/*
* #%L
* ImgLib2: a general-purpose, multidimensional image processing library.
* %%
* Copyright (C) 2009 - 2014 Stephan Preibisch, Tobias Pietzsch, Barry DeZonia,
* Stephan Saalfeld, Albert Cardona, Curtis Rueden, Christian Dietz, Jean-Yves
* Tinevez, Johannes Schindelin, Lee Kamentsky, Larry Lindsey, Grant Harris,
* Mark Hiner, Aivar Grislis, Martin Horn, Nick Perry, Michael Zinsmaier,
* Steffen Jaensch, Jan Funke, Mark Longair, and Dimiter Prodanov.
* %%
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
* #L%
*/
package net.imglib2.view;
import java.util.Random;
import net.imglib2.Cursor;
import net.imglib2.RandomAccess;
import net.imglib2.img.Img;
import net.imglib2.img.array.ArrayImg;
import net.imglib2.img.array.ArrayImgFactory;
import net.imglib2.img.basictypeaccess.array.IntArray;
import net.imglib2.img.cell.CellImg;
import net.imglib2.img.cell.CellImgFactory;
import net.imglib2.img.cell.DefaultCell;
import net.imglib2.type.numeric.integer.IntType;
import net.imglib2.util.BenchmarkHelper;
import net.imglib2.util.IntervalIndexer;
/**
*
* @author ImgLib2 developers
* @author Tobias Pietzsch
* @author Tobias Pietzsch <tobias.pietzsch@gmail.com>
*/
public class RandomAccessibleIntervalCursorBenchmark
{
long[] dimensions;
int numValues;
int[] intData;
ArrayImg< IntType, IntArray > array1;
ArrayImg< IntType, IntArray > array2;
CellImg< IntType, IntArray, DefaultCell< IntArray > > cell;
@SuppressWarnings( "unchecked" )
public void setUp()
{
dimensions = new long[] { 207, 103, 1021 };
array1 = ( ArrayImg< IntType, IntArray > ) new ArrayImgFactory< IntType >().create( dimensions, new IntType() );
array2 = ( ArrayImg< IntType, IntArray > ) new ArrayImgFactory< IntType >().create( dimensions, new IntType() );
cell = ( CellImg< IntType, IntArray, DefaultCell< IntArray > > ) new CellImgFactory< IntType >().create( dimensions, new IntType() );
// fill intData with random values
numValues = 1;
for ( int d = 0; d < dimensions.length; ++d )
numValues *= dimensions[ d ];
intData = new int[ numValues ];
final Random random = new Random( 0 );
for ( int i = 0; i < numValues; ++i )
intData[ i ] = random.nextInt();
// copy intData to array1
final long[] pos = new long[ dimensions.length ];
final RandomAccess< IntType > a = array1.randomAccess();
for ( int i = 0; i < numValues; ++i )
{
IntervalIndexer.indexToPosition( i, dimensions, pos );
a.setPosition( pos );
a.get().set( intData[ i ] );
}
}
static < C extends Cursor< IntType >, D extends Cursor< IntType > > void copy( final C src, final D dst )
{
while ( src.hasNext() )
dst.next().set( src.next().get() );
}
static int[] getImgAsInts( final Img< IntType > img )
{
final RandomAccess< IntType > a = img.randomAccess();
final int N = ( int ) img.size();
final int[] data = new int[ N ];
final long[] dim = new long[ img.numDimensions() ];
final long[] pos = new long[ img.numDimensions() ];
img.dimensions( dim );
for ( int i = 0; i < N; ++i )
{
IntervalIndexer.indexToPosition( i, dim, pos );
a.setPosition( pos );
data[ i ] = a.get().get();
}
return data;
}
public static void main( final String[] args )
{
final RandomAccessibleIntervalCursorBenchmark b = new RandomAccessibleIntervalCursorBenchmark();
b.setUp();
for ( int iteration = 0; iteration < 10; ++iteration )
{
System.out.println( "array to RandomAccessibleIntervalCursor( array ) copy" );
BenchmarkHelper.benchmarkAndPrint( 20, false, new Runnable()
{
@Override
public void run()
{
copy( b.array1.cursor(), new RandomAccessibleIntervalCursor< IntType >( b.array2 ) );
}
} );
}
}
}