File: CiftiMatrix.cxx

package info (click to toggle)
caret 5.6.4~dfsg.1-3
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd, wheezy
  • size: 31,904 kB
  • ctags: 28,901
  • sloc: cpp: 378,050; python: 6,718; ansic: 5,507; makefile: 333; sh: 46
file content (194 lines) | stat: -rw-r--r-- 4,908 bytes parent folder | download
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
/*LICENSE_START*/
/*
 *  Copyright 1995-2011 Washington University School of Medicine
 *
 *  http://brainmap.wustl.edu
 *
 *  This file is part of CARET.
 *
 *  CARET is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  CARET is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with CARET; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */
/*LICENSE_END*/
#include <CiftiMatrix.h>
#ifdef Q_OS_WIN32
#include <io.h>
#else //not Q_OST_WIN32
#include <unistd.h>
#endif //ifdef Q_OS_WIN32


CiftiMatrix::CiftiMatrix(QFile &file, std::vector<int> &dimensions,CACHE_LEVEL clevel) throw (CiftiFileException)
{
   init();
   m_clevel = clevel;
   readMatrix(file, dimensions);   
}

CiftiMatrix::CiftiMatrix(const QString &fileName, std::vector<int> &dimensions, unsigned long long offset, CACHE_LEVEL clevel) throw (CiftiFileException)
{
   init();
   m_clevel = clevel;
   readMatrix(fileName, dimensions, offset);
}

CiftiMatrix::CiftiMatrix(const QString &fileName, std::vector <int> &dimensions, CACHE_LEVEL clevel) throw (CiftiFileException)
{
   init();
   m_clevel = clevel;
   readMatrix(fileName, dimensions);
}

CiftiMatrix::CiftiMatrix() throw (CiftiFileException)
{
   init();   
}

CiftiMatrix::~CiftiMatrix()
{
   freeMatrix();
}

void CiftiMatrix::swapByteOrder()
{
   CiftiByteSwap::swapBytes(m_matrix,m_length);   
}

//gets the entire matrix, depending on the copy data preferences,
//either copies all of the data
void CiftiMatrix::getMatrixData(float *&matrix, std::vector <int> &dimensions)
{   
   dimensions = m_dimensions;
   if(m_copyData)
   {
      matrix = new float [m_length];
      memcpy((char *)matrix,(char *)m_matrix,m_length*4);
   }
   else
   {
      matrix = m_matrix;
   }   
}

void CiftiMatrix::setMatrixData(float *data, std::vector <int> &dimensions)
{
   freeMatrix();
   setDimensions(dimensions);
   
   if(m_copyData)
   {
      m_matrix = new float[m_length];
      memcpy((char *)m_matrix,(char *)data, m_length*4);      
   }
   else
   {
      m_matrix = data;
   }
}

void CiftiMatrix::setDimensions(std::vector <int> dimensions)
{
   m_dimensions = dimensions;
   m_length = m_dimensions[0];
   for(unsigned int i =1;i<m_dimensions.size();i++)
   {
      m_length*=dimensions[i];
   }
}

void CiftiMatrix::setCopyData(bool copyData)
{
   m_copyData = copyData;
}

bool CiftiMatrix::getCopyData()
{
   return m_copyData;
}
void CiftiMatrix::init()
{
   m_clevel = IN_MEMORY;
   m_copyData = false;
   initMatrix();
}

void CiftiMatrix::initMatrix()
{
   m_dimensions.clear();
   m_matrix = NULL;
   m_length = 0;
}

void CiftiMatrix::freeMatrix()
{
   if(m_matrix) delete m_matrix;
   initMatrix();
}

void CiftiMatrix::readMatrix(const QString &fileName, std::vector<int> &dimensions)
{
   readMatrix(fileName, dimensions, 0);   
}

void CiftiMatrix::readMatrix(const QString &fileName, std::vector<int> &dimensions, unsigned long long offset)
{
   QFile ciftiFile;
   ciftiFile.setFileName(fileName);   
   if(m_clevel == IN_MEMORY)
   {
      ciftiFile.open(QIODevice::ReadOnly);
      if(offset) ciftiFile.seek(offset);
      readMatrix(ciftiFile,dimensions);
   }
   else if(m_clevel == ON_DISK)
   {
      CiftiFileException("ON_DISK file IO mode not yet implemented.");
      ciftiFile.open(QIODevice::ReadOnly);
      if(offset) ciftiFile.seek(offset);
   }
}

void CiftiMatrix::readMatrix(QFile &file, std::vector<int> &dimensions)
{
   freeMatrix();
   setDimensions(dimensions);
   
   if(m_clevel == IN_MEMORY)
   {
      m_matrix = new float [m_length];
      if(!m_matrix) CiftiFileException("Error allocating Cifti Matrix.");
      int fd = file.handle();
      size_t bytes_read = 0;
      size_t bytes_needed = m_length * 4;
      char * position = (char *)m_matrix;
      while(bytes_read < bytes_needed)
      {
         position = (char *)m_matrix + bytes_read;
         bytes_read += read(fd, (void *)position, bytes_needed-bytes_read);         
      }
      //unsigned long long bytes_read = file.readData((char *)(m_matrix),m_length);
      //bytes_read = file.read((char *)(m_matrix),1500000000);
      if(bytes_read != m_length*4) CiftiFileException("Error reading matrix from Cifti File.");
   }
   else if(m_clevel == ON_DISK)
   {
      CiftiFileException("ON_DISK file IO mode not yet implemented.");
   }   
}

void CiftiMatrix::writeMatrix(QFile &file)
{   
   file.write((char *)m_matrix,m_length*4);
}