0f,0.0f);
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mSwirl = new Static1D(45.0f);
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Static3D center = new Static3D(0,0,0);
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Dynamic3D scale = new Dynamic3D(0,0.5f);
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scale.add(mScaleFactor);
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mMesh = new MeshSphere(LEVEL);
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mTexture = new DistortedTexture();
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mObjWidth = mObjHeight = mObjDepth = 1.0f;
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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 MatrixEffectQuaternion(quatInt2, center) );
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mEffects.apply( new MatrixEffectQuaternion(quatInt1, center) );
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mEffects.apply( new MatrixEffectScale(scale));
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mEffects.apply( new MatrixEffectMove(mMove) );
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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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mScrWidth = width;
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mScrHeight= height;
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mScreenMin= Math.min(width, height);
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adjustFactor();
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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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final float N=2.0f;
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// MAP: 0--> SCALE/N 50-->SCALE 100->SCALE*N
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mLevel = SCALE* (1.0f+ (level>=50 ? N-1 : (N-1)/N) * (level-50)/50.0f);
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adjustFactor();
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void adjustFactor()
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{
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float xW = (float)mScrWidth /mObjWidth;
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float xH = (float)mScrHeight/mObjHeight;
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float factor = xW>xH ? mLevel*xH : mLevel*xW;
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mMove.set( 0, 0, -factor*mObjDepth );
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mScaleFactor.set(factor,factor,factor);
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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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final float CORR = 10.0F;
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Static3D vector;
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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 = (float)(sinLON*cosLAT)/2.0f;
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float y = (float) sinLAT /2.0f;
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float z = (float)(cosLON*cosLAT)/2.0f;
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Static3D center = new Static3D( (x)*mObjWidth, (y)*mObjHeight, (z)*mObjDepth);
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switch(name)
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{
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case DISTORT : vector = new Static3D( x*mObjWidth/CORR, y*mObjHeight/CORR, z*mObjDepth/CORR);
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effect = new VertexEffectDistort( vector, center, mRegionV); break;
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case DEFORM : vector = new Static3D( x*mObjWidth/CORR, y*mObjHeight/CORR, z*mObjDepth/CORR);
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Static1D radius = new Static1D(mObjWidth/2);
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effect = new VertexEffectDeform ( vector, radius, center, mRegionV); break;
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case SINK : effect = new VertexEffectSink (mStrength, center, mRegionV); break;
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case PINCH : float lat = latitude>0 ? (float)(-Math.PI/2 + latitude) : (float)(Math.PI/2 + latitude);
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float lon = longitude;
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float latInDegrees = (float)(lat*180.0f/Math.PI);
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float lonInDegrees = (float)(lon*180.0f/Math.PI);
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mPinch.set1(latInDegrees);
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mPinch.set2(lonInDegrees);
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effect = new VertexEffectPinch (mPinch , center, mRegionV); break;
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case SWIRL : effect = new VertexEffectSwirl (mSwirl , center, mRegionV); break; // SWIRL & WAVE are not really fully
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case WAVE : Static5D wave = new Static5D( RADIUS_V/2, RADIUS_V/2, 0, 90-latitude, 90); // 3D effects. They will not look
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effect = new VertexEffectWave (wave , center, mRegionV); break; // good everywhere on the sphere.
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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 );
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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 ignored) { }
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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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DistortedLibrary.setMax(EffectType.FRAGMENT, 20);
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DistortedLibrary.onSurfaceCreated(this);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public void distortedException(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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public InputStream localFile(int fileID)
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{
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return mResources.openRawResource(fileID);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public void logMessage(String message)
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{
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android.util.Log.e("Earth", message );
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}
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}
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