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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.save;
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import java.io.File;
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import java.io.IOException;
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import java.io.InputStream;
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import java.nio.ByteBuffer;
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import java.nio.ByteOrder;
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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.effect.MatrixEffectMove;
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import org.distorted.library.effect.MatrixEffectScale;
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import org.distorted.library.effect.VertexEffectSink;
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import org.distorted.library.main.DistortedLibrary;
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import org.distorted.library.main.DistortedEffects;
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import org.distorted.library.main.DistortedScreen;
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import org.distorted.library.main.DistortedTexture;
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import org.distorted.library.mesh.MeshRectangles;
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import org.distorted.library.main.DistortedFramebuffer;
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import org.distorted.library.type.Dynamic1D;
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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 android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.opengl.GLES31;
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import android.opengl.GLSurfaceView;
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import android.os.Environment;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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class SaveRenderer implements GLSurfaceView.Renderer
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{
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private GLSurfaceView mView;
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private DistortedEffects mEffects;
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private DistortedFramebuffer mOffscreen;
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private DistortedTexture mTexture;
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private MeshRectangles mMesh;
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private DistortedScreen mScreen;
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private Static1D s0;
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private Static3D mScaleFactor, mScaleMain, mMove;
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private float mScale;
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private int bmpHeight, bmpWidth;
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private int scrHeight, scrWidth;
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private float boobsSink;
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private boolean isSaving = false;
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private String mPath;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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SaveRenderer(GLSurfaceView v)
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{
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mView = v;
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boobsSink = 1.0f;
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Static3D pLeft = new Static3D(132, 336, 0);
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Static3D pRight= new Static3D(247, 336, 0);
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Static4D sinkRegion = new Static4D(0,0,0,60);
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s0 = new Static1D(boobsSink);
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Dynamic1D diSink = new Dynamic1D();
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diSink.add(s0);
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mScale = 1.0f;
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mScaleFactor = new Static3D(mScale,mScale,1.0f);
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mMove = new Static3D(0,0,0);
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mScaleMain = new Static3D(1,1,1);
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mEffects = new DistortedEffects();
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mEffects.apply( new VertexEffectSink(diSink, pLeft , sinkRegion) );
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mEffects.apply( new VertexEffectSink(diSink, pRight, sinkRegion) );
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mEffects.apply( new MatrixEffectScale(mScaleMain));
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mEffects.apply( new MatrixEffectScale(mScaleFactor));
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mEffects.apply( new MatrixEffectMove(mMove));
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mScreen = new DistortedScreen();
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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void setSize(float s)
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{
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boobsSink = s;
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s0.set(boobsSink);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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void setScale(float s)
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{
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mScale = s;
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mScaleFactor.set(s,s,1.0f);
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// when we move our scroll bar, this does NOT keep allocating and deallocating
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// the whole WxH texture - the allocation happens only once, on next render, i.e. -
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// when one presses the 'SAVE' button.
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if( mOffscreen!=null )
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mOffscreen.resize( (int)(mScale*bmpWidth),(int)(mScale*bmpHeight));
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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void Save()
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{
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if( !isSaving )
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{
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isSaving = true;
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File file;
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int lowestNotFound = 1;
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while(true)
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{
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mPath = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES) + "/girl" + lowestNotFound +".png";
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file = new File(mPath);
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if( !file.exists() ) break;
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lowestNotFound++;
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}
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}
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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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if( isSaving ) // render to an offscreen buffer and read pixels
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{
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mMove.set(0,0,0);
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mScaleMain.set(1,1,1);
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mOffscreen.render(System.currentTimeMillis());
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applyMatrixEffects(scrWidth,scrHeight);
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int fW =(int)(mScale*bmpWidth);
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int fH =(int)(mScale*bmpHeight);
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ByteBuffer buf = ByteBuffer.allocateDirect(fW*fH*4);
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buf.order(ByteOrder.LITTLE_ENDIAN);
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int textureID = mOffscreen.getTextureID();
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if( textureID>=0 )
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{
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GLES31.glBindTexture(GLES31.GL_TEXTURE_2D, textureID);
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GLES31.glReadPixels( 0, 0, fW, fH, GLES31.GL_RGBA, GLES31.GL_UNSIGNED_BYTE, buf);
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SaveWorkerThread.newBuffer(buf,fW,fH,mPath);
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}
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else
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{
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android.util.Log.e("Save", "Error trying to read from offscreen FBO, textureID="+textureID);
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}
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isSaving = false;
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}
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// Quite subtle issue here. Since we share the DistortedEffects object between the mOffscreen
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// and mScreen surfaces, we cannot render both of them in one go using the same time. That
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// would make the second render, in this case mScreen's render, re-use the values of the
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// Dynamics calculated the first time around and we don't want that (mOffscreen's scale and move
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// are different! What would happen is the mScreen would be - one render when we are 'saving' -
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// get drawn with different dimensions and on-screen position, i.e. we would see a flash.
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mScreen.render(System.currentTimeMillis());
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void applyMatrixEffects(int width, int height)
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{
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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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mMove.set((width-w)/2,0,0);
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mScaleMain.set(factor,factor,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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mMove.set(0,(height-h)/2,0);
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mScaleMain.set(factor,factor,factor);
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}
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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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scrWidth = width;
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scrHeight= height;
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applyMatrixEffects(width, height);
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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.girl);
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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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if( mMesh==null ) mMesh = new MeshRectangles(30,30*bmpHeight/bmpWidth);
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if( mTexture==null ) mTexture = new DistortedTexture(bmpWidth,bmpHeight);
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mTexture.setTexture(bitmap);
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if( mOffscreen==null ) mOffscreen = new DistortedFramebuffer( (int)(mScale*bmpWidth) , (int)(mScale*bmpHeight),
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1, DistortedFramebuffer.NO_DEPTH_NO_STENCIL);
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mOffscreen.detachAll();
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mOffscreen.attach(mTexture,mEffects,mMesh);
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mScreen.detachAll();
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mScreen.attach(mTexture,mEffects,mMesh);
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VertexEffectSink.enable();
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try
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{
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DistortedLibrary.onCreate(mView.getContext());
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}
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catch(Exception ex)
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{
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android.util.Log.e("Renderer", ex.getMessage() );
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}
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}
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}
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