Mercurial > hg > orthanc
annotate OrthancFramework/Sources/Images/JpegWriter.cpp @ 5840:b24b61331566 find-refactoring tip
pagination: fixed compat with ODBC that does not support ExtendedFind
author | Alain Mazy <am@orthanc.team> |
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date | Mon, 21 Oct 2024 18:24:09 +0200 |
parents | f7adfb22e20e |
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rev | line source |
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1602 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
1900 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
1602 | 4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2023 Osimis S.A., Belgium |
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6 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium |
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7 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
1602 | 8 * |
9 * This program is free software: you can redistribute it and/or | |
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10 * modify it under the terms of the GNU Lesser General Public License |
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11 * as published by the Free Software Foundation, either version 3 of |
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12 * the License, or (at your option) any later version. |
1602 | 13 * |
14 * This program is distributed in the hope that it will be useful, but | |
15 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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17 * Lesser General Public License for more details. |
1602 | 18 * |
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19 * You should have received a copy of the GNU Lesser General Public |
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20 * License along with this program. If not, see |
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21 * <http://www.gnu.org/licenses/>. |
1602 | 22 **/ |
23 | |
24 | |
1604 | 25 #include "../PrecompiledHeaders.h" |
1602 | 26 #include "JpegWriter.h" |
27 | |
28 #include "../OrthancException.h" | |
29 #include "../Logging.h" | |
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30 #include "JpegErrorManager.h" |
1602 | 31 |
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32 #if ORTHANC_SANDBOXED == 0 |
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33 # include "../SystemToolbox.h" |
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34 #endif |
1604 | 35 |
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36 #include <stdlib.h> |
1602 | 37 #include <vector> |
38 | |
39 namespace Orthanc | |
40 { | |
41 static void GetLines(std::vector<uint8_t*>& lines, | |
42 unsigned int height, | |
43 unsigned int pitch, | |
44 PixelFormat format, | |
45 const void* buffer) | |
46 { | |
47 if (format != PixelFormat_Grayscale8 && | |
48 format != PixelFormat_RGB24) | |
49 { | |
50 throw OrthancException(ErrorCode_ParameterOutOfRange); | |
51 } | |
52 | |
53 lines.resize(height); | |
54 | |
55 uint8_t* base = const_cast<uint8_t*>(reinterpret_cast<const uint8_t*>(buffer)); | |
56 for (unsigned int y = 0; y < height; y++) | |
57 { | |
58 lines[y] = base + static_cast<intptr_t>(y) * static_cast<intptr_t>(pitch); | |
59 } | |
60 } | |
61 | |
62 | |
63 static void Compress(struct jpeg_compress_struct& cinfo, | |
64 std::vector<uint8_t*>& lines, | |
65 unsigned int width, | |
66 unsigned int height, | |
67 PixelFormat format, | |
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68 uint8_t quality) |
1602 | 69 { |
70 cinfo.image_width = width; | |
71 cinfo.image_height = height; | |
72 | |
73 switch (format) | |
74 { | |
75 case PixelFormat_Grayscale8: | |
76 cinfo.input_components = 1; | |
77 cinfo.in_color_space = JCS_GRAYSCALE; | |
78 break; | |
79 | |
80 case PixelFormat_RGB24: | |
81 cinfo.input_components = 3; | |
82 cinfo.in_color_space = JCS_RGB; | |
83 break; | |
84 | |
85 default: | |
86 throw OrthancException(ErrorCode_InternalError); | |
87 } | |
88 | |
89 jpeg_set_defaults(&cinfo); | |
2683 | 90 |
91 // The "static_cast" is necessary on OS X: | |
92 // https://github.com/simonfuhrmann/mve/issues/371 | |
93 jpeg_set_quality(&cinfo, quality, static_cast<boolean>(true)); | |
