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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkTrivialProducer.cxx,v $
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 "vtkTrivialProducer.h"
#include "vtkImageData.h"
#include "vtkStreamingDemandDrivenPipeline.h"
#include "vtkGarbageCollector.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
vtkCxxRevisionMacro(vtkTrivialProducer, "$Revision: 1.9 $");
vtkStandardNewMacro(vtkTrivialProducer);
//----------------------------------------------------------------------------
vtkTrivialProducer::vtkTrivialProducer()
{
this->SetNumberOfInputPorts(0);
this->SetNumberOfOutputPorts(1);
this->Output = 0;
}
//----------------------------------------------------------------------------
vtkTrivialProducer::~vtkTrivialProducer()
{
this->SetOutput(0);
}
//----------------------------------------------------------------------------
void vtkTrivialProducer::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
//----------------------------------------------------------------------------
void vtkTrivialProducer::SetOutput(vtkDataObject*newOutput)
{
vtkDataObject* oldOutput = this->Output;
if(newOutput != oldOutput)
{
if(newOutput)
{
newOutput->Register(this);
}
this->Output = newOutput;
this->GetExecutive()->SetOutputData(0, newOutput);
if(oldOutput)
{
oldOutput->UnRegister(this);
}
this->Modified();
}
}
//----------------------------------------------------------------------------
unsigned long vtkTrivialProducer::GetMTime()
{
unsigned long mtime = this->Superclass::GetMTime();
if(this->Output)
{
unsigned long omtime = this->Output->GetMTime();
if(omtime > mtime)
{
mtime = omtime;
}
}
return mtime;
}
//----------------------------------------------------------------------------
vtkExecutive* vtkTrivialProducer::CreateDefaultExecutive()
{
return vtkStreamingDemandDrivenPipeline::New();
}
//----------------------------------------------------------------------------
int vtkTrivialProducer::FillInputPortInformation(int, vtkInformation*)
{
return 1;
}
//----------------------------------------------------------------------------
int vtkTrivialProducer::FillOutputPortInformation(int, vtkInformation*)
{
return 1;
}
//----------------------------------------------------------------------------
int
vtkTrivialProducer::ProcessRequest(vtkInformation* request,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector)
{
if(request->Has(vtkDemandDrivenPipeline::REQUEST_INFORMATION()) &&
this->Output)
{
vtkInformation* outputInfo = outputVector->GetInformationObject(0);
vtkInformation* dataInfo = this->Output->GetInformation();
if(dataInfo->Get(vtkDataObject::DATA_EXTENT_TYPE()) == VTK_PIECES_EXTENT)
{
// There is no real source to change the output data, so we can
// produce exactly one piece.
outputInfo->Set(vtkStreamingDemandDrivenPipeline::MAXIMUM_NUMBER_OF_PIECES(), 1);
}
else if(dataInfo->Get(vtkDataObject::DATA_EXTENT_TYPE()) == VTK_3D_EXTENT)
{
// The whole extent is just the extent because the output has no
// real source to change its data.
int extent[6];
dataInfo->Get(vtkDataObject::DATA_EXTENT(), extent);
outputInfo->Set(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT(),
extent, 6);
}
}
if(request->Has(vtkDemandDrivenPipeline::REQUEST_DATA_NOT_GENERATED()))
{
// We do not really generate the output. Do not let the executive
// initialize it.
vtkInformation* outputInfo = outputVector->GetInformationObject(0);
outputInfo->Set(vtkDemandDrivenPipeline::DATA_NOT_GENERATED(), 1);
}
if(request->Has(vtkDemandDrivenPipeline::REQUEST_DATA()) && this->Output)
{
// Pretend we generated the output.
vtkInformation* outputInfo = outputVector->GetInformationObject(0);
outputInfo->Remove(vtkDemandDrivenPipeline::DATA_NOT_GENERATED());
}
return this->Superclass::ProcessRequest(request,inputVector,outputVector);
}
//----------------------------------------------------------------------------
void vtkTrivialProducer::ReportReferences(vtkGarbageCollector* collector)
{
this->Superclass::ReportReferences(collector);
vtkGarbageCollectorReport(collector, this->Output, "Output");
}
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