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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkInPlaceImageFilter.txx,v $
Language: C++
Date: $Date: 2007-08-27 12:47:57 $
Version: $Revision: 1.8 $
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
Portions of this code are covered under the VTK copyright.
See VTKCopyright.txt or http://www.kitware.com/VTKCopyright.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.
=========================================================================*/
#ifndef _itkInPlaceImageFilter_txx
#define _itkInPlaceImageFilter_txx
#include "itkInPlaceImageFilter.h"
namespace itk
{
/**
*
*/
template <class TInputImage, class TOutputImage>
InPlaceImageFilter<TInputImage, TOutputImage>
::InPlaceImageFilter()
: m_InPlace(true)
{
}
/**
*
*/
template <class TInputImage, class TOutputImage>
InPlaceImageFilter<TInputImage, TOutputImage>
::~InPlaceImageFilter()
{
}
template<class TInputImage, class TOutputImage>
void
InPlaceImageFilter<TInputImage, TOutputImage>
::PrintSelf(std::ostream& os, Indent indent) const
{
Superclass::PrintSelf(os, indent);
os << indent << "InPlace: " << (m_InPlace ? "On" : "Off") << std::endl;
if ( this->CanRunInPlace())
{
os << indent << "The input and output to this filter are the same type. The filter can be run in place." << std::endl;
}
else
{
os << indent << "The input and output to this filter are different types. The filter cannot be run in place." << std::endl;
}
}
template<class TInputImage, class TOutputImage>
void
InPlaceImageFilter<TInputImage, TOutputImage>
::AllocateOutputs()
{
// if told to run in place and the types support it,
if (m_InPlace && (typeid(TInputImage) == typeid(TOutputImage)))
{
// Graft this first input to the output. Later, we'll need to
// remove the input's hold on the bulk data.
//
OutputImagePointer inputAsOutput
= dynamic_cast<TOutputImage *>(const_cast<TInputImage *>(this->GetInput()));
if (inputAsOutput)
{
this->GraftOutput( inputAsOutput );
}
else
{
// if we cannot cast the input to an output type, then allocate
// an output usual.
OutputImagePointer outputPtr;
outputPtr = this->GetOutput(0);
outputPtr->SetBufferedRegion(outputPtr->GetRequestedRegion());
outputPtr->Allocate();
}
// If there are more than one outputs, allocate the remaining outputs
for (unsigned int i=1; i < this->GetNumberOfOutputs(); i++)
{
OutputImagePointer outputPtr;
outputPtr = this->GetOutput(i);
outputPtr->SetBufferedRegion(outputPtr->GetRequestedRegion());
outputPtr->Allocate();
}
}
else
{
Superclass::AllocateOutputs();
}
}
template<class TInputImage, class TOutputImage>
void
InPlaceImageFilter<TInputImage, TOutputImage>
::ReleaseInputs()
{
// if told to run in place and the types support it,
if (m_InPlace && (typeid(TInputImage) == typeid(TOutputImage)))
{
// Release any input where the ReleaseData flag has been set
ProcessObject::ReleaseInputs();
// Release input 0 by default since we overwrote it
TInputImage * ptr = const_cast<TInputImage*>( this->GetInput() );
if( ptr )
{
ptr->ReleaseData();
}
}
else
{
Superclass::ReleaseInputs();
}
}
} // end namespace itk
#endif
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