94 jpeg_start_compress(&cinfo, static_cast<boolean>(true)); | |
95 | |
1602 | 96 jpeg_write_scanlines(&cinfo, &lines[0], height); |
97 jpeg_finish_compress(&cinfo); | |
98 jpeg_destroy_compress(&cinfo); | |
99 } | |
100 | |
101 | |
4300 | 102 JpegWriter::JpegWriter() : quality_(90) |
103 { | |
104 } | |
105 | |
106 | |
1602 | 107 void JpegWriter::SetQuality(uint8_t quality) |
108 { | |
2223 | 109 if (quality == 0 || quality > 100) |
1602 | 110 { |
111 throw OrthancException(ErrorCode_ParameterOutOfRange); | |
112 } | |
113 | |
114 quality_ = quality; | |
115 } | |
116 | |
117 | |
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118 #if ORTHANC_SANDBOXED == 0 |
1916 | 119 void JpegWriter::WriteToFileInternal(const std::string& filename, |
120 unsigned int width, | |
121 unsigned int height, | |
122 unsigned int pitch, | |
123 PixelFormat format, | |
124 const void* buffer) | |
1602 | 125 { |
2140 | 126 FILE* fp = SystemToolbox::OpenFile(filename, FileMode_WriteBinary); |
1602 | 127 if (fp == NULL) |
128 { | |
2017 | 129 throw OrthancException(ErrorCode_CannotWriteFile); |
1602 | 130 } |
131 | |
132 std::vector<uint8_t*> lines; | |
133 GetLines(lines, height, pitch, format, buffer); | |
134 | |
135 struct jpeg_compress_struct cinfo; | |
136 memset(&cinfo, 0, sizeof(struct jpeg_compress_struct)); | |
137 | |
1604 | 138 Internals::JpegErrorManager jerr; |
1602 | 139 cinfo.err = jerr.GetPublic(); |
140 | |
141 if (setjmp(jerr.GetJumpBuffer())) | |
142 { | |
143 /* If we get here, the JPEG code has signaled an error. | |
144 * We need to clean up the JPEG object, close the input file, and return. | |
145 */ | |
146 jpeg_destroy_compress(&cinfo); | |
147 fclose(fp); | |
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148 throw OrthancException(ErrorCode_InternalError, |
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149 "Error during JPEG encoding: " + jerr.GetMessage()); |
1602 | 150 } |
151 | |
152 // Do not allocate data on the stack below this line! | |
153 | |
154 jpeg_create_compress(&cinfo); | |
155 jpeg_stdio_dest(&cinfo, fp); | |
156 Compress(cinfo, lines, width, height, format, quality_); | |
157 | |
158 // Everything went fine, "setjmp()" didn't get called | |
159 | |
160 fclose(fp); | |
161 } | |
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162 #endif |
1602 | 163 |
164 | |
1916 | 165 void JpegWriter::WriteToMemoryInternal(std::string& jpeg, |
166 unsigned int width, | |
167 unsigned int height, | |
168 unsigned int pitch, | |
169 PixelFormat format, | |
170 const void* buffer) | |
1602 | 171 { |
172 std::vector<uint8_t*> lines; | |
173 GetLines(lines, height, pitch, format, buffer); | |
174 | |
175 struct jpeg_compress_struct cinfo; | |
176 memset(&cinfo, 0, sizeof(struct jpeg_compress_struct)); | |
177 | |
1604 | 178 Internals::JpegErrorManager jerr; |
1602 | 179 |
180 unsigned char* data = NULL; | |
5549 | 181 |
182 #if ((JPEG_LIB_VERSION_MAJOR < 9) || \ | |
183 (JPEG_LIB_VERSION_MAJOR == 9 && JPEG_LIB_VERSION_MINOR <= 3)) | |
184 /** | |
185 * jpeg_mem_dest() has "unsigned long*" as its 3rd parameter until | |
186 * jpeg-9c. Since jpeg-9d, this is a "size_t*". | |
187 **/ | |
188 unsigned long size; | |
189 #else | |
190 size_t size; | |
191 #endif | |
1602 | 192 |
193 if (setjmp(jerr.GetJumpBuffer())) | |
194 { | |
195 jpeg_destroy_compress(&cinfo); | |
196 | |
197 if (data != NULL) | |
198 { | |
199 free(data); | |
200 } | |
201 | |
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202 throw OrthancException(ErrorCode_InternalError, |
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203 "Error during JPEG encoding: " + jerr.GetMessage()); |
1602 | 204 } |
205 | |
206 // Do not allocate data on the stack below this line! | |
207 | |
208 jpeg_create_compress(&cinfo); | |
209 cinfo.err = jerr.GetPublic(); | |
210 jpeg_mem_dest(&cinfo, &data, &size); | |
211 | |
212 Compress(cinfo, lines, width, height, format, quality_); | |
213 | |
214 // Everything went fine, "setjmp()" didn't get called | |
215 | |
5548 | 216 jpeg.assign(reinterpret_cast<const char*>(data), static_cast<size_t>(size)); |
1602 | 217 free(data); |
218 } | |
4300 | 219 |
220 uint8_t JpegWriter::GetQuality() const | |
221 { | |
222 return quality_; | |
223 } | |
1602 | 224 } |