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comparison Framework/Orthanc/Core/Images/ImageAccessor.cpp @ 1:2dbe613f6c93

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add orthanc core
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 14 Oct 2016 15:39:01 +0200
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0:351ab0da0150 1:2dbe613f6c93
1 /**
2 * Orthanc - A Lightweight, RESTful DICOM Store
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 *
6 * This program is free software: you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation, either version 3 of the
9 * License, or (at your option) any later version.
10 *
11 * In addition, as a special exception, the copyright holders of this
12 * program give permission to link the code of its release with the
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
14 * that use the same license as the "OpenSSL" library), and distribute
15 * the linked executables. You must obey the GNU General Public License
16 * in all respects for all of the code used other than "OpenSSL". If you
17 * modify file(s) with this exception, you may extend this exception to
18 * your version of the file(s), but you are not obligated to do so. If
19 * you do not wish to do so, delete this exception statement from your
20 * version. If you delete this exception statement from all source files
21 * in the program, then also delete it here.
22 *
23 * This program is distributed in the hope that it will be useful, but
24 * WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
26 * General Public License for more details.
27 *
28 * You should have received a copy of the GNU General Public License
29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
30 **/
31
32
33 #include "../PrecompiledHeaders.h"
34 #include "ImageAccessor.h"
35
36 #include "../Logging.h"
37 #include "../OrthancException.h"
38 #include "../ChunkedBuffer.h"
39
40 #include <stdint.h>
41 #include <cassert>
42 #include <boost/lexical_cast.hpp>
43
44
45
46 namespace Orthanc
47 {
48 template <typename PixelType>
49 static void ToMatlabStringInternal(ChunkedBuffer& target,
50 const ImageAccessor& source)
51 {
52 target.AddChunk("double([ ");
53
54 for (unsigned int y = 0; y < source.GetHeight(); y++)
55 {
56 const PixelType* p = reinterpret_cast<const PixelType*>(source.GetConstRow(y));
57
58 std::string s;
59 if (y > 0)
60 {
61 s = "; ";
62 }
63
64 s.reserve(source.GetWidth() * 8);
65
66 for (unsigned int x = 0; x < source.GetWidth(); x++, p++)
67 {
68 s += boost::lexical_cast<std::string>(static_cast<double>(*p)) + " ";
69 }
70
71 target.AddChunk(s);
72 }
73
74 target.AddChunk("])");
75 }
76
77
78 static void RGB24ToMatlabString(ChunkedBuffer& target,
79 const ImageAccessor& source)
80 {
81 assert(source.GetFormat() == PixelFormat_RGB24);
82
83 target.AddChunk("double(permute(reshape([ ");
84
85 for (unsigned int y = 0; y < source.GetHeight(); y++)
86 {
87 const uint8_t* p = reinterpret_cast<const uint8_t*>(source.GetConstRow(y));
88
89 std::string s;
90 s.reserve(source.GetWidth() * 3 * 8);
91
92 for (unsigned int x = 0; x < 3 * source.GetWidth(); x++, p++)
93 {
94 s += boost::lexical_cast<std::string>(static_cast<int>(*p)) + " ";
95 }
96
97 target.AddChunk(s);
98 }
99
100 target.AddChunk("], [ 3 " + boost::lexical_cast<std::string>(source.GetHeight()) +
101 " " + boost::lexical_cast<std::string>(source.GetWidth()) + " ]), [ 3 2 1 ]))");
102 }
103
104
105 void* ImageAccessor::GetBuffer() const
106 {
107 if (readOnly_)
108 {
109 #if ORTHANC_ENABLE_LOGGING == 1
110 LOG(ERROR) << "Trying to write on a read-only image";
111 #endif
112
113 throw OrthancException(ErrorCode_ReadOnly);
