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/>.                            //

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

package org.distorted.examples.check;

import java.io.IOException;

import java.io.InputStream;

import javax.microedition.khronos.egl.EGLConfig;

import javax.microedition.khronos.opengles.GL10;

import org.distorted.examples.R;

import org.distorted.library.Distorted;

import org.distorted.library.DistortedBitmap;

import org.distorted.library.EffectTypes;

import org.distorted.library.type.Static1D;

import org.distorted.library.type.Static2D;

import org.distorted.library.type.Static3D;

import org.distorted.library.type.Static4D;

import org.distorted.library.type.Dynamic1D;

import org.distorted.library.type.Dynamic2D;

import android.app.AlertDialog;

import android.content.Context;

import android.content.DialogInterface;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.opengl.GLES20;

import android.opengl.GLSurfaceView;

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

class CheckRenderer implements GLSurfaceView.Renderer 

{

    private GLSurfaceView mView;

    private DistortedBitmap mSuccess;

    private int bmpHeight, bmpWidth;

    public static String compilationResult;

    public static String compilationTitle;

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

    public CheckRenderer(GLSurfaceView view) 

      { 

      mView = view;

      Distorted.setMaxVertex(CheckActivity.getMaxV());

      Distorted.setMaxFragment(CheckActivity.getMaxF());

      }

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

    public void onDrawFrame(GL10 glUnused) 

      {

      GLES20.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);

      GLES20.glClear( GLES20.GL_DEPTH_BUFFER_BIT | GLES20.GL_COLOR_BUFFER_BIT);

      mSuccess.draw(System.currentTimeMillis());

      }

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

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

      { 

      mSuccess.abortEffects(EffectTypes.MATRIX);

      if( bmpHeight/bmpWidth > height/width )

        {

        int w = (height*bmpWidth)/bmpHeight;

        float factor = (float)height/bmpHeight;

        mSuccess.move( new Static3D((width-w)/2,0,0) );

        mSuccess.scale( new Static3D(factor,factor,factor) );

        }

      else

        {

        int h = (width*bmpHeight)/bmpWidth;

        float factor = (float)width/bmpWidth;

        mSuccess.move( new Static3D(0,(height-h)/2,0) );

        mSuccess.scale( new Static3D(factor,factor,factor) );

        }

      Distorted.onSurfaceChanged(width, height);

      }

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

    public void onSurfaceCreated(GL10 glUnused, EGLConfig config) 

      {  

      InputStream is = mView.getContext().getResources().openRawResource(R.raw.success);

      Bitmap bitmap;

      try

        {

        bitmap = BitmapFactory.decodeStream(is);

        } 

      finally 

        {

        try 

          {

          is.close();

          } 

        catch(IOException e) { }

        }

      mSuccess = new DistortedBitmap(bitmap, 30);

      bmpHeight = bitmap.getHeight();

      bmpWidth  = bitmap.getWidth();

      // Try adding 2 Vertex Effects to the Bitmap.

      // This will fail if we have set maxVertexEffects to something < 2.

      //

      // Even if adding some of the Effects fails, the App will still start - you just won't see

      // the effects that failed to add.

      Static2D pDown   = new Static2D(bmpWidth/2,   0);

      Static3D vDown   = new Static3D( 0,-bmpHeight,0);

      Static4D mRegion = new Static4D( 0, 0, 40 ,40 );

      Dynamic2D mPoint = new Dynamic2D();

      mPoint.setCount(0.0f);

      mPoint.setDuration(2000);

      mPoint.add(new Static2D(        0, bmpHeight/2));

      mPoint.add(new Static2D( bmpWidth, bmpHeight/2));

      mSuccess.swirl( 30, mRegion, mPoint );

      mSuccess.deform(vDown, pDown, 2000, 0.0f);

      // Now try adding 1 Fragment Effect. Likewise, will fail if maxFragmentEffects is <1.

      Static3D color = new Static3D(1,0,0);

      Dynamic1D inter = new Dynamic1D();

      inter.setCount(0.0f);

      inter.setDuration(2000);

      inter.add(new Static1D(0));

      inter.add(new Static1D(1));

      mSuccess.chroma(inter, color, null, new Static2D(0,0) );

      try

        {

        Distorted.onSurfaceCreated(mView.getContext());

        }

      catch(Exception ex)

        {

        // We have failed to compile or link shaders - probably too many effects.

        // (each effect adds a certain number of Uniforms to the shader and there

        // can only be a limited number of those )

        compilationTitle = ex.getClass().getSimpleName();

        compilationResult= ex.getMessage();

        String ver;

        ver = GLES20.glGetString(GLES20.GL_SHADING_LANGUAGE_VERSION);   

        compilationResult += "\n\nGLSL version: "+(ver==null ? "null" : ver);

        ver = GLES20.glGetString(GLES20.GL_VERSION);  

        compilationResult += "\nGL version: "+(ver==null ? "null" : ver);

        ver = GLES20.glGetString(GLES20.GL_VENDOR);   

        compilationResult += "\nGL vendor: "+(ver==null ? "null" : ver);

        ver = GLES20.glGetString(GLES20.GL_RENDERER);    

        compilationResult += "\nGL renderer: "+(ver==null ? "null" : ver);

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

        act.runOnUiThread(new Runnable() 

          {

          public void run() 

            {

            Context context = mView.getContext();

            AlertDialog.Builder builder = new AlertDialog.Builder(context);

            builder.setTitle(compilationTitle);

            builder.setMessage(compilationResult);

            builder.setCancelable(true);

            builder.setOnCancelListener(new DialogInterface.OnCancelListener() 

              {

              @Override

              public void onCancel(DialogInterface dialog) 

                {

                ((CheckActivity)mView.getContext()).finish();

                }

              });

            AlertDialog alert = builder.create();

            alert.show();

            }

          });

        }

      }

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

}