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examples / src / main / java / org / distorted / examples / check / CheckRenderer.java @ 855ba24e

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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.check;
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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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import org.distorted.examples.R;
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import org.distorted.library.Distorted;
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import org.distorted.library.DistortedEffects;
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import org.distorted.library.DistortedScreen;
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import org.distorted.library.DistortedTexture;
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import org.distorted.library.EffectNames;
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import org.distorted.library.MeshFlat;
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import org.distorted.library.EffectTypes;
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import org.distorted.library.type.Dynamic3D;
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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.Dynamic1D;
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import android.app.AlertDialog;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.opengl.GLES30;
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import android.opengl.GLSurfaceView;
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import android.util.Log;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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class CheckRenderer implements GLSurfaceView.Renderer 
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{
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    private static String compilationResult;
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    private static String compilationTitle;
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    private GLSurfaceView mView;
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    private DistortedEffects mEffects;
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    private DistortedScreen mScreen;
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    private int bmpHeight, bmpWidth;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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    CheckRenderer(GLSurfaceView view)
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      { 
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      mView = view;
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      mEffects = new DistortedEffects();
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      CheckActivity act = (CheckActivity)mView.getContext();
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      DistortedEffects.setMaxVertex(act.getMaxV());
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      DistortedEffects.setMaxFragment(act.getMaxF());
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      mScreen = new DistortedScreen();
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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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      mEffects.abortEffects(EffectTypes.MATRIX);
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      if( (float)bmpHeight/bmpWidth > (float)height/width )
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        {
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        int w = (height*bmpWidth)/bmpHeight;
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        float factor = (float)height/bmpHeight;
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        mEffects.move( new Static3D((width-w)/2,0,0) );
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        mEffects.scale(factor);
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        }
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      else
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        {
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        int h = (width*bmpHeight)/bmpWidth;
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        float factor = (float)width/bmpWidth;
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        mEffects.move( new Static3D(0,(height-h)/2,0) );
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        mEffects.scale(factor);
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        }
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      mScreen.resize(width, height);
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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.success);
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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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      bmpHeight = bitmap.getHeight();
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      bmpWidth  = bitmap.getWidth();
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      DistortedTexture texture = new DistortedTexture(bmpWidth,bmpHeight);
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      texture.setTexture(bitmap);
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      MeshFlat mesh = new MeshFlat(30,30*bmpHeight/bmpWidth);
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      mScreen.detachAll();
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      mScreen.attach(texture,mEffects,mesh);
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      // Try adding 2 Vertex Effects to the Bitmap.
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      // This will fail if we have set maxVertexEffects to something < 2.
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      //
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      // Even if adding some of the Effects fails, the App will still start - you just won't see
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      // the effects that failed to add.
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      Dynamic3D dSwirl = new Dynamic3D(2000,0.0f);
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      dSwirl.add(new Static3D(        0, bmpHeight/2, 0));
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      dSwirl.add(new Static3D( bmpWidth, bmpHeight/2, 0));
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      long swirlEffectID = mEffects.swirl( new Static1D(30), dSwirl, new Static4D( 0,0,40,40) );
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      if( swirlEffectID<0 )
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        {
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        Log.e("Check", "Failed to add Swirl effect!");
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        }
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      Dynamic3D dDeform = new Dynamic3D(2000,0.0f);
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      dDeform.add(new Static3D( 0,         0,0));
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      dDeform.add(new Static3D( 0,-bmpHeight,0));
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      long deformEffectID = mEffects.deform(dDeform, new Static3D(bmpWidth/2,0,0) );
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      if( deformEffectID<0 )
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        {
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        Log.e("Check", "Failed to add Deform effect!");
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        }
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      // Now try adding 1 Fragment Effect. Likewise, will fail if maxFragmentEffects is <1.
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      Static3D color = new Static3D(1,0,0);
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      Dynamic1D inter = new Dynamic1D(2000,0.0f);
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      inter.add(new Static1D(0));
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      inter.add(new Static1D(1));
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      long chromaEffectID = mEffects.chroma(inter, color);
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      if( chromaEffectID<0 )
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        {
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        Log.e("Check", "Failed to add Chroma effect!");
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        }
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      DistortedEffects.enableEffect(EffectNames.SWIRL);
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      DistortedEffects.enableEffect(EffectNames.DEFORM);
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      DistortedEffects.enableEffect(EffectNames.CHROMA);
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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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        // We have failed to compile or link shaders - probably too many effects.
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        // (each effect adds a certain number of Uniforms to the shader and there
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        // can only be a limited number of those )
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        compilationTitle = ex.getClass().getSimpleName();
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        compilationResult= ex.getMessage();
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        String ver;
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        ver = GLES30.glGetString(GLES30.GL_SHADING_LANGUAGE_VERSION);   
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        compilationResult += "\n\nGLSL version: "+(ver==null ? "null" : ver);
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        ver = GLES30.glGetString(GLES30.GL_VERSION);  
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        compilationResult += "\nGL version: "+(ver==null ? "null" : ver);
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        ver = GLES30.glGetString(GLES30.GL_VENDOR);   
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        compilationResult += "\nGL vendor: "+(ver==null ? "null" : ver);
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        ver = GLES30.glGetString(GLES30.GL_RENDERER);    
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        compilationResult += "\nGL renderer: "+(ver==null ? "null" : ver);
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        CheckActivity act = (CheckActivity)mView.getContext();
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        act.runOnUiThread(new Runnable() 
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          {
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          public void run() 
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            {
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            Context context = mView.getContext();
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            AlertDialog.Builder builder = new AlertDialog.Builder(context);
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            builder.setTitle(compilationTitle);
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            builder.setMessage(compilationResult);
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            builder.setCancelable(true);
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            builder.setOnCancelListener(new DialogInterface.OnCancelListener() 
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              {
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              @Override
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              public void onCancel(DialogInterface dialog) 
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                {
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                ((CheckActivity)mView.getContext()).finish();
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                }
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              });
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            AlertDialog alert = builder.create();
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            alert.show();
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            }
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          });
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        }
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      }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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}