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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkImageComputeOffsetAndIndexTest.cxx
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#if defined(_MSC_VER)
#pragma warning ( disable : 4786 )
#endif
#include <iostream>
#define ITK_LEAN_AND_MEAN
#include "itkImage.h"
#include "itkImageHelper.h"
#include "itkTimeProbesCollectorBase.h"
template <class TImage>
void ComputeIndex(TImage *image, unsigned int count, unsigned int repeat)
{
typename TImage::IndexType index;
for (unsigned j = 0; j < repeat; j++)
{
for (unsigned int i = 0; i < count; i++)
{
index = image->ComputeIndex (i);
}
}
std::cout << "Last index: " << index << std::endl;
}
template <class TImage>
void ComputeFastIndex(TImage *image, unsigned int count, unsigned int repeat)
{
typename TImage::IndexType index;
index.Fill( 0 );
const typename TImage::IndexType &bufferedRegionIndex = image->GetBufferedRegion().GetIndex();
const typename TImage::OffsetValueType *offsetTable = image->GetOffsetTable();
for (unsigned int j = 0; j < repeat; j++)
{
for (unsigned int i = 0; i < count; i++)
{
itk::ImageHelper<TImage::ImageDimension,TImage::ImageDimension>::ComputeIndex(bufferedRegionIndex,
i,
offsetTable,
index);
}
}
std::cout << "Last index: " << index << std::endl;
}
template <class TImage>
void ComputeOffset(TImage *image, unsigned int count, unsigned int repeat)
{
typename TImage::OffsetValueType offset = 0;
typename TImage::OffsetValueType accum = 0;
typename TImage::IndexType index;
typename TImage::OffsetType indexIncr;
indexIncr.Fill(1);
for (unsigned j = 0; j < repeat; j++)
{
index.Fill(0);
for (unsigned int i = 0; i < count; i++)
{
offset = image->ComputeOffset (index);
accum += offset;
index += indexIncr;
}
}
std::cout << "Last offset: " << offset << ": " << accum << std::endl;
}
template <class TImage>
void ComputeFastOffset(TImage *image, unsigned int count, unsigned int repeat)
{
typename TImage::OffsetValueType offset = 0;
typename TImage::OffsetValueType accum = 0;
typename TImage::IndexType index;
typename TImage::OffsetType indexIncr;
indexIncr.Fill(1);
const typename TImage::OffsetValueType *offsetTable = image->GetOffsetTable();
for (unsigned j = 0; j < repeat; j++)
{
index.Fill(0);
for (unsigned int i = 0; i < count; i++)
{
offset = 0;
itk::ImageHelper<TImage::ImageDimension,TImage::ImageDimension>::ComputeOffset(image->GetBufferedRegion().GetIndex(),
index,
offsetTable,
offset);
accum += offset;
index += indexIncr;
}
}
std::cout << "Last offset: " << offset << ": " << accum << std::endl;
}
int itkImageComputeOffsetAndIndexTest(int, char* [] )
{
itk::TimeProbesCollectorBase collector;
#define TRY_FAST_INDEX(dim) \
{ \
typedef char PixelType; \
typedef itk::Image< PixelType, dim> ImageType; \
ImageType::Pointer myImage = ImageType::New(); \
ImageType::SizeType size; \
ImageType::IndexType index; \
ImageType::RegionType region; \
size.Fill(50); \
index.Fill(0); \
region.SetSize(size); \
region.SetIndex(index); \
myImage->SetLargestPossibleRegion( region ); \
myImage->SetBufferedRegion( region ); \
myImage->SetRequestedRegion( region ); \
myImage->Allocate(); \
