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annotate Resources/Orthanc/Core/Images/PngWriter.cpp @ 200:03afbee0cc7b

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integration of Orthanc core into Stone
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 23 Mar 2018 11:04:03 +0100
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200
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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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) 2017-2018 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU General Public License as
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9 * published by the Free Software Foundation, either version 3 of the
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10 * License, or (at your option) any later version.
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11 *
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12 * In addition, as a special exception, the copyright holders of this
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13 * program give permission to link the code of its release with the
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14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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15 * that use the same license as the "OpenSSL" library), and distribute
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16 * the linked executables. You must obey the GNU General Public License
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17 * in all respects for all of the code used other than "OpenSSL". If you
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18 * modify file(s) with this exception, you may extend this exception to
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19 * your version of the file(s), but you are not obligated to do so. If
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20 * you do not wish to do so, delete this exception statement from your
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21 * version. If you delete this exception statement from all source files
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22 * in the program, then also delete it here.
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23 *
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24 * This program is distributed in the hope that it will be useful, but
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25 * WITHOUT ANY WARRANTY; without even the implied warranty of
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26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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27 * General Public License for more details.
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28 *
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29 * You should have received a copy of the GNU General Public License
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30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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31 **/
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32
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33
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34 #include "../PrecompiledHeaders.h"
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35 #include "PngWriter.h"
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36
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37 #include <vector>
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38 #include <stdint.h>
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39 #include <png.h>
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40 #include "../OrthancException.h"
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41 #include "../ChunkedBuffer.h"
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42 #include "../Toolbox.h"
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43
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44 #if ORTHANC_SANDBOXED == 0
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45 # include "../SystemToolbox.h"
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46 #endif
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47
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48
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49 // http://www.libpng.org/pub/png/libpng-1.2.5-manual.html#section-4
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50 // http://zarb.org/~gc/html/libpng.html
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51 /*
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52 void write_row_callback(png_ptr, png_uint_32 row, int pass)
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53 {
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54 }*/
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55
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56
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57
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58
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59 /* bool isError_;
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60
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61 // http://www.libpng.org/pub/png/book/chapter14.html#png.ch14.div.2
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62
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63 static void ErrorHandler(png_structp png, png_const_charp message)
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64 {
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65 printf("** [%s]\n", message);
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66
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67 PngWriter* that = (PngWriter*) png_get_error_ptr(png);
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68 that->isError_ = true;
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69 printf("** %d\n", (int)that);
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70
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71 //((PngWriter*) payload)->isError_ = true;
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72 }
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73
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74 static void WarningHandler(png_structp png, png_const_charp message)
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75 {
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76 printf("++ %d\n", (int)message);
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77 }*/
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78
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79
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80 namespace Orthanc
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81 {
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82 struct PngWriter::PImpl
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83 {
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84 png_structp png_;
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85 png_infop info_;
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86
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87 // Filled by Prepare()
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88 std::vector<uint8_t*> rows_;
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89 int bitDepth_;
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90 int colorType_;
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91 };
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92
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93
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94
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95 PngWriter::PngWriter() : pimpl_(new PImpl)
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96 {
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97 pimpl_->png_ = NULL;
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98 pimpl_->info_ = NULL;
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99
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100 pimpl_->png_ = png_create_write_struct
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101 (PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); //this, ErrorHandler, WarningHandler);
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102 if (!pimpl_->png_)
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103 {
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104 throw OrthancException(ErrorCode_NotEnoughMemory);
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105 }
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106
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107 pimpl_->info_ = png_create_info_struct(pimpl_->png_);
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108 if (!pimpl_->info_)
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109 {
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110 png_destroy_write_struct(&pimpl_->png_, NULL);
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111 throw OrthancException(ErrorCode_NotEnoughMemory);
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112 }
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113 }
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114
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115 PngWriter::~PngWriter()
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116 {
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117 if (pimpl_->info_)
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118 {
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119 png_destroy_info_struct(pimpl_->png_, &pimpl_->info_);
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120 }
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121
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122 if (pimpl_->png_)
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123 {
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124 png_destroy_write_struct(&pimpl_->png_, NULL);
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125 }
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126 }
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127
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128
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129
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130 void PngWriter::Prepare(unsigned int width,
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131 unsigned int height,
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132 unsigned int pitch,
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133 PixelFormat format,
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134 const void* buffer)
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135 {
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136 pimpl_->rows_.resize(height);
