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
|
/*=========================================================================
Program: Visualization Toolkit
Module: vtkPImageWriter.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 "vtkPImageWriter.h"
#include "vtkObjectFactory.h"
#include "vtkPipelineSize.h"
#include "vtkImageData.h"
#include "vtkInformation.h"
#include "vtkAlgorithmOutput.h"
#include "vtkStreamingDemandDrivenPipeline.h"
#define vtkPIWCloseFile \
if (file && fileOpenedHere) \
{ \
this->WriteFileTrailer(file,cache); \
file->close(); \
delete file; \
file = NULL; \
} \
vtkStandardNewMacro(vtkPImageWriter);
#ifdef write
#undef write
#endif
#ifdef close
#undef close
#endif
//----------------------------------------------------------------------------
vtkPImageWriter::vtkPImageWriter()
{
// Set a default memory limit of a gibibyte
this->MemoryLimit = 1 * 1024 * 1024;
this->SizeEstimator = vtkPipelineSize::New();
}
//----------------------------------------------------------------------------
vtkPImageWriter::~vtkPImageWriter()
{
if (this->SizeEstimator)
{
this->SizeEstimator->Delete();
}
}
//----------------------------------------------------------------------------
void vtkPImageWriter::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
os << indent << "MemoryLimit (in kibibytes): " << this->MemoryLimit << "\n";
}
//----------------------------------------------------------------------------
// Breaks region into pieces with correct dimensionality.
void vtkPImageWriter::RecursiveWrite(int axis, vtkImageData *cache,
vtkInformation* inInfo,
ofstream *file)
{
int min, max, mid;
vtkImageData *data;
int fileOpenedHere = 0;
unsigned long inputMemorySize;
// if we need to open another slice, do it
if (!file && (axis + 1) == this->FileDimensionality)
{
// determine the name
if (this->FileName)
{
sprintf(this->InternalFileName,"%s",this->FileName);
}
else
{
if (this->FilePrefix)
{
sprintf(this->InternalFileName, this->FilePattern,
this->FilePrefix, this->FileNumber);
}
else
{
sprintf(this->InternalFileName, this->FilePattern,this->FileNumber);
}
}
// Open the file
#ifdef _WIN32
file = new ofstream(this->InternalFileName, ios::out | ios::binary);
#else
file = new ofstream(this->InternalFileName, ios::out);
#endif
fileOpenedHere = 1;
if (file->fail())
{
vtkErrorMacro("RecursiveWrite: Could not open file " <<
this->InternalFileName);
delete file;
return;
}
// Subclasses can write a header with this method call.
this->WriteFileHeader(file, cache, inInfo->Get(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT()));
++this->FileNumber;
}
// Get the pipeline information for the input
vtkAlgorithm *inAlg = this->GetInputAlgorithm();
// Set a hint not to combine with previous requests
inInfo->Set(
vtkStreamingDemandDrivenPipeline::UPDATE_EXTENT_INITIALIZED(),
VTK_UPDATE_EXTENT_REPLACE);
// Propagate the update extent so we can determine pipeline size
inAlg->PropagateUpdateExtent();
// Go back to the previous behaviour
inInfo->Set(
vtkStreamingDemandDrivenPipeline::UPDATE_EXTENT_INITIALIZED(),
VTK_UPDATE_EXTENT_COMBINE);
// Now we can ask how big the pipeline will be
inputMemorySize = this->SizeEstimator->GetEstimatedSize(this,0,0);
// will the current request fit into memory
// if so the just get the data and write it out
if ( inputMemorySize < this->MemoryLimit )
{
#ifndef NDEBUG
int *ext = inInfo->Get(vtkStreamingDemandDrivenPipeline::UPDATE_EXTENT());
#endif
vtkDebugMacro("Getting input extent: " << ext[0] << ", " << ext[1] << ", " << ext[2] << ", " << ext[3] << ", " << ext[4] << ", " << ext[5] << endl);
this->GetInputAlgorithm()->Update();
data = cache;
this->RecursiveWrite(axis,cache,data,inInfo,file);
vtkPIWCloseFile;
return;
}
// if the current request did not fit into memory
// the we will split the current axis
int* updateExtent = inInfo->Get(vtkStreamingDemandDrivenPipeline::UPDATE_EXTENT());
this->GetInput()->GetAxisUpdateExtent(axis, min, max, updateExtent);
vtkDebugMacro("Axes: " << axis << "(" << min << ", " << max
<< "), UpdateMemory: " << inputMemorySize
<< ", Limit: " << this->MemoryLimit << endl);
if (min == max)
{
if (axis > 0)
{
this->RecursiveWrite(axis - 1,cache, inInfo, file);
}
else
{
vtkWarningMacro("MemoryLimit too small for one pixel of information!!");
}
vtkPIWCloseFile;
return;
}
mid = (min + max) / 2;
int axisUpdateExtent[6];
// if it is the y axis then flip by default
if (axis == 1 && !this->FileLowerLeft)
{
// first half
cache->SetAxisUpdateExtent(axis, mid+1, max, updateExtent, axisUpdateExtent);
inInfo->Set(
vtkStreamingDemandDrivenPipeline::UPDATE_EXTENT(), axisUpdateExtent, 6);
this->RecursiveWrite(axis,cache,inInfo,file);
// second half
cache->SetAxisUpdateExtent(axis, min, mid, updateExtent, axisUpdateExtent);
inInfo->Set(
vtkStreamingDemandDrivenPipeline::UPDATE_EXTENT(), axisUpdateExtent, 6);
this->RecursiveWrite(axis,cache,inInfo,file);
}
else
{
// first half
cache->SetAxisUpdateExtent(axis, min, mid, updateExtent, axisUpdateExtent);
inInfo->Set(
vtkStreamingDemandDrivenPipeline::UPDATE_EXTENT(), axisUpdateExtent, 6);
this->RecursiveWrite(axis,cache,inInfo,file);
// second half
cache->SetAxisUpdateExtent(axis, mid+1, max, updateExtent, axisUpdateExtent);
inInfo->Set(
vtkStreamingDemandDrivenPipeline::UPDATE_EXTENT(), axisUpdateExtent, 6);
this->RecursiveWrite(axis,cache,inInfo,file);
}
// restore original extent
cache->SetAxisUpdateExtent(axis, min, max, updateExtent, axisUpdateExtent);
inInfo->Set(
vtkStreamingDemandDrivenPipeline::UPDATE_EXTENT(), axisUpdateExtent, 6);
// if we opened the file here, then we need to close it up
vtkPIWCloseFile;
}
|
