Mercurial > hg > orthanc-wsi
annotate Framework/Enumerations.cpp @ 175:e3cbf890b588
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 31 Jan 2020 17:44:03 +0100 |
parents | 6b8ccfc02051 |
children | c38811bf2992 |
rev | line source |
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0 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
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 Affero General Public License | |
9 * as published by the Free Software Foundation, either version 3 of | |
10 * the License, or (at your option) any later version. | |
11 * | |
12 * This program is distributed in the hope that it will be useful, but | |
13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 * Affero General Public License for more details. | |
16 * | |
17 * You should have received a copy of the GNU Affero General Public License | |
18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 **/ | |
20 | |
21 | |
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22 #include "PrecompiledHeadersWSI.h" |
0 | 23 #include "Enumerations.h" |
24 | |
25 #include "Jpeg2000Reader.h" | |
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26 #include <Core/OrthancException.h> |
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27 #include <Core/SystemToolbox.h> |
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28 #include <Core/Toolbox.h> |
0 | 29 |
30 #include <string.h> | |
31 #include <boost/algorithm/string/predicate.hpp> | |
32 | |
33 #define HEADER(s) (const void*) (s), sizeof(s)-1 | |
34 | |
35 namespace OrthancWSI | |
36 { | |
37 const char* EnumerationToString(ImageCompression compression) | |
38 { | |
39 switch (compression) | |
40 { | |
41 case ImageCompression_Unknown: | |
42 return "Unknown"; | |
43 | |
44 case ImageCompression_None: | |
45 return "Raw image"; | |
46 | |
47 case ImageCompression_Png: | |
48 return "PNG"; | |
49 | |
50 case ImageCompression_Jpeg: | |
51 return "JPEG"; | |
52 | |
53 case ImageCompression_Jpeg2000: | |
54 return "JPEG2000"; | |
55 | |
56 case ImageCompression_Tiff: | |
57 return "TIFF"; | |
58 | |
59 case ImageCompression_Dicom: | |
60 return "DICOM"; | |
61 | |
62 default: | |
63 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
64 } | |
65 } | |
66 | |
67 | |
68 static bool MatchHeader(const void* actual, | |
69 size_t actualSize, | |
70 const void* expected, | |
71 size_t expectedSize) | |
72 { | |
73 if (actualSize < expectedSize) | |
74 { | |
75 return false; | |
76 } | |
77 else | |
78 { | |
79 return memcmp(actual, expected, expectedSize) == 0; | |
80 } | |
81 } | |
82 | |
83 | |
84 ImageCompression DetectFormatFromFile(const std::string& path) | |
85 { | |
86 std::string header; | |
43 | 87 Orthanc::SystemToolbox::ReadHeader(header, path, 256); |
0 | 88 |
89 ImageCompression tmp = DetectFormatFromMemory(header.c_str(), header.size()); | |
90 if (tmp != ImageCompression_Unknown) | |
91 { | |
92 return tmp; | |
93 } | |
94 | |
95 // Cannot detect the format using the header, fallback to the use | |
96 // of the filename extension | |
97 | |
98 std::string lower; | |
99 Orthanc::Toolbox::ToLowerCase(lower, path); | |
100 | |
101 if (boost::algorithm::ends_with(lower, ".jpeg") || | |
102 boost::algorithm::ends_with(lower, ".jpg")) | |
103 { | |
104 return ImageCompression_Jpeg; | |
105 } | |
106 | |
107 if (boost::algorithm::ends_with(lower, ".png")) | |
108 { | |
109 return ImageCompression_Png; | |
110 } | |
111 | |
112 if (boost::algorithm::ends_with(lower, ".tiff") || | |
113 boost::algorithm::ends_with(lower, ".tif")) | |
114 { | |
115 return ImageCompression_Tiff; | |
116 } | |
117 | |
118 if (boost::algorithm::ends_with(lower, ".jp2") || | |
119 boost::algorithm::ends_with(lower, ".j2k")) | |
120 { | |
121 return ImageCompression_Jpeg2000; | |
122 } | |
123 | |
124 if (boost::algorithm::ends_with(lower, ".dcm")) | |
125 { | |
126 return ImageCompression_Dicom; | |
127 } | |
128 | |
129 return ImageCompression_Unknown; | |
130 } | |
131 | |
132 | |
133 ImageCompression DetectFormatFromMemory(const void* buffer, | |
134 size_t size) | |
135 { | |
136 if (MatchHeader(buffer, size, HEADER("\377\330\377"))) | |
137 { | |
138 return ImageCompression_Jpeg; | |
139 } | |
140 | |
141 if (MatchHeader(buffer, size, HEADER("\xff\x4f\xff\x51")) || | |
142 MatchHeader(buffer, size, HEADER("\x00\x00\x00\x0c\x6a\x50\x20\x20\x0d\x0a\x87\x0a"))) | |
143 { | |
144 return ImageCompression_Jpeg2000; | |
145 } | |
146 | |
147 if (MatchHeader(buffer, size, HEADER("\211PNG\r\n\032\n"))) | |
148 { | |
149 return ImageCompression_Png; | |
150 } | |
151 | |
152 if (MatchHeader(buffer, size, HEADER("\115\115\000\052")) || | |
153 MatchHeader(buffer, size, HEADER("\111\111\052\000")) || | |
154 MatchHeader(buffer, size, HEADER("\115\115\000\053\000\010\000\000")) || | |
155 MatchHeader(buffer, size, HEADER("\111\111\053\000\010\000\000\000"))) | |
156 { | |
157 return ImageCompression_Tiff; | |
158 } | |
159 | |
160 if (size >= 128 + 4 && | |
161 MatchHeader(reinterpret_cast<const uint8_t*>(buffer) + 128, size - 128, HEADER("DICM"))) | |
162 { | |
163 bool ok = true; | |
164 for (size_t i = 0; ok && i < 128; i++) | |
165 { | |
166 if (reinterpret_cast<const uint8_t*>(buffer)[i] != 0) | |
167 { | |
168 ok = false; | |
169 } | |
170 } | |
171 | |
172 if (ok) | |
173 { | |
174 return ImageCompression_Dicom; | |
175 } | |
176 } | |
177 | |
178 Jpeg2000Format jpeg2000 = Jpeg2000Reader::DetectFormatFromMemory(buffer, size); | |
179 if (jpeg2000 == Jpeg2000Format_JP2 || | |
180 jpeg2000 == Jpeg2000Format_J2K) | |
181 { | |
182 return ImageCompression_Jpeg2000; | |
183 } | |
184 | |
185 return ImageCompression_Unknown; | |
186 } | |
187 } |