Mercurial > hg > orthanc
annotate Core/DicomFormat/DicomIntegerPixelAccessor.cpp @ 3828:3d1bb2193832
fix build on os x
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 10 Apr 2020 16:35:41 +0200 |
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0 | 1 /** |
62 | 2 * Orthanc - A Lightweight, RESTful DICOM Store |
1900 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium |
0 | 6 * |
7 * This program is free software: you can redistribute it and/or | |
8 * modify it under the terms of the GNU General Public License as | |
9 * published by the Free Software Foundation, either version 3 of the | |
10 * License, or (at your option) any later version. | |
136 | 11 * |
12 * In addition, as a special exception, the copyright holders of this | |
13 * program give permission to link the code of its release with the | |
14 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
15 * that use the same license as the "OpenSSL" library), and distribute | |
16 * the linked executables. You must obey the GNU General Public License | |
17 * in all respects for all of the code used other than "OpenSSL". If you | |
18 * modify file(s) with this exception, you may extend this exception to | |
19 * your version of the file(s), but you are not obligated to do so. If | |
20 * you do not wish to do so, delete this exception statement from your | |
21 * version. If you delete this exception statement from all source files | |
22 * in the program, then also delete it here. | |
0 | 23 * |
24 * This program is distributed in the hope that it will be useful, but | |
25 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
27 * General Public License for more details. | |
28 * | |
29 * You should have received a copy of the GNU General Public License | |
30 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
31 **/ | |
32 | |
33 | |
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34 #include "../PrecompiledHeaders.h" |
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35 |
6 | 36 #ifndef NOMINMAX |
2 | 37 #define NOMINMAX |
6 | 38 #endif |
39 | |
627 | 40 #include "DicomIntegerPixelAccessor.h" |
41 | |
79 | 42 #include "../OrthancException.h" |
0 | 43 #include <boost/lexical_cast.hpp> |
2 | 44 #include <limits> |
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45 #include <cassert> |
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46 #include <stdio.h> |
0 | 47 |
62 | 48 namespace Orthanc |
0 | 49 { |
50 DicomIntegerPixelAccessor::DicomIntegerPixelAccessor(const DicomMap& values, | |
51 const void* pixelData, | |
52 size_t size) : | |
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53 information_(values), |
0 | 54 pixelData_(pixelData), |
55 size_(size) | |
56 { | |
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57 if (information_.GetBitsAllocated() > 32 || |
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58 information_.GetBitsStored() >= 32) |
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59 { |
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60 // Not available, as the accessor internally uses int32_t values |
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61 throw OrthancException(ErrorCode_NotImplemented); |
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62 } |
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63 |
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64 frame_ = 0; |
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65 frameOffset_ = information_.GetFrameSize(); |
0 | 66 |
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67 if (information_.GetNumberOfFrames() * frameOffset_ > size) |
0 | 68 { |
319 | 69 throw OrthancException(ErrorCode_BadFileFormat); |
0 | 70 } |
71 | |
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72 if (information_.IsSigned()) |
0 | 73 { |
537 | 74 // Pixels are signed |
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75 mask_ = (1 << (information_.GetBitsStored() - 1)) - 1; |
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76 signMask_ = (1 << (information_.GetBitsStored() - 1)); |
0 | 77 } |
78 else | |
79 { | |
537 | 80 // Pixels are unsigned |
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81 mask_ = (1 << information_.GetBitsStored()) - 1; |
0 | 82 signMask_ = 0; |
83 } | |
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84 |
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85 if (information_.IsPlanar()) |
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86 { |
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87 /** |
857 | 88 * Each color plane shall be sent contiguously. For RGB images, |
89 * this means the order of the pixel values sent is R1, R2, R3, | |
90 * ..., G1, G2, G3, ..., B1, B2, B3, etc. | |
91 **/ | |
860 | 92 rowOffset_ = information_.GetWidth() * information_.GetBytesPerValue(); |
857 | 93 } |
94 else | |
95 { | |
96 /** | |
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97 * The sample values for the first pixel are followed by the |
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98 * sample values for the second pixel, etc. For RGB images, this |
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99 * means the order of the pixel values sent shall be R1, G1, B1, |
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100 * R2, G2, B2, ..., etc. |
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101 **/ |
860 | 102 rowOffset_ = information_.GetWidth() * information_.GetBytesPerValue() * information_.GetChannelCount(); |
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103 } |
0 | 104 } |
105 | |
106 | |
107 void DicomIntegerPixelAccessor::GetExtremeValues(int32_t& min, | |
108 int32_t& max) const | |
109 { | |