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137 for (unsigned int y = 0; y < height; y++)
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138 {
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139 pimpl_->rows_[y] = const_cast<uint8_t*>(reinterpret_cast<const uint8_t*>(buffer)) + y * pitch;
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140 }
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
141
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
142 switch (format)
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
143 {
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
144 case PixelFormat_RGB24:
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
145 pimpl_->bitDepth_ = 8;
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
146 pimpl_->colorType_ = PNG_COLOR_TYPE_RGB;
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
147 break;
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
148
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
149 case PixelFormat_RGBA32:
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
150 pimpl_->bitDepth_ = 8;
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
151 pimpl_->colorType_ = PNG_COLOR_TYPE_RGBA;
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
152 break;
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
153
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
154 case PixelFormat_Grayscale8:
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
155 pimpl_->bitDepth_ = 8;
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
156 pimpl_->colorType_ = PNG_COLOR_TYPE_GRAY;
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
157 break;
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
158
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
159 case PixelFormat_Grayscale16:
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
160 case PixelFormat_SignedGrayscale16:
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
161 pimpl_->bitDepth_ = 16;
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
162 pimpl_->colorType_ = PNG_COLOR_TYPE_GRAY;
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
163 break;
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
164
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
165 default:
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
166 throw OrthancException(ErrorCode_NotImplemented);
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
167 }
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
168 }
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
169
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
170
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
171 void PngWriter::Compress(unsigned int width,
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
172 unsigned int height,
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
173 unsigned int pitch,
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
174 PixelFormat format)
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
175 {
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
176 png_set_IHDR(pimpl_->png_, pimpl_->info_, width, height,
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
177 pimpl_->bitDepth_, pimpl_->colorType_, PNG_INTERLACE_NONE,
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
178 PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
179
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
180 png_write_info(pimpl_->png_, pimpl_->info_);
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
181
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
182 if (height > 0)
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
183 {
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
184 switch (format)
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
185 {
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
186 case PixelFormat_Grayscale16:
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
187 case PixelFormat_SignedGrayscale16:
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
188 {
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
189 int transforms = 0;
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
190 if (Toolbox::DetectEndianness() == Endianness_Little)
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
191 {
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
192 transforms = PNG_TRANSFORM_SWAP_ENDIAN;
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
193 }
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
194
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
195 png_set_rows(pimpl_->png_, pimpl_->info_, &pimpl_->rows_[0]);
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
196 png_write_png(pimpl_->png_, pimpl_->info_, transforms, NULL);
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
197
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
198 break;
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
199 }
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
200
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
201 default:
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
202 png_write_image(pimpl_->png_, &pimpl_->rows_[0]);
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
203 }
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
204 }
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
205
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
206 png_write_end(pimpl_->png_, NULL);
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
207 }
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
208
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
209
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
210 #if ORTHANC_SANDBOXED == 0
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
211 void PngWriter::WriteToFileInternal(const std::string& filename,
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
212 unsigned int width,
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
213 unsigned int height,
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
214 unsigned int pitch,
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
215 PixelFormat format,
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
216 const void* buffer)
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
217 {
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
218 Prepare(width, height, pitch, format, buffer);
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
219
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
220 FILE* fp = SystemToolbox::OpenFile(filename, FileMode_WriteBinary);
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
221 if (!fp)
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
222 {
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
223 throw OrthancException(ErrorCode_CannotWriteFile);
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
224 }
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
225
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
226 png_init_io(pimpl_->png_, fp);
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
227
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
228 if (setjmp(png_jmpbuf(pimpl_->png_)))
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
229 {
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
230 // Error during writing PNG
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
231 throw OrthancException(ErrorCode_CannotWriteFile);
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
232 }
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
233
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
234 Compress(width, height, pitch, format);
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
235
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
236 fclose(fp);
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
237 }
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
238 #endif
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
239
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
240
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
241 static void MemoryCallback(png_structp png_ptr,
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
242 png_bytep data,
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
243 png_size_t size)
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
244 {
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
245 ChunkedBuffer* buffer = reinterpret_cast<ChunkedBuffer*>(png_get_io_ptr(png_ptr));
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
246 buffer->AddChunk(reinterpret_cast<const char*>(data), size);
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
247 }
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
248
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
249
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
250
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
251 #if ORTHANC_SANDBOXED == 0
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
252 void PngWriter::WriteToMemoryInternal(std::string& png,
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
253 unsigned int width,
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
254 unsigned int height,
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
255 unsigned int pitch,
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
256 PixelFormat format,
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
257 const void* buffer)
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
258 {
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
259 ChunkedBuffer chunks;
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
260
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
261 Prepare(width, height, pitch, format, buffer);
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
262
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
263 if (setjmp(png_jmpbuf(pimpl_->png_)))
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
264 {
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
265 // Error during writing PNG
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
266 throw OrthancException(ErrorCode_InternalError);
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
267 }
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
268
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
269 png_set_write_fn(pimpl_->png_, &chunks, MemoryCallback, NULL);
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
270
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
271 Compress(width, height, pitch, format);
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
272
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
273 chunks.Flatten(png);
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
274 }
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
275 #endif
03afbee0cc7b integration of Orthanc core into Stone
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
276 }