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/*=========================================================================
Program: Visualization Toolkit
Module: vtkXMLPStructuredDataWriter.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 "vtkXMLPStructuredDataWriter.h"
#include "vtkXMLStructuredDataWriter.h"
#include "vtkExecutive.h"
#include "vtkExtentTranslator.h"
#include "vtkErrorCode.h"
#include "vtkDataSet.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkStreamingDemandDrivenPipeline.h"
//----------------------------------------------------------------------------
vtkXMLPStructuredDataWriter::vtkXMLPStructuredDataWriter()
{
}
//----------------------------------------------------------------------------
vtkXMLPStructuredDataWriter::~vtkXMLPStructuredDataWriter()
{
}
//----------------------------------------------------------------------------
void vtkXMLPStructuredDataWriter::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
}
//----------------------------------------------------------------------------
void vtkXMLPStructuredDataWriter::WritePrimaryElementAttributes(ostream &os, vtkIndent indent)
{
int* wExt = this->GetInputInformation(0, 0)->Get(
vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT());
this->WriteVectorAttribute("WholeExtent", 6, wExt);
this->Superclass::WritePrimaryElementAttributes(os, indent);
}
//----------------------------------------------------------------------------
void vtkXMLPStructuredDataWriter::WritePPieceAttributes(int index)
{
int extent[6];
vtkInformation* inInfo = this->GetExecutive()->GetInputInformation(0, 0);
vtkExtentTranslator* et = vtkExtentTranslator::SafeDownCast(
inInfo->Get(vtkStreamingDemandDrivenPipeline::EXTENT_TRANSLATOR()));
et->SetNumberOfPieces(this->GetNumberOfPieces());
et->SetWholeExtent(inInfo->Get(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT()));
et->SetPiece(index);
et->SetGhostLevel(0);
et->PieceToExtent();
et->GetExtent(extent);
this->WriteVectorAttribute("Extent", 6, extent);
if (this->ErrorCode == vtkErrorCode::OutOfDiskSpaceError)
{
return;
}
this->Superclass::WritePPieceAttributes(index);
}
//----------------------------------------------------------------------------
vtkXMLWriter* vtkXMLPStructuredDataWriter::CreatePieceWriter(int index)
{
int extent[6];
vtkInformation* inInfo = this->GetExecutive()->GetInputInformation(0, 0);
vtkExtentTranslator* et = vtkExtentTranslator::SafeDownCast(
inInfo->Get(vtkStreamingDemandDrivenPipeline::EXTENT_TRANSLATOR()));
et->SetNumberOfPieces(this->GetNumberOfPieces());
et->SetWholeExtent(inInfo->Get(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT()));
et->SetPiece(index);
et->SetGhostLevel(0);
et->PieceToExtent();
et->GetExtent(extent);
vtkXMLStructuredDataWriter* pWriter = this->CreateStructuredPieceWriter();
pWriter->SetWriteExtent(extent);
return pWriter;
}
//----------------------------------------------------------------------------
int vtkXMLPStructuredDataWriter::ProcessRequest(vtkInformation* request,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector)
{
// generate the data
if(request->Has(vtkStreamingDemandDrivenPipeline::REQUEST_UPDATE_EXTENT()))
{
return this->RequestUpdateExtent(request, inputVector, outputVector);
}
return this->Superclass::ProcessRequest(request, inputVector, outputVector);
}
//----------------------------------------------------------------------------
int vtkXMLPStructuredDataWriter::RequestUpdateExtent(
vtkInformation *vtkNotUsed(request),
vtkInformationVector **inputVector,
vtkInformationVector *vtkNotUsed(outputVector))
{
vtkInformation *inInfo = inputVector[0]->GetInformationObject(0);
// The code below asks for an extent based on the number of pieces and
// the first piece. This is mainly for the sake of other filters/writers
// that may internally use this reader. Those writers usually delegate
// RequestUpdateExtent() to the internal write and expect it to do the
// right thing. Before this change, vtkXMLPStructuredDataWriter did not
// bother setting the update extent because it is taken care of by the
// vtkXMLStructuredDataWriter during WritePiece() (see vtkXMLPDataWriter).
// This is fine when vtkXMLPStructuredDataWriter's input is connected
// to the actual pipeline but causes problems when it is not, which happens
// in the situation described above. Here I picked the StartPiece as
// the default. This will not effect the behavior when writing multiple
// pieces because that does its own RequestUpdateExtent with the right
// piece information.
int extent[6];
vtkExtentTranslator* et = vtkExtentTranslator::SafeDownCast(
inInfo->Get(vtkStreamingDemandDrivenPipeline::EXTENT_TRANSLATOR()));
et->SetNumberOfPieces(this->GetNumberOfPieces());
et->SetWholeExtent(inInfo->Get(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT()));
et->SetPiece(this->StartPiece);
et->SetGhostLevel(0);
et->PieceToExtent();
et->GetExtent(extent);
inInfo->Set(vtkStreamingDemandDrivenPipeline::UPDATE_EXTENT(), extent, 6);
return 1;
}
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