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110 if (information_.GetHeight() == 0 || information_.GetWidth() == 0) |
0 | 111 { |
112 min = max = 0; | |
113 return; | |
114 } | |
115 | |
116 min = std::numeric_limits<int32_t>::max(); | |
117 max = std::numeric_limits<int32_t>::min(); | |
118 | |
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119 for (unsigned int y = 0; y < information_.GetHeight(); y++) |
0 | 120 { |
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121 for (unsigned int x = 0; x < information_.GetWidth(); x++) |
0 | 122 { |
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123 for (unsigned int c = 0; c < information_.GetChannelCount(); c++) |
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124 { |
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125 int32_t v = GetValue(x, y); |
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126 if (v < min) |
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127 min = v; |
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128 if (v > max) |
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129 max = v; |
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130 } |
0 | 131 } |
132 } | |
133 } | |
134 | |
135 | |
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136 int32_t DicomIntegerPixelAccessor::GetValue(unsigned int x, |
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137 unsigned int y, |
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138 unsigned int channel) const |
0 | 139 { |
857 | 140 assert(x < information_.GetWidth() && |
141 y < information_.GetHeight() && | |
142 channel < information_.GetChannelCount()); | |
0 | 143 |
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144 const uint8_t* pixel = reinterpret_cast<const uint8_t*>(pixelData_) + |
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145 y * rowOffset_ + frame_ * frameOffset_; |
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146 |
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147 // http://dicom.nema.org/medical/dicom/current/output/html/part03.html#sect_C.7.6.3.1.3 |
857 | 148 if (information_.IsPlanar()) |
149 { | |
150 /** | |
151 * Each color plane shall be sent contiguously. For RGB images, | |
152 * this means the order of the pixel values sent is R1, R2, R3, | |
153 * ..., G1, G2, G3, ..., B1, B2, B3, etc. | |
154 **/ | |
155 assert(frameOffset_ % information_.GetChannelCount() == 0); | |
860 | 156 pixel += channel * frameOffset_ / information_.GetChannelCount() + x * information_.GetBytesPerValue(); |
857 | 157 } |
158 else | |
368
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159 { |
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160 /** |
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161 * The sample values for the first pixel are followed by the |
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162 * sample values for the second pixel, etc. For RGB images, this |
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163 * means the order of the pixel values sent shall be R1, G1, B1, |
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164 * R2, G2, B2, ..., etc. |
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165 **/ |
860 | 166 pixel += channel * information_.GetBytesPerValue() + x * information_.GetChannelCount() * information_.GetBytesPerValue(); |
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167 } |
0 | 168 |
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169 uint32_t v; |
0 | 170 v = pixel[0]; |
860 | 171 if (information_.GetBytesPerValue() >= 2) |
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172 v = v + (static_cast<uint32_t>(pixel[1]) << 8); |
860 | 173 if (information_.GetBytesPerValue() >= 3) |
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174 v = v + (static_cast<uint32_t>(pixel[2]) << 16); |
860 | 175 if (information_.GetBytesPerValue() >= 4) |
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176 v = v + (static_cast<uint32_t>(pixel[3]) << 24); |
0 | 177 |
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178 v = v >> information_.GetShift(); |
0 | 179 |
180 if (v & signMask_) | |
181 { | |
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182 // Signed value |
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183 // http://en.wikipedia.org/wiki/Two%27s_complement#Subtraction_from_2N |
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184 return -static_cast<int32_t>(mask_) + static_cast<int32_t>(v & mask_) - 1; |
0 | 185 } |
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186 else |
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187 { |
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188 // Unsigned value |
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189 return static_cast<int32_t>(v & mask_); |
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190 } |
0 | 191 } |
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192 |
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193 |
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194 void DicomIntegerPixelAccessor::SetCurrentFrame(unsigned int frame) |
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195 { |
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196 if (frame >= information_.GetNumberOfFrames()) |
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197 { |
62 | 198 throw OrthancException(ErrorCode_ParameterOutOfRange); |
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199 } |
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200 |
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201 frame_ = frame; |
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202 } |
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203 |
0 | 204 } |