collector.Start("ComputeIndexFast " #dim"D"); \
unsigned int totalSize = 1; \
for (unsigned int i = 0; i < dim; i++) totalSize *= size[i]; \
unsigned int repeat = 1000; \
if (dim > 2 ) repeat = 100; \
if (dim > 3) repeat = 10; \
if (dim > 4) repeat = 1; \
ComputeFastIndex<ImageType>(myImage, totalSize, repeat); \
collector.Stop("ComputeIndexFast " #dim"D"); \
}
#define TRY_INDEX(dim) \
{ \
typedef char PixelType; \
typedef itk::Image< PixelType, dim> ImageType; \
ImageType::Pointer myImage = ImageType::New(); \
ImageType::SizeType size; \
ImageType::IndexType index; \
ImageType::RegionType region; \
size.Fill(50); \
index.Fill(0); \
region.SetSize(size); \
region.SetIndex(index); \
myImage->SetLargestPossibleRegion( region ); \
myImage->SetBufferedRegion( region ); \
myImage->SetRequestedRegion( region ); \
myImage->Allocate(); \
collector.Start("ComputeIndex " #dim"D"); \
unsigned int totalSize = 1; \
for (unsigned int i = 0; i < dim; i++) totalSize *= size[i]; \
unsigned int repeat = 1000; \
if (dim > 2 ) repeat = 100; \
if (dim > 3) repeat = 10; \
if (dim > 4) repeat = 1; \
ComputeIndex<ImageType>(myImage, totalSize, repeat); \
collector.Stop("ComputeIndex " #dim"D"); \
}
#define TRY_FAST_OFFSET(dim) \
{ \
typedef char PixelType; \
typedef itk::Image< PixelType, dim> ImageType; \
ImageType::Pointer myImage = ImageType::New(); \
ImageType::SizeType size; \
ImageType::IndexType index; \
ImageType::RegionType region; \
size.Fill(50); \
index.Fill(0); \
region.SetSize(size); \
region.SetIndex(index); \
myImage->SetLargestPossibleRegion( region ); \
myImage->SetBufferedRegion( region ); \
myImage->SetRequestedRegion( region ); \
myImage->Allocate(); \
collector.Start("ComputeOffsetFast " #dim"D"); \
unsigned int repeat = 1; \
if (dim < 4 ) repeat = 100; \
unsigned int totalSize = 1; \
for (unsigned int i = 0; i < dim; i++) totalSize *= size[i]; \
ComputeFastOffset<ImageType>(myImage, size[0], totalSize*repeat); \
collector.Stop("ComputeOffsetFast " #dim"D"); \
}
#define TRY_OFFSET(dim) \
{ \
typedef char PixelType; \
typedef itk::Image< PixelType, dim> ImageType; \
ImageType::Pointer myImage = ImageType::New(); \
ImageType::SizeType size; \
ImageType::IndexType index; \
ImageType::RegionType region; \
size.Fill(50); \
index.Fill(0); \
region.SetSize(size); \
region.SetIndex(index); \
myImage->SetLargestPossibleRegion( region ); \
myImage->SetBufferedRegion( region ); \
myImage->SetRequestedRegion( region ); \
myImage->Allocate(); \
collector.Start("ComputeOffset " #dim"D"); \
unsigned int repeat = 1; \
if (dim < 4 ) repeat = 100; \
unsigned int totalSize = 1; \
for (unsigned int i = 0; i < dim; i++) totalSize *= size[i]; \
ComputeOffset<ImageType>(myImage, size[0], totalSize*repeat); \
collector.Stop("ComputeOffset " #dim"D"); \
}
TRY_INDEX(1);
TRY_INDEX(2);
TRY_INDEX(3);
TRY_INDEX(4);
TRY_FAST_INDEX(1);
TRY_FAST_INDEX(2);
TRY_FAST_INDEX(3);
TRY_FAST_INDEX(4);
TRY_OFFSET(1);
TRY_OFFSET(2);
TRY_OFFSET(3);
TRY_OFFSET(4);
TRY_FAST_OFFSET(1);
TRY_FAST_OFFSET(2);
TRY_FAST_OFFSET(3);
TRY_FAST_OFFSET(4);
// Print the results of the time probes
collector.Report();
return EXIT_SUCCESS;
}
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