/*
* #%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
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* 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.img.planar;
import static org.junit.Assert.assertArrayEquals;
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.type.numeric.integer.IntType;
import net.imglib2.util.IntervalIndexer;
import org.junit.Before;
import org.junit.Test;
/**
* TODO
*
*/
public class CopyTest
{
long[] dimensions;
int numValues;
int[] intData;
long intDataSum;
PlanarImg< IntType, ? > intImg;
@Before
public void createSourceData()
{
dimensions = new long[] { 48, 17, 102 };
numValues = 1;
for ( int d = 0; d < dimensions.length; ++d )
numValues *= dimensions[ d ];
intData = new int[ numValues ];
intDataSum = 0;
final Random random = new Random( 0 );
for ( int i = 0; i < numValues; ++i )
{
intData[ i ] = random.nextInt();
intDataSum += intData[ i ];
}
intImg = new PlanarImgFactory< IntType >().create( dimensions, new IntType() );
final long[] pos = new long[ dimensions.length ];
final RandomAccess< IntType > a = intImg.randomAccess();
for ( int i = 0; i < numValues; ++i )
{
IntervalIndexer.indexToPosition( i, dimensions, pos );
a.setPosition( pos );
a.get().set( intData[ i ] );
}
}
void copyWithSourceIteration( final Img< IntType > srcImg, final Img< IntType > dstImg )
{
final long[] pos = new long[ dimensions.length ];
final Cursor< IntType > src = srcImg.localizingCursor();
final RandomAccess< IntType > dst = dstImg.randomAccess();
while ( src.hasNext() )
{
src.fwd();
src.localize( pos );
dst.setPosition( pos );
dst.get().set( src.get() );
}
}
void copyWithDestIteration( final Img< IntType > srcImg, final Img< IntType > dstImg )
{
final long[] pos = new long[ dstImg.numDimensions() ];
final Cursor< IntType > dst = dstImg.localizingCursor();
final RandomAccess< IntType > src = srcImg.randomAccess();
while ( dst.hasNext() )
{
dst.fwd();
dst.localize( pos );
src.setPosition( pos );
dst.get().set( src.get() );
}
}
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;
}
@Test
public void testCopyToArrayContainerWithSourceIteration()
{
final ArrayImg< IntType, ? > array = new ArrayImgFactory< IntType >().create( dimensions, new IntType() );
copyWithSourceIteration( intImg, array );
assertArrayEquals( intData, getImgAsInts( array ) );
}
@Test
public void testCopyToArrayContainerWithDestIteration()
{
final ArrayImg< IntType, ? > array = new ArrayImgFactory< IntType >().create( dimensions, new IntType() );
copyWithDestIteration( intImg, array );
assertArrayEquals( intData, getImgAsInts( array ) );
}
@Test
public void testCopyToPlanarContainerWithSourceIteration()
{
final PlanarImg< IntType, ? > planarImg = new PlanarImgFactory< IntType >().create( dimensions, new IntType() );
copyWithSourceIteration( intImg, planarImg );
assertArrayEquals( intData, getImgAsInts( planarImg ) );
}
@Test
public void testCopyToPlanarContainerWithDestIteration()
{
final PlanarImg< IntType, ? > planarImg = new PlanarImgFactory< IntType >().create( dimensions, new IntType() );
copyWithDestIteration( intImg, planarImg );
assertArrayEquals( intData, getImgAsInts( planarImg ) );
}
}