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/*=========================================================================
Program: Visualization Toolkit
Module: TestDataObjectIO.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/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 notice for more information.
=========================================================================*/
#include "vtkGenericDataObjectReader.h"
#include "vtkGenericDataObjectWriter.h"
#include "vtkImageData.h"
#include "vtkImageNoiseSource.h"
void InitializeData(vtkImageData* Data)
{
vtkImageNoiseSource* const source = vtkImageNoiseSource::New();
source->SetWholeExtent(0, 15, 0, 15, 0, 0);
source->Update();
Data->ShallowCopy(source->GetOutput());
source->Delete();
}
bool CompareData(vtkImageData* Output, vtkImageData* Input)
{
if(memcmp(Input->GetDimensions(), Output->GetDimensions(), 3 * sizeof(int)))
return false;
const int point_count = Input->GetDimensions()[0] * Input->GetDimensions()[1] * Input->GetDimensions()[2];
for(int point = 0; point != point_count; ++point)
{
if(memcmp(Input->GetPoint(point), Output->GetPoint(point), 3 * sizeof(double)))
return false;
}
return true;
}
template<typename DataT>
bool TestDataObjectSerialization()
{
DataT* const output_data = DataT::New();
InitializeData(output_data);
const char* const filename = output_data->GetClassName();
vtkGenericDataObjectWriter* const writer = vtkGenericDataObjectWriter::New();
writer->SetInputData(output_data);
writer->SetFileName(filename);
writer->Write();
writer->Delete();
vtkGenericDataObjectReader* const reader = vtkGenericDataObjectReader::New();
reader->SetFileName(filename);
reader->Update();
vtkDataObject *obj = reader->GetOutput();
DataT* const input_data = DataT::SafeDownCast(obj);
if(!input_data)
{
reader->Delete();
output_data->Delete();
return false;
}
const bool result = CompareData(output_data, input_data);
reader->Delete();
output_data->Delete();
return result;
}
int TestDataObjectIO(int /*argc*/, char* /*argv*/[])
{
int result = 0;
if(!TestDataObjectSerialization<vtkImageData>())
{
cerr << "Error: failure serializing vtkImageData" << endl;
result = 1;
}
return result;
}
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