forked from Kitware/VTK
-
Notifications
You must be signed in to change notification settings - Fork 26
/
vtkImageMirrorPad.cxx
256 lines (226 loc) · 7.43 KB
/
vtkImageMirrorPad.cxx
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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
/*=========================================================================
Program: Visualization Toolkit
Module: vtkImageMirrorPad.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 "vtkImageMirrorPad.h"
#include "vtkImageData.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkStreamingDemandDrivenPipeline.h"
vtkStandardNewMacro(vtkImageMirrorPad);
//----------------------------------------------------------------------------
// Just clip the request.
void vtkImageMirrorPad::ComputeInputUpdateExtent(int inExt[6],
int outExt[6],
int wExtent[6])
{
int idx;
// initialize inExt
memcpy(inExt,wExtent,6*sizeof(int));
// a simple approximation to the required extent
// basically get the whole extent for an axis unless a fully
// contained subset is being requested. If so then use that.
for (idx = 0; idx < 3; idx++)
{
if (outExt[idx*2] >= wExtent[idx*2] &&
outExt[idx*2+1] <= wExtent[idx*2+1])
{
inExt[idx*2] = outExt[idx*2];
inExt[idx*2+1] = outExt[idx*2+1];
}
}
}
//----------------------------------------------------------------------------
template <class T>
void vtkImageMirrorPadExecute(vtkImageMirrorPad *self,
vtkImageData *inData,
int *wExtent,
vtkImageData *outData, T *outPtr,
int outExt[6], int id)
{
int idxC, idxX, idxY, idxZ;
int maxX, maxY, maxZ;
vtkIdType inInc[3];
int inIncStart[3];
vtkIdType inIncX, inIncY, inIncZ;
vtkIdType outIncX, outIncY, outIncZ;
unsigned long count = 0;
unsigned long target;
int idx;
int inIdxStart[3];
int inIdx[3];
T *inPtr, *inPtrX, *inPtrY, *inPtrZ;
int maxC, inMaxC;
// find the region to loop over
inMaxC = inData->GetNumberOfScalarComponents();
maxC = outData->GetNumberOfScalarComponents();
maxX = outExt[1] - outExt[0];
maxY = outExt[3] - outExt[2];
maxZ = outExt[5] - outExt[4];
target = static_cast<unsigned long>((maxZ+1)*(maxY+1)/50.0);
target++;
// Get increments to march through data
inData->GetIncrements(inIncX, inIncY, inIncZ);
outData->GetContinuousIncrements(outExt, outIncX, outIncY, outIncZ);
// find the starting point
for (idx = 0; idx < 3; idx++)
{
inIdxStart[idx] = outExt[idx*2];
inIncStart[idx] = 1;
while (inIdxStart[idx] < wExtent[idx*2])
{
inIncStart[idx] = -inIncStart[idx];
inIdxStart[idx] = inIdxStart[idx] + (wExtent[idx*2+1] - wExtent[idx*2] + 1);
}
while (inIdxStart[idx] > wExtent[idx*2+1])
{
inIncStart[idx] = -inIncStart[idx];
inIdxStart[idx] = inIdxStart[idx] - (wExtent[idx*2+1] - wExtent[idx*2] + 1);
}
// if we are heading negative then we need to mirror the offset
if (inIncStart[idx] < 0)
{
inIdxStart[idx] = wExtent[idx*2+1] - inIdxStart[idx] + wExtent[idx*2];
}
}
inPtr = static_cast<T *>(inData->GetScalarPointer(inIdxStart[0], inIdxStart[1], inIdxStart[2]));
// Loop through ouput pixels
inPtrZ = inPtr;
inIdx[2] = inIdxStart[2];
inInc[2] = inIncStart[2];
for (idxZ = 0; idxZ <= maxZ; idxZ++)
{
inPtrY = inPtrZ;
inIdx[1] = inIdxStart[1];
inInc[1] = inIncStart[1];
for (idxY = 0; !self->AbortExecute && idxY <= maxY; idxY++)
{
inPtrX = inPtrY;
inIdx[0] = inIdxStart[0];
inInc[0] = inIncStart[0];
if (!id)
{
if (!(count%target))
{
self->UpdateProgress(count/(50.0*target));
}
count++;
}
// if components are same much faster
if ((maxC == inMaxC) && (maxC == 1))
{
for (idxX = 0; idxX <= maxX; idxX++)
{
// Pixel operation
*outPtr = *inPtrX;
outPtr++;
inIdx[0] += inInc[0];
inPtrX = inPtrX + inInc[0]*inIncX;
if (inIdx[0] < wExtent[0] || inIdx[0] > wExtent[1])
{
inInc[0] *= -1;
inIdx[0] += inInc[0];
inPtrX = inPtrX + inInc[0]*inIncX;
}
}
}
else // components are not the same
{
for (idxX = 0; idxX <= maxX; idxX++)
{
for (idxC = 0; idxC < maxC; idxC++)
{
// Pixel operation
if (idxC < inMaxC)
{
*outPtr = *(inPtrX + idxC);
}
else
{
*outPtr = *(inPtrX + idxC%inMaxC);
}
outPtr++;
}
inIdx[0] += inInc[0];
inPtrX = inPtrX + inInc[0]*inIncX;
if (inIdx[0] < wExtent[0] || inIdx[0] > wExtent[1])
{
inInc[0] *= -1;
inIdx[0] += inInc[0];
inPtrX = inPtrX + inInc[0]*inIncX;
}
}
}
outPtr += outIncY;
inIdx[1] += inInc[1];
inPtrY = inPtrY + inInc[1]*inIncY;
if (inIdx[1] < wExtent[2] || inIdx[1] > wExtent[3])
{
inInc[1] *= -1;
inIdx[1] += inInc[1];
inPtrY = inPtrY + inInc[1]*inIncY;
}
}
outPtr += outIncZ;
inIdx[2] += inInc[2];
inPtrZ = inPtrZ + inInc[2]*inIncZ;
if (inIdx[2] < wExtent[4] || inIdx[2] > wExtent[5])
{
inInc[2] *= -1;
inIdx[2] += inInc[2];
inPtrZ = inPtrZ + inInc[2]*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 regions data types.
void vtkImageMirrorPad::ThreadedRequestData(
vtkInformation * vtkNotUsed( request ),
vtkInformationVector** inputVector,
vtkInformationVector * vtkNotUsed( outputVector ),
vtkImageData ***inData,
vtkImageData **outData,
int outExt[6], int id)
{
// return if nothing to do
if (outExt[1] < outExt[0] ||
outExt[3] < outExt[2] ||
outExt[5] < outExt[4])
{
return;
}
void *outPtr = outData[0]->GetScalarPointerForExtent(outExt);
// get the whole extent
int wExt[6];
vtkInformation *inInfo = inputVector[0]->GetInformationObject(0);
inInfo->Get(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT(),wExt);
// 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;
}
switch (inData[0][0]->GetScalarType())
{
vtkTemplateMacro(
vtkImageMirrorPadExecute(this, inData[0][0], wExt,
outData[0], static_cast<VTK_TT *>(outPtr),
outExt, id));
default:
vtkErrorMacro(<< "Execute: Unknown ScalarType");
return;
}
}