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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkImageFileReaderStreamingTest.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
#ifdef __BORLANDC__
#define ITK_LEAN_AND_MEAN
#endif
#include <fstream>
#include "itkImageFileReader.h"
#include "itkPipelineMonitorImageFilter.h"
#include "itkStreamingImageFilter.h"
int itkImageFileReaderStreamingTest(int argc, char* argv[])
{
if( argc < 2 )
{
std::cerr << "Usage: " << argv[0] << " input [expected-to-stream 1|0 [ force-no-streaming 1|0] ]" << std::endl;
return EXIT_FAILURE;
}
unsigned int numberOfDataPieces = 4;
bool expectedToStream = true;
if( argc > 2 )
{
if( atoi(argv[2]) != 1 )
{
expectedToStream = false;
}
}
bool forceNoStreamingInput = false;
if( argc > 3 )
{
if( atoi(argv[3]) == 1 )
{
forceNoStreamingInput = true;
}
}
typedef unsigned char PixelType;
typedef itk::Image<PixelType,3> ImageType;
typedef itk::ImageFileReader<ImageType> ReaderType;
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName( argv[1] );
reader->SetUseStreaming( true );
typedef itk::PipelineMonitorImageFilter<ImageType> MonitorFilter;
MonitorFilter::Pointer monitor = MonitorFilter::New();
monitor->SetInput(reader->GetOutput());
typedef itk::StreamingImageFilter<ImageType, ImageType> StreamingFilter;
StreamingFilter::Pointer streamer = StreamingFilter::New();
streamer->SetInput(monitor->GetOutput());
streamer->SetNumberOfStreamDivisions(numberOfDataPieces);
try
{
if (forceNoStreamingInput)
{
monitor->UpdateLargestPossibleRegion();
}
else
{
streamer->Update();
}
}
catch( itk::ExceptionObject & err )
{
std::cerr << "ExceptionObject caught !" << std::endl;
std::cerr << err << std::endl;
return EXIT_FAILURE;
}
bool passed = true;
if( expectedToStream )
{
if( !monitor->VerifyAllInputCanStream(numberOfDataPieces) )
{
passed = false;
}
}
else
{
if( !monitor->VerifyAllIputCanNotStream() )
{
passed = false;
}
}
if( !passed )
{
std::cout << monitor << std::endl;
std::cout << "pipeline did not execute as expected!" << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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