Magic Cube

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// Copyright 2019 Leszek Koltunski                                                               //

//                                                                                               //

// This file is part of Magic Cube.                                                              //

//                                                                                               //

// Magic Cube 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.                                                           //

//                                                                                               //

// Magic Cube 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 Magic Cube.  If not, see <http://www.gnu.org/licenses/>.                           //

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

package org.distorted.main;

import android.app.ActivityManager;

import android.content.Context;

import android.content.pm.ConfigurationInfo;

import android.opengl.GLES30;

import android.opengl.GLSurfaceView;

import org.distorted.effects.BaseEffect;

import org.distorted.library.effect.EffectType;

import org.distorted.library.effect.VertexEffectQuaternion;

import org.distorted.library.effect.VertexEffectRotate;

import org.distorted.library.main.DistortedLibrary;

import org.distorted.library.main.DistortedScreen;

import org.distorted.library.mesh.MeshBase;

import javax.microedition.khronos.egl.EGLConfig;

import javax.microedition.khronos.opengles.GL10;

import com.google.firebase.crashlytics.FirebaseCrashlytics;

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

public class RubikRenderer implements GLSurfaceView.Renderer, DistortedLibrary.ExceptionListener

{

   public static final float BRIGHTNESS = 0.30f;

   private final RubikSurfaceView mView;

   private final DistortedScreen mScreen;

   private final Fps mFPS;

   private boolean mErrorShown;

   private static boolean mSupportsGigaminx;

   private static class Fps

     {

     private static final int NUM_FRAMES  = 100;

     private long lastTime=0;

     private final long[] durations;

     private int currDuration;

     private float currFPS;

     Fps()

       {

       durations = new long[NUM_FRAMES+1];

       currDuration = 0;

       for (int i=0; i<NUM_FRAMES+1; i++) durations[i] = 16;

       durations[NUM_FRAMES] = NUM_FRAMES * 16;

       }

     void onRender(long time)

       {

       if( lastTime==0 ) lastTime = time;

       currDuration++;

       if (currDuration >= NUM_FRAMES) currDuration = 0;

       durations[NUM_FRAMES] += ((time - lastTime) - durations[currDuration]);

       durations[currDuration] = time - lastTime;

       currFPS = ((int)(10000.0f*NUM_FRAMES/durations[NUM_FRAMES]))/10.0f;

       lastTime = time;

       }

     float getFPS()

       {

       return currFPS;

       }

     }

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

   RubikRenderer(RubikSurfaceView v)

     {

     mErrorShown = false;

     mView = v;

     mFPS = new Fps();

     mScreen = new DistortedScreen();

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

     }

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

// various things are done here delayed, 'after the next render' as not to be done mid-render and

// cause artifacts.

   @Override

   public void onDrawFrame(GL10 glUnused)

     {

     long time = System.currentTimeMillis();

     mFPS.onRender(time);

     mView.getPreRender().preRender();

     mScreen.render(time);

     }

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

   @Override

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

      {

      mScreen.resize(width,height);

      mView.setScreenSize(width,height);

      mView.getPreRender().setScreenSize(width);

      }

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

   @Override

   public void onSurfaceCreated(GL10 glUnused, EGLConfig config)

      {

      DistortedLibrary.setMax(EffectType.VERTEX,61);    // 60 Minx quaternions + rotate

      VertexEffectRotate.enable();

      VertexEffectQuaternion.enable();

      BaseEffect.Type.enableEffects();

      assignMaxComponents();

      DistortedLibrary.onSurfaceCreated(mView.getContext(),this,1);

      }

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

   public void distortedException(Exception ex)

     {

     String message = ex.getMessage();

     String shading = GLES30.glGetString(GLES30.GL_SHADING_LANGUAGE_VERSION);

     String version = GLES30.glGetString(GLES30.GL_VERSION);

     String vendor  = GLES30.glGetString(GLES30.GL_VENDOR);

     String renderer= GLES30.glGetString(GLES30.GL_RENDERER);

     if( message==null ) message = "exception NULL";

     if( BuildConfig.DEBUG )

       {

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

       android.util.Log.e("DISTORTED", "GLSL Version "+shading);

       android.util.Log.e("DISTORTED", "GL Version "  +version);

       android.util.Log.e("DISTORTED", "GL Vendor "   +vendor);

       android.util.Log.e("DISTORTED", "GL Renderer " +renderer);

       }

     else

       {

       FirebaseCrashlytics crashlytics = FirebaseCrashlytics.getInstance();

       crashlytics.setCustomKey("DistortedError", message );

       crashlytics.setCustomKey("GLSL Version"  , shading );

       crashlytics.setCustomKey("GLversion"     , version );

       crashlytics.setCustomKey("GL Vendor "    , vendor  );

       crashlytics.setCustomKey("GLSLrenderer"  , renderer);

       crashlytics.recordException(ex);

       }

     int glsl = DistortedLibrary.getGLSL();

     if( glsl< 300 && !mErrorShown )

       {

       mErrorShown = true;

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

       act.OpenGLError();

       }

     }

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

   private void assignMaxComponents()

     {

     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;

     MeshBase.setMaxEffComponents(242);   // the largest object, Gigaminx, has 242 components

     mSupportsGigaminx = true;

     if( major==3 && minor==0 )

       {

       String vendor  = GLES30.glGetString(GLES30.GL_VENDOR);

       String version = GLES30.glGetString(GLES30.GL_VERSION);

       if( vendor.contains("Qualcomm") && version.contains("V@331") )

         {

         // on driver version 331,  do not support Gigaminx.

         // Then Cube5 is the largest with 98 components.

         MeshBase.setMaxEffComponents(98);

         mSupportsGigaminx = false;

         }

       }

     }

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

   public static boolean supportsGigaminx()

     {

     return mSupportsGigaminx;

     }

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

   float getFPS()

     {

     return mFPS.getFPS();

     }

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

   DistortedScreen getScreen()

     {

     return mScreen;

     }

}