1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#include "vtkImageInPlaceFilter.h"
#include "vtkImageData.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkLargeInteger.h"
#include "vtkObjectFactory.h"
#include "vtkPointData.h"
#include "vtkStreamingDemandDrivenPipeline.h"
//------------------------------------------------------------------------------
VTK_ABI_NAMESPACE_BEGIN
vtkImageInPlaceFilter::vtkImageInPlaceFilter() = default;
//------------------------------------------------------------------------------
vtkImageInPlaceFilter::~vtkImageInPlaceFilter() = default;
//------------------------------------------------------------------------------
int vtkImageInPlaceFilter::RequestData(vtkInformation* vtkNotUsed(request),
vtkInformationVector** inputVector, vtkInformationVector* outputVector)
{
// get the data object
vtkInformation* outInfo = outputVector->GetInformationObject(0);
vtkImageData* output = vtkImageData::SafeDownCast(outInfo->Get(vtkDataObject::DATA_OBJECT()));
vtkInformation* inInfo = inputVector[0]->GetInformationObject(0);
vtkImageData* input = vtkImageData::SafeDownCast(inInfo->Get(vtkDataObject::DATA_OBJECT()));
int *inExt, *outExt;
inExt = inInfo->Get(vtkStreamingDemandDrivenPipeline::UPDATE_EXTENT());
outExt = outInfo->Get(vtkStreamingDemandDrivenPipeline::UPDATE_EXTENT());
// if the total size of the data is the same then can be in place
vtkLargeInteger inSize;
vtkLargeInteger outSize;
inSize = (inExt[1] - inExt[0] + 1);
inSize = inSize * (inExt[3] - inExt[2] + 1);
inSize = inSize * (inExt[5] - inExt[4] + 1);
outSize = (outExt[1] - outExt[0] + 1);
outSize = outSize * (outExt[3] - outExt[2] + 1);
outSize = outSize * (outExt[5] - outExt[4] + 1);
if (inSize == outSize &&
(vtkDataObject::GetGlobalReleaseDataFlag() ||
inInfo->Get(vtkDemandDrivenPipeline::RELEASE_DATA())))
{
// pass the data
output->GetPointData()->PassData(input->GetPointData());
output->SetExtent(outExt);
}
else
{
output->SetExtent(outExt);
output->AllocateScalars(outInfo);
this->CopyData(input, output, outExt);
}
return 1;
}
void vtkImageInPlaceFilter::CopyData(vtkImageData* inData, vtkImageData* outData, int* outExt)
{
char* inPtr = static_cast<char*>(inData->GetScalarPointerForExtent(outExt));
char* outPtr = static_cast<char*>(outData->GetScalarPointerForExtent(outExt));
int rowLength, size;
vtkIdType inIncX, inIncY, inIncZ;
vtkIdType outIncX, outIncY, outIncZ;
int idxY, idxZ, maxY, maxZ;
rowLength = (outExt[1] - outExt[0] + 1) * inData->GetNumberOfScalarComponents();
size = inData->GetScalarSize();
rowLength *= size;
maxY = outExt[3] - outExt[2];
maxZ = outExt[5] - outExt[4];
// Get increments to march through data
inData->GetContinuousIncrements(outExt, inIncX, inIncY, inIncZ);
outData->GetContinuousIncrements(outExt, outIncX, outIncY, outIncZ);
// adjust increments for this loop
inIncY = inIncY * size + rowLength;
outIncY = outIncY * size + rowLength;
inIncZ *= size;
outIncZ *= size;
// Loop through output pixels
for (idxZ = 0; idxZ <= maxZ; idxZ++)
{
for (idxY = 0; idxY <= maxY; idxY++)
{
memcpy(outPtr, inPtr, rowLength);
outPtr += outIncY;
inPtr += inIncY;
}
outPtr += outIncZ;
inPtr += inIncZ;
}
}
//------------------------------------------------------------------------------
void vtkImageInPlaceFilter::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
VTK_ABI_NAMESPACE_END
|
