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/*=========================================================================
Program: Visualization Toolkit
Module: vtkImageConstantPad.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 "vtkImageConstantPad.h"
#include "vtkObjectFactory.h"
#include "vtkImageData.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkStreamingDemandDrivenPipeline.h"
vtkStandardNewMacro(vtkImageConstantPad);
//----------------------------------------------------------------------------
// Constructor sets default values
vtkImageConstantPad::vtkImageConstantPad()
{
this->Constant = 0.0;
}
//----------------------------------------------------------------------------
// This templated function executes the filter for any type of data.
template <class T>
void vtkImageConstantPadExecute(vtkImageConstantPad *self,
vtkImageData *inData, T *inPtr,
vtkImageData *outData, T *outPtr,
int outExt[6], int inExt[6], int id)
{
int idxC, idxX, idxY, idxZ;
int maxC, maxX, maxY, maxZ;
vtkIdType inIncX, inIncY, inIncZ;
vtkIdType outIncX, outIncY, outIncZ;
T constant;
int inMinX, inMaxX, inMaxC;
constant = static_cast<T>(self->GetConstant());
int state0, state1, state2, state3;
unsigned long count = 0;
unsigned long target;
// find the region to loop over
maxC = outData->GetNumberOfScalarComponents();
maxX = outExt[1] - outExt[0];
maxY = outExt[3] - outExt[2];
maxZ = outExt[5] - outExt[4];
inMaxC = inData->GetNumberOfScalarComponents();
inMinX = inExt[0] - outExt[0];
inMaxX = inExt[1] - outExt[0];
target = static_cast<unsigned long>((maxZ+1)*(maxY+1)/50.0);
target++;
// Get increments to march through data
inData->GetContinuousIncrements(inExt, inIncX, inIncY, inIncZ);
outData->GetContinuousIncrements(outExt, outIncX, outIncY, outIncZ);
// Loop through ouput pixels
for (idxZ = outExt[4]; idxZ <= outExt[5]; idxZ++)
{
state3 = (idxZ < inExt[4] || idxZ > inExt[5]);
for (idxY = outExt[2]; !self->AbortExecute && idxY <= outExt[3]; idxY++)
{
if (!id)
{
if (!(count%target))
{
self->UpdateProgress(count/(50.0*target));
}
count++;
}
state2 = (state3 || idxY < inExt[2] || idxY > inExt[3]);
if ((maxC == inMaxC) && (maxC == 1))
{
for (idxX = 0; idxX <= maxX; idxX++)
{
state1 = (state2 || idxX < inMinX || idxX > inMaxX);
if (state1)
{
*outPtr = constant;
}
else
{
*outPtr = *inPtr;
inPtr++;
}
outPtr++;
}
}
else
{
for (idxX = 0; idxX <= maxX; idxX++)
{
state1 = (state2 || idxX < inMinX || idxX > inMaxX);
for (idxC = 0; idxC < maxC; idxC++)
{
// Pixel operation
// Copy Pixel
state0 = (state1 || idxC >= inMaxC);
if (state0)
{
*outPtr = constant;
}
else
{
*outPtr = *inPtr;
inPtr++;
}
outPtr++;
}
}
}
outPtr += outIncY;
if (!state2)
{
inPtr += inIncY;
}
}
outPtr += outIncZ;
if (!state3)
{
inPtr += inIncZ;
}
}
}
//----------------------------------------------------------------------------
// This method is passed a input and output data, and executes the filter
// algorithm to fill the output from the input.
// It just executes a switch statement to call the correct function for
// the datas data types.
void vtkImageConstantPad::ThreadedRequestData(
vtkInformation * vtkNotUsed( request ),
vtkInformationVector** inputVector,
vtkInformationVector * vtkNotUsed( outputVector ),
vtkImageData ***inData,
vtkImageData **outData,
int outExt[6], int id)
{
void *outPtr = outData[0]->GetScalarPointerForExtent(outExt);
// this filter expects that input is the same type as output.
if (inData[0][0]->GetScalarType() != outData[0]->GetScalarType())
{
vtkErrorMacro(<< "Execute: input ScalarType, "
<< inData[0][0]->GetScalarType()
<< ", must match out ScalarType "
<< outData[0]->GetScalarType());
return;
}
// get the whole extent
int wExt[6];
vtkInformation *inInfo = inputVector[0]->GetInformationObject(0);
inInfo->Get(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT(),wExt);
// need to get the correct pointer for the input data
int inExt[6];
this->ComputeInputUpdateExtent(inExt,outExt,wExt);
void *inPtr = inData[0][0]->GetScalarPointerForExtent(inExt);
switch (inData[0][0]->GetScalarType())
{
vtkTemplateMacro(
vtkImageConstantPadExecute(this,
inData[0][0], static_cast<VTK_TT *>(inPtr),
outData[0], static_cast<VTK_TT *>(outPtr),
outExt, inExt, id));
default:
vtkErrorMacro(<< "Execute: Unknown input ScalarType");
return;
}
}
void vtkImageConstantPad::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
os << indent << "Constant: " << this->Constant << "\n";
}
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