Distorted Android

// 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                          //

// Distorted is distributed in the hope that it will be useful,                                  //

// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //

// along with Distorted.  If not, see <http://www.gnu.org/licenses/>.                            //

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

package org.distorted.examples.generic;

import android.app.ActivityManager;

import android.graphics.Bitmap;

import org.distorted.library.effect.Effect;

import org.distorted.library.effect.MatrixEffectMove;

import org.distorted.library.effect.VertexEffectScale;

import org.distorted.library.main.DistortedLibrary;

import org.distorted.library.main.DistortedEffects;

import org.distorted.library.mesh.MeshBase;

import org.distorted.library.mesh.MeshQuad;

import org.distorted.library.mesh.MeshSphere;

import org.distorted.library.type.Static3D;

class GenericRenderer implements GLSurfaceView.Renderer, DistortedLibrary.LibraryUser

{

    private static final float FOV = 30.0f;

    private static final float NEAR = 0.1f;

    private final GLSurfaceView mView;

    private final Resources mResources;

    private final DistortedTexture mObjectTexture, mBackgroundTexture, mCenterTexture, mRegionTexture;

    private boolean mShowingCenter=false;

    private float mFactorObj;

    private int mWidth;

    Static4D mQuat1, mQuat2;

    int mScreenMin;

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

    GenericRenderer(GLSurfaceView v)

      {

      mResources = v.getResources();

      GenericActivity2 act = (GenericActivity2)v.getContext();

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

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

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

      mObjectTexture     = act.getTexture();

      mBackgroundTexture = new DistortedTexture();

      mFactorObj = 1.0f;

      mObjectEffects   = act.getEffects();

      MeshBase mesh   = act.getMesh();

      MeshQuad quad   = new MeshQuad();

      mFactor = mesh instanceof MeshSphere ? 1.2f : 0.7f;

      mObjWidth = act.getWidth();

      mQuat1 = new Static4D(0,0,0,1);  // unity

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

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

      mCenterNode = new DistortedNode(mCenterTexture, centerEffects, quad);

      mScreen = new DistortedScreen();

      mScreen.setProjection(FOV, NEAR);

      mScreen.attach(mBackgroundTexture, backgroundEffects, quad );

      mScreen.attach(mObjectTexture    , mObjectEffects   , mesh );

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

      MatrixEffectQuaternion quat1cen = new MatrixEffectQuaternion(mQuat1, rotateCen);

      centerEffects.apply( new MatrixEffectScale(mScaleCenter) );

      centerEffects.apply( new MatrixEffectMove(new Static3D(0,0,12)) );

      centerEffects.apply(quat2cen);

      regionEffects.apply( new MatrixEffectScale(mScaleRegion) );

      regionEffects.apply( centerMove );

      regionEffects.apply( new MatrixEffectMove(mRegionPoint) );

      regionEffects.apply(quat2cen);

      resetMatrixEffects();

      resetVertexEffects();

      // quite tricky: move the background exactly to the FAR plane! (see InternalOutputSurface.setProjection() )

      backgroundEffects.apply(new MatrixEffectScale(mScaleBackground) );

      }

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

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

      mObjectEffects.apply(quat2obj);

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

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

    void showRegionAndCenter(boolean showRegion, boolean showCenter)

      {

      if( mShowingCenter!=showCenter  )

        {

        if( showCenter )

        }

      }

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

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

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

    void setCenter(float x, float y, float z)

      {

      mCenterPoint.set(mFactorObj*x,mFactorObj*y,mFactorObj*z);

      }

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

    void setRegion(float x, float y, float z, float r)

      {

      float factorReg = 2*mFactorObj*r;

      mRegionPoint.set(mFactorObj*x,mFactorObj*y, mFactorObj*z);

      mScaleRegion.set(factorReg,factorReg,factorReg);

      }

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

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

      {

      mScreen.render(System.currentTimeMillis());

      }

      {

      mWidth = width;

      mScreenMin = Math.min(width, height);

      float factorCen;

      if( width*mObjHeight > height*mObjWidth ) // screen is more 'horizontal' than the Object

        {

        mFactorObj = (mFactor*height)/mObjHeight;

        factorCen  = (0.08f  *height);

        }

      else

        mFactorObj = (mFactor*width)/mObjWidth;

        factorCen  = (0.08f  *width);

        }

      setCenter(0,0,0);

      setRegion(0.0f,0.0f,0.0f,0.25f*(mObjWidth+mObjHeight));

      mMoveObject.set( 0, 0 , -mFactorObj*mObjDepth );

      mScaleObject.set(mFactorObj,mFactorObj,mFactorObj);

      mScaleCenter.set(factorCen,factorCen,factorCen);

      // quite tricky: move the background exactly to the FAR plane! (see InternalOutputSurface.setProjection() )

      mMoveBackground.set( 0,0, -0.9f*height*(1.0f-NEAR)/(2.0f*(float)Math.tan(FOV*Math.PI/360)) );

      mScaleBackground.set( 2*width, 2*height, 1.0f );

      mScreen.resize(width, height);

      }

      {

      GenericActivity2 act = (GenericActivity2)mView.getContext();

      InputStream isB = act.getResources().openRawResource(R.raw.water);

      Bitmap bitmapB,bitmapC,bitmapR;

        bitmapB = BitmapFactory.decodeStream(isB);

        }

      finally 

          isB.close();

          }

        catch(IOException ignored) { }

        }  

      mObjectTexture.setTexture( act.getBitmap() );

      Effect.enableEffects(EffectType.VERTEX);

      DistortedLibrary.needTransformFeedback();

      DistortedLibrary.onSurfaceCreated(this);

      }

      }

}