Mercurial > hg > orthanc
annotate OrthancFramework/Sources/Images/JpegWriter.cpp @ 5814:122fd5f97d39
fix
| author | Alain Mazy <am@orthanc.team> |
|---|---|
| date | Wed, 25 Sep 2024 16:36:04 +0200 |
| parents | f7adfb22e20e |
| children |
| 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 } |