Mercurial > hg > orthanc
annotate Core/DicomFormat/DicomImageInformation.cpp @ 1102:ce6386b37afd
avoid unnecessary exceptions on Orthanc startup
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Thu, 07 Aug 2014 10:51:35 +0200 |
| parents | 3c0d0836f704 |
| children | f5b0207967bc |
| rev | line source |
|---|---|
| 853 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege, | |
| 4 * 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 | |
| 35 #ifndef NOMINMAX | |
| 36 #define NOMINMAX | |
| 37 #endif | |
| 38 | |
| 39 #include "DicomImageInformation.h" | |
| 40 | |
| 41 #include "../OrthancException.h" | |
| 42 #include <boost/lexical_cast.hpp> | |
| 43 #include <limits> | |
| 44 #include <cassert> | |
| 45 #include <stdio.h> | |
| 46 | |
| 47 namespace Orthanc | |
| 48 { | |
| 49 DicomImageInformation::DicomImageInformation(const DicomMap& values) | |
| 50 { | |
| 51 unsigned int pixelRepresentation; | |
| 52 unsigned int planarConfiguration = 0; | |
| 53 | |
| 54 try | |
| 55 { | |
| 56 width_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_COLUMNS).AsString()); | |
| 57 height_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_ROWS).AsString()); | |
| 58 bitsAllocated_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_BITS_ALLOCATED).AsString()); | |
| 59 | |
| 60 try | |
| 61 { | |
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62 samplesPerPixel_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_SAMPLES_PER_PIXEL).AsString()); |
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63 } |
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64 catch (OrthancException&) |
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65 { |
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66 samplesPerPixel_ = 1; // Assume 1 color channel |
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67 } |
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68 |
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69 try |
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70 { |
| 853 | 71 bitsStored_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_BITS_STORED).AsString()); |
| 72 } | |
| 73 catch (OrthancException&) | |
| 74 { | |
| 75 bitsStored_ = bitsAllocated_; | |
| 76 } | |
| 77 | |
| 78 try | |
| 79 { | |
| 80 highBit_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_HIGH_BIT).AsString()); | |
| 81 } | |
| 82 catch (OrthancException&) | |
| 83 { | |
| 84 highBit_ = bitsStored_ - 1; | |
| 85 } | |
| 86 | |
| 87 try | |
| 88 { | |
| 89 pixelRepresentation = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_PIXEL_REPRESENTATION).AsString()); | |
| 90 } | |
| 91 catch (OrthancException&) | |
| 92 { | |
| 93 pixelRepresentation = 0; // Assume unsigned pixels | |
| 94 } | |
| 95 | |
| 96 if (samplesPerPixel_ > 1) | |
| 97 { | |
| 98 // The "Planar Configuration" is only set when "Samples per Pixels" is greater than 1 | |
| 99 // https://www.dabsoft.ch/dicom/3/C.7.6.3.1.3/ | |
| 100 try | |
| 101 { | |
| 102 planarConfiguration = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_PLANAR_CONFIGURATION).AsString()); | |
| 103 } | |
| 104 catch (OrthancException&) | |
| 105 { | |
| 106 planarConfiguration = 0; // Assume interleaved color channels | |
| 107 } | |
| 108 } | |
| 109 } | |
| 110 catch (boost::bad_lexical_cast&) | |
| 111 { | |
| 112 throw OrthancException(ErrorCode_NotImplemented); | |
| 113 } | |
| 114 catch (OrthancException&) | |
| 115 { | |
| 116 throw OrthancException(ErrorCode_NotImplemented); | |
| 117 } | |
| 118 | |
| 119 try | |
| 120 { | |
| 121 numberOfFrames_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_NUMBER_OF_FRAMES).AsString()); | |
| 122 } | |
| 123 catch (OrthancException) | |
| 124 { | |
| 125 // If the tag "NumberOfFrames" is absent, assume there is a single frame | |
| 126 numberOfFrames_ = 1; | |
| 127 } | |
| 857 | 128 catch (boost::bad_lexical_cast&) |
| 853 | 129 { |
| 130 throw OrthancException(ErrorCode_NotImplemented); | |
| 131 } | |
| 132 | |
| 133 if ((bitsAllocated_ != 8 && bitsAllocated_ != 16 && | |
| 134 bitsAllocated_ != 24 && bitsAllocated_ != 32) || | |
| 135 numberOfFrames_ == 0 || | |
| 136 (planarConfiguration != 0 && planarConfiguration != 1)) | |
| 137 { | |
| 138 throw OrthancException(ErrorCode_NotImplemented); | |
| 139 } | |
| 140 | |
| 141 if (bitsAllocated_ > 32 || | |
| 142 bitsStored_ >= 32) | |
| 143 { | |
| 144 // Not available, as the accessor internally uses int32_t values | |
| 145 throw OrthancException(ErrorCode_NotImplemented); | |
| 146 } | |
| 147 | |
| 148 if (samplesPerPixel_ == 0) | |
| 149 { | |
| 150 throw OrthancException(ErrorCode_NotImplemented); | |
| 151 } | |
| 152 | |
| 860 | 153 bytesPerValue_ = bitsAllocated_ / 8; |
| 853 | 154 |
| 155 isPlanar_ = (planarConfiguration != 0 ? true : false); | |
| 156 isSigned_ = (pixelRepresentation != 0 ? true : false); | |
| 157 } | |
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parents:
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158 |
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159 |
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160 bool DicomImageInformation::ExtractPixelFormat(PixelFormat& format) const |
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161 { |
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162 if (GetBitsStored() == 8 && GetChannelCount() == 1 && !IsSigned()) |
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parents:
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163 { |
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164 format = PixelFormat_Grayscale8; |
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165 return true; |
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166 } |
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167 |
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168 if (GetBitsStored() == 8 && GetChannelCount() == 3 && !IsSigned()) |
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parents:
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169 { |
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170 format = PixelFormat_RGB24; |
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171 return true; |
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parents:
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172 } |
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173 |
| 855 | 174 if (GetBitsAllocated() == 16 && GetChannelCount() == 1 && !IsSigned()) |
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parents:
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175 { |
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parents:
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176 format = PixelFormat_Grayscale16; |
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177 return true; |
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178 } |
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179 |
| 855 | 180 if (GetBitsAllocated() == 16 && GetChannelCount() == 1 && IsSigned()) |
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parents:
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181 { |
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182 format = PixelFormat_SignedGrayscale16; |
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183 return true; |
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parents:
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184 } |
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185 |
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186 return false; |
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ff530685e46a
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parents:
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187 } |
| 853 | 188 } |