Distorted Android

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

// Copyright 2016 Leszek Koltunski                                                               //

//                                                                                               //

// the Free Software Foundation, either version 2 of the License, or                             //

// (at your option) any later version.                                                           //

//                                                                                               //

// 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                             //

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.opengl.EGL14;

import android.opengl.EGLSurface;

import android.util.Log;

import android.view.Surface;

import android.view.SurfaceHolder;

import android.view.SurfaceView;

import org.distorted.library.effect.MatrixEffectScale;

import org.distorted.library.effect.VertexEffectDistort;

import org.distorted.library.main.DistortedScreen;

import org.distorted.library.type.Static4D;

import java.io.IOException;

import java.io.InputStream;

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

  private static final String TAG = "RenderThread";

  // Object must be created on render thread to get correct Looper, but is used from

  // UI thread, so we need to declare it volatile to ensure the UI thread sees a fully

  // constructed object.

  private volatile RenderHandler mHandler;

  // Used to wait for the thread to start.

  private volatile SurfaceHolder mSurfaceHolder;  // may be updated by UI thread

  private EglCore eglCore;

  private EGLSurface eglSurface;

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

    mSurfaceHolder = holder;

    mView = view;

    Static3D pRight= new Static3D(176, 111, 0);

    Static4D rRight= new Static4D( 10,  5, 0,25);

    Dynamic3D dRight= new Dynamic3D(1000,0.0f);

    dLeft.add( new Static3D(-20, 20, 0) );

    dRight.add( new Static3D( 20, 10, 0) );

    mEffects.apply( new VertexEffectDistort(dRight, pRight, rRight) );

    mMove = new Static3D(0,0,0);

    mScale= new Static3D(1,1,1);

    mEffects.apply(new MatrixEffectScale(mScale));

  static void setResourcesCreated()

    {

    resourcesCreated = false;

    }

  private static void checkGlError(String op)

    {

      String msg = op + ": glError 0x" + Integer.toHexString(error);

      Log.e(TAG, msg);

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

  public void run()

    {

    Looper.prepare();

    mHandler = new RenderHandler(this);

    eglCore = new EglCore(null, EglCore.FLAG_RECORDABLE | EglCore.FLAG_TRY_GLES3);

    synchronized (mStartLock)

      {

      mReady = true;

      mStartLock.notify();    // signal waitUntilReady()

      }

    Looper.loop();

    Log.d(TAG, "looper quit");

    checkGlError("releaseGl start");

    if (eglSurface != null)

      {

      eglCore.releaseSurface(eglSurface);

      eglSurface = EGL14.EGL_NO_SURFACE;

      }

    checkGlError("releaseGl done");

    eglCore.makeNothingCurrent();

    eglCore.release();

    synchronized (mStartLock)

      {

      mReady = false;

      }

    }

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

    synchronized (mStartLock)

      {

      while (!mReady)

        {

        try

          {

          mStartLock.wait();

          }

      }

    }

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

    {

    Log.d(TAG, "shutdown");

    Looper.myLooper().quit();

    }

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

    return mHandler;

    }

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

    {

    eglSurface = eglCore.createWindowSurface(surface);

    eglCore.makeCurrent(eglSurface);

    }

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

  void surfaceChanged(int width, int height)

    {

    Log.d(TAG, "surfaceChanged " + width + "x" + height);

      {

      int w = (height*bmpWidth)/bmpHeight;

      float factor = (float)height/bmpHeight;

      mScale.set( factor,factor,factor );

    else

      {

      int h = (width*bmpHeight)/bmpWidth;

      float factor = (float)width/bmpWidth;

      mScale.set( factor,factor,factor );

    mScreen.resize(width, height);

    }

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

    resourcesCreated = true;

    Bitmap bmp;

    try

      {

      bmp = BitmapFactory.decodeStream(is);

      }

    finally

      {

      try

        {

        is.close();

        }

      catch(IOException io) {}

      }

    bmpWidth  = bmp.getWidth();

      {

      mMesh = new MeshRectangles(9,9*bmpHeight/bmpWidth);

      mMesh.setStretch(bmpWidth,bmpHeight,0);

      }

      {

    catch(Exception ex)

      {

    }

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

      {

      android.util.Log.e("Thread", "Got here after onPaused- ignoring frame draw call!!");

      return;

      }

    // Then surfaceCreated/changed is not called

    if( !resourcesCreated )

      {

      Log.e("Thread", "resources not created!!");

      createResources();

      }

    }

  }