114 }
115
116 return buffer_;
117 }
118
119
120 const void* ImageAccessor::GetConstRow(unsigned int y) const
121 {
122 if (buffer_ != NULL)
123 {
124 return buffer_ + y * pitch_;
125 }
126 else
127 {
128 return NULL;
129 }
130 }
131
132
133 void* ImageAccessor::GetRow(unsigned int y) const
134 {
135 if (readOnly_)
136 {
137 #if ORTHANC_ENABLE_LOGGING == 1
138 LOG(ERROR) << "Trying to write on a read-only image";
139 #endif
140
141 throw OrthancException(ErrorCode_ReadOnly);
142 }
143
144 if (buffer_ != NULL)
145 {
146 return buffer_ + y * pitch_;
147 }
148 else
149 {
150 return NULL;
151 }
152 }
153
154
155 void ImageAccessor::AssignEmpty(PixelFormat format)
156 {
157 readOnly_ = false;
158 format_ = format;
159 width_ = 0;
160 height_ = 0;
161 pitch_ = 0;
162 buffer_ = NULL;
163 }
164
165
166 void ImageAccessor::AssignReadOnly(PixelFormat format,
167 unsigned int width,
168 unsigned int height,
169 unsigned int pitch,
170 const void *buffer)
171 {
172 readOnly_ = true;
173 format_ = format;
174 width_ = width;
175 height_ = height;
176 pitch_ = pitch;
177 buffer_ = reinterpret_cast<uint8_t*>(const_cast<void*>(buffer));
178
179 if (GetBytesPerPixel() * width_ > pitch_)
180 {
181 throw OrthancException(ErrorCode_ParameterOutOfRange);
182 }
183 }
184
185
186 void ImageAccessor::AssignWritable(PixelFormat format,
187 unsigned int width,
188 unsigned int height,
189 unsigned int pitch,
190 void *buffer)
191 {
192 readOnly_ = false;
193 format_ = format;
194 width_ = width;
195 height_ = height;
196 pitch_ = pitch;
197 buffer_ = reinterpret_cast<uint8_t*>(buffer);
198
199 if (GetBytesPerPixel() * width_ > pitch_)
200 {
201 throw OrthancException(ErrorCode_ParameterOutOfRange);
202 }
203 }
204
205
206 void ImageAccessor::ToMatlabString(std::string& target) const
207 {
208 ChunkedBuffer buffer;
209
210 switch (GetFormat())
211 {
212 case PixelFormat_Grayscale8:
213 ToMatlabStringInternal<uint8_t>(buffer, *this);
214 break;
215
216 case PixelFormat_Grayscale16:
217 ToMatlabStringInternal<uint16_t>(buffer, *this);
218 break;
219
220 case PixelFormat_SignedGrayscale16:
221 ToMatlabStringInternal<int16_t>(buffer, *this);
222 break;
223
224 case PixelFormat_Float32:
225 ToMatlabStringInternal<float>(buffer, *this);
226 break;
227
228 case PixelFormat_RGB24:
229 RGB24ToMatlabString(buffer, *this);
230 break;
231
232 default:
233 throw OrthancException(ErrorCode_NotImplemented);
234 }
235
236 buffer.Flatten(target);
237 }
238
239
240
241 ImageAccessor ImageAccessor::GetRegion(unsigned int x,
242 unsigned int y,
243 unsigned int width,
244 unsigned int height) const
245 {
246 if (x + width > width_ ||
247 y + height > height_)
248 {
249 throw OrthancException(ErrorCode_ParameterOutOfRange);
250 }
251
252 ImageAccessor result;
253
254 if (width == 0 ||
255 height == 0)
256 {
257 result.AssignWritable(format_, 0, 0, 0, NULL);
258 }
259 else
260 {
261 uint8_t* p = (buffer_ +
262 y * pitch_ +
263 x * GetBytesPerPixel());
264
265 if (readOnly_)
266 {
267 result.AssignReadOnly(format_, width, height, pitch_, p);
268 }
269 else
270 {
271 result.AssignWritable(format_, width, height, pitch_, p);
272 }
273 }
274
275 return result;
276 }
277
278
279 void ImageAccessor::SetFormat(PixelFormat format)
280 {
281 if (readOnly_)
282 {
283 #if ORTHANC_ENABLE_LOGGING == 1
284 LOG(ERROR) << "Trying to modify the format of a read-only image";
285 #endif
286 throw OrthancException(ErrorCode_ReadOnly);
287 }
288
289 if (::Orthanc::GetBytesPerPixel(format) != ::Orthanc::GetBytesPerPixel(format_))
290 {
291 throw OrthancException(ErrorCode_IncompatibleImageFormat);
292 }
293
294 format_ = format;
295 }